Derailleur assembly and shifting-state detecting method thereof

Abstract

The invention discloses a derailleur assembly and a method for detecting the shifting state thereof. The derailleur assembly includes a fixed member, a movable member, a first connecting rod, a secondconnecting rod, a chain guiding member, and a sensing member. The fixed member is fixed to a frame. The two different positions of the first connecting rod and the second connecting rod are respectively pivoted to the fixed member and the movable member. The chain guiding member is pivotally connected to the movable member. The sensing member is configured to sense an angle of the chain guiding member relative to the movable member. The detection method includes the following steps: obtaining the reference angle data; performing a shifting operation to move the movable member; sensing the angle of the chain guiding member relative to the movable member to obtain shifting angle data; and comparing the reference angle data and the shifting angle data to determine whether the chain guiding member completes shifting.

Description

technical field [0001] The present invention relates to a transmission assembly and a method for detecting its shifting state, in particular to a transmission assembly with a sensing component and a method for detecting its shifting state. Background technique [0002] In recent years, the bicycle market has been booming. Whether it is a racing high-end bicycle, a commuting road bicycle, or a recreational bicycle, they are all favored by consumers. In general, a derailleur can be configured on a bicycle. The transmission may have a flywheel formed from a plurality of chain rings of differing tooth numbers. The bicycle can move the chain to a chainring with different numbers of teeth according to the terrain and user needs to match different gear ratios. The speed changer includes a front derailleur and a rear derailleur, wherein the rear derailleur can be arranged on the frame of the bicycle to control the position where the chain is hung on the flywheel. Depending on the...

AI Technical Summary

Problems solved by technology

However, during the chain switching process of the transmission, sometimes due to the vibration of the vehicle body or external impact, the angle of the four-linkage of the transmission has changed, but the chain has not switched to the target position.

What's more, when the angle of the four-linkage of the transmission has been changed and the chain has been switched to the target position first, the chain jumps away immediately, resulting in a situation where the chain switching fails in essence

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