| 摘要 |
In the present invention a rod (15) is inserted into a bottomed cylinder (10) filled with operating oil, and a hydraulic damper (30) that absorbs pressing force in the direction causing the cylinder (10) and the rod (15) to retract relative to one another is provided in the cylinder (10). A cogwheel-shaped retaining ring (42) is formed integrally with an oil seal (40) sealing the end opening of the cylinder (10), thereby preventing a dust lip (40c) provided at the inner circumference of the oil seal (40) from being pulled into a center hole of the cogwheel-shaped retaining ring (42) by relative axial movement or relative tilting of the rod (15) and the cylinder (10). |
