Device for controlling grippers in sheet-fed rotary presses

Details Device for controlling grippers in sheet-fed rotary presses Device for controlling grippers in sheet-fed rotary presses

1986-03-10

1988-07-26

Burr, Edgar S.

Printing

Flexible-sheet-securing devices

101409, B41F 130

Patent

active

047592907

ABSTRACT:
A device for controlling the opening of a plurality of sheet grippers in a sheet-fed rotary press wherein the grippers are arranged to form a row on a gripper shaft disposed on a rotating cylinder. The gripper shaft is centrally controlled between its ends by two cam control systems acting in parallel relationship on the ends of an actuating shaft, by turning of the latter, with a central adjusting means interconnecting the actuating shaft and the gripper shaft to provide a symmetrically divided torsional force adjustable to vary the opening width of the grippers according to the sheet thickness being processed.

REFERENCES:
patent: 1628960 (1927-05-01), English et al.
patent: 3125022 (1964-03-01), Reinartz et al.
patent: 3414259 (1968-12-01), Koch et al.
patent: 4120244 (1978-10-01), Wirz
patent: 4133263 (1979-01-01), Schilling
patent: 4210079 (1980-07-01), Raes
patent: 4402266 (1983-09-01), Sugiyama
patent: 4475459 (1984-10-01), Wanke et al.

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