Patent ID: 6267360
Filing Date: 2001-07-31
Classification: F16F

Abstract:
A shock absorber comprising:a cylinder having a stopping surface,a piston slidably situated in the cylinder, said piston being moved when it is pushed by a moving member,a switching device attached to the cylinder to be actuated right before the piston abuts against the stopping surface of the cylinder,an electromagnetic valve connected to the switching device and having a first position and a second position for allowing air in the cylinder to escape outwardly when the piston is moved and the electromagnetic valve is operated by the switching device, anda spring situated near the piston to allow the switching device to operate in association with a movement of the piston, said spring, when a pressing force applied to the piston is removed after the switching device is actuated, urging the piston in a direction away from the switching device to allow the switching device to return to an original position before the switching device was actuated.