Printing – Multicolor – Rotary machines
Patent
1986-04-08
1987-06-09
Pearson, Charles A.
Printing
Multicolor
Rotary machines
101183, 101136, 101142, B41F 702
Patent
active
046711767
ABSTRACT:
An operation lever controller for a two-color printing apparatus having first and second units adapted to perform printing independently of each other and arranged such that all steps of respective printing operations are performed by rotating respective operation levers in multiple stages. The operation levers, ratchet wheels, set cams for changing and positioning the operation levers in respective multiple stages and arms provided with respective magnets are fixed on corresponding drive shafts of the first and second units. Pairs of feed pallets are respectively provided on unit frames so as to be linked with forward-drive solenoids, backward-drive solenoids, and pallet-drive shafts such that the respective pairs of feed pallets are disengaged and engaged with the ratchet wheels by operations of the solenoids to perform feeding operations using the pallet-drive shafts. Operation lever detecting switches are turned on by the magents at respective positions of the operation levers.
REFERENCES:
patent: 2845860 (1958-08-01), Mestre
patent: 3731624 (1973-05-01), Kaneko et al.
patent: 3956985 (1976-05-01), Ishii
patent: 4434716 (1984-03-01), Ishii et al.
patent: 4475456 (1984-10-01), Ishii et al.
Domoto Hideki
Kimura Takashi
Pearson Charles A.
Ryobi Ltd.
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