Wire harness exterior and wire harness with exterior

A flat plate exterior body for wire harnesses addresses space inefficiencies by regulating the path and reducing dead space, enabling flexible and compact wire harness arrangements.

JP7763160B2Active Publication Date: 2025-10-31FURUKAWA ELECTRIC CO LTD +1
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Patent Information

Application Number
JP2022503292
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-02-27
Filing Date
2021-02-17
Publication Date
2025-10-31
Estimated Expiration
2041-02-17

AI Technical Summary

Technical Problem

Existing wire harness routing methods, such as using resin rods or corrugated pipes, struggle with complex shapes and result in increased cross-sectional area, leading to space inefficiencies and dead spaces in vehicles.

Method used

A flat plate exterior body made of resin material is used to regulate the path of the wire harness, reducing dead space by supporting the wire bundle and allowing for flexible, space-saving arrangements.

Benefits of technology

The flat plate exterior body effectively manages wire harness routing, minimizing space requirements and accommodating complex vehicle layouts.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

A purpose of the present invention is to provide a wire harness exterior body and a wire harness (10, 20) with the exterior body, with which it is possible to appropriately restrict the route of the wire harness, and to eliminate dead space and reduce space in a vehicle, etc., in which the wire harness is used. This wire harness exterior body (1, 2, 2a, 2b, 3a, 3b, 3c, 3d, 3e, 3f, 4, 5, 6, 8, 9) has a wire bundle (B1, B5a, B5b, B5c, B5d, B5e, B6, B7, B8) in which a plurality of electric wires are bundled, the exterior body being characterized by being formed from at least one flat member (31g, 32g, 31h, 32h, 33h, 4A, 4B, 6A, 6B, 6C) comprising a resin material, and contacting and supporting one surface of a wire aggregate comprising the wire bundle constituting a wire harness, or a plurality of divided wire bundles (B2, B3, B4) that are further branched from the wire bundle and extended, and the exterior body having flat parts (21, 31a, 31b, 31c, 31d, 31e, 31f, 81, 91) that restrict the route of the wire harness.
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Description

[Technical Field]

[0001] The present invention relates to an exterior body of a wire harness and a wire harness with an exterior body. [Background technology]

[0002] Wire harnesses installed in vehicles and other vehicles are made up of bundles of electrical wires used for power supply and signal communication, combined with connectors and terminals. In order to place these connectors and terminals in appropriate locations inside the vehicle, the routing of the wire harness must be properly regulated.

[0003] Conventionally, the routing of a wire harness has been controlled by bundling electric wires together with a resin rod made of polypropylene or the like, or by passing the wire harness through the internal cavity of a corrugated pipe obtained by extrusion molding or a cylindrical protector obtained by injection molding (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-13106 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when bundling wires with resin rods as described above, it is difficult to deform the resin rod to fit a route with a complex shape, such as a curved shape, and since the cross-sectional area increases by the volume of the resin rod, it is not suitable for application to routes in narrow spaces and may not be able to adequately regulate the route of the wire harness.Furthermore, since corrugated pipes and protectors have a fixed cross-sectional area, dead space is likely to occur inside the corrugated pipe when a three-dimensional shape, such as a cylindrical shape, is flattened, making it difficult to achieve space savings in vehicles in which they are used.

[0006] The present invention has been made in consideration of the above-described circumstances, and aims to provide an outer casing for a wire harness and a wire harness with an outer casing that can appropriately regulate the route of the wire harness and reduce dead space, thereby saving space in a vehicle or the like to which the wire harness is applied. [Means for solving the problem]

[0007] The present inventors have conducted extensive research to solve the above-mentioned problems. As a result, they have found that in an exterior body of a wire harness having an electric wire bundle formed by bundling a plurality of electric wires, the exterior body is formed of at least one flat plate material made of a resin material, and has a flat portion that contacts and supports one surface of the electric wire bundle constituting the wire harness or one surface of an electric wire assembly made of a plurality of divided electric wire bundles branching and extending from the electric wire bundle, thereby regulating the path of the wire harness. This makes it possible to appropriately regulate the path of the wire harness and reduce dead space, thereby achieving space savings in a vehicle or the like to which the wire harness is applied, and has thus completed the present invention. Specifically, the present invention provides the following.

[0008] (1) An exterior body of a wire harness having a bundle of electric wires, The exterior body is formed from at least one flat plate made of a resin material, An exterior body of a wire harness, comprising a flat portion that contacts and supports one surface of the electric wire bundle constituting the wire harness or one surface of an electric wire assembly made up of a plurality of divided electric wire bundles that are further branched and extend from the electric wire bundle, and that regulates the path of the wire harness. (2) The exterior body of the wire harness according to (1) above, wherein the resin material is a foamed resin. (3) The exterior body of the wire harness according to (1) or (2) above, wherein the flat portion is formed of a single flat plate material. (4) The exterior body of the wire harness according to (1) or (2) above, wherein the flat portion is formed by connecting a plurality of flat plate materials. (5) The outer casing of the wire harness according to any one of (1) to (4) above, wherein the flat portion of the outer casing has a width dimension that matches the change in cross-sectional shape of the wire assembly in the longitudinal direction. (6) The exterior body of the wire harness according to any one of (1) to (5) above, wherein the exterior body is configured to be bendable in a thickness direction of the flat portion. (7) The exterior body of the wire harness according to any one of (1) to (6) above, wherein the exterior body has an installation surface to which the electric wire assembly is attached and a surface positioned on a side to clamp the electric wire assembly, and protects the electric wire assembly. (8) a wire harness; An exterior body according to any one of (1) to (7) above, Equipped with The exterior body is formed from at least one flat plate made of a resin material, A wire harness with an exterior body, characterized in that it has a flat portion that contacts and supports one surface of the electric wire bundle that constitutes the wire harness or one surface of an electric wire assembly that is made up of a plurality of divided electric wire bundles that are further branched and extend from the electric wire bundle, and regulates the path of the wire harness. [Effects of the Invention]

[0009] According to the present invention, the route of the wire harness can be appropriately regulated, and dead space can be reduced, thereby saving space in a vehicle or the like to which the wire harness is applied. [Brief explanation of the drawings]

[0010] [Figure 1]FIG. 1( a) is a schematic plan view of the exterior body of a wire harness according to one embodiment of the present invention, viewed from the side of the surface of the exterior body where one surface of the wire assembly is in contact and supported, and FIG. 1( b) is a schematic plan view of the exterior body viewed from the side opposite to the surface where one surface of the wire assembly is in contact and supported. [Figure 2] FIG. 2(a) is a perspective view of an outer casing of a wire harness according to one embodiment of the present invention, showing a state in which one surface of an electric wire assembly of the wire harness is contact-supported, and FIG. 2(b) is a cross-sectional view taken along line AA in FIG. 2(a), and FIG. 2(c) is a cross-sectional view taken along line BB in FIG. 2(a). [Figure 3] FIG. 3(a) is a perspective view of an exterior body formed from a single flat plate material, and FIG. 3(b) is a perspective view of an exterior body formed by dividing the flat plate material into trapezoidal flat plates and rectangular flat plates and connecting these flat plate materials together. [Figure 4] FIG. 4(a) is a schematic plan view of an exterior body of a wire harness according to another embodiment of the present invention, and FIG. 4(b) is a schematic plan view of the wire harness in the case where one surface of the wire assembly is contact-supported. [Figure 5] FIG. 5(a) is a schematic plan view of an exterior body of a wire harness according to another embodiment of the present invention, and FIG. 5(b) is a schematic plan view of the wire harness in the case where one surface of the wire assembly is contact-supported. [Figure 6] FIG. 6(a) is a schematic plan view of an exterior body of a wire harness according to another embodiment of the present invention, and FIG. 6(b) is a schematic plan view of the wire harness in the case where one surface of the wire assembly is contact-supported. [Figure 7] FIG. 7(a) is a schematic plan view of an exterior body of a wire harness according to another embodiment of the present invention, and FIG. 7(b) is a schematic plan view of the wire harness in the case where one surface of the wire assembly is contact-supported. [Figure 8] FIG. 8(a) is a schematic plan view of an exterior body of a wire harness according to another embodiment of the present invention, and FIG. 8(b) is a schematic plan view of the wire harness in the case where one surface of the wire assembly is contact-supported. [Figure 9]FIG. 9(a) is a schematic plan view of an exterior body of a wire harness according to another embodiment of the present invention, and FIG. 9(b) is a schematic plan view of the wire harness in the case where one surface of the wire assembly is contact-supported. [Figure 10] FIG. 10 is a schematic perspective view of an exterior body of a wire harness according to another embodiment of the present invention. [Figure 11] FIG. 10 is a schematic perspective view of an exterior body of a wire harness according to another embodiment of the present invention. [Figure 12] FIG. 10 is a schematic perspective view of an exterior body of a wire harness according to another embodiment of the present invention. [Figure 13] FIG. 13(a) is a schematic perspective view of an exterior body of a wire harness according to another embodiment of the present invention, and FIG. 13(b) is a schematic perspective view of the wire harness in which one surface of the wire assembly is contact-supported. [Figure 14] FIG. 14(a) is a schematic perspective view of an exterior body of a wire harness according to another embodiment of the present invention, and FIG. 14(b) is a schematic perspective view of the wire harness in which one surface of the wire assembly is contact-supported. [Figure 15] 1 is a schematic perspective view showing an example of installation of an exterior-equipped wire harness according to an embodiment of the present invention on an installation surface. [Figure 16] 1 is a schematic perspective view of a wire harness with an exterior body according to an embodiment of the present invention. [Figure 17] FIG. 10 is a schematic perspective view for explaining a method of regulating the path of a wire bundle B8 of a wire harness by combining exterior bodies according to a plurality of embodiments of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] Preferred embodiments of the present invention will be described in detail below, but the present invention is not limited to the following embodiments.

[0012] 1. Wire harness exterior The outer casing of a wire harness of the present invention is an outer casing of a wire harness having an electric wire bundle formed by bundling a plurality of electric wires, characterized in that the outer casing is formed of at least one flat plate material made of a resin material and has a flat portion that contacts and supports one side of the electric wire bundle that constitutes the wire harness or one side of an electric wire assembly made up of a plurality of divided electric wire bundles that further branch off and extend from the electric wire bundle, thereby regulating the path of the wire harness.

[0013] The following detailed description will be given with reference to the drawings. Fig. 1 shows an exterior body of a wire harness according to one embodiment of the present invention, with one surface of an electric wire assembly of the wire harness being contact-supported, with Fig. 1(a) being a schematic plan view of the exterior body as viewed from the side where one surface of the electric wire assembly is contact-supported, and Fig. 1(b) being a schematic plan view of the exterior body as viewed from the side opposite to the side where one surface of the electric wire assembly is contact-supported. The exterior body 1 of this wire harness is an exterior body of a wire harness having an electric wire bundle B1 in which multiple electric wires L1, L2, L3, L4, L5, and L6 are bundled together. Here, the exterior body 1 is formed of at least one flat plate material made of a resin material and has a flat portion 11 that contact-supports one surface of the electric wire assembly made of the electric wire bundle B1 that constitutes the wire harness and regulates the path of the wire harness. For convenience, FIG. 1 shows an example in which six wire harnesses are arranged on the exterior body 1, but typically, many more wire harnesses are arranged in a densely packed bundle.

[0014] In the exterior body 1 of such a wire harness, the flat surface of the exterior body 1 is in contact with and supported by one surface of the electric wire assembly, so the routing of the wire harness is tightly restricted. Furthermore, because the exterior body 1 is made of a two-dimensional flat plate material, dead space is less likely to occur even when flattened, compared to, for example, a corrugated pipe or a cylindrical protector, which have a three-dimensional structure. Therefore, by using this exterior body 1 to arrange a wire harness inside a vehicle, etc., space can be saved, resulting in, for example, a smaller vehicle and increased interior space.

[0015] The resin material constituting the exterior body 1 is not particularly limited as long as it is plastically deformable and can be shaped by melting or dissolving and solidifying. The resin material may be either a thermoplastic resin or a thermosetting resin. Specifically, the resin material may be one or more of polyethylene, polypropylene, polyvinyl chloride, polystyrene, AS resin, ABS resin, polyethylene terephthalate, methacrylic resin, polyvinyl alcohol, vinylidene chloride resin, polycarbonate, polyamide, polyimide, acetal resin, polybutylene terephthalate, fluororesin, phenolic resin, melamine resin, urea resin, polyurethane, epoxy resin, unsaturated polyester resin, etc. From the viewpoint of weight reduction, the resin material is preferably a foamed resin.

[0016] Furthermore, the resin material constituting the exterior body 1 is not limited to foamed resin, and is preferably lightweight. From this perspective, the density of the resin material is not particularly limited, but is preferably 1000 kg / m 3 Preferably, it is 700 kg / m or less. 3 More preferably, it is 500 kg / m or less. 3 It is more preferable that the density of the resin material is 200 kg / m or less. 3 It may be more than that.

[0017] When a foamed resin is used as the resin material, a resin foam sheet can be punched into a shape required for contacting and supporting the wire harness on one side of the wire assembly, and used as the exterior body 1. When manufacturing the exterior body 1 by punching in this way, for example, an inexpensive Thomson die can be used, and by using dies of a wide variety of shapes, flat plate materials of a wide variety of shapes can be manufactured at low cost.

[0018] The resin material may be coated with various additives that are typically added to resin materials depending on the application. The additives may include, but are not limited to, one or more of fillers, antioxidants, stabilizers, metal deactivators, UV absorbers, light stabilizers, plasticizers, colorants, flame retardants, nucleating agents, compatibilizers, clarifying agents, antistatic agents, lubricants, etc.

[0019] The thickness of the exterior body 1 is not particularly limited, but is preferably 0.5 mm to 5.0 mm, and more preferably 0.5 mm to 3.0 mm.

[0020] The method for supporting and contacting the exterior body 1 and one surface of the wire assembly is not particularly limited, and for example, they can be fastened together by wrapping tapes T1 to T3 around them. Alternatively, a cable tie or adhesive can be used to support and contact the exterior body 1 and one surface of the wire assembly.

[0021] The exterior body 1 is preferably configured to be bendable in the thickness direction of the flat portion 11 (the direction perpendicular to the plane of the paper in FIG. 1). By making the exterior body 1 bendable in this way, it can flexibly accommodate the complex wiring paths of a vehicle, and therefore it is easy to process and to attach the wire harness (by taping, etc.).

[0022] Fig. 2 is a diagram showing an exterior body of a wire harness according to one embodiment of the present invention, in a state in which one surface of an electric wire assembly of the wire harness is contact-supported. Fig. 2(a) is a schematic perspective view of the exterior body. Fig. 2(b) is a cross-sectional view taken along line AA. Fig. 2(c) is a cross-sectional view taken along line BB. The exterior body 2 of this wire harness is an exterior body of a wire harness including a divided electric wire bundle B2 bundling a plurality of electric wires L7 and L8, a divided electric wire bundle B3 bundling a plurality of electric wires L9 and L10, and a divided electric wire bundle B4 bundling a plurality of electric wires L11 and L12. The exterior body 2 is formed of at least one flat plate material made of a resin material and has a flat portion 21 that contacts and supports one surface of the electric wire assembly including the divided electric wire bundles B2, B3, and B4 that branch off and extend from the electric wire bundle formed by bundling the plurality of electric wires L7 to L12, thereby regulating the path of the wire harness. 2 shows an example in which six electric wires are arranged on the exterior body 2, but the number of electric wires is not limited to six. Also, while Fig. 2 shows an example in which the electric wires are arranged in divided electric wire bundles B2, B3, and B4, the configuration is not limited to this, and the electric wires may be arranged side by side at equal intervals in the planar direction.

[0023] The flat portion 21 of the exterior housing 2 preferably has a width dimension that matches the change in the cross-sectional shape of the electric wire assembly in the longitudinal direction. For example, in the exterior housing 2, the electric wires L7 to L12 are grouped into six on the right side of the drawing, but branch into the divided electric wire bundles B2, B3, and B4 on the left side of the drawing. As the divided electric wire bundles B2, B3, and B4 branch in this way, the cross-sectional shape of the electric wire assembly in the longitudinal direction increases in the width direction. In this way, it is more preferable to change the width dimension of the flat portion 21 of the exterior housing 2 so that it also increases in accordance with the cross-sectional shape of the electric wire assembly. This makes it easier to guide the restriction in the branching directions of the electric wire bundles B2, B3, and B4. The cross-sectional shape of the electric wire assembly in the longitudinal direction can be the shape of a cross section perpendicular to the extension direction of the electric wire assembly.

[0024] The flat portion 21 of the exterior body 2 may be formed from a single flat plate material. On the other hand, the flat portion 21 of the exterior body 2 may be formed by connecting multiple flat plate materials. Here, FIG. 3(a) is a perspective view of an exterior body 2a formed from a single flat plate material. Also, FIG. 3(b) is a perspective view of an exterior body 2b formed by connecting multiple flat plate materials, more specifically, trapezoidal flat plate materials and rectangular flat plate materials. Note that in the exterior body 2b shown in FIG. 3(b), the flat portions 21b, 22b of one exterior body 2b are formed by bonding multiple flat plate materials together.

[0025] As shown in FIG. 3(b), in an embodiment of the present invention, flat plates of various basic shapes, such as trapezoidal flat plates, rectangular flat plates, flat plates of special shapes other than square, and polygonal flat plates with angles greater than 180°, are divided into parts to form flat plate materials, and parts made of two or more flat plate materials can be appropriately combined to form an exterior packaging material. By dividing the parts into parts in this way, a wide variety of exterior packaging materials in various shapes can be formed depending on the application, and the yield rate can be improved when performing punching processes, etc. Furthermore, because a variety of shapes can be produced by combining such relatively simple shapes, various types of exterior packaging bodies are not required, eliminating the need for various punching dies (Thomson dies).

[0026] On the other hand, from the viewpoint of the flexibility mentioned above, it is preferable to form the exterior body 2a from a single flat plate material, as in the exterior body 2a of FIG. 3(a).

[0027] The shape of the exterior body can be designed appropriately depending on the branching direction of the electric wire bundle and the space to be arranged. Modified examples of the exterior body of the present invention will be specifically described below.

[0028] 4 to 9, (a) is a schematic plan view of an exterior body of a wire harness according to another embodiment of the present invention, and (b) is a schematic plan view of the wire harness in the case where one surface of the electric wire assembly is supported in contact with the exterior body. Note that the exterior bodies of the wire harnesses shown in Figs. 4 to 9 are all flat.

[0029] 4 is formed from a single flat plate material and has a T-shaped flat portion 31a. A bundle of electric wires B5a branches off in two directions, horizontally to the left and right, from the bottom of the drawing.

[0030] 5 is formed from a single flat plate material and has a Y-shaped flat portion 31b. A bundle of electric wires B5b branches in two directions, toward the upper left and upper right, from the bottom of the page.

[0031] 6 is formed from a single flat plate material and has an X-shaped flat portion 31c. A bundle of electric wires B5c branches in two directions, from the lower left and lower right directions of the page to the upper left and upper right directions, respectively.

[0032] 7 is formed from a single flat plate material and has a cross-shaped flat portion 31d. A bundle of electric wires B5d branches in two directions, upward and downward, from the left and right sides of the page.

[0033] 8 is formed from a single flat plate material and has a K-shaped flat portion 31e. A bundle of electric wires B5e branches in two directions, to the upper right and to the lower right, from the upper and lower sides of the paper, respectively.

[0034] 9 is formed from a single flat plate material and has a flat portion 31f shaped to branch in three directions from the bottom to the top left, the top (vertical) direction, and the top right. The electric wire bundle B5f branches along this flat portion in three directions from the bottom to the top left, the top (vertical) direction, and the top right.

[0035] The exterior body 3f of the wire harness shown in FIG. 9 can be used, similarly to the exterior body 3 of the wire harness shown in FIG. 2, to divide one bundle of electric wires into multiple (three in both figures) divided bundles of electric wires or to combine multiple divided bundles of electric wires into one bundle of electric wires. When branching in the same manner, the exterior body 3f of the wire harness shown in FIG. 9 allows the electric wire bundle to be aligned along the branching portion of the exterior body 3f of the wire harness compared to the exterior body 3 of the wire harness shown in FIG. 2, and each branching portion can be secured with tape, etc., so that the branching direction can be more specifically controlled. On the other hand, the exterior body 3 of the wire harness shown in FIG. 2 has a larger area, which reduces the possibility of the electric wire bundle being subjected to external impacts, etc., and therefore can provide a greater effect of preventing external impacts, etc.

[0036] As described above, the exterior material can be formed by dividing the basic shape of the member into parts and combining two or more parts as appropriate. An example of this will be described below with reference to the drawings.

[0037] For example, FIGS. 10 to 12 are each a schematic perspective view of an exterior body of a wire harness according to another embodiment of the present invention.

[0038] The outer casing 3g of the wire harness shown in Figure 10 is formed from two rectangular flat plate materials 31g and 32g, and has a cross-shaped flat portion similar to the flat portion 31d of the outer casing 3d of the wire harness shown in Figure 7.

[0039] The outer casing 3h of the wire harness shown in Figure 11 is formed from three rectangular flat plate materials 31h, 32h, and 33h, and has a flat surface similar to the flat surface 31f of the outer casing 3f of the wire harness shown in Figure 9.

[0040] An exterior body 3i of the wire harness shown in FIG. 12 is formed from one rectangular flat plate material 31i and trapezoidal flat plate materials 32i and 33i.

[0041] The outer casings of the wire harnesses described above are all flat in shape. The outer casings of the wire harnesses are preferably flat in shape in order to regulate the path of the wire harness and to significantly improve space saving and flexibility.

[0042] 13 and 14, (a) is a schematic perspective view of an exterior body of a wire harness according to another embodiment of the present invention, and (b) is a schematic perspective view of the wire harness in which one surface of the electric wire assembly is contact-supported.

[0043] For example, as shown in FIG. 13, an exterior body 4 may be formed by joining two rectangular flat plate materials 4A and 4B together at the ends of their long sides perpendicularly.

[0044] As shown in FIG. 14, an example of an exterior body 5 is one in which elongated rectangular flat plate materials 5B and 5C are joined perpendicularly to both ends of the long side of a single rectangular flat plate material 5A.

[0045] Such non-flat exterior bodies are effective in preventing contact with other objects from multiple directions, for example.

[0046] 2. Wire harness with exterior body A wire harness with an exterior body according to this embodiment includes a wire harness and the above-described exterior body, and the exterior body is formed of at least one flat plate made of a resin material and has a flat portion that contacts and supports one surface of an electric wire bundle constituting the wire harness or an electric wire assembly made up of a plurality of divided electric wire bundles branching out and extending from the electric wire bundle, thereby regulating the path of the wire harness.

[0047] The exterior body may have a mounting surface to which the wire assembly is attached and a surface positioned on the side that clamps the wire assembly, and may protect the wire assembly.

[0048] Fig. 15 is a schematic perspective view showing an example of installation of an exterior-equipped wire harness according to one embodiment of the present invention on an installation surface. The exterior body 6 shown in Fig. 15 has an installation surface 71 on which the electric wire assembly B6 is attached, as well as a surface positioned on the side that clamps the electric wire assembly B6, thereby protecting the electric wire assembly B6. Here, the installation surface 71 on which the electric wire assembly B6 is attached can be, for example, an inner wall inside a vehicle.

[0049] Also, the wire assembly of the wire harness may be sandwiched between two (unjoined) exterior bodies. Fig. 16 is a schematic perspective view of a wire harness with an exterior body according to one embodiment of the present invention. In the wire harness 20 with an exterior body shown in Fig. 16, the wire bundle B7 of the wire harness is sandwiched between two exterior bodies 8, 9 arranged parallel to each other with flat portions 81, 91 facing each other. In this case, it is sufficient that one surface of the wire bundle B7 is supported in contact with at least one of the flat portions 81, 91, and the wire bundle B7 may be supported in contact with both surfaces.

[0050] One method for arranging the wire assembly of the wire harness is to support one surface of the wire assembly in contact with a flat surface of the exterior body, and specific examples are shown in FIGS. 1 to 11.

[0051] In an actual vehicle, the electric wire assembly of the wire harness is arranged three-dimensionally in each direction. The exterior body may also be a combination of the above-described embodiments to regulate the path of the electric wire assembly of the wire harness in a required shape. Fig. 17 is a schematic perspective view for explaining a method of regulating the path of the electric wire bundle B8 of the wire harness by combining the exterior bodies of the multiple embodiments of the present invention. In the embodiment of Fig. 17, the electric wire bundle B8 is divided into three by the exterior body 2, and the divided electric wire bundle B8 is arranged in each of three exterior bodies 4 arranged along the vertical direction of the page. [Explanation of symbols]

[0052] 1,2,2a,2b,3a,3b,3c,3d,3e,3f,4,5,6,8,9 Exterior body 7 Wall 10,20 Exterior body cover 21,31a,31b,31c,31d,31e,31f,81,91 Planar section 31g, 32g, 31h, 32h, 33h, 4A, 4B, 6A, 6B, 6C Flat sheet materials B1, B5a, B5b, B5c, B5d, B5e, B6, B7, B8 Wire harnesses B2, B3, B4 are used to divide wire harnesses. L1~L12 wires T1~T6 テープ

Claims

1. An exterior body of a wire harness having an electric wire bundle in which a plurality of electric wires are bundled, The exterior body is formed from at least one flat plate made of a resin material, a flat surface portion that contacts and supports one surface of an electric wire assembly made up of a plurality of divided electric wire bundles that are further branched and extend from the electric wire bundle, and that regulates the path of the wire harness; the planar portion is the entire surface of one surface of the exterior body, the plurality of electric wires have a portion having a bundled shape and a portion branching into the divided electric wire bundle, the planar portion has a width dimension that corresponds to a change in the cross-sectional shape of the electric wire assembly in the longitudinal direction, and as the divided electric wire bundles branch, the cross-sectional shape of the electric wire assembly in the longitudinal direction becomes larger in the width direction; The outer casing of the wire harness is characterized in that the outer casing and the wire bundle are fastened together with a tape that is wound directly only around the outer casing and the portion of the wire bundle having a unified shape, and a tape that is wound directly only around the outer casing and the divided wire bundle, to form a wire harness with an outer casing, and the tape is wound around the outer casing and the divided wire bundle, respectively.

2. The exterior body of the wire harness according to claim 1 , wherein the resin material is a foamed resin.

3. The planar portion is formed from a single flat plate material, a flat surface portion formed of a single punched flat plate material that contacts and supports one surface of an electric wire assembly made up of a plurality of divided electric wire bundles that are further branched and extend from the electric wire bundle, thereby regulating the path of the wire harness; the plurality of electric wires have a portion having a bundled shape and a portion branching into the divided electric wire bundle, the planar portion has a width dimension that corresponds to a change in the cross-sectional shape of the electric wire assembly in the longitudinal direction, and as the divided electric wire bundles branch, the cross-sectional shape of the electric wire assembly in the longitudinal direction becomes larger in the width direction; 3. The wire harness according to claim 1, wherein the outer casing and the wire bundle are fastened together with a tape that is wound directly around only the outer casing and the portion of the wire bundle having a unified shape, and a tape that is wound directly around only the outer casing and the divided wire bundle, to form a wire harness with an outer casing, and the tape is wound around the outer casing and the divided wire bundle, respectively.

4. The exterior body of the wire harness according to claim 1 or 2, wherein the flat portion is formed by connecting a plurality of flat plate materials.

5. The exterior body of the wire harness according to claim 1 , wherein the exterior body is configured to be bendable in a thickness direction of the flat portion.

6. The exterior body of the wire harness according to claim 1 , wherein the exterior body has an installation surface to which the wire assembly is attached and a surface positioned on a side that clamps the wire assembly, and protects the wire assembly.

7. Wire harness and The exterior body according to any one of claims 1 to 6; Equipped with The exterior body is formed from at least one flat plate made of a resin material, A wire harness with an exterior body, characterized in that it has a flat portion that contacts and supports one surface of an electric wire assembly made up of a plurality of divided electric wire bundles that further branch off and extend from the electric wire bundle, and that regulates the path of the wire harness.

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