| 摘要 |
A rubber waterproof plug (25) is fitted to an outer circumference of a wire (27) extending from a terminal (29) and then inserted into a terminal accommodation chamber (31) formed in a connector housing (20) together with the terminal from a rear end of the connector housing, in order to seal a gap between the wire (27) and an inner wall (31a) of the terminal accommodation chamber (31). The waterproof plug is formed with: a clamp connection portion (33) formed at a front end portion of the waterproof plug and clamped with a front end of the wire by the terminal; and an airtight portion (47) of annular gill-shaped projections (49) formed at a rear end portion of the waterproof plug, for airtightly closing an opening (51) of the terminal accommodation chamber. In particular, an axial length of the annular gill-shaped projections (49) is determined in such a way that a rear end portion thereof is flush with or projects outside from an end surface (51a) of the opening (51) of the terminal accommodation chamber, irrespective of clamped position of the clamp connection portion (33) relative to the terminal. Therefore, even if the waterproof plug is dislocated slightly in the connector housing, it is possible to prevent water from staying at the opening surface of the connector housing, thus improving the reliablity of the waterproof plug.
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