Case and timepiece

The wristwatch case design addresses damage and appearance issues by using a fixed and movable member structure with dowels to secure exterior components, providing shock absorption and improved aesthetics.

JP2026002969APending Publication Date: 2026-01-08CASIO COMPUTER CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
JP2025178703
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-10-23
Publication Date
2026-01-08

AI Technical Summary

Technical Problem

Wristwatch cases with exterior members made of brittle materials suffer from direct impact transmission to the case body, causing damage, and visible screws detract from appearance and design.

Method used

A wristwatch case design featuring a case body with a side member comprising a fixed and movable member, using positioning and dowels to secure exterior components, and decorative members with movable elements for enhanced shock absorption and aesthetics.

Benefits of technology

The design effectively absorbs shock and enhances the case's decorativeness and design by hiding screws and reducing direct impact on the case body.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2026002969000001_ABST
    Figure 2026002969000001_ABST
Patent Text Reader

Abstract

To provide a case capable of buffering an impact and enhancing decorativeness and designability, and a timepiece including the same.SOLUTION: The game machine includes a case body 6 and a decorative member 12 which is a side surface member provided on the side surface of the case body 6, and the decorative member 12 includes a fixed member 30 fixed to the side surface of the case body 6 and a movable member 31 attached to the fixed member 30 movably in the vertical direction. Therefore, when the decorative member 12 receives an impact from above, the movable member 31 is moved by the impact, so that the impact received by the decorative member 12 from above can be buffered. In addition, since it is not necessary to screw the decorative member 12 to the side surface of the case main body 6, it is possible to improve decorativeness and designability.SELECTED DRAWING: Figure 19
Need to check novelty before this filing date? Find Prior Art

Description

[Technical Field]

[0001] The present invention relates to a case for use in an electronic device such as a wristwatch, and a timepiece equipped with the case. [Background technology]

[0002] For example, a known wristwatch case has a structure in which a decorative exterior member is attached directly to the top surface of the case body with multiple screws, as described in Patent Document 1. In this case, the exterior member is made of a soft or brittle material. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-185589 Summary of the Invention [Problem to be solved by the invention]

[0004] In such wristwatch cases, the exterior member is attached directly to the top of the case body with screws. Therefore, if the exterior member is made of a brittle material, when the exterior member receives an external impact, the impact is transmitted directly to the case body, causing adverse effects such as damage to the module inside the case body.

[0005] Furthermore, in such wristwatch cases, the exterior components are attached to the case body with multiple screws, which means that the multiple screws, along with the exterior components, are visible from the outside, which is undesirable in terms of appearance and design.

[0006] The problem to be solved by this invention is to provide a case that can absorb shock and also has enhanced decorativeness and design, and a timepiece equipped with the case. [Means for solving the problem]

[0007] This invention is a case comprising a case body and a side member provided on a side of the case body, wherein the side member comprises a fixed member fixed to the side of the case body and a movable member attached to the fixed member so as to be movable in the vertical direction. [Effects of the Invention]

[0008] According to this invention, it is possible to absorb shock and also to enhance decorativeness and design. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is an enlarged perspective view showing an embodiment of a wristwatch to which the present invention is applied. [Figure 2] FIG. 2 is an enlarged side view of the wristwatch shown in FIG. 1, seen from the 3 o'clock direction. [Figure 3] 2 is an exploded perspective view showing the state in which an upper exterior member and a positioning member are attached to the case body of the wristwatch case shown in FIG. 1. FIG. [Figure 4] 3 is an exploded side view showing the state in which a band exterior member is attached to a band attachment protrusion on the case body in the wristwatch case shown in FIG. 2. FIG. [Figure 5] 4 is an enlarged rear view of the upper surface exterior member and the positioning member shown in FIG. 3, viewed from the rear surface side. [Figure 6] FIG. 6 is an enlarged perspective view of the top exterior member shown in FIG. 5, viewed from the back side. [Figure 7] 4A and 4B show the positioning member shown in FIG. 3, in which FIG. 4A is an enlarged perspective view thereof, and FIG. 4B is an enlarged perspective view thereof as seen from the rear side. [Figure 8] 2 is an enlarged cross-sectional view of the essential parts of the wristwatch case shown in FIG. 1, taken along the line AA, with the band exterior member removed. [Figure 9] 6 is an enlarged view showing part A of the upper surface exterior member and the positioning member shown in FIG. 5. FIG. [Figure 10]2 is an enlarged plan view showing the wristwatch case shown in FIG. 1 with the top exterior member removed. FIG. [Figure 11] 5A and 5B show the band exterior member shown in FIG. 4, in which FIG. 5A is an enlarged perspective view thereof, and FIG. 5B is an enlarged perspective view thereof as seen from the rear side. [Figure 12] 11 is an enlarged view showing part B of the watch case shown in FIG. 10. [Figure 13] 2 is an enlarged rear view of the essential parts of the band attachment portion of the wristwatch case shown in FIG. 1, seen from the rear side. [Figure 14] 2 is an enlarged perspective view showing the state in which a band exterior member is attached to a band attachment protrusion on the case body with a screw member in the wristwatch case shown in FIG. 1. FIG. [Figure 15] 2 is an enlarged cross-sectional view showing a main part of the wristwatch case shown in FIG. 1 as viewed from the arrow BB. [Figure 16] FIG. 15 is an enlarged perspective view showing the screw member shown in FIG. 14. [Figure 17] FIG. 4 is an enlarged perspective view showing the case body of the wristwatch case shown in FIG. 3. [Figure 18] 4A and 4B show the decorative member of the watch case shown in FIG. 3, where FIG. 4A is an enlarged perspective view of the decorative member seen from the outside, and FIG. 4B is an enlarged perspective view of the decorative member seen from the inside. [Figure 19] FIG. 19 is an exploded perspective view of the decorative member shown in FIG. 18. [Figure 20] 19A and 19B show the decorative member shown in FIG. 19, where (a) is an enlarged oblique view showing the state in which a spring member is placed on top of a pair of first decorative parts of the fixed member, and (b) is an enlarged oblique view showing the spring member of (a). [Figure 21] 19 shows the decorative member shown in FIG. 18, where (a) is an enlarged front view, (b) is an enlarged cross-sectional view of the state in which the movable member is pushed up by the spring force of the spring member as viewed from the CC arrow in (a), and (c) is an enlarged cross-sectional view of the state in which the movable member is pushed down against the spring force of the spring member. [Figure 22] 18 is an exploded perspective view showing a state in which a side exterior member is attached to a side surface of the case body shown in FIG. 17. FIG. [Figure 23] 23 shows the case body and side exterior members shown in FIG. 22, where (a) is an enlarged perspective view showing the inner surface of the side exterior member, and (b) is an enlarged plan view of the case body as seen from above. DETAILED DESCRIPTION OF THE INVENTION

[0010] An embodiment of a wristwatch to which the present invention is applied will now be described with reference to FIGS. As shown in Figures 1 and 2, this wristwatch has a wristwatch case 1. Band attachment sections 2, to which a watch band (not shown) is attached, are provided on the 12 o'clock and 6 o'clock sides of this wristwatch case 1. Switch buttons 3 are provided on the 2 o'clock, 4 o'clock, 8 o'clock, and 10 o'clock sides of this wristwatch case 1.

[0011] Furthermore, as shown in Fig. 1, a watch crystal 4 is provided at the upper opening of the watch case 1. As shown in Fig. 2, a back cover 5 is attached to the bottom of the watch case 1 via a waterproof ring 5a (see Fig. 15). Furthermore, a watch module (not shown) is provided inside the watch case 1. Although not shown, this watch module includes various components necessary for timepiece functions, such as a watch movement that moves the hands, a display that displays information such as the time, date, and day of the week, and circuits that drive these components.

[0012] As shown in Figures 3 and 4, this wristwatch case 1 includes a case main body 6. A top exterior member 7, which is a first exterior member, is positioned on top of this case main body 6 by a positioning member 8. Band attachment protrusions 6a, which are attachment protrusions, are provided on the 12 o'clock and 6 o'clock sides of this case main body 6, and band exterior members 10, which are a second exterior member, are respectively disposed on these band attachment protrusions 6a. In this case, the band attachment protrusions 6a and the band exterior member 10 form the band attachment part 2.

[0013] As shown in Figs. 1 to 4, side exterior members 11, which are third side surface members, are disposed on each side surface of the 3 o'clock and 9 o'clock sides of the case main body 6, and decorative members 12 (side surface members), which are first and second side surface members, are disposed on both sides of each side exterior member 11 on the side surface of the case main body 6. In this case, the case main body 6 is formed from metal or hard synthetic resin. The top exterior member 7 is preferably formed from a hard, expensive, and highly decorative metal such as a cobalt-chromium alloy, but is not limited to this and may also be formed from a brittle material such as ceramics or jewels.

[0014] Furthermore, the positioning member 8 is formed from a material softer than the top exterior member 7, for example, a highly rigid synthetic resin such as polyamide resin. The band exterior member 10, side exterior members 11, and decorative members 12 are preferably formed from a highly hard and decorative metal such as a titanium alloy, but are not limited to this. They may also be formed from brittle materials such as ceramics or gemstones. In this case, the top exterior member 7, band exterior member 10, side exterior members 11, and decorative members 12 are surface-finished to enhance their decorativeness. This surface finish may be a hairline finish, a matte finish, a mirror finish, or the like.

[0015] As shown in Fig. 3, the top exterior member 7 is disposed on top of the case main body 6 to cover it, and is formed in the same roughly rectangular frame shape as the top of the case main body 6. As shown in Figs. 5 and 6, on the underside of the 12 o'clock and 6 o'clock sides of this top exterior member 7, connecting recesses 13, which serve as connecting portions, are provided so as to be open on the bottom side (top side in Fig. 6). As a result, the connecting recesses 13 are provided on the top exterior member 7 so as not to be visible from above. Inside each of these connecting recesses 13, engaging hooks 14 are provided facing each other in the 12 o'clock and 6 o'clock directions of the top exterior member 7.

[0016] 5 and 7, the positioning member 8 is used to position the top surface exterior member 7 on the top of the case main body 6, and is configured to be inserted from below into the connecting recess 13 of the top surface exterior member 7 and connected to the top surface exterior member 7. That is, the positioning member 8 includes a rising portion 15 which is a first positioning portion that is placed inside the connecting recess 13 of the top surface exterior member 7, and a flat portion 16 which is a second positioning portion that is placed on the band attachment protrusion 6a of the case main body 6.

[0017] As shown in Figures 3 and 5, the rising portion 15 is arranged in the connecting recess 13 of the top surface exterior member 7 and is configured so as not to be visible from the outside. As shown in Figures 7 and 8, this rising portion 15 has a locking recess 17 that engages with an engaging hook 14 provided in the connecting recess 13 of the top surface exterior member 7 to regulate the position of the top surface exterior member 7 in the up-down direction, which is the front-to-back direction.

[0018] 7 and 9, the rising portion 15 is provided with first dowels 18, which are first restricting protrusions that restrict the position of the top surface exterior member 7 in the 3:09 o'clock direction. The first dowels 18 are provided on both side surfaces of the rising portion 15 in the 3:09 o'clock direction and are configured to abut against the inner surface of the connecting recess 13 in the 3:09 o'clock direction, thereby restricting the position of the top surface exterior member 7 in the 3:09 o'clock direction.

[0019] 5 and 7(b), the rising portion 15 is provided with second dowels 20, which are second restricting protrusions that restrict the position of the top surface exterior member 7 in the 12:06 o'clock direction. A plurality of second dowels 20 are provided on the inner surface of the rising portion, which faces the outer peripheral surface of the case main body 6. When the rising portion 15 is positioned within the connecting recess 13 and in the state shown in FIG. 8 where the rising portion 15 is positioned on the outer peripheral surface of the case main body 6 above the band attachment protrusion 6a of the case main body 6, the second dowels 20 are configured to abut against the outer peripheral surface of the case main body 6 and restrict the position of the top surface exterior member 7 in the 12:06 o'clock direction.

[0020] As a result, as shown in Figures 5 to 9, the rising portion 15 is inserted from below into the connecting recess 13 of the top exterior member 7, and the engaging hook 14 in the connecting recess 13 engages with the locking recess 17 of the rising portion 15, the first dowel 18 of the rising portion 15 abuts against the inner surface of the connecting recess 13 in the 3 o'clock and 9 o'clock direction, and the second dowel 20 of the rising portion 15 abuts against the outer peripheral surface of the case main body 6, thereby regulating the position of the top exterior member 7 relative to the case main body 6 in the three-dimensional directions of the up and down directions, the 3 o'clock and 9 o'clock directions, and the 12 o'clock and 6 o'clock directions.

[0021] 10, 11, and 13, the band exterior member 10 is placed to cover the band mounting protrusion 6a of the case body 6. This band exterior member 10 includes a cover main body 21 placed on the upper surface of the band mounting protrusion 6a of the case body 6, and a pair of cover side walls 22 that serve as second restriction recesses provided on both sides of the cover main body 21 and positioned on both sides of the band mounting protrusion 6a.

[0022] As shown in Fig. 15, cover body 21 is configured so that, when placed on the upper surface of band attachment protrusion 6a, flat plate portion 16 of positioning member 8 is sandwiched onto band attachment protrusion 6a. As shown in Figs. 10 to 12, an edge portion of cover body 21 on the case body 6 side is provided with cutout portion 23, which is a first restricting recess, in which rising portion 15 of positioning member 8 is placed. As a result, cover body 21 is configured so that rising portion 15 is covered and cannot be seen from the outside by placing rising portion 15 inside cutout portion 23.

[0023] 7 and 10 to 12, the rising portion 15 is provided with third dowels 24, which are third restricting protrusions that abut against the inner surfaces on both sides in the 3:09 o'clock direction within the cutout portion 23 of the band exterior member 10, and fourth dowels 25, which are fourth restricting protrusions that abut against the inner surface on the 12:06 o'clock direction within the cutout portion 23. The third dowels 24 are provided on both sides in the 3:09 o'clock direction of the rising portion 15, and multiple fourth dowels 25 are provided on the outer surface of the rising portion 15 located on the opposite side from the case body 6 in the 12:06 o'clock direction.

[0024] 7 and 10-12, the band exterior member 10 is configured so that the third dowel 24 of the rising portion 15 abuts against the inner surfaces on both sides in the 3:00 and 9:00 direction within the cutout portion 23 of the cover main body 21, thereby restricting the position of the positioning member 8 in the 3:00 and 9:00 direction. Also, this band exterior member 10 is configured so that the fourth dowel 25 of the rising portion 15 abuts against the inner surfaces in the 12:00 and 6:00 direction within the cutout portion 23 of the cover main body 21, thereby restricting the position of the positioning member 8 in the 12:00 and 6:00 direction.

[0025] 10 to 13, the pair of cover side walls 22 of the band exterior member 10 regulates the position of the band exterior member 10 in the 3 o'clock and 9 o'clock directions. That is, when the cover main body 21 is placed on the band mounting protrusion 6a of the case main body 6 with the flat plate portion 16 of the positioning member 8 sandwiched therebetween, the pair of cover side walls 22 are configured to be positioned on both sides of the band mounting protrusion 6a and regulate the position of the band exterior member 10 in the 3 o'clock and 9 o'clock directions relative to the band mounting protrusion 6a.

[0026] As a result, as shown in Figures 10 to 13 and 15, when the cover main body 21 is placed on the band mounting protrusion 6a with the flat plate portion 16 of the positioning member 8 sandwiched therebetween and the pair of cover side wall portions 22 are placed on both sides of the band mounting protrusion 6a to regulate the position in the 3 o'clock and 9 o'clock directions, the fourth dowel 25 of the rising portion 15 of the positioning member 8 abuts against the outer peripheral surface of the case main body 6, regulating the position of the positioning member 8 in the 12 o'clock and 6 o'clock directions relative to the band mounting protrusion 6a.

[0027] 14 and 15, this band exterior member 10 is configured to sandwich the flat plate portion 16 of the positioning member 8 between it and the band attachment protrusion 6a of the case main body 6, and to be attached and fixed to the band attachment protrusion 6a with a plurality of screw members 26. As shown in FIGS. 15 and 16, each of the plurality of screw members 26 has a decorative head 26a disposed inside the band exterior member 10, a threaded portion 26b that screws into the band attachment protrusion 6a through the screw insertion portion 16a provided in the flat plate portion 16, and a screwdriver groove 26c provided at the tip of the threaded portion 26b.

[0028] In this case, as shown in Figures 11 and 15, the band exterior member 10 is provided with countersunk holes 27 in two locations in the 3:00 and 9:00 o'clock directions, into which the decorative heads 26a of the screw members 26 are to be placed. These countersunk holes 27 include a large-diameter hole portion into which the decorative heads 26a are to be placed, and a small-diameter hole portion into which the threaded portions 26b are to be inserted. As shown in Figure 7, the screw insertion portions 16a provided in the flat plate portion 16 of the positioning member 8 are semicircular cutout portions into which the threaded portions 26b are to be inserted, and are provided on both sides of the flat plate portion 16 in the 3:00 and 9:00 o'clock directions, coaxially corresponding to the countersunk holes 27.

[0029] 3, 15, and 17, the band mounting projection 6a is provided with threaded holes 6b into which the threaded portions 26b are screwed. These threaded holes 6b are provided on both sides of the band mounting projection 6a in the 3 o'clock and 9 o'clock directions, coaxially corresponding to the countersunk holes 27 in the band exterior member 10 and the screw insertion portions 16a in the flat plate portion 16. The threaded holes 6b are provided so as to penetrate the band mounting projection 6a from top to bottom.

[0030] As a result, as shown in Figures 14 and 15, when the screw portion 26b is inserted from above the band exterior member 10 through the countersunk hole 27 in the band exterior member 10 into the screw insertion portion 16a of the flat portion 16 of the positioning member 8 and reaches the screw hole 6b of the band mounting protrusion 6a, the tip of a screwdriver (neither shown) is inserted from the back side of the band mounting protrusion 6a into the screw hole 6b of the band mounting protrusion 6a and inserted into the screwdriver groove 26c provided at the tip of the screw portion 26b, and in this state the screw portion 26b is turned by the screwdriver.

[0031] That is, as shown in Figures 14 and 15, this screw member 26 is configured so that the tip of a screwdriver is inserted into the screw hole 6b of the band mounting protrusion 6a from the back side of the band mounting protrusion 6a, and when the tip of the screwdriver is inserted into the screwdriver groove 26c of the screw portion 26b, the screw portion 26b rotates and screws into the screw hole 6b of the band mounting protrusion 6a, thereby tightening it.

[0032] As shown in FIG. 15, when the screw portion 26b of the screw member 26 is screwed into the screw hole 6b of the band mounting projection 6a and tightened, the decorative head 26a is positioned within the large diameter hole portion of the countersunk hole 27 of the band exterior member 10, pressing the cover body 21 of the band exterior member 10 against the flat plate portion 16 of the positioning member 8, and this cover body 21 presses the flat plate portion 16 against the band mounting projection 6a.

[0033] As a result, as shown in Figure 15, when this band exterior member 10 is attached to the band mounting protrusion 6a with the screw members 26, with the pair of cover side wall portions 22 positioned in contact with both sides of the band mounting protrusion 6a and the position in the 3 o'clock and 9 o'clock directions being restricted, the flat plate portion 16 of the positioning member 8 is clamped and fixed onto the band mounting protrusion 6a.

[0034] 12 and 15, when the flat portion 16 of the positioning member 8 is clamped and fixed onto the band mounting protrusion 6a, the inner surface of the cutout portion 23 of the cover body 21 at the 12 o'clock and 9 o'clock direction is pressed against the fourth dowel 25 of the rising portion 15 of the positioning member 8, thereby restricting the position of the positioning member 8 at the 12 o'clock and 6 o'clock direction relative to the band mounting protrusion 6a, and positioning and fixing the positioning member 8 to the band mounting protrusion 6a.

[0035] For this reason, as shown in FIG. 12, this band exterior member 10 is configured so that the inner surfaces on both sides in the 3 o'clock and 6 o'clock direction of the cutout portion 23 of the cover main body 21 are pressed against third dowels 24 provided on both sides in the 3 o'clock and 9 o'clock direction of the rising portion 15, thereby regulating the position of the positioning member 8 in the 3 o'clock and 9 o'clock direction, positioning and fixing the positioning member 8 to the band mounting protrusion 6a, and this fixed positioning member 8 positions and fixes the top exterior member 7 to the top of the case main body 6.

[0036] Each of the multiple decorative members 12 provided on both sides of the case main body 6 at the 3 o'clock and 9 o'clock sides includes a fixed member 30 fixed to the side of the case main body 6, and a movable member 31 attached to this fixed member 30 so as to be movable in the vertical direction by an attachment shaft 28, which is an attachment member, as shown in Figures 17 to 21.

[0037] 17 to 21, the fixing member 30 includes a mating protrusion 33 that fits into a mating recess 32 provided on the side of the case body 6, and a pair of first decorative portions 34 that are provided on both sides of the mating protrusion 33 and are arranged on the side of the case body 6. In this case, the mating recesses 32 of the case body 6 are formed in a substantially rectangular recess shape that is long in the horizontal direction, and are provided in four locations on the 1 o'clock side, 5 o'clock side, 7 o'clock side, and 11 o'clock side of the case body 6.

[0038] 17 to 21, the fitting protrusion 33 is fitted into the fitting recess 32 and has a generally rectangular shape with approximately the same shape and size as the fitting recess 32, with each corner chamfered. When fitting into the fitting recess 32, the lower surface of the fitting protrusion 33 abuts against the lower surface of the fitting recess 32, and the side surface of the fitting protrusion 33 located on the band attachment protrusion 6a side of the case body 6 abuts against the side surface of the fitting recess 32, so that the fitting protrusion 33 is positioned and disposed within the fitting recess 32.

[0039] 17 and 18, the fixing member 30 is configured so that, with the fitting protrusion 33 positioned within the fitting recess 32, the inner surface of the fitting protrusion 33 on the case body 6 side is affixed with adhesive tape (not shown) to the inner surface of the fitting recess 32, thereby temporarily fixing the fixing member 30. Furthermore, with the fixing member 30 temporarily fixed with adhesive tape, the edge of one of the first decorative parts 34 located on the opposite side to the band attachment protrusion 6a is fixed to the side surface of the case body 6 by welding, such as laser welding.

[0040] 17 to 21, each of the pair of first decorative portions 34 is formed in a rectangular column shape whose vertical length is longer than that of the fitting protrusion 33, and whose upper and lower portions protrude above and below the fitting protrusion 33. Each of the pair of first decorative portions 34 is provided with first mounting holes 34a, to which the mounting shaft 28 is attached, on the same axis. In addition, a stepped recess 34b, which is one step lower, is provided at approximately half of the upper end of each of the pair of first decorative portions 34, on the case body 6 side.

[0041] 17 to 21, the movable member 31 includes a second decorative portion 35 disposed between the pair of first decorative portions 34, and third decorative portions 36 disposed above each of the pair of first decorative portions 34. The second decorative portion 35 is formed in a rectangular column shape with a vertical length longer than the pair of first decorative portions 34, with its lower portion at the same height as the pair of first decorative portions 34 and its upper portion protruding above the pair of first decorative portions 34. The second decorative portion 35 is provided with a second mounting hole 35a, through which the mounting shaft 28 is inserted, so that the second mounting hole 35a corresponds coaxially to each of the first mounting holes 34a of the pair of first decorative portions 34.

[0042] 18, 19, and 21, the second decorative part 35 is formed so that its length in the direction protruding outward from the case body 6 is longer than the pair of first decorative parts 34. As a result, when the second decorative part 35 is disposed between the pair of first decorative parts 34, it is configured to protrude from the pair of first decorative parts 34 toward the outside of the case body 6. In addition, the upper part of the second decorative part 35 is cut out at a location facing the outer peripheral surface of the case body 6, i.e., a location corresponding to the stepped recesses 34b of the pair of first decorative parts 34.

[0043] 18 to 21, the third decorative portion 36 is provided in a cutout portion at the top of the second decorative portion 35, and is arranged on the stepped recesses 34b at the upper ends of each of the pair of first decorative portions 34, and is configured to be arranged from these stepped recesses 34b to the outer peripheral surface, which is the side surface of the case body 6. In other words, the length of this third decorative portion 36 in the direction protruding outward from the case body 6 is formed to be approximately the same as the sum of the length of the stepped recesses 34b of the first decorative portion 34 in the direction protruding outward from the case body 6 and the length of the fitting protrusion 33 in the direction protruding outward from the case body 6.

[0044] In this case, as shown in Fig. 17, a first step surface 6c is provided along the outer periphery of the case body 6 at the boundary between the location where the crystal 4 is attached and the location corresponding to the band attachment protrusion 6a. As a result, the third decorative part 36 is configured so that when the fitting protrusion 33 of the fixing member 30 is fitted into the fitting recess 32 provided on the side of the case body 6, as shown in Figs. 20 and 21(b), the lower surface of the third decorative part 36 is positioned on the first step surface 6c provided on the outer periphery surface of the case body 6.

[0045] Furthermore, as shown in Figures 18 to 21, the length of this third decorative portion 36 in the direction along the outer peripheral surface, which is the side surface of the case main body 6, is formed to be the same length as the length of the pair of first decorative portions 34 in the arrangement direction along the outer peripheral surface of the case main body 6, that is, the length of the mating protrusion 33 in the direction along the outer peripheral surface of the case main body 6.

[0046] As a result, when the third decorative part 36 is positioned above the step recesses 34b at the upper ends of each of a pair of first decorative parts 34, as shown in Figures 18 and 19, it is positioned with a predetermined distance between the lower surface of the third decorative part 36 and the upper surface of the mating protrusion 33, and in this state, the inner surface of the third decorative part 36 located on the case main body 6 side is close to the outer peripheral surface of the case main body 6, so that the lower surface of the third decorative part 36 is positioned on the first step surface 6c of the case main body 6.

[0047] 18 to 21, the upper and lower parts of the pair of first decorative parts 34 are each provided with a decorative inclined surface 34c that narrows the area of ​​the outer end surface of the first decorative part 34a located opposite the case body 6, except for a portion corresponding to the stepped recess 34b at the upper end. Similarly, the upper and lower parts of the second decorative part 35 are provided with a decorative inclined surface 35b that is inclined at the same angle as the inclined surface 34c of the first decorative part 34. The upper part of the third decorative part is provided with a decorative inclined surface 36a that is continuous with the inclined surface 35b of the second decorative part 35.

[0048] In addition, the mounting shaft 28 that attaches the movable member 31 to the fixed member 30 of the decorative member 12 is configured to attach the movable member 31 to the fixed member 30 by inserting it from the first mounting hole 34a of one of the first decorative parts 34 through the second mounting hole 35a provided in the second decorative part 35 and into the first mounting hole 34a of the other first decorative part 34, with the second decorative part 35 of the movable member 31 positioned between a pair of first decorative parts 34 of the fixed member 30, as shown in Figures 18 to 21.

[0049] 19, the mounting shaft 28 has an outer diameter the same as the inner diameter of the first mounting hole 34a of the first decorative part 34, and one end is formed with a press-fit portion 28a with an outer diameter slightly larger than the inner diameter of the first mounting hole 34a. As a result, when the other end of the mounting shaft 28 opposite the press-fit portion 28a is inserted from the first mounting hole 34a of one first decorative part 34 through the second mounting hole 35a of the second decorative part 35 into the first mounting hole 34a of the other first decorative part 34, the press-fit portion 28a at the one end with the larger outer diameter is press-fitted into the first mounting hole 34a of one first decorative part 34 and fixed.

[0050] 19 and 21, the second mounting hole 35a of the second decorative part 35 is formed as an elongated hole whose vertical length is slightly longer than the first mounting hole 34a of the first decorative part 34. As a result, when the second decorative part 35 is disposed between the first decorative parts 34 of the fixed member 30 and the mounting shaft 28 is inserted into the second mounting hole 35a, the mounting shaft 28 moves vertically relative to the second decorative part 35 within the second mounting hole 35a of the second decorative part 35, so that the second decorative part 35 moves vertically together with the third decorative part 36.

[0051] 18 to 21, the decorative member 12 is equipped with a spring member 37, which is a biasing member. The spring member 37 is equipped with a flat spring body 38, a first spring portion 39, which is a first biasing portion, disposed on the side surface of one of the first decorative portions 34, and a second spring portion 40, which is a second biasing portion, which biases the third decorative portion 36 upward.

[0052] 19 to 21, the spring body 38 is an elongated, approximately rectangular flat plate, and is formed so that the length in the direction along the outer peripheral surface, which is the side surface of the case body 6, is the same as the length in the arrangement direction of the pair of first decorative parts 34, that is, the length in the direction along the outer peripheral surface of the case body 6 of the fitting protrusions 33. The length of this spring body 38 in the direction protruding outward from the case body 6 is approximately the same as the length of the third decorative part 36 in the direction protruding outward from the case body 6.

[0053] 19 to 21, the spring main body 38 is provided with a spring notch 38a. The length of the spring notch 38a in the arrangement direction of the pair of first decorative parts 34 is longer than the length between the pair of first decorative parts 34, and the length of the spring notch 38a in the direction protruding outward from the case main body 6 is longer than the length of the stepped recesses 34b at the upper ends of the pair of first decorative parts 34.

[0054] 19 to 21, the spring body 38 includes a pair of clamping portions 38b located on both sides of the spring notch portion 38a, and a connecting support portion 38c that is arranged to protrude from the pair of first decorative portions 34 toward the case body 6 and connects the pair of clamping portions 38b. The spring body 38 is configured so that the pair of clamping portions 38b are arranged on the stepped recesses 34b at the upper ends of the pair of first decorative portions 34 and are held by being sandwiched by the third decorative portion 36, and in this state the connecting support portion 38c protrudes from the pair of first decorative portions 34 toward the case body 6 and is arranged on the underside of the third decorative portion 36.

[0055] 17 to 21, the first spring portion 39 is a leaf spring that extends downward from one end of the spring body 38 along the side surface of one of the first decorative portions 34 located on the opposite side from the band mounting protrusion 6a. The lower portion of this first spring portion 39 is bent in an upward-facing direction. As a result, the first spring portion 39 is configured to bias the side surface of the side exterior member 11 located to the side of one of the first decorative portions 34 in a direction away from the one of the first decorative portions 34.

[0056] 17 to 21, the second spring portion 40 is a leaf spring portion, and two second spring portions 40 are provided in the spring notch portion 38a of the spring main body 38. The second spring portion 40 is disposed between the pair of first decorative portion 34 and third decorative portion 36, and is configured to urge the third decorative portion 36 upward. In other words, the movable member 31 is configured such that the third decorative portion 36 is pushed up together with the second decorative portion 35 by the spring force of the second spring portion 40 as the mounting shaft 28 moves relatively up and down within the second mounting hole 35a of the second decorative portion 35.

[0057] 22 and 23, the two side exterior members 11 arranged on each of the 3 o'clock and 9 o'clock sides of the case body 6 are configured to be arranged between a plurality of decorative members 12 provided on both sides of the 3 o'clock side of the case body 6 and on both sides of the 9 o'clock side of the case body 6. Each of these two side exterior members 11 is formed in a curved plate shape along the outer peripheral surface, which is the side of the case body 6.

[0058] In this case, as shown in Figures 22 and 23, the side exterior member 11 on the 3 o'clock side is positioned from above between two decorative members 12 provided on the 1 o'clock side and 5 o'clock side of the case main body 6, and is configured to be positioned and attached to the side surface on the 3 o'clock side of the case main body 6 by being elastically sandwiched by the first spring portion 39 of each spring member 37 provided on each of the two decorative members 12.

[0059] 22 and 23, the 9 o'clock side exterior member 11 is configured to be positioned from above between two decorative members 12 provided on the 7 o'clock and 11 o'clock sides of the case main body 6, similar to the 3 o'clock side exterior member 11, and is elastically sandwiched by the first spring portions 39 of each spring member 37 provided on each of the two decorative members 12, and is positioned and attached to the 9 o'clock side of the case main body 6.

[0060] 22 and 23, the side surface exterior member 11 on the 3 o'clock side has two switch notches 11a that are open at the bottom end and into which the switch buttons 3 provided on the 2 o'clock and 4 o'clock sides of the side surface of the case main body 6 are inserted. Similarly, the side surface exterior member 11 on the 9 o'clock side has two switch notches 11a that are open at the bottom end and into which the switch buttons 3 provided on the 8 o'clock and 10 o'clock sides of the side surface of the case main body 6 are inserted.

[0061] 22 and 23, the inner surfaces of these side exterior members 11 are provided with engaging protrusions 42 that engage from above with engaging recesses 41 provided on each side surface of the case body 6 on the 3 o'clock and 9 o'clock sides. In this case, a first step surface 6c is provided continuously on the outer periphery of the case body 6 located at the boundary between the location where the crystal 4 is attached and the location where the switch button 3 is attached. As a result, a second step surface 11b is provided on the inner surface of the side exterior member 11, which is positioned on the first step surface 6c of the case body 6.

[0062] 22 and 23, the engagement recess 41 is provided on the first step surface 6c of the case main body 6 and is open upward. The engagement protrusion 42 is provided to protrude downward on the lower surface of the second step surface 11b provided on the inner surface of the side surface exterior member 11. As a result, the side surface exterior member 11 is configured so that when the multiple switch buttons 3 of the case main body 6 are inserted into the multiple switch cutout portions 11a, respectively, and the second step surface 11b is positioned on the first step surface 6c of the case main body 6, the engagement protrusion 42 of the side surface exterior member 11 is inserted into and engaged with the engagement recess 41 of the case main body 6 from above, and is attached to the case main body 6 so as not to fall out to the bottom of the case main body 6.

[0063] 23(b), a first buffer member 43 is provided at the bottom of the engaging recess 41, against which the lower surface of the engaging protrusion 42 is pressed. This first buffer member 43 is divided into three and provided at the bottom of the engaging recess 41, but it may also be formed in the shape of a single sheet and provided across the entire bottom of the engaging recess 41. In addition, a second buffer member 44 is provided on the side surface of the engaging protrusion 42, against which the inner side surface inside the engaging recess 41 is pressed.

[0064] As a result, as shown in Figures 23(a) and 23(b), when the side exterior member 11 is attached to the case body 6 with the engaging protrusion 42 engaging with the engaging recess 41 of the case body 6, the lower surface of the engaging protrusion 42 is pressed against the first buffer member 43 provided on the bottom surface of the engaging recess 41, thereby preventing the engaging protrusion 42 from wobbling in the vertical direction relative to the engaging recess 41 and buffering the vertical movement of the engaging protrusion 42 relative to the engaging recess 41.

[0065] Furthermore, as shown in Figures 23(a) and 23(b), when this side exterior member 11 is attached to the case body 6 with the engaging protrusion 42 engaging with the engaging recess 41 of the case body 6, the second buffer member 44 provided on the side of the engaging protrusion 42 is pressed against the side surface within the engaging recess 41, thereby preventing the engaging protrusion 42 from wobbling in the 3 o'clock and 9 o'clock direction relative to the engaging recess 41 and buffering the engaging protrusion 42 from wobbling in the 3 o'clock and 9 o'clock direction relative to the engaging recess 41.

[0066] Next, the assembly of such a wristwatch case 1 will be described. In this case, the surfaces of the top exterior member 7, band exterior member 10, side exterior members 11, and decorative member 12 are individually finished in advance to have a hairline pattern, a matte finish, a mirror finish, etc. At this time, the decorative member 12 is disassembled into the fixed member 30 and the movable member 31, and the surfaces of the first decorative portion 34 of the disassembled fixed member 30, and the second decorative portion 35 and third decorative portion 36 of the movable member 31 are surface-finished.

[0067] Then, first, the decorative member 12 is assembled. In this case, a pair of clamping portions 38b located on both sides of the spring notch portion 38a in the spring body 38 of the spring member 37 are placed on the stepped recesses 34b at the upper ends of each of the pair of first decorative portions 34 of the fixing member 30. At this time, the first spring portion 39 provided at one end of the spring body 38 is placed along the side surface of one of the first decorative portions 34.

[0068] In this state, the second decorative portion 35 of the movable member 31 is placed between the pair of first decorative portions 34 of the fixed member 30, and the third decorative portion 36 of the movable member 31 is placed on the stepped recesses 34b at the upper ends of each of the pair of first decorative portions 34. At this time, the pair of clamping portions 38b of the spring member 37 are sandwiched between the stepped recesses 34b of the pair of first decorative portions 34 and the underside of the third decorative portion 36. In this state, the first mounting hole 34a of the pair of first decorative portions 34 and the second mounting hole 35a of the second decorative portion 35 are aligned coaxially, and the second decorative portion 35 is attached to the pair of first decorative portions 34 by the mounting shaft 28.

[0069] In this case, the other end of the mounting shaft 28 opposite the press-fit portion 28a at one end with a slightly larger outer diameter is inserted from the first mounting hole 34a of one of the first decorative parts 34 to the second mounting hole 35a of the second decorative part 35, and the other end of this inserted mounting shaft 28 is inserted into the first mounting hole 34a of the other first decorative part 34, and the press-fit portion 28a with the larger outer diameter is press-fitted into the first mounting hole 34a of one of the first decorative parts 34 to secure it in place. In this way, the mounting shaft 28 is attached to the pair of first decorative parts 34, and the second decorative part 35 is attached to the pair of first decorative parts 34 simply and reliably by this mounting shaft 28.

[0070] In this case, the second mounting hole 35a of the second decorative part 35 is formed as an elongated hole that is slightly longer in the vertical direction than the first mounting hole 34a of the first decorative part 34, so that the mounting shaft 28 can move relatively in the vertical direction within the second mounting hole 35a of the second decorative part 35. Therefore, with the second decorative part 35 of the movable member 31 positioned between the pair of first decorative parts 34 of the fixed member 30, the second decorative part 35 and the third decorative part 36 can move in the vertical direction.

[0071] At this time, the second spring portion 40 of the spring member 37 is pressed against the underside of the third decorative portion 36, so that the spring force of the pressed second spring portion 40 pushes up the third decorative portion 36, and the second decorative portion 35 is accordingly positioned in a pushed-up state. In this way, the decorative member 12 is assembled.

[0072] Then, the crystal 4 is fitted into the upper opening of the case body 6, and the decorative members 12 are attached to the 1 o'clock, 5 o'clock, 7 o'clock, and 11 o'clock sides of the side of the case body 6. At this time, the fitting protrusion 33 of the fixing member 30 of the decorative member 12 is fitted into the fitting recess 32 provided on the side of the case body 6. In this case, the lower surface of the fitting protrusion 33 is brought into contact with the lower surface of the fitting recess 32, and the side of the fitting protrusion 33 located on the band attachment protrusion 6a side of the case body 6 is brought into contact with the side surface of the fitting recess 32, so that the fitting protrusion 33 is positioned within the fitting recess 32 and fitted.

[0073] At this time, the inner surface of the fitting protrusion 33 on the case body 6 side is attached to the inner surface of the fitting recess 32 with adhesive tape (not shown) and temporarily fixed. In this state, the edge of one of the first decorative parts 34 located opposite the band attachment protrusion 6a is fixed to the side surface of the case body 6 by welding such as laser welding. This ensures that the fixing member 30 is securely and firmly fixed to the case body 6, and the decorative member 12 is attached to the side surface of the case body 6. In this state, the movable member 31 can move up and down against the spring force of the second spring part 40 of the spring member 37.

[0074] In this state, the first spring portions 39 of the multiple spring members 37 attached to the multiple decorative members 12 are positioned on the side of the first decorative portion 34 opposite the band attachment protrusion 6a. That is, of the first spring portions 39 of the multiple decorative members 12, the first spring portions 39 located on the 1 o'clock side and the 5 o'clock side of the case body 6 are positioned opposite each other on the 3 o'clock side of the case body 6. Similarly, the first spring portions 39 located on the 7 o'clock side and the 11 o'clock side of the case body 6 are positioned opposite each other on the 9 o'clock side of the case body 6.

[0075] Then, the side exterior members 11 are placed on the 3 o'clock and 9 o'clock side surfaces of the case main body 6. In this case, first, the side exterior members 11 are placed from above the case main body 6, sandwiched between the plurality of decorative members 12 provided on the side surfaces of the case main body 6. As a result, the side exterior members 11 are elastically sandwiched from both sides by the spring force of the first spring portions 39 of the spring members 37 provided on each of the plurality of decorative members 12.

[0076] That is, the side exterior member 11 arranged on the 3 o'clock side of the case body 6 is elastically sandwiched from both sides by the spring force of each of the first spring portions 39 arranged opposite each other on the 3 o'clock side of the case body 6. Similarly, the side exterior member 11 arranged on the 9 o'clock side of the case body 6 is elastically sandwiched from both sides by the spring force of each of the first spring portions 39 arranged opposite each other on the 9 o'clock side of the case body 6. For this reason, the side exterior member 11 can be easily and satisfactorily arranged between the plurality of decorative members 12.

[0077] When the side exterior member 11 is thus positioned between the multiple decorative members 12 from above the case main body 6, the multiple switch buttons 3 provided on the side of the case main body 6 are each inserted into the switch cutout portions 11a of the side exterior member 11, and the engaging protrusions 42 provided on the second step surface 11b of the side exterior member 11 are inserted from above and engage with the engaging recesses 41 provided on the first step surface 6c on the outer periphery of the case main body 6.

[0078] At this time, the lower surface of the engaging protrusion 42 is pressed against the first buffer member 43 provided on the bottom surface of the engaging recess 41, and the second buffer member 44 provided on the side surface of the engaging protrusion 42 is pressed against the side surface of the engaging recess 41. As a result, the engaging protrusion 42 is attached to the engaging recess 41 in a state where it is buffered by the first buffer member 43 and the second buffer member 44 without any rattling in the up and down directions and the 3 o'clock and 9 o'clock directions.

[0079] Therefore, the side surface exterior member 11 can be attached properly to the case body 6 without any rattle. At this time, the second step surface 11b provided on the inner surface of the side surface exterior member 11 is disposed so as to abut on the first step surface 6c of the case body 6. This allows the side surface exterior member 11 to be attached to the side surface of the case body 6 without falling off to the lower side.

[0080] Then, the top exterior member 7 is positioned on the top of the case main body 6 by the positioning member 8. In this case, the positioning member 8 is connected to the top exterior member 7 in advance. That is, the rising portions 15 of the positioning member 8 are inserted from below into the connecting recesses 13 provided on the underside of the top exterior member 7 on the 12 o'clock and 6 o'clock sides, respectively, and the engaging hooks 14 in the connecting recesses 13 are engaged with the locking recesses 17 of the rising portions 15. In this way, the positioning member 8 is connected to the top exterior member 7.

[0081] At this time, the engaging hooks 14 inside the connecting recess 13 engage with the locking recesses 17 of the rising portions 15, thereby restricting the vertical position of the top exterior member 7 relative to the positioning member 8. Also, at this time, the first dowels 18 provided on both side surfaces of the rising portions 15 at the 3 o'clock and 9 o'clock directions abut against the inner surfaces on both sides of the connecting recess 13, restricting the position of the top exterior member 7 in the 3 o'clock and 9 o'clock directions relative to the positioning member 8. In this state, the top exterior member 7 is placed on top of the case main body 6, and the flat portion 16 of the positioning member 8 is placed on the band attachment protrusions 6a of the case main body 6.

[0082] In this case, second dowels 20 provided on the inner surface in the 12 o'clock and 6 o'clock direction of rising portion 15 that faces the outer peripheral surface of case body 6 abut against the outer peripheral surface of case body 6, restricting the position of positioning member 8 in the 12 o'clock and 6 o'clock direction relative to case body 6. As a result, the position of top surface exterior member 7 in the three-dimensional directions of the up and down direction, the 3 o'clock and 9 o'clock directions, and the 12 o'clock and 6 o'clock directions relative to case body 6 is restricted by positioning member 8, and top surface exterior member 7 is positioned relative to case body 6.

[0083] Then, the band exterior member 10 is placed on the band mounting protrusion 6a of the case body 6. In this case, the cover main body 21 of the band exterior member 10 is placed on the band mounting protrusion 6a on which the flat plate portion 16 of the positioning member 8 is placed, and the pair of cover side walls 22 of the band exterior member 10 are placed on both sides of the band mounting protrusion 6a. At this time, the rising portion 15 of the positioning member 8 is placed inside the notch portion 23 of the cover main body 21.

[0084] As a result, the pair of cover side walls 22 abut on both sides of the band mounting protrusion 6a, restricting the position of the band exterior member 10 in the 3:09 o'clock direction. Additionally, the third dowel 24 of the rising portion 15 abuts on the inner surfaces of the cutout portion 23 of the cover main body 21 on both sides in the 3:09 o'clock direction, restricting the position of the rising portion 15 in the 3:09 o'clock direction relative to the band mounting protrusion 6a. At the same time, the fourth dowel 25 of the rising portion 15 abuts on the inner surface of the cutout portion 23 of the cover main body 21 in the 12:06 o'clock direction, restricting the position of the rising portion 15 in the 12:06 o'clock direction relative to the band mounting protrusion 6a.

[0085] As a result, the position of the band exterior member 10 relative to the band mounting projection 6a in three dimensions, namely the up-and-down direction, the 3:00 9:00 direction, and the 12:00 6:00 direction, is restricted, and the band exterior member 10 is positioned on the band mounting projection 6a. This restricts the position of the positioning member 8 relative to the case main body 6 in the 3:00 9:00 direction, and also restricts the position of the positioning member 8 relative to the case main body 6 in the 12:00 6:00 direction, thereby positioning the positioning member 8 on the case main body 6. In this state, the positioning member 8 is completely covered by the band exterior member 10 so that it cannot be seen from the outside.

[0086] The band exterior member 10 is then attached to the band mounting protrusion 6a with the screw member 26. At this time, because the band exterior member 10 is positioned on the band mounting protrusion 6a, the countersunk hole 27 of the band exterior member 10, the screw insertion portion 16a of the positioning member 8, and the screw hole 6b of the band mounting protrusion 6a are all coaxial. In this state, the screw portion 26b is inserted into the countersunk hole 27 of the band exterior member 10 from above the band exterior member 10, and then inserted into the screw insertion portion 16a of the flat plate portion 16 of the positioning member 8 until it reaches the screw hole 6b of the band mounting protrusion 6a.

[0087] In this state, the tip of a screwdriver (neither of which is shown) is inserted into the threaded hole 6b of the band mounting protrusion 6a from the back side of the band mounting protrusion 6a and into the screwdriver groove 26c provided at the tip of the threaded portion 26b. When the threaded portion 26b is turned with the screwdriver, the threaded portion 26b screws into the threaded hole 6b of the band mounting protrusion 6a and is tightened.

[0088] In this case, the decorative head 26a is positioned within the large diameter hole portion of the countersunk hole 27 of the band exterior member 10, and presses the cover body 21 of the band exterior member 10 against the flat plate portion 16 of the positioning member 8. As a result, the cover body 21 presses the flat plate portion 16 against the band mounting protrusion 6a, so that the band exterior member 10 is attached to the band mounting protrusion 6a, and the flat plate portion 16 of the positioning member 8 is clamped and fixed onto the band mounting protrusion 6a by the band exterior member 10. In this case, the decorative head 26a of the screw member 26 is exposed to the outside from the countersunk hole 27, and the decorative head 26a enhances the decorativeness and design.

[0089] At this time, the positioning member 8 is positioned and fixed to the band mounting protrusion 6a by the band exterior member 10, and the top surface exterior member 7 is positioned and fixed to the top of the case main body 6 by this fixed positioning member 8. In this case, the top surface exterior member 7, which is positioned and fixed to the top of the case main body 6, presses down on the multiple side surface exterior members 11 and multiple decorative members 12 arranged on the side of the case main body 6 from above.

[0090] As a result, the multiple side surface exterior members 11 are attached to the side surfaces of the case body 6 without slipping out upward. At this time, the lower surfaces of the engaging protrusions 42 of the side surface exterior members 11 are pressed against the first buffer members 43 provided on the bottom surface of the engaging recesses 41 of the case body 6, and the second buffer members 44 provided on the side surfaces of the engaging protrusions 42 are pressed against the side surfaces of the engaging recesses 41, so that the multiple side surface exterior members 11 are securely and favorably attached to the case body 6 without any rattle.

[0091] Furthermore, when the multiple decorative members 12 are pressed down by the top exterior member 7, the third decorative portion 36 of the movable member 31 of the decorative member 12 is elastically pressed down by the top exterior member 7 against the spring force of the second spring portion 40 of the spring member 37, so that the movable member 31 of the decorative member 12 is securely and securely attached to the case body 6 without any rattle. In this way, the wristwatch case 1 is assembled.

[0092] In this way, even though this wristwatch case 1 is divided into a top exterior member 7, a positioning member 8, a band exterior member 10, multiple side exterior members 11, and multiple decorative members 12, when the band exterior member 10 is attached to the band mounting protrusion 6a with the screw member 26, the positioning member 8 can be fixed to the case main body 6 by the band exterior member 10, and this positioning member 8 can fix the top exterior member 7 to the case main body 6, and this top exterior member 7 can press the multiple side exterior members 11 and multiple decorative members 12 against the case main body 6, so assembly can be done easily and efficiently.

[0093] Next, the operation of such a wristwatch will be described. When the top exterior member 7 of this wristwatch case 1 receives an impact from above, the impact is dispersed and cushioned by the positioning member 8. This reduces the impact's transmission to the case body 6, preventing the watch module (not shown) inside the case body 6 from being damaged or otherwise adversely affected by the impact, thereby achieving impact resistance.

[0094] In this case, when the top exterior member 7 is attached to the top of the case body 6, it presses down on the multiple side exterior members 11 and multiple decorative members 12 provided on the side of the case body, so when the top exterior member 7 receives an impact from above, the impact is buffered by the multiple side exterior members 11 and multiple decorative members 12. This also reduces the transmission of the impact to the case body 6, preventing the watch module (not shown) inside the case body 6 from being damaged or otherwise adversely affected by the impact, thereby achieving impact resistance.

[0095] That is, the side exterior member 11 is elastically sandwiched between multiple decorative members 12 provided on the side of the case main body 6 by the spring force of the first spring portions 39 of the spring members 37, so when the top exterior member 7 receives an impact from above, the impact is buffered by the spring force of the first spring portions 39 of the spring members 37 which elastically sandwich the side exterior member 11. This also reduces the transmission of the impact to the case main body 6, so that the watch module (not shown) inside the case main body 6 is prevented from being damaged or otherwise adversely affected by the impact, thereby achieving impact resistance.

[0096] In this case, when side exterior member 11 is attached to case body 6 with engaging protrusions 42 engaging with engaging recesses 41 of case body 6, the underside of engaging protrusions 42 presses against first buffer members 43 provided on the bottom surface of engaging recesses 41, and second buffer members 44 provided on the side of engaging protrusions 42 presses against the side surface of engaging recesses 41, so that impacts received from above by top exterior member 7 are buffered by first buffer member 43 and second buffer member 44. This also reduces the transmission of impact to case body 6, preventing the watch module (not shown) inside case body 6 from being damaged or otherwise adversely affected by the impact, thereby achieving impact resistance.

[0097] Furthermore, decorative member 12 has movable member 31 attached to fixed member 30 fixed to the side of case body 6 by mounting shaft 28 so that it can move up and down, and this movable member 31 is urged upward by second spring portion 40 of spring member 37, so that when upper exterior member 7 receives an impact from above, the impact is cushioned by the spring force of second spring portion 39 of spring member 37 which elastically pushes up third decorative portion 36 of movable member 31. This also reduces the transmission of impact to case body 6, preventing the watch module (not shown) inside case body 6 from being damaged or otherwise adversely affected by the impact, thereby achieving impact resistance.

[0098] Furthermore, this wristwatch case 1 has a top exterior member 7 arranged on the top of the case body 6, a band exterior member 10 arranged on the band mounting protrusion 6a of the case body 6, and multiple side exterior members 11 and multiple decorative members 12 arranged on the sides of the case body 6, thereby enhancing the decorativeness and design of the wristwatch case 1.

[0099] That is, this wristwatch case 1 has an upper exterior member 7 formed from a highly decorative metal such as a cobalt chromium alloy, and band exterior member 10, side exterior member 11, and decorative member 12 formed from a highly decorative metal such as a titanium alloy, thereby enhancing the decorativeness and design, resulting in a product with high commercial value.

[0100] Furthermore, even though the outer shape of this watch case 1 is complicated due to the top exterior member 7, band exterior member 10, side exterior member 11, and decorative member 12, the surfaces of these top exterior member 7, band exterior member 10, side exterior member 11, and decorative member 12 are individually surface-finished, which also enhances the decorativeness and design, further increasing the commercial value.

[0101] That is, with this wristwatch case 1, the top exterior member 7, band exterior member 10, side exterior member 11, and decorative member 12 can be removed from the case body 6 and surface finished individually, so even if the top exterior member 7, band exterior member 10, side exterior member 11, and decorative member 12 are made of a metal that is high in hardness and highly decorative, such as a cobalt chromium alloy or a titanium alloy, they can be satisfactorily surface finished with a hairline finish, matte finish, mirror finish, and other finishes.

[0102] Thus, this wristwatch case 1 comprises a case body 6 and a decorative member 12 which is a side member provided on the side of the case body 6, and the decorative member 12 comprises a fixed member 30 fixed to the side of the case body 6 and a movable member 31 attached to the fixed member 30 so as to be movable in the vertical direction, thereby being able to cushion impacts and also enhancing decorativeness and design.

[0103] That is, in this wristwatch case 1, movable member 31 is attached to fixed member 30 so that it can move up and down, so that when decorative member 12 receives an impact from above, movable member 31 moves due to the impact, thereby cushioning the impact received from above by decorative member 12. This reduces the transmission of the impact received by side exterior member 11 to case main body 6, preventing the watch module (not shown) inside case main body 6 from being damaged or otherwise adversely affected by the impact, thereby achieving impact resistance.

[0104] Furthermore, with this wristwatch case 1, there is no need to fasten the decorative members 12 to the side of the case body 6 with screws, thereby enhancing the decorativeness and design. In this case, the movable members 31 attached to the side of the case body 6 can move up and down, allowing for an innovative design, which also enhances the design. Furthermore, by forming the multiple decorative members 12 from a highly decorative metal such as a titanium alloy, this also enhances the decorativeness and design.

[0105] Furthermore, in this wristwatch case 1, a mating recess 32 is provided on the side of the case body 6, and the fixing member 30 is provided with a mating protrusion 33 that fits into the mating recess 32 of the case body 6, so that the mating protrusion 33 of the fixing member 30 can be easily fitted into the mating recess 32 on the side of the case body 6, thereby allowing the fixing member 30 to be securely and securely attached to the side of the case body 6.

[0106] In this case, in this wristwatch case 1, the mating protrusion 33 of the fixing member 30 is fitted into the mating recess 32 on the side of the case body 6 and temporarily fixed with adhesive tape (not shown), and in this state the edge of one of the pair of first decorative portions 34 of the fixing member 30 is welded to the side of the case body 6 by laser welding or the like, thereby allowing the fixing member 30 to be securely and firmly attached to the side of the case body 6.

[0107] Furthermore, in this wristwatch case 1, the fixed member 30 has a pair of first decorative portions 34 provided on both sides of the mating protrusion 33, and the movable member 31 has a second decorative portion 35 arranged between the pair of first decorative portions 34 and a third decorative portion 36 arranged above each of the pair of first decorative portions 34. This allows the second decorative portion 35 of the movable member 31 to be arranged between the pair of first decorative portions 34 of the fixed member 30 fixed to the side of the case body 6, and the third decorative portion 36 of the movable member 31 to be arranged above the pair of first decorative portions 34. This not only allows the second decorative portion 35 and the third decorative portion 36 to be arranged movably in the vertical direction, but also enhances decorativeness and design properties with the pair of first decorative portion 34, second decorative portion 35, and third decorative portion 36.

[0108] Furthermore, in this wristwatch case 1, the movable member 31 is attached to the fixed member 30 by the mounting shaft 28, which is an attachment member, so that it can be moved up and down. Therefore, even if the decorative member 12 is divided into the fixed member 30 and the movable member 31, the movable member 31 can be attached to the fixed member 30 by the mounting shaft 28, and since this fixed member 30 can be attached to the side of the case main body 6, the movable member 31 can be attached to the side of the case main body 6 so that it can be moved up and down.

[0109] Furthermore, in this wristwatch case 1, the mounting shaft 28 is attached across a pair of first decorative parts 34 of the fixed member 30 and inserted into the second mounting hole 35a which is long in the vertical direction and provided in the second decorative part 35 of the movable member 31. Therefore, even when the movable member 31 is attached to the fixed member 30 by the mounting shaft 28, the mounting shaft 28 can move relatively in the vertical direction within the second mounting hole 35a which is long in the vertical direction and provided in the second decorative part 35 of the movable member 31, so that the second decorative part 35 can be moved in the vertical direction together with the third decorative part 36.

[0110] In this case, the mounting shaft 28 is formed so that its outer diameter is the same as the inner diameter of the first mounting hole 34a of the first decorative part 34, and a press-fit portion 28a with an outer diameter slightly larger than the inner diameter of the first mounting hole 34a is formed at one end. Therefore, the other end of this mounting shaft 28 opposite the press-fit portion 28a can be inserted from the first mounting hole 34a of one first decorative part 34 through the second mounting hole 35a of the second decorative part 35 into the first mounting hole 34a of the other first decorative part 34, and the press-fit portion 28a at the one end with the larger outer diameter can be press-fit into the first mounting hole 34a of one first decorative part 34, so that the mounting shaft 28 can be securely fixed and attached to the pair of first decorative parts 34.

[0111] Furthermore, in this wristwatch case 1, decorative member 12 is equipped with spring member 37, which is a biasing member that biases movable member 31 upward, so that movable member 31, which is attached to fixed member 30 by mounting shaft 28 so as to be movable in the vertical direction, can be elastically pushed up by spring member 37. Therefore, when decorative member 12 receives an impact from above, the spring force of spring member 37 that pushes up movable member 31 can cushion the impact received from above by decorative member 12.

[0112] In this case, in this wristwatch case 1, the spring member 37 is positioned between the pair of first decorative portions 34 of the fixed member 30 and the third decorative portion 36 of the movable member 31, so that when attaching the movable member 31 to the fixed member 30, the spring member 37 can be attached by being positioned between the pair of first decorative portions 34 of the fixed member 30 and the third decorative portion 36 of the movable member 31.This makes the attachment work of the spring member 37 simple and easy, and also allows the spring member 37 to be attached securely and well between the pair of first decorative portions 34 of the fixed member 30 and the third decorative portion 36 of the movable member 31.

[0113] In addition, in this wristwatch case 1, the spring member 37 is equipped with a first spring portion 39, which is a first biasing portion arranged on the side of the first decorative portion 34, and a second spring portion 40, which is a second biasing portion that biases the third decorative portion 36 upward, so that the first spring portion 39 can bias the side exterior member 11, which is arranged to the side of the decorative member 12, in a direction away from the decorative member 12.

[0114] In addition, in this wristwatch case 1, the second spring portion 40 can urge the third decorative portion 36 of the movable member 31 upward together with the second decorative portion 35, and the movable member 31 can be attached to the fixed member 30 without any rattling, and the third decorative portion 36 can be moved together with the second decorative portion 35 in the vertical direction against the spring force of the second spring portion 40.

[0115] Furthermore, in this wristwatch case 1, the first spring portion 39, which is the first biasing portion of the spring member 37, biases the side exterior member 11 arranged on the side of the case main body 6 in a direction away from the decorative member 12, so that the side exterior member 11 can be elastically held on the side of the case main body 6 by the first spring portion 39. In this case, in this wristwatch case 1, the side exterior member 11 arranged between the multiple decorative members 12 arranged on the side of the case main body 6 can be elastically clamped by the spring member 37.

[0116] Furthermore, this wristwatch case 1 is equipped with a top exterior member 7 that is positioned on the top of the case body 6 and presses down on the side exterior member 11 and the multiple decorative members 12 from above, so that the side exterior member 11 and the multiple decorative members 12 that are positioned on the side of the case body 6 can be securely and effectively pressed down by the top exterior member 7, and the side exterior member 11 and the multiple decorative members 12 can be securely attached to the side of the case body 6 without any rattling.

[0117] In the above-described embodiment, the top exterior member 7, the band exterior member 10, the side exterior member 11, and the decorative member 12 are described as being formed from metal materials or brittle materials, but the present invention is not limited to this, and they may be formed from synthetic resins, or the top exterior member 7, the band exterior member 10, the side exterior member 11, and the decorative member 12 may each be formed from a different material.

[0118] Furthermore, although the above-described embodiment has been described as being applied to a wristwatch, the present invention does not necessarily have to be a wristwatch, and can be applied to various types of timepieces, such as travel watches, alarm clocks, table clocks, wall clocks, etc. Furthermore, the present invention does not necessarily have to be a timepiece, and can also be applied to electronic devices such as wrist-worn devices, mobile phones, and personal digital assistants.

[0119] Although one embodiment of the present invention has been described above, the present invention is not limited to this and includes the inventions set forth in the claims and their equivalents.

[0120] The inventions described in the claims of this application are as follows: (Addendum) The invention described in claim 1 is a case comprising a case body and a side member provided on a side of the case body, wherein the side member comprises a fixed member fixed to the side of the case body and a movable member attached to the fixed member so as to be movable in the vertical direction.

[0121] The invention described in claim 2 is a case characterized in that, in the case described in claim 1, an engaging recess is provided on the side of the case body, and the fixing member is provided with an engaging protrusion that engages with the engaging recess of the case body.

[0122] The invention described in claim 3 is a case characterized in that, in the case described in claim 1 or claim 2, the fixed member has a pair of first decorative portions provided on both sides of the mating convex portion, and the movable member has a second decorative portion arranged between the pair of first decorative portions and a third decorative portion arranged on each upper part of the pair of first decorative portions.

[0123] The invention described in claim 4 is a case according to any one of claims 1 to 3, characterized in that the movable member is attached to the fixed member by an attachment member so as to be movable in the vertical direction.

[0124] The invention described in claim 5 is a case characterized in that, in the case described in claim 4, the mounting member is attached across the pair of first decorative portions of the fixed member and inserted into a vertically long mounting hole provided in the second decorative portion of the movable member.

[0125] The invention described in claim 6 is a case according to any one of claims 1 to 5, characterized in that the side member is provided with a biasing member that biases the movable member upward.

[0126] The invention described in claim 7 is a case characterized in that, in the case described in claim 6, the biasing member is arranged between the pair of first decorative portions of the fixed member and the third decorative portion of the movable member.

[0127] The invention described in claim 8 is a case characterized in that, in the case described in claim 6 or claim 7, the urging member comprises a first urging portion arranged on the side of the first decorative portion and a second urging portion that urges the third decorative portion upward.

[0128] The invention described in claim 9 is a case in which, in the case described in claim 8, the first biasing portion of the biasing member biases the side exterior member arranged on the side of the case main body in a direction away from the side member.

[0129] The invention described in claim 10 is a case according to any one of claims 1 to 9, characterized in that it is provided with a first exterior member that is arranged on the upper part of the case body and presses the side member from above.

[0130] The invention described in claim 11 is a timepiece characterized by comprising a case described in any one of claims 1 to 10. [Explanation of symbols]

[0131] 1 watch case 2 Band attachment part 3 Switch Button 4. Watch Glass 6 Case body 6a Band mounting protrusion 6b screw hole 6c 1st step surface 7 Upper exterior member 8 Positioning member 10 Band exterior material 11 Side exterior member 11a Switch notch 11b 2nd step surface 12 Decorative materials 13 Connection recess 14 Engagement hook 15 Rising section 16 Flat plate part 16a Screw insertion part 17 Locking recess 18 First Dowel 20 Second Dowel 21 Cover body 22 Cover side wall 23 Notch 24 Third Dowel 25 Fourth Dowel 26 Screw member 26a Decorative head 26b Threaded part 26c screwdriver groove 27 Counterbore 28 Mounting shaft 28a Press-fit part 30 Fixing member 31 Movable parts 32 Fitting recess 33 Fitting protrusion 34 First Decorative Section 34a First mounting hole 34b Step recess 35 Second Decorative Section 35a Second mounting hole 36 Third Decorative Section 37 Spring member 38 Spring body 38a Spring notch 38b Clamping part 38c Connection support part 39 First spring section 40 Second spring section 41 Engagement recess 42 Engagement protrusion 43 First buffer member 44 Second buffer member

Claims

1. The case body and a side surface member provided on a side surface of the case body; Equipped with The side surface member includes a fixed member fixed to the side surface of the case body, and a movable member attached to the fixed member so as to be movable in the up and down direction. A case characterized by:

2. In the case of claim 1, The side surface of the case body is provided with a fitting recess, The fixing member is provided with a fitting protrusion that fits into the fitting recess of the case body. A case characterized by:

3. In the case according to claim 1 or claim 2, The fixing member includes a pair of first decorative portions provided on both sides of the fitting protrusion, The movable member includes a second decorative portion disposed between the pair of first decorative portions, and a third decorative portion disposed above each of the pair of first decorative portions. A case characterized by:

4. In the case according to any one of claims 1 to 3, The movable member is attached to the fixed member by an attachment member so as to be movable in the up and down direction. A case characterized by:

5. In the case of claim 4, The mounting member is attached across the pair of first decorative portions of the fixed member and is inserted into a mounting hole that is long in the vertical direction and provided in the second decorative portion of the movable member. A case characterized by:

6. In the case according to any one of claims 1 to 5, The side member is provided with a biasing member that biases the movable member upward. A case characterized by:

7. In the case of claim 6, The biasing member is disposed between the pair of first decorative portions of the fixed member and the third decorative portion of the movable member. A case characterized by:

8. In the case of claim 6 or claim 7, The biasing member includes a first biasing portion disposed on a side surface of the first decorative portion and a second biasing portion that biases the third decorative portion upward. A case characterized by:

9. In the case of claim 8, The first biasing portion of the biasing member biases the side exterior member disposed on the side surface of the case body in a direction away from the side surface member. A case characterized by:

10. In the case according to any one of claims 1 to 9, a first exterior member disposed on the upper portion of the case body and pressing the side member from above; A case characterized by:

11. A watch comprising a case according to any one of claims 1 to 10.

Citation Information

Patent Citations

  • Watch having polygonal bezel

    JP2008185589A