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

US12296919B2 · kind B2 · utility

Assignee

• 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: May 13, 2025
• Expiry date: May 16, 2044

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2200/2071
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A bottom bracket planetary gear mechanism for a bicycle or a pedelec includes a gear mechanism shifting group having first and second planetary gear sets and first, second, and fifth shifting elements. A second element of the first gear set is connected to a first shaft, a first element of the first gear set is connected via a fourth shaft to a first element of the second gear set, and a third element of the first gear set is fixable via a second shaft and a first shifting element. The third element of the first gear set is connected via the second shaft to a second element of the second gear set. A third element of the second gear set is fixable via a third shaft and a second shifting element. A fifth shifting element blocks the first and second gear sets.