CYLINDER DEVICE

摘要

A cylinder device includes a piston rod that is inserted into a cylinder so as to be movable back and forth. The piston rod has a rod portion that extends outside the cylinder, and a piston connected to an end portion of the rod portion, the piston moving in the cylinder in a slidable manner. The rod portion has a rod inner space formed in the rod portion, the rod inner space communicating with the piston-side chamber of the cylinder, a first communicating passage that connects the rod inner space and the rod-side chamber of the cylinder, and an orifice plug provided in the first communicating passage in a changeable manner. The piston is connected to the rod portion so as to cover a part of the orifice plug.

主权项

1. A cylinder device comprising a cylinder and a piston rod that is inserted into the cylinder so as to be movable back and forth, wherein
the piston rod has:
a rod portion that extends outside the cylinder; anda piston connected to an end portion of the rod portion, the piston moving in the cylinder in a slidable manner and partitioning an interior of the cylinder into a piston-side chamber and a rod-side chamber; the rod portion has:
a rod inner space formed in the rod portion, the rod inner space communicating with the piston-side chamber of the cylinder;a first communicating passage that connects the rod inner space and the rod-side chamber of the cylinder; andan orifice plug provided in the first communicating passage in a changeable manner; and the piston is connected to the rod portion so as to cover a part of the orifice plug.