Wiring member
The wiring member design addresses overlap issues by fixing parallel straight and bent transmission members with increased distance between bent portions, ensuring efficient path alignment and reduced area occupation.
Patent Information
- Application Number
- PCT/JP2024/043787
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-12-27
- Filing Date
- 2024-12-11
- Publication Date
- 2025-07-03
AI Technical Summary
Existing wiring members face challenges in suppressing overlap between multiple linear transmission members fixed on a sheet, particularly due to difficulties in arranging bent portions along a predetermined path, leading to increased area occupation.
The wiring member design includes first and second linear transmission members with specific bent and straight portions fixed in parallel, where the distance between bent portions is greater than that between straight portions, allowing for reduced overlap and area occupation by ensuring the bent portions do not intersect.
This design effectively suppresses overlap between linear transmission members, minimizes the occupied area, and facilitates easy fixation along predetermined paths, even when bent portions deviate, thereby enhancing the compactness and organization of the wiring member.
Smart Images

Figure JP2024043787_03072025_PF_FP_ABST
Abstract
Description
Wiring materials
[0001] The present disclosure relates to a wiring member.
[0002] Patent Document 1 discloses a wiring member including a sheet and first and second linear transmission members fixed to the sheet. Patent Document 1 discloses that the plurality of linear transmission members are maintained along wiring paths that correspond to the positions of the components to which they are connected, and that the paths of the plurality of linear transmission members are configured by a combination of straight paths and curved paths.
[0003] Japanese Patent Application Laid-Open No. 2021-151083
[0004] It is desirable to prevent a plurality of linear transmission members from overlapping each other on the sheet.
[0005] Therefore, an object of the present disclosure is to prevent linear transmission members fixed on a sheet from overlapping with each other.
[0006] The wiring member of the present disclosure comprises a first linear transmission member, a second linear transmission member, and a base member to which the first linear transmission member and the second linear transmission member are fixed, wherein the first linear transmission member includes a first straight portion and a first bent portion that bends and extends next to the first straight portion, and the second linear transmission member includes a second straight portion and a second bent portion that bends and extends next to the second straight portion, the first straight portion and the second straight portion are fixed to the base member in a parallel state, the first bent portion and the second bent portion are bent to the same side on the base member, and the distance between the first bent portion and the second bent portion is larger than the distance between the first straight portion and the second straight portion.
[0007] According to the present disclosure, overlapping of linear transmission members fixed on a sheet can be suppressed.
[0008] 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 a partially enlarged view of Fig. 1. Fig. 4 is an explanatory diagram showing an example of a manufacturing method for the wiring member. Fig. 5 is a cross-sectional view showing an example of a fusion operation at line VV in Fig. 1.
[0009] [Description of Embodiments of the Present Disclosure] First, embodiments of the present disclosure will be listed and described.
[0010] The wiring member of the present disclosure is as follows.
[0011] (1) A wiring member comprising: a first linear transmission member; a second linear transmission member; and a base member to which the first linear transmission member and the second linear transmission member are fixed; the first linear transmission member includes a first straight portion and a first bent portion that bends and extends next to the first straight portion; the second linear transmission member includes a second straight portion and a second bent portion that bends and extends next to the second straight portion; the first straight portion and the second straight portion are fixed to the base member in a parallel state; the first bent portion and the second bent portion are bent to the same side on the base member; and the distance between the first bent portion and the second bent portion is greater than the distance between the first straight portion and the second straight portion.
[0012] Because the first straight portion and the second straight portion extend linearly, they can be easily arranged in parallel. However, it may be difficult to arrange the first bent portion and the second bent portion along a predetermined path on the base member. Therefore, by making the distance between the first bent portion and the second bent portion larger than the distance between the first straight portion and the second straight portion, overlapping of linear transmission members fixed to the base member can be suppressed even if the first bent portion or the second bent portion deviates from the predetermined path. Because the distance between the first straight portion and the second straight portion is relatively small, the area over which each linear transmission member extends can be reduced.
[0013] (2) The wiring member of (1) may include a plurality of the first linear transmission members and a plurality of the second linear transmission members, and the spacing between the first bent portions of the plurality of first linear transmission members and the spacing between the second bent portions of the plurality of second linear transmission members may be smaller than the spacing between the first bent portions and the second bent portions.
[0014] It is conceivable to fix a plurality of first linear transmission members to a base member and then fix a plurality of second linear transmission members to the base member separately from this fixing process. In this case, there is a possibility that the first bent portions and the second bent portions, which are fixed separately, tend to overlap. Therefore, by increasing the spacing between the first bent portions and the second bent portions, it is possible to effectively prevent overlapping between the first linear transmission members and the second linear transmission members. By reducing the spacing between the plurality of first bent portions and the spacing between the plurality of second bent portions, it is possible to reduce the area over which the plurality of linear transmission members extend.
[0015] (3) In the wiring member of (2), the plurality of first linear transmission members may be connected to a common first connector, and the plurality of second linear transmission members may be connected to a common second connector.
[0016] By connecting the plurality of first linear transmission members to a common first connector, it is easy to fix them all together to the base member. By connecting the plurality of second linear transmission members to a common first connector, it is easy to fix them all together to the base member.
[0017] (4) In any one of the wiring members (1) to (3), the first linear transmission member may include a first spaced-apart straight portion located adjacent to the first bent portion on the opposite side of the first straight portion, and the second linear transmission member may include a second spaced-apart straight portion located adjacent to the second bent portion on the opposite side of the second straight portion, and the first spaced-apart straight portion and the second spaced-apart straight portion may be fixed to the base member in a parallel state.
[0018] Since the first spaced apart straight portion and the second spaced apart straight portion are fixed to the base member in a parallel state, the first bent portion and the second bent portion can be bent so as to rotate at approximately the same angle. In this case, too, by increasing the distance between the first bent portion and the second bent portion, overlapping between the first linear transmission member and the second linear transmission member can be effectively suppressed.
[0019] (5) In the wiring member of (4), the distance between the first spaced apart linear portion and the second spaced apart linear portion may be larger than the distance between the first linear portion and the second linear portion.
[0020] The destination paths of the first separated straight section and the second separated straight section can be easily set freely by the paths that bend from the first straight section and the second straight section via the first bending section and the second bending section, respectively.
[0021] (6) In any one of the wiring members (1) to (5), the first bent portion may be located on the inner side of the second bent portion, and the bending radius of the innermost edge of the second bent portion may be smaller than the bending radius of the outermost edge of the first bent portion.
[0022] This allows the length of the second bent portion located on the outer periphery to be shortened, thereby increasing the length of the second straight portion and making it easier to fix the second linear transmission member to the base member along a more constant path.
[0023] (7) In the wiring member of any one of (1) to (6), the first linear transmission member and the second linear transmission member may be fixed to the base member by fusion bonding.
[0024] When the first linear transmission member and the second linear transmission member are fixed to the base member by fusion bonding, the first bent portion and the second bent portion are unlikely to overlap.
[0025] [Details of the embodiment of the present disclosure] Specific examples of the wiring member of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.
[0026] [Embodiment] A 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.
[0027] <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.
[0028] The plurality of linear transmission members 20 , 30 include a first linear transmission member 20 and a second linear transmission member 30 .
[0029] 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.
[0030] 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 FIG. 5 ), or may be bare wires, shielded wires, twisted wires, enameled wires, nichrome wires, optical fibers, etc.
[0031] 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.
[0032] 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).
[0033] 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.
[0034] In this embodiment, the wiring member 10 includes a plurality of first linear transmission members 20 and a plurality of second linear transmission members 30. 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.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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.
[0039] The number of first linear transmission members 20 is arbitrary, and the number of second linear transmission members 30 is also arbitrary. Therefore, there may be one first linear transmission member 20 and one second linear transmission member 30. In this embodiment, there are four first linear transmission members 20 and three second linear transmission members 30.
[0040] 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.
[0041] 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.
[0042] 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.
[0043] A plurality of first linear transmission members 20 and a plurality of second linear transmission members 30 are fixed to a main surface of a base member 40 via fixing portions 26, 36. The fixing portions 26, 36 include first fixing portions 26 that fix the plurality of first linear transmission members 20 to the base member 40, and second fixing portions 36 that fix the plurality of second linear transmission members 30 to the base member 40. The second fixing portions 36 may be separate from the first fixing portions 26, or may be integrated with the first fixing portions 26.
[0044] The first fixing portions 26 fusion-fix the plurality of first linear transmission members 20 in a parallel state to the base member 40. The second fixing portions 36 fusion-fix the plurality of second linear transmission members 30 in a parallel state to the base member 40.
[0045] More specifically, the base member 40 is formed in a shape that is long in one direction.
[0046] 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.
[0047] 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.
[0048] 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.
[0049] 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 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 on the same side as the one-end straight portion 21La.
[0050] 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. However, even if the plurality of first linear transmission members 20 are arranged in parallel so as to be in contact with each other, partial gaps that are difficult to avoid may exist due to the bending tendency of the first linear transmission members 20 and limitations in the positioning process. Similarly, partial gaps may occur when multiple straight portions described below are arranged so as to be in contact with each other.
[0051] The intermediate straight portion 21M is an example of a first straight portion, and the one-end bent portion 21Ca and the other-end bent portion 21Cb are each an example of a first bent portion that extends and bends next to the intermediate straight portion 21M as the first straight portion. Furthermore, the one-end straight portion 21La and the other-end straight portion 21Lb are each an example of a first separated straight portion that is located next to the one-end bent portion 21Ca or the other-end bent portion 21Cb as the first bent portion on the opposite side of the intermediate straight portion 21M as the first straight portion. The first separated straight portion is a portion that is located away from the first straight portion via a first bent portion.
[0052] 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.
[0053] Similar to the first linear transmission member 20, 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 are bent on 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 on the same side as the one-end straight portion 21La and the other-end straight portion 21Lb.
[0054] 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.
[0055] The intermediate straight portion 31M is an example of a second straight portion, and the one-end bent portion 31Ca and the other-end bent portion 31Cb are each an example of a second bent portion that extends and bends next to the intermediate straight portion 31M as the second straight portion. The one-end straight portion 31La and the other-end straight portion 31Lb are each an example of a second separated straight portion that is located next to the one-end bent portion 31Ca or the other-end bent portion 31Cb as the second bent portion on the opposite side of the intermediate straight portion 31M as the second straight portion. The second separated straight portion is a portion that is located away from the second straight portion via a second bent portion.
[0056] The plurality of intermediate linear portions 21M and the plurality of intermediate linear portions 31M are fixed in a parallel state 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.
[0057] On the base member 40, at one end side of the plurality of intermediate straight portions 21M, the one-end bent portion 21Ca is bent to one side of the plurality of intermediate straight portions 21M. On the base member 40, at one end side of the plurality of intermediate straight portions 31M, the one-end bent portion 31Ca is bent to the same side as the one-end bent portion 21Ca.
[0058] 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.
[0059] The one-end bent portions 21Ca and 31Ca are spaced apart on the base member 40, with a gap S1 formed between them. In other words, between the group of the multiple one-end bent portions 31Ca and the group of the multiple one-end bent portions 21Ca, a gap S1 larger than the gaps between the multiple one-end bent portions 31Ca and the gaps between the multiple one-end bent portions 21Ca is formed.
[0060] The one-end bent portion 21Ca and the one-end bent portion 31Ca do not have to be fixed to the base member 40. In this case, it is preferable that the one-end bent portion 21Ca and the one-end bent portion 31Ca therebetween are maintained in a bent state on the base member 40 according to the fixed positions and postures of the intermediate straight portions 21M, 31M and the one-end bent portions 21Ca, 31Ca relative to the base member 40. Note that the one-end bent portion 21Ca or the one-end bent portion 31Ca may be fixed to the base member by fusion or the like.
[0061] 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 fixed to the base member 40 in a parallel state. A gap S2 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 S2 larger than the gaps between the multiple one-end-side straight portions 21La and the gaps 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.
[0062] 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.
[0063] 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, 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 on the opposite side 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.
[0064] Preferably, the first linear transmission member 20 and the second linear transmission member 30 are arranged on the base member 40 so as to avoid crossing each other.
[0065] The plurality of first linear transmission members 20 are fixed to the base member 40 via first fixing portions 26, and the plurality of second linear transmission members 30 are fixed to the base member 40 by second fixing portions 36. In this embodiment, the intermediate straight portion 21M, the one-end straight portion 21La, and the other-end straight portion 21Lb are fixed to the base member 40 by the first fixing portions 26. The intermediate straight portion 31M, the one-end straight portion 31La, and the other-end straight portion 31Lb are fixed to the base member 40 by the second fixing portions 36.
[0066] Each of the first fixing portion 26 and the second fixing portion 36 is a partial fixing location in the extension direction of the first linear transmission member 20 or the second linear transmission member 30. Therefore, the multiple first fixing portions 26 in the first linear transmission member 20 are formed at intervals in the extension direction of the first linear transmission member 20. Furthermore, the multiple second fixing portions 36 in the second linear transmission member 30 are formed at intervals in the extension direction of the second linear transmission member 30.
[0067] The first fixing portion 26 and the second fixing portion 36 of the first linear transmission member 20 and the second linear transmission member 30 relative to the base member 40 can be considered to be fixation at the contact points where the first linear transmission member 20 or the second linear transmission member 30 is attached to and fixed to the base member 40.
[0068] The manner of fixation of the contact portions may be indirect fixation of the contact portions, direct fixation of the contact portions, or a combination of both in different regions. Here, indirect fixation of the contact portions refers to the first linear transmission member 20 or the second linear transmission member 30 and the base member 40 being indirectly attached and fixed via an indirect fixing portion such as an adhesive, pressure-sensitive adhesive, or double-sided adhesive tape provided therebetween. Direct fixation of the contact portions refers to the first linear transmission member 20 or the second linear transmission member 30 being directly attached and fixed without a separate adhesive or the like. In direct fixation of the contact portions, for example, the first linear transmission member 20 or the second linear transmission member 30 and the base member 40 may be attached and fixed 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.
[0069] When the 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 by heat is used.
[0070] The means for achieving the direct contact fixation at the contact sites is not particularly limited, and known means such as welding, fusion, and welding can be used. For example, when the direct contact 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 contact fixation at the contact sites is achieved by these means, the first linear transmission member 20 or the second linear transmission member 30 and the base member 40 are directly fixed at the contact sites by that means. Specifically, for example, when the direct contact fixation at the contact sites is achieved by ultrasonic fusion, the first linear transmission member 20 or the second linear transmission member 30 and the base member 40 are directly fixed at the contact sites by ultrasonic fusion. Here, the description will be given assuming that the first fixing portion 26 is a portion that fusion-fixes the first linear transmission member 20 to the base member 40, and the second fixing portion 36 is a portion that fusion-fixes the second linear transmission member 30 to the base member 40. In particular, these fused and fixed portions will be described assuming that they are fixed by ultrasonic fusion. For example, the first fixed portion 26 is a spot fused portion where the resin constituting the base member 40 and the resin constituting the coating of the first linear transmission member 20 are fixed by ultrasonic fusion. Also, the second fixed portion 36 is a spot fused portion where the resin constituting the base member 40 and the resin constituting the coating of the second linear transmission member 30 are fixed by ultrasonic fusion.
[0071] The one-end bent portions 21Ca, 31Ca will be described in more detail. Fig. 3 is a partially enlarged view of Fig. 1. Fig. 3 mainly shows a portion including the one-end bent portions 21Ca, 31Ca. Fig. 3 also shows a boundary line B between the intermediate straight portions 21M, 31M, the one-end bent portions 21Ca, 31Ca, and the one-end straight portions 21La, 31La.
[0072] As shown in the same figure, the distance between the one-end bending portion 21Ca, which is an example of a first bending portion, and the one-end bending portion 31Ca, which is an example of a second bending portion, is larger than the distance between the intermediate straight portion 21M, which is an example of a first straight portion, and the intermediate straight portion 31M, which is an example of a second straight portion.
[0073] More specifically, the distance between the one of the multiple one-end side bending portions 21Ca that is closest to the one-end side bending portion 31Ca and the one of the multiple one-end side bending portions 31Ca that is closest to the one-end side bending portion 21Ca is larger than the distance between the one of the multiple intermediate straight portions 21M that is closest to the intermediate straight portion 31M and the one of the multiple intermediate straight portions 31M that is closest to the intermediate straight portion 21M.
[0074] The distance between the one-end bent portion 21Ca and the one-end bent portion 31Ca may be, for example, a distance L1 connecting the center position of the one-end bent portion 21Ca in the extension direction to the center position of the one-end bent portion 31Ca. The distance between the one-end bent portion 21Ca and the one-end bent portion 31Ca may be, for example, a minimum distance L2 between the one-end bent portion 21Ca and the one-end bent portion 31Ca.
[0075] The distance between the intermediate straight portion 21M and the intermediate straight portion 31M may be the minimum distance, the maximum distance, or the average distance in the overlapping portion of the intermediate straight portion 21M and the intermediate straight portion 31M.
[0076] As described above, 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 away from the one-end bent portion 21Ca toward the outer periphery along the extension direction of the intermediate straight portion 21M. Therefore, a gap S1 corresponding to the length by which one end of the intermediate straight portion 31M extends outward beyond one end of the intermediate straight portion 21M is formed between the outer periphery of the one-end bent portion 21Ca and the inner periphery of the one-end bent portion 31Ca. The distance L1 or L2 of the gap S1 is clearly larger than the distance between the intermediate straight portions 21M and 31M, which are arranged in contact with each other.
[0077] In this embodiment, it is assumed that the distance between the intermediate straight portion 21M and the intermediate straight portion 31M is zero. However, a small gap may be formed between the intermediate straight portion 21M and the intermediate straight portion 31M. Even in this case, the distance L1 or L2 between the one-end bent portion 21Ca and the one-end bent portion 31Ca is clearly larger than the distance between the intermediate straight portion 21M and the intermediate straight portion 31M.
[0078] The one-end bent portions 21Ca of the multiple first linear transmission members 20 are bent in parallel so as to be in contact with each other and arranged on the base member 40. For this reason, it is assumed that the spacing between the multiple one-end bent portions 21Ca is zero. Similarly, it is assumed that the spacing between the multiple one-end bent portions 31Ca is also zero.
[0079] The spacing between the multiple one-end bent portions 21Ca and the multiple one-end bent portions 31Ca is smaller than the spacing L1 or L2 of the gap S1. As described above, minute gaps may be formed between the multiple one-end bent portions 21Ca or the multiple one-end bent portions 31Ca, but even in this case, the spacing between the multiple one-end bent portions 21Ca and the multiple one-end bent portions 31Ca is clearly smaller than the spacing L1 or L2 of the gap S1.
[0080] Even if the one-end bending portions 21Ca, 31Ca themselves are not fixed to the base member 40, as described above, the spacing between the one-end bending portions 21Ca, 31Ca can be adjusted by adjusting the position and posture of the intermediate straight portions 21M, 31M before and after them and the one-end straight portions 21La, 31La.
[0081] The bent shapes of the one-end bent portions 21Ca, 31Ca are arbitrary, but the bend radius r2 of the innermost periphery of the one-end bent portion 31Ca may be smaller than the bend radius r1 of the outermost periphery of the one-end bent portion 21Ca.
[0082] When there are multiple one-end bent portions 31Ca, the bending radius r2 of the innermost peripheral edge of the one-end bent portion 31Ca is the bending radius of the inner peripheral portion of the one-end bent portion 31Ca located on the innermost peripheral side.When there are multiple one-end bent portions 21Ca, the bending radius r1 of the outermost peripheral edge of the one-end bent portion 21Ca is the bending radius of the outer peripheral portion of the one-end bent portion 21Ca located on the outermost peripheral side.
[0083] If the outer bent end portion is arranged along the outer periphery of the inner bent end portion, the bending radius of the inner peripheral portion of the outer bent end portion is expected to be equal to or greater than the bending radius of the outer peripheral portion of the inner bent end portion, which may result in the outer bent end portion becoming longer.
[0084] In this embodiment, one end of the intermediate straight portion 31M is disposed outward from one end of the intermediate straight portion 21M, so that the one-end bent portion 31Ca is disposed on the outer circumferential side of the one-end bent portion 21Ca. The bending radius r2 of the innermost periphery of the one-end bent portion 31Ca is smaller than the bending radius r1 of the outermost periphery of the one-end bent portion 21Ca.
[0085] By reducing the bending radius r2 of the innermost peripheral edge of the one-end bent portion 31Ca, the lengths of the intermediate straight portion 31M and the one-end straight portion 31La can be shortened. The intermediate straight portion 31M and the one-end straight portion 31La are easier to fix in a fixed position relative to the base member 40 than the one-end bent portion 31Ca. Therefore, it is easier to fix the second linear transmission member 30 more reliably along a predetermined path on the base member 40.
[0086] The one-end straight portion 21La extends from the one-end bent portion 21Ca, and the one-end straight portion 31La extends from the one-end bent portion 31Ca. The one-end straight portion 21La and the one-end straight portion 31La are parallel to each other. The distance W between the one-end straight portion 21La and the one-end straight portion 31La is greater than the distance between the intermediate straight portion 21M and the intermediate straight portion 31M. This allows the one-end straight portion 21La and the one-end straight portion 31La to be positioned on the base member 40 according to the position of the connection destination. In addition, the one-end first connector 28 at the tip of the one-end straight portion 21La and the one-end second connector 38 at the tip of the one-end straight portion 31La are less likely to interfere with each other.
[0087] In this embodiment, the other end bent portions 21Cb, 31Cb and the other end straight portions 21Lb, 31Lb are also arranged on the base member 40 along paths symmetrical to the paths of the one end bent portions 21Ca, 31Ca and the one end straight portions 21La, 31La.
[0088] When manufacturing the wiring member 10, for example, as shown in FIG. 4, the intermediate straight portion 21M, the one end straight portion 21La, and the other end straight portion 21Lb of the first wiring module component 20M are fixed to the base member 40 by the first fixing portions 26.
[0089] Next, the second wiring module component 30M is placed on the base member 40, and the second linear transmission member 30 is fixed to the base member 40 by the second fixing portions 36.
[0090] In this case, for example, first, the intermediate straight portion 31M is fixed to the base member 40 by the second fixing portion 36. Thereafter, the portion of the second linear transmission member 30 corresponding to the one-end bent portion 31Ca is bent laterally and placed on the base member 40, and as shown in Fig. 5, the portion corresponding to the one-end straight portion 31La extending beyond the one-end bent portion 31Ca is sandwiched between a pair of fusion tools 60 and fixed to the base member 40 by fusion or the like.
[0091] By pulling the second linear transmission member 30 linearly, the second linear transmission member 30 can be placed on the base member 40 while being straightened. Therefore, the intermediate linear portion 31M can be easily fixed to the base member 40 along a predetermined linear path.
[0092] In contrast, for the one-end bent portion 31Ca, it is expected that a bent shape corresponding to the one-end bent portion 31Ca will be formed by restricting the position and posture of a part of the portion corresponding to the one-end bent portion 31Ca or parts before and after the one-end bent portion 31Ca. For this reason, restricting the curved path of the one-end bent portion 31Ca may be more difficult than restricting the straight path of the intermediate straight portion 31M.
[0093] Therefore, the distance S1 between the one-end bent portion 21Ca and the one-end bent portion 31Ca is set to be larger than the distance between the intermediate straight portion 21M and the intermediate straight portion 31M. This makes it difficult for the one-end bent portion 21Ca and the one-end bent portion 31Ca to overlap even if the path of the one-end bent portion 21Ca or the one-end bent portion 31Ca on the base member 40 is disturbed.
[0094] The gaps between the multiple one-end bent portions 21Ca may be larger than the gaps between the multiple intermediate straight portions 21M. Similarly, the gaps between the multiple one-end bent portions 31Ca may be larger than the gaps between the multiple intermediate straight portions 31M.
[0095] <Effects, etc.> With the wiring member 10 configured as described above, the intermediate straight portions 21M, 31M extend linearly, making it easy to arrange them side by side on the base member 40. In contrast, it may be difficult to arrange the one-end bent portions 21Ca, 31Ca along a predetermined curved path on the base member 40. Therefore, the distance between the one-end bent portion 21Ca and the one-end bent portion 31Ca is made larger than the distance between the intermediate straight portion 21M and the intermediate straight portion 31M. This prevents the linear transmission members 20, 30 fixed on the base member 40 from overlapping with each other even if the one-end bent portion 21Ca or the one-end bent portion 31Ca deviates from the predetermined path. Furthermore, by making the distance between the intermediate straight portion 21M and the intermediate straight portion 31M relatively small, the area over which the linear transmission members 20, 30 extend can be reduced, enabling the wiring member 10 to be made more compact.
[0096] It is also conceivable to fix a plurality of first linear transmission members 20 to the base member 40, and then fix a plurality of second linear transmission members 30 to the base member 40 separately from this fixing operation. In this case, there is a possibility that the one-end bent portions 21Ca and the one-end bent portions 31Ca, which are fixed separately, are likely to overlap. Therefore, by increasing the spacing between the one-end bent portions 21Ca and the one-end bent portions 31Ca, it is possible to effectively prevent overlapping between the first linear transmission members 20 and the second linear transmission members 30. By reducing the spacing between the plurality of one-end bent portions 21Ca and the spacing between the plurality of one-end bent portions 31Ca, it is possible to reduce the area over which the plurality of linear transmission members 20, 30 extend.
[0097] Furthermore, by connecting the plurality of first linear transmission members 20 to the common first connectors 28, 29, they can be easily fixed collectively to the base member 40. Furthermore, by connecting the plurality of second linear transmission members 30 to the common second connectors 38, 39, they can be easily fixed collectively to the base member 40.
[0098] Furthermore, because the one-end straight portion 21La and the one-end straight portion 31La are fixed in parallel to the base member 40, the one-end bent portion 21Ca and the one-end bent portion 31Ca can be formed to bend so as to turn at approximately the same angle. In this case, too, by increasing the distance between the one-end bent portion 21Ca and the one-end bent portion 31Ca, overlap between the first linear transmission member 20 and the second linear transmission member 30 can be effectively suppressed.
[0099] Furthermore, by making the distance between the one-end straight portion 21La and the one-end straight portion 31La larger than the distance between the intermediate straight portion 21M and the intermediate straight portion 31M, it is easy to freely set the destination path of the one-end straight portion 21La and the one-end straight portion 31La at the path that turns from the intermediate straight portion 21M and the intermediate straight portion 31M via the one-end bent portion 21Ca or the one-end bent portion 31Ca, respectively. This makes it easy to position the connectors 28, 38 in positions according to their connection destinations and to avoid interference between the connectors 28, 38.
[0100] Furthermore, because the bending radius r2 of the innermost peripheral edge of the one-end bent portion 31Ca is smaller than the bending radius r2 of the outermost peripheral edge of the one-end bent portion 21Ca, the length of the one-end bent portion 31Ca located on the outer periphery can be shortened. Therefore, the lengths of the intermediate straight portion 31M and the one-end straight portion 21La can be increased, making it easier to fix the second linear transmission member 30 to the base member 40 along a more constant path.
[0101] Furthermore, the first linear transmission member 20 and the second linear transmission member 30 are fixed to the base member 40 by fusion bonding. At this time, the one-end bent portion 21Ca and the one-end bent portion 31Ca are unlikely to overlap each other.
[0102] The configurations described in the above embodiment and modifications can be combined as appropriate as long as they are not mutually contradictory.
[0103] REFERENCE SIGNS LIST 10 Wiring member 20 First linear transmission member 20M First wiring module component 20a, 30a Core wire 20b, 30b Coating 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 First fixing portion 28 One end first connector 29 Other end first connector 30 Second linear transmission member 30M Second wiring module component 36 Second fixing portion 38 One end second connector 39 Other end second connector 40 Base member 60 Fusion splicer B Boundary line L1 Distance L2 Minimum distance S1 Gap S2 Gap r1 Bending radius r2 Bending radius
Claims
1. A wiring member comprising a first linear transmission member, a second linear transmission member, and a base member to which the first linear transmission member and the second linear transmission member are fixed, wherein the first linear transmission member includes a first straight portion and a first bent portion that bends and extends adjacent to the first straight portion, the second linear transmission member includes a second straight portion and a second bent portion that bends and extends adjacent to the second straight portion, the first straight portion and the second straight portion are fixed to the base member in a parallel state, the first bent portion and the second bent portion bend on the same side on the base member, and the distance between the first bent portion and the second bent portion is greater than the distance between the first straight portion and the second straight portion.
2. The wiring member according to claim 1, further comprising a plurality of the first linear transmission members and a plurality of the second linear transmission members, wherein the distance between the first bent portions of the plurality of first linear transmission members and the distance between the second bent portions of the plurality of second linear transmission members are smaller than the distance between the first bent portion and the second bent portion.
3. The wiring member according to claim 2, wherein the plurality of first linear transmission members are connected to a common first connector, and the plurality of second linear transmission members are connected to a common second connector.
4. The wiring member according to any one of claims 1 to 3, wherein the first linear transmission member includes a first spaced straight portion located adjacent to the first bent portion on the opposite side of the first straight portion, the second linear transmission member includes a second spaced straight portion located adjacent to the second bent portion on the opposite side of the second straight portion, and the first spaced straight portion and the second spaced straight portion are fixed to the base member in a parallel state.
5. The wiring member according to claim 4, wherein the distance between the first spaced straight portion and the second spaced straight portion is greater than the distance between the first straight portion and the second straight portion.
6. The wiring member according to any one of claims 1 to 3, wherein the first bent portion is located on the inner circumferential side of the second bent portion, and the bending radius of the innermost circumferential edge of the second bent portion is smaller than the bending radius of the outermost circumferential edge of the first bent portion.
7. The wiring member according to any one of claims 1 to 3, wherein the first linear transmission member and the second linear transmission member are fixed to the base member by fusion bonding.
Citation Information
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