Patent · US Active

Planetary-type bottom-bracket transmission for a bicycle or a pedelec

US12428105B2 · kind B2 · utility

0Cited by

2References

13Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Stefan Beck · Eriskirch, DE
Michael Wechs · Weißensberg, DE
Fabian Kutter · Kreßbronn, DE
Thomas Martin · Burns Lake, CA
Thomas Riedisser · Gettorf, DE

Key dates

Filing date	Nov 12, 2024
Grant date	Sep 30, 2025
Priority date	—
Expiry date	Nov 12, 2044

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2200/2084
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A planetary-type bottom-bracket transmission for a bicycle or a pedelec includes a pedal crank shaft, a transmission output shaft, further shafts, and a first transmission shift group and a second transmission shift group. The first transmission shift group and the second transmission shift group are coupled to each other for implementing a plurality of gear ratios. The first transmission shift group includes a two-step stepped planetary gear set that is assigned a first shifting element, a second shifting element and a fifth shifting element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.