Gripper control device in a chain delivery of a sheet-fed printi

Details Gripper control device in a chain delivery of a sheet-fed printi Gripper control device in a chain delivery of a sheet-fed printi

1993-03-22

1994-03-29

Skaggs, H. Grant

Sheet feeding or delivering

Delivering

By endless conveyor

271277, 1984701, B65H 2904

Patent

active

052977889

ABSTRACT:
Gripper control device in a chain delivery of a sheet-fed printing press, wherein a cam segment has a control cam for a control roller provided on a gripper system and is adjustably disposed for opening a gripper of the gripper system as a sheet is delivered, the control cam being formed with a rectilinear on-running region aligned for rectilinear movement of the control roller in a given direction, includes an adjusting element operatively engageable with the cam segment for effecting a phase displacement of the gripper between a closed and an open condition thereof, the control cam of the cam segment, in an inactive basic position thereof, being aligned, with the on-running region thereof parallel to the given direction of rectilinear movement of the control roller for the gripper system, in an imaginary plane tangent to the control roller at a location on the circumference thereof most distal from the gripper of the gripper system, and a cam roller rotatably mounted on the cam segment, the adjusting element having a rotatably mounted control cam in operative engagement with the rotatably mounted cam roller.

REFERENCES:
patent: 3109644 (1963-11-01), Reinartz
patent: 3610579 (1971-10-01), Jiruse
patent: 3703281 (1972-05-01), Liebert et al.
patent: 4205606 (1980-06-01), Jiruse
patent: 4582316 (1986-04-01), Wirz

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