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    • 46. 发明公开
    • Correction device for typewriters
    • KrerekturvorrichtungfürSchreibmaschinen。
    • EP0276555A2
    • 1988-08-03
    • EP87310845.0
    • 1987-12-09
    • Ing. C. Olivetti & C., S.p.A.
    • Quaranti, GiovanniGillio, ClaudioBonmassari, Gianpaolo
    • B41J29/36B41J29/26
    • B41J29/36B41J1/24
    • The correction device (12) is applied to an electronic typewriter and a daisywheel (27) and comprising an electric selector motor (28) which selectively rotates the character-­carrying daisywheel (27) in the clockwise and the anti-clockwise directions for selecting the characters to be typed and/or corrected, a carrier (36) for a correcting ribbon and a control member (56) for lifting the carrier (36) and permitting correction of the typed characters. A small correcting solenoid (63) can be activated to couple the control member (56) of the correcting ribbon to the selector motor (28). The control unit controls the motor (28) and the solenoid (63) in such a way that the selector motor (28) can also actuate the control member (56) in each correction cycle for positioning the correcting ribbon in front of the typing point. In the illustrated form, the solenoid (63) unlatches a lever (46) which drops to bring the control member (gear 56) into mesh with a gear (67) on the motor shaft (29). The control gear (56) is eccentrically mounted on the lever (46) and a first 180° revolution, corresponding to 360° revolution of the daisywheel (27) raises the lever (46) and carrier (36) to correcting ribbon height which a subsequent 180° rotation drops the carrier (36) back to typing ribbon height with the lever (46) latched by the solenoid armature (62).
    • 校正装置(12)被应用于电子打字机和菊花轮(27),并且包括电动选择器马达(28),其选择性地沿着顺时针和逆时针方向旋转字符携带菊花轮(27),以选择 要打印和/或校正的字符,用于校正色带的载体(36)和用于提升载体(36)并允许校正字符的控制构件(56)。 可以激活小的校正螺线管(63)以将校正色带的控制构件(56)耦合到选择器电动机(28)。 控制单元控制马达(28)和螺线管(63),使得选择马达(28)也可以在每个校正循环中致动控制构件(56),以将校正带定位在打字点的前面 。 在所示的形式中,螺线管(63)松开一个下降的杆(46),使控制构件(齿轮56)与马达轴(29)上的齿轮(67)啮合。 控制齿轮(56)偏心地安装在杠杆(46)上,并且对应于菊花轮(27)的360°旋转的第一个180°旋转将杆(46)和托架(36)升高以校正色带高度, 随后的180度旋转使托架(36)回到打字带高度,并且由螺线管电枢(62)锁定的杆(46)。