The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2017
Filed:
Apr. 21, 2016
Heidelberger Druckmaschinen Ag, Heidelberg, DE;
Juergen Rothaug, Nussloch, DE;
Arno Juenger, Walldorf, DE;
Albert Maul, Heidelberg, DE;
Sven Goll, Heidelberg, DE;
Thomas Schmidt, Heidelberg, DE;
Alexander Knabe, Heidelberg, DE;
Daniel Conzelmann, Dielheim, DE;
Wolfgang Dolz, Heidelberg, DE;
Kai Oskar Mueller, Birkenau, DE;
Raimund Schroeder, Hockenheim, DE;
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
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.