Decoration body, manufacturing method of decoration body, accessory, and watch

The wristwatch design addresses the limitation of two-dimensional decorative expressions by incorporating a ring-shaped ornament with laminated light-transmissive decorative members, enhancing the overall decorativeness and aesthetic appeal.

JP2025096402AActive Publication Date: 2025-06-26CASIO COMPUTER CO LTD
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Patent Information

Application Number
JP2025062880
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2025-06-26
Estimated Expiration
2041-01-29

AI Technical Summary

Technical Problem

Existing wristwatch designs with planar arrangements of decorative members in the watch case attachment recesses limit the decorative expression to only a two-dimensional appearance, resulting in poor decorativeness.

Method used

A wristwatch featuring a ring-shaped ornament with laminated light-transmissive decorative members and a holding member with a fixing portion, attached to a wristwatch case, allowing for a three-dimensional decorative expression.

Benefits of technology

The solution enhances the decorativeness of the wristwatch by providing a three-dimensional decorative expression through the laminated decorative members, while maintaining a sleek and integrated design.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a highly decorative decoration body, a manufacturing method of the decoration body, an accessory with the decoration body, and a watch.SOLUTION: The decoration body comprises: decorative members 7 each formed of brittle material with light permeability; and a holding member 8 which has a fitting recess part 10 having the decorative members 7 fitted therein to be fixed. Multiple decorative members 7 are laminated in the fitting recess part 10 of the holding member 8. Consequently, as the decorative members 7 are formed of the brittle material having light permeability, even when the decorative members 7 are laminated, the laminated decorative members 7 can be seen through. As this makes it possible to perform stereoscopic decorative expression with the laminated decorative members 7, a highly decorative decoration body can be provided.SELECTED DRAWING: Figure 3
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Description

Technical Field

[0001] The present invention relates to an ornament used for ornaments such as watches, bracelets, and brooches, a method for manufacturing the ornament, an ornament provided with the ornament, and a watch.

Background Art

[0002] For example, in a wristwatch which is an ornament, as described in Patent Document 1, there is known a structure in which an attachment recess is provided in a watch case, and a plurality of decorative members made of a brittle material such as a gemstone are arranged and fitted in the attachment recess in a planar manner.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In such a wristwatch, since only a plurality of decorative members are arranged and fitted in a planar manner in the attachment recess of the watch case, only a planar decorative expression can be achieved, and thus there is a problem of poor decorativeness.

[0005] The problem to be solved by the present invention is to provide an ornament with high decorativeness, a method for manufacturing the ornament, an ornament provided with the ornament, and a watch.

Means for Solving the Problems

[0006] This invention provides a wristwatch comprising a ring-shaped ornament in which a plurality of light-transmissive decorative members are laminated, and a wristwatch case to which the ring-shaped ornament is attached. The ornament includes a ring-shaped holding member having a fixing portion to which the decorative member is fixed. The wristwatch case is separate from the ring-shaped holding member and includes an attachment portion to which the ring-shaped holding member is attached. Each of the laminated decorative members is fixed by the fixing portion of the holding member.

Advantages of the Invention

[0007] According to this invention, it is possible to provide a highly decorative item.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0009] Hereinafter, with reference to Figs. 1 to 6, an embodiment of a wristwatch to which this invention is applied will be described. This wristwatch is an ornament to be worn on the wrist. As shown in FIGS. 1 and 2, it includes a wristwatch case 1 which is the ornament body. This wristwatch case 1 has a structure in which an upper case 1b is attached to a lower case 1a via a waterproof ring 1c.

[0010] On the 12 o'clock side and 6 o'clock side of the lower case 1a of this wristwatch case 1, as shown in FIGS. 1 and 2, band attachment portions 2 to which a watch band (not shown) is attached are respectively provided. On the 2 o'clock side, 3 o'clock side, 4 o'clock side, 8 o'clock side, and 10 o'clock side (the 8 o'clock side and 10 o'clock side are not shown) of the lower case 1a of this wristwatch case 1, switch portions 3 are respectively provided.

[0011] Also, on the upper opening of this wristwatch case 1, that is, the upper opening of the upper case 1b, as shown in FIGS. 1 and 2, a watch glass 4 is attached via a packing 4a. A back cover (not shown) is attached to the lower part of this wristwatch case 1. A watch module (not shown) is provided inside this wristwatch case 1.

[0012] By the way, on the upper part of this wristwatch case 1, that is, the upper part of the upper case 1b, as shown in FIGS. 1 to 3, a mounting recess 6 which is a mounting portion for attaching a decorative body 5 is formed in a ring shape along the outer periphery of the wristwatch case 1. In this case, the upper surface of the upper case 1b of the wristwatch case 1 is formed as a gently inclined surface that gradually becomes lower from the inner peripheral side toward the outer peripheral side. For this reason, the mounting recess 6 has a substantially rectangular cross-sectional shape, and the inner peripheral side of the wristwatch case 1 is formed slightly deeper than the outer peripheral side.

[0013] As shown in FIGS. 3 to 6, the decorative body 5 includes a plurality of decorative members 7 made of a brittle material having light transmissibility, and a holding member 8 in which these plurality of decorative members 7 are laminated and fitted. The holding member 8 is a thin metal plate 9 (see FIG. 6(b)) such as stainless steel, titanium alloy, or aluminum alloy, for example, a metal plate 9 having a thickness of about 0.1 mm, and is formed in an overall ring shape.

[0014] That is, as shown in FIGS. 4 to 6, the holding member 8 is formed with a fitting recess 10 (fixing portion) having a concave cross-sectional shape by bending and raising the inner peripheral portion and the outer peripheral portion of the ring-shaped metal plate 9. This fitting recess 10 is formed to be open upward by the bottom portion 8a of the holding member 8, the rising portion 8b on the inner peripheral side of the holding member 8, and the rising portion 8c on the outer peripheral side of the holding member 8.

[0015] In this case, as shown in FIGS. 6(a) and 6(b), a plurality of notches 8d for facilitating the bending process of the inner peripheral portion and the outer peripheral portion of the metal plate 9 are provided at predetermined intervals along the circumferential direction on the rising portion 8b on the inner peripheral side and the rising portion 8c on the outer peripheral side of the holding member 8. The holding member 8 is formed such that the distance between the outer surface of the rising portion 8b on the inner peripheral side and the outer surface of the rising portion 8c on the outer peripheral side, that is, the length in the radial direction orthogonal to the circumferential direction of the bottom portion 8a, is the same as the length in the radial direction orthogonal to the circumferential direction of the mounting recess 6 of the watch case 1.

[0016] Also, as shown in FIGS. 3 to 5, the holding member 8 is formed such that the rising portion 8b on the inner peripheral side is slightly higher than the rising portion 8c on the outer peripheral side. That is, the holding member 8 is formed such that the height of the rising portion 8b on the inner peripheral side is slightly lower than the height of the inner peripheral surface of the mounting recess 6 located on the inner peripheral portion side of the watch case 1, and the height of the rising portion 8c on the outer peripheral side is the same as or slightly lower than the height of the inner peripheral surface of the mounting recess 6 located on the outer peripheral portion side of the watch case 1.

[0017] Thereby, as shown in FIG. 3, when the holding member 8 is fitted into the mounting recess 6 of the watch case 1 from above, the bottom portion 8a is in close contact with the bottom surface in the mounting recess 6 of the watch case 1, the rising portion 8b on the inner peripheral side approaches the inner peripheral surface of the mounting recess 6 located on the inner peripheral portion side of the watch case 1 at a slightly lower height, and the rising portion 8c on the outer peripheral side approaches the inner peripheral surface of the mounting recess 6 located on the outer peripheral portion side of the watch case 1 at the same height or slightly lower height.

[0018] In this case, as shown in FIGS. 3 and 4, the holding member 8 is configured to be adhered and fixed in the mounting recess 6 of the watch case 1 by an adhesive 11. That is, the adhesive 11 is applied with a slightly thick thickness to the bottom of the mounting recess 6 in the watch case 1. When the holding member 8 is mounted in the mounting recess 6, it wraps around the outer surfaces of the inner rising portion 8b on the inner peripheral side and the outer rising portion 8c on the outer peripheral side of the holding member 8 from the lower surface of the bottom portion 8a of the holding member 8, and adheres and fixes the holding member 8 in the mounting recess 6.

[0019] Therefore, as shown in FIGS. 3 and 4, an adhesive reservoir portion 6a for accumulating the adhesive 11 that wraps around the outer surfaces of the inner rising portion 8b on the inner peripheral side and the outer rising portion 8c on the outer peripheral side of the holding member 8 from the lower surface of the bottom portion 8a of the holding member 8 is provided at a location below the middle portion in the vertical direction on the inner peripheral surface in the mounting recess 6.

[0020] As a result, as shown in FIGS. 3 and 4, when the holding member 8 is mounted in the mounting recess 6 and the adhesive 11 wraps around the outer surfaces of the inner rising portion 8b on the inner peripheral side and the outer rising portion 8c on the outer peripheral side of the holding member 8 from the lower surface of the bottom portion 8a of the holding member 8, it accumulates in the adhesive reservoir portion 6a of the mounting recess 6 and does not leak out to the upper side of the mounting recess 6.

[0021] Further, as shown in FIGS. 3 to 5, a coloring layer 10a for coloring a plurality of decorative members 7 is provided on the inner surface of the fitting recess 10 of the holding member 8. That is, the coloring layer 10a may be provided over the entire bottom surface and both side surfaces in the fitting recess 10, or may be provided on a part of the bottom surface and both side surfaces in the fitting recess 10. Also, although not shown, the coloring layer 10a may be one color among seven colors such as red, orange, yellow, green, blue, indigo, violet, or twelve colors, or may be partially different colors.

[0022] For example, although not shown in the figure, this colored layer 10a may have different colors in the left-right direction with the line connecting 12 o'clock and 6 o'clock as the boundary on the inner surface of the fitting recess 10, or may have different colors in the up-down direction with the line connecting 3 o'clock and 9 o'clock as the boundary. Also, the inner surface of the fitting recess 10 may be divided into a plurality of parts, and these divided parts may have different colors. In this case, the colored layer 10a may have different colors, for example, at the locations corresponding to the hour characters representing 1 o'clock to 12 o'clock and the other locations, or may have different colors for each hour character.

[0023] On the other hand, as shown in FIGS. 3 to 5, the plurality of decorative members 7 are made of brittle materials such as gems like sapphire, emerald, ruby, diamond, glass with high transparency such as quartz glass, or ceramics, and are formed of brittle materials having transparent or translucent light transmissibility. Each of these plurality of decorative members 7 is formed in a substantially flat plate shape with a ring shape having the same size as the fitting recess 10 of the holding member 8. In this case, in this embodiment, two of the plurality of decorative members 7 are laminated, but three or more may be laminated.

[0024] As shown in FIGS. 3 to 5, decorative layers 7a are respectively provided on the front (upper surface) and back (lower surface) of these plurality of decorative members 7. These decorative layers 7a are thin film layers such as a cut glass layer like cut glass, or a printed layer or vapor deposition layer having light transmissibility such as a pattern or figure. Thereby, when the plurality of decorative members 7 are laminated, the decorative layers 7a can be seen from above, and a three-dimensional decorative expression can be obtained. In this case, the decorative layer 7a may be provided on all of the upper and lower surfaces of each of the plurality of decorative members 7, or may be partially provided on either the upper or lower surface of each of the plurality of decorative members 7.

[0025] Further, as shown in FIGS. 3 to 5, each of these plurality of decorative members 7 is provided with a chamfered portion 7b at each corner of the upper and lower surfaces. In this case, among the plurality of decorative members 7, the uppermost decorative member 7 has an inclined surface formed such that its upper surface gradually slopes downward from the inner peripheral side toward the outer peripheral side, similar to the upper surface of the watch case 1. As a result, when the plurality of decorative members 7 are stacked one on top of the other vertically, they are formed such that the height on the inner peripheral side is higher than the height on the outer peripheral side.

[0026] Also, as shown in FIGS. 3 and 4, when these plurality of decorative members 7 are stacked vertically, they are temporarily fixed by a transparent or translucent adhesive (not shown) with the decorative layers 7a provided on the respective upper and lower surfaces aligned. Therefore, when the plurality of decorative members 7 are stacked vertically and fitted into the fitting recess 10 of the holding member 8, with the upper surface of the uppermost decorative member 7 inclined, a portion corresponding to the chamfered portion 7b on the upper surface side of the uppermost decorative member 7 is configured to protrude above the upper side of the fitting recess 10.

[0027] That is, as shown in FIGS. 3 and 4, when the plurality of decorative members 7 are stacked and fitted into the fitting recess 10 of the holding member 8, the upper end portion corresponding to the chamfered portion 7b on the inner peripheral portion of the upper surface of the uppermost decorative member 7 is configured to protrude above the rising portion 8b on the inner peripheral side of the fitting recess 10.

[0028] Similarly, as shown in FIGS. 3 and 4, when the plurality of decorative members 7 are stacked and fitted into the fitting recess 10 of the holding member 8, the upper end portion substantially corresponding to the chamfered portion 7b on the outer peripheral portion of the upper surface of the uppermost decorative member 7 is configured to protrude above the rising portion 8c on the outer peripheral side of the fitting recess 10.

[0029] As a result, as shown in FIGS. 2 and 3, when the holding member 8 is mounted in the mounting recess 6 of the watch case 1, the upper surface of the uppermost decorative member 7 protruding above the fitting recess 10 of the holding member 8 is configured to be inclined and disposed substantially flush with the upper surface of the watch case 1. That is, this decorative body 5 is configured such that even if the height of the holding member 8 is slightly lower than the depth of the mounting recess 6 of the watch case 1, the upper surface of the uppermost decorative member 7 is disposed substantially flush with the upper surface of the watch case 1.

[0030] Incidentally, as shown in FIGS. 3 to 5, when the plurality of decorative members 7 are stacked and fitted in the fitting recess 10 of the holding member 8, they are configured to be fixed in the fitting recess 10 by a fixing portion 12 which is a member fixing portion. That is, this fixing portion 12 includes a locking convex portion 12a provided on the rising portion 8c on the outer peripheral side of the holding member 8 which is the inner surface of the fitting recess 10 and protruding toward the inside of the fitting recess 10, and an engaging concave portion 12b provided along the circumferential direction on the outer peripheral surface of the uppermost decorative member 7 and engaged with the locking convex portion 12a of the fitting recess 10.

[0031] As a result, as shown in FIGS. 3 to 5, when the plurality of decorative members 7 are fitted in a state of being stacked in the fitting recess 10 of the holding member 8, the locking convex portion 12a provided to protrude toward the inside of the fitting recess 10 engages with the engaging concave portion 12b provided on the outer peripheral surface of the uppermost decorative member 7, thereby configuring to fix the plurality of decorative members 7 in a stacked state in the fitting recess 10.

[0032] Further, as shown in FIGS. 3 to 5, the plurality of decorative members 7 are also configured to be fixed in the fitting recess 10 by an ultraviolet curable resin 13 which is a photocurable resin as an adhesive in a state of being stacked and fitted in the fitting recess 10 of the holding member 8. That is, this ultraviolet curable resin 13 has light transmissibility such as transparent or translucent, and cures when irradiated with ultraviolet rays, and is applied to substantially the entire inner surface of the fitting recess 10 of the holding member 8.

[0033] Therefore, as shown in FIGS. 3 to 5, when ultraviolet rays are irradiated from above the uppermost decorative member 7 in a state where a plurality of decorative members 7 are laminated and fitted into the fitting recess 10 of the holding member 8, the irradiated ultraviolet rays pass through the plurality of decorative members 7 and are irradiated onto the ultraviolet curable resin 13. As a result, the ultraviolet curable resin 13 is cured to fix the plurality of laminated decorative members 7 in the fitting recess 10, and is configured to prevent displacement due to circumferential rattling of the plurality of decorative members 7.

[0034] Next, a method for manufacturing such a wristwatch will be described. This method for manufacturing a wristwatch includes a first step of forming the holding member 8 by forming the fitting recess 10 by bending a metal plate 9, and a second step of forming the decorative body 5 by laminating and fitting a plurality of decorative members 7 into the fitting recess 10 of the holding member 8 and fixing them, and a third step of attaching the decorative body 5 to the attachment recess 6 of the wristwatch case 1.

[0035] That is, in the first step, as shown in FIGS. 6(a) and 6(b), the locking convex portion 12a (see FIG. 5) of the fixing portion 12 is formed by pressing at a position corresponding to the outer peripheral side rising portion 8c located on the outer peripheral portion side of the bottom portion 8a of the ring-shaped metal plate 9 in advance. At the same time, a plurality of notches 8d are provided at predetermined intervals along the circumferential direction at positions corresponding to the inner peripheral side rising portion 8b and the outer peripheral side rising portion 8c located on the inner peripheral portion side and the outer peripheral portion side of the bottom portion 8a of the metal plate 9, respectively.

[0036] Then, as shown in FIGS. 5 and 6, by raising the inner peripheral portion and the outer peripheral portion of the metal plate 9 by bending such as pressing, rising portions 8b and 8c are formed on the inner peripheral portion and the outer peripheral portion of the portion corresponding to the bottom portion 8a of the metal plate 9, respectively. At this time, the inner peripheral side rising portion 8b and the outer peripheral side rising portion 8c of the metal plate 9 are easily and favorably bent by the plurality of notches 8d provided at positions corresponding to the inner peripheral side rising portion 8b and the outer peripheral side rising portion 8c located on the inner peripheral portion side and the outer peripheral portion side of the bottom portion 8a of the metal plate 9, respectively.

[0037] Thus, in the first step, a holding member 8 is formed in which a fitting recess 10 that is open upward is formed by a bottom portion 8a of the metal plate 9, a rising portion 8b on the inner peripheral side of the metal plate 9, and a rising portion 8c on the outer peripheral side of the metal plate 9. At this time, locking convex portions 12a are provided so as to protrude toward the inside of the fitting recess 10 on the rising portion 8c on the outer peripheral side of the holding member 8, which is the inner surface of the fitting recess 10.

[0038] Then, in this first step, a coloring layer 10a for coloring a plurality of decorative members 7 is provided on the inner surface of the fitting recess 10 of the holding member 8. This coloring layer 10a may be provided over the entire bottom surface and both side surfaces in the fitting recess 10, or may be provided on a part of the bottom surface and both side surfaces in the fitting recess 10. In this case, the coloring layer 10a may be a single color, or may be partially different colors.

[0039] For example, this coloring layer 10a may have different colors in the left - right direction with the line connecting 12 o'clock and 6 o'clock as a boundary on the inner surface of the fitting recess 10, may have different colors in the up - down direction with the line connecting 3 o'clock and 9 o'clock as a boundary, or the inner surface of the fitting recess 10 may be divided into a plurality of parts and these divided parts may have different colors. In this case, the coloring layer 10a may, for example, have different colors at locations corresponding to the hour numerals representing 1 o'clock to 12 o'clock and other locations, or may have different colors for each hour numeral.

[0040] In the second step, when fitting a plurality of decorative members 7 into the fitting recess 10 of the holding member 8, engagement recesses 12b are formed in advance on the outer peripheral surfaces of the uppermost decorative members 7, and the plurality of decorative members 7 are laminated. At this time, the decorative layers 7a provided on the upper and lower surfaces of the plurality of decorative members 7 are aligned, and the plurality of decorative members 7 are laminated so that decorative patterns, decorative figures, etc. by the respective decorative layers 7a are three - dimensionally expressed. In this state, the laminated plurality of decorative members 7 are adhesively bonded and temporarily fixed with an adhesive (not shown) having light - transmissivity such as transparent or semi - transparent.

[0041] When fitting a plurality of stacked decorative members 7 into the fitting recess 10 of the holding member 8, an ultraviolet curable resin 13, which is a photocurable resin having light transmissibility over substantially the entire inner surface of the fitting recess 10, is applied in advance. In this state, the plurality of stacked decorative members 7 are fitted into the fitting recess 10 of the holding member 8. Then, among the plurality of stacked decorative members 7, a locking convex portion 12a provided on the rising portion 8c on the outer peripheral side of the holding member 8 engages with an engaging concave portion 12b provided on the outer peripheral surface of the uppermost decorative member 7, and the plurality of stacked decorative members 7 are fixed within the fitting recess 10 of the holding member 8.

[0042] At this time, the ultraviolet curable resin 13 applied over substantially the entire inner surface of the fitting recess 10 has not hardened and has fluidity. Therefore, when fitting the plurality of stacked decorative members 7 into the fitting recess 10 of the holding member 8, the plurality of stacked decorative members 7 are smoothly and well fitted into the fitting recess 10 of the holding member 8 without being affected by the ultraviolet curable resin 13.

[0043] In this state, when ultraviolet rays are irradiated from above the uppermost decorative member 7, the irradiated ultraviolet rays pass through the plurality of stacked decorative members 7 and are irradiated onto the ultraviolet curable resin 13 applied to the inner surface of the fitting recess 10. Then, the ultraviolet curable resin 13 is cured by the irradiated ultraviolet rays, and the plurality of stacked decorative members 7 are fixed within the fitting recess 10 of the holding member 8 by the cured ultraviolet curable resin 13, preventing displacement due to play in the circumferential direction in the plurality of decorative members 7. Thereby, the decorative body 5 is formed.

[0044] In the third step, the decorative body 5 is attached to and fixed in the attachment recess 6 of the watch case 1. At this time, as shown in FIG. 4 in advance, an adhesive 11 is thickly applied to the bottom side of the inner surface of the attachment recess 6 of the watch case 1, and in this state, the holding member 8 of the decorative body 5 is fitted into the attachment recess 6 of the watch case 1. Then, the adhesive 11 wraps around from the lower surface of the bottom 8a of the holding member 8 to the outer surfaces of the inner peripheral rising portion 8b and the outer peripheral rising portion 8c of the holding member 8.

[0045] As shown in FIG. 3, this surrounding adhesive 11 accumulates in an adhesive reservoir portion 6a provided at a location below the middle portion in the vertical direction on the inner circumferential surface within the mounting recess 6. Thereby, the holding member 8 is mounted within the mounting recess 6 and fixed by the adhesive 11. At this time, even if the adhesive 11 wraps around to the outer surfaces of the rising portion 8b on the inner circumferential side and the rising portion 8c on the outer circumferential side of the holding member 8 from the lower surface of the bottom portion 8a of the holding member 8, it accumulates in the adhesive reservoir portion 6a of the mounting recess 6, so that the adhesive 11 does not leak out above the mounting recess 6.

[0046] Next, the operation of such a decorative body 5 of the wristwatch will be described. Since this decorative body 5 has a plurality of decorative members 7 made of a brittle material having light transmissibility laminated and arranged within the fitting recess 10 of the holding member 8, a three-dimensional decorative expression can be obtained by the decorative layers 7a provided on the upper and lower surfaces of each of the plurality of decorative members 7 being visible through from above. Thereby, the decorativeness is enhanced.

[0047] In this case, since a colored layer 10a is provided on the inner surface of the fitting recess 10 of the holding member 8, the plurality of decorative members 7 laminated within the fitting recess 10 of the holding member 8 are colored by this colored layer 10a. Also by this, the decorativeness is enhanced. In this case, the colored layer 10a may be provided in a single color over substantially the entire inner surface of the fitting recess 10 to color the plurality of decorative members 7 in a single color, or the colored layer 10a may be provided partially in different colors on the inner surface of the fitting recess 10 to color the plurality of decorative members 7 in partially different colors.

[0048] For example, the colored layer 10a may be made to have different colors in the left - right direction with the line connecting 12 o'clock and 6 o'clock as the boundary on the inner surface of the fitting recess 10 to color the plurality of decorative members 7 in different colors in the left - right direction, or the colored layer 10a may be made to have different colors in the up - down direction with the line connecting 3 o'clock and 9 o'clock as the boundary to color the plurality of decorative members 7 in different colors in the up - down direction. Also, the colored layer 10a may divide the inner surface of the fitting recess 10 into a plurality of parts, make these divided parts have different colors, and color the plurality of decorative members 7 in partially different colors. Also by these, the decorativeness is enhanced.

[0049] Thus, according to the ornament 5 of this wristwatch, it includes a decorative member 7 formed of a brittle material having light transmissivity, and a holding member 8 having a fitting recess 10 into which the decorative member 7 is fitted and fixed. Since a plurality of the decorative members 7 are laminated in the fitting recess 10 of the holding member 8, it is possible to provide a highly decorative one.

[0050] That is, in the ornament 5 of this wristwatch, since the plurality of decorative members 7 are formed of a brittle material having light transmissivity, even if the plurality of decorative members 7 are laminated, they can be seen through the laminated plurality of decorative members 7. Thus, a three-dimensional decorative expression can be achieved by the laminated plurality of decorative members 7, and it is possible to provide a highly decorative one.

[0051] In this case, in the ornament 5 of this wristwatch, since a decorative layer 7a is provided on the front and back surfaces (upper and lower surfaces) of the plurality of decorative members 7, different decorative expressions can be achieved for each of the laminated decorative members 7, and a three-dimensional decorative expression can be achieved for the entire laminated plurality of decorative members 7. Thus, a three-dimensional decorative expression can be achieved by the plurality of decorative layers 7a provided on the upper and lower surfaces of the plurality of decorative members 7, and it is possible to provide an even more highly decorative one.

[0052] Also, in the ornament 5 of this wristwatch, since the fitting recess 10 is formed by bending a metal plate 9 for the holding member 8, the thickness of the metal plate 9 can be reduced and the wall thickness of the holding member 8 can be reduced, and the fitting recess 10 can be easily manufactured. That is, the holding member 8 is provided with a plurality of notches 8d at predetermined intervals along the circumferential direction at positions corresponding to the rising portions 8b on the inner peripheral side and the rising portions 8c on the outer peripheral side in the ring-shaped metal plate 9. Thus, even if the holding member 8 is ring-shaped, the rising portions 8b and 8c on the inner peripheral side and the outer peripheral side of the holding member 8 can be easily formed by bending.

[0053] In addition, in the decorative body 5 of this wristwatch, since the inner surface of the fitting recess 10 is colored by the colored layer 10a, the entire plurality of decorative members 7 having light transmissivity can be colored, and the decorativeness can also be enhanced thereby. In this case, in this wristwatch, the colored layer 10a may be provided in a single color over substantially the entire inner surface of the fitting recess 10 to color the plurality of laminated decorative members 7 in a single color, or may be provided partially in different colors on the inner surface of the fitting recess 10 to color the plurality of laminated decorative members 7 in partially different colors.

[0054] That is, in the decorative body 5 of this wristwatch, for example, the colored layer 10a may be made to have different colors in the left-right direction with the line connecting 12 o'clock and 6 o'clock as the boundary on the inner surface of the fitting recess 10, so as to color the plurality of laminated decorative members 7 in different colors in the left-right direction, or the colored layer 10a may be made to have different colors in the up-down direction with the line connecting 3 o'clock and 9 o'clock as the boundary to color the plurality of laminated decorative members 7 in different colors in the up-down direction. Further, the colored layer 10a may divide the inner surface of the fitting recess 10 into a plurality of parts, make these divided parts have different colors, and color the plurality of laminated decorative members 7 in partially different colors. These can also enhance the decorativeness.

[0055] In addition, in the decorative body 5 of this wristwatch, by providing the fixing portion 12 for fixing the plurality of decorative members 7 in the fitting recess 10 of the holding member 8, the plurality of decorative members 7 can be surely and favorably fixed in the fitting recess 10 of the holding member 8 in a laminated state by this fixing portion 12.

[0056] That is, in the decorative body 5 of this wristwatch, the fixing portion 12 includes a locking convex portion 12a provided on the inner surface of the fitting recess 10 and an engaging concave portion 12b provided on the outer peripheral surface of the uppermost decorative member 7 among the plurality of decorative members 7 and engaged with the locking convex portion 12a. Thus, when the plurality of decorative members 7 are laminated and fitted into the fitting recess 10, the locking convex portion 12a of the fitting recess 10 can be engaged with the engaging concave portion 12b of the uppermost decorative member 7, so that the plurality of laminated decorative members 7 can be easily and surely fixed in the fitting recess 10 of the holding member 8.

[0057] Furthermore, in the ornament 5 of this wristwatch, a plurality of ornament members 7 are laminated and fixed in the fitting recess 10 of the holding member 8 by an ultraviolet curable resin 13 which is a photocurable resin. As a result, the plurality of ornament members 7 laminated by the ultraviolet curable resin 13 can be fixed in the fitting recess 10 of the holding member 8, so that displacement due to play in the circumferential direction in the plurality of ornament members 7 can be prevented. In this case, since the ultraviolet curable resin 13 has transparency or semi-transparency and light transmissivity, even if a colored layer 10a is provided on the inner surface of the fitting recess 10, the plurality of ornament members 7 laminated through the ultraviolet curable resin 13 can be colored.

[0058] Also, in the manufacturing method of the ornament 5 in this wristwatch, a first step of forming a holding member 8 in which a fitting recess 10 is formed by bending a metal plate 9, and a second step of laminating, fitting, and fixing a plurality of ornament members 7 made of a brittle material having light transmissivity in the fitting recess 10 of the holding member 8 are provided. As a result, the structure of the holding member 8 is simple, the holding member 8 can be easily manufactured, and the plurality of ornament members 7 can be easily and favorably laminated and attached to the holding member 8.

[0059] In this case, in the first step, a plurality of notches 8d are provided at predetermined intervals along the circumferential direction at positions corresponding to the inner peripheral side rising portion 8b and the outer peripheral side rising portion 8c located on the inner peripheral side and the outer peripheral side of the bottom portion 8a of the ring-shaped metal plate 9 in advance. In this state, the inner peripheral portion and the outer peripheral portion of the metal plate 9 are raised by bending processing such as pressing. Therefore, the rising portions 8b and 8c can be easily and favorably formed on the inner peripheral portion and the outer peripheral portion of the portion corresponding to the bottom portion 8a of the metal plate 9, respectively.

[0060] That is, at this time, even if the metal plate 9 is in the shape of a ring-shaped flat plate, the inner peripheral rising portion 8b and the outer peripheral rising portion 8c of the metal plate 9 can be easily and favorably bent by a plurality of notches 8d provided at respective positions corresponding to the inner peripheral side rising portion 8b and the outer peripheral side rising portion 8c located on the inner peripheral portion side and the outer peripheral portion side of the bottom portion 8a of the metal plate 9. Thereby, the fitting recess 10 opened upward can be accurately and favorably formed by the bottom portion 8a of the metal plate 9, the inner peripheral side rising portion 8b of the metal plate 9, and the outer peripheral side rising portion 8c of the metal plate 9.

[0061] Also, in the second step, the plurality of decorative members 7 can be laminated so that the decorative patterns, decorative figures, etc. by the respective decorative layers 7a are three-dimensionally expressed by aligning the respective decorative layers 7a provided on the front and back surfaces (upper and lower surfaces) of the plurality of decorative members 7, and in this state, the plurality of decorative members 7 can be temporarily fixed by being adhered with an adhesive (not shown) having light transmissivity such as transparent or translucent.

[0062] Therefore, in this second step, when the plurality of laminated decorative members 7 are fitted into the fitting recess 10 of the holding member 8, the locking convex portion 12a of the fixing portion 12 provided on the rising portion 8c of the outer peripheral portion of the holding member 8 can be engaged with the engaging recess 12b of the fixing portion 12 provided on the outer peripheral surface of the uppermost decorative member 7 among the plurality of laminated decorative members 7, so that the plurality of laminated decorative members 7 can be surely and favorably fixed within the fitting recess 10 of the holding member 8.

[0063] Also, in the manufacturing method of the decorative body 5 in this wristwatch, in the second step, after applying an ultraviolet curable resin 13, which is a light transmissive photocurable resin, to the inner surface of the fitting recess 10, the plurality of decorative members 7 are laminated and fitted into the fitting recess 10, and in this state, the ultraviolet curable resin 13 can be cured by irradiating the ultraviolet curable resin 13 with ultraviolet rays through the plurality of decorative members 7, so that the plurality of decorative members 7 can be fixed within the fitting recess 10 by this cured ultraviolet curable resin 13, thereby preventing displacement due to circumferential play in the plurality of decorative members 7.

[0064] Furthermore, in this wristwatch, a decorative body 5 in which a plurality of decorative members 7 are laminated and fitted into the fitting recess 10 of the holding member 8, and a wristwatch case 1 which is a body ornament provided with a mounting recess 6 which is a mounting portion to which the holding member 8 of the decorative body 5 is attached are provided. Thus, the plurality of laminated decorative members 7 can be easily and favorably attached to the wristwatch case 1 by the holding member 8.

[0065] In the above-described embodiment, the case where the fixing portion 12 for fixing the plurality of laminated decorative members 7 in the fitting recess 10 of the holding member 8 includes a locking convex portion 12a provided in the fitting recess 10 and an engaging concave portion 12b provided in the uppermost decorative member 7 has been described. However, the present invention is not limited to this. For example, a structure in which a locking concave portion is provided in the fitting recess 10 and an engaging convex portion is provided in the decorative member 7 may be employed.

[0066] Also, in the above-described embodiment, the case where the plurality of laminated decorative members 7 are fixed in the fitting recess 10 of the holding member 8 by the engagement of the locking convex portion 12a and the engaging concave portion 12b of the fixing portion 12 has been described. However, the present invention is not limited to this. For example, a clamp portion 15 which is a member fixing portion as in the modification shown in FIG. 7 may be used to fix the plurality of laminated decorative members 7 in the fitting recess 10 of the holding member 8.

[0067] That is, as shown in FIG. 7, the clamp portion 15 of this modification is a caulking portion provided at the upper end portion of the rising portion 8b on the outer peripheral side of the holding member 8. The clamp portion 15 which is this caulking portion may be configured to fix the plurality of decorative members 7 in the fitting recess 10 of the holding member 8 in a state where the plurality of decorative members 7 are laminated and fitted into the fitting recess 10 of the holding member 8 by caulking the upper end portion of the rising portion 8b on the outer peripheral side of the holding member 8.

[0068] In addition, as shown in FIG. 7, the clamp portion 15 of this modification example is a leaf spring portion provided at the upper end portion of the rising portion 8b on the outer peripheral side of the holding member 8. When the plurality of decorative members 7 are laminated and fitted into the fitting recess 10 of the holding member 8, when fitting against the spring force of the leaf spring portion at the upper end portion of the rising portion 8b on the outer peripheral side of the holding member 8, among the plurality of laminated decorative members 7, the uppermost decorative member 7 may be pressed by the spring force of the leaf spring portion so that the plurality of laminated decorative members 7 are fixed in the fitting recess 10 of the holding member 8.

[0069] In the above-described embodiment, the case where the ultraviolet curable resin 13 is used as the photocurable resin having light transmissivity for fixing the plurality of decorative members 7 in the fitting recess 10 of the holding member 8 has been described. However, the present invention is not limited to this, and for example, an infrared curable resin having light transmissivity may be used. This infrared curable resin cures when irradiated with infrared rays.

[0070] In the above-described embodiment, the case where the holding member 8 of the decorative body 5 is fixed by being adhered with the adhesive 11 in the mounting recess 6 of the watch case 1 has been described. However, the present invention is not limited to this, and for example, the holding member 8 of the decorative body 5 may be adhered and fixed in the mounting recess 6 of the watch case 1 with a double-sided adhesive tape. In this case, since the double-sided adhesive tape has no fluidity, it is not necessary to provide the adhesive reservoir portion 6a on the inner surface of the mounting recess 6.

[0071] Furthermore, in the above-described embodiment, the case where it is applied to a watch has been described. However, the present invention does not necessarily have to be a watch, and for example, it can also be applied to ornaments such as bracelets, brooches, pendants, necklaces, and earrings.

[0072] As described above, one embodiment of the present invention has been described. However, the present invention is not limited to this, and includes the invention described in the claims and its equivalent scope. The invention described in the claims of the present application is appended below.

[0073] (Appended Note) The invention according to claim 1 is a decorative body including a decorative member formed of a brittle material having light transmissivity, characterized in that the decorative members are laminated in plurality.

[0074] The invention according to claim 2 is a decorative body according to the decorative body of claim 1, further including a holding member having a fixing portion to which the decorative member is fixed, characterized in that the decorative members are laminated in plurality within the fixing portion of the holding member.

[0075] The invention according to claim 3 is a decorative body according to the decorative body of claim 1 or claim 2, characterized in that the plurality of decorative members are decorated on the front and back surfaces.

[0076] The invention according to claim 4 is a decorative body according to the decorative body of claim 2, characterized in that the holding member is formed with the fixing portion by bending a metal plate.

[0077] The invention according to claim 5 is a decorative body according to the decorative body of claim 2 or claim 4, characterized in that the inner surface of the fixing portion is colored.

[0078] The invention according to claim 6 is a decorative body according to any one of the decorative bodies of claim 2, claim 4, and claim 5, characterized in that it includes a member fixing portion for fixing the plurality of decorative members within the fixing portion of the holding member.

[0079] The invention according to claim 7 is a decorative body according to the decorative body of claim 6, characterized in that the member fixing portion includes a locking portion provided on the inner surface of the fixing portion and an engaging portion provided on the outer peripheral surface of the decorative member and engaged with the locking portion.

[0080] The invention according to claim 8 is a decorative body according to the decorative body of claim 6, characterized in that the member fixing portion is a clamp portion for fixing the plurality of decorative members within the fixing portion.

[0081] The invention according to claim 9 is a decorative body according to any one of claims 2 and 4 to 8, wherein the plurality of decorative members are fixed in the fixing portion of the holding member by a photocurable resin having light transmissivity.

[0082] The invention according to claim 10 is a decorative body according to any one of claims 2 and 4 to 9, wherein the fixing portion is a fitting recess into which the decorative member is fitted and fixed.

[0083] The invention according to claim 11 is a decorative body according to any one of claims 1 to 10, wherein the plurality of decorative members are laminated on the body ornament.

[0084] The invention according to claim 12 is a method for manufacturing a decorative body, comprising: a first step of forming a holding member in which a fixing portion is formed by bending a metal plate; and a second step of laminating and fixing a plurality of decorative members made of a brittle material having light transmissivity to the fixing portion of the holding member.

[0085] The invention according to claim 13 is the method for manufacturing a decorative body according to claim 12, wherein in the second step, after applying a photocurable resin having light transmissivity to the inner surface of the fixing portion, the plurality of mounting members are laminated and fitted into the fixing portion, and in this state, light is irradiated through the plurality of decorative members to the photocurable resin to cure the photocurable resin, thereby fixing the laminated plurality of mounting members in the fixing portion.

[0086] The invention according to claim 14 is a body ornament comprising the decorative body according to any one of claims 2 and 4 to 10, and a body ornament main body provided with a mounting portion to which the holding member of the decorative body is attached.

[0087] The invention according to claim 15 is a timepiece comprising the decorative body according to any one of claims 1 to 11.

Description of Symbols

[0088] 1 Wristwatch case 2 Band attachment part 3 Switch part 4 Watch glass 5 Decorative body 6 Mounting recess 6a Adhesive reservoir part 7 Decorative member 7a Decorative layer 8 Holding member 8a Bottom part 8b, 8c Upright part 8d Notch part 9 Metal plate 10 Fitting recess 10a Colored layer 12 Fixing part 12a Locking projection 12b Engaging recess 13 Ultraviolet curable resin 15 Clamp part

Claims

1. A ring-shaped decorative body in which a plurality of decorative members having optical transparency are laminated; A watch case on which the ring-shaped ornament can be attached, Equipped with The decorative body includes a ring-shaped holding member having a fixing portion to which the decorative member is fixed, the wristwatch case is separate from the ring-shaped holding member and includes an attachment portion to which the ring-shaped holding member is attached, Each of the stacked decorative members is fixed by the fixing portion of the holding member. A wristwatch characterized by

2. 2. The wristwatch according to claim 1, The decorative member is made of a brittle material. A wristwatch characterized by

3. 2. The wristwatch according to claim 1, The decorative members are stacked in a plurality of layers within the fixing portion of the holding member. A wristwatch characterized by

4. In the wristwatch according to any one of claims 1 to 3, The decorative member is decorated on the front and back surfaces. A wristwatch characterized by

5. 4. The wristwatch according to claim 3, The holding member has the fixing portion formed by bending a metal plate. A wristwatch characterized by

6. In the wristwatch according to claim 3 or 5, The inner surface of the fixing portion is colored. A wristwatch characterized by

7. In the wristwatch according to any one of claims 3, 5 and 6, The decorative body includes a member fixing portion that fixes the decorative member within the fixing portion of the holding member. A wristwatch characterized by

8. 8. The wristwatch according to claim 7, The member fixing portion includes a locking portion provided on an inner surface of the fixing portion, and an engaging portion provided on an outer circumferential surface of the decorative member with which the locking portion engages. A wristwatch characterized by

9. 8. The wristwatch according to claim 7, The member fixing portion is a clamp portion that fixes the decorative member within the fixing portion. A wristwatch characterized by

10. In the wristwatch according to any one of claims 3 and 5 to 9, The decorative member is fixed in the fixing portion of the holding member by a light-curing resin having optical transparency. A wristwatch characterized by

11. In the wristwatch according to any one of claims 3 and 5 to 10, The fixing portion is a fitting recess into which the decorative member is fitted and fixed. A wristwatch characterized by

12. 2. The wristwatch according to claim 1, the watch case is ring-shaped; The attachment portion is formed in a ring shape along the outer periphery of the watch case. A wristwatch characterized by

13. 2. The wristwatch according to claim 1, The attachment portion is a mounting recess, The holding member is adhered and fixed in the mounting recess of the wristwatch case. A wristwatch characterized by

14. The wristwatch according to any one of claims 1 to 13, The decorative body is in the shape of a ring that surrounds the windshield. A wristwatch characterized by

15. In the wristwatch according to any one of claims 1 to 14, The shape of the watch case is a ring that surrounds the crystal. A wristwatch characterized by

Citation Information

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