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:
Nov. 24, 2009
Filed:
Mar. 07, 2006
Frank Stübner, Ernstroda, DE;
Dirk Bald, Gotha, DE;
Frank Stübner, Ernstroda, DE;
Dirk Bald, Gotha, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A drive unit for a floor trolley, with at least one steered wheel (), which is attached to a vehicle chassis () so that it can swivel about an essentially vertical swivel axis (), a drive motor () with a drive shaft () being arranged coaxially with the swivel axis (). The motor is in driving connection with the at least one wheel () via a gear system (). The drive motor () and the gear system () are mounted in a common housing (), consisting essentially of two separate housing portions, namely, a lower and an upper housing (portion), that can be joined together by a fastening mechanism (), and is mounted to rotate on the chassis () via at least one roller bearing (). A drive unit is provided that at least one of the two housing portions () is associated with a drawbar connection () formed integrally therewith by way of the housing () being swiveled relative to the chassis () about the swivel axis ().