Damping device for hinge assembly

摘要

A hinge assembly includes a housing (10), an arm (12) and at least one spring (14). A damping device includes a damper (18), a maintaining member (16) and an adjustment member (20). The damper (18) is installed to the housing (10) and has a piston rod (76). The maintaining member (16) is secured in the chamber (36) of the housing (10) and has a path (72) in which the damper (18) is located. The adjustment member (20) is movably connected to the maintaining member (16) and has a protruded portion (92) located corresponding to the piston rod (76) of the damper (18). When the adjustment member (20) is moved to a first position relative to the maintaining member (16), the protruded portion (92) of the adjustment member (20) is located toward the piston rod (76) of the damper (18). When the housing (10) is closed relative to the arm (12), the damper (18) is pushed by the arm (12) so that the piston rod (76) contacts the protruded portion (92) and retracts to perform damping function. When the adjustment member (20) is moved to a second position relative to the maintaining member (16), the protruded portion (92) of the adjustment member (20) is moved away from the piston rod (76) of the damper (18). The piston rod (76) of the damper (18) cannot contact the protruded portion (92) of the adjustment member (20) and no damping function is available.