Patent ID: 7396059
Filing Date: 2008-07-08
Classification: B25B,B25J

Abstract:
1. An angular pneumatic gripper, comprising: a body including a first element and a second element, said first element being symmetrical and identical to said second element, said first element and said second element being positioned such that said first element is disposed opposite said second element, said first element and said second element defining a cylindrical cavity within said body; an angular pneumatic piston for reciprocating in said cylindrical cavity of said body; a drive element; two gripper elements for gripping and releasing an item, said gripper elements being supported and guided in said body, said gripper elements being coupled to said piston via said drive element, said gripper elements being movable at angles in opposite directions between an open and closed position via said drive element and via movement of said piston, said first element and said second element defining a means for receiving and guiding said drive element; said first element and said second element being formed via die-casting, sintering or forging processes, each element of said body having a support base, an intermediate section element, two shoulder elements and a top crosspiece, each shoulder element being connected to said top crosspiece and said intermediate section element, said intermediate section of each element centrally forming said cylindrical cavity, said cylindrical cavity having an open end and a closed end, said open end of said cylindrical cavity of said first element being opposite said open end of said cylindrical cavity of said second element, said first element and said second element having a top wall, two housing elements and a sliding surface, said top wall, said two housing elements and said sliding surface defining a chamber having a first opening on one side and a second opening on another side, one housing element being opposite another housing element, said first opening of said first element being opposite said first opening of said second element, said sliding surface being positioned parallel above said cylindrical cavity and having a half-slot located at a side of said first opening, said intermediate section defining holes for receiving fasteners, said holes being adjacent said cylindrical cavity and extending parallel to said cylindrical cavity, said first element being fixed to said second element such that said chamber of said first element and said chamber of said second element form a drive receiving chamber and said cylindrical cavity of said first element and said cylindrical cavity of said second element form a piston receiving chamber and said half-slot of said first element and said half-slot of said second element form a full slot, said drive element engaging said sliding surface of said first element and said second element, said drive element being connected to said piston via a through pin, said through pin extending through said full slot, one gripper element extending through said second opening of said first element, another gripper element extending through said second opening of said second element, whereby a portion of each gripper element is located within said drive receiving chamber.