Heidelberger Druckmaschinen Ag

Juergen Rothaug

Thomas Schmidt

Christian Hieb

Oliver Koch

Alexander Knabe

Daniel Conzelmann

Wolfgang Schönberger

Wolfgang Dolz

Albert Maul

Kai Oskar Mueller

Rolf Müller

Arno Juenger

Raimund Schroeder

Sven Goll

Kai Oskar Müller

A sheet-transporting drum includes sheet-supporting areas each being formed of a first comb segment and a second comb segment having segment teeth. At least one of the comb segments is rotatable for adaptation to a sheet format. A mechanical leading-edge gripper is provided on the first comb segment and a pneumatic trailing-edge gripper is provided on the second comb segment. A mechanical trailing-edge gripper is additionally disposed on the second comb segment and is deactivatable in particular by format adjustments. This advantageously allows either the trailing edge of a sheet to be securely held down mechanically or a full-bleed print to be applied to the sheet when the trailing edge of the sheet is held down pneumatically. A sheet-fed printing machine is also provided.

Sheet-transporting drum and printing machine having the sheet-transporting drum

A bearing for a shaft of a printing technology machine includes a bearing housing composed of an upper part and a lower part. The bearing housing has a bore for receiving a rolling-contact bearing for the shaft. The upper part and the lower part are separated by an interstice disposed in the region of the bore. The rolling-contact bearing is an axial bearing including at least one rolling body cage and at least one race washer having an annular shape. The race washer is clamped between the upper part and the lower part, which both exert a radial pressure on an outer circumferential surface of the race washer.

Bearing for a shaft of a printing technology machine

Growing community of inventors

Nussloch, Germany

Juergen Rothaug