Lowerable Trailer Frame with Folding Hitch
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Solution Overview
Problem
Current trailer designs pose difficulties in accessibility for wheelchair users and others with disabilities due to elevated frames, and traditional trailer hitches occupy unnecessary space and are aesthetically unpleasing.
Innovation Solution
A vehicle frame with a swing suspension system that allows trailers to be lowered to near ground level for easier access and a folding trailer hitch for space efficiency and aesthetics, featuring a hinged design that can be stored when not in use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the trailer frame is positioned above the wheels at a higher level, then the structural integrity and stability are maintained, but accessibility for wheelchair users and handicapped persons becomes difficult requiring steps, ramps and platforms
Solution Approach 1:
The patent applies a lowerable frame mechanism that allows the trailer frame to be dynamically adjusted between a raised position (for structural stability) and a lowered position (for accessibility). The frame can be lowered close to ground level to reduce ramp height requirements, then raised when structural integrity is prioritized, making the system adaptable to different operational needs.
2Reliability
If the trailer hitch is permanently fixed to the vehicle frame, then the towing connection is secure and reliable, but it occupies unnecessary space and is aesthetically unpleasing when not in use
Solution Approach 1:
The patent employs a folding hitch mechanism that transitions from a fixed extended position (providing secure towing connection) to a folded retracted position (reducing space occupation and improving aesthetics). The hitch remains reliably connected during towing operations but can be folded away when not in use, eliminating the permanent visual and spatial burden.
Solution Approach 2:
The hitch system is divided into separable components that can be independently positioned. The folding mechanism segments the hitch into movable parts that can be articulated between extended and retracted configurations, allowing the connection function to be maintained when needed while minimizing space usage when not needed.
Data Source
AI summary
A lowerable vehicle frame with a folding trailer hitch for trailers and other vehicles has a vehicle frame, which can be transitioned between a lowered transit position and a raised deployed position through a swing suspension assembly and a plurality of lifting devices. A folding trailer hitch connected to the forward end of the vehicle frame allows the vehicle frame to be towed, and folds upwards for storage and aesthetics.