Injection Molded Transplanter Base Structure
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Solution Overview
Problem
Existing transplanters for planting seedlings in paper pots are fabricated from sheet metal, which can catch the pots at connection points, deform under use and temperature changes, and rust in wet conditions, leading to inefficiencies and damage to the seedlings.
Innovation Solution
A transplanter with a frame structure supporting a tray, an operating handle structure with adjustable extensions, and a base structure featuring a chute and furrow closing mechanism, all fabricated from injection molded parts to enhance durability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If sheet metal is used to fabricate the transplanter base structure, then manufacturing cost and ease of fabrication are improved, but the structure catches pots at connection points, deforms under use and temperature changes, and rusts in wet conditions
Solution Approach 1:
The patent changes the material parameter from sheet metal to injection molded plastic, fundamentally altering the physical and chemical properties of the base structure. This material substitution eliminates rust susceptibility, prevents deformation under temperature changes, and removes connection points that catch pots, while maintaining manufacturability through injection molding processes
Solution Approach 2:
The patent employs composite material construction by integrating multiple functional components (base structure, chute, furrow closing mechanism) into a single injection molded polymeric structure. This composite approach creates a unified structure that combines the benefits of corrosion resistance, dimensional stability, and smooth surfaces for pot flow
2Ease of manufacture
If sheet metal is used to fabricate the transplanter base structure, then manufacturing simplicity is improved, but the structure deforms under use and temperature changes leading to inefficiencies
Solution Approach 1:
The patent changes the material parameter from sheet metal to injection molded plastic, fundamentally altering the physical and chemical properties of the base structure. This material substitution eliminates rust susceptibility, prevents deformation under temperature changes, and removes connection points that catch pots, while maintaining manufacturability through injection molding processes
Solution Approach 2:
Instead of assembling multiple sheet metal components that create connection points, the patent inverts the approach by creating a single integrated injection molded structure. This eliminates the connection points that cause pot entrapment and provides inherent structural stability without requiring complex assembly
3Ease of manufacture
If sheet metal is used to fabricate the transplanter base structure, then ease of fabrication is improved, but the structure catches pots at connection points causing seedling damage
Solution Approach 1:
The patent changes the material parameter from sheet metal to injection molded plastic, fundamentally altering the physical and chemical properties of the base structure. This material substitution eliminates rust susceptibility, prevents deformation under temperature changes, and removes connection points that catch pots, while maintaining manufacturability through injection molding processes
Solution Approach 2:
Instead of assembling multiple sheet metal components that create connection points, the patent inverts the approach by creating a single integrated injection molded structure. This eliminates the connection points that cause pot entrapment and provides inherent structural stability without requiring complex assembly
4Ease of manufacture
If sheet metal is used to fabricate the transplanter base structure, then manufacturing cost is improved, but the structure rusts in wet conditions leading to reduced durability
Solution Approach 1:
The patent changes the material parameter from sheet metal to injection molded plastic, fundamentally altering the physical and chemical properties of the base structure. This material substitution eliminates rust susceptibility, prevents deformation under temperature changes, and removes connection points that catch pots, while maintaining manufacturability through injection molding processes
Solution Approach 2:
The patent employs a polymeric base structure that, while potentially having higher initial manufacturing cost through injection molding, provides extended service life by eliminating rust and deformation issues. The durability benefit outweighs the manufacturing cost difference over the product lifecycle
Data Source
AI summary
A transplanter including a frame structure that is configured to support a tray, an operating handle structure, and a base structure including a chute. The frame structure can include a furrower to from a furrow in soil and the transplanter can also include a furrow closing structure configured to close the furrow at a location beyond an end of the chute. The operating handle structure can enable one or more attributes of the operating handle to be selectively reconfigured. The base structure can be fabricated from one or more injection molded parts.