Stake Extraction Device With Beveled Dowel And Torque Mechanism

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Solution Overview

Problem

Existing methods for extracting stakes from substrates are labor-intensive, bulky, and inefficient, with manual tools being cumbersome and powered machines being large and costly, lacking a portable and efficient solution.

Innovation Solution

A lightweight device with a tapered handle and a beveled dowel end that can be manually inserted into a stake hole, allowing torque application to loosen the stake, followed by a pulling force for removal, facilitating efficient extraction without the need for heavy machinery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual leverage tools are used to remove stakes, then extraction capability is improved, but the tools become bulky and difficult to transport

Engineering Contradiction:
Improveextraction capabilityVSAvoidtool portability
Core Design Contradiction:
ProductivityVSWeight of moving object

Solution Approach 1:

The device is divided into three main segments: a handle portion for user grip, an intermediate portion for structural connection, and a dowel portion for engagement with the stake. This segmentation allows each part to be optimized for its specific function while keeping the overall device compact and portable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of using a large external tool to lever against the stake, the device inverts the approach by inserting a small dowel into a hole in the stake and using rotational torque applied to the handle to extract the stake. This inversion transforms the extraction mechanism from external leverage to internal engagement with rotational force.

Inventive Principle:
Principle #13The other way round (Inversion)

2Productivity

If powered machines are used to remove stakes, then extraction efficiency is improved, but size and cost increase excessively

Engineering Contradiction:
Improveextraction efficiencyVSAvoidmachine size and cost
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The device is designed to be self-contained and manually operated, requiring no external power source or complex mechanical systems. The user's hand movements directly generate the rotational torque needed for extraction, eliminating the need for engines, hydraulics, or electrical systems.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The device uses simple, inexpensive materials such as wood or plastic for the handle and intermediate portions, with a steel dowel for durability where needed. This selective use of materials keeps costs low while maintaining sufficient performance for the extraction task.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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 efficient and portable manual extraction of stakes, reducing labor and cost by providing a compact, effective tool that can be easily transported and used without the bulkiness and expense of powered machines.

Implementation Method 1

a beveled edge enabling engagement with a hole in an object

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

a user can apply torque in a clockwise or counterclockwise direction several times to loosen the stake from the substrate

Methodology Applied
Scientific EffectTorque: Torque

Data Source

PatentUS11623851B2Stake extraction device and method
Publication Date: 2023.04.11 KASTELLO KYLE
  • US11623851B2 patent drawing
  • US11623851B2 patent drawing
  • US11623851B2 patent drawing

AI summary

Devices and methods for extracting objects from substrates are disclosed. One embodiment has a first end with a tapered handle and a second end with a dowel. The dowel can be a steel dowel and include a beveled edge enabling engagement with a hole in an object. Another embodiment can include an intermediate portion connected to and located between the first and second ends. The device can be manually inserted into a hole in a stake. Once engaged with the stake, a user can apply torque in a clockwise or counterclockwise direction several times to loosen the stake from the substrate. When loosened from the substrate, a user can apply a pulling force away from the substrate to remove the stake.