| 摘要 |
PROBLEM TO BE SOLVED: To provide a water-proof plug that is able to improve waterproof performance.SOLUTION: A waterproof plug 21, the entire of which is inserted into an accommodating part in a housing, comprises: a housing seal part 27 disposed in contact with the internal face of the accommodating part; and an electric-wire sealing part 29 disposed in contact with the external surface of the electric wire. The waterproof plug 21 also comprises a waterproof first end part 30, and a waterproof second end part 31 opposite to the part 30. The housing seal part 27 includes: an external first lip part 33 disposed at the water-proof plug first end part 30, an external second lip part 34 disposed at the water-proof plug second end part 31 side; and an external third lip part 35 disposed between them. Additionally, the electric-wire sealing part 29 includes: an internal first lip part 36, an internal second lip part 37 and an internal third lip part 38, which have the same shape as the housing seal part 27. In such a waterproof plug 21, an annular groove part 41 in which first and second crush-deformable bent spaces 39, 40 are formed in the same shape. |
