Power-Assisted Garden Tool Piston Mechanism for Soil Breakup
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing garden tools require significant physical strength to operate effectively, especially in packed or dry soil conditions, and can be difficult for elderly or disabled individuals to use.
Innovation Solution
A power-assisted garden tool with a handle and interchangeable tool implements, featuring a drive mechanism with a motor-powered piston that provides reciprocating motion to assist in gardening tasks, allowing for efficient and ergonomic operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual garden tools are used, then the gardener can perform gardening tasks, but significant physical strength is required and the gardener may tire before completion
Solution Approach 1:
The patent replaces the manual mechanical system with a power-assisted system. A motor (electrical power source) is integrated into the tool handle, connected through a transmission mechanism (gears, belts, or direct drive) to the tool implement, substituting human muscular mechanical energy with electrical motor energy to reduce physical effort while maintaining productivity.
Solution Approach 2:
The patent employs periodic reciprocating motion for the tool implement. The motor drives a crankshaft or eccentric mechanism that converts rotational motion into periodic back-and-forth movement of the tool head, enabling continuous gardening tasks without requiring the user to manually reset the tool position, thereby maintaining high productivity with minimal user effort.
2Force
If manual garden tools are used on packed or dry soil, then the gardener can attempt cultivation, but the tools become difficult to operate due to increased resistance
Solution Approach 1:
The power-assisted system provides controlled force application through the motor. The motor generates sufficient force to overcome the high resistance of packed or dry soil, and the transmission mechanism transmits this force to the tool implement, eliminating the need for the user to manually apply excessive force while maintaining ease of operation.
Solution Approach 2:
The patent enables dynamic adjustment of operational parameters. The motor speed and power output can be varied to match soil conditions - higher power settings for packed or dry soil, lower settings for loose or moist soil. This parameter control allows the tool to maintain optimal force application across varying soil resistance while keeping the interface simple for the user.
3Ease of operation
If manual garden tools are used, then the gardener can perform tasks, but elderly and/or disabled gardeners have difficulty operating them
Solution Approach 1:
The patent replaces the need for human physical power with an electrical motor system. Users with limited strength or mobility can operate the tool by simply activating the motor through a simple control interface (switch, trigger, or button), while the motor provides all necessary power for gardening tasks, making the tool accessible to elderly and disabled gardeners without sacrificing operational capability.
4Productivity
If power-assisted garden tools are introduced, then physical effort is reduced and productivity is enhanced, but device complexity increases
Solution Approach 1:
The patent designs a universal power-assisted platform where the motorized handle can accept multiple interchangeable tool implements (hoe, rake, cultivator, etc.). The power transmission system and control mechanism remain the same across different implements, allowing a single complex power unit to perform multiple gardening functions, thereby justifying the increased complexity through enhanced versatility and productivity.
Solution Approach 2:
The patent segments the tool into modular components: a power-assisted handle unit containing the motor and transmission, and separate interchangeable implement units. This segmentation allows the complex power system to be isolated in one module while implements remain simple and interchangeable, making the overall system manageable despite the complexity of the power assistance mechanism.
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 power-assisted garden tool reduces physical effort required for gardening tasks, enhances operational efficiency, and makes gardening more accessible for users of all abilities by providing sufficient force and motion to effectively break up soil and perform various gardening functions.
Implementation Method 1
a motor that provides rotational motion to a rotary shaft
Implementation Method 2
a piston coupled to the rotary shaft, the piston exhibiting reciprocating motion from the rotational motion
Implementation Method 3
the piston making contact with the interchangeable tool implement, such that the reciprocating motion of the piston causes motion of the interchangeable tool implement
Data Source
AI summary
Included are embodiments of a power assisted garden tool. Some embodiments include a handle and an interchangeable tool implement including a garden tool end, a connection end, and an impact platform. Similarly, some embodiments include a drive mechanism coupled to the handle, the drive mechanism including a power source, a motor that provides rotational motion to a rotary shaft, and a piston coupled to the rotary shaft, the piston exhibiting reciprocating motion from the rotational motion, the piston making contact with the interchangeable tool implement, such that the reciprocating motion of the piston causes motion of the interchangeable tool implement.