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Transmission for a bicycle

A technology for transmissions and bicycles, applied in the field of transmissions, can solve the problems of complex construction of transmissions and high cost of assembly of transmissions, and achieve the effects of simplified accessibility, good efficiency, and simple structure

Inactive Publication Date: 2019-07-30
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transmission has a total of seven gear planes, which comprise several multi-stage planetary elements, so that the construction of the transmission is complex and the assembly of the transmission is therefore very expensive

Method used

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  • Transmission for a bicycle
  • Transmission for a bicycle
  • Transmission for a bicycle

Examples

Experimental program
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Effect test

Embodiment Construction

[0039] figure 1 A transmission according to the invention is shown according to a first embodiment, which is rotationally symmetrical with respect to the center axle crankshaft 2 . exist figure 1 Only the upper half of the transmission is shown.

[0040] The transmission has a drive shaft 1 , which is connected in a rotationally fixed manner to a bottom bracket crankshaft 2 . In addition, the transmission has a first planetary set PS1 operatively connected to the drive shaft 1 and a second planetary set PS2 . The planetary carrier of the first planetary set PS1 is connected in a rotationally fixed manner to the planetary carrier of the second planetary set PS2 . In particular, the planetary carrier of the first planetary set PS1 and the planetary carrier of the second planetary set PS2 are embodied in one piece, ie as a common component.

[0041] In this case, the first planetary group PS1 is implemented as a positive planetary group and the second planetary group as a neg...

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PUM

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Abstract

The invention relates to a transmission for a bicycle, having at least four switching elements, a drive shaft (1), a first planetary gear set (PS1), which is operatively connected to the drive shaft (1), and a second planetary gear set (PS2). The transmission is characterized in that a planet carrier of the first planetary gear set is rotationally fixed to a planet carrier of the second planetarygear set (PS2).

Description

technical field [0001] The invention relates to a transmission for a bicycle having at least four shift elements, a drive shaft, a first planetary set operatively connected to the drive shaft, and a second planetary set. [0002] Furthermore, the invention relates to a center axle with such a transmission. In addition, the invention relates to a bicycle with the derailleur or the bottom bracket. Background technique [0003] Various transmissions are known from the prior art. Thus, for example, a transmission is known from US 2011 177 911 A1, which has three successive planetary gears with an increasing gear ratio. The transmission has a total of seven gear planes, which include a multiplicity of multi-stage planets, so that the construction of the transmission is complex and the assembly of the transmission is therefore very expensive. Contents of the invention [0004] The object of the present invention is therefore to provide a transmission which is simple in constr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M6/55B62M11/14B62M11/18
CPCB62M6/55B62M11/145B62M11/18F16H2200/2087F16H3/666F16H2200/0043F16H2200/006F16H2200/2007F16H2200/201F16H2200/2041F16H2200/2046F16H2200/2071B60K2006/4816B60K6/48Y02T10/62F16H3/66
Inventor 约翰尼斯·卡尔滕巴赫瓦莱里·恩格伦乌韦·格里斯迈尔马蒂亚斯·尼奇米夏埃尔·韦克斯延斯·莫拉夫格哈德·尼德布鲁克
Owner ZF FRIEDRICHSHAFEN AG
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