Bicycle Shock Absorber Damping Adjustment for Pedaling Efficiency
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Solution Overview
Problem
Conventional bicycle shock absorbing devices fail to efficiently transmit pedaling force on flat or uphill roads, requiring frequent adjustments to balance comfort and efficiency, leading to increased physical strength demands.
Innovation Solution
An adjustable shock absorbing device with a control unit and transmission unit featuring a first and second shaft, and first and second bevel gears, allowing for smooth adjustment of recovery and compression damping, enabling users to conveniently switch between modes based on road conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the shock absorbing device is activated to absorb vibration on uneven roads, then rider comfort is improved, but pedaling efficiency deteriorates because the device cannot effectively transmit pedaling force on flat or uphill roads
Solution Approach 1:
The shock absorbing device incorporates adjustable damping mechanisms that allow the rider to dynamically change the device's characteristics based on road conditions. The first and second adjustment mechanisms enable real-time modification of compression and recovery damping forces, transforming a static device into a dynamic one that can adapt between vibration absorption mode and efficient power transmission mode.
Solution Approach 2:
The device allows modification of key parameters (compression damping force and recovery damping force) through the adjustment mechanisms. By changing these parameters, the device can transition from a state where it absorbs vibration to a state where it efficiently transmits pedaling force, resolving the contradiction between comfort and pedaling efficiency.
2Productivity
If the shock absorbing device is frequently adjusted to balance comfort and efficiency, then pedaling efficiency can be optimized, but ease of operation deteriorates due to the complexity of adjustments
Solution Approach 1:
The adjustment system is segmented into two independent mechanisms: a first adjustment mechanism for compression damping and a second adjustment mechanism for recovery damping. This segmentation allows the rider to adjust each damping parameter separately and independently, simplifying the adjustment process compared to a monolithic adjustment system.
Solution Approach 2:
The patent introduces adjustment mechanisms that act as intermediaries between the rider and the complex damping system. These mechanisms provide user-friendly interfaces (such as adjustment knobs or levers) that simplify the interaction with the internal damping components, making frequent adjustments more convenient.
3Productivity
If the shock absorbing device transmits pedaling force effectively on flat roads, then pedaling efficiency is improved, but vibration absorption capability deteriorates when encountering uneven roads
Solution Approach 1:
The device enables dynamic switching between two operational states: a low-damping state for efficient power transmission on flat roads and a high-damping state for vibration absorption on uneven roads. The adjustment mechanisms allow the rider to transition between these states based on real-time road conditions.
Solution Approach 2:
The shock absorbing device is designed to perform multiple functions: it can effectively transmit pedaling force on flat roads and efficiently absorb vibration on uneven roads. The adjustment mechanisms enable the device to switch between these different functions, making it a universal solution for varying road conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides stable and efficient operation by allowing users to adjust damping settings on the fly, reducing energy expenditure and enhancing pedaling efficiency across varying terrain without the need for frequent adjustments.
Implementation Method 1
The transmission unit includes a first bevel gear and a second bevel gear. When the first shaft is rotated to drives the first bevel gear, the first bevel gear drives the second bevel gear to adjust the recovery damping of the shock absorbing device.
Implementation Method 2
The conventional bicycle shock absorbing device is used to absorb vibration and shaking when riding on uneven roads to increase comfort to the riders.
Data Source
AI summary
A shock absorbing device includes a control unit and a transmission unit. The control unit includes a first shaft and a second shaft which freely and rotatably extends through the first shaft. The first end of first shaft and the first end of the second shaft protrude beyond the shock absorbing device. The transmission unit includes a first bevel gear and a second bevel gear. The second shaft freely and rotatably extends through the first bevel gear. When the first shaft is rotated to drives the first bevel gear, the first bevel gear drives the second bevel gear to adjust the recovery damping of the shock absorbing device. When the second shaft is rotated, the compression damping of the shock absorbing device is adjusted. The cooperation of the first and second bevel gears makes the operation of the shock absorbing device be smooth and stable.