US Patent 7761939 Siderail spring dampener

A patient support comprises a frame, a siderail, a linkage coupled to the siderail and coupled to the frame to guide movement of the siderail relative to the frame between a raised position and a lowered position, and a dampener. The dampener includes a coil spring, a first link coupled to the linkage and having a free end received inside the coil spring, and a second link coupled to the frame and having a free end received inside the coil spring.