Device for adjusting gripper timing at sheet deliveries

Details Device for adjusting gripper timing at sheet deliveries Device for adjusting gripper timing at sheet deliveries

1994-10-19

1995-05-16

Skaggs, H. Grant

Sheet feeding or delivering

Feeding

By means to convey sheet

1988037, 198364, B65H 502

Patent

active

054153921

ABSTRACT:
A device for adjusting the release point of the timing of a gripper release in a sheet delivery of a sheet-processing machine, such as a printing machine, is disclosed. A gripper system is driven along a given travel path. The gripper system has gripper fingers for clamping a paper sheet, entraining the paper sheet along the given travel path and releasing the paper sheet at a predetermined position. A landing body with a cam surface is disposed at a stationary support structure and it is operatively associated with a member for releasing the paper sheet which travels with the grippers. The landing body is shiftable on a displacement track for the purpose of adjusting the timing of the paper release. The displacement track has a shape which is adapted to a geometric course of the given travel path of the gripper system.

REFERENCES:
patent: 3837474 (1974-09-01), Brooke
patent: 4522293 (1985-06-01), van Kattenbroek
patent: 4569444 (1986-02-01), McEvoy et al.
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patent: 4905986 (1990-03-01), Muller
patent: 4953847 (1990-09-01), Honeggar
patent: 5007629 (1991-04-01), Eberle et al.
patent: 5168977 (1992-12-01), van Essen et al.

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