Patent ID: 6676363
Filing Date: 2004-01-13
Classification: B25J

Abstract:
A system comprising a motorized manipulator robot, said manipulator robot having a manipulator arm movable by a first motor piloted by a command and control unit, whereby the first motor and the unit are installed in a frame mounted on running gears, wherein:the first motor has a rotary output shaft on which a mechanical torque is applicable, the manipulator arm is affixed by one end to a hub provided with an axial internal screw threading in which a threaded part of a drive shaft is engaged by being screwed in, said drive shaft being coupled to the rotary output shaft of the first motor, the system further comprising a brake gear that is connected to the hub and to the drive shaft, said brake gear immobilizing the hub relative to the drive shaft when a resistance torque exerted on the hub is less than a predetermined value, said brake gear allowing the rotation of one of said hub and said drive shaft relative to the other of said hub and said drive shaft when the resistance torque is equal to the predetermined value; and a means for locking activatable by the command and control unit for locking the rotation of the hub and the manipulator arm, said means for locking locked onto the hub or the arm for enabling said manipulator arm to be moved in translation relative to the frame by activation of the first motor.