Patent ID: 7252031
Filing Date: 2007-08-07
Classification: F16F

Abstract:
1. A cylinder apparatus comprising a cylinder, a piston which is slidably inserted into said cylinder, and a piston rod which is connected to said piston at one end of the piston rod and extended outside of said cylinder at the other end, said cylinder apparatus further comprising: in said cylinder, a rebound spring having at one end a spring holder which is slidably guided along said piston rod, and whose other end is fixed to said piston rod so as to be compressed by an extending stroke of said piston rod; and a stopper unit which is fixed to said piston rod apart from said piston at a position between said spring holder and said piston, and adapted to come into contact with said spring holder before said rebound spring has been compressed to its state of maximum compression, thereby preventing further compression of said rebound spring, wherein said spring holder has a bushing on its inner peripheral face, and said spring holder is slidably guided along said piston rod by way of said bushing.