Printing – Work supporting members – Grippers
Patent
1988-01-19
1989-09-26
Eickholt, Eugene H.
Printing
Work supporting members
Grippers
271206, B41F 130
Patent
active
048691690
ABSTRACT:
A sheet transfer conveyor for rotary sheet feed printing press comprising a pair of chains which support and transport a plurality of gripper carrying trolleys which successively engage the leading edge of a sheet from a printing press cylinder, such as an impression cylinder, for removing the sheet from the cylinder and transferring it to the next printing unit or to a delivery unit. The trolleys are supported on the chains by resilient mountings which, following engagement of a sheet by the gripper, pivot the trolley under a spring biasing force to maintain substantially constant tension on the sheet throughout the period the sheet is being removed from the cylinder. Guide rails are provided which define a guide channel for guiding the trolleys into predetermined relation to the cylinder for engaging the sheet, and at such point, the guide rails are recessed to permit pivotal movement of the trolley under the biasing force of the spring mounting.
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Bergmann Marco
Rebel Herbert
Eickholt Eugene H.
M.A.N. - Roland
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