JPS5924096Y2 - grommet - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grommet used in the wiring of a wire harness in an automobile to protect the electric wire at the part inserted through the panel hole and to perform a dustproof, waterproof, etc. sealing function.

Conventional grommets are made of a relatively soft rubber material, and one side of the through hole is made into a small diameter cylindrical part so as to be in close contact with the electric wire, and the other side is provided with a mounting collar part having an annular groove on the outer periphery of the large diameter opening. Although it was fixed to the hole in the panel through the annular groove, it had the disadvantage that the installation work was time-consuming.

The present invention focuses on the above-mentioned points, and provides a grommet with a new structure that is made of a relatively hard synthetic resin material and can be fixed by a simple installation operation of pushing it into a panel hole. It is.

An embodiment of the present invention will be described below with reference to the drawings.
A is the grommet body, B is a corrugated tube that covers the electric wire, and the grommet body A is integrally molded in half from a synthetic resin material such as polypropylene, and the corrugated tube B is made of a synthetic resin material such as hard PVC. It is molded to have a split.

The grommet body A has an abutting flange 1 for the panel hole in the middle, and the abutting flange 1 is configured to be separable by a hinge 1a.

Four flexible divided pieces 3 extending in the axial direction are provided on one side of the abutment flange 1 through slits 2, and each flexible divided piece 3 has a contact portion with a panel hole in sequence toward its free end. 3a, a tapered guide portion 3b, a rising portion 3C, and a holding portion 3d.

A locking protrusion 4 is formed on the abutting portion 3a with a gap of a panel C between it and the abutting collar portion 1.

On the other side of the abutting collar portion 1, a divided holding cylinder portion 6 is attached via a connecting wall 5.
The divided holding cylinder portion 6 is provided with a locking piece 6a and a locking protrusion 6b on the outside, and an annular locking protrusion 6C on the inside.

Reference numeral 1b denotes a regulating protrusion provided on one side of the divided abutment flange 1 so as to engage the groove IC on the other side.

In the above structure, when in use, a corrugated tube B serving as a wire protector is placed over the outer periphery of the electric wire through the split 7, and then the grommet body is closed and covered over the corrugated tube B from the divided state, and one side is is locked by engaging the locking piece 6a and the locking projection 6b while engaging the locking protrusion 6C of the holding cylinder part 6 into the annular groove 8 of the corrugated tube B, and on the other side, the tape is inserted through the holding part 3d. Secure with winding D.

From this state, when the grommet body together with the electric wire is press-fitted into the mounting hole 9 of the panel through the tapered guide part 3b, the flexible divided piece 3 is flexibly deformed inward especially through the rising part 3C and engaged. When the locking projection 4 passes over the edge of the panel hole and the abutment flange 2 abuts against the panel, the locking projection 4 is restored and fixed.

Since the grommet of the present invention is constructed as described above, it can be quickly fixed to the panel hole by a simple pressing operation, and since it is used together with a wire protector such as a corrugated tube, it can sufficiently achieve dust-proofing and other blocking effects. It has the feature of being able to

[Brief explanation of drawings]

FIG. 1 is a perspective view of the grommet according to the present invention in use;
FIG. 2 is a sectional view taken along the line II--II of the same, and FIG. 3 is a developed plan view of the grommet main body. 2...Slit, 3a...Abutting part for panel hole, 3b...Guiding part, 3d, 6...
...Holding part.

Claims (1)

[Scope of utility model registration request] The entire body is integrally formed of a synthetic resin material, and one side of the abutment collar that can be divided by a hinge is provided with a plurality of flexible segments extending in the axial direction, with each flexible segment facing toward the free end. It has an abutting part for the panel hole, a tapered guide part, and a holding part for the electric wire in sequence, and a holding cylinder part for the electric wire is separately provided on the other side of the abutting flange via a connecting wall, and the divided part A grommet comprising a locking member provided oppositely to the grommet.