Gear set assembly and bicycle gearing system

US12291304B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Peter Ziemer · Tettnang, DE
• Thomas Riedisser · Gettorf, DE
• Hagen Doepfert · Ruckforde, DE
• Ulrich Doerr · Konstanz, DE
• Christoph Margraf · Markdorf, DE
• Reinhard Deppert · Gochsheim, DE
• Uwe Schraff · Markdorf, DE
• Sebastian Grimm · Weil der Stadt, DE
• Markus Strobel · Hersbruck, DE
• Harald Tiesler · Oberuhldingen, DE
• Matthias List · Dresden, DE
• Rainer Grundler · Espasingen, DE
• Ingo Lippenberger · Weingarten, DE

Key dates

• Filing date: Jul 27, 2022
• Grant date: May 6, 2025
• Expiry date: Jul 27, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2200/2089
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A gear set arrangement (10) for a bicycle gearbox (400) includes a planetary assembly, a stationary component (24), a first and a second brake (B1, B2), and a first and a second freewheel clutch (F1, F2). One planetary gear set (12) of the planetary assembly includes a first rotary element, a second rotary element, and a third rotary element. The first rotary element is rotationally fixable on the stationary component (24) by the first brake (B1). The first rotary element is connectable to the output (36) by the first freewheel clutch (F1). The second rotary element is rotationally fixable on the stationary component (24) by the second brake (B2). The second rotary element is connectable to the output (36) by the second freewheel clutch (F2). The third rotary element is connected to the input (34) for conjoint rotation. The gear set arrangement (10) is configured to provide three ratios.