Patent ID: 6593718
Filing Date: 2003-07-15
Classification: B25J

Abstract:
A horizontal multi-joint industrial robot, comprising:a base; arms sequentially pivotally attached to one another, a proximal end portion of a lowest one of said arms being rotatably supported by said base about a primary axis of rotation; a robot hand rotatably supported by a distal end portion of a highest one of said arms, said distal end portion being movable at least along a curved path which passes through said primary axis; a rotational driving source contained in said base including motors for rotatably driving said arms and said robot hand, said motors including a robot hand rotation motor; and a driving force transmitting mechanism for transmitting rotational driving force from said rotational driving source to the arms and the robot hand, respective portions of said driving force transmitting mechanism being provided in each of the arms and connecting parts of the arms, said driving force transmitting mechanism being operable to impart rotation to said robot hand by transmission of driving force from said robot hand rotation motor independent of rotational motion transmitted to the arms by said driving force transmitting mechanism.