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:
Mar. 02, 2010
Filed:
Sep. 04, 2004
Josef Bader, Friedrichshafen, DE;
Josef Bader, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A variable-speed gearbox comprises a main transmission () arranged in a housing () and a downstream range-change transmission (), the range-change transmission having power distribution on two countershafts (). On a main shaft () of the main transmission (), a gear wheel () is arranged in a radially movable manner which meshes with respective first gear wheels () each on one of the countershafts. In the housing of the variable-speed gearbox, a drive output shaft () is radially and axially fixed which is connected a gear wheel () that meshes in each case with a second gear wheel (), respectively, on each of the countershafts. The gear wheel on the main shaft that meshes with the first gear wheels on the countershafts is maintained in its axial position relative to the drive output shaft by way of pressure combs ().