Bumper rubber

Abstract

A bumper rubber is disclosed and includes: a bumper rubber body being elastically deformable and having a substantially cylindrical shape, wherein the bumper rubber body is inserted into a rod extending from a top end portion of a cylinder of a shock absorber, a top end surface thereof is brought into contact with a bottom end portion of a suspension insulator disposed on a vehicle body, and a bottom end surface thereof is brought into contact with a top end portion of the cylinder, thereby being elastically deformed and absorbing the excessive displacements of the shock absorber; and a rigid ring integrally insert-molded on an outer periphery surface of the bumper rubber body and having an engagement groove on an exposed outer periphery surface thereof to be engaged with a dust cover, and the engagement groove going round on the exposed outer periphery surface of the rigid ring in a ring-like shape. Thus, the bumper rubber is hardly bent when the cylinder of the shock absorber is displaced excessively, because the bumper rubber has the pressing force of the cylinder of the shock absorber exerted to the whole of itself, thereby absorbing the excessive displacements. In addition, the bumper rubber can be securely engaged with the dust cover which protects the cylinder and the rod of the shock absorber when it is subjected to the vibrations and the deformations of the bumper rubber body caused by a traveling vehicle, because the dust cover is engaged with the engagement groove of the rigid ring which is free from the elastic deformation.