Tape taking-up mechanism

Details Tape taking-up mechanism Tape taking-up mechanism

1993-12-22

1995-03-21

Burr, Edgar S.

Typewriting machines

Including interposed inking device for record-medium

Ribbon-feeding mechanism

400234, 4002362, B41J 3324

Patent

active

053990366

ABSTRACT:
A first power transmitting shaft is fitted to a second power transmitting shaft in such a manner as to be freely rotated independently of each other, The first power transmitting shaft is applied to a cartridge provided with a wide ribbon taking-up spool while the second power transmitting shaft 56 is applied to a cartridge provided with a narrow ribbon taking-up spool. First engaging portions engage with the locking grooves formed near the tip end on the inner circumference of the wide ribbon taking-up spool and are disposed on the outer periphery at the tip end of the first power transmitting shaft while second engaging portions engage with the locking grooves formed near the base end on the inner circumference of the narrow ribbon taking-up spool and are disposed on the outer periphery at the tip end of the second power transmitting shaft. Clutch springs are wound around the first power transmitting shaft and the second power transmitting shaft, respectively, for generating adequate slide torque.

REFERENCES:
patent: 4231667 (1980-11-01), Behreudt et al.
patent: 4440514 (1984-04-01), Keiter et al.
patent: 4611937 (1986-09-01), Sato et al.
patent: 4927278 (1990-05-01), Kuzuya et al.
patent: 4966476 (1990-10-01), Kuzuya et al.
Japan Abstracts, vol. 11, No. 135 (M-585) (2582) Apr. 28, 1987, JP-61-274975.
Japan Abstracts, vol. 8, No. 201 (M-325) (1638) Sep. 14, 1984, JP-59-091087.

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