Patent ID: 6786125
Filing Date: 2004-09-07
Classification: B41J,Y10T

Abstract:
A cutter device for cutting recording paper, the cutter device comprising:a movable blade; a stationary blade; a clutch mechanism having a driven gear mounted for undergoing rotation in clockwise and counterclockwise directions and a driving gear for rotationally driving the driven gear about a rotational axis; a cutter drive mechanism having a rotation device connected to the clutch mechanism so that through one complete rotation of the driven gear the rotation device reciprocally moves the movable blade between a first region in which the movable blade is spaced apart from the stationary blade and a second region in which the movable blade cooperates with the stationary blade to cut recording paper; and rotation regulating means for regulating rotation of the driven gear in the counterclockwise direction when the movable blade is in the first region, the rotation regulating means comprising a protrusion formed on a surface of the driven gear and having a vertical surface and an inclined surface, a vertical portion disposed in the vicinity of the rotational axis of the driven gear for engagement with the vertical surface of the protrusion when the movable blade is in the first region to thereby regulate rotation of the driven gear in the counterclockwise direction, and a rotation regulating member having an arm portion for undergoing displacement along the inclined surface of the protrusion when the driven gear undergoes rotation in the clockwise direction.