Materials

Abstract

To provide a member which exhibits improved designability in a plane-shaped or curved surface-shaped design surface.SOLUTION: A resin molded article including a plane-shaped or curved surface-shaped design surface comprises, in a design surface, a first regions 11 of predetermined shape in which combinations of projecting ridges 1R arranged in parallel at intervals having fixed widths are formed, at least twelve first regions 11 sharing an apex 13 are provided on the design surface, any two first regions 11 having different modes of the projecting ridges 1R are arranged in such a manner that they are adjacent to each other through a virtual straight line L extending toward the outer peripheral side with the apex 13 as a starting point, thereby a second region 12 in which the first regions 11 are arranged without a gap over the whole circumference with the apex 13 as a center are formed.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a member including a decorative surface. [Background technology]

[0002] Conventionally, many resin molded products used as interior parts such as upper housings of shift lever devices in automobiles, console boxes, and instrument panels have been known that have patterns such as grain patterns formed on their surfaces. The grain patterns are formed, for example, by transferring a pattern on a molding surface of a resin molding die (see, for example, Patent Document 1). The pattern on the molding surface of the die is formed, for example, by a graining process using chemical etching.

[0003] By using an etching-based embossing process, a pattern consisting of gently continuing fine unevenness can be formed on the molding surface of a mold. The pattern on the molding surface is transferred to the resin molded product made by this mold, forming a gently uneven grain pattern. This grain pattern on the resin molded product disperses light incident on the uneven surface in multiple directions, resulting in a matte pattern. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-025046 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the grain patterns of resin molded products that can be formed in this manner have little variation in surface properties, and therefore there is a problem in that it is difficult to fully meet the needs for diversification of designs.

[0006] The present invention has been made in consideration of the above-mentioned problems of the prior art, and aims to provide a member having an improved design in terms of a flat or curved design surface. [Means for solving the problem]

[0007] The present invention is a component including a design surface composed of at least one of a flat surface and a curved surface, Place them side by side with a certain gap between them 2 a first region of a predetermined shape in which a plurality of combinations of convex ridges or concave grooves are formed is provided on the design surface; In the design, at least three first regions that share a vertex are The second region is formed by being arranged around the entire circumference in the circumferential direction centered on the vertex, and the second region is arranged without gaps to form a repeating pattern on the design surface, In the second region, two first regions adjacent to each other in the circumferential direction around the apex are The convex ridges or concave grooves direction is different It is a combination of areas, A line of a predetermined shape extending from the vertex toward the outer periphery Without any gaps adjacent And, The relevant In the second area, All around the vertex Same shape The first area is Without any gaps arrangement and the lines of the predetermined shape extending from the vertex toward the outer periphery are formed at equal intervals in the circumferential direction. The component is characterized by: [Effects of the Invention]

[0008] The members of the present invention are arranged side by side with a gap of a certain width. 2 The design surface has a first region of a predetermined shape in which a plurality of combinations of convex ridges or concave grooves are formed. In this design surface, a first region of a predetermined shape is formed around the entire circumference with the vertex as the center. Same shape The second region is formed by arranging the first regions without any gaps. Adjacent in the circumferential direction The two first regions are either convex ridges or concave grooves. direction is different It is a combination of areas.

[0009] In the second region, the convex ridges or concave grooves of the first region are arranged in the circumferential direction around the apex. directionThe component according to the present invention has a design surface with shading or light and shade, and exhibits high designability. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 2 is a perspective view of a resin molded product according to the first embodiment. [Figure 2] 3 is an enlarged view of a part of the upper surface of the resin molded product in Example 1. FIG. [Figure 3] FIG. 2 is a perspective view of a molding die according to the first embodiment. [Figure 4] FIG. 2 is a cross-sectional view of a molding surface in Example 1. [Figure 5] FIG. 3 is an explanatory diagram of a pattern in the first embodiment. [Figure 6] FIG. 3 is an explanatory diagram showing how the pattern reflects light in the first embodiment. [Figure 7] 3 is a photograph (partially enlarged) of the upper surface of the resin molded product in Example 1. [Figure 8] 3 is a photograph of a curved portion of the upper surface of the resin molded product in Example 1. [Figure 9] FIG. 10 is an explanatory diagram of a first pattern in the second embodiment. [Figure 10] FIG. 10 is an explanatory diagram of a second pattern in the second embodiment. [Figure 11] FIG. 10 is an explanatory diagram of a third pattern in the second embodiment. [Figure 12] FIG. 10 is an explanatory diagram of a fourth pattern in the second embodiment. [Figure 13] FIG. 10 is an explanatory diagram of a pattern in the third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] The embodiments of the present invention will be specifically described using the following examples. Example 1 This example relates to a resin molded product 1 which is an example of a member including a flat or curved design surface. The resin molded product 1 of this example will be described with reference to FIGS.

[0012] The resin molded product 1 is a component that forms the upper housing of a shift lever device (not shown) for a vehicle. The resin molded product 1 has a substantially rectangular front shape and has a side wall 18 surrounding the outer periphery. When the shift lever device is attached to the vehicle, the top surface 1S of the resin molded product 1 is exposed to the passenger compartment and is either flush with the surroundings or recessed from the surroundings. Therefore, the side wall 18 of the resin molded product 1 is not visible to vehicle occupants. The top surface 1S of the resin molded product 1 is a design surface that decorates the interior of the vehicle. Hereinafter, the top surface of the resin molded product 1 will be referred to as the design surface 1S.

[0013] In an assembled shift lever device (not shown), a shift lever operated by a vehicle driver is disposed through a lever through-hole 10 provided on the inner periphery of a resin molded product 1, which is an upper housing. The lever through-hole 10 is a rectangular opening provided so that the shift lever can be operated in a shift direction along the longitudinal direction of the vehicle and in a select direction along the vehicle width direction. In the resin molded product 1, a long and narrow indicator window 101 is provided at a position adjacent to the lever through-hole 10 in the vehicle width direction. The indicator window 101 is an opening through which an indicator panel (not shown) can be seen, which displays the arrangement of shift ranges such as parking range, drive range, neutral range, and reverse range.

[0014] The resin molded product 1 is a molded product made of a resin material such as ABS resin, polycarbonate resin, or ASA resin. The resin material in this example is a colored resin material kneaded with a colorant such as a black pigment. The resin molded product 1 made of this resin material is black in an unpainted state.

[0015] A pattern 100 shown in Fig. 2 is formed over the entire design surface 1S of the surface of the resin molded product 1. This pattern 100 is formed by convex ridges 1R extending in various directions. Fig. 2 is an enlarged view of an area 19 indicated by a circular dashed line in Fig. 1. The pattern 100 formed by the convex ridges 1R corresponds to the pattern on the molding surface 40 of the molding die 4 (see Fig. 3) used to mold the resin molded product 1, and is formed during resin molding.

[0016] Here, the molding die 4 for the resin molded product 1 will be described. The molding die 4 (Fig. 3) is a die consisting of a combination of a metal upper die 42 and a lower die 41. The molding die 4 has holes (not shown) for pouring molten resin material into the interior when the upper die 42 and the lower die 41 are clamped together. The resin molded product 1 can be molded by injecting resin material into the interior of the clamped molding die 4. The lower die 41 is a die that molds the shape of the design surface 1S side, which corresponds to the top surface of the resin molded product 1. The upper die 2 is a die that molds the shape of the back side of the resin molded product 1. With the molding die 4 illustrated in Fig. 3, the resin molded product 1 is molded upside down.

[0017] The molding surface 40 of the lower mold 41 is provided with a pattern corresponding to the pattern 100 (Fig. 2) on the design surface 1S of the resin molded product 1. The pattern on the molding surface 40 of the lower mold 41 is a pattern made up of grooves 4T in various directions. The grooves 4T (Fig. 4) on the molding surface 40 are wedge-shaped grooves 4T formed, for example, by laser processing. The convex ridges 1R that make up the pattern 100 (see Fig. 2) on the design surface 1S of the resin molded product 1 are formed corresponding to the wedge-shaped grooves 4T in cross section and have a triangular cross section. The depth D of the grooves 4T on the molding surface 40 is approximately 10 μm. The width W of the grooves 4T is 50 μm.

[0018] The molding surface 40 of the lower mold 41 is subjected to cutting, followed by polishing for a mirror finish, and then laser processing to form the grooves 4T. The decorative surface 1S of the resin molded product 1 molded by this molding surface 40 is a surface composed of convex ridges 1R and a glossy surface 118 (Fig. 6).

[0019] The design surface 1S of the resin molded product 1 has a pattern 100 consisting of a pattern of ridges 1R, which creates a three-dimensional effect and enhances its aesthetic appearance. As shown in Figure 5, this pattern is a combination of multiple regions with ridges 1R arranged in different directions. The smallest unit of the pattern is a first region (an example of a first region) 11 in which ridges 1R are arranged side by side in a certain direction. A second region (an example of a second region) 12 is formed by combining multiple types of first regions 11 with ridges 1R arranged in different directions. The pattern of the design surface 1S of the resin molded product 1 is a repeating pattern in which second regions 12 of the same pattern are combined without gaps. In Figure 5, the shapes of two adjacent second regions 12 are extracted and shown at the top of the drawing.

[0020] The first region 11 (FIG. 5) is a right-angled triangle containing a 30-degree angle. In the first region 11, a large number of ridges 1R are arranged in parallel, with two ridges 1R adjacent to each other with a gap of a fixed width, and the gap width is the same for all combinations of two adjacent ridges 1R. Throughout the entire first region 11, linear ridges 1R are arranged at a fixed pitch (equally spaced) so that they are parallel to each other. The height of the ridges 1R is 10 μm, corresponding to the depth D of the grooves 4T (see FIG. 4) of approximately 10 μm on the molding surface 40. The width of the ridges 1R is 50 μm, corresponding to the width W of the grooves 4T of 50 μm on the molding surface 40. The pitch of the parallel ridges 1R is approximately 200 μm. Since the width W of the groove 4T is 50 μm, the width of the gap between adjacent parallel ridges 1R is 150 μm.

[0021] The second region 12 (FIG. 5) is a region in which 12 pieces of the first region 11, which share a vertex 13, are combined to form a regular hexagon (an example of a regular polygon) as a whole. In the second region 12, two first regions 11 with ridges 1R formed in different directions are arranged adjacent to each other via an imaginary straight line L, which is an example of a line of a predetermined shape starting from the vertex 13. As a result, in the second region 12, the first regions 11 are arranged without gaps around the entire circumference centered on the vertex 13.

[0022] Each of the 12 first regions 11 belonging to the second region 12 includes two pieces of the same type of first region 11 with the same ridge 1R formation direction. In the second region 12, two circumferentially adjacent first regions 11 are of different types, and six types of 12 pieces of first regions 11 are arranged so as to be symmetrical with respect to an imaginary line L originating from the center of the regular hexagon and a vertex 13 of the regular hexagon. Here, first regions 11 of the same type mean that the ridges 1R are formed in the same direction. First regions 11 of different types mean that the ridges 1R are formed in different directions. The second region 12 includes linear ridges 1R in six directions.

[0023] On the design surface 1S that forms the design surface of the resin molded product 1, the second regions 12 are arranged without any gaps so that two second regions 12 are adjacent to each other across one side of a regular hexagon, forming a pattern 100. In this pattern 100, where two second regions 12 are adjacent, first regions 11 of the same type are adjacent to each other across one side of the right triangle. Adjacent first regions 11 of the same type are integrated and appear to form a single region across the boundaries of the second regions 12 when viewed visually.

[0024] Next, we will explain the visual effect of the pattern 100 formed on the design surface 1S of the resin molded product 1. As described above, the pattern on the design surface 1S of the resin molded product 1 is a pattern in which second regions 12 (FIG. 5) consisting of a combination of 12 pieces of first regions 11 of six types, each with a different direction of formation of linear ridges 1R, are arranged without gaps.

[0025] As shown in Figure 6, the design surface 1S of the resin molded product 1 on which this pattern 100 is formed is composed of convex ridges 1R and glossy surfaces 118 between the parallel ridges 1R. Here, the glossy surfaces 118 are highly smooth surfaces formed by the mirror-finished molding surface 40 of the molding die 4. When viewing the design surface 1S from viewpoint A in Figure 6, the direction in which light is reflected varies depending on the slopes on both sides of the ridges 1R and the glossy surfaces 118 between the ridges 1R.

[0026] On the design surface 1S, depending on the position of the viewpoint, either the slopes of the ridges 1R or the glossy surface 118 strongly reflect light. Furthermore, when the ridges 1R reflect light, the orientation of the slopes of the ridges 1R differs depending on the type of first region 11, so which of the ridges 1R in which first region 11 strongly reflects light changes depending on the position of the viewpoint. Furthermore, when the glossy surface 118 strongly reflects light, whether or not the glossy surface 118 can be seen from the viewpoint may change depending on the direction of the ridges 1R, i.e., whether or not the light reflected by the glossy surface 118 is incident on the viewpoint may change depending on the type of first region 11. In such cases, differences in brightness occur depending on the type of first region 11.

[0027] In this way, on the design surface 1S of the resin molded product 1, differences occur in the intensity of reflected light for each type of first region 11. In other words, on the design surface 1S, a contrast in brightness occurs for each type of first region 11, and shadows or light and dark appear in each region like a patchwork. This causes shading or light and dark between the regions (first regions 11) belonging to the second region 12, and can create a three-dimensional effect in the pattern 100, as exemplified in FIG. 7.

[0028] Furthermore, for example, when the viewpoint moves from A to B (see FIG. 6), the degree of light reflection varies for each region, which causes a change in the shading or brightness of each region (first region 11) belonging to second region 12. If the shading or brightness of each region changes, a visual effect of a change in the three-dimensional appearance of pattern 100 is produced accordingly.

[0029] Furthermore, in the resin molded product 1 of this example, the design surface 1S is not flat, but has curved surfaces at the upper and lower edges. On the curved surface, depending on the position, the type of first region 1 that strongly reflects light changes, and the ridges 1R and the glossy surface 118 that strongly reflect light also change. Therefore, as shown in the photographs of Figures 8(a) and (b), on the curved surface, the type that is brightest and the type that is darkest among the multiple types of first regions 11 change depending on the position. Therefore, on the curved surface, more complex shadows or light and dark areas are created, producing a variety of visual effects.

[0030] As described above, the resin molded product 1 of this example has a design surface 1S with a pattern 100 that produces a variety of visual effects and an excellent aesthetic appearance. In particular, in this example, the combination of first regions 11 with different ridge directions 1R creates a three-dimensional effect in the pattern. This pattern is a repeating pattern in which second regions 12, each consisting of a combination of first regions 11, are arranged without gaps, giving the viewer a sense of the beauty of the orderly arrangement. This pattern 100 produces shadows or light and shade in each region, creating a three-dimensional effect depending on this shadow or light and shade. Furthermore, the shadows or light and shade change depending on the viewing direction of the pattern 100, thereby changing the three-dimensional effect. This pattern 100 can produce a variety of visual effects depending on the viewing direction. Furthermore, on a surface with varying inclination of the surface to which the pattern 100 is applied, such as a curved surface, different visual effects can be produced at different positions.

[0031] In this way, the design surface 1S of the resin molded product 1 of this example can create a visual effect on the surface without requiring work processes such as painting or surface treatment. Therefore, this resin molded product 1 is an excellent product that exhibits high design while keeping production costs down. Since the resin molded product 1 of this example is molded from a black colored resin material, it does not require painting.

[0032] The fine ridges 1R provided on the design surface 1S have the effect of preventing fingerprints from adhering to the glossy surface 118 between the ridges 1R, scratches, etc. Therefore, the design surface provided with the ridges 1R can maintain its aesthetic appearance for a long time.

[0033] In this example, the resin molded product 1 is exemplified as an upper housing for a shift lever device. However, the resin molded product may be used for decorative parts for vehicles, such as interior components for vehicles, such as console boxes and instrument panels, or exterior components for vehicles, such as grilles and wheel caps. Furthermore, in addition to decorative parts for vehicles, resin molded products may be used for decorative parts for various items, such as home appliances, office equipment, and furniture. Furthermore, colored resin materials other than black may be used as the resin material. The surface shape of the design surface is not limited to a flat surface, but may be a convex curved surface, a concave curved surface, or may include a convex or concave step. Furthermore, a pattern consisting of ridges 1R may be provided on only a portion of the design surface, rather than the entire surface. Furthermore, the cross-sectional shape of the ridges 1R may be a mountain shape, a semicircular shape, a trapezoidal shape, or the like.

[0034] In this example, laser processing is used as an example of a processing method for providing the grooves 4T on the molding surface 40 of the mold 4. Instead of laser processing, the grooves 4T may be formed by, for example, engraving or cutting. Furthermore, as a resin molding method for the resin molded product 1, in addition to the injection molding of this example, molding methods such as blow molding and compression molding may also be used.

[0035] In this example, the visual effect is enhanced by providing convex ridges 1R on the surface of the resin molded product 1, but concave grooves may be provided instead of the convex ridges 1R. Concave grooves can also produce a visual effect similar to that of this example. However, in terms of the effect of preventing fingerprints and the like from adhering to the design surface, the ridges 1R are expected to have a higher anti-fouling effect. In this example, the ridges 1R formed by inclined surfaces that reflect light are used, but instead, ridges 1R or grooves that disperse light and have low light reflectance may be used.

[0036] In this example, the formation width of the ridges 1R is 50 μm. The formation width of the ridges 1R is preferably a width that is difficult to see when viewed from the extension direction of the ridges 1R, and is preferably 10 to 200 μm. If it is less than 10 μm, the reflection of light on the inclined surface of the ridges 1R may be difficult to see. If it exceeds 200 μm, the ridges 1R may be easily seen as lines, and the difference in appearance from conventional line patterns may be reduced. Preferably, the formation width of the ridges 1R is 50 μm ± 20 μm. If the formation width of the ridges 1R is 50 μm ± 20 μm, the ridges 1R are difficult to see as lines when viewed from the extension direction of the ridges 1R, and the areas of ridges 1R lined up in the same direction are seen as if they were a single surface.

[0037] In this example, the width of the gap between the parallel ridges 1R is 150 μm. The gap width should be 20 to 800 μm. If the gap width is less than 20 μm, the width of the flat portion between adjacent ridges 1R is reduced, reducing the glossy surface that reflects light, which may reduce the contrast between light and dark and make it difficult to visually recognize the three-dimensional effect. If the gap width exceeds 800 μm, the width of the flat portion increases, resulting in an excessive amount of glossy surface that reflects light, which may be perceived as a simple glossy design. The maximum value of the range of the width of the gap between the ridges 1R is preferably 150 μm. If the gap width is 150 μm or less, the width of the flat portion can ensure a glossy surface that reflects light appropriately, resulting in a well-balanced contrast between light and dark and an easily visually recognized three-dimensional effect.

[0038] In this example, the height of the ridges 1R is 10 μm. The height of the ridges 1R should be 2 μm to 30 μm. If the height is less than 2 μm, the reflective surface of the ridges 1R becomes small, reducing the difference in reflection between the flat portion and the inclined surface, which may make it difficult to visually recognize the three-dimensional effect. If the height exceeds 30 μm, it may have an adverse effect on the releasability of the resin molding. Preferably, the height of the ridges 1R should be 5 μm to 25 μm. If the height of the ridges 1R is 5 μm to 25 μm, the angle of the uneven slope becomes appropriate and the difference in reflection between the flat portion and the inclined surface can be ensured, making the three-dimensional effect more easily visible and achieving the effect of improving the releasability of the resin molding. In this example, a metal molding die 4 is used as an example, but a resin molding die may also be used.

[0039] Example 2 This example is an example in which the pattern of the design 100 is changed based on the first embodiment. This will be described with reference to Figs. 9 shows an example of a pattern 100 made up of regular hexagonal second regions 12 formed by combining six equilateral triangular first regions 11. In this pattern 100, the six first regions 11 share a vertex 13, and the first regions 11 are arranged without gaps around the entire circumference of the vertex.

[0040] Furthermore, in the first region 11 of the figure, the width of the gap between the parallel ridges 1R is not constant, but is narrower closer to the vertex 13 and wider further away from the vertex 13. Setting the gap between the ridges 1R in this way creates a visual effect of concentrating on the vertex 13. The width of the gap is 70 μm at its narrowest point and 240 μm at its widest point.

[0041] Figure 10 shows an example in which the setting of the gap between the ridges 1R in the first region 11 has been changed based on Figure 9. In each first region 11 in the figure, as in Figure 9, the width of the gap between the parallel ridges 1R is not constant. The width of the gap between the ridges 1R in the first region 11 is wider the closer to the vertex 13 and narrower the farther from the vertex 13. Figure 10 creates a visual effect of surrounding the center where the vertex 13 is located. The width of the gap is 70 μm at its narrowest point and 240 μm at its widest point.

[0042] FIG. 11 shows an example of a pattern 100 consisting of square-shaped (regular quadrilateral) second regions 12 formed by combining four first regions 11 each having a right-angled isosceles triangle shape. In this pattern 100, the four first regions 11 share a vertex 13, and the first regions 11 are arranged without gaps around the entire circumference of the vertex. As with the pattern 100 in FIG. 9, the width of the gaps between the ridges 1R in the first regions 11 is not constant; the closer to the vertex 13, the narrower the width, and the farther from the vertex 13, the wider the width. The gap width is 70 μm at its narrowest point and 200 μm at its widest point.

[0043] FIG. 12 shows an example in which the setting of the gap between the ridges 1R in the first region 11 has been changed based on FIG. 11. In this pattern, similar to the pattern 100 in FIG. 10, the width of the gap between the ridges 1R in the first region 11 is not constant, but is wider closer to the vertex 13 and narrower farther from the vertex 13. The width of the gap is 70 μm at its narrowest point and 200 μm at its widest point.

[0044] The shape of the second region 12 may be any polygonal shape, such as a triangular shape or a pentagonal shape. The other configurations and effects are the same as those of the first embodiment.

[0045] Example 3 This example is based on the first embodiment and is an example of the configuration of the pattern 100 in which the line (adjacent line) dividing the two first regions 11 in the second region 12 is curved. 13, in the pattern 100 of this example, the second region 12 has a square shape. In the second region 12, four first regions 11 are arranged without gaps around the entire circumference, centered on a vertex 13. In the second region 12, an imaginary curve L (an example of a line with a predetermined shape) that separates adjacent first regions 11 is a curve like a waveform for 1 / 4 cycle from the zero crossing point where the positive and negative sides of the sine wave are inverted to the positive or negative extreme point.

[0046] This pattern 100 employs curved ridges 1R. The ridges 1R are arc-shaped with the vertex 15 of the square-shaped second region 12 as the center. Where two second regions 12 are adjacent, two first regions 11 of the same type are adjacent, but belong to different second regions 12. Here, in this example, the same type of first region 11 means that the centers (vertices 15) of the arc-shaped ridges 1R are the same, and different types of first regions 11 means that the centers (vertices 15) of the arc-shaped ridges 1R are different.

[0047] The shape of the ridge 1R may be various curved shapes instead of the arc shape of this example. The other configurations and effects are the same as those of the first embodiment.

[0048] Although specific examples of the present invention have been described in detail as examples, these examples merely disclose examples of the technology encompassed by the claims. Needless to say, the scope of the claims should not be interpreted as being limited by the configurations, numerical values, etc. of the specific examples. The claims encompass technologies that are obtained by variously modifying, changing, or appropriately combining the specific examples using publicly known technology and the knowledge of those skilled in the art. [Explanation of symbols]

[0049] 1. Resin molded products (components) 1R ridge 1S Design surface (top) 11 First Area (First Area) 118 Glossy surface 12 Second Area (Second Area) 13 Vertex 15 Vertex 100 patterns 4 Molding mold 4T groove 40 Molding surface 41 Lower mold 42 Upper mold L Straight lines, curved lines (lines of a specified shape)

Claims

1. A component including a design surface composed of at least one of a flat surface and a curved surface, a first region of a predetermined shape is provided on the design surface, in which a plurality of combinations of two convex ridges or two concave grooves are formed in parallel with a gap of a certain width; On the design surface, at least three first regions sharing a common vertex are arranged around the entire circumference in a circumferential direction centered on the vertex to form a second region, and a repeating pattern is formed on the design surface in which the second regions are arranged without gaps, In the second region, two first regions adjacent to each other in the circumferential direction around the apex are a combination of regions in which the convex ridges or concave grooves are oriented in different directions, and are adjacent to each other without any gaps via a line of a predetermined shape that starts at the apex and extends toward the outer periphery, A component characterized in that in the second region, first regions of the same shape are arranged without gaps around the entire circumference centered on the vertex, and lines of the predetermined shape extending from the vertex toward the outer periphery are formed at equal intervals in the circumferential direction.

2. According to claim 1, each of the first regions forming the second region is a region in which the convex ridges or concave grooves are provided along a certain direction, the predetermined shape of the line in the second region is a straight line or a curved line, and the second region is a regular polygon; In the design surface, two adjacent second regions are adjacent to each other in a state where they share one side of the regular polygonal shape, so that the plurality of second regions are arranged without any gaps; A component characterized in that a first region that forms one of two adjacent second regions and a first region that forms the other of the two second regions are combined, and that the directions of the convex ridges or concave grooves in the two first regions that are adjacent via one side are the same.

3. According to claim 2, the first region has a triangular shape that shares one side of the regular polygonal shape of the second region, and the convex ridge or concave groove is provided in parallel to the one side, A component characterized in that the width of the gaps between the parallel convex ridges or concave grooves in the first region gradually increases or decreases with increasing distance from the apex.

4. 4. The member according to claim 1, wherein the gaps between the convex ridges or the concave grooves on the surface of the first region are formed by a glossy surface.

5. 5. The member according to claim 1, wherein the first region has convex ridges formed therein.

6. 6. The member according to claim 1, which is an interior member for a vehicle.

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