Abstract: A bicycle adjustable cushion device includes an outer tube with a connection cap connected to a first end thereof and an inner tube has a first end movably and rotatably inserted in a second end of the outer tube. A rod has a first end fixed to the connection cap and a second end of the rod movably inserted through a polygonal hole in an end plate threadedly connected to the first end of the inner tube. An elastic rubber is received in the outer tube and the rod extends through the elastic rubber. Two ends of the elastic rubber are in contact with an inside of the connection cap and the end plate which is movable to compress the elastic rubber by rotating the inner tube.

Abstract: A damper device includes a shaft 2 inserted relatively rotatably into an axial hole 1a provided in a bearing portion 1. A high flexible resin portion 3 is provided between an outer circumferential surface of the shaft 2 and an inner surface of the axial hole 1a. A recess portion 4, with which the high flexible resin portion 3 contacts, and into which the high flexible resin portion 3 bites by relative rotation of the shaft 2 to the bearing portion 1, is provided in either one or both of the inner surface of the axial hole 1a and the outer circumferential surface of the shaft 2.

Abstract: A motor vehicle rack and pinion steering gear having torsional damping by friction between an annular plastic damper ring on a housing of the steering gear and a journal surface on a pinion shaft of the steering gear. The damper ring has an outer wall press fitted in a pinion shaft bore of the housing to nonrotatably mount the ring on the housing and a plurality of flexible inner fingers resiliently bearing against the journal surface. An annular metal spring is disposed on the damper ring and includes a plurality of integral legs bearing against the flexible inner fingers of the damper ring to press the fingers against the journal surface.