Drive mechanism for axially reciprocating the intermediate rolle

Details Drive mechanism for axially reciprocating the intermediate rolle Drive mechanism for axially reciprocating the intermediate rolle

1990-03-12

1991-07-02

Fisher, J. Reed

Printing

Planographic

Dampeners

101349, 101DIG38, B41F 740, B41F 3130, B41L 2732

Patent

active

050277049

ABSTRACT:
To provide a drive mechanism for axially reciprocating the first roller or the first and second roller of an intermediate roller pair adapted to be selectively associated with the first ink spreader roller of an inking unit or with the final applicator roller of a damping unit of a combined damping and inking unit of an offset printing press, a stroke coupling for the spindle of the first intermediate roller with the first ink spreader roller is provided. This stroke coupling is transmitted to the spindle of the second intermediate roller only when both intermediate rollers are in engagement with the damping roller, whereas in the position in which the second intermediate roller interconnects the damping unit and the inking unit, the spindle of the latter roller is secured axially and separated from the stroke coupling.

REFERENCES:
patent: 4385559 (1983-05-01), Jarach
patent: 4458592 (1984-07-01), Junghans
patent: 4620481 (1986-11-01), Steiner

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