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:
May. 05, 2026
Filed:
Oct. 15, 2021
Sram Deutschland Gmbh, Schweinfurt, DE;
Joachim Goebel, Prosselsheim, DE;
SRAM DEUTSCHLAND GmbH, Schweinfurt, DE;
Abstract
A freewheel hub for a bicycle is presented. The freewheel hub may include a hub axle, a hub sleeve which is mounted rotatably on the hub axle, and a driver which is mounted rotatably on the hub axle and can be connected to at least one sprocket arrangement. A freewheel device may be arranged between the hub sleeve and the driver. The free wheel device may include a first clutch ring, which is coupled or couplable to the hub sleeve in a torque-transmitting manner, a second clutch ring, which is coupled or couplable to the driver in a torque-transmitting manner. The two clutch rings have mutually facing axial toothings and a preload device which is designed and arranged to preload the two clutch rings axially towards one another, wherein the preload device has a spring arrangement with at least one spring element made of a plastic with a cellular structure.