| 摘要 |
An anchoring structure for an annular member comprises a housing (3) having a first case (11) and a second case (9) that are integrally fitted, and an annular member (5). The annular member is anchored so as to protrude from the housing with a portion thereof being disposed between the first case and the second case. The annular member comprises an external member (53) that protrudes outside of the housing and forms a gap (51) with the housing, and an internal member (55) that is coupled to the external member and is disposed inside the housing. The first case has a shape into which a first end of the internal member can be inserted and comprises a first engaging part (89) that restricts movement in the direction away from the first case on the first end side. The first case comprises a second engaging part (91) that restricts movement of a second end, which is opposite to the first end of the internal member, in the direction away from the first case while the first end side of the internal member is engaged with the first engaging part. Thus, even when the annular member experiences a twisting force, the annular member is not easily removed from the housing and the first case is not easily disengaged from the second case. |
