Wiring materials

Abstract

To provide a technology that makes a fine linear transmission member be able to endure a more larger tensile load, and can make a width dimension of a portion near an end small while maintaining a portion far from the end flat.SOLUTION: A wiring member 10 includes a wiring body 20 including a plurality of linear transmission members 22, a first sheet 28 to which the plurality of linear transmission members 22 are fixed, and a second sheet 30 to which at least some of the linear transmission members 22 among the plurality of linear transmission members 22. and a connector 40 provided at the ends of the plurality of linear transmission members 22. The second sheet 30 is provided between the first sheet 28 and the connector 40. Two or more linear transmission members 22 including all of the thinnest linear transmission members 22 among the plurality of linear transmission members 22 are fixed to the second sheet 30.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] Patent Document 1 discloses a wire harness in which electric wires are welded to a functional exterior member formed in a sheet shape. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-137208 Summary of the Invention [Problem to be solved by the invention]

[0004] It is desirable to be able to reduce the width of the portion of a flat wiring member closer to the terminal while keeping the portion farther from the terminal flat.It is also desirable to make a thin linear transmission member able to withstand a larger impact load.

[0005] Therefore, the object is to provide a technology that enables a thin linear transmission member to withstand a larger tensile load and that can reduce the width dimension of the portion close to the terminal while keeping the portion farther from the terminal flat. [Means for solving the problem]

[0006] The wiring member of the present disclosure comprises a wiring body including a plurality of linear transmission members, a first sheet to which the plurality of linear transmission members are fixed, and a second sheet to which at least some of the plurality of linear transmission members are fixed, and a connector provided at the end of the plurality of linear transmission members, wherein the second sheet is provided between the first sheet and the connector, and two or more linear transmission members including all of the thinnest linear transmission members among the plurality of linear transmission members are fixed to the second sheet. [Effects of the Invention]

[0007] According to the present disclosure, the thin linear transmission member can withstand a larger tensile load, and the width dimension of the portion close to the terminal can be reduced while the portion farther from the terminal is kept flat. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic plan view showing the wiring member according to the first embodiment. [Figure 2] FIG. 2 is an enlarged view of area A in FIG. [Figure 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Figure 5] FIG. 5 is an enlarged view of region B in FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7] FIG. 7 is an explanatory view showing a process for manufacturing the wiring member according to the first embodiment. [Figure 8] FIG. 8 is an explanatory view showing a process for manufacturing the wiring member according to the first embodiment. 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 assembly including a plurality of linear transmission members, a first sheet to which the plurality of linear transmission members are fixed, and a second sheet to which at least some of the plurality of linear transmission members are fixed; and a connector provided at the ends of the plurality of linear transmission members, wherein the second sheet is provided between the first sheet and the connector, and two or more linear transmission members, including all of the thinnest linear transmission members among the plurality of linear transmission members, are fixed to the second sheet. By providing the second sheet between the first sheet and the connector, the portion of the first sheet far from the terminal of the wiring assembly can be kept flat, while the width dimension of the portion of the second sheet close to the terminal can be reduced. Furthermore, by fixing two or more linear transmission members, including all of the thinnest linear transmission members among the plurality of linear transmission members, to the second sheet, the thinnest linear transmission member can withstand a greater tensile load.

[0012] (2) In the wiring member of (1), the plurality of linear transmission members may include, as the thinnest linear transmission member, an electric wire having a conductor cross-sectional area of ​​0.35 square millimeters or less. This increases the number of locations in the vehicle where electric wires having a conductor cross-sectional area of ​​0.35 square millimeters or less can be easily used, thereby reducing the cost and weight of the vehicle wiring member.

[0013] (3) In the wiring member of (1) or (2), the distance between the connector and the second sheet may be 120 millimeters or more and 260 millimeters or less, which allows the linear transmission members to withstand a greater tensile load while maintaining ease of accommodating the ends of the multiple linear transmission members in the connector housing.

[0014] (4) In any one of the wiring members (1) to (3), the distance between the first sheet and the second sheet may be two-thirds or more of the width of the first sheet at the end of the first sheet, which makes it easy to reduce the width of the portion of the wiring body closer to the terminal while keeping the portion farther from the terminal flat.

[0015] (5) In any one of the wiring members (1) to (4), the width dimension of the wiring body at the position of the second seat may be smaller than the width dimension of the wiring body at the position of the first seat. This prevents the wiring member from interfering with the surrounding members even when the gap in the area of ​​the wiring member arrangement region in the vehicle that is close to the connector is narrowed by the surrounding members.

[0016] (6) In any one of the wiring members (1) to (5), all of the plurality of linear transmission members may be fixed to the second sheet. This makes it easier for the linear transmission members to withstand a larger tensile load. Also, it is not necessary to distinguish between those fixed to the second sheet and those not fixed to the second sheet among the plurality of linear transmission members.

[0017] (7) In the wiring member of any one of (1) to (5), the plurality of linear transmission members may include a first linear transmission member that is the thinnest linear transmission member and a second linear transmission member that is thicker than the first linear transmission member, and at least one of the second linear transmission members may not be fixed to the second sheet. This reduces the area on the second sheet where the second linear transmission member is fixed.

[0018] (8) In the wiring member of any one of (1) to (7), the plurality of linear transmission members may include a plurality of the thinnest linear transmission members, and only the plurality of thinnest linear transmission members may be fixed to the second sheet. Even if only the thinnest linear transmission member is fixed to the second sheet, the load can be distributed to the other thinnest linear transmission members or the second sheet, allowing the thinnest linear transmission member to withstand a larger tensile load.

[0019] [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.

[0020] [Embodiment 1] The following describes the wiring member according to embodiment 1. Fig. 1 is a schematic plan view showing a wiring member 10 according to embodiment 1.

[0021] The wiring member 10 includes a wiring body 20 and a connector 40. The wiring body 20 includes a plurality of linear transmission members 22, a first sheet 28, and a second sheet 30. The connector 40 is provided at the ends of the plurality of linear transmission members 22. The plurality of linear transmission members 22 are fixed to the first sheet 28. The second sheet 30 is provided between the first sheet 28 and the connector 40. At least some of the plurality of linear transmission members 22 are fixed to the second sheet 30. Two or more linear transmission members 22, including all of the thinnest linear transmission members 22A among the plurality of linear transmission members 22, are fixed to the second sheet 30.

[0022] Here, three connectors 40A, 40B, and 50 are provided. Second sheets 30A and 30B are provided in portions corresponding to two of the three connectors 40A, 40B, and 50, respectively. No second sheet 30 is provided in a portion corresponding to one of the three connectors 40A, 40B, and 50, respectively. When it is necessary to distinguish between the two connectors 40A and 40B, they may be referred to as connectors 40A and 40B, and when it is not necessary to distinguish between them, they may be referred to as connector 40.

[0023] Each of the plurality of linear transmission members 22 is a linear member that transmits electricity, light, etc. It is assumed that the plurality of linear transmission members 22 are members that connect components in a vehicle together.

[0024] The linear transmission member 22 includes a transmission line body 23 and a coating layer 24 (see FIG. 3). 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 strands. The strands are made of copper, copper alloy, aluminum, aluminum alloy, or the like. 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. The resin material that constitutes the coating layer 24 is not particularly limited and can be set appropriately. For example, the linear transmission member 22 may be a general electric wire having a core wire and the coating layer 24 surrounding the core wire, or may be a shielded wire, twisted wire, enameled wire, nichrome wire, optical fiber, or the like.

[0025] 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.

[0026] 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 22 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 22 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.

[0027] The plurality of linear transmission members 22 includes, as the thinnest linear transmission member 22A, an electric wire 22A having a conductor cross-sectional area equal to or smaller than 0.35 square millimeters. An electric wire having a conductor cross-sectional area of ​​0.35 square millimeters may be an electric wire conforming to 0.35 sq in the JIS standard or an electric wire conforming to AWG22 in the American wire gauge standard, or may be an electric wire having a conductor cross-sectional area slightly larger or slightly smaller than 0.35 square millimeters. An electric wire having a conductor cross-sectional area smaller than 0.35 square millimeters may be, for example, an electric wire conforming to a standard having a conductor cross-sectional area smaller than 0.35 sq in the JIS standard (e.g., an electric wire of 0.13 sq), or an electric wire conforming to a standard having a conductor cross-sectional area smaller than AWG22 in the American wire gauge standard (e.g., an electric wire of AWG26).

[0028] The wiring member 10 of this example includes an electric wire 22A and an electric wire 22B that is thicker than the electric wire 22A. The electric wire 22A is an example of a first linear transmission member 22A that is the thinnest linear transmission member 22A. The electric wire 22B is an example of a second linear transmission member 22B that is thicker than the first linear transmission member 22A.

[0029] The first sheet 28 and the second sheet 30 are not particularly limited in material, structure, etc., as long as they are capable of fixing the linear transmission member 22. Here, the first sheet 28 and the second sheet 30 are the same type of sheet. In this case, the first sheet 28 and the second sheet 30 can be made by cutting one type of sheet to an appropriate size. This eliminates the need to manage multiple types of sheets with different physical properties. However, the first sheet 28 and the second sheet 30 may also be different types of sheets. This allows sheets with appropriate physical properties to be used for the first sheet 28 and the second sheet 30, respectively. Hereinafter, when it is not necessary to distinguish between the first sheet 28 and the second sheet 30, they may be referred to as sheets 28 and 30.

[0030] Regarding the material constituting the sheets 28, 30, here, the sheets 28, 30 are formed from a resin material. Materials other than resin, such as metals and inorganic substances, may also be used as the material constituting the sheets 28, 30. The structure of the sheets 28, 30 may be a single-layer structure or a multi-layer structure of two or more layers.

[0031] The sheets 28, 30 may have a two-layer structure including a first layer and a second layer. 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 such resin material is not particularly limited, and polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), etc. can be used.

[0032] The structure of the bonding layer is not particularly limited. For example, the bonding layer may be a sheet having a uniform solid cross section (also called a non-foamed sheet or solid sheet). For example, the bonding layer may be a foamed sheet. For example, the bonding layer may be a fibrous sheet such as a knitted fabric, woven fabric, or nonwoven fabric. One surface of the first layer is one main surface of the sheets 28 and 30.

[0033] The second layer is an additional layer. The second layer may be made of a different material or have a different structure than the adhesive layer. The second layer enhances the functionality of the adhesive layer or adds functionality not present in the adhesive layer to the sheets 28, 30. The material constituting the second layer may be any of the materials described for the adhesive layer above, as well as metals, inorganic materials, etc. The structure of the second layer may be any of the structures described for the adhesive layer above. One surface of the second layer is the other main surface of the sheets 28, 30.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] The sheets 28, 30 may be made of soft materials. For example, the first layer may be a solid sheet made of soft resin such as soft PVC, and the second layer may be a nonwoven fabric made of PET, making the sheets 28, 30 soft. For example, the sheets 28, 30 may have flexibility that allows them to follow the bending of the linear transmission member 22. The wiring member 10 may be made bendable in the thickness direction (bending such that the folds run along the main surface of the sheet).

[0038] 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 first sheet 28, 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 as a combination of straight paths and curved paths. The first sheet 28 may also be configured as a combination of straight paths and curved paths. The multiple linear transmission members 22 may be fixed to the first sheet 28 in a manner such that branch lines branch off from a trunk line. The first sheet 28 may also be formed in a shape such that a portion where a branch line is fixed branches off from a portion where a trunk line is fixed. Here, the multiple linear transmission members 22 are curved on the first sheet 28. The multiple linear transmission members 22 are also branched on the first sheet 28.

[0039] The second sheet 30 is located closer to the connector 40 than the first sheet 28. The connector 40 and the second sheet 30 are spaced apart from each other along the extension direction of the linear transmission member 22. The first sheet 28 and the second sheet 30 are separated from each other. The first sheet 28 and the second sheet 30 are spaced apart from each other along the extension direction of the linear transmission member 22. The connector 40, the first sheet 28, and the second sheet 30 are connected via the linear transmission member 22. The second sheet 30 is shorter than the first sheet 28 along the extension direction of the linear transmission member 22. The linear transmission member 22 is linearly arranged on the second sheet 30.

[0040] The sheets 28, 30 and the linear transmission member 22 may be fixed at contact points, non-contact points, or both. Contact point fixation means that the sheets 28, 30 and the linear transmission member 22 are fixed by adhering to each other at their contact points. Non-contact point fixation means that the sheets 28, 30 and the linear transmission member 22 are not fixed at contact points, and for example, sewing thread, a cover, adhesive tape, or the like is used to press the linear transmission member 22 toward the sheets 28, 30, or to sandwich the sheets 28, 30 and the linear transmission member 22, thereby maintaining the state.

[0041] 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 refers to the sheets 28, 30 and the linear transmission member 22 being indirectly attached and fixed via an adhesive, pressure-sensitive adhesive, double-sided adhesive tape, or the like provided between them. Direct fixing of the contact portions refers to the sheets 28, 30 and the linear transmission member 22 being directly attached and fixed without the use of a separate adhesive or the like. In direct fixing of the contact portions, for example, the sheets 28, 30 and the linear transmission member 22 may be attached and fixed by melting a resin contained in at least one of them.

[0042] 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.

[0043] The means for achieving the direct fixation at the contact sites is not particularly limited, and known means such as fusion can be used. For example, when the direct fixation at the contact sites is achieved 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 the direct fixation at the contact sites is achieved by these means, the sheets 28, 30 and the linear transmission member 22 are directly fixed at the contact sites by that means. Specifically, for example, when the direct fixation at the contact sites is achieved by ultrasonic fusion, the sheets 28, 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.

[0044] Here, the linear transmission member 22 is fused and fixed to the sheet. 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 covering layer 24. The covering layer 24 is made of a material that can be fused to the fusion layer. The resin material that constitutes the covering layer 24 is the same type as the resin material that constitutes the fusion layer. For example, the resin material that constitutes the fusion layer and the resin material that constitutes the covering layer 24 are PVC or polyolefin.

[0045] The fixing portions (fused portions) between the sheets 28, 30 and the linear transmission member 22 may be provided at multiple intervals along the extension direction of the linear transmission member 22. The interval between the fixing portions is not particularly limited and can be set as appropriate. However, the fixing portions between the sheets 28, 30 and the linear transmission member 22 may be provided continuously along the extension direction of the linear transmission member 22. Furthermore, the fixing portion between the second sheet 30 and the linear transmission member 22 may be provided at only one location along the extension direction of the linear transmission member 22.

[0046] The connectors 40, 50 are provided at the end of the linear transmission member 22. The connectors 40, 50 are connected to connectors provided on a mating component, thereby connecting the linear transmission member 22 to the mating component. In other words, the wiring member 10 is used as a wiring member 10 that electrically (or optically) connects various components to each other in a vehicle or the like. The connectors 40, 50 are provided away from the seats 28, 30.

[0047] The connector 40 includes a connector housing 42 and connector terminals 44 (see FIG. 7). The connector 50 similarly includes a connector housing and connector terminals. The connector housing 42 is an injection-molded product made of insulating resin. Typically, a cavity is formed in the connector housing 42. The connector terminals 44 are accommodated in the cavity. The connector terminals 44 may be provided first at the end of the linear transmission member 22. The linear transmission member 22 with the terminals 44 attached may be inserted into the cavity. The manner of connection between the terminals 44 and the linear transmission member 22 is not particularly limited, and may be crimping, welding, pressure welding, or the like.

[0048] <Regarding the terminal area to which the connector 40A belongs> The terminal area to which connector 40A belongs will be described with reference to Figures 2 to 4 in addition to Figure 1. Figure 2 is an enlarged view of area A (the terminal area to which connector 40A belongs) in Figure 1. Figure 3 is a cross-sectional view taken along line III-III in Figure 2. Figure 4 is a cross-sectional view taken along line IV-IV in Figure 2.

[0049] The connector 40A is provided at an end of the electric wire 22A. The electric wire 22A extends from the connector 40A. All the electric wires 22A connected to the connector 40A have the same diameter. The electric wire 22A is the thinnest electric wire 22A in the wiring member 10. All the electric wires 22A connected to the connector 40A are fixed to the second sheet 30A.

[0050] The width dimension of the wiring body 20 at the position of the second sheet 30A is smaller than the width dimension of the wiring body 20 at the position of the first sheet 28 (the position of the end of the first sheet 28 closest to the second sheet 30A). The wiring body 20 at the position of the first sheet 28 is kept flat. In the example shown in FIG. 3, the width dimension of the wiring body 20 at the position of the second sheet 30A is reduced by being rolled. The width dimension of the wiring body 20 at the position of the second sheet 30A may be reduced by being folded. The width dimension of the wiring body 20 at the position of the second sheet 30A may be reduced by bending and deforming the second sheet 30A in the thickness direction.

[0051] The connector housing 42 has cavities formed in multiple stages. The multiple electric wires 22A are arranged in multiple stages on the rear end surface of the connector housing 42. The multiple electric wires 22A are arranged in a row at the position of the first sheet 28. The multiple electric wires 22A change their state between being arranged in a row and being separated into multiple stages between the first sheet 28 and the connector 40A. In the example shown in FIG. 2, the multiple electric wires 22A change their state between being arranged in a row and being separated into multiple stages between the first sheet 28 and the second sheet 30A. Furthermore, the arrangement of the multiple electric wires 22A is changed between the first sheet 28 and the second sheet 30A in accordance with the arrangement of the cavities. The arrangement of the multiple electric wires 22A is not changed between the second sheet 30A and the connector 40A in accordance with the arrangement of the cavities. However, the arrangement of the plurality of wires 22A between the second sheet 30A and the connector 40A may be changed in accordance with the arrangement of the cavities.

[0052] <Regarding the terminal area to which the connector 40B belongs> The terminal area to which connector 40B belongs will be described with reference to Fig. 5 and Fig. 6 in addition to Fig. 1. Fig. 5 is an enlarged view of area B (the terminal area to which connector 40B belongs) in Fig. 1. Fig. 6 is a cross-sectional view taken along line VI-VI in Fig. 5.

[0053] The connector 40B is provided at the ends of the electric wires 22A and 22B. The electric wires 22A and 22B extend from the connector 40B. The electric wire 22B is thicker than the electric wire 22A. All of the electric wires 22A are fixed to the second sheet 30B. None of the electric wires 22B are fixed to the second sheet 30B. A plurality of electric wires 22A are included. Each electric wire 22A has the same thickness. Therefore, the plurality of electric wires 22 includes a plurality of electric wires 22A as the thinnest electric wire. Of the plurality of electric wires 22, only the thinnest electric wire 22A is fixed to the second sheet 30B.

[0054] The second sheet 30B is not bent. Therefore, the wiring body 20 is kept substantially flat even at the position of the second sheet 30B. The second sheet 30B may be bent like the second sheet 30A. Like the unbent second sheet 30B, the second sheet 30A may also be unbent and kept flat.

[0055] <About the terminal area to which the connector 50 belongs> The connector 50 is provided at the end of the electric wire 22B. The electric wire 22B extends from the connector 50. The electric wire 22B is thicker than the electric wire 22A. The thinnest electric wire 22A is not connected to the connector 50. The second sheet 30 is not provided in the terminal region where the connector 50 belongs. All the electric wires 22B extending from the first sheet 28 are connected directly to the connector 50.

[0056] <Manufacturing method> 7 and 8 are explanatory views showing how the wiring member 10 according to the first embodiment is manufactured.

[0057] Here, as shown in FIG. 7 , after the plurality of linear transmission members 22 are fixed to the first sheet 28 and the second sheet 30, the ends of the plurality of linear transmission members 22 are processed. Such processing steps include, for example, a step of removing the coating layer 24 from the ends of the linear transmission members 22, a step of providing terminals 44 at the ends of the linear transmission members 22, and a step of inserting the terminals 44 provided at the ends of the linear transmission members 22 into the connector housing 42. FIG. 7 shows four electric wires 22 lined up from left to right in the order of the processing steps. Note that FIG. 7 is an example to illustrate the plurality of processing steps, and the electric wires do not necessarily have to be processed as shown in FIG. 7 . For example, the four electric wires 22 may move to the next processing step after one processing step has been completed for all of the electric wires 22.

[0058] Of the four electric wires 22 in Fig. 7, the leftmost electric wire 22 is shown in a state before the coating layer 24 is removed. Of the four electric wires 22 in Fig. 7, the second electric wire 22 from the left is shown in a state after the coating layer 24 is removed and the core wire 23 is exposed. Of the four electric wires 22 in Fig. 7, the third electric wire 22 from the left is shown to have a terminal 44 attached to the end portion after the coating layer 24 is removed. Of the four electric wires 22 in Fig. 7, the rightmost electric wire 22 is shown in a state after the terminal 44 is attached.

[0059] When all the electric wires 22 are housed in the connector housing 42, the state shown in Fig. 8 is reached. From this state, the second sheet 30A is bent to reach the state shown in Fig. 2. Note that if the second sheet 30A is not bent, the wiring member 10 may be completed in the state shown in Fig. 8.

[0060] <Regarding the distance between the second sheet 30 and the connector 40> The distance between the second sheet 30 and the connector 40 will be described with reference to FIG. 8. When the load applied to the electric wires 22 is generated by the movement of the connector 40, the second sheet 30 is preferably provided in a position close to the connector 40. The distance between the second sheet 30 and the connector 40 (dimension D1 in FIG. 8) at the finished product stage may be 0 millimeters. The distance between the second sheet 30 and the connector 40 may be greater than 0 millimeters. From the viewpoint of maintaining ease of processing the ends of the multiple electric wires 22, it is preferable that the second sheet 30 and the connector 40 are spaced apart. For example, the second sheet 30 and the connector 40 may be spaced apart by 50 millimeters or more, or may be spaced apart by 120 millimeters or more.

[0061] From the viewpoint of maintaining ease of processing the ends of the multiple electric wires 22, it is preferable that the distance between the second sheet 30 and the connector 40 be 120 millimeters or more in the finished product. In other words, when the above processing step is performed after the multiple electric wires 22 are fixed to the second sheet 30, if the dimension by which the multiple electric wires 22 protrude from the second sheet 30 is small, it may be difficult to hold one electric wire 22 when processing it, or adjacent electric wires 22 may get in the way. In this case, if the distance between the second sheet 30 and the connector 40 is 120 millimeters or more in the finished product, it is easy to hold one electric wire 22 when processing it, and adjacent electric wires 22 are less likely to get in the way. In particular, when processing the ends of the multiple electric wires 22 using an automated machine, it is preferable that the distance between the connector 40 and the second sheet 30 be 120 millimeters or more in the finished product. It should be noted that the protrusion dimension of the electric wire 22 from the second sheet 30 during the manufacturing process, particularly before the step of removing the covering layer 24, is greater than 120 millimeters.

[0062] In terms of tensile load resistance, the distance between the second sheet 30 and the connector 40 may be 2000 mm or less, 500 mm or less, or 260 mm or less. If the dimension of the thinnest electric wire 22 protruding from the second sheet 30 is large, when a tensile load is applied to the electric wire 22, it becomes difficult for the other electric wires 22 and the second sheet 30 to share the tensile load.

[0063] In consideration of these points, the distance between the second sheet 30 and the connector 40 may be 0 mm or more and 2000 mm or less, 50 mm or more and 500 mm or less, or 120 mm or more and 260 mm or less. Of course, the distance between the second sheet 30 and the connector 40 is not limited to these ranges and can be set as appropriate.

[0064] <Regarding the distance between the first sheet 28 and the second sheet 30> The distance between the first sheet 28 and the second sheet 30 will be described with reference to FIG.

[0065] From the viewpoint that wiring body 20 is likely to be kept flat at the position of first sheet 28 when the width dimension of wiring body 20 is reduced at the position of second sheet 30, it is preferable that the distance between first sheet 28 and second sheet 30 (dimension D2 in Figure 8) be at least two-thirds of the width dimension of first sheet 28 at the end of first sheet 28 (dimension W in Figure 8).

[0066] That is, the first sheet 28 and the second sheet 30 are connected via the electric wires 22. When the second sheet 30 is bent, the arrangement of the electric wires 22 on the second sheet 30 changes from the arrangement of the electric wires 22 on the first sheet 28. At this time, if there are electric wires 22 among the multiple electric wires 22 with different shortest path lengths between the first sheet 28 and the second sheet 30, the electric wire 22 with the longest shortest path length (for example, the electric wire 22 located at the end of the first sheet 28) may pull the first sheet 28 in a direction intersecting the extension direction of the electric wires 22, thereby applying a bending deformation force to the first sheet 28 in a direction following the second sheet 30. Receiving this force, the first sheet 28 may bend in a direction following the second sheet 30. At this time, if the distance between the first sheet 28 and the second sheet 30 is small, this force becomes large, and the first sheet 28 is more likely to bend in a direction following the second sheet 30. If the gap between first sheet 28 and second sheet 30 is large, this force becomes smaller, and this force is more likely to be absorbed by wire 22. If the gap between first sheet 28 and second sheet 30 is two-thirds or more of the width of first sheet 28 at the end of first sheet 28, wiring body 20 at the position of first sheet 28 is more likely to be kept flat even if wiring body 20 at the position of second sheet 30 is rolled or the like, thereby reducing the width.

[0067] Of course, the distance between the first sheet 28 and the second sheet 30 does not have to be two-thirds or more of the width of the first sheet 28 at the end of the first sheet 28. The distance between the first sheet 28 and the second sheet 30 may be less than two-thirds of the width of the first sheet 28 at the end of the first sheet 28.

[0068] 7 and 8, the arrangement of the linear transmission members 22 on the second sheet 30 is the same as the arrangement of the linear transmission members 22 at the end of the first sheet 28. The arrangement of the linear transmission members 22 on the second sheet 30 may be different from the arrangement of the linear transmission members 22 at the end of the first sheet 28. The arrangement of the linear transmission members 22 on the second sheet 30 may be aligned to match the arrangement of the linear transmission members 22 on the connector 40.

[0069] <Effects, etc.> In the wiring member 10 configured as described above, the second sheet 30 is provided between the first sheet 28 and the connector 40, thereby keeping the portion of the first sheet 28 farthest from the terminal of the wiring body 20 flat, while reducing the width of the portion of the second sheet 30 closest to the terminal. Furthermore, by fixing two or more linear transmission members 22, including all of the thinnest linear transmission members 22 among the plurality of linear transmission members 22, to the second sheet 30, the thinnest linear transmission member 22 can withstand a larger tensile load. More specifically, even if a load is applied to the thinnest linear transmission member 22A due to, for example, movement of the connector 40, if two or more linear transmission members 22, including the thinnest linear transmission member 22A, are fixed to the second sheet 30, the load applied to the thinnest linear transmission member 22A can be distributed to the second sheet 30 or other linear transmission members 22 fixed to the second sheet 30. This allows the thinnest linear transmission member 22A, which is subjected to a load due to, for example, movement of the connector 40, to withstand the load.

[0070] The plurality of linear transmission members 22 includes an electric wire 22A having a conductor cross-sectional area of ​​0.35 square millimeters or less as the thinnest linear transmission member 22A. This increases the number of locations in the vehicle where electric wires 22A having a conductor cross-sectional area of ​​0.35 square millimeters or less can be easily used, thereby reducing the cost and weight of the wiring member 10 for the vehicle.

[0071] In addition, the distance between the connector 40 and the second sheet 30 is 120 mm or more and 260 mm or less. This allows the ends of the multiple linear transmission members 22 to be easily housed in the connector housing 42 while enabling the linear transmission members 22 to withstand a greater tensile load.

[0072] Furthermore, the distance between first sheet 28 and second sheet 30 is at least two-thirds of the width of first sheet 28 at the end of first sheet 28. This makes it easy to reduce the width of the portion of wiring body 20 close to the terminal while keeping the portion far from the terminal flat.

[0073] Furthermore, the width dimension of the wiring body 20 at the position of the second seat 30A is smaller than the width dimension of the wiring body 20 at the position of the first seat 28. As a result, even if the gap (width) of a region of the arrangement area of ​​the wiring member 10 in the vehicle that is close to the connector 40A is narrowed by the peripheral member 80A as shown in Fig. 3, interference of the wiring member 10 with the peripheral member 80A is suppressed. Also, even if the gap (height) of a region of the arrangement area of ​​the wiring member 10 in the vehicle that is far from the connector 40A is narrowed by the peripheral member 80B as shown in Fig. 4, interference of the wiring member 10 with the peripheral member 80B is suppressed.

[0074] Furthermore, in the connector 40A, all of the multiple linear transmission members 22A extending from the connector 40A are fixed to the second sheet 30A. This makes it easier for the linear transmission members 22A to withstand a larger tensile load. Also, it is no longer necessary to distinguish between the multiple linear transmission members 22A that are fixed to the second sheet 30A and those that are not.

[0075] Furthermore, in connector 40B, the multiple linear transmission members 22 include a first linear transmission member 22A that is the thinnest linear transmission member 22A and a second linear transmission member 22B that is thicker than first linear transmission member 22A, and at least one of second linear transmission members 22B is not fixed to second sheet 30B. This allows the area on second sheet 30B where second linear transmission member 22B is fixed to be reduced.

[0076] Furthermore, in the connector 40A, only the thinnest linear transmission members 22A are fixed to the second sheet 30. This condition is considered to be one of the most stringent conditions for the durability of the linear transmission members 22A. However, even in this case, the thinnest linear transmission member 22A can withstand a larger tensile load by distributing the load to the other thinnest linear transmission members 22A or the second sheet 30. More specifically, if multiple linear transmission members 22A are fixed to the second sheet 30, even if a load is applied to one linear transmission member 22A due to, for example, movement of the connector 40A, the load can be distributed to the other linear transmission members 22A via the second sheet 30. As a result, the linear transmission members 22A that are subjected to a load due to, for example, movement of the connector 40A can also withstand the load.

[0077] [Note] Up to this point, it has been described that the multiple linear transmission members 22 connected to the connector 40 include multiple thinnest linear transmission members 22A, but this is not a required configuration. The multiple linear transmission members 22 connected to the connector may include only one thinnest linear transmission member 22A. In this case, the two or more linear transmission members fixed to the second sheet may be a pair consisting of the thinnest linear transmission member 22A and a linear transmission member thicker than it. When multiple types of linear transmission members with different thicknesses are provided as linear transmission members thicker than the thinnest linear transmission member 22A, any thickness of the linear transmission member may be fixed to the second sheet. For example, the thinnest linear transmission member 22A and the second thinnest linear transmission member may be fixed to the second sheet.

[0078] Although the multiple linear transmission members 22 have been described above as including the wire 22A with a conductor cross-sectional area equal to or smaller than 0.35 square millimeters as the thinnest linear transmission member 22A, this is not a required configuration. For example, the multiple linear transmission members 22 may include the wire 22A with a conductor cross-sectional area larger than 0.35 square millimeters as the thinnest linear transmission member.

[0079] Although the wiring member 10 has been described above as including linear transmission members 22A and 22B with different thicknesses, this is not a required configuration. The multiple linear transmission members in the wiring member 10 may all be linear transmission members with the same thickness.

[0080] Furthermore, although it has been described above that the second sheet 30 is provided for all connectors 40 to which the thinnest linear transmission member 22 is connected, this is not a required configuration. The second sheet 30 may not be provided for some of the connectors among the multiple connectors to which the thinnest linear transmission member 22 is connected. For example, when the end of the first sheet is rolled up like the above-mentioned second sheet 30A, the end of the first sheet may be extended to the position of the second sheet 30A.

[0081] Furthermore, although it has been described above that some or all of the linear transmission members 22B thicker than the thinnest linear transmission member 22A are not fixed to the second sheet 30B, this is not a required configuration. Some or all of the linear transmission members 22B thicker than the thinnest linear transmission member 22A may be fixed to the second sheet 30B. In this case, the linear transmission members 22B can withstand a larger tensile load than when only the thinnest linear transmission member 22A is fixed to the second sheet 30B.

[0082] 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]

[0083] 10 Wiring materials 20 Wiring body 22 Electric wire (linear transmission component) 22A Electric wire (first linear transmission member) 22B Electric wire (second linear transmission member) 23 Transmission line body 24 Covering layer 28 Sheet 1 30, 30A, 30B 2nd sheet 40, 40A, 40B, 50 Connectors 42 Connector housing 44 terminals

Claims

1. a wiring body including a plurality of linear transmission members, a first sheet to which the plurality of linear transmission members are fixed, and a second sheet to which at least some of the plurality of linear transmission members are fixed; connectors provided at the ends of the plurality of linear transmission members; Equipped with the second sheet is provided between the first sheet and the connector, two or more linear transmission members including all of the thinnest linear transmission members among the plurality of linear transmission members are fixed to the second sheet, a width dimension of the wiring body at the position of the second seat is smaller than a width dimension of the wiring body at the position of the first seat; All of the plurality of linear transmission members are fixed to the second sheet, A wiring member in which the plurality of linear transmission members are arranged in a line at the position of the first sheet and are stacked in multiple layers at the position of the second sheet.

2. The wiring member according to claim 1, The plurality of linear transmission members include, as the thinnest linear transmission member, an electric wire having a conductor cross-sectional area equal to or smaller than 0.35 square millimeters.

3. The wiring member according to claim 1 or 2, A wiring member, wherein the distance between the connector and the second sheet is 120 mm or more and 260 mm or less.

4. The wiring member according to any one of claims 1 to 3, A wiring member, wherein the distance between the first sheet and the second sheet is at least two-thirds of the width of the first sheet at the end of the first sheet.

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