• 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:
    A watch in which the scribing engagement of a display plate with coupling projections of a casing ring and the attachment / detachment of the display plate causing loosening of the grip is easy. The watch according to the invention is equipped with a movement (21), a solar cell panel (25), a casing ring (31) and a dial (41). The panel (25) is attached to the movement (21). The casing ring (31) is attached to the peripheral portion of the movement (21). The casing ring (31) has, at a plurality of positions thereof, recesses (33) and a pair of coupling projections (35) projecting upwardly from the bottom of each recess ( 33). These recesses (33) are present in an upper surface (31a), at the outer periphery of the casing ring (31). The coupling projections (35) form a slot (G) therebetween and are capable of elastic deformation. A proximal portion (35a) of each mating protrusion (35) is located below the upper surface (31a) of the casing ring (31). The dial (41) has cutouts (42) at several locations on its outer diameter. Each of these cutouts (42) is engaged with a pair of coupling projections (35) to join the dial (41) to the casing ring (31). The cutouts (42) are arranged so that the recesses (33) are covered when the dial (41) is mounted on the casing ring (31).
    公开号:CH702864B1
    申请号:CH00445/11
    申请日:2011-03-17
    公开日:2016-11-15
    发明作者:Hiranuma Haruki；Imai Kazutaka
    申请人:Seiko Instr Inc；
    IPC主号:
    专利说明:

    Field of the invention
    The invention relates to a watch, such as a wristwatch, in which a panel for energy generation or light emission is attached to a watch movement and in which this panel is covered with a billboard. The invention relates in particular to an improved watch with regard to the construction for mounting the display plate.
    State of the art
    As a prior art, there is known a watch in which a solar cell or electroluminescence and a display plate are attached to each other (see for example Japanese Patent No. 4 398 555 (paragraphs 0016). at 0044, Fig. 1 to 6)).
    In this state of the art, an auxiliary ring consisting of a resin molding has at a plurality of positions on the upper surface of the outer peripheral portion of the latter a pair of column-shaped projections, respectively, as shown in FIG. a projection on the lower surface thereof. This projection of this auxiliary ring is engaged with a watch movement to fix the auxiliary ring to this watch movement. At the same time, the display plate is formed as a thin plate into a transparent molding of acrylic resin, polycarbonate, etc., and a plurality of cutouts are provided in the peripheral portion thereof. However, by placing these cutouts in engagement with the column-shaped projections of the movement, the display plate is fixed in its position.
    In particular, the pair of column-shaped projections is formed with a slot between them and they are shaped to be susceptible to elastic deformation towards the slot. The cutouts of the display plate are engaged with the latter, with the pair of column-shaped projections arranged on the inner side of the latter being deformed elastically. Therefore, it is possible to attach the display plate so as to prevent lateral displacement or rotation of the latter.
    Presentation of the invention
    In a watch according to the state of the art, to detach the display plate movement, according to current practice, it necessarily removes the display plate using a tool such as tweezers. It is effective and desirable to effect this forced removal at a position near the cutouts engaged with the columnar projections.
    However, in the state of the art, the peripheral portion of the display plate, comprising the peripheral portions of the cutouts, is provided to be in contact with the upper surface of the auxiliary ring. Therefore, it is quite difficult to insert, at a position near the cutouts, a tool such as a tweezers in the slot between the peripheral portion of the display plate and the upper surface of the auxiliary ring, so that the display plate can not be easily removed.
    In addition, in the state of the art, the length of the column-shaped projections, measured from the upper surface of the outer peripheral portion of the auxiliary ring, is small (small). As a result, the column-shaped projections are not easily elastically deformed, so that engagement of the cutouts with the column-shaped projections to secure the display plate to the auxiliary ring is rather troublesome.
    As described above, the state of the art has a problem in that it is quite difficult to easily perform the attachment / detachment of the display plate, which requires an engagement of the cutouts of the display plate with the column-shaped projections of the auxiliary ring.
    In order to solve the aforementioned problem, there is provided, according to the present invention, a watch comprising a movement; a casing ring attached to a peripheral portion of the movement, the casing ring being provided at a plurality of positions thereof with recesses respectively open towards the upper surface and the outer peripheral surface of the casing ring, with a pair of coupling projections, which have a slot therebetween, which are capable of elastic deformation and which rise upwards from the casing ring, from the bottom of each recess, the proximal portions of the projections of coupling being below said upper surface; and a display plate which has cutouts at a plurality of peripheral positions thereof and which is arranged to cover the panel, each pair of coupling projections being engaged with the edge of one of the cutouts so as to to unite the display plate to the casing ring, the parts of the display plate at the edge of the cutouts covering the recesses.
    When the present invention is applied to an analog watch, the expression "movement" refers to a movement (clockwork) driving a plurality of time indicator hands, and when the present invention is applied to a digital watch, the expression "movement" refers to an electronic circuit controlling a time indicator display, etc. In the present invention, the term "panel" refers to a solar cell panel, a light emitting panel, etc. In the present invention, the pair of coupling projections respectively provided at a plurality of positions of the casing ring is shaped into a columnar configuration; the plane configuration of the latter may be any of a substantially circular, substantially elliptical, substantially oval, substantially trapezoidal, substantially quadratic configuration, etc. and the proximal portions of the coupling projections may have the same section as those of a portion above them, or may be shaped to be thicker than the portion above them and The thickness can gradually increase towards the bottom of the recesses. Further, in the present invention, the expression "the proximal portions are below the upper surface (of the casing ring)" means that at least the lower portions of the proximal portions are below the upper surface of the casing ring, and is not restricted to the positioning of all the proximal parts. Furthermore, when the present invention is applied to a similar watch, the term "display plate" refers to a transparent dial, and when the present invention is applied to a digital watch, it refers to a cover plate / cover plate (commonly referred to as panel cover) having a window facing a desired portion of a time indicator display, etc., the non-window portion of which covers the display.
    In the present invention, a pair of coupling projections extend from the bottoms of the recesses provided in the casing ring, and the proximal portions of the coupling projections are located below the upper surface of the casing. casing ring, so that the coupling projections facilitate elastic deformation in order to reduce the mutual slot, since the length of the coupling projections can be increased according to the depth of the recesses. Thus, the cutouts of the display plate can be engaged with the pair of coupling projections in an easy manner so that the display plate covering the panel attached to the movement can be easily mounted to the casing ring. In the state where the display plate has just been mounted, the parts of the display plate at the periphery of the cutouts cover the recesses of the casing ring; the recesses are open in the outer peripheral surface of the casing ring. Thus, the tool for detaching the display plate can be easily inserted into the recesses from the outside of the casing ring, whereby it is possible to detach the display plate in engagement with the projections. coupling the casing ring by forced removal of the latter by the tool arranged on the rear side of the display plate.
    According to a preferred embodiment of the present invention, the proximal portions of the coupling projections are shaped so that their cross section increases gradually as one approaches the bottom of the corresponding recess.
    According to this preferred embodiment of the invention, the shapes of the recesses and the peripheral surfaces of the proximal portions of the coupling projections are continuous with each other by establishing an obtuse angle between them, or by not forming no angle so that the stress in a state in which the coupling projections are elastically deformed, is not easily concentrated on the proximal portions. Therefore, the fear of crack formation in the proximal portions of the coupling projections by an external force such as a vibration applied to the watch is reduced, and advantageously, it is furthermore possible to maintain the plate of the coupling plate. display reliably in a state in which it is mounted to the casing ring.
    According to a preferred embodiment of the present invention, in longitudinal section of the coupling projections, the peripheral surfaces of the proximal portions of the coupling projections are in the form of arcs connecting the bottoms of the recesses to the parts that the protrusions of mating possess above their proximal parts.
    According to this preferred embodiment of the invention, the bottoms of the recesses and the peripheral surfaces of the proximal portions have a smooth continuity with each other without any angle formation between them. Thus, there is the additional benefit that the fear of a crack generation in the proximal portions is further reduced, since the concentration of constraints allowed on the proximal portions is less.
    According to a preferred embodiment of the present invention, the coupling projections have substantially a quadratic prism-shaped configuration. In this invention, the substantially quadratic prism-like configuration does not only imply that the cross-sectional configuration of the mating projections is rectangular or quadratic, but also involves a construction, in which rounded projections (shaped like a section of a bead) are provided on the lateral sides engaged with the cut-outs, or a construction in which the lateral surfaces extend in an outwardly arcuate manner, with the projecting forward end portions being in taken with the cutouts.
    In this preferred embodiment, the cross sectional area of the coupling projections is larger (larger) than that compared with the case where the coupling projections have a columnar configuration, so that it is It is possible to increase the elastic force of the coupling projections engaged with the cutouts of the display plate without causing an increase in the thickness of the coupling projections in their entirety. Thus, there is an additional advantage in that it is possible to mount the display plate to prevent unintentional detachment of the coupling projections. In addition, by increasing the cross-sectional area, compared to the case where the mating projections are shaped in a thick columnar configuration, there is no particular need to deepen the cutouts of the cross-section. the display plate. Therefore, there is an additional advantage that the inner diameter of the panel cover covering the peripheral portion of the display plate is not reduced, and that it is not necessary to increase the internal diameter. of the middle band.
    According to a preferred embodiment of the present invention, the parts of the recesses have the same depth.
    In this preferred embodiment of the invention, when producing the mold / molding to form the angular member, the molding portions corresponding to the recesses are not formed by projections and recesses, so that mold production is easy. Thus, with the reduced molding cost, there is the added benefit that the cost of the angular element can be further reduced.
    According to a preferred embodiment of the present invention, each recess comprises a pair of mutually parallel first recess portions, a second recess portion and a third recess portion, the proximal portion of each mating protrusion comprising a first side surface, located on the side opposite the slot, and a second side surface, located on the side of the slot, each first recess portion having a side surface formed by one of the first side surfaces, each first part of recess having first and second ends, the first end of each first recess portion being open in the outer peripheral surface of the interlocking ring, the second recess portion having side surfaces formed by the second side surfaces, the second recess portion having first and second ends the first end of the second recess portion being open in the outer peripheral surface of the casing ring, the second recess portion forming the lower portion of the slot, the third recess portion connecting the second ends of the first recess portions and the second recess portion to each other, the first recess portions being deeper than the second recess portion.
    In this preferred embodiment of the invention, the depth of the first recess portions, whose first ends are open in the outer peripheral surface of the casing ring, is important (large), so that there is has an additional advantage in that, when the display plate is detached, a tool for detachment can be more easily arranged by insertion into the rear side of the display plate.
    According to a preferred embodiment of the present invention, each coupling projection is provided with a rounded projection (shaped like a section of a bead) which extends parallel to the longitudinal direction of said coupling projection and which is provided at a side surface of each coupling projection, namely the opposite side of the slot, this rounded projection being engaged with the edge of the cutout.
    In this preferred embodiment of the invention, by taking the rounded projection with the edge of the cutout, an additional advantage is obtained in that the lateral surfaces of the coupling projections are brought into contact with the edge. easier and more reliable, making it possible to mount a display plate without causing any rattling (click action noise).
    According to a preferred embodiment of the present invention, the panel is a photovoltaic panel provided for generating electrical energy by photoelectric conversion.
    This preferred embodiment of the invention has an additional advantage in that the energy supplied to the movement, etc. driven, for example, by electrical energy, can be generated by a solar cell panel receiving light transmitted through the display plate.
    According to a preferred embodiment of the present invention, the panel is a light emitting panel which is intended to emit light when it is supplied with electricity.
    In this preferred embodiment of the invention, the light emitting panel emits light by electricity supplied to the latter, making it possible to perform a backlighting on the display plate, so that It is furthermore possible to advantageously improve the visibility of the time display, etc.
    In the watch of the present invention, it is possible to increase the length of the coupling projections of the casing ring, and the tool for detaching the display plate having cutouts engaged with the projections of the casing. The coupling can be easily inserted into the rear side of the latter, so that the engagement of the cutouts with the coupling projections and the attachment / detachment of the display plate requiring the release of this plug, can be easily done.
    Brief description of several views of the drawings
    [0029]<tb> Fig. 1 <SEP> is a sectional view of a portion of a wristwatch according to a first embodiment of the present invention.<tb> Fig. 2 <SEP> is a schematic front view of a watch movement with which the wristwatch of FIG. 1 is equipped, illustrating a state in which a solar cell panel and a display plate are attached thereto.<tb> Fig. 3 <SEP> is an enlarged view of a portion F3 of FIG. 2.<tb> Fig. 4 <SEP> is a sectional view along the line F4-F4 of FIG. 3.<tb> Fig. <SEP> is a sectional view along the line F5-F5 of FIG. 3.<tb> Fig. 6 <SEP> is an enlarged front view of a recess with which the wristwatch of FIG. 1 is equipped, and a pair of mating protrusions protruding from this recess.<tb> Fig. 7 <SEP> is a sectional view corresponding to FIG. 4, illustrating a portion of a wristwatch according to a second embodiment of the present invention.<tb> Fig. 8 <SEP> is a sectional view corresponding to FIG. 4, illustrating a portion of a wristwatch according to a third embodiment of the present invention.<tb> Fig. 9 <SEP> is a sectional view corresponding to FIG. 4, illustrating part of a wristwatch according to a fourth embodiment of the present invention.
    Detailed Description of the Preferred Embodiments
    [0030] Hereinafter, the first embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6.
    In fig. 1, the number 1 designates a watch such as a portable watch and more particularly a wristwatch. The wristwatch 1 is equipped with an outer watch structure 2, a movement such as a movement 21, a panel such as a solar cell panel 25, a casing ring 31, and a display plate such as a dial 41.
    The outer structure of the watch 2 is equipped with an outer member 6 made of metal or synthetic resin having a middle band 4 and a back box 5 (a box bottom) and a cover glass 7. The back box 5 is connected to the middle band 4 being pressed into the latter. The outer member 6 may also be a one-piece construction in which the middle strip 4 and the back box 5 are formed one integral with the other (in one piece). The cover glass 7 is attached in a liquid-tight manner to the inner side of an ice-supporting part 4a formed on the middle band 4.
    The outer member 6 has a panel cover 4b. Although the panel cover 4b shown in FIG. 1 is integrally formed with the inner periphery of the middleband 4, it may also be a ring-shaped element formed separately from the middleband 4. The panel cover 4b has a bevel (an inclined surface) 4c, and the bevel 4c is opposite to the rear surface of the peripheral portion of the cover glass 7.
    The movement 21 is driven by electrical energy generated by the solar cell panel 25 described below, and is equipped with a secondary cell or a capacitor and so on. (not shown) to accumulate electrical energy. The plan view of the movement 21 is circular. The movement 21 is supported on the inner side of an annular casing ring. The casing ring is incorporated in the outer watch structure 2 by engaging with the outer member 6.
    The movement 21 has a gripping portion 22. The engaging portion 22 is provided at the peripheral portion of the movement 21 and closer to the side of the upper surface 21a, and is shaped, for example, as an annular projection so as to continues in the peripheral direction of the movement 21. As illustrated in FIG. 4, the engaging portion 22 is somewhat retracted in the direction of the rear (bottom) side of the movement 21 relative to the upper surface 21a of the movement 21.
    The solar cell panel 25 is a panel formed by mounting a solar cell on a substrate (not shown) (as a power generating element generating power by photoelectric conversion). The solar cell may be of the crystalline type or of the amorphous type. The diameter of the solar cell panel 25 is somewhat smaller than the diameter of the motion 21; it is fixed to the upper surface 21a of the movement 21 by using an adhesive element 26. A double-sided adhesive tape on both sides can be suitably used as an adhesive element 26.
    The casing ring 31 is a one-piece molding of synthetic resin. The plan view of the casing ring 31 is in the form of a ring; its inner diameter is somewhat greater than the diameter of the solar cell panel 25, and its outer diameter is greater than the diameter of the movement 21. The casing ring 31 has a socket groove 32 open in the inner surface and the back surface ( lower surface) of the latter. The gripping groove 32 is shaped in an annular configuration so as to be continuous in the circumferential direction of the casing ring 31.
    In addition, the casing ring 31 has, at a plurality of positions, a recess 33 and a pair of coupling projections 35, as well as parts of hooks 38 (only one of which is illustrated in FIG. 1) at a plurality of positions on the rear surface thereof. As shown in fig. 2, the recess 33 is provided at two positions of the position of the outer peripheral portion of the casing ring 31 spaced from each other, for example, by 180 degrees. The recesses 33 are open in an upper surface 31a and the outer peripheral surface of the casing ring 31; as shown in fig. 6, each recess is composed of a pair of first recess portions 33a, as well as a second recess portion 33b at a fourth recess portion 33d.
    The pair of first recess portions 33a and the second recess portion 33b located therebetween are parallel to each other. One end of each of the first recess portions 33a and the second recess portion 33b is open in the outer peripheral surface of the casing ring 31. A third recess portion 33c is provided to extend between the other ends of the pair of first recess portions 33a, with the other end of the second recess portion 33b being continuous with the central portion in the longitudinal direction of the third recess portion 33c. The fourth recess portion 33d is provided to extend between an end portion of the pair of first recess portions 33a, and is open in the outer peripheral surface of the casing ring 31 over the entire longitudinal portion. of the last. An end portion of the second recess portion 33b is continuous with the central portion in the longitudinal direction of the fourth recess portion 33d.
    A first recess portion 33a and the second recess portion 33b and an end portion of the third recess portion 33c and the fourth recess portion 33d extending therebetween, are continuous with each other in, for example, a rectangular annular configuration. Similarly, the other first recess portion 33a and the second recess portion 33b as well as the other end portions of the third recess portion 33c and the fourth recess portion 33d are also continuous with each other. the others in, for example, a rectangular annular configuration.
    The first recess portions 33a at the fourth recess portion 33d have the same depth D1 (see Figures 4 and 5). Since the parts of the recess 33 are thus of the same depth D1, when a mold is made for molding the casing ring 31, the parts of the mold corresponding to the recesses 33 are not formed as protrusions and projections. recesses. Thus, the manufacture of the mold is facilitated and the costs of the mold are reduced, thus making it possible to obtain a reduction in production costs of the casing ring 31.
    The pair of coupling protrusions 35 is provided in each recess 33, each of which extends integrally and upwardly from the bottom of the recess 33. Thus, in a preferred example, the entire proximal portions 35a of the coupling projections 35 are located below the upper surface 31a of the casing ring 31. As shown in FIG. 4, etc., a slot G is formed between the pair of coupling projections 35, and the pair of coupling projections 35 is shaped to be susceptible to elastic deformations to reduce the gap G. In the state free, the width of the slot G is the same as the width of the second recess portion 33b.
    As illustrated in FIG. 6, etc., each coupling projection 35 has a rounded projection 36 on a side surface of the coupling projection 35 on the opposite side of the slot G, and a rounded projection 37 on another side surface of the latter continues with a lateral surface at right angles and located on the inner peripheral side of the casing ring 31; the coupling projections are shaped in a quadratic prism-like configuration. As illustrated in figs. 3 and 6, the coupling projections 35 have substantially a quadratic configuration, and preferably their plan view is substantially rectangular in configuration. In this case, the coupling projections 35 are provided in such a way that the lateral surfaces constituting the longer sides of the latter extend in the radial direction of the casing ring 31. Therefore, compared to the case where the shorter sides of the latter extend in the radial direction of the casing ring 31, the coupling projections 35 more easily undergo elastic deformation.
    As illustrated in FIG. 6, the rounded projections 36 and 37 are, for example, at central positions in the width direction of the side surfaces on which they are provided, and consist of projections of an arcuate configuration in plan view. The rounded projections 36 and 37 extend in a direction parallel to the direction in which the central axes (not shown) of the coupling projections 35 extend. As illustrated in FIGS. 4 and 5, the upper ends of the rounded projections 36 and 37 are somewhat below the upper ends of the coupling projections 35, and the lower ends of the projections 36 and 37 reach the proximal portions 35a of the coupling projections 35. .
    The proximal portions 35a of the coupling projections 35 are surrounded by the first recess portions 33a at the fourth recess portion 33d, which are annularly continuous with each other, as described above. The pair of coupling projections 35 forming the slot G may also be shaped to have side surfaces that are flush with the outer peripheral surface of the casing ring 31; in this case, the fourth recess portion 33d is omitted.
    As illustrated in FIG. 4, in sectional view in the axial direction of the coupling projections 35, the peripheral surfaces of the proximal portions 35a of the coupling projections 35 are formed by arcs connecting the portions above the proximal portions 35a and the bottom surface. of the recess 33. Therefore, the peripheral surfaces of the proximal portions 35a are continuous without forming a wedge between the portions above the proximal portions and the bottom surface of the recess 33. As a result, the protrusions coupling 35 are shaped so that their thickness increases gradually towards the bottom of the recess 33. Thus, a lateral surface of the proximal portion 35a of each coupling projection 35 located on the opposite side to the slot G, without find next to the slot G, also serves as a groove side surface 35b of the first recess portion 33a. Similarly, the other side surface of the proximal portion 35a of each mating protrusion 35 facing the slot G also serves as a groove side surface 35c of the second recess portion 33b.
    As illustrated in FIG. 1, the casing ring 31 is mounted to the movement 21 by hooking the hook portion 38 thereof to the lower surface of the engagement portion 22 of the movement 21, and placing the engaging groove 32 in engagement with the surface superior of the latter. With the aforementioned assembly, the recesses 33, spaced from each other by 180 degrees, are arranged in the direction 12 o'clock - 6 o'clock, as shown in FIG. 2, and the upper surface 31a of the casing ring 31, except for the mating protrusions 35, is located somewhat higher than the upper surface of the solar cell panel 25. The arrangement of the pair of recesses 33 is not restricted to the direction 12 o'clock - 6 o'clock; it can also be arranged in the 9 o'clock - 3 o'clock direction or in any other direction.
    The dial 41 is formed as a thin plate (thin plate) of a transparent molding of acrylic resin or polycarbonate, and is provided with a graduated scale, numbers, networks, etc. (not shown) The circular dial 41 is of a diameter somewhat smaller than the outer diameter of the casing ring 31. The dial 41 has cutouts 42 at a plurality of positions of the peripheral portion of the latter, and these cutouts 42 are open towards the peripheral surface of the dial 41.
    These cutouts 42 are provided in the same number as the plurality of recesses 33 and in accordance with the arrangement of the recesses 33. Thus, as illustrated in FIG. 2, the two recesses 33 are spaced from each other by 180 degrees in the circumferential direction of the dial 41. Each cutout 42 is shaped to a size large enough to accommodate the pair of adjacent mating protrusions 35. to one another forming the slot G and that are covered, as shown in fig. 3, the pair of first recess portions 33a and the third recess portion 33c.
    The dial 41 is mounted to the casing ring 31, each cutout 42 being in engagement with the pair of coupling projections 35 forming the slot G. This assembly can be performed by pressing the dial 41 downwards. above the movement 21, the pair of coupling projections 35 forming slots G and cutouts 42 of the dial 41 held in position relative to the movement 21 to which the solar cell panel 25 and the casing ring 31 are attached.
    Consequently, the coupling projections 35, adjacent to each other forming the slot G, are forced slightly into each cutout 42 undergoing an elastic deformation so as to reduce the gap G, and, as illustrated in FIG. fig. 3, etc., the rounded projections 36 are engaged with the cutouts 42, i.e., brought into intimate contact with the mutually parallel edges of the cutouts 42, and at the same time the rounded projections 37 are taken with the cutout 42, that is, brought into intimate contact with the depth edges of the cutouts 42 extending between the mutually parallel edges. In addition, during the maintenance of this state of intimate contact, the rear surface of the dial 41 abuts against the upper surface 31a of the casing ring 31, thus preventing the pressing operation to thus complete the mounting of the dial 41.
    Thanks to the arrangement of the rounded projections 36 and 37 on each coupling projection 35, it is possible to easily and reliably engage the lateral surface of the coupling projection 35 with the cut-out 42, allowing mount the dial 41 without causing any rattling. In addition, the rounded projection 36 may be provided at an arbitrary position within the width of the lateral surface of each coupling projection 35, so that a high degree of freedom can be obtained at this point. relating to the shaping (design) for the setting position of the dial 41 with respect to the cutouts 42 by virtue of the coupling projections 35.
    The proximal portions 35a of the coupling projections 35 are formed in a thicker manner than the higher parts themselves of the latter, and these proximal portions 35a are located below the upper surface 31a of the circle of Thus, when mounting the dial 41 by the aforementioned operation, it is not to be feared that the proximal portions 35a prevent the rear surface of the dial 41 from abutting the upper surface 31a of the casing ring 31.
    The dial 41 thus mounted is opposite to the rear surface of the cover glass 7, as shown in FIG. 1, and the peripheral portion of the dial 41 is covered by the panel cover 4b. Since the dial 41 is transparent, when natural or artificial light transmitted through the cover glass 7 and the dial 41 between the solar cell panel 25, the solar cell of this solar cell panel 25 undergoes a photoelectric conversion and generates Energy. Thus, in the wristwatch 1, the energy thus generated is accumulated in a secondary cell where a capacitor, and it is possible to cause the movement 21 with this electrical energy.
    In the wristwatch 1 constructed as described above, the pair of coupling projections 35 protrude upwardly from the bottom of each recess 33 provided in the casing ring 31, as described above, and the proximal portion 35a of each coupling projection 35 is located below the upper surface 31a of the casing ring 31. Thus, the total length L of each coupling projection 35 (see Figs 4 and 5) increases depending on the depth D1 of the recesses 33, and the coupling projections 35 can easily undergo an elastic deformation to reduce the slot G.
    As a result, the pair of coupling seams 35 can be easily engaged with each cutout 42 of the dial 41. Therefore, the dial 41 covering the solar cell panel 25 attached to the movement 21 can be easily mounted to casing ring 31.
    As described above, the coupling projections 35 to which the dial 41 is mounted have substantially a quadratic prism configuration, so that the cross sectional area of the latter is larger (larger) than that compared in case the coupling projections have a columnar configuration. Thus, the elastic force by which the dial 41 is engaged with the cutouts 42 is increased without widening the thickness of the coupling projections 35 in their entirety, so that it is possible to mount the dial 41 without allowing it is unintentionally / inadvertently detached from the coupling projections 35.
    However, since the total length L of the coupling projections 35 is large, as described above, so that it is possible to avoid the dial 41 such an excessively large elastic force that it will cause an undulating deformation of the dial 41. Therefore, it is possible to prevent the generation of a problem when the transparent dial 41 is corrugated; that is to say, it is possible to avoid a state in which the reflection of light differs to different parts of the dial 41, which would thus easily make visible the wavy state of the dial 41, thereby impairing the external appearance of the wristwatch 1.
    In addition, in order to increase the cross sectional area of the coupling projections 35, it is not necessary to particularly deepen the cutouts 42 of the dial 41 compared to the case in which the protrusions of FIG. coupling 35 are formed in a thick columnar configuration. Therefore, the inside diameter of the panel cover 4b covering the peripheral portion of the dial 41 is not reduced and, therefore, it is not necessary to increase the internal diameter of the middleband, so that the size of the wristwatch 1 is not increased. In addition, as described above, the internal diameter of the panel cover 4b is not reduced, so that it is not necessary to fear a reduction in the actual display area of the dial 41.
    As described above, the proximal portions 35a of the coupling projections 35, engaged with the cutouts 42 of the dial 41 during the maintenance of the elastically deformed state, are shaped so that their thickness increases gradually towards the Also, the bottoms of the recesses 33 and the peripheral surfaces of the proximal portions 35a are continuous with each other without forming any wedge between them, so that stresses are not easily concentrated on the proximal portions. 35a. Therefore, it is possible to reduce the fear of crack formation in the proximal portions 35a by an external force such as a vibration applied to the wristwatch 1. Similarly, the portions of the coupling projections 35 to above the proximal portions 35a and the peripheral surfaces of the proximal portions 35a are also continuous with each other without producing any wedge between the latter, so that in this respect too, the stresses are not easily concentrated on the proximal portions. 35a. Thus, it is possible to reliably maintain the state in which the dial 41 is mounted to the casing ring 31.
    The portion of the dial 41 at the periphery of the cutouts 42, mounted to the casing ring 31, is in contact with the upper surface 31a of the casing ring 31 and covers the recesses 33; the recesses 33 are open in the outer peripheral surface of the casing ring 31.
    Thus, when it is necessary to detach the dial 41 for maintenance, it is possible to easily insert a tool, such as a tweezers (not shown) to detach the dial 41, in parts 33a recesses 33 from the outside of the casing ring 31. Therefore, it is possible to arrange the tool on the rear side of the dial 41, and then detach the dial 41, engaged with the projections coupling 35 of the casing ring 31,by removing necessarily by the tool. In addition, it is possible to perform this forced removal at a position near the cutouts 42 in engagement with the coupling projections 35. In addition, as described above, the total length L of the coupling projections 35 is large ( large), and they can easily undergo elastic deformation, so that no excessive operational force is required for forced removal. Thus, the dial 41 can be detached relatively easily.
    FIG. 7 shows the second embodiment of the present invention. With the exception of the points described below, the wristwatch of the second embodiment is the same as that of the first embodiment including the non-illustrated construction in FIG. 7. Thus, the components that are the same as those of the first embodiment are indicated by the same reference signs, and their description will be omitted.
    In the second embodiment, the depth D2 of the first recess portion 33a is larger (larger) than the depth D1 of the second recess portion 33b.
    Except for the above-mentioned feature, it has the same construction as the first embodiment. Thus, in the second embodiment, the same effect as that of the first embodiment is obtained for the same reason as that declared with reference to the first embodiment, making it possible to solve the problem to be solved by the present invention. Thus, it is possible to provide a wristwatch in which the engagement of the cutouts 42 of the dial 41 with the coupling projections 35 of the casing ring 31 and the attachment / detachment of the dial 41 causing the release of taking can be easily done.
    In addition, since the depth D2 of the pair of the first recess portions 33a is large (large), it is possible to insert the tool, for the detachment of the dial 41 more easily in the first parts of recess 33a when detaching the dial 41.
    FIG. 8 shows the third embodiment of the present invention. With the exception of the points described below, the wristwatch of the third embodiment has the same construction as that of the first embodiment including the non-illustrated construction in FIG. 8. Thus, the components that are the same as those of the first embodiment are indicated by the same reference signs, and their description will be omitted.
    In the third embodiment, the width W1 of the pair of first recess portion 33a is larger (larger) than the width W2 of the second recess portion 33b. At the same time, the groove side surfaces 35d of the first recess portions 33a opposite the proximal portions 35a of the mating protrusions 35 are shaped to be substantially at right angles to the bottom surfaces of the first parts of the housing. recess 33a. The grooved side surfaces 35d may also be formed as continuous curved surfaces with the bottom surfaces of the first recess portions 33a without forming any wedge therebetween.
    Except for the points described above, it has the same construction as the first embodiment. Thus, in the third embodiment, the same effect as that of the first embodiment is obtained for the same reason as declared with reference to the first embodiment, making it possible to solve the problem to be solved by the present invention. Thus, it is possible to provide a wristwatch in which the engagement of the cutouts 42 of the dial 41 with the coupling projections 35 of the casing ring 31 and the attachment / detachment of the dial 41 causing the release of taking can be easily done.
    In addition, in the third embodiment, since the width W1 of the first recess portions 33a is large (large), it is possible to use a tool with a large width as a tool for detaching the dial 41. Thus, when detaching the dial 41, it is possible to necessarily remove the dial 41 while removing a concentration of the removal force at a portion on the rear surface of the dial 41.
    FIG. 9 shows the fourth embodiment of the present invention. With the exception of the points described below, the wristwatch of the fourth embodiment has the same construction as that of the third embodiment including the non-illustrated construction in FIG. 9. Thus, the components which are the same as those of the third embodiment are indicated by the same reference signs, and their description will be omitted.
    In the fourth embodiment, in a section made in the axial direction of the coupling projections 35, the peripheral surfaces of the proximal portions 35a of the pair of coupling projections 35 adjacent to each other forming slot G, are formed by bevels (inclined surfaces) 35e connecting the portions of the coupling projections 35 above the proximal portions 35a with the bottom surface of the recess 33. Therefore, the bottom surface of the recess 33 and the peripheral surfaces of the proximal portions 35a are continuous with one another at an obtuse angle, and at the same time the peripheral surfaces of the proximal portions 35a and the portions of the mating projections 35 above. proximal portions 35a are continuous with one another at an obtuse angle; nevertheless, this embodiment is the same as the third embodiment in that the proximal portions 35a are shaped so that their thickness gradually increases towards the bottom of the recess 33.
    Except for the points described above, it has the same construction as the third embodiment. Thus, in the fourth embodiment, the same effect as that of the third embodiment is obtained for the same reason as that declared with reference to the third embodiment, thereby solving the problem to be solved by the present invention. Thus, it is possible to provide a wristwatch in which the engagement of the cutouts 42 of the dial 41 with the coupling projections 35 of the casing ring 31 and the attachment / detachment of the dial 41 causing the release of taking can be easily done.
    The present invention is not limited to the aforementioned embodiment. For example, in the embodiments, it is possible to use a light emitting panel instead of the solar cell panel. As a light emitting panel, a panel which consists, for example, of electroluminescence can be used appropriately, and this light emitting panel performs light emission by electrical energy supplied by the secondary cell etc. . included (enclosed) in the outer structure of the watch. In the case where the invention is thus implemented, the light emitting panel emits light by electricity supplied to the latter, and it is possible to perform a backlight on the display plate by this light emitting panel, so that it is possible to obtain a complementary improvement as regards the visibility of the display of time (time), etc. In addition, except for a wristwatch, the present invention may also be applied to a pocket watch.
    权利要求:
    Claims (9)
    [1]
    1. Watch (1), comprising:a movement (21);a panel (25) attached to the movement (21);a casing ring (31) attached to a peripheral part of the movement (21), the casing ring (31) being provided, at a plurality of positions thereof, with recesses (33) respectively open towards the upper surface (31a) and the outer peripheral surface of the casing ring (31), with a pair of coupling projections (35) having a slot (G) therebetween, which are capable of elastic deformation and which elevating upwardly of the casing ring (31) from the bottom of each recess (33), the proximal portions of the coupling projections (35) lying below said upper surface (31a); anda display plate (41) which has cut-outs (42) at a plurality of peripheral positions thereof and which is arranged to cover the panel (25), each pair of coupling projections (35) being taken with the edge of one of the cutouts (42) to join the display plate (41) to the casing ring (31), the parts of the display plate at the edges of the cutouts (42) covering the recesses (33).
    [2]
    2. Watch according to claim 1, wherein the proximal portions of the coupling projections (35) are shaped so that their cross-section increases gradually as one approaches the bottom of the corresponding recess (33).
    [3]
    3. Watch according to claim 2, wherein, in longitudinal section of the coupling projections (35), the peripheral surfaces of the proximal portions of the coupling projections (35) are arcuate connecting the bottoms of the recesses (33). ) to the parts that the coupling projections (35) have above their proximal parts.
    [4]
    4. Watch according to one of claims 1 to 3, wherein the coupling projections (35) have substantially the configuration of a quadratic prism.
    [5]
    5. Watch according to one of claims 1 to 4, wherein each recess (33) consists of several recess portions (33a, 33b, 33c, 33d) which have the same depth.
    [6]
    The watch according to claim 4, wherein each recess (33) has a pair of mutually parallel first recess portions (33a), a second recess portion (33b) and a third recess portion (33c), the proximal portion of each mating protrusion having a first side surface, located on the side opposite the slot (G), and a second side surface, located on the slot side (G), each first recess portion (33a ) having a lateral surface formed by one of the first side surfaces, each first recess portion (33a) having a first and a second end, the first end of each first recess portion being open in the outer peripheral surface of the casing ring, the second recess portion (33b) having lateral surfaces formed by the second side surfaces, the second recess portion (3 3b) having first and second ends, the first end of the second recess portion being open in the outer peripheral surface of the casing ring, the second recess portion (33b) forming the lower portion of the slot ( G), the third recess portion (33c) connecting the second ends of the first recess portions (33a) and the second recess portion (33b) to each other, the first recess portions (33a). being deeper than the second recess portion (33b).
    [7]
    The watch according to one of claims 4 to 6, wherein each coupling projection (35) is provided with a rounded projection (36) which extends parallel to the longitudinal direction of the coupling projection (35). ) and which is provided at a side surface of the coupling projection (35), namely at the side surface lying on the opposite side to the slot (G), the round projection (36) being taken with the edge of the cutout (42).
    [8]
    8. Watch according to one of claims 1 to 7, wherein the panel (25) is a photovoltaic panel provided for generating electrical energy by photoelectric conversion.
    [9]
    9. Watch according to one of claims 1 to 7, wherein the panel (25) is a light emitting panel which is intended to emit light when it is supplied with electricity.
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    同族专利:
    公开号 | 公开日
    JP2011196726A|2011-10-06|
    CN102193487A|2011-09-21|
    US8325565B2|2012-12-04|
    US20110228645A1|2011-09-22|
    CH702864A2|2011-09-30|
    CN102193487B|2014-10-29|
    JP5462038B2|2014-04-02|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2010061637A|JP5462038B2|2010-03-17|2010-03-17|clock|
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