Easily adjustable bicycle derailleur system

Abstract

The invention relates to a bicycle chain pulling system convenient to adjust. The system includes a micro-control unit, a memory, a driving unit and a chain pulling device; at least three position lists are stored in the memory and contain multiple pieces of position information of the chain pulling device relative to toothed sheets, wherein multiple pieces of position information included by eachposition list are at least partially different from multiple pieces of position information included by the corresponding adjacent position list, the position lists are ranked according to the sequential order of the position information, corresponding to the same toothed sheet, of the position lists, and the position information, corresponding to the same toothed sheet, of every two adjacent position lists is differentiated by one distance value. The micro-control unit selects one position list, and the driving unit drives the chain pulling device to move to a corresponding position throughthe driving unit according to the position information of the position list.

Description

technical field [0001] The invention is related to the derailleur technology of bicycles, in particular to a conveniently adjustable bicycle derailleur system. Background technique [0002] With the popularity of bicycle riding, the requirements for self-control and fine-tuning of bicycles are getting higher and higher. The industry has proposed different forms of derailleur mechanisms and electronic control modes. For example, China Taiwan Invention Patent No. I248410 "Derailleur for bicycles "Control device and control method" is after adjusting the sprocket each time, using a memory update section to store the new speed change position after each adjustment to a memory section; China Taiwan Invention Patent No. I315280 "Electronic Relay Assisted Bicycle "Gear shift lever and related method" then use logical variable to reset a moving amount to reach the new shift position when shifting each time; China Taiwan Invention Patent No. I337964 "The speed changer and related met...

AI Technical Summary

Problems solved by technology

[0003] Since the number of shifts is based on the difficulty of riding, the higher the difficulty of riding, the more the number of shifts and the shorter the time required for shifting. In Taiwan Patent No. I315280 and US Patent No. US 6,682,087 B1, each shift Both need to be calculated internally, and US Patent No. US 8,249,782 B2 needs to move to the largest or smallest sprocket first, which is obviously difficult to meet the aforementioned requirements

In addition, although Taiwan Patent No. I248410 is easier to adjust the entire shifting mode to a specific rider, this is a technology for memorizing and setting the position of an individual derailleur. For the control of the overall derailleur position is too complicated to handle

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