Substrate

Abstract

To provide a base material around which a skin material can be wound with good appearance at a position where a flange part is provided at an end of the base material.SOLUTION: A base material around which a skin material is wound includes a base portion extending in a first direction and a second direction intersecting the first direction, a flange portion provided at an end portion of the base portion in the first direction, extending in a third direction intersecting the first direction and the second direction, and having an attachment surface to which the skin material is attached, and a protruding portion provided at the end portion of the base portion and protruding in the first direction from the attachment surface.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present disclosure relates to a substrate onto which a skin material is wrapped. [Background technology]

[0002] Patent Documents 1 to 3 disclose interior components to be attached to a vehicle. The interior components include a resin base material and a skin material wrapped around the base material (see Patent Document 1, for example). Specifically, the base material has a front surface, a back surface, and an end surface connecting the front surface and the back surface. The skin material covers the entire front surface of the base material and is folded back at the end surface to partially cover the back surface. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-049797 [Patent Document 2] WO2018 / 142522 publication [Patent Document 3] Japanese Patent Application Publication No. 07-256799 Summary of the Invention [Problem to be solved by the invention]

[0004] For example, the skin material is attached to the surface of the substrate while being stretched all over, folded back at the end face of the substrate toward the back surface of the substrate, and then attached to the back surface of the substrate while being stretched along the back surface of the substrate. By applying an appropriate tension to the skin material, it can be attached to the substrate in an attractive manner.

[0005] A substrate used in an interior member may have a flange portion at an end of the substrate (for example, near an end face on the back surface of the substrate) for fastening to another interior member. The flange portion may prevent the covering material from being stretched along the back surface of the substrate, which may deteriorate the appearance of the covering material at the position where the flange portion is provided on the end of the substrate. The present disclosure provides a substrate that can be wrapped with a covering material in an attractive manner at the position where the flange portion is provided on the end of the substrate. [Means for solving the problem]

[0006] A substrate according to one embodiment of the present disclosure is a substrate onto which a skin material is wrapped, and includes: a base portion extending in a first direction and a second direction intersecting the first direction; a flange portion provided at an end of the base in the first direction, extending in a third direction intersecting the first direction and the second direction, and having an attachment surface to which the skin material is attached; and a protrusion provided at the end of the base, protruding in the first direction beyond the attachment surface. [Effects of the Invention]

[0007] According to the present disclosure, it is possible to provide a base material around which a skin material can be wrapped in an attractive manner at the position where the flange portion is provided at the end of the base material. [Brief explanation of the drawings]

[0008] [Figure 1] Schematic diagram showing the interior of a vehicle [Figure 2] FIG. 10 is an enlarged perspective view of a portion of the first interior member and the second interior member; [Figure 3] Cross-sectional view showing the AA section of Figure 2 [Figure 4] Enlarged perspective view of a portion of the substrate [Figure 5] Cross-sectional view showing cross section BB of Figure 2 [Figure 6] Cross section of the substrate [Figure 7] Front view of the substrate [Figure 8] FIG. 1 is an explanatory diagram for explaining the effects of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings.

[0010] As shown in FIG. 1, vehicle C includes a first interior member 10 that forms the interior design of the vehicle cabin, and a second interior member 20 that is adjacent to the first interior member 10. Arrow W in FIG. 1 indicates the width direction of vehicle C, and arrow H indicates the up-down direction of vehicle C. The first interior member 10 and the second interior member 20 are, for example, vehicle interior members that form part of the design of the dashboard of vehicle C, but are not limited to this and can be applied to a wide variety of locations as interior members that form the interior design of vehicle C.

[0011] 2 is an enlarged perspective view showing a portion of the joint where the first interior member 10 and the second interior member 20 are adjacent to each other. The first interior member 10 and the second interior member 20 are each plate-shaped. The first interior member 10 of this embodiment extends, for example, in a first direction X and a second direction Y that intersects with the first direction X. The second interior member 20 extends, for example, in the second direction Y and a third direction Z that intersects with the second direction Y.

[0012] The first interior member 10 includes a front surface 10a that faces the interior of the vehicle C (see FIG. 1) and a back surface 10b opposite the front surface 10a. Similarly, the second interior member 20 includes a front surface 20a and a back surface 20b. An end 10c of the first interior member 10 abuts an end 20c of the second interior member 20. This means that at the joint between the first interior member 10 and the second interior member 20, the front surfaces 10a and 20a are visible, rather than the edges of each. This improves the appearance.

[0013] The first interior member 10 includes a base material 1 and a skin material 10d that is made of resin and wrapped around the base material 1. The skin material 10d of this embodiment has a two-layer structure that includes a skin layer and a cushion layer, and its thickness decreases when it is stretched.

[0014] The substrate 1 may be made of a thermoplastic resin, such as polypropylene (PP), ABS resin, polyethylene (PE), polystyrene (PS), acrylic resin, polycarbonate (PC), polyamide, polyethylene terephthalate (PET), or modified polyphenylene ether (modified PPE).

[0015] The substrate 1 comprises a base 11 and flange portions 13. The base 11 is plate-shaped and extends in the first direction X and the second direction Y, and includes an end portion 11a of the substrate 1 in the first direction X. The flange portions 13 are provided at the end portion 11a of the base 11. In this embodiment, the flange portions 13 include a first flange portion 13a and a second flange portion 13b that are arranged at an interval in the second direction Y. However, this is not a limitation, and the number of flange portions 13 can be changed depending on the shape and size of the substrate 1 and, ultimately, the first interior member 10.

[0016] The end 11a of the base 11 is divided into a first region R1 in which the flange 13 is disposed and a second region R2 disposed at a position different from the first region R1. The length of the first region R1 in the second direction Y is equal to the size of the flange 13 in the second direction Y.

[0017] 3 is a cross-sectional view showing a cross section taken along line AA in FIG. 2 (second region R2). As shown in FIG. 3, the base 11 has a first thickness d1 in the third direction Z. The end 11a has a first surface 111 arranged facing the interior of the vehicle C (see FIG. 1), a second surface 112 opposite the first surface 111, and a base end surface 113 connecting the first surface 111 and the second surface 112. The base end surface 113 extends in the second direction Y and the third direction Z.

[0018] At the end 11a, the skin material 10d covers the first surface 111, is folded back in the opposite direction at the base end surface 113 (in this embodiment, turned 180°), and is stretched to the second surface 112 and attached to the base 11. The skin material 10d is fixed to the second surface 112 by heat welding or tacker fastening. In this way, the skin material 10d is wrapped around the base material 1. At this time, the skin material 10d is stretched, and the thickness d3 of the skin material 10d covering the base end surface 113 becomes smaller than the thickness d4 of the skin material 10d covering the first surface 111 and the second surface 112.

[0019] The structure of the flange portion 13 will be described using the first flange portion 13a as an example. FIG. 4 is a perspective view of the first flange portion 13a viewed from the first surface 111 side of the end portion 11a. As shown in FIG. 4, the flange portion 13 has a plate-shaped first flange piece 131 extending in the third direction Z and a plate-shaped second flange piece 132 extending in the first direction X. The first flange piece 131 includes a first end 131a connected to the end portion 11a of the base 11 and a second end 131b opposite the first end 131a. The second flange piece 132 includes a third end 132a connected to the second end 131b of the first flange piece 131 and a fourth end 132b opposite the third end 132a. The second flange piece 132 has a through hole 133. The through hole 133 penetrates the second flange piece 132 along the third direction Z.

[0020] Fig. 5 is a cross-sectional view showing a cross section in the BB cross section (first region R1) of Fig. 2. As shown in Fig. 5, the through-hole 133 receives the fastening member 30 attached to the second interior member 20. As a result, the first interior member 10 is fastened to the second interior member 20 via the fastening member 30. The fastening member 30 is, for example, a resin clip, but is not limited to this, and bolts, nuts, etc. can also be selected.

[0021] 6 is a cross-sectional view of the base 11 corresponding to the cross section BB (first region R1) in FIG. 2. As shown in FIG. 6, the first flange piece 131 has an attachment surface 136. The attachment surface 136 is disposed on the same side as the first surface 111 of the end portion 11a (i.e., the outer surface side). The attachment surface 136 is disposed spaced apart in the first direction X from the base end surface 113 in the second region R2 on the opposite side of the first direction X (the opposite direction of the arrow X in FIG. 6).

[0022] The substrate 1 further includes a protrusion 15 provided on the end portion 11a. The protrusion 15 is disposed in the first region R1 and protrudes in the first direction X beyond the mounting surface 136 of the flange portion 13. In this embodiment, the mounting surface 136 is disposed spaced apart in the first direction X from the side opposite the side from which the protrusion 15 protrudes from the base end surface 113 in the second region R2. The protrusion 15 is formed by recessing a portion of the tip of the base 11 toward the mounting surface 136 in the first direction X. In other words, the protrusion amount h1 of the protrusion 15 from the mounting surface 136 is equal to the distance in the first direction X between the base end surface 113 of the base 11 and the mounting surface 136.

[0023] The protrusion 15 has a third surface 151, a fourth surface 152 opposite to the third surface 151 in the third direction Z, and a protruding end surface 153 connecting the third surface 151 and the fourth surface 152.

[0024] The third surface 151 is continuous with the first surface 111 of the end portion 11a without any steps and extends in the first direction X and the second direction Y. The fourth surface 152 is continuous with the mounting surface 136 of the flange portion 13 and extends in the first direction X and the second direction Y. The fourth surface 152 is disposed between the first surface 111 and the second surface 112 of the base portion 11 in the third direction Z.

[0025] The protruding end surface 153 intersects the third surface 151 and the fourth surface 152 and extends in the second direction Y and the third direction Z. The protruding end surface 153 may be a flat surface or a curved surface. In this embodiment, the protruding end surface 153 is a flat surface that is flush with the base end surface 113 of the base 11 in the first direction X. Hereinafter, for convenience of explanation, the tip surface in the first region R1 will be referred to as the protruding end surface 153, and the tip surface in the second region R2 will be referred to as the base end surface 113.

[0026] The second thickness d2, which is the thickness of the protrusion 15 in the third direction Z, is smaller than the first thickness d1 of the base 11. The second thickness d2 is the maximum distance in the third direction Z between the third surface 151 and the fourth surface 152. In this embodiment, the second thickness d2 is greater than or equal to one-third and less than one-half of the first thickness d1 of the base 11.

[0027] 7 is a front view of the flange portion 13 and the protrusion 15 as viewed from the first direction X. As shown in Fig. 7, the first length L1 of the protrusion 15 in the second direction Y is equal to or greater than the second length L2 of the flange portion 13. When the protrusion 15 is formed flush with the end portion 11a by excavating a portion of the end portion 11a as in this embodiment, the first length L1 of the protrusion 15 is the length of the excavated portion 15a in the second direction Y.

[0028] The second length L2 of the flange portion 13 is equal to the length of the first region R1 in the second direction Y. In this embodiment, the first length L1 of the protrusion 15 is greater than the second length L2 of the flange portion 13 (the length of the first region R1). However, the first length L1 of the protrusion 15 may be equal to the second length L2 of the flange portion 13. In this case, the first length L1 of the protrusion 15, the second length L2 of the flange portion 13, and the length of the first region R1 are the same. Furthermore, the first length L1 of the protrusion 15 may be shorter than the second length L2 of the flange portion 13.

[0029] Next, the effect of the protrusion 15 will be described with reference to FIGS. 8(a), 8(b), and 8(c). FIG. 8(a) is an explanatory diagram showing how the skin material 10d is wrapped around the end 11a of the base 11 at a location where the flange 13 is not provided. As shown in FIG. 8(a), the stretchable skin material 10d is wrapped around the end 11a of the substrate 1 in the order of the first surface 111, the base end surface 113, and the second surface 112. Specifically, the skin material 10d is stretched and brought into close contact with the first surface 111 of the substrate 1. The end of the skin material 10d protrudes from the first surface 111 of the substrate 1. The end of the skin material 10d is stretched and folded back from a first position P1 indicated by a dashed line to a second position P2 indicated by a dashed line, and then brought into close contact with the base end surface 113. Furthermore, the end of the skin material 10d is stretched from the second position P2 to the third position P3 and brought into close contact with the second surface 112 of the base material 1. Finally, the end of the skin material 10d is fixed to the second surface 112 of the end portion 11a. In this manner, the skin material 10d is wrapped around the end portion 11a of the base material 1 with the direction of extension reversed (rotated 180°) at the base end surface 113 of the end portion 11a in the second region R2. As a result, the skin material 10d is wrapped around the end portion 11a of the base material 1 without wrinkling, and the portion covering the base end surface 113 is stretched, reducing the thickness of that portion.

[0030] 8(b) and 8(c) show how the skin material 10d is wrapped around the end 11a of the base 11 at the location where the flange 13 is provided on the end 11a. Fig. 8(b) shows a case where no protrusion 15 is provided on the end 11a. Fig. 8(c) shows a case where the protrusion 15 is provided on the end 11a.

[0031] As shown in Figure 8(b), the skin material 10d is bent at the base end surface 113 of the end portion 11a and fixed to the mounting surface 136 of the flange portion 13. The skin material 10d is difficult to stretch where the flange portion 13 is provided, and may bulge near the base end surface 113 compared to areas where the flange portion 13 is not provided. Figure 8(b) shows an example in which the skin material 10d is not stretched at all.

[0032] 8(c), when the protrusion 15 is provided at the end 11a, the skin 10d is folded back from the protruding end surface 153 of the protrusion 15 toward the fourth surface 152. Furthermore, the skin 10d is fixed to the mounting surface 136 of the flange 13 while being stretched by the protruding end surface 153 of the protrusion 15. This prevents the skin 10d from expanding at the end 11a.

[0033] As described above, the substrate 1 according to this embodiment can provide the following effects.

[0034] The substrate 1 is wrapped with a skin material 10d, and includes: a base 11 extending in a first direction X and a second direction Y intersecting the first direction X; a flange 13 provided at an end 11a of the base 11 in the first direction X, extending in a third direction Z intersecting the first direction X and the second direction Y, and having an attachment surface 136 to which the skin material 10d is attached; and a protrusion 15 provided at the end 11a of the base 11, protruding beyond the attachment surface 136 in the first direction X.

[0035] With this substrate 1, at the end 11a where the flange 13 is provided, the skin material 10d can be attached to the attachment surface 136 of the flange 13 while being stretched along the protrusion 15. This allows the skin material 10d to be wrapped around the end 11a while being sufficiently stretched, even at the position where the flange 13 is provided. As a result, the skin material 10d can be wrapped around the substrate 1 in an attractive manner at the position where the flange 13 is provided at the end 11a of the substrate 1.

[0036] The base 11 may have, at the end 11a, a first region R1 in which the flange 13 is disposed and a second region R2 disposed at a position different from the first region R1, the protrusion 15 may be provided in the first region R1, and an end face (end end face) 113 of the second region R2 in the first direction X may be flush with an end face (protrusion end face 153) of the protrusion 15. This allows the skin material 10d to be wrapped evenly (without steps) around the end 11a of the first region R1 and the second region R2.

[0037] Furthermore, the thickness (second thickness) d2 of the protruding portion 15 in the third direction Z may be smaller than the thickness (first thickness) d1 of the base portion 11 in the third direction Z. This increases the force per unit area with which the protruding portion 15 stretches the skin material 10d, allowing the skin material 10d to be wrapped around the substrate 1 in a sufficiently stretched state.

[0038] Furthermore, the length (first length) L1 of the protruding portion 15 in the second direction Y may be equal to or greater than the length (second length) L2 of the flange portion 13 in the second direction Y. This prevents a portion of the skin material 10d attached to the mounting surface 136 of the flange portion 13 from protruding from the protruding portion 15.

[0039] Although the present disclosure has been described above with reference to the embodiment, the present disclosure is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the invention. In particular, the multiple modifications described in this specification can be arbitrarily combined as necessary.

[0040] In the present embodiment, the protruding end surface 153 of the protruding portion 15 and the base end surface 113 of the base 11 in the second region R2 are flush with each other, but the present disclosure is not limited to this. That is, the protruding portion 15 may be provided to protrude from the base end surface 113, and the protruding end surface 153 may be disposed spaced apart from the base end surface 113 in the first direction X. [Explanation of symbols]

[0041] 1: Base material 11: Base 11a: End 13: Flange part 15:Protrusion R1: 1st area R2: 2nd area X: 1st direction Y: Second direction Z: 3rd direction 10d:Skin material

Claims

1. A substrate on which a skin material is wrapped, a base portion extending in a first direction and a second direction intersecting the first direction; a flange portion provided at an end of the base portion in the first direction, extending in a third direction intersecting the first direction and the second direction, and having a mounting surface to which the skin material is attached; a protrusion provided at the end of the base and protruding beyond the mounting surface in the first direction; Equipped with Base material.

2. the base portion has, at the end portion, a first region in which the flange portion is disposed and a second region disposed at a position different from the first region, the protrusion is provided in the first region, an end surface of the second region in the first direction and an end surface of the protrusion are flush with each other; The substrate of claim 1 .

3. a thickness of the protrusion in the third direction that is smaller than a thickness of the base in the third direction; The substrate of claim 1 .

4. The length of the protrusion in the second direction is equal to or greater than the length of the flange in the second direction. The substrate of claim 1 .

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