PROBLEM TO BE SOLVED: To provide a bulky material shredder capable of surely shredding a long and/or thin waste material.;SOLUTION: This shredder is provided with a pair of upper shredding rollers 3 and 4 placed parallel, a lower shredding roller 5 placed below the upper shredding rollers 3 and 4, and stationary blades 6 placed oppositely to the lower shredding roller 5, and used for shredding a supplied waste bulky material with the pair of upper shredding rollers 3 and 4 and then finely shredding the resulting material with the lower shredding roller 5 and the stationary blades 6, wherein many shredding blades 8 are circumferentially fitted to the lower shredding roller 5 parallel to each other in the shaft direction of the shredding roller 5 so that each of the shredding blades 8 has a wavily bent shape. Thus, with the lower shredding roller 5 and the stationary blades 6 being opposite to the lower shredding roller 5, the shredded material obtained by the upper shredding rollers 3 and 4, is further finely shredded.;COPYRIGHT: (C)2002,JPO
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