| 摘要 |
PROBLEM TO BE SOLVED: To adjust balance between support rigidity of a back-side arm in normal use and the amount of absorbed impact load.SOLUTION: A notch part 5 is formed on a front side of a vehicle of a movable bracket 2 rotatably and lockably provided on a rear part of a cushion-side arm 1. A first shock absorption part 2a for deforming the movable bracket 2 to absorb shock is provided when a load toward a rear side of a vehicle body acts on the movable bracket 2. A connecting part 6 for connecting an inner wall is provided near of an opening part of the notch part 5. A second shock absorption part for absorbing shock when the movable bracket 2 is deformed toward the rear of the vehicle body. When load toward the front side of the vehicle body is applied, the movable bracket 2 is prevented from being deformed toward the frontward side of the vehicle body. When load toward the rear of the vehicle body is applied, the first shock absorption part 2a is deformed to permit the movable bracket 2 from being deformed toward the rear of the vehicle body. |
