Timepiece member, timepiece, and method of manufacturing timepiece member

Abstract

To provide a timepiece member capable of expressing patterns by combining various shapes, and a method of manufacturing the timepiece member.SOLUTION: A timepiece member (bezel 13) is provided, comprising a translucent base material having a pattered section (131b) comprising a plurality of display areas (processed areas 134-137) with different surface conditions exhibiting different appearance or texture, where the patterned section exhibits a predetermined pattern made up of an assembly of the plurality of display areas (processed areas 134-137). The base material has a coloring layer provided across the plurality of display areas on a surface thereof.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a timepiece component, a timepiece, and a method for manufacturing a timepiece component. [Background technology]

[0002] 2. Description of the Related Art Conventionally, in timepiece components such as exterior components of timepieces, various patterns are formed by processing the surfaces.

[0003] It is desirable for such timepiece components to be able to express an even greater variety of exterior designs. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 58-221689 Summary of the Invention [Problem to be solved by the invention]

[0005] The object is to provide a timepiece component, a timepiece, and a method for manufacturing a timepiece component that are capable of expressing a variety of exterior designs. [Means for solving the problem]

[0006] A watch component according to one embodiment of the present invention includes a translucent base material, the base material having a plurality of display areas with different surface conditions and presenting different appearances or textures, a pattern portion presenting a predetermined pattern by the aggregation of the plurality of display areas, and a coloring layer is provided on the surface of the base material so as to span the plurality of display areas.

[0007] A timepiece according to another aspect of the present invention comprises a case, a timepiece module housed within the case, and the timepiece component according to any one of claims 1 to 7 attached to the case.

[0008] A manufacturing method for a watch component according to another embodiment of the present invention involves performing laser processing on a plurality of display areas under mutually different processing conditions so that a predetermined pattern is presented by a collection of a plurality of display areas partitioned from one another in a target area on the surface of a base material.

[0009] A method for manufacturing a watch according to another embodiment of the present invention involves performing laser processing on a plurality of display areas partitioned from one another in a target area on the surface of a base material under mutually different processing conditions so as to present a predetermined pattern as a collection of the plurality of display areas, and assembling a watch component having the base material into a case inside which a watch module and a dial are housed. Effect of the Invention

[0010] According to the present invention, it is possible to provide a timepiece component, a timepiece, and a method for manufacturing a timepiece component that are capable of expressing a variety of exterior designs. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing the configuration of a timepiece according to an embodiment. [Diagram 2] FIG. 2 is a plan view showing the configuration of the timepiece. [Diagram 3] FIG. 2 is a cross-sectional view showing the configuration of the timepiece. [Figure 4] FIG. 2 is a plan view of a bezel according to the embodiment. [Diagram 5] 5A and 5B are explanatory diagrams of a pattern portion of a bezel according to an embodiment. [Figure 6] FIG. 2 is a cross-sectional view showing the configuration of the bezel of the watch. [Figure 7] FIG. 4 is a bottom view showing a pattern portion of the bezel according to the embodiment. [Figure 8] 5A to 5C are explanatory diagrams showing a method for manufacturing a bezel according to an embodiment. [Figure 9] 5A to 5C are explanatory diagrams showing a method for manufacturing a bezel according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Below, a timepiece 1 as a device according to a first embodiment of the present invention, and a manufacturing method for the timepiece 1 will be described with reference to Figs. 1 to 8. Fig. 1 is a perspective view showing the configuration of the timepiece 1, and Fig. 2 is a plan view showing the configuration of the timepiece. Fig. 3 is a cross-sectional view showing the configuration of the timepiece, and Fig. 4 is a plan view of the bezel 13. Fig. 5 is a view of the patterned portion of the bezel from the back, and Fig. 6 is a cross-sectional view of the bezel. Fig. 7 is a bottom view showing the patterned portion 131b of the bezel, and Figs. 8 and 9 are explanatory diagrams showing the manufacturing method for the bezel.

[0013] In the drawings, the X-axis, Y-axis, and Z-axis indicate three mutually orthogonal directions. In each drawing, the X-axis is shown along the 3-9 o'clock direction of an analog clock, the Y-axis is shown along the 12-6 o'clock direction, and the Z-axis is shown along the front-back direction (first direction) of clock 1 as an example. Note that in each drawing, the configuration is shown in a schematic manner, enlarged, reduced, or omitted as appropriate.

[0014] In this embodiment, watch 1 will be described with the back cover 12 side as the back side and the side facing the outer surface of cover 14 such as the windshield member as the front side. For example, watch 1 is worn on the arm with the outer surface of back cover 12 facing the arm on which it is worn.

[0015] 1 to 3 is, for example, a wristwatch worn on a user's wrist. Watch 1 comprises a watch case 10, a display unit 15 provided inside watch case 10, and a watch module 20. Watch 1 also comprises a watch band connected to the outer periphery of watch case 10, and multiple switches and a crown 16 arranged on the outer periphery of watch case 10.

[0016] The watch case 10 is configured in a circular shape and has a center case 11 as a center member arranged on the outer periphery of the watch module 20, a back cover 12 arranged on the back side (rear side) of the watch module 20, a bezel 13 as an equipment member arranged on the outer periphery of the front side of the center case 11, and a cover 14 covering the front side (front side) of the watch module 20 and display unit 15. The center case 11 and back cover 12 of the watch case 10 form an accommodation space in which the watch module 20 and display unit 15 are arranged.

[0017] For example, watch 1 is configured in a circular shape with a central axis along one direction, and center case 11, back cover 12, bezel 13, and cover 14 that make up watch case 10 are each configured in a concentric or nearly concentric shape. Note that the shape of watch 1 and each of its components is not limited to a circle, and may be rectangular or another shape.

[0018] The center case 11 is configured in a frame shape with an opening in the center. The front side of the opening of the center case 11 is covered with a cover 14, and the back side is covered with a back cover 12, thereby forming a storage space 11a (storage section) inside which the watch module 20 and display unit 15 are disposed. The center case 11 may be configured by combining multiple members. For example, the center case 11 includes a first case member 111 and a second case member 112.

[0019] The first case member 111 is made of a metal material such as titanium, and is configured in a cylindrical shape with an axis along one direction. The first case member 111 has, for example, a peripheral wall portion disposed on the outer periphery of the watch module 20 and the display unit 15. The first case member 111 has, at the end on the back side, an annular holding portion 111a that engages with the back cover 12. For example, the holding portion 111a is formed on the edge portion on the back side of the inner periphery of the first case member 111, and has an engagement structure that engages with an engagement tube portion 1213 of the back cover 12. The holding portion 111a holds the back cover 12 that is fitted via a connecting member 51 such as a packing or adhesive. On the front side of the first case member 111, the second case member 112 is disposed.

[0020] The second case member 112 is made of a metal material such as titanium and has a cylindrical shape having an axis along one direction. For example, the second case member 112 has a peripheral wall portion disposed on the outer periphery of the cover 14.

[0021] The second case member 112 has a circumferential groove-shaped recess 113 that opens to the front side and in which the bezel 13 is disposed. For example, the recess 113 is configured to have a predetermined shape that conforms to the shape of the bezel 13. As an example, the recess 113 has a first peripheral surface 113a that faces the inner peripheral surface 13c of the bezel 13, a seating surface 113b that faces the back surface 13b of the bezel 13, and a second peripheral surface 113c that conforms to the outer peripheral surface 13d of the bezel. The seating surface 113b forms a plane that is perpendicular to the first direction. The first peripheral surface 113a forms an outer wall surface that rises from the seating surface 113b to the front side along the axial direction. The second peripheral surface 113c forms an inner wall surface that rises from the seating surface 113b to the front side along the axial direction.

[0022] In addition, the second case member 112 has a retaining frame 114 on the inner circumferential side of the front side, which retains the cover 14 via a connecting member 52 which is a waterproof member such as a packing. That is, the cover 14 is attached to the inner circumferential side of the front side of the peripheral wall portion via a connecting member 52 such as a packing.

[0023] As an example, each component such as center case 11, back cover 12, bezel 13, cover 14, and dial 17 is concentric, or in the case of a rectangular shape such as an octagon, has the same shape, and is shaped to fit the outer shape of the components to be assembled together.

[0024] The back cover 12 is a plate-like member that covers the back side of the center case 11 and the watch module 20. For example, the back cover 12 is made of a metal material, and integrally includes a plate portion 1212 that is formed in a plate shape and forms the bottom of the watch case 10, and an engagement tube portion 1213 that stands on the front side from the outer periphery of the plate portion 1212.

[0025] The engagement tube portion 1213 is a tubular member that protrudes to the front side. For example, the engagement tube portion 1213 engages with the first case member 111 of the center case 11. The engagement tube portion 1213 is inserted into an opening on the back side of the center case 11 and fixed to the center case 11 by fastening, bonding, joining, or the like. For example, the back cover 12 is joined to the center case 11 via a connecting member 51 such as a packing or adhesive.

[0026] 1 to 6, the bezel 13 is configured in the shape of a ring plate having an opening. For example, the bezel 13 is an example of an exterior member, and protects and supports various components such as the cover 14. The bezel 13 is attached to the outer periphery of the front side of the center case 11. Specifically, the bezel 13 is disposed in a recess 113 formed in the second case member 112. The bezel 13 is fixed to the center case 11, for example, by adhesion or by various fastening members. As an example, the bezel 13 is joined to the center case 11 via a connecting member such as an adhesive or a fastening member.

[0027] The bezel 13 includes a bezel base 131 made of a light-transmitting material, and a coating portion (coloring layer) 132 formed on a surface 13a of the bezel base 131.

[0028] The bezel base 131 is made of a light-transmitting material that transmits visible light, and is formed in a circular or polygonal ring shape. The bezel base 131 is made of, for example, sapphire glass, which has a single crystal structure. As a specific example, as shown in FIG. 6, the bezel base 131 has a front surface 13a, a back surface 13b, an inner peripheral surface 13c, and an outer peripheral surface 13d, and is formed in a ring shape having a rectangular cross section. Corners formed between the front surface 13a and the inner peripheral surface 13c, the front surface 13a and the outer peripheral surface 13d, the back surface 13b and the inner peripheral surface 13c, and the back surface 13b and the outer peripheral surface 13d are chamfered to form tapered surfaces 13e, 13f, 13g, and 13h, respectively. The outer surface of the bezel 13 is mirror-finished to a predetermined smoothness. For example, the bezel 13 is configured to have a thickness, which is an axial dimension, of 1.4 mm or more. For example, the thickness is 2 mm or more, and preferably 3 mm or more. Bezel 13 is configured to have the same shape as recess 113 of second case member 112 in a plan view.

[0029] An inner peripheral surface 13c of the bezel 13 is configured as a curved surface extending in the axial direction and has the same diameter as a first peripheral surface 113a of the recess 113. An outer peripheral surface 13d of the bezel 13 is configured as a curved surface extending in the axial direction and has approximately the same diameter as a second peripheral surface 113c of the recess 113. In other words, the dimensions are configured such that there is a very small gap between the outer surface of the bezel 13 and the inner surface of the recess 113, or there is almost no gap between them.

[0030] A pattern portion 131b is formed on the surface of the bezel base 131. The pattern portion 131b is provided on the surface that will become the inside when assembled into the watch 1. For example, the pattern portion 131b is provided on an inside surface that is not exposed to the outside and is disposed inside the watch case 10 of the watch 1, or disposed opposite another component. As an example, the pattern portion 131b is provided on the back surface 13b of the bezel base 131. As an example, the pattern portion 131b is formed over the entire back surface 13b of the bezel 13.

[0031] 5 to 7, the pattern portion 131b is a collection of multiple processed areas 134-137 (display areas) having different surface processing conditions, and when viewed as a whole, the pattern portion 131b presents a predetermined pattern due to the contrast generated between the multiple processed areas 134-137 having different surface conditions.

[0032] The surface condition includes at least one of, for example, the surface shape, the surface position (depth), the surface roughness, the light reflection characteristics on the surface, the light scattering characteristics, the light interference characteristics, the brightness, and the saturation, and by varying any of these, different textures such as different textures are presented for each of the processed regions 134 to 137. As an example, the pattern portion 131b according to the embodiment forms a crystal-like pattern by four types of processed regions 134 to 137.

[0033] The multiple processing regions 134-137 have multiple unit regions 134a-137a that are arranged in a scattered manner. In FIG. 7, the multiple unit regions 134a-137a that belong to the same processing region 134-137 are shown with the same type of hatching. The multiple unit regions that belong to the same processing region are processed under the same processing conditions and have the same or a common surface state. That is, the first processing region 134 is composed of multiple scattered unit regions 134a, and the multiple unit regions 134a are processed under common processing conditions and have a common appearance. The multiple processing regions 134-137 are formed into different surface shapes under different processing conditions. For example, the multiple processing regions 134-137 are set at positions that do not overlap each other. The pattern portion 131b is an aggregate of the unit processing areas 134a-137a of the plurality of processing areas 134-137, and is visually recognized as presenting a predetermined pattern such as a crystal pattern, a fiber pattern, or a camouflage pattern when viewed as a whole.

[0034] In this embodiment, as an example, a crystal pattern is formed in the pattern portion 131b by a collection of a plurality of unit processing areas 134a-137a partitioned into polygonal shapes of irregular shapes and sizes. That is, the pattern portion 131b is composed of a collection of a plurality of unit areas 134a-137a, and at least one of the unit areas 134a-137a has a polygonal shape. That is, at least a part of the boundary line between the plurality of processing areas 134-137 and between the unit areas 134a-137a has a bent corner.

[0035] The multiple processed areas 134 to 137 are formed by laser processing, which is an example of surface processing. For example, the surface processing is performed using a processing device such as a laser processing machine that can set the processing area and processing conditions. The processing device is configured to be able to set various conditions for each area, such as the intensity of the irradiated light, the type of light, output, etching depth, scanning direction, scanning distance, and scanning pitch, as condition settings.

[0036] Furthermore, for example, in a processing device, various surface conditions can be formed by selecting processing conditions such as honing, hairline, hologram, etc. for each region as condition settings, or by selecting and setting the processing stage.

[0037] As shown in FIG. 4 and FIG. 6, the coating portion 132 is formed on the back surface 13b of the bezel base 131. The coating portion 132 reflects light in a certain wavelength range included in visible light, and is a blue thin film in this embodiment. As an example, the coating portion 132 is a metal vapor deposition film formed by, for example, a vapor deposition process. The coating portion 132 is disposed so as to overlap the back surface of the pattern portion 131b formed on the back surface of the bezel base 13. The coating portion 132 may be formed on the back surface 13b of the bezel 13, as well as on the tapered surfaces 13f and 13g on the back side. For example, the coating portion 132 is provided so as to span a plurality of display areas.

[0038] The coating portion 132 functions as a coloring layer. The coating portion 132 may be colored by, for example, stacking a plurality of films to cause coloring through interference, or by forming a visible single-layer film. The coating portion 132 may be formed by a known method such as vapor deposition or sputtering. The method of forming the coating portion 132 is not limited to these exemplified methods, and the film forming method and the material used for film formation may be appropriately selected so that the coating portion 132 or the back surface 13b of the bezel base 131 after film formation can be visually recognized as a desired color.

[0039] 4 and 6, the rear surface 13b of the bezel 13 may have an etched portion 132a formed by removing a portion of the coating portion 132. For example, in the coating portion 132 on the rear surface of the bezel 13, the etched portion 132a is formed by removing a portion of the coating portion 132 in a pattern corresponding to the shape of a symbol such as a letter or a scale, so that the shape of the symbol such as the letter or the scale can be visually recognized from the front surface side.

[0040] The display unit 15 includes a dial 17 that displays information such as the time and date, and hands. The dial 17 is configured in the shape of a circular or polygonal plate, and is located at the top of the accommodation space 11a of the center case 11. A partition member with various hour characters is located on the outer periphery of the front surface, which is one side of the dial 17. The hands include needles that rotate while being supported by a pointer shaft located in the center of the dial 17.

[0041] Clock module 20 includes various components necessary for clock functions, such as a movement that operates display unit 15, a circuit board equipped with electronic components such as an IC and an antenna, a battery, etc. For example, display unit 15 may be of a digital type having a liquid crystal display panel or the like with a digital display function, or may be of an analog type.

[0042] The cover 14 is a transparent member formed of inorganic glass such as SiO2 glass. For example, the cover 14 is a transparent, disc-shaped watch glass that is disposed on the front side of the watch module 20 and the display unit 15 to cover the front sides of the watch module 20 and the display unit 15. For example, the cover 14 is supported on the inner peripheral edge on the front side of the opening of the center case 11 via a connecting member such as a packing.

[0043] Next, a method for manufacturing a timepiece 1 according to an embodiment of the invention will be described with reference to Fig. 8 and Fig. 9. Fig. 8 and Fig. 9 are diagrams for explaining a method for manufacturing the bezel 13, and are flow charts showing the flow of the method for manufacturing the bezel 13. In Fig. 8, in each of steps ST2 to ST5 of the pattern forming process, areas that have been processed up to the previous stage are omitted, and processing areas 134 to 137 that are processed in each of the processing steps ST2 to ST5 are shown separately.

[0044] The manufacturing method for the watch 1 according to this embodiment comprises a base processing step for processing the bezel base 131, a pattern forming step for forming a pattern by surface treatment on the back surface of the bezel base 131, and an assembly step for assembling the manufactured bezel 13 to the center case 11. The manufacturing method for the watch according to this embodiment performs surface treatment under different processing conditions on multiple processing areas partitioned from one another in a target area on the surface of the base material, and forms a predetermined pattern by the contrast that occurs between the multiple processing areas.

[0045] In the manufacture of the bezel 13, first, sapphire glass, which serves as the base material, is formed into an annular shape (step ST1). Here, the sapphire glass is processed into a final shape having the respective faces 13a-13h, and then the respective faces 13a-13h are mirror-finished. In step ST1, a blank (transparent) bezel base 131 is manufactured.

[0046] Next, as a surface processing process, a light irradiation process is performed on the rear surface 13b of the bezel base 131 after the processing step, with different light irradiation conditions for each processing region.

[0047] Specifically, as shown in FIG. 8, on the rear surface of the bezel base 131, a first surface treatment (step ST2) is performed on a first processing area 134, a second surface treatment (step ST3) is performed on a second processing area, a third surface treatment (step ST4) is performed on a third processing area, and a fourth surface treatment (step ST5) is performed on a fourth processing area, under fourth conditions.

[0048] The processing conditions may be set by setting the surface finishing state by setting the surface processing device. For example, a surface finish such as a honing tone, a hairline tone in which a pattern of multiple linear patterns aligned in one direction is formed, or a hologram tone in which light is reflected in various directions by fine unevenness and the reflected light interferes with each other may be selected for each processing region. Also, different conditions may be selected and set for the same type of finish. As an example, by setting different processing conditions for each region, such as a light honing tone for the first processing region 134, a dark honing tone for the second processing region 135, a hairline tone for the third processing region 136, and a hologram tone for the fourth processing region 137, a different appearance or texture is formed for each region. As a result, different surface shapes are formed in the multiple processing regions 134a to 137a, and as a whole, a crystal tone pattern as shown in FIG. 7 is formed.

[0049] Next, the coating portion 132, which is a metal deposition film, is formed by deposition on the rear surface 13b of the bezel base 131 after the surface processing (step ST6).

[0050] 9, the coating portion 132 is etched in a predetermined pattern to form etched portions 132a from which the coating portion 132 has been removed (step ST7). At this time, by forming the etched portions 132a in a pattern corresponding to the shapes of various characters, scales, symbols, etc., the various characters, scales, symbols, etc. can be visually recognized from the surface.

[0051] The process of forming the coating portion 132 and the etching portion 132a is performed after the laser processing of the bezel base 131 and before the bezel base 131 is assembled to the center case 11.

[0052] Next, a printed layer 133 (second coloring layer) that develops a visible color may be formed on the back surface of the coating portion 132 including the etched portion 132a from which the coating portion 132 has been removed by etching (step ST8). That is, after a portion of the coating portion 132 is removed, the printed layer 133 is formed so as to extend from the etched portion 132a, which is the removed portion, to the portion 132b in which the coating portion 132 other than the etched portion 132a remains. As an example, the printed layer 133 is formed on the entire back surface of the bezel base 131, overlapping the metal vapor deposition film of the coating portion 132. In this case, the color of the printed layer 133 is superimposed on the back surface of the transparent bezel base 131 of the etched portion 132a removed by etching, so that when viewed from the front side, the various letters, scales, and symbols of the etched portion 132a are visible from the front side as the color of the printed layer 133, as shown in Figure 2.

[0053] In this manner, the bezel 13 is produced, in which the coating portion 132 is formed as an opaque layer on the rear surface 13b and the rear tapered surface 13f.

[0054] Furthermore, the manufactured bezel 13 is inserted into the recess 113 of the center case 11, thereby assembling the bezel 13 to the center case 11 (step ST8).

[0055] With the watch 1 and watch case 10 configured as described above, a variety of patterns can be created because the patterns are created by a collection of multiple processing areas with different processing conditions.

[0056] For example, when coloring by deposition, deposition and peeling must be repeated to produce different colors in each area, making the procedure very complicated. However, by changing the conditions of laser irradiation in surface processing of a transparent substrate, a variety of patterns can be produced by assembling multiple areas with different appearances and textures. Therefore, deposition processing only needs to be performed once, and peeling processing is not necessary. For example, a crystal-like pattern can be produced by making the shape of the processed area irregular polygonal.

[0057] The above-described embodiments are merely examples and do not limit the scope of the invention.

[0058] For example, in the above embodiment, four types of processing regions are set, but this is not limited to this. Also, the regions are arranged so that they do not overlap, but this is not limited to this. For example, it is possible to form parts to be processed by overlapping them under multiple conditions and set them as separate regions.

[0059] For example, in the above embodiment, the surface region is exemplified as a processed region where processing is performed under various conditions, but the surface region may also include a non-processed region where processing is not performed. In other words, the surface region may include a region where processing is not performed as one of the processing conditions.

[0060] Also, while an example has been shown in which the patterned portion 131b is formed on the inside surface of the timepiece 1, i.e., on the back surface of the bezel 13 in the above embodiment, this is not limiting. For example, the patterned portion 131b may be formed on a portion of the timepiece component that is exposed on the outer surface side.

[0061] In the above embodiment, an example has been shown in which pattern portion 131b is formed on the back surface of bezel 13, and coating portion 132, which is a vapor deposition film, is formed on the back surface side of bezel 13 so as to overlap pattern portion 131b, but the present invention is not limited to this. Coating portion 132 may be formed on the surface of bezel 13 opposite to the surface on which pattern portion 131b is formed. That is, pattern portion 131b may be formed on the front surface of bezel 13, and coating portion 31 may be formed on the back surface of bezel 13. In some cases, pattern portion 131b may be formed on the front surface of bezel 13, and coating portion 132 may be formed on the front surface side of bezel 13 so as to overlap pattern portion 131b.

[0062] Moreover, the pattern of the pattern portion 131b is not limited to the crystal pattern. As described above, the pattern portion 131b can be formed in various patterns such as camouflage, carbon, plain weave, and fiber patterns, and can be applied to various patterns that can be formed by gathering a plurality of parts having different surface shapes. For example, it is possible to express a plain weave pattern, carbon pattern, etc. by dividing it into a lattice shape and arranging areas in which vertical or horizontal fiber patterns are formed alternately vertically and horizontally within adjacent lattices. The shape of the area may be regular or irregular.

[0063] In another embodiment, a pattern portion may be formed that has a common texture with other parts constituting the same device. For example, a watch may be provided with a separate member that is made of a metal material and has been treated so that at least the surface on the viewing side has a common pattern with the pattern portion. For example, in a watch, a dial 17 constituting the display unit 15 may be provided with a separate member that has a crystalline appearance due to recrystallization of a metal material, and the bezel may be provided with multiple processed areas formed on sapphire glass under different conditions, and the multiple processed areas may be combined to present a crystalline appearance, thereby providing a uniform appearance for the entire device.

[0064] Furthermore, the color of the coating portion 132 may be a color other than blue. Furthermore, when multiple coating portions 132 are formed corresponding to multiple non-visible side surfaces, these may be different colors.

[0065] Furthermore, the coating portion 132, which is a vapor deposition film, does not necessarily have to be formed.

[0066] In the above embodiment, the watch case 10 is shown as an example of a device, and the bezel 13 is shown as an example of a timepiece component, but the present invention is not limited to this. For example, the present invention can be applied to other timepiece components such as the cover 14, crown 16, dial 17, and back cover 12 of the timepiece 1. In addition, the present invention can be applied to various wearable devices such as wrist devices that handle biological information in addition to timekeeping functions.

[0067] Although several embodiments of the present invention have been described, the present invention is encompassed within the scope of the invention described in the claims and their equivalents. [Explanation of symbols]

[0068] 1. Clock 10. Watch case 11…Center case 12…Back cover 13…Bezel 14…Cover 15…Display section 16…Crown 17…Dial 131…Bezel base 13a…Surface 13b…Back side 13c…Inner peripheral surface 13d...Outer surface 13e, 13f, 13g, 13h...Tapered surface 14…Cover 20...Clock module 51...Connecting member 52...Connecting member 113…Recess 114…Holding frame 1212…Plate section 1213...Engagement tube portion 132... Coating part (coloring layer) 133...Printing layer (second color layer)

Claims

1. The optically transparent substrate includes: the substrate has a plurality of display areas having different surface conditions and different appearances or textures, and a pattern portion that presents a predetermined pattern by an assembly of the plurality of display areas; A color-developing layer is provided on the surface of the base material so as to span the multiple display areas.

2. The timepiece component according to claim 1 , wherein the plurality of display regions are different from each other in terms of at least one of the following: surface shape, surface position, surface roughness, light reflection characteristics, light scattering characteristics, light interference characteristics, brightness, and saturation.

3. 2. The timepiece component according to claim 1, wherein each of the plurality of display areas is formed by a plurality of unit areas that are arranged in a scattered manner.

4. At least one of the unit areas has a polygonal shape; 4. The timepiece member according to claim 3, wherein at least a part of the boundary line between the plurality of display areas is curved.

5. a part of the color-developing layer that overlaps with the display area is removed, 2. The watch component according to claim 1, further comprising a second coloring layer provided so as to straddle from the portion from which the coloring layer has been removed to the portion where the coloring layer remains.

6. The timepiece member according to claim 1 , wherein the plurality of display areas do not overlap each other.

7. Case and A clock module housed within the case; The timepiece member according to any one of claims 1 to 6, which is assembled to the case; A watch equipped with.

8. The timepiece according to claim 7, wherein the pattern portion is provided on a surface of the timepiece component that will be on the inside when assembled into the timepiece.

9. The substrate is a transparent member, The timepiece according to claim 7, further comprising a separate member having a pattern common to the pattern portion and made of a metal material.

10. the timepiece member is a bezel of the timepiece, The timepiece according to claim 9, wherein the separate member is a dial of the timepiece.

11. performing laser processing on the plurality of display areas under processing conditions different from each other so that a predetermined pattern is presented by a set of the plurality of display areas partitioned from each other in a target area on the surface of the base material; A manufacturing method for watch components.

12. 12. The method for manufacturing a watch component according to claim 11, wherein the laser processing is an irradiation process of irradiating light, and the processing conditions including at least one of the type of light, the intensity of light, the output, the scanning distance of the light irradiation, the scanning direction of the light irradiation, and the scanning pitch of the light irradiation are different from one another in the multiple display areas.

13. The substrate has a light-transmitting property, The method for manufacturing a watch component according to claim 12, further comprising providing a color-developing layer so as to span the plurality of display areas on the surface of the base material.

14. The method for manufacturing a watch component according to claim 13, further comprising the steps of: removing a portion of the coloring layer; and then providing a second coloring layer so as to straddle the portion from which the coloring layer has been removed and the portion where the coloring layer remains.

15. performing laser processing on the plurality of display areas under processing conditions different from each other so that a predetermined pattern is presented by a set of the plurality of display areas partitioned from each other in a target area on the surface of the base material; A method for manufacturing a timepiece, comprising assembling a timepiece component having the base material to a case that houses a timepiece module and a dial inside.

16. 16. The method for manufacturing a watch according to claim 15, further comprising providing a coloring layer on the surface of the base material that has been subjected to laser processing before the base material is assembled into the case.

17. A method for manufacturing a watch as described in claim 16, further comprising the steps of: removing a portion of the coloring layer before assembling the base material to the case; and providing a second coloring layer so as to span from the portion from which the coloring layer has been removed to the portion where the coloring layer remains.

18. 16. A method for manufacturing a timepiece as described in claim 15, wherein the dial is made of a metal material and at least the surface on the viewing side is treated to present a pattern common to the pattern in the target area.

Images