| 摘要 |
Between the outer circumferential surface of a housing (2) and outer circumferential surface of a stud portion (6) of a ball stud (3), an elastic dust cover (7) is attached in a manner blocking an opening portion (22) of the housing (2). In the dust cover (7), a first lip portion (54) which is closely fitted in a condition urged toward an end face (55) on a ball portion (4)-side of a brim portion (31) of a ball stud (3) is provided. Even in a case where the ball stud (3) is relatively greatly swayed with respect to the housing (2), since the first lip portion (54) and a second lip portion (56) follow the brim portion (31) to be closely fitted, sealing can be satisfactorily provided. |
