Helical Coil Decoy Stake for Stable Ground Anchoring
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Solution Overview
Problem
Existing decoy stakes for supporting game decoys above the ground often fail to provide a secure and stable anchor, especially in soft or muddy conditions, as they rely on single or dual straight spikes which are not effective in holding the decoy firmly.
Innovation Solution
A rotary auger decoy mounting stand with a helical coil at the bottom end for screwing into the ground, combined with an S-shaped handle and multiple decoy receiver tubes for secure attachment and positioning of decoys, providing a more stable anchor and preventing spinning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If straight spikes are used for ground attachment, then the structure is simple, but the stability in soft or muddy conditions deteriorates
Solution Approach 1:
The patent changes the geometric parameter of the ground attachment from straight spikes to helical coils. This parameter change transforms the interaction mechanism with the ground from piercing to screwing, providing superior anchoring in soft or muddy conditions while maintaining structural simplicity.
Solution Approach 2:
The patent applies curvature by designing the ground attachment as helical coils rather than straight lines. The helical shape allows the attachment to rotate and embed itself into the ground, creating a screw-like anchoring effect that significantly improves stability in soft terrain compared to straight spikes.
2Ease of manufacture
If straight spikes are used for ground attachment, then the manufacturing is simple, but the prevention of spinning deteriorates
Solution Approach 1:
The helical coil design inherently prevents spinning by creating a screw-thread engagement with the ground. As the stake is rotated during installation, the helical coils cut into the ground and lock in place, making it extremely difficult for the stake to spin or rotate once installed, thus improving positional stability.
3Device complexity
If single spike design is used, then the device complexity is low, but the firm connection to ground deteriorates
Solution Approach 1:
The patent changes the attachment parameter from single-point contact (straight spike) to distributed helical contact. The helical coils distribute the anchoring force along the length of the stake, creating multiple engagement points with the ground that collectively provide a much firmer connection while adding minimal complexity to the overall device.
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 helical coil design offers a superior ground attachment, ensuring a stable and secure support for decoys even in soft or muddy conditions, enhancing the effectiveness of decoy placement during hunting.
Implementation Method 1
The helical coil or flights forming an auger having a point at the lower distal end to be fixedly and removably screwed into the ground
Implementation Method 2
The helical coil or flights forming an auger having a point at the lower distal end to be fixedly and removably screwed into the ground to support the stand in an upright position
Data Source
AI summary
A decoy for holding decoys in position to attract waterfowl or game birds such as doves or ducks. The stake may comprise a single shaft or multiple shaft portions that are fixed together by a connection means such as a pin extending thorough coaxial sections. The shaft includes a helical coil at the bottom end for fixedly screwing that end of the stake into the ground. A central rod defining a shaft includes an integral S-shaped handle providing a crank handle for screwing the shaft into the ground. A decoy holding means such as a sleeve or receiver extends from a top distal end of the shaft and a pair of opposing decoy holding means such as sleeves or receivers can extend upward and/or outward at selected angles from the upper portion of the support shaft for supporting cross members having additional decoys mounted thereon.