Suspension apparatus

摘要

A suspension apparatus includes: a cylinder connected to one of a sprung member and an unsprung member, an interior space of the cylinder being partitioned into a piston upper chamber and a piston lower chamber; a piston connected to the other of the sprung member and the unsprung member; an expansion side friction member configured to damp a movement of the piston, a force of the expansion side friction member for damping the movement of a piston being increased by exerting a pressure of the piston upper chamber on the expansion side friction member; and a contraction side friction member configured to damp the movement of the piston, a force of the contraction side friction member for damping the movement of the piston being increased by exerting a pressure of the piston lower chamber on the contraction side friction member.

主权项

1. A suspension apparatus comprising:
a cylinder, an interior space of the cylinder being partitioned into a piston upper chamber and a piston lower chamber; a piston; a piston portion provided with the piston, the piston portion configured to reciprocate through the cylinder and to partition the interior space of the cylinder into the piston upper chamber at an upper side of the piston portion and the piston lower chamber at a lower side of the piston portion; the piston further includes a piston rod that extends upward from the piston portion; an expansion side friction member configured to damp a movement of the piston toward the piston upper chamber, a force of the expansion side friction member for damping the movement of the piston toward the piston upper chamber being increased by exerting a pressure of the piston upper chamber on the expansion side friction member such that the expansion side friction member is pressed against the piston rod; and a contraction side friction member configured to damp the movement of the piston toward the piston lower chamber, a force of the contraction side friction member for damping the movement of the piston toward the piston lower chamber being increased by exerting a pressure of the piston lower chamber on the contraction side friction member such that the contraction side friction member is pressed against the piston rod, wherein the expansion side friction member and the contraction side friction member are disposed in the cylinder at an upper side of the piston upper chamber.