Heidelberger Druckmaschinen Ag

Dieter B&auml;cker

Ralf Weiser

Richard Burkhard Mack

Roland Hirth

A belt drive for a machine for processing flat printing materials includes an endless belt revolving during operation, a roller about which the belt is partially looped, a frame with respect to which the roller is adjustable between a working position, wherein the roller keeps the belt tensioned, and a position moved away from the working position, wherein the belt is untensioned, and a spring device for biasing the roller into the working position thereof. Also included are a double crank by which the roller is articulated with the frame, and a stop which, due to a change in position of the double crank from a position corresponding to the working position of the roller into a position corresponding to the moved-away position of the roller, is carried out to a given extent beyond a dead-center position of the double crank, prevents a change in position beyond the given extent; and a machine for processing flat printing materials, which includes the belt drive.

Growing community of inventors

Sandhausen, Germany

Dieter Bäcker

Growing community of inventors

Sandhausen, Germany

Dieter B&auml;cker

Dieter Bäcker