Vehicle-Attached Tong Tool for Post Extraction
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Solution Overview
Problem
Existing tools lack an efficient method for removing posts, small trees, and bushes from the ground, as they often fail to securely grasp and extract such objects without causing damage or requiring excessive manual effort.
Innovation Solution
A post-extracting tool comprising a pair of tongs with co-planar jaws equipped with teeth and a pivot mechanism, allowing the tool to be positioned around the object and pulled by a vehicle, which closes the jaws to securely grasp and lift the object from the ground.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a vehicle is used to pull the tool, then extraction efficiency and power are improved, but device complexity increases due to the need for loops and vehicle attachment mechanisms
Solution Approach 1:
The tool is divided into functionally independent components: the tong mechanism with jaws and teeth for grasping, loops for attachment, and a pivot point for mechanical action. This segmentation allows each component to perform its specific function efficiently while being attachable to different vehicle types, thus improving productivity without permanently increasing overall system complexity.
Solution Approach 2:
The tool design incorporates universal features that allow it to be attached to various vehicle types (tractors, trucks, bulldozers) through the loops. The same tong structure can extract different objects (posts, trees, bushes) by adjusting jaw positioning, making the device multi-functional and adaptable without requiring complex specialized mechanisms for each application.
2Reliability
If teeth are added to the jaws to securely grasp the object, then grasping reliability is improved, but manufacturing complexity increases
Solution Approach 1:
Teeth are added only to specific locations on the jaws where contact with the object is required, rather than complicating the entire jaw structure. This localized addition of teeth provides the necessary grasping reliability while keeping the manufacturing process relatively simple, as only specific portions of the jaws require tooth formation through standard machining or forging operations.
3Reliability
If the jaws are made co-planar with teeth, then grasping effectiveness is improved, but device complexity increases
Solution Approach 1:
The co-planar arrangement of teeth on opposing jaws creates an asymmetric yet balanced grasping configuration that effectively engages objects of various shapes and sizes. This asymmetric tooth positioning on co-planar surfaces improves grasping effectiveness by distributing force evenly across the object while maintaining a relatively simple hinge-based mechanical structure, thus avoiding excessive device complexity.
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 tool effectively removes posts and other embedded objects by securely biting into them with its teeth, allowing for efficient extraction with minimal manual effort and reducing the risk of damage to the object or surrounding area.
Implementation Method 1
Each arm of the tongs comprises a lever, a jaw and a loop. The arms of the tongs pivot at a pivot point.
Implementation Method 2
Each jaw has teeth that can bite into the object being removed.
Data Source
AI summary
The post-extracting tool is a pair of tongs adapted to remove posts, small trees, and bushes from the ground. Each arm of the tongs comprise a lever, a jaw and a loop. Each jaw has teeth that can bite into the object being removed. The arms of the tongs pivot at a pivot point. The post-extracting tool can be position near the object being removed with a set of teeth on either side of the object. A vehicle can be used to pull on the loops, simultaneously pulling the arms together so that the teeth bite into the object and pulling the tool and the object away.