Skin material, interior material, and method for manufacturing interior material

Abstract

The present invention addresses the problem of making it possible to easily position a stitch pattern such as an outer stitch applied to an appearance surface with respect to a base material and to improve workability related to fixation toward the base material. The interior material (1) is composed of a surface material (20) and a base material (10), the surface material (20) is made of a resin material, the surface of the surface material (20) is an appearance surface (20a), the back surface of the surface material (20) is a fixing surface (20b), the fixing surface (20b) of the surface material (20) is fixed on the base material (10), an outer trace (22) is formed on the appearance surface (20a) of the surface material (20), a convex part (23) is formed on the fixing surface (20b) along the outer trace (22), and a hole part (12) for clamping the convex part (23) is formed on the base material (10). The surface material (20) is fixed to the base material (10) by engaging the protrusions (23) with the holes (12).

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a skin material for use as an interior material of an automobile, for example, which is formed by applying a stitch pattern to a surface by sewing and fixing to a base material, an interior material formed by fixing the skin material to a base material, and a manufacturing method for manufacturing an interior material by fixing a skin material to a base material. BACKGROUND

[0002] For example, as disclosed in Patent Literature 1, in an interior material of an automobile, there is a case where a stitch pattern based on sewing or the like is applied to a surface in order to improve designability. In this case, the interior material is formed by respectively producing a base material and a skin material to which a stitch pattern is applied, and fixing the skin material on the surface of the base material.

[0003] Figure 9 A portion of the interior material 40 in which an outer stitch 48 as a stitch pattern appears along a corner portion 41 is shown. Figure 10 An enlarged view of a cross section orthogonal to the corner portion 41 is shown.

[0004] The interior material 40 is composed of a base material 42 having an inner corner portion 43 matching the corner portion 41 and a skin material 44 fixed on the surface of the base material 42. The skin material 44 is divided into a lower side skin 45 and an upper side skin 46. Further, the folded end portion 47 of the upper side skin 46 is overlapped with the upper end portion of the lower side skin 45, and is sewn by an outer stitch 48 and an inner stitch 49. An alignment groove 50 for positioning the sewn portions of the lower side skin 45 and the upper side skin 46 is formed on the surface of the inner corner portion 43.

[0005] Therefore, when fixing the skin material 44, an adhesive is applied to the inner surface of the alignment groove 50 and the upper end portion of the lower side skin 45, and the outer stitch 48 is adhered by visually aligning the outer stitch 48 with the alignment groove 50. After that, the outer periphery of the skin material 44 is adhered in a state of being folded to the back side of the base material 42, and the interior material 40 in which the skin material 44 is fixed to the base material 42 can be obtained.

[0006] PRIOR ART DOCUMENTS

[0007] PATENT LITERATURE

[0008] Patent Literature 1: Japanese Patent No. 4933260 SUMMARY

[0009] PROBLEMS TO BE SOLVED BY THE INVENTION

[0010] The above-described conventional skin material 44 is adhered by visually aligning the position of the outer stitch 48 with the alignment groove 50. Therefore, the positioning of the outer stitch 48 is difficult, and if the outer stitch 48 is shifted or meanders, it is necessary to re-adhere. This results in time-consuming fixing work.

[0011] Therefore, an object of the present disclosure is to provide a skin material, an interior material, and a manufacturing method of an interior material, capable of easily positioning a needle pattern such as an outer thread applied to an appearance surface with respect to a base material, and excellent in workability involved in fixing toward the base material. Method for solving the problem

[0012] To achieve the above object, a first configuration of the present disclosure is a skin material formed of a resin material, a surface of which is an appearance surface, and a back surface of which is a fixing surface, the fixing surface being fixed to a base material, characterized in that,

[0013] a predetermined needle pattern is formed on the appearance surface, and

[0014] a convex portion or a concave portion is formed on the fixing surface along the needle pattern,

[0015] by engaging the convex portion or the concave portion with an engaged portion formed on the base material, the skin material can be fixed to the base material.

[0016] Another aspect of the first configuration is characterized in that, in the above configuration, a plurality of convex portions or concave portions are arranged at a predetermined interval toward a predetermined first direction.

[0017] Another aspect of the first configuration is characterized in that, in the above configuration, the convex portion or the concave portion has a protruding convex portion or a protruding concave portion protruding toward a second direction intersecting the first direction.

[0018] Another aspect of the first configuration is characterized in that, in the above configuration, the convex portion or the concave portion has a plurality of protruding convex portions or protruding concave portions extending toward a predetermined first direction and protruding toward a second direction intersecting the first direction at a predetermined interval in the first direction.

[0019] Another aspect of the first configuration is characterized in that, in the above configuration, the convex portion or the concave portion includes a first convex portion or a first concave portion and a second convex portion or a second concave portion, which are alternately arranged continuously along a predetermined first direction, and the first convex portion or the first concave portion and the second convex portion or the second concave portion differ in width in a second direction orthogonal to the first direction.

[0020] Another aspect of the first configuration is characterized in that, in the above configuration, the convex portion or the concave portion includes a first convex portion or a first concave portion and a plurality of second convex portions or second concave portions, which are alternately arranged at a predetermined interval along a predetermined first direction, and each first convex portion or each first concave portion and each second convex portion or each second concave portion are arranged to be separated toward a second direction orthogonal to the first direction.

[0021] Another aspect of the first configuration is characterized in that, in the above configuration, each first convex portion or each first concave portion and each second convex portion or each second concave portion are the same shape.

[0022] Another aspect of the first configuration is characterized in that, in the above configuration, the width of each first protrusion or each first recess and each second protrusion or each second recess in the second direction is different from each other.

[0023] Another aspect of the first configuration is characterized in that, in the above configuration, the stitch pattern is formed by sewing.

[0024] Another aspect of the first configuration is characterized in that, in the above configuration, a sewing reference line is formed on the appearance surface in parallel with the protrusions or the recesses.

[0025] Another aspect of the first configuration is characterized in that, in the above configuration, the stitch pattern is formed by embossing.

[0026] To achieve the above object, a second configuration of the present disclosure is an interior material composed of a skin material and a base material,

[0027] The skin material is formed of a resin material, has an appearance surface on the front side and a fixing surface on the back side,

[0028] The base material is for fixing the fixing surface of the skin material, and is characterized in that,

[0029] A predetermined stitch pattern is formed on the appearance surface of the skin material, and protrusions or recesses are formed on the fixing surface along the stitch pattern, and on the other hand,

[0030] A fitting portion is formed on the base material, which can be fitted with the protrusions or the recesses,

[0031] The skin material is fixed to the base material by fitting the protrusions or the recesses with the fitting portion.

[0032] To achieve the above object, a third configuration of the present disclosure is a manufacturing method of an interior material, which manufactures the interior material by fixing a skin material formed of a resin material, having an appearance surface on the front side and a fixing surface on the back side, to a base material, and is characterized in that,

[0033] The manufacturing method of the interior material performs the following steps:

[0034] A predetermined stitch pattern is formed on the appearance surface of the skin material, and protrusions or recesses are formed on the fixing surface along the stitch pattern;

[0035] A fitting portion is formed on the base material, which can be fitted with the protrusions or the recesses, and

[0036] The skin material is fixed to the base material by fitting the protrusions or the recesses with the fitting portion.

[0037] Effects of the Invention

[0038] According to the present disclosure, without visualizing the stitch pattern, the stitch pattern can be easily positioned at an appropriate position relative to the base material by engaging the convex portion or the concave portion with the engaged portion. Thus, workability involved in fixing to the base material becomes excellent. Furthermore, since an adhesive is no longer required at the portion of the stitch pattern, the man-hours required for manufacturing the interior material are reduced. In addition, separation of the skin material from the base material is also easy, for example, at the time of disposal.

[0039] According to another aspect of the first configuration, the convex portions or the concave portions are provided in a plurality at a predetermined interval toward a predetermined first direction. Thus, in addition to the above effects, the portion of the stitch pattern is positioned at a plurality of positions, and displacement of the position of the stitch pattern is suppressed. In addition, the integrality of the skin material with the base material is also improved.

[0040] According to another aspect of the first configuration, the convex portions or the concave portions have protruding convex portions or protruding concave portions. In addition, the first convex portions or the first concave portions, and the second convex portions or the second concave portions are provided to have different widths in a second direction. Furthermore, the plurality of first convex portions or the plurality of first concave portions, and the plurality of second convex portions or the plurality of second concave portions are arranged to be separated in the second direction. Thus, in addition to the above effects, displacement of the skin material can be effectively prevented, and the integrality of the skin material with the base material in the engaged state is further improved.

[0041] According to another aspect of the first configuration, in addition to the above effects, by sewing to form the stitch pattern, an appearance surface with high designability can be obtained.

[0042] According to another aspect of the first configuration, a sewing reference line is formed on the appearance surface in parallel with the convex portions or the concave portions. Thus, in addition to the above effects, it becomes easy to apply the stitch pattern as a reference of the sewing position.

[0043] According to another aspect of the first configuration, in addition to the above effects, the stitch pattern is formed by embossing, and thus the stitch pattern can be simply formed. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is a perspective view showing a part of an interior material.

[0045] Figure 2 is a view showing a cross section orthogonal to a corner portion of the interior material.

[0046] Figure 3 is an explanatory view of a skin material, (A) is a side view as viewed from a D2 direction, and (B) is an enlarged cross-sectional view of A-A line.

[0047] Figure 4 is a perspective view showing a part of a base material.

[0048] Figure 5is a diagram showing a modification example of the convex portion.

[0049] Figure 6 is a diagram showing a modification example of the convex portion.

[0050] Figure 7 is a diagram showing a modification example of the convex portion.

[0051] Figure 8 is a diagram showing a modification example of the convex portion.

[0052] Figure 9 is a diagram showing a part of the conventional interior material.

[0053] Figure 10 is a diagram showing a part of the conventional interior material. DETAILED DESCRIPTION

[0054] Hereinafter, an embodiment of the present disclosure will be described based on the drawings.

[0055] Figure 1 is a diagram showing a part of the conventional interior material. Figure 9 is a diagram showing a part of the conventional interior material. Figure 2 is a diagram showing a part of the conventional interior material.

[0056] The interior material 1 is composed of a base material 10 and a skin material 20 fixed on a surface of the base material 10.

[0057] The skin material 20 is made of a resin material such as polyurethane by injection molding such as RIM molding. The skin material 20 is in a sheet shape, and a surface thereof is an appearance surface 20a, and a back surface thereof is a fixing surface 20b. On the appearance surface 20a, at a position corresponding to the corner portion 2, a groove-shaped sewing reference line 21 is formed in a straight line shape in a D1 direction extending toward the corner portion 2. At a bottom of the sewing reference line 21, an outer stitch 22 is applied in parallel to the D1 direction. The outer stitch 22 is applied to the sewing reference line 21 after the injection molding of the skin material 20.

[0058] As shown in FIG. 1, on the fixing surface 20b of the skin material 20, a plurality of convex portions 23, 23... are formed in protrusion. Each of the convex portions 23 is arranged in a straight line shape in the D1 direction at a predetermined interval. The arrangement position becomes a position slightly shifted with respect to the outer stitch 22. Each of the convex portions 23 becomes a top view oblong shape in which a length in the D1 direction is larger than a length (width) in a D2 direction orthogonal to the D1 direction in a surface direction of the skin material 20 in a planar state as shown in FIG. 2. Figure 3 Figure 3 At a protruding end of each of the convex portions 23, a round bar-shaped anti-coming-off portion 24 having a width larger than that of a root side is integrally formed.

[0059] ​The base material 10 is made of a resin material such as PP or ABS by injection molding, as shown in Figure 4 has an inner corner portion 11 that matches the corner portion 2. The inner corner portion 11 is formed with a plurality of hole portions 12, 12,... that are the same number as the convex portions 23 of the skin material 20. Each hole portion 12 penetrates the base material 10 in the thickness direction and is arranged linearly in the Dl direction at the same interval as each convex portion 23 of the skin material 20.

[0060] Each hole portion 12 is formed to be slightly larger than the length and width of the convex portions 23 except for the anti -drop portion 24, and is formed to be slightly smaller than the width of the anti -drop portion 24.

[0061] When the skin material 20 made as described above is fixed to the base material 10, as shown in Figure 2 each convex portion 23 of the skin material 20 is sequentially inserted into each hole portion 12 of the base material 10. Then, the anti -drop portion 24 elastically deforms the hole portion 12 to allow the convex portion 23 to penetrate, and the anti -drop portion 24 becomes a state of protruding from the back surface of the base material 10. Thus, when all the convex portions 23 are inserted into the hole portions 12, the skin material 20 is fixed by the engagement of each convex portion 23 with each hole portion 12. In this fixed state, the outer stitches 22 appear linearly in the Dl direction without meandering.

[0062] Then, the outer periphery of the skin material 20 is folded at the end portion of the base material 10 and adhered to the base material 10, and thus the interior material 1 in which the skin material 20 is fixed to the surface of the base material 10 is obtained.

[0063] Thus, the skin material 20 of the above embodiment is formed with the outer stitches 22, which are one example of a stitch pattern, on the appearance surface 20a, and on the other hand, a plurality of convex portions 23 are formed along the outer stitches 22 on the fixing surface 20b. Therefore, by engaging the convex portions 23 with the hole portions 12, which are one example of an engaged portion, formed on the base material 10, the skin material 20 can be fixed to the base material 10.

[0064] According to this structure, without visually checking the outer stitches 22, the outer stitches 22 can be easily positioned at an appropriate position with respect to the base material 10 by engaging the convex portions 23 with the hole portions 12. Therefore, the workability involved in the fixing to the base material 10 is made excellent. Further, an adhesive is not required in the portion of the outer stitches 22, and thus the working hours required for manufacturing the interior material 1 are reduced. In addition, for example at the time of disposal, the separation of the skin material 20 from the base material 10 is easily performed.

[0065] The convex portions 23 are arranged a plurality of times at predetermined intervals in the Dl direction, which is one example of the first direction.

[0066] As a result, the outer stitches 22 can be positioned at multiple locations, thereby suppressing positional deviation of the outer stitches 22. In addition, the integrity of the skin material 20 and the base material 10 is further improved.

[0067] The stitch pattern is formed by the outer stitches 22 .

[0068] Thereby, the design surface 20a with high design properties can be obtained.

[0069] A sewing reference line 21 arranged parallel to the convex portion 23 is formed on the design surface 20 a .

[0070] This can serve as a reference for the position of the outer stitch 22, making it easier to apply the outer stitch 22.

[0071] In this way, the interior material 1 of the above embodiment is composed of a skin material 20 and a base material 10. The skin material 20 is formed of a resin material, and its front surface is an appearance surface 20a, and its back surface is a fixing surface 20b. The base material 10 is fixed to the fixing surface 20b of the skin material 20. An outer stitch 22 is formed on the appearance surface 20a of the skin material 20, and a protrusion 23 is formed along the outer stitch 22 on the fixing surface 20b. On the other hand, a hole portion 12 is formed on the base material 10, and the protrusion 23 can be engaged with the hole portion 12. By engaging the protrusion 23 with the hole portion 12, the skin material 20 is fixed to the base material 10.

[0072] In addition, the manufacturing method of the interior material 1 of the above-mentioned embodiment performs the following steps: forming an outer stitch 22 on the appearance surface 20a of the surface material 20, and forming a protrusion 23 along the outer stitch 22 on the fixing surface 20b; forming a hole portion 12 on the base material 10 for the protrusion 23 to be engaged; and engaging the protrusion 23 with the hole portion 12 to fix the surface material 20 to the base material 10.

[0073] In this interior material 1 and its manufacturing method, the outer stitching 22 can be easily positioned appropriately relative to the base material 10 simply by engaging the protrusions 23 with the holes 12, without visually inspecting the outer stitching 22. This improves workability in securing the skin material 20 to the base material 10. Furthermore, since adhesive is not required for the outer stitching 22, the labor required to manufacture the interior material 1 can be reduced. Furthermore, separation of the skin material 20 from the base material 10, for example, can be easily performed during disposal.

[0074] Hereinafter, modified examples of the present invention will be described.

[0075] The shape of the protrusion provided on the surface material can be modified appropriately in addition to the above embodiment. The anti-slip portion is not limited to the round rod shape as in the above embodiment, and can also be in the shape of an arrow with a barb, for example. Of course, the anti-slip portion can also be omitted.

[0076] The length of the protrusion in the D1 direction can be shorter or longer than in the above embodiment.

[0077] The protrusion can be longer than in the above embodiment.

[0078] The protrusion is not limited to the above embodiment, and can have other shapes such as a circular shape or a cross shape in plan view.

[0079] The engaged portion provided on the base material is formed to match the protrusion. The engaged portion is not limited to the hole portion of the above embodiment, and can be a recess.

[0080] Hereinafter, examples of modifications of the protrusion will be specifically described.

[0081] In addition, although not specifically described, as the shape of the protrusion is modified, the hole portion or the recess provided on the base material is also formed to have a shape that engages the modified protrusion.

[0082] Figure 5 An example in which a protruding protrusion 25 that protrudes in the D2 direction is integrally formed on the side surface of the protrusion 23 to have a T shape in plan view is shown. Accordingly, each hole portion 12 of the base material 10 also has a T shape in plan view with a protruding hole portion 13 corresponding to the protruding protrusion 25 connected thereto. Figure 5 An enlarged view of a cross section of the base material 10 in the surface direction in a portion in which each protrusion 23 and the protruding protrusion 25 engage with each hole portion 12 and the protruding hole portion 13, respectively, is shown. The following modification examples are also the same.

[0083] In this way, the protruding protrusion 25 that protrudes in the D2 direction, which is an example of a second direction orthogonal to the D1 direction, is provided on the protrusion 23. Thus, the position of the skin material 20 can be effectively prevented from shifting, and the integration of the skin material 20 and the base material 10 in the engaged state can be further improved.

[0084] In addition, the protruding direction of the protruding protrusion 25 can be a direction that intersects the D1 direction, and is not limited to the orthogonal D2 direction, but can be a direction that is inclined with respect to the D1 direction. This method is also applicable to other modification examples having the protruding protrusion 25. Furthermore, the protruding direction of the protruding protrusion 25 can be a direction opposite to the example of Figure 5 , and each protrusion 23 can be provided to protrude alternately.

[0085] Figure 6 An example in which the protrusion is provided as a plate-shaped protrusion 30 that extends longer in the D1 direction than in the above embodiment is shown. On the side surface of the plate-shaped protrusion 30, the protruding protrusion 25 that is the same as Figure 5 is integrally formed at a plurality of positions spaced apart at predetermined intervals in the D1 direction.

[0086] Thus, the protrusions are provided as plate-shaped protrusions 30 extending in the D1 direction, and a plurality of protruding protrusions 25 projecting in a D2 direction orthogonal to the D1 direction are provided at predetermined intervals in the D1 direction. In this case, the position shift of the skin material 20 can be effectively prevented, and the integration of the skin material 20 and the base material 10 in the engaged state can be further improved.

[0087] In addition, in the Figure 6 , the protruding direction of the protruding protrusions 25 can also be reversely provided. Further, the protruding protrusions 25 can be provided to protrude alternately sandwiching the plate-shaped protrusions 30.

[0088] Figure 7 An example is shown in which the protrusions are provided as plate-shaped protrusions 30A extending in the D1 direction, and the plate-shaped protrusions 30A are provided in a shape in which a plurality of first protrusions 31 and a plurality of second protrusions 32 having different widths in the D2 direction are alternately arranged and continuous.

[0089] Thus, the protrusions are provided as plate-shaped protrusions 30A including the first protrusions 31 and the second protrusions 32 alternately arranged in series in the D1 direction, and the widths of the first protrusions 31 and the second protrusions 32 in the D2 direction are made different. In this case, the position shift of the skin material 20 can be effectively suppressed, and the integration of the skin material 20 and the base material 10 in the engaged state can be further improved.

[0090] In addition, in the Figure 7 , the first protrusions 31 and the second protrusions 32 are arranged with the centers of the widths in the D2 direction aligned on one straight line in the D1 direction, but the first protrusions 31 and the second protrusions 32 can be arranged with the centers offset from each other. The offset mode of the centers can be alternating or random.

[0091] Figure 8 An example is shown in which the first protrusions 31 and the second protrusions 32 are provided in the same shape and arranged to be separated in the D1 direction and staggered in the D2 direction.

[0092] Thus, the protrusions are provided as plate-shaped protrusions 30A including a plurality of first protrusions 31 and a plurality of second protrusions 32 alternately arranged at predetermined intervals in the D1 direction, and the first protrusions 31 and the second protrusions 32 are arranged to be separated in the D2 direction. In this case, the position shift of the skin material 20 can be effectively prevented, and the integration of the skin material 20 and the base material 10 in the engaged state can be further improved.

[0093] In addition, the widths of the first protrusions 31 and the second protrusions 32 in the D2 direction can also be provided as different from each other as in Figure 7 .

[0094] In the above embodiment and each modification, although the protruding portion is formed on the skin material and the hole portion or the recessed portion is formed on the base material, the reverse can also be possible, in which the protruding portion is provided on the surface of the base material and the recessed portion for engaging the protruding portion is formed on the fixing surface of the skin material.

[0095] In the above embodiment and each modification, the form of the outer stitch can be appropriately changed. Of course, the stitch pattern is not limited to sewing of the outer stitch. The stitch pattern can also be formed by, for example, embossing (embossing processing), and can be printed on the appearance surface. In any of these ways, the stitch pattern can be formed at the same time as the molding of the skin material and simply.

[0096] The stitch pattern can also be provided as a plurality of lines.

[0097] The sewing reference line is not limited to the groove shape in the above embodiment, and can also be a line shape. The sewing reference line can also be omitted.

[0098] The shapes of the skin material and the base material can be appropriately changed. The present disclosure is not only applicable to the corner portion of the interior material, but also applicable to the planar portion on which the stitch pattern based on sewing is visualized.

[0099] Explanation of Reference Numerals

[0100] 1, interior material; 2, corner portion; 10, base material; 11, inner corner portion; 12, hole portion; 13, protruding hole portion; 20, skin material; 20a, appearance surface; 20b, fixing surface; 21, sewing reference line; 22, outer stitch; 23, protruding portion; 24, anti-disengagement portion; 25, protruding protruding portion; 30, 30A, plate-shaped protruding portion; 31, first protruding portion; 32, second protruding portion.

Claims

1. A skin material, which is formed of a resin material, has a front surface as an appearance surface and a back surface as a fixing surface, wherein the fixing surface is fixed to a base material, characterized in that: A predetermined stitch pattern is formed on the exterior surface. A convex portion or a concave portion is formed on the fixing surface along the stitch pattern. The skin material can be fixed to the base material by engaging the convex portion or the concave portion with the engaged portion formed on the base material.

2. The surface material according to claim 1, characterized in that A plurality of the convex portions or the concave portions are arranged at predetermined intervals in a predetermined first direction.

3. The surface material according to claim 2, characterized in that The convex portion or the concave portion includes a protruding convex portion or a protruding concave portion that protrudes in a second direction intersecting with the first direction.

4. The skin material according to claim 1, characterized in that The convex portion or the concave portion includes a plurality of protruding convex portions or protruding concave portions extending in a predetermined first direction and protruding in a second direction intersecting the first direction at predetermined intervals in the first direction.

5. The skin material according to claim 1, characterized in that The convex portion or the concave portion includes a first convex portion or a first concave portion, and a second convex portion or a second concave portion, which are continuously and alternately arranged along a predetermined first direction, and the first convex portion or the first concave portion, and the second convex portion or the second concave portion have different widths in a second direction orthogonal to the first direction.

6. The surface material according to claim 1, characterized in that The convex portion or the concave portion includes a plurality of first convex portions or first concave portions, and second convex portions or second concave portions, which are alternately arranged at predetermined intervals along a predetermined first direction, and each of the first convex portions or each of the first concave portions, and each of the second convex portions or each of the second concave portions are arranged to be separated in a second direction orthogonal to the first direction.

7. The skin material according to claim 6, characterized in that Each of the first convex portions or each of the first concave portions, and each of the second convex portions or each of the second concave portions have the same shape.

8. The skin material according to claim 6, characterized in that The widths of the first convex portions or the first concave portions, and the second convex portions or the second concave portions in the second direction are different from each other.

9. The skin material according to claim 1, characterized in that The stitch pattern is formed by sewing.

10. The skin material according to claim 9, characterized in that A sewing reference line arranged parallel to the convex portion or the concave portion is formed on the exterior surface.

11. The skin material according to claim 1, characterized in that The stitch pattern is formed by embossing.

12. An interior material, which is composed of a surface material and a base material. The skin material is formed of a resin material, the surface is an appearance surface, and the back is a fixing surface. The base material is fixed to the fixing surface of the skin material, and is characterized in that: A predetermined needle pattern is formed on the exterior surface of the skin material, and convex or concave portions are formed along the needle pattern on the fixing surface. An engaged portion that can be engaged with the convex portion or the concave portion is formed on the base material, The skin material is fixed to the base material by engaging the convex portion or the concave portion with the engaged portion.

13. A method for producing an interior material, comprising fixing a skin material formed of a resin material, the surface of the skin material being an exterior surface and the back surface being a fixing surface, to a base material, wherein the method comprises: The manufacturing method of the interior material performs the following steps: forming a predetermined stitch pattern on the exterior surface of the skin material, and forming convex portions or concave portions along the stitch pattern on the fixing surface; forming an engaged portion on the substrate to be engaged with the convex portion or the concave portion; as well as The convex portion or the concave portion is engaged with the engaged portion to fix the skin material to the base material.

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