Wire harness and clamp

Abstract

To provide a wire harness which prevents position deviation of a clamp relative to a wiring material and can secure proper workability, and also to provide a clamp.SOLUTION: A wire harness includes: a clip 11 which fits into a through hole formed in a vehicle body; and a wiring part 12 which is formed in a flat plate shape and in which a wiring material W is wired along a longitudinal direction X of a flat plate. The wiring part 12 includes: a base part 31 on which the wiring material W is wired on the other surface 31B opposite to the clip 11; and a lid part 32 which is hinge-connected to the base part 31, is overlapped on the base part 31 and covers the other surface 31B. A plurality of ribs 36 for improving friction force with the wiring material W are formed on the other surface 31B of the base part 31 and the other surface 32B of the lid part 32, which faces the other surface 31B. The wiring material W is wired on the other surface 31B of the base part 31, the other surface 31B is covered with the lid part 32, and the wiring material W is sandwiched between the bae part 31 and the lid part 32 to fix them in a state in which a fixing band 2 is wound around the wiring part 12.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a wire harness and a clamp. [Background technology]

[0002] Patent Document 1 discloses a technology for a wire harness to be installed in a vehicle, which includes a clamp that is attached to a through hole formed in a body panel, a wiring material such as an electric wire supported by the clamp, and a band that secures the wiring material to the clamp. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-192266 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the clamp of the prior art has a flat base plate and a first bent piece and a second bent piece at both ends of the base plate in the longitudinal direction, and the first bent piece and the second bent piece are deformed to fit the outer shape of the wiring material, and a tape member is wound around the wiring material from the first bent piece and the second bent piece to fix it. In this configuration, the contact area between the wiring material and the clamp is reduced, so that the wiring material and the clamp are not sufficiently fixed, and the clamp is likely to be misaligned with respect to the wiring material. Therefore, when the wire harness is assembled to the vehicle, the positions of the through hole and the clamp do not match, making assembly difficult, and there is room for improvement in terms of workability.

[0005] The present invention has been made in consideration of the above circumstances, and aims to provide a wire harness and a clamp that can prevent the clamp from shifting from the position relative to the wiring material, thereby ensuring proper workability. [Means for solving the problem]

[0006] In order to achieve the above object, the wire harness of the present invention comprises a wiring material, a clamp that supports the wiring material, and a fixing member that fixes the clamp to the wiring material. The clamp comprises a clip that fits into a through hole formed in a vehicle body, and a wiring portion that is formed in a flat plate shape and in which the wiring material is routed along the longitudinal direction of the flat plate. The wiring portion has a base portion in which a wiring surface of the wiring material is formed on the surface opposite to the clip, and a lid portion that is connected to the base portion via a hinge and overlaps the base portion to cover the wiring surface. At least one of the wiring surface of the base portion and the opposing surface of the lid portion that faces the wiring surface is formed with an uneven shape that increases friction with the wiring material. The wiring material is routed on the wiring surface and the wiring surface is covered by the lid portion, and the wiring material is sandwiched and fixed between the base portion and the lid portion with a fixing member wrapped around the wiring portion.

[0007] In order to achieve the above-mentioned object, the clamp of the present invention comprises a clip that fits into a through hole formed in a vehicle body, and a routing portion formed in a flat plate shape and in which a wiring material is routed along the longitudinal direction of the flat plate, the routing portion having a base portion having a routing surface for the wiring material formed on the surface opposite the clip, and a lid portion that is connected to the base portion via a hinge and overlaps the base portion to cover the routing surface, and at least one of the routing surface of the base portion and the opposing surface of the lid portion facing the routing surface is formed with an uneven shape that increases friction with the wiring material, and the wiring material is routed on the routing surface and the routing surface is covered by the lid portion, and a fixing member is wrapped around the routing portion, and the wiring material is sandwiched and fixed between the base portion and the lid portion. Effect of the Invention

[0008] According to the wire harness and clamp of the present invention, there is a base part having a wiring surface of the wiring material formed on the surface opposite to the clip, and a lid part connected to the base part via a hinge and overlapping the base part to cover the wiring surface, and at least one of the wiring surface of the base part and the opposing surface of the lid part facing the wiring surface is formed with an uneven shape that increases friction with the wiring material, and the wiring material is wired on the wiring surface and the wiring surface is covered with the lid part, and the wiring material is sandwiched and fixed between the base part and the lid part with a fixing member wrapped around the wiring part, so that the position of the clamp can be prevented from shifting relative to the wiring material. Therefore, it is possible to ensure proper workability when assembling the wire harness to a vehicle. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing a part of a schematic configuration of a wire harness according to the present embodiment. [Diagram 2] FIG. 2 is a diagram showing a state before the wire harness according to the present embodiment is attached to a mounting panel. [Diagram 3] FIG. 3 is a diagram showing a state after the wire harness according to the present embodiment is attached to a mounting panel. [Figure 4] FIG. 4 is a perspective view of the clamp for the wire harness according to the present embodiment, as viewed from the clip side with the cover part open relative to the base part. [Diagram 5] FIG. 5 is a perspective view of FIG. 4 as viewed from the opposite side to the clip. [Figure 6] FIG. 6 is a side cross-sectional view of the wire harness according to the present embodiment, cut along a plane perpendicular to the axis of the wiring material, showing a state in which the fixing bands are fastened. [Figure 7] FIG. 7 is a perspective view showing a part of a schematic configuration of a wire harness according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to this embodiment. In addition, the components in the following embodiments include those that are replaceable and easy for a person skilled in the art, or those that are substantially the same.

[0011] FIG. 1 is a perspective view showing a part of the schematic configuration of the wire harness according to the present embodiment. FIG. 2 is a view showing a state before the wire harness according to the present embodiment is attached to a mounting panel. FIG. 3 is a view showing a state after the wire harness according to the present embodiment is attached to a mounting panel. FIG. 4 is a perspective view of the clamp of the wire harness according to the present embodiment, and is a perspective view of the state in which the cover part is opened relative to the base part, as seen from the clip side. FIG. 5 is a perspective view of FIG. 4, as seen from the opposite side to the clip. FIG. 6 is a side cross-sectional view of the wire harness according to the present embodiment, cut along a plane perpendicular to the axis of the wiring material, and is a view showing a state in which the fixing band is fastened. In these FIGS. 1 to 3, the wire harness is shown in a state before the fixing band is occupied.

[0012] The wire harness WH of this embodiment has a wiring material W used for power supply and signal communication for connecting each device mounted on a vehicle, and the wiring material W is connected to each device via a connector or the like. As shown in FIG. 1, the wire harness WH includes, for example, a conductive wiring material W, a clamp 1 supporting the wiring material W, and a fixing band 2 (fixing member) provided at each end of the clamp 1 in the longitudinal direction and fixing the clamp 1 to the wiring material W. The wire harness WH may further include various components such as an exterior member such as a corrugated tube or a protector, and an electric connection box. In the following description, the first direction of the first direction, the second direction, and the third direction intersecting each other are referred to as the "longitudinal direction X", the second direction as the "width direction Y", and the third direction as the "height direction Z". The longitudinal direction X, the width direction Y, and the height direction Z are typically perpendicular to each other. Here, the longitudinal direction X corresponds to the longitudinal direction of the clamp 1 described above. Further, the width direction Y corresponds to the width direction of a wiring portion 12 of the clamp 1, which will be described later, and the height direction Z corresponds to the height direction of this wiring portion 12.

[0013] The wiring material W is composed of, for example, a metal rod, an electric wire, a bundle of electric wires, etc. A metal rod is a rod-shaped member having electrical conductivity, the outside of which is covered with an insulating covering. An electric wire is a conductor (core wire) made of a plurality of conductive metal strands, the outside of which is covered with an insulating covering. A bundle of electric wires is a bundle of these electric wires. In the example of FIG. 1, the wire harness WH includes one wiring material W, but is not limited to this and may be configured to include a plurality of wiring materials.

[0014] The clamp 1 includes a clip 11 that fits into a through hole formed in the vehicle body, and a wiring portion 12 in which the above-mentioned wiring material W is routed. In this embodiment, the clip 11 and the wiring portion 12 are integrally molded from the same resin material (for example, a thermoplastic resin such as polypropylene or nylon). This configuration makes it possible to easily manufacture the wiring portion 12 that supports the wiring material W.

[0015] The clip 11 is provided at the center of the longitudinal direction X of the wiring portion 12. The clip 11 includes an elliptical base 20 with a major axis extending in the longitudinal direction X of the wiring portion 12, a support 21 protruding from the base 20 in the height direction Z, and a pair of arms 22 joined to the ends of the support 21. The arms 22 each extend from the end of the support 21 toward the base 20 side so as to widen in the longitudinal direction X, and are elastically deformable with the joint with the support 21 as a fulcrum. In addition, a locking step 22A is provided at the end of each of the arms 22. As shown in FIG. 2 and FIG. 3, when the clip 11 is inserted into a through hole 51 formed in a mounting panel 50 of the vehicle body, the locking step 22A of the arm 22 is locked to the periphery of the through hole 51, so that the clip 11 is fitted into the through hole 51.

[0016] The wiring portion 12 is formed in a flat plate shape, and the wiring material W is wired along the longitudinal direction X of the flat plate. Specifically, as shown in Figs. 4 and 5, the wiring portion 12 includes a base portion 31 and a lid portion 32 each formed in a flat plate shape, and a hinge 33 connecting one side edge of the base portion 31 and the lid portion 32 in the longitudinal direction X. The hinge 33 is formed thinner than the base portion 31 and the lid portion 32, and thus has flexibility. Therefore, as shown in Fig. 1, the wiring portion 12 can be made flat as a whole by overlapping the base portion 31 and the lid portion 32 via the hinge 33, and the wiring material W can be wired between the base portion 31 and the lid portion 32 along the longitudinal direction X.

[0017] As described above, the base portion 31 is formed in a flat plate shape, and one surface 31A (front surface) is provided with the clip 11 at the center in the longitudinal direction X. The other surface 31B (surface opposite to the clip) of the base portion 31 becomes a wiring surface along which the wiring material W is wired.

[0018] The cover 32 is formed in a flat plate shape having approximately the same outer shape as the base 31, and as shown in FIG. 4, a protrusion 34 is formed in the center of the longitudinal direction X on one surface 32A (front surface) of the cover 32, protruding in the height direction Z. As shown in FIG. 2 and FIG. 3, the protrusion 34 is formed at a position corresponding to the clip 11 of the base 31 when the cover 32 is overlapped with the base 31. The protrusion 34 has a U-shape in a side view, and protrudes away from the base 31 when the cover 32 is overlapped with the base 31. Therefore, when the wire harness WH is assembled to the mounting panel 50 of the vehicle, even if the worker views the clamp 1 from the cover 32 side, the worker can accurately grasp the position of the clip 11 of the base 31 from the position of the protrusion 34 formed on the cover 32. Therefore, for example by grasping the protrusion 34, a worker can easily and accurately fit the clip 11 of the clamp 1 into the through hole 51 of the mounting panel 50 of the vehicle body, thereby efficiently assembling the wire harness WH to the vehicle.

[0019] As shown in FIG. 4, the base 31 and the lid 32 are located at both ends of the one surface 31A, 32A in the longitudinal direction X, and each of the one surfaces 31A, 32A has a recess 35 recessed in the height direction Z. Specifically, the recess 35 is formed by making the one surface 31A, 32A thinner than other parts of the base 31 and the lid 32, so that the one surface 31A, 32A is recessed in the height direction Z. This recess 35 is a region of the wiring portion 12 around which the fixing band 2 is wound when the base 31 and the lid 32 are overlapped, and is formed over the entire width direction Y in a predetermined region on both ends of the longitudinal direction X. In this embodiment, both ends of the one surface 31A, 32A of the base 31 and the lid 32 are formed higher (thicker) than the recess 35 in the height direction Z, thereby preventing the fixing band 2 from falling off the wiring portion 12 (recess 35).

[0020] As described above, the lid 32 is placed on the base 31 via the hinge 33 to cover the other surface 31B (the wiring surface) of the base 31. Therefore, the other surface 32B of the lid 32 is located on the opposite side to the protruding direction of the protruding portion 34, and becomes the opposing surface facing the other surface 31B of the base 31 when the lid 32 is placed on the base 31. The other surfaces 31B, 32B of the base 31 and the lid 32 are formed with a plurality of ribs 36 located on both ends in the longitudinal direction X and extending in the width direction Y. Specifically, the plurality of ribs 36 are provided in the regions of the other surfaces 31B, 32B corresponding to the recesses 35 described above, and are formed to protrude from the other surfaces 31B, 32B in the height direction Z. In this embodiment, the multiple ribs 36 come into contact with the wiring material W arranged between the base portion 31 and the lid portion 32, and function as uneven shapes that increase the frictional force with the wiring material W.

[0021] The fixing band 2 is a so-called cable tie. The fixing band 2 is provided in recesses 35 formed on both ends of the base portion 31 and the lid portion 32, respectively, and fixes the wiring portion 12 (the base portion 31 and the lid portion 32) to the wiring material W. The fixing band 2 includes a main body portion 41 and a band 42 extending from the main body portion 41. The main body portion 41 is formed with a hole portion (not shown) through which the band 42 can pass, and a locking claw (not shown) protrudes from the inner surface into the hole portion. A locking groove that engages with the locking claw formed on the main body portion 41 is continuously provided on the surface of the band 42. In this embodiment, in the direction in which the fixing band 2 is inserted into the main body portion 41, the locking claw and the locking groove are disengaged, allowing the fixing band 2 to be inserted. On the other hand, in the direction in which band 42 is pulled out from main body 41, the locking claws are engaged with the locking grooves and are not released, so band 42 cannot be pulled out (loosened).

[0022] In this embodiment, the routing portion 12 of the clamp 1 has a base portion 31 on which the other surface 31B (routing surface) along which the routing material W is routed is formed, and a lid portion 32 connected to the base portion 31 by a hinge 33 and overlapping the base portion 31 to cover the other surface 31B, and a plurality of ribs 36 are formed on the other surface 31B of the base portion 31 and the other surface 32B (opposing surface) of the lid portion 32 facing the other surface 31B to increase the frictional force with the routing material W.

[0023] According to this configuration, when the wiring material W is routed on the other surface 31B of the base portion 31 and the other surface 31B is covered with the lid portion 32, and the fixing band 2 is wrapped around the wiring portion 12 and fastened, as shown in FIG. 6, the wiring material W is sandwiched and fixed by a plurality of ribs 36 formed on the other surfaces 31B, 32B of the base portion 31 and the lid portion 32, and the frictional force between the wiring portion 12 and the wiring material W is increased, so that the positional deviation of the clamp 1 with respect to the wiring material W can be prevented. Furthermore, in the direction in which the band 42 is pulled out of the main body portion 41, the locking claw of the fixing band 2 is engaged with the locking groove and is not released, so that the state in which the clamp 1 is fixed to the wiring material W is maintained. Therefore, when the wire harness WH is assembled to the vehicle, the position of the clip 11 of the clamp 1 with respect to the through hole 51 of the mounting panel 50 can be accurately determined, and proper workability can be ensured.

[0024] As described above, the wire harness WH and the clamp 1 of this embodiment include the clip 11 that fits into the through hole 51 formed in the mounting panel 50 of the vehicle body, and the routing portion 12 that is formed in a flat plate shape and in which the routing material W is routed along the longitudinal direction X of the flat plate. The routing portion 12 includes a base portion 31 that serves as a routing surface for the routing material W on the other surface 31B opposite to the clip 11, and a base portion 31 that is connected to the base portion 31 via a hinge 33 and overlaps the base portion 31. and a lid portion 32 covering the surface 31B of the base portion 31, and a plurality of ribs 36 for increasing the frictional force with the wiring material W are formed on at least one of the other surface 31B of the base portion 31 and the other surface 32B of the lid portion 32 facing the other surface 31B, and the wiring material W is fixed by sandwiching it between the base portion 31 and the lid portion 32 in a state where the wiring material W is routed to the other surface 31B of the base portion 31 and the other surface 31B is covered with the lid portion 32, and the fixing band 2 is wrapped around the wiring portion 12. Therefore, the wiring material W is fixed by being sandwiched between the plurality of ribs 36 formed on the other surfaces 31B, 32B of the base portion 31 and the lid portion 32, and the frictional force between the wiring portion 12 and the wiring material W is increased, thereby preventing the clamp 1 from being displaced relative to the wiring material W. Therefore, the wire harness WH and clamp 1 of this embodiment can accurately determine the position of the clip 11 of the clamp relative to the through hole 51 of the mounting panel 50, thereby preventing the clamp from shifting out of position relative to the wiring material when assembling the wire harness WH to a vehicle, thereby ensuring proper workability.

[0025] In the wire harness WH and the clamp 1 of this embodiment, the base 31 and the cover 32 have recesses 35 on both ends in the longitudinal direction X, one of the faces 31A and 32A of which is recessed in the height direction Z and around which the fixing band 2 is wound, and the multiple ribs 36 are formed in the areas corresponding to the recesses 35 on the other faces 31B and 32B of the base 31 and the cover 32. Therefore, the fastening force of the fixing band 2 wound around the recess 35 can be directly transmitted to the multiple ribs 36 formed in the areas corresponding to the recesses 35. Therefore, the wiring material W can be firmly fixed by the multiple ribs 36 formed on the other faces 31B and 32B of the base 31 and the cover 32, and the positional deviation of the clamp 1 relative to the wiring material W can be prevented.

[0026] In the wire harness WH and the clamp 1 of this embodiment, the cover 32 has a protruding portion 34, one surface 32A of which protrudes in the height direction Z, at a position corresponding to the clip 11 in the longitudinal direction X. Therefore, even if an operator views the clamp 1 from the cover 32 side when assembling the wire harness WH to the mounting panel 50 of the vehicle, the operator can accurately grasp the position of the clip 11 of the base portion 31 from the position of the protruding portion 34 formed on the cover 32. Therefore, for example, by gripping the protruding portion 34, the operator can easily and accurately fit the clip 11 of the clamp 1 into the through hole 51 of the mounting panel 50 of the vehicle body, thereby efficiently assembling the wire harness WH to the vehicle.

[0027] Next, a modified example of this embodiment will be described. Fig. 7 is a perspective view showing a part of the schematic configuration of a wire harness according to the modified example. In this modified example, the wire harness WH1 differs from the configuration of the above-mentioned embodiment in that the wiring material W is branched in the clamp 1. The above-mentioned clamp 1, fixing band 2, and wiring material W are the same as those described above, so they are denoted by the same reference numerals and their description will be omitted.

[0028] In the above embodiment, the protrusion 34 formed on the cover 32 of the clamp 1 allows the position of the clip 11 of the base 31 overlapping the cover 32 to be accurately grasped. Furthermore, as shown in Fig. 7, the protrusion 34 has a gap 37 formed between it and the other surface 31B (routing surface) of the base 31. The gap 37 opens in the width direction Y of the protrusion 34. The wire harness WH1 has a branched wiring material W1 that is partially branched out of a plurality of wiring materials W (two in Fig. 7), and the branched wiring material W1 can be drawn out to the outside along the width direction Y of the clamp 1 through the gap 37.

[0029] According to this configuration, the branch wiring material W1 branched off from the wiring material W can be easily pulled out in the width direction Y of the clamp 1 by using the gap 37 between the protrusion 34 and the base part 31. In addition, since the portion where the branch wiring material W1 branches off from the wiring material W is protected from the outside by the protrusion 34, the application of external force to this branched portion is prevented, and the assembly work of the wiring material W and the wire harness WH1 including the branch wiring material W1 to the vehicle can be performed reliably and efficiently.

[0030] The wire harness and the clamp according to the embodiment of the present invention described above are not limited to the above-mentioned embodiment, and various modifications are possible within the scope of the claims. For example, in the above description, a configuration in which a plurality of ribs 36 extending in the width direction Y intersecting with the wiring material W are provided as an uneven shape for increasing the frictional force with the wiring material W is exemplified, but other configurations may be used as long as they increase the frictional force with the wiring material W. For example, the uneven shape may be provided by providing a plurality of columnar or hemispherical protrusions protruding in the height direction in the area corresponding to the above-mentioned recess 35 on the other surfaces 31B and 32B. In addition, in the above description, a configuration in which a plurality of ribs 36 as an uneven shape are provided on the other surfaces 31B and 32B of the base portion 31 and the lid portion, respectively, is exemplified, but a configuration in which they are provided on at least one of the other surfaces 31B and 32B may be used. In the above description, a fixing band is exemplified as a fixing member for fixing the wiring portion of the clamp to the wiring material, but this is not limited thereto, and for example, the wiring portion may be fixed by wrapping an adhesive tape (fixing member) around the outside of the wiring portion. In the above description, the wiring material is described as a conductive electric wire or the like, but this is not limited thereto. [Explanation of symbols]

[0031] 1 Clamp 2 Fixing band (fixing part) 11 Clips 12 Routing section 31 Base 31A One side (front) 31B The other side (routing side) 32 Lid 32A One side (front) 32B The other side (opposing side) 33 Hinge 34 Protrusion 35 Recess 36 Rib (uneven shape) 37 Gap 50 Mounting Panel 51 Through hole W Routing material W1 Branch cable WH, WH1 Wire harness X Longitudinal direction Y Width direction Z height direction

Claims

1. The wiring material, A clamp for supporting the wiring material; A fixing member for fixing the clamp to the wiring material, The clamp includes a clip that fits into a through hole formed in a vehicle body; A wiring portion formed in a flat plate shape and in which the wiring material is wired along the longitudinal direction of the flat plate, The wiring portion has a base portion on which a wiring surface of the wiring material is formed on a surface opposite to the clip, and a lid portion connected to the base portion via a hinge and overlapping the base portion to cover the wiring surface, and at least one of the wiring surface of the base portion and the opposing surface of the lid portion facing the wiring surface is formed with an uneven shape that increases friction with the wiring material, A wire harness characterized in that the wiring material is routed on the routing surface, the routing surface is covered with the lid portion, and the fixing member is wrapped around the routing surface, and the wiring material is sandwiched and fixed between the base portion and the lid portion.

2. 2. The wire harness according to claim 1, wherein the base portion and the cover portion each have a recess on both ends in the longitudinal direction, the recess being recessed in a height direction intersecting the longitudinal direction, to which the fixing member is attached, and the uneven shape is formed in an area corresponding to the recess on the routing surface and the opposing surface.

3. 3. The wire harness according to claim 1, wherein the cover portion is provided with a protruding portion, the protruding portion having a surface protruding in a height direction intersecting with the longitudinal direction, at a position corresponding to the clip in the longitudinal direction.

4. The protrusion has a gap formed between the protrusion and the routing surface of the base portion, The wire harness according to claim 3 , further comprising a branch wiring material that is pulled out from the clamp through the gap and branches off from the wiring material.

5. A clip that fits into a through hole formed in a vehicle body; A wiring portion formed in a flat plate shape and in which a wiring material is arranged along the longitudinal direction of the flat plate, The wiring portion has a base portion on which a wiring surface of the wiring material is formed on a surface opposite to the clip, and a lid portion connected to the base portion via a hinge and overlapping the base portion to cover the wiring surface, and at least one of the wiring surface of the base portion and the opposing surface of the lid portion facing the wiring surface is formed with an uneven shape that increases friction with the wiring material, A clamp characterized in that the wiring material is routed on the routing surface, the routing surface is covered with the lid portion, and a fixing member is wrapped around the routing surface, and the wiring material is sandwiched and fixed between the base portion and the lid portion.

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