Patent ID: 7635154

Claim:
A parallel pneumatic gripper comprising: a gripper body forming a chamber closed by two end flanges; a pneumatic piston moving alternatively in said chamber; two jaws guided in a linear guide provided in said body parallel with said chamber, moved in opposite directions to each other by the piston; and a holding means for gripping and releasing items to be handled, wherein a first jaw is rigidly attached to the piston to unanimously follow movements of said piston, a second jaw being connected to the piston by means of a transmission element or lever that oscillates on a central support fulcrum in the gripper body, said transmission element or lever having a first end and a second end, said first end being opposite said second end, said first end being coupled with the piston, said second end being coupled with said second jaw, said transmission element or lever comprising an intermediate portion provided with a transversal bore for receiving the central support fulcrum and two terminal heads with rolling surfaces designed to couple with corresponding seats provided respectively on the bottom of a flaring shaped in one side of said piston and in the second jaw, said intermediate portion having a cross section that is greater than a cross section of another portion of said oscillating transmission element or lever, said transmission element or lever varying in length in response to the movement of said piston, said movement of said piston being in a direction opposite a direction of movement of said second jaw.