Land Roller Packer Wheels for Compact Transport Width
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Solution Overview
Problem
Existing land rollers face challenges in compact design for transport, efficient soil leveling, and versatile use for different agricultural applications, including cover crop management and seeding, due to complex construction and wide transport widths.
Innovation Solution
A land roller implement with pivotally coupled wings and a central frame, featuring packer wheels that align with gaps between rollers for dual transport and packing functions, and a drive motor system allowing wings to deploy without rearward movement, along with a ground levelling device and cover crop roller device for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wings are folded rearwardly into transport position, then transport width is reduced, but implement must be displaced rearwardly to deploy wings which is not possible when towed behind other implements
Solution Approach 1:
The patent applies dynamics by making the wing configuration changeable between transport and working positions. The wings are designed to be movable relative to the central frame, allowing them to be in line with the central roller for compact transport while being able to pivot outward to working positions for field operation. This dynamic reconfiguration resolves the contradiction between compact transport width and deployment capability.
2Area of stationary object
If rollers on wings are in line with central roller, then transport width is reduced, but gaps between adjacent rollers require additional trailing rollers adding to mass and size
Solution Approach 1:
The patent merges the functions of multiple rollers by positioning the outer roller of each wing to overlap with the inner roller of the adjacent wing. This overlapping arrangement eliminates gaps between rollers, allowing the rollers to be in line with the central roller for compact transport without requiring additional trailing rollers to fill gaps.
3Strength
If heavy beams are used for ground levelling, then structural strength is improved, but transport width increases due to excess material and equipment
Solution Approach 1:
The patent applies local quality by providing ground levelling beams only at specific locations where needed - ahead of the central roller and ahead of each wing roller - rather than using heavy beams throughout the entire structure. The beams are positioned locally to level protruding mounds of earth, providing structural strength only where required while minimizing overall transport width.
Data Source
AI summary
A land roller implement includes a wheel aligned with the respective gap between the inner roller and the outer roller of each wing in which the wheel is pivotal between a packing position in the working position of the rollers and a transport position supporting the rollers in the transport position of the implement. The wings can also include a drive motor associated with each transport wheel to drive forward rotation of the wheel for displacing the wings from the transport position to the working position without displacing the implement in a rearward direction. A levelling beam attachment and a seeding attachment can also optionally be used on the land roller implement. Optional latchable brace members pivotally supported on the wings may provide additional support to the wings when using the levelling beam attachment.