Abstract: A parallel link mechanism includes three or more link mechanisms that couple a fixed base and an end-effector base. The end-effector base has a facing surface facing the fixed base. The link mechanisms each include a proximal-end joint, a proximal link, an intermediate joint, a distal link, and a distal-end joint. The proximal-end joint is rotatably coupled to the fixed base. The proximal link is coupled to the proximal-end joint. The intermediate joint is provided to the proximal link. The distal link is rotatably coupled to the proximal link via the intermediate joint. The distal-end joint rotatably couples the distal link to the end-effector base. The point of intersection at which the extensions of the axes of rotation of the proximal-end joints, the extensions of the axes of rotation of the intermediate joints, and the extensions of the axes of rotation of the distal-end joints intersect is the center of rotation of the end-effector base.

Abstract: A parallel link mechanism includes three or more link mechanisms that couple a fixed base and an end-effector base. The end-effector base has a facing surface facing the fixed base. The link mechanisms each include a proximal-end joint, a proximal link, an intermediate joint, a distal link, and a distal-end joint. The proximal-end joint is rotatably coupled to the fixed base. The proximal link is coupled to the proximal-end joint. The intermediate joint is provided to the proximal link. The distal link is rotatably coupled to the proximal link via the intermediate joint. The distal-end joint rotatably couples the distal link to the end-effector base. The point of intersection at which the extensions of the axes of rotation of the proximal-end joints, the extensions of the axes of rotation of the intermediate joints, and the extensions of the axes of rotation of the distal-end joints intersect is the center of rotation of the end-effector base.

Abstract: A robot includes an arm and a hand. The robot brings a tool gripped by the hand into contact with an object and changes at least one of the position and the posture of the hand gripping the tool.

Abstract: A robot hand is provided, the robot hand including three finger sections, a supporting section which supports a proximal end of each of the three finger sections, and a circumferential movement section which circumferentially moves a second finger section and a third finger section of the three finger sections about a position where the three finger sections are supported on the supporting section is provided. The circumferentially moving second finger section and third finger section are circumferentially movable in a range of 180 degrees or greater in a circumferential direction substantially around a hand axis of the robot hand, about the position where the three finger sections are supported on the supporting section.

Abstract: A robot hand includes a first finger unit and a second finger unit, a driving unit that causes the finger units to perform an opening and closing action, and a finger-unit moving mechanism that changes a direction in which the opening and closing action of the first finger unit and the second finger unit is performed. The finger-unit moving mechanism includes a worm wheel, a motor, and a worm. A first gear that rotates in a direction different from the rotating direction of the worm in association with the rotation of the worm is provided in the first finger unit. A second gear that rotates in a direction opposite to the rotating direction of the first gear in association with the rotation of the worm is provided in the second finger unit.

Abstract: A robot hand includes a first finger unit and a second finger unit, a driving unit that causes the finger units to perform an opening and closing action, and a finger-unit moving mechanism that changes a direction in which the opening and closing action of the first finger unit and the second finger unit is performed. The finger-unit moving mechanism includes a worm wheel, a motor, and a worm. A first gear that rotates in a direction different from the rotating direction of the worm in association with the rotation of the worm is provided in the first finger unit. A second gear that rotates in a direction opposite to the rotating direction of the first gear in association with the rotation of the worm is provided in the second finger unit.