Patent ID: 8616599

Claim:
A hand comprising: a pair of supporting units; a pair of capturing claws that are supported on inner surfaces of the pair of respective supporting units and capture a part; an opening-and-closing mechanism that includes an opening-and-closing servo motor to open and close the pair of supporting units along a reciprocating axis intersecting with longitudinal directions of the supporting units; and a reciprocating mechanism that includes a reciprocating servo motor to make the pair of capturing claws rotate about the reciprocating axis to change a direction of each tip of the capturing claws, wherein the opening-and-closing servo motor and the reciprocating servo motor face opposite directions to each other with a longitudinal direction of the opening-and-closing servo motor and a longitudinal direction of the reciprocating servo motor being arranged substantially in parallel with the reciprocating axis, and are disposed at a base end of the hand.