Patent ID: 8523254

Claim:
A robot hand with a connection unit that is stretchably deformed in conformity with the shape of an object, the robot hand comprising: a variable connection device including a connection unit configured to provide a contact face that can be brought into pressurizing contact with a to-be-moved object and configured to be stretchably deformed so as to be in close contact with the to-be-moved object; a connection length controller configured to be operated in cooperation with a driving unit including a motor or a pump to stretchably deform the connection unit of the variable connection device so that the connection unit of the variable connection device undergoes a switch between a closed-loop state in which the connection unit is brought into pressurizing contact with an outer surface of the to-be-moved object either continuously or divided into a plurality of segments, and an open-loop state in which the connection unit is separated from the to-be-moved object; and a shape retention device configured to constantly retain the shape of the variable connection device in the closed-loop state in which the variable connection device is brought into pressurizing contact with the to-be-moved object at a preset pressure, wherein the variable connection device comprises a hand unit configured to allow the connection unit to vary in length by its position movement in the direction in which the hand unit approaches or moves away from the to-be-moved object in a state of constantly retain the shape thereof.