Patent ID: 6766973
Filing Date: 2004-07-27
Classification: E02F

Abstract:
Concrete-crushing pincers comprising a first pincer jaw and a second pincer jaw which are connected to one another via a joint and are movable via hydraulic cylinders about a swivel axis formed by the joint from an open position into a closed position, wherein the first pincer jaw is formed by a frame body in which first concrete-crushing sectors and first cutting sectors are disposed, and wherein the second pincer jaw is formed by a body on which second concrete-crushing sectors and second cutting sectors are disposed, which, during closing of the concrete-crushing pincers, while the second pincer jaw penetrates into the frame body of the first pincer jaw, cooperate with the first concrete-crushing sectors and the first cutting sectors of the first pincer jaw, and the first and the second cutting sectors are formed of first and second cutting elements, respectively, which are inserted in receiving pockets respectively affixed in the first pincer jaw and the second pincer jaw and are detachably fastened therein, wherein:the first cutting elements are fastened to the lateral areas of the first pincer jaw and the second pincer jaw; and the first cutting elements are each formed of a block provided with a bend, the convex surface of which rests in the receiving pocket provided with a corresponding support surface, and the concave surface of which, with the lateral surfaces lying in a plane standing perpendicular to the swivel axis, each form a cutting edge.