Invention Grant
- Patent Title: Planet-type multi-stage transmission for a bicycle or pedelec
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Application No.: US17058846Application Date: 2019-04-29
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Publication No.: US11261943B2Publication Date: 2022-03-01
- Inventor: Peter Ziemer , Christoph Margraf , Thomas Riedisser , Ulrich Doerr , Kim Führer , Hagen Doepfert
- Applicant: ZF Friedrichshafen AG
- Applicant Address: DE Friedrichshafen
- Assignee: ZF Friedrichshafen AG
- Current Assignee: ZF Friedrichshafen AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Dority & Manning, P.A.
- Priority: DE102018208380.0 20180528
- International Application: PCT/EP2019/060852 WO 20190429
- International Announcement: WO2019/228726 WO 20191205
- Main IPC: F16H3/66
- IPC: F16H3/66 ; B62M11/18 ; F16H3/72

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.
Public/Granted literature
- US20210207689A1 Planet-Type Multi-Stage Transmission for a Bicycle or Pedelec Public/Granted day:2021-07-08
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