| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pressure buffering device that can change a damping force with a simple structure.SOLUTION: A hydraulic pressure buffering device 1 comprises: a cylinder 11 that houses oil; a rod 21 of which an end part on one end is housed in the cylinder 11, of which an end part on the other side is protruded from an opening part of the cylinder 11, and that moves in an axial direction of the cylinder 11; a first piston valve part 30 that generates a damping force as the rod 21 moves; a magnetic free piston 52 that is provided so as to be movable in an axial direction of the rod 21 and changes the magnitude of the damping force generated by the first piston valve part 30; and a first electromagnet 56 and a second electromagnet 57 that move the free piston 52 with magnetic forces generated by them.</p> |
