Patent ID: 7198212
Filing Date: 2007-04-03
Classification: B02C

Abstract:
1. A sheet shredder comprising: a cutting unit equipped with a cutter block pair having plural cutter discs arranged in parallel with each other at a specified distance to cut sheets by rotating the cutter discs of the cutter block pair along directions different each other; guide plates provided between the plural cutter discs to guide cut pieces of sheets cut by the cutter discs; and plural lead-out portions provided at the sides opposite to the cutter discs to lead out stickum adhered to the cutter discs or guide plates pursuant to the sheet cutting operation to the outside, wherein the lead-out portions are formed in concave shape hollow ground cross-sectional grooves formed on the guide plates, and the width of the grooves is configured to be narrower than width of the cut piece or the width of the cutter discs that defines the width of cut pieces.