Patent ID: 7866003

Claim:
A buffer, comprising: an engagement member, a case body relatively movable with respect to the engagement member, a slider provided in the case body and slidable in a longitudinal direction of the case body; a buffering member rotatably attached to the slider; a pressing member attached to the slider and having an engagement stepped portion or a cam projecting portion; a brake plate fixed to the case body; a first brake pad attached to the pressing member; a second brake pad attached to the slider; and an elastic means for moving the slider relative to the case body; wherein the buffering member is rotated through abutment with the engagement member such that the engagement stepped portion or cam projecting portion presses the pressing member and moves along with movement of the engagement member or the case body while retaining the pressing state by sandwiching the brake plate between the first brake pad and the second brake pad by the engagement stepped portion or the cam projecting portion so as to buffer relative movement of the engagement member and the case body.