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Title:
PAWL ON-OFF MECHANISM FOR PAPER CONVEYING CYLINDER OF SHEET-FEED PRESS
Document Type and Number:
Japanese Patent JP3196667
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To forcibly restrain a lever with a roller and thereby eliminate a trouble with the slipping of the lever even when the roller is rotated at a high speed by attaching a cam to both lateral parts of a paper conveying cylinder to prevent a pawl shaft from being twised when the pawl is opened/closed and make the ON-OFF action of the pawl uniform.
SOLUTION: A cam is attached to both lateral parts of a paper conveying cylinder for a leaf printer consisting of an array of cylinders such as paper feed, impression, intermediate and delivery. Thus the twisting phenomenon of a pawl shaft when the pawl is opened/closed is prevented from occurring and also the ON-OFF action of the pawl is made uniform. In detail, a conjugation cam system is adopted for the paper conveying cylinder S. That is, conjugation cams 5, 5 to which rollers 9, 9 are attached through levers 4, 4 are mounted in both sides of the pawl shaft 1. As a result of the attachment of the conjugation cams 5, 5, the paper conveying cylinder S is rotated into an arrow direction from a paper feed part to be set to a paper receiving part. Thus it is possible to perform the free ON-OFF action of the pawl.


Inventors:
Kojima, Yasutaka
Sugamo, Masaaki
Application Number:
JP1996000289433
Publication Date:
August 06, 2001
Filing Date:
October 31, 1996
Export Citation:
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Assignee:
AKIYAMA INSATSUKI SEIZO KK
International Classes:
B41F21/05; B41F7/02; B41F21/10; (IPC1-7): B41F7/02; B41F21/05
Other References:
牧野洋著「自動機械機構学」(206頁)日刊工業新聞社 昭和53 12月20日 3版
Attorney, Agent or Firm:
唐木 浄治



 
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