SAFE JOINT MECHANISM FOR ROBOTS

摘要

PURPOSE: A safe joint device for a robot is provided to block power transmission in external force which can damage a robot joint and to control the power through a simple and plane device. CONSTITUTION: A safe joint device for a robot comprises an input disk(1), an action disk(2) and an elastic member(3). The input disk comprises two or more holes(11). The action disk has a protrusion(211) projected from the surface thereof. The elastic member adds the power in order to position the input disk and the action disk close to each other. When torque more than the fixed size is added between the input disk and the action disk, the protrusion of a ball inserted into the hole is separated from the hole and the input disk and the action disk are temperately separated.