Adjustable Bill Fishing Lure with Spring Pin Depth Control
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Solution Overview
Problem
Existing fishing lures lack the ability to adjust depth and provide multiple line attachment points, limiting their versatility and effectiveness.
Innovation Solution
A variable depth fishing lure with an adjustable bill and multi-position line eyelets, featuring a hollow body, spring pin mechanism, and treble hooks, allowing for adjustable depth settings and multiple line attachments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed bill position is used in traditional fishing lures, then the structure is simple and easy to manufacture, but the depth control capability is limited and cannot be adjusted
Solution Approach 1:
The bill is made adjustable through horizontal slots that allow it to be positioned at multiple depths. The spring pin mechanism enables the bill to be moved between different horizontal positions, transforming a static structure into a dynamic, adjustable one that can adapt to various fishing depths while maintaining operational simplicity
Solution Approach 2:
The bill structure is divided into segments that can be repositioned along horizontal slots. The bill includes a body boss with horizontal slots that allow the bill to be segmented and repositioned at different depths, enabling depth adjustment without requiring a completely complex mechanism
2Adaptability or versatility
If multiple line attachment points are added to the lure, then the versatility and fishing effectiveness are improved, but the device complexity increases
Solution Approach 1:
Multiple line holes are provided on the body at different positions, allowing a single lure to serve multiple fishing techniques and preferences. This universal design enables anglers to attach lines at various points depending on the desired lure action and fishing conditions, increasing versatility without requiring separate lures for different purposes
Solution Approach 2:
Line holes are strategically positioned at specific locations on the body including the top surface and front portion. Each location provides different lure behavior and depth control characteristics, allowing anglers to select the optimal attachment point for specific fishing scenarios while maintaining a relatively simple overall structure
3Manufacturing precision
If the bill is made adjustable with spring pin mechanism, then the depth setting precision is improved, but the ease of operation decreases
Solution Approach 1:
The spring pin mechanism provides precise depth positioning through defined horizontal slots, offering more precision than necessary for casual fishing. While this increases precision, it requires slightly more effort to adjust compared to a simple fixed bill, representing a trade-off between precision and ease of operation that benefits serious anglers who require accurate depth control
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 adjustable depth settings and secure line attachments, enhancing fishing lure versatility and effectiveness by allowing anglers to change the lure's position and attach lines at various points, improving catch rates.
Implementation Method 1
An opposing end of the spring pin is inserted into a compression spring. The opposing end of the spring pin is terminated with a nut or the like to retain the compression spring. The compression spring biases the adjustable bill against the front of the hollow body.
Data Source
AI summary
A variable depth fishing lure preferably includes a hollow body, an adjustable bill, a spring pin device and at least one treble hook. The hollow body includes a first body half and a second body half. The adjustable bill includes an indexing portion and a bill portion. Indexing slots are formed in a front and inside surface of the first and second body halves to receive the indexing portion. The spring pin device preferably includes a first eyelet pin, a second eyelet pin, a compression spring and two bored contact balls. One end of the spring pin device is engaged with the adjustable bill and an opposing end thereof is engaged with at least one of the first and second body halves. A position of the adjustable bill is changed by pulling thereof away from the hollow body; tilting it either up or down and then releasing.