JP2018038182A - Wire harness branch part protection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire harness branch part protection structure that can improve workability while suppressing the generation of noise.SOLUTION: A branch part 12 of a wire harness 10 consists of a main line 11a of a wire bundle 11 and a branch line 11b of the wire bundle 11 withdrawn from the main line 11a in a direction intersecting therewith. The branch part 12 is wound with a protection sheet 13 that has a male-type surface fastener provided on one surface 21a and a female-type surface fastener provided on the other surface 21b, and the male-type surface fastener and the female-type surface fastener are engaged with each other to maintain the winding state with the protective sheet 13.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a protective structure for a branch portion of a wire harness.

2. Description of the Related Art Conventionally, a wire harness having a branch portion composed of a main line of an electric wire bundle and a branch line of the electric wire bundle branched from the main line is known.
In such a branch portion, for example, a tape (for example, a PVC tape) may be wound for the purpose of maintaining the shape or protecting the shape. In such a case, it is conceivable to wrap a tape having a cushioning property on top of each other in order to suppress a sound generated when the branch portion comes into contact with another member due to vibration or the like.

In recent years, a wire harness in which a corrugated tube is attached to a branch portion for the purpose of further protection is known (see, for example, Patent Document 1).
In the protective structure of the branch portion of the wire harness shown in Patent Document 1, a branch protective material composed of a T-shaped cylindrical portion is externally mounted on the branch portion, and a corrugated tube is attached so as to cover the branch protective material. Yes.

JP 2007-288972 A

  By the way, in the protection structure of the branch part of the wire harness as described above, in the case of attaching the corrugated tube, for example, in order to suppress the sound when the corrugated tube attached to the branch part comes into contact with other members, cushioning is provided. It is conceivable to wind a tape having the same.

  Further, when the branch portion is protected only by the tape, as described above, it is necessary to wrap the tape having a cushioning property in order to suppress the sound when the branch portion comes into contact with other members due to vibration or the like. .

Since any of the protective structures has a labor for installation work, there is still room for improvement in terms of workability.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a protection structure for a branch portion of a wire harness that can improve workability while suppressing generation of noise. .

  A protection structure for a branch portion of a wire harness that solves the above-described problem is a protection structure for a branch portion of a wire harness that includes a trunk line of an electric wire bundle and a branch line of an electric wire bundle that is drawn out in a direction intersecting the main line. The part is provided with a male surface fastener provided on one surface and a protective sheet provided with a female surface fastener on the other surface. The male surface fastener and the female surface fastener As a result of the engagement, the winding state by the protective sheet is maintained.

  According to this configuration, the wound state can be maintained by the male surface fastener and the female surface fastener that are wound around the protective sheet and attached to the protective sheet. Moreover, generation | occurrence | production of noise can be suppressed because each hook-and-loop fastener functions as a cushioning material. Since the protective sheet can be wound by the engagement of the hook-and-loop fasteners, the work of winding a tape is not necessary, and the workability can be improved.

  In the protective structure of the branch portion of the wire harness, the male hook-and-loop fastener may be provided on the inner surface on the wire bundle side, and the female hook-and-loop fastener may be provided on the outer surface on the anti-wire bundle side. preferable.

  According to this configuration, since the soft female surface fastener among the male surface fastener and the female surface fastener is on the outside that easily comes into contact with other members, it is possible to more appropriately suppress the generation of noise.

In the protective structure of the branch portion of the wire harness, it is preferable that a hook-and-loop fastener provided on at least the outer surface on the side opposite to the electric wire bundle is provided on the entire outer surface.
According to this configuration, since the hook-and-loop fastener provided at least on the outer surface on the side opposite to the electric wire bundle is provided on the entire outer surface, generation of noise can be suppressed more reliably.

  In the protective structure of the branch portion of the wire harness, the protective sheet includes a base portion provided along a direction in which the trunk line extends, a trunk winding portion that extends from the base portion and is wound around the trunk wire, It is preferable to have a branch wound portion that extends from the base portion and is wound around the branch line, and the hook-and-loop fastener is provided in the trunk wound portion and the branch wound portion.

  According to this configuration, since the surface fastener is not provided on the base portion, the amount of the surface fastener used can be suppressed.

  According to the protective structure of the branch portion of the wire harness of the present invention, workability can be improved while suppressing the generation of noise.

The perspective view of the wire harness in one Embodiment. The front view of the protection sheet of the wire harness in the same as the above. The rear view of the protection sheet of the wire harness in the same as the above. The expanded sectional view of the protection sheet of the wire harness in the same as the above.

Hereinafter, an embodiment of the wire harness will be described.
As shown in FIG. 1, the wire harness 10 of the present embodiment has a branch portion 12 formed by a trunk line 11 a of the wire bundle 11 and a branch line 11 b of the wire bundle 11 branched in a direction intersecting (orthogonal) from the trunk line 11 a. The protective sheet 13 is wound around.

The branch portion 12 of this embodiment is configured such that the branch line 11b is branched from the trunk line 11a so as to form a substantially T shape.
As shown in FIGS. 2 to 4, the protective sheet 13 includes a sheet main body 21 and surface fasteners 22 and 23 provided on both side surfaces of the sheet main body 21.

The sheet body 21 is made of, for example, polyvinyl chloride (PVC).
The sheet main body 21 includes a rectangular base portion 24 provided along the longitudinal direction of the trunk line 11 a, a trunk winding portion 25 extending from both sides on both ends in the longitudinal direction of the base portion 24, and the base portion 24. And a branch-line-wound portion 26 extending from both sides on the center side in the longitudinal direction.

  A slit S is provided between the trunk winding portion 25 and the branch winding portion 26. Thereby, it is possible to wind the wound portions 25 and 26 around the trunk line 11a and the branch line 11b.

  As shown in FIGS. 2 and 4, the hook-and-loop fastener 22 is provided on the surface 21 a that is the inner side (the wire bundle 11 side) in a state in which the protective sheet 13 is attached to the branch portion 12. Consists of. The hook-and-loop fastener 22 located on the inner side is provided so as to cover the surface 21 a except for the portion of the base portion 24.

  As shown in FIGS. 3 and 4, the hook-and-loop fastener 23 is provided on the surface 21 b that is the outside (on the side of the anti-electric wire bundle 11) when the protective sheet 13 is attached to the branch portion 12. Consists of fasteners. The hook-and-loop fastener 23 located outside is provided so as to cover substantially the entire surface 21b.

  In the sheet body 21 configured as described above, the trunk winding portion 25 is wound around the trunk 11a, and one of the trunk winding portions 25 overlaps the other trunk winding portion 25. . At this time, the winding state is maintained by the engagement of the hook-and-loop fasteners 22 and 23 provided on the surfaces 21a and 21b of the seat body 21 constituting the trunk winding portion 25.

  Further, in the sheet main body 21, the branch line wound portion 26 is wound around the branch line 11b, and one of the branch line wound portions 26 overlaps the other branch line wound portion 26. At this time, the winding state is maintained by the engagement of the hook-and-loop fasteners 22 and 23 provided on the surfaces 21a and 21b of the seat main body 21 constituting the branch winding portion 26.

Next, the operation of the wire harness 10 will be described.
In the wire harness 10 of the present embodiment, a protective sheet 13 is wound around the branch portion 12. The protective sheet 13 is maintained in a wound state by engagement of a surface fastener 22 formed of a male surface fastener and a surface fastener 23 formed of a female surface fastener. For this reason, workability | operativity can be improved compared with tape winding. Moreover, since each hook_and_loop | surface fastener 22 and 23 has cushioning properties, it is possible to suppress generation | occurrence | production of noise even when the branch part 12 contacts with another member.

Next, the effect of this embodiment will be described.
(1) The winding state can be maintained by the male surface fastener 22 and the female surface fastener 23 attached to the protection sheet 13 by winding the protection sheet 13. Moreover, generation | occurrence | production of noise can be suppressed because each hook-and-loop fastener 22,23 functions as a cushioning material. Since the protective sheet 13 can be wound by the engagement of the hook-and-loop fasteners 22 and 23, work for winding a tape is not required, and therefore workability can be improved.

  (2) Since the soft female hook-and-loop fastener 23 in the male hook-and-loop fastener 22 and the female hook-and-loop fastener 23 is on the outside that easily comes into contact with other members, the generation of noise can be more suitably suppressed. .

  (3) Since the surface fastener 23 provided at least on the outer surface (surface 21b) on the side opposite to the electric wire bundle 11 is provided on the entire surface 21b as the outer surface, generation of noise can be suppressed more reliably.

(4) Since the surface fastener 22 is not provided on the surface 21a side of the base portion 24, the amount of the surface fastener 22 used can be suppressed.
In addition, you may change the said embodiment as follows.

  In the above embodiment, the surface fastener 22 is not provided on the surface 21a side of the base portion 24. However, the surface fastener 22 is provided on the surface 21a side of the base portion 24, and the surface fastener 22 is provided on substantially the entire surface 21a. May be adopted.

  In the above embodiment, the male surface fastener 22 is provided on the inner surface 21a and the female surface fastener 23 is provided on the outer surface 21b. However, the female surface fastener 23 is provided on the inner surface 21a. A configuration may be employed in which the male surface fastener 22 is provided on the outer surface 21b.

  -You may combine the said embodiment and each modification suitably.

  DESCRIPTION OF SYMBOLS 10 ... Wire harness, 11 ... Electric wire bundle, 11a ... Trunk, 11b ... Branch line, 12 ... Branch part, 13 ... Protection sheet, 21a ... Surface (inner surface), 21b ... Surface (outer surface), 22 ... Hook fastener (male) Mold surface fastener), 23... Surface fastener (female surface fastener), 24... Base portion, 25.

Claims (4)

A protection structure for a branch portion of a wire harness composed of a trunk line of a wire bundle and a branch line of a wire bundle drawn in a direction intersecting from the trunk line,
The bifurcated portion is provided with a male surface fastener provided on one surface and a protective sheet provided with a female surface fastener on the other surface. The male surface fastener and the female surface A protective structure for a branching portion of a wire harness, wherein the winding state of the protective sheet is maintained by being engaged with a fastener. In the protection structure of the branch part of the wire harness according to claim 1,
The male hook-and-loop fastener is provided on the inner surface on the wire bundle side,
The female-type surface fastener is provided on the outer surface on the side opposite to the bundle of electric wires, and the protective structure for the branch portion of the wire harness. In the protective structure of the branch part of the wire harness according to claim 1 or 2,
A protective structure for a branching portion of a wire harness, wherein a hook-and-loop fastener provided on at least the outer surface on the side opposite to the electric wire bundle is provided on the entire outer surface. In the protection structure of the branch part of the wire harness according to claim 3,
The protective sheet includes a base portion provided along a direction in which the trunk line extends, a trunk winding portion that extends from the base portion and is wound around the trunk line, and extends from the base portion and is wound around the branch line. A winding portion for the branch line,
The said surface fastener is provided in the said to-be-wrapped part for trunk lines, and the to-be-wrapped part for branch lines, The protection structure of the branch part of the wire harness characterized by the above-mentioned.

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