BACK TENSION MECHANISM IN CONTINUOUS PAPER PRINTING APPARATUS

PURPOSE:To receive an ink film even when a receiving space is small and to obtain proper tension by applying back tension to an ink film drum by an elastic member when an ink film is drawn out. CONSTITUTION:A disc-shaped friction member 20 having the friction surface brought into contact with the ci...

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Bibliographic Details
Main Author TANAKA KUNIYUKI
Format Patent
LanguageEnglish
Published 05.03.1991
Subjects
CORRECTION OF TYPOGRAPHICAL ERRORS
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:PURPOSE:To receive an ink film even when a receiving space is small and to obtain proper tension by applying back tension to an ink film drum by an elastic member when an ink film is drawn out. CONSTITUTION:A disc-shaped friction member 20 having the friction surface brought into contact with the circumferential part of a gear 19 is fixedly mounted to the surface of the gear 19 on the other end side thereof by a support member 22. The support member 22 is pressed by the elastic member 21 fixedly mounted to an apparatus fixing member 50. Therefore, the support member 22 is pressed to the gear 19 by the elastic member 21 to develop back tension function acting so as to prevent the slackening of the ink film 39 fed at the time of printing output by the elastic member 21. By this method, even when a receiving space is small, the ink film can be received and proper back tension can be applied to said film.
Bibliography:Application Number: JP19890185873