Patent ID: 8146472
Filing Date: 2012-04-03
Classification: B26D,Y10T

Abstract:
1. A paper cutting device for cutting multiple sheets of paper stacked in layers on a table, comprising: a pair of vertically extending guides; a paper retainer movably mounted to the vertically extending guides to move vertically along the guides to retain paper from above; and a cutter arranged to move vertically diagonally, ascend from below diagonally, and cut the paper; wherein the paper retainer comprises a receiving part arranged to contact an uppermost sheet of the multiple sheets of paper and to receive a cutter blade, and a paper retaining frame engaged with the vertically extending guides, said paper retaining frame having a bottom surface; wherein the receiving part is movably mounted onto the bottom surface of the paper retaining frame such that said receiving part is movable relative to said paper retaining frame so that the receiving part can be slidably shifted horizontally with respect to said paper retaining frame; wherein a solenoid, at least one pinion gear, and a transmission to cause rotation of said at least one pinion gear upon activation of said solenoid are mounted to said paper retaining frame, and said receiving part includes at least one rack engaged with said at least one pinion gear such that, upon activation of said solenoid, said receiving part is slidably shifted horizontally relative to said paper retaining frame; and wherein the receiving part comprises a metal base plate having a top surface and a bottom surface, a resin receiving plate having a top surface and a bottom surface and being joined to the metal base plate such that the top surface of the resin receiving plate faces the bottom surface of the metal base plate, and mutually engageable slip prevention parts respectively provided at the bottom surface of the metal base plate and the top surface of the resin receiving plate to prevent mutual slippage of the metal base plate relative to the resin receiving plate.