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:
Aug. 14, 1990
Filed:
Jul. 06, 1989
Eduard Bergles, Graz, AT;
Fichtel & Sachs AG, Schweinfurt, DE;
Abstract
A multispeed bicycle hub is controlled by two speed change rods extending within a bore of the hub shaft towards one end of this bore. An operating mechanism is fixed on the respective end of the hub shaft. This operating mechanism comprises two cam discs acting onto the speed change rods. The cam discs are rotated by a transmission cable from a speed change switch. The cam discs are rotatable about a common cam disc axis by the transmission cable. The cam discs are provided with respective cam tracks which are located adjacent each other in the axial direction of the cam pivot axis. The circumferential extension of the cam tracks is substantially coextensive about the cam pivot axis. The cam tracks act upon respective intermediate levers which intermediate levers are in engagement with the speed change rods.