Hollow blade for shredding paper

Hollow blade for shredding paper

  • CN 101,722,093 B
  • Filed: 12/31/2009
  • Issued: 04/17/2013
  • Est. Priority Date: 12/31/2009
  • Status: Active Grant
First Claim
Patent Images

1. hollow blade for shredding paper, comprise two blade units, each described blade units comprises blade, be located at the installing hole at described blade center and the edge of a knife that is positioned at described blade periphery, it is characterized in that, at least one described blade units is extended with the point of a knife group along its edge of a knife, the described blade doubling of each described blade units is built up the first blade, the second blade and the connecting portion that connects described the first blade and described the second blade, each described point of a knife group comprises the first point of a knife and the second point of a knife that lays respectively at described the first blade and described the second blade, and described the first point of a knife and described the second point of a knife overlap, and the described connecting portion of two described blade units is over against forming described hollow blade for shredding paper.

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