Fishing Weight Release Sleeve Mechanism
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Solution Overview
Problem
Existing fishing weight release devices are unreliable, often detaching at inappropriate times or failing to release when a fish is hooked, causing damage to the fish and potential loss of the catch.
Innovation Solution
A device for a Paternoster rig that uses a connecting means, holding means, outer sleeve, and inner sleeve configuration, where the inner sleeve is biased to hold weights in a first position and releases them to a second position when a hooked fish applies a pulling force, allowing the weight to be ejected from the rig.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thin line is used to connect the weight which is designed to break relatively easily, then the weight can be released when a fish is hooked, but the device becomes unreliable and the weight may detach when no fish is on the hook
Solution Approach 1:
The device uses a dynamic mechanism where the inner sleeve can move between a first position (holding the weight) and a second position (releasing the weight). The biasing element provides a dynamic force that maintains the holding position under normal conditions but allows transition to the release position when sufficient pulling force is applied by a hooked fish, resolving the contradiction between reliable holding and reliable release.
Solution Approach 2:
The inner sleeve acts as an intermediary component between the fishing line and the weight. It transmits the pulling force from the line to the weight while providing a controlled release mechanism. The sleeve mediates between the strong connection needed for reliable fishing and the weak connection needed for easy release, allowing the system to achieve both requirements.
2Object-affected harmful factors
If the weight is maintained at a distance from the hook to minimize physical damage, then fish welfare is improved, but the weight can still cause damage and become entangled
Solution Approach 1:
The device performs the release action in advance before the weight can cause harm through entanglement. When a fish is hooked, the pulling force automatically triggers the weight release mechanism, proactively removing the potential harm source (the weight) before it can become entangled or cause damage during the fish struggle.
Solution Approach 2:
The device extracts the harmful element (the weight) from the system when it is no longer needed. By automatically releasing the weight upon detecting a hooked fish through the pulling force, the harmful factor (weight that can cause damage or entanglement) is removed from the fishing rig, eliminating both mouth damage and entanglement risks.
3Object-affected harmful factors
If a complex release mechanism is used to ensure reliable weight release, then fish welfare is improved, but the device complexity increases
Solution Approach 1:
The device is self-activating and requires no external control or complex mechanisms. The pulling force generated by a hooked fish automatically triggers the release mechanism through the interaction of the inner sleeve, outer sleeve, and biasing element. This self-service approach achieves reliable weight release while maintaining relatively simple device construction.
Solution Approach 2:
The device replaces complex electronic or mechanical control systems with a simple passive mechanical mechanism. The biasing element (spring or elastic) provides the necessary holding force, and the friction-based interaction between the inner sleeve and outer sleeve provides the release mechanism, eliminating the need for complex actuators, sensors, or control systems while achieving reliable automatic release.
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 reliably releases the fishing weight when a fish is hooked, preventing damage to the fish and ensuring the weight does not become entangled, thereby improving fish welfare and increasing the chances of a successful catch.
Implementation Method 1
The inner sleeve is biased in the first position
Implementation Method 2
the application of a pulling force on the fishing line when a fish is hooked causes the inner sleeve to move from the first position to the second position
Data Source
Figure 1~1b
Figure 2~2b
AI summary
The present invention relates to a device used in fishing, and in particular, to a device for releasing a fishing weight when a fish is hooked, which device comprises: i) a connecting means (5) for attaching the device to a fishing line, ii) a holding means (1) for holding one or more fishing weights, and iii) a sleeve (3) which in a first position will hold the one or more weights on the holding means (1) and in a second position allows the one or more weights to be released from the holding means (1), the sleeve (3) being biased in the first position, wherein the device is configured such that the application of a pulling force on the fishing line when a fish is hooked causes the sleeve (3) to move from the first position to the second position.