Integrated Mower-Edger With Horizontal And Vertical Blades
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Solution Overview
Problem
Homeowners need to invest in and manage separate lawn mowers and edgers for mowing and edging, which is inefficient and costly.
Innovation Solution
A combination mower and edging device with an integrated chassis, electric drive and edging motors, and a controller for operating both mowing and edging functions, allowing for multiple operating modes including simultaneous or independent use of mowing and edging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate lawn mowers and edgers are used for mowing and edging, then each function can be performed with a specialized device, but the user must purchase, store, maintain, and utilize two separate machines which increases investment and complexity
Solution Approach 1:
The patent combines a lawn mower and an edger into a single integrated device. The mower portion includes a horizontally oriented blade for cutting grass, while the edger portion includes a vertically oriented blade for creating edges. Both blades are mounted on the same chassis and can be operated simultaneously or independently, allowing users to perform both mowing and edging functions with one machine rather than two separate devices.
Solution Approach 2:
The single device is designed to perform multiple functions: it can mow lawns using the horizontal blade, edge gardens and sidewalks using the vertical blade, and can operate in various modes including simultaneous mowing and edging. The device includes a controller that manages both the mower motor and edging motor, enabling versatile operation from a single unified system.
2Reliability
If separate lawn mowers and edgers are used, then each device can be optimized for its specific function, but the requirement to purchase and maintain two separate machines increases cost and storage requirements
Solution Approach 1:
The patent merges the functionality of a specialized mower and a specialized edger into one combined device. The chassis supports both a horizontally oriented blade for mowing and a vertically oriented blade for edging, with each blade maintained by its own dedicated motor and control system, preserving functional optimization while reducing equipment quantity.
3Ease of operation
If a combination device is used to perform both mowing and edging, then the number of machines is reduced and user convenience is enhanced, but the device structure becomes more complex with multiple motors and controls
Solution Approach 1:
The combined device provides a unified control system that manages both mowing and edging operations. The controller can operate the mower motor and edging motor independently or simultaneously based on user input, allowing convenient operation modes such as mowing only, edging only, or both functions at once, thereby enhancing user convenience despite the integrated complexity.
Data Source
AI summary
A combination mower and edging device includes a chassis having a pair of front wheels, a pair of rear wheels and a pair of handlebars. An electric driving motor is connected to the rear wheels, and an electric mower motor is connected to a cutting blade that is positioned within an annular cutting chamber located beneath the chassis. An electric edging motor is coupled to a vertically oriented edging blade that is positioned along a distal end of an elongated support rod. The rod moves the edging blade between a raised and lowered configuration via a control lever on the handlebars. The mower motor, drive motor and edging motor are connected to an onboard controller and operated by user interface devices located along the handlebars. A housing encloses each of the motors and a collection bag is connected to an opening within the annular chamber to collect grass clippings.