JPH08106832A - Grommet for wire harness - Google Patents

Abstract

PURPOSE: To improve workability in fixing a wire harness and stabilize arrangement attitude by holdingly fixing a wire harness, which penetrates into an insertion hole, in a prescribed bending arrangement attitude, after fixedly attaching an insertion tube part to a partition hole. CONSTITUTION: A lock column 7 is installed in a position opposed to a bending attitude insertion tube part 3 and a winding band 5 extending in the lateral direction of the lock column is integrally extended in one side of its tip part. After a grommet 1 for a wire harness mounted on a wire harness 10 is fixedly attached to a penetration hole 12 of a partition board 11, the wire harness 10 projecting from the insertion tube part 3 is bent by setting the bending start point as the bellows part 8. The winding band 5 is wound around the wire harness 10 including the tip part of the insertion tube part 3 closed and opposed to the lock column 7 so that a band lock hole 6, which is arbitrarily selected is engaged with the lock projection 9. The wire harness 10 is thus arranged and held in a prescribed attitude to the partition board 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 penetrating arrangement for mounting a wire harness on a partition plate of a vehicle body or the like, mounting the wire harness on the partition plate and fixing the wire harness. The present invention relates to a grommet for a wire harness that is used to maintain a posture and to hold it, and to waterproof the penetrating part. Specifically, the wire harness that penetrates the partition plate is parallel or inclined with respect to the partition plate. The present invention relates to a wire harness grommet for bending and arranging and holding it in a posture.

[0002]

2. Description of the Related Art A wire harness grommet is a large-diameter ring body around which a peripheral fitting groove for fitting around a through hole of a partition plate of a vehicle body or the like is provided, and a wire harness is loosely inserted into an internal hollow portion. Of the partition plate attaching part and a small diameter insertion tube part projecting on one side of the partition plate attaching part and through which the wire harness is inserted in a waterproof manner are integrally connected, and the partition plate attaching part and The insertion tube portion has a basic structure of a rubber elastic body arranged on a common center line.

In order to attach and fix to a partition plate of a vehicle body or the like, the wire harness grommet attached to the wire harness is extruded in advance to the back side of the through hole to be attached, and then the insertion tube portion side is penetrated. By pulling out to the front side of the hole, the peripheral edge fitting groove of the partition plate mounting part and the through hole peripheral edge are engaged and fixed, and in the case of the above-mentioned bending arrangement, after the fixing and fixing, A work procedure and a method for setting a desired bending arrangement posture by a known bending arrangement means which will be described in detail are adopted.

That is, the publicly known example is the actual Kaihei 3-2081.
As shown in Japanese Patent Publication No. 8 (see FIG. 2A),
The partition plate attachment portion 2 of the wire harness grommet 1 mounted on the wire harness 10 is attached to the partition plate 1 by the above-described method.
1 is attached and fixed to the through hole 12 and the insertion tube portion 3 having a straight shape with the partition plate attachment portion 2 is bent to stand upright on the partition plate attachment portion 2 as shown by the dotted line. A method of a tape winding set in which the locking rod portion 14 is fixed by a tape winding 15 and is held in a desired bending arrangement posture, as shown in Japanese Utility Model Laid-Open No. Sho 64-21925 (see FIG. )), The same is attached and fixed to the through hole 12, and the insertion tube portion 3 having a straight shape is bent to form the insertion tube portion 3
There is a locking arm that locks the locking arm 16 provided on the side of the locking projection 17 and holds it in a desired bending posture.

[0005]

Among the above-mentioned conventional techniques, the former tape winding set is one in which the tape winding 1 is performed in a narrow space of the partition plate 11 in which the wire harness 10 is arranged.
Since the work of No. 5 is required, it is difficult to fix the tape winding, and the workability of arranging the wire harness is hindered, and sometimes the tape winding is not properly formed, and the bending arrangement posture of the wire harness 10 is collapsed. There is a problem in quality that occurs, and further, the winding margin of the tape winding 15 is set in the insertion tube portion 3.
Since the insertion tube part 3 is lengthened and the grommet 1 is enlarged, it is difficult to insert the wire harness 10 into the insertion tube part 3 forcibly inserted to make it waterproof. Become, grommet for wire harness 1
However, there is a problem that the workability of attaching the wire harness to the wire harness is reduced.

On the other hand, the latter has a structure in which the engaging arm 16 and the like are present in the insertion tube portion 3, so that the insertion tube portion 3 is also lengthened, the grommet 1 is enlarged, and the wire harness 10 is attached. The workability of mounting is deteriorated, and the locking arm 16 and the locking projection 17 on the side of the insertion tube portion 3 in the bent posture are locked in a narrow space, which is difficult to perform. Since only one side portion of the portion 3 is locked, it is difficult to hold the insertion tube portion 3 having elastic restoring force, the bending posture becomes unstable, and the holding pipe receives a strong holding stress including torsion. There is a possibility that the arm 16 may be damaged or damaged, and the bent posture of the wire harness may be lost.

The present invention provides a wire harness grommet for bending and arranging which solves the above-mentioned problems of the prior art.

[0008]

The grommet for a wire harness of the present invention, which solves the above technical problems, is "a large-diameter ring-shaped partition plate attachment portion that is attached and fixed to a through hole of a partition plate of a vehicle body / device. On one side, in the wire harness grommet in which a small-diameter insertion tube portion for inserting the wire harness in a waterproof manner is continuously provided,
The latter half of the insertion tube portion is formed into a bendable bellows portion, and the partition plate attachment portion is erected at a position facing the insertion tube portion in the bending posture, and the insertion tube portion / wire is provided. A structure is provided in which a locking column having a winding band around the harness is erected, and the bending posture of the insertion tube portion is held and set by the winding locking of the winding band.

[0009]

The grommet for a wire harness of the present invention having the above-described structure is mounted on a wire harness, fixedly attached to a through hole of a partition plate of a vehicle body or the like, and then bent through the insertion pipe portion. A wire which is easily bent in a bent posture and in which the bending band of the insertion tube portion is locked by winding and locking the wrapping band in the bent posture, and the wire is disposed through the partition plate through hole. The harness can be held in the required bending posture.

To lock the bending posture, the winding band of the locking column, which is opposed to and close to the insertion pipe portion in the bending posture, is wound around the insertion pipe portion or the wire harness protruding from the insertion pipe portion. Since it can be locked only by itself, if the locking means of the wrapping band is set to an appropriate one, it can be locked very simply and accurately. The elastic reaction force between the insertion tube portion and the partition plate attachment portion caused by the bending posture is carried by the two-point simple pulling of the winding reciprocating portion of the winding band that is wound and locked between the two. The locking posture is mechanically extremely stable, and there is little possibility that the locking is loosened / disengaged due to vibration or the like when the vehicle body is traveling, and the bending arrangement posture of the wire harness is stable.

Since the winding position of the winding band may be a wire harness protruding from the insertion tube portion, there is no unnecessary lengthening of the insertion tube portion, and good work of the wire harness to the insertion tube portion is possible. You can secure the sex.

[0012]

Embodiments will be described in detail below based on embodiments. First, referring to FIG. 1 showing an embodiment of the present invention, a peripheral edge fitting groove 4 which is fitted to the peripheral edge of a through hole 12 of a partition plate 11 of a vehicle body.
With a large-diameter ring-shaped partition plate attachment portion 2 provided around the outer periphery, and a small-diameter insertion tube portion 3 protruding from one side of the partition plate attachment portion 2 for inserting the wire harness 10 in a waterproof manner. In the wire harness grommet 1 in which the centers of the partition plate attachment portion 2 and the insertion tube portion 3 are on the common center line 14, the latter half of the insertion tube portion 3 (the partition plate attachment The portion closer to the portion 2) is formed into an elastically bendable bellows portion 8, and a locking column 7 integrally provided with a wrapping band 5 is provided upright on the outer periphery of the partition plate attachment portion 2. .

That is, the locking column 7 is erected at a position facing the insertion tube section 3 in the bending posture, and one end of the locking column 7 is
The wrapping band 5 extending in the lateral direction of the locking column 7 is integrally extended, and a plurality of band locking holes 6 are arranged in the lengthwise direction of the wrapping band 5. On the other side of the tip portion, a locking projection 9 with a bulge head 13 for receiving the band locking hole 6 and locking the band locking hole 6 is provided. The band locking hole 6 and the locking projection 9 are wrapped around the band 5. It constitutes a band locking mechanism.

The wire harness grommet 1 mounted on the wire harness 10 is attached to the through hole 12 of the partition plate 11.
After being attached and fixed to the wire harness 10, the wire harness 10 protruding from the insertion tube portion 3 is bent with the bellows portion 8 as a bending start point to form the wire harness 10 including the distal end portion of the insertion tube portion 3 that closely faces the locking column 7. By winding the wrapping band 5 and engaging the arbitrarily selected band locking hole 6 with the locking projection 9, the wire harness 10 is arranged and held in a required bending posture with respect to the partition plate 11. It is supposed to do.

The above-described embodiment of FIG. 1 has the above-mentioned function, and the wire harness 10 which is closely opposed to the locking column 7 is provided.
The winding band 5 may be wound around the insertion tube portion 3 so that the locking holes 6 and the locking projections 9 are engaged with the "pachin", so that even in a narrow wire harness arranging space, accurate locking can be achieved with one touch. it can. Further, the insertion tube portion 3 is not lengthened, and the workability of inserting the wire harness 10 into the insertion tube portion 3 is not deteriorated. Further, in this embodiment, since there are many locking holes 6, it is possible to select the band effective length of the wrapping band 5 in multiple stages and set the bending angle of the wire harness 10 in various ways.

The wire harness grommet 1 of the present invention is not limited to the above-mentioned embodiment, and for example, the locking hole 6
There is a change such that the number is singular, or, although not shown, a band hook provided at the tip of the winding band 5 is used as a band locking means for locking the locking column 9 to the locking column 9.

[0017]

As described above, the wire harness grommet of the present invention is attached and fixed to the through hole of the partition plate of the vehicle body or the like, and the insertion tube portion is set in a bent posture, so that the wire penetrating the partition plate. In the one that holds the harness in a bent posture,
It is easy and accurate to set the bending posture, and secures good workability of inserting the wire harness into the insertion tube, and the workability of penetrating and bending the wire harness into the partition plate. And an effect of stabilizing the bending arrangement posture.

[Brief description of drawings]

FIG. 1 shows a grommet for a wire harness according to an embodiment of the present invention, (A) is a front view thereof, (B) is a side view thereof,
(C) is a front view for explaining the usage method and usage state

FIG. 2 shows a conventional wire harness grommet,
Front view of both (A) and (B)

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wire harness grommet 2 Separation plate attachment part 3 Insertion tube part 4 Perimeter fitting part 5 Wrapping band 6 Locking hole 7 Locking column 8 Bellows part 9 Locking protrusion 10 Wire harness 11 Separation plate 12 Through hole 13 Expansion Appearance 14 center line

Claims (2)

[Claims] 1. A small-diameter insertion pipe portion for waterproofly inserting a wire harness is provided on one side of a partition plate attachment portion of a large-diameter ring body that is attached and fixed to a through hole of a partition plate of a vehicle body / device. In the wire harness grommet, the latter half of the insertion tube portion,
A member having a bendable bellows part, which is erected on the partition plate attachment part at a position facing the insertion tube part in the bending posture and which has a band for wrapping around the insertion tube part / wire harness. A grommet for a wire harness having a structure in which a stop column is erected and a bending posture of the insertion tube portion is held and set by winding and locking the winding band. 2. A band locking means comprising a locking projection provided on a locking column and a locking hole for a winding band.
Grommet for wire harness.