| 摘要 |
<p>The pneumatic braking and/or mechanical support of printed sheets (1), at the chain delivery from a rotary printing press, has a mechanism to shift the mechanical support between parked and working positions. The pneumatic brake unit (4) has a carrier arm (7), which swings around the center axis (6.1) of the drive shaft (6). Spur wheels (7.1,7.2) are at the end of the carrier arm, moved selectively by the arm between a parked and an operating position.</p> |
