| 摘要 |
<p>To provide a cutter device for a printer in which it is possible, in a printing state in which a movable blade is on standby for movement, to reduce a flicking noise generated between gears and to restrain vibrations generated. A cutter drive mechanism (20) is equipped with a one-way clutch mechanism (40) composed of a driving gear (27) connected to a driving means and a driven gear (28) in mesh with the driving gear, the driven gear having in a part of its outer peripheral portion (101) where teeth (G2) are formed a cutout portion (102) corresponding to a predetermined number of teeth; the tooth surface of a trigger gear member (T) equipped with teeth (G3) in a number less than that corresponding to the cutout portion faces the cutout portion; an arm portion (A) is arranged which supports the tooth surface while urging it clockwise; an urging means (torsion spring S) for imparting clockwise urging force is provided on the arm portion of the trigger gear member, and there is provided a rotation regulating means (K) for regulating counterclockwise rotation of the driven gear itself with the movable blade being at rest at the home position. <IMAGE> <IMAGE></p> |
