Powered Hammer Rod Attachment With Pivoting Jaws for Ground Rod Driving

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Solution Overview

Problem

Existing methods for driving long metal ground rods into the ground are inefficient and require manual lifting and holding of the rod during the driving process, leading to operator fatigue and potential marring of the rod surface.

Innovation Solution

A powered hammer attachment with a clamping mechanism and pivoting jaws that allows for secure engagement and axial impacts to drive the rod into the ground, enabling offset and inline impact operations to facilitate efficient rod insertion without manual lifting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual lifting and holding of the rod is used during the driving process, then the rod can be positioned for impact, but operator fatigue increases and rod surface may be marred

Engineering Contradiction:

Improverod positioningVSAvoidoperator fatigue

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The attachment device serves as an intermediary between the operator and the rod, providing a mechanical platform that holds the rod securely during impact. The attachment includes a rod holder with clamping jaws that grip the rod, eliminating the need for manual lifting and holding while preventing surface damage through controlled engagement points.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The attachment device is designed to self-position and self-hold the rod through its mechanical structure. The rod is inserted into the rod holder and secured by spring-loaded or actuated clamping jaws that automatically engage and maintain proper positioning without requiring continuous manual intervention.

Inventive Principle:

Principle #25Self-service

2Ease of operation

If manual lifting and holding of the rod is used, then rod positioning is possible, but rod surface damage may occur

Engineering Contradiction:

Improverod positioningVSAvoidrod surface marring

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The attachment device replicates the essential function of manual rod positioning and holding, but through mechanical means that eliminate harmful human contact. The clamping jaws and positioning mechanisms copy the positioning function while avoiding the adverse effects of manual handling.

Inventive Principle:

Principle #26Copying

3Productivity

If powered hammer with clamping mechanism is used, then rod driving efficiency increases, but device complexity increases

Engineering Contradiction:

Improverod driving efficiencyVSAvoidattachment structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The attachment device is designed as a universal platform that can accommodate different rod sizes and types through adjustable clamping mechanisms. The same basic structure handles rod positioning, clamping, and impact transmission, eliminating the need for multiple specialized tools while maintaining high productivity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The attachment incorporates dynamic elements such as spring-loaded clamping jaws, actuated positioning mechanisms, and flexible mounting interfaces that adapt to different operating conditions. These dynamic features allow the device to maintain effectiveness across various rod configurations without requiring complex customizations.

Inventive Principle:

Principle #15Dynamics

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 attachment enables efficient and secure driving of ground rods into the ground, reducing operator fatigue and minimizing rod surface damage, while allowing for convenient handling and stable operation at a comfortable height.

Implementation Method 1

The powered hammer can be activated to deliver repeated axial impacts to the impact portion of the attachment

Methodology Applied

Scientific EffectImpact Force: Impact Force

Implementation Method 2

The first jaw can be pivoted relative to the attachment such that the first jaw is engaged with the rod. The second jaw can be pivoted relative to the attachment such that the second jaw is engaged with the rod

Methodology Applied

Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentUS20260048492A1Attachment for powered hammer

Publication Date: 2026.02.19 MILWAUKEE ELECTRIC TOOL CORP

AI summary

A method of driving a rod into the ground includes coupling an impact portion of an attachment to a powered hammer. The rod is positioned between a first jaw of the attachment and a second jaw of the attachment. The first jaw is pivoted relative to the attachment such that the first jaw is engaged with the rod. The second jaw is pivoted relative to the attachment such that the second jaw is engaged with the rod. The powered hammer is activated to deliver repeated axial impacts to the impact portion of the attachment.