Photocopying – Projection printing and copying cameras – Detailed holder for original
Patent
1982-09-03
1984-02-07
Hayes, Monroe H.
Photocopying
Projection printing and copying cameras
Detailed holder for original
G03B 2762
Patent
active
044299893
ABSTRACT:
The present invention relates to apparatus for pressing an original useful for an image forming apparatus such as a copying machine, printer or recording apparatus. More particularly, the present invention is directed to such original pressing apparatus which is able to press even a thick original and which can be opened and closed not only automatically but also manually. The original pressing apparatus of the invention comprises an original pressing member, a supporting member for supporting said pressing member swing movably, an arm engageable with said pressing member for automatic opening and closing of said pressing member, a driving source to rotate said arm and means for rendering said arm free movable when the original pressing member is not in automatic opening and closing operation. Thus, the original pressing member can be opened and closed manually when it is not in automatic opening and closing operation. Another aspect of the invention is an original pressing apparatus comprising an original pressing member, a supporting member of supporting said pressing member up and down movably and also swing movably, an arm having a rotation axis in the vicinity of the rotation axis of said supporting member and disposed to automatically open and close said pressing member and a driving source for rotating said arm. The engaging point at which the arm and the pressing member get engaged with each other lies within the area where the straight line extending through the gravity center of the pressing member and a point adjacent one side end of the supporting member intersects the straight line extending through said gravity center and a point adjacent the other side end of the supporting member.
REFERENCES:
patent: 3467469 (1969-09-01), Hastings et al.
patent: 3724949 (1973-04-01), Kanno et al.
patent: 4124296 (1978-11-01), Kishi et al.
patent: 4150896 (1979-04-01), Wakeman
patent: 4172660 (1979-10-01), Yanofsky et al.
patent: 4210358 (1980-07-01), Sweet et al.
Ichikama Kiyomichi
Ueda Noriyoshi
Yoshimura Shigeru
Canon Kabushiki Kaisha
Hayes Monroe H.
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