Abstract: An industrial robot, designed for use in a press brake system, has a holding member for holding a plate shaped material, a base arm, and a working arm. The holding member nearly follows the plate shaped material without holding during a pressing process of the press brake by ensuring sufficient reciprocating distance between the holding member and the base arm, and by decreasing the mass of rotary axes and corresponding second arm members of the working arm which is used to control direction, altitude and other aspects of the plate shaped material. The industrial robot preferably ensures a degree of freedom in the width direction of the press brake by rotatably securing a first arm member to the base arm.

Abstract: An industrial robot provided with at least six joints and adapted to have at least six degrees of freedom, wherein rotational joints rotatable around axes extending lengthwise of the arm and bending joints swingable around perpendicular axes extending perpendicularly to the lengthwise direction of the arm, thereby enabling the position and attitude control for a wrist at the arm and the obstacle avoiding control to change height of an elbow portion at the arm so as to avoid the obstacle.