JP2576023Y2 - Grommet - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grommet for waterproofing and soundproofing which is inserted into a wire harness to penetrate a through hole provided with a panel which separates the interior and the exterior of an automobile, for example.

[0002]

2. Description of the Related Art FIG. 1 shows a conventional grommet structure of this kind. In other words, reference numeral 1 denotes a partition wall that separates the interior of the automobile from the engine room, and the partition wall 1 has a through hole 3 through which a wire harness 2 is passed.
Are formed. The wire harness 2 passing through the through hole 3 is provided with an elastic grommet 4 formed in advance.
Is inserted into the annular groove 5 formed in the peripheral edge of the grommet 4 so that the edge of the through hole 3 is fitted.
The gap formed between the through hole 3 and the grommet 4 is closed by the grommet 4 so as to maintain waterproofness, soundproofing and fixing of the wire harness 2 between the through hole 3 and the wire harness 2.

[0003]

However, in the conventional grommet structure, the material is made of an elastic body such as rubber, and the diameter of the annular groove is set to be slightly larger than the inner diameter of the through hole 3. When the grommet 4 is fitted into the through-hole 3, the grommet 4 is deformed to apply a large amount of human power while being inserted, and when the grommet 4 is removed from the through-hole 3, the same large amount of human power is required. Since the grommet 4 needs to be added, there is a problem that the work of attaching and detaching the grommet 4 takes a great deal of time and the workability is poor.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a grommet body for inserting and holding a wire harness, and a clip member for abutting and locking the grommet body to a side wall of a partition. With
It is an object of the present invention to provide a grommet which can very easily and surely fix a grommet body through which a wire harness is inserted to a fixed body such as a partition wall by using the clip member.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings.

In FIG. 2 , reference numeral 11 denotes a substantially crown-shaped grommet body having a through hole 13 for inserting a wire harness 12 at a central portion.
An annular ridge 14 is formed on the inner peripheral surface of the opening edge portion. As shown in FIG. 3, the cross-sectional shape of the ridge 14 is such that an inner side surface 15 of the ridge 14 is formed as an inclined surface that is inclined in the opening direction toward the center of the grommet body 11. A lip portion 17 having flexible elasticity is formed on the opening surface 16 of the grommet main body 11.

Reference numeral 18 denotes a clip member which is formed in a substantially C-shape and has a flexible elasticity which can be bent in a direction to reduce the diameter thereof. A peripheral groove 19 into which the ridge 14 is fitted, and a peripheral groove 22 to be fitted into a hole edge of a through hole 21 provided in a partition wall 20 for partitioning the vehicle compartment from the engine room are formed. The side wall 23 of the peripheral groove 19 is formed on an inclined surface that matches the inclined surface of the inner side surface 15 of the ridge 14. Numerals 24 are knobs formed on both ends of the clip member 18 so as to protrude laterally. If the knob members 24 are pinched to bring the both ends of the clip member 18 closer to each other, as shown in FIGS. The outer diameter of 18 can be reduced.

The operation of the present embodiment has been described above. Next, in order to fix the grommet body 11 with the wire harness 12 inserted thereinto to the partition wall 20, the grommet body 11 must first be attached to the partition wall 20. Apply to the side surface, and then, from the other side of the partition wall 20, use the two knob pieces 2.
As shown in FIG. 6, the clip member 18 having a smaller outer diameter is pinched to the through hole 21 of the partition wall 20 and the grommet body 1.
1 inside. That is, the clip member 1
The rear knob piece 24 is positioned so that the ridge 14 is fitted into the groove 19 of the eighth member 8 and the edge of the through hole 21 provided in the partition wall 20 is fitted into the groove 22 of the clip member 18. When the pinching force is released, the clip member 18 is moved to the position shown in FIG.
As a result, the ridge 14 and the rim of the partition wall are fitted into the respective grooves 19 and 22, and the clip member 18
The grommet main body 11 and the partition are connected via the. Also, due to the restoring force of the clip member 18, the inclined side wall 23 of the clip member comes into contact with the inclined inner surface 15 of the grommet main body 11, and the opening surface 1 of the grommet main body 11 is contacted.
Since the function of pressing the rib 6 toward the partition wall 20 acts, the surface of the partition wall 20 and the lip portion 17 of the grommet body 11 are pressed against each other, and as a result, the waterproofness of the grommet body 11 is enhanced.

As described above, according to the present embodiment, the grommet main body 11 can be fixed to the partition wall 20 in a water-tight manner by using the clip member 18, and the clip member 18 can be connected to the grommet main body 11 with one touch. Since the partition wall 20 can be locked, the grommet body 11 can be quickly and reliably attached to the fixed body, and the grommet body 11 similarly attached to the fixed body can be removed by the clip member. , The grommet body for inserting and holding the wire harness is very easy to attach and detach, and workability is greatly improved.

[0010]

As described above, the present invention is directed to a grommet located between a through hole 21 formed in a partition wall 20 and a wire harness 12 penetrating through the through hole 21. has a wire harness insertion hole 13 in the central portion, the groove 19 and the grommet body 11 made by forming a ridge 14 on the inner peripheral edge of the opening, which the ridges 14 on the outer peripheral surface is fitted
And a groove 22 into which the edge of the through hole 21 is fitted is formed;
Knob pieces 24 are provided at both ends for elasticity in the direction of diameter reduction
And a flexible clip member 18 formed in a substantially C-shape which can be deformed, the inner surface 15 of the protrusion 14 is the Gurome'
Inclined toward the opening direction toward the center of the main body 11
Surface of the groove 19, into which the ridge 14 fits.
The side wall 23 coincides with the inclined surface of the inner side surface 15 of the ridge 14.
Is formed, and the opening of the grommet body is further formed.
The side surface 16 has flexibility, and is provided on the wall surface of the partition wall 20.
Since the grommet is formed by forming the lip portion 17 of the annular ridge to be brought into contact with the grommet, the grip member 24 of the clip member 18 is pinched and displaced. /> the Rome' DOO body 11 state, and are not capable allowed to lock in one-touch operation to the partition wall 20, is made quickly and reliably mounting operation to the partition wall 20 of the grommet body 11,
Grommet body 11 similarly attached to bulkhead
Can be removed by a one-touch operation of the clip member, so that the attaching and detaching operation of the grommet main body for inserting and holding the wire harness is extremely easy, and the workability is greatly improved. Furthermore, installation work
In the case where the clip member 18 is restored,
The inclined side wall 23 of the member and the inclined side of the grommet body
The side surface 15 comes into sliding contact with the opening surface 16 of the grommet body.
Since the action of pressing in the direction of the wall 20 works, the wall surface of the partition 20
And the lip portion 17 of the grommet body are pressed against and adhered to each other.
Water effect is enhanced.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a conventional example.

FIG. 2 is a structural explanatory view of the embodiment of the present invention.

FIG. 3 is an enlarged sectional view of a main part of the embodiment of the present invention.

FIG. 4 is a perspective view of the clip member according to the embodiment of the present invention.

FIG. 5 is an operation explanatory view of the clip member of the embodiment of the present invention.

FIG. 6 is a diagram illustrating the operation of the clip member according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 ... Grommet main body 12 ... Wire harness 13 ... Insertion hole 14 ... Protrusion 15 ... Inner surface 16 ... Opening surface 17 ... Lip part 18 ... Clip member 19 ... Peripheral groove 20 ... Partition wall 21 ... Through hole 22 ... Peripheral groove 23 ... Side wall 24 ... Knob piece

Claims (1)

(57) [Scope of request for utility model registration] 1. A through hole (21) formed in a partition (20).
And a wire harness (1) penetrating through the through hole (21).
A grommet which is located between the 2), said grommet has a wire harness insertion hole (13) in the central portion, by forming a protrusion (14) on the inner peripheral edge of the opening grommet a body (11), an outer peripheral surface to the ridge (14) is fitted to the groove (19) and the through hole (21) hole edge is fitted groove (22) is formed of and both ends of the knob piece (24 )But
A flexible C-shaped member (18), which is provided in a substantially C-shape and is elastically deformable in a direction of reducing the diameter.
The inner surface (15) of the ridge (14) is attached to the grommet body (1).
1) Formed on an inclined surface that slopes toward the opening toward the center
And the groove (19) into which the ridge (14) fits.
On the side wall (23) of the ridge (14)
An inclined surface corresponding to the inclined surface of
The opening side surface (16) of the unit has flexibility and
A lip portion of an annular ridge that is pressed against the wall surface of the partition wall (20)
A grommet formed by (17) .