Timepiece dial and timepiece

Abstract

A timepiece dial and a timepiece are provided. The timepiece dial (3) is provided with a surface decoration having a plurality of protrusions (32) on a first main surface. In a first cross-section orthogonal to the first direction (X), the at least one protrusion (32) has different inclination angles (alpha, beta) between a first inclined surface (32a), which increases in height toward the vertex (P5), and a second inclined surface (32b), which decreases in height from the vertex (P5). In the first cross section, the heights of two or more of the plurality of protrusions (32) are different from each other. In a second cross-section orthogonal to a second direction (Y) orthogonal to the first direction (X) along the first main surface, there are two or more protrusions (32).

Description

Technical Field

[0001] The present invention relates to a watch dial and a watch. Background Art

[0002] An index indicating the time etc. is formed on the surface of a dial for a timepiece. The index is formed in a convex shape on the surface of the dial (for example, refer to Patent Documents 1 and 2). Prior Art Literature Patent Literature

[0003] Patent Document 1: Japanese Patent Application Publication No. 2001-33568. Patent document 2: Japanese Patent Application Laid-Open No. 2-189493. Summary of the invention Problems to be solved by the invention

[0004] In addition, in addition to the time scale, the dial may also be decorated with concave and convex surfaces in order to improve the design. However, the height of the concave and convex surface decoration is sometimes restricted due to the size of the outer case determined by the thickness of the product or manufacturing reasons. Therefore, it is not easy to improve the decorativeness of the surface decoration with large concave and convex surfaces in the above-mentioned dial.

[0005] An object of one aspect of the present invention is to provide a timepiece dial and a timepiece capable of improving the decorativeness of the surface decoration. Solutions to Solve Problems

[0006] (1) A watch dial having a surface decoration having a plurality of protrusions formed on a first main surface, wherein at least one of the protrusions has a first inclined surface that increases in height toward a vertex and a second inclined surface that decreases in height from the vertex in a first section orthogonal to a first direction along the first main surface, and has different inclination angles, and in the first section, at least two of the plurality of protrusions have heights that are different from each other, and in a second section orthogonal to a second direction orthogonal to the first direction along the first main surface, at least two of the protrusions are present.

[0007] According to this configuration, the first inclined surface and the second inclined surface have different inclination angles, so that a design can be achieved in which light is easily irradiated on one of the two inclined surfaces and light is difficult to irradiate on the other inclined surface. The brightness of the two inclined surfaces can be set arbitrarily, so the contrast of the brightness of the two inclined surfaces can be increased. Therefore, the surface decoration can be given a deep and high-end appearance. Furthermore, the range of brightness that can be set for the two inclined surfaces becomes larger, so the degree of freedom in the design of the dial can be increased. Therefore, a dial with a surface decoration with excellent decorative properties can be realized.

[0008] According to this structure, the heights of two or more convex parts are different, so that convex parts with a large light irradiation area and convex parts with a small light irradiation area can be mixed. Therefore, it is possible to give the surface decoration a non-monotonous and deep appearance. Furthermore, the heights of the convex parts are uneven, so that a variety of expressions can be made. Therefore, the degree of freedom in the design of the dial can be increased. Therefore, a dial with a surface decoration with excellent decorative properties can be realized.

[0009] According to this structure, there are two or more convex parts not only in the first section but also in the second section, so that the convex parts constituting the surface decoration are formed in various positions in multiple directions. Therefore, it is possible to give the surface decoration a non-monotonous and high-end appearance. Therefore, it is possible to realize a dial with a surface decoration having excellent decorative properties.

[0010] (2) In the timepiece dial according to (1), a distance between vertices of the convex portions adjacent to each other in the first direction is different from a distance between vertices of the convex portions adjacent to each other in the second direction.

[0011] According to this configuration, for the direction in which the distance between vertices is large, even if the direction of the light irradiated to the dial changes, the visual confirmation ease of the portion irradiated by the convex portion is unlikely to change. Therefore, the influence of the surface decoration on the visual confirmation of the hour markers can be suppressed to a small extent. Therefore, even if the surface decoration with concave and convex is formed on the dial to improve the decorativeness, the visual confirmation ease of the hour markers is good.

[0012] (3) In the timepiece dial according to (1) or (2), the convex portion has a ridge line at least part of which is curved in a plan view.

[0013] According to this configuration, at least a portion of the ridgeline of the convex portion is curved, so that the surface decoration can be provided with a non-monotonous and high-end appearance.

[0014] (4) The timepiece dial according to any one of (1) to (3), wherein the first main surface is covered with a transparent resin layer.

[0015] According to this structure, a three-dimensional visual effect with depth can be given to the surface decoration.

[0016] (5) A timepiece comprising the timepiece dial according to any one of (1) to (4).

[0017] According to this configuration, it is possible to realize a timepiece having a dial with a surface decoration having excellent decorative properties. Effects of the Invention

[0018] According to one aspect of the present invention, it is possible to provide a timepiece dial and a timepiece capable of improving the decorativeness of the surface decoration. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of a timepiece including the timepiece dial according to the first embodiment. Figure 2 It is a plan view of the timepiece dial according to the first embodiment. Figure 3 This is the II cross-sectional view of the previous figure. Figure 4 It is a perspective view showing a partial cross-section of the timepiece dial according to the first embodiment. Figure 5 It is a plan view of a partial region of the timepiece dial according to the first embodiment. Figure 6 This is a diagram showing the height distribution in the II-II cross section of the previous figure. Figure 7 Yes Figure 5 An enlarged top view of area A. Figure 8 This is a diagram showing the height distribution in the III-III cross section of the previous figure. Fig. 9 It is a plan view of a partial region of the timepiece dial according to the first embodiment. Fig.10 This is a diagram showing the height distribution in the IV-IV cross section of the previous figure. Fig.11 It is a plan view of a partial region of the timepiece dial according to the first embodiment. Fig.12 It is a figure which shows the height distribution in the VV cross section of the previous figure. Fig.13 1 and 2 are a plan view of a partial region of the timepiece dial according to the first embodiment and a diagram showing height distribution. Fig.14 It is a cross-sectional view of a timepiece dial according to a second embodiment. Fig.15 It is a schematic diagram for explaining the reflection of light by the timepiece dial according to the second embodiment. Fig.16 It is a schematic diagram for explaining the reflection of light on a timepiece dial according to another embodiment. Fig.17 It is a cross-sectional view of a timepiece dial according to a first modified example of the second embodiment. Fig.18 It is a cross-sectional view of a timepiece dial according to a second modification of the second embodiment. DETAILED DESCRIPTION

[0020] Hereinafter, embodiments of the present invention will be described based on the drawings.

[0021] [Watches] Figure 1 It is a cross-sectional view of a timepiece 1 including a dial 3 according to the embodiment. Figure 2 It is a top view of the dial 3. Figure 3 It is a cross-sectional view of the dial 3. Figure 3 yes Figure 2 II cross-sectional view.

[0022] like Figure 1 As shown, the timepiece 1 includes a timepiece case 2 , a dial 3 , hands 4 , a timepiece movement 5 , and a rotation operation unit 7 .

[0023] The watch case 2 (case) includes a case body 10, a glass 11, a bezel 12, and a back cover 13. The case body 10 is formed in a cylindrical shape. The glass 11 closes one opening of the case body 10. The bezel 12 is provided at one opening end of the case body 10. The case body 10 holds the glass 11. The back cover 13 closes the other opening of the case body 10. The watch case 2 accommodates the dial 3, the hands 4, and the movement 5. The following, combined Figure 1 The positions of the components are assumed. For example, the glass 11 is located above the back cover 13. The positions shown here do not limit the form of the timepiece 1 when it is used.

[0024] The pointer 4 is arranged between the dial 3 and the glass 11. The pointer 4 is attached to the rotating shaft 14 of the movement 5. The movement 5 is arranged between the dial 3 and the back cover 13. The movement 5 has a driving source for driving the rotating shaft 14. The rotating shaft 14 extends from the center of the dial 3 in a direction perpendicular to the dial 3.

[0025] The rotation operation part 7 includes a rotation shaft part 71 and a head part 72. The rotation operation part 7 (crown) rotates the parts in the movement 5.

[0026] [Timepiece dial] (First embodiment) like Figure 2 As shown, the dial 3 (clock dial) is formed in a disk shape. The dial 3 can be visually confirmed through the glass 11 (refer to Figure 1 ). The situation of observing from a direction perpendicular to the dial 3 is called a top view.

[0027] The dial 3 is formed of, for example, one or more of metal, ceramic, glass, and plastic. Examples of the metal constituting the dial 3 include alloys having as main components one or more of (A) copper, (B) iron, (C) titanium, (D) gold, (E) silver, (F) platinum, and (G) nickel, or one or more of (A) to (G). The "main component" is, for example, a component that accounts for more than 50% by mass of the whole. By using these materials, the processing of the dial 3 can be facilitated, and low costs can be achieved.

[0028] A central hole 3c through which the rotating shaft 14 is inserted is formed at the center of the dial 3. The central hole 3c penetrates the dial 3 in the thickness direction.

[0029] A plurality of hour markers 23 are formed on the upper surface 3a (first main surface) of the dial 3. The hour markers 23 are, for example, display members that indicate the time. The plurality of hour markers 23 are, for example, formed at intervals along the circumferential direction of the dial 3 at positions close to the outer peripheral edge of the dial 3. The plurality of hour markers 23 are, for example, formed at positions from 1 o'clock to 12 o'clock, respectively. The hour markers 23 are formed integrally with the dial 3.

[0030] The shape of the hour marker 23 is not particularly limited. The hour marker 23 has, for example, a shape of a graphic, a character, a symbol, etc. For example, in a plan view, the hour marker 23 may be a strip along the radial direction of the dial 3, or may be a circle, a polygon (for example, a triangle, a rectangle, a trapezoid), a number (Arabic numerals, Roman numerals, etc.), etc. The hour marker 23 is also called an hour mark. like Figure 3 As shown, the hour markers 23 are formed so as to protrude upward from the upper surface 3 a of the dial 3 .

[0031] The method for forming the hour markers 23 is not particularly limited. The hour markers 23 can be formed in a convex shape by stamping the dial 3 or the like. The hour markers 23 can also be formed by cutting the surface when manufacturing the dial 3. When the dial 3 is made of plastic or the like, the hour markers 23 can also be formed by a molding method such as injection molding. In addition, the hour markers 23 can also be formed by electroforming or transfer.

[0032] A display layer containing a light-storage material may also be formed on the surface of the time mark 23. The light-storage material absorbs energy when stimulated by light, converts the absorbed energy into visible light, and emits light even after the stimulation stops. By adopting a display layer composed of a light-storage material, it is easy to visually confirm the time mark 23 even in a dark place. If the display layer presents a color different from that of the dial 3, the visual confirmation of the display layer can be improved. The display layer may also be formed of a fluorescent material. The display layer can be formed by printing, painting, etc. The display layer may also be separated from the time mark 23 and pasted on the surface of the time mark 23.

[0033] Figure 4 It is a perspective view showing a partial cross-section of the dial 3 . Figure 5 It is a top view of a part of the dial 3. Figure 5 The left-right direction (lateral direction) in FIG. 1 is the X direction (first direction). The X direction is a direction along the upper surface 3 a and is a direction passing through the 3 o'clock position and the 9 o'clock position of the dial 3 . Figure 5The up-down direction (longitudinal direction) in is the Y direction (second direction). The Y direction is the direction along the upper surface 3a and is a direction perpendicular to the X direction. The Y direction is a direction passing through the 6 o'clock position and the 12 o'clock position of the dial 3. The Z direction is a direction perpendicular to the X direction and the Y direction. The surface defined by the X direction and the Y direction is the XY plane. The Z direction is the up-down direction (height direction). Figure 5 A rectangular region of the upper surface 3 a measuring 8 mm in width and 6 mm in length is shown. Figure 6 It is shown Figure 5 Graph of the height distribution in section II-II. Figure 6 The height distribution in the first cross section perpendicular to the X direction is shown.

[0034] The direction from 9 o'clock to 3 o'clock along the X direction of the dial 3 is the +X direction (refer to Figure 2 ). The direction opposite to the +X direction is the -X direction. The direction from 6 o'clock to 12 o'clock along the Y direction is the +Y direction (refer to Figure 2 ). The direction opposite to the +Y direction is the -Y direction.

[0035] like Figure 4 As shown, a surface decoration 31 is applied on the upper surface 3a (first main surface) of the dial 3 based on the concavoconvexity. The shape of the surface decoration 31 is not particularly limited. The surface decoration 31 can be a wave pattern, a stripe pattern, a lattice pattern, a water drop pattern, a wood grain pattern, a stone grain pattern, a geometric pattern, a random pattern, etc. The surface decoration 31 can also show a designed pattern of animals and plants, etc. The surface decoration 31 can be formed by stamping, molding, cutting, etc. when manufacturing the dial 3.

[0036] like Figure 4 and Figure 5 As shown, the surface decoration 31 has a plurality of protrusions 32. The protrusions 32 extend in a predetermined direction. Figure 5 The II-II line in the region shown has a plurality of convex portions 32, namely, the first convex portion 32A to the eighth convex portion 32H. The first convex portion 32A to the eighth convex portion 32H are arranged in this order along the Y direction. The first convex portion 32A to the eighth convex portion 32H are formed, for example, at intervals along the Y direction. The convex portion 32 satisfies the following conditions (1) to (3).

[0037] (1) Height of the convex portion in the first cross section like Figure 6As shown in FIG. 1 , in the first cross section, the heights of two or more of the first to eighth convex portions 32A to 32H are different from each other. For example, the heights of the first to eighth convex portions 32A to 32H are different from each other. P1 to P8 are the vertices of the first to eighth convex portions 32A to 32H, respectively. The height of the convex portion 32 is relative to the reference height position of the dial 3 (for example, at Figure 5 For example, the height of the fifth protrusion 32E is the height H of the vertex P5 relative to the reference height position.

[0038] (2) Angle of inclination of the slope of at least one convex portion in the first cross section The shape of the convex portion 32 in the first section is, for example, an inverted V-shape having a first inclined surface 32a and a second inclined surface 32b. In at least one convex portion 32, in the first section, the first inclined surface 32a and the second inclined surface 32b have different inclination angles. In the present embodiment, at least the fifth convex portion 32E meets this condition. It is preferred that all of the first convex portion 32A to the eighth convex portion 32H meet the condition that "the first inclined surface 32a and the second inclined surface 32b have different inclination angles". It is sufficient that at least one of the first convex portion 32A to the eighth convex portion 32H meets this condition.

[0039] The first inclined surface 32a of the fifth protrusion 32E gradually increases in height toward the vertex P5 along the -Y direction. The second inclined surface 32b of the fifth protrusion 32E gradually decreases in height from the vertex P5 along the -Y direction. The second inclined surface 32b is an inclined surface on the side opposite to the first inclined surface 32a of the fifth protrusion 32E. The first inclined surface 32a and the second inclined surface 32b are inclined relative to the XY plane.

[0040] Figure 7 Yes Figure 5 An enlarged top view of area A. Figure 8 It is shown Figure 7 Graph of the height distribution in the III-III section. like Figure 8 As shown in FIG. 1 , the inclination angle α of the first inclined surface 32a of the fifth convex portion 32E is larger than the inclination angle β of the second inclined surface 32b. The inclination angles α and β are angles with respect to the Z direction.

[0041] For example, the first slope 32a and the second slope 32b may have a constant inclination angle over the entire height, or the inclination angle may not be constant. In the present embodiment, the first slope 32a and the second slope 32b have a constant inclination angle over the entire height.

[0042] The first inclined surface 32a and the second inclined surface 32b may also be a shape (curved concave shape) in which the inclination angle (angle relative to the Z direction) decreases as it approaches the vertex in the first cross section. The first inclined surface 32a and the second inclined surface 32b may also be a shape (curved convex shape) in which the inclination angle (angle relative to the Z direction) increases as it approaches the vertex in the first cross section.

[0043] The inclination angle α of the first inclined surface 32a may be, for example, the angle of the tangent line at the highest point of the first inclined surface 32a (angle relative to the Z direction). The inclination angle β of the second inclined surface 32b may be, for example, the angle of the tangent line at the highest point of the second inclined surface 32b (angle relative to the Z direction). The inclination angles of the first inclined surface 32a and the second inclined surface 32b may be average inclination angles of the entire height.

[0044] The shape of the convex portion 32 in the first section is not limited to the inverted V shape. The shape of the convex portion in the first section may also be a shape obtained by cutting off the portion including the top from the inverted V-shaped convex portion (trapezoidal shape). The trapezoidal convex portion has a top surface and a first inclined surface and a second inclined surface extending obliquely downward from the periphery of the top surface. The top surface is, for example, a flat surface along the XY plane. The heights of the plurality of convex portions may also be different. That is, the heights of two or more of the plurality of convex portions may also be different from each other.

[0045] (3) Number of convex portions in the second cross section Fig. 9 It is a top view of a part of the dial 3. Fig. 9 The left-right direction (lateral direction) in is the X direction (first direction). Fig. 9 The up-down direction (longitudinal direction) is the Y direction (second direction). Fig. 9 A rectangular region of the upper surface 3 a measuring 8 mm in width and 6 mm in length is shown. Fig.10 It is shown Fig. 9 Graph of the height distribution in section IV-IV. Fig.10 The height distribution in the second cross section orthogonal to the Y direction is shown.

[0046] like Fig. 9 and Fig.10 As shown, in the second cross section, there are two or more convex portions 32. In this embodiment, the surface decoration 31 is Fig. 9The IV-IV line in the area shown has a first protrusion 32I and a second protrusion 32J as a plurality of protrusions 32. P11 and P12 are vertices of the first protrusion 32I and the second protrusion 32J, respectively. The first protrusion 32I and the second protrusion 32J are arranged along the X direction. The first protrusion 32I and the second protrusion 32J are formed, for example, at intervals along the X direction. The number of protrusions 32 may be more than three. In the present embodiment, for a partial area of ​​the dial 3, the number of protrusions 32 in the second cross section is more than two, but the number of protrusions 32 in the second cross section only needs to be more than two for the entire length in the X direction.

[0047] Fig.11 It is a top view of a part of the dial 3. Fig.11 is with Fig. 9 Top view of the same area. Fig.12 It is shown Fig.11 Graph of the height distribution in the VV section. Fig.11 The VV section is the position in the Y direction and Fig. 9 The IV-IV section is a different cross section. Fig.12 The height distribution in the second cross section orthogonal to the Y direction is shown.

[0048] like Fig.11 and Fig.12 As shown, in the second cross section, there are two or more convex portions 32. In this embodiment, the surface decoration 31 is Fig.11 The VV line in the area shown has a third protrusion 32K and a fourth protrusion 32L as a plurality of protrusions 32. P13 and P14 are vertices of the third protrusion 32K and the fourth protrusion 32L, respectively. The third protrusion 32K and the fourth protrusion 32L are arranged along the X direction. The third protrusion 32K and the fourth protrusion 32L are formed, for example, at intervals along the X direction. The number of protrusions 32 may be more than three. In the present embodiment, for a partial area of ​​the dial 3, the number of protrusions 32 in the second section is more than two, but the number of protrusions 32 in the second section only needs to be more than two for the entire length in the X direction.

[0049] In this embodiment, the surface decoration 31 is for the two second cross sections ( Fig. 9 The IV-IV section and Fig.11 In the VV section), there are two or more protrusions 32, but the surface decoration 31 may also have two or more protrusions 32 for three or more second sections.

[0050] The convex portion 32 preferably satisfies the following conditions (4) and (5).

[0051] (4) Relationship between the distance between the vertices of adjacent convex portions along the X direction (first direction) and the distance between the vertices of adjacent convex portions along the Y direction (second direction) Fig.13 It is a top view of a part of the dial 3 and a diagram showing the height distribution. Fig.13 (A) shows a plan view of a partial area of ​​the dial 3 . Fig.13 (B) is shown Fig.13 (A) is a graph showing the height distribution in the VI-VI section (first section). Fig.13 (C) is shown Fig.13 (A) is a graph showing the height distribution in the VII-VII section (second section).

[0052] like Fig.13 (A) shows that the surface decoration 31 is Fig.13 The VI-VI line in the region shown in (A) has the first convex portion 32M to the seventh convex portion 32S as a plurality of convex portions 32. P15 to P21 are the vertices of the first convex portion 32M to the seventh convex portion 32S, respectively. The first convex portion 32M to the seventh convex portion 32S are arranged in this order along the Y direction. The distance between the vertices of two adjacent convex portions 32 in the first convex portion 32M to the seventh convex portion 32S is referred to as the "first inter-vertice distance". The first inter-vertice distance is the distance between the vertices of two adjacent convex portions 32 along the Y direction (second direction).

[0053] like Fig.13 As shown in (B), the first inter-vertex distance is, for example, the average value of the inter-vertex distances W1 to W6. The inter-vertex distance W1 is the inter-vertex distance between the first convex portion 32M and the second convex portion 32N. The inter-vertex distance W2 is the inter-vertex distance between the second convex portion 32N and the third convex portion 32O. The inter-vertex distance W3 is the inter-vertex distance between the third convex portion 32O and the fourth convex portion 32P. The inter-vertex distance W4 is the inter-vertex distance between the fourth convex portion 32P and the fifth convex portion 32Q. The inter-vertex distance W5 is the inter-vertex distance between the fifth convex portion 32Q and the sixth convex portion 32R. The inter-vertex distance W6 is the inter-vertex distance between the sixth convex portion 32R and the seventh convex portion 32S.

[0054] like Fig.13 (A) shows that the surface decoration 31 is Fig.13 The VII-VII line in the region shown in (A) has a fourth convex portion 32P and an eighth convex portion 32T as a plurality of convex portions 32. P18 and P22 are vertices of the fourth convex portion 32P and the eighth convex portion 32T, respectively. The fourth convex portion 32P and the eighth convex portion 32T are arranged along the X direction. The distance between the vertices of the fourth convex portion 32P and the eighth convex portion 32T is referred to as the "second vertex distance".

[0055] like Fig.13As shown in (C), the second inter-apex distance is the inter-apex distance L1 of two convex portions 32 adjacent to each other in the X direction (first direction). The number of the convex parts 32 may be more than 3. In the present embodiment, the number of the convex parts 32 is 2, and thus L1 is the second inter-apex distance. However, when the number of the convex parts 32 is more than 3, the second inter-apex distance is, for example, the average value of the inter-apex distances of adjacent convex parts 32.

[0056] The distance between the first vertices (for example, Fig.13 (B) The average value of W1 to W6) and the distance between the second vertices (for example, Fig.13 (C) is different from L1). In this embodiment, the second inter-vertex distance is larger than the first inter-vertex distance. In the present embodiment, the second inter-vertex distance is larger than the first inter-vertex distance, but the first inter-vertex distance may be larger than the second inter-vertex distance.

[0057] (5) Shape of ridge line of convex portion like Figure 4 As shown, the convex portion 32 has a ridgeline 33. The ridgeline 33 is a boundary line between the first inclined surface 32a and the second inclined surface 32b of the convex portion 32. The ridgeline 33 is a line obtained by connecting vertices in a plurality of cross sections that are orthogonal to the extension direction of the convex portion 32. The ridgeline 33 is formed along the entire length of the extension direction of the convex portion 32.

[0058] like Figure 5 As shown, at least a portion of the ridge 33 is formed in a curved shape. The curved shape refers to, for example, a circular arc shape, an elliptical arc shape, a high-order curve shape (a parabola shape, a hyperbola shape, etc.). The ridge 33, for example, has at least one curved portion. The curved portion is curved. The ridge 33, for example, has a first curved portion 33a, a second curved portion 33b, and a third curved portion 33c. The first curved portion 33a, the second curved portion 33b, and the third curved portion 33c are arranged in this order along the length direction of the convex portion 32. The first curved portion 33a is curved in a manner that bulges toward one side (towards +Y). The second curved portion 33b is curved in a manner that bulges toward the other side (towards -Y). The third curved portion 33c is curved in a manner that bulges toward one side (towards +Y). Furthermore, in the present embodiment, the convex portion 32 has the ridge line 33 at least part of which is curved, but a convex portion having a linear ridge line may also be employed.

[0059] The ridge line 33 may have a shape obtained by combining one or more first curved portions and one or more second curved portions curved so as to be convex toward the side opposite to the first curved portion.

[0060] The upper surface 3a of the dial 3 may also be subjected to a surface treatment. The surface treatment may be formed by at least one of painting, printing, wet plating, and dry plating. Examples of dry plating include physical vapor deposition (PVD) and chemical vapor deposition (CVD). These surface treatments can improve the design of the dial 3.

[0061] [Effects of the dial according to the embodiment] The dial 3 of this embodiment is formed with a surface decoration 31 having a plurality of convex portions 32. The surface decoration 31 has the following configuration. (i) In at least one convex portion 32, in the first cross section, the inclination angle α of the first inclined surface 32a is different from the inclination angle β of the second inclined surface 32b (see Figure 8 ). (ii) In the first cross section, the heights of two or more of the plurality of protrusions 32 are different from each other (see Figure 6 (iii) In the second cross section, there are two or more convex portions 32 (see Fig.10 ).

[0062] According to configuration (i), it is possible to achieve a design in which light is easily irradiated on one of the two inclined surfaces 32a and 32b, and light is difficult to irradiate on the other inclined surface. The brightness of the two inclined surfaces 32a and 32b can be set arbitrarily, so that the contrast of the brightness of the two inclined surfaces 32a and 32b can be increased. Therefore, the surface decoration 31 can be given a deep and high-end appearance. Furthermore, the range of brightness that can be set for the two inclined surfaces 32a and 32b becomes larger, so that the degree of freedom in the design of the dial 3 can be increased. Therefore, a dial 3 having a surface decoration 31 with excellent decorative properties can be realized.

[0063] According to configuration (ii), the heights of two or more convex portions 32 are different, so that convex portions 32 with a large light irradiation area and convex portions 32 with a small light irradiation area can be mixed. Therefore, the surface decoration 31 can be given a non-monotonous and deep appearance. Furthermore, the heights of the convex portions 32 are uneven, so that a variety of expressions can be made. Therefore, the degree of freedom in the design of the dial 3 can be increased. Therefore, a dial 3 with a surface decoration 31 with excellent decorative properties can be realized.

[0064] According to the configuration (iii), there are two or more convex portions 32 not only in the first section but also in the second section, so that the convex portions 32 constituting the surface decoration 31 are formed in various positions in multiple directions. Therefore, it is possible to give the surface decoration 31 a non-monotonous and high-end appearance. Therefore, it is possible to realize a dial 3 having a surface decoration 31 with excellent decorative properties.

[0065] In the dial 3, the distance between the vertices of two convex portions 32 adjacent to each other in the Y direction (the second direction) (see Fig.13 (B)) The distance between the vertices of two convex portions 32 adjacent to each other in the X direction (first direction) (see Fig.13 (C)). Therefore, for the Y direction (second direction) in which the distance between vertices is large, even if the direction of the light irradiated to the dial 3 changes, the visual confirmation ease of the part irradiated by the light of the convex part 32 is difficult to change. Therefore, the influence of the surface decoration 31 on the visual confirmation of the hour markers 23 can be suppressed to a small extent. Therefore, even if the surface decoration 31 with concave and convex is formed on the dial 3 to improve the decorativeness, the visual confirmation ease of the hour markers 23 is also good.

[0066] The convex portion 32 has a ridgeline 33 at least part of which is curved in a plan view. Since at least part of the ridgeline 33 of the convex portion 32 is curved, the surface decoration 31 can be given a non-monotonous and high-end appearance.

[0067] The dial 3 can be formed by stamping or the like to form the surface decoration 31 together with the hour markers 23. The dial 3 can reduce the number of manufacturing steps, and thus is excellent in terms of mass production and ease of processing. The dial 3 can reduce the number of manufacturing steps, and thus can be manufactured at a low cost. In addition, the dial 3 can also be manufactured by electroforming or transfer printing.

[0068] The timepiece 1 includes the dial 3. Therefore, it is possible to realize the timepiece 1 including the dial 3 having the surface decoration 31 having excellent decorative properties as described above.

[0069] [Timepiece dial] (Second embodiment) Fig.14 This is a partial cross-sectional view of the dial 103 according to the second embodiment. Fig.15 It is a schematic diagram explaining the reflection of light of the dial 103. The same reference numerals are attached to the same components as those of the first embodiment, and the description thereof will be omitted.

[0070] like Fig.14 As shown, in the dial 103, the upper surface 3a is covered with a transparent resin layer 41. The dial 103 is similar to the dial 3 of the first embodiment (see Figure 3 ) The term "transparent" means, for example, that the transmittance of visible light in the thickness direction (see JIS K 7375:2008) is 50% or more over the entire wavelength range of visible light (380 nm to 780 nm).

[0071] The resin layer 41 protects the surface decoration 31 and gives a three-dimensional and deep visual effect to the surface decoration 31. The resin layer 41 is formed of, for example, a thermoplastic resin such as a polyolefin resin (polypropylene, etc.), ABS resin, or acrylic resin. The resin layer 41 may also be formed of a thermosetting resin such as a melamine resin, a phenolic resin, a polyurethane resin, or an epoxy resin.

[0072] The resin layer 41 can be formed, for example, as follows. A resin is applied to the upper surface 3a of the dial 103 in an uncured state, and the resin is cured. Thus, the resin layer 41 is formed. The surface of the resin layer 41 is polished as needed. By polishing, the surface unevenness of the resin layer 41 can be reduced, and the resin layer 41 can be given a glossy finish.

[0073] [Effects of the dial according to the embodiment] The dial 103 of this embodiment has the following effects in addition to the same effects as the dial 3 of the first embodiment. like Fig.15 As shown, in the dial 103, the upper surface 3a is covered by a transparent resin layer 41. A portion of the irradiation light 51 irradiated to the dial 103 is reflected on the surface of the resin layer 41 to become the first reflected light 52. Another portion of the irradiation light 51 passes through the surface of the resin layer 41 and irradiates the surface decoration 31, and is reflected on the surface of the surface decoration 31 to be emitted as the second reflected light 53. A plurality of reflected lights (the first reflected light 52 and the second reflected light 53) with different height positions of the reflection points are emitted, so that a three-dimensional and deep visual effect can be given to the surface decoration 31.

[0074] Fig.16 This is a partial cross-sectional view of a dial 203 according to another embodiment. Fig.16 It is a schematic diagram for explaining the reflection of light by the dial 203. like Fig.16 As shown, the dial 203 is similar to the dial 103 (see Fig.15 ) The same structure. In the dial 203, there is no resin layer, so two kinds of reflections do not occur. Therefore, it is difficult to produce a three-dimensional visual effect.

[0075] Fig.17 It is a cross-sectional view of a dial 303 according to a first modification of the second embodiment. like Fig.17 As shown, in the dial 303 , the resin layer 41A is formed on the area of ​​the upper surface 3 a except for the hour markers 23 . In the dial 303, the resin layer 41A can be formed thin, so that the entire thickness can be reduced. In the dial 303, the hour markers 23 are not covered by the resin layer 41A, so there is also an advantage that the hour markers 23 are easy to visually confirm.

[0076] Fig.18 It is a cross-sectional view of a dial 403 according to a second modification of the second embodiment. like Fig.18 As shown, in the dial 403, the resin layer 41B has a surface that is curved and convex upward. The dial 403 has a resin layer 41B, and the resin layer 41B has a curved surface, thereby improving the visual effect.

[0077] The present invention is not limited to the above-mentioned embodiments described with reference to the accompanying drawings, and various modifications are conceivable within the technical scope. For example, Figure 3 The lower surface of the dial 3 shown is flat, but a recessed portion may be formed at a position corresponding to the hour marker 23 on the lower surface of the dial 3 . Description of Reference Numerals

[0078] 1. Clocks 3, 103, 303, 403... dial (clock dial) 3a: Upper surface (first main surface) 31……Surface decoration 32…convex part 33... Ridge 41, 41A, 41B...resin layer α... Tilt angle β…tilt angle.

Claims

1. A watch dial, wherein: A surface decoration having a plurality of convex portions is formed on the first main surface. At least one of the protrusions has a first slope whose height increases toward the vertex and a second slope whose height decreases from the vertex at different inclination angles in a first cross section orthogonal to a first direction along the first main surface, In the first cross section, two or more of the plurality of protrusions have different heights from each other, In a second cross section perpendicular to a second direction perpendicular to the first direction along the first main surface, two or more of the convex portions exist.

2. The timepiece dial according to claim 1, wherein: A distance between vertices of the convex portions adjacent to each other in the first direction is different from a distance between vertices of the convex portions adjacent to each other in the second direction.

3. The timepiece dial according to claim 1, wherein: The convex portion has a ridge line at least partly curved in a plan view.

4. The timepiece dial according to claim 1, wherein: The first main surface is covered with a transparent resin layer. 5 . A timepiece comprising the timepiece dial according to claim 1 .

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