| 摘要 |
PURPOSE: To prevent a spring end part from making any contact with the outer periphery of the rod and the inner periphery of a cylinder and restrain the generation of noise by connecting one end of a rebound spring to a cylinder opening end and other end to a holder slidable to a piston rod. CONSTITUTION: A cushion 6 rising with a rod 2 is brought in contact with the lower end of a holder 8 for supporting the lower end 3b of a rebound spring 3 under such state that a piston rod 2 is projected by its large stroke and a hydraulic buffer is nearly extended to the utmost. From this state, when the piston rod 2 is further projected from the inside of a cylinder 1 and reaches its most extended state, this projection is restrained by the energizing force of the rebound spring 3 and then cushion effect is displayed. At this time, the upper end 3a of the rebound spring 3 is connected to the guide part 5a of a bearing 5 which is a fixed end and its lower end 3b is interposed to the rod 2 through the holder 8. Therefore, the upper end 3a and the lower end 3b become so called loose and the contact to the inner periphery of the cylinder 1 and the outer periphery of the piston rod 2 is eliminated. |
