Component of timepiece, movement and timepiece.

专利摘要:
Provided are a timepiece component, movement and timepiece which have excellent performance in retaining lubricating oil. A timepiece component (235) includes a sliding surface (115) and a non-sliding surface (117). The difference (AB) between the surface tension (A) of the sliding surface 115 and the surface tension (B) of the non-slip surface (117) is greater than or equal to 5 mN / m, while the surface tension (B) the non-slip surface is less than or equal to 20 mN / m. Preferably, the surface tension (A) of the sliding surface is greater than or equal to 21 mN / m.
公开号:CH716019A2
申请号:CH00347/20
申请日:2020-03-24
公开日:2020-09-30
发明作者:Nakamura Takahiko
申请人:Seiko Instr Inc；
IPC主号:

专利说明:

BACKGROUND OF THE INVENTION
1. Field of the invention
The present invention relates to a timepiece component, a movement and a timepiece.
2. Description of the related art
[0002] A driving force is continuously or intermittently applied to a component of a timepiece used in a timepiece, for example, to an escapement mobile or else to an anchor. Therefore, in order to reduce the friction caused by sliding during rotation or the like, it is necessary that lubricating oil be retained at the sliding area of the timepiece component.
[0003] For example, Japanese Patent No. 4545405 discloses a technology for retaining lubricating oil where the lubricating oil is applied, forming an oil repellant film by means of a treating agent. fluorine based throughout the timepiece component.
However, it cannot be said of the timepiece component described in Japanese Patent No. 4545405 that it exhibits sufficient performance in terms of retaining lubricating oil. Therefore, wear of the timepiece component may occur due to lack of lubricating oil.
[0005] Further, when the concentration of the treating agent which forms the oil repellent film is low, a portion not subjected to the surface treatment may appear. As a result, the lubricating oil may spill out by wetting, and wear of the timepiece component may occur due to lack of lubricating oil caused by evaporation.
SUMMARY OF THE INVENTION
One aspect of the present application is to provide a timepiece component, a movement and a timepiece which exhibit excellent performance in retaining lubricating oil.
[0007] One aspect of the application provides a timepiece component. This timepiece component includes a sliding surface and a non-sliding surface. The difference (AB) between the surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface is greater than or equal to 5 mN / m, and the surface tension (B) of the non-slip surface is less than or equal to 20 mN / m.
[0008] With this constitution, the lubricating oil is easily retained on the sliding surface and in its vicinity. Therefore, since the state in which lubricating oil is present on the sliding surface is maintained, deterioration due to wear of the timepiece component and the like can be avoided and stable operation can be obtained. over a long period of time.
[0009] Preferably, the surface tension (A) of the sliding surface is greater than or equal to 21 mN / m.
[0010] With this constitution, since the affinity with the lubricating oil is improved, the lubricating oil is more easily retained on the sliding surface and in its vicinity. Therefore, the ability to retain oil can be further improved.
[0011] One aspect of the application provides for a movement comprising the timepiece component.
[0012] With this constitution, since the timepiece component is provided, stable operation can be obtained over a long period of time and reliability can be improved.
[0013] One aspect of the application provides a timepiece comprising the movement.
[0014] With this constitution, since the timepiece component is provided, stable operation can be obtained over a long period of time and reliability can be improved.
[0015] According to one embodiment of the application, a high capacity to retain oil to retain lubricating oil is obtained.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a plan view showing a state of a front side of a movement comprising a timepiece component according to a first embodiment of the invention. Fig. 2 is a plan view showing a state of an escapement wheel set which constitutes the timepiece component according to the first embodiment. Fig. 3 is a plan view showing a state of an anchor which constitutes the timepiece component according to the first embodiment. FIG. 4 is a side view showing a state of a component of a timepiece according to a second embodiment of the invention. Figure 5 is a perspective view and a cross-sectional view showing, the first, a component of a timepiece according to a third embodiment of the invention and, the second, a part of this component of a timepiece. watchmaking. FIG. 6 is a perspective view showing a state of a component of a timepiece according to another embodiment of the invention. FIG. 7 is a perspective view showing a state of a component of a timepiece according to another embodiment of the invention. Fig. 8 is a plan view showing a state of a support plate employed in Examples and Comparative Examples. Fig. 9 is a plan view showing an evaluation criterion of a test piece from Examples and Comparative Examples. Figure 9 (a) shows a state before a slip (before a slip spread), while Figure 9 (b) shows a state where the evaluation is "O", while Figure 9 (c) shows a state where the evaluation is "Δ", that figure 9 (d) shows a state where the evaluation is "× 1", that figure 9 (e) shows a state where the evaluation is "× 2", that Fig. 9 (f) shows a state where the evaluation is "× 3", and Fig. 9 (g) shows a state where the evaluation is "× 4".
DESCRIPTION OF EMBODIMENTS
Embodiments of the invention will now be described with reference to the accompanying drawings.
In the following description, constitutions having identical or similar functions are designated by the same reference numbers. We will omit to repeat the description of these constitutions.
[0019] In addition, in each of the following drawings, in order to make these drawings easy to examine, part of one of the timepiece components and part of the movement are not shown, while the component timepiece and movement can be shown in a simplified manner.
First embodiment
Referring to Figure 1, we will now describe a movement and a timepiece which include a timepiece component according to a first embodiment of the invention.
[0021] In general, a mechanical assembly comprising the drive part of a timepiece is called a "movement". A condition in which a dial and hands are assembled to the movement and in which the whole is put into a watch case to constitute a finished product is called a "complete timepiece".
[0022] Figure 1 is a plan view of the front side of the movement.
As shown in Figure 1, a mechanical timepiece 201 comprises a movement 210 and a box (not shown) which receives the movement 210.
[0024] The movement 210 includes a plate 211 which constitutes a plate forming a frame. A dial (not shown) is provided on the rear side of the plate 211. Further, a gear mounted on the front side of the movement 210 is called the front gear, while a gear mounted on the rear side of the movement 210 is called the gear. back.
A winding stem guide hole 211a is formed in the plate 211 and a winding stem 212 enters the winding stem guide hole 211a so as to be rotatable. The position of the winding stem 212 in an axial direction is determined by a switching device comprising a pull tab 213, a lever 214, a rocker spring 215 and a pull tab 216. In addition, a winding pinion 217 is mounted. rotating on a shaft portion forming a guide for the winding stem 212.
When turning the winding stem 212 while this winding stem is in a first adjustment position (level 0) most inside the movement 210 in the direction of the axis of rotation, the pinion winding 217 rotates by the rotation of a sliding pinion (not shown). Then, a crown wheel 220 which meshes with the winding pinion 217 turns due to the rotation of this winding pinion 217. A ratchet 221, which meshes with the crown wheel 220, turns due to the rotation of this winding wheel. crown 220. In addition, a barrel spring or mainspring (the power source) (not shown) housed in a movement barrel 222 is armed due to the rotation of the ratchet 221.
The front gear of the movement 210 comprises a center mobile 225, an average mobile 226 and a second mobile 227, in addition to the movement barrel 222 described above, and its function is to transmit a rotational force of the movement barrel 222. An escapement 230 and a speed regulating mechanism 231 provided to control the rotation of the front gear are mounted on the front side of the movement 210.
[0028] The center mobile 225 is a gear element which meshes with the movement barrel 222. The average mobile 226 is a gear element which meshes with the center mobile 225. The seconds mobile 227 is a gear element which meshes with the average mobile 226.
The speed regulation mechanism 231 is a mechanism which regulates the speed of the escapement 230 and it comprises a sprung balance 240. The escapement 230 controls the rotation of the front gear described above and it comprises a mobile d 'escapement 235 which meshes with the second mobile 227, as well as an anchor 236 which causes the escape mobile 235 to be released and rotate regularly. The escapement 230 is a component of a timepiece according to the first embodiment of the invention.
FIG. 2 is a plan view of the exhaust mobile 235 which belongs to the exhaust 230. FIG. 3 is a plan view of the anchor 236 which belongs to the exhaust 230.
Mobile exhaust
As shown in Figure 2, the escape wheel 235 comprises an escape wheel 101 and a shaft 102 fixed coaxially to the escape wheel 101. A direction orthogonal to the axis of the shaft 102 is called a radial direction. In FIG. 2, the direction of rotation of the exhaust mobile 235 is indicated by the arrow CW.
The escape wheel 101 comprises an annular rim 111, a hub 112 disposed inside the rim 111, as well as several spokes 113 which connect the rim 111 to the hub 112. The hub 112 has a disc shape . The shaft 102 is fixed to a central portion of the hub 112 by driving or the like. Each of the spokes 113 extends radially from an outer peripheral edge of the hub 112 to an inner peripheral edge of the rim 111.
At an outer peripheral surface of the serge 111, several teeth 114 having a special hook shape are arranged so as to project outwardly, in the radial direction. Paddles 144a and 144b (see Fig. 3) of anchor 236, which will be described later, cooperate with the end end portions of teeth 114.
The side surfaces of the end terminal portion of the tooth 114 comprises a rest plane 115a which is located on the rear side of the end terminal portion in the direction of rotation CW of the exhaust mobile 235 and against which the vanes 114a and 114b abut, a rear surface 115b lying on the front of the end terminal portion in the direction of rotation CW, as well as an impulse plane 115c which is the terminal surface d end of tooth 114.
A corner formed by the rest plane 115a and the pulse plane 115c fulfills the function of a rest beak 115d. A wedge formed by the rear surface 115b and the pulse plane 115c performs the function of a pulse nozzle 115e.
On the tooth 114, an extent extending from the rest plane 115a to the pulse nozzle 115e, crossing the rest nose 115d, forms a sliding surface 115. The sliding surface may be in contact with a other timepiece component.
[0037] In addition, a surface of the exhaust mobile 235 other than the sliding surface 115 is a non-slip surface 117. A non-slip surface is not in contact with another component of the workpiece. watchmaking.
The difference (AB) between the surface tension (A) of the sliding surface 115 and the surface tension (B) of the non-slip surface 117 is greater than or equal to 5 mN / m, preferably greater than or equal to 10 mN / m, more preferably greater than or equal to 13 mN / m and even more preferably greater than or equal to 16 mN / m. If the difference between the surface tension (A) of the sliding surface 115 and the surface tension (B) of the non-slip surface 117 is equal to or greater than the values of the above-mentioned lower limits, when lubricating oil is applied to the sliding surface 115, a high oil-retaining capacity to retain the lubricating oil is obtained and the lubricating oil is easily retained on the sliding surface 115 and in its vicinity. Therefore, the lubricating oil is less likely to flow off the sliding surface. Therefore, since the state where lubricating oil is present on the sliding surface 115 is maintained, deterioration due to wear of the exhaust mobile 235 and the like can be avoided and stable operation can be achieved on. a long period of time.
There is not particularly an upper limit for the value of the difference (AB) between the surface tension (A) of the sliding surface 115 and the surface tension (B) of the non-slip surface 117 .
The surface tension (B) of the non-slip surface 117 is less than or equal to 20 mN / m, preferably less than or equal to 15 mN / m, and more preferably less than or equal to 11 mN / m . If the surface tension (B) is less than or equal to the above-mentioned upper limits, when lubricating oil is applied to the sliding surface 115, the lubricating oil is less likely to be spread by wetting. Therefore, since the lubricating oil is less likely to evaporate and the condition where the lubricating oil is present on the sliding surface 115 is maintained, deterioration due to wear of the moving body. exhaust 235 and the like can be avoided and stable operation can be obtained over a long period of time.
[0041] There is not particularly a lower limit for the surface tension (B) of the non-slip surface 117 and a lower limit for the surface tension (B) of the non-slip surface 117 is preferably equal to 8 mN / m.
The surface tension (A) of the sliding surface 115 is preferably greater than or equal to 21 mN / m, more preferably greater than or equal to 23 mN / m, and even more preferably greater than or equal to 25 mN / m. If the surface tension (A) of the sliding surface 115 is greater than or equal to the lower limits mentioned above, the affinity with the lubricating oil is improved. When lubricating oil is applied to the sliding surface 115, the ability to retain oil to retain lubricating oil is higher. Therefore, the lubricating oil is less likely to flow out of the sliding surface 115. Therefore, since the state where the lubricating oil is present on the sliding surface 115 is maintained further, deterioration due to the sliding surface 115 is maintained. Wear of the exhaust mobile 235 and the like can be further avoided and more stable operation can be obtained over a long period of time.
There is not particularly an upper limit for the surface tension (A) of the sliding surface 115. An upper limit for the surface tension (A) of the sliding surface 115 can be determined depending on the type. lubricating oil. For example, 100 mN / m is preferable.
[0044] When the timepiece component is subjected to vibration, the lubricating oil may be dispersed. In particular, on parts where a grip is intermittently repeated, such as the escapement including the escape mobile and the anchor, and such as the calendar mechanism comprising a date indicator and a date jumper described more low the dispersion of the lubricating oil tends to be noticeable.
If the difference (AB) between the surface tension (A) of the sliding surface 115 and the surface tension (B) of the non-slip surface 117 is greater than or equal to 5 mN / m and if the tension surface (B) of the non-slip surface 117 is less than or equal to 20 mN / m, the lubricating oil is less likely to be dispersed even when the exhaust mobile 235 is subjected to vibrations. Therefore, since the presence of the lubricating oil on the sliding surface 115 is more stable, deterioration due to wear of the exhaust mobile 235 and the like can be effectively avoided.
The surface tension (A) of the sliding surface 115 is calculated by means of the Zisman graph (called "Zisman plot" in English). More precisely, we first drop several test solutions having different surface tensions on the sliding surface 115 so as to form drops, we measure the contact angle (θ) between each of the drops and the sliding surface 115 and the corresponding cosθ is calculated. Then, the surface tensions of the test solutions are placed on the abscissa and the values of cosθ are placed on the ordinate (graphical representation of cosθ as a function of the surface tension) so as to produce the Zisman graph. The value of the surface tension when cosθ = 1 on a primary straight line of approximation is calculated. These operations are carried out in five different positions on the sliding surface 115 so as to produce Zisman graphs, the values of the surface tension are calculated when cosθ = 1 on the respective primary straight lines of approximation and the average of these values is chosen as being the surface tension of the sliding surface 115. In addition, the formation of the drops and the measurement of the contact angles (θ) are carried out at 25 ° C.
[0047] The surface tension (B) of the non-slip surface 117 is also measured, proceeding in a manner which is similar to that employed for the surface tension (A) of the slip surface 115 except that the points measurements are transferred from the sliding surface 115 to the non-sliding surface 117.
The surface tension (A) of the sliding surface 115 can have the same value at all points of the sliding surface 115 or can have different values at different points of this sliding surface 115 when the difference between the surface tension (A) of the sliding surface 115 and the surface tension (B) of the non-slip surface 117 is within the range mentioned above. The surface tension (B) of the non-slip surface 117 may have the same value at all points of the non-slip surface 117 or may have different values at different points of the non-slip surface 117, therefore that the difference is on the range mentioned above.
Pentane (16.0 mN / m), heptadecane (27.4 mN / m), iodocyclohexane (35.7 mN / m), ethylene glycol (48.4 mN / m), formamide (58.1 mN / m), diiodomethane (66.2 mN / m), glycerin (63.4 mN / m) and distilled water (72.8 mN / m) were used as test solutions.
[0050] Furthermore, the numerical values are the surface tensions at 25 ° C.
[0051] There is no particular limitation on the lubricating oil as long as the lubricating oil is a lubricating oil used for timepieces. Examples of lubricating oil include: - an aliphatic hydrocarbon oil such as poly-alpha-olefin (PAO) and polybutene; - an aromatic hydrocarbon oil such as alkylbenzene and alkylnaphthalene; - an ester oil such as the polyol ester and the phosphate ester; - an ether oil such as polyphenyl ether; - a polyalkylene glycol oil; - a silicone oil; - a fluorinated oil; - and the like.
In order to make the surface tension (A) of the sliding surface 115, the surface surface (B) of the non-slip surface 117 and the difference (AB) between the surface tension (A) and the tension surface (B) are within the ranges mentioned above, an oil repellent film 118 can be formed by treating the area (surface to be treated) intended to form the non-slip surface 117 with, for example, a repellent treatment for oil which will be specified later. More specifically, the timepiece component is deposited on a support plate such as a silicon wafer or a metal coil, and an outer shape of the timepiece component other than the sliding portion is achieved by a method suitable for the material of the backing plate, such as engraving or laser processing. Then, after the backing plate has been subjected to the surface treatment using the oil repellent treatment agent, when a portion corresponding to the slip portion is punched, the oil repellent film 118 is formed only on the area (surface to be treated) intended to form the non-slip surface 117. Further, after the oil repellent film 118 has been formed over the entire surface of the timepiece component, the oil repellent film 118 can be removed by wearing away (scraping, abrading) the oil repellent film 118 on the area to form the sliding surface 115, using a brush or the like. In this way, the oil repellent film remains only on the non-slip surface 117.
In addition, an oil retaining film 116 can be formed by treating the area (surface to be treated) intended to form the sliding surface 115 by means of an oil retaining treatment agent which will be described. afterwards, or the oil repellent film 118 can be formed on the area (surface to be treated) intended to form the non-slip surface 117 and the oil retaining film 116 can be formed on the area (surface to be treated ) intended to form the sliding surface 115.
Anchor
As shown in Figure 3, the anchor 236 comprises a T-shaped anchor body 142d with three anchor arms 143, as well as an anchor rod 142f. The anchor body 142d is pivotally mounted by means of the anchor rod 142f, which is a shaft. The two ends of the anchor rod 142f are rotatably supported, one by the plate 211 of the movement 210 shown in Figure 1 and the other by an anchor bridge (not shown). Additionally, the pivot range of anchor 236 is limited by limitation pins (not shown).
The ends of two of the three anchor arms 143 are provided with pallets (the input pallet 144a and the output pallet 144b). A dart 145, which can detachably cooperate with a double plate (not shown) of the sprung balance 240 of the movement 210 shown in Figure 1, is attached to the end of the remaining anchor arm 143. The pallets (the entry pallet 144a and the exit pallet 144b) are made of a ruby having a prismatic shape and are glued and secured to the anchor arm 143 by an adhesive or the like.
The end terminal portion of the outlet pallet 144b comprises a rest plane 146a which is positioned on the front of the end terminal portion in the direction of rotation CW of the escape wheel 101 shown in FIG. 2 and against which the plane of rest 115a of the tooth 114 abuts, a reverse 146b located on the rear of the end terminal portion in the direction of rotation CW, as well as an impulse plane 146c which is the end surface at the end of the exit pallet 144b.
A corner formed by the rest plane 146a and the impulse plane 146c fulfills the function of a rest beak 146d. A wedge formed by the reverse 146b and the impulse plane 146c fulfills the function of an impulse beak 146e.
On the output pallet 144b, an extent extending from the rest plane 146a to the impulse nozzle 146 <e>, passing through the impulse nozzle 146e, forms a sliding surface 146.
[0059] Further, a surface of the anchor 236 other than the sliding surface 146 is a non-slip surface 148.
Since the end terminal portion of the inlet pallet 144a has a construction similar to that of the end terminal portion of the outlet pallet 144b, its description will be omitted.
The difference (AB) between the surface tension (A) of the sliding surface 146 and the surface tension (B) of the non-slip surface 148 is greater than or equal to 5 mN / m, preferably greater than or equal at 10 mN / m, more preferably greater than or equal to 13 mN / m, and even more preferably greater than or equal to 16 mN / m. If the difference between the surface tension (A) of the sliding surface 146 and the surface tension (B) of the non-slip surface 148 is greater than or equal to the lower limits mentioned above, when lubricating oil is applied to the sliding surface 146, a high oil-retaining capacity for retaining the lubricating oil is obtained and the lubricating oil is easily retained on the sliding surface 146 and in its vicinity. Therefore, the lubricating oil is less likely to flow out of the sliding surface 146. Since the state that the lubricating oil is present on the sliding surface 146 is maintained, deterioration due to wear of anchor 236 and the like can be avoided and stable operation can be obtained over a long period of time.
There is no particular upper limit for the difference (A-B) between the surface tension (A) of the sliding surface 146 and the surface tension (B) of the non-slip surface 148.
The surface tension (B) of the non-slip surface 148 is less than or equal to 20 mN / m, preferably less than or equal to 15 mN / m, and more preferably less than or equal to 11 mN / mr. If the surface tension (B) of the non-slip surface 148 is less than or equal to the upper limits mentioned above, when lubricating oil is applied to the sliding surface 146, the lubricating oil has less chance of spreading by wetting. Therefore, since the lubricating oil is less likely to evaporate and the state where lubricating oil is present on the sliding surface 146 is maintained, deterioration due to wear of the anchor 236 or the like can be avoided and stable operation can be obtained over a long period of time.
[0064] There is not particularly a lower limit for the surface tension (B) of the non-slip surface 148. A lower limit for the surface tension (B) of the non-slip surface 148 is preferably equal to 8 mN / m.
The surface tension (A) of the sliding surface 146 is preferably greater than or equal to 21 mN / m, more preferably greater than or equal to 23 mN / m, and even more preferably greater than or equal to 25 mN / m. If the surface tension (A) of the sliding surface 146 is greater than or equal to the lower limits mentioned above, the affinity with the lubricating oil is improved and a higher oil holding capacity is exerted on lubricating oil when lubricating oil is applied to the sliding surface 146. Therefore, the lubricating oil is less likely to flow out of the sliding surface 146. Therefore, since the state where lubricating oil is present on the sliding surface 146 is maintained further, deterioration due to wear of the anchor 236 and the like can be further avoided and more stable operation can be obtained over a long period of time .
[0066] There is not particularly an upper limit for the surface tension (A) of the sliding surface 146. An upper limit for the surface tension (A) of the sliding surface 146 can be determined depending on the type. lubricating oil. For example, 100 mN / m is preferred.
[0067] The surface tension (A) of the sliding surface 146 and the surface tension (B) of the non-slip surface 148 are calculated by means of the Zisman graph. More precisely, the calculation is carried out in a manner similar to that employed in the case of the surface tension (A) of the sliding surface of the exhaust mobile and the surface tension (B) of the non-slip surface of this mobile exhaust.
The surface tension (A) of the sliding surface 146 can have the same value at all points of the sliding surface 146 or can have different values at different points of this sliding surface 146, as long as the difference between the surface tension (A) of the sliding surface 146 and the surface tension (B) of the non-slip surface 148 is within the range mentioned above. The surface tension (B) of the non-slip surface 148 may have the same value at all points of the non-slip surface 148 or may have different values at different points of this slip surface 148, as long as the the difference is on the range mentioned above.
In order to make the surface tension (A) of the sliding surface 146, the surface tension (B) of the non-slip surface 148 and the difference (AB) between the surface tension (A) and the tension surface (B) are on the aforementioned ranges, an oil repellent film 149 can be formed by treating the area (surface to be treated) intended to form the non-slip surface 148, by means, for example, of d an oil repellant treatment agent which will be described later. A specific method is similar to that used in the case of the escape rover.
[0070] In addition, an oil retaining film 147 can be formed by treating an area (surface to be treated) intended to form the sliding surface 146, by means of an oil retaining treatment agent which will be described below, or the oil retaining film 149 can be formed on the area (surface to be treated) intended to form the non-slip surface 148 and the oil retaining film 147 formed on the area (surface to be treated). treat) intended to form the sliding surface 146.
Oil repellent film
The oil repellent films 118 and 149 are made, for example, of a material having a smaller surface energy than that of the material constituting the surface to be treated.
The oil repellent films 118 and 149 contain, for example, a fluorinated compound.
The fluorinated compound is not particularly limited since the surface tensions (B) of the surfaces (that is to say of the non-slip surfaces 117 and 148) are on the ranges mentioned above when the Oil repellent films 118 and 149 were formed. Examples of fluorinated compounds include polytetrafluoroethylene, polyvinylidene fluoride, and polyvinyl fluoride. In addition, a commercial product can be used as a fluorinated compound. Examples of commercial products include: "HFD-1098" (trade name) manufactured by Harves Co., Ltd., "SFE-MS01" (trade name) manufactured by AGC Seimi Chemical Co., Ltd., and „Fixodrop ES / BS-10“ (trade name) manufactured by Moebius Company.
[0074] In order to form the oil repellent films 118 and 149, for example, an oil repellant treatment agent (also called a "fluorine-based treatment agent") containing a fluorinated compound is, for example example, employee. One type of fluorine compound can be used alone, or two or more kinds of fluorine compound can be used in combination.
[0075] The oil repellant treatment agent may contain a solvent. As the solvent, an alcohol, a ketone or the like can be employed. Examples of this alcohol include methanol, ethanol, propanol-1-ol (propyl alcohol), isopropyl alcohol, and 1-butanol. Examples of the ketone include acetone and methylethilketone.
[0076] In order to form the oil repellent films 118 and 149, the surfaces to be treated are coated with the oil repellant treatment agent so that coating films are formed. The coating films were dried to remove the solvents resulting in the oil repellent films 118 and 149. The surfaces of these oil repellant films 118 and 149 are the non-slip surfaces 117 and 148. The surface tensions (B) of the non-slip surfaces 117 and 148 can be adjusted by means of, for example, the type and content of the fluorinated compound in the oil repellent films 118 and 149, as well as by means the thickness of these oil repellent films 118 and 149.
[0077] Examples of coating methods for the oil repellant treatment agent include dipping, spraying, brush painting, curtain application and spray application.
[0078] In addition to the methods mentioned above, the oil repellent films 118 and 149 on the surfaces to be treated can be formed, for example, by an evaporation method employing the fluorinated compound.
The thickness of the oil repellent films 118 and 149 is preferably greater than or equal to 1 nm and less than 500 nm. If the thickness of the oil repellent films 118 and 149 is within the above-mentioned range, sufficient oil retaining capacity can be easily implemented without affecting the functions of the exhaust mobile 235 and anchor 236.
Oil retaining film
[0080] The oil retaining films 116 and 147 are made, for example, of a material having a surface energy greater than that of the material constituting the surface to be treated.
The oil retaining films 116 and 147 contain, for example, a compound defined by the following general formula (1) (referred to as the "compound (1)" in the following):
In the general formula (1), M <1> is silicon, titanium or zirconium, R is a hydrocarbon group, Y <1> and Y <2> are each a hydrocarbon group, a hydroxy group or well a functional group which generates a hydroxy group by hydrolysis or the like, while Z <1> is a polar group.
[0083] Examples of the hydrocarbon group include an alkyl group and an aryl group. Preferably, the hydrocarbon group is the alkyl group. The alkyl group is represented by CnH2n + 1 (where n is an integer). n is preferably one of the integers successive from the number 1 inclusive up to the number 18 inclusive. More preferably, n is one of the integers succeeding one another from the number 2 inclusive up to the number 14 inclusive. Even more preferably, n is one of the integers successive from the number 2 inclusive up to the number 10 inclusive. Particularly preferably, n is one of the integers succeeding one another from the number 3 inclusive up to the number 6 inclusive. If n is greater than or equal to the lower limits mentioned above, the ability to retain oil can be improved. If n is less than or equal to the upper limits mentioned above, deterioration of the film quality of the oil retaining film due to steric hindrance can be avoided. In particular, when n is less than or equal to 10, the time required for a polymerization reaction can be shortened.
Examples of the "functional group which generates a hydroxyl group by hydrolysis and the like" include an alkoxy group, an aminoxy group, a ketoxime group and an acetoxy group, and one of the above groups or two of the groups. above or more can be used. Examples of the alkoxy group include a methoxy group, an ethoxy group and a propoxy group, and one of the above groups or two or more of the above groups may be employed.
[0085] The polar group is a functional group having a polarity. Examples of the polar group include a hydroxy group, a carboxy group, a sulfo group, an amino group, a phosphoric acid group, a phosphino group, a silanol group, an epoxy group, an isocyanate group, a cyano group, a vinyl group. and a thiol group, and one of the above groups or two or more of these groups may be employed.
In compound (1), the functional group represented by Z <1>, Y <1>, and Y <2> may have a form in which part of the constituent elements are lacking due to bonding. For example, when it forms Z <1> the hydroxy group (-OH) can have the form “-O-” by being bound to the surface to be treated, by dehydration-condensation. When it forms Y <1> and Y <2>, the hydroxy group (-OH) can have the “-O-” form by being linked to another Y <1> or Y <2> by dehydration-condensation. Similarly, the carboxy group (-COOH) may have the form "-COO-" upon bond.
The content of the compound (1) relative to the total mass of the oil retaining films 116 and 147 is, for example, greater than or equal to 50% by mass.
In the compound (1), the polar group is, for example, bound or adsorbed to the material (for example an inorganic substance such as a metal) forming the surface to be treated, by dehydration-condensation, hydrogen bonding or similar. Compound (1) can provide oil retaining films 116 and 147 with high performance in retaining oil.
Examples of compound (1) can include a compound defined by the following general formula (2):
The compound (1) can be obtained, for example, by hydrolysis of a compound defined by the following general formula (3):
In general formula (3), M <1> is silicon, titanium, or zirconium, R is a hydrocarbon group, Y <1> and Y <2> are each independently a hydrocarbon group, a group hydroxy or a functional group which generates a hydroxy group by hydrolysis or the like, and X <1> is a functional group which generates a hydroxy group by hydrolysis and the like. Examples of compounds whose general formula is general formula (3) can include octyltriethoxysilane (eg triethoxy-n-octylsilane), triethoxyethylsilane and butyltrimethoxysilane which are represented by the following general formula (4):
To form the retaining films 116 and 147, one can, for example, use an oil retaining treatment which contains a solvent and an oil retaining agent which contains the compound (1). One type of compound (1) can be used alone or two or more types of compound (1) can be used in combination.
Preferably, the oil retaining agent contains at least one of the two substances which are an acid and a base. Although there is no particular limitation on the acid and the base since the acid and the base promote a hydrolysis reaction, examples for the acid include acetic acid, acid hydrochloric acid, nitric acid and sulfuric acid, while examples for the base include sodium hydroxide and potassium hydroxide. An amount of acid and base added per 100 parts by mass of component (1) is, for example, 1 to 20 parts by mass.
An additive (eg, a curing catalyst such as dibutyltin dilaurate) can be added to the oil retaining agent. An amount of the additive added to a total mass of oil retaining agent is, for example, 0.001 to 5% by mass.
As the solvent, an alcohol, a ketone and the like can be employed. Examples for alcohol include methanol, ethanol, propyl alcohol, isopropyl alcohol, and 1-butanol. Examples for the ketone include acetone and methyl ethyl ketone (butanone). In addition, the oil retaining treatment agent may not contain a solvent.
In order to form the oil retaining films 116 and 147, the surfaces to be treated are coated with an oil retaining treatment agent so as to form coating films. The coating films are dried to remove the solvents and the oil retaining films 116 and 147 are obtained. The surfaces of these oil retaining films 116 and 147 are the sliding surfaces 115 and 146. surface tensions (A) of the sliding surfaces 115 and 146 can be adjusted by varying, for example, the type of compound (1) and its content in the oil retaining films 116 and 147, as well as the thickness of these oil retaining films 116 and 147.
[0097] Examples of the method for applying the oil retaining treatment agent include dipping, spraying, brush painting, curtain application and spray application.
When the oil retaining films 116 and 147 contain the compound (1), the thickness of these oil retaining films 116 and 147 is preferably 0.1 to 1 μm. If the thickness of the oil retaining films 116 and 147 is within the above mentioned range, sufficient oil retaining capacity can be easily implemented without affecting the functions of the exhaust mobile 235 and the anchor 236.
The escapement 230, which is the component of a timepiece in the present embodiment, comprises the exhaust mobile 235 on which the difference (AB) between the surface tension (A) of the sliding surface 115 and the surface tension (B) of the non-slip surface 117 is greater than or equal to 5 mN / m and on which the surface tension (B) of the non-slip surface 117 is less than or equal to 20 mN / mr. Additionally, the escapement 230, which is the timepiece component in the present embodiment, includes the anchor 236 which includes the sliding surface 146 and the non-sliding surface 148 for which the difference (AB ) between the surface tension (A) of the sliding surface 146 and the surface tension (B) of the non-slip surface 148 is greater than or equal to 5 mN / m and for which the surface tension (B) of the surface non-slip 148 is less than or equal to 20 mN / m. Therefore, when lubricating oil is applied to the sliding surfaces 115 and 146, the high capacity of retaining oil to retain the lubricating oil is exerted, the lubricating oil is easily retained on. the sliding surfaces 115 and 146 and in their vicinity, and the lubricating oil is less likely to flow out of the sliding surfaces 115 and 146. Further, when lubricating oil is applied to the sliding surfaces 115 and 146, the lubricating oil is less prone to wetting spread and this lubricating oil is less likely to evaporate. Therefore, since the state where lubricating oil is present on the sliding surfaces 115 and 146 is maintained, deterioration due to wear of the exhaust 230 and the like can be avoided and stable operation can be obtained. over a long period of time. Further, even if the exhaust 230 experiences vibration, the lubricating oil is less likely to disperse from the slip area.
Second embodiment
A description will now be given of a timepiece component according to the second embodiment with reference to FIG. 4.
[0101] FIG. 4 is a side view showing a mobile 60 which is the component of a timepiece according to the second embodiment of the invention. As can be seen in Figure 4, the mobile 60 comprises a shaft 51 and a toothed portion 54, fixed to the shaft 51.
A first end 53 (first pivot) and a second end 54 (second pivot) of the shaft 51 are rotatably supported by a bearing (not shown). The outer peripheral surfaces of the first end 53 and the second end 54 are slidable relative to the inner peripheral surfaces of the respective bearings. An external peripheral surface of an intermediate portion 55 (intermediate portion in the longitudinal direction) of the shaft 51 can slide relative to the internal peripheral surface of a roadway (not shown). In other words, the outer peripheral surfaces of the first end 53, of the second end 54 and of the intermediate portion 55 of the shaft 51 are sliding surfaces of the mobile 60.
[0103] In addition, an external peripheral surface of the shaft 51 other than the sliding surfaces is a non-sliding surface of the mobile 60.
[0104] The difference (AB) between the surface tension (A) of the outer peripheral surface (sliding surface) of each of the portions which are the first end 53, the second end 54 and the intermediate portion 55 of the shaft 51 , and the surface tension (B) of the outer peripheral surface (non-slip surface) of the shaft 51 other than the outer peripheral surfaces of the first end 53, the second end 54 and the intermediate portion 55 is greater or equal to 5 mN / m, preferably greater than or equal to 10 mN / m, more preferably greater than or equal to 13 mN / m, and even more preferably greater than or equal to 16 mN / m. If the difference between the surface tension (A) of each of the sliding surfaces of the mobile 60 and the surface tension (B) of the non-slip surface of this mobile 61 is greater than or equal to the lower limits specified above, when lubricating oil is applied to the sliding surfaces of the movable 60, a high capacity of retaining oil to retain the lubricating oil is obtained, and the lubricating oil is easily retained on the sliding surfaces of mobile 60 or in their neighborhoods. Therefore, the lubricating oil is less prone to leaking out of the sliding surfaces of the mobile 60. Since the state that lubricating oil is present on the sliding surfaces of the mobile 60 is maintained, deterioration due to wear of the movable 60 and the like can be avoided, and stable operation can be obtained over a long period of time.
[0105] There is no particular upper limit for the difference (AB) between the surface tension (A) of each of the sliding surfaces of the mobile 60 and the surface tension (B) of the non-sliding surfaces of this. mobile 60.
[0106] The surface tension (B) of the non-slip surface of the mobile 60 is less than or equal to 20 mN / m, preferably less than or equal to 15 mN / m, and more preferably less than or equal to 11 mN / m. If the surface tension (B) of the non-slip surface of the mobile 60 is equal to or less than the upper limits specified above, when lubricating oil is applied to the sliding surfaces of the mobile 60, the oil lubrication is less prone to spreading by wetting. Therefore, since the lubricating oil is less likely to evaporate and the state in which lubricating oil is present on the sliding surfaces of the movable 60 is maintained, deterioration due to wear of the mobile 60 or the like can be avoided and stable operation can be obtained over a long period of time.
[0107] There is not particularly a lower limit for the surface tension (B) of the non-slip surface of the mobile 60. Preferably, a lower limit for the surface tension (B) of the non-slip surface. slip of the mobile 60 is 8 mN / m.
The surface tension (A) of each of the sliding surfaces of the mobile 60 is preferably greater than or equal to 21 mN / m, more preferably greater than or equal to 23 mN / m, and even more preferably greater or equal to 25 mN / m. If the surface tension (A) of each of the sliding surfaces of the mobile 60 is greater than or equal to the lower limits specified above, the affinity of the lubricating oil is improved. When lubricating oil is applied to the sliding surfaces of the mobile 60, a higher capacity to retain oil is exerted on the lubricating oil. Therefore, the lubricating oil is less prone to leaking out of the sliding surfaces of the mobile 60. Since the state where the lubricating oil is present on the sliding surfaces of the mobile 60 is maintained further, deterioration due to it. wear of the movable 60 and the like can be further avoided, and more stable operation can be obtained over a long period of time.
[0109] There is no particular upper limit for the surface tension (A) of each of the sliding surfaces of the mobile 60. An upper limit of the surface tension (A) of each of the sliding surfaces of the mobile 60 can be determined according to the type of lubricating oil. For example, 100 mN / m is preferable.
[0110] The surface tension (A) of each of the sliding surfaces of the mobile 60 and the surface tension (B) of the non-slip surface of the mobile 60 are calculated by means of the Zisman graph. More precisely, the calculation is carried out in a manner similar to that carried out in the case of the surface tension (A) of the sliding surface of the exhaust mobile and the surface tension (B) of the non-slip surface of this mobile exhaust.
The surface tension (A) of each of the sliding surfaces of the mobile 60 can have the same value at all points of each of the sliding surfaces or can have different values at different points of each of the sliding surfaces, from when the difference between the surface tension (A) of each of the sliding surfaces of the mobile 60 and the surface tension (B) of the non-slip surface of the mobile 60 is within the range mentioned above. The surface tension (B) of the non-slip surface of the mobile 60 can have the same value at all points of the non-slip surface or can have different values at different points of this non-slip surface, from when the difference is on the range mentioned above.
[0112] In order to ensure that the surface tension (A) of each of the sliding surfaces of the mobile 60, the surface tension (B) of the non-slip surface of the mobile 60 and the difference (AB) between the surface tension ( A) and the surface tension (B) are within the ranges mentioned above, an oil repellent film 62 can be formed, for example on the corresponding zone (surface to be treated) intended to serve as a non-slip surface. A specific method for this purpose is similar to that used in the case of the escape rover.
[0113] In addition, an oil retaining film 61 can be formed on an area (surface to be treated) intended to form each of the sliding surfaces, or the oil repellent film 62 can be formed on the area. (surface to be treated) for forming the non-slip surface and an oil retaining film 61 may be formed on the area (surface to be treated) for forming each of the sliding surfaces.
[0114] The constitution of the oil retaining film 61 and the like may be similar to that of the oil retaining film of the first embodiment.
[0115] The constitution of the oil repellent film 62 and the like may be similar to that of the oil repellant film of the first embodiment.
[0116] In the mobile 60 as a component of a timepiece in the present embodiment, the difference (AB) between the surface tension (A) of each of the sliding surfaces and the surface tension (B) of the non-slip surface is greater than or equal to 5 mN / m and the surface tension (B) of the non-slip surface is less than or equal to 20 mN / m. Therefore, when lubricating oil is applied to the sliding surfaces of the movable 60, a high oil retaining capacity to retain the lubricating oil is obtained, the lubricating oil is easily retained on the surfaces. sliding surfaces of the mobile 60 and in their vicinity, and the lubricating oil is less inclined to flow out of the sliding surfaces of the mobile 60. Further, when lubricating oil is applied to the sliding surfaces of the mobile 60. , the lubricating oil is less prone to wetting, and the lubricating oil is less likely to evaporate. Therefore, since the state where lubricating oil is present on the sliding surfaces of the movable 60 is maintained, deterioration due to wear of the movable 60 or the like can be avoided, and stable operation can be obtained on. a long period of time. Further, even if the mobile 60 experiences vibration, the lubricating oil is less likely to be dispersed from the sliding position.
In the mobile and the timepiece which include the timepiece component according to the first embodiment described above, the mobile 60 of the second embodiment can be used to be the movement barrel 222, center mobile 225, average mobile 226, and second mobile 227 shown in Figure 1.
Third embodiment
A timepiece component according to the third embodiment of the invention will now be described with reference to FIG. 5. FIG. 5 is a perspective view and a cross-sectional view which show a bearing. 75 which is the timepiece component according to the third embodiment of the invention.
[0119] As shown in Figure 5, the pad 75 has, for example, a circular shape in a plan view. The pad 75 includes a through hole 74. For example, the pad 75 is made of ruby or the like.
[0120] The through hole is formed by penetrating the pad 75 in the direction of thickness. For example, the through hole 74 is made at a center of the pad 75 in a plan view. The through hole 74 has, for example, a circular shape in plan view. For example, a pivot of a shaft is inserted into the through hole 74. Examples of shafts may include a constitution similar to that of the shaft 51 of the mobile 60 shown in FIG. 4.
[0121] An internal peripheral surface 74a of the through hole 74 of the pad 75 is a sliding surface of the pad 75.
[0122] In addition, a portion (a first surface 75a and a second surface 75b) of the pad 75 other than the sliding surface (the inner peripheral surface 74a of the through hole 74) is a non-slip surface of the pad 75.
[0123] The difference (AB) between the surface tension (A) of the inner peripheral surface 74a (sliding surface) of the through hole 74 of the pad 75 and the surface tension (B) of each of the first and second surfaces 75a and 75b (non-slip surface) of the bearing 75 is greater than or equal to 5 mN / m, preferably greater than or equal to 10 mN / m, more preferably greater than or equal to 13 mN / m, and even more preferably greater than or equal to 16 mN / m. If the difference between the surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface of the bearing 75 is greater than or equal to the lower limits specified above, when oil of lubrication is applied to the sliding surface of the bearing 75, a high capacity of retaining oil to retain the lubricating oil is obtained, and the lubricating oil is easily retained on the sliding surface of the bearing 75 and in its neighborhood. Therefore, the lubricating oil is less inclined to flow out of the sliding surface of the bearing 75. Since the state where lubricating oil is present on the sliding surface of the bearing 75 is maintained, deterioration due to the bearing. wear of the bearing 75 and the like can be avoided, and stable operation can be obtained over a long period of time.
[0124] There is no particularly upper limit for the difference (A-B) between the surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface of the bearing 75.
[0125] The surface tension (B) of the non-slip surface of the bearing 75 is less than or equal to 20 mN / m, preferably less than or equal to 15 mN / m, and more preferably less than or equal to 11 mN / m. If the surface tension (B) of the non-slip surface of the bearing 75 is less than or equal to the upper limits specified above, when lubricating oil is applied to the sliding surface of the bearing 75, the oil lubrication is less prone to spread by wetting. Therefore, since the lubricating oil is less likely to evaporate and the state in which lubricating oil is present on the sliding surface of the bearing 75 is maintained, deterioration due to wear of the pad 75 and the like can be avoided, and stable operation can be obtained over a long period of time.
[0126] There is no particularly lower limit for the surface tension (B) of the non-slip surface of the pad 75. A lower limit for the surface tension (B) of the non-slip surface of the pad 75 is preferably 8 mN / m.
[0127] The surface tension (A) of the sliding surface of the bearing 75 is preferably greater than or equal to 21 mN / m, more preferably greater than or equal to 23 mN / m, and even more preferably greater than or equal to 25 mN / m. If the surface tension (A) of the sliding surface of the bearing 75 is greater than or equal to the limits specified above, the affinity with the lubricating oil is improved. When lubricating oil is applied to the sliding surface of the bearing 75, a higher capacity to retain oil is exerted on the lubricating oil. Therefore, the lubricating oil is less inclined to flow out of the sliding surface of the bearing 75. Since the state where the lubricating oil is present on the sliding surface of the bearing 75 is maintained further, deterioration. due to wear of the bearing 75 and the like can be further avoided, and more stable operation can be obtained over a long period of time.
[0128] There is not particularly an upper limit for the surface tension (A) of the sliding surface of the pad 75. An upper limit for the surface tension (A) of the sliding surface of the pad 75 can be determined. depending on the type of lubricating oil. For example, 100 mN / m is preferable.
[0129] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface of the bearing 75 are calculated by means of the Zisman graph. More precisely, the calculation is carried out in a manner analogous to that carried out in the case of the surface tension (A) of the sliding surface and of the surface tension (B) of the non-slip surface of the exhaust mobile. .
[0130] The surface tension (A) of the sliding surface of the bearing 75 can have the same value at all points of the sliding surface or can have different values at different points of the sliding surface as soon as the difference between the surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface of the bearing 75 is within the range specified above. The surface tension (B) of the non-slip surface of the bearing 75 may have the same value at all points of the non-slip surface or may have different values at different points of the non-slip surface therefore. that the difference is over the range specified above.
[0131] In order to make the surface tension (A) of the sliding surface of the pad 75, the surface tension (B) of the non-slip surface of the pad 75 and the difference (AB) between the surface tension (A ) and the surface tension (B) are within the ranges specified above, oil repellant films 72 and 73 can be respectively formed, for example, on areas (surfaces to be treated) intended to form the non- surfaces. slip. A specific method for this purpose is similar to that used in the case of the escape rover.
[0132] In addition, an oil retaining film 71 can be formed on an area (surface to be treated) intended to form the sliding surface, or the oil repellent films 72 and 73 can be formed on areas (surface to be treated) intended to form the non-slip surface and the oil retaining film 71 may be formed on an area (surface to be treated) intended to form the sliding surface.
[0133] The constitution of the oil retaining film 71 and the like may be similar to that of the oil retaining film in the first embodiment.
[0134] The constitution of the oil repellent films 72 and 73 and the like may be similar to that of the oil repellant film of the first embodiment.
[0135] In the bearing 75 as a component of a timepiece of the present embodiment, since the difference (AB) between the surface tension (A) of the sliding surface and the surface tension (B) of the surface slip resistance is greater than or equal to 5 mN / m, and the surface tension (B) of the non-slip surface is less than or equal to 20 mN / m, when lubricating oil is applied to the surface sliding surface of the bearing 75, a high oil-retaining ability to retain the lubricating oil is obtained, the lubricating oil is easily retained on the sliding surface of the bearing 75 and in its vicinity, and the oil The lubricating oil is less prone to flow off the sliding surface of the bearing 75. Further, when lubricating oil is applied to the sliding surface of the bearing 75, the lubricating oil is less likely to spread. by wetting, and lubricating oil ication is less likely to evaporate. Therefore, since the state in which lubricating oil is present on the sliding surface of the bearing 75 is maintained, deterioration due to wear of the bearing 75 and the like can be avoided, and stable operation can be obtained. over a long period of time. Further, even when the bearing 75 is subjected to vibration, the lubricating oil is less likely to be dispersed from the sliding position.
Other embodiments
[0136] The components of a timepiece according to the invention are not limited to those described above and, for example, the date indicator 80 shown in FIG. 6 and the date jumper 90 shown in FIG. 7 can be components of a timepiece according to the invention.
[0137] On a date indicator tooth 81 of indicator 80 shown in Fig. 6, a gripping surface 81a with which a gripping claw engages is a sliding surface and a surface (surface not to be engaging 81b) other than engaging surface 81a is a non-slip surface.
[0138] The date jumper 90 shown in FIG. 7 is a component designed to adjust the position of the date indicator according to the direction of rotation and comprises an elastically deformable date jumper spring portion 92, one end of which 91 is a free end. A gripping claw 73, which can engage with the date indicator tooth of the date indicator, is formed at the end 91 of the date jumper spring portion 92. On such a date jumper 90, a surface of the engagement claw 93 is a sliding surface and a surface (non-engaging claw portion 94) other than the surface of the engagement claw 93 is a non-slip surface. The difference (AB) between the surface tension (A) of the engagement surface 81a (sliding surface) and the surface tension (B) of the non-engaging surface 81b (non-slip surface) of the indicator of date 81 is greater than or equal to 5 mN / m, preferably greater than or equal to 10 mN / m, more preferably greater than or equal to 13 mN / m, and even more preferably greater than or equal to 16 mN / mr.
[0139] The difference (AB) between the surface tension (A) of the gripping claw 93 and the surface tension (B) of the surface (non-slip surface) of the claw portion not to be engaged 94 of the date jumper 90 is greater than or equal to 5 mN / m, preferably greater than or equal to 10 mN / m, more preferably greater than or equal to 13 mN / m, and even more preferably greater than or equal to 16 mN / m.
[0140] There is no particular upper limit for the differences (A-B) between the surface tensions (A) of these sliding surfaces and the surface tensions (B) of these non-slip surfaces.
[0141] The surface tension (B) of the non-engaging surface 81b (non-slip surface) of the date indicator 80 and the surface tension (B) of the surface (non-slip surface) of the non-engaging claw portion 94 of the date jumper 90 are each less than or equal to 20 mN / m, preferably less than or equal to 15 mN / m, and more preferably less than or equal to 11 mN / m .
[0142] There is no particular lower limit for the surface tensions (B) of these non-slip surfaces. The lower limits for the surface tensions (B) of these non-slip surfaces are preferably 8 mN / m.
[0143] The surface tension (A) of the gripping surface 81a (sliding surface) of the date indicator 80 and the surface tension (A) of the surface (sliding surface) of the gripping claw 93 of the jumper of date 90 are each preferably greater than or equal to 21 mN / m, more preferably greater than or equal to 23 mN / m, and even more preferably greater than or equal to 25 mN / m.
[0144] There is no particular upper limit for the surface tensions (A) of these sliding surfaces. Upper limits for the surface tensions (A) of these sliding surfaces can be determined depending on the type of lubricating oil. For example, 100 mN / m is preferable.
[0145] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface of the date indicator 80, as well as the surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface of the date jumper 90 are calculated using the Zisman graph. More precisely, the calculation is carried out in a manner similar to that employed in the case of the surface tensions (A) and (B) of the sliding surface and of the non-sliding surface of the exhaust mobile.
[0146] The surface tension (A) of the sliding surface of each of the two components that are the date indicator 80 and the date jumper 90 can have the same value at all points of the sliding surface or can have different values at different points of the sliding surface, as long as the difference between the surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface is within the range mentioned above . The surface tension (B) of the non-slip surface of each of the components that are the date indicator 80 and the date jumper 90 may have the same value at all points of the non-slip surface or may have different values at different points of this non-slip surface as soon as the difference is over the range specified above.
[0147] In order to ensure that the surface tension (A) of the sliding surface of each of the components that are the date indicator 80 and the date jumper 90, the surface tension (B) of the non-slip surface of each of the components that are the date indicator 80 and the date jumper 90 and the difference (AB) between the surface tension (A) and the surface tension (B) are on the ranges specified above, a repellent film for the oil can be formed, for example, on an area (surface to be treated) intended to form the corresponding non-slip surface. A specific method for this purpose and similar to that used in the case of the escape rover.
[0148] In addition, an oil retaining film can be formed on an area (surface to be treated) intended to form the sliding surface, or the oil repellent film can be formed on the area (surface to be treated). process) intended to form the non-slip surface and the oil retaining film may be formed on an area (surface to be treated) intended to form the slip surface.
[0149] The constitution of the oil retaining film and the like may be similar to that of the oil retaining film employed in the first embodiment.
[0150] The constitution of the oil repellent film and the like can be similar to that of the oil repellent film employed in the first embodiment.
Examples
In what follows, the invention will be described in detail with reference to examples, but the invention is not limited thereto.
Support plate
[0152] As a support plate, nickel-plated carbon steel shaped into a plate (3cm long, 3 cm wide) or aluminum oxide shaped into a plate (3 cm long, 3 cm wide) ) was used.
[0153] Further, as shown in Fig. 8, in a surface of the support plate 300, a central area (region 1 cm long and 1 cm wide) was chosen as a central area 301 and a central area. zone other than this central zone 301 was chosen as being a peripheral zone 302.
Method used to form the oil repellent film
Oil repellent film formation (I)
[0154] A fluorine-based treating agent ("HFD-1098" (trade name) produced by Harves Co., Ltd.) was coated on a predetermined area of the base plate so that a thickness after drying was about 30 nm, and the coated fluorine-based treatment agent was dried at 100 ° C for 30 minutes, whereby an oil repellent film (I) was formed on a predetermined area of the plate support.
Film formation for oil (II)
[0155] A fluorine based treatment agent (with the trade name "SFE-MS01" produced by AGC Seimi Chemical Co., dilute SFE Solvent 600 solution incorporated) was coated on a predetermined area of the backing plate. so that the thickness after drying was about 150 nm and the coated fluorine-based treatment agent was dried at 100 ° C for 30 minutes, whereby an oil repellent film (II) was formed on the predetermined area of the backing plate.
Film formation for oil (III)
[0156] After being coated with a mask, a surface of the backing plate other than the predetermined area was immersed in a fluorine-based treatment agent ("Fixodrop ES / BS-10" (trade name) produced by Moebius Company). Then, the base plate was removed from the fluorine-based treating agent and the mask was removed, whereby an oil repellent film (III) having a thickness of about 10 nm was formed on the predetermined area. of the backing plate.
Formation of an oil repellent film (IV)
[0157] A fluorine-based treatment agent (polytetrafluoroethylene) was vapor deposited on a predetermined area of the backing plate, whereby an oil repellent film (IV) having a thickness of about 200 nm was. formed on the predetermined area of the backing plate.
Method for forming the oil retaining film
Oil retaining film formation (V)
[0158] Triethoxy-n-octysilane (compound represented by the general formula (4) specified above), water and acetic acid were mixed in a molar ratio such as triethoxy-n-octysilane: water: acetic acid = 10: 15: 1, and the mixture was stirred at 80 ° C for 8 hours, whereby an oil retaining treatment agent was prepared.
[0159] The oil retaining treatment agent was coated on a predetermined area of the support plate so that the thickness after drying was about 300 nm and the retaining treatment agent was approximately 300 nm. The coated oil was dried at 150 ° C for 1 hour, whereby the oil retaining film (V) was formed on the predetermined area of the backing plate.
Formation of the oil retaining film (VI)
[0160] Butyltrimethoxysilane (compound according to general formula (3) specified above, in which M <1> is silicon, R is a butyl group, and Y <1> and Y <2> are a methoxy group), water and acetic acid were mixed in a molar ratio such as butyltrimethoxysilane: water: acetic acid = 10: 15: 1, and the mixture was stirred at 80 ° C for one hour, whereby a treating agent oil containment was prepared.
[0161] The oil retaining treatment agent was coated on a predetermined area of the support plate so that the thickness after drying was about 300 nm and the retaining treatment agent was approximately 300 nm. The coated oil was dried at 150 ° C for 1 hour, whereby the oil retaining film (VI) was formed on the predetermined area of the backing plate.
Example 1-1
[0162] Nickel-plated carbon steel was used as the backing plate. The oil repellent film (I) was formed on the peripheral area 302 of the support plate 300 to provide a test piece. The area of the central area 301 of the backing plate 300 was chosen as the sliding surface, while the area of the oil repellent wire (I) was chosen as the non-slip surface. In other words, the sliding surface was the (Ni-plated) surface of nickel-plated carbon steel.
[0163] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured as follows. The results are shown in Table 1.
[0164] Further, the obtained test piece was evaluated as follows. The results are shown in Table 1
Method for measuring surface tension
[0165] The surface tension (A) of the sliding surface was calculated using the Zisman graph.
[0166] First, several test solutions having different surface tensions were dropped on the sliding surface so as to form drops, the contact angle (θ) between each of the drops and the sliding surface was measured and the cosθ corresponding was calculated. Then, the surface tensions of the test solutions were placed on the abscissa and the values of the cosθ were placed on the ordinate (graphical representation of the cosθ as a function of the surface tension) so as to produce the Zisman graph. The value of the surface tension when cosθ = 1 on a primary straight line of approximation was calculated. Similar operations were performed in 5 different positions on the sliding surface in order to perform several Zisman graphs, the values of the surface tension when cosθ = 1 on the respective straight lines of approximation were calculated and their average was chosen as being the surface tension (A) of the sliding surface. The formation of the drops and the measurement of the contact angles were carried out at 25 ° C.
[0167] As the test solution, penthane, heptadecane, iodocyclohexane, ethylene glycol, formamide, diiodomethane, glycerin and distilled water were used.
[0168] The surface tension (B) of the non-slip surface was also measured in a manner similar to that employed for the surface tension (A) of the sliding surface, except that the measurement location was changed from the slip surface to the non-slip surface.
Assessment method
[0169] As shown in Fig. 9 (a), a slip surface 304 and a non-slip surface 305 of a test piece 303 were in a horizontal state and lubricating oil 306 („SYNT- A-LUBE “(trade name) produced by Moebius Company, having a surface tension of 32.7 mN / m at 25 ° C) was poured onto the center of the sliding surface 304. Then, the lubricating oil 306 on the surface Slip 304 was slid (spread) back and forth in a lateral direction over a distance of 3 cm using a rod having a width of 0.8 mm. The condition of the lubricating oil 306 after being slid (spread) with a reciprocating motion performed 100 times was visually checked and evaluated based on the following evaluation criteria. O: As shown in figure 9 (b), the lubricating oil 306 remains only on the sliding surface 304. Δ: as shown in figure 9 (c), the lubricating oil 306 is on the area slip (spreading zone). x1: As shown in figure 9 (d), the lubricating oil 306 is only on the non-slip surface 305. x2: as shown in figure 9 (e), the lubricating oil 306 is found over the entire surface of the test piece 303. x3: As shown in Fig. 9 (f), the lubricating oil 306 was displaced only at both ends of the slip zone (spread zone). x4: As shown in figure 9 (g), although it is on the sliding zone (spreading zone), the lubricating oil 306 does not remain on the sliding surface 304.
Examples 1-2 to 1-4
[0170] Nickel-plated carbon steel was used as the backing plate.
[0171] An oil repellent film of the type shown in Table 1 was formed on the peripheral area 302 of the backing plate 300 to obtain a test piece. The area of the central area 301 of the backing plate 300 was chosen as the sliding surface, while the area of the oil repellent film was chosen as the non-slip surface. In other words, the sliding surface was a surface of nickel-plated carbon steel.
[0172] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 1.
Comparative Example 1-1
[0173] Nickel-plated carbon steel was used as the backing plate and was chosen as the test piece. The area of the central area 301 of the support plate 300 was chosen as the sliding surface, while the area of the peripheral area 302 was chosen as the non-slip surface. In other words, the sliding surface and the non-sliding surface were surfaces of the nickel-plated carbon steel.
[0174] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 1.
Comparative Examples 1-2 and 1-3
[0175] Nickel-plated carbon steel was used as the backing plate.
[0176] An oil retaining film of a type shown in Table 1 was formed on the peripheral area 302 of the backing plate 300 to obtain a test piece. The area of the central area 301 of the support plate 300 was chosen as the sliding surface, while the surface of the oil retaining film was chosen as the non-slip surface. In other words, the sliding surface was a surface of nickel-plated carbon steel.
[0177] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 1.
Examples 2-1 to 2-4
[0178] Aluminum oxide was used as a backing plate.
[0179] An oil repellent film of a type shown in Table 2 was formed on the peripheral area 302 of the backing plate 300 to obtain a test piece. The area of the central area 301 of the backing plate 300 was chosen as the sliding surface, while the area of the oil repellent film was chosen as the non-slip surface. In other words, the sliding surface was an aluminum oxide (aluminum) surface.
[0180] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 2.
Comparative Example 2-1
[0181] Aluminum oxide was used as the backing plate and this aluminum oxide was chosen as the test piece. The area of the central area 301 of the support plate 300 was chosen as the sliding surface, while the area of the peripheral area 302 was chosen as the non-slip surface. In other words, the sliding surface and the non-sliding surface were aluminum oxide surfaces.
[0182] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 2.
Comparative Examples 2-2 and 2-3
[0183] Aluminum oxide was used as the backing plate.
[0184] An oil retaining film of a type shown in Table 2 was formed on the peripheral area 302 of the support plate 300 to obtain the test piece. The area of the central area 301 of the backing plate 300 was chosen as the sliding surface, while the area of the oil retaining film was chosen as the non-slip surface. In other words, the sliding surface was an aluminum oxide surface.
[0185] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 2.
Examples 3-1 to 3-4
[0186] Nickel-plated carbon steel was used as the backing plate.
[0187] After an oil repellent film of a type shown in Table 3 was formed on the peripheral area 302 of the support plate 300, the oil retaining film (V) was formed in the central zone 301 in order to obtain the test piece. The surface of the oil retaining film (V) was the sliding surface, while the surface of the oil repellent film was the non-slip surface.
[0188] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. In addition, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 3.
Comparative Example 3-1
[0189] Nickel-plated carbon steel was used as the backing plate.
[0190] The oil retaining film (V) was formed on the central area 301 of the support plate 300 in order to obtain the test piece. The area of the oil retaining film (V) was chosen as the sliding surface, while the area of the peripheral area 302 of the backing plate 300 was chosen as the non-slip surface. In other words, the non-slip surface was a nickel-plated carbon steel surface.
[0191] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 3.
Comparative Example 3-2
[0192] Aluminum oxide was used as a backing plate.
[0193] The oil repellent film (V) was formed on the central area 301 of the support plate 300 to obtain the test piece. The area of the oil retaining film (V) was chosen as the sliding surface, while the area of the peripheral area 302 of the backing plate 300 was chosen as the non-slip surface. In other words, the non-slip surface was an aluminum oxide surface.
[0194] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 3.
Comparative Example 3-3
[0195] Nickel-plated carbon steel was used as the backing plate.
[0196] The oil retaining film (V) was formed over the entire surface of the backing plate 300 to obtain the test piece. The area of the oil retaining film (V) on the central area 301 of the support plate 300 was chosen as the sliding surface, while the area of the oil retaining film (V) on the peripheral area 302 was chosen as the non-slip surface.
[0197] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 3.
Comparative Example 3-4
[0198] Nickel-plated carbon steel was used as the backing plate.
[0199] After the oil retaining film (VI) was formed on the peripheral area 302 of the support plate 300, the oil retaining film (V) was formed on the central area 301 in order to get the test piece. The area of the oil retaining film (V) was chosen as the sliding surface, while the area of the oil retaining film (VI) was chosen as the non-slip surface.
[0200] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed 1-1. These results are shown in Table 3.
Examples 4-1 to 4-4
[0201] Nickel-plated carbon steel was used as the backing plate.
[0202] After an oil repellent film of a type shown in Table 4 was formed on the peripheral area 302 of the support plate 300, the oil retaining film (VI) was formed on the central zone 301 in order to obtain the test piece. The surface of the oil retaining film (VI) was chosen as the sliding surface, while the surface of the oil repellent film was chosen as the non-slip surface.
[0203] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 4.
Comparative Example 4-1
[0204] Nickel-plated carbon steel was used as the backing plate.
[0205] The oil retaining film (VI) was formed on the central area 301 of the support plate 300 to obtain the test piece. The area of the oil retaining film (VI) was chosen as the sliding surface, while the area of the peripheral area 302 of the backing plate 300 was chosen as the non-slip surface. In other words, the non-slip surface was a nickel-plated carbon steel surface. The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 4.
Comparative Example 4-2
[0206] Aluminum oxide was used as a backing plate.
[0207] The oil retaining film (VI) was formed on the central area 301 of the support plate 300 to obtain the test piece. The area of the oil retaining film (VI) was chosen as the sliding surface, while the area of the peripheral area 302 of the backing plate 300 was chosen as the non-slip surface. In other words, the non-slip surface was an aluminum oxide surface.
[0208] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 4.
Comparative Example 4-3
[0209] Nickel-plated carbon steel was used as the backing plate.
[0210] After the oil retaining film (V) was formed on the peripheral area 302 of the support plate 300, the oil retaining film (VI) was formed on the central area 301 in order to get the test piece. The area of the oil retaining film (VI) was chosen as the sliding surface, while the area of the oil retaining film (V) was chosen as the non-slip surface.
[0211] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 4.
Comparative Example 4-4
[0212] Nickel-plated carbon steel was used as the backing plate.
[0213] The oil retaining film (VI) was formed over the entire surface of the backing plate 300 to obtain the test piece. The area of the oil retaining film (VI) on the central area 301 of the backing plate 300 was chosen as the sliding surface, while the area of the oil retaining film (VI) on the peripheral area 302 was chosen as the non-slip surface.
[0214] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 4.
Comparative Example 5-1
[0215] Nickel-plated carbon steel was used as the backing plate.
[0216] The oil retaining film (I) was formed over the entire surface of the support plate 300 to obtain the test piece. The area of the oil retaining film (I) on the central area 301 of the support plate 300 was chosen as the sliding surface, while the area of the oil retaining film (I) on the peripheral area 302 was chosen as the non-slip surface.
[0217] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 5.
Comparative Example 5-2 to 5-4
[0218] Nickel-plated carbon steel was used as the backing plate.
[0219] After an oil repellent film of a type shown in Table 5 was formed on the peripheral area 302 of the backing plate 300, the oil repellent film (I) was formed on the central zone 301 in order to obtain the test piece. The area of the oil repellent film (I) on the central area 301 of the backing plate 300 was chosen as the sliding surface, while the area of the oil repellent film on the peripheral area 302 was chosen. as the non-slip surface.
[0220] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 5.
Comparative Example 5-5
[0221] Nickel-plated carbon steel was used as the backing plate.
[0222] The oil repellent film (I) was formed on the central area 301 of the support plate 300 to obtain the test piece. The oil repellent film surface (I) was chosen as the sliding surface, while the surface of the peripheral area 302 of the backing plate 300 was chosen as the non-slip surface. In other words, the non-slip surface was a nickel-plated carbon steel surface.
[0223] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 5.
Comparative Example 5-6
[0224] Aluminum oxide was used as the backing plate.
[0225] The oil repellent film (I) was formed on the central area 301 of the support plate 300 to obtain the test piece. The surface of the oil repellent film (I) was chosen as the sliding surface, while the surface of the peripheral area 302 of the backing plate 300 was chosen as the non-slip surface. In other words, the non-slip surface was an aluminum oxide surface.
[0226] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 5.
Comparative Examples 5-7 and 5-8
[0227] Nickel-plated carbon steel was used as the backing plate.
[0228] After an oil retaining film of the type shown in Table 5 was formed on the peripheral area 302 of the support plate 300, the oil repellent film (I) was formed on the area. control unit 301 in order to obtain the test piece. The surface of the oil repellent film (I) was chosen as the sliding surface, while the surface of the oil retaining film was chosen as the non-slip surface.
[0229] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 5.
Comparative Examples 6-1, 6-3 and 6-4
[0230] Nickel-plated carbon steel was used as the backing plate.
[0231] After an oil repellent film of a type shown in Table 6 was formed on the peripheral area 302 of the backing plate 300, the oil repellent film (II) was formed on the central zone 301 in order to obtain the test piece. The area of the oil repellent film (II) on the central area 301 of the backing plate 300 was chosen as the sliding surface, while the area of the oil repellent film on the peripheral area 302 was chosen. as the non-slip surface.
[0232] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 6.
Comparative Example 6-2
[0233] Nickel-plated carbon steel was used as the backing plate.
[0234] The oil repellent film (II) was formed over the entire surface of the backing plate to obtain the test piece. The area of the oil repellent film (II) on the central area 301 of the support plate 300 was chosen as the sliding surface, while the area of the oil repellent film (II) on the peripheral area 302 was chosen as the non-slip surface.
[0235] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 6.
Comparative Example 6-5
[0236] Nickel-plated carbon steel was used as the backing plate.
[0237] The oil repellent film (II) was formed on the central area 301 of the support plate 300 to obtain the test piece. The surface of the oil repellent film (II) was chosen as the sliding surface, while the surface of the peripheral area 302 of the support plate 300 was chosen as the non-slip surface. In other words, the non-slip surface was a nickel-plated carbon steel surface.
[0238] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 6.
Comparative Example 6-6
[0239] Aluminum oxide was used as the backing plate.
[0240] The oil repellent film (II) was formed on the central area 301 of the support plate 300 to obtain the test piece. The surface of the oil repellent film (II) was chosen as the sliding surface, while the surface of the peripheral area 302 of the support plate 300 was chosen as the non-slip surface. In other words, the non-slip surface was an aluminum oxide surface.
[0241] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 6.
Comparative Examples 6-7 and 6-8
[0242] Nickel-plated carbon steel was used as the backing plate.
[0243] After an oil retaining film of a type shown in Table 6 was formed on the peripheral area of the backing plate 300, the oil repellent film (II) was formed on the central zone 301 in order to obtain the test piece. The surface of the oil repellent film (II) was chosen as the sliding surface, while the surface of the oil retaining film was chosen as the non-slip surface.
[0244] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 6.
Comparative Examples 7-1, 7-2 and 7-4
[0245] Nickel-plated carbon steel was used as the backing plate.
[0246] After the oil repellent film (III) was formed on the central area 301 of the backing plate 300, an oil repellent film of a type shown in Table 7 was formed on the base. peripheral zone 302 in order to obtain the test piece. The area of the oil repellent film (III) on the central area 301 of the backing plate 300 was chosen as the sliding surface, while the area of the oil repellent film on the peripheral area 302 was chosen. as the non-slip surface.
[0247] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 7.
Comparative Example 7-3
[0248] Nickel-plated carbon steel was used as the backing plate.
[0249] The oil repellent film (III) was formed over the entire surface of the backing plate 300 to obtain the test piece. The area of the oil repellent film (III) on the central area 301 of the support plate 300 was chosen as the sliding surface, while the area of the oil repellent film (III) on the peripheral area was chosen as the non-slip surface.
[0250] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 7.
Comparative Example 7-5
[0251] Nickel-plated carbon steel was used as the backing plate.
[0252] The oil repellent film (III) was formed on the central area 301 of the support plate 300 to obtain the test piece. The surface of the oil repellent film (III) was chosen as the sliding surface, while the peripheral area 302 of the backing plate 300 was chosen as the non-slip surface. In other words, the non-slip surface was a nickel-plated carbon steel surface.
[0253] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 7.
Comparative Example 7-6
[0254] Aluminum oxide was used as the backing plate.
[0255] The oil repellent film (III) was formed on the central area 301 of the support plate 300 to obtain the test piece. The surface of the oil repellent film (III) was chosen as the sliding surface, while the surface of the peripheral zone 302 of the backing plate 300 was chosen as the non-slip surface. In other words, the non-slip surface was an aluminum oxide surface.
[0256] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 7.
Comparative Example 7-7 and 7-8
[0257] Nickel-plated carbon steel was used as the backing plate.
[0258] After the oil repellent film (III) was formed on the central area 301 of the backing plate 300, an oil retaining film of a type shown in Table 7 was formed on the base. peripheral zone 302 in order to obtain the test piece. The surface of the oil repellent film (III) was chosen as the sliding surface, while the surface of the oil retaining film was chosen as the non-slip surface.
[0259] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 7.
Comparative Examples 8-1 to 8-3
[0260] Nickel-plated carbon steel was used as the backing plate.
[0261] After an oil repellent film of a type shown in Table 8 was formed on the peripheral area 302 of the backing plate 300, the oil repellent film (IV) was formed on the central zone 301 in order to obtain the test piece. The area of the oil repellent film (IV) on the central area 301 of the support plate 300 was chosen as the sliding surface, while the area of the oil repellent film on the peripheral area 302 was chosen as the sliding surface. the non-slip surface.
[0262] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 8.
Comparative Example 8-4
[0263] Nickel-plated carbon steel was used as the backing plate.
[0264] The oil repellent film (IV) was formed over the entire surface of the backing plate 300 to obtain the test piece. The area of the oil repellent film (IV) on the central area 301 of the support plate 300 was chosen as the sliding surface, while the area of the oil repellent film (IV) on the peripheral area 302 was chosen as the non-slip surface.
[0265] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 8.
Comparative Example 8-5
[0266] Nickel-plated carbon steel was used as the backing plate.
[0267] The oil repellent film (IV) was formed on the central area 301 of the backing plate 300 to obtain the test piece. The surface of the oil repellent film (IV) was chosen as the sliding surface, while the surface of the peripheral area 302 of the support plate 300 was chosen as the non-slip surface. In other words, the non-slip surface was a nickel-plated carbon steel surface.
[0268] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 8.
Comparative Example 8-6
[0269] Aluminum oxide was used as a backing plate.
[0270] The oil repellent film (IV) was formed on the central area 301 of the support plate 300 to obtain the test piece. The surface of the oil repellent film (IV) was chosen as the sliding surface, while the surface of the peripheral area 302 of the support plate 300 was chosen as the non-slip surface. In other words, the non-slip surface was an aluminum oxide surface.
[0271] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 8.
Comparative Examples 8-7 and 8-8
[0272] Nickel-plated carbon steel was used as the backing plate.
[0273] After an oil retaining film of a type shown in Table 8 was formed on the peripheral area 302 of the support plate 300, the oil repellent film (IV) was formed on the central zone 301 in order to obtain the test piece. The surface of the oil repellent film (IV) was chosen as the sliding surface, while the surface of the oil retaining film was chosen as the non-slip surface.
[0274] The surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface were measured in a manner similar to that employed in Example 1-1. Further, the obtained test piece was evaluated in a manner similar to that employed in Example 1-1. These results are shown in Table 8.
Table 1
[0275] Central zone of the support plate Plated Ni Plated Ni Plated Ni Plated Ni Plated Ni Plated Ni Plated Ni Surface tension (A) of the sliding surface [mN / m] 40 40 40 40 40 40 40 Peripheral zone of the backing plate oil repellent film (I) oil repellent film (II) oil repellent film (III) oil repellent film (IV) Ni plated oil retaining film (V) oil retaining film (VI) Surface tension (B) of the non-slip surface [mN / m] 10.8 10.4 8.3 8 40 25.5 24.1 Difference (AB) between surface tensions [mN / m] 29.2 29.6 31.7 32.0 0.0 14.5 15.9 Evaluation oooo × 2 Δ Δ
Table 2
[0276] Central area of the support plate Alumina Alumina Alumina Alumina Alumina Alumina Alumina Surface tension (A) of the sliding surface [mN / m] 28.7 28.7 28.7 28.7 28.7 28.7 28.7 28.7 Peripheral area of the support plate Repellent film for Oil (I) Oil repellent film (II) Oil repellent film (III) Oil repellent film (IV) Alumina Oil retaining film (V) Oil retaining film (VI) ) Surface tension (B) of the non-slip surface [mN / m] 10.8 10.4 8.3 8 28.7 25.5 24.1 Difference (AB) between surface tensions [mN / m] 17.9 18.3 20.4 20.7 0.0 3.2 4.6 Evaluation oooo × 2 Δ Δ
Table 3
[0277] Center area of the backing plate Oil retaining film (V) Oil retaining film (V) Oil retaining film (V) Oil retaining film (V) Retaining film d Oil (V) Oil retaining film (V) Oil retaining film (V) Oil retaining film (V) Surface tension (A) of the sliding surface [mN / m] 25.5 25.5 25.5 25.5 25.5 25.5 25.5 25.5 Peripheral area of the backing plate Oil repellent film (I) Oil repellent film (II) Oil repellent film (III) Oil repellent film (IV) Ni plated Alumina Oil retaining film (V) Oil retaining film (VI) Surface tension (B) of the non-slip surface [mN / m] 10.8 10.4 8.3 8 40 28.7 25.5 24.1 Difference (AB) between surface tensions [mN / m] 14.7 15.1 17.2 17.5 -14.5 -3.2 0.0 1.4 Evaluation oooo × 4 × 4 Δ Δ
Table 4
[0278] Center area of the backing plate Oil retaining film (VI) Oil retaining film (VI) Oil retaining film (VI) Oil retaining film (VI) Oil retaining film Oil (VI) Oil retaining film (VI) Oil retaining film (VI) Oil retaining film (VI) Surface tension (A) of the sliding surface [mN / m] 24.1 24.1 24.1 24.1 24.1 24.1 24.1 24.1 Peripheral area of the backing plate Oil repellent film (I) Oil repellent film (II) Oil repellent film (III) Oil repellent film (IV) Ni plated Alumina Oil retaining film (V) Oil retaining film (VI) Surface tension (B) of the non-slip surface [mN / m] 10.8 10.4 8.3 8 40 28.7 25.5 24.1 Difference (AB) between surface tensions [mN / m] 13.3 13.7 15.8 16.1 -15.9 -4.6 -1.4 0.0 Evaluation oooo × 4 × 4 Δ Δ
Table 5
[0279] Central area of the backing plate Oil repellent film (I) Oil repellent film (I) Oil repellent film (I) Oil repellent film (I) Oil repellent film Oil (I) Oil repellent film (I) Oil repellent film (I) Oil repellent film (I) Surface tension (A) of the sliding surface [mN / m] 10.8 10.8 10.8 10.8 10.8 10.8 10.8 10.8 Peripheral area of the backing plate Oil repellent film (I) Oil repellent film (II) Oil repellent film (III) Oil repellent film (IV) Ni plated Alumina Oil retaining film (V) Oil retaining film (VI) Surface tension (B) of the non-slip surface [mN / m] 10.8 10.4 8.3 8 40 28.7 25.5 24.1 Difference (AB) between surface tensions. [mN / m] 0.0 0.4 2.5 2.8 -29.2 -17.9 -14.7 -13.3 Evaluation x3 x3 x3 x3 x1 x1 x4 x4
Table 6
[0280] Central area of the backing plate Oil repellent film (II) Oil repellent film (II) Oil repellent film (II) Oil repellent film (II) Oil repellent film Oil (II) Oil repellent film (II) Oil repellent film (II) Oil repellent film (II) Surface tension (A) of the sliding surface [mN / m] 10.4 10.4 10.4 10.4 10.4 10.4 10.4 10.4 Peripheral area of the backing plate Oil repellent film (I) Oil repellent film (II) Oil repellent film (III) Oil repellent film (IV) Ni plated Alumina Oil retaining film (V) Oil retaining film (VI) Surface tension (B) of nonsliding surface [mN / m] 10.8 10.4 8.3 8 40 28.7 25.5 24.1 Difference (AB) between surface tensions. [mN / m] -0.4 0.0 2.1 2.4 -29.6 -18.3 -15.1 -13.7 Evaluation x3 x3 x3 x3 x1 x1 x4 x4
Table 7
[0281] Central area of the backing plate Oil repellent film (III) Oil repellent film (III) Oil repellent film (III) Oil repellent film (III) Oil repellent film Oil (III) Oil repellent film (III) Oil repellent film (III) Oil repellent film (III) Surface tension (A) of the sliding surface [mN / m] 8.3 8.3 8.3 8.3 8.3 8.3 8.3 8.3 Peripheral area of the backing plate Oil repellent film (I) Oil repellent film (II) Oil repellent film (III) Oil repellent film (IV) Ni plated Alumina Oil retaining film (V) Oil retaining film (VI) Surface tension (B) of nonsliding surface [mN / m] 10.8 10.4 8.3 8 40 28.7 25.5 24.1 Difference (AB) between surface tensions. [mN / m] -2.5 -2.1 0.0 0.3 -31.7 -20.4 -17.2 -15.8 Rating × 3 × 3 × 3 × 3 × 1 × 1 × 4 × 4
Table 8
[0282] Central area of the backing plate Oil repellent film (IV) Oil repellent film (IV) Oil repellent film (IV) Oil repellent film (IV) Oil repellent film oil (IV) Oil repellent film (IV) Oil repellent film (IV) Oil repellent film (IV) Surface tension (A) of the sliding surface [mN / m] 8 8 8 8 8 8 8 8 Peripheral area of the backing plate Oil repellent film (I) Oil repellent film (II) Oil repellent film (III) Oil repellent film (IV) Ni plated Alumina Oil retaining film (V) Oil retaining film (VI) Surface tension (B) of non-sliding surface [mN / m] 10.8 10.4 8.3 8 40 28.7 25.5 24.1 Difference (AB) between surface tensions . [mN / m] -2.8 -2.4 -0.3 0.0 -32.0 -20.7 -17.5 -16.1 Evaluation x3 x3 x3 x3 x1 x1 x4 x4
[0283] As is clear from Tables 1 to 8, in each of the examples, even when the lubricant was slipped (spread), the lubricating oil remained only on the sliding surface and the ability to retain the lubricating oil. was excellent.
[0284] On the contrary, in each of the comparative examples, after being slid (spread), the lubricant was prone to spill or be displaced only at both ends of the slip zone (spread zone) and the capacity of retaining the lubricating oil was bad.

权利要求:
Claims (4)
[1]
1. Timepiece component, comprising:a sliding surface, anda non-slip surface,wherein the difference (A-B) between the surface tension (A) of the sliding surface and the surface tension (B) of the non-slip surface is greater than or equal to 5 mN / m, andthe surface tension (B) of the non-slip surface is less than or equal to 20 mN / m.
[2]
2. Timepiece component according to claim 1, whereinthe surface tension (A) of the sliding surface is greater than or equal to 21 mN / m.
[3]
3. Movement, comprising:a timepiece component according to claim 1 or 2.
[4]
4. Timepiece, comprising:a movement according to claim 3.

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同族专利:

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公开号 | 公开日

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JP2020159779A|2020-10-01|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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JP2019057565A|JP2020159779A|2019-03-26|2019-03-26|Component for timepiece, movement, and timepiece|

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