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. 12, 2002
Filed:
Jun. 14, 2000
Werner Steuer, Schweinfurt, DE;
Michael Kohaupt, Schweinfurt, DE;
SRAM Deutschland GmbH, Schweinfurt, DE;
Abstract
A shifting device for a multi-speed hub for a bicycle that, comprises a hub axle, a driver, a hub sleeve and an epicyclical transmission with an annulus, a plant carrier, planet wheels and a sun wheel, a control device for changing the gear ratios between the multi-speed hub and a remote control. The gear change is executed exclusively by the lifting out or engagement of pawls which can be controlled by means of a shift unit. The shift sleeve and bushing have projections and gaps and can slide under a respective foot of the pawl thereby enabling the pawls to be forcibly disengaged. An advantage of the invention is the ability to disengage the respective pawl even under load without the need to employ relatively large control forces by means of the remote control.