Composite Resistance Module for Non-Motorized Treadmill
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Solution Overview
Problem
Conventional non-motorized treadmills with single resistance sources, such as magnetic reluctance, fail to provide sufficient resistance for high-load training and can lead to durability issues with elastic members.
Innovation Solution
A composite resistance module combining magnetic and wind resistance using a reluctance module with a metal member, a fan wheel, and an adjustable mechanism to provide varying resistance levels, including frictional resistance for braking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a single magnetic resistance source is used in the non-motorized treadmill, then the device structure is simple and cost-effective, but the resistance capability is insufficient for high-load training requirements
Solution Approach 1:
The patent combines multiple resistance sources (magnetic resistance from reluctance module and wind resistance from fan wheel) into a single composite resistance module. This merging approach provides sufficient resistance for high-load training while maintaining structural integration and avoiding excessive complexity
Solution Approach 2:
The resistance module uses composite resistance mechanisms combining magnetic field interaction and aerodynamic drag. The wheel body includes both magnetic members and metal members (aluminum ring), creating a composite structure that generates multiple resistance types simultaneously
2Ease of operation
If the magnetic resistance is positioned away from the flywheel to reduce resistance, then the treadmill operation is easier, but the resistance becomes too small for effective training
Solution Approach 1:
By combining magnetic resistance and wind resistance in the composite module, the system maintains adequate total resistance even when magnetic resistance is positioned away from the flywheel. The wind resistance from the fan wheel compensates for the reduced magnetic resistance, preserving both ease of operation and training effectiveness
3Adaptability or versatility
If elastic members are used for reluctance control in the treadmill, then the resistance adjustment is achievable, but the elastic members fatigue and affect durability
Solution Approach 1:
The patent replaces elastic members with a cable-based adjusting mechanism. The cable system connects the operating handle to the magnetic resistance module, eliminating elastic members and their associated fatigue problems while maintaining resistance adjustment capability through mechanical cable tensioning
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 composite resistance module offers enhanced resistance capabilities, improved durability, energy efficiency, and user-friendly operation, allowing for adjustable resistance and easy handling of the treadmill.
Implementation Method 1
the rear roller is provided with a reluctance configuration for providing magnetic resistance
Implementation Method 2
one of the rollers is subjected to magnetic resistance and wind resistance when rotated
Implementation Method 3
The contact portion is configured to contact the wheel body for providing a frictional resistance
Data Source
AI summary
A non-motorized treadmill includes a non-motorized treadmill body and a composite resistance module. The non-motorized treadmill body includes two rollers and a treadmill belt. The treadmill belt is wound around the two rollers. The composite resistance module includes a reluctance module and a fan wheel. The reluctance module includes a wheel body and a resistance member. The wheel body is mounted to one of the rollers. The resistance member is located close to the wheel body. One of the wheel body and the resistance member includes a metal member. The other of the wheel body and the resistance member includes a magnetic member. The fan wheel is connected to one side of the wheel body so that one of the rollers is subjected to magnetic resistance and wind resistance when rotated.