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:
Jan. 30, 1990
Filed:
Feb. 24, 1988
Gerd Nolte, Senden, DE;
Erich Steppe, Ulm, DE;
Mannesmann AG, Dusseldorf, DE;
Abstract
A device for a paper transport in an office machine, in particular in a matrix printer, presupposes the presence of side plates (1, 2), wherein a print-support surface (7) is supported and, in addition, a friction drive including a roller pair for individual sheets (9) to be transported or, respectively, endless webs (10) without edge perforation, and tractors (13) provided in pairs, which operate in push and pull operation. In order to provide a universal paper transport device for different kinds of paper, where the respective paper type is held ready, it is disclosed that the tractor pair (14a, 14b) can be driven with a tractor gear wheel (21) fixed against rotation on the tractor shaft (17), which tractor gear wheel (21) can be put in a force-transmitting connection with the paper drive motor (22) and where the tractor pair (14a, 14b) can be tilted with a lever drive (31) relative to the paper guide plane (32) in each case into an about tangential direction (33 ) relative to the circumferential upper side (36) or to the circumferential lower side (34) of the print-support surface (7).