# US 7,607,940 B2 · Waterproof connector

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- Number: US 7,607,940 B2
- Document ID: US7607940B2
- Status: Granted
- Kind: B2
- Application number: 11/661,921
- Filed: 2005-09-05
- Published: 2008-08-14
- Granted: 2009-10-27
- Earliest claimed: 2004-09-06
- Assignees: Yazaki Corporation; Calsonic Kansei Corporation
- Inventors: Kenichi Ikeya; Yasuhiro Sasaki; Tsuneyuki Takahashi; Takahiro Yoneda; Ryo Sawada; Ken Yoshimura; Nozomi Ito
- Web page: https://patentgrep.com/patent/US7607940B2

## CPC

- H01R 13/5221: {having cable sealing means}
- H01R 13/6215: {using one or more bolts}
- H01R 13/5205: {Sealing means between cable and housing, e.g. grommet (H01R13/5221 takes precedence)}
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS

## Abstract

A waterproof connector, comprising a pair of male and female housings (30, 40) engaged with each other. The waterproof connector also comprises a grommet (10) covering at least one of the housings (30, 40) and a fastening member (50) inserted from the grommet (10) side into the pair of male and female housings (30, 40) to connect them to each other. In addition, the grommet comprises a sealing part (12) having a predetermined length along the inserting direction of the fastening member (50) and formed integrally with a grommet body (11) at the outlet side end part (14) thereof.

## Claims

### Claim 1

A waterproof connector comprising:
a first connector housing;
a second connector housing fitted to the first connector housing;
a grommet configured to cover at least one of the first connector housing and the second connector housing; and
a fastening member inserted from a side of the grommet to connect the first connector housing with the second connector housing, wherein
the grommet is formed with a predetermined length along the inserting direction of the fastening member and includes a sealing part formed integrally with the grommet at a grommet's part into which the fastening member is to be inserted,
and wherein the sealing part includes an outer surface and is provided, on an outer peripheral part thereof, with an annular groove defined, at least in part, by an engagement extension part recessed from the outer surface of the sealing part in the inserting direction of the fastening member, the engagement extension part absorbing a tension when the grommet is pulled.

### Claim 2 (depends on 1)

The waterproof connector of claim 1, wherein
at least one of the first connector housing and the second connector housing is provided with an engagement part, and
the sealing part is provided, on an outer peripheral part thereof, with a catching part for engagement with the engagement part.