| 摘要 |
PURPOSE:To generate a large damping force by installing a movable wall onto which a piston is attached, at the stroke final edge part in a cylinder and allowing working-oil to flow-away through the movable wall or an orifice set between the movable wall and the cylinder wall. CONSTITUTION:When a piston rod 5 is pushed to the final edge, the caulk edge part 5a of the piston rod 5 collides with the head part of a guide bolt 23, and pushed into with a movable wall 25, and the oil in a working-oil chamber 26 is pressurized, and resistance is increased, and the oil flows into a pressurizing chamber 1 through an orifice 28 formed between the movable wall 25 and a cylinder 1. Since the passage area of the orifice 28 is small, a large damping force is generated. During transfer to a reverse cycle, the movable wall 25 shiftes, pressed by a spring 30, and the capacity of the working-oil chamber 26 increases, and a relief valve 29 is bent by the reduction of the pressure in the working-oil chamber 26, and a relief hole 27 is opened to introduce the working-oil into the working-oil chamber 26, and thus the movable wall 25 is restored. |
