# US 2021/0241944 A1 · Grommet and wire harness

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- Number: US 2021/0241944 A1
- Document ID: US20210241944A1
- Status: Published application
- Kind: A1
- Application number: 17/164,471
- Filed: 2021-02-01
- Published: 2021-08-05
- Earliest claimed: 2020-02-03
- Assignees: Yazaki Corporation; Toyota Jidosha Kabushiki Kaisha
- Applicants: Yazaki Corporation; Toyota Jidosha Kabushiki Kaisha
- Inventors: Masaki Yamaguchi; Ryohei Toyoda; Tomoyoshi Katayama
- Web page: https://patentgrep.com/patent/US20210241944A1

## CPC

- H01B 17/583: {Grommets; Bushings}
- H01B 7/0045: {Cable-harnesses}
- H01B 17/301: {Sealing of insulators to support}
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})

## Abstract

A grommet includes a water stop part having an annular shape that stops water by being inserted into a through hole formed on a mounting panel, and a first partition wall part or a second partition wall part disposed so as to close the annular shape of the water stop part by extending in a radially inner side of the water stop part. The water stop part includes an abutting surface formed in an annular shape capable of coming into contact with one side of a peripheral part of the through hole in an axial direction, and a plurality of claw parts that face the abutting surface in the axial direction, that are capable of coming into contact with another side of the peripheral part of the through hole, and that are intermittently provided in a circumferential direction.

## Claims

### Claim 1

A grommet, comprising:
a water stop part having an annular shape that stops water by being inserted into a through hole formed on a mounting panel; and
a closing part disposed so as to close the annular shape of the water stop part by extending in a radially inner side of the water stop part, wherein
the water stop part includes
an abutting surface formed in an annular shape capable of coming into contact with one side of a peripheral part of the through hole in an axial direction, and
a plurality of claw parts that face the abutting surface in the axial direction, that are capable of coming into contact with another side of the peripheral part of the through hole, and that are intermittently provided in a circumferential direction.

### Claim 2 (depends on 1)

The grommet according to claim 1, wherein
the claw parts are disposed along the circumferential direction at equal intervals.

### Claim 3 (depends on 1)

The grommet according to claim 1, wherein
the through hole includes an upright part having a peripheral part that projects toward one side in the axial direction, and
the water stop part includes an engagement part that engages a tip end of the upright part to a portion at a radially inner side of the claw parts.

### Claim 4 (depends on 2)

The grommet according to claim 2, wherein
the through hole includes an upright part having a peripheral part that projects toward one side in the axial direction, and
the water stop part includes an engagement part that engages a tip end of the upright part to a portion at a radially inner side of the claw parts.

### Claim 5 (depends on 1)

The grommet according to claim 1, wherein
the water stop part includes a concave part having an annular shape into which the peripheral part of the through hole is fitted, and
the claw parts are provided in the concave part, and are disposed on a radially inner side of a radial dimension of a portion where the closing part is connected to the water stop part.

### Claim 6 (depends on 2)

The grommet according to claim 2, wherein
the water stop part includes a concave part having an annular shape into which the peripheral part of the through hole is fitted, and
the claw parts are provided in the concave part, and are disposed on a radially inner side of a radial dimension of a portion where the closing part is connected to the water stop part.

### Claim 7 (depends on 3)

The grommet according to claim 3, wherein
the water stop part includes a concave part having an annular shape into which the peripheral part of the through hole is fitted, and
the claw parts are provided in the concave part, and are disposed on a radially inner side of a radial dimension of a portion where the closing part is connected to the water stop part.

### Claim 8 (depends on 4)

The grommet according to claim 4, wherein
the water stop part includes a concave part having an annular shape into which the peripheral part of the through hole is fitted, and
the claw parts are provided in the concave part, and are disposed on a radially inner side of a radial dimension of a portion where the closing part is connected to the water stop part.

### Claim 9

A wire harness, comprising:
a wire material having conductivity; and
a grommet provided on the wire material, wherein
the grommet includes
a water stop part having an annular shape that stops water by being inserted into a through hole formed on a mounting panel, and
a closing part disposed so as to close the annular shape of the water stop part by extending in a radially inner side of the water stop part, and
the water stop part includes
an abutting surface formed in an annular shape capable of coming into contact with one side of a peripheral part of the through hole in an axial direction, and
a plurality of claw parts that face the abutting surface in the axial direction, that are capable of coming into contact with another side of the peripheral part of the through hole, and that are intermittently provided in a circumferential direction.