Landscape Edging Spike with Angled Ridges and Stabilizer

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Solution Overview

Problem

Existing garden edging systems are prone to dislodging due to environmental factors like heating, freezing, and moisture, leading to the need for an improved anchoring system that is robust and resistant to damage during installation and after installation.

Innovation Solution

A spike with a circular disk-shaped head and angled ridges on its shaft, along with optional wings and an upper head stabilizer, is designed to securely anchor edging products by resisting upward movement and facilitating insertion into the ground, while the stabilizer supports the head during installation impacts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a simple anchor portion is used in edging material, then installation is easy, but the edging material is easily dislodged by environmental factors like heating, freezing, and moisture

Engineering Contradiction:
Improveease of installationVSAvoidresistance to dislodging
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The anchor spike is segmented into distinct functional features: a pointed tip for insertion, angled ridges for mechanical interlocking with soil, and a flattened head for installation. Each segment performs a specific function that collectively solves the contradiction between easy installation and reliable anchoring.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The anchor spike employs asymmetric geometry with angled ridges that provide different characteristics for insertion versus resistance. The ridges are angled to facilitate downward insertion while providing upward resistance, creating asymmetric behavior that addresses both ease of installation and reliability.

Inventive Principle:
Principle #4Asymmetry

2Reliability

If a robust anchor system is designed to resist environmental factors, then reliability improves, but the anchor may be damaged during installation

Engineering Contradiction:
Improveresistance to environmental factorsVSAvoidresistance to installation damage
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The pointed tip is designed in advance to facilitate easy insertion into the ground, allowing the anchor to be installed without requiring excessive force that could damage the structure. The preliminary design of the tip geometry prevents installation damage while maintaining overall structural integrity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The flattened head and angled ridges are designed to distribute installation forces and provide structural reinforcement before environmental loads are applied. This preliminary structural design cushions the anchor against potential damage during the installation process while maintaining reliability.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Duration of action of stationary object

If the anchor portion is designed to delay dislodging, then some retention is achieved, but it does not prevent dislodging in many situations

Engineering Contradiction:
Improveretention timeVSAvoidprevention of dislodging
Core Design Contradiction:
Duration of action of stationary objectVSReliability

Solution Approach 1:

The angled ridges create a curved, arc-shaped engagement path with the soil that provides continuous mechanical interlocking. This curved geometry is more effective at preventing dislodging than straight or flat surfaces, transforming partial retention into reliable prevention against environmental forces.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 spike effectively secures edging products against environmental factors and withstands installation impacts, providing a durable and efficient anchoring solution that resists upward movement and frost heave.

Implementation Method 1

the upper edge of each ridge may dig into or engage the ground when the spike is urged or moved in an upward direction

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

A conical tip 18 may be provided at the opposite end of the head 14

Methodology Applied
Scientific EffectPressure: Pressure Increase

Implementation Method 3

Off center blows by the hammer onto the head may tend to break, dislodge or contort the head and adjacent portions of the shaft

Methodology Applied
Scientific EffectImpact Force: Impact Force

Data Source

PatentUS11313095B2Landscape and paver edging spike
Publication Date: 2022.04.26 DIMEX OFFICE PROD LLC
  • US11313095B2 patent drawing
  • US11313095B2 patent drawing
  • US11313095B2 patent drawing

AI summary

This invention in various embodiments is a spike for use with landscape and paver edging. The spike may include a generally circular disk-shaped head and opposite from the head is a tip of the spike. The spike may include one or more features for securing the spike in place once installed with the edging product. Another feature according to various embodiments of this invention of the spike is an upper head stabilizer. The stabilizer may extend from the shaft to an underside of the head. In some embodiments, the stabilizer may be provided in discrete sections and positioned diametrically opposite from one another on the shaft and the undersurface of the head. The stabilizer may support the entire radial dimension of the head and is joined to the shaft.