Patent ID: 8109170

Claim:
An umbilical member motion limiting device for use with a robot, for limiting the motion of a flexible umbilical member corresponding to the motion of the robot, the robot having a forearm, a wrist portion rotatably mounted to an end of the forearm, an operating tool attached to an end of the wrist portion, and the umbilical member connected with the operating tool through the forearm, wherein the umbilical member motion limiting device comprises: a swing portion configured to be rotatably attached to the wrist portion so as to swing around a swing axis perpendicular to a longitudinal direction of the forearm; a limiting portion arranged on the swing portion for limiting the motion of the umbilical member; and a swing restricting portion for restricting the swinging motion of the swing portion, wherein the swing restricting portion includes a stopping part adjustably connected to the swing portion, the stopping part protruding inward from the swing portion in a direction parallel with the swing axis and is configured to stop the swinging motion of the swing portion, but not the rotatable motion of the wrist portion, when the stopping part abuts against a part of the wrist portion; wherein the umbilical member limiting device is configured to limit the motion of the umbilical member without limiting the motion of the wrist portion on which the limiting device is attached.