• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    There is a device in a pusher comprising an expandable member, a support member and an input shaft. A portable timepiece (11) includes a housing (12), a watertight expandable member (32), a support member (41) attached to the housing (12), and an attractive shaft (51). The housing (12) includes a bearing surface (29) and a hole (30).The expandable member (32) includes a cylindrical member that can be extended or retracted in an axial direction, having a closed end and the other end open, and inserting into the hole (30), and a flange (35) extending the outer periphery on the bearing surface (29).The support member (41) includes a pressure member (42) sandwiching the rim (35) with the bearing surface (29) to provide sealing around the rim, and a through hole at the opening of the cylindrical element. The main shaft (51) includes a shaft end (52) protruding outwardly from the support member (41) through the through hole.The housing (12) is to be used as a building block.
    公开号:CH707634B1
    申请号:CH00196/14
    申请日:2014-02-17
    公开日:2019-10-15
    发明作者:Ishida Masahiro；Hayashi Masataka
    申请人:Seiko Instr Inc；
    IPC主号:
    专利说明:

    Description
    Background of the invention
    1. Field of the invention The present invention relates to a waterproof device and to a portable timepiece with improved sealing of the pusher actuating element.
    2. Description of the Prior Art [0002] In portable devices, including portable timepieces such as a wristwatch, a pocket watch, a chronograph, a mobile phone or a terminal device. portable information, there are devices, for example, which include an actuator such as a pusher attached to the device's external housing to operate contacts in the device's external housing. In such a device, predetermined functions are executed when the pusher is pushed a predetermined number of times. For example, in the portable timepiece, a display window can be illuminated, the timepiece display can be changed from an analog display to a digital display or vice versa and in addition, the date or day of the week that is displayed digitally can be changed.
    As in such a portable device, a part of the pusher shaft passes through the external device housing from the inside to the outside, it is necessary to seal the region in which the pusher is formed (element d push button).
    In order to achieve the above, a structure with the seal between the pusher shaft and the external device housing has been provided by adding a seal material which has a ring shape and which can be elastically deformed at the outer periphery of the pusher shaft piercing a tube attached to the outer device housing and allowing the seal material to come into close contact with an inner surface of the tube when the seal material is compressed in a radial direction ( refer to JP-A-2004-319 446 [atent document 1]).
    A method has also been provided for attaching a sealed switching element to press a switch inside a device housing towards the housing as well as for combining a pusher with the sealed switching element to make the sealing in this way (for example, refer to JP-A-2011-258 334 [atent document 2]).
    Specifically, the sealed switching element is made of an elastic material, having an opening and a receiving element projecting from the opposite side of the opening. The switching element is attached to the housing when the receiving element is inserted into a through hole formed in the housing to face the switch, in which the pusher is arranged in a state where a shaft is inserted in a space inside the receiving element so that the shaft pushes the lower part of the receiving element. Consequently, the interior space of the receiving element is sealed to the outside by the receiving element. In addition, the receiving member has a loop-shaped rib formed continuously along its outer periphery. The rib is provided in a deformed state by receiving compression from an inner wall of the through hole. Consequently, the seal between the internal wall of the through hole and an external peripheral surface of the receiving element is obtained. When the pusher is pushed, the bottom part and a side part of the receiving element extend in the direction of the switch to thereby press the switch.
    In the sealed structure described in patent document 1, when the pusher is moved in an axial direction, the seal material slides along an internal surface of the tube. As a result, for example, when the portable device is exposed to water, for example, in a case where the pusher is operated in water, the sealing performance becomes unstable because the region sealed by the seal material is moved with the pusher. As a result, there is a danger that the sealing performance will be reduced to an area where the pusher is arranged.
    Also in the waterproof structure described in the patent document 2, there is a similar concern regarding sealing. That is, when the pusher is pushed, the rib formed along the outer periphery of the side portion slides along the inner wall of the through hole when the side portion of the receiving member extends towards the switch. As a result, for example, when actuation of the pusher is carried out in water and the like, the sealing performance becomes unstable and the rib is moved with the pusher. Consequently, there is a danger that the sealing performance will be reduced to the region where the pusher is arranged.
    The techniques of the prior art are disadvantageous in that it is possible to improve the seal around the pusher.
    权利要求:
    Claims (15)
    [1]
    SUMMARY OF THE INVENTION An object of the present invention is to create a sealed device and a portable timepiece capable of improving the seal in a pusher actuating element formed by including an expandable element, a support element and an actuation shaft.
    CH 707 634 B1 In order to solve the above problems, a sealed device according to an embodiment of the present invention comprises:
    an external device housing including a support surface and a hole piercing the center of the support surface;
    an expandable member with the sealing property, including a cylindrical member which is capable of being elongated and capable of being retracted in an axial direction, having one end in the closed axial direction and the other end in the direction axial open, and inserted into the hole, and a flange which is integral with the cylindrical element, which extends from the outer periphery of the open end of the cylindrical element and which is pressed against the surface of support from the outside of the external device housing;
    a support element attached to the external device housing and including a pressure element sandwiching the flange with the support surface in the thickness direction of the flange to thereby guarantee sealing around the flange, and a hole opening connected to the opening; and an actuating shaft including a shaft end projecting towards the outside of the support element through the through hole which is inserted in the cylindrical element and which is arranged to be able to be pushed from outside the housing external device to allow the cylindrical member to lengthen.
    The waterproof device according to the present invention can be applied to portable timepieces such as a wristwatch and a pocket watch, a chronograph, a mobile phone, a portable information terminal device, a radio. waterproof, a waterproof electric shaver and the like, and the external device housing indicates an external housing and so on.
    Advantageously, the extensible element in the present invention is formed in one piece using metal, flexible plastic, synthetic rubber and so on, in which at least the cylindrical element can be preferably deformed in a way elastic. In this case, the closed end included in the cylindrical element of the extensible element in the present invention is preferably formed to be relatively thick so as not to be easily elastically deformed. As a result, the durability of the end is improved and a pushing force of the actuating shaft to activate / deactivate a switch provided inside the external device housing for controlling the device housed in the external device housing can be positively transmitted to the switch.
    In the present invention, it is preferable that the support element is attached to the external device housing by inserting part of it in a recess formed on the external device housing, however, it is also preferable that the support member is attached to overlap an external surface of the external device housing when the recess is omitted. In addition, as a means of attaching the support member to the external device housing, it is preferable to screw the support element into the external device housing to effect attachment at a point where a fastening element is not necessary. It is also preferable, instead of the above, to attach the support member to the external device housing using an attachment member such as a screw. In the present invention, it is preferable that a sealing ring which can be elastically deformed is made by being sandwiched between the support member and the external device housing by preventing water from entering between the support element and external device housing, however, the sealing ring can be omitted.
    In the present invention, it does not matter if the actuation shaft is connected to the closed end of the cylindrical element or not. In the structure in which the actuation shaft is connected to the closed end of the cylindrical surface, it is possible to omit the device to prevent the actuation shaft from falling out of the external device housing . Conversely, by applying the structure in which the actuating shaft is not connected to the closed end of the cylindrical element, a device for preventing the actuating shaft from falling towards the outside of the external housing of device can also be realized. In the present invention, it is also preferable to connect an actuator head with a diameter larger than the shaft end diameter to the actuator shaft end protruding outward from the outer housing of device to facilitate the pushing operation of the actuating shaft and for decoration, or the invention can be carried out without connecting the actuating head above. The present invention can be achieved by adding a return element such as a spring to return the actuation shaft to a state before being pushed (non-pushed state).
    In the present invention, when the actuation shaft is pushed inward, the actuation shaft pushes and moves the closed end of the cylindrical element included in the expandable element to further protrude inwardly of the external device housing, therefore, the cylindrical member is stretched with elastic deformation from the flange as a starting point. Since the switch and the like for controlling the device housed in the external device housing are pressed by the actuation shaft through the closed end of the cylindrical member based on the aforementioned behavior of the expandable member, a predefined function in the device can be performed.
    Since the through hole of the support element, into which the actuation shaft end is inserted, is connected to the interior of the extendable element, the support element and the interior of the expandable element are exposed to water
    CH 707 634 B1 when the waterproof device is used in water. As a water entry route into the external device housing, it is possible to consider a passage route between the rim of the extensible element and the pressure element of the support element, and then, the passage between the rim and the bearing surface of the external device housing, and again the passage through the hole of the external device housing.
    However, since the rim of the expandable element is sandwiched between the bearing surface of the external device housing and the pressure element of the support element in the thickness direction of the rim, the diameter of the water inlet route is blocked and sealing around the rim is guaranteed. As a result, it is possible to prevent water from entering inside the external device housing. The structure for sealing is not moved in the two cases where the cylindrical member of the extensible member expands and retracts to the original state, therefore, the sealing performance does not become unstable.
    Consequently, the seal in the pusher actuator formed by including the extendable member, the support member and the actuator shaft can be improved according to the present invention.
    In the sealed device in a preferable mode of the present invention, the support element is removable vis-à-vis the external device housing.
    In the preferred mode, the actuation shaft and the expandable member can be removed by removing the support member from the external device housing. In other words, the pusher actuator formed by including the extendable member, the support member and the actuator shaft can be disassembled. Consequently, if the tightness of the expandable element is reduced, replacement can be carried out.
    In the sealed device in a preferable mode of the present invention, the expandable member may include a one-piece metal bellows, the pressure member may have a sealing ring which can be elastically deformed, and the ring The sealing surface and the bearing surface can sandwich the rim in order to obtain sealing in this way around the rim.
    In the preferable mode, the sealing ring included in the pressure element is held in an elastically deformed state and coming into close contact with the rim of the extensible element made of a metal bellows, by therefore, the water entry route from the support member and the interior of the expandable member into the external device housing is blocked to thereby ensure sealing around the flange when the waterproof device is used in water. Since the structure for sealing is not moved independently of the extension / retraction of the cylindrical member of the extensible member, the sealing performance does not become unstable.
    In the sealed device in a preferable mode of the present invention, the external device housing may have a recess in which the pressure element is inserted and which has a bottom formed by the bearing surface, and a periphery external of the sealing ring can be closely in contact with an internal peripheral wall which is a wall of the hollow and which delimits the section of this hollow.
    In the preferable mode, since the pressure element of the support element is inserted into the hollow of the external device housing, the projection of the support element from the external surface of the external device housing can be further reduced. In addition, when water enters between the pressure element and the internal peripheral wall delimiting the section of the hollow, it is possible to prevent water from reaching the interior of the external device housing by the ring d sealing by coming into close contact with the internal peripheral wall delimiting the section of the hollow.
    In the sealed device in a preferable mode of the present invention, the expandable element may comprise a one-piece metal bellows, the bearing surface may have a sealing ring which can be elastically deformed, and the ring The sealing element and the pressure element can sandwich the rim in this way to obtain sealing around the rim.
    In the preferable mode, the sealing ring included in the support surface is held in an elastically deformed state and coming into close contact with the edge of the expandable element made of a metal bellows. As a result, the water entry route from the support member and the interior of the expandable member into the external device housing is blocked to thereby ensure sealing around the flange when the sealed device is used in water. Since the structure for sealing is not moved independently of the extension / retraction of the cylindrical member of the extensible member, the sealing performance does not become unstable.
    In the sealed device in a preferable mode of the present invention, the expandable element can be in one piece and made of a flexible material, and the bearing surface and the pressure element can sandwich the rim in order to in this way obtain a seal around the edge.
    When the waterproof device in the preferable mode is used in water, as the water entry route in an external device housing from the support element and the interior of the expandable element, it it is possible to consider the route of passage between the rim of the extensible element and the pressure element of the support element, then the passage between the rim and the bearing surface of the external device housing, and again the passage through the hole of the external device housing.
    However, since the flexible rim included in the extensible element is sandwiched between the support surface of the external device housing and the pressure element of the support element coming into contact with the rim, the
    CH 707 634 B1 diameter of the water inlet route is blocked and sealing around the rim is guaranteed, therefore it is possible to prevent water from entering inside the external device housing . Since the structure for sealing is not displaced in the two cases where the cylindrical element of the extensible element expands and retracts to the original state, the sealing performance does not become unstable. In addition, the flange doubles as the sealing ring when the flange is flexible, which can reduce the number of parts for sealing.
    In the sealed device in a preferable mode of the present invention, the actuation shaft can be connected to the closed end of the cylindrical element.
    In the preferable mode, since the expandable element and the actuation shaft can be assembled, the number of parts during assembly can be reduced. As a result, it is possible to hold the drive shaft so as not to fall from the extendable member.
    In the sealed device in a preferable mode of the present invention, the support element can include a stop element limiting the diameter of the through hole, the actuation shaft can include an engagement element formed for coming into contact with the stop member from the inner side of the outer device housing when the actuating shaft is in a non-pushed state, and the cylindrical member can be elastically deformed and is elastically deformed in a condition additional elastic deformation when the actuating shaft is in a non-pushed state.
    In the preferable mode, as the cylindrical element of the extensible element stretched with the thrust of the actuation shaft pushes the actuation shaft and the cylindrical element returns to the original state due to its elasticity. In this case, the drive shaft contacts the stop member of the support member at a point when the drive shaft is returned to the original state, therefore, the shaft actuation is not moved further and does not fall out of the external device housing. In addition, since the cylindrical member is elastically deformed even when the actuating shaft is positioned by the stop member, the actuating shaft is in a sandwiched state between the closed end of the cylindrical element and the stop element. Therefore, it is possible to prevent the actuating shaft from being moved in its axial direction when the sealed device is transported.
    In order to solve the above problems, a portable timepiece according to an embodiment of the present invention comprises a sealed device according to any one of the respective inventions above.
    According to the present invention, the portable timepiece comprises the waterproof device according to any one of the respective inventions, therefore, it is possible to create a portable timepiece capable of improving the sealing in the the pusher actuator formed by including the expandable member, the support member and the actuator shaft.
    According to the present invention, the structure for sealing including the rim of the expandable element, the bearing surface of the external device housing, and the pressure element of the support element which sandwiches the rim is not moved independently of the movement of the actuating shaft, therefore, the waterproof device and the portable timepiece capable of improving the sealing in the pusher actuating element can be created .
    Brief description of the drawings
    Fig. 1 is a front view showing a wristwatch according to a first embodiment of the present invention.
    Fig. 2 is a sectional view of the wristwatch shown along the line F-F in FIG. 1.
    Fig. 3 is a sectional view showing a pusher actuating element included in the wristwatch of FIG. 1 on an enlarged scale.
    Fig. 4A is a perspective view showing an expandable element included in the pusher actuating element of the wristwatch of FIG. 1, and fig. 4B is a perspective view showing the extensible element seen from a different direction from FIG. 4A.
    Fig. 5 is a sectional view corresponding to FIG. 3 showing a pusher actuating element of a wristwatch according to a second embodiment of the present invention.
    Fig. 6 is a sectional view corresponding to FIG. 3 showing a pusher actuating element of a wristwatch according to a third embodiment of the present invention.
    Fig. 7 is a sectional view corresponding to FIG. 3 showing a pusher actuating element of a wristwatch according to a fourth embodiment of the present invention.
    CH 707 634 B1
    Detailed description of the preferred embodiments A first embodiment of the present invention will be explained with reference to FIGS. 1 to 4.
    The number 11 in Figs. 1 and 2 denote a portable device, for example, a portable timepiece, which is specifically a waterproof type wristwatch having a waterproof performance capable of being used in water. The wristwatch 11 includes an external device housing, for example, an external housing 12 for the timepiece. As shown in FIG. 2, a display window such as a dial 13, an internal device such as a movement 15 controlling the movement of the hour hands 14 (refer to FIG. 1) displaying the time, a lamp not shown, an energy source such as a battery (not shown) and the like are housed inside the external box 12.
    The movement 15 includes at least one reaction element, for example, a contact element 16. These contact elements 16 are formed by leaf springs and the like and protrude from the external periphery of the movement 15. When the contact elements 16 are pushed by operation of the pusher actuating elements 31 described below, the movement 15 and the like fulfills functions predefined to the respective pusher actuating elements 31. For example, the pusher actuator 31 on the upper right in fig. 1 has the start / stop function for measuring time, and the push button actuator 31 on the lower right has the function for switching the lamp on / off.
    As shown in FIG. 2, the outer housing 12 is formed so that a cover glass 22 through which the dial 13 can be seen is attached in a liquid-tight manner to the front surface of a shell 21 formed with an annular shape and made of a metal such as stainless steel or titanium, synthetic resin and so on, and a back 23 made of a metal, a synthetic resin or the like is attached in a liquid-tight manner to the back surface of the shell 21. In the first embodiment, the shell 21 is formed by a single piece of metal, or, instead of the above, can be formed by several shell elements made of a metal and bonded together by soldering and so on.
    Numbers 24 and 25 in fig. 2 respectively denote packaging to keep the liquid-tightness of the outer casing 12. The number 26 in fig. 2 denotes an internal frame supporting the movement 15, and in addition, the number 27 in FIG. 1 denotes a watch winder to operate the movement 15.
    As shown in FIG. 2, the external housing 12 has a recess 28, a support surface 29 and a hole 30 in the area where the pusher actuating element 31 described below is arranged.
    Specifically, the housing recess 28 is formed in the shell 21 as if to open outside the external housing 12. The bearing surface 29 forms the rear of the recess 28. The hole 30 pierces the center of the bearing surface 29. Consequently, the interior and the exterior of the shell 21 are connected by the hollow 28 and the socket 30 in a state where the shell 21 is simple. A female screw element 28a is formed on an internal peripheral wall delimiting the section of the recess 28 so as to be close to an open end of the recess 28 relative to the outside of the shell.
    The pusher actuating elements 31 are provided at given places in the outer case 12, for example, two places in the shell 21 forming a circumferential side wall of the outer case 12, and specifically, on both sides of the winder 27 sandwiching the winder 27 (the upper side and the lower side of the winder 27 in fig. 1). As these pusher actuating elements 31 have the same structure, the pusher actuating element 31 having the function to turn on / off the lamp illuminating the dial 13 will be explained here as a representative.
    As shown in Figs. 2 and 3, the pusher actuator 31 includes an expandable member 32, a support member 41 and an actuator shaft 51.
    Specifically, as shown in Figs. 3, 4A and 4B, the extensible element 32 is formed, for example, of a monobloc metal element, including a cylindrical element 33 and a flange 35. The extensible element 32 in the first embodiment is formed, by example, a bellows that can be extended and retracted. As a result, the sealing of the interior of the expandable member 32 (inside the cylindrical member 33) on the outside is guaranteed.
    One end of the cylindrical member 33 in the axial direction is closed by an end wall 33a and the other end in the axial direction is open. Parts of the cylindrical member 33 other than the end wall 33a have a bellows shape and its cross section in a direction orthogonal to the axial direction is a circle. The cylindrical member 33 can be extended and retracted in the axial direction with deformation due to parts other than the end wall 33a. It is preferable that the extensible element 32 made of a metal is used when the durability must be high compared to the operation of extension / retraction of the cylindrical element 33. As shown in fig. 3, the end wall 33a is formed orthogonal to the axial direction of the cylindrical element 33 with a large thickness so as not to be easily deformed. The end wall 33a has a connection element 33b. The connection element 33b is formed, for example, of a screw element projecting towards the inside of the cylindrical element 33.
    The flange 35 projecting integrally from the outer periphery of the other end of the cylindrical element 33 in the axial direction to be formed with an annular shape continuously around the cylindrical element 33
    CH 707 634 B1 in the circumferential direction. The rim 35 is formed with a large thickness so as not to be easily deformed, and its outside diameter is approximately equal to the diameters of the hollow 28 and of the bearing surface 29.
    The expandable member 32 allows the cylindrical member 33 to pierce through the hole 30 of the outer housing 12 from the outside to the inside of the outer housing 12 and allows the flange 35 housed in the hollow 28 of be placed (to come into contact) on the bearing surface 29 to be combined in this way with the external housing 12. Consequently, the end wall 33a of the cylindrical element 33 exists close to and faces the contact member 16 for pushing the contact member 16. Therefore, when the cylindrical member 33 is extended, the contact member 16 is pushed.
    The support element 41 is made of the same material as the shell 21, including a pressure element 42, a through hole 44 and a stop element 45.
    The pressure element 42 is an element for sandwiching the rim 35 with the bearing surface 29. The pressure element 42 is formed, for example, by including a circular cylindrical element 42a inserted in the hollow 28 and a sealing ring 43 for sealing in the first embodiment. In addition, a male screw element 42b to be screwed to the female screw element 28a to be detachable is provided on the outer periphery of the circular cylindrical element 42a. The male screw element 42b and the female screw element 28a form a means of attachment of the support element 41 relative to the external housing 12.
    The sealing ring 43 is attached to be inserted at the outer periphery of a tip portion of the circular cylindrical member 42a with a small diameter. The sealing ring 43 projects from a point end face of the circular cylindrical element 42a in the above attachment state. The sealing ring 43 is made of materials which can be elastically deformed, for example, flexible plastic such as soft polypropylene and soft vinyl chloride, flexible resin such as an elastomer or synthetic rubber such as fluorite rubber and silicone rubber. The outside diameter of the sealing ring 43 in a free state is larger than the diameter of the hollow 28.
    The through hole 44 pierces the center of the support element 41 in its thickness direction. Consequently, the through hole 44 pierces the pressure element 42. The stop element 45 is provided to limit the diameter of the through hole 44.
    The support element 41 is attached to the shell 21 by inserting the pressure element 42 into the recess 28 and turning the male screw element 42b in a closing direction in a state screwed to the element of female screw 28a. It should be noted that it is possible to remove the support element 41 from the external housing 12 by turning the support element in the opposite direction. The number 41a in fig. 3 shows concave parts formed along the outer peripheral member of the support member 41 with a diameter larger than the pressure member 42 along a circumferential direction at intervals, and the support member 41 can be turned by engaging a tool (not shown) with these concave parts.
    The actuating shaft 51 is made of a metal or a hard synthetic resin, which is intended to be inserted into the cylindrical element 33 and to drill the through hole 44. Consequently, one end of the shaft 52 of the actuation shaft 51 protrudes outward from the support element 41 through the through hole 44. An actuation head 53 is connected to the end of the shaft 52. However, the end shaft 52 and the actuating head 53 are screwed to each other, but they can be connected to each other by other connection means. The actuator head 53 covers the support element 41.
    The actuating head 53 can be omitted. However, when the actuation head 53 is used, the contact area between the shaft head 53 and a fingertip of a user is increased compared to the case where the user directly performs the pushing operation of the user. the shaft end 52. Consequently, it is preferable to improve the thrust actuability of the actuation shaft 51 and to wait for a contribution in relation to the design (decoration) of the wristwatch 11.
    The actuation shaft 51 is connected to the connection element 33b of the end wall 33a. The connection is made by screwing the connection element 33b into a screw hole formed at one end of the actuating shaft 51 on the opposite side of the shaft end 52. However, it is also preferable, at the Instead of the above, the connection can be made by inserting the external peripheral element of the connection element 33b to a connection hole formed at the end of the actuation shaft 51 on the opposite side of the 'shaft end 52 and caulking them. The above case is preferable when the work of processing the threaded grooves on the outer periphery of the connection element 33b and the connection hole can be omitted.
    The actuation shaft 51 includes an engagement element 54. The engagement element 54 is an element having the maximum diameter in the actuation shaft 51, and its diameter is approximately the same as the maximum diameter of the through hole 44. The engagement element 54 is engaged to come into contact with the stop element 45 from the internal side of the external housing 12 when the actuation shaft 51 is in a non-pushed state as shown in fig. 3. Diameters of parts other than the engagement element 54 in the actuation shaft 51 are smaller than the diameter of the hole 30 and the inside diameter of the cylindrical element 33.
    Next, the procedure for assembling the pusher actuating element 31 will be explained. Firstly, the actuation shaft 51 is inserted into the cylindrical element 33 of the extensible element 32 by its open end and
    CH 707 634 B1 an operation of rotation of the actuation shaft 51 is carried out in order to screw the actuation shaft 51 in this way to the connection element 33b of the cylindrical element 33.
    In the case where the extensible element 32 and the actuation shaft 51 are supplied as an assembly assembled by the above procedure, the number of parts during the assembly of the actuation element pusher 31 can be reduced, which facilitates assembly. In addition, since the actuation shaft 51 is held by the extendable member 32 to which the actuation shaft 51 is connected, it is possible to prevent the actuation shaft 51 from falling unduly even when the pusher actuating member 31 having a structure in which the stop member 45 and the engaging member 54 are omitted.
    Then, the support element 41 is attached to the external housing 12 from its exterior, allowing the portion of the actuating shaft 51 to protrude from the cylindrical element 33 to pierce the through hole 44 of the support element 41.
    That is to say, the pressure element 42 of the support element 41 is inserted into the hollow 28 of the external housing 12. At this time, the external peripheral surface of the sealing ring 43 of the pressure element 42 comes into contact with the internal peripheral wall delimiting the section of the hollow 28, consequently, the diameter of the sealing ring 43 is reduced with an elastic deformation, and an insertion of the element pressure 42 in the hollow 28 proceeds. In addition, the support element 41 is rotated to be screwed in the above insertion state, thereby screwing the female screw element 28a of the outer housing 12 with the male screw element 42b of the support element 41.
    Consequently, the support element 41 is attached to the external housing 12. In addition, the extensible element 32 is attached to the external housing 12 with the flange 35 sandwiched between the pressure element 42 and the surface support 29. In this case, the flange 35 is sandwiched between the pressure element 42 and the support surface 29 in a state where the sealing ring 43 comes into close contact with the flange 35 with elastic deformation in the thickness direction.
    In the first embodiment, an end face of the tip region with the small diameter of the circular cylindrical element 42a included in the pressure element 42 does not come into contact with the flange 35, and a space is formed between them. Apart from the above, the region between the end face of the tip region with the small diameter and the flange 35 is sealed in a liquid-tight manner by the sealing ring 43 of the pressure element 42. That is to say, the sealing around the rim 35 can be guaranteed in the state of sandwiching of the rim 35 between the sealing ring 43 and the bearing surface 29. In addition, the peripheral surface outer of the sealing ring 43 comes into close contact with the inner peripheral wall defining the section of the hollow 28 as described above, therefore, the region between the outer peripheral surface of the sealing ring 43 and the wall internal device can be sealed in a liquid-tight manner by the sealing ring 43.
    The state in which the pusher element 31 is assembled by the above procedure is shown in Figs. 2 and 3. In the completed assembly state, the through hole 44 of the support element 41 faces the opening of the cylindrical element 33 included in the extendable element 32 to connect the hole in this way opening 44 at the cylindrical element 33.
    In addition, the cylindrical member 33 of the expandable member 32 is elastically deformed by a few degrees in the completed state of assembly. The actuation shaft 51 is in a state slightly oriented towards the outside of the external casing 12 with an elastic force in the above state. The elastic deformation at this time is in a state to allow additional elastic deformation, i.e., elastic deformation in a direction in which the cylindrical member 33 extends further when the actuating shaft 51 is in the state not pushed (described later).
    Then, the actuation shaft 51 is off-center by the elastic force of the cylindrical element 33 as described above. Consequently, the engagement element 54 of the actuation shaft 51 is in an engaged state with the stop element 45 of the support element 41 and the handle end 52 of the shaft d actuation 51 projects towards the outside of the external housing 12 through the through hole 44. Consequently, the shaft end 52 is in a state capable of being pushed towards the interior of the external housing 12. In d other words, the actuation shaft 51 is held in the non-pushed state. The cylindrical element 33 can be extended by pushing the actuation shaft 51 in the non-pushed state. At the last of the assemblies, the actuation head 53 is attached to the shaft end 52 in a screwed manner. The actuator head 53 can be omitted.
    In addition, in the non-pushed state, the end wall 33a of the cylindrical element 33 to which the actuation shaft 51 is connected and the stop element 45 with which the element d engagement 54 is engaged restricts the actuation shaft 51 so as not to move in the axial direction. Consequently, it is possible to suppress the occurrence of abnormal noise due to incorrect movement of the actuating shaft 51 and to suppress the abrasion progress of the cylindrical member 33 due to friction by relative to the actuation shaft 51.
    It is possible to apply a structure in which the actuating shaft 51 is authorized to come into contact with the end wall 33a without being connected to the end wall 33a in the non-pushed state of the actuation shaft 51, and the actuation shaft 51 is restricted so as not to move in the axial direction by engaging the engagement element 54 with the stop element 45. Also in the structure, the actuation shaft 51 can be constructed so as not to move excessively.
    CH 707 634 B1 In addition, the number 56 in FIG. 3 denotes another sealing ring. Another sealing ring 56 is sandwiched between the shell 21 and the support element 41 on the external side of the external housing 12 seen from the screwed part of the female screw element 28a and the male screw element 42b as well as the sealing ring 43. The dust-tight performance of the pusher actuating member 31 can be positively guaranteed due to the double seal by the sealing ring 43 and a other sealing ring 56.
    In addition, it is possible to prevent the oxidation of the screwed part due to the entry of water to the screwed part and an intrusion of foreign material such as sand to the part screwed by another ring d tightness 56. Accordingly, even after the wristwatch 11 is used for a long time, it is possible to prevent the increase of a force to turn the support member 41 in a relaxing direction to release the engagement of the screwed part. As a result, it becomes easy to disassemble the pusher actuating element 31. It is also possible to omit another sealing ring 56 to make the device.
    When the actuation shaft 51 is pushed by touching with a finger of the user the actuation head 53 in the wristwatch 11 including the pusher actuation element 31 assembled as described above , the cylindrical element 33 is stretched together with the thrust to project into the shell 21 with an elastic deformation. Consequently, the actuating shaft 51 pushes the contact element 16 which comes into close contact and faces the end wall 33a through the end wall 33a of the cylindrical element 33. Consequently, the function assigned to the pusher actuating element 31 to which the pusher actuation is assigned is carried out, and for example, a lamp for the illumination of the dial 13 is lit.
    After that, when the force of the pusher actuation relative to the actuation shaft 51 is not added, the cylindrical element 33 is deformed to shorten its length thanks to its own elastic force. As a result, the actuation shaft 51 is retracted outward from the shell 21 to be returned to a state before the pusher actuator 31 is pushed.
    When the wristwatch 11 is used in water, since the through hole 44 of the support element 41, in which the shaft end 52 of the actuation shaft 51 is inserted, is connected to the interior of the expandable member 32, the through hole 44 and the interior of the cylindrical member 33 of the expandable member 32 are exposed to water. However, as the expandable member 32 is the integrated part, there is no danger of water entering the outer housing 12 through the expandable member 32 as long as the expandable member 32 is not damaged . Consequently, as a water entry route in the external housing 12, it is possible to consider the passage route from the through hole 44 to a region between the flange 35 of the expandable element 32 and the pressure 42 of the support element 41, then the passage between the rim 35 and the support surface 29 of the external housing 12, and again the passage through the hole 30 in the external housing 12.
    However, the flange 35 of the extendable element 32 made of a metal bellows is sandwiched between the bearing surface 29 and the sealing ring 43 of the pressure element 42 in the direction of thickness of the rim 35, and the sealing ring 43 comes into close contact with the rim 35 in the elastically deformed state. Consequently, the water entry route is blocked between the flange 35 and the pressure element 42, and the sealing around the flange is guaranteed, thereby preventing the entry of water into the external housing 12 .
    The structure for sealing is formed so that the flange 35 of the expandable element 32 is sandwiched between the bearing surface 29 of the outer housing 12 in a fixed state relative to the extension / retraction of the expandable member 32 and the pressure member 42 of the support member 41 attached to the outer housing 12. Consequently, the flange 35 is not moved in the two cases where the cylindrical member 33 of the extensible element 32 extends and retracts to the original state. Consequently, the sealing performance of the pusher actuating element 31 does not become unstable.
    As explained above, the seal in the pusher actuator 31 formed by including the extendable member 32, the support member 41 and the actuator shaft 51 can be improved.
    Furthermore, the sealing ring 43 included in the pressure element 42 which comes into close contact with the internal peripheral wall delimiting the section of the hollow 28 in the elastically deformed state. Consequently, if water enters between the external peripheral surface of the pressure element 42 and the internal peripheral wall delimiting the section of the hollow 28, the sealing ring 43 can block the water so that it does not does not reach the inside of the shell 21. Consequently, it is possible to omit another sealing ring 56 and to reduce the number of parts.
    As explained above, even when the pusher actuation is carried out with the pusher actuating element 31 in the water, it is possible to guarantee the tightness of the pusher actuating element 31 with high reliability. Consequently, it is not necessary to form a closure means to inhibit the pusher actuation of the pusher actuator 31 in water. In addition, as the force to return the actuation shaft 51 to the non-pushed state is given to the actuation shaft 51 in the extensible element 32 which performs the sealing, an element such as a spring helical to turn the shaft is not necessary. Consequently, the pusher actuator 31 has a simple structure and is formed to be compact, therefore, even when the outer housing 12 is thin, the pusher actuator 31 can be arranged ensuring the tightness to match the structure.
    CH 707 634 B1 In addition, the support element 41 of the pusher actuating element 31 can be removed from the external housing 12 in a reverse attachment procedure, therefore, after that, the pusher actuator
    31 can be disassembled by pulling the actuation shaft 51 and the extendable member 32 out of the outer housing 12 using the shaft end 52 of the actuation shaft 51 as a socket. Consequently, if the tightness of the extensible element 32 is reduced, replacement can be carried out.
    FIG. 5 shows a second embodiment of the present invention. Structures of the second embodiment are the same as the first embodiment except the following description, therefore, the same structures or structures having the same functions as the first embodiment will be denoted by the same numbers and the explanation will be omitted.
    In the wristwatch 11 according to the second embodiment, the actuation head explained in the first embodiment is omitted and the actuation shaft 51 with a single shaft is formed, thereby simplifying the structure of the actuating shaft 51. In addition, another sealing ring explained in the first embodiment is also omitted. Other structures of the second embodiment are the same as the wristwatch 11 of the first embodiment including structures not shown in FIG. 5.
    Consequently, also in the second embodiment, it is possible to create the wristwatch 11 capable of improving the tightness of the pusher actuating element 31 formed by including the extensible element 32, the support element 41 and the actuation shaft 51 according to the reasons explained in the first embodiment.
    FIG. 6 shows a third embodiment of the present invention. Structures of the third embodiment are the same as the first embodiment except the following description, therefore, the same structures or structures having the same functions as the first embodiment will be denoted by the same numbers and the explanation will be omitted.
    In the wristwatch 11 according to the third embodiment, the actuation head explained in the first embodiment is omitted and the actuation shaft 51 with a single shaft is formed, thereby simplifying the structure of the actuating shaft 51. In addition, another sealing ring explained in the first embodiment is also omitted.
    In addition, in the wristwatch 11 according to the third embodiment, the pressure element 42 does not include the sealing ring 43 but the sealing ring 43 is added to a circular groove formed on the bearing surface 29. When the sealing ring 43 including the bearing surface 29 as described above is authorized to come into contact with the flange 35 and an end face of the cylindrical element 42a circular including the pressure element 42 is allowed to come into contact with the flange 35, the flange 35 is sandwiched between the bearing surface 29 and the pressure element 42. The sealing ring 43 taken sandwich is held in the elastically deformed state.
    Consequently, water passing through the through hole 44 towards a region between the pressure element 42 and the flange 35 and water passing through the screwed part between the female screw element 28a and l the male screw element 42b is stopped by the sealing ring 43. As the sealing around the rim can be guaranteed, water entering the shell 21 can be avoided. In the third embodiment, the pressure element 42 is formed only by the circular cylindrical element. Other structures of the third embodiment are the same as the wristwatch 11 of the first embodiment including structures not shown in FIG. 6.
    Consequently, also in the third embodiment, it is possible to create the wristwatch 11 capable of improving the tightness of the pusher actuating element 31 formed by including the extensible element 32, the support element 41 and the actuation shaft 51 according to the reasons explained in the first embodiment.
    FIG. 7 shows a fourth embodiment of the present invention. Structures of the fourth embodiment are the same as the first embodiment except the following description, therefore, the same structures or structures having the same functions as the first embodiment will be denoted by the same numbers and the explanation will be omitted.
    In the wristwatch 11 according to the fourth embodiment, the extensible element 32 is formed in one piece using a flexible material, not using the metal bellows. As materials for making the stretchable member 32, flexible materials which can be elastically deformed, for example, flexible plastic such as soft polypropylene and soft vinyl chloride, flexible resin such as elastomer or rubber synthetic such as fluorite rubber and silicone rubber can be cited. Consequently, the flange 35 of the extensible element
    32 can be resiliently deformed in the thickness direction. As the expandable member 32 made of flexible material is preferable in a point whose corrosion resistance with respect to seawater and so on is higher than the expandable member made of metal, it is suitable as part of a divers' watch which can be used in seawater.
    In addition, in a form in which the tip of the pressure element 42 included in the support element 41 touches the flange 35, the pressure element 42 and the support surface 29 of the external housing 12 sandwich the rim 35 in the elastically deformed state. Consequently, water passing from the through hole 44 to a region between the pressure element 42 and the flange 35 can be stopped and water passing between the bearing surface 29 and the flange
    CH 707 634 B1
    35 towards hole 30 can be stopped. As the seal around the rim can be guaranteed as described above, it is possible to prevent water from entering the shell 21. In the fourth embodiment, the pressure element 42 is formed only by the circular cylindrical element. Other structures of the fourth embodiment are the same as the wristwatch 11 of the first embodiment including structures not shown in FIG. 7. Consequently, also in the fourth embodiment, it is possible to create the wristwatch 11 capable of improving the tightness of the pusher actuating element 31 formed by including the extensible element 32, the support element 41 and the actuation shaft 51 according to the reasons explained in the first embodiment. In addition, the flange 35 doubles as much as a gasket, the number of parts forming the pusher actuating element 31 can be reduced and the structure can be simplified.
    In the above embodiment, the rim 35 has an annular shape, however, the present invention is not limited to the above, and for example, the shape of the rim can be a polygonal shape. In other words, the flange 35 can apply various shapes as long as the flange can be placed on the support surface 29.
    claims
    1. Waterproof device comprising:
    an external device housing (12) including a support surface (29) and a hole (30) piercing the center of the support surface (29);
    an expandable member (32) with the sealing property, including a cylindrical member (33) which is capable of being elongated and capable of being retracted in an axial direction, having one end in the closed axial direction and l 'other end in the open axial direction, and inserted in the hole (30), and a flange (35) which is integral with the cylindrical element (33), which extends from the outer periphery of the end open of the cylindrical element (33) and which bears against the bearing surface (29) on the outside of the external device housing (12);
    a support element (41) attached to the external device housing (12) and including a pressure element (42) sandwiching the flange (35) with the support surface (29) in the thickness direction of the flange (35) in this way to guarantee sealing around the rim (35), and a through hole (44) connected to the opening; and an actuation shaft (51) including a shaft end (52) projecting outward from the support member (41) through the through hole (44), which is inserted into the cylindrical member ( 33) and which is arranged to be able to be pushed from the outside of the external device housing (12) in order to allow the cylindrical element (33) to lengthen.
    [2]
    2. A sealed device according to claim 1, wherein the support element (41) is removable vis-à-vis the external device housing (12).
    [3]
    3. A waterproof device according to claim 1, in which the extensible element (32) comprises a one-piece metal bellows, the pressure element (42) has a sealing ring (43) which can be elastically deformed, and l 'sealing ring (43) and the bearing surface (29) sandwich the flange (35) in order to obtain in this way the seal around the flange (35).
    [4]
    4. A waterproof device according to claim 2, in which the extensible element (32) comprises a one-piece metal bellows, the pressure element (42) has a sealing ring (43) which can be elastically deformed, and l 'sealing ring (43) and the bearing surface (29) sandwich the flange (35) in order to obtain in this way the seal around the flange (35).
    [5]
    5. A sealed device according to claim 3, in which the external device housing (12) has a recess (28) in which the pressure element (42) is inserted and which has a bottom formed by the bearing surface ( 29), and an external periphery of the sealing ring (43) is closely in contact with an internal peripheral wall which is a wall of the recess (28) and which delimits the section of this recess (28).
    [6]
    6. A sealed device according to claim 4, in which the external device housing (12) has a recess (28) in which the pressure element (42) is inserted and which has a bottom formed by the bearing surface ( 29), and an external periphery of the sealing ring (43) is closely in contact with an internal peripheral wall which is a wall of the recess (28) and which delimits the section of this recess (28).
    [7]
    7. A waterproof device according to claim 1, in which the extensible element (32) comprises a one-piece metal bellows, the bearing surface (29) receives a sealing ring (43) which can be elastically deformed, and l the sealing ring (43) and the pressure element (42) sandwich the rim (35) in order to obtain in this way the sealing around the rim (35).
    [8]
    8. A waterproof device according to claim 2, in which the extensible element (32) comprises a one-piece metal bellows,
    CH 707 634 B1 the bearing surface (29) receives a sealing ring (43) which can be elastically deformed, and the sealing ring (43) and the pressure element (42) sandwich the rim (35) in order to obtain sealing in this way around the rim (35).
    [9]
    9. A sealed device according to claim 1, in which the extensible element (32) is in one piece and made of a flexible material, and the bearing surface (29) and the pressure element (44) sandwich the flange ( 35) in order to obtain in this way the seal around the rim (35).
    [10]
    10. A sealed device according to claim 2, in which the extensible element (32) is in one piece and made of a flexible material, and the bearing surface (29) and the pressure element (44) sandwich the flange ( 35) in order to obtain in this way the seal around the rim (35).
    [11]
    11. A sealed device according to one of claims 1 to 10, in which the actuation shaft (51) is connected to the closed end of the cylindrical element (33).
    [12]
    12. A sealed device according to claim 11, in which the support element (41) includes a stop element (45) limiting the diameter of the through hole (44), the actuation shaft (51) includes an element of engagement (54) formed to come into contact with the stop element (45) from the internal side of the external device housing (12) when the actuation shaft (51) is in an non-pushed state, and the cylindrical member (33) can be resiliently deformed and is resiliently deformed in a state allowing further elastic deformation when the actuating shaft (51) is in a non-pushed state.
    [13]
    13. Portable timepiece, comprising a waterproof device according to one of claims 1 to 10.
    [14]
    14. A portable timepiece, comprising a waterproof device according to claim 11.
    [15]
    15. A portable timepiece, comprising a waterproof device according to claim 12.
    CH 707 634 B1
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    同族专利:
    公开号 | 公开日
    CH707634A2|2014-08-29|
    CN103995456B|2017-07-14|
    US20140233359A1|2014-08-21|
    US8920022B2|2014-12-30|
    CN103995456A|2014-08-20|
    JP6034216B2|2016-11-30|
    JP2014160004A|2014-09-04|
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    法律状态:
    优先权:
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