Surface material

Abstract

To enable a stitch pattern such as out stitch provided on a design surface to be easily positioned on a base material and also to achieve excellent workability for fixing to the base material.SOLUTION: An interior material 1 is formed of a resin material and comprises a skin material 20 consisting of a front surface to become a design surface 20a and a rear surface to become a fixed surface 20b, and a base material 10 to which the fixed surface 20b of the skin material 20 is fixed. An out stitch 22 is formed on the design surface 20a of the skin material 20, while a protrusion 23 is formed along the out stitch 22 on the fixed surface 20b. A hole part 12 with which the protrusion 23 can be engaged is formed on the base material 10. The skin material 20 is fixed to the base material 10 by engaging the protrusion 23 with the hole part 12.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a skin material that is used as an interior material for automobiles by being fixed to a base material and having a stitch pattern applied to its surface by sewing or the like. To Regarding. [Background technology]

[0002] For example, in the case of automobile interior materials, some have a seam pattern applied to the surface by sewing or the like to improve the design (for example, Patent Document 1). In this case, the interior material is formed by separately producing a base material and a skin material with a seam pattern, and fixing the skin material to the surface of the base material. Fig. 9 shows a part of the interior material 40 in which an outstitch 48, which is a stitching pattern, appears along the corner 41. Fig. 10 shows an enlarged cross section perpendicular to the corner 41. The interior material 40 is composed of a base material 42 having an inner corner 43 aligned with the corner 41, and a skin material 44 fixed to the surface of the base material 42. The skin material 44 is divided into a lower skin 45 and an upper skin 46, and the folded end 47 of the upper skin 46 is overlapped on the upper end of the lower skin 45 and sewn together with outstitches 48 and institches 49. A matching groove 50 is formed on the surface of the inner corner 43 to position the sewn parts of the lower skin 45 and the upper skin 46. Therefore, when fixing the skin material 44, adhesive is applied to the alignment groove 50 and the inner surface of the upper end portion of the lower skin 45, and the outstitches 48 are visually aligned and fixed to the alignment groove 50. Thereafter, the outer periphery of the skin material 44 is folded back and bonded to the back side of the base material 42, thereby obtaining the interior material 40 in which the skin material 44 is fixed to the base material 42. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4933260 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned conventional covering material 44, the outstitches 48 are aligned with the mating grooves 50 by visual inspection before being bonded, so that it is difficult to position the outstitches 48. If the outstitches 48 shift or meander, they must be re-bonded, which takes time for the fixing work.

[0005] The present disclosure provides a covering material that allows stitch patterns, such as outstitches, applied to a design surface to be easily positioned relative to a base material and has excellent workability in fixing the covering material to the base material. of The purpose is to provide. [Means for solving the problem]

[0006] In order to achieve the above object, a first configuration of the present disclosure is a skin material formed of a resin material, a front surface being a design surface and a back surface being a fixing surface, the fixing surface being fixed to a base material, A predetermined stitch pattern is formed on the design surface, The fixed surface has a stitch pattern. At predetermined intervals in a predetermined first direction Convex or concave part multiple Formed At the same time, a protruding protrusion or a protruding recess is provided on a side surface of each of the protruding portions or each of the recessed portions, the protruding protrusion or the protruding recess protruding in a second direction intersecting with the first direction. And, The engaged portion formed on the base material each Convex or each The recesses can be engaged to fix the substrate. each The protrusion is integrally formed with the fixing surface, each The protrusion is characterized in that a retaining portion is formed at the tip thereof to prevent the protrusion from falling off from the engaged state with the engaged portion. In order to achieve the above object, a second configuration of the present disclosure is a skin material formed of a resin material, a front surface being a design surface and a back surface being a fixing surface, the fixing surface being fixed to a base material, A predetermined stitch pattern is formed on the design surface, The fixing surface is formed with a protrusion or recess extending in a predetermined first direction along the stitch pattern, and a side surface of the protrusion or recess is provided with a plurality of protruding protrusions or protruding recesses protruding in a second direction intersecting with the first direction at predetermined intervals in the first direction; The protrusion or recess can be engaged with an engaged portion formed on the base material to fix the base material to the base material. The protrusion is integrally formed with the fixing surface, and a retaining portion is formed at the tip of the protrusion to prevent the protrusion from falling off from the engaged state with the engaged portion. It is characterized by: In order to achieve the above object, a third configuration of the present disclosure is a skin material formed of a resin material, a front surface being a design surface and a back surface being a fixing surface, the fixing surface being fixed to a base material, A predetermined stitch pattern is formed on the design surface, The fixing surface has protrusions or recesses formed along the stitch pattern, and the protrusions or recesses include first protrusions or first recesses and second protrusions or second recesses that are continuously and alternately arranged in a predetermined first direction along the stitch pattern, and the first protrusions or first recesses and the second protrusions or second recesses have different widths in a second direction perpendicular to the first direction, The protrusion or recess can be engaged with an engaged portion formed on the base material to fix the base material to the base material. The protrusion is integrally formed with the fixing surface, and a retaining portion is formed at the tip of the protrusion to prevent the protrusion from falling off from the engaged state with the engaged portion. It is characterized by: In order to achieve the above object, a fourth configuration of the present disclosure is a skin material formed of a resin material, a front surface being a design surface and a back surface being a fixing surface, the fixing surface being fixed to a base material, A predetermined stitch pattern is formed on the design surface, On the fixing surface, protrusions or recesses are formed along the stitch pattern, and the protrusions or recesses include first protrusions or first recesses and second protrusions or second recesses that are alternately arranged at predetermined intervals in a predetermined first direction along the stitch pattern, and each first protrusion or each first recess and each second protrusion or each second recess are arranged apart from each other in a second direction perpendicular to the first direction, The protrusion or recess can be engaged with an engaged portion formed on the base material to fix the base material to the base material. The protrusion is integrally formed with the fixing surface, and a retaining portion is formed at the tip of the protrusion to prevent the protrusion from falling off from the engaged state with the engaged portion. It is characterized by: No. 4 Another aspect of the configuration is characterized in that, in the above configuration, 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. No. 4 Another aspect of the 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 have mutually different widths in the second direction. each In another aspect of the present invention, the stitch pattern is formed by sewing in the above-mentioned configuration. each In another aspect of the present invention, in the above-mentioned configuration, a sewing guide line is formed on the design surface and is arranged parallel to the convex portion or the concave portion. each In another aspect of the present invention, in the above-mentioned configuration, the stitch pattern is formed by embossing. Effect of the Invention

[0008] According to the present disclosure, the stitch pattern can be easily positioned in the appropriate position relative to the base material by simply engaging the convex or concave portion with the engaged portion without visually checking the stitch pattern. This results in excellent workability in fixing the stitch pattern to the base material. In addition, since no adhesive is required in the stitch pattern area, the number of steps required for manufacturing the interior material is reduced, and the skin material and base material can be easily separated when discarding the product. especially Since the protrusions or recesses are arranged at predetermined intervals in the first direction, the stitch pattern is positioned at several points, preventing the stitch pattern from shifting out of position. Also, the integrity of the skin material and the base material is improved. on the other handThe convex portion or concave portion may have a protruding convex portion or protruding concave portion, the first convex portion or first concave portion and the second convex portion or second concave portion may be provided with different widths in the second direction, or a plurality of first convex portions or first concave portions and a plurality of second convex portions or second concave portions may be arranged at a distance in the second direction, thereby effectively preventing displacement of the skin material and further improving the integrity of the skin material when engaged with the substrate. each According to another aspect of the configuration, in addition to the above-mentioned effects, a highly aesthetically pleasing design surface can be obtained by forming a stitch pattern by sewing. each According to another aspect of the configuration, in addition to the above effects, sewing guide lines are formed on the design surface that are arranged parallel to the convex or concave portions, thereby serving as a guide for the sewing position and making it easier to apply the stitch pattern. each According to another aspect of the configuration, in addition to the above-mentioned effects, the stitch pattern is formed by embossing, so that the stitch pattern can be easily formed. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a perspective view showing a part of the interior material. [Diagram 2] 1 is an enlarged view of a cross section perpendicular to a corner of an interior material. FIG. [Diagram 3] FIG. 1 is an explanatory diagram of the skin material, (A) being a side view seen from the direction D2, and (B) being an enlarged cross-sectional view taken along the line AA. [Figure 4] FIG. 2 is a perspective view showing a portion of a base material. [Diagram 5] 13A and 13B are explanatory diagrams showing modified examples of the convex portion. [Figure 6] 13A and 13B are explanatory diagrams showing modified examples of the convex portion. [Figure 7] 13A and 13B are explanatory diagrams showing modified examples of the convex portion. [Figure 8] 13A and 13B are explanatory diagrams showing modified examples of the convex portion. [Figure 9] FIG. 1 is a perspective view showing a portion of a conventional interior material. [Figure 10] FIG. 1 is an enlarged view showing a cross section perpendicular to a corner of a conventional interior material. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. Fig. 1, like Fig. 9, shows a part of an interior material 1 for an automobile in which an outstitch 22 appears along a corner 2. Fig. 2 shows an enlarged cross section perpendicular to the corner 2. The interior material 1 is composed of a base material 10 and a skin material 20 fixed to the surface of the base material 10. The skin material 20 is made by injection molding (e.g., RIM molding) from a resin material such as urethane, and is in the form of a sheet with a design surface 20a on the front side and a fixing surface 20b on the back side. On the design surface 20a, at a position corresponding to the corner 2, a groove-shaped sewing guide line 21 is formed linearly in the direction D1 in which the corner 2 extends. At the bottom of the sewing guide line 21, an outstitch 22 is provided parallel to the direction D1. The outstitch 22 is provided on the sewing guide line 21 after the skin material 20 is injection molded.

[0011] As shown in Fig. 3, a plurality of protrusions 23, 23... are formed to protrude from the fixing surface 20b of the skin material 20. The protrusions 23 are arranged linearly in the direction D1 at a predetermined interval. The arrangement position is slightly offset from the outstitch 22. Each protrusion 23 has a rectangular shape in a plan view, with the length in the D1 direction being greater than the length (width) in the D2 direction perpendicular to the D1 direction in the surface direction of the skin material 20 in a flat state as shown in Fig. 3. A round bar-shaped retaining portion 24, which is wider than the base side, is integrally formed at the protruding end of each protrusion 23.

[0012] The base material 10 is made of a resin material such as PP or ABS by injection molding, and has an inner corner 11 that matches the corner 2, as shown in Fig. 4. The inner corner 11 has a plurality of holes 12, 12... formed therein, the number of which is the same as the number of protrusions 23 of the skin material 20. The holes 12 penetrate the base material 10 in the thickness direction, and are arranged linearly in the direction D1 at intervals the same as the intervals between the protrusions 23 of the skin material 20. Each hole 12 is formed slightly larger than the length and width of the protrusion 23 excluding the retaining portion 24 , and slightly smaller than the width of the retaining portion 24 .

[0013] When the skin 20 produced as described above is fixed to the substrate 10, the protrusions 23 of the skin 20 are inserted in order into the holes 12 of the substrate 10, as shown in Fig. 2. Then, the retaining portions 24 elastically deform the holes 12 to allow the protrusions 23 to pass through, and the retaining portions 24 protrude from the rear surface of the substrate 10. Thus, when all the protrusions 23 are inserted into the holes 12, the skin 20 is fixed by the engagement between the protrusions 23 and the holes 12. In this fixed state, the outstitches 22 appear linearly in the direction D1 without meandering. Then, the outer periphery of the skin material 20 is folded back at the end of the base material 10 and adhered to the base material 10, whereby the interior material 1 in which the skin material 20 is fixed to the surface of the base material 10 is obtained.

[0014] In this manner, the skin material 20 in the above-described form has an outstitch 22 (an example of a stitch pattern) formed on the design surface 20a, while a plurality of protrusions 23 are formed along the outstitch 22 on the fixing surface 20b, and can be fixed to the base material 10 by engaging the protrusions 23 with holes 12 (an example of an engaged portion) formed in the base material 10. With this configuration, the outstitch 22 can be easily positioned in the correct position relative to the base material 10 simply by engaging the protrusion 23 with the hole 12, without visually checking the outstitch 22. This results in excellent workability in fixing the outstitch to the base material 10. Furthermore, since no adhesive is required in the area of ​​the outstitch 22, the number of steps required for manufacturing the interior material 1 is reduced, and the skin material 20 and the base material 10 can be easily separated when disposing of the outstitch 22, for example.

[0015] The protrusions 23 are arranged at predetermined intervals in the D1 direction (an example of a first direction). Therefore, the outstitches 22 are positioned at several points, which prevents the outstitches 22 from shifting from their original position. Furthermore, the integrity of the skin material 20 and the base material 10 is improved. The stitching pattern is formed by outstitches 22 . Therefore, a highly aesthetically pleasing design surface 20a can be obtained. A sewing guide line 21 that is arranged parallel to the protrusion 23 is formed on the design surface 20a. This serves as a guide for the position of the outstitch 22, making it easier to apply the outstitch 22.

[0016] In this manner, the interior material 1 of the above form is composed of a skin material 20 formed from a resin material and having a design surface 20a on its front side and a fixing surface 20b on its back side, and a base material 10 to which the fixing surface 20b of the skin material 20 is fixed, with an outstitch 22 formed on the design surface 20a of the skin material 20 and a protrusion 23 formed along the outstitch 22 on the fixing surface 20b, while a hole 12 with which the protrusion 23 can engage is formed in the base material 10, and the skin material 20 is fixed to the base material 10 by engaging the protrusion 23 with the hole 12. Furthermore, the manufacturing method for interior material 1 of the above-described form carries out the steps of forming outstitches 22 on design surface 20a of skin material 20 and forming convex portions 23 along outstitches 22 on fixing surface 20b, forming holes 12 in base material 10 with which convex portions 23 can engage, and fixing skin material 20 to base material 10 by engaging convex portions 23 with holes 12.

[0017] In this interior material 1 and its manufacturing method as well, the outstitch 22 can be easily positioned in the correct position relative to the base material 10 simply by engaging the protrusion 23 with the hole 12, without visually checking the outstitch 22. This results in excellent workability in fixing the skin material 20 to the base material 10. Furthermore, since no adhesive is required in the area of ​​the outstitch 22, the number of steps required for manufacturing the interior material 1 is reduced, and the skin material 20 and the base material 10 can be easily separated when discarding, etc.

[0018] Modifications of the present disclosure will be described below. The shape of the protrusions provided on the skin material can be changed as appropriate to other shapes than those described above. The retaining portion is not limited to a round bar shape as in the above-mentioned embodiment, and may be an arrowhead shape with a barb, etc. However, the retaining portion does not have to be provided. The length of the protrusion in the D1 direction may be made shorter or longer than that of the above embodiment. The length of the protrusion from the fixing surface may be longer than that of the above embodiment. The convex portion is not limited to a rectangular shape in plan view as in the above embodiment, but may have other shapes in plan view, such as a circular shape or a cross shape in plan view. The engaged portion provided on the base material is formed to match the protrusion. The engaged portion is not limited to the hole portion as described above, and may be a recess portion.

[0019] Specific examples of modifications of the convex portion are listed below. Although not specifically described, when the shape of the convex portion is changed, the hole portion (or the concave portion) provided in the base material is also shaped so that the convex portion of the modified example can be engaged therewith. Fig. 5 shows an example in which a protruding protrusion 25 protruding in the D2 direction is integrally formed on the side surface of the protrusion 23 to form a T-shape in plan view. Therefore, each hole 12 of the base material 10 also forms a T-shape in plan view by connecting the protruding hole 13 corresponding to the protruding protrusion 25. Fig. 5 shows an enlarged cross section in the surface direction of the base material 10 at a portion where each protrusion 23 and the protruding protrusion 25 are engaged with each hole 12 and the protruding hole 13, respectively. The same applies to the following modified examples. In this manner, by providing the protruding protrusion 25 on the protrusion 23, which protrudes in the D2 direction (an example of the second direction) perpendicular to the D1 direction, the positional displacement of the skin material 20 is effectively prevented, and the integrity of the skin material 20 and the base material 10 in the engaged state is further improved. The protruding direction of the protruding convex portion 25 is not limited to the orthogonal D2 direction as long as it is a direction intersecting the D1 direction, but may be a direction inclined with respect to the D1 direction. This is similar to other modified examples that include the protruding convex portion 25. The protruding direction of the protruding convex portion 25 may be reversed to that in the example of FIG. 5, or the protruding convex portions 23 may be alternately protruding.

[0020] 6 shows an example in which the convex portion is a plate-like convex portion 30 that extends longer in the D1 direction than the above embodiment. On the side surface of this plate-like convex portion 30, protruding convex portions 25 similar to those in FIG. 5 are integrally formed at multiple positions at predetermined intervals in the D1 direction. In this way, even if the convex portion is a plate-shaped convex portion 30 extending in the D1 direction and is provided with a plurality of protruding convex portions 25 that protrude in the D2 direction perpendicular to the D1 direction at a predetermined interval in the D1 direction, the positional displacement of the skin material 20 is effectively prevented, and the integrity of the skin material 20 and the substrate 10 in the engaged state is further improved. 6, the protruding direction of the protruding convex portions 25 may be reversed. Also, the protruding convex portions 25 may be arranged to protrude in a staggered manner with the plate-like convex portion 30 sandwiched therebetween.

[0021] FIG. 7 shows an example in which the convex portion is a plate-shaped convex portion 30A extending in the D1 direction, and the plate-shaped convex portion 30A has a shape in which a plurality of first convex portions 31 and a plurality of second convex portions 32, each having a different width in the D2 direction, are alternately arranged in a continuous manner. In this manner, even when the convex portion is configured as a plate-shaped convex portion 30A including the first convex portion 31 and the second convex portion 32 arranged continuously and alternately in the D1 direction and the widths of the first convex portion 31 and the second convex portion 32 in the D2 direction are made different, the positional displacement of the skin material 20 is effectively prevented and the integrity of the skin material 20 and the substrate 10 in the engaged state is further improved. 7, the first convex portion 31 and the second convex portion 32 are arranged so that the centers of the widths in the D2 direction are aligned on a straight line in the D1 direction, but the first convex portion 31 and the second convex portion 32 may be arranged so that their centers are offset from each other. The offset of the centers may be alternate or random.

[0022] FIG. 8 shows an example in which the first convex portion 31 and the second convex portion 32 have the same shape, are separated in the D1 direction, and are arranged so as to be alternately shifted in the D2 direction. In this way, even if the convex portion includes the first convex portion 31 and the second convex portion 32 arranged alternately at a predetermined interval in the D1 direction and the first convex portion 31 and the second convex portion 32 are arranged at a distance in the D2 direction, displacement of the skin material 20 is effectively prevented and the integrity of the skin material 20 and the substrate 10 in the engaged state is further improved. The widths of the first protrusion 31 and the second protrusion 32 in the direction D2 may be different from each other as shown in FIG.

[0023] In the above-described embodiment and each modified example, a convex portion is formed in the skin material and a hole or a concave portion is formed in the base material, but this may be reversed, with a convex portion provided on the surface of the base material and a concave portion formed on the fixing surface of the skin material with which the convex portion engages. In the above embodiment and each modified example, the form of the outstitch can be changed as appropriate. However, the stitch pattern is not limited to sewing such as the outstitch. The stitch pattern may be formed by, for example, embossing (embossing processing) or may be printed on the design surface. In either case, the stitch pattern can be easily formed at the same time as the skin material is formed. The stitch pattern may have multiple lines. The sewing guide lines are not limited to the groove-like shape as described above, and may be linear. The sewing guide lines may be eliminated. The shapes of the skin material and the base material may also be changed as appropriate. The present disclosure may also be applied to interior materials in which stitching or other seam patterns appear not only on corners but also on flat surfaces. [Explanation of symbols]

[0024] 1 interior material, 2 corner, 10 base material, 11 inner corner, 12 hole, 13 protruding hole, 20 skin material, 20a design surface, 20b fixing surface, 21 sewing guide line, 22 outstitch, 23 convex portion, 24 anti-slip portion, 25 protruding convex portion, 30, 30A plate-shaped convex portion, 31 first convex portion, 32 second convex portion.

Claims

1. A skin material formed of a resin material, the front surface being a design surface and the back surface being a fixing surface, the fixing surface being fixed to a base material, A predetermined stitch pattern is formed on the design surface, a plurality of convex portions or concave portions are formed at predetermined intervals in a predetermined first direction along the stitch pattern on the fixing surface, and a protruding convex portion or a protruding concave portion is provided on a side surface of each of the convex portions or each of the concave portions, the protruding convex portion or the protruding concave portion protruding in a second direction intersecting with the first direction, The convex portion or the concave portion can be fixed to the base material by engaging with an engaged portion formed on the base material, a cover material, characterized in that each of the protrusions is integrally formed with the fixing surface, and a slip-out prevention portion is formed at the tip of each of the protrusions to prevent the protrusions from falling out of the engaged state with the engaged portion.

2. A skin material formed from a resin material, the front surface being a design surface and the back surface being a fixing surface, the fixing surface being fixed to a substrate, A predetermined stitch pattern is formed on the design surface, a protrusion or recess extending in a predetermined first direction along the stitch pattern is formed on the fixing surface, and a plurality of protruding protrusions or protruding recesses are provided on a side surface of the protrusion or recess at predetermined intervals in the first direction and protruding in a second direction intersecting the first direction; The convex portion or the concave portion can be engaged with an engaged portion formed on the base material, and the base material can be fixed to the convex portion or the concave portion by engaging the engaged portion, The protrusion is integrally formed on the fixing surface, and a slip-out prevention portion is formed at the tip of the protrusion to prevent the protrusion from falling off from the engaged state with the engaged portion.

3. A skin material formed from a resin material, the front surface being a design surface and the back surface being a fixing surface, the fixing surface being fixed to a substrate, A predetermined stitch pattern is formed on the design surface, a protrusion or a recess is formed on the fixing surface along the stitch pattern, and the protrusion or recess includes a first protrusion or a first recess and a second protrusion or a second recess that are continuously and alternately arranged in a predetermined first direction along the stitch pattern, and the first protrusion or the first recess and the second protrusion or the second recess have different widths in a second direction perpendicular to the first direction; The convex portion or the concave portion can be engaged with an engaged portion formed on the base material, and the base material can be fixed to the convex portion or the concave portion by engaging the engaged portion, The protrusion is integrally formed on the fixing surface, and a slip-out prevention portion is formed at the tip of the protrusion to prevent the protrusion from falling off from the engaged state with the engaged portion.

4. A skin material formed from a resin material, the front surface being a design surface and the back surface being a fixing surface, the fixing surface being fixed to a substrate, A predetermined stitch pattern is formed on the design surface, a protrusion or a recess is formed on the fixing surface along the stitch pattern, and the protrusion or recess includes a first protrusion or a first recess and a second protrusion or a second recess that are alternately arranged at a predetermined interval in a predetermined first direction along the stitch pattern, and each of the first protrusions or each of the first recesses and each of the second protrusions or each of the second recesses are arranged at a distance from each other in a second direction perpendicular to the first direction, The convex portion or the concave portion can be engaged with an engaged portion formed on the base material, and the base material can be fixed to the convex portion or the concave portion by engaging the engaged portion, The protrusion is integrally formed on the fixing surface, and a slip-out prevention portion is formed at the tip of the protrusion to prevent the protrusion from falling off from the engaged state with the engaged portion.

5. 5. The skin material according to claim 4, wherein each of the first projections or each of the first recesses and each of the second projections or each of the second recesses have the same shape.

6. 5. The skin material according to claim 4, wherein each of the first projections or each of the first recesses and each of the second projections or each of the second recesses have a width in the second direction that is different from each other.

7. 5. The skin material according to claim 1, wherein the stitch pattern is formed by sewing.

8. 8. The skin material according to claim 7, wherein a sewing guide line is formed on the design surface and is arranged parallel to the convex portion or the concave portion.

9. 5. The skin material according to claim 1, wherein the stitch pattern is formed by embossing.

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