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. 09, 2007
Filed:
Jul. 14, 2005
Sverker Alfredsson, Västra Frölunda, SE;
Sverker Alfredsson, Västra Frölunda, SE;
Volvo Lastvagnar AB, Göteborg, SE;
Abstract
Method and arrangement for providing a range gearbox with planetary gear () for motor vehicles, intended to be connected to the output side of a basic gearbox. The ring gear () of the planetary gear is axially displaceable. The ring gear () can engage coupling rings () alternatively. A synchronizing means () is intended to synchronize the rotational speed difference between the ring gear () and at least the coupling ring (). The synchronizing means () and the coupling ring () are arranged coaxially outside the ring gear (). A second means () for engaging the coupling ring () and a third means () for driving the synchronizing means () are arranged on the external side, seen radially, of the ring gear (), and the synchronizing means () is arranged between the coupling ring () and the first means () for axial displacement of the ring gear ().