B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
270/162
B65H 29/68 (2006.01) B65H 29/24 (2006.01)
Patent
CA 1325022
- 13 - Delivery sheet brake for sheet-fed printing presses ABSTRACT In the delivery sheet brake for a sheet-fed printing press, a suction element (7) - said suction element (7) gripping the sheet (1) at its rear edge - is disposed on an adjustable slide (9) for format adjustment and is guided in its motion on a closed path loop extending through a transfer position and a release position for the sheet (1). Said suction element (7) is connected to a uniformly revolving drive element, disposed likewise on the slide (9), by a four-joint step-up gear unit, so that the suction element (7) is accelerated to sheet speed before the transfer position and is decelerated after sheet transfer up to the release position for the sheet. A chain wheel (18), forming the drive element, on the adjustable slide and a chain wheel (20) of the printing-press drive are directly connected to one another by a drive chain (19), with said drive chain (19) passing through a chain-storage device (21), said chain-storage device (21) compensating for changes in length of the drive chain (19) without phase displacement of the chain wheels (18, 20). Figure 1
611480
Filsinger Karl-Heinz
Hirth Roland
Spiegel Nikolaus
Filsinger Karl-Heinz
Heidelberger Druckmaschinen Aktiengesellschaft
Hirth Roland
Johnson Douglas S. Q.c.
Spiegel Nikolaus
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