JPH09217863A - Fixing structure of wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dissolve a problem on a design and a work by preventing the occurrence of a dead space due to the slack of a wire harness. SOLUTION: A wire harness 1 having from which a plurality of paired electric wires are branched and which has branch harnesses 4 and 5 is inserted from the branch part side through a burring hole 3, which is formed in a car body panel 2. A tongue piece 10 extending along the axial direction of a burring wall 3a is formed at the tip part of the burring wall 3a protruding to the insertion side of the wire harness 1 of the burring hole 3. The protrusion part of a clamp member 12 mounted in the vicinity of the branch part 8 of the wire harness 1 is engaged with an engaging hole 11 formed in the tongue piece 10. The branch part 8 of the wire harness 1 is fixed at the vicinity of the inlet of the burring hole 3. This constitution prevents the occurrence of a dead space to the side A of a car body panel 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness fixing structure showing routing and fixing of a branched portion of a wire harness that penetrates a vehicle body panel.

[0002]

2. Description of the Related Art A conventional fixing means of a wire harness penetrating a vehicle body panel, that is, a so-called branch harness which is divided into a plurality of wires, will be described with reference to FIG. As shown in the figure, a wire harness 1 in which a large number of electric wires are bundled is a metal panel (hereinafter referred to as a vehicle body panel) 2 of a vehicle body (not shown).
The branch harnesses 4 and 5 that are separated into a plurality of wires (two left and right in FIG. 5) by penetrating through the burring holes 3 formed in the vehicle body and the wiring direction are separated by the clamp 6 from the vehicle body. It is fixed to the panel 2.

The wire harness 1 has a burring hole 3
Since the wire harness 1 is inserted into the vehicle body panel 2 from the side of the burring wall 3a, the outer periphery of the wire harness 1 may come into contact with and damage the rising tip of the burring wall 3a. For this reason, a protector 7, which is a harness protection component, is attached to the burring wall 3a.

The branch harnesses 4 and 5 penetrating the burring holes 3 of the vehicle body panel 2 are bent in the wiring direction, but the branch harnesses 4 and 5 are a bundle of a large number of electric wires. Thick and hard, very difficult to bend. For this reason, harnesses that are difficult to bend are bent with a large slack. In addition, branch harnesses 4, 5
Since there is a possibility that the wire harness 1 may be damaged if it comes into contact with other parts, in this case as well, the wire harness 1 is bent with slack.

Some branch boots for harnesses are disclosed in Japanese Utility Model Laid-Open No. 60-66220. What is disclosed in this publication is a diameter-increasing portion for preventing movement of the harness on the outer periphery of a branch boot attached to a bifurcated portion of a harness connected to electric parts arranged inside an automatic transmission. Is formed.

As a protector for a wire harness, there is one disclosed in Japanese Utility Model Laid-Open No. 60-113326. What is disclosed in this publication is to provide a U-shaped protector main body for holding the wire harness and a device holder integral with the protector main body so as to project from the protector main body, and to attach the protector main body to the device holder. The fixing part for fixing to the vehicle body is provided on the upper part on the opposite side.

[0007]

In the prior art described above, when wiring a branch harness, when the harness is thick and hard and difficult to bend, and there is a possibility that the harness may come into contact with other parts. The wire harness was bent with a large slack, but when a more compact harness system path is required, for example, when a high-density space is required in the engine room, etc. Dead space has been a design and work problem.

In this case, the branch portion 8 of the wire harness 1
However, as shown in FIGS. 5 and 6, since it is located on the harness take-out side of the burring hole 3, the reference numeral 9 is given to the space A side.
A dead space 9 as shown by is generated.

The branch boot of the harness disclosed in Japanese Utility Model Laid-Open No. 60-66220 is such that the branch boot to be attached to the bifurcated part of the harness is provided with an enlarged diameter portion on the outer circumference. If you widen the angle of the branch part of the boot, the harness running through the branch boot will follow the branch part, so you can eliminate the slack, but since you need to use the branch boot, there is a problem that the number of parts increases is there.

The wire harness protector disclosed in Japanese Utility Model Laid-Open No. 60-111326 can be attached to a vehicle body panel without causing slack in the wire harness by placing the wire harness on the protector body. However, there is a problem in that the number of parts is increased by attaching the protector for the wire harness.

The present invention has been made to solve the above-mentioned conventional problems, and a branch portion of a wire harness is engaged with and retained in a burring hole of a vehicle body panel, thereby eliminating a dead space due to slack. An object of the present invention is to provide a fixing structure for a wire harness that solves problems in design and work.

[0012]

According to a first aspect of the present invention, a burring hole is formed in a vehicle body panel, the burring hole penetrating a wire harness having a branch portion for branching a plurality of assembled wires from the branch portion. A tongue extending along the axial direction of the burring wall is formed at the tip of the burring wall protruding toward the wire harness insertion side of the hole, and the tongue has a clamp member mounted near the branching portion of the wire harness. It is characterized in that an engaging hole for mating is provided.

According to the first aspect of the present invention, a burring wall having a branch harness is formed through a burring hole formed in a vehicle body panel from the side of the branch harness, and the burring wall projects toward the wire harness insertion side of the burring hole. A clamp member attached near the branch portion of the wire harness is engaged with a tongue provided at the tip of the wire harness to fix the branch portion of the wire harness near the entrance of the burring hole.

The invention according to claim 2 is characterized in that an engaging hole for engaging a clamp member mounted near a branch portion of the wire harness is formed near a tip portion of a burring wall of the burring hole. Is.

In a second aspect of the present invention, a burring wall having a branch portion in a burring hole formed in a vehicle body panel is penetrated from the branch portion side, and the burring wall projects to the front wire harness insertion side of the burring hole. A clamp member attached near the branch is engaged with an engaging hole provided near the tip of the wire harness to fix the branch of the wire harness near the inlet of the burring hole.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention understood from the description of claim 1, as shown in FIG. 1, a vehicle body panel 2 is provided with a wire harness 1 having a branch portion 8 in which a plurality of assembled wires are branched. The burring hole 3 is formed so as to penetrate from the branch portion side. The burring wall 3a is attached to the tip end of the burring wall 3a protruding toward the insertion side of the wire harness 1 of the burring hole 3.
A tongue piece 10 is formed along the axial direction of the wire harness, and a projection 14 of a clamp member 12 mounted near the branch portion 8 of the wire harness 1 is engaged with an engagement hole 11 provided in the tongue piece 10 to form a wire harness. The branch portion 8 of No. 1 is located near the entrance of the burring hole 3.

According to the present invention as understood from claim 2, the wire is formed by forming an engagement hole in the vicinity of the tip of the burring wall of the burring hole with which a clamp member mounted near the branch portion of the wire harness is engaged. The clamp member of the harness is engaged with the engaging hole, and the branch portion of the wire harness is positioned near the entrance of the burring wall.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 and 2 by giving the same reference numerals to the same members as those in FIG. In the drawings, reference numeral 1 indicates a wire harness, and reference numeral 2 indicates a vehicle body panel. A burring hole 3 for penetrating the wire harness 1 is formed in the vehicle body panel 2, and a tongue piece 10 along the axial direction of the burring wall 3a is formed at the tip of the burring wall 3a protruding toward the space B side of the burring hole 3. Is provided.

The tongue piece 10 is connected to the tip of the burring wall 3a by welding or the like. Further, an engaging hole 11 is provided in the center of the tongue piece 10, and a clamping member 12, which will be described later, provided on the wire harness 1 is engaged with the engaging hole 11.

The branch harnesses 4 and 5 of the wire harness 1 pass through the burring holes 3 of the vehicle body panel 2. The branch harnesses 4 and 5 are inserted from the side of the burring wall 3a projecting to the B side of the vehicle body panel 2, and on the space A side,
It is divided into two parts, right and left, wired in appropriate directions, and held by the clamp 6.

A clamp member 12 is attached near the branch portion 8 of the wire harness 1. Clamp member 12
As shown in FIG. 3, the protrusion 14 is formed at the center of the plate member 13.
And is attached to the vicinity of the branch portion 8 of the wire harness 1 with a tape or the like. When the wire harness 1 is passed through the burring hole 3, the clamp member
The protrusion 14 of 12 is engaged with the engagement hole 11 to hold the branch portion 8 near the entrance of the burring hole 3 of the vehicle body panel 2.

Next, the operation of this embodiment will be described. Branch harnesses 4, 5 are provided in the burring holes 3 formed in the vehicle body panel 2.
Through the wire harness 1 having a burring hole 3
Insertion side of the wire harness 1, that is, the body panel 2
The protrusion 14 of the clamp member 12 mounted near the branch portion 8 of the wire harness 1 is fitted into the engaging hole 11 of the tongue piece 10 provided at the tip of the burring wall 3a protruding toward the B side of The portion 8 is fixed near the entrance on the insertion side of the burring hole 3.

As a result, it becomes possible to gradually bend the branch harnesses 4 and 5 which are divided into two from the branch portion 8 from the vicinity of the inlet of the burring wall 3 to the outlet side of the wire harness 1 of the burring hole 3. Thus, the wire harness 1 can be fixed to the vehicle body panel 2 without making any slack.

In this embodiment, the tongue piece 10 at the tip of the burring wall 3a is provided with the engagement hole 11 with which the protrusion 14 of the clamp member 12 mounted near the branch portion 8 of the wire harness 1 is engaged. However, instead of this, the engagement hole 11 may be provided in the burring wall 3a of the burring hole 3. Since the operation in this case is substantially the same as the above, the description thereof will be omitted.

[0025]

According to the invention of claim 1 and the invention of claim 2, a plurality of wire harnesses separated from the branch portion are provided at the tip of the burring wall, that is, near the entrance of the burring hole. The wire harness can be gradually bent to the outlet side, and the wire harness can be fixed to the panel without making a slack relatively.

Therefore, even when the wire harness is difficult to bend and the slack is required, the wire harness can be relatively smoothly bent, and the dead space due to the slack can be reduced. As a result, the engine room and the like can be designed compactly.

Further, since the wire harness can be handled relatively freely if the clamp member is retained in the burring hole, the wire harness can be attached more easily than in the past and the workability can be improved.

Further, conventionally, in the penetration portion, the wire harness hits the edge portion of the burring wall of the burring hole,
Harness protection parts such as protectors were used because there was a possibility of damage, but if the clamp member provided in the branch portion is locked in the engagement hole as in the present invention, the wire harness will not be damaged. Since it is fixed near the entrance, harness protection parts are not required and cost can be reduced.

[Brief description of drawings]

FIG. 1 is a partially sectional front view showing an embodiment of the present invention.

2 is an enlarged perspective view of the tongue piece of FIG. 1. FIG.

FIG. 3 is a front view showing a clamp member attached to the wire harness of FIG. 1 and an engagement hole formed in a tongue piece.

FIG. 4 is a schematic view showing an arrangement state of the wire harness of FIG.

FIG. 5 is a partial cross-sectional front view showing an arrangement state of a conventional wire harness.

FIG. 6 is a schematic diagram showing an arrangement state of the wire harness of FIG.

[Explanation of symbols]

 1 wire harness 2 vehicle body panel 3 burring hole 3a burring wall 8 branch 10 tongue piece 11 engaging hole 12 clamp member 14 protrusion

Claims (2)

[Claims] 1. A burring hole is formed in a vehicle body panel, the burring hole penetrating a wire harness having a branching part for branching a plurality of assembled wires from the branching part, and the burring protruding to the wire harness insertion side of the burring hole. A tongue piece is formed at the tip of the wall along the axial direction of the burring wall, and an engaging hole for engaging a clamp member mounted near the branch portion of the wire harness is provided in the tongue piece. Fixed structure for wire harness. 2. The wire harness according to claim 1, wherein an engaging hole for engaging a clamp member mounted near a branch portion of the wire harness is formed near a tip end portion of a burring wall of the burring hole. Fixed structure.