Personal Mobility Vehicle Slider Folding for Easier Unfolding
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Solution Overview
Problem
Existing electric personal mobility vehicles are cumbersome and labor-intensive due to their substantial weight and complex folding and unfolding procedures.
Innovation Solution
A personal mobility vehicle design featuring a front leg unit, rear leg unit, seat unit, backrest unit, and slider mechanism that allows for synchronized folding and unfolding through coordinated movement of these components, facilitated by a drive mechanism and limiting mechanisms to simplify operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the mobility vehicle uses substantial weight components for stability and durability, then the vehicle strength and stability are improved, but the folding and unfolding operation becomes more labor-intensive and time-consuming
Solution Approach 1:
The vehicle is divided into multiple leg units (front leg unit and rear leg unit) that can be independently folded and unfolded. Each leg unit contains specific components (vehicle body, wheel, seat unit, backrest unit) that move synchronously, allowing the heavy vehicle to be segmented into manageable folding sections that reduce overall operation difficulty.
Solution Approach 2:
The folding and unfolding operations of multiple components are merged into a synchronized movement sequence. When the slider moves, it simultaneously induces rotation of the seat unit and movement of the front and rear vehicle bodies toward or away from each other, combining multiple folding actions into one coordinated motion that reduces total operation time and effort.
2Volume of moving object
If the mobility vehicle uses complex folding mechanisms to achieve compact storage, then the storage capability is improved, but the device complexity increases
Solution Approach 1:
The slider serves multiple functions: it moves along the rear vehicle body to enable folding, simultaneously induces rotation of the seat unit, and coordinates the movement of the front and rear vehicle bodies. This multi-functionality reduces the need for separate complex mechanisms for each folding action, thereby reducing overall device complexity while achieving compact storage.
Solution Approach 2:
The folding mechanism is designed to be self-synchronizing through the slider's movement. As the slider moves, it automatically coordinates the rotation of the seat unit and the movement of the vehicle bodies without requiring external control or complex linkage systems, allowing the mechanism to self-regulate the folding process and reduce complexity.
3Device complexity
If the mobility vehicle uses manual folding procedures, then the device simplicity is maintained, but the time required for storage and retrieval increases
Solution Approach 1:
The folding mechanism transitions from static manual manipulation to dynamic synchronized movement. The slider's movement dynamically coordinates the rotation of the seat unit and the movement of the vehicle bodies in real-time, enabling faster folding and unfolding operations while maintaining relative simplicity through the use of basic pivotal connections and sliding movements.
Data Source
AI summary
This application relates to a personal mobility vehicle. The vehicle comprises: a front leg unit, including a front vehicle body and a front wheel mounted thereon; a rear leg unit, including a rear vehicle body and a rear wheel mounted thereon; a seat unit pivotally connected to the front vehicle body and/or rear vehicle body; a backrest unit including a backrest pivotally connected to the seat unit; and a slider on the rear vehicle body, pivotally connected to the seat unit and/or backrest unit. As the slider moves, the front vehicle body and rear vehicle body move apart or toward each other, while the seat unit rotates. The vehicle facilitates folding and unfolding, improving the user experience.