Wiring materials

Abstract

To provide a technique capable of satisfactorily fixing two sheets sandwiching a linear transmission member.SOLUTION: A wiring member 10 includes a linear transmission member 20, and a first sheet 30A and a second sheet 30B sandwiching the linear transmission member 20. The first sheet 30A includes a sandwiching portion 31 sandwiching the linear transmission member 20 between itself and the second sheet 30B, and a fixing portion 32 projecting from the sandwiching portion 31 to the side of the linear transmission member 20 and fixed to the second sheet 30B. The first sheet 30A and the second sheet 30B are closer to each other in the thickness direction at the position of the fixing portion 32 than at the position of the sandwiching portion 31. The first sheet 30A is formed with a bendable portion 34 that facilitates bending of the first sheet 30A between the sandwiching portion 31 and the fixing portion 32.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a wiring member. [Background technology]

[0002] Patent Document 1 discloses a technique for keeping a plurality of electric wires flat. In Patent Document 1, the plurality of electric wires are kept flat by, for example, being sandwiched between two sheets. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-202730 A Summary of the Invention [Problem to be solved by the invention]

[0004] It is desirable for the two sheets that sandwich the multiple electric wires to be fixed firmly in place.

[0005] Therefore, an object of the present invention is to provide a technique that can satisfactorily fix two sheets that sandwich a linear transmission member. [Means for solving the problem]

[0006] The wiring member disclosed herein comprises a linear transmission member, and a first sheet and a second sheet sandwiching the linear transmission member, wherein the first sheet has a clamping portion that sandwiches the linear transmission member between the first sheet and the second sheet, and a fixed portion that protrudes from the clamping portion to the side of the linear transmission member and is fixed to the second sheet, wherein the first sheet and the second sheet are closer to each other in the thickness direction at the position of the fixed portion than at the position of the clamping portion, and the first sheet is formed with an easy-bend portion that makes it easier to bend the first sheet between the clamping portion and the fixed portion. Effect of the Invention

[0007] According to the present disclosure, the two sheets that sandwich the linear transmission member can be fixed well. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a plan view showing the wiring member according to the first embodiment. [Diagram 2] FIG. 2 is a bottom view showing the wiring member according to the first embodiment. [Diagram 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. [Figure 4] FIG. 4 is a diagram illustrating a process for producing the wiring member according to the first embodiment. [Diagram 5] FIG. 5 is a diagram illustrating a process for producing the wiring member according to the first embodiment. [Figure 6] FIG. 6 is a diagram illustrating a process for manufacturing a wiring member according to a comparative example. [Figure 7] FIG. 7 is a schematic plan view showing the wiring member according to the first embodiment. [Figure 8] FIG. 8 is a partially enlarged view of FIG. [Figure 9] FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Description of the embodiments of the present disclosure] First, the 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 linear transmission member, and a first sheet and a second sheet sandwiching the linear transmission member, the first sheet having a clamping portion that clamps the linear transmission member between the first sheet and the second sheet, and a fixing portion that protrudes from the clamping portion to the side of the linear transmission member and is fixed to the second sheet, the first sheet and the second sheet are closer to each other in the thickness direction at the position of the fixing portion than at the position of the clamping portion, and the first sheet has an easy-to-bend portion that makes it easier to bend the first sheet between the clamping portion and the fixing portion. When the fixing portion is provided with the clamping portion sandwiching the electric wire, the part of the first sheet that becomes the fixing portion is easily bent so as to approach parallel to the second sheet by the easy-to-bend portion. This makes it easier to provide the fixing portion.

[0012] (2) In the wiring member of (1), the first sheet may be partially provided with respect to the second sheet along the extending direction of the linear transmission member. This makes it possible to easily provide an easily bendable portion since the first sheet is smaller than the second sheet along the extending direction of the linear transmission member.

[0013] (3) In the wiring member of (1) or (2), the easy-to-bend portion may include a first easy-to-bend portion provided at an inner end of the fixing portion along the width direction of the first sheet. This makes it easier for the portion of the first sheet that becomes the fixing portion to bend closer to being parallel to the second sheet. This makes it easier to provide the fixing portion.

[0014] (4) In the wiring member of (3), the easy-to-bend portion may have a second easy-to-bend portion provided at a position along the width direction of the first sheet closer to the linear transmission member than the first easy-to-bend portion, so that when the clamping portion of the first sheet is placed in the groove of the mold, the first sheet is more likely to bend along the inner surface of the groove of the mold.

[0015] (5) In any one of the wiring members (1) to (4), the fixing portion may be a fusion portion. This allows the first sheet and the second sheet to be fixed directly without using another member. In this case, the first sheet and the second sheet contact each other at the fixing portion, so the dimension of the separation between the clamping portion and the fixing portion in the thickness direction is larger than when an adhesive or the like is interposed between them. Even in this case, the presence of the easily bendable portion makes it easier to provide the fixing portion.

[0016] (6) In the wiring member of (5), the fixing portion may be an ultrasonically fused portion, and a horn mark may be formed on the outer surface of the second sheet. In this way, the first sheet is placed on an anvil, and the second sheet is ultrasonically fused so that the horn comes into contact with the second sheet. At this time, since the first sheet has an easy-to-bend portion, when the first sheet is placed on a grooved anvil, the portion that becomes the fixing portion is easily bent so as to approach parallel to the second sheet.

[0017] (7) In the wiring member of (5) or (6), the first sheet or the second sheet may have an extending portion extending laterally to the fixed portion, a linear transmission member different from the linear transmission member is disposed on the extending portion, and a coating layer of the different linear transmission member may be fused to the extending portion. This allows the linear transmission member and the different linear transmission member to be easily held by the first sheet and the second sheet.

[0018] [Details of the embodiment of the present disclosure] Specific examples of the wiring member of 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 equivalent to the claims.

[0019] [Embodiment 1] Hereinafter, the wiring member according to embodiment 1 will be described. Fig. 1 is a plan view showing the wiring member 10 according to embodiment 1. Fig. 2 is a bottom view showing the wiring member 10 according to embodiment 1. Fig. 3 is a cross-sectional view taken along line III-III in Fig. 1.

[0020] The wiring member 10 electrically (or optically) connects various components in a vehicle or the like. The wiring member 10 supplies power to devices and sends signals between devices by transmitting electricity or light. The wiring member 10 includes a linear transmission member 20 and multiple sheets 30. At least a middle section of the linear transmission member 20 is sandwiched between the multiple sheets 30. The sheet 30 is formed into a flat shape overall. The multiple linear transmission members 20 are sandwiched between the sheets 30, thereby maintaining the wiring member 10 in a flat shape. Here, the two sheets 30 sandwich the linear transmission member 20. When it is necessary to distinguish between the two sheets 30, they will be referred to as sheets 30A and 30B, and when no distinction is necessary, they will be referred to as sheet 30.

[0021] The linear transmission member 20 is a linear member that transmits electricity or light. The linear transmission member 20 includes a transmission line body 21 and a coating layer 22. The transmission line body 21 is a transmission path that transmits electricity or light. For example, when the linear transmission member 20 is an electric wire, the transmission line body 21 is a conductor core wire. The conductor core wire is composed of one or more strands. The strands are formed of copper, copper alloy, aluminum, aluminum alloy, or the like. For example, when the linear transmission member 20 is an optical fiber, the transmission line body 21 is a core and clad. The coating layer 22 covers the transmission line body 21. The resin material that constitutes the coating layer 22 is not particularly limited and can be set appropriately. For example, the linear transmission member 20 may be a general electric wire having a core wire and a coating layer 22 around the core wire, or may be a shielded wire, a twisted wire, an enamel wire, a nichrome wire, an optical fiber, or the like.

[0022] The linear transmission member 20 that transmits electricity may be any of various signal lines and various power lines. A part of the linear transmission member 20 that transmits electricity may be used as an antenna, a coil, or the like that transmits a signal or power to or receives it from space.

[0023] Furthermore, the linear transmission member 20 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 20 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.

[0024] Each sheet 30 is not particularly limited in material, structure, etc., as long as it can maintain the state in which the linear transmission member 20 is sandwiched between the sheets 30. Regarding the material constituting the sheet 30, the sheet 30 is formed of a resin material here. The material constituting the sheet 30 may be a material other than resin, such as a metal or an inorganic material. Regarding the structure of the sheet 30, the sheet 30 has a two-layer structure here. The structure of the sheet 30 may be a one-layer structure or a multi-layer structure of three or more layers.

[0025] The sheet 30 includes a first layer and a second layer. The first layer is a fusion layer. The linear transmission member 20 is fused and fixed to the fusion layer. The fusion layer includes 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 such resin material is not particularly limited, and polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), etc. can be used.

[0026] 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 the first surface of the sheet 30.

[0027] The second layer may be formed of a different material or have a different structure than the fusion layer. The second layer enhances the function of the fusion layer or adds a function not present in the fusion layer to the sheet 30. The material constituting the second layer may be a material described above for the fusion layer, as well as a metal, an inorganic material, etc. The structure of the second layer may be any of the structures described above for the fusion layer. One surface of the second layer is the second surface of the sheet 30.

[0028] The first layer and the second layer 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 layer and the second layer 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 layer and the second layer is a sheet having voids on the surface, such as a fiber sheet or a foam sheet, a resin material or an adhesive can be inserted into the voids to fix them together. This produces a so-called anchor effect, and the first layer and the second layer are firmly fixed together.

[0029] Here, the first layer is described as a solid resin sheet, and the second layer is described as a fibrous sheet. Here, the first layer and the second layer are described as being fused together. In other words, the resin of the first layer is hardened after penetrating between the fibers of the second layer in a fluid state. This maintains the state in which the resin of the first layer is penetrating between the fibers of the second layer, and the first layer and the second layer are firmly fixed together.

[0030] The first layer and the second layer are formed to have the same size (same planar shape). One of the first layer and the second layer may be formed to be larger than the other. The first layer and the second layer are fixed over the entire area where they contact. The first layer and the second layer may be fixed only in a part of the area where they contact.

[0031] The sheet 30 may be a soft member. For example, the first layer may be a solid sheet made of a soft resin such as soft PVC, and the second layer may be a nonwoven fabric made of PET, so that the sheet 30 is a soft member. The sheet 30 may have flexibility capable of following the bending of the linear transmission member 20. The wiring member 10 may be capable of bending in the thickness direction (bending such that the folds are along the main surface of the sheet 30).

[0032] The material and layer structure of sheet 30A are the same as the material and layer structure of sheet 30B. The material and layer structure of sheet 30A may be different from the material and layer structure of sheet 30B. For example, sheet 30A may have a one-layer structure of only a first layer, and sheet 30B may have a two-layer structure of a first layer and a second layer. The planar shape of sheet 30A is the same as the planar shape of sheet 30B. The planar shape of sheet 30A may be different from the planar shape of sheet 30B.

[0033] Each sheet 30 has a clamping portion 31 and a fixing portion 32. The clamping portion 31 is a portion that clamps the linear transmission member 20 between the multiple sheets 30. The clamping portion 31 of one sheet 30A covers one side of the linear transmission member 20, and the clamping portion 31 of the other sheet 30B covers the other side of the linear transmission member 20. The clamping portion 31 of the sheet 30A and the clamping portion 31 of the sheet 30B are separated in the thickness direction because they clamp the linear transmission member 20 between them. The fixing portion 32 protrudes from the clamping portion 31 to the side of the linear transmission member 20. The fixing portion 32 of one sheet 30A is fixed to the fixing portion 32 of the other sheet 30B. The sheets 30A and 30B are closer to each other in the thickness direction at the position of the fixing portion 32 than at the position of the clamping portion 31.

[0034] At least one of the sheets 30A and 30B bends in the thickness direction from the clamping portion 31 toward the fixed portion 32. In the example shown in FIG. 3, only the sheet 30A of the sheets 30A and 30B bends in the thickness direction from the clamping portion 31 toward the fixed portion 32. The sheet 30B remains flat. Only the sheet 30B of the sheets 30A and 30B may bend in the thickness direction from the clamping portion 31 toward the fixed portion 32. Both the sheets 30A and 30B may bend in the thickness direction from the clamping portion 31 toward the fixed portion 32. In this case, the degree of bending of the sheet 30A and the degree of bending of the sheet 30B may be the same. Also, the sheet 30A may be bent more than the sheet 30B, or the sheet 30B may be bent more than the sheet 30A. The degree of bending of the sheet 30A and the degree of bending of the sheet 30B may be determined by the rigidity of the sheets 30A and 30B, the way in which the fixed portion 32 is formed, and the like.

[0035] The fixing part 32 may be fixed in any manner. Such a fixing manner may be fixing at the contact portion, fixing at the non-contact portion, or both may be used in combination. Here, fixing at the contact portion means that the contacting portions of the sheets 30A and 30B are fixed by sticking together. Fixing at the non-contact portion means a fixing manner that is not fixing at the contact portion, for example, a sewing thread, a cover, an adhesive tape, or the like holds one of the sheets 30A and 30B toward the other, or sandwiches the sheets 30A and 30B, and maintains that state. In the following, the sheets 30A and 30B will be described as being in a state of fixing at the contact portion.

[0036] The manner of fixing the contact parts may be indirect fixing of the contact parts, direct fixing of the contact parts, or both may be used in different regions. Here, indirect fixing of the contact parts means that the sheets 30A and 30B are indirectly attached and fixed via an adhesive member such as an adhesive, a pressure sensitive adhesive, or a double-sided adhesive tape provided between them. Direct fixing of the contact parts means that the sheets 30A and 30B are directly attached and fixed without using an adhesive or the like provided separately. In the case of direct fixing of the contact parts, for example, it is considered that the sheets 30A and 30B are attached and fixed by melting a resin contained in at least one of the sheets 30A and 30B.

[0037] 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.

[0038] At this time, the means for forming the state of direct fixation of the contact parts is not particularly limited, and known means such as welding, fusion, and welding can be used. Here, the sheets 30A and 30B are fused at the fixing part 32. The fixing part 32 is a fusion part 32. For example, the surface layer of the sheet 30A and the surface layer of the sheet 30B are fused. The material of the surface layer of the sheet 30A and the material of the surface layer of the sheet 30B may have compatibility. Here, the resin material constituting the surface layer of the sheet 30A is the same type as the resin material constituting the surface layer of the sheet 30B. For example, both the surface layer of the sheet 30A and the surface layer of the sheet 30B are fusion layers. Both the sheets 30A and 30B have fusion layers. The fusion layer of the sheet 30A and the fusion layer of the sheet 30B face each other. At the fixing part 32, the fusion layer of the sheet 30A and the fusion layer of the sheet 30B are fused. The resin material constituting the fusion layer is, for example, PVC or polyolefin.

[0039] Here, the fixed portion 32 is an ultrasonically fused portion 32 formed by ultrasonic welding. The ultrasonically fused portion 32 is formed by an ultrasonic fusion machine 80 having a horn 82 and anvil 84 (see FIG. 5). In the ultrasonic fusion machine 80, the horn 82 and the anvil 84 clamp the workpieces, and ultrasonic vibration is applied to the workpieces from the horn 82. As a result, the joining surfaces of the workpieces are ultrasonically vibrated and heated, and the materials are partially melted and joined.

[0040] A horn mark 33 is formed on the outer surface of sheet 30B. Horn mark 33 is a mark left at a portion where horn 82 of ultrasonic fusion machine 80 is applied. For example, the outer surface of sheet 30B at fixing portion 32 is recessed, and this recessed portion is horn mark 33. Sheets 30A and 30B are fixed at the position where horn mark 33 is present.

[0041] 2, the horn marks 33 are provided at multiple locations spaced apart along the extension direction of the linear transmission member 20. The sheets 30A, 30B are not fixed at positions where there are no horn marks 33. The sheets 30A, 30B are not fixed between two horn marks 33 along the extension direction of the linear transmission member 20. The sheets 30A, 30B may be fixed over the entire length of the sheets 30A, 30B along the extension direction of the linear transmission member 20.

[0042] The easy-to-bend portion 34 is a portion that makes it easier to bend the sheet 30 between the clamping portion 31 and the fixed portion 32. The sheet 30 is easier to bend with a smaller radius of curvature in the portion with the easy-to-bend portion 34 than in the portion without the easy-to-bend portion 34. The easy-to-bend portion 34 is formed in the sheet 30A. The easy-to-bend portion 34 is not formed in the sheet 30B. In this case, the sheet 30A is an example of the first sheet, and the sheet 30B is an example of the second sheet. The easy-to-bend portion 34 is formed in a sheet 30A other than the sheet 30B on which the horn mark 33 is formed. The easy-to-bend portion 34 may be formed in both the sheets 30A and 30B. In this case, one of the sheets 30A and 30B can be the first sheet, and the other can be the second sheet.

[0043] The easy-to-bend portion 34 extends along the extension direction of the linear transmission member 20. The easy-to-bend portion 34 is formed over the entire length of the sheet 30 along the extension direction of the linear transmission member 20. When the fixed portion 32 is partially provided along the extension direction of the linear transmission member 20, the easy-to-bend portion 34 may also be partially provided along the extension direction of the linear transmission member 20. For example, the easy-to-bend portion 34 may be partially provided on the side of the fixed portion 32.

[0044] Here, perforations 34 are formed as the bending-facilitating portions 34. A plurality of slits 35 are formed intermittently in the extending direction of the linear transmission member 20 to form the perforations 34. The bending-facilitating portions 34 do not have to be perforations 34, and may be anything that makes it easier to bend the sheet 30. For example, the bending-facilitating portions 34 may be grooves in which a portion of the sheet 30 is recessed in the thickness direction. By forming the grooves, the force applied to bending is more likely to be concentrated in the grooves.

[0045] The position of the easy-to-bend portion 34 along the width direction of the sheet 30 is near the boundary between the fixed portion 32 and the clamping portion 31. The position of the easy-to-bend portion 34 along the width direction of the sheet 30 is closer to the fixed portion 32 than the central portion of the clamping portion 31. Here, four easy-to-bend portions 34 are formed along the width direction of the sheet 30. The four easy-to-bend portions 34 are formed two on each side of the central portion along the width direction of the sheet 30. The two easy-to-bend portions 34 on one side of the central portion and the two easy-to-bend portions 34 on the other side of the central portion of the sheet 30 are formed at positions symmetrical with respect to the central portion of the sheet 30. Two sets of easy-to-bend portions 34A and 34B are formed at positions symmetrical with respect to the central portion of the sheet 30.

[0046] The easy-to-bend portion 34A is provided at an inner end of the fixed portion 32 along the width direction of the sheet 30A. The easy-to-bend portion 34B is provided at a position closer to the linear transmission member 20 than the easy-to-bend portion 34A along the width direction of the sheet 30A. The easy-to-bend portion 34A is an example of a first easy-to-bend portion, and the easy-to-bend portion 34B is an example of a second easy-to-bend portion.

[0047] 3, the sheet 30A is bent in the thickness direction at the positions of the easy-to-bend portions 34A and 34B. However, the sheet 30A does not have to be bent in the thickness direction at the positions of the easy-to-bend portions 34A and 34B.

[0048] The linear transmission member 20 is not adhered or fused to either of the sheets 30A, 30B. The linear transmission member 20 can move along the extension direction of the linear transmission member 20 relative to either of the sheets 30A, 30B. The sheets 30A, 30B form a cylindrical space surrounding the periphery of the linear transmission member 20, and the linear transmission member 20 is arranged to be able to move freely within the cylindrical space.

[0049] The linear transmission member 20 may be a member that is difficult to fuse to the sheet 30. Instead of being fused, the linear transmission member 20 is held by the sheet 30 by being sandwiched between the sheets 30A and 30B, and is in a flat state. The linear transmission member 20 may be a special wire that is more difficult to fuse to the sheet 30 than a normal wire. Here, a single-core electric wire having a coating layer formed of the same material as the fusion layer of the sheet 30 is considered to be a normal wire. A wire that is more difficult to fuse to the sheet 30 than a normal wire means that the wire cannot be fused to the sheet 30, and that the wire can be fused to the sheet 30 but requires more effort to fuse to the sheet 30 than a normal wire, or that the fusion strength to the sheet 30 is lower than that of a normal wire when fused under the same fusion conditions. For example, a special wire is a multi-core cable having more transmission paths than a normal wire, or a shielded wire or coaxial cable having a multi-layer structure than a normal wire, and is therefore more difficult to fuse to the sheet 30 than a normal wire. For example, the special wire does not have a uniform cross-sectional shape along its length like a twisted wire, and therefore the reaction force when pressed during fusion is not uniform, making it more difficult to fuse to sheet 30 than an ordinary wire. For example, the covering layer 22 of the special wire is made of a material that is more difficult to fuse to sheet 30 than the covering layer of an ordinary wire, making it more difficult to fuse to sheet 30 than an ordinary wire. For example, the fusion layer and the covering layer of the ordinary wire may be PVC, and the covering layer 22 of the special wire may be polyolefin.

[0050] <Manufacturing method> 4 and 5 are diagrams illustrating the process of manufacturing the wiring member 10 according to the first embodiment.

[0051] First, a sheet 30A having easy-to-bend portions 34A and 34B formed therein is prepared as shown in Fig. 4. At this stage, the sheet 30A is a flat base material. The flat sheet 30A is set in a die 84.

[0052] The die 84 is, for example, an anvil 84 of an ultrasonic fusion machine 80. A groove 85 is formed in the die 84. The die 84 has a first support surface 86 at the bottom of the groove 85 and a second support surface 87 outside the groove 85. The first support surface 86 and the second support surface 87 are connected via a side surface 88 of the groove 85. A first corner 89A is formed between the side surface 88 and the first support surface 86, and a second corner 89B is formed between the side surface 88 and the second support surface 87. The first corner 89A has a shape that is convex inward. The second corner 89B has a shape that is convex outward.

[0053] The middle part of the sheet 30A is supported by the first support surface 86. The bend-easy part 34A is located at the first corner 89A, and the bend-easy part 34 is located at the second corner 89B. The bend-easy part 34A and the bend-easy part 34B of the sheet 30A are easily bent in the thickness direction, so that the sheet 30A is easily aligned with the surface of the mold 84. The bend-easy part 34B makes it easy for the sheet 30A to bend along the inner surface of the groove 85 of the mold 84 when the middle part of the sheet 30A is placed in the groove 85. The bend-easy part 34A makes it easy for the part of the sheet 30A that becomes the fixed part 32 to bend so as to approach parallel to the sheet 30B. As a result, as shown in FIG. 5, both side ends of the sheet 30A are easily supported by the second support surface 87.

[0054] The linear transmission members 20 are set on the sheet 30A in the groove 85. Since the sheet 30A is curved along the inner surface of the groove 85, even if a plurality of linear transmission members 20 are placed in the groove 85, the linear transmission members 20 are unlikely to spill out of the groove 85.

[0055] Sheet 30B is set on top of linear transmission member 20. The middle portion along the width direction of sheet 30B covers linear transmission member 20. Both side ends along the width direction of sheet 30B contact both side ends of sheet 30A, respectively. The fusion layer of sheet 30A contacts the fusion layer of sheet 30B. Horn 82 is applied to the outer surface of each of the both side ends of sheet 30B, and the fusion layer of sheet 30A and the fusion layer of sheet 30B are fused to each other to form fixed portion 32.

[0056] The easy-to-bend portions 34 make the sheet 30A easier to bend when the sheet 30A is set in the mold 84. The easy-to-bend portions 34 do not need to make the sheet 30A easier to bend than the sheet 30B. The sheet 30A may be easier or harder to bend than the sheet 30B. The ease of bending of the sheet 30A and the ease of bending of the sheet 30B may be about the same. The sheet 30A may be easier to bend than the sheet 30B due to the presence of the easy-to-bend portions 34.

[0057] <Comparative Example> FIG. 6 is a diagram illustrating a process for manufacturing a wiring member according to a comparative example.

[0058] In the example shown in Fig. 6, a sheet 90 not having the easy-to-bend portion 34 is used instead of the sheet 30A. The other members are the same as those in the example shown in Fig. 5. Moreover, the configuration of the sheet 90 is the same as that of the sheet 30A, except that the easy-to-bend portion 34 is not formed.

[0059] As shown in FIG. 6, when the widthwise intermediate portion of the sheet 90 is supported by the first support surface 86, the sheet 90 curves from the portion in contact with the first support surface 86 toward both widthwise ends. Since the easy-to-bend portion 34 is not formed in the sheet 90, the sheet 90 is unlikely to be in a state along the surface of the mold 84. Since the easy-to-bend portion 34B is not formed in the sheet 90, the sheet 90 is unlikely to be in a state along the first corner portion 89A, and a space may be generated between the sheet 90 and the first corner portion 89A. Therefore, the accommodation space in the groove 85 is small. Therefore, when a plurality of linear transmission members 20 are accommodated in the groove 85, the linear transmission members 20 are likely to overflow from the groove 85. Furthermore, since the easy-to-bend portion 34A is not formed in the sheet 90, the sheet 90 is unlikely to be in a state along the second corner portion 89B, and a space may be generated between the sheet 90 and the second corner portion 89B. Due to the presence of spaces between the sheet 90 and the first corner portion 89A and between the sheet 90 and the second corner portion 89B, the widthwise ends of the sheet 90 are less likely to be supported in a predetermined supporting manner by the second support surface 87.

[0060] For example, in the case of a sheet 90 with high rigidity, both side ends of the sheet 90 are maintained in a state of extending outside the groove 85 toward the anvil 84 without bending, as shown in FIG. 6. In this state, when the sheet 30B is placed over the sheet 90 and the horn 82 is applied to the sheet 90 and fused, the desired position may not be fused at the end of the width direction of the sheet 90, or one part may overlap with another part in the thickness direction, resulting in unevenness in the finish of the fixed portion. In addition, for example, in the case of a sheet 90 with low rigidity, both side ends of the sheet 90 may bend outside the groove 85 toward the anvil 84 and be supported by the second support surface 87. However, the sheet 90 may bulge at the positions of the first corner portion 89A and the second corner portion 89B. For this reason, in this case as well, the desired position may not be fused at the end of the width direction of the sheet 90, or one part may overlap with another part in the thickness direction, resulting in unevenness in the finish of the fixed portion. If the widthwise end portions of sheet 90 are fused to sheet 30B while portions of the sheet 90 overlap in the thickness direction, the thickness of the wiring member may increase.

[0061] <Effects, etc.> According to the wiring member 10 configured as above, when the fixing portion 32 is provided with the clamping portion 31 clamping the electric wire, the portion of the sheet 30A that becomes the fixing portion 32 is easily bent by the easy-to-bend portion 34 so as to approach parallelism with the sheet 30B. This makes it easier to provide the fixing portion 32. With the sheet 30A supported by the mold 84, overlapping of one portion with another portion in the thickness direction is suppressed at the widthwise end portion of the sheet 30A, and an increase in the thickness dimension of the wiring member 10 is suppressed.

[0062] The easy-to-bend portion 34 has an easy-to-bend portion 34A provided at the inner end of the fixed portion 32 along the width direction of the sheet 30A. This makes it easier for the portion of the sheet 30A that will become the fixed portion 32 to bend closer to being parallel to the sheet 30B. This makes it easier to provide the fixed portion 32.

[0063] Further, the easy-to-bend portion 34 has an easy-to-bend portion 34B provided at a position closer to the linear transmission member 20 than the easy-to-bend portion 34A along the width direction of the sheet 30A. This makes it easier for the sheet 30A to bend along the inner surface of the groove 85 of the die 84 when the clamping portion 31 of the sheet 30A is placed in the groove 85 of the die 84.

[0064] Moreover, the fixing portion 32 is a fused portion 32. This allows the sheets 30A and 30B to be fixed directly without using another member. At this time, the sheets 30A and 30B come into contact with each other at the fixing portion 32, so the dimension by which the sandwiching portion 31 and the fixing portion 32 are separated in the thickness direction becomes larger than when an adhesive or the like is interposed between them. Even in this case, the presence of the easily bendable portion 34 makes it easier for the sheets 30A and 30B to approach each other at the fixing portion 32, making it easier to provide the fixing portion 32.

[0065] Moreover, the fixed portion 32 is an ultrasonically fused portion 32, and a horn mark 33 is formed on the outer surface of the sheet 30B. As a result, the sheet 30A is placed on the anvil 84, and ultrasonically fused so that the horn 82 comes into contact with the sheet 30B. At this time, because the sheet 30A has the easy-to-bend portion 34, when the sheet 30A is placed on the anvil 84 with the groove 85, the portion that becomes the fixed portion 32 is easily bent so as to approach parallel to the sheet 30B.

[0066] [Embodiment 2] A wiring member according to embodiment 2 will be described. Fig. 7 is a schematic plan view showing the wiring member 110 according to embodiment 1. Fig. 8 is a partially enlarged view of Fig. 7. Fig. 9 is a cross-sectional view taken along line IX-IX in Fig. 8. In the description of this embodiment, components similar to those described so far are given the same reference numerals and descriptions thereof will be omitted.

[0067] In the wiring member 110 of this example, the planar shapes of the sheets 130A and 130B are different from the planar shapes of the sheets 30A and 30B in the wiring member 10. The sheet 130A is provided partially on the sheet 130B along the extension direction of the linear transmission member 20. As a result, since the sheet 130A is smaller than the sheet 130B along the extension direction of the linear transmission member 20, the easy-to-bend portion 34 can be easily provided on the sheet 130A. Furthermore, since the sheet 130A is smaller, the wiring member 110 becomes lighter.

[0068] The sheets 130A are provided at multiple locations on the sheet 130B at intervals along the extension direction of the linear transmission member 20. The multiple sheets 130A are arranged so that the linear transmission member 20 can be maintained along a predetermined path on the sheet 130B. For example, the multiple sheets 130A are arranged at curved path portions of the linear transmission member 20, ends of straight path portions, intermediate portions of relatively long straight path portions, and the like.

[0069] Furthermore, in the wiring member 110, the sheet 130B has an extension portion 36 extending laterally from the fixed portion 32. A linear transmission member 40 other than the linear transmission member 20 is disposed in the extension portion 36. The covering layer 42 of the other linear transmission member 40 is fused to the extension portion 36. This allows the linear transmission member 20 and the other linear transmission member 40 to be easily held by the sheets 130A and 130B. In the example shown in FIG. 9, the extension portion 36 is provided on only one fixed portion 32, but the extension portion 36 may be provided on two fixed portions 32. Also, the extension portion 36 may be provided on the sheet 130A instead of the sheet 130B.

[0070] The linear transmission member 40 includes a transmission line main body 41 and a covering layer 42, similar to the linear transmission member 20. The transmission line main body 41 and the covering layer 42 can have the configurations described for the transmission line main body 21 and the covering layer 22. The linear transmission member 40 is more easily fused to the sheet 130B than the linear transmission member 20. The relationship between the linear transmission member 20 and the linear transmission member 40 may correspond to the relationship between the special wire and the normal wire described in the first embodiment. The linear transmission member 20 is the special wire, and the linear transmission member 40 is the normal wire. In this case, the linear transmission member 40 is a single-core electric wire. The single-core electric wire has one core wire and a covering layer that covers the core wire.

[0071] The sheet 130B and the linear transmission member 40 are fused together by a resin contained in at least one of the fusion layer of the sheet 130B and the covering layer 22 of the linear transmission member 40. It is preferable that the material of the covering layer 22 and the material of the fusion layer are compatible. Here, the covering layer 42 of the linear transmission member 40 and the fusion layer of the sheet 130B are made of the same resin. For example, the resin material constituting the fusion layer and the resin material constituting the covering layer 42 are PVC or polyolefin.

[0072] A connector C is provided at the end of the linear transmission members 20, 40. The linear transmission members 20, 40 are connected to equipment, etc. via the connector C. The ends of the linear transmission members 20, 40 extend outward from the end of the sheet 130B. The connector C is provided on the outside of the sheet 130B. The connector C is provided away from the sheet 130B. The connector C is not fixed to the sheet 130B. The ends of the linear transmission members 20, 40 may be located on the sheet 130B. The connector C may be provided on the sheet 130B. The connector C may be fixed to the sheet 130B.

[0073] In the example shown in FIG. 7, the paths of the linear transmission members 20, 40 on the sheet 130B are configured by a combination of straight paths and curved paths. The sheet 130B is also formed in a shape that combines straight paths and curved paths. In addition, the portions of the multiple linear transmission members 20, 40 that include the branching portion 12 are fixed to the sheet 130B. This maintains the shape of the branching portion 12. The sheet 130B is also formed in a branched shape that corresponds to the branching portion 12. Most of the sections along the extension direction of the linear transmission members 20, 40 are fixed to the sheet 130B, and most of the paths of the linear transmission members 20, 40 can be maintained as the same path as a predetermined path in the vehicle. This allows the linear transmission members 20, 40 to be easily routed along a predetermined path when the wiring member 110 is assembled to the vehicle.

[0074] [Note] Although the above description has been given assuming that the easy-to-bend portions 34A and 34B are provided, this is not a required configuration. For example, one of the easy-to-bend portions 34A and 34B may be omitted. Also, for example, the easy-to-bend portion 34 may be provided at a position different from the easy-to-bend portions 34A and 34B. A plurality of perforations 34 parallel to each other may be formed at the position of one easy-to-bend portion 34.

[0075] The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually inconsistent. [Explanation of symbols]

[0076] 10, 110 Wiring material 12 Branch 20, 40 Linear transmission member 21, 41 Transmission line body 22, 42 Covering layer 30, 30A, 30B, 130A, 130B Sheets 31 Clamping part 32 Fixed part (fused part, ultrasonic welded part) 33 Horn mark 34, 34A, 34B Easy-to-bend section (perforation) 35 Break 36 Extension 80 Ultrasonic fusion machine 82 Horn 84 Anvil 85 Groove 86 1st support surface 87 Second support surface 88 Side 90 sheets C Connector

Claims

1. A linear transmission member; a first sheet and a second sheet sandwiching the linear transmission member; Equipped with the first sheet has a clamping portion that clamps the linear transmission member between itself and the second sheet, and a fixing portion that protrudes from the clamping portion toward a side of the linear transmission member and is fixed to the second sheet, the first sheet and the second sheet are closer to each other in a thickness direction at a position of the fixing portion than at a position of the clamping portion, the first sheet has flexibility capable of following the bending of the linear transmission member, A wiring member, wherein the first sheet is formed with an easy-to-bend portion that makes it easy to bend the first sheet between the clamping portion and the fixing portion.

2. The wiring member according to claim 1 , A wiring member, wherein the first sheet is partially provided on the second sheet along an extension direction of the linear transmission member.

3. The wiring member according to claim 1 or 2, The wiring member includes a first easy-to-bend portion provided at an inner end of the fixed portion along a width direction of the first sheet.

4. The wiring member according to claim 3, The easy-to-bend portion includes a second easy-to-bend portion provided at a position closer to the linear transmission member than the first easy-to-bend portion along the width direction of the first sheet.

5. The wiring member according to any one of claims 1 to 4, The wiring member, wherein the fixing portion is a fusion portion.

6. The wiring member according to claim 5 , The fixing portion is an ultrasonic fusion portion, A wiring member, wherein a horn mark is formed on an outer surface of the second sheet.

7. The wiring member according to claim 5 or 6, the first sheet or the second sheet has an extension portion extending laterally of the fixing portion, a linear transmission member different from the linear transmission member is disposed on the extension portion, A wiring member, wherein a coating layer of the other linear transmission member is fused to the extending portion.

8. A linear transmission member, a first sheet and a second sheet sandwiching the linear transmission member; Equipped with the first sheet has a clamping portion that clamps the linear transmission member between itself and the second sheet, and a fixing portion that protrudes from the clamping portion toward a side of the linear transmission member and is fixed to the second sheet, the first sheet and the second sheet are closer to each other in a thickness direction at a position of the fixing portion than at a position of the clamping portion, The first sheet has a bending part that makes it easy to bend the first sheet between the clamping part and the fixing part, The easy-to-bend portion includes a first easy-to-bend portion provided at an inner end of the fixed portion along a width direction of the first sheet, A wiring member, wherein there is no easy-to-bend portion on the inner side of the first easy-to-bend portion along the width direction of the first sheet.

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