Sheet feeding or delivering – Feeding – By means to convey sheet
Patent
1996-02-05
1997-07-29
Milef, Boris
Sheet feeding or delivering
Feeding
By means to convey sheet
271245, 271253, 271254, 271268, 101232, 101410, B65H 502, B65H 904
Patent
active
056515448
ABSTRACT:
Device for avoiding registration errors at an oscillating pregripper of a sheet-processing machine includes a gripper bar deflectable in synchronism with the machine so that a respective sheet being processed therein undergoes stretching in a trailing region of the sheet. The gripper bar, in a middle region thereof, is guided and driven in a flexurally bending-resistant manner. A feeder cylinder carries thrust pads at both sides thereof for deflecting the gripper bar at the ends thereof in a sheet travel direction before a respective transfer of a sheet at the feeder cylinder, and for maintaining the deflection until sheet transfer has been completed.
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Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Lerner Herbert L.
Milef Boris
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