Patent · US Active

Crank transmission with a crankshaft for connection to at least one foot-operated or hand-operated crank

US12123795B2 · kind B2 · utility

0Cited by

3References

6Claims

0Family size

Assignees

MARQUARDT GMBH · DE
Pinion GmbH · DE

Inventors

Michael Schmitz · Ulm, DE
Christoph Lermen · Tholey, DE
Dietmar Weisser · Tuttlingen, DE
Martin Gotz

Key dates

Filing date	Mar 25, 2021
Grant date	Oct 22, 2024
Priority date	—
Expiry date	Jan 15, 2043

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/2165
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A crank transmission having a crankshaft for connection to at least one foot or hand crank and at least one gear wheel driven by means of the crankshaft (5) is proposed. A coupling unit is provided between the crankshaft and the gear wheel. Under load, the coupling unit has at least temporarily an angular offset between a crank-side receiving region and an output region connected to the gear wheel for receiving and outputting the torque generated via the crank.

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