Post Driving Collar for Offset Force Application and Extraction
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Solution Overview
Problem
Existing methods for driving and removing steel fence posts, such as T-posts, into and from the ground are inefficient and often require manual labor or cumbersome tools, which can lead to post bending and difficulty in accessing the top for driving forces.
Innovation Solution
A collar system with a first portion defining a post opening and a second portion adapted for receiving a driving tool, allowing for offset driving forces and easy orientation change for extraction, facilitating both driving and removing posts using integrated or separable components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a post driver is placed over the end of the post and forces are applied along the longitudinal axis, then the post can be driven into the ground, but the post may bend and it is difficult to access the top for applying driving forces
Solution Approach 1:
The collar acts as an intermediary device between the driving tool and the post. It couples to the post at a lower position and provides an offset interface for applying driving forces, eliminating the need to access the top of the post while preventing bending through its structural design
Solution Approach 2:
The collar introduces an offset dimension by positioning the driving interface away from the longitudinal axis of the post. This allows forces to be applied from the side rather than requiring access to the top end, solving the accessibility problem while maintaining post integrity
2Productivity
If manual pulling or digging is used to remove posts, then posts can be removed from the ground, but the process is inefficient and requires significant manual labor
Solution Approach 1:
The collar is designed as a multi-functional tool that can be used for both driving posts into the ground and removing them. The same collar structure accommodates both driving tools and extraction tools, eliminating the need for separate removal equipment and significantly improving productivity
Solution Approach 2:
The collar enables post removal by inverting the driving process - instead of pushing forces into the ground, pulling forces are applied through the same collar interface to extract the post, making removal as efficient as installation
3Productivity
If driving forces are applied directly to the top of the post, then posts can be driven into the ground, but it is difficult to access the top and the post may bend
Solution Approach 1:
The collar serves as a mediator that transfers driving forces from an accessible offset position to the post. This allows operators to apply forces at a convenient location rather than reaching the top of the post, improving ease of operation while maintaining driving efficiency
Data Source
AI summary
A collar is provided that can be used to either drive posts into the ground or remove posts from the ground. The collar includes a first portion defining a post opening adapted for coupling about a post, and a second portion coupled to the first portion. The second portion includes a receiver adapted for receiving a tool for use in driving the post into the ground when the first portion is coupled about the post. The first portion defines an obtuse angle with respect to the second portion. The collar is configured to be positioned in a first orientation about a post when used to drive the post into the ground, and a second orientation, rotated approximately 180 degrees relative to the first orientation, when used to remove a post from the ground.