Bicycle Brake Operating Device with Magnetic Sensitivity Adjustment
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Solution Overview
Problem
Conventional electric bicycle brake operating devices lack adjustable brake sensitivity, leading to either excessively long or short brake response times, which can compromise safety.
Innovation Solution
A magnetic type brake sensitivity adjustment arrangement is introduced, utilizing a hollow threaded fastener and helical springs to adjust the distance between a magnetic member and a conductor, allowing riders to modify the brake sensitivity by loosening or tightening the fastener to increase or decrease the current generated through Faraday's law of induction, thereby optimizing the brake lamp activation time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the distance between the magnetic member and the conductor is fixed, then the device structure is simple, but the brake sensitivity cannot be adjusted
Solution Approach 1:
The patent implements adjustability by allowing the distance between the magnetic member and conductor to be dynamically changed through a threaded fastener mechanism. The hollow threaded fastener can be rotated to move the conductor closer to or farther from the magnetic member, enabling brake sensitivity adjustment while maintaining a relatively simple overall structure.
2Reliability
If the brake response time is too long, then the system is stable, but the braking performance is poor
Solution Approach 1:
The patent allows users to adjust the brake response time by changing the physical distance parameter between the magnetic member and conductor. By rotating the threaded fastener, the conductor's position is adjusted, which changes the magnetic flux linkage and thereby adjusts the brake response time to achieve optimal braking performance.
3Productivity
If the brake response time is too short, then the braking performance is improved, but the brake sensitivity cannot be optimized
Solution Approach 1:
The threaded fastener mechanism provides dynamic adjustability, allowing the system to optimize brake sensitivity by changing the distance between magnetic components. This enables the system to adapt different operating conditions and achieve optimal braking efficiency through user-adjustable parameters.
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
This solution allows for customizable brake sensitivity, enhancing safety by adjusting the brake response time to either increase or decrease the time required to activate the brake lamp, ensuring optimal braking performance.
Implementation Method 1
A rider may squeeze the brake lever 81 to move the magnetic member 83 relative to the conductor 84 so as to generate a current on the conductor 84 according to Faraday's law of induction.
Data Source
AI summary
A brake operating device for bicycles includes a hydraulic fluid cylinder secured to a housing, a parallel cylindrical member on the cylinder and comprising a hollow threaded fastener at one end, a rod in a right portion of the cylinder and having one end connected to a brake lever; a spring biased magnet in the right portion of the cylinder; a plunger interconnecting the magnet and the rod; a spring biased conductor in the cylindrical member and urged by the fastener; and an electric wire interconnecting the conductor and a connector which is connected to a brake lamp. For decreasing a turn-on time of the brake lamp a loosening of the fastener will push the conductor away from the brake lever to decrease a current generated on the conductor due to a movement of the conductor relative to the magnet. Tightening of the fastener can increase the turn-on time.