Typewriting machines – For line-spacing by incremental rotation of platen – By gear train
Patent
1994-11-14
1996-03-05
Yan, Ren
Typewriting machines
For line-spacing by incremental rotation of platen
By gear train
400691, 400692, B41J 1912
Patent
active
054961203
ABSTRACT:
A drive force transmission mechanism is applied to, for example, a printer, to transmit a drive force to a driven element such as a platen, a paper feeder, and an ink ribbon cassette, etc., included in the printer. The drive force transmission mechanism including a subsidiary frame detachably attached to a main frame such as a printer frame and having at least one shaft member projected therefrom, and at least one transmission member such as a gear rotatably supported by the shaft member to be engaged with the driven element so that the drive force is transmitted thereto. Since the transmission member is rotatably supported by the shaft member of the subsidiary frame detachably attached to the main frame, only the subsidiary frame need be replaced if a shaft member is broken.
REFERENCES:
patent: 3766801 (1973-10-01), Wiegand
patent: 4347759 (1982-09-01), Renk et al.
patent: 4616944 (1986-10-01), Galatha et al.
patent: 4732502 (1988-03-01), Yokoi
patent: 4832306 (1989-05-01), Bossack
IBM Technical disclosure bulletin vol. 32, No. 8A. Jan. 1990; "Computer printer drive shaft and bearings".
Patent Abstracts of Japan, vol. 11, No. 281 (M-624) (2728), Sep. 11, 1987, Japanese Patent Publication 62-82062, Dated: Apr. 15, 1987, By: Mizoguchi, For: Sheet Material Feed Apparatus.
IBM, Molded gear retention device, vol. 27, No. 100, Mar. 1985.
Fujitsu Limited
Hilten John S.
Yan Ren
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