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    • 9. 发明公开
    • PRINTERS
    • EP0929402A1
    • 1999-07-21
    • EP98924560.0
    • 1998-06-10
    • Casio Computer Co., Ltd.
    • IMAI, Kazuhide
    • B41J3B26D1B26D5B41J11
    • B41J11/703B26D1/305B26D5/10B26D5/16Y10T83/8805Y10T83/8807Y10T83/8844
    • In a tape cutting mechanism, when a tape is cut manually, a rack (58) which is lowered by pushing a push button (14) down meshes with a gear (48) by guidance of a guide groove (59) to thereby cause a scissors cam (46) to make a single complete rotation along with a pin (46b) around a cam shaft (47). The pin (46b) half rotates to raise a turnable arm (52b) up so that a turnable blade (52a) is turned toward a fixed blade (55) to cut a printed tape portion. By the remaing half rotation, the turnable arm (52b) is returned to its reference position. When the rack (58) rises with the resiliency of a compression spring (57) due to release of the push button (14) from its pushed state, the rack (58) is disengaged from the gear (48) with the guide of the guide groove (59). When the tape is cut automatically, the motor (37) is rotated, the scissors cam (46) is rotated along with the pin (46b) via a worm (38), worm wheel (29), smaller gear (40), reduction gear (41), spur gear (43), bevel gears (42, 44), one-way clutch (45) and cam shaft (47) to cause the rotatable and fixed blades (52a and 55) to cooperate to cut the printed tape portion.
    • 在带切割机构中,当手动切割带时,通过引导凹槽(59)的引导,通过向下按压按钮(14)而下降的齿条(58)与齿轮(48)啮合,从而引起 剪刀凸轮(46)与凸轮轴(47)上的销(46b)一起完成一次完整的旋转。 销(46b)半转动以使可转动臂(52b)向上升起,使得可转动刀片(52a)转向固定刀片(55)以切割印刷带部分。 通过剩余半圈旋转,可转动臂(52b)返回到其参考位置。 当由于按钮(14)从其按压状态释放而使齿条(58)借助压缩弹簧(57)的弹性而上升时,齿条(58)通过 导槽(59)。 当带自动切断时,马达(37)旋转,剪刀凸轮(46)与销(46b)一起经由蜗杆(38),蜗轮(29),小齿轮(40),减速器 (41),正齿轮(43),锥齿轮(42,44),单向离合器(45)和凸轮轴(47),以使可转动和固定的刀片(52a和55)配合切割印刷品 磁带部分。