Patent ID: 7073739
Filing Date: 2006-07-11
Classification: B02C

Abstract:
1. A crushing-breaking apparatus of casting products for crushing and breaking useless casting products by utilizing cutters of one cutter apparatus provided at a frame, cutters of other cutter apparatus provided at the frame opposed to the one cutter apparatus, means for governing extracting and retracting movements by a circular arc track of the other cutter apparatus, a support apparatus for supporting the other cutter apparatus and a fitting relationship of front end side mountain portions and bottom side mountain portions of the two cutters: (1) wherein charge opening dimensions and/or discharge opening dimensions of the one and the other cutter apparatus constituting the crushing-breaking apparatus are made variable; (2) wherein the charge opening dimensions and/or the discharge open dimensions are made variable by means for moving a support shaft of the support apparatus; (3) wherein the other cutter apparatus has two pivot points, and both pivot points move relative to the frame; (4) wherein the front end side mountain portions are constituted such that cutter front end side uppers of the front end side are projected relative to cutter front end side lowers of the front end side: and (5) wherein there is constructed a constitution in which imaginary extensions extended from the front end sides of the cutters of the one cutter apparatus intersect with the face of the cutter base by an acute angle.