Vehicle interior materials

Abstract

To provide a vehicle interior material which prevents a skin body from lifting from a base material at a position of an end.SOLUTION: A vehicle interior material includes: a base material; and a skin body 3 which covers at least a part of the front side of the base material and is adhered to the base material. The skin body 3 includes a folded part 15 folded to the side of a rear surface 10b. The rear surface 10b is exposed to the base material side at a position of an end as seen in an extension direction of the folded part 15.SELECTED DRAWING: Figure 1

Description

Technical Field

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[0001] The present invention relates to an interior material for a vehicle including a skin body that covers at least a part of the front side of a base material and is adhered to the base material.

Background Art

[0002] Conventionally, in order to impart a high-class feeling to interior materials that cover the interior of vehicles such as automobiles, there are interior materials provided with skin bodies made of leather, synthetic resin, etc. In the skin body used for this interior material, as a sewing for improving decorativeness, so-called double stitch in which two sewing threads are arranged in parallel may be used. Further, in order to improve the texture, the side edges of the paired skin bodies are each folded back to the back side and the folded ends are joined to each other, and stitches are applied to the folded portions, respectively, so that a double stitch is positioned sandwiching the joined portion (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When attaching the skin body to the surface of the base material, an adhesive is applied to the back side of the skin body. However, in the configuration in which the side edge of the skin body is folded back as described above, the surface of the skin body is positioned on the back side of the skin body at the folded portion. The surface of the skin body is subjected to special processing to improve water resistance and abrasion resistance, and due to its nature, the affinity with the adhesive is lower than that of the unprocessed portion.

[0005] Therefore, if the folded portion, which is created by folding the side edge of the surface material back to the reverse side, extends to the end of the surface material, lifting may occur between the surface of the folded portion and the surface of the base material, where the adhesive does not function properly. This may cause the surface material to peel off or the double stitching to become distorted, potentially damaging the appearance.

[0006] The present invention has been made in view of these points, and aims to provide an interior material for vehicles in which the surface is less likely to lift away from the base material at the edges. [Means for solving the problem]

[0007] The vehicle interior material of the present invention comprises a base material and a surface material that covers at least a portion of the front surface of the base material and is adhered to the base material, wherein the surface material has a plurality of surface pieces, each of these surface pieces has a folded portion that is folded back to the back side, these folded portions are joined together, and notches are formed at the ends of each folded portion substantially symmetrically with respect to each other in a direction intersecting the extending direction of the folded portion, and the back surface of each surface piece is exposed to the base material side at the end of the surface material by the notches. The back surface of the surface piece is adhered to the substrate at the exposed position. It is something that exists. [Effects of the Invention]

[0008] This application According to the vehicle interior materials, Each epidermal piece is folded back to the back side End of the folded part The notches are exposed at positions that are approximately symmetrical to each other in a direction intersecting the extending direction of the folded portion. Back side in Since the epidermis can be adhered to the substrate, the epidermis is less likely to lift away from the substrate at the edges. 。 [Brief explanation of the drawing]

[0009] [Figure 1] This is a plan view showing the surface of the vehicle interior material according to the first embodiment of the present invention, as seen from the back side. [Figure 2] This is a plan view showing the epidermal fragments of the same epidermal body from the back side. [Figure 3] This is a plan view showing one step in the manufacturing process of the interior materials for the vehicle. [Figure 4](a) is a cross-sectional view at position II in (b), and (b) is a perspective view showing a part of the interior material for a vehicle. [Figure 5] This is a plan view showing the surface of a vehicle interior material according to a second embodiment of the present invention, viewed from the back side. [Figure 6] This is a plan view showing the epidermal fragments of the same epidermal body from the back side. [Figure 7] This is a plan view showing one step in the manufacturing process of the interior materials for the vehicle. [Modes for carrying out the invention]

[0010] Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

[0011] In Figures 4(a) and 4(b), 1 represents a vehicle interior material. In this embodiment, the vehicle interior material 1 is used, for example, as an interior material for a vehicle such as an automobile. In the illustrated example, the vehicle interior material 1 is formed in a rectangular shape with its length in a predetermined direction, but it is not limited to this, and may be any shape depending on the shape of the placement position and the desired design. In this embodiment, the longitudinal direction of the vehicle interior material 1 is described as the first direction (indicated by arrow X), the width direction which is perpendicular to it is the second direction (indicated by arrow Y), and the thickness direction which is perpendicular to them is the third direction (indicated by arrow Z).

[0012] The vehicle interior material 1 is constructed by overlapping a base material 2 and a surface material 3. At least a portion of the space between the base material 2 and the surface material 3 may contain a separate component such as an elastic material (cushioning material). The vehicle interior material 1 is arranged with the surface material 3 side facing the occupant, front, front, or design side, and the base material 2 side facing the vehicle body, the opposite occupant, rear, or back side.

[0013] The base material 2 is formed of a member such as a synthetic resin. In the present embodiment, the base material 2 integrally includes a base material main body portion 5 and an extension portion 6 extending from the base material main body portion 5 in the third direction. The base material main body portion 5 is formed in a rectangular shape having a longitudinal direction in the first direction and a lateral direction in the second direction. The extension portions 6 are respectively continuous with both side portions of the base material main body portion 5, that is, the end portions in the second direction. The extension portion 6 is longitudinally shaped in the first direction and is continuous over the entire side edge portion of the base material main body portion 5. The base material 2 has a U-shaped cross section by the base material main body portion 5 and the extension portions 6, 6.

[0014] At least a part of the front side of the base material 2 is covered by the skin body 3. In the present embodiment, the entire surface of the base material main body portion 5 and the surface of the extension portion 6 of the base material 2 are covered by the skin body 3.

[0015] The skin body 3 is in a sheet shape. In the present embodiment, the skin body 3 is integrally configured by joining a plurality of skin pieces 10. In the illustrated example, a pair of skin pieces 10 is set. The skin piece 10 is formed in a sheet shape from an arbitrary material such as natural leather, artificial leather, resin, etc. The skin piece 10 may be a composite material formed by overlapping a plurality of sheets of different materials.

[0016] In the present embodiment, the skin pieces 10 are respectively set on one side and the other side of the base material 2 in the second direction, and their side edges are joined together and arranged to cover the entire front side of the base material 2. Preferably, the skin piece 10 is subjected to special processing on the surface 10a which becomes the design surface forming the surface of the skin body 3 in order to improve water resistance and wear resistance. The back surface 10b of the skin piece 10 forming the back surface of the skin body 3 is bonded to the base material 2 with an adhesive. The back surface 10b is in a state or material having better adhesion to the adhesive than the surface 10a. In each figure, for clarity of explanation, the surface 10a of the skin piece 10 is shown shaded.

[0017] As shown in FIG. 2, the skin pieces 10, 10 have a shape that is symmetric or substantially symmetric with respect to each other in the second direction. Each skin piece 10 has a rectangular shape having edge portions 12, 12 that constitute the outer edge in the first direction and side edge portions 13, 13 that constitute the outer edge in the second direction. And as shown in FIG. 4(b), in the present embodiment, the skin piece 10 is aligned so that the edge portion 12 is flush or substantially flush with the edge portion of the base material 2 and is disposed on the front side of the base material 2.

[0018] FIG. 1 is a plan view of the skin pieces 10, 10 as viewed from the back surface 10b side, that is, from the base material 2 (FIG. 4(a)). As shown in FIG. 1, the skin pieces 10 are joined to each other in a state where a part of each is folded back to the back surface 10b side. In the present embodiment, at least one of the skin pieces 10, and in the illustrated example, each skin piece 10 has a folded-back portion 15 which is a seam allowance that is folded back and overlapped on one side edge portion 13 to the back surface 10b side. Therefore, the portion excluding the folded-back portion 15 is configured as a skin piece main body portion 16 which is the main body portion of the skin piece 10.

[0019] The skin piece main body portion 16 constitutes the majority of the skin piece 10. As shown in FIGS. 4(a) and 4(b), the skin piece main body portion 16 constitutes the design portion of the vehicle interior material 1. In the present embodiment, the skin piece main body portion 16 has a rectangular shape that is long in the first direction. As shown in FIGS. 4(a) and 4(b), the skin piece main body portion 16 covers a portion extending from the surface of the base material main body portion 5 of the base material 2 to the surface of the extension portion 6. The folded-back portions 15 are joined to each other by a joining portion 17 with the side edge portions 16a of the skin piece main body portion 16 adjacent to each other, and the skin pieces 10 are joined together. As shown in FIG. 3, the joining portion 17 is formed along the side edge portion 16a of the skin piece main body portion 16. In the present embodiment, the joining portion 17 is formed by sewing. As shown in FIG. 4(a), the joining portion 17 is located between adjacent side edge portions 16a, 16a and is a portion that is substantially invisible from the front side.

[0020] On the other hand, as shown in Figures 1 and 2, the folded portion 15 is formed in a strip shape that is narrower in the second direction (left-right direction in Figure 1) than the main body portion 16 of the surface piece. The folded portion 15 is a part that is basically not visible from the front side, i.e., the exterior, of the vehicle interior material 1 (Figure 4(a)). In this embodiment, the folded portion 15 has an elongated rectangular shape in the first direction (up-down direction in Figure 1). The folded portion 15 is formed to be shorter in length in the first direction than the main body portion 16 of the surface piece. In this embodiment, the folded portion 15 has an end portion 15a on at least one side (upper side in Figure 1) in the first direction, which is the direction in which the folded portion 15 extends, that is shorter on the other side (lower side in Figure 1) in the first direction relative to the main body portion 16 (edge ​​portion 12). In the illustrated example, the end portion 15a of the folded portion 15 extends linearly in the second direction (left-right direction in Figure 1), and is offset by a predetermined distance, for example about 10 mm, to the other side in the first direction (downward side in Figure 1) relative to the edge portion 12, which is the end of the epidermal piece body portion 16, so that the end portion 15a and the edge portion 12 are connected in a stepped manner. Therefore, a notch portion 18 is formed in the epidermal piece 10 at the position of the end portion 15a of the folded portion 15. In this embodiment, the notch portion 18 is formed in a rectangular shape, with its outer edge forming an L-shape with the side edge portion 16a of the epidermal piece body portion 16 and the end portion 15a of the folded portion 15. Because the end 15a of the folded portion 15 is shorter in the first direction (up and down direction in Figure 1) than the edge portion 12, which is the end of the epidermal piece main body portion 16, when the folded portion 15 is superimposed on the back surface of the epidermal piece main body portion 16, an exposed portion 19 is formed between the end 15a of the folded portion 15 and the edge portion 12, which is the end of the epidermal piece main body portion 16, exposing the back surface of the epidermal piece main body portion 16 (epidermal piece 10). In this embodiment, the exposed portion 19 is exposed at the position of the notch portion 18.

[0021] Preferably, a stitched portion 20 is formed on the surface body 3. The stitched portion 20 is used to decorate the surface body 3. The stitched portion 20 is formed along the folded portion 15 of the surface piece 10. That is, the stitched portion 20 extends linearly in the first direction (up and down direction in Figure 1). The stitched portion 20 only needs to be formed on at least one of the surface pieces 10, but in this embodiment, it is formed on each surface piece 10. Therefore, as shown in Figure 4(a), the stitched portions 20, 20 are positioned side by side on both sides of the side edges 16a, 16a, which are the joints of the surface pieces 10, 10, forming a so-called double stitch. In this embodiment, the stitched portions 20, 20 are positioned parallel or substantially parallel.

[0022] The sewn portion 20 is formed by sewing together the main body portion 16 of the skin piece and the folded portion 15 that is folded back and overlapped on the back side of the main body portion 16 of the skin piece. The end of the sewn portion 20 extends beyond the end 15a of the folded portion 15 and continues to the exposed portion 19 of the main body portion 16 of the skin piece. The end of the sewn portion 20 is also located near the edge portion 12 of the skin piece 10.

[0023] Next, a method for manufacturing the vehicle interior material 1 according to the first embodiment will be described.

[0024] First, as shown in Figure 2, multiple epidermal pieces 10 are prepared at the position of the side edge 13 which will become the folded portion 15, each having a shorter portion in the first direction (up and down direction in Figure 1) relative to the end edge 12 which will become the end of the epidermal piece body 16. For example, in the case of a pair of epidermal pieces 10, 10, they are symmetrical or nearly symmetrical with respect to each other in the second direction (left and right direction in Figure 2).

[0025] Next, as shown in Figure 3, the surfaces 10a of the epidermal pieces 10 are overlapped, and the folded portions 15 are joined together by the joining portion 17 at the position of the side edge 16a of the epidermal piece main body 16, which is the boundary between the folded portion 15 and the epidermal piece main body 16. In this embodiment, the joining portion 17 serves as the primary stitching.

[0026] Next, as shown in Figure 3, the outer layers 10, 10 are opened and the folded portions 15, 15 are placed on top of the main outer layer portions 16, 16, and the folded portions 15, 15 and the main outer layer portions 16, 16 are joined by the sewing portions 20, 20. In this embodiment, the sewing portion 20 is a secondary sewing.

[0027] As a result, the epidermal pieces 10, 10 spread out in a planar manner adjacent to each other at the positions of the lateral edges 16a, 16a in the second direction (left-right direction in Figure 1), and the epidermal body 3 is formed with the seams 20, 20 extending across the position where the epidermal pieces 10, 10 are joined together.

[0028] Then, as shown in Figure 4(a), this surface body 3 is bonded to a pre-formed base material 2 using an adhesive.

[0029] In this embodiment, the extended end portion 15a of the folded portion 15 that is folded back to the back side at the side edge of the surface body 3 is shorter than the edge portion 12, which is the edge portion of the surface piece main body portion 16. As a result, an exposed portion 19 is formed where the back surface 10b of the surface piece 10, which is the back surface of the surface body 3, is exposed. Therefore, the back surface 10b of the surface piece 10 can be bonded to the base material 2 at the position of this exposed portion 19. The back surface 10b of the surface piece 10 has not been subjected to any special processing and the adhesive can easily act on it, so the surface body 3 is less likely to lift away from the base material 2 at the end (edge ​​portion 12 of the surface piece 10), and a vehicle interior material 1 with excellent appearance quality can be provided.

[0030] By joining together multiple surface pieces 10, each having a folded portion 15 formed on at least one side, at their side edges to form a surface body 3, it is possible to construct a vehicle interior material 1 with excellent design, where the seams of the surface pieces 10 serve as a design feature. Furthermore, by constructing the surface body 3 with multiple surface pieces 10, it becomes easier to make the surface body 3 conform to the shape of the base material 2.

[0031] Furthermore, by forming a folded portion 15 on each of the epidermal pieces 10 and joining these folded portions 15 together to form the epidermal body 3, the epidermal pieces 10 are wrapped around each other at their side edges, resulting in an aesthetically pleasing appearance.

[0032] By having a stitched section 20 along the folded portion 15 of the surface piece 10 of the surface body 3, the decorative effect can be improved by the stitched section 20. In particular, in this embodiment, since each surface piece 10 has a folded portion 15, having a stitched section 20 along these folded portions 15 results in a double stitch, further improving the decorative effect.

[0033] Furthermore, because the surface layer 3 is less likely to lift away from the base material 2 at the edge portion 12, wrinkles are less likely to occur in the sewing line 20, further improving the appearance.

[0034] Next, a second embodiment will be described with reference to Figures 5 to 7. Note that components and operations similar to those in the first embodiment are denoted by the same reference numerals, and their descriptions are omitted.

[0035] In this embodiment, the folded portion 15 is set to gradually shorten in the first direction (up and down in Figure 5) relative to the edge portion 12, which is the end of the epidermal piece body portion 16, at the position of the end portion 15a toward the side edge portion 13. Therefore, the end portion 15a of the folded portion 15 is inclined with respect to the second direction (left and right in Figure 5). In the illustrated example, the end portion 15a is directly connected to the edge portion 12. As an example, the end portion 15a is straight. However, it is not limited to this, and the end portion 15a may be curved, bent, or otherwise.

[0036] Therefore, a notch 18 is formed in the epidermal piece 10 at the position of the end 15a of the folded portion 15. In this embodiment, the notch 18 is formed in the shape of a triangle (right triangle) with its outer edge becoming straight due to the inclined end 15a. Because the end 15a side of the folded portion 15 is shorter in the first direction than the edge portion 12, which is the end of the epidermal piece body portion 16, when the folded portion 15 is superimposed on the back surface of the epidermal piece body portion 16, an exposed portion 19 is formed between the end 15a of the folded portion 15 and the edge portion 12, which is the end of the epidermal piece body portion 16, exposing the back surface of the epidermal piece body portion 16 (epidermal piece 10). In this embodiment, the exposed portion 19 is exposed at the position of the notch 18.

[0037] In this way, by forming an exposed portion 19 at the position of the end 15a in the extending direction of the folded portion 15, where the back surface 10b of the surface piece 10 is exposed, the back surface 10b of the surface piece 10 can be adhered to the base material 2 at the position of the exposed portion 19, making it less likely for the surface body 3 to lift away from the base material 2 at the end (edge ​​portion 12 of the surface piece 10), and thus providing an interior material 1 for vehicles with excellent appearance quality, thus achieving the same effects as in the first embodiment.

[0038] In each of the above embodiments, the folded portion 15 may be formed on only one of the adjacent epidermal pieces 10.

[0039] Furthermore, the notches 18 may be formed at both ends of the folded portion 15. In other words, the notches 18 may be formed at any location where it is undesirable to lift the ends of the surface material 3 from the base material 2.

[0040] Furthermore, the shape of the notch 18 can be arbitrarily set as long as it is suitable for bonding the exposed portion 19 to the base material 2. 。 [Industrial applicability]

[0041] The present invention can be suitably used, for example, as an interior material for automobiles. [Explanation of symbols]

[0042] 1. Vehicle interior materials 2 Base material 3 Epidermal body 10 Epidermis piece 10b back side 15 Folded section 18 Notch 20 Sewing section

Claims

1. Substrate and This comprises a surface material that covers at least a portion of the surface of the substrate and is adhered to the substrate, The surface body has a plurality of surface pieces, each of which has a folded portion that is folded back on the back side, and these folded portions are joined together, and notches are formed at the ends of each folded portion substantially symmetrically with respect to the direction in which the folded portion extends, and the back surface of each surface piece is exposed to the substrate side at the end of the surface body by the notches, and the back surface of the surface piece is adhered to the substrate at the exposed position A vehicle interior material characterized by the following features.

2. The outer layer has a seam along the folded portion. The vehicle interior material according to claim 1, characterized by its features.

3. The surface of each epidermal piece is bonded to the flat surface of the base material, with the exposed back surface of the epidermal piece adhering to the flat surface of the base material at the position of the notch at the end of the folded portion of each epidermal piece. The vehicle interior material according to claim 1, characterized by its features.

4. The outer edge of the notch is inclined with respect to the direction of extension of the folded portion. The vehicle interior material according to claim 1, characterized by its features.

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