Lawn Mower Storage Wheel Layout for Easy Upright Maneuvering
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Solution Overview
Problem
Existing lawn mowers lack efficient storage solutions that allow for easy conversion between operational and storage positions, compromising user convenience and space efficiency.
Innovation Solution
A lawn mower design featuring a handle that rotates between use and storage positions, rear wheels and storage wheels that maintain ground contact in different planes, and a housing with a low-friction skid structure for easy maneuvering in storage, enabling seamless transition between operational and storage states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lawn mower is designed with a fixed handle position, then the structure is simple, but the ease of operation is reduced when converting between use and storage positions
Solution Approach 1:
The handle is designed to be movable rather than fixed, allowing it to rotate between a use position (extending away from the rotary tool axis) and a storage position (extending toward the rotary tool axis). This dynamic configuration enables easy conversion between operational and storage states without requiring complex disassembly or repositioning mechanisms.
2Ease of operation
If the lawn mower uses only main wheels for both use and storage, then the device complexity is low, but the ease of operation is compromised when storing the mower horizontally
Solution Approach 1:
The wheel system is segmented into two distinct sets: main wheels for operational use and storage wheels for storage positioning. The storage wheels are positioned above the main wheels and can contact the ground when the housing is in the storage position, allowing the mower to be easily maneuvered horizontally without requiring complex adjustable wheel mechanisms.
3Ease of operation
If the housing has high friction contact with the ground, then the stability during operation is improved, but the ease of operation is reduced when maneuvering in storage position
Solution Approach 1:
The housing incorporates a skid structure with a low coefficient of friction at the rear portion that contacts the ground during storage. This localized low-friction feature allows easy maneuvering when in storage position, while the overall housing structure maintains sufficient stability during operation through the main wheels and handle configuration.
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
Facilitates easy conversion between use and storage positions, enhances space efficiency, and improves user convenience by allowing easy maneuvering and storage of the lawn mower.
Implementation Method 1
the storage plastic structure has a coefficient of friction that is less than a coefficient of friction of the housing
Data Source
AI summary
The disclosed subject matter is directed to an electric lawn machine and method for use. The machine can include a housing and a tool, such as a lawnmower blade. A front pair of drive wheels, rear pair of drive wheels, and a storage surface/wheels can be connected to the housing. The housing can be configured to be placed upon a ground surface in two different positions: a use position in which the front pair of drive wheels and the rear pair of drive wheels contact the ground surface; and, a storage position in which the rear pair of drive wheels and the storage surface/wheel(s) contact the ground surface. A handle can be provided that is moveable between a use position, storage position, and an intermediate position in which the machine can be pulled/pushed around into and out of storage by the handle.