Motorcycle Front Wheel Tilting Mechanism for Uneven Surfaces
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Solution Overview
Problem
Existing road holding mechanisms for motorcycles with two front wheels are complex and costly, failing to maintain stability on uneven and inclined surfaces effectively.
Innovation Solution
A simple mechanism featuring two front wheel brackets with connecting arms, shock absorbers, and a tilting system that allows the front wheels to maintain contact with the ground through controlled buffer actions and directional steering, utilizing a steering shaft, anchor plate, and extension plate to manage tilting and turning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a linkage-based road holding mechanism is used, then the front wheels can maintain stability on uneven surfaces, but the product cost becomes high due to multiple structure assemblies
Solution Approach 1:
The mechanism divides the road holding function into independent components: shock absorbers for vertical movement, linkages for tilting control, and a connecting base for coordination. Each component performs a specific function, allowing the system to maintain stability while reducing overall complexity compared to a fully integrated linkage system.
Solution Approach 2:
The connecting base serves multiple functions: it connects the shock absorbers to the frame, coordinates the tilting motion of both front wheels simultaneously, and provides a mounting structure for the linkages. This multi-functionality reduces the number of separate assemblies needed, lowering product cost while maintaining reliability.
2Adaptability or versatility
If shock absorbers are used to control front wheel movement, then the front wheels can adapt to uneven surfaces, but the device complexity increases due to additional components
Solution Approach 1:
The shock absorbers are integrated with the connecting base and linkage system rather than being separate assemblies. The shock absorbers combine vertical suspension function with tilting control through their mounting arrangement on the connecting base, reducing the total component count while maintaining adaptability to uneven surfaces.
Solution Approach 2:
The shock absorbers provide dynamic response to uneven surfaces through controlled damping, allowing the front wheels to adapt to varying road conditions. The linkages connected to the shock absorbers translate vertical movement into coordinated tilting motion, enabling the system to handle diverse surface conditions without requiring additional static structural components.
3Reliability
If a tilting system is implemented to control shock absorber forces, then the front wheels can maintain contact on inclined surfaces, but the manufacturing cost increases
Solution Approach 1:
The tilting system utilizes the natural gravitational force and the mechanical advantage of the linkage geometry to control shock absorber forces. The connecting base and linkages automatically coordinate the tilting motion based on the shock absorbers' vertical movement, eliminating the need for powered actuation systems and reducing manufacturing complexity and cost.
Solution Approach 2:
The connecting base acts as an intermediary mechanism that translates the vertical movement of individual shock absorbers into coordinated tilting motion of both front wheels. This mechanical mediation ensures both wheels maintain contact with inclined surfaces without requiring complex control systems or additional actuators, keeping manufacturing costs low.
4Ease of operation
If linkages are used to drive front wheels to tilt simultaneously, then directional control is improved, but the device complexity increases
Solution Approach 1:
The linkage system uses asymmetric mounting positions and arm lengths on the connecting base to achieve simultaneous tilting of both front wheels. The asymmetric geometry allows the linkages to translate vertical shock absorber movement into coordinated tilting motion, providing intuitive directional control while maintaining a relatively simple structural configuration.
Solution Approach 2:
The linkages are pre-configured with specific geometric relationships during manufacturing, so that when the shock absorbers move vertically, the linkages automatically produce the correct tilting motion. This preliminary geometric configuration eliminates the need for complex real-time control mechanisms, improving directional control while keeping the device structure simple.
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 mechanism ensures stable operation on various road conditions, including uneven and inclined surfaces, by complementing and restricting shock absorber forces, and allowing for effective directional control and parking without manual support.
Implementation Method 1
Each of the two connecting arms, on the top surface thereof, is respectively configured with a shock absorber pivotally connected with the motorcycle frame, and the buffer action forces from both of the shock absorbers are controlled by a tilting system
Data Source
AI summary
The present invention provides a road holding ability mechanism applied to a motorcycle with two wheels in front. The mechanism may be configured on a three-wheeled motorcycle which has two front wheels and a single rear wheel or on a four-wheeled motorcycle with two front wheels as well as two rear wheels. Under any operating condition, the mechanism enables the two front wheels to offer great road holding ability, that is, to remain stable when moving so as to ensure the motorcycle against rollovers. The present invention includes a simple and innovative structure.