Compact Electric Lawn Tool Reducing Operator Strain
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Solution Overview
Problem
Conventional lawn conditioning tools, such as dethatching and aerating tools, are often manually operated or require large, ride-on devices, leading to laborious and exhausting use for operators, necessitating a compact and strain-reducing solution.
Innovation Solution
A compact lawn conditioning tool with a housing, electric motor, and a rotatable work element driven by a drive shaft, featuring adjustable and modular design with interchangeable attachments for dethatching and aerating, including support plates, wheels, bars, and extension members that reduce operator strain and facilitate easy storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual operation is used for lawn conditioning tools, then device complexity is reduced, but operator strain and exhaustion increase
Solution Approach 1:
The patent replaces manual mechanical operation with an electric motor-powered system. The electric motor eliminates the need for human physical effort to drive the conditioning elements, while the overall device remains relatively simple in structure. This substitution resolves the contradiction by reducing operator strain through motorization while maintaining acceptable device complexity.
2Ease of operation
If large ride-on devices are used for motorized lawn conditioning, then operator strain is reduced, but device size and storage difficulty increase
Solution Approach 1:
The patent divides the lawn conditioning system into separate functional components: a compact power unit with electric motor and interchangeable work elements (dethatching elements, aerating elements). This segmentation allows the device to be compact and easily stored while still providing motorized operation that reduces operator strain. The modular design enables the device to function without requiring a large ride-on platform.
3Volume of moving object
If compact design is implemented, then storage ease is improved, but power and performance may be reduced
Solution Approach 1:
The patent implements a universal power unit that can drive multiple types of work elements (dethatching elements, aerating elements, coring elements) through interchangeable attachments. This multi-functionality allows a single compact motor unit to perform various lawn conditioning tasks that would traditionally require multiple separate devices or large ride-on equipment. The electric motor provides sufficient power for these tasks while maintaining a compact overall device size that facilitates easy storage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The tool effectively reduces operator strain and fatigue while being compact and modular, allowing for efficient lawn conditioning with interchangeable attachments that can be easily stored and used for extended periods without exhaustion.
Implementation Method 1
a housing including an electric motor
Data Source
AI summary
Lawn conditioning tools are provided. A lawn conditioning tool includes a housing including an electric motor, a work element, and a drive shaft extending between the electric motor and the work element. The work element includes at least one support plate, at least one wheel, one or more bars extending between the at least one support plate and the at least one wheel, and a plurality of extension members extending from the one or more bars. The work element is rotatably driven by the electric motor via the drive shaft.