Abstract: A discharging apparatus for a shredder comprising two rotating axes installed in parallel within the shredder, two sets of cutters installed on their respective rotating axis and comprising a plurality of cutters to cut a document into strips, and two sets of spacers, each comprising a plurality of spacers positioned between two adjacent cutters to create gaps; at least one prominence is installed around at least one spacer to discharge the strips out of the spacer.

Abstract: The present invention provides a shredding module of a paper shredder that can cut more paper with less noise. The shredding module comprises two parallel rotatable shafts and two sets of circular shredding knives installed separately on the two rotatable shafts. Each of the shredding knives is made by punching a thin metal plate with a punching die. The shredding knife comprises a circular plate with a plurality of saw teeth around its circular edge, a circular recess on the circular plate, and a mounting hole positioned at the center of the circular plate. The peripheral portion of the concave side of each shredding knife is rotatably engaged with the peripheral portion of the concave side of a corresponding shredding knife mounted on the other rotatable shaft for cutting intervening paper. Each of the shredding knives further comprises a sloping edge on the circular edge of the convex side for sharpening the saw teeth so that the shredding module can cut more paper with less noise.