Ornaments, methods for manufacturing ornaments, jewelry, and watches

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

Description

Technical Field

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

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 a mounting 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 mounting 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 a plurality of decorative members are simply arranged and fitted in the mounting recess of the watch case in a planar manner, only a planar decorative expression can be achieved, and thus there is a problem that the decorativeness is poor.

[0005] The problem to be solved by this invention is to provide an ornament with high decorativeness, a method for manufacturing the ornament, an ornament provided with the ornament, and a timepiece. [[ID=)]]

Means for Solving the Problems

[0006] To achieve the above objective, a wristwatch according to one aspect of the present invention comprises a ring-shaped decorative body having a first decorative member and a second decorative member having light transmittance laminated together, and a wristwatch case to which the ring-shaped decorative body is attached, wherein the decorative body comprises a ring-shaped retaining member having a locking portion, the first decorative member has an engaging portion, the second decorative member is positioned below the first decorative member, and the first decorative member and the second decorative member are fixed to the retaining member by the locking portion of the retaining member engaging with the engaging portion of the first decorative member.

Effects of the Invention

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

Brief Description of the Drawings

[0008] [Figure 1] This is an enlarged perspective view of a wristwatch that applies this invention. [Figure 2] This is an enlarged cross-sectional view of the wristwatch shown in Figure 1, taken along the line AA. [Figure 3] Figure 2 is an enlarged cross-sectional view showing the main parts of the watch case. [Figure 4] Figure 3 is an enlarged cross-sectional view of the main parts, showing the state in which the decorative element is attached to the watch case shown in Figure 3, in a disassembled state. [Figure 5] Figure 4 is an enlarged cross-sectional view of the main part, showing a disassembled state in which multiple decorative members are stacked and fitted into the holding member of the decorative body shown. [Figure 6] Figure 5 shows the retaining member of the decorative body, with (a) being an enlarged perspective view and (b) being an enlarged unfolded view. [Figure 7] This is an enlarged cross-sectional view of a key part showing a modified example of a decorative element in a wristwatch to which this invention is applied. [Modes for carrying out the invention]

[0009] Hereinafter, an embodiment of a wristwatch to which this invention is applied will be described with reference to Figures 1 to 6. This wristwatch is an accessory worn on the wrist, and as shown in Figures 1 and 2, it comprises a wristwatch case 1, which is the main body of the accessory. The 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] As shown in Figures 1 and 2, the lower case 1a of this watch case 1 is provided with band attachment sections 2 at the 12 o'clock and 6 o'clock positions, to which a watch band (not shown) can be attached. The lower case 1a of this watch case 1 is provided with switch sections 3 at the 2 o'clock, 3 o'clock, 4 o'clock, 8 o'clock, and 10 o'clock positions (8 o'clock and 10 o'clock positions are not shown).

[0011] Furthermore, as shown in Figures 1 and 2, a watch glass 4 is attached to the upper opening of the watch case 1, that is, the upper opening of the upper case 1b, via a gasket 4a. A case back (not shown) is attached to the bottom of the watch case 1. A watch module (not shown) is provided inside the watch case 1.

[0012] Incidentally, on the upper part of the watch case 1, that is, the upper part of the upper case 1b, as shown in Figures 1 to 3, a mounting recess 6, which is a mounting part to which the decorative element 5 is attached, is formed in a ring shape along the outer circumference of the watch case 1. In this case, the upper surface of the upper case 1b of the watch case 1 is formed as an inclined surface that slopes gently downward from the inner circumference side to the outer circumference side. For this reason, the mounting recess 6 has a roughly square cross-sectional shape, and the inner circumference side of the watch case 1 is formed slightly deeper than the outer circumference side.

[0013] As shown in Figures 3 to 6, the decorative body 5 comprises a plurality of decorative members 7 made of a light-transmitting brittle material, and a holding member 8 into which these plurality of decorative members 7 are laminated and fitted. The holding member 8 is a thin metal plate 9 (see Figure 6(b)) made of stainless steel, titanium alloy, aluminum alloy, etc., for example a metal plate 9 with a thickness of about 0.1 mm, and the entire structure is formed in a ring shape.

[0014] In other words, as shown in Figures 4 to 6, the retaining member 8 is formed by bending the inner and outer circumferences of a ring-shaped metal plate 9 to create a recessed fitting recess 10 (fixing part) with a concave cross-sectional shape. This fitting recess 10 is formed by the bottom 8a of the retaining member 8, the raised portion 8b on the inner circumference side of the retaining member 8, and the raised portion 8c on the outer circumference side of the retaining member 8, opening upwards.

[0015] In this case, as shown in FIGS. 6(a) and 6(b), a plurality of notch portions 8d for facilitating the bending 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. This 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] Further, as shown in FIGS. 3 to 5, this 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, this 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] As a result, 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 closely contacts 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, this adhesive 11 is applied with a slightly thick thickness to the bottom in the mounting recess 6 of the watch case 1, and when the holding member 8 is mounted in the mounting recess 6, it wraps around from the lower surface of the bottom portion 8a of the holding member 8 to the outer surfaces of the rising portion 8b on the inner peripheral side and the rising portion 8c on the outer peripheral side 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, at a location below the middle portion in the vertical direction on the inner peripheral surface within the mounting recess 6, an adhesive reservoir portion 6a is provided for accumulating the adhesive 11 that wraps around the outer surfaces of the rising portion 8b on the inner peripheral side and the 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.

[0020] As a result, as shown in FIGS. 3 and 4, when the holding member 8 is mounted within the mounting recess 6 and the adhesive 11 wraps around the outer surfaces of the rising portion 8b on the inner peripheral side and the 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, the adhesive 11 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, this coloring layer 10a may be provided over the entire bottom surface and both side surfaces within the fitting recess 10, or may be provided on a part of the bottom surface and both side surfaces within the fitting recess 10. Also, although not shown, this coloring layer 10a may be one color among seven colors such as red, orange, yellow, green, blue, indigo, violet, or twelve colors, etc., or may be partially different colors.

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

[0023] On the other hand, as shown in Figures 3 to 5, the multiple decorative members 7 are formed from gemstones such as sapphires, emeralds, rubies, and diamonds, glass such as highly transparent quartz glass, or brittle materials such as ceramics, and are made of brittle materials that are transparent or translucent and have light-transmitting properties. Each of these multiple decorative members 7 is formed in a ring shape and is approximately flat, with the same size as the fitting recess 10 of the retaining member 8. In this embodiment, two of the multiple decorative members 7 are stacked, but three or more may be stacked.

[0024] As shown in Figures 3 to 5, decorative layers 7a are provided on the top and bottom surfaces of each of the multiple decorative members 7. These decorative layers 7a are cut glass layers, or thin film layers such as printed or vapor-deposited layers with light-transmitting properties, such as patterns or figures. As a result, when the multiple decorative members 7 are stacked, each decorative layer 7a is visible from above, creating a three-dimensional decorative effect. In this case, the decorative layers 7a may be provided on all of the top and bottom surfaces of each of the multiple decorative members 7, or they may be provided partially on any of the top and bottom surfaces of each of the multiple decorative members 7.

[0025] Furthermore, as shown in Figures 3 to 5, each of these multiple decorative members 7 is provided with chamfered portions 7b at each corner of its upper and lower surfaces. In this case, the uppermost decorative member 7 among the multiple decorative members 7 has an inclined surface that slopes gently from the inner circumference to the outer circumference, similar to the upper surface of the watch case 1. As a result, when the multiple decorative members 7 are stacked on top of each other, the height of the inner circumference side is higher than the height of the outer circumference side.

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

[0027] In other words, as shown in Figures 3 and 4, when the multiple decorative members 7 are stacked and fitted into the fitting recess 10 of the retaining member 8, the upper end portion corresponding to the chamfered portion 7b on the inner circumference of the uppermost decorative member 7 is positioned to protrude above the rising portion 8b on the inner circumference side of the fitting recess 10.

[0028] Similarly, as shown in Figures 3 and 4, when the multiple decorative members 7 are stacked and fitted into the fitting recess 10 of the retaining member 8, the upper end portion of the uppermost decorative member 7, which is approximately corresponding to the chamfered portion 7b on the outer circumference of the upper surface, is positioned to protrude above the rising portion 8c on the outer circumference side of the fitting recess 10.

[0029] As a result, the decorative body 5 is configured such that, when the retaining member 8 is fitted into the mounting recess 6 of the watch case 1, the upper surface of the uppermost decorative member 7 that protrudes above the fitting recess 10 of the retaining member 8 is positioned at an inclination on approximately the same plane as the upper surface of the watch case 1. In other words, the decorative body 5 is configured such that even if the height of the retaining 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 positioned on approximately the same plane as the upper surface of the watch case 1.

[0030] Incidentally, as shown in Figures 3 to 5, the multiple decorative members 7 are configured to be fixed within the fitting recess 10 of the retaining member 8 by a fixing part 12, which is a member fixing part, when they are stacked and fitted into the fitting recess 10 of the retaining member 8. Specifically, this fixing part 12 includes a locking projection 12a provided on the rising portion 8c on the outer circumference side of the retaining member 8, which is the inner surface of the fitting recess 10, and projecting toward the inside of the fitting recess 10, and an engaging recess 12b provided along the circumferential direction on the outer circumference surface of the uppermost decorative member 7, into which the locking projection 12a of the fitting recess 10 engages.

[0031] As a result, as shown in Figures 3 to 5, when multiple decorative members 7 are fitted into the fitting recess 10 of the holding member 8 in a stacked state, the fixing part 12 is configured such that a locking projection 12a, which is provided in the fitting recess 10 and protrudes inward, engages with an engaging recess 12b provided on the outer peripheral surface of the uppermost decorative member 7, thereby fixing the multiple decorative members 7 in a stacked state within the fitting recess 10.

[0032] Furthermore, as shown in Figures 3 to 5, the multiple decorative members 7 are stacked and fitted into the fitting recesses 10 of the retaining member 8, and are also fixed within the fitting recesses 10 by an ultraviolet-curing resin 13, which is a photocurable resin, as an adhesive. That is, this ultraviolet-curing resin 13 has light-transmitting properties such as being transparent or semi-transparent, and hardens when irradiated with ultraviolet light, and is applied to almost the entire inner surface of the fitting recesses 10 of the retaining member 8.

[0033] Therefore, as shown in Figures 3 to 5, when ultraviolet light is irradiated from above the uppermost decorative member 7 while multiple decorative members 7 are stacked and fitted into the fitting recess 10 of the holding member 8, the ultraviolet light irradiated through the multiple decorative members 7 is irradiated onto the ultraviolet curing resin 13, causing the ultraviolet curing resin 13 to harden, fixing the stacked multiple decorative members 7 within the fitting recess 10, and preventing misalignment due to circumferential rattle of the multiple decorative members 7.

[0034] Next, we will explain how to manufacture such a wristwatch. The method for manufacturing this wristwatch comprises: a first step of forming a retaining member 8 by bending a metal plate 9 to form a fitting recess 10; a second step of forming a decorative body 5 by stacking and fitting a plurality of decorative members 7 into the fitting recess 10 of the retaining member 8; and a third step of attaching the decorative body 5 to the mounting recess 6 of the wristwatch case 1.

[0035] In other words, in the first step, as shown in Figures 6(a) and 6(b), the locking projection 12a (see Figure 5) of the fixing part 12 is formed in advance by press working at a location corresponding to the outer peripheral rising portion 8c located on the outer peripheral side of the bottom portion 8a of the ring-shaped metal plate 9. At the same time, a plurality of notches 8d are provided at predetermined intervals along the circumference at locations corresponding to the inner peripheral rising portion 8b and the outer peripheral rising portion 8c located on the inner and outer peripheral sides of the bottom portion 8a of the metal plate 9.

[0036] Then, as shown in Figures 5 and 6, the inner and outer periphery of the metal plate 9 are raised by bending processes such as press working, thereby forming raised portions 8b and 8c on the inner and outer periphery of the metal plate 9 at the location corresponding to the bottom portion 8a. At this time, the raised portions 8b on the inner periphery and 8c on the outer periphery of the metal plate 9 are easily and efficiently bent by the multiple notches 8d provided at each location corresponding to the raised portion 8b on the inner periphery and the raised portion 8c on the outer periphery, located on the inner and outer periphery sides of the bottom portion 8a of the metal plate 9.

[0037] As a result, in the first step, a retaining member 8 is formed in which a fitting recess 10 that is open to the upper side is formed by the bottom portion 8a of the metal plate 9, the rising portion 8b on the inner circumference side of the metal plate 9, and the rising portion 8c on the outer circumference side of the metal plate 9. At this time, a locking projection 12a is provided on the rising portion 8c on the outer circumference side of the retaining member 8, which is the inner surface of the fitting recess 10, projecting toward the inside of the fitting recess 10.

[0038] In this first step, a coloring layer 10a for coloring the multiple decorative members 7 is provided on the inner surface of the fitting recess 10 of the retaining member 8. This coloring layer 10a may be provided over the entire bottom surface and both sides of the fitting recess 10, or it may be provided over a portion of the bottom surface and both sides of the fitting recess 10. In this case, the coloring layer 10a may be a single color, or it may be partially different colors.

[0039] For example, the colored layer 10a may have different colors on the inner surface of the fitting recess 10, with the line connecting 12 o'clock and 6 o'clock as the boundary, or different colors on the upper and lower sides, with the line connecting 3 o'clock and 9 o'clock as the boundary, or the inner surface of the fitting recess 10 may be divided into multiple sections, and these divided sections may be colored differently. In this case, the colored layer 10a may have different colors in the areas corresponding to the hour markers from 1 o'clock to 12 o'clock and in the other areas, or each hour marker may have a different color.

[0040] In the second step, when fitting the multiple decorative members 7 into the fitting recess 10 of the retaining member 8, an engagement recess 12b is formed in advance on the outer circumferential surface of the uppermost decorative member 7, and the multiple decorative members 7 are stacked. At this time, the decorative layers 7a provided on the upper and lower surfaces of the multiple decorative members 7 are aligned, and the multiple decorative members 7 are stacked so that the decorative patterns and figures created by each decorative layer 7a are expressed in three dimensions. In this state, the stacked multiple decorative members 7 are temporarily fixed by bonding them together with a light-transmitting adhesive (not shown), such as a transparent or translucent adhesive.

[0041] Then, when fitting the stacked decorative members 7 into the fitting recess 10 of the retaining member 8, a light-transmitting, photocurable resin, specifically an ultraviolet-curing resin 13, is applied to almost the entire inner surface of the fitting recess 10 beforehand. In this state, the stacked decorative members 7 are fitted into the fitting recess 10 of the retaining member 8. At this point, the locking projection 12a provided on the rising portion 8c on the outer circumference of the retaining member 8 engages with the engagement recess 12b provided on the outer circumference of the uppermost decorative member 7, thereby fixing the stacked decorative members 7 within the fitting recess 10 of the retaining member 8.

[0042] At this time, the ultraviolet-curing resin 13 applied to almost the entire inner surface of the fitting recess 10 has not yet hardened and retains its fluidity. Therefore, when fitting the multiple laminated decorative members 7 into the fitting recess 10 of the retaining member 8, the multiple laminated decorative members 7 are smoothly and well fitted into the fitting recess 10 of the retaining member 8 without being affected by the ultraviolet-curing resin 13.

[0043] In this state, when ultraviolet light is shone from above the uppermost decorative member 7, the shone ultraviolet light penetrates the multiple stacked decorative members 7 and irradiates the ultraviolet-curing resin 13 applied to the inner surface of the fitting recess 10. As a result, the ultraviolet-curing resin 13 hardens due to the shone ultraviolet light, and the multiple stacked decorative members 7 are fixed within the fitting recess 10 of the holding member 8 by this hardened ultraviolet-curing resin 13, preventing misalignment due to circumferential rattle of the multiple decorative members 7. This forms the decorative body 5.

[0044] In the third step, the decorative element 5 is attached and secured to the mounting recess 6 of the watch case 1. At this time, as shown in Figure 4, a thick layer of adhesive 11 is applied to the bottom side of the inner surface of the mounting recess 6 of the watch case 1, and in this state, the retaining member 8 of the decorative element 5 is fitted into the mounting recess 6 of the watch case 1. Then, the adhesive 11 flows from the lower surface of the bottom 8a of the retaining member 8 to the outer surfaces of the rising portion 8b on the inner circumference of the retaining member 8 and the rising portion 8c on the outer circumference of the retaining member 8.

[0045] As shown in Figure 3, the excess adhesive 11 accumulates in an adhesive reservoir 6a located below the midpoint in the vertical direction on the inner circumferential surface of the mounting recess 6. This allows the retaining member 8 to be mounted in the mounting recess 6 and fixed in place by the adhesive 11. Even if the adhesive 11 flows from the lower surface of the bottom 8a of the retaining member 8 to the outer surfaces of the inner circumferential rising portion 8b and the outer circumferential rising portion 8c of the retaining member 8, it accumulates in the adhesive reservoir 6a of the mounting recess 6, preventing the adhesive 11 from leaking out to the upper side of the mounting recess 6.

[0046] Next, we will explain the function of the decorative element 5 of this wristwatch. In this decorative body 5, multiple decorative members 7 made of a light-transmitting brittle material are stacked and arranged within the fitting recess 10 of the holding member 8. As a result, the decorative layers 7a provided on the upper and lower surfaces of each of the multiple decorative members 7 are visible from above, creating a three-dimensional decorative effect. This enhances the decorative appeal.

[0047] In this case, a colored layer 10a is provided on the inner surface of the fitting recess 10 of the retaining member 8, and this colored layer 10a colors the multiple decorative members 7 laminated within the fitting recess 10 of the retaining member 8. This also enhances the decorative effect. In this case, the colored layer 10a may be provided in a single color over almost the entire inner surface of the fitting recess 10 to color the multiple decorative members 7 in a single color, or the colored layer 10a may be provided in different colors in parts of the inner surface of the fitting recess 10 to color the multiple decorative members 7 in partially different colors.

[0048] For example, the colored layer 10a may be applied to the inner surface of the fitting recess 10 with different colors in the left-right direction, using a line connecting the 12 o'clock and 6 o'clock positions as the boundary, thereby coloring multiple decorative members 7 with different colors in the left-right direction. Alternatively, the colored layer 10a may be applied to the top-bottom direction, using a line connecting the 3 o'clock and 9 o'clock positions as the boundary, thereby coloring multiple decorative members 7 with different colors in the top-bottom direction. Furthermore, the colored layer 10a may be applied to the inner surface of the fitting recess 10 by dividing it into multiple sections, and these divided sections may be colored with different colors, thereby partially coloring multiple decorative members 7 with different colors. These methods also enhance the decorative effect.

[0049] Thus, according to the decorative body 5 of this wristwatch, a decorative member 7 made of a light-transmitting brittle material and a retaining member 8 having a fitting recess 10 into which the decorative member 7 is fitted and fixed, and since multiple decorative members 7 are stacked within the fitting recess 10 of the retaining member 8, a highly decorative product can be provided.

[0050] In other words, in the decorative body 5 of this wristwatch, since the multiple decorative members 7 are made of a brittle material that transmits light, even if the multiple decorative members 7 are stacked, these stacked decorative members 7 can be seen through, and as a result, a three-dimensional decorative expression can be created by the stacked decorative members 7, thus providing a highly decorative product.

[0051] In this case, the decorative body 5 of this wristwatch has decorative layers 7a provided on the front and back surfaces (top and bottom surfaces) of multiple decorative members 7, allowing for different decorative expressions for each stacked decorative member 7, and enabling a three-dimensional decorative expression for the entire stacked set of decorative members 7. As a result, the multiple decorative layers 7a provided on the top and bottom surfaces of each of the multiple decorative members 7 enable a three-dimensional decorative expression, making it possible to provide an even more decorative product.

[0052] Furthermore, in the decorative part 5 of this wristwatch, the retaining member 8 has a fitting recess 10 formed by bending the metal plate 9, which allows the thickness of the metal plate 9 to be reduced, thereby reducing the thickness of the retaining member 8, and also allows the fitting recess 10 to be easily manufactured. In other words, even if the retaining member 8 is ring-shaped, the retaining member 8 can be easily formed by bending the inner and outer sides of the retaining member 8 by providing a plurality of notches 8d at predetermined intervals along the circumferential direction at locations corresponding to the inner side rising portion 8b and the outer side rising portion 8c of the ring-shaped metal plate 9.

[0053] Furthermore, in the decorative body 5 of this wristwatch, the inner surface of the fitting recess 10 is colored with a colored layer 10a, which allows the entire surface of the multiple light-transmitting decorative members 7 to be colored, thereby enhancing the decorative effect. In this case, the colored layer 10a may be applied in a single color to almost the entire inner surface of the fitting recess 10, thereby coloring the multiple laminated decorative members 7 in a single color, or it may be applied in a different color to the inner surface of the fitting recess 10, thereby coloring the multiple laminated decorative members 7 in partially different colors.

[0054] In other words, in the decorative element 5 of this wristwatch, for example, the colored layer 10a may be made different colors in the left-right direction on the inner surface of the fitting recess 10, with the line connecting 12 o'clock and 6 o'clock as the boundary, thereby coloring the multiple stacked decorative members 7 in different colors in the left-right direction. Alternatively, the colored layer 10a may be made different colors in the up-down direction with the line connecting 3 o'clock and 9 o'clock as the boundary, thereby coloring the multiple stacked decorative members 7 in different colors in the up-down direction. Furthermore, the colored layer 10a may be made by dividing the inner surface of the fitting recess 10 into multiple sections, and these divided sections may be made different colors, thereby partially coloring the multiple stacked decorative members 7 in different colors. These methods can also enhance the decorative effect.

[0055] Furthermore, the decorative body 5 of this wristwatch is equipped with a fixing part 12 that secures multiple decorative members 7 within the fitting recess 10 of the retaining member 8. This fixing part 12 ensures that the multiple decorative members 7 are securely and well fixed within the fitting recess 10 of the retaining member 8 in a stacked state.

[0056] In other words, in the decorative body 5 of this wristwatch, the fixing part 12 is provided with a locking projection 12a on the inner surface of the fitting recess 10 and an engaging recess 12b provided on the outer circumferential surface of the uppermost decorative member 7 among the multiple decorative members 7, into which the locking projection 12a engages. As a result, when multiple decorative members 7 are stacked and fitted into the fitting recess 10, the locking projection 12a of the fitting recess 10 can be engaged with the engaging recess 12b of the uppermost decorative member 7, so that the stacked multiple decorative members 7 can be easily and securely fixed into the fitting recess 10 of the holding member 8.

[0057] Furthermore, in the decorative body 5 of this wristwatch, multiple decorative members 7 are laminated and fixed within the fitting recess 10 of the retaining member 8 by ultraviolet curing resin 13, which is a photocurable resin. This allows the multiple laminated decorative members 7 to be fixed within the fitting recess 10 of the retaining member 8 by the ultraviolet curing resin 13, thus preventing misalignment due to circumferential rattle in the multiple decorative members 7. In this case, since the ultraviolet curing resin 13 has transparent or translucent light transmittance, even if a colored layer 10a is provided on the inner surface of the fitting recess 10, the multiple laminated decorative members 7 can be colored through the ultraviolet curing resin 13.

[0058] Furthermore, the manufacturing method for the decorative element 5 in this wristwatch includes a first step of forming a retaining member 8 with a fitting recess 10 by bending a metal plate 9, and a second step of stacking and fitting multiple decorative elements 7 made of a light-transmitting brittle material into the fitting recess 10 of the retaining member 8 to secure them. As a result, the structure of the retaining member 8 is simple, the retaining member 8 can be easily manufactured, and multiple decorative elements 7 can be easily and well stacked and attached to the retaining member 8.

[0059] In this case, in the first step, multiple notches 8d are provided in advance at predetermined intervals along the circumference at locations corresponding to the rising portion 8b on the inner circumference side and the rising portion 8c on the outer circumference side, located on the inner circumference side and outer circumference side of the bottom portion 8a of the ring-shaped metal plate 9. In this state, the inner circumference and outer circumference of the metal plate 9 are raised by bending processes such as press working, so that the rising portions 8b and 8c can be easily and well formed on the inner circumference and outer circumference of the location corresponding to the bottom portion 8a of the metal plate 9.

[0060] In other words, at this time, the multiple notches 8d provided at each location corresponding to the inner circumferential rising portion 8b and the outer circumferential rising portion 8c located on the inner and outer circumferential sides of the bottom portion 8a of the metal plate 9 allow the inner circumferential rising portion 8b and the outer circumferential rising portion 8c of the ring-shaped metal plate 9 to be easily and well bent, even if the metal plate 9 is a flat ring-shaped plate. As a result, the fitting recess 10, which is open to the upper side, can be formed accurately and well by the bottom portion 8a of the metal plate 9, the inner circumferential rising portion 8b of the metal plate 9, and the outer circumferential rising portion 8c of the metal plate 9.

[0061] Furthermore, in the second step, the decorative layers 7a provided on the front and back surfaces (top and bottom surfaces) of each of the multiple decorative members 7 can be aligned, and the multiple decorative members 7 can be stacked so that decorative patterns and figures created by each decorative layer 7a are expressed in three dimensions. In this state, the multiple decorative members 7 can be temporarily fixed by bonding them together with a light-transmitting adhesive (not shown), such as a transparent or translucent adhesive.

[0062] Therefore, in this second step, when the stacked decorative members 7 are fitted into the fitting recess 10 of the retaining member 8, the locking projection 12a of the fixing part 12 provided on the rising part 8c of the outer circumference of the retaining member 8 can be engaged with the engaging recess 12b of the fixing part 12 provided on the outer circumference of the uppermost decorative member 7 among the stacked decorative members 7, so that the stacked decorative members 7 can be securely and well fixed within the fitting recess 10 of the retaining member 8.

[0063] Furthermore, in the manufacturing method of the decorative body 5 in this wristwatch, in the second step, a photocurable resin with light transmittance, which is an ultraviolet-curable resin, is applied to the inner surface of the fitting recess 10. Then, multiple decorative members 7 are stacked and fitted into the fitting recess 10. In this state, ultraviolet light is irradiated onto the ultraviolet-curable resin 13 through the multiple decorative members 7 to cure the ultraviolet-curable resin 13. As a result, the multiple decorative members 7 can be fixed in the fitting recess 10 by the cured ultraviolet-curable resin 13, thereby preventing misalignment due to circumferential rattle of the multiple decorative members 7.

[0064] Furthermore, this wristwatch includes a decorative body 5 in which multiple decorative members 7 are stacked and fitted into a fitting recess 10 of a retaining member 8, and a wristwatch case 1 which is an accessory body and is provided with a mounting recess 6 which is an attachment part to which the retaining member 8 of the decorative body 5 is attached. As a result, the stacked multiple decorative members 7 can be easily and well attached to the wristwatch case 1 by the retaining member 8.

[0065] In the above-described embodiment, the fixing portion 12 that fixes the stacked decorative members 7 into the fitting recess 10 of the holding member 8 is described as having a locking projection 12a provided in the fitting recess 10 and an engaging recess 12b provided in the uppermost decorative member 7. However, the present invention is not limited to this, and for example, a structure in which the locking recess is provided in the fitting recess 10 and the engaging projection is provided in the decorative member 7 may also be used.

[0066] Furthermore, in the above-described embodiment, the case in which a plurality of stacked decorative members 7 are fixed in the fitting recess 10 of the holding member 8 by the engagement of the locking projection 12a and the engaging recess 12b of the fixing part 12, is described. However, the present invention is not limited to this, and for example, the clamp part 15, which is a member fixing part as shown in the modified example in Figure 7, may be used to fix a plurality of stacked decorative members 7 in the fitting recess 10 of the holding member 8.

[0067] In other words, the clamp portion 15 in this modified example is a crimping portion provided at the upper end of the rising portion 8b on the outer circumference of the retaining member 8, as shown in Figure 7. This crimping portion, the clamp portion 15, may be configured to fix the stacked decorative members 7 within the fitting recess 10 of the retaining member 8 by crimping the upper end of the rising portion 8b on the outer circumference of the retaining member 8 while the stacked decorative members 7 are fitted into the fitting recess 10 of the retaining member 8.

[0068] Furthermore, in this modified example, the clamp portion 15 is a leaf spring portion provided at the upper end of the rising portion 8b on the outer circumference of the retaining member 8, as shown in Figure 7. When stacking multiple decorative members 7 and fitting them into the fitting recess 10 of the retaining member 8, the clamp portion 15, which is a leaf spring portion, may be configured such that when fitted against the spring force of the leaf spring portion at the upper end of the rising portion 8b on the outer circumference of the retaining member 8, the uppermost decorative member 7 of the stacked decorative members 7 is pressed down by the spring force of the leaf spring portion, thereby fixing the stacked multiple decorative members 7 into the fitting recess 10 of the retaining member 8.

[0069] Furthermore, in the above-described embodiment, an ultraviolet-curable resin 13 was used as the light-transmitting photocurable resin for fixing a plurality of decorative members 7 within the fitting recess 10 of the retaining member 8. However, this invention is not limited to this, and for example, an infrared-curable resin that is light-transmitting may be used. This infrared-curable resin hardens when irradiated with infrared light.

[0070] Furthermore, although the above-described embodiment mentions a case where the retaining member 8 of the decorative body 5 is fixed by adhesive 11 within the mounting recess 6 of the watch case 1, the present invention is not limited to this, and for example, the retaining member 8 of the decorative body 5 may be fixed by adhesive using double-sided adhesive tape within the mounting recess 6 of the watch case 1. In this case, since the double-sided adhesive tape is not fluid, it is not necessary to provide an adhesive reservoir 6a on the inner surface of the mounting recess 6.

[0071] Furthermore, although the embodiments described above described the application to a wristwatch, this invention is not necessarily limited to a wristwatch and can also be applied to other accessories such as bracelets, brooches, pendants, necklaces, and earrings.

[0072] Although one embodiment of the present invention has been described above, the present invention is not limited thereto and includes the invention described in the claims and its equivalents. The invention described in the claims of this application is listed below.

[0073] (Note) The invention described in claim 1 is a decorative body comprising a decorative member formed of a light-transmitting brittle material, wherein a plurality of decorative members are laminated together.

[0074] The invention described in claim 2 is a decorative body according to claim 1, further comprising a holding member having a fixing portion to which the decorative member is fixed, wherein a plurality of the decorative members are stacked within the fixing portion of the holding member.

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

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

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

[0078] The invention described in claim 6 is a decorative body according to any one of claims 2, 4, or 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 described in claim 7 is a decorative body according to claim 6, characterized in that the member fixing portion comprises a locking portion provided on the inner surface of the fixing portion and an engaging portion provided on the outer circumferential surface of the decorative member with which the locking portion engages.

[0080] The invention described in claim 8 is a decorative body described in 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 described in claim 9 is a decorative body according to any one of claims 2, 4 to 8, characterized in that the plurality of decorative members are fixed within the fixing portion of the holding member by a light-transmitting photocurable resin.

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

[0083] The invention described in claim 11 is a decorative body according to any one of claims 1 to 10, characterized in that the decorative members are stacked in multiple layers on the body of the jewelry.

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

[0085] The invention described in claim 13 is a method for manufacturing a decorative body as described in claim 12, characterized in that in the second step, a light-transmitting photocurable resin is applied to the inner surface of the fixing part, the plurality of mounting members are stacked and fitted into the fixing part, and in this state, light is irradiated onto the photocurable resin through the plurality of decorative members to cure the photocurable resin and fix the stacked plurality of mounting members into the fixing part.

[0086] The invention described in claim 14 is an accessory characterized by comprising a decorative body described in any of claims 2, 4 to 10, and an accessory body provided with a mounting portion to which the holding member of the decorative body is attached.

[0087] The invention described in claim 15 is a clock characterized by comprising a decorative body as described in any one of claims 1 to 11. [Explanation of symbols]

[0088] 1 Watch Case 2 Band mounting section 3. Switch section 4. Watch glass 5. Ornament 6 Mounting recess 6a Adhesive reservoir 7. Decorative components 7a Decoration layer 8 Retaining member 8a bottom 8b, 8c Rising section 8d Notch 9 metal plate 10 Fitting recess 10a Colored layer 12 Fixed part 12a Locking protrusion 12b Engaging recess 13 Ultraviolet curing resin 15. Clamp section

Claims

1. A ring-shaped decorative body comprising a first decorative member and a second decorative member having light-transmitting properties, A watch case to which the aforementioned ring-shaped ornament is attached, Equipped with, The decorative body comprises a ring-shaped retaining member having a locking portion, The first decorative member has an engaged portion, The second decorative member is positioned below the first decorative member. The first decorative member and the second decorative member are fixed to the retaining member by the engagement of the engaging portion of the first decorative member with the locking portion of the retaining member. A wristwatch characterized by the following features.

2. In the wristwatch according to claim 1, The locking portion of the retaining member is a locking projection, The engaged portion of the first decorative member is an engaging recess, The second decorative member does not have the engagement recess. A wristwatch characterized by the following features.

3. In the wristwatch according to claim 1 or 2, The first decorative member and the second decorative member are provided with chamfered edges at each corner of their upper and lower surfaces. A wristwatch characterized by the following features.

4. In the wristwatch according to any one of claims 1 to 3, The first decorative member and the second decorative member have decorative layers on their upper and lower surfaces. A wristwatch characterized by the following features.

5. In the wristwatch according to any one of claims 1 to 4, The first decorative member and the second decorative member are formed from a brittle material. A wristwatch characterized by the following features.

6. In the wristwatch according to any one of claims 1 to 5, The watch case is separate from the ring-shaped retaining member and includes a mounting portion to which the ring-shaped retaining member is attached. A wristwatch characterized by the following features.

7. In the wristwatch according to claim 6, The aforementioned watch case is ring-shaped, The mounting portion is formed in a ring shape along the outer circumference of the watch case. A wristwatch characterized by the following features.

8. In the wristwatch according to claim 6 or 7, The aforementioned mounting portion is a mounting recess, The retaining member is bonded and fixed within the mounting recess of the watch case. A wristwatch characterized by the following features.

9. In the wristwatch according to any one of claims 1 to 8, The shape of the decorative element is a ring that surrounds the windshield. A wristwatch characterized by the following features.

10. In a wristwatch according to any one of claims 1 to 9, The shape of the aforementioned watch case is ring-shaped, surrounding the crystal. A wristwatch characterized by the following features.

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