Adjustable Support Frame With External Trolley Mounting
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Solution Overview
Problem
Existing devices for lifting and moving disabled persons are often unwieldy, difficult to adapt to varying room sizes, require stabilization against ceilings which may not be available, and have inaccessible trolley wheels for inspection and repair.
Innovation Solution
A frame with adjustable support legs and a length-adjustable load support member, where the trolley is mounted externally for easy access and repair, and includes a floor-only stabilizer for stability, allowing independent height adjustment of legs and easy assembly/disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the trolley is internally mounted within the crossbar, then the apparatus structure is compact, but the wheels are inaccessible for inspection and repair
Solution Approach 1:
The patent inverts the conventional mounting approach by placing the trolley externally on the crossbar rather than internally within it. This allows the wheels to be accessible for inspection and repair while maintaining a relatively compact apparatus structure. The external mounting achieves the opposite of the conventional design, solving the accessibility problem without significantly increasing overall complexity.
2Stability of the object's composition
If the apparatus requires ceiling stabilization, then the structure is stabilized, but the device cannot be used where ceilings are unavailable
Solution Approach 1:
The patent designs the apparatus to function universally in different environments by eliminating the ceiling stabilization requirement. The device achieves stability through alternative means that do not depend on ceiling attachment, making it adaptable to various settings including those without accessible ceilings. This multi-functional approach allows the same apparatus to be used in diverse environments.
Solution Approach 2:
The patent extracts the ceiling stabilization function from the apparatus design, removing the dependency on ceiling attachment. By taking out this requirement, the device becomes versatile and can be deployed in environments where ceilings are unavailable or inaccessible, while stability is maintained through other structural means.
3Device complexity
If the load support member has fixed length, then the structure is simple, but it cannot be adapted to varying room sizes
Solution Approach 1:
The patent applies dynamics by making the load support member adjustable in length rather than fixed. This allows the apparatus to adapt to varying room sizes and configurations while maintaining reasonable structural simplicity. The adjustable mechanism enables the same device to be configured for different spatial requirements without requiring multiple specialized structures.
Data Source
AI summary
A frame for supporting and moving a load, the frame comprising first and second support legs for supporting said frame on at least one floor; a load support member, extending between the first support leg and the second support leg, wherein the load support member is sized and shaped to be length adjustable; and a trolley, movably mounted on an external surface of the load support member, the trolley and load support member being sized and shaped to permit the trolley to move along the load support member; whereby access to the trolley, without removing same from the load support member, is facilitated.