Vehicle interior materials

Abstract

To provide an interior material for vehicle which ensures good appearance with a part of a skin body folded into a recess of a base material to an end esge part.SOLUTION: An interior material 1 for vehicle comprises: a base material 2 having a recess 20 continued to an end edge part on a front side; and a skin body 3 which covers at least a part of the front side of the base material 2 in the state that a part thereof is folded into the recess 20, and of which an outer edge part is folded back from the end edge part and is bonded to a rear side of the base material 2. A width of the recess 20 is so set as to be narrower with respect to other positions.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a vehicle interior material having a skin covering at least a portion of the front side of a substrate. [Background technology]

[0002] Conventionally, interior materials that cover the interior of a vehicle such as an automobile include a skin body made of leather, synthetic resin, or the like to impart a luxurious feel to the interior material. One such interior material is known in which the side edges of a pair of skin pieces that make up the skin body are folded back and sewn together, and these folded portions are overlapped on the backside of the skin pieces and further decoratively sewn. In this configuration, since the folded portions are positioned overlapping the backside of the skin pieces, a recess is formed on the surface of the base material to accommodate the folded portions positioned on the backside (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2008-162343 A (pages 4-7, Figure 2) Summary of the Invention [Problem to be solved by the invention]

[0004] The dimensions of the recess are not exactly the same as those of the folded portion, but are larger than those of the folded portion, taking into account variations in the shape of the folded portion, etc. On the surface of the base material, even if there is a slight difference in size between the folded portion and the recess, this is unlikely to affect the appearance, but when a skin piece is folded back and attached to the back side of the base material at the edge of the base material, it is necessary to pull the skin piece when attaching it so that it does not become loose.

[0005] In this case, the skin piece is stretched and thinned due to the application of a tensile force to the edge of the base material, and this may enter into the gap caused by the dimensional difference between the recess and the skin piece, causing a dent in the surface of the skin piece and damaging the appearance.

[0006] The present invention has been made in consideration of the above points, and has as its object to provide a vehicle interior material in which a part of the skin body is folded into a recess in the base material, thereby ensuring a good appearance up to the edge portion. [Means for solving the problem]

[0007] The vehicle interior material according to claim 1 comprises a substrate having a recess on its front side that is continuous with an edge portion, and a skin body that covers at least a part of the front side of the substrate in a state where a part of the skin body is folded into the recess and that has an outer edge that is folded back from the edge portion to the back side of the substrate, and the recess is The base member has a pair of sidewall portions formed along a predetermined first direction, recessed in a thickness direction of the base member, and spaced apart from each other in a second direction perpendicular to the first direction and the thickness direction, of the edge Top By position Other than the top than the position of Between the side walls The width is set to be narrow.

[0008] The vehicle interior material according to claim 2 is the vehicle interior material according to claim 1, wherein the skin body has a plurality of skin pieces, and is formed by joining the side edges of these skin pieces together, and the side edges of these joined skin pieces are folded into the recesses.

[0009] The vehicle interior material described in claim 3 is the vehicle interior material described in claim 2, in which the side edges of the joined skin pieces are folded back to the back side of each of the skin pieces and stored in the recess. [Effects of the Invention]

[0010] According to the vehicle interior material of claim 1, even if the skin folded back to the rear side of the base material is pulled at the edge of the base material and becomes thin, the recessed portion is not formed at this position. Between the side walls but In the second direction The narrowed recess Side wall ofThe skin body is prevented from entering the gap resulting from the difference in size between the base material and the folded-in part of the skin body, and no depression in appearance due to the skin body entering the gap occurs at the edge part, so that a good appearance in which a part of the skin body is folded into the recess of the base material can be ensured up to the edge part.

[0011] According to the vehicle interior material of claim 2, in addition to the effects of the vehicle interior material of claim 1, it is possible to construct a vehicle interior material with excellent design, which has a design with seams of multiple skin pieces along the position of the recessed part of the base material.

[0012] According to the vehicle interior material of claim 3, in addition to the effect of the vehicle interior material of claim 2, it is possible to present an appearance with excellent design, in which the skin pieces are wrapped around each other at the side edge positions. [Brief explanation of the drawings]

[0013] [Figure 1] 3(a) is a cross-sectional view of a position corresponding to II in FIG. 3(b) showing a vehicle interior material according to a first embodiment of the present invention, and FIG. 3(b) is a view taken along arrow A in FIG. 3(a) showing a part of the base material of the vehicle interior material. [Figure 2] 3(b) is a view taken along an arrow B in FIG. 3(b) showing a part of the same vehicle interior material. [Figure 3] FIG. 2(a) is a perspective view showing a base material of the same vehicle interior material, and FIG. 2(b) is a perspective view showing the same vehicle interior material. [Figure 4] FIG. 3 is a cross-sectional view showing a portion of a vehicle interior material of a comparative example. [Figure 5] FIG. 4 is a cross-sectional view showing a part of a vehicle interior material according to a second embodiment of the present invention. [Figure 6] FIG. 10 is a cross-sectional view showing a part of a vehicle interior material according to a third embodiment of the present invention. [Figure 7] FIG. 10 is a cross-sectional view showing a part of a vehicle interior material according to a fourth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0014] A first embodiment of the present invention will be described below with reference to the drawings.

[0015] In FIG. 3(b), 1 denotes a vehicle interior material. In this embodiment, the vehicle interior material 1 is used for the interior of a vehicle such as an automobile. In the illustrated example, the vehicle interior material 1 is formed in a rectangular shape elongated in a predetermined direction, but is not limited to this and may have any shape depending on the shape of the placement position, the desired design, etc. In this embodiment, the longitudinal direction of the vehicle interior material 1 will be described as a first direction (indicated by arrow X), the width direction which is perpendicular to the longitudinal direction will be described as a second direction (indicated by arrow Y), and the thickness direction which is perpendicular to the first direction will be described as a third direction (indicated by arrow Z).

[0016] As shown in Fig. 1(a), the vehicle interior material 1 is configured by stacking a base material 2 and a skin body 3. A separate member such as an elastic material (cushioning material) may be disposed at least partially between the base material 2 and the skin body 3. The skin body 3 side of the vehicle interior material 1 is disposed as the occupant side, front side, obverse side, or design side, and the base material 2 side is disposed as the vehicle body side, anti-occupant side, rear side, or reverse side.

[0017] The substrate 2 shown in FIGS. 1(b) and 3(a) is molded from a material such as synthetic resin. In this embodiment, the substrate 2 integrally includes a substrate main body portion 5 and an extension portion 6 extending from the substrate main body portion 5 in a third direction. The substrate main body portion 5 is formed in a rectangular shape with its longitudinal direction in the first direction and its transverse direction in the second direction. In this embodiment, the extension portion 6 is continuous with both side and end portions of the substrate main body portion 5, i.e., the end portions in the second direction and the end portions in the first direction. The extension portion 6 is formed to surround the substrate main body portion 5. The extension portion 6 includes side extension portions 7 continuous with both side portions of the substrate main body portion 5, i.e., in the second direction, and end extension portions 8 continuous with both end portions of the substrate main body portion 5, i.e., in the first direction. The end extension portions 8 are continuous with both end portions of the side extension portions 7, 7 in the first direction.

[0018] At least a portion of the front side of the substrate 2 is covered with a skin 3 shown in Figures 1(a) and 3(b). In this embodiment, the entire surface of the substrate main body 5 and the surface of the extension 6 of the substrate 2 are covered with the skin 3.

[0019] The skin body 3 is in a sheet shape. In this embodiment, the skin body 3 is integrally formed by joining a plurality of skin pieces 12. In the illustrated example, a pair of skin pieces 12 is provided. The skin pieces 12 are formed in a sheet shape from any material such as natural leather, artificial leather, or resin. The skin pieces 12 may also be made of a composite material formed by overlapping a plurality of sheets made of different materials into an integral body.

[0020] In this embodiment, the skin pieces 12 are set on one side and the other side of the base material 2 in the second direction, and are arranged so that their side edges are joined together to cover the entire front side of the base material 2. The back surface of the skin piece 12 forming the back surface of the skin body 3 is bonded to the base material 2, for example, with an adhesive.

[0021] The skin piece 12 integrally comprises a skin piece main body 14 that covers the front side of the base material 2 and constitutes the design part of the vehicle interior material 1, and a fold-in part 15 that is continuous with the skin piece main body 14 and is folded to the back side of the skin piece main body 14.

[0022] The skin piece main body 14 constitutes the majority of the skin piece 12. The skin piece main body 14 is formed into any shape according to the shapes of the base material main body 5 and the extension 6 of the base material 2. The outer edge portion, i.e., the edge portion, of the skin piece main body 14 is folded back to the back side of the base material 2 and attached and fixed to the back side of the base material 2.

[0023] The fold-in portions 15 are located in a position that cannot be seen from the outside. The fold-in portions 15 are continuous with the side edges of the main body portion 14 of the skin piece and are folded relative to the main body portion 14. The skin pieces 12 are joined to each other at the fold-in portions 15. The fold-in portions 15 are joined to each other by joint portions 17. In this embodiment, the joint portions 17 are formed by sewing. The joint portions 17 are located between the side edges of the main body portions 14, 14 of adjacent skin pieces 12, 12 and are substantially invisible from the front side.

[0024] In the illustrated example, the fold-in portion 15 is a folded portion that is folded back to the rear side of the skin piece main body portion 14 and overlapped on the rear surface. The fold-in portion 15 is formed in a rectangular shape having a predetermined width in the second direction that is narrower than that of the skin piece main body portion 14. In this embodiment, the fold-in portion 15 has a rectangular shape that is elongated in the first direction.

[0025] The fold-in portion 15 is accommodated in a recess 20 formed on the front side of the substrate 2. In this embodiment, the recess 20 has sidewalls 20a, 20a spaced apart in the second direction and a bottom 20b connecting the sidewalls 20a, 20a. As shown in FIG. 3(a), the recess 20 extends from the substrate main body 5 to the tip of the extension 6, i.e., the edge of the substrate 2. The recess 20 may be formed at any position and in any direction. In this embodiment, however, the recess 20 is formed linearly along the first direction at a position closer to one side of the substrate 2 in the second direction (the left side in FIG. 3(a)). In the illustrated example, the recess 20 extends from the substrate main body 5 to the end extensions 8, 8. Both ends of the recess 20 are open at the tip of the end extensions 8, 8. That is, the recess 20 has a general portion 22 formed at a position excluding the edge of the substrate 2 and an opening 23 formed at the edge of the substrate 2. The opening 23 is formed at the edge of the base material 2, at a top portion (wood edge) 24 that is the boundary between the front side and the back side of the base material 2.

[0026] 1(a), the depth D of the recess 20, i.e., the distance in the third direction from the surface of the substrate 2 to the bottom 20b of the recess 20, is set to be equal to or greater than the thickness of the fold-in portion 15. Therefore, when the fold-in portion 15 is housed in the recess 20, the front side of the skin piece 12 (skin body 3) is arranged to form a continuous plane without protruding near the fold-in portion 15.

[0027] 1(b), the width of recess 20, i.e., the distance in the second direction between side wall portions 20a, 20a, is set to width W1 in general portion 22, and is set to width W2 in at least one, in this embodiment, both, of openings 23. Widths W1 and W2 are each set to be equal to or greater than the width of fold-in portion 15. Therefore, side wall portion 20a of recess 20 is positioned away from fold-in portion 15 housed in recess 20 in the second direction.

[0028] In this embodiment, the width W1 is set to be larger than the width W2 (W1>W2). That is, the width of the recess 20 is set to be narrower at the edge of the substrate 2 than at other positions. Therefore, the recess 20 has raised portions 25, 25 formed at the positions where the sidewalls 20a, 20a and the bottom 20b join at the edge of the substrate 2, i.e., at the bottom corners of the recess 20. Each raised portion 25 is formed on the top 24 of the edge of the substrate 2. Each raised portion 25 extends in the second direction, i.e., the width direction relative to the sidewalls 20a in the general portion 22 of the recess 20. In the illustrated example, each raised portion 25 is formed flush or approximately flush with the top 24 of the edge of the substrate 2, but may be slightly lower than the top 24.

[0029] 1(a), side surface portion 25a located at the end of padding portion 25 in the second direction is formed perpendicular or approximately perpendicular to bottom portion 20b of recess 20. That is, side surface portion 25a is formed in a planar shape extending in the first and second directions and is located along the third direction. Therefore, the width of padding portion 25 in the second direction is constant or approximately constant throughout padding portion 25. In the illustrated example, side surface portion 25a is located opposite the folded-back tip of fold-in portion 15 of skin body 3 in the second direction.

[0030] Preferably, the tucked-in portion 15 is overlapped with the main body portion 14 of the skin piece and fixed together by decorative stitching. That is, a stitched portion 28 is formed in the tucked-in portion 15. The main body portion 14 of the skin piece and the tucked-in portion 15, which is folded over and overlapped on the back side of the main body portion 14 of the skin piece, are sewn together by the stitched portion 28. In this embodiment, the stitched portion 28 extends linearly in the first direction. While it is sufficient that the stitched portion 28 is formed in at least one of the skin pieces 12, in this embodiment, the stitched portion 28 is formed in each of the skin pieces 12. Therefore, as shown in FIG. 3(b), the stitched portions 28, 28 are positioned side by side on both sides of the joint portion of the skin pieces 12, 12, forming a so-called double stitch. In this embodiment, the stitched portions 28, 28 are positioned parallel or approximately parallel to each other.

[0031] Next, a method for manufacturing the vehicle interior material 1 of the first embodiment will be described.

[0032] First, the front sides of the pre-formed skin pieces 12, 12 are overlapped with each other, and the side edges of the skin pieces 12, 12 are joined at the joining section 17. In this embodiment, the joining section 17 is the primary stitching.

[0033] Thereafter, by opening the skin pieces 12, 12, the portions from the joined portion by the joining portion 17 toward the side edge portions become the folded portions 15, 15, and the remaining portions become the skin piece main portions 14, 14.

[0034] Next, with the fold-in portions 15, 15 overlapping the skin piece main body portions 14, 14, the fold-in portions 15, 15 and the skin piece main body portions 14, 14 are joined together at sewn portions 28, 28. In this embodiment, the sewn portions 28 are secondary stitched.

[0035] As a result, the skin pieces 12, 12 are adjacent to each other at the side edge positions in the second direction and spread out in a planar shape, and the skin body 3 is formed in which the stitched portions 28, 28 extend across the position where the skin pieces 12, 12 are joined.

[0036] This skin body 3 is then attached to the base material 2, which has been separately molded in advance, with an adhesive. The skin body 3 is attached so that its central portion covers the base material main body 5 of the base material 2 and its outer edge covers the extensions 6, while accommodating the fold-in portions 15, 15 in the recesses 20. The outer edge portions are pulled and stretched in the second and third directions along the surfaces of the side extensions 7 at the positions of the side extensions 7, and in the first and third directions along the surfaces of the end extensions 8 at the positions of the end extensions 8, so as to prevent slack in the base material 2, while being folded back at the positions of the apexes 24 of the respective end edges and attached to the back side of the base material 2.

[0037] At this time, in the case of a skin body 3 (skin piece 12) with particularly good stretchability, a tensile force is applied to the skin body 3 (skin piece 12), causing the skin body 3 (skin piece 12) to be stretched the most and become thinnest at the position of the apex 24. Therefore, when there is a slight gap G, which is the dimensional difference between the side wall portion 20a of the recess 20 and the tip of the fold-in portion 15 of the skin body 3 (skin piece 12), as in the vehicle interior material 1a of the comparative example shown in FIG. 4, the skin body 3 (skin piece 12) will enter this gap G at the position of the apex 24 and attempt to form a recess 30.

[0038] 1(a), the recess 20 is set to be narrower at the edge of the base material 2 than at other positions. Therefore, even if the skin body 3 folded back to the back side of the base material 2 is pulled and thinned at the edge of the base material 2, the recess 20 narrows at this position to form a padded portion 25, preventing the skin body 3 from entering the gap caused by the dimensional difference between the side wall portion 20a of the recess 20 and the folded-in portion 15 of the skin body 3. Therefore, regardless of the stretch rate of the skin body 3 or the amount of pulling force, no external depressions due to the skin body 3 entering the gap are generated at the edge. Therefore, a vehicle interior material 1 with excellent design can be provided in which a good appearance is maintained even at the edge, with part of the skin body 3 folded into the recess 20 of the base material 2.

[0039] In addition, since the skin body 3 is stretched thinly at the terminal portion of the base material 2, the thickness of the skin body 3 that is superimposed on the padded portion 25 is not large, and the skin body 3 does not appear to be extremely raised from the base material 2 only at the position corresponding to the padded portion 25.

[0040] In addition, by folding and arranging the joined side edges of the skin pieces 12 into the recesses 20 of the base material 2, it is possible to construct a vehicle interior material 1 with excellent design, which has a design with the seams of the multiple skin pieces 12 along the positions of the recesses 20 of the base material 2.

[0041] Furthermore, by storing the fold-in portion 15 in the recess 20 while being folded back to the back side of the skin piece 12, the skin pieces 12 are folded together at the side edge positions, resulting in an appearance with excellent design.

[0042] By providing stitching 28 along the fold-in portions 15 of the skin pieces 12 of the skin body 3, decorativeness can be improved by the stitching 28. In particular, in this embodiment, since each skin piece 12 has a fold-in portion 15, providing stitching 28 along these fold-in portions 15 results in double stitching, further improving decorativeness.

[0043] Next, a second embodiment will be described with reference to Fig. 4. Note that the same components and functions as those in the first embodiment will be denoted by the same reference numerals and the description thereof will be omitted.

[0044] In this embodiment, side surface 25a of buildup portion 25 is inclined with respect to a third direction that is a direction perpendicular to bottom 20b of recess 20. Side surface 25a is inclined toward bottom 20b so that the width of opening 23, i.e., the dimension in the second direction, gradually narrows.

[0045] With this configuration, even if the skin body 3 folded back onto the back side of the base material 2 is pulled and thinned at the edge of the base material 2, the narrow recess 20 at this position prevents the skin body 3 from entering the gap caused by the difference in size between the recess 20 and the folded-in portion 15 of the skin body 3, and no external depression due to the skin body 3 entering the gap is created at the edge, so that the same effects as in the first embodiment can be achieved, such as ensuring a good appearance with part of the skin body 3 folded into the recess 20 of the base material 2 all the way to the edge.

[0046] In addition, since the amount of penetration into the gaps in the skin body 3 varies depending on the expansion rate of the skin body 3, by inclining the side portions 25a of the padding portions 23 and setting them so that the width of the padding portions 23 changes, the amount of penetration into the gaps in the skin body 3 can be adjusted, and a good appearance can be maintained all the way to the edge portions regardless of the expansion rate of the skin body 3.

[0047] In the above-described embodiments, the fold-in portions 15 are folded back onto the back side of the skin piece main body 14. However, this is not limiting. For example, as in the third embodiment shown in FIG. 6, one fold-in portion 15 may be folded back and the other fold-in portion 15 may be placed on top of it and housed in the recess 20. Furthermore, as in the fourth embodiment shown in FIG. 7, the fold-in portions 15 may be placed in the recess 20 while oriented along the third direction, which is the thickness direction of the skin piece main body 14, i.e., folded at right angles to the skin piece main body 14. Even in these cases, by making the width of the recess 20 narrower at the edge positions than at other positions, it is possible to achieve the same effects as in the other embodiments, such as ensuring a good appearance in which part of the skin body 3 is folded into the recess 20 of the base material 2 up to the edge positions.

[0048] Furthermore, in each of the above embodiments, the skin body 3 is made up of a plurality of skin pieces 12, but this is not limiting and the skin body 3 may be made up of a single, integrated sheet.

[0049] Furthermore, even if the configuration does not include the stitched portion 28, the same effect can be achieved. [Industrial Applicability]

[0050] The present invention can be suitably used as an interior material for automobiles, for example. [Explanation of symbols]

[0051] 1. Vehicle interior materials 2 Base material 3 Epidermal body 12 Epidermal piece 20 recess 20a Side wall

Claims

1. a substrate having a recess on a front side thereof connected to an edge portion; a skin body that covers at least a part of the front side of the base material with a part of the skin body folded into the recess, and has an outer edge that is folded back from the edge portion to the back side of the base material and attached thereto; The recess is formed along a predetermined first direction, recessed in a thickness direction of the base material, and has a pair of side wall portions spaced apart from each other in a second direction perpendicular to the first direction and the thickness direction, and the width between the side wall portions is set narrower at the top of the edge portion than at positions other than the top. A vehicle interior material characterized by:

2. The skin body has a plurality of skin pieces, and is formed by joining the side edges of these skin pieces together, and the side edges of these joined skin pieces are folded into the recesses.

2. The vehicle interior material according to claim 1.

3. The side edges of the joined skin pieces are folded back onto the backsides of the respective skin pieces and accommodated in the recesses.

3. The vehicle interior material according to claim 2.

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