Typewriting machines – Including interposed inking device for record-medium – Ribbon-reversing mechanism
Patent
1980-03-18
1982-08-03
Bratlie, Steven A.
Typewriting machines
Including interposed inking device for record-medium
Ribbon-reversing mechanism
4002212, 400231, 400233, B41J 3344
Patent
active
043425208
ABSTRACT:
An inkribbon feed mechanism is disclosed which feeds the inkribbon by utilizing power of a spacing motor by which a print head is transversed. The inkribbon feed mechanism comprises commanding means which detect a command element for reversing the inkribbon near one end of the inkribbon, an arm member which interlocks with the command means via a spring member and is pivotably supported by a pivot, a planetary gear member which is provided at one end of the arm member and is rotated by the power of the spacing motor via a drive gear member. In compliance with the alternate rotation of the spacing motor, the planetary gear member engages with a gear member of one reel or is slightly moved in orbit by the drive gear member so as not to render a rotational force to the reel. The arm member is pivoted by the command means to change the object which the planetary gear engages.
REFERENCES:
patent: 584497 (1897-06-01), Eckels
patent: 1949107 (1934-02-01), Mosfelt et al.
patent: 2902136 (1959-09-01), Whippo
patent: 3726381 (1973-04-01), Murphy
patent: 3786906 (1974-01-01), Okabe
patent: 3954167 (1976-05-01), Krantz et al.
patent: 4182576 (1980-01-01), Fujimori et al.
IBM Technical Disclosure Bulletin, vol. 20, #2, Jul. 1977, "Gear Drive Ribbon Reversing Mechanism."
Print Mechanism Ribbon Feed, Bernard, IBM Technical Disclosure Bulletin, vol. 7, No. #3, 8/64.
Hagiwara Shigemi
Isobe Minoru
Shimizu Makoto
Bratlie Steven A.
OKI Electric Industry Co., Ltd.
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