SHOCK ABSORBER

摘要

A hydraulic shock absorber includes: a cylinder that houses a liquid; a piston housing provided in the cylinder so as to be movable in an axial direction and partitions a space in the cylinder into a first oil chamber and a second oil chamber; a valve seat forming a channel for a liquid flowing across the first oil chamber and the second oil chamber in conjunction with movement of the piston housing; a damping valve that opens and closes a channel port of the channel in the valve seat to control a flow of the oil through the channel: a pressure chamber that houses the oil and that enables a pressure of the oil that has been housed to be changed; and a pressing portion that uses a pressure in the pressure chamber to press the damping valve in a direction in which the damping valve closes the channel port.

主权项

1. A shock absorber comprising:
a cylinder that houses a liquid; a partitioning portion that is provided in the cylinder so as to be movable in an axial direction and partitions a space in the cylinder into a first liquid chamber and a second liquid chamber; a channel forming portion that forms a channel for a liquid flowing across the first liquid chamber and the second liquid chamber in conjunction with movement of the partitioning portion; a valve that opens and closes a channel port of the channel in the channel forming portion to control a flow of the liquid through the channel; a pressure chamber that houses the liquid and that enables a pressure of the liquid that has been housed to be changed; and a pressing portion that uses a pressure in the pressure chamber to press the valve in a direction in which the valve closes the channel port.