Typewriting machines – Including interposed inking device for record-medium – Ribbon spool or mount therefor
Patent
1998-10-15
1999-11-23
Yan, Ren
Typewriting machines
Including interposed inking device for record-medium
Ribbon spool or mount therefor
400247, B65H 7500
Patent
active
059889012
ABSTRACT:
A ribbon cassette which allows a precise recording operation to be achieved as a result of stably running an ink ribbon by preventing tilting or rattling of cores caused by tension produced in the ink ribbon during ink ribbon winding in order to stably rotate the cores; and a pancake which allows stable supply of ink ribbon by rotation of the cores. In the pancake, the cores have shaft-inserting holes, for inserting therein the supporting shafts which protrude beyond the carriage, formed in the central portion thereof, and annular grooves for fitting thereto driving power transmitting portions for transmitting rotational driving power of a take-up mechanism. The driving power transmitting portions are formed so as to protrude at the outer peripheral side of the corresponding supporting shafts.
REFERENCES:
patent: 3679039 (1972-07-01), Landgraf
patent: 4651943 (1987-03-01), Kawaguchi
patent: 4684272 (1987-08-01), Watanabe
patent: 4919555 (1990-04-01), Kikuchi
patent: 4998934 (1991-03-01), Taylor
patent: 5160205 (1992-11-01), Mistyurik
patent: 5418552 (1995-05-01), Maruyama
Alps Electric Co. ,Ltd.
Nguyen Anthony H.
Yan Ren
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