US Patent 11047444 Damping stopper

Damping stopper for a mechanism in which a housing and shaft are not only displaced axially relative to each other but but also rotated relative to each other. The damping stopper is attached to a space portion between an end surface portion on housing side and an end surface portion on shaft side which is displaced axially relative to the housing and is rotated relative to the housing and has a metal fitting on one of the end surface portions, an elastic body connected to the metal fitting, and a sliding member connected to the elastic body. The sliding member contacts the other end surface portion to contact/separate from the other end surface portion and the sliding member is slidable and rotatable relative to the other end surface portion when the shaft is rotated while the sliding member, containing resin component, contacts the other end surface portion.