| 摘要 |
PROBLEM TO BE SOLVED: To prevent the application of an excessive force to a nipple part where a collar for seal link holding is installed. SOLUTION: At the foremost end of a nipple part 11 formed integrally with reserve tank main body by a synthetic resin member, a stepped part 111 is provided along the whole periphery of the outer periphery. A seal ring 3 is installed there. A collar 2 having a flange 23 for seal ring 3 holding is installed at the inner diameter side of the nipple part 111. A slit 22 is provided at the cylindrical part 21 of the collar 2, and an excessive force is not applied to the above nipple part 11 when this collar 2 is installed. As a result, the generation of a crack and the like in the nipple part 11 is prevented. |
