Bicycle Trainer Variable Resistance Mechanism
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Solution Overview
Problem
Existing bicycle trainers lack the ability to simulate real-world bicycle courses with variable resistance and limited bicycle movement, failing to provide a realistic training experience for riders.
Innovation Solution
A bicycle trainer that includes a lifting mechanism for the front tire and a resistance cylinder for the rear tire, allowing for forward and backward translation of the bicycle, with mechanisms to control resistance through fluid volume, density, and tilting, providing variable resistance and simulating uphill and downhill terrain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a stationary bicycle is used with fixed resistance, then the structure is simple and stable, but the training experience is unrealistic and lacks variable resistance
Solution Approach 1:
The patent applies dynamics by making the resistance mechanism adjustable and variable. The trainer includes a resistance element that can be modified during operation to simulate different terrain conditions (hills, flats, descents), transforming a static resistance system into a dynamic one that adapts to training requirements.
Solution Approach 2:
The patent implements parameter changes by allowing modification of resistance characteristics through fluid density adjustment, fluid volume variation, and resistance element position changes. These parameter modifications enable the trainer to simulate varying real-world riding conditions without requiring complete structural redesign.
2Adaptability or versatility
If the bicycle is completely fixed on the trainer, then stability is maximized, but realism is reduced by eliminating natural movement
Solution Approach 1:
The patent applies dynamics by introducing controlled mobility to the bicycle system. The trainer allows the bicycle to tilt and shift position in response to resistance changes and rider input, simulating natural bicycle behavior during hill climbing and descent while maintaining sufficient stability for safe operation.
Solution Approach 2:
The patent uses counterweight principles through springs and mechanical linkages that provide righting forces to stabilize the bicycle when it tilts during exercise. These counterbalancing elements allow controlled movement while preventing excessive instability.
3Adaptability or versatility
If a one-size-fits-all stationary bicycle is used, then manufacturing is simplified, but individual user preferences and bicycle specifications cannot be accommodated
Solution Approach 1:
The patent implements universality by designing the trainer to accommodate various bicycle types and user preferences. The adjustable resistance mechanism, modular components, and configurable settings allow the same trainer unit to serve multiple users with different bicycles and training requirements, eliminating the need for customized equipment for each individual.
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
Enables a more realistic training experience by simulating real-world bicycle courses with variable resistance, accommodating individual bicycles, and allowing limited movement to enhance the simulated riding experience.
Implementation Method 1
a resistance cylinder (30) attached to the frame (20) and pressing against the rear tire (26) for providing a source of resistance to the rear tire (26)
Data Source
AI summary
The invention is a bicycle trainer to which a standard bicycle temporarily attaches for exercise and simulated rides. A lifting mechanism raises and lowers the front tire, and in preferred embodiments, a frame engages the rear tire to hold the rear tire in an elevated position against a resistance cylinder. The resistance cylinder provides a force against rear tire revolution and varies the resistance to pedaling. The resistance cylinder can vary resistance against back tire revolution by pumping a resistance fluid into and out of the cylinder, by changing the position of the resistance cylinder in relation to the back tire, or by translation of the bicycle back and forth. In other embodiments, the trainer is electronically controlled to simulate real-world geographical courses programmed into a readable format for electronically maneuvering front tire and back tire positions as necessary to provide resistance to pedaling.