Pregripper of sheet-fed printing press

Details Pregripper of sheet-fed printing press Pregripper of sheet-fed printing press

1995-08-14

1996-11-05

Eickholt, Eugene H.

Printing

Work supporting members

Grippers

271277, B41F 2104

Patent

active

055706355

ABSTRACT:
Pregripper of a sheet-fed printing press includes a drive unit for pivotally driving a pregripper bar secured to a pregripper support device, the drive unit having main and auxiliary cam elements disposed on a drive shaft so as to be fixed against rotation relative thereto, and cam follower members cooperatively engaging with the cam elements so as to produce a movement of the pregripper bar, the pregripper support device engaging the pregripper bar approximately centrally for introducing a force to produce the pivoting movement.

REFERENCES:
patent: 2865289 (1958-12-01), Fowlie et al.
patent: 3463484 (1969-08-01), Rudolph
patent: 4101122 (1978-07-01), Jeschke et al.
patent: 4900008 (1990-02-01), Fichter et al.
patent: 5076165 (1991-12-01), Pollich
patent: 5398607 (1995-03-01), Fricke et al.

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