Front Two-Wheeled Vehicle Steering Mechanism
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Solution Overview
Problem
Front two-wheeled vehicles face challenges in improving running stability, which is essential for safe and efficient operation.
Innovation Solution
The configuration includes a vehicle body with a low-positioned front cylinder part that supports a steering transmission shaft, a steering rotation section, and a steering link mechanism, which lowers the center of gravity by positioning the steering components below the wheel axles, enhancing stability through a triangular frame structure and strategic placement of heavy components like batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the steering components are positioned high, then the structure is simpler, but the center of gravity is high and stability is poor
Solution Approach 1:
The patent positions the steering transmission shaft and steering rotation section in the vertical dimension below the wheel axles, rather than arranging them at the same or higher level. This dimensional repositioning lowers the center of gravity and improves stability without adding horizontal complexity to the steering mechanism.
Solution Approach 2:
By placing heavy steering components (steering transmission shaft, steering rotation section) at the lowest possible position in the vehicle structure, the patent creates a counterbalancing effect that lowers the overall center of gravity, thereby improving running stability.
2Stability of the object's composition
If the front cylinder part is positioned high, then the steering mechanism is more accessible, but the center of gravity is elevated and stability decreases
Solution Approach 1:
The front cylinder part is repositioned in the vertical dimension to extend downward from the steering transmission shaft, placing its lower end below the wheel axles. This vertical arrangement maintains steering accessibility while achieving the desired low center of gravity for improved stability.
3Stability of the object's composition
If the steering rotation section is positioned above the wheel axles, then the steering link mechanism is simpler, but the center of gravity is high reducing stability
Solution Approach 1:
The steering rotation section is positioned below the wheel axles in the vertical dimension, and the steering link mechanism connects it to the wheel axles through vertical linkages. This arrangement maintains mechanical simplicity while achieving a low center of gravity for improved stability.
Data Source
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AI summary
[Problem to be solved] To improve the running stability of a front two-wheeled vehicle. [Solution] A first front wheel is located on a first side in a vehicle width direction, and a second front wheel is located on a second side in the vehicle width direction. The lean mechanism leans the first front wheel and the second front wheel in a front view in conjunction with the vehicle body leaning in the front view. By operating the handle, the first front wheel turns around a first turning shaft and the second front wheel turns around a second turning shaft. A steering transmission shaft rotates in conjunction with an operation of the handle. The frame of the vehicle body includes a front cylinder part that supports the steering transmission shaft. In the state where the vehicle body is upright, a lower end of the front cylinder part is lower than axles of the first front wheel and the second front wheel. The front two-wheeled vehicle includes a steering rotation section that is at least partially located below the lower end of the front cylinder part and rotates integrally with the steering transmission shaft. The steering rotation section is connected to the first front wheel and the second front wheel via a steering link mechanism.