Steerable Caddy Trailer Linkage for Tight Turning
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Solution Overview
Problem
Existing trailers designed for tight turning radii have complex structures with multiple moving parts, which increase manufacturing and assembly costs and limit payload capacity, making them unsuitable for hauling heavy farm products.
Innovation Solution
A tow behind steerable caddy trailer with a simplified structure featuring a main frame assembly, pivotally attached wheels, and swinging arms that adjust to maintain wheel alignment, allowing for a tight turning radius with fewer moving parts and increased payload capacity by using tracks instead of wheels for heavy loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If complicated structures with multiple moving parts are used to achieve tight turning radius, then turning performance is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts the essential steering function from the complex multi-component systems of prior art, implementing it through a simplified linkage mechanism that directly connects the steering input to the wheel rotation, eliminating unnecessary intermediate parts while maintaining tight turning capability
Solution Approach 2:
Instead of using multiple moving parts to achieve steering, the patent inverts the approach by using a rigid linkage system with minimal moving parts, where the steering arm directly transfers motion to rotate the wheel, achieving tight turning radius through geometric arrangement rather than mechanical complexity
2Ease of operation
If complicated structures with multiple moving parts are used to achieve tight turning radius, then turning performance is improved, but manufacturing and assembly cost increase
Solution Approach 1:
The patent removes extraneous components from the steering system, retaining only the essential elements needed for tight turning, thereby reducing the number of parts that require manufacturing, tooling, and assembly, directly lowering production costs
Solution Approach 2:
The patent combines multiple functions into fewer components, integrating the steering linkage and wheel mounting into a unified structure that performs both steering and structural support functions, reducing the total part count and associated manufacturing costs
3Ease of operation
If complicated structures with multiple moving parts are used to achieve tight turning radius, then turning performance is improved, but payload capacity decreases
Solution Approach 1:
The patent extracts only the necessary steering components, eliminating redundant moving parts that would add weight, thereby maximizing the payload capacity while maintaining tight turning performance through a lightweight, minimalistic steering design
Solution Approach 2:
Instead of adding multiple moving parts to achieve steering, the patent uses a rigid, minimal-linkage system that requires fewer materials and moving components, reducing the overall weight of the trailer and increasing its payload capacity while still achieving tight turning radius
Data Source
AI summary
A steerable caddy trailer is provided that has an improved structure including a main frame assembly, spindle assemblies attached to each end of the main frame for attachment of a wheel, a pair of swinging arms forwardly extending from the main frame and pivotally attached to the main frame, and tie rods connecting the swinging arms with the spindle assembly such that pivoting of the swinging arms steers the wheel.