| 摘要 |
PURPOSE:To attempt to freely obtain the buffering force characteristic by providing a control wall in a partitioning member that is made to face to the free edge of an elastic valve plate supported by a partioning member and to form a throttle part of the flow passage in between with the edge. CONSTITUTION:A flow passage 16 connecting two oil rooms 6, 7 and a buffering valve 9 are provided in a piston 5 that divides the inside of a cylinder 3 to the upper and lower oil rooms 6, 7. An upper spacing tube 22, an upper fulcrum plate 24, multiple pieces of circular valve plates 26, a lower fulcrum plate 25, and a lower spacing tube 23 are contained in the hollow part 21 of this piston 5, and locked to a piston rod 4 by a nut 27. And a control wall 28 composed of a flat top a and inclined parts b, c is formed on the inner circumferential surface of the piston 5 to form the throttle part 16a of the flow passage 16 facing to the outer circumferential edge of the valve plate 26. Consequently, it is possible to gain the buffering force characteristic freely, and to make it to the damping force characteristic that differs when the buffer is compressed and expanded. |
