| 摘要 |
PROBLEM TO BE SOLVED: To decrease a locking force of one-motion grommet which is locked in a through hole of a vehicle body panel by a push from one direction. SOLUTION: An expanded diameter cylinder part is provided between the first and second small-diameter cylinder parts disposed on the both sides of the length direction. The first small-diameter cylinder part is the front of the insertion side, which is formed by expanding a lightening part forward from the back end surface of the expanded diameter cylinder part on the side in continuity with the second small-diameter cylinder part. The expanded diameter cylinder part is branched to an outer cylinder and an inner cylinder in continuity with the second small-diameter cylinder part. A recessed part for locking a vehicle body is provided by being extruded opposing a sloped wall and vertical wall on the outer circumferential surface of the outer cylinder at a rare side from the backmost part of the lightening part. The backmost position of the lightening part is located on the inner diameter side than the base end of the sloped wall. In the opening side of the lightening part located inside of the vertical wall, in addition, the outer circumferential surface is tilted so that the opening end side spreads outwardly. |
