Adaptive Track Assembly for Mobility Stability
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Solution Overview
Problem
Conventional wheelchairs face difficulties when traversing uneven terrain or negotiating obstructions, as they often become stuck or unstable, leading to potential upsets when trying to free themselves or navigate over obstacles like rocks, logs, or curbs.
Innovation Solution
A multi-terrain transport apparatus with an adaptive track assembly that includes a suspension mounting assembly, an adaptive track unit with a track side plate, idler wheels, a track arm, and an actuator to control the positioning of the track arm idler wheel, allowing the surface area of the continuous track to adjust in response to terrain changes, thereby modifying contact with the ground.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the surface area of the continuous track is increased to improve stability on uneven terrain, then the transport apparatus can better negotiate obstructions, but the device complexity increases due to the need for adaptive adjustment mechanisms
Solution Approach 1:
The track assembly incorporates an adaptive mechanism that dynamically adjusts the surface area of the continuous track in contact with terrain. The actuator positions the track arm idler wheel to increase or decrease contact area based on terrain conditions, allowing the system to optimize stability in real-time without requiring multiple fixed configurations or complex manual adjustment systems
2Productivity
If the track arm idler wheel is positioned to increase surface area contact with terrain, then mobility over rough surfaces improves, but the ease of operation decreases due to the need for active control
Solution Approach 1:
The adaptive track assembly is equipped with sensors and control systems that automatically detect terrain conditions and adjust the track arm idler wheel position accordingly. The system self-regulates the surface area contact based on terrain feedback, eliminating the need for manual user intervention while optimizing mobility across varying terrains
3Adaptability or versatility
If the continuous track is designed to surround more components including adaptive elements, then the adaptability to different terrains improves, but the weight of the moving object increases
Solution Approach 1:
The continuous track serves multiple functions: it provides propulsion, supports the weight of the transport apparatus, and actively adjusts its contact surface area with terrain through the adaptive mechanism. The track arm and idler wheel assembly are integrated into the track structure itself, allowing a single component system to perform both structural support and terrain adaptation functions
Data Source
AI summary
A multi-terrain transport apparatus, such as a motorized wheelchair, that allows adjustment of the terrain-contacting surface area of a continuous track depending on the terrain encountered by the transport apparatus.