| 摘要 |
A desktop paper shredder including a housing in which a pair of shafts are rotationally mounted. The housing is provided with an entrance that corresponds to and is aligned with the shafts. A paper trash container is removably disposed at the lower portion of the housing. The shafts are driven by a driving device and meshed with each other such that their rotations are opposite to each other. Each shaft is further provided with a spiral groove in which a plurality of sets of shredding blades are disposed therein. Each of the sets of shredding blades is spaced from the next set of shredding blades by a spacing collar on which is provided a paper trash stopper. The external end portion of each paper trash stopper is fixedly attached to the configuring tab within the housing. The perimeter of each shredding blade is further provided with a plurality of knives. Each shredding blade is further provided with a projecting tab that rests in a selected spiral groove. Accordingly, the knives of the shredding blades are spirally arranged along the shaft. The shredding blades alternatively intersect with each other to effectively shred an inserted paper sheet as the shafts are rotated in opposite directions to each other.
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