Planet-type multi-stage transmission for a bicycle or pedelec

US11261943B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Peter Ziemer · Tettnang, DE
• Christoph Margraf · Markdorf, DE
• Thomas Riedisser · Gettorf, DE
• Ulrich Doerr · Konstanz, DE
• Kim Führer · Gettorf, DE
• Hagen Doepfert · Ruckforde, DE

Key dates

• Filing date: Apr 29, 2019
• Grant date: Mar 1, 2022
• Expiry date: Apr 29, 2039

Classification

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

Abstract

A multi-stage planetary transmission for a bicycle or a pedelec includes a transmission input shaft (1), a transmission output shaft (2), and at least three planetary gear sets (VRS, VR1, VR2, RS1, RS2, NRS, NR1, NR2). A first planetary gear set (RS1) and a second planetary gear set (RS2) are configured as a main gear set and at least one further planetary gear set (VRS, VR1, VR2, NRS, NR1, NR2) is configured as a front-mounted gear set and/or as a rear-mounted gear set. At least three free-wheel clutches (F1, F2, F3, F4) and at least three brakes (B1, B2, B3, B4) are provided for implementing at least eight gears (G1, G2, G3, G4, G5, G6, G7, G8, G9, G10, G11, G12, G13, G14, G15, G16). Moreover, the multi-stage transmission may be a bottom bracket transmission. In addition, a bicycle or pedelec with the multi-stage transmission is proposed.