Printing – Multicolor – Rotary machines
Patent
1983-02-04
1984-04-17
Fisher, J. Reed
Printing
Multicolor
Rotary machines
101180, 101182, 101218, B41F 506, B41F 712, B41F 1336
Patent
active
044427735
ABSTRACT:
In an offset rotary printing press which is equipped with a pair of blanket cylinders which can be shifted between two ultimate positions, in which one is a blanket to blanket type printing mode with four series-contacting cylinders exclusive of an impression cylinder and the other is a satellite type printing mode with five series-contacting cylinders including the impression cylinder, the blanket cylinders can be shifted between the two ultimate positions via two intermediate throw-off positions by three strokes of an actuator with switching by a clutch.
The amount of displacement of each of the blanket cylinders between the two ultimate positions exceeds the tooth height of driving gears for the blanket cylinders and the cylinders contacting with said blanket cylinders.
In the two intermediate throw-off positions a first intermediate throw-off position is provided close to a first ultimate position and a second intermediate throw-off position is provided close to a second ultimate position, and each gearing at the intermediate throw-off positions keeps within each gear train in the ultimate position thereto.
REFERENCES:
patent: 3329086 (1967-07-01), Pullen
patent: 4218972 (1980-08-01), Fujishiro
patent: 4281595 (1981-08-01), Fujishiro
Fisher J. Reed
Kabushiki Kaisha Tokyo Kikai Seisakusho
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