Adjustable Strap-On Aerator Wheel for Simultaneous Mowing

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Solution Overview

Problem

Existing lawn aeration methods, such as spike and plug aerators, require significant physical effort, are costly, and lack convenience, especially when using rented or purchased machines or hiring professionals, and existing mower attachments are not efficient or practical for simultaneous mowing and aeration.

Innovation Solution

An aerator attachment or replacement wheel for lawn mowers featuring adjustable metal spikes that fit over or replace the mower wheels, allowing simultaneous mowing and aeration without additional effort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a spike aerator is used to poke holes into the ground, then aeration is achieved, but significant physical effort is required and the spikes loosen up after each step

Engineering Contradiction:

Improveaeration effectivenessVSAvoidphysical effort required

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent combines the lawn mower's existing wheel with aerating spikes to create a dual-function device. The wheel structure provides continuous rotation and stable ground contact, eliminating the need for manual lifting and repositioning of spikes. The mower's forward motion automatically drives the wheel through the soil, converting horizontal pulling force into effective aeration without the spikes loosening between steps.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The aerating wheel is designed to be self-sustaining through the mower's own motion. As the mower moves forward, the wheel's rotation automatically drives the spikes into the ground and extracts soil plugs without requiring additional physical effort from the operator. The system uses the mower's forward momentum to perform both mowing and aeration functions simultaneously.

Inventive Principle:

Principle #25Self-service

2Reliability

If a plug aerator is used to remove soil cores, then effective aeration is achieved, but costly machinery or professional services are required

Engineering Contradiction:

Improveaeration effectivenessVSAvoidcost of equipment

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent creates a universal attachment that can be adapted to various lawn mower models. By designing the aerating wheel to fit standard mower wheel configurations and using common materials, the invention eliminates the need for expensive specialized aeration equipment. The same wheel structure that mows the lawn now performs aeration, providing multi-functionality without additional cost.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The aerating wheel can be constructed from inexpensive materials such as rubber tires with embedded metal or plastic spikes. Rather than investing in thousands of dollars of specialized aeration machinery, the user can create or attach a simple, low-cost wheel assembly that provides effective aeration through the mower's regular operation.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Reliability

If an aeration machine is rented or purchased, then aeration capability is obtained, but transportation and storage become problematic

Engineering Contradiction:

Improveaeration capabilityVSAvoidtransportation requirements

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The invention segments the aeration function into a separate wheel attachment that can be independently added to or removed from the lawn mower. This modular approach allows the aeration components to be stored separately or attached only when needed, eliminating the need to transport and store entire specialized aeration machines. The wheel attachment integrates seamlessly with the mower's existing structure.

Inventive Principle:

Principle #1Segmentation

4Ease of operation

If shoes with spikes are used for aeration, then portability is improved, but the spikes loosen up and require excessive physical effort to maintain penetration

Engineering Contradiction:

ImproveportabilityVSAvoidspike retention

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent merges the aerating spikes with a rotating wheel structure rather than attaching them to stationary shoe soles. The rotation provides continuous ground contact and prevents the spikes from loosening, while the wheel's weight and structure distribute the force evenly. This combination maintains portability since the attachment can be easily added to or removed from the mower, while eliminating the spike loosening problem through rotational motion.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12484463B2Aerator attachment

Publication Date: 2025.12.02 MENTILLO JEREMY R

AI summary

A strap-on aerator wheel comprises two or more curved pieces having metal spikes protruding outwardly from an outside surface, a first strap end fixed to a first end of a first curved piece and a second strap end fixed to a second end of a last curved piece, a linking mechanism joining each second end of a curved piece to a first end of a next curved piece not already fixed to a first or second strap end wherein when the first and second strap ends are joined, the two or more curved pieces form a circular shape and wherein each linking mechanism is configured to be adjusted to conform to the diameter of the wheel wherein the circular shape is held onto the wheel and wherein the metal spikes are configured to aerate a lawn as the wheel is moved over the lawn.