Counter-Balanced Double 4-Bar Linkage for Single-Operator Auger

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Solution Overview

Problem

Conventional vehicular auger implements require two operators to maintain vertical alignment and stability, especially on uneven terrain, and often necessitate duplicate engines for power, which is costly and cumbersome.

Innovation Solution

A vehicular auger implement with a central articulating section using a spring or gas shock counter-balanced double 4-bar linkage, allowing single-operator operation and maintaining vertical alignment on slopes, coupled with a hydraulic power take-off system to eliminate the need for duplicate engines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional vehicular auger implements are used, then the auger can operate on various terrains, but two operators are required to maintain vertical alignment and stability

Engineering Contradiction:
ImproveNumber of operators requiredVSAvoidLinkage system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The linkage system is divided into two independent 4-bar linkages: a upper 4-bar linkage controlling vertical motion and a lower 4-bar linkage controlling lateral motion. This segmentation allows each linkage to handle specific degrees of freedom, enabling single-operator control while maintaining stability on uneven terrain.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The linkage system incorporates dynamic adjustment capabilities through spring or gas shock counter-balancing mechanisms that automatically adapt to terrain variations. The counter-balanced linkages dynamically adjust their positions to maintain vertical alignment of the auger bit regardless of vehicle movement or ground slope.

Inventive Principle:
Principle #15Dynamics

2Power

If duplicate engines are added to provide sufficient power, then the auger can operate effectively, but equipment costs and complexity increase

Engineering Contradiction:
ImproveAuger power outputVSAvoidEngine system complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The patent combines the power requirements for both vertical and lateral linkage operation into a single engine system. The counter-balanced linkage design reduces peak power demands by distributing the load, allowing one engine to provide sufficient power for the entire auger assembly without requiring duplicate engines.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

Spring or gas shock counter-balancing mechanisms are used to offset the weight and inertial forces of the linkage components. This counterbalancing reduces the net power required from the engine to move the linkages, eliminating the need for additional engines while maintaining adequate power for auger operation.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

3Productivity

If a single operator controls the auger, then operation efficiency increases, but maintaining vertical alignment on slopes becomes difficult

Engineering Contradiction:
ImproveOperator efficiencyVSAvoidVertical alignment precision
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The counter-balanced linkage system provides self-aligning functionality through spring or gas shock mechanisms that automatically compensate for terrain slopes. The system self-adjusts to maintain vertical alignment without requiring the operator to manually correct positioning, enabling both high productivity and precise alignment control.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The mechanical design of the counter-balanced linkages provides inherent feedback through the spring and gas shock elements, which continuously adjust their force output in response to changes in terrain angle and auger position. This passive feedback mechanism maintains vertical alignment precision while allowing single-operator control.

Inventive Principle:
Principle #23Feedback

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

Enables safe, efficient, and cost-effective single-operator operation of augers on various terrains without the need for duplicate engines, reducing operator fatigue and equipment costs.

Implementation Method 1

A vehicular auger implement with a central articulating section using a spring or gas shock counter-balanced double 4-bar linkage

Methodology Applied
Scientific EffectSpring: Spring

Implementation Method 2

A vehicular auger implement with a central articulating section using a spring or gas shock counter-balanced double 4-bar linkage

Methodology Applied
Scientific EffectGas shock:

Implementation Method 3

The implement includes a four bar linkage comprising a first bar, a second bar, a third bar, and a fourth bar. The four bar linkage is configured to convert a rotational motion of the second bar to a vertical motion of the auger.

Methodology Applied
Scientific EffectFour-bar linkage: Four-Bar Linkage

Data Source

PatentUS10787861B2Vehicular auger implement
Publication Date: 2020.09.29 BRIGGS & STRATTON CORP
  • US10787861B2 patent drawing
  • US10787861B2 patent drawing
  • US10787861B2 patent drawing

AI summary

A vehicular auger implement. The implement is configured to be operated by a single operator and comprises an auger having a bit. The implement includes a four bar linkage comprising a first bar, a second bar, a third bar, and a fourth bar. The first bar is coupled to each of the second bar and a hydraulically actuated arm. The auger is operably coupled to the fourth bar. The four bar linkage is configured to convert a rotational motion of the second bar to a vertical motion of the auger. A vehicle to which the auger implement is coupled is configured to remain stationary while a hole is bored using the vertical motion of the auger.