Typewriting machines – Having power-driven operator for plural functions
Patent
1988-08-01
1993-03-23
Burr, Edgar S.
Typewriting machines
Having power-driven operator for plural functions
400214, B41J 2334, B41J 3512, B41J 3522
Patent
active
051958333
ABSTRACT:
A typewriter or similar machine with a ribbon and, if required, a correction tape on a pivotable support which can be lifted or lowered, the ribbon or the correction tape being movable in steps. The pivoting of the ribbon is necessary in order to give a view of the typed text. Since it is selectively possible to type or to correct, it is necessary to lift the support for the ribbon or the correction tape to different levels, so that the particular ribbon required is opposite the line to be printed. The transport of the ribbons as well as the lifting of the support is performed by means of a reciprocation-rotation motor. The respective rotational movement of the reciprocation-rotation motor is preferably transferred to one of the ribbons by toothed wheels. The ribbon can be moved on far enough so that a fresh ribbon surface is available. The same can be done for the correction tape. Depending on whether typing or correction is to take place, the support is pivoted by a set angular amount by means of the displaceable motor shaft, so that either the ribbon or the correction ribbon are at the level of the line to be printed. A simple construction with only a few components is assured by this design. Overriding clutches assure that, depending on the rotational direction of the motor, only one of the other of the ribbons is transported.
REFERENCES:
patent: 4099106 (1978-07-01), Nikaido
patent: 4234831 (1980-11-01), Kemmer et al.
patent: 4502802 (1985-03-01), Kuzuya
IBM Technical Disclosure Bulletin, vol. 26, No. 1, Jun. 1983.
Arter et al., (Arter) IBM Technical Disclosure Bulletin, "Stepping Motor With Shaft To Translation", vol. 26, No. 4, Sep. 1983, pp. 1897-1898.
Haftmann Johannes
Schmeykal Rudolf
Burr Edgar S.
Cohen Moshe I.
TA Triumph-Adler Aktiengesellschaft
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