Wiring member
The wiring member addresses the challenge of positioning linear transmission members by arranging the first linear transmission member to bend along the bending path of the base member, extending through specific side portions, which enhances bending efficiency and stability while preventing path cramping.
Patent Information
- Application Number
- JP2022004356
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-01-14
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2042-01-14
AI Technical Summary
Existing wiring members struggle to appropriately position linear transmission members relative to the bending path portion of the base member, leading to inefficient bending and potential path cramping.
The wiring member comprises a first linear transmission member, a second linear transmission member that is more easily bent, and a base member with a bending path portion. The first linear transmission member is arranged to bend along the bending path portion, extending through specific side portions of the base member at the entrance and exit of the bending path, allowing for appropriate positioning and reduced crossing points.
This configuration enables more appropriate positioning of the linear transmission member relative to the bending path, facilitating easier bending at appropriate angles and stabilizing the crossing state, while preventing path cramping and ensuring efficient handling during assembly.
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Abstract
Description
[Technical field]
[0001] The present disclosure relates to a wiring member. [Background technology]
[0002] Patent Document 1 discloses a wiring member in which a first linear transmission member and a second linear transmission member that is more easily bent than the first linear transmission member are fixed to a base member. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent Publication No. 2021-082510 Summary of the Invention [Problem to be solved by the invention]
[0004] It is desirable to more appropriately position the linear transmission member relative to the bending path portion of the base member.
[0005] Therefore, an object of the present invention is to provide a technique for more appropriately positioning a linear transmission member relative to a curved path portion of a base member. [Means for solving the problem]
[0006] The wiring member disclosed herein comprises a first linear transmission member, a second linear transmission member that is more easily bent than the first linear transmission member, and a base member to which the first linear transmission member and the second linear transmission member are fixed, wherein the base member includes a bending path portion, the first linear transmission member is arranged bent along the bending path portion, and at an entrance side along the extension direction of the bending path portion, the first linear transmission member extends so as to pass through a first side portion along the width direction of the base member, and at an exit side along the extension direction of the bending path portion, the first linear transmission member extends so as to pass through a second side portion along the width direction of the base member. Effect of the Invention
[0007] According to the present disclosure, the linear transmission member can be more appropriately positioned relative to the bending path portion of the base member. [Brief description of the drawings]
[0008] [Figure 1] FIG. 1 is a plan view showing the wiring member according to the first embodiment. [Diagram 2] FIG. 2 is a plan view showing the wiring member according to the second embodiment. [Diagram 3] FIG. 3 is a plan view showing a modified example of the wiring member according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0009] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described.
[0010] The wiring member of the present disclosure is as follows.
[0011] (1) A wiring member comprising a first linear transmission member, a second linear transmission member that is more easily bent than the first linear transmission member, and a base member to which the first linear transmission member and the second linear transmission member are fixed, the base member including a bending path portion, the first linear transmission member being arranged to bend along the bending path portion, the first linear transmission member extending to pass through a first side portion along the width direction of the base member at an entrance side along the extending direction of the bending path portion, and the first linear transmission member extending to pass through a second side portion along the width direction of the base member at an exit side along the extending direction of the bending path portion. When passing through the bending path portion, the first linear transmission member moves from the first side portion along the width direction of the base member to the second side portion. This makes it easier for the first linear transmission member to bend at an appropriate angle. This makes it possible to more appropriately arrange the linear transmission member with respect to the bending path portion of the base member.
[0012] (2) In the wiring member of (1), the first linear transmission member and the second linear transmission member may cross each other at the bent path portion. Even in this case, when the first linear transmission member passes through the bent path portion, the second linear transmission member crosses the first linear transmission member by moving from a first side portion to a second side portion along the width direction of the base member, so that the number of crossing points is reduced to one, and the crossing state is stabilized.
[0013] (3) In the wiring member of (2), the second linear transmission member may be arranged so as to be bent along the bent path portion, and at the entrance side along the extending direction of the bent path portion, the second linear transmission member may extend so as to pass through the second side portion of the base member further than the first linear transmission member, and at the exit side along the extending direction of the bent path portion, the second linear transmission member may extend so as to pass through the first side portion of the base member further than the first linear transmission member. This prevents the path of the second linear transmission member from becoming cramped even when the second linear transmission member and the first linear transmission member are arranged so as to be bent along the bent path portion.
[0014] (4) In the wiring member of (3), the second linear transmission members may be arranged so as to be bent along the curved path portion, and the radius of curvature of the second linear transmission member arranged on the outermost side among the second linear transmission members may be larger than the radius of curvature of the first linear transmission member, thereby making it easier for the second linear transmission members to be arranged so as to be bent along the curved path portion.
[0015] (5) In the wiring member of any one of (2) to (4), the second linear transmission member may be located closer to the base member than the first linear transmission member at an intersection between the first linear transmission member and the second linear transmission member, whereby the first linear transmission member prevents the second linear transmission member from separating from the base member.
[0016] (6) In the wiring member according to any one of (1) to (5), at the entrance side along the extending direction of the bent path portion, the first linear transmission member is fixed to the base member via an entrance-side first fixing portion, and the second linear transmission member is fixed to the base member via an entrance-side second fixing portion, at the exit side along the extending direction of the bent path portion, the first linear transmission member is fixed to the base member via an exit-side first fixing portion, and the second linear transmission member is fixed to the base member via an exit-side second fixing portion, and at least one of the entrance-side first fixing portion and the exit-side first fixing portion may be a long fixing portion whose length dimension of fixing the first linear transmission member to the base member is longer than both of the length dimension of fixing the second linear transmission member to the base member by the entrance-side second fixing portion and the length dimension of fixing the second linear transmission member to the base member by the exit-side second fixing portion. The first linear transmission member is less likely to be kept in a bent state than the second linear transmission member. Even in this case, since at least one of the inlet-side first fixed portion and the outlet-side first fixed portion is a long fixed portion, the first linear transmission member is easily maintained in a bent state.
[0017] (7) In any one of the wiring members of (1) to (6), the bending path portion may be a first bending path portion, the base member may include a second bending path portion located on the exit side along the extension direction of the first bending path portion, the first linear transmission member may be bent and arranged along the second bending path portion, the entrance side along the extension direction of the second bending path portion is a portion that connects to the exit side along the extension direction of the first bending path portion, and at the entrance side along the extension direction of the second bending path portion, the first linear transmission member may extend so as to pass through the second side portion along the width direction of the base member, similar to the exit side along the extension direction of the first bending path portion, and at the exit side along the extension direction of the second bending path portion, the first linear transmission member may extend so as to pass through the first side portion along the width direction of the base member. The first linear transmission member moves from a first side portion along the width direction of the base member to a second side portion when passing through the first bending path portion, and moves from the second side portion along the width direction of the base member to the first side portion when passing through the second bending path portion, which makes it easier for the first linear transmission member to bend at an appropriate angle in each of the first bending path portion and the second bending path portion.
[0018] [Details of the embodiment of the present disclosure] Specific examples of the wiring member of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.
[0019] [Embodiment 1] The following describes the wiring member according to embodiment 1. Fig. 1 is a plan view showing a wiring member 10 according to embodiment 1.
[0020] The wiring member 10 includes a first linear transmission member 20, a second linear transmission member 30, and a base member .
[0021] 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. The first linear transmission member 20 and the second linear transmission member 30 extend along wiring paths that correspond to the positions of the components to which they are connected.
[0022] More specifically, the linear transmission member may be any linear member that transmits electricity or light, etc. For example, the linear transmission member may be a general electric wire having a core wire and a coating around the core wire, or may be a bare conductor wire, a shielded wire, a twisted wire, an enamel wire, a nichrome wire, an optical fiber, etc.
[0023] The linear transmission member for transmitting electricity may be any of various signal lines and various power lines. A part of the linear transmission member for transmitting electricity may be used as an antenna, a coil, or the like for sending a signal or power to or receiving it from space.
[0024] Furthermore, the linear transmission member 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 assembled together and covered with a sheath).
[0025] Here, the description is given mainly on the assumption that the first linear transmission member 20 is the first electric wire 20, and the second linear transmission member 30 is the second electric wire 30. In the present embodiment, the wiring member 10 includes one first electric wire 20 and four second electric wires 30. The number of the first electric wires 20 may be more than one. The number of the second electric wires 30 may be one, two or three, or five or more. The number of the first electric wires 20 is less than the number of the second electric wires 30. The number of the first electric wires 20 may be the same as or more than the number of the second electric wires 30.
[0026] The second linear transmission member 30 is easier to bend than the first linear transmission member 20. For example, whether or not bending deformation is easy depends on the bending rigidity. For example, the bending rigidity of the second linear transmission member 30 is lower than the bending rigidity of the first linear transmission member 20. Whether the first linear transmission member 20 or the second linear transmission member 30 is easier to bend may be determined by, for example, measuring the force required to reach a predetermined deformation state from a predetermined initial state (e.g., a straight state) in a bending test such as a three-point bending test or a four-point bending test under a room temperature environment.
[0027] Generally, a thin linear body is more easily bent than a thick linear body, and therefore the second linear transmission member 30 may be understood to be thinner than the first linear transmission member 20. In the present embodiment, an example in which the second electric wire 30 is thinner than the first electric wire 20 will be described.
[0028] In addition, when the physical properties of the material constituting the first linear transmission member 20 and the material constituting the second linear transmission member 30 are significantly different, a thick linear body may be more easily bent than a thin linear body. For example, assume that the first linear transmission member 20 and the second linear transmission member 30 are electric wires. PVC (polyvinyl chloride), PE (polyethylene), etc. may be used as the coating of the electric wire. In general, PVC is more flexible than PE. Therefore, a PVC-coated electric wire tends to be easily bent, and a PE-coated electric wire tends not to be easily bent. In such a case, even if the first linear transmission member 20 is thinner than the second linear transmission member 30, the second linear transmission member 30 may be more easily bent than the first linear transmission member 20.
[0029] Furthermore, since the first linear transmission member 20 is a shielded wire having a conductor layer, a first covering layer, a shielding layer and a second covering layer, and the second linear transmission member 30 is a general electric wire having only a conductor layer and one covering layer, the second linear transmission member 30 may be more susceptible to bending deformation than the first linear transmission member 20.
[0030] The base member 40 is a member to which the first electric wire 20 and the second electric wire 30 are fixed. The base member 40 has a main surface. The first electric wire 20 and the second electric wire 30 are fixed onto the main surface, whereby the first electric wire 20 and the second electric wire 30 are held along a predetermined path. In other words, the base member 40 can be said to be a member having a main surface that holds the first electric wire 20 and the second electric wire 30 along a predetermined path.
[0031] The base member 40 has a bending path portion 41. Here, the base member 40 includes a first band-shaped portion 42 and a second band-shaped portion 43. The first band-shaped portion 42 is formed in an elongated rectangular shape. The second band-shaped portion 43 is also formed in an elongated rectangular shape. The first band-shaped portion 42 and the second band-shaped portion 43 extend in directions that intersect with each other. The portion where the first band-shaped portion 42 and the second band-shaped portion 43 intersect is defined as the bending path portion 41.
[0032] Here, the base end of the first band-shaped portion 42 and the base end of the second band-shaped portion 43 are connected to each other. The first band-shaped portion 42 and the second band-shaped portion 43 extend in directions perpendicular to each other. Therefore, the base member 40 has a shape in which the first band-shaped portion 42 and the second band-shaped portion 43 are connected to each other in an L-shape. The bent path portion 41 is a path that bends at an angle of 90 degrees.
[0033] However, the first band-shaped portion 42 and the second band-shaped portion 43 may be bent in the base member 40 so as to intersect at an angle other than a right angle, and the bent path portion 41 may be a path that bends at an angle other than 90 degrees. The bent path portion 41 may be a path that bends in a curved shape. For example, a curved band-shaped portion may be provided between the linear first band-shaped portion 42 and the linear second band-shaped portion 43. The base member may have a branch portion. At least two band-shaped portions extend from the branch portion in a direction in which they intersect with each other. For this reason, the branch portion includes a bent path portion. An example of a base member having a branch portion will be described later.
[0034] The first electric wire 20 is arranged so as to bend along the bending path portion 41. The first electric wire 20 has a curved section 21, a first straight section 23, and a second straight section 24. The curved section 21 is a section that is arranged so as to bend along the bending path portion 41. The first straight section 23 is a section that extends linearly along the first band-shaped portion 42. The second straight section 24 is a section that extends linearly along the second band-shaped portion 43. The curved section 21 is a section between the first straight section 23 and the second straight section 24.
[0035] Here, the second electric wire 30 is arranged to bend along the bending path portion 41 together with the first electric wire 20. The second electric wire 30 has a curved section 31, a first straight section 33, and a second straight section 34. The curved section 31 is a section that is arranged to bend along the bending path portion 41. The first straight section 33 is a section that extends linearly along the first band-shaped portion 42. The second straight section 34 is a section that extends linearly along the second band-shaped portion 43. The curved section 31 is a section between the first straight section 33 and the second straight section 34.
[0036] However, the path of the second electric wire 30 on the base member 40 is not particularly limited and can be set as appropriate. For example, the second electric wire 30 may be arranged not along the bent path portion 41. In this case, the second electric wire 30 may be arranged along the first electric wire 20 on either one side or the other side of the bent path portion 41. The second electric wire 30 may be arranged not along the first electric wire 20 at all. It is preferable that the second electric wire 30 is arranged along the first electric wire 20 on at least one side or the other side of the bent path portion 41.
[0037] One end of the first electric wire 20 extends from the tip of the first strip-shaped portion 42 and is connected to the connector 60. The other end of the first electric wire 20 extends from the tip of the second strip-shaped portion 43 and is connected to the connector 61. One end of the second electric wire 30 extends from the tip of the first strip-shaped portion 42 and is connected to a connector 62 different from the connector 60. The other end of the second electric wire 30 extends from the tip of the second strip-shaped portion 43 and is connected to a connector 63 different from the connector 61. One end of the first electric wire 20 and one end of the second electric wire 30 may be connected to the same connector. The other end of the first electric wire 20 and the other end of the second electric wire 30 may be connected to the same connector. The end of each electric wire may be connected to a connector without extending from the base member 40. In this case, the connector may be fixed to the base member 40.
[0038] At the entrance side along the extension direction of the bending path portion 41, the first electric wire 20 extends so as to pass through a first side portion 45 along the width direction of the base member 40. At the exit side along the extension direction of the bending path portion 41, the first electric wire 20 extends so as to pass through a second side portion 46 along the width direction of the base member 40. The terms entrance and exit are used to distinguish one side and the other side along the extension direction of the bending path portion 41. Here, the connector 60 side with respect to the intermediate portion of the first electric wire 20 is used as the entrance side, and the connector 61 side is used as the exit side. Of course, the connector 61 side can be used as the entrance side, and the connector 60 side can be used as the exit side. The terms first side portion 45 and second side portion 46 are used to distinguish one side and the other side along the width direction of the base member 40. Here, the thickness direction of the base member 40 is the up-down direction, the direction toward which the main surface to which the first electric wire 20 and the second electric wire 30 are fixed is the up direction, and when a cross section along a direction perpendicular to the extension direction of the first electric wire 20 is viewed from the connector 60 side, the right side portion is the first side portion 45 and the left side portion is the second side portion 46.
[0039] The first electric wire 20 passes through the first side portion 45 in the first straight section 23 and passes through the second side portion 46 in the second straight section 24. The first electric wire 20 shifts from the first side portion 45 towards the second side portion 46 in the curved section 21.
[0040] At the entrance side along the extension direction of the bending path portion 41, the second electric wire 30 extends to pass through the second side portion 46 further than the first electric wire 20. At the exit side along the extension direction of the bending path portion 41, the second electric wire 30 extends to pass through the first side portion 45 further than the first electric wire 20. The second electric wire 30 passes through the second side portion 46 in the first straight section 33, and passes through the first side portion 45 in the second straight section 34. The second electric wire 30 shifts from the second side portion 46 toward the first side portion 45 in the curved section 31.
[0041] The first electric wire 20 and the second electric wire 30 cross each other at the bent path portion 41. At the crossing portion between the first electric wire 20 and the second electric wire 30, the second electric wire 30 is located closer to the base member 40 than the first electric wire 20.
[0042] In the curved section 21, the first electric wire 20 may be arranged to be curved with a radius of curvature equal to or greater than the minimum radius of curvature set for the first electric wire 20. In the curved section 31, the second electric wire 30 may be arranged to be curved with a radius of curvature equal to or greater than the minimum radius of curvature set for the second electric wire 30. The minimum radius of curvature set for the electric wire here is a value set to prevent excessive bending of the electric wire, and generally tends to have a positive correlation with the difficulty of bending the electric wire. In other words, the harder the electric wire is to bend, the larger the minimum radius of curvature tends to be, and the easier the electric wire is to bend, the smaller the minimum radius of curvature tends to be. Here, since the second electric wire 30 is easier to bend than the first electric wire 20, the minimum radius of curvature set for the second electric wire 30 is smaller than the minimum radius of curvature set for the first electric wire 20.
[0043] In the bent section, the four second electric wires 30 are bent with different radii of curvature. For example, the centers of curvature of the four second electric wires 30 may be the same. In this case, the radii of curvature of the second electric wires 30 increase as they move away from the center of curvature. The radius of curvature of the second electric wire 30 arranged on the outermost side among the four second electric wires 30 is larger than the radius of curvature of the first electric wire 20. However, the radius of curvature of the second electric wire 30 arranged on the outermost side among the four second electric wires 30 may be the same as or smaller than the radius of curvature of the first electric wire 20.
[0044] The first fixing portion 50 is a fixing portion between the first electric wire 20 and the base member 40. Here, a plurality of first fixing portions 50 are provided at intervals from each other along the extending direction of the first electric wire 20. The first electric wire 20 is fixed to the base member 40 via the plurality of first fixing portions 50 and is held in a predetermined path relative to the base member 40. The plurality of first fixing portions 50 fix at least a linearly extending portion of the first electric wire 20 to the base member 40. Here, the first electric wire 20 extending linearly means that the first electric wire 20 extends along one direction when the main surface of the base member 40 is observed in a plan view. The first fixing portion 50 fixes the first electric wire 20 to the base member 40 in a bent state. A portion of the first electric wire 20 other than the portion fixed by the first fixing portion 50 may be bent and fixed to the base member 40.
[0045] The first electric wire 20 is fixed to the base member 40 via the entrance-side first fixing portion 50A at the entrance side along the extension direction of the bent path portion 41. The first electric wire 20 is fixed to the base member 40 via the exit-side first fixing portion 50B at the exit side along the extension direction of the bent path portion 41. The first electric wire 20 is not fixed to the base member 40 between the entrance-side first fixing portion 50A and the exit-side first fixing portion 50B. The first electric wire 20 crosses the second electric wire 30 between the entrance-side first fixing portion 50A and the exit-side first fixing portion 50B.
[0046] The second fixing portion 52 is a fixing portion between the second electric wire 30 and the base member 40. Here, a plurality of second fixing portions 52 are provided at intervals from each other along the extending direction of the second electric wire 30. The second electric wire 30 is fixed to the base member 40 via the plurality of second fixing portions 52 and is held in a predetermined path relative to the base member 40. The plurality of second fixing portions 52 fix at least a portion of the second electric wire 30 that extends linearly to the base member 40. Here, the second electric wire 30 extending linearly may be understood to be the same as the first electric wire 20 extending linearly. The second fixing portion 52 fixes the second electric wire 30 to the base member 40 in a bent state. The portion of the second electric wire 30 other than the portion fixed by the second fixing portion 52 is bent and fixed to the base member 40.
[0047] The second electric wire 30 is fixed to the base member 40 via the entrance-side second fixing portion 52A at the entrance side along the extension direction of the bent path portion 41. The second electric wire 30 is fixed to the base member 40 via the exit-side second fixing portion 52B at the exit side along the extension direction of the bent path portion 41. The second electric wire 30 is not fixed to the base member 40 between the entrance-side second fixing portion 52A and the exit-side second fixing portion 52B. The second electric wire 30 crosses the first electric wire 20 between the entrance-side second fixing portion 52A and the exit-side second fixing portion 52B.
[0048] At least one of the entrance side first fixing portion 50A and the exit side first fixing portion 50B is a long fixing portion 50L. The long fixing portion 50L is a fixing portion in which the length dimension of the first electric wire 20 fixed to the base member 40 is longer than both the length dimension of the entrance side second fixing portion 52A fixing the second electric wire 30 to the base member 40 and the length dimension of the exit side second fixing portion 52B fixing the second electric wire 30 to the base member 40. Here, the exit side first fixing portion 50B is the long fixing portion 50L. Here, the entrance side first fixing portion 50A is not the long fixing portion 50L. The entrance side first fixing portion 50A is a short fixing portion 50S. The short fixing portion 50S is a fixing portion in which the length dimension of the first electric wire 20 fixed to the base member 40 is shorter than the length dimension of the long fixing portion 50L fixing the first electric wire 20 to the base member 40. The short fixing portion 50S has, for example, the same length dimension as the inlet side second fixing portion 52A fixing the second electric wire 30 to the base member 40 and the same length dimension as the outlet side second fixing portion 52B fixing the second electric wire 30 to the base member 40.
[0049] The fixing manner of the first electric wire 20 and the second electric wire 30 to the base member 40 may be such that the first electric wire 20 or the second electric wire 30 is fixed to the base member 40 at a partial location in the extending direction thereof, and may be a contact portion fixing or a non-contact portion fixing. Here, the contact portion fixing means that the first electric wire 20 or the second electric wire 30 and the base member 40 are fixed by being attached to each other at a contact portion. The non-contact portion fixing means a fixing manner other than the contact portion fixing. The non-contact portion fixing means, for example, a fixing member such as a sewing thread or an adhesive tape holds the first electric wire 20 or the second electric wire 30 toward the base member 40 and maintains the pressed state. In the following, the first electric wire 20 or the second electric wire 30 and the base member 40 are described as being in a contact portion fixing state.
[0050] The manner of fixing the contact parts may be indirect fixing of the contact parts, direct fixing of the contact parts, or both may be used in different regions. Here, indirect fixing of the contact parts refers to the first electric wire 20 or the second electric wire 30 and the base member 40 being indirectly attached and fixed via an indirect fixing part such as an adhesive, a pressure sensitive adhesive, or a double-sided adhesive tape provided between them. Direct fixing of the contact parts refers to the first electric wire 20 or the second electric wire 30 and the base member 40 being directly attached and fixed without using a separately provided adhesive or the like. In direct fixing of the contact parts, for example, it is considered that the first electric wire 20 or the second electric wire 30 and the base member 40 are attached and fixed by melting a resin contained in at least one of them.
[0051] When the state of directly fixing the contact parts is formed, the resin may be melted by, for example, heat or a solvent. That is, the state of directly fixing the contact parts may be a state of directly fixing the contact parts by heat or a state of directly fixing the contact parts by a solvent. Preferably, the state of directly fixing the contact parts by heat is used.
[0052] At this time, the means for forming the state of direct fixation of the contact parts is not particularly limited, and known means such as welding, fusion, and welding can be used. For example, when the state of direct fixation of the contact parts by heat is formed by fusion, various fusion means such as ultrasonic fusion, heat and pressure fusion, hot air fusion, and high frequency fusion can be adopted. Furthermore, when the state of direct fixation of the contact parts is formed by these means, the first electric wire 20 or the second electric wire 30 and the base member 40 are in a state of direct fixation of the contact parts by the means. Specifically, for example, when the state of direct fixation of the contact parts is formed by ultrasonic fusion, the first electric wire 20 or the second electric wire 30 and the base member 40 are in a state of direct fixation of the contact parts by ultrasonic fusion. Here, the first fixing part 50 is a part that fusion fixes the first electric wire 20 to the base member 40, and the second fixing part 52 is a part that fusion fixes the second electric wire 30 to the base member 40. In particular, the description is given assuming that these fusion-fixed parts are fixed parts by ultrasonic fusion. That is, the first fixing portion 50 is a spot fusion portion where the resin constituting the base member 40 and the resin constituting the coating of the first electric wire 20 are fixed by ultrasonic welding. The second fixing portion 52 is a spot fusion portion where the resin constituting the base member 40 and the resin constituting the coating of the second electric wire 30 are fixed by ultrasonic welding.
[0053] The base member 40 may be a member having a main surface for fixing the first electric wire 20 and the second electric wire 30 as described above, and may be formed in a sheet shape or a three-dimensional shape. The main surface may be a flat surface, a curved surface, an uneven surface, or a surface in which a flat surface and another curved surface are combined. 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 to be easily bent in the thickness direction.
[0054] The material constituting the base member 40 is not particularly limited, but the base member 40 is preferably formed of a material containing a resin such as PVC, PE, PET (polyethylene terephthalate), or PP (polypropylene). The base member 40 may be a sheet material with a uniformly filled interior, or a nonwoven sheet, etc. The base member 40 may contain a material such as metal. The sheet member may be a single layer, or may be a multi-layer laminate. When a multi-layer laminate is used, for example, the sheet member may be a laminate of a resin layer and a resin layer. More specifically, for example, the sheet member may be a laminate of a resin sheet material with a uniformly filled interior and a nonwoven sheet. Also, for example, the sheet member may be a laminate of a resin layer and a metal layer.
[0055] <Effects, etc.> According to the wiring member 10 configured as above, when the first electric wire 20 passes through the bending path portion 41, the first electric wire 20 moves from the first side portion 45 along the width direction of the base member 40 to the second side portion 46. This makes it easier for the first electric wire 20 to bend at an appropriate angle. This allows the electric wire to be more appropriately positioned with respect to the bending path portion 41 of the base member 40.
[0056] For example, when the first electric wire 20 passes through the bending path section 41, if it is disposed along the inner periphery along the width direction of the base member 40, the radius of curvature may become too small. Also, for example, when the first electric wire 20 passes through the bending path section 41, if it is disposed along the outer periphery along the width direction of the base member 40, the area in which the second electric wire 30 is disposed may become narrow, or the first electric wire 20 may cross one second electric wire 30 twice in one bending path section 41. When the first electric wire 20 passes through the bending path section 41, it moves from the first side portion 45 along the width direction of the base member 40 to the second side portion 46, thereby preventing these situations. Also, the first electric wire 20, which is harder to bend than the second electric wire 30, is located in the first side portion 45 or the second side portion 46 along the width direction of the base member 40, so that the wiring member 10 can be easily handled when the wiring member 10 is assembled to a vehicle or the like.
[0057] Furthermore, the first electric wire 20 and the second electric wire 30 cross each other in the bending path section 41. Even in this case, when the first electric wire 20 passes through the bending path section 41, the first electric wire 20 moves from the first side portion 45 along the width direction of the base member 40 to the second side portion 46, so that when the second electric wire 30 crosses the first electric wire 20, the number of crossing points becomes one, and the crossing state becomes stable.
[0058] Moreover, the second electric wire 30 is arranged to bend along the bending path portion 41, and at the entrance side along the extending direction of the bending path portion 41, the second electric wire 30 extends to pass through the second side portion 46 of the base member 40 more than the first electric wire 20, and at the exit side along the extending direction of the bending path portion 41, the second electric wire 30 extends to pass through the first side portion 45 of the base member 40 more than the first electric wire 20. This prevents the path of the second electric wire 30 from becoming cramped even when the second electric wire 30 and the first electric wire 20 are arranged to bend along the bending path portion 41.
[0059] Moreover, the second electric wires 30 are arranged so as to bend along the bent path portion 41, and the radius of curvature of the second electric wire 30 arranged on the outermost side among the second electric wires 30 is larger than the radius of curvature of the first electric wire 20. This makes it easier for the second electric wires 30 to be arranged so as to bend along the bent path portion 41.
[0060] Furthermore, at the intersection between the first electric wire 20 and the second electric wire 30, the second electric wire 30 is located closer to the base member 40 than the first electric wire 20. This prevents the second electric wire 30 from being separated from the base member 40 by the first electric wire 20.
[0061] Furthermore, at the entrance side along the extension direction of the bending path portion 41, the first electric wire 20 is fixed to the base member 40 via the entrance-side first fixing portion 50A, and the second electric wire 30 is fixed to the base member 40 via the entrance-side second fixing portion 52A. At the exit side along the extension direction of the bending path portion 41, the first electric wire 20 is fixed to the base member 40 via the exit-side first fixing portion 50B, and the second electric wire 30 is fixed to the base member 40 via the exit-side second fixing portion 52B. At least one of the entrance-side first fixing portion 50A and the exit-side first fixing portion 50B is a long fixing portion 50L whose length dimension for fixing the first electric wire 20 to the base member 40 is longer than both the length dimension for fixing the second electric wire 30 to the base member 40 by the entrance-side second fixing portion 52A and the length dimension for fixing the second electric wire 30 to the base member 40 by the exit-side second fixing portion 52B. The first electric wire 20 is less likely to be kept in a bent state than the second electric wire 30. Even in this case, since at least one of the inlet-side first fixing portion 50A and the outlet-side first fixing portion 50B is the long fixing portion 50L, the first electric wire 20 is more likely to be kept in a bent state.
[0062] [Embodiment 2] A wiring member according to embodiment 2 will be described. Fig. 2 is a plan view showing a wiring member 110 according to embodiment 2. In the description of this embodiment, the same components as those described so far are given the same reference numerals and the description thereof will be omitted.
[0063] The base member 140 includes a first bending path portion 41 and a second bending path portion 141. Here, the first bending path portion 41 is the same as the bending path portion 41 in the first embodiment. The arrangement of the first electric wire 20 and the second electric wire 30 in the first bending path portion 41 is also the same as in the first embodiment. The second bending path portion 141 is located on the exit side along the extension direction of the first bending path portion 41. The entrance side along the extension direction of the second bending path portion 141 is a portion that connects to the exit side along the extension direction of the first bending path portion 41. The first electric wire 20 is arranged to bend along the first bending path portion 41 and the second bending path portion 141.
[0064] At the entrance side along the extension direction of the second bending path portion 141, the first electric wire 20 extends so as to pass through the second side portion 46, similarly to the exit side along the extension direction of the first bending path portion 41. At the exit side along the extension direction of the second bending path portion 141, the first electric wire 20 extends so as to pass through the first side portion 45. Thereby, the first electric wire 20 moves from the first side portion 45 to the second side portion 46 when passing through the first bending path portion 41, and moves from the second side portion 46 to the first side portion 45 when passing through the second bending path portion 141.
[0065] More specifically, the base member 40 includes a first band portion 42, a second band portion 43, and a third band portion 144. The third band portion 144 is connected to the second band portion 43 at a position different from the first band portion 42. The third band portion 144 extends in a direction intersecting the extending direction of the second band portion 43. The second bending path portion 141 is formed by the second band portion 43 and the third band portion 144. The third band portion 144 is connected to the same side of the second band portion 43 as the side to which the first band portion 42 is connected.
[0066] The first electric wire 20 includes a first curved section 21, a second curved section 22, a first straight section 23, a second straight section 24, and a third straight section 25. The first curved section 21 is a section of the first electric wire 20 bent along the first bent path portion 41, and is the same section as the curved section 21. The second curved section 22 is a section of the first electric wire 20 bent along the second bent path portion 141. The third straight section 25 is a section linearly arranged in the third band-shaped portion 144. The first straight section 23, the first curved section 21, the second straight section 24, the second curved section 22, and the third straight section 25 are connected in this order from the connector 60 side to the connector 61 side. The other end of the first electric wire 20 extends from the tip of the third band-shaped portion 144 and is connected to the connector 61.
[0067] Here, the base member 140 has a branched portion 47. The branched portion 47 is provided in the second bending path portion 141. Here, the base end of the third band-shaped portion 144 is connected to an intermediate portion along the extension direction of the second band-shaped portion 43, thereby generating the branched portion 47. Note that the base end of the third band-shaped portion 144 is connected to the tip end of the second band-shaped portion 43, so that the base member may be configured to have the first bending path portion 41 and the second bending path portion 141 but not have the branched portion 47.
[0068] Two of the four second electric wires 30, the second electric wires 30A, branch off from the first electric wire 20 at the branch portion 47. The second electric wires 30A extend linearly to the tip of the second band-shaped portion 43. The second electric wires 30A are not bent and disposed in the second bending path portion 141. The other end of the second electric wire 30 extends from the tip of the second band-shaped portion 43 and is connected to the connector 64. The second electric wire 30A includes a curved section 31, a first straight section 33, and a second straight section 34, similar to the second electric wire 30 of the first embodiment.
[0069] Two of the four second electric wires 30B are bent and arranged in the second bent path portion 141. The second electric wires 30B extend along the first electric wire 20 in the second bent path portion 141 as well. The second electric wires 30B branch off from the second electric wire 30A at the branch portion 47. The second electric wire 30B includes a first curved section 31, a second curved section 32, a first straight section 33, a second straight section 34, and a third straight section 35. The first curved section 31 is a section of the second electric wire 30 bent and arranged along the first bent path portion 41, and is the same section as the curved section 31. The second curved section 32 is a section of the second electric wire 30 bent and arranged along the second bent path portion 141. The third straight section 35 is a section linearly arranged in the third band-shaped portion 144. The first straight section 33, the first curved section 31, the second straight section 34, the second curved section 32, and the third straight section 35 are connected in this order from the connector 60 side to the connector 61 side.
[0070] At the entrance side along the extending direction of the second bent path portion 141, the second electric wire 30B extends so as to pass through the first side portion 45 further than the first electric wire 20. At the exit side along the extending direction of the second bent path portion 141, the second electric wire 30B extends so as to pass through the second side portion 46 further than the first electric wire 20. The other end of the second electric wire 30B extends from the tip portion of the third band-shaped portion 144 and is connected to the connector 65.
[0071] In the second bend path portion 141, the first electric wire 20 and the second electric wire 30 cross each other. At the intersection of the first electric wire 20 and the second electric wire 30, the second electric wire 30 is located closer to the base member 40 than the first electric wire 20. In the second bend path portion 141, the first electric wire 20 is fixed to the base member 40 by the entrance side first fixing portion 50A and the exit side first fixing portion 50B. In the second bend path portion 141, the second electric wire 30 is fixed to the base member 40 by the entrance side second fixing portion 52A and the exit side second fixing portion 52B. The entrance side first fixing portion 50A in the second bend path portion 141 is the long fixing portion 50L.
[0072] The wiring member 110 of this embodiment can also provide the same effect as the wiring member 10 of embodiment 1. Furthermore, according to the wiring member 110, the first electric wire 20 moves from the first side portion 45 to the second side portion 46 when passing through the first bending path portion 41, and moves from the second side portion 46 to the first side portion 45 when passing through the second bending path portion 141. This makes it easy for the first electric wire 20 to bend at an appropriate angle in each of the first bending path portion 41 and the second bending path portion 141.
[0073] [Note] FIG. 3 is a plan view showing a modification of the wiring member 110 according to the second embodiment.
[0074] In the wiring member 210 according to the modified example, the position where the third strip portion 244 is connected to the second strip portion 43 differs from the position where the third strip portion 144 is connected to the second strip portion 43 in the wiring member 110. The third strip portion 244 is connected to the side of the second strip portion 43 opposite to the side where the first strip portion 42 is connected. Even in this case, the base member 240 has a second bending path portion 241, similar to the base member 140 described above.
[0075] The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually inconsistent. [Explanation of symbols]
[0076] 10 Wiring materials 20 First electric wire (first linear transmission member) 21 Curved section (first curved section) 22 Second curve section 23 First Straight Section 24 Second Straight Section 25 Third Straight Section 30 Second electric wire (second linear transmission member) 31 Curved Section (First Curved Section) 32 Second curve section 33 First Straight Section 34 Second Straight Section 35 Third Straight Section 40, 140, 240 Base material 41 bending path section (first bending path section) 141, 241 Second bending path 42 First Band 43 Second Band 144, 244 Third Band 45 First lateral part 46 Second lateral part 47 Branching section 50 1st fixed part 50A Inlet side first fixed part 50B Outlet side 1st fixed part 50L Long length fixed part 50S short length fixed part 52 Second fixed part 52A Inlet side 2nd fixed part 52B Second fixed part on exit side 60, 61, 62, 63, 64, 65 Connectors
Claims
1. A first linear transmission member; a second linear transmission member that is more easily bent than the first linear transmission member; a base member to which the first linear transmission member and the second linear transmission member are fixed; Equipped with the base member includes a bend path; the first linear transmission member and the second linear transmission member extend in the same direction toward an inlet side along an extension direction of the bending path portion, and are arranged bent along the bending path portion so as to extend in the same direction from an outlet side along the extension direction of the bending path portion, and intersect with each other at the bending path portion, At the inlet side along the extending direction of the bending path portion, the first linear transmission member extends to pass through a first side portion along the width direction of the base member, and the second linear transmission member extends to pass through a second side portion of the base member further than the first linear transmission member, At the outlet side along the extending direction of the bending path portion, the first linear transmission member extends to pass through the second side portion along the width direction of the base member, and the second linear transmission member extends to pass through the first side portion of the base member further than the first linear transmission member, a wiring member, wherein at an intersection between the first linear transmission member and the second linear transmission member, the second linear transmission member is located closer to the base member than the first linear transmission member.
2. The wiring member according to claim 1 , A plurality of the second linear transmission members are arranged to bend along the curved path portion, A wiring member, wherein the radius of curvature of the second linear transmission member arranged on the outermost side among the plurality of second linear transmission members is larger than the radius of curvature of the first linear transmission member.
3. The wiring member according to claim 1 or 2, At the inlet side along the extending direction of the bending path portion, the first linear transmission member is fixed to the base member via an inlet-side first fixing portion, and the second linear transmission member is fixed to the base member via an inlet-side second fixing portion, At the outlet side along the extending direction of the bent path portion, the first linear transmission member is fixed to the base member via an outlet-side first fixing portion, and the second linear transmission member is fixed to the base member via an outlet-side second fixing portion, A wiring member, wherein at least one of the entrance side first fixing portion and the exit side first fixing portion is a long fixing portion whose length dimension for fixing the first linear transmission member to the base member is longer than both the length dimension for fixing the second linear transmission member to the base member by the entrance side second fixing portion and the length dimension for fixing the second linear transmission member to the base member by the exit side second fixing portion.
4. The wiring member according to any one of claims 1 to 3, The bending path portion is a first bending path portion, the base member includes a second bending path portion located on the outlet side along an extension direction of the first bending path portion, the first linear transmission member is disposed so as to be bent along the second bent path portion, an inlet side along the extension direction of the second bending path portion is a portion connected to an outlet side along the extension direction of the first bending path portion, At an inlet side along the extension direction of the second bent path portion, the first linear transmission member extends so as to pass through the second side portion along the width direction of the base member, similarly to an outlet side along the extension direction of the first bent path portion, A wiring member, wherein the first linear transmission member extends so as to pass through the first side portion along the width direction of the base member at an exit side along the extension direction of the second bent path portion.
Citation Information
Patent Citations
Heat-soluble adhesive with wire
JP1983168010U
Wiring material for apparatus and manufacture thereof
JP1992248209A
Wiring member
JP2019207816A
Wiring member
JP2021082510A
Wiring member
JP2021150058A