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    • 1. 发明授权
    • Plastic center shredder disc
    • 塑料中心碎纸机
    • US07637448B2
    • 2009-12-29
    • US11677359
    • 2007-02-21
    • David HartnettAlex ChenDmitry N. Romanovich
    • David HartnettAlex ChenDmitry N. Romanovich
    • B02C7/04B02C13/20
    • B02C18/0007B02C18/182
    • A shredder for shredding data bearing substrates has a housing and shredder mechanism with cutter elements for shredding paper. The cutter elements are positioned along two shafts and interleave with the other when rotated relative to each other. At least one of the cutter elements comprises a pair of outer blades, preferably made of metal, and an inner support, preferably made of a plastic. The outer blades and inner support are aligned circumferentially to form a cross-cut tooth. The outer blades and inner support may be designed such that they are snap-fit together. The outer blades may be formed from a stamping or punching process, and the inner support may be molded.
    • 用于粉碎数据承载基底的粉碎机具有带有用于粉碎纸的切割元件的壳体和粉碎机构。 切割元件沿着两个轴定位并且在相对于彼此旋转时与另一个轴交错。 切割器元件中的至少一个包括优选地由金属制成的一对外部刀片,以及优选地由塑料制成的内部支撑件。 外刀片和内支撑件沿圆周方向对准以形成交叉切齿。 外刀片和内支撑件可以被设计成使得它们卡扣配合在一起。 外部刀片可以由冲压或冲压工艺形成,并且内部支撑件可以被模制。