Folding Mechanism for Two-Wheeled Vehicle with Nested Wheels
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Solution Overview
Problem
Conventional folding structures for two-wheeled vehicles, such as scooters and bicycles, result in a large volume even after folding, making them difficult to transport and often render the rear and front wheels unusable during transport.
Innovation Solution
A folding structure that includes connection rods and rotational shafts allowing the front and rear wheels to be rotated and folded, creating a space between them for stability and enabling both wheels to be used during transport, with adjustable rotational shafts and slide mechanisms to facilitate compact folding and user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the seat part and handle part are simply folded, then the folding operation is simple, but the folded volume is very large and difficult to transport
Solution Approach 1:
The front wheel is received inside the rear wheel, and the seat part and handle part are folded into the space between the wheels, achieving nested arrangement that minimizes folded volume
2Volume of moving object
If the rear wheel is received in the rear wheel receiving part and the front wheel is received in the front wheel receiving part, then the vehicle can be compactly folded, but the rear wheel and front wheel cannot be used when the vehicle moves
Solution Approach 1:
The wheels are designed to be dynamically reconfigurable - they can be received inside each other for compact storage, or extended outward to function as operational wheels, allowing the system to adapt between storage and usage states
3Volume of moving object
If the seat part is slid to center side and handle part is rotated, then the folding structure becomes more compact, but the structure complexity increases
Solution Approach 1:
Multiple folding actions (sliding seat, rotating handle, folding wheels) are merged into a coordinated sequence that achieves compact folding while maintaining reasonable structural simplicity through integrated design
Data Source
AI summary
The present disclosure relates to a folding structure for two-wheeled vehicle, comprising: a front wheel; a rear wheel; a first connection rod connected to the front wheel; a second connection rod connected to the rear wheel; a first rotary shaft for rotating the first connection rod relative to the second connection rod; and a second rotary shaft for rotating the front wheel relative to the first connection rod, wherein a space is formed by means of the rotation of the first connection rod relative to the first rotary shaft and the rotation of the front wheel relative to the second rotary shaft so as to allow the first connection rod and the second connection rod to be placed between the front wheel and the rear wheel.