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:
Jun. 23, 1992
Filed:
Feb. 19, 1991
Reinhard Hehner, Haan, DE;
Hans-Dieter Olthaus, Dusseldorf, DE;
Jagenberg Aktiengesellschaft, Dusseldorf, DE;
Abstract
A mechanism for tensioning and positioning reel cores, especially in machines for winding and unwinding webs of paper and cardboard, having a cylindrical eccentric tensioning component (10) that is mounted on a journal rigidly connected to a driveshaft or brake shaft, that expands radially when its circumference moves relative to the journal, and that interlocks with the core by way of elevations distributed around its outside circumference. A cylindrical positioning head with a smooth surface is concentrically connected to the driveshaft or brake shaft and is followed by the tensioning component. The diameter of the positioning head equals the inside diameter of the core. The tensioning component is axially shorter than the positioning head. The outside diameter of the unexpanded tensioning component is slightly longer than the outside diameter of the positioning head and is concentric with it.