Patent ID: 6331758
Filing Date: 2001-12-18
Classification: B25J

Abstract:
An electric hand with a cushioning function comprising a pair of jaw members that are for grasping a workpiece and can be opened and closed, an electric motor having a rotating drive shaft, and a converting mechanism disposed between said drive shaft and said jaw members for converting a reciprocating rotating motion of said drive shaft to opening/closing motions of said jaw members,wherein said converting mechanism has a cam member mounted to said drive shaft of said electric motor, a pair of cam grooves formed in said cam member, and drive pins respectively mounted to said respective jaw members, respectively fitted into said respective cam grooves, and displaced in said cam grooves in an opening/closing direction of said jaw members by reciprocating rotation of said cam member,and cushioning means for absorbing impact that acts on said drive shaft when said cam member stops at swinging ends is provided between said drive shaft and said cam member.