Dual Linkage Front Fork with Steering Lock for Scooter Stability
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Solution Overview
Problem
Conventional three-wheeled scooters experience instability during turns due to one wheel lifting off the ground and are difficult to store upright without assistance, as they lack inherent stability and storage capabilities.
Innovation Solution
A dual linkage assembly with independent rotating arms and a lock assembly that maintains both front wheels in contact with the ground during turns and allows the scooter to stand upright, featuring a system of pivot points and a lock mechanism for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional three-wheeled scooter makes a turn by leaning, then the turning action is simple, but one wheel lifts off the ground causing instability
Solution Approach 1:
The patent applies the dynamics principle by implementing a dual linkage assembly with multiple pivot points that enables the front wheels to dynamically adjust their position during turns. The linkage system allows the wheels to maintain ground contact while the scooter turns, transforming the static wheel positioning into a dynamic, adaptive configuration that preserves stability during maneuvering operations.
2Device complexity
If a conventional three-wheeled scooter is parked without a stand, then no additional components are needed, but the scooter cannot stay upright
Solution Approach 1:
The patent applies the universality principle by designing the dual linkage assembly to perform multiple functions: it enables stable turning operations and simultaneously provides upright stability when the scooter is parked without a stand. The same linkage mechanism with its six pivot points serves both maneuvering and parking stabilization purposes, eliminating the need for separate stands or additional support components.
3Stability of the object's composition
If a dual linkage assembly with six pivot points is implemented, then stability during turns is improved, but the device complexity increases
Solution Approach 1:
The patent applies the segmentation principle by dividing the front wheel positioning system into six distinct pivot points distributed across two linkage assemblies. This segmentation allows each pivot point to independently contribute to the overall stability and turning capability, breaking down the complex motion control into manageable rotational joints that can be implemented with standard mechanical components.
Data Source
AI summary
A vehicle includes a dual linkage assembly coupled to two front wheels and a fork. The dual linkage assembly includes arms coupled at pivot points. Each arm rotates independently at the pivot points and responds to force applied by the rider, such that both front wheels maintain contact with the ground. The vehicle further includes a lock assembly including a lever and a lock block coupled to the front fork, a first piece with a first notch coupled to one or more of the arms, and a second piece with a second notch coupled to a head tube. When locked, the lock block engages the first notch, preventing the dual linkage assembly from rotating, and engages the second notch, preventing the fork from rotating. The vehicle is then capable of standing upright without assistance from a rider or stand.