JPH0923543A - Locking structure of clamp for wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain the recycle use of a wire harness by facilitating the removal work of a wire harness in its locking condition. SOLUTION: A lock head 6 is erected capably of forced elastic rotation through the supporting shaft 7 of an elastic rotary shaft, and also a rotating operation piece 8 for forced elastic rotation is projected at the base of a lock pole 3, and further a lock hole 11 is made into an oblong lock hole 11 whose small diameter is equal to the lock span S between a pair of stepped lock parts 5, and the lock head 6 in free condition is locked to the brim 12 of the small diameter of the oblong lock hole 11, whereby a clamp 1 for a wire harness is locked to the car body 15. This has such structure that the lock head 5 being rotated about 90 deg. by the operation of the rotating operation piece 8 can be pulled out freely from the oblong lock hole 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness clamp locking structure in which a wire harness clamp attached to a wire harness is locked to a vehicle body / apparatus and the wire harness is arranged and held in a fixed posture. It is about.

[0002]

2. Description of the Related Art An engaging structure of a wire harness clamp (see FIG. 3) is constructed such that an engaging leg 3 projecting from an attaching portion 2 to a wire harness 13 is extended downward from an upper end of the engaging pillar 3 to form a lower end. Has a locking head 6 composed of a pair of cantilevered elastic locking pieces 4 and the like having a step locking portion 5, and the locking head 6 is fitted into a locking hole 11 of a circular hole of a vehicle body 15. Then, by engaging the pair of locking portions of the step locking portion 5 existing on the left and right sides of the locking head 6 with the locking holes 11, the locking head 6 is prevented from coming off and the vehicle body 15 is secured. It has a structure that locks.

[0003]

Although the above-described conventional wire harness clamp locking structure allows the wire harness 13 to be locked to the vehicle body / apparatus in a one-touch operation, the wire harness 13 must be maintained or recycled for use. However, it becomes extremely difficult to release the fitting lock. That is, by the elastic leg opening force of the elastic locking piece 4, the vehicle body / device 1
The locking head 6 fitted and locked in the locking hole 11 of the wire 5 cannot be smoothly pulled out from the locking hole 11 unless the open leg posture of the elastic locking piece 4 is forcibly reduced. When it becomes necessary to remove the harness 13 from the vehicle body / device 15, for example, a strong pulling force of 10 kgf or the like is applied to the wire harness 13 existing in the narrow space, and the locking column 3 must be broken. This is a difficult task, and the workability of releasing and locking the wire harness 13 is extremely poor.

On the other hand, although the wire harness system of an automobile is thrown away along with the vehicle body, it is disposable.
Since the wire harness system is often made of synthetic resin, there is a problem in industrial pollution due to its disposal.
Furthermore, in recent years, from the viewpoint of effective use of resources, there is a strong tendency toward the recycling use of wire harness systems, and technical development for such recycling use is required in the field.

The present invention solves the above-mentioned drawbacks of the prior art and provides a locking structure for a wire harness clamp that meets the technical requirements of the field.

[0006]

SUMMARY OF THE INVENTION The wire harness clamp locking structure of the present invention which solves the above technical problems is described as follows. In the locking structure of the wire harness clamp that locks the disposition posture of the wire harness by engaging with the locking hole, the locking head can be forcibly elastically rotated about the vertical axis of the locking head. An ellipse having a rotation operating piece for forced elastic rotation below the locking head, and the locking hole has a small locking span between the pair of locking portions. It has a structure in which it is formed in a locking hole so that the locking head in the forced rotation posture can be pulled out from the oval locking hole.

That is, in the wire harness clamp locking structure of the present invention, the free-position locking head is fitted into the oval locking hole on the vehicle body / device side, and the pair of locking heads are engaged. The stopper head is locked to the small-diameter edge of the oval locking hole to lock the wire harness arranging posture, and the locking head is forcibly elastically rotated by operating the rotation operation piece. The feature is that the wire harness can be pulled out from the oval locking hole and the locking posture of the wire harness can be disengaged.

In the structure in which the locking head is forcibly elastically rotated and can be pulled out from the oval locking hole, the locking head is erected on an elastic rotation shaft erected on the attachment portion to the wire harness. At the same time, there is a mode in which the front and rear width of the locking head is made smaller than the locking span, and the locking head having the locking span in the major axis direction of the elliptical locking hole can be pulled out as it is by the elastic rotation. Adopted.

[0009]

The wire harness clamp locking structure according to the present invention having the above-described structure allows the turning operation piece to move when the locking head of the wire harness clamp is locked in the locking holes of the vehicle body / device. When the rotating operation is performed, the locked state is disengaged, and the disposition locking of the wire harness becomes loose, and the wire harness can be easily removed from the vehicle body / device. The locking head of the wire harness clamp removed by the operation elastically returns to the original posture in the free state, so that the clamp function and the wire harness function are not impaired, and the removed wire harness is good. It can be recycled for use while retaining its performance.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description will be given based on embodiments. First, referring to FIG. 1 showing the first embodiment of the present invention, a rectangular plate mounting portion 2 fixed to the outer periphery of a wire harness 13 by a tape winding 14 is provided with an open leg shape from the upper end of a locking column 3 in the left-right direction. A locking head 6 composed of a pair of left and right elastic locking pieces 4 having a step locking portion 5 at the lower end is fitted into a locking hole 11 of the vehicle body 15 by the step locking portion 5 In the locking structure of the wire harness clamp 1 that locks and prevents coming off,
The locking head 6 is erected on a supporting portion 7 of an elastically rotatable shaft erected on the mounting portion 2, and a plate-shaped member extending in the left-right direction of the locking head 6 is provided on the base of the locking column 3. When the turning operation piece 8 is forcibly turned by a fingertip or a tool, the locking head 6 elastically rotates up to about 90 ° about the locking head longitudinal axis 9. When the turning operation piece 8 is in a free state, the locking head 6 is elastically restored to the original position of the free posture by the elastic restoring force of the support shaft 7.

Further, the locking head 6 has a pair of locking portions formed by the step locking portion 5 of the elastic locking piece 4 and a locking hole 11 of the vehicle body 15.
The front and rear width B of the locking head is set to be smaller than the locking span S that locks on the edge portion of the locking hole S, and the locking hole 11 is formed in the elliptical locking hole 11 having the locking span S as a small diameter D. ing.

When the locking head 6 in the free state is fitted into the oval locking hole 11 (see FIG. 1B), the elastic locking piece 4 is inserted.
The step locking portion 5 of the above is engaged with the small-diameter edge portion 12 of the oval locking hole 11 with a "snap", the locking head 6 is locked to prevent the wire harness 13 from being disposed on the vehicle body 15. Is locked. Then, (see (C) of FIG. 1), when the rotation operation piece 8 of the locked state is rotated, the locking head 6 elastically rotates to engage the step locking portion 5 and the small-diameter edge portion 12. In addition to the looseness, the front and rear direction of the locking head 6 becomes the major axis direction of the oval locking hole 11 so that the locking head 6 can be pulled out as it is.

The above-described embodiment shown in FIG. 1 has the above-described operation, and the wire harness 13 disposed and locked on the vehicle body 15 can be easily removed from the vehicle body 15.
The maintenance workability of No. 3 is improved, and the wire harness can be recycled.

The locking structure of the wire harness clamp of the present invention is not limited to the above-described embodiment, but the locking head 6 may be formed into another known shape of the bulging head structure illustrated in FIG. There are changes such as changing the shape of the piece 8.

[0015]

As described above, in the wire harness clamp locking structure of the present invention, the wire harness in the installed and locked state can be easily disengaged, and the maintainability of the wire harness is improved. The wire harness can be used for recycling, meets the technical requirements of the field, and has various effects of preventing industrial waste pollution by recycling the wire harness.

[Brief description of drawings]

1A and 1B show a locking structure of a wire harness clamp according to a first embodiment of the present invention, in which FIG. 1A is a perspective view thereof, FIG. 1B is a side view of the locked state, and FIG. Top view showing

FIG. 2 is a side view of a locking head of a wire harness clamp locking structure according to another embodiment of the present invention.

3A and 3B show a locking structure of a conventional wire harness clamp, in which FIG. 3A is a perspective view thereof, and FIG.

[Explanation of symbols]

 1 Wire Harness Clamp 2 Mounting Part 3 Locking Column 4 Elastic Locking Piece 5 Step Locking Part 6 Locking Head 7 Bearing Shaft 8 Rotating Operating Piece 9 Vertical Center of Locking Head 11 Locking Hole 12 Small Diameter Edge 13 wire harness 14 tape winding 15 vehicle body S locking span D small diameter

Claims (2)

[Claims] 1. A wire harness clamp in which a pair of left and right locking portions of a locking head of a wire harness clamp are engaged with locking holes of a vehicle body / device to lock the disposition posture of the wire harness. In the locking structure, the locking head is configured to be forcibly elastically rotatable about a vertical axis of the locking head, and a rotation operation piece for the forcibly elastic rotation is provided below the locking head. Further, the locking hole is formed as an oval locking hole having a locking span between the pair of locking portions of a small diameter, and the locking head in the forced rotation posture is removed from the oval locking hole. Clamping structure for a wire harness clamp characterized by a structure that can be pulled out. 2. An engaging head is erected on a bearing shaft of an elastic turning shaft provided in an attaching part to a wire harness, and the engaging head is formed from an engaging part span in the left-right direction of the engaging head. The locking structure for the wire harness clamp according to claim 1, wherein the front-rear width of the wire is set to be small.