interior trim part

Abstract

The present invention provides an interior member capable of setting a fastening portion for fastening with other members constituting an interior product at a position on the outer edge side of the back surface of a base material, thereby bringing it close to the appearance boundary. The interior member (decoration (1)) has a plate-shaped base material (2) and a skin member (3) covering the surface of the base material, and the skin member has a fabric (6) in which optical fibers (5) are woven as constituent threads. Furthermore, a bundling structure (21A) that gathers a plurality of optical fibers exposed from the end portion of the skin member in a manner along the back surface of the base material is provided at the end portion of the back surface of the base material.

Description

TECHNICAL FIELD

[0001] The present application relates to an interior member, and more particularly to an interior member provided with a base material in a plate shape and a skin member covering a surface of the base material. BACKGROUND

[0002] As a conventional interior member, a trim that constitutes a door trim panel for a vehicle is generally known. For example, as shown in Figure 13 , the trim 101 is provided with a base material 102 in a plate shape and a skin member 103 that covers a surface of the base material 102. As the skin member 103, an optical fiber skin member 103 having a fabric in which optical fibers are woven as constituent threads is sometimes used (for example, refer to Patent Literature 1 and the like). In the optical fiber skin member 103, the front end portions of a plurality of optical fibers 105 exposed from the end portions of the skin member 103 are bundled with a sleeve 108 or the like to constitute a rake-shaped fiber bundle B. When such an optical fiber skin member 103 is attached to the surface of the base material 102, the rake-shaped fiber bundle B that appears in the appearance from the end portions of the skin member 103 shakes at the time of handling or the like, and there is a possibility that the exposed optical fibers 105 are damaged.

[0003] Therefore, in order to solve the above problems, for example, as shown in Figure 13 (b), a countermeasure is considered in which the rake-shaped fiber bundle B is gathered into a rope shape by a bellows 148 or the like to be protected. Also, for example, as shown in Figure 14 , a countermeasure is considered in which the end of the optical fiber skin member 103 is elongated and wound into the back surface of the base material 102, and the rake-shaped fiber bundle B is fixed to some extent in a manner along the back surface of the base material 102.

[0004] PRIOR ART DOCUMENTS

[0005] PATENT LITERATURE

[0006] Patent Literature 1: Japanese Patent Application Laid-Open No. 2017-193200

[0007] Patent Literature 2: Japanese Patent Application Laid-Open No. 2018-140674 SUMMARY

[0008] PROBLEMS TO BE SOLVED BY THE INVENTION

[0009] However, in the former countermeasure, the bellows 148 or the like needs to be provided, and the production cost increases. Also, in the latter countermeasure, there is a winding allowance 149 (for example, about 10 mm to 30 mm) in which the optical fiber skin member 103 is wound into the back surface of the base material 102, and therefore, in the attachment region of the optical fiber skin member 103 on the back surface of the base material 102, the fastening portion 110 that fastens the other constituent member 143 of the door trim panel 141 cannot be provided (refer to Figure 14Moreover, since the optical fiber bundle B in the form of a rake is present on the back surface of the base material 102, the fastening portion 110 needs to be set at a position separated from the optical fiber bundle B in the form of a rake in consideration of the biting of the optical fiber 105. As a result, the fastening portion 110 cannot be set at a position on the outer edge side of the base material 102, but must be set away from the boundary D2 on the appearance of the garnish 101 (i.e., the abutment position of the other interior member 145 with respect to the appearance surface of the garnish 101). Furthermore, this problem also occurs with interior members in which the surface of the base material is covered by a skin member other than the garnish constituting the vehicle door garnish.

[0010] Moreover, Patent Document 2 describes a technique in which an extension of a skin member formed using a slush molding die is folded back toward the back surface of a base material, and a skin-side locking portion provided in the extension is locked by a base material-side locking portion provided on the back surface of the base material, but there is no description at all regarding a technique for setting a fastening portion for fastening with other members constituting an interior product at a position on the outer edge side of the back surface of the base material so as to be close to the boundary on the appearance.

[0011] The present application was made in view of the above-described circumstances, and has an object to provide an interior member in which a fastening portion for fastening with other members constituting an interior product can be set at a position on the outer edge side of the back surface of a base material so as to be close to the boundary on the appearance.

[0012] Solution to the problem

[0013] To solve the above-described problem, the invention described in Technical Solution 1 is an interior member provided with a plate-shaped base material and a skin member covering the surface of the base material, and the gist thereof is that the skin member has a fabric in which optical fibers are woven as constituent threads, and a bundle structure in which a plurality of the optical fibers exposed from the end portion of the skin member are gathered along the back surface of the base material is provided at the end portion of the back surface of the base material.

[0014] The invention described in Technical Solution 2 is based on the invention described in Technical Solution 1, and the gist thereof is that the bundle structure has a standing wall standing on the back surface of the base material, and a through-hole through which a plurality of the optical fibers can pass is formed in the standing wall.

[0015] The invention described in Technical Solution 3 is based on the invention described in Technical Solution 1, and the gist thereof is that the bundle structure has a pair of standing walls standing on the back surface of the base material and facing each other, and a hook-shaped portion through which a plurality of the optical fibers can be inserted between the pair of standing walls is provided on each of the front end sides of the pair of standing walls.

[0016] The invention described in Technical Solution 4 is based on any one of the inventions described in Technical Solutions 1 to 3, and the gist thereof is that a plurality of the bundle structures are provided along at least one edge portion of the base material.

[0017] The invention described in technical solution 5 is based on the invention described in technical solution 1, and its main purpose is that the interior trim is a decoration constituting the interior trim panel of a vehicle door.

[0018] The effects of the invention

[0019] According to the interior trim of the present invention, the outer skin has a fabric incorporating optical fibers as constituent threads, and a bundle structure is provided at the end of the back side of the substrate to gather a plurality of optical fibers exposed from the end of the outer skin along the back side of the substrate. Thus, a fastening part for fastening other components constituting the interior trim can be positioned near the outer edge of the back side of the substrate, making it close to the visual boundary.

[0020] In addition, the bundled structure has a vertical wall with a through hole formed therein, in which multiple optical fibers can be easily bundled by passing them through the through hole.

[0021] Furthermore, the bundled structure has a pair of upright walls, each with a hook-shaped portion at its front end. In this case, multiple optical fibers can be easily bundled by inserting them from the hook-shaped portions between the pair of upright walls. Moreover, the hook-shaped portions can prevent the multiple optical fibers inserted between the pair of upright walls from coming loose.

[0022] Furthermore, multiple bundled structures are provided along at least one side of the substrate, in which case multiple optical fibers exposed from the end of the skin can be grouped into a predetermined number and aggregated using each bundled structure. Attached Figure Description

[0023] Regarding the present invention, non-limiting examples of typical embodiments of the invention are given, and further described with reference to the several accompanying drawings and the following detailed description, wherein the same reference numerals denote the same parts in some of the drawings.

[0024] Figure 1 This is a front view of a vehicle door interior panel with the decorative elements described in the embodiment.

[0025] Figure 2 yes Figure 1 Enlarged view of the cross section of line II-II.

[0026] Figure 3 yes Figure 1 Enlarged view of the cross section of line III-III.

[0027] Figure 4 This is a three-dimensional view of the aforementioned decoration viewed from the back.

[0028] Figure 5 yes Figure 4 Enlarged view of the main parts.

[0029] Figure 6 is a perspective view of a bundle structure of an embodiment.

[0030] Figure 7 is Figure 6 is an enlarged view of a V-shaped portion of VII, Figure 7 (a) of FIG. 7 shows a manner in which the standing wall is separated from the reinforcing rib, Figure 7 (b) of FIG. 7, Figure 7 (c) of FIG. 7 shows a manner in which the standing wall is connected to the reinforcing rib.

[0031] Figure 8 is a perspective view of a skin member of an embodiment.

[0032] Figure 9 is a perspective view of a bundle structure of another manner, Figure 9 (a) of FIG. 8 shows a manner having a long hole-shaped through hole, Figure 9 (b) of FIG. 8 shows a manner having a plurality of through holes.

[0033] Figure 10 is an explanatory view for explaining a decoration of another manner, Figure 10 (a) of FIG. 9 shows a perspective view of a bundle structure, Figure 10 (b) of FIG. 9 shows a sectional view of the bundle structure, Figure 10 (c) of FIG. 9 shows a c-view.

[0034] Figure 11 is an explanatory view for explaining a decoration of another manner.

[0035] Figure 12 is an explanatory view for explaining a decoration of another manner.

[0036] Figure 13 is an explanatory view for explaining a conventional decoration, Figure 13 (a) of FIG. 10 shows a perspective view as viewed from the back of the decoration, Figure 13 (b) of FIG. 10 shows an enlarged view of a b-b line section,

[0037] Figure 14 is an explanatory view for explaining a conventional decoration, Figure 14 (a) of FIG. 11 shows a perspective view as viewed from the back of the decoration, Figure 14 (b) of FIG. 11 shows an enlarged view of a b-b line section, Figure 14 (c) of FIG. 11 shows an enlarged view of a c-c line section.

[0038] Explanation of Reference Numerals

[0039] 1A-1C, Interior trim (interior parts); 2, Base material; 2b, Lower part (one side); 3, Outer skin; 5, Optical fiber; 6, Fabric; 10, Fastening part; 21A-21C, Bundling structure; 22, Vertical wall; 23, Through hole; 32, A pair of vertical walls; 33, Hook-shaped part; 41, Vehicle door interior panel; D1, D2, External boundary. Detailed Implementation

[0040] The matters illustrated herein are illustrative and serve to illustrate embodiments of the invention, and are described for the purpose of providing a description that is considered most effective and readily understandable of the principles and conceptual features of the invention. In this respect, it is not intended to depict the detailed construction of the invention beyond what is necessary for a fundamental understanding of the invention, but rather to make clear to those skilled in the art how several aspects of the invention are actually embodied through description in conjunction with the accompanying drawings.

[0041] For example, such as Figure 2 and Figure 5 As shown, the interior trim parts 1A to 1C of this embodiment include a plate-shaped substrate 2 and a skin part 3 covering the surface of the substrate 2. The skin part 3 has a fabric 6 with optical fibers 5 woven in as constituent threads. At the end of the back side of the substrate 2, there are bundle structures 21A to 21C that gather multiple optical fibers 5 exposed from the end of the skin part 3 along the back side of the substrate 2. Furthermore, these interior trim parts 1A to 1C can be components constituting the interior trim product 41 (see reference). Figure 1 ).

[0042] The planar shape of the substrate 2 is not particularly limited. For example, the substrate 2 can be formed in a longitudinally elongated shape. In addition, a fastening part 10 (specifically a fastening protrusion) for fastening to the base member 43 (i.e., other members constituting the interior product 41) can be provided on the back of the substrate 2 (see reference). Figure 4 The fastening part 10 can be provided in multiple ways along at least one side 2a, 2b of the substrate 2 (e.g., one side 2a, 2b of the substrate 2 along the longitudinal direction). Furthermore, the fastening method between the fastening part 10 and the base member 43 is not particularly limited; one or more combinations of threaded fastening, fitting fastening, stop fastening, adhesive fastening, etc., can be appropriately selected. Specifically, the fastening part 10 and the mounting part 11 provided on the base member 43 can be fastened using screws 12 (see [reference]). Figure 3 Furthermore, all or part of the fastening portions 10 can be provided in an area within 30 mm (particularly 20 mm) of the outer edge of the substrate 2. Moreover, at least one reinforcing rib 14 for preventing deformation of the substrate 2 can be provided on the back side of the substrate 2 along one side portion 2a, 2b.

[0043] Further, the fastening portion 10 is required to be provided in the vicinity of the boundary Dl, D2 (i.e., the abutment portion of the interior member 1A to 1C and other interior member 44, 45; the abutment portion of the other interior member 44, 45 and the outer surface of the interior member 1A to 1C) on the appearance of the interior member 1A to 1C (refer to Figure 3 ).

[0044] The material of the base material 2 is not particularly limited. The base material 2 can include a thermoplastic resin. As the thermoplastic resin, polyolefin (particularly, polypropylene), polyester, polystyrene, acrylic, polyamide, polycarbonate, polyacetal, ABS, and the like can be exemplified. These resins can be used singly or in combination of two or more. Further, the base material can include the above-mentioned thermoplastic resin and a reinforcing fiber. As the reinforcing fiber, inorganic fibers (glass fibers, carbon fibers, and the like), organic fibers (natural fibers such as plant fibers and animal fibers, or resin fibers such as polyesters, polyamides, and aramid fibers) can be used. These fibers can be used singly or in combination of two or more. In addition, among the plant fibers, bast fibers (for example, kenaf, flax, jute, hemp, ramie, and the like), leaf vein fibers (for example, abaca, sisal, agave, and the like), wood fibers (for example, fibers collected from broad-leaved trees and coniferous trees, and the like), and other plant fibers (coconut shell fibers, oil palm empty fruit bunch fibers, rice straw fibers, wheat straw fibers, bamboo fibers, cotton, and the like) can be included. These fibers can be used singly or in combination of two or more. Furthermore, the material of the base member is not particularly limited. The base member can be the same material as the above-mentioned base material.

[0045] The skin member 3 covers all or part of the surface of the base material 2. The skin member 3 can be adhered to the surface of the base material 2 with an adhesive or the like, or can not be adhered to the surface of the base material 2. In addition, the planar shape of the skin member 3 is not particularly limited. The skin member can be formed in a longitudinal shape, for example. Further, the skin member 3 can be formed in the same planar shape as the base material 2, or can be formed in a different planar shape from the base material 2.

[0046] The skin member 3 has a fabric 6 in which optical fibers 5 are woven as constituent threads (refer to Figure 8 ). A plurality of optical fibers 5 are exposed (i.e., protrude) from the end portion of the skin member 3 (i.e., the fabric 6). The front end sides of these plurality of optical fibers 5 can be bundled with a sleeve 8, a heat-shrinkable tube, or the like to form an optical fiber bundle B. The optical fiber bundle B can be provided in a plurality along at least one edge portion 3b of the skin member 3 (for example, one edge portion 3b of the skin member 3 in the longitudinal direction). Further, the end portion of the skin member 3 to which the optical fiber bundle B is connected is not folded back toward the back surface side of the base material 2, but can be disposed at the end portion of the surface of the base material 2 (refer to Figure 2 ).

[0047] The skin member 3 can have the fabric 6 and a cushion layer 7 laminated to the back surface of the fabric 6 (refer toFigure 8 The material of the cushioning layer 7 is not particularly limited, but a sheet made of soft polyurethane foam is generally used. Alternatively, another soft resin foam can be used as long as it has sufficient cushioning properties.

[0048] The fabric 6 is a cloth woven from constituent threads (warp threads and weft threads), and the weave is not particularly limited. Specifically, various weaves such as plain weave, twill weave, and satin weave can be used, for example. At least the optical fiber 5 is used as the constituent thread of the fabric 6. As the optical fiber 5, various optical fibers 5 having a core-sheath structure (multilayer structure) in which a core (core layer) and a sheath (cladding layer) are provided and the refractive indexes of the core layer and the cladding layer are different can be used. The optical fiber 5 can be a side-emitting type optical fiber 5 in which light incident from one end side is emitted from a part or the entire of the peripheral surface, or an end-emitting type optical fiber 5 in which light incident from one end side is emitted from the other end side. In particular, in the case of using the side-emitting type optical fiber 5, light from the light source 9 can be emitted from the surface of the fabric 6 (i.e., the skin member 3) in which the optical fiber 5 is woven, and thus the appearance and the performance can be further improved.

[0049] The optical fiber 5 is used for at least one of the warp threads and the weft threads that constitute the fabric, and in particular, the optical fiber 5 can be used for the weft threads. In the case where the optical fiber 5 is used for the warp threads, the proportion of the optical fiber 5 as the warp threads is preferably 10% or more and 90% or less, more preferably 20% or more and 80% or less, and further preferably 30% or more and 70% or less, based on the total number of the warp threads being 100%. In the case where the optical fiber 5 is used for the weft threads, the proportion of the optical fiber 5 as the weft threads is preferably 10% or more and 90% or less, more preferably 20% or more and 80% or less, and further preferably 30% or more and 70% or less, based on the total number of the weft threads being 100%. Furthermore, the diameter of the optical fiber 5 is not particularly limited, but is preferably 0.25 mm to 3 mm, and more preferably 0.1 mm to 1 mm, from the viewpoint of weaving and versatility.

[0050] The type of the constituent thread of the fabric 6 other than the optical fiber 5 (hereinafter also referred to as "other constituent thread") is not particularly limited, but a constituent thread using, as a material, a natural fiber of a plant or animal origin, a regenerated fiber such as rayon, a semi-synthetic fiber such as acetate fiber, or a synthetic fiber made of a synthetic resin can be used. As the resin constituting the synthetic fiber, for example, a polyamide-based resin such as nylon 6 or nylon 66, a polyester-based resin such as polyethylene terephthalate, polybutylene terephthalate, or polytrimethylene terephthalate, a polyolefin-based resin such as high-density polyethylene or polypropylene, or a polyacrylic-based resin can be used.

[0051] In the other constituent yarns constituting the fabric 6, the warp yarns and the weft yarns can use the same yarns or different yarns. In addition, the other constituent yarns used for the warp yarns can be only one kind or two or more kinds in combination. Similarly, the other constituent yarns used for the weft yarns can be only one kind or two or more kinds in combination. In addition, the fineness of the other constituent yarns is not particularly limited, but for example, it is preferably 100 dtex or more and 1000 dtex or less, more preferably 200 dtex or more and 700 dtex or less, and further preferably 300 dtex or more and 500 dtex or less.

[0052] The bundle structures 21A to 21C are structures for bundling a plurality of optical fibers 5, that is, optical fiber bundles B in a manner along the back surface of the base material 2. The bundle structures 21A to 21C can be attached to the back surface of the base material 2 independently of the base material 2, but from the viewpoint of reducing the number of parts and the like, it is preferable to be integrally formed (specifically, integrally molded) with the base material 2. In addition, the bundle structures 21A to 21C can be provided in a region within 20 mm (particularly, 10 mm) from the outer edge of the base material 2. Furthermore, the bundle structures 21A to 21C can be provided only at the end portion of the back surface of the base material 2, or can be provided at a position apart inward from the end portion of the back surface of the base material 2 (refer to Figure 11 ) in addition to the end portion of the back surface of the base material 2.

[0053] The number of the bundle structures 21A to 21C is not particularly limited, but a plurality of the bundle structures 21A to 21C can be provided along at least one side portion 2b of the base material 2 (refer to Figure 4 ). These plurality of bundle structures 21A to 21C can each bundle a predetermined number (for example, 100 or the like) of optical fibers 5. In addition, the number of optical fibers 5 bundled by each of the bundle structures 21A to 21C can be the same or different among two or more bundle structures.

[0054] For example, as shown in Figure 5 and Figure 6 , the bundle structure 21A has a standing wall 22 standing on the back surface of the base material 2, and a through-hole 23 through which a plurality of optical fibers 5, that is, optical fiber bundles B can pass can be formed in the standing wall 22. In this bundle structure 21A, the optical fiber bundle B is inserted into the through-hole 23 from the front end side, and by passing the root side Bl of the optical fiber bundle B, that is, the vicinity of the end portion of the sheath member 3, through the through-hole 23 and gathering it, the optical fiber bundle B can be bundled in a rope-like or belt-like shape or the like in a manner along the back surface of the base material 2.

[0055] The standing wall 22 can be disposed in a manner extending in the direction along the side portion 2b of the base material 2. In addition, the standing wall 22 can be disposed separately from the reinforcing rib 14 (refer to (a) of Figure 7 ), or can be disposed in a manner connected to the reinforcing rib 14 (refer to (b) and (c) of Figure 7 ).Figure 7 The standing wall 22 can have a function of preventing the base material 2 from being deformed by connecting both side surfaces of the base of the standing wall 22 to the reinforcing ribs 14. Further, a cutout portion 15 can be formed in the reinforcing rib 14 at a position corresponding to the standing wall 22. This cutout portion 15 is generally used as a space used by a sliding core that forms the through hole 23.

[0056] A through hole 23 (for example, a circular-shaped through hole 23) for one optical fiber bundle B to pass through can be formed in the standing wall 22 (refer to Figure 6 ), a through hole 23 (for example, a long hole-shaped or elliptical-shaped through hole 23) for a plurality of optical fiber bundles B (particularly, two adjacent optical fiber bundles B) to pass through can be formed (refer to Figure 9 ), and a plurality of through holes 23 (for example, circular-shaped through holes 23) for a plurality of optical fiber bundles B (particularly, two adjacent optical fiber bundles B) to pass through, respectively, can be formed (refer to Figure 9 ).

[0057] An R surface (that is, a curved surface) 24 that guides the insertion of the optical fiber bundle B can be formed in the through hole 23 on the side where the leading end side of the optical fiber bundle B is inserted (refer to Figure 2 ). This R surface 24 is generally formed throughout the entire circumference of the through hole 23. Further, the shape of the through hole 23 is not particularly limited, and for example, a circular shape, a long hole shape, an elliptical shape, a polygonal shape, or the like can be adopted. Furthermore, the shape (for example, a rope shape, a belt shape, or the like) in which the optical fiber bundles B are gathered is determined in accordance with the shape, size, or the like of the through hole 23.

[0058] For example, as shown in Figure 10 , the bundling structure 21B has a pair of standing walls 32 that stand on the back surface of the base material 2 and face each other, and a hook-shaped portion 33 through which a plurality of optical fibers 5 (that is, optical fiber bundles B) can be inserted between the pair of standing walls 32 can be provided on each of the leading end sides of the pair of standing walls 32. In this bundling structure 21B, by inserting the root side Bl (that is, the vicinity of the end portion of the sheath member 3) of the optical fiber bundle B between the hook-shaped portions 33 from directly above each hook-shaped portion 33, the pair of standing walls 32 are elastically deformed so as to separate the hook-shaped portions 33 from each other, and the root side Bl of the optical fiber bundle B is inserted between the pair of standing walls 32 and is gathered, whereby the optical fiber bundle B can be gathered in a rope shape or a belt shape or the like along the back surface of the base material 2. In this gathered state of the optical fiber bundle B, the optical fiber bundle B can be inhibited from coming out by the hook-shaped portions 33. Further, in the gathered state of the optical fiber bundle B, the root side Bl of the optical fiber bundle B can be disposed between the leading end portions in the standing direction of the pair of standing walls 32, or can be disposed at the intermediate portions or the base portions in the standing direction of the pair of standing walls 32. Furthermore, one optical fiber bundle B or a plurality of optical fiber bundles B (particularly, two adjacent optical fiber bundles B) can be inserted between the pair of standing walls 32.

[0059] The pair of vertical walls 32 can each be formed with the same wall thickness, but from the viewpoint of elastic deformation, it is preferable to have a thin-walled portion 32a connected to the back side of the substrate 2 and a thick-walled portion 32b connected to the thin-walled portion 32a at one end and to the hook-shaped portion 33 at the other end. Furthermore, the pair of vertical walls 32 can be arranged in the same position in the direction orthogonal to the relative direction of each vertical wall 32, but from the viewpoint of operability in cases of elastic deformation by fingertip operation, it is preferable to arrange the pair of vertical walls 32 in a staggered position in the direction orthogonal to the relative direction of each vertical wall 32 (see reference). Figure 10 (c)). In addition, a pair of upright walls 32 may be provided vertically on the back side of the substrate 2, but from the viewpoint of effectively converging the fiber bundle B, the pair of upright walls 32 are preferably provided on the back side of the substrate 2 in such a way that they move closer to each other as they move towards the forward end. Moreover, in each hook portion 32, a curved surface 34 for guiding the insertion of the fiber bundle B can be formed on the side where the fiber bundle B is inserted.

[0060] For example, such as Figure 12 As shown, the bundling structure 21C includes a vertical wall 37 erected on the back side of the substrate 2, a horizontal wall 38 extending laterally from the front end of the vertical wall 37, and a hook-shaped portion 39 provided on the front end of the horizontal wall 38. In this bundling structure 21C, by inserting the root side B1 of the fiber bundle B (i.e., the side near the end of the skin member 3) from the side of the hook-shaped portion 39, the horizontal wall 38 is elastically deformed such that the hook-shaped portion 39 separates from the back side of the substrate 2, inserting the root side B1 of the fiber bundle B between the horizontal wall 38 and the back side of the substrate 2 and gathering it together, thereby enabling the fiber bundle B to be bundled into a rope-like or ribbon-like shape along the back side of the substrate 2. In this bundled state of the fiber bundle B, the hook-shaped portion 39 is used to prevent the fiber bundle B from coming out.

[0061] The transverse wall 38 can be formed with the same wall thickness, but from the viewpoint of elastic deformation, it is preferable to have a thin-walled portion 38a connected to the vertical wall 37 and a thick-walled portion 38b connected to the thin-walled portion 38a at one end and to the hook-shaped portion 39 at the other end. Moreover, a limiting piece 41 that restricts the lateral expansion of the optical fiber bundle B can be provided on the back side of the substrate 2.

[0062] The application of this interior trim is not particularly limited. Examples of interior trim components include door panels, dashboards, headliners, floor trim, luggage compartment trim, rear side trim, rear storage panels, rear window sills, pillar trim, switch bases, rear side panels, armrests, center consoles, overhead consoles, sun visors, and seats. Furthermore, it can also be an interior component that constitutes furniture such as sofas or chairs.

[0063] Example

[0064] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Furthermore, in this embodiment, a decorative element 1A constituting a vehicle door interior panel 41 is illustrated as an example of an "interior component" of the present invention.

[0065] like Figures 1-3 As shown, the vehicle door interior panel 41 has a panel-shaped interior body 42 covered with a metal inner panel (not shown) from the inside of the passenger compartment. The interior body 42 has a decorative element 1A forming the exterior surface of the passenger compartment, an upper panel 44, and a lower panel 45.

[0066] The decorative element 1A in this embodiment includes a plate-shaped base material 2 and a skin member 3 covering the surface of the base material 2. The decorative element 1A is disposed vertically between an upper plate 44 and a lower plate 45. Furthermore, the lower end of the upper plate 44 abuts against the surface of the upper end of the decorative element 1A (i.e., the exterior surface), forming a boundary D1 for the exterior appearance of the decorative element 1A. Similarly, the upper end of the lower plate 45 abuts against the surface of the lower end of the decorative element 1A (i.e., the exterior surface), forming a boundary D2 for the exterior appearance of the decorative element 1A. Additionally, the base member 43 constituting the door interior panel 4 is disposed opposite the back side of the decorative element 1A (see reference). Figure 3 ).

[0067] The substrate 2 is formed in a longitudinal shape (specifically, a longitudinal quadrilateral shape) in the longitudinal direction A of the vehicle (see reference). Figure 4 A fastening portion 10 (specifically a fastening protrusion) for fastening to the base member 43 is provided on the back side of the substrate 2. Multiple fastening portions 10 are provided along the upper edge 2a and lower edge 2b of the substrate 2. Furthermore, the fastening portion 10 is fastened to the mounting portion 19 provided on the base member 43 using screws 12 (see reference). Figure 3 Furthermore, reinforcing ribs 14 for preventing deformation of the substrate are provided on the back side of the substrate 2, extending linearly along the upper edge 2a and the lower edge 2b.

[0068] The outer skin component 3 is formed in a longitudinally elongated shape (specifically, a longitudinally elongated quadrilateral shape) along the front-rear direction A of the vehicle. This outer skin component 3 includes a fabric 6 with side-emitting optical fibers 5 woven into it as constituent lines, and a buffer layer 7 layered on the back of the fabric 6 (see reference). Figure 8 In addition, multiple optical fibers 5 are exposed at the ends of the skin member 3. These multiple optical fibers 5 are bundled together at their front ends using sleeves 8, etc., to form an optical fiber bundle B. This optical fiber bundle B has multiple (in) arranged along the lower edge 3b of the skin member 3. Figure 4 (7 in total). Furthermore, with the skin 3 adhered to the surface of the substrate 2, the end of the skin 3 connected to the fiber bundle B (specifically, the lower edge 3b) does not fold back towards the back side of the substrate 2, but rather remains positioned on the surface of the substrate 2 (see reference). Figure 2 ).

[0069] Further, light from the light source 9 such as an LED is incident on the front end side of the optical fiber bundle B (i.e., the bundled side formed by the sleeve 8 or the like) (see Figure 8 ). Thus, light from the light source 9 is emitted from the surface of the skin member 3, and the appearance or the performance effect is further improved. Further, the light source 9 is held by a holding portion (omitted from illustration) provided on the back surface of the base material 2.

[0070] As shown in Figure 4 , a bundled structure 21A that gathers the optical fiber bundle B exposed from the end portion of the skin member 3 along the back surface of the base material 2 is provided at the end portion of the back surface of the base material 2. This bundled structure 21A is provided with a plurality of (7 in Figure 4 ) along the lower edge portion 2b of the base material 2.

[0071] As shown in Figure 5 and Figure 6 , the bundled structure 21A has a rectangular-shaped standing wall 22 that stands on the back surface of the base material 2. A through-hole 23 of a circular shape that can be penetrated by the optical fiber bundle B is formed in this standing wall 22.

[0072] The standing wall 22 is disposed so as to extend in the direction along the edge portion 2b of the base material 2. This standing wall 22 is disposed separately from the reinforcing rib 14 provided at the lower edge portion 2b of the base material 2 (see Figure 7 (a)).

[0073] The through-hole 23 has an outer diameter (for example, 7 mm) that is larger than the outer diameter (for example, 5 mm) of the sleeve 8. An R face (i.e., a curved face) 24 that guides the insertion of the optical fiber bundle B is formed on the side into which the front end side of the optical fiber bundle B is inserted in the through-hole 23 (see Figure 2 ). This R face 24 is formed over the entire circumference of the through-hole 23.

[0074] Next, the effect of the above-described structure of the ornament 1A will be described. When the skin member 3 is attached to the surface of the base material 2, the optical fiber bundle B (see Figure 8 ) exposed from the end portion of the skin member 3 is folded back toward the back surface side of the base material 2, and the front end side thereof is inserted into the through-hole 23, and the root side Bl of the optical fiber bundle B is penetrated into the through-hole 23. Thus, the optical fiber bundle B is gathered in a rope-like shape with the root side Bl gathered and along the back surface of the base material 2 (see Figure 5 ).

[0075] According to the ornament 1A of the present embodiment, the skin member 3 has the fabric 6 in which the optical fiber 5 is woven as a constituent thread, and the bundled structure 21A that gathers a plurality of optical fibers 5 exposed from the end portion of the skin member 3 along the back surface of the base material 2 is provided at the end portion of the back surface of the base material 2. Thus, the fastening portion 10 that is fastened to the base member 43 that constitutes the door trim 41 can be set at a position on the outer edge side of the back surface of the base material 2 so as to be close to the appearance boundary D2.

[0076] In addition, in the present embodiment, the bundle structure 21A has a standing wall 22 in which a through-hole 23 is formed. Thus, the plurality of optical fibers 5 can be easily gathered by being inserted through the through-hole 23.

[0077] Furthermore, in the present embodiment, a plurality of bundle structures 21A are provided along the lower edge portion 2b of the base material 2. Thus, the plurality of optical fibers 5 exposed from the end portion of the skin member 3 can be divided into groups every prescribed number and gathered by the respective bundle structures 21A.

[0078] Next, another type of the ornament IB will be described, but the same reference numerals are assigned to the substantially same constituent portions as those of the above-described ornament IA and detailed description will be omitted.

[0079] The ornament IB is provided with a bundle structure 21B instead of the above-described bundle structure 21A. As shown in the figure, the bundle structure 21B has a pair of standing walls 32 standing on the back surface of the base material 2 and facing each other. A hook portion 33 is provided on each of the front end sides of the pair of standing walls 32, and the hook portion 33 forms an insertion port 36 through which the root side Bl of the optical fiber bundle B can be inserted between the pair of standing walls 32. Figure 10

[0080] The pair of standing walls 32 each has a thin wall portion 32a connected to the back surface of the base material 2 and a thick wall portion 32b connected at one end side to the thin wall portion 32a and at the other end side to the hook portion 33. In addition, the pair of standing walls 32 are arranged so as to be shifted in positions in a direction orthogonal to the facing direction of each standing wall 32. Furthermore, the pair of standing walls 32 are arranged on the back surface of the base material 2 so as to approach each other as they go toward the front end sides. Furthermore, in each hook portion 33, a curved surface 34 for guiding the insertion of the optical fiber bundle B is formed on the side into which the root side Bl of the optical fiber bundle B is inserted.

[0081] In the present bundle structure 21B, the hook portions 33 are separated from each other by a fingertip operation, and the root side Bl of the optical fiber bundle B is inserted between the hook portions 33 from above each hook portion 33, is inserted between the pair of standing walls 32 and is gathered, whereby the optical fiber bundle B is gathered in a rope-like shape along the back surface of the base material 2. In this gathered state, the hook portions 33 suppress the escape of the optical fiber bundle B. In addition, the insertion of the optical fiber bundle B between the pair of standing walls 32 can be performed without separating the hook portions 33 by a fingertip operation.

[0082] ​According to the present ornament 1B, the same effects as those of the above-described ornament 1A are obtained, and the bundling structure 21B has a pair of standing walls 32, and hook-shaped portions 33 are provided at each of the front end sides of the pair of standing walls 32, so that the plurality of optical fibers 5 can be easily bundled by inserting the plurality of optical fibers 5 from each of the hook-shaped portions 33 between the pair of standing walls 32. Further, with each of the hook-shaped portions 33, the plurality of optical fibers 5 inserted between the pair of standing walls 32 can be prevented from coming out.

[0083] Further, in the present application, the above-described embodiments are not limited, and embodiments in which various changes are made within the scope of the present application according to purposes and uses can be provided. That is, in the above-described embodiments, the ornament 1A, 1B in which the plurality of optical fiber bundles B are provided along the lower edge portion 3b of the skin member 3, and the plurality of bundling structures 21A, 21B are provided along the lower edge portion 2b of the base material 2 is exemplified, but is not limited thereto, and for example, the ornament 1A, 1B in which the plurality of optical fiber bundles B are provided along the upper edge portion 3a of the skin member 3, and the plurality of bundling structures 21A, 21B are provided along the upper edge portion 2a of the base material 2 can be provided. Further, the ornament 1A, 1B in which the plurality of optical fiber bundles B are provided along the upper edge portion 3a and the lower edge portion 3b of the skin member 3, and the plurality of bundling structures 21A, 21B are provided along the upper edge portion 2a and the lower edge portion 2b of the base material 2 can be provided.

[0084] The above-described examples are for the purpose of illustration only and are not to be construed as limiting the present application. The examples of typical embodiments are described to illustrate the present application, but it is understood that the language used in the description and the appended claims are not limited to descriptive and illustrative language but are to be construed as broadly as possible. As described in detail herein, in the embodiments, changes can be made within the scope and spirit of the present application within the scope of the appended claims. Herein, in the detailed description of the present application, specific structures, materials, and embodiments are referred to, but the present application is not intended to be limited to the disclosed matters, but on the contrary, the present application is directed to all functionally equivalent structures, methods, uses within the scope of the appended claims.

[0085] Industrial Applicability

[0086] The present application is widely applied to a technology of bundling a plurality of optical fibers exposed from an end portion of a skin member at an end portion of a back surface of a base material.

Claims

1. An interior trim component comprising a plate-shaped substrate and a skin covering the surface of said substrate, characterized in that, The outer skin has a fabric woven with optical fibers as constituent threads. The back end of the substrate is provided with a bundle structure that brings together a plurality of optical fibers exposed from the end of the skin member in a manner that runs along the back of the substrate.

2. The interior trim component according to claim 1, wherein, The bundling structure has upright walls on the back side of the substrate. A through hole is formed in the vertical wall, through which multiple optical fibers can pass.

3. The interior trim component according to claim 1, wherein, The bundling structure has a pair of upright walls that stand on the back side of the substrate and are opposite to each other. Each of the front ends of the pair of vertical walls is provided with a hook-shaped portion that allows multiple optical fibers to be inserted between the pair of vertical walls.

4. The interior trim according to any one of claims 1 to 3, wherein, The bundled structures are provided in multiple portions along at least one side of the substrate.

5. The interior trim component according to claim 1, wherein, This interior trim is the decorative element that makes up the interior door panel of a vehicle.

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