Patent ID: 6129300
Filing Date: 2000-10-10
Classification: B02C

Abstract:
A blow bar for impactor rotors, comprising a bar body having a longitudinal cross-section which is mirror symmetrical relative to an axis of symmetry, said bar body having rear surfaces for supporting rearwardly and radially from inside against retaining pieces secured on a rotor, and also front contact surfaces for movable retaining pieces which hold the blow bar in engagement with the retaining pieces secured provided on the rotor, said bar cross-section of said bar body having a shape of a basic double trapezium with a longer base of each trapezium extending at said axis of symmetry, said bar body having a rear which corresponds to a height of each trapezium and is aligned at a right angle to said axis of symmetry so as to form a level surface over a height of said bar body, said bar body also having a groove-shaped recess provided at said rear, said recess running longitudinally in said bar body and being located at a level of said axis of symmetry so as to form said front contact surfaces.