JP2018037304A - Wire Harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire harness capable of suppressing generation of sound when contacted with other members while enhancing workability.SOLUTION: An exterior part 12 of a wire harness has an adhesive layer 21 positioned at an inner side of a diameter direction which is a wire bundle side and an outer coat layer 22 consisting of a fiber material laminated onto the adhesive layer 21. The outer coat layer 22 is constituted so that an orientation direction of the fiber becomes a direction crossing the adhesive layer 21.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a wire harness.

  2. Description of the Related Art Conventionally, for example, a wire harness routed inside an automobile has a wire bundle that is roughly wound with tape covered with an exterior material such as a corrugated tube, thereby preventing the wire bundle from being damaged by interference with other members. (For example, refer to FIG. 7 of Patent Document 1).

  In such a wire harness, since the slit (split groove) is provided in the longitudinal direction of the corrugated tube, the corrugated tube is easily attached to the wire bundle.

JP-A-10-248137

  By the way, in the wire harness as described above, a slit is provided in the corrugated tube that is an exterior part, and therefore, for example, an operation of winding a tape half-wrap around the outer periphery of the corrugated tube so that the electric wire does not protrude from the slit and is damaged. It is necessary. This leaves room for improvement in terms of workability. Moreover, in order to suppress generation | occurrence | production of the sound at the time of another member and a wire harness (corrugated tube) contacting, it is possible to wind a tape with cushioning properties by half-wrapping.

  The present invention has been made to solve the above-mentioned problems, and its object is to provide a wire harness that can suppress the generation of sound when coming into contact with other members while improving workability. It is in.

  A wire harness that solves the above problems includes a wire bundle composed of a plurality of electric wires and an exterior portion that covers the wire bundle, and the exterior portion is an adhesive layer that is located on the radially inner side on the wire bundle side, An outer skin layer made of a fiber material laminated on the adhesive layer, and the outer skin layer is configured such that the orientation direction of the fibers intersects the adhesive layer.

  According to this configuration, since the orientation direction of the fibers in the outer skin layer intersects the adhesive layer, when the other member and the wire harness come into contact with each other, the fibers are easily bent so that the cushioning property is improved and the sound is improved. Occurrence can be suppressed. Moreover, since it is possible to perform two steps of half-wrapping the tape for concealing the slit of the corrugated tube and half-wrapping the cushioning tape in one step, workability can be improved. .

The said wire harness WHEREIN: It is preferable that the said outer skin layer is comprised so that the orientation direction of the fiber may become the direction orthogonal to the said adhesion layer.
According to this configuration, the outer skin layer is configured so that the orientation direction of the fibers is perpendicular to the adhesive layer, so that the fibers are more easily bent, so that cushioning is improved and sound is generated. Can be further suppressed.

The said wire harness WHEREIN: It is preferable that the said exterior part is comprised by strip | belt shape, and is comprised so that the said wire bundle may be covered by half wrap winding.
According to this configuration, the exterior portion is configured in a band shape and is configured to cover the wire bundle by half wrap winding, so that only the half wrap winding is required for the exterior portion having cushioning properties, As in the case of the corrugated tube, it is possible to complete the half-wrapping operation once.

The said wire harness WHEREIN: It is preferable that the said exterior part is comprised by a sheet form, and is wound so that the said wire bundle may be covered.
According to this configuration, the exterior portion is configured in a sheet shape and is configured to be wound so as to cover the electric wire bundle, thereby eliminating the need for a half-wrap winding such as a tape, thereby improving workability. It can be improved further.

  According to the wire harness of this invention, generation | occurrence | production of the sound at the time of contacting with another member can be suppressed, improving workability | operativity.

The perspective view of the wire harness in one Embodiment. The perspective view of the exterior part in the same as the above. The enlarged side view of the exterior part in the same as the above. The perspective view which shows the state which removed the wire harness exterior part in the same as the above. The side view of the wire harness in a modification. Sectional drawing of the wire harness in the same as the above. The top view of the exterior part in the same as the above. Explanatory drawing for demonstrating the attachment method of the exterior part 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 includes an electric wire bundle 11 as an electric wire portion including a plurality of electric wires 11 a and an exterior portion 12 that covers the electric wire bundle 11.

  The plurality of electric wires 11a constituting the electric wire bundle 11 are configured by covering a core wire, which is a bundle of copper wires each having a small diameter, with an insulator made of, for example, polyvinyl chloride (PVC). In addition, you may comprise a core wire with one copper wire with a large diameter. The core wire is not limited to a copper wire, and may be an aluminum wire, for example.

As shown in FIG. 4, the wire bundle 11 is bundled by roughly winding with a tape T in advance.
As shown in FIG. 1, the exterior portion 12 is configured to be wound in a half wrap around a wire bundle 11 bundled by roughly winding a strip-shaped tape material in one direction with a tape T. .

As shown in FIG. 1 to FIG. 3, the exterior portion 12 includes an adhesive layer 21 located on the radially inner side on the wire bundle 11 side, and an outer skin layer 22 made of a fiber material laminated on the adhesive layer 21. Have.
The adhesive layer 21 is made of butyl rubber, and the exterior portion 12 can be attached to the wire bundle 11 by adhesion by self-bonding.

As shown in FIG. 3, the outer skin layer 22 is composed of a polyester fiber material, and is configured such that the fiber orientation direction intersects (orthogonally) the adhesive layer 21.
Next, the operation of the wire harness 10 will be described.

  In the wire harness 10 of the present embodiment, the outer periphery of the wire bundle 11 composed of a plurality of electric wires 11a is covered with a strip-shaped exterior portion 12 by half-wrapping. Here, the exterior part 12 has the outer skin layer 22 which becomes the orientation of a fiber orthogonal to (cross | intersects) with respect to the adhesion layer 21, as mentioned above. For this reason, it becomes the structure that the orientation direction of a fiber substantially follows a radial direction. Thereby, when a wire harness contacts with another member, generation | occurrence | production of a sound is suppressed because the fiber part of the outer skin layer 22 becomes easy to bend.

Next, the effect of this embodiment will be described.
(1) Since the fiber orientation direction in the outer skin layer 22 intersects the adhesive layer 21, when other members come into contact with the wire harness 10, the fibers are easily bent, so that cushioning is improved and sound is improved. Occurrence can be suppressed. In addition, since it is possible to perform the two steps of half wrap winding of the tape for concealing the slit of the corrugated tube and half wrap winding of the cushioning tape only by half wrap winding of the exterior portion 12, workability is improved. Can be improved.

  (2) Since the outer skin layer 22 is configured so that the fiber orientation direction is perpendicular to the adhesive layer 21, the fiber is more easily bent, so that cushioning is improved and sound is generated. It can be suppressed more.

In addition, you may change the said embodiment as follows.
In the above embodiment, the outer portion 12 is half-wrapped around the wire bundle 11 as a strip-shaped tape material, but is not limited thereto.

As shown in FIGS. 5-8, you may employ | adopt the structure wound around the wire bundle 11 by making the exterior part 31 into a sheet form.
The exterior portion 31 has a plurality of groove portions 32 formed on the surface on the outer skin layer 22 side. The groove portion 32 is formed in a direction that intersects the rectangular exterior portion 31 at any side. By providing the groove portions 32 in this way, each groove portion 32 is positioned so as to form a spiral with respect to the wire bundle 11 when the exterior portion 31 is wound around the wire bundle 11. And when the wire harness 10 containing the wire bundle 11 is bent, it becomes easy to deform | transform in the groove part 32, and some bending | flexion is attained like a corrugated tube.

As described above, the exterior part 31 is configured in a sheet shape and wound so as to cover the wire bundle 11, so that half-wrapping like a tape is not necessary, and thus workability is further improved. be able to. Moreover, since the exterior part 31 cross | intersects the orientation direction of the fiber in the outer skin layer 22 with respect to the adhesion layer 21 similarly to the exterior part 12 of the said embodiment,
In addition, the structure which abbreviate | omitted the groove part 32 may be sufficient.

  In the embodiment described above, the fiber orientation direction of the outer skin layer 22 is configured to be orthogonal to the adhesive layer 21, but the outer skin layer 22 is configured such that the orientation direction intersects the adhesive layer. May be configured.

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

  DESCRIPTION OF SYMBOLS 10 ... Wire harness, 11 ... Electric wire bundle, 11a ... Electric wire, 12 ... Exterior part, 21 ... Adhesive layer, 22 ... Outer skin layer, 31 ... Exterior part

Claims (4)

An electric wire bundle comprising a plurality of electric wires, and an exterior portion covering the electric wire bundle,
The exterior part has an adhesive layer located on the radially inner side on the wire bundle side, and an outer skin layer made of a fiber material laminated on the adhesive layer,
The said outer skin layer is comprised so that the orientation direction of the fiber may turn into the direction which cross | intersects with respect to the said adhesion layer, The wire harness characterized by the above-mentioned. The wire harness according to claim 1,
The said outer skin layer is comprised so that the orientation direction of the fiber may become a direction orthogonal to the said adhesion layer, The wire harness characterized by the above-mentioned. In the wire harness according to claim 1 or 2,
The said exterior part is comprised by strip | belt shape, and is comprised so that the said wire bundle may be covered by half wrap winding, The wire harness characterized by the above-mentioned. In the wire harness according to claim 1 or 2,
The said exterior part is comprised by the sheet form, and was wound so that the said wire bundle might be covered, The wire harness characterized by the above-mentioned.

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