Wiring member and manufacturing method of wiring member

Abstract

To provide a technique capable of maintaining a flat wiring member in a bending state without using a shape maintenance member different from a sheet member.SOLUTION: A wiring member 10 includes a first wiring body 20A, a second wiring body 20B and an interlayer fixing part 36. The interlayer fixing part maintains a lamination state by fixing the first wiring body and the second wiring body. The first wiring body includes a first linear transmission member 22A and a first sheet member 30A. The second wiring body includes a second linear transmission member 22B and a second sheet member 30B. The first wiring body and the second wiring body are laminated so that the first linear transmission member is positioned between the first sheet member and the second sheet member. The first wiring body and the second wiring body are provided with a bending part 50 bending in a lamination direction. The interlayer fixing part fixes the first sheet member and the second sheet member so as to maintain a bending state of the bending part.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates to a wiring member and a method for manufacturing the wiring member. [Background technology]

[0002] Patent Document 1 discloses a technology for maintaining a flat wiring member, which includes a plurality of linear transmission members and a sheet member that maintains the plurality of linear transmission members in a flat state, in a bent state using a shape maintaining member. The shape maintaining member is a member provided separately from the sheet member and formed into a shape corresponding to the bent shape of the wiring member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-204742 Summary of the Invention [Problem to be solved by the invention]

[0004] It is desired to be able to maintain a flat wiring member in a bent state without using a shape maintaining member separate from the sheet member.

[0005] Therefore, an object of the present invention is to provide a technique that can maintain a flat wiring member in a bent state without using a shape maintaining member separate from the sheet member. [Means for solving the problem]

[0006] The wiring member of the present disclosure includes a first wiring body, a second wiring body stacked on the first wiring body along the stacking direction, and an interlayer fixing portion that fixes the first wiring body and the second wiring body in a stacked state, wherein the first wiring body includes a first linear transmission member and a first sheet member to which the first linear transmission member is fixed, and the second wiring body includes a second linear transmission member and a second sheet member to which the second linear transmission member is fixed, the first wiring body and the second wiring body are stacked so that the first linear transmission member is located between the first sheet member and the second sheet member, the first wiring body and the second wiring body have bending portions that bend in the stacking direction, and the interlayer fixing portion fixes the first sheet member and the second sheet member to maintain the bent state of the bending portion. [Effects of the Invention]

[0007] According to the present disclosure, a flat wiring member can be maintained in a bent state without using a shape maintaining member separate from the sheet member. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a wiring member and an object to be arranged thereon according to the first embodiment. [Figure 2] FIG. 2 is a plan view showing the wiring member according to the first embodiment. [Figure 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. [Figure 4] FIG. 4 is a schematic side view showing the wiring member according to the first embodiment. [Figure 5] FIG. 5 is an exploded plan view showing the wiring member according to the first embodiment. [Figure 6] FIG. 6 is a diagram showing how the wiring member is manufactured. [Figure 7] FIG. 7 is a side view showing a wiring member according to a first modified example. [Figure 8] FIG. 8 is an exploded plan view showing a wiring member according to a second modified example. [Figure 9] FIG. 9 is a cross-sectional view showing a wiring member according to a second modified example. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described.

[0010] The wiring member of the present disclosure is as follows.

[0011] (1) A wiring member comprising: a first wiring body; a second wiring body stacked on the first wiring body along a stacking direction; and an interlayer fixing portion that fixes the first wiring body and the second wiring body in a stacked state, wherein the first wiring body includes a first linear transmission member and a first sheet member to which the first linear transmission member is fixed; the second wiring body includes a second linear transmission member and a second sheet member to which the second linear transmission member is fixed; the first wiring body and the second wiring body are stacked so that the first linear transmission member is located between the first sheet member and the second sheet member; the first wiring body and the second wiring body have bending portions that bend in the stacking direction; and the interlayer fixing portion fixes the first sheet member and the second sheet member to maintain the bent state of the bending portion.

[0012] According to the wiring member (1), the interlayer fixing portion that fixes the first sheet member and the second sheet member in a stacked state maintains the bent state of the bent portion, so that the flat wiring member can be maintained in a bent state without using a shape-retaining member separate from the sheet members.

[0013] (2) In the wiring member of (1), the interlayer fixing portion may include a first interlayer fixing portion and a second interlayer fixing portion that are spaced apart from each other along the extension direction of the first linear transmission member, the first interlayer fixing portion being located on one side of the bent portion along the extension direction, and the second interlayer fixing portion being located on the other side of the bent portion along the extension direction, a length from the first interlayer fixing portion to the second interlayer fixing portion of the first sheet member and a length from the first interlayer fixing portion to the second interlayer fixing portion of the second sheet member being different from each other, and the first sheet member and the second sheet member being spaced apart from each other in the stacking direction between the first interlayer fixing portion and the second interlayer fixing portion. As a result, when the bent portion between the first interlayer fixing portion and the second interlayer fixing portion attempts to deform linearly, the shorter of the first sheet member and the second sheet member becomes taut or the longer sheet member is unable to bend in the stacking direction, thereby suppressing the linear deformation.

[0014] (3) In the wiring member of (2), the first sheet member and the second sheet member may form a triangular shape in side view between the first interlayer fixing portion and the second interlayer fixing portion, which makes it easier to create a relationship between the first sheet member and the second sheet member between the first interlayer fixing portion and the second interlayer fixing portion.

[0015] (4) In the wiring member of (2) or (3), the bent portion between the first interlayer fixing portion and the second interlayer fixing portion may be an offset bent portion in which the sheet member located on the inner periphery of the first sheet member and the sheet member located on the outer periphery of the second sheet member are interchanged, thereby maintaining the bent state of the offset bent portion by the first interlayer fixing portion and the second interlayer fixing portion on both sides of the offset bent portion.

[0016] (5) In the wiring member of (2) or (3), the bent portion between the first interlayer fixing portion and the second interlayer fixing portion may be a single bent portion in which the sheet member located on the inner periphery of the first sheet member and the sheet member located on the outer periphery of the second sheet member are not interchanged, thereby maintaining the bent state of the single bent portion by the first interlayer fixing portion and the second interlayer fixing portion on both sides of the single bent portion.

[0017] (6) The wiring member according to any one of (1) to (5) may further include a third wiring body laminated between the first wiring body and the second wiring body, whereby the wiring member further laminated with the third wiring body is maintained in a bent state by the interlayer fixing portion between the first sheet member and the second sheet member.

[0018] (7) Furthermore, the method for manufacturing a wiring member disclosed herein is a method for manufacturing a wiring member including a first wiring body including a first linear transmission member and a first sheet member to which the first linear transmission member is fixed, and a second wiring body including a second linear transmission member and a second sheet member to which the second linear transmission member is fixed, the method comprising: a laminating process for laminating the first wiring body and the second wiring body so that the first linear transmission member is positioned between the first sheet member and the second sheet member; a bending process for bending the first wiring body and the second wiring body in the laminating direction of the first wiring body and the second wiring body; and a fixing process for fixing the first sheet member and the second sheet member after the laminating process and the bending process.

[0019] According to the method for manufacturing a wiring member of (7), the fixing step is performed after the laminating step and the bending step, so that the interlayer fixing portion between the first sheet member and the second sheet member can maintain the bent state of the bent portion, thereby making it possible to maintain the flat wiring member in the bent state without using a shape maintaining member separate from the sheet members.

[0020] [Details of the embodiments of the present disclosure] Specific examples of wiring members according to the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0021] [Embodiment 1] The following describes the wiring member according to embodiment 1. Fig. 1 is a perspective view showing a wiring member 10 according to embodiment 1 and an object 100 to which the wiring member 10 is to be arranged.

[0022] The target 100 is, for example, a vehicle. The target 100 has a curved surface 102. FIG. 1 shows an example in which the target 100 has a first surface 103, a second surface 104, and a third surface 105. The second surface 104 is higher than the first surface 103. The third surface 105 connects the first surface 103 and the second surface 104. In this case, the target 100 has a concave-convex surface as the curved surface 102, which is made up of the first surface 103, the second surface 104, and the third surface 105. This concave-convex surface has a concave surface made up of the first surface 103 and the third surface 105, and a convex surface made up of the second surface 104 and the third surface 105. The uneven surface can also be said to have an offset bent shape in which the first surface 103 and the second surface 104 are offset, or a stepped shape in which the first surface 103 and the second surface 104 are connected by a step. Also, each of the concave and convex surfaces can be said to have an L-shaped bent shape.

[0023] The placement target 100 has two bending surfaces 102. The wiring member 10 is placed along the two bending surfaces 102. On one bending surface 102, the wiring member 10 is placed along the second surface 104 from the first surface 103 via the third surface 105. On the other bending surface 102, the wiring member 10 is placed along the first surface 103 from the second surface 104 via the third surface 105.

[0024] The portion of the wiring member 10 that is arranged along the bending surface 102 is called the bending portion 50. The bending portion 50 is bent into a shape that corresponds to the bending surface 102. The shape of the bending portion 50 is formed in advance in the wiring member 10. Therefore, when placing the wiring member 10 on the placement target 100, it is sufficient to place the bending portion 50 on the bending surface 102. This makes the placement work easier than when a straight wiring member 10 is bent and placed on the spot.

[0025] It should be noted that the placement target 100 does not need to have two bending surfaces 102, but may have only one bending surface 102. Also, the bending surface 102 does not need to have both a concave surface and a convex surface. The bending surface 102 may have only a concave surface or only a convex surface.

[0026] The wiring member 10 having the bent portion 50 will be described in detail below with further reference to Figs. 2 to 6. Fig. 2 is a plan view showing the wiring member 10 according to the first embodiment. Fig. 3 is a cross-sectional view taken along line III-III in Fig. 2. Fig. 4 is a schematic side view showing the wiring member 10 according to the first embodiment. Fig. 5 is an exploded plan view showing the wiring member 10 according to the first embodiment. Fig. 6 is a diagram showing how the wiring member 10 is manufactured.

[0027] The wiring member 10 includes a plurality of wiring bodies 20 and an interlayer fixing portion 36 that fixes the plurality of wiring bodies 20 in a stacked state. The number of stacked wiring bodies 20 in the wiring member 10 is not particularly limited and may be two, or may be three or more. In the present embodiment, an example in which the number of stacked wiring bodies 20 in the wiring member 10 is two will be described. Therefore, the wiring member 10 has a two-layer structure in which two wiring bodies 20 are stacked. One of the two wiring bodies 20, wiring body 20A, is an example of a first wiring body 20A, and the other wiring body 20B is an example of a second wiring body 20B.

[0028] Each of the multiple wiring bodies 20 includes multiple linear transmission members 22 and a sheet member 30 that maintains the multiple linear transmission members 22 in a parallel state. Hereinafter, when it is necessary to distinguish between the linear transmission members 22 and the sheet members 30 of the two wiring bodies 20A and 20B, the linear transmission members 22 and the sheet members 30 may be referred to by using the same alphabet as the wiring body 20 to which they belong. For example, the linear transmission member 22 and the sheet member 30 of the wiring body 20A may be referred to as the linear transmission member 22A and the sheet member 30A. The linear transmission member 22A and the sheet member 30A are an example of the first linear transmission member 22A and the first sheet member 30A, and the linear transmission member 22B and the sheet member 30B are an example of the second linear transmission member 22B and the second sheet member 30B.

[0029] The linear transmission member 22 is a linear member that transmits electricity, light, or the like. It is assumed that the linear transmission member 22 is a member that connects components in a vehicle. The linear transmission member 22 includes a transmission line body 23 and a coating layer 24. The transmission line body 23 is a transmission path that transmits electricity or light. For example, if the linear transmission member 22 is an electric wire, the transmission line body 23 is a conductor core wire. The conductor core wire is composed of one or more element wires. The element wires are formed from copper, copper alloy, aluminum, aluminum alloy, or the like. Furthermore, if the linear transmission member 22 is an optical fiber, the transmission line body 23 is a core and clad. The coating layer 24 is a layer that covers the transmission line body 23. For example, if the linear transmission member 22 is an electric wire, the coating layer 24 is an insulating coating. The coating layer 24 is composed of, for example, a resin material. The resin material that constitutes the coating layer 24 is not particularly limited and can be set as appropriate. The linear transmission member 22 may be, for example, a general electric wire having a core wire and a coating layer surrounding the core wire, or may be a shielded wire, a twisted wire, an enameled wire, a nichrome wire, an optical fiber, or the like.

[0030] The linear transmission member 22 that transmits electricity may be any of various signal lines and power lines. A part of the linear transmission member 22 that transmits electricity may be used as an antenna, a coil, or the like that sends or receives a signal or power to or from space.

[0031] Furthermore, the linear transmission member 22 may be a single-core wire. A single-core wire is a single linear object. A single-core wire is a linear transmission member with one transmission path. The linear transmission member 22 may be a multi-core wire. A multi-core wire is a composite of multiple linear objects. A multi-core wire is a linear transmission member with multiple transmission paths. A multi-core wire may be, for example, a twisted wire, a cable in which multiple linear objects are assembled and covered with a sheath, or the like.

[0032] For example, a connector 40 is provided at the end of the linear transmission member 22. The connector 40 includes a connector housing made of insulating resin and connector terminals as transmission members. The end of the linear transmission member 22 is connected to the connector terminals. The connector housing holds multiple connector terminals, thereby maintaining the multiple connector terminals in a predetermined arrangement. The connector 40 is connected to a mating connector provided on a mating part of the wiring member 10.

[0033] The sheet member 30 is not particularly limited in material, structure, etc. as long as it can fix the linear transmission member 22. Regarding the material constituting the sheet member 30, here, the sheet member 30 is formed of a resin material. The material constituting the sheet member 30 may be a material other than resin, such as a metal or an inorganic substance.

[0034] Here, an example will be described in which the sheet member 30 has a two-layer structure including a first layer and a second layer. The structure of the sheet member 30 may be a one-layer structure or a multi-layer structure having three or more layers.

[0035] The first layer is a fusion layer. The linear transmission member 22 is fused and fixed to the fusion layer. The fusion layer contains a resin material, preferably a thermoplastic resin material. The resin material of the fusion layer softens and is fused to the fusion partner. The type of resin material is not particularly limited, and polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), etc. can be used.

[0036] The structure of the fusion layer is not particularly limited. For example, the fusion layer may be a sheet having a uniform solid cross section (also called a non-foamed sheet or solid sheet). For example, the fusion layer may be a foamed sheet or the like. For example, the fusion layer may be a fibrous sheet such as a knitted fabric, a woven fabric, or a non-woven fabric. One surface of the first layer is one main surface of the sheet member 30.

[0037] The second layer is an additional layer. The additional layer may be formed of a different material or have a different structure from the fusion layer. The additional layer enhances the functionality of the fusion layer or adds functionality not present in the fusion layer to the sheet member 30. The material constituting the second layer may be a metal, an inorganic material, etc. in addition to the materials described for the fusion layer above. The structure of the second layer may be any of the structures described for the fusion layer above. One surface of the second layer is the other main surface of the sheet member 30.

[0038] The first and second layers are fixed together while the other surface of the first layer and the other surface of the second layer are in contact with each other. The manner in which the first and second layers are fixed together is not particularly limited, but they may be fixed together by fusion or adhesion. For example, if at least one of the first and second layers is a sheet with voids on its surface, such as a fiber sheet or a foam sheet, a resin material or adhesive can fill the voids and fix the layers together. This produces a so-called anchor effect, firmly fixing the first and second layers together.

[0039] Here, the first layer is described as a solid resin sheet, and the second layer is described as a fibrous sheet. Here, the first and second layers are described as being fused together. That is, the resin of the first layer penetrates between the fibers of the second layer in a fluid state and then hardens. This maintains the state in which the resin of the first layer penetrates between the fibers of the second layer, firmly fixing the first and second layers together.

[0040] The first and second layers may be formed to have the same size (same planar shape). One of the first and second layers may be formed larger than the other. The first and second layers may be fixed over the entire contact area. The first and second layers may be fixed over only a portion of the contact area.

[0041] The sheet member 30 is a soft member. For example, the first layer is a solid sheet made of a soft resin such as soft PVC, and the second layer is a nonwoven fabric made of PET, making the sheet member 30 a soft member. The sheet member 30 has flexibility that allows it to follow the bending of the linear transmission member 22. The wiring member 10 can be bent in the thickness direction (bending such that the folds follow the holding surface of the sheet member 30).

[0042] The paths of the multiple linear transmission members 22 are set according to the positions of the components to which they are connected, etc. By fixing the multiple linear transmission members 22 to the sheet member 30, the multiple linear transmission members 22 are maintained along wiring paths according to the positions of the components to which they are connected, etc. The paths of the multiple linear transmission members 22 may be configured by a combination of straight paths and curved paths. The sheet member 30 may also be configured by a combination of straight paths and curved paths.

[0043] Here, the multiple linear transmission members 22 extend along the same path. The multiple linear transmission members 22 may be fixed to the sheet member 30 in a manner in which some of the linear transmission members 22 branch off from the other linear transmission members 22. The sheet member 30 may also be formed in a shape in which a portion to which some of the linear transmission members 22 are fixed branches off from a portion to which other linear transmission members 22 are fixed.

[0044] The fixing manner of the sheet member 30 and the linear transmission member 22 may be contact-part fixing, non-contact-part fixing, or a combination of both. Here, contact-part fixing means that the sheet member 30 and the linear transmission member 22 are fixed by adhering to each other at the contacting portions. Non-contact-part fixing means a fixing manner other than contact-part fixing, such as using sewing thread, a cover, adhesive tape, or the like to press the linear transmission member 22 toward the sheet member 30 or to sandwich the sheet member 30 and the linear transmission member 22 together, thereby maintaining that state.

[0045] The manner of fixing the contact portions may be indirect fixing of the contact portions, direct fixing of the contact portions, or a combination of both in different regions. Here, indirect fixing of the contact portions means that the sheet member 30 and the linear transmission member 22 are indirectly fixed to each other via an adhesive, pressure-sensitive adhesive, double-sided adhesive tape, or the like provided between them. Direct fixing of the contact portions means that the sheet member 30 and the linear transmission member 22 are directly fixed to each other without using a separate adhesive or the like. In direct fixing of the contact portions, for example, the sheet member 30 and the linear transmission member 22 may be fixed to each other by melting a resin contained in at least one of them.

[0046] When such a state of direct fixation of the contact regions is formed, the resin may be melted by, for example, heat or a solvent. That is, the state of direct fixation of the contact regions may be a state of direct fixation of the contact regions by heat or a state of direct fixation of the contact regions by a solvent. Preferably, the state of direct fixation of the contact regions is a state of direct fixation of the contact regions by heat.

[0047] The means for achieving this state of direct fixation at the contact sites is not particularly limited, and known means such as fusion can be used. For example, when achieving this state of direct fixation at the contact sites by heat fusion, various fusion means can be used, such as ultrasonic fusion, heat and pressure fusion, hot air fusion, and high-frequency fusion. Furthermore, when this state of direct fixation at the contact sites is achieved by these means, the sheet member 30 and the linear transmission member 22 are directly fixed at the contact sites by that means. Specifically, for example, when this state of direct fixation at the contact sites is achieved by ultrasonic fusion, the sheet member 30 and the linear transmission member 22 are directly fixed at the contact sites by ultrasonic fusion. Therefore, the above-mentioned fusion fixation is one form of direct fixation at the contact sites.

[0048] Here, the sheet member 30 and the linear transmission member 22 are directly fixed at the contact area. In this case, the outermost layer of the linear transmission member 22 and the fusion layer are fused together. The outermost layer of the linear transmission member 22 is the coating layer 24. The coating layer 24 is made of a material that can be fused to the fusion layer. The resin material constituting the coating layer 24 may be the same type as the resin material constituting the fusion layer. For example, the resin material constituting the fusion layer and the resin material constituting the coating layer 24 are PVC or polyolefin.

[0049] The fixed portion between the sheet member 30 and the linear transmission member 22 is called a wire fixing portion 34. Here, the wire fixing portion 34 is a fused portion. A plurality of wire fixing portions 34 may be provided at intervals along the extension direction of the linear transmission member 22. The intervals between the plurality of wire fixing portions 34 are not particularly limited and can be set as appropriate.

[0050] Here, the linear transmission member 22 extends from the connector 40 at one end to the connector 40 at the other end, bending in an L-shape in a plan view. The sheet member 30 also has an L-shaped bend in a plan view to match the path of the linear transmission member 22. A plurality of linear transmission members 22 are arranged in a bent state on the sheet member 30. Wire fixing portions 34 between the linear transmission member 22 and the sheet member 30 are provided at a plurality of positions spaced apart from each other along the extension direction of the linear transmission member 22.

[0051] The wiring bodies 20A and 20B are stacked so that at least one of the linear transmission members 22A and 22B is located between the sheet members 30A and 30B. Here, the wiring bodies 20A and 20B are stacked so that both of the linear transmission members 22A and 22B are located between the sheet members 30A and 30B. Therefore, the wiring bodies 20A and 20B are line-symmetrical to each other when viewed from the arrangement surface side of the linear transmission members 22A and 22B. The wiring bodies 20A and 20B may be stacked so that one of the linear transmission members 22A and 22B is located between the sheet members 30A and 30B and the other is located outside the sheet members 30A and 30B. In this case, the linear transmission member 22 located between the sheet members 30A and 30B is the first linear transmission member 22A. Furthermore, in this case, the two wiring bodies 20 have the same shape when viewed from the arrangement surface side of the linear transmission members 22.

[0052] The interlayer fixing portion 36 fixes the first wiring body 20A and the second wiring body 20B in a stacked state. The interlayer fixing portion 36 fixes the first sheet member 30A and the second sheet member 30B.

[0053] The fixing manner of the interlayer fixing portion 36 is not particularly limited and can be set as appropriate. For example, the interlayer fixing portion 36 may be the contact-site fixing or non-contact-site fixing described above for the wire fixing portion 34. Also, for example, the interlayer fixing portion 36 may be the contact-site direct fixing or contact-site indirect fixing described above for the wire fixing portion 34. The fixing manner of the wire fixing portion 34 and the fixing manner of the interlayer fixing portion 36 may be the same or different from each other. Here, the fixing manner of the interlayer fixing portion 36 is described as being the same as the fixing manner of the wire fixing portion 34, that is, fusion fixing.

[0054] The position of the interlayer fixing portion 36 in the width direction of the sheet member 30 is not particularly limited and can be set as appropriate. Here, the interlayer fixing portion 36 is provided on one side edge and the other side edge of the sheet member 30. The interlayer fixing portion 36 is located outward in the width direction from the portion of the sheet member 30 where the linear transmission member 22 is arranged. The interlayer fixing portion 36 may also be located in the portion of the sheet member 30 where the linear transmission member 22 is arranged. The interlayer fixing portion 36 may also be located between two linear transmission members 22 on the sheet member 30.

[0055] The interlayer fixing portion 36 is provided at a position closer to the center of the wiring member 10 in the stacking direction. The side edges of the sheet members 30A, 30B are curved in the thickness direction so as to be closer to the center of the wiring member 10 in the stacking direction. The interlayer fixing portion 36 may be provided at a position closer to the outside of either one of the sheet members 30A, 30B in the stacking direction. The side edge of either one of the sheet members 30A, 30B does not have to be curved in the thickness direction.

[0056] The interlayer fixing portions 36 are provided at a plurality of positions spaced apart from one another along the extension direction of the linear transmission member 22. The interlayer fixing portion 36 at one side edge and the interlayer fixing portion 36 at the other side edge are provided at the same positions along the extension direction of the linear transmission member 22. Therefore, in the portions where the interlayer fixing portions 36 are provided, the sheet members 30A, 30B have a cylindrical shape that is entirely closed along the circumferential direction. In the portions where the interlayer fixing portions 36 are provided, the entire circumferential direction of the linear transmission member 22 is enclosed by the sheet members 30A, 30B. In the portions where the interlayer fixing portions 36 are not provided, the sheet members 30A, 30B have a cylindrical shape that is partially open along the circumferential direction. The interlayer fixing portion 36 at one side edge and the interlayer fixing portion 36 at the other side edge may be provided at different positions from one another along the extension direction of the linear transmission member 22.

[0057] As described above, the wiring member 10 has a bent portion 50 disposed along the bending surface 102 of the placement target 100. The bent portion 50 in the wiring member 10 is a portion where the first wiring body 20A and the second wiring body 20B bend in the stacking direction. The interlayer fixed portion 36 includes a first interlayer fixed portion 36A and a second interlayer fixed portion 36B. The first interlayer fixed portion 36A and the second interlayer fixed portion 36B are spaced apart from each other along the extension direction of the first linear transmission member 22A. The first interlayer fixed portion 36A is located on one side of the bent portion 50 along the extension direction of the first linear transmission member 22A. The second interlayer fixed portion 36B is located on the other side of the bent portion 50 along the extension direction of the first linear transmission member 22A. There are no other interlayer fixed portions 36 between the first interlayer fixed portion 36A and the second interlayer fixed portion 36B. The first interlayer fixing portion 36A and the second interlayer fixing portion 36B maintain the bent state of the bent portion 50. This will be described together with a method for manufacturing the wiring member 10.

[0058] The manufacturing method of the wiring member 10 includes a laminating process, a bending process, and a fixing process. The laminating process is a process of laminating the first wiring body 20A and the second wiring body 20B so that the first linear transmission member 22A is located between the first sheet member 30A and the second sheet member 30B. The bending process is a process of bending the first wiring body 20A and the second wiring body 20B in the laminating direction of the first wiring body 20A and the second wiring body 20B. In the bending process, a bent portion 50 is formed in each wiring body 20. After the bending process, the linear transmission member 22 and the sheet member 30 of each wiring body 20 may develop a bent habit. The fixing process is a process of fixing the first sheet member 30A and the second sheet member 30B. In the fixing process, an interlayer fixing portion 36 is formed. The fixing process is performed after the laminating process and the bending process. As a result, the interlayer fixing portion 36 maintains the laminated state and the bent state of the bent portion 50. The order of the lamination step and the bending step does not matter. In the bending step, the first wiring body 20A and the second wiring body 20B may be bent individually, or may be bent in a laminated state.

[0059] Here, when the fixing step is performed before the bending step, the interlayer fixing portion 36 is formed when each sheet member 30 is in a straight line. In this case, when the wiring member 10 has been formed with the bent portion 50, the interlayer fixing portion 36 in each sheet member 30 is provided at a position corresponding to the straight line shape.

[0060] In contrast, when the fixing process is performed after the bending process, the interlayer fixing portions 36 are formed when each sheet member 30 is in a bent state. In this case, when the wiring member 10 has been formed, having bent portions 50, the interlayer fixing portions 36 on each sheet member 30 are provided at positions corresponding to the bent shape. In this manner, the positions at which the interlayer fixing portions 36 are provided on each sheet member 30 may differ between when the fixing process is performed before the bending process and when the fixing process is performed after the bending process. Due to this difference in the positions of the interlayer fixing portions 36, when the fixing process is performed after the bending process, the interlayer fixing portions 36 are more likely to maintain the bent shape of the sheet member 30 than when the fixing process is performed before the bending process.

[0061] Furthermore, when the fixing step is performed before the bending step, the length of the first sheet member 30A and the length of the second sheet member 30B are basically the same between the first interlayer fixing portion 36A and the second interlayer fixing portion 36B. In contrast, when the bending step is performed before the fixing step, each wiring body 20 can be bent without relying on the interlayer fixing portion 36, so it is easy to make the length of the first sheet member 30A and the length of the second sheet member 30B different from each other between the first interlayer fixing portion 36A and the second interlayer fixing portion 36B.

[0062] 4, the length from the first interlayer fixing portion 36A to the second interlayer fixing portion 36B of the first sheet member 30A is different from the length from the first interlayer fixing portion 36A to the second interlayer fixing portion 36B of the second sheet member 30B. This difference in length between the first and second interlayer fixing portions 36A and 36B of the first sheet member 30A and 30B makes it easier to maintain the bent portion 50 in the bent state.

[0063] 4, the length from the first interlayer fixing portion 36A to the second interlayer fixing portion 36B of the first sheet member 30A is longer than the length from the first interlayer fixing portion 36A to the second interlayer fixing portion 36B of the second sheet member 30B. In this case, when attempting to straighten the bent portion 50, the second sheet member 30B becomes stiff, or the first sheet member 30A is unable to bend outward. This makes it difficult for the bent portion 50 to straighten.

[0064] The first sheet member 30A and the second sheet member 30B are spaced apart in the stacking direction between the first interlayer fixing portion 36A and the second interlayer fixing portion 36B. When observing the portion where the linear transmission member 22 is arranged, the distance between the first sheet member 30A and the second sheet member 30B between the first interlayer fixing portion 36A and the second interlayer fixing portion 36B is greater than the distance between the first sheet member 30A and the second sheet member 30B at the position of the first interlayer fixing portion 36A and the distance between the first sheet member 30A and the second sheet member 30B at the position of the second interlayer fixing portion 36B.

[0065] 4, the first linear transmission member 22A follows the first sheet member 30A, and the second linear transmission member 22B follows the second sheet member 30B, so that the first linear transmission member 22A and the second linear transmission member 22B are separated from each other in the stacking direction between the first interlayer fixed portion 36A and the second interlayer fixed portion 36B. The first linear transmission member 22A may be separated from the first sheet member 30A, or the second linear transmission member 22B may be separated from the second sheet member 30B, so that the first linear transmission member 22A and the second linear transmission member 22B are in contact in the stacking direction between the first interlayer fixed portion 36A and the second interlayer fixed portion 36B.

[0066] In the example shown in FIG. 4 , the first sheet member 30A and the second sheet member 30B form a triangular shape in side view between the first interlayer fixing portion 36A and the second interlayer fixing portion 36B. The first sheet member 30A extends to form two sides of the triangle, and the second sheet member 30B extends to form the remaining side of the triangle. This makes it easy to make the length from the first interlayer fixing portion 36A to the second interlayer fixing portion 36B of the first sheet member 30A longer than the length from the first interlayer fixing portion 36A to the second interlayer fixing portion 36B of the second sheet member 30B. The first sheet member 30A and the second sheet member 30B may form a shape other than a triangle, such as a triangle, between the first interlayer fixing portion 36A and the second interlayer fixing portion 36B in side view.

[0067] In the example shown in FIG. 4, the bent portion 50 between the first interlayer fixing portion 36A and the second interlayer fixing portion 36B is an offset bent portion 50 in which the sheet member 30 located on the inner periphery of the first sheet member 30A and the sheet member 30 located on the outer periphery of the second sheet member 30B are interchanged. The bent portion 50 is formed in a shape corresponding to the bent surface 102. The bent surface 102 is formed in an offset bent shape having both a concave surface and a convex surface. In the portion corresponding to the concave surface, the first sheet member 30A is located on the inner periphery. In the portion corresponding to the convex surface, the first sheet member 30A is located on the outer periphery.

[0068] <Effects, etc.> In the wiring member 10 configured as described above, the interlayer fixing portion 36, which fixes the first sheet member 30A and the second sheet member 30B in a stacked state, maintains the bent state of the bent portion 50, allowing the flat wiring member 10 to be maintained in a bent state without using a shape-retaining member separate from the sheet member 30. This reduces the increase in weight and thickness due to the shape-retaining member. Since the bent portion 50 of the wiring member 10 is maintained, the wiring member 10 can be easily placed along the bent surface 102 by placing the bent portion 50 of the wiring member 10 on the bent surface 102 of the placement target 100. This facilitates the placement of the wiring member 10 on the bent surface 102.

[0069] Furthermore, the length from the first interlayer fixing portion 36A to the second interlayer fixing portion 36B of the first sheet member 30A is different from the length from the first interlayer fixing portion 36A to the second interlayer fixing portion 36B of the second sheet member 30B, and the first sheet member 30A and the second sheet member 30B are spaced apart in the stacking direction between the first interlayer fixing portion 36A and the second interlayer fixing portion 36B. As a result, when the bent portion 50 between the first interlayer fixing portion 36A and the second interlayer fixing portion 36B attempts to deform linearly, the shorter of the first sheet member 30A and the second sheet member 30B becomes taut or the longer sheet member 30 is unable to bend in the stacking direction, thereby suppressing linear deformation.

[0070] Furthermore, the first sheet member 30A and the second sheet member 30B form a triangular shape in side view between the first interlayer fixing portion 36A and the second interlayer fixing portion 36B, which makes it easy to create a relationship between the first sheet member 30A and the second sheet member 30B between the first interlayer fixing portion 36A and the second interlayer fixing portion 36B.

[0071] Furthermore, the bent portion 50 between the first interlayer fixing portion 36A and the second interlayer fixing portion 36B is an offset bent portion 50 in which the sheet member 30 located on the inner periphery of the first sheet member 30A and the sheet member 30 located on the outer periphery of the second sheet member 30B are switched. As a result, the bent state of the offset bent portion 50 is maintained by the first interlayer fixing portion 36A and the second interlayer fixing portion 36B on both sides of the offset bent portion 50.

[0072] Furthermore, according to the manufacturing method of wiring member 10, the fixing step is performed after the laminating step and the bending step, so that interlayer fixing portion 36 between first sheet member 30A and second sheet member 30B can maintain the bent state of bent portion 50. This makes it possible to maintain flat wiring member 10 in a bent state without using a shape maintaining member separate from sheet member 30.

[0073] [Note] FIG. 7 is a side view showing a wiring member 110 according to a first modified example.

[0074] 7 includes an interlayer fixing portion 36C provided between the first interlayer fixing portion 36A and the second interlayer fixing portion 36B. A bent portion 150A is provided between the first interlayer fixing portion 36A and the interlayer fixing portion 36C, and a bent portion 150B is provided between the interlayer fixing portion 36C and the second interlayer fixing portion 36B. Interlayer fixing portion 36C can be considered to form a second interlayer fixing portion relative to first interlayer fixing portion 36A, and a first interlayer fixing portion relative to second interlayer fixing portion 36B.

[0075] Each of the bent portions 150A and 150B is a single bent portion in which the sheet member 30 located on the inner periphery of the first sheet member 30A and the sheet member 30 located on the outer periphery of the second sheet member 30B are not interchangeable. As a result, the bent state of each of the single bent portions 150A and 150B is maintained by the interlayer fixing portions 36 on both sides of each of the single bent portions 150A and 150B. In the bent portion 150A, the first sheet member 30A is located on the inner periphery, and the second sheet member 30B is located on the outer periphery. In the bent portion 150B, the first sheet member 30A is located on the outer periphery, and the second sheet member 30B is located on the inner periphery.

[0076] Two single bending portions 150A, 150B, which are positioned inversely to each other inside and outside the sheet member 30, are combined to form a path similar to that of the above-described bending portion 50, which is the offset bending portion 50. Note that when the bending surface 102 has an L-shaped bent shape, only one of the single bending portions 150A, 150B may be provided.

[0077] Fig. 8 is an exploded plan view showing a wiring member 210 according to the second modified example, and Fig. 9 is a cross-sectional view showing a wiring member 210 according to the second modified example.

[0078] The wiring member 210 includes a wiring body 20C. The wiring body 20C is an example of the third wiring body 20C that is layered between the first wiring body 20A and the second wiring body 20B. As a result, the wiring member 210, on which the third wiring body 20C is further layered, is maintained in a bent state by the interlayer fixing portion 36 between the first sheet member 30A and the second sheet member 30B.

[0079] At least one layer of wiring body 20C is provided. In the example shown in FIG. 8, two layers of wiring body 20C are provided, and wiring member 210 has a four-layer structure. Wiring body 20C includes a linear transmission member 22C and a sheet member 30C. Linear transmission member 22C is an example of a third linear transmission member 22C, and sheet member 30C is an example of a third sheet member 30C. Linear transmission member 22C may be the same type of linear transmission member as linear transmission members 22A and 22B, or may be a different type of linear transmission member. Sheet member 30C may be formed in the same manner as sheet members 30A and 30B, or may be formed in a different manner.

[0080] 9, the sheet member 30C is shorter than the sheet members 30A and 30B in the extension direction of the linear transmission member 22 and is divided into multiple pieces. The sheet member 30C includes multiple divided sheet portions 32 that are spaced apart from each other along the extension direction of the linear transmission member 22.

[0081] The position at which the divided sheet portion 32 is provided along the extension direction of the linear transmission member 22 is not particularly limited and can be set appropriately. For example, the divided sheet portion 32 may be provided at a position where the interlayer fixing portion 36 is provided, or at a position where the interlayer fixing portion 36 is not provided. Furthermore, for example, the divided sheet portion 32 may be provided at a position where the wire fixing portion 34 is provided in the first wiring body 20A or the second wiring body 20B, or at a position where the wire fixing portion 34 is not provided in the first wiring body 20A or the second wiring body 20B. Furthermore, for example, the divided sheet portion 32 may be provided at the bent portion 50, or may not be provided at the bent portion 50.

[0082] The length of the divided sheet portions 32 in the extension direction of the linear transmission member 22 is not particularly limited and can be set appropriately. The length of the divided sheet portions 32 in the extension direction of the linear transmission member 22 is shorter than the length of the divided sheet portions 32 in the parallel arrangement direction of the multiple linear transmission members 22. In the example shown in FIG. 9, the length of the divided sheet portions 32 in the extension direction of the linear transmission member 22 is shorter than the distance between adjacent divided sheet portions 32. The length of the divided sheet portions 32 in the extension direction of the linear transmission member 22 may be equal to or longer than the distance between adjacent divided sheet portions 32. In the example shown in FIG. 9, the length of the divided sheet portions 32 in the extension direction of the linear transmission member 22 is approximately the same as the fusion length of one wire fixing portion 34 in the sheet member 30A. In this case, the entire or most of the divided sheet portions 32 in the extension direction of the linear transmission member 22 may be fused to the linear transmission member 22. The length dimension of the divided sheet portion 32 in the extending direction of the linear transmission member 22 may be longer than the fused length of one wire fixing portion 34 in the sheet member 30A.

[0083] Each divided sheet portion 32 is shorter than sheet members 30A, 30B in the parallel arrangement direction of the multiple linear transmission members 22. Each divided sheet portion 32 is not fixed to an interlayer fixing portion 36. The side edge of sheet member 30C of wiring body 20C is located more inward in the width direction of sheet member 30 than interlayer fixing portion 36. Sheet member 30C of wiring body 20C may also be fixed to interlayer fixing portion 36.

[0084] The wiring bodies 20C are not fixed to each other. Furthermore, the wiring body 20C is not fixed to the wiring bodies 20A, 20B. At the position where the interlayer fixing portion 36 is provided, the pair of wiring bodies 20A, 20B form a tubular structure. The wiring body 20C is accommodated inside the tubular structure, thereby maintaining the stacked structure of the multiple wiring bodies 20. However, the wiring bodies 20C may be fixed to each other. Furthermore, the wiring body 20C may be fixed to the wiring bodies 20A, 20B.

[0085] Furthermore, the sheet member 30C is wrapped in the sheet members 30A and 30B. Therefore, the sheet member 30C may have a single-layer structure including only the first layer without including the second layer.

[0086] The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually contradictory. [Explanation of symbols]

[0087] 10, 110, 210 Wiring materials 20 Wiring body 20A First wiring body 20B 2nd wiring body 20C 3rd wiring body 22 Linear transmission member 22A First linear transmission member 22B Second linear transmission member 22C Third linear transmission member 23 Transmission line body 24 Covering layer 30 Sheet material 30A First sheet member 30B second sheet member 30C Third sheet member 32 Split seat part 34 Wire fixing part 36, 36C interlayer fixation part 36A 1st interlayer fixing part 36B 2nd interlayer fixing part 40 connectors 50, 150A, 150B bends 100 Placement Targets 102 Bending Surface 103 1st surface 104 Second surface 105 Third surface

Claims

1. A first wiring body; a second wiring body stacked on the first wiring body along a stacking direction; an interlayer fixing portion that fixes the first wiring body and the second wiring body in a stacked state; Equipped with the first wiring body includes a first linear transmission member and a first sheet member to which the first linear transmission member is fixed, the second wiring body includes a second linear transmission member and a second sheet member to which the second linear transmission member is fixed, the first wiring body and the second wiring body are laminated such that the first linear transmission member is located between the first sheet member and the second sheet member, the first wiring body and the second wiring body are provided with bent portions that are bent in the stacking direction, The wiring member, wherein the interlayer fixing portion fixes the first sheet member and the second sheet member together to maintain the bent state of the bent portion.

2. The wiring member according to claim 1, the interlayer fixing portion includes a first interlayer fixing portion and a second interlayer fixing portion that are spaced apart from each other along an extending direction of the first linear transmission member, the first interlayer fixing portion is located on one side of the bent portion along the extending direction, the second interlayer fixing portion is located on the other side of the bent portion along the extending direction, a length from the first interlayer fixing portion to the second interlayer fixing portion of the first sheet member and a length from the first interlayer fixing portion to the second interlayer fixing portion of the second sheet member are different from each other, a wiring member, wherein the first sheet member and the second sheet member are spaced apart from each other in the stacking direction between the first interlayer fixing portion and the second interlayer fixing portion.

3. The wiring member according to claim 2, a wiring member in which the first sheet member and the second sheet member form a triangular shape in a side view between the first interlayer fixing portion and the second interlayer fixing portion;

4. The wiring member according to claim 2 or 3, A wiring member, wherein the bending portion between the first interlayer fixing portion and the second interlayer fixing portion is an offset bending portion in which the sheet member located on the inner periphery of the first sheet member and the sheet member located on the outer periphery of the second sheet member are interchanged.

5. The wiring member according to claim 2 or 3, A wiring member, wherein the bent portion between the first interlayer fixing portion and the second interlayer fixing portion is a single bent portion in which the sheet member located on the inner periphery of the first sheet member and the sheet member located on the outer periphery of the second sheet member are not interchanged.

6. The wiring member according to any one of claims 1 to 3, A wiring member comprising a third wiring body stacked between the first wiring body and the second wiring body.

7. A method for manufacturing a wiring member including a first wiring body including a first linear transmission member and a first sheet member to which the first linear transmission member is fixed, and a second wiring body including a second linear transmission member and a second sheet member to which the second linear transmission member is fixed, a lamination step of laminating the first wiring body and the second wiring body so that the first linear transmission member is located between the first sheet member and the second sheet member; a bending step of bending the first wiring body and the second wiring body in a stacking direction of the first wiring body and the second wiring body; a fixing step of fixing the first sheet member and the second sheet member after the laminating step and the bending step; A method for manufacturing a wiring member, comprising:

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