Interior component combination structure

Abstract

To provide a combination structure of interior components in which a first interior component and a second interior component can be combined while suppressing reduction in design of a skin material.SOLUTION: A combination structure S is a combination structure of a first interior component 1 and a second interior component 2. The first interior component includes a base material 4, and a skin material 5 covering a surface of the base material. A projection part 11 obtained by laying an outer edge part 5a of the skin material and subjected to winding processing is installed to extend in an outer edge of the base material. The second interior component is provided with an insertion part 27 to which the projection part is inserted.SELECTED DRAWING: Figure 2

Description

[[Technical Field]]

[0001] The present invention relates to a combined structure of interior parts, and more specifically to a combined structure of a first interior part and a second interior part. [[Background Art]]

[0002] As a conventional combined structure of interior parts, a combined structure of a first interior part and a second interior part that constitutes a vehicle door trim is generally known (see, for example, Patent Document 1). Patent Document 1 describes that, as the first interior part, an optical fiber skin material in which optical fibers are woven is attached to a base material. As this type of combined structure of the first interior part and the second interior part, an overlapping structure (see Fig. 10(a)) in which the second interior part 102 (peripheral part) is placed from the design surface side of the first interior part 101, or a back-butt joint structure (see Fig. 10(b)) in which the first interior part 101 is assembled from the back surface side of the second interior part 102 is recommended to be adopted.

[0003] On the other hand, it is also conceivable to adopt an overlapping structure in which the second interior part is placed from the back surface side of the first interior part, or a back-butt joint structure 100S (see Fig. 11(a)) in which the first interior part 101 is assembled from the design surface side of the second interior part 102. In these structures, when manufacturing the first interior part, it is necessary to wrap the outer edge of the optical fiber skin material around the back surface of the base material to improve the appearance. In particular, in the above-mentioned back-butt joint structure 100S, as shown in Fig. 11(b), in order to eliminate wrinkles of the optical fiber skin material 105 at the acute-angled portion 106 of the base material 104, it is necessary to wrap the outer edge 105a of the optical fiber skin material 105 while pulling it strongly. [[Prior Art Documents]] [[Patent Documents]]

[0004] [[Patent Document 2]] Japanese Unexamined Patent Publication No. 2018-197083 [[Summary of the Invention]] [Problems that the invention aims to solve]

[0005] However, in the above-described back-cut joint structure 100S, when manufacturing the first interior component 101, it is necessary to strongly pull the outer edge 105a of the optical fiber sheath material 105 at the acute angle 106 of the base material 104 and wrap it around to the back side. As a result, the optical fiber sheath material 105 may be partially crushed, resulting in a thinner plate thickness or distortion of the design surface in the direction of the pull. It should be noted that the above problems may occur in much the same way even with sheath materials that do not have optical fibers woven into them. Furthermore, they may occur in much the same way at the obtuse angle of the base material.

[0006] This invention has been made in view of the above-mentioned circumstances, and aims to provide an interior component combination structure that allows a first interior component and a second interior component to be combined while suppressing a decrease in the aesthetic appeal of the surface material. [Means for solving the problem]

[0007] The present invention is as follows: 1. A combination structure of a first interior component and a second interior component, The first interior component comprises a base material and a surface material that covers the surface of the base material, The outer edge of the base material has a projection that extends from it, onto which the outer edge of the surface material is laid and wrapped. The interior component combination structure is characterized in that the second interior component is provided with an insertion portion into which the projection is inserted. 2. The projection is provided on one side of the base material, forming a combination structure of interior components as described in 1. above. 3. The combination structure of interior components as described in 1. above, wherein the projection is provided near the R portion connecting two sides of the base material. 4. The interior component combination structure described in 3. above, wherein the angle between the two sides of the base material is acute. 5. The surface material is a combination structure of interior components as described in 1. above, having a fabric in which optical fibers are woven as constituent threads. [Effects of the Invention]

[0008] According to the interior component combination structure of the present invention, the first interior component comprises a base material and a surface material covering the surface of the base material. A projection extends from the outer edge of the base material, onto which the outer edge of the surface material is laid and wrapped. The second interior component is provided with an insertion part into which the projection is inserted. This allows the outer edge of the surface material to be laid and wrapped around the projection, which is offset to the outside of the design of the first interior component, thereby suppressing defects in the design surface of the surface material. Therefore, by inserting the projection of the first interior component into the insertion part of the second interior component, the first and second interior components can be combined while suppressing a decrease in the design quality of the surface material. [Brief explanation of the drawing]

[0009] The present invention will be further described in the following detailed description with reference to several drawings, including non-limiting examples of typical embodiments of the present invention, where similar reference numerals indicate similar parts in several of the drawings. [Figure 1] This is a front view of a vehicle door trim according to an embodiment, as seen from the inside of the vehicle. [Figure 2] This is an explanatory diagram of the combination structure of interior components according to the embodiment, where (a) shows an enlarged view of the main part of Figure 1, (b) shows an enlarged cross-sectional view along line bb, and (c) shows an enlarged cross-sectional view along line cc. [Figure 3] This diagram illustrates the combined structure of interior components. (a) shows a plan view of the first interior component as seen from the surface, (b) shows a plan view of the second interior component as seen from the surface, and (c) shows a plan view of the first and second interior components assembled as seen from the surface. [Figure 4] This is an explanatory diagram of the first interior component, where (a) shows a plan view of the main part as seen from the surface of the base material, (b) shows a plan view of the main part as seen from the surface of the first interior component, and (c) shows a plan view of the main part as seen from the back of the first interior component. [Figure 5] This is an explanatory diagram of the first interior component. [Figure 6] This shows a perspective view of the main part of the second interior component as seen from the surface. [Figure 7] These are explanatory diagrams of the combination structure of interior components in other forms, where (a) shows a form in which a long projection is provided along one side of the base material, and (b) shows a form in which a projection is provided along two sides of the base material. [Figure 8] This is an explanatory diagram of the combination structure of interior components in further other forms, where (a) shows a form in which a projection is extended from the outer edge of the base material without a step, and (b) shows a form in which a projection is extended toward the back side of the base material. [Figure 9] This is an explanatory diagram of the combination structure of interior components in further other forms, where (a) shows a plan view of the main part as seen from the surface of the base material, and (b) shows a plan view of the main part as seen from the surface of the first interior component. [Figure 10] These are diagrams illustrating the conventional combination structure of interior components, where (a) shows a top-on joint structure and (b) shows a back-cut joint structure. [Figure 11] This is an explanatory diagram of a conventional back-cut joint structure, where (a) shows a cross-sectional view of the main part and (b) shows a plan view of the main part as seen from the surface of the first interior component. [Modes for carrying out the invention]

[0010] The matters presented herein are illustrative and illustrative to illustrate embodiments of the present invention, and are intended to provide what is considered to be the most effective and readily understandable explanation of the principles and conceptual features of the present invention. In this regard, it is not intended to show structural details of the present invention beyond what is necessary for a fundamental understanding of the invention, and the description, in conjunction with the drawings, will make it clear to those skilled in the art how some forms of the present invention are actually embodied.

[0011] Hereinafter, the present invention will be specifically described by way of embodiments with reference to the drawings. In the present embodiment, as the "interior component" according to the present invention, as shown in Fig. 1, a first interior component 1 and a second interior component 2 (also referred to as a "decorative component") that constitute a vehicle door trim 31 are exemplified. Further, in the following description, the front surfaces of the first and second interior components 1 and 2 refer to the design surfaces, and the back surfaces of the first and second interior components 1 and 2 refer to the non-design surfaces.

[0012] The vehicle door trim 31 includes a trim main body 32 that covers a metal inner panel (not shown) from the vehicle interior side. The trim main body 32 includes the first interior component 1, the second interior component 2 and an upper board 34 that form a design surface on the vehicle interior side. The upper board 34 has a base material 34a made of synthetic resin and a skin material 34b covering the surface of the base material 34a (see Fig. 2).

[0013] As shown in Fig. 1 and Fig. 2, the combined structure S of interior components according to the present embodiment is a combined structure S of the first interior component 1 and the second interior component 2. Specifically, the present structure S is a back-to-back joint structure in which the first interior component 1 is assembled from the design surface side of the second interior component 2 such that the respective design surfaces are continuous substantially flush with each other. However, a structure in which the first interior component 1 is assembled from the design surface side of the second interior component 2 such that the respective design surfaces are continuous in a stepped shape may also be adopted.

[0014] The first interior component 1 includes a base material 4 and a skin material 5 covering the surface of the base material 4. The base material 4 is formed of synthetic resin. Further, as shown in Fig. 3(a), the base material 4 is formed in a plate shape (specifically, a long plate shape). The planar shape of the base material 4 is a polygon (specifically, a quadrilateral) having a plurality of sides 4a to 4d. Further, a boss 7 for attaching the first interior component 1 to the second interior component 2 is provided on the back surface of the base material 4.

[0015] As shown in Figure 4, two sides 4a and 4b of the base material 4 are connected via an R-shaped section 9. The angle θ1 between the two sides 4a and 4b of the base material 4 is acute (for example, 40 degrees). The radius of curvature of the R-shaped section 9 is also relatively small (for example, 10 mm or less). Furthermore, an acute-angled section 6 is formed on the base material 4 in the area enclosed by the two sides 4a and 4b and the R-shaped section 9.

[0016] A projection (tongue-shaped portion) 11 extends from the outer edge of the base material 4, onto which the outer edge portion 5a of the surface material 5 is laid and wrapped. The projection 11 is located near the R portion 9 that connects the two sides 4a and 4b of the base material 4. The projection 11 is also located on one of the two sides 4a and 4b of the base material 4, side 4b. Furthermore, the projection 11 is connected to the base material 4 via a stepped portion 12 so as to be arranged in a stepped manner in the thickness direction of the base material 4 (see Figure 2(b)).

[0017] The projection 11 extends toward the outside of the base material 4 (i.e., toward the outside of the design of the first interior component 1). The projection 11 has one side 11a connected to the R portion 9 of the base material 4, one side 11b connected to one side 4b of the base material 4, and a connecting portion 13 connecting the two sides 11a and 11b. The angle θ2 between one side 11a of the projection 11 and one side 4a of the base material 4 is set to a value greater than the angle θ1 between the two sides 4a and 4b of the base material 4 (specifically, an obtuse angle). Furthermore, the angle θ3 between one side 11b of the projection 11 and one side 4b of the base material 4 is set to a value greater than the angle θ1 between the two sides 4a and 4b of the base material 4 (specifically, an obtuse angle). In addition, the connecting portion 13 is formed in an arc shape.

[0018] The surface material 5 is formed to cover the entire surface of the base material 4. The outer edge 5a of the surface material 5 is wrapped around the back surface of the base material 4 and attached with an adhesive or the like. Specifically, at the protrusions 11 of the base material 4, the outer edge 5a of the surface material 5 is laid on the surface of the protrusions 11 and wrapped around the back surface (see Figures 4 and 2(b)). Furthermore, at parts of the base material 4 other than the protrusions 11, the outer edge 5a of the surface material 5 is laid on the surface of the base material 4 and wrapped around the back surface (see Figure 2(c)).

[0019] The amount of coverage of the surface material 5 around the base material 4 and the protrusions 11 is not particularly limited. Furthermore, the outer edge 5a of the surface material 5 may be laid over the entire surface of the protrusions 11, or it may be laid over a part of the surface of the protrusions 11.

[0020] As shown in Figure 5, the outer skin material 5 has a woven fabric 17 in which optical fibers 16 (specifically, side-emitting optical fibers 16) are woven as constituent threads. Furthermore, the outer skin material 5 has a cushion layer 18 laminated on the back surface of the woven fabric 17. The material of the cushion layer 18 is not particularly limited, but a sheet material made of soft polyurethane foam is often used. In addition, other soft resin foams can be used as long as they have sufficient cushioning properties.

[0021] The optical fibers 16 are exposed (extend) from the ends of the outer material 5. The ends of these exposed optical fibers 16 are bundled together with a sleeve or heat shrink tubing to form a bundled portion 16a. When light from the light source 19 enters through the bundled portion 16a of the optical fibers 16 and is emitted from the surface of the outer material 5, the first interior component 1 emits light.

[0022] The fabric 17 is a cloth woven from constituent threads (warp and weft threads), and its weave structure is not particularly limited. Specifically, various weave structures such as plain weave, twill weave, and satin weave can be used. Furthermore, the optical fiber 16 has a core-sheath structure (multilayer structure) consisting of a core layer and a sheath (cladding layer), and various types can be used in which the refractive indices of the core layer and the cladding layer are different. In addition, the optical fiber 16 may be a side-emitting type in which light incident from one end is emitted from part or all of the circumferential surface, or an end-emitting type in which light incident from one end is emitted from the other end. Furthermore, the optical fiber 16 is used in at least one of the warp threads and weft threads constituting the fabric 17, and in particular, it can be used in a form used as a weft thread. Furthermore, the types of constituent yarns other than the optical fibers 16 that make up the fabric 17 (hereinafter also referred to as "other constituent yarns") are not particularly limited, but they can be made from natural fibers of plant and animal origin, regenerated fibers such as rayon, semi-synthetic fibers such as acetate, synthetic fibers made of synthetic resin, etc.

[0023] The second interior component 2 is made of synthetic resin. Furthermore, as shown in Figures 2 and 3, the second interior component 2 is formed in a frame shape. Specifically, the second interior component 2 has a frame wall 21 that forms a design surface, and a side wall 22 that extends from the inner circumference of the frame wall 21 toward the back surface. The second interior component 2 also has a bottom wall 23 connected to the tip of the side wall 22. The outer edge of the frame wall 21 abuts against the surface of the upper board 34. The side wall 22 and the bottom wall 23 form a space for housing the first interior component 1. The bottom wall 23 also has a through hole 24 through which the boss 7 of the first interior component 1 is inserted. The first interior component 1 and the second interior component 2 are integrated by inserting the boss 7 through the through hole 24 and fastening it with screws or the like.

[0024] As shown in Figures 2 and 6, the second interior component 2 (specifically the side wall 22) is provided with an insertion part (insertion opening) 27 into which the projection 11, which has been laid and wrapped with the outer edge 5a of the surface material 5, is inserted. The insertion part 27 is made up of a through hole. The insertion part 27 is also provided with ribs 28 for positioning and holding the projection 11 and the outer edge 5a of the surface material 5. Furthermore, the opening width of the insertion part 27 is set to be slightly larger than the width of the projection 11.

[0025] Furthermore, the insertion portion 27 may be made up of a recess. In addition, instead of providing the rib 28, the projection 11 and the outer edge 5a of the surface material 5 may be positioned and held by setting the opening height of the insertion portion 27.

[0026] Next, the effects of the combination structure S of the interior components with the above configuration will be explained. When manufacturing the first interior component 1, the surface of the base material 4 is covered with the surface material 5, and the outer edge 5a of the surface material 5 is wrapped around the back surface of the base material 4 and attached with adhesive or the like. At this time, the outer edge 5a of the surface material 5 is laid over the protrusion 11 which is offset to the outside of the design of the first interior component 1 and wrapped around it (see Figure 4). In the wrapping process, since the angles θ2 and θ3 between each side 11a and 11b of the protrusion 11 and each side 4a and 4b of the base material 4 are obtuse angles, the outer edge 5a of the surface material 5 can be lightly bent and wrapped around the back surface of the protrusion 11 and attached. Therefore, the occurrence of defects in the design surface of the surface material 5 (for example, wrinkles, crushing, distortion, etc.) at the acute angle 6 of the base material 4 is suppressed.

[0027] The protrusion 11 of the manufactured first interior part 1 is inserted into the insertion part 27 of the second interior part 2, and the first interior part 1 is placed inside the frame-shaped second interior part 2 to integrate the first and second interior parts 1 and 2. At this time, the outer edge of the first interior part 1 is pressed against the side wall 22 of the second interior part 2 all around, compressing the surface material 5 in the thickness direction, and the first interior part 1 and the second interior part 2 are assembled in a tightly fitted state (see Figure 2).

[0028] As described above, according to the interior component combination structure S of this embodiment, the first interior component 1 comprises a base material 4 and a surface material 5 that covers the surface of the base material 4. A projection 11 extends from the outer edge of the base material 4, onto which the outer edge 5a of the surface material 5 is laid and wrapped. The second interior component 2 is provided with an insertion part 27 into which the projection 11 is inserted. As a result, when manufacturing the first interior component 1, the outer edge 5a of the surface material 5 is laid and wrapped onto the projection 11 which is offset to the outside of the design of the first interior component 1, thereby suppressing the occurrence of defects in the design surface of the surface material 5. Therefore, by inserting the projection 11 of the first interior component 1 into the insertion part 27 of the second interior component 2, the deterioration of the design quality of the surface material 5 can be suppressed and the first interior component 1 and the second interior component 2 can be combined.

[0029] Furthermore, in this embodiment, the projection 11 is provided on one side 4b of the multiple sides 4a to 4d of the base material 4. This allows the first interior component 1 to be easily assembled to the frame-shaped second interior component 2.

[0030] Furthermore, in this embodiment, the projection 11 is provided near the R portion 9 that connects two sides 4a and 4b of the base material 4, and the angle θ1 formed by the two sides 4a and 4b of the base material 4 is acute. This makes it possible to suppress the occurrence of defects in the design surface of the surface material 5 at the acute angle portion 6 of the base material 4.

[0031] Furthermore, in this embodiment, the surface material 5 has a fabric 17 in which optical fibers 16 are woven as constituent threads. This makes it possible to suppress a decrease in the aesthetic appearance of the optical fiber surface material 5 (particularly the light emission form of the optical fiber surface material 5).

[0032] Furthermore, in this embodiment, the angle θ2 between each side 11a, 11b of the projection 11 and each side 4a, 4b of the base material 4 is greater than the angle θ1 between two sides 4a, 4b of the base material 4. This allows the outer edge 5a of the surface material 5 to be easily wrapped around the projection 11.

[0033] Furthermore, the present invention is not limited to the above embodiments, and various modified embodiments can be made within the scope of the present invention depending on the purpose and application. That is, in the above embodiments, a projection 11 provided at the end of one side 4b of the base material 4 was illustrated, but the invention is not limited to this, and for example, as shown in Figure 7(a), a projection 11 provided in an elongated shape along one side 4b of the base material 4 may be adopted.

[0034] Furthermore, although the above embodiment illustrates a projection 11 provided only on one side 4b of the base material 4, the invention is not limited to this, and for example, as shown in Figure 7(b), a projection 11 provided on two sides 4b and 4c of the base material 4 may be adopted.

[0035] Furthermore, although the above embodiment illustrates a projection 11 connected to the outer edge of the base material 4 via a stepped portion 12, the embodiment is not limited to this. For example, as shown in Figure 8(a), a projection 11 that is directly connected to the outer edge of the base material 4 without a stepped portion 12 may be used.

[0036] Furthermore, although the above embodiment illustrates a projection 11 extending outward from the base material 4, the invention is not limited to this, and for example, as shown in Figure 8(b), a projection 11 extending toward the back side of the base material 4 (i.e., the outward side of the design of the first interior component 1) may also be adopted.

[0037] Furthermore, in the above embodiment, a projection 11 with one side 11a connected to the R portion 9 of the base material 4 was illustrated, but the invention is not limited to this. For example, as shown in Figure 9, a projection 11 may be provided near the R portion 9 of the base material 4 such that the distance L between one side 11a of the projection 11 and one end of the R portion 9 is 30 mm (preferably 20 mm, especially 10 mm). Moreover, a projection 11 may be provided spaced apart from the R portion 9 of the base material 4 such that the distance L between one side 11a and one end of the R portion 9 exceeds 30 mm.

[0038] Furthermore, while the above embodiment illustrates a configuration in which the outer edge 5a of the surface material 5 is wrapped around the entire circumference of the back surface of the base material 4, the embodiment is not limited to this, and for example, a configuration in which a part of the outer edge 5a of the surface material 5 is wrapped around the back surface of the base material 4 may also be adopted.

[0039] Furthermore, in the above embodiment, an example was given in which the angle θ1 formed by the two sides 4a and 4b of the base material 4 is acute and a projection 11 is provided on one side. However, the embodiment is not limited to this, and for example, an example may be adopted in which the angle θ1 formed by the two sides 4a and 4b of the base material 4 is obtuse and a projection 11 is provided on one side.

[0040] Furthermore, while the above embodiment illustrates a skin material 5 having a woven fabric 17 in which optical fibers 16 are woven as constituent threads, the invention is not limited to this, and for example, a skin material 5 having a woven or knitted fabric that does not have optical fibers 16 woven as constituent threads may also be used.

[0041] Furthermore, although the above embodiment illustrates interior components 1 and 2 constituting the vehicle door trim 31, it is not limited to these, and interior components constituting vehicle products such as instrument panels, roof trims, floor trims, luggage trims, rear side trims, rear parshells, package trays, pillar garnishes, switch bases, quarter panels, armrests, center consoles, overhead consoles, sun visors, and seats may also be used. Moreover, interior components constituting furniture such as sofas and chairs may also be used.

[0042] The examples described herein are for illustrative purposes only and should not be construed as limiting the invention. Although the invention has been described with examples of typical embodiments, the language used in the description and illustration of the invention should be understood as descriptive and illustrative, not limiting. As detailed herein, modifications are possible within the scope or spirit of the invention without departing in any form. While specific structures, materials, and examples have been referenced herein, the invention is not intended to be limited to the disclosures herein, but rather to encompass all functionally equivalent structures, methods, and uses within the scope of the claims. [Industrial applicability]

[0043] This invention is widely used as a technique for combining a first interior component and a second interior component. [Explanation of Symbols]

[0044] 1; First interior component, 2; Second interior component, 4; Base material, 4a, 4b; Edge of base material, 5; Surface material, 5a; Outer edge of surface material, 9; R portion of base material, 11; Protrusion, 16; Optical fiber, 17; Fabric, 27; Insertion part, S; Combination structure of interior components.

Claims

1. A combination structure of a first interior component and a second interior component, The first interior component comprises a base material and a surface material that covers the surface of the base material, The outer edge of the base material has a projection that extends from it, onto which the outer edge of the surface material is laid and wrapped. The second interior component is provided with an insertion portion into which the projection is inserted. The substrate has a first side (4a), a second side (4b), and an R-shaped portion (9) connecting the first side (4a) and the second side (4b). The projection is provided on the second side (4b) of the base material, The projection has a first side (11a), a second side (11b) which is positioned further away from the R portion (9) of the base material than the first side (11a), and a connecting portion (13) which connects the first side (11a) and the second side (11b). The angle (θ2) between the first side (11a) of the projection and the first side (4a) of the base material is greater than the angle (θ1) between the first side (4a) and the second side (4b) of the base material. An interior component combination structure characterized in that the angle (θ3) between the second side (11b) of the projection and the second side (4b) of the base material is greater than the angle (θ1) between the first side (4a) and the second side (4b) of the base material.

2. The interior component combination structure according to Claim 1, wherein each of the angles (θ2) and (θ3) is an obtuse angle.

3. The interior component combination structure according to Claim 1, wherein the projection is a tapered tongue-shaped portion extending outward from the base material.

4. The interior component combination structure according to claim 1, wherein the projection is provided near the R portion of the base material.

5. The interior component combination structure according to claim 4, wherein the angle between the first side (4a) and the second side (4b) of the base material is an acute angle.

6. The interior component combination structure according to claim 1, wherein the surface material is a fabric in which optical fibers are woven as constituent threads.

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