JP2022084343A - Wire harness - Google Patents

Abstract

To provide a wire harness with a rigid part which is appropriately hard to bend, and a flexible part which is appropriately easy to bend by a simple structure.SOLUTION: A wire harness 10 comprises: a wire member 30; and an adhesive tape member 40 wound around the wire member 30. Then, the wire harness 10 comprises: a rigid part 61 formed by directly winding the adhesive tape member 40 around the wire member 30; and a flexible part 62 formed by interposing a substrate member 50 between the wire member 30 and the adhesive tape member 40.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to wire harnesses.

Conventionally, as a wire harness distributed inside a vehicle such as an automobile, there is a wire harness in which an adhesive tape member is wound around a plurality of electric wires and bound. Further, as an adhesive tape member used for such a wire harness, there is one in which a large number of columnar small convex portions are provided on the side in contact with the electric wire, and an adhesive layer is provided on the top surface of the columnar small convex portions. (See, for example, Patent Document 1). A wire harness using an adhesive tape member having such a columnar small convex portion is more easily bent than a wire harness using a general adhesive tape member having no columnar small convex portion.

Japanese Unexamined Patent Publication No. 2010-004615

However, in the wire harness as described above, the structure of the adhesive tape member having the columnar small convex portion is special. Further, as the wire harness, a wire harness having a portion having a rigidity that is moderately difficult to bend and a portion having a flexibility that is moderately easy to bend is desired for wiring.

The present disclosure has been made to solve the above problems, and an object of the present invention is to provide a wire harness having a rigid portion that is moderately difficult to bend and a flexible portion that is moderately easy to bend in a simple configuration. It is in.

The wire harness of the present disclosure is a wire harness including an electric wire member and an adhesive tape member wound around the electric wire member, and has a rigid portion in which the adhesive tape member is directly wound around the electric wire member. A flexible portion in which a base member is interposed between the electric wire member and the adhesive tape member is provided.

According to the wire harness of the present disclosure, it is possible to have a structure having a rigid portion that is moderately difficult to bend and a flexible portion that is moderately easy to bend with a simple configuration.

FIG. 1 is a schematic configuration diagram showing a vehicle according to an embodiment. FIG. 2 is a schematic perspective view showing a wire harness in one embodiment. FIG. 3 is a schematic perspective view for explaining a manufacturing process of the wire harness in one embodiment. FIG. 4 is a schematic perspective view for explaining a manufacturing process of a wire harness in another example. FIG. 5 is a schematic perspective view showing a wire harness in another example.

[Explanation of Embodiments of the present disclosure]
First, embodiments of the present disclosure will be listed and described.
The wire harness of the present disclosure is
[1] A wire harness comprising an electric wire member and an adhesive tape member wound around the electric wire member, the rigid portion in which the adhesive tape member is directly wound around the electric wire member, and the electric wire member. It is provided with a flexible portion in which a base member is interposed between the adhesive tape member.

According to the same configuration, a rigid portion in which the adhesive tape member is directly wound around the electric wire member and a flexible portion in which the base member is interposed between the electric wire member and the adhesive tape member are provided. The configuration can be configured to include a rigid portion that is difficult to bend and a flexible portion that is moderately easy to bend.

[2] It is preferable that the base member is provided over the entire circumference in the circumferential direction of the electric wire member.
According to the same configuration, since the base member is provided over the entire circumference in the circumferential direction of the electric wire member, the flexible portion can be appropriately bent in all directions.

[3] It is preferable that the base member is spirally wound around the outer periphery of the electric wire member so that a part of the base member in the width direction overlaps.
According to the same configuration, since the base member is spirally wound around the outer circumference of the electric wire member so that a part of the base member in the width direction overlaps, for example, a wire harness can be easily manufactured. Will be. Specifically, for example, it is possible to wind the base member around the electric wire member and dispose of it by using a winding device similar to the winding device for winding the adhesive tape member.

[4] It is preferable that the electric wire member has a branch line portion branched from the main wire portion, and the flexible portion is provided at a portion including a base end portion of the branch line portion.
According to the same configuration, since the flexible portion is provided at a portion including the base end portion of the branch line portion, for example, the base end of the branch line portion that is bent toward the connected electric device. The part becomes moderately easy to bend.

[5] The base member is preferably a low friction member having a smaller coefficient of friction than the adhesive tape member.
According to the same configuration, since the base member is a low friction member having a smaller coefficient of friction than the adhesive tape member, the electric wire member becomes slippery with respect to the base member, and the flexible portion becomes easy to bend.

[Details of Embodiments of the present disclosure]
Specific examples of the wire harness of the present disclosure will be described below with reference to the drawings. In each drawing, for convenience of explanation, a part of the configuration may be exaggerated or simplified. In addition, the dimensional ratio of each part may differ in each drawing. The term "parallel" or "orthogonal" in the present specification includes not only the case of strictly parallel or orthogonal, but also the case of being substantially parallel or orthogonal within the range in which the action and effect in the present embodiment are exhibited. It should be noted that the present invention is not limited to these examples, and is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

[Structure of vehicle 1]
As shown in FIG. 1, the vehicle 1 has a plurality of electric devices 2 and 3 and a wire harness 10 for electrically connecting the plurality of electric devices 2 and 3. Examples of the electric devices 2 and 3 include a battery, an inverter, a motor, an air conditioner device, a winker device, an airbag device, and the like.

[Structure of wire harness 10]
As shown in FIG. 2, the wire harness 10 includes an electric wire member 30 which is a group of electric wires having a plurality of electric wires 20, an adhesive tape member 40 wound around the electric wire member 30, an electric wire member 30, and an adhesive tape member 40. It has a base member 50 interposed between the two. The electric wire member 30 is formed in a long shape. The electric wire member 30 is formed so as to be bent in a two-dimensional shape or a three-dimensional shape, for example, depending on the wiring path of the wire harness 10.

[Structure of electric wire 20]
Each electric wire 20 is, for example, a coated electric wire having a core wire 21 made of a conductor and an insulating coating 22 covering the outer periphery of the core wire 21. The core wire 21 includes, for example, a stranded wire made by twisting a plurality of metal strands, a columnar conductor made of one columnar metal rod having a solid structure inside, and a tubular conductor having a hollow structure inside. Etc. can be used. Further, as the core wire 21, a stranded wire, a columnar conductor, or a tubular conductor may be used in combination. Examples of the columnar conductor include a single core wire and a bus bar. As the material of the core wire 21, for example, a metal material such as copper-based or aluminum-based can be used.

The insulating coating 22 covers, for example, the outer peripheral surface of the core wire 21 over the entire circumference in the circumferential direction. The insulating coating 22 is made of an insulating material such as a synthetic resin. As the material of the insulating coating 22, for example, a synthetic resin containing a polyolefin resin such as cross-linked polyethylene or cross-linked polypropylene as a main component can be used. As the material of the insulating coating 22, one kind of material can be used alone, or two or more kinds of materials can be used in combination as appropriate.

[Structure of Adhesive Tape Member 40]
The adhesive tape member 40 is formed in a long strip shape. The adhesive tape member 40 has a base material and an adhesive layer provided on one surface of the base material. As the material of the base material, for example, a resin material or paper can be used, and as the resin material, for example, a polyolefin resin such as polyethylene or polypropylene, a polyamide resin such as nylon, or polyvinyl chloride may be used. Can be done. The adhesive tape member 40 is provided by being wound around so as to bundle a plurality of electric wires 20 constituting the electric wire member 30. The adhesive tape member 40 is provided, for example, in a part of the electric wire member 30 in the longitudinal direction. The adhesive tape member 40 is provided so as to cover the outer periphery of the electric wire member 30, for example. The adhesive tape member 40 is spirally wound around the outer circumference of the electric wire member 30 along the longitudinal direction of the electric wire member 30, for example, so that the adhesive layer side faces the electric wire member 30. The adhesive tape member 40 is spirally wound around the outer circumference of the electric wire member 30, for example, so that a part of the adhesive tape member 40 in the width direction overlaps. The adhesive tape member 40 of the present embodiment is spirally wound around the outer circumference of the electric wire member 30 so that half of the adhesive tape member 40 in the width direction overlaps. That is, the adhesive tape member 40 of the present embodiment is so-called half-wrapped around the electric wire member 30.

[Structure of base member 50]
The base member 50 of the present embodiment is made of thin paper. The base member 50 of the present embodiment is formed in a rectangular shape.

As shown in FIG. 3, the base member 50 is provided so as to cover the outer periphery of the electric wire member 30 in a state before the adhesive tape member 40 is wound. The base member 50 is provided in a part of the portion where the adhesive tape member 40 is wound in the longitudinal direction of the electric wire member 30. The base member 50 is provided over the entire circumference in the circumferential direction of the electric wire member 30. The base member 50 of the present embodiment is wound around the electric wire member 30 so that one end portion 50a and the other end portion 50b slightly overlap each other. The surface of the base member 50 is more slippery with respect to the surface of the electric wire member 30 than the surface of the adhesive tape member 40 on the adhesive layer side. In other words, the base member 50 is a low friction member having a smaller coefficient of friction than the adhesive tape member 40.

With the above configuration, the wire harness 10 has a rigid portion 61 in which the adhesive tape member 40 is directly wound around the electric wire member 30, and a flexible portion 62 in which the base member 50 is interposed between the electric wire member 30 and the adhesive tape member 40. Be prepared.

The operation of the wire harness 10 configured as described above will be described.
Since the adhesive tape member 40 is directly wound around the electric wire member 30 in the rigid portion 61, the adhesive tape member 40 prevents the electric wire member 30 from bending even if a bending force is applied, so that the adhesive tape member 40 is appropriately wound. The composition is difficult to bend.

Since the base member 50 is interposed between the electric wire member 30 and the adhesive tape member 40 in the flexible portion 62, the electric wire member 30 slides with respect to the base member 50 when a bending force is applied to the flexible portion 62. The structure is such that the 30 is not hindered from bending so much and is moderately easy to bend.

Next, the effects of the above embodiment will be described below.
(1) A rigid portion 61 in which the adhesive tape member 40 is directly wound around the electric wire member 30 and a flexible portion 62 in which a base member 50 is interposed between the electric wire member 30 and the adhesive tape member 40 are provided. Therefore, with a simple configuration, it is possible to provide a rigid portion 61 that is moderately difficult to bend and a flexible portion 62 that is moderately easy to bend. As a result, when the wire harness 10 is arranged, the rigid portion 61 and the flexible portion 62 are arranged in the right place, so that the wire harness 10 can be satisfactorily arranged.

(2) Since the base member 50 is provided over the entire circumference in the circumferential direction of the electric wire member 30, the flexible portion 62 can be appropriately bent in all directions.
This embodiment can be modified and implemented as follows. The present embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.

(3) Since the base member 50 is a low friction member having a friction coefficient smaller than that of the adhesive tape member 40, the electric wire member 30 becomes slippery with respect to the base member 50, and the flexible portion 62 becomes easy to bend.

In the above embodiment, the base member 50 is formed in a rectangular shape and is wound around the electric wire member 30 so that one end 50a and the other end 50b slightly overlap with each other. Other configurations may be used as long as they are interposed between the tape member 40 and the tape member 40.

For example, as shown in FIG. 4, the base member 70 is formed in a long strip shape, and is spirally wound around the outer periphery of the electric wire member 30 so that a part of the base member 70 in the width direction overlaps. May be. By doing so, for example, the wire harness 10 can be easily manufactured. Specifically, for example, the base member 70 can be wound around the electric wire member 30 and arranged by using a winding device similar to a winding device (not shown) for winding the adhesive tape member 40. Further, for example, since the base member 70 is wound around the electric wire member 30 over a plurality of turns, it is held by the electric wire member 30, and the period until the adhesive tape member 40 is wound. You don't have to keep it in any other way.

-Although not particularly mentioned in the above embodiment, the electric wire member 30 may have a branch wire portion branched from the main wire portion.
For example, as shown in FIG. 5, the electric wire member 30 may have a branch line portion 32 branched from the main wire portion 31, and in this case, the flexible portion 62 may have a base end portion 32a of the branch line portion 32. It may be configured to be provided in the included portion.

In this way, for example, the base end portion 32a of the branch line portion 32, which is to be bent toward the electric device to be connected, is moderately easily bent.
In the above embodiment, the base member 50 is provided over the entire circumference in the circumferential direction of the electric wire member 30, but the present invention is not limited to this, and for example, the base member 50 is more than the entire circumference in the circumferential direction of the electric wire member 30. The configuration may be provided in a small range.

In the above embodiment, the base member 50 is made of thin paper, but if the surface thereof is more slippery with respect to the surface of the electric wire member 30 than the surface of the adhesive tape member 40 on the adhesive layer side, other It may be made of the material of. For example, the base member 50 may be made of cloth or a resin material.

In the above embodiment, the adhesive tape member 40 is so-called half-wrapped around the electric wire member 30, but the present invention is not limited to this, and for example, 1/3 of the adhesive tape member 40 in the width direction overlaps. In addition, it may be configured to be spirally wound around the outer circumference of the electric wire member 30.

[Reference example]
As a reference example, the wire harness 10 may not have the rigid portion 61, and all the portions where the adhesive tape member 40 is provided may be the flexible portion 62 described above. In this way, the wire harness 10 can be configured to have a flexible portion 62 that is moderately easy to bend with a simple configuration.

The technical ideas that can be grasped from the above are described.
(A) A wire harness including an electric wire member and an adhesive tape member wound around the electric wire member, and includes a flexible portion in which a base member is interposed between the electric wire member and the adhesive tape member. Wire harness.

According to the same configuration, since the flexible portion in which the base member is interposed between the electric wire member and the adhesive tape member is provided, it is possible to provide a flexible portion that is moderately easy to bend with a simple configuration.

1 Vehicle 2,3 Electrical equipment 10 Wire harness 20 Wire 21 Core wire 22 Insulation coating 30 Wire member 31 Main wire part 32 Branch wire part 32a Base end part 40 Adhesive tape member 50 Base member (low friction member)
50a One end 50b The other end 61 Rigid part 62 Flexible part 70 Base member (low friction member)

Claims (5)

With electric wire members
A wire harness provided with an adhesive tape member wound around the electric wire member.
A wire harness including a rigid portion in which the adhesive tape member is directly wound around the electric wire member, and a flexible portion in which a base member is interposed between the electric wire member and the adhesive tape member. The wire harness according to claim 1, wherein the base member is provided over the entire circumference in the circumferential direction of the electric wire member. The wire harness according to claim 1 or 2, wherein the base member is spirally wound around the outer periphery of the electric wire member so that a part of the base member in the width direction overlaps. The electric wire member has a branch line portion branched from the main wire portion.
The wire harness according to any one of claims 1 to 3, wherein the flexible portion is provided at a portion including a base end portion of the branch line portion. The wire harness according to any one of claims 1 to 4, wherein the base member is a low friction member having a friction coefficient smaller than that of the adhesive tape member.

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