JP3224014B2 - Vehicle wiring and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wiring and a method of manufacturing the same in a vehicle body such as an automobile, and more particularly, to a method of simply and effectively preventing the generation of noise due to a collision with a vehicle body. The present invention relates to a vehicle wiring and a method of manufacturing the same.

[0002]

2. Description of the Related Art A large number of electric wires forming a circuit network are routed inside a vehicle body such as an automobile. However, in some cases, the electric wire collides with the vehicle body due to vibration during traveling of the vehicle, thereby generating noise (abnormal noise). Therefore, various sound absorbing means have been conventionally proposed in order to prevent generation of noise caused by the collision of the electric wire with the vehicle body.

For example, in Japanese Utility Model Laid-Open No. 56-71014,
As shown in FIG. 4, a flocking protector having a configuration in which flocking 101 is applied to the surface of a tubular protector 100 that covers a wire bundle (not shown) has been proposed. According to this, even if the vehicle body vibrates due to the running of the vehicle, the flocking 101 serves as a cushion, and the electric wire bundle (the protector 10).
0) can be prevented from generating noise when it collides with the vehicle body.

In Japanese Utility Model Application Laid-Open No. 61-18820, as shown in FIG.
There has been proposed a wire harness tube made of a synthetic resin foam having a number of small bubbles. According to this, even if the vehicle body vibrates due to running of the vehicle, the tube 200 serves as a cushion, and the wire bundle 20
It is possible to prevent noise from occurring when the tube 1 (tube 200) collides with the vehicle body.

Further, in Japanese Utility Model Laid-Open No. 64-22022,
As shown in FIG. 6, an electric wire binding tape in which a ridge 300a is formed on an anti-adhesive layer side of an adhesive vinyl tape 300 capable of binding an electric wire bundle 301 has been proposed. According to this, even if the vehicle body vibrates due to running of the vehicle, the ridge 300
a plays a role of a cushion, and can prevent generation of noise when the wire bundle 301 (adhesive vinyl tape 300) collides with the vehicle body.

[0006]

However, the above-mentioned conventional sound absorbing means (the protector 100, the tube 200, and the adhesive vinyl tape 300) all require a lot of time to attach to the electric wire, and the mold used for the manufacture thereof. However, there is a problem that noise control at the time of electric wire collision cannot be easily achieved.

That is, the protector 100 in the Japanese Utility Model Application Laid-Open No. 56-71014, the tube 200 in the Japanese Utility Model Application Laid-Open No. 64-20022, and the adhesive vinyl tape 300 in the Japanese Utility Model Application Laid-Open No. It took a lot of time to wind up and work efficiency was poor.

In Japanese Utility Model Laid-Open No. Sho 56-71014, the protector 100 is formed, in the Japanese Utility Model Laid-Open No. 64-2202, a tube 200 is formed. In addition, there is a problem that a large number of dies are required in addition to the production of the electric wire, and the management of these dies becomes complicated. In particular, a mold for manufacturing these sound absorbing means 100, 200, and 300 had to be prepared according to the change in the number and dimensions of the electric wires.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and can eliminate the trouble of mounting a sound absorbing material, can be manufactured without using any mold, and can be used in a collision with a vehicle body. It is an object of the present invention to provide a vehicle routing electric wire capable of simply and effectively preventing noise from being generated by the vehicle and a method for manufacturing the same.

[0010]

According to a first aspect of the present invention, there is provided an electric wire for vehicle wiring, which is an electric wire routed inside a vehicle, wherein the electric wire is provided on a peripheral surface of an insulating coating of the electric wire. The sound absorbing material made of a granular elastic body is bonded by an adhesive.

According to such an electric wire for vehicle wiring, the sound absorbing material adhered to the insulating coating of the electric wire plays a role of a cushion between the electric wire and the vehicle body, thereby ensuring generation of noise when the vehicle body vibrates. And it can be prevented effectively.

According to a second aspect of the present invention, in the vehicle wiring, the sound absorbing material is a granular sponge. According to such a configuration, more effective prevention of noise generation can be achieved by the sponge having lightness and high elasticity. Further, the light-grained sponge is particularly suitable for spraying the sound absorbing material in the manufacturing method according to the third aspect described below.

According to a third aspect of the present invention, there is provided a method of manufacturing a vehicle wiring wire according to the first or second aspect, wherein an adhesive is sprayed on a peripheral surface of the insulating coating of the wire. After that, the sound absorbing material is sprayed on the peripheral surface of the insulating coating to produce the electric wire for vehicle wiring. According to such a method, the operation of bonding the sound absorbing material to the electric wire can be automatically and easily performed.

According to a fourth aspect of the present invention, there is provided a method of manufacturing a vehicle wiring cable according to the first or second aspect, wherein the insulating coating is provided by immersing the wire in an adhesive layer. The adhesive is adhered to the peripheral surface of the sound absorbing material, and then the electric wire is immersed in the sound absorbing material layer so that the sound absorbing material is adhered to the peripheral surface of the insulating coating, so as to produce the vehicle wiring cable. is there. Even by such a method, the operation of bonding the sound absorbing material to the electric wire can be automatically and easily performed.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an electric wire for vehicle wiring and a method of manufacturing the same according to the present invention. First, an embodiment of an electric wire for vehicle routing according to the present invention will be described with reference to FIG. FIG. 1 is a perspective view showing a vehicle wiring cable according to an embodiment of the present invention.

In FIG. 1, reference numeral 10 denotes a general electric wire in which a conductive wire 11 is covered with an insulating coating 12. The electric wire 1 for vehicle wiring according to the present embodiment applies the adhesive 20 to the outer periphery of the insulating coating 12 of the electric wire 10, and the sound absorbing material 30 made of granular sponge is applied to the outer periphery of the insulating coating 12 by the adhesive 20. It is configured to be bonded in a scattered manner.

Here, the shape of the sound absorbing material 30 is preferably a three-dimensional shape having a flat surface such as a cube, a rectangular parallelepiped, a polygonal pyramid, and a hemisphere. This is because the flat surface serves as an adhesive surface, so that the sound absorbing material 30 can be stably bonded to the insulating coating 12.

The sound absorbing material 30 is not limited to a sponge, but may be any other material as long as the material has elasticity enough to reduce the impact when the electric wire 10 collides with a vehicle body (not shown) due to vibration of the vehicle. For example, rubber or the like may be used.

Next, a first embodiment of a method for manufacturing a vehicle wiring cable according to the present invention will be described with reference to FIGS. 2 (a), 2 (b) and 2 (c).
This will be described with reference to FIG. FIG. 2 (a), (b), (c)
1 is a perspective view showing a series of manufacturing steps of a method for manufacturing a vehicle wiring cable according to a first embodiment of the present invention.

An electric wire 1 comprising a conductive wire 11 and an insulating coating 12
0 is extruded by a mold (not shown) (FIG. 2).
(A)) Then, it is conveyed to the atomizer 40. Sprayer 4
When the electric wire 10 is conveyed to the electric wire 10, the sprayer 40
The adhesive 20 is sprayed on the outer periphery of the insulating coating 12 of FIG.
(B)). Then, the electric wire 10 is conveyed to the sponge sprayer 50. When the electric wire 10 is conveyed to the sponge spray device 50, the sponge spray device 50
(FIG. 2C). As a result, the sound absorbing material 30 is adhered to the outer periphery of the insulating coating 12 in a scattered manner, and the vehicle wiring 1 is completed.

Next, a second embodiment of the method for manufacturing a vehicle wiring cable according to the present invention will be described with reference to FIGS. 3 (a), 3 (b) and 3 (c).
This will be described with reference to FIG. FIG. 3 (a), (b), (c)
It is a perspective view which shows a series of manufacturing process of the manufacturing method of the electric wire for vehicle wiring which concerns on 2nd embodiment of this invention.

First, an apparatus for performing the present manufacturing method will be described. 3 (a), 3 (b) and 3 (c), reference numeral 60 denotes a conveying means, which has a structure in which a plurality of electric wire clips 63 are suspended from an endless belt 61 via wires 62. Also, on the track of the transporting means 60, FIG.
An adhesive layer 70 as shown in FIG. 3B and a sound absorbing material layer 80 as shown in FIG.

In the present manufacturing method using such a manufacturing apparatus, first, as shown in FIG. 3B, the extruded electric wires 10 are sequentially attached to the electric wire clips 63, and the conveying means 60 is driven in one direction. Let it. Then, each electric wire 10
It is conveyed to the adhesive layer 70 and is immersed in the adhesive layer 70.
Thereby, the adhesive 20 adheres to the entire peripheral surface of the insulating coating 12 of each electric wire 10.

Thereafter, each electric wire 10 is conveyed to the sound absorbing material layer 80 by the conveying means 60 and immersed in the sound absorbing material layer 80. As a result, the sound absorbing material 30 adheres to the peripheral surface of the insulating coating 12, and the vehicle wiring 1 is completed.

As described above, according to the above-described vehicle wiring 1 of the present embodiment, the sound absorbing material 30 adhered to the insulating coating 12 of the wire 10 serves as a cushion, and generates noise when the vehicle body vibrates. Can be reliably and effectively prevented.

Further, according to the method of manufacturing the electric cable for vehicle routing according to the first and second embodiments described above, it is possible to automatically and easily attach (adhere) the sound absorbing material 30 to the electric wire 10, It is possible to eliminate the trouble of attaching the sound absorbing means as in the related art, and it is possible to manufacture without using any mold. In particular, in the present manufacturing method, even if the dimensions of the electric wire 10 are changed, the electric wire for vehicle routing 1 can always be manufactured by the same manufacturing apparatus.

[0027]

As described above, according to the vehicle wiring and the method of manufacturing the same according to the present invention, it is possible to eliminate the trouble of mounting the sound absorbing material and to manufacture without using any mold. Therefore, the generation of noise due to the collision with the vehicle body can be easily and effectively prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a vehicle wiring cable according to an embodiment of the present invention.

FIGS. 2A, 2B, and 2C are perspective views showing a series of manufacturing steps of a method for manufacturing a vehicle wiring cable according to a first embodiment of the present invention.

FIGS. 3 (a), 3 (b) and 3 (c) are perspective views showing a series of manufacturing steps of a method for manufacturing a vehicle wiring cable according to a second embodiment of the present invention.

FIG. 4 is a perspective view showing noise absorbing means according to a first conventional example.

FIG. 5 is a side view showing noise absorbing means according to a second conventional example.

FIG. 6 is a perspective view showing a noise absorbing means according to a third conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle wiring 10 Electric wire 11 Conductor 12 Insulating coating 20 Adhesive 30 Sound absorbing material 40 Sprayer 50 Sponge sprayer 60 Conveying means 61 Belt 62 Wire 63 Wire clip 70 Adhesive layer 80 Sound absorbing material layer

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H01B 7/00 301 B60R 16/02 620 H01B 13/00 511

Claims (4)

(57) [Claims] An electric wire routed inside a vehicle, wherein a sound absorbing material made of a granular elastic material is adhered to a peripheral surface of an insulating coating of the electric wire. 2. The electric wire for vehicle wiring according to claim 1, wherein said sound absorbing material is a granular sponge. 3. The method of manufacturing an electric wire for a vehicle according to claim 1, wherein an adhesive is sprayed on a peripheral surface of an insulating coating of the electric wire, and thereafter, the sound absorption is applied to a peripheral surface of the insulating coating. A method for manufacturing a vehicle routing electric wire, characterized by producing the vehicle routing electric wire by spraying a material. 4. The method for manufacturing a vehicle wiring wire according to claim 1, wherein the wire is immersed in an adhesive layer to cause the adhesive to adhere to a peripheral surface of the insulating coating. A method for manufacturing a vehicle routing electric wire, wherein the sound absorbing material is attached to a peripheral surface of the insulating cover by immersing the electric wire in the sound absorbing material layer to produce the vehicle routing electric wire.