Patent ID: 6691991
Filing Date: 2004-02-17
Classification: B60G,F16F

Abstract:
A shock absorber comprising: a piston rod, a cylinder body, a shock absorbing spring and a buffering spring;said piston rod having a coupling portion and a flange formed in turn at a first end, and a washer at a second end; said cylinder body being a hollow pipe formed with threads formed on an outer surface, including a cover threadly mounted to a first end thereof, the cover interiorly set with a limiting member, the limiting member having a passage corresponding to a rod portion of said piston rod interiorly formed therethrough for ensuring the rod portion of said piston rod sliding steadily in said cylinder body and limiting the washer of said piston rod to slide in said cylinder body without sliding out, said cylinder body having a coupling portion formed at a second end thereof corresponding to the cover and a stopping member screwed thereon corresponding to the coupling portion; said shock absorbing spring having a predetermined elasticity coefficient and movably mounted to said cylinder body with a first end abutting against the flange of the piston rod and a second end abutting against the stopping member of said cylinder body; said buffering spring having a predetermined elasticity coefficient relatively minor than that of said shock absorbing spring and movably mounted to the rod portion of said piston rod with a first end abutting against the limiting member of said cylinder body and a second end abutting against the washer of said piston rod.