Patent ID: 8342314

Claim:
Object transfer device comprising: a frame, a gripper including a gripper body, a guiding member adapted to guide the gripper body with respect to the frame; the gripper including: one or more jaws mounted on the gripper body and being movable with respect to the gripper body between a first configuration and a second configuration of the gripper, one of said first or second configurations corresponding to the opening of the gripper and the other of said first or second configurations of the gripper corresponding to a clamping of the gripper onto the object to be transferred, an operating device adapted to operate the gripper from the first configuration to the second configuration of the gripper, and a permanent return device permanently adapted to bring the gripper from the second configuration of the gripper to the first configuration of the gripper; wherein the operating device comprises a magnetic element and is capable of overcoming the action of the return device only when the magnetic element is subjected to a magnetic field greater than an efficiency threshold, and wherein the frame comprises a control device of the gripper capable of creating a magnetic field greater than the efficiency threshold in at least one zone of the frame dedicated to the operation of the gripper; said guiding member being designed so that the magnetic element of the gripper is driven along a movement path passing through the operation zone of the gripper defined by the control device.