Patent ID: 6767315
Filing Date: 2004-07-27
Classification: B23Q,B27L,Y10T

Abstract:
A device for comminuting material, comprising:a tool ring having uniformly distributed about a circumference thereof tool receptacles for comminution tools, the tool ring having an axis of rotation and the tool receptacles being parallel to the axis of rotation; a unit for simultaneously pushing at least two of the comminution tools out of the tool ring, the unit being arranged on a front side of the tool ring; wherein the unit for pushing the comminution tools has at least two pushing elements axially aligned with the at least two comminution tools to be pushed out; an advancing drive configured to simultaneously move and retract the at least two pushing elements axially into and from the at least two tool receptacles of the tool ring; and a transverse beam on which the at least two pushing elements are arranged, wherein the advancing drive acts on the transverse beam.