Bottom bracket gear mechanism of planetary design for a bicycle or a pedelec

US12337931B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Stefan Beck · Eriskirch, DE
• Michael Wechs · Weißensberg, DE
• Fabian Kutter · Kreßbronn, DE
• Thomas Martin · Burns Lake, CA
• Mladjan Radic · Oberdorf, DE
• Thomas Riedisser · Gettorf, DE
• Hagen Doepfert · Ruckforde, DE

Key dates

• Filing date: May 16, 2024
• Grant date: Jun 24, 2025
• Expiry date: May 16, 2044

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B62M6/50
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A bottom bracket gear mechanism for a bicycle or a pedelec includes a gear mechanism shifting group in which a second element of the first gear set is connected to a first shaft, a third element of the first gear set is connected via a fourth shaft to a second element of the second gear set, and a first element of the first gear set is connected to a fifth shaft. A first element of the second gear set is fixable via a third shaft and the second shifting element. The third shaft is connectable to the fifth shaft via the sixth shifting element. The third element of the second gear set is fixable via a second shaft and via the first shifting element. The second shaft is connectable to the first shaft via the fifth shifting element.