Wiring member and manufacturing method for wiring member

Abstract

The purpose of this disclosure is to make it easier to cope with wiring member design change or repair. This wiring member includes a plurality of linear transmission members, and a base member to which the plurality of linear transmission members are fixed via a fusion part. The plurality of linear transmission members include a plurality of first linear transmission members and a plurality of second linear transmission members grouped according to the destination of connection. The fusion part includes a first fusion part and a second fusion part different from the first fusion part. The first fusion part is where the plurality of first linear transmission members lined up together are fused and fixed to the base member. The second fusion part is where the plurality of second linear transmission members lined up together are fused and fixed to the base member.

Description

Wiring member and method for manufacturing the same

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

[0002] Patent Document 1 discloses a wiring member including a plurality of linear transmission members. The plurality of linear transmission members are grouped into a plurality of first linear transmission members and a plurality of second linear transmission members according to predetermined conditions related to the plurality of linear transmission members. The wiring member includes a first flat wiring member including a plurality of first linear transmission members and a second flat wiring member including a plurality of second linear transmission members. At least a portion of the first flat wiring member and at least a portion of the second flat wiring member are stacked.

[0003] Japanese Patent Application Laid-Open No. 2020-198287

[0004] It is conceivable that the grouped plurality of first linear transmission members and the grouped plurality of second linear transmission members are fixed to a common base member.

[0005] In this case, it is desirable to be able to easily accommodate design changes or adjustments to the wiring members.

[0006] Therefore, an object of the present disclosure is to easily accommodate design changes or adjustments to wiring members.

[0007] The wiring member of the present disclosure comprises a plurality of linear transmission members and a base member to which the plurality of linear transmission members are fixed via fusion portions, wherein the plurality of linear transmission members include a plurality of first linear transmission members and a plurality of second linear transmission members that are grouped according to their connection destinations, the fusion portions include a first fusion portion and a second fusion portion separate from the first fusion portion, the first fusion portion being a portion that fusion-fixes the plurality of first linear transmission members to the base member in a parallel state, and the second fusion portion being a portion that fusion-fixes the plurality of second linear transmission members to the base member in a parallel state.

[0008] In addition, the manufacturing method for a wiring member disclosed herein is a manufacturing method for a wiring member in which a plurality of first linear transmission members are fused together in a parallel state to a base member, a plurality of second linear transmission members are fused together in a parallel state to the base member, and the operation of fusing the plurality of first linear transmission members and the operation of fusing the plurality of second linear transmission members are performed as separate operations with different fusing timings or fusing tools.

[0009] According to the present disclosure, it is possible to easily accommodate design changes or adjustments to the wiring member.

[0010] FIG. 1 is a plan view showing a wiring member according to an embodiment. FIG. 2 is a bottom view showing the wiring member. FIG. 3 is an explanatory diagram showing an example of a manufacturing method for the wiring member. FIG. 4 is a cross-sectional view showing an example of a fusion operation along line IV-IV in FIG. 1. FIG. 5 is a cross-sectional view showing an example of a fusion operation along line IV-IV in FIG. 1. FIG. 6 is a cross-sectional view showing an example of a fusion operation along line VI-VI in FIG. 1. FIG. 7 is a cross-sectional view showing another example of a fusion operation along line IV-IV in FIG. 1. FIG. 8 is a bottom view showing a modified example of the position of the fusion portion. FIG. 9 is an explanatory diagram showing a wiring member with a modified design. FIG. 10 is an explanatory diagram for explaining an example of a reworking operation for a wiring member.

[0011] [Description of Embodiments of the Present Disclosure] First, embodiments of the present disclosure will be listed and described.

[0012] The wiring member of the present disclosure is as follows.

[0013] (1) A wiring member comprising a plurality of linear transmission members and a base member to which the plurality of linear transmission members are fixed via fusion portions, wherein the plurality of linear transmission members include a plurality of first linear transmission members and a plurality of second linear transmission members grouped according to their connection destinations, the fusion portions include a first fusion portion and a second fusion portion separate from the first fusion portion, the first fusion portion being a portion that fusion-fixes the plurality of first linear transmission members to the base member in a parallel state, and the second fusion portion being a portion that fusion-fixes the plurality of second linear transmission members to the base member in a parallel state.

[0014] According to this wiring member, a plurality of first linear transmission members and a plurality of second linear transmission members, grouped according to their connection destinations, are fused to a base member via separate first fusion sections or second fusion sections. Therefore, if the plurality of first linear transmission members or the plurality of second linear transmission members are reduced, added, or their wire types are changed, this can be accommodated by simply changing the process related to the first fusion sections or the second fusion sections. Furthermore, even if modifications are required for the plurality of first linear transmission members or the plurality of second linear transmission members, this can be accommodated by simply modifying the plurality of first linear transmission members or the plurality of second linear transmission members. Therefore, design changes or modifications of the wiring member can be easily accommodated.

[0015] (2) In the wiring member of (1), the first fused portion and the second fused portion may be spaced apart from each other.

[0016] This makes it easy to fuse the plurality of first linear transmission members and the plurality of second linear transmission members without affecting each other.

[0017] (3) In the wiring member of (1), a boundary may exist between the first fused portion and the second fused portion.

[0018] This makes it easy to fuse the plurality of first linear transmission members and the plurality of second linear transmission members under different conditions.

[0019] (4) In any one of the wiring members (1) to (3), the gap between the plurality of first linear transmission members and the plurality of second linear transmission members may be larger than the gap between the plurality of first linear transmission members and the gap between the plurality of second linear transmission members.

[0020] This makes it easy to separately weld the plurality of first linear transmission members and the plurality of second linear transmission members.

[0021] (5) In the wiring member of (4), in the terminal regions of the plurality of first linear transmission members and the plurality of second linear transmission members, the gap between the plurality of first linear transmission members and the plurality of second linear transmission members may be larger than the gap between the plurality of first linear transmission members and the gap between the plurality of second linear transmission members.

[0022] This makes it easy to set the positions of the plurality of first linear transmission members and the plurality of second linear transmission members according to the destination of the terminal.

[0023] (6) In any one of the wiring members (1) to (5), the plurality of first linear transmission members and the plurality of second linear transmission members may be arranged on the base member to avoid crossing each other.

[0024] This makes it possible to easily accommodate design changes or adjustments to the wiring members without being affected by the order of fusion due to crossover.

[0025] (7) In a wiring member according to any one of (1) to (6), each of one ends of the plurality of first linear transmission members may be connected to a common one-end first connector, and each of the other ends of the plurality of first linear transmission members may be connected to a common other-end first connector, thereby configuring the plurality of first linear transmission members as a first wiring module component, and each of one ends of the plurality of second linear transmission members may be connected to a common one-end second connector, and each of the other ends of the plurality of second linear transmission members may be connected to a common other-end second connector, thereby configuring the plurality of second linear transmission members as a second wiring module component that is a separate component from the first wiring module component.

[0026] In this case, the plurality of first linear transmission members are configured as first wiring module components, and the plurality of second linear transmission members are configured as second wiring module components that are separate components from the first wiring module components, making it easy to change and modify the designs of the plurality of first linear transmission members and the plurality of second linear transmission members separately.

[0027] The method for manufacturing the wiring member of the present disclosure is as follows.

[0028] (8) A method for manufacturing a wiring member, in which a plurality of first linear transmission members are fused together in a parallel state to a base member, and a plurality of second linear transmission members are fused together in a parallel state to the base member, and the operation of fusing the plurality of first linear transmission members and the operation of fusing the plurality of second linear transmission members are performed as separate operations with different fusing timing or fusing tools.

[0029] This makes it easy to change or modify the design of the plurality of first linear transmission members and the plurality of second linear transmission members separately.

[0030] [Details of the embodiments of the present disclosure] Specific examples of the wiring member and the manufacturing method 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 of the claims.

[0031] [Embodiment] A wiring member and a method for manufacturing the wiring member according to an embodiment will be described below. Fig. 1 is a plan view showing a wiring member 10, and Fig. 2 is a bottom view showing the wiring member 10.

[0032] <Regarding the Wiring Member> The following describes the wiring member 10. The wiring member 10 includes a plurality of linear transmission members 20, 30 and a base member 40.

[0033] The plurality of linear transmission members 20 , 30 includes a plurality of first linear transmission members 20 and a plurality of second linear transmission members 30 .

[0034] The first linear transmission member 20 and the second linear transmission member 30 are assumed to be linear transmission members that connect components in a vehicle, and extend along wiring paths that correspond to the positions of the components to which they are connected.

[0035] More specifically, the linear transmission members 20, 30 may be any linear members that transmit electricity, light, etc. For example, the linear transmission members 20, 30 may be general electric wires having core wires 20 a, 30 a and coatings 20 b, 30 b surrounding the core wires (see FIGS. 4 to 6 ), or may be bare wires, shielded wires, twisted wires, enameled wires, nichrome wires, optical fibers, etc.

[0036] The linear transmission members 20 and 30 that transmit electricity may be various signal lines or various power lines. A part of the linear transmission member 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.

[0037] Furthermore, each of the linear transmission members 20, 30 may be a single linear object, or a composite of multiple linear objects (such as a twisted wire or a cable made up of multiple linear objects covered with a sheath).

[0038] Here, the description will be made assuming that the first linear transmission member 20 is an electric wire and the second linear transmission member is an electric wire.

[0039] The plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 are grouped according to their connection destinations. For example, the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 are grouped so that if they have the same connection destination, they belong to the same group, and if they have different connection destinations, they belong to different groups.

[0040] In this embodiment, one end of each of the plurality of first linear transmission members 20 is connected to a common one-end first connector 28, and the other end of each of the plurality of first linear transmission members 20 is connected to a common other-end first connector 29. This allows the plurality of first linear transmission members 20 to be configured as a first wiring module component 20M, in which the first one-end first connector 28 and the other-end first connector 29 are grouped together.

[0041] The first linear transmission member 20 is connected to the connectors 28, 29, for example, by fitting terminals attached to the ends of the first linear transmission member 20 into cavities formed in the housings of the connectors 28, 29. The connection of the first linear transmission member 20 to the connectors 28, 29 may be performed before, simultaneously with, or after the operation of fixing the first linear transmission member 20 to the base member 40.

[0042] Similarly, one ends of the plurality of second linear transmission members 30 are connected to a common one-end second connector 38, and the other ends of the plurality of second linear transmission members 30 are connected to a common other-end second connector 39. In this way, the plurality of second linear transmission members 30 can be configured as a second wiring module component 30M, in which the second linear transmission members 30 are grouped together by the one-end second connector 38 and the other-end second connector 39.

[0043] Ends of the plurality of first linear transmission members 20 and ends of the plurality of second linear transmission members 30 are not connected to a common connector. Therefore, the first wiring module component 20M and the second wiring module component 30M can be handled as physically separate components before being fixed to the base member 40 or after being removed.

[0044] The number of the plurality of first linear transmission members 20 is arbitrary, and the number of the plurality of second linear transmission members 30 is also arbitrary. In this embodiment, the number of the plurality of first linear transmission members 20 is four, and the number of the plurality of second linear transmission members 30 is three.

[0045] The connectors 28, 29, 38, and 39 are connectors that are connected to different destination connectors. The different destination connectors may be connectors that are provided on different devices, or may be different connectors that are provided on the same device.

[0046] The base member 40 is a member having a main surface to which the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 are fixed. The base member 40 may be formed in a sheet shape, or may be formed in a three-dimensional shape. The main surface may be a flat surface, a curved surface, an uneven surface, or a surface that combines a flat surface with another curved surface. For example, the base member 40 may be a member having a flat portion, more specifically, a bendable sheet member. The base member 40 preferably has flexibility that allows it to bend easily in the thickness direction.

[0047] The material constituting the base member 40 is not particularly limited, but the base member 40 is preferably formed from a material containing a resin such as PVC, PE, PET (polyethylene terephthalate), or PP (polypropylene). The base member 40 may be a solid sheet material with a uniformly filled interior, or a nonwoven fabric sheet in which multiple fibers are intertwined without being woven. The base member 40 may also contain a material such as metal. The sheet member may be a single layer or may be a multi-layer laminate. In the case of a multi-layer laminate, for example, the sheet member may be a laminate of resin layers and resin layers. More specifically, for example, the sheet member may be a laminate of a resin sheet material with a uniformly filled interior and a nonwoven fabric sheet. Alternatively, for example, the sheet member may be a laminate of a resin layer and a metal layer.

[0048] A plurality of first linear transmission members 20 and a plurality of second linear transmission members 30 are fixed to the main surface of a base member 40 via fused portions 26, 36. The fused portions 26, 36 include a first fused portion 26 that fixes the plurality of first linear transmission members 20 to the base member 40, and a second fused portion 36 that fixes the plurality of second linear transmission members 30 to the base member 40. The second fused portion 36 is a fused portion separate from the first fused portion 26.

[0049] The first fusion portions 26 fusion-bond the plurality of first linear transmission members 20 to the base member 40 in a parallel state. The second fusion portions 36 fusion-bond the plurality of second linear transmission members 30 to the base member 40 in a parallel state.

[0050] More specifically, the base member 40 is formed in a shape that is long in one direction.

[0051] The plurality of first linear transmission members 20 extend from one longitudinal end to the other longitudinal end of the base member 40. The ends of the plurality of first linear transmission members 20 may extend toward either side of the base member 40 in the longitudinal direction, or may extend toward an edge facing outward in the longitudinal direction, at each longitudinal end of the base member 40.

[0052] In this embodiment, each of the multiple first linear transmission members 20 includes, in this order, a one-end straight portion 21La, a one-end bent portion 21Ca, an intermediate straight portion 21M, an other-end bent portion 21Cb, and an other-end straight portion 21Lb. The one-end straight portion 21La, the intermediate straight portion 21M, and the other-end straight portion 21Lb are portions that extend linearly on the base member 40, while the one-end bent portion 21Ca and the other-end bent portion 21Cb are portions that extend curved, in this case, arc-shaped, on the base member 40.

[0053] The one-end bent portion 21Ca is connected to one end of the intermediate straight portion 21M, and the one-end straight portion 21La is connected to the one-end bent portion 21Ca on the opposite side of the intermediate straight portion 21M. The rotation angle of the one-end bent portion 21Ca is set depending on the angle at which the one-end straight portion 21La extends relative to the intermediate straight portion 21M. In this embodiment, the intermediate straight portion 21M is aligned along the longitudinal direction of the base member 40, and the one-end straight portion 21La is perpendicular to the longitudinal direction of the base member 40. Therefore, the rotation angle of the one-end bent portion 21Ca is set to 90 degrees, or more specifically, to form a quarter arc.

[0054] Similarly to the above, the other-end bent portion 21Cb is connected to the other end side of the intermediate straight portion 21M, and the other-end straight portion 21Lb is connected to the other end side of the other-end bent portion 21Cb on the opposite side of the intermediate straight portion 21M. The other-end bent portion 21Cb bends in the same direction as the one-end bent portion 21Ca, and the other-end straight portion 21Lb extends to the same side as the one-end bent portion 21Ca.

[0055] Adjacent ones of the plurality of first linear transmission members 20 may or may not be in contact with each other. In this embodiment, adjacent ones of the plurality of first linear transmission members 20 are in contact with each other.

[0056] Also, similar to the first linear transmission member 20, each of the multiple second linear transmission members 30 includes, similar to the first linear transmission member 20, a one-end straight portion 31La, a one-end bent portion 31Ca, an intermediate straight portion 31M, an other-end bent portion 31Cb, and an other-end straight portion 31Lb, in this order.

[0057] The intermediate straight portion 31M extends along the longitudinal direction of the base member 40, the one-end bent portion 31Ca and the other-end bent portion 31Cb bend to the same side as the one-end bent portion 21Ca and the other-end bent portion 21Cb, and the one-end straight portion 31La and the other-end straight portion 31Lb extend out to the same side as the one-end straight portion 21La and the other-end straight portion 21Lb.

[0058] Adjacent ones of the plurality of second linear transmission members 30 may or may not be in contact with each other. In the present embodiment, adjacent ones of the plurality of second linear transmission members 30 are in contact with each other.

[0059] Preferably, the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 are arranged on the base member 40 so as to avoid crossing each other.

[0060] For example, a plurality of intermediate linear portions 21M and a plurality of intermediate linear portions 31M are arranged in parallel on the base member 40. The plurality of intermediate linear portions 21M and the plurality of intermediate linear portions 31M may or may not be in contact with each other. In this embodiment, the intermediate linear portions 21M on the intermediate linear portion 31M side are in contact with the intermediate linear portions 21M on the intermediate linear portion 31M side.

[0061] The one-end bent portion 31Ca is located on the outer periphery of the one-end bent portion 21Ca. In this embodiment, one end of the intermediate straight portion 31M extends outward beyond one end of the intermediate straight portion 21M, and the one-end bent portion 31Ca is located at a position further outward from the intermediate straight portion 21M than the one-end bent portion 21Ca. At this position, the one-end bent portion 31Ca bends in the same direction as the one-end bent portion 21Ca, and as a result, the one-end bent portion 31Ca is located on the outer periphery of the one-end bent portion 21Ca.

[0062] A gap is formed between the one-end bent portions 31Ca and the one-end bent portions 21Ca. That is, a gap larger than the gaps between the one-end bent portions 31Ca and the gaps between the one-end bent portions 21Ca is formed between the group of the one-end bent portions 31Ca and the group of the one-end bent portions 21Ca.

[0063] One-end-side straight portions 21La, 31La extend from each end of the one-end-side bent portions 21Ca, 31Ca. The multiple one-end-side straight portions 21La and the multiple one-end-side straight portions 31La are parallel to one another. A gap S is formed between the multiple one-end-side straight portions 21La and the multiple one-end-side straight portions 31La. In other words, a gap larger than the gap between the multiple one-end-side straight portions 21La and the gap between the multiple one-end-side straight portions 31La is formed between the group of multiple one-end-side straight portions 21La and the group of multiple one-end-side straight portions 31La.

[0064] Therefore, in the terminal regions of the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30, the gap S between the group of the plurality of one-end side straight portions 21La and the group of the plurality of one-end side straight portions 31La is set to be larger than the gap between the plurality of one-end side straight portions 21La and the gap between the plurality of one-end side straight portions 31La.

[0065] Similarly, the other end bent portion 31Cb is located on the outer circumferential side of the other end bent portion 21Cb, and other end straight portions 21Lb, 31Lb extend from each end thereof.

[0066] The above-described exemplary routes of the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 are merely examples. For example, at least one end of the plurality of first linear transmission members 20 or the plurality of second linear transmission members 30 may extend in the same direction as the intermediate straight portion. Furthermore, one end of the plurality of second linear transmission members 30 may extend in the opposite direction from one end of the plurality of first linear transmission members 20. Furthermore, the plurality of first linear transmission members 20 or the plurality of second linear transmission members 30 may be arranged along a more complex route, with a greater number of straight portions and a greater number of curved portions continuing in succession.

[0067] The plurality of first linear transmission members 20 are fixed to the base member 40 via first fusion portions 26, and the plurality of second linear transmission members 30 are fixed to the base member 40 by second fusion portions 36 that are different from the first fusion portions 26.

[0068] Note that fusion refers to, for example, bonding and fixing by melting a resin contained in at least one of the first linear transmission member 20 or the second linear transmission member 30 and the base member 40 due to an increase in temperature. In other words, the fusion portions 26, 36 are portions that are fused and fixed by heat.

[0069] At this time, various fusing means can be used to form the fused portions 26, 36 by fusing through a temperature rise, such as ultrasonic fusing, heat and pressure fusing, hot air fusing, or high-frequency fusing. Furthermore, when the fused portions 26, 36 are formed by these means, the first linear transmission member 20 or the second linear transmission member 30 and the base member 40 are fused and fixed by that means. Specifically, for example, when the fused portions 26, 36 are formed by ultrasonic fusing, the first linear transmission member 20 or the second linear transmission member 30 and the base member 40 are in the state of the fused portions 26, 36 by ultrasonic fusing.

[0070] In this embodiment, the fused portion 26 is a partial fused portion in which the resin constituting the base member 40 and the resin constituting the coating of the first linear transmission member 20 are fixed by ultrasonic welding. The fused portion 36 is a partial fused portion in which the resin constituting the base member 40 and the resin constituting the coating of the second linear transmission member 30 are fixed by ultrasonic welding.

[0071] Furthermore, the phrase "the second fused portion 36 is separate from the first fused portion 26" refers to a configuration in which the first fused portion 26 and the second fused portion 36 can be fused separately, and it is not necessary to fused one of the first fused portion 26 and the second fused portion 36 to fused the other. "Separately fused" includes cases in which the first fused portion 26 and the second fused portion 36 can be fused at different times and cases in which the first fused portion 26 and the second fused portion 36 can be fused using different fusion tools. For example, the first fused portion 26 and the second fused portion 36 are formed by sandwiching the first linear transmission member 20 or the second linear transmission member 30 and the base member between a horn and anvil for ultrasonic fusion and applying ultrasonic vibration energy. In this case, the first fused portion 26 and the second fused portion 36 may be formed using different combinations of horns and anvils, or may be formed using the same combination of horn and anvil at different times.

[0072] It is assumed that the first fused portion 26 and the second fused portion 36 are formed by sandwiching the first linear transmission member 20 or the second linear transmission member 30 and the base member 40 between two fusion tools to apply energy for fusing under pressure. The two fusion parts are, for example, a horn and anvil for ultrasonic fusion. For this reason, it is conceivable that traces of the fusion tools remain on the first linear transmission member 20 or the second linear transmission member 30 and the base member 40. In other words, at the location where the first linear transmission member 20 or the second linear transmission member 30 is fixed to the base member 40, the portion that includes the fusion tool marks 26a, 36a (see Figure 1) that are recessed on the side of the first linear transmission member 20 or the second linear transmission member 30 opposite the base member 40, and the fusion tool marks (26b, 36b) that are recessed on the side of the base member 40 opposite the linear transmission members 20, 30 is the first fusion portion 26 or the second fusion portion 36.

[0073] Since the first fused portion 26 and the second fused portion 36 are configured as separate fused portions, traces of the separate formation of the first fused portion 26 and the second fused portion 36 remain.

[0074] For example, in FIG. 2 , as shown in the first fusion portion 26 (and its fusion tool mark 26b) fusing the one-end side straight portion 21La to the base member 40, and the second fusion portion 36 (and its fusion tool mark 36b) fusing the one-end side straight portion 31La to the base member 40, it is assumed that the first fusion portion 26 and the second fusion portion 36 are separated from each other.

[0075] For example, if the first fused portion 26 and the second fused portion 36 are formed in different regions at different times, the first fused portion 26 and the second fused portion 36 will be formed in separate positions. Also, if the first fused portion 26 and the second fused portion 36 are formed in separate regions at the same time using different fusers, the first fused portion 26 and the second fused portion 36 will be formed in separate positions.

[0076] In particular, since the gap S between the one-end straight portion 21La of the first linear transmission member 20 and the one-end straight portion 31La of the second linear transmission member 30 is larger than the gaps between the plurality of first linear transmission members 20 and the gaps between the plurality of second linear transmission members 30, it is easy to form the first fused portion 26 and the second fused portion 36 apart. In this embodiment, the gaps between the plurality of first linear transmission members 20 are zero, and the gaps between the plurality of second linear transmission members 30 are also zero. Note that there is a possibility that the gaps between the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 will inevitably include gaps due to bending tendencies of the linear transmission members 20, 30 and limitations in the alignment process.

[0077] For example, in Figure 2, it is assumed that a boundary B exists between the first fused portion 26 (and its fusion tool mark 26b) that fuses the intermediate straight portion 21M and the base member 40, and the second fused portion 36 (and its fusion tool mark 36b) that fuses the intermediate straight portion 31M and the base member 40.

[0078] Boundary B may be a mark of the outer edge of the portion of the fusion tool that contacts the base member 40, for example, a mark of the edge of the contact surface of a horn or anvil for ultrasonic fusion. Even when fusion tool mark 26b of first fusion portion 26 and fusion tool mark 36b of second fusion portion 36 are adjacent to each other, it is conceivable that boundary B therebetween will remain as an edge mark of the fusion tool. For example, even when a group of multiple intermediate straight portions 21M and a group of multiple intermediate straight portions 31M are adjacent to each other and fusion tools for fusing the two groups are pressed against the base member 40 in the adjacent region, it is conceivable that a mark of the fusion tool will remain at boundary B therebetween.

[0079] <Example of Method for Manufacturing Wiring Member> An example of a method for manufacturing the wiring member 10 will be described.

[0080] 3, a plurality of first linear transmission members 20 are arranged on a base member 40. The plurality of first linear transmission members 20 may be arranged on the base member 40 all at once, or the plurality of first linear transmission members 20 may be arranged on the base member 40 by sequentially fusing them from one end along the longitudinal direction.

[0081] A plurality of first linear transmission members 20 are aligned in a parallel state, and the plurality of first linear transmission members 20 are fused together to the base member 40. Fusion is performed, for example, as shown in FIG. 4 by sandwiching the plurality of first linear transmission members 20 arranged in a parallel state on the base member 40 collectively between a pair of fusion tools 50, 52 and applying energy for fusion. As a result, the plurality of first linear transmission members 20 are fused and fixed to the base member 40 simultaneously in a parallel state, and first fusion portions 26 are formed. The plurality of first fusion portions 26 are formed at intervals in the longitudinal direction of the plurality of first linear transmission members 20. The plurality of first fusion portions 26 may be formed sequentially in the longitudinal direction of the plurality of first linear transmission members 20, or may be formed simultaneously.

[0082] Next, a plurality of second linear transmission members 30 are placed on the base member 40. The plurality of second linear transmission members 30 may be placed on the base member 40 all at once, or the plurality of second linear transmission members 30 may be placed on the base member 40 by sequentially fusing them from one end along the longitudinal direction.

[0083] A plurality of second linear transmission members 30 are aligned in a parallel state, and the plurality of second linear transmission members 30 are fused together to the base member 40. Fusion is performed, for example, as shown in FIG. 5 , by sandwiching the plurality of second linear transmission members 30 arranged in a parallel state on the base member 40 collectively between a pair of fusion tools 54, 56 and applying energy for fusion. As a result, the plurality of second linear transmission members 30 are fused and fixed to the base member 40 simultaneously in a parallel state, and second fusion portions 36 are formed. The plurality of second fusion portions 36 are formed at intervals in the longitudinal direction of the plurality of second linear transmission members 30. The plurality of second fusion portions 36 may be formed sequentially in the longitudinal direction of the plurality of second linear transmission members 30, or may be formed simultaneously.

[0084] If the number, material, or thickness of the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 differ, the width or shape of the contact surface may differ between the fusion tools 50, 52 and the fusion tools 54, 56. In addition, the fusion conditions for forming the first fusion portion 26 and the second fusion portion 36, such as the fusion time, target temperature, or pressure conditions, may differ.

[0085] By separating the first fusion portion 26 and the second fusion portion 36, the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 can be fused under conditions suitable for each. Furthermore, by dividing the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 into smaller groups, it becomes easier to arrange them in parallel.

[0086] In the above example, an example has been described in which the operation of fusing a plurality of first linear transmission members 20 and the operation of fusing a plurality of second linear transmission members 30 are performed as separate operations using different fusing tools 50, 52 and different fusing tools 54, 56 at different fusing timings. However, both operations may be performed using the same fusing tool.

[0087] Also, as shown in Figure 6, the operation of fusing a plurality of first linear transmission members 20 and the operation of fusing a plurality of second linear transmission members 30 may be performed at the same time using different fusing tools 50, 52 and fusing tools 54, 56.

[0088] In this case, the fusion tools 50, 52 and the fusion tools 54, 56 may be arranged adjacent to each other. Even in this case, it is expected that a gap will be formed between the first fusion portion 26 and the second fusion portion 36 due to a minute gap or step between the fusion tools 50, 52 and the fusion tools 54, 56.

[0089] Furthermore, as shown in FIG. 7, when one-end straight portion 21La and one-end straight portion 31La are fused together, whether the two operations are performed at the same time or at different times, fusion tools 50, 52 and fusion tools 54, 56 will be positioned apart, and therefore, first fusion portion 26 and second fusion portion 36 may be separated.

[0090] In the above embodiment, an example has been described in which the first fusion portion 26 that fuses the plurality of second linear transmission members 30 and the second fusion portion 36 that fuses the plurality of second linear transmission members 30 are at the same position in the extending direction of those linear transmission members 20, 30. However, as in the wiring member 110 shown in Figure 8, the first fusion portion 126 corresponding to the first fusion portion 26 and the second fusion portion 136 corresponding to the second fusion portion 136 may be positioned offset in the extending direction of the linear transmission members 20, 30.

[0091] <Effects, etc.> According to the wiring member 10 configured as described above and its manufacturing method, a plurality of first linear transmission members 20 and a plurality of second linear transmission members 30, which are grouped according to their connection destinations, are fused and fixed to the base member 40 via separate first fusion portions 26 or second fusion portions 36.

[0092] Therefore, if there is a reduction, addition, or change in wire type of multiple first linear transmission members 20 or multiple second linear transmission members 30, this can be addressed by changing the process related to the first fusion portion 26 or the second fusion portion 36.

[0093] 9, suppose a linear transmission member 20x is to be added to the plurality of first linear transmission members 20 originally planned. In this case, the fusion tool or fusion conditions for forming the first fusion portion 26 can be changed without changing the fusion tool or fusion conditions for forming the second fusion portion 36. This allows for partial changes to the manufacturing equipment, conditions, etc., making it easy to accommodate design changes.

[0094] Furthermore, even if adjustments are required for the multiple first linear transmission members 20 or the multiple second linear transmission members 30, this can be addressed by simply adjusting the multiple first linear transmission members 20 or the multiple second linear transmission members 30.

[0095] For example, as shown in Figure 10, suppose that a trace of a portion of the multiple first fused portions 26 used to fuse the multiple first linear transmission members 20 to the base member 40 is formed at a position 26F that is offset from the first linear transmission members 20. In this case, the work of fusing the multiple first linear transmission members 20 can be redone without affecting the multiple second linear transmission members 30. In this way, by fusing the multiple first linear transmission members 20 and the multiple second linear transmission members 30 separately, a defect in one of the members can be repaired separately, making the repair work easier than if the entire member had to be repaired. This makes it easy to accommodate design changes or repairs to the wiring member 10.

[0096] Furthermore, since the first fused portion 26 and the second fused portion 36 are spaced apart, it is easy to fused the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 together without affecting each other.

[0097] Furthermore, since a boundary B exists between the first fusion portion 26 and the second fusion portion 36, it is easy to change the conditions by separately fusing the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 using the fusing devices 50, 52 or the fusing devices 54, 56, or by changing the timing.

[0098] Furthermore, since the gap S between the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 is larger than the gap between the plurality of linear transmission members and the gap between the plurality of linear transmission members, it is easy to fuse the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 separately.

[0099] Furthermore, in the terminal regions of the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30, the gap S between the one-end straight portions 21La (or the other-end straight portions 21Lb) of the plurality of first linear transmission members 20 and the one-end straight portions 31La (or the other-end straight portions 31Lb) of the plurality of second linear transmission members 30 is larger than the gaps between the one-end straight portions 21La (or the other-end straight portions 21Lb) of the plurality of linear transmission members 20 and the one-end straight portions 31La (or the other-end straight portions 31Lb) of the plurality of linear transmission members 30. Therefore, it is easy to set the positions of the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 on the base member 40 according to the destinations of the terminals of the linear transmission members 20, 30.

[0100] Furthermore, the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30 are arranged on the base member 40 to avoid intersections. Therefore, the design can be changed or adjusted independently, and design changes or adjustments to the wiring member 10 can be easily accommodated.

[0101] Furthermore, one end of each of the plurality of first linear transmission members 20 is connected to a common one-end first connector 28, and the other end of each of the plurality of first linear transmission members 20 is connected to a common other-end first connector 29, thereby configuring the plurality of first linear transmission members 20 as a first wiring module component 20M. Furthermore, one end of each of the plurality of second linear transmission members 30 is connected to a common one-end second connector 38, and the other end of each of the plurality of second linear transmission members 30 is connected to a common other-end second connector 39, thereby configuring the plurality of second linear transmission members 30 as a second wiring module component 30M that is a separate component from the first wiring module component 20M. This makes it easy to separately change and modify the design of the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30.

[0102] Furthermore, the plurality of first linear transmission members 20 are fused together in a parallel state to the base member 40, and the plurality of second linear transmission members 30 are fused together in a parallel state to the base member 40. In this case, the two fusion operations are performed as separate operations with different fusion timings or different fusion tools 50, 52 and 54, 56. This makes it easy to separately change or modify the design of the plurality of first linear transmission members 20 and the plurality of second linear transmission members 30.

[0103] The configurations described in the above embodiment and modifications can be combined as appropriate as long as they are not mutually contradictory.

[0104] 10; 110 Wiring member 20 First linear transmission member 20M First wiring module component 20a, 30a Core wire 20b, 30b Coating 20x Linear transmission member 21Ca, 31Ca One end bent portion 21Cb, 31Cb Other end bent portion 21La, 31La One end straight portion 21Lb, 31Lb Other end straight portion 21M, 31M Intermediate straight portion 26; 126 First fusion portion 26F Displaced position 26a, 26b, 36a, 36b Fusion tool mark 28 One end first connector 29 Other end first connector 30 Second linear transmission member 30M Second wiring module component 36; 136 Second fusion portion 38 One end second connector 39 Other end second connector 40 Base member 50, 52, 54, 56 Fusion tool B Boundary S Gap

Claims

1. A wiring member comprising: a plurality of linear transmission members; and a base member to which the plurality of linear transmission members are fixed via a fusion part, wherein the plurality of linear transmission members include a plurality of first linear transmission members and a plurality of second linear transmission members grouped according to connection destinations, the fusion part includes a first fusion part and a second fusion part different from the first fusion part, the first fusion part is a part for fusion-fixing the plurality of first linear transmission members to the base member in a parallel state, and the second fusion part is a part for fusion-fixing the plurality of second linear transmission members to the base member in a parallel state.

2. The wiring member according to claim 1, wherein the first fusion part and the second fusion part are separated from each other.

3. The wiring member according to claim 1, wherein there is a boundary between the first fusion part and the second fusion part.

4. The wiring member according to any one of claims 1 to 3, wherein a gap between the plurality of first linear transmission members and the plurality of second linear transmission members is larger than a gap between the plurality of first linear transmission members and a gap between the plurality of second linear transmission members.

5. The wiring member according to claim 4, wherein in a terminal region of the plurality of first linear transmission members and the plurality of second linear transmission members, a gap between the plurality of first linear transmission members and the plurality of second linear transmission members is larger than a gap between the plurality of first linear transmission members and a gap between the plurality of second linear transmission members.

6. The wiring member according to any one of claims 1 to 3, wherein the plurality of first linear transmission members and the plurality of second linear transmission members are arranged on the base member so as to avoid intersection.

7. The wiring member according to any one of claims 1 to 3, wherein each of one ends of the plurality of first linear transmission members is connected to a common one-end-side first connector, and each of the other ends of the plurality of first linear transmission members is connected to a common other-end-side first connector, whereby the plurality of first linear transmission members are configured as a first wiring module component; and each of one ends of the plurality of second linear transmission members is connected to a common one-end-side second connector, and each of the other ends of the plurality of second linear transmission members is connected to a common other-end-side second connector, whereby the plurality of second linear transmission members are configured as a second wiring module component that is a separate component from the first wiring module component.

8. A method for manufacturing a wiring member, comprising: collectively fusing a plurality of first linear transmission members in a parallel state to a base member; collectively fusing a plurality of second linear transmission members in a parallel state to the base member; and performing the operation of fusing the plurality of first linear transmission members and the operation of fusing the plurality of second linear transmission members as separate operations with different fusing timings or fusing tools.

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