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. 15, 2019
Filed:
Apr. 09, 2015
Gearwheel Ab, Västerås, SE;
Nils Didner, Stockholm, SE;
Dan Åkerfeldt, Knivsta, SE;
GEARWHEEL AB, Västerås, SE;
Abstract
A wheel assembly comprising a wheel () for a wheelchair (), a gripping ring () connected to the wheel, and a gear-shift arrangement (); the wheel being provided with a wheel axle (); the gear-shift arrangement being configured to change a gear ratio between the wheel and the gripping ring; the gear-shift arrangement comprising an internal-gear hub () comprising a number of internal gears (), a shift member (), and a gear selector () located on the same side of the wheel as the gripping ring, wherein the gear selector is operatively connected to the shift member () that is axially moveable within the internal-gear hub to engage a specific gear of said number of internal gears, and that the gear selector has an inner base portion () and an outer handle portion () and extends radially away from the wheel axle.