Extraction Device With Ratcheting Cable And Locking Legs
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Solution Overview
Problem
Existing lifting devices are inefficient for removing posts, bushes, or similar objects from the ground surface due to lack of stability and ease of use, particularly on uneven terrain and in compact storage.
Innovation Solution
A lifting device comprising pivotally coupled legs with a locking mechanism, a ratcheting mechanism, and a cable for securing and lifting structural objects, allowing for adjustable positioning and compact storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If existing lifting devices are used, then they can perform basic lifting functions, but they lack stability on uneven terrain and are difficult to store compactly
Solution Approach 1:
The device employs dynamically adjustable legs that can be extended or retracted to adapt to uneven terrain conditions. The legs are connected through joints that allow movement and positioning at different angles, enabling the device to maintain stability whether the ground is level or sloped. This dynamic adjustability directly addresses the contradiction by providing both stability and adaptability to various terrain conditions.
2Ease of operation
If existing lifting devices are used, then they can lift objects, but they are cumbersome and difficult to store
Solution Approach 1:
The device incorporates a telescopic leg structure where inner leg segments can be inserted into outer leg segments for compact storage. When not in use, the legs collapse into each other like nested dolls, significantly reducing the overall volume. This nesting mechanism allows the device to be easily stored in small spaces while maintaining full functionality when deployed.
Solution Approach 2:
The legs are divided into multiple segments or sections that can be independently adjusted and collapsed. Each leg consists of several telescopic sections that can be extended for operation and retracted for storage. This segmentation enables the device to transition between a compact storage state and a fully extended operational state, addressing both ease of operation and reduced storage volume requirements.
3Productivity
If existing lifting devices are used, then they can remove objects from ground, but they lack adjustable positioning capabilities
Solution Approach 1:
The device features dynamically adjustable legs with joints that allow positioning at various angles and heights. The legs can be extended or retracted and locked at different positions to accommodate objects of varying sizes and depths. This dynamic positioning capability enhances operational efficiency by allowing quick adaptation to different extraction scenarios without requiring multiple specialized devices.
Solution Approach 2:
The device includes pre-configured adjustment mechanisms that allow for quick setup and positioning before the actual extraction operation begins. The legs can be pre-positioned and locked at the required angles and heights, and the cable system can be pre-attached to the object, streamlining the overall extraction process and improving productivity.
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 device provides stability and ease of use for removing objects from the ground surface, accommodating uneven terrain and facilitating compact storage, enhancing operational efficiency and portability.
Implementation Method 1
A ratcheting mechanism is removably coupled to the connector. A cable is removably coupled to the ratcheting mechanism and is configured for extending around a structural object
Implementation Method 2
A pair of legs pivotally coupled together at respective first ends of the legs. A bar is pivotally coupled to a first one of the pair of legs
Implementation Method 3
A pair of legs pivotally coupled together at respective first ends of the legs. A bar is pivotally coupled to a first one of the pair of legs
Implementation Method 4
A projection is coupled to a second one of the legs. The projection is insertable into the notch to secure the legs in a static position relative to each other
Data Source
AI summary
An extraction device eases the task of removing a post, bush or the like from a ground surface. The device includes a pair of legs pivotally coupled together at respective first ends of the legs. A bar is pivotally coupled to a first one of the pair of legs. The bar has a notch extending upwardly into a bottom edge of the bar. A projection is coupled to a second one of the legs. The projection is insertable into the notch to secure the legs in a static position relative to each other. A connector is coupled to an associated one of the legs proximate the first end of the pair of legs. A ratcheting mechanism is removably coupled to the connector. A cable is removably coupled to the ratcheting mechanism for extending around a structural object for removing the structural object from the ground surface.