Digging Auger Paddle Attachment for Soil Clearance
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Solution Overview
Problem
Conventional augers face the issue of soil falling back into dug holes, necessitating additional labor for removal, as existing solutions are inefficient and cumbersome.
Innovation Solution
A digging auger equipped with a paddle attachment that extends radially from the shaft to clear loose soil from the hole mouth, featuring a collar, metal strips, rubber strips, and button bolts for secure attachment, allowing efficient removal of soil without requiring extra labor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional auger is used to dig holes, then the auger can remove soil from the ground, but the removed loose soil falls back into the dug hole, requiring additional labor for removal
Solution Approach 1:
The paddle attachment is positioned to clear loose soil from the hole mouth during the augering process itself, before the soil can fall back into the hole. This preliminary clearing action eliminates the need for subsequent manual soil removal, directly resolving the contradiction between digging efficiency and additional labor requirements
2Ease of operation
If a special hole cleaning device with long arm scoops is used to remove fallen soil, then soil removal capability is improved, but the device becomes difficult to use and cumbersome
Solution Approach 1:
The invention extracts the soil clearing function from a separate, complex hole cleaning device and integrates it directly onto the auger shaft via a simple paddle attachment. This eliminates the need for cumbersome long arm scoops while maintaining effective soil clearing capability, resolving the contradiction between soil removal capability and device complexity
3Productivity
If a clearing blade is provided near the top of the flight as in U.S. Pat. No. 4,807,710, then some loose soil can be cleared, but the design is not suitable to remove all close soil, leaving risk of soil falling back into the hole
Solution Approach 1:
The paddle attachment is positioned to dynamically clear soil during the augering operation, with its radial extension from the shaft allowing it to effectively sweep away loose soil as the auger rotates and advances. This dynamic clearing action provides more reliable soil containment compared to static blade designs, resolving the contradiction between clearing effectiveness and soil containment reliability
Data Source
AI summary
The present invention is a digging auger. The digging auger comprises a shaft with a proximal end and a distal end. The digging auger also comprises a screw extending from the proximal end to the distal end of the shaft. The digging auger further comprises a paddle attachment adapted to be removably attached at the proximal end of the shaft. The paddle attachment comprises two pieces of rubber strips arranged on opposing sides of the shaft and extending generally radially outwards therefrom.