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Bicycle rear wheel pinion arrangement and modular system for producing bicycle rear wheel pinion arrangement

A technology for pinion gears and bicycles, applied to belts/chains/gears, transmissions, vehicle components, etc., can solve problems such as high cost, high manufacturing cost, and difficulty

Pending Publication Date: 2021-08-24
SRAM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pinion sets milled from a solid body require increasingly more difficult and thus costly manufacturing steps, whereas pinion sets with multiple pins or rivets arranged in a row are mainly due to the associated The tolerance chain leads to higher and higher manufacturing costs

Method used

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  • Bicycle rear wheel pinion arrangement and modular system for producing bicycle rear wheel pinion arrangement
  • Bicycle rear wheel pinion arrangement and modular system for producing bicycle rear wheel pinion arrangement
  • Bicycle rear wheel pinion arrangement and modular system for producing bicycle rear wheel pinion arrangement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] figure 1 Shown is a mountain bike with a single speed drive train. Apart from the pinion flywheel 1 , the chain 2 and the shift mechanism 3 , the drive train has only a single chainring 4 . As mentioned at the beginning of this article, the drive train is thus simplified in terms of manufacturing difficulty, installation difficulty and setting difficulty, as well as weight and shifting operations for the rider.

[0059] In this case, the transmission ratio range lost due to the omission of other chainrings with a different number of teeth must be compensated by correspondingly expanding the transmission ratio range of the pinion flywheel 1 .

[0060] This is achieved in particular in that the pinion flywheel 1 has several extremely large pinions on the inside. inner equivalent figure 1 The back side of the small and medium gear flywheel 1. It can be seen that the largest pinion of the pinion freewheel 1 has a significantly larger diameter and thus has a much larger ...

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PUM

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Abstract

The invention relates to a bicycle rear wheel pinion arrangement, having a carrier pinion and a self-supporting pinion set which is connected to the carrier pinion on the outside in the connection region of the carrier pinion, and a modular system for producing different bicycle rear wheel pinion arrangement or pinion flywheels. The pinion arrangement comprises a plurality of further pinions designed as pinion rings, wherein the pinion rings are arranged on the carrier pinion in the connection region and are connected to the carrier pinion.

Description

technical field [0001] The present invention relates to a pinion arrangement for a bicycle rear wheel and a modular system for producing a bicycle rear wheel pinion arrangement. Background technique [0002] The same type of rear wheel pinion arrangement is also simply and synonymously referred to in the bicycle industry and in the description below as a pinion freewheel or freewheel, which on a bicycle forms part of the drive train used to Transfers drive power from the chainring on the bottom bracket of the bike to the rear wheel. [0003] Positional or directional designations, such as "left", "right", "front", "rear", "up", "down", etc., as applied in the description below, correspond to the perspective of the rider on the bicycle. The same is true for the industry-conventional directional specifications "inboard" (left or left) and "outboard" (right or right) used in the description, which refer specifically to the shifting process or pinion position on the flywheel. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M9/10
CPCB62M9/10B62M9/12F16H7/00
Inventor 安德烈斯·凡奈德贾库柏·罗麦
Owner SRAM