Horn Hook Retrieval for Snagged Cast Net Central Horn Release
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Solution Overview
Problem
Traditional methods for retrieving snagged cast nets often require users to enter the water, posing safety hazards and risking line or net damage, especially when snagged on underwater obstructions.
Innovation Solution
A cast net retrieving device with a dual line system comprising a hand line, horn line, and couplers, or a horn hook, which allows users to exert an uplifting force on the central horn and net webbing to alleviate tension in braille lines, enabling snagged nets to be freed without entering the water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If users pull harder on the hand line to retrieve a snagged cast net, then the net can be freed from minor snags, but it leads to hand line breakage, braille line breakage, or damage to the net itself
Solution Approach 1:
The retrieval system is divided into two independent lines: a hand line for controlling the net's deployment and a horn line for applying upward force to the central horn. This segmentation allows each line to perform its specific function without interfering with the other, preventing breakage while maintaining retrieval efficiency
Solution Approach 2:
The horn line acts as an intermediary element between the user and the central horn. By pulling the horn line through the couplers, the user indirectly applies controlled upward force to the central horn, which then releases the snagged net without requiring direct force application that could break lines
2Ease of operation
If users wade or swim into the water to free the net from underwater obstruction, then the net can be retrieved, but it poses safety hazards and is inconvenient and time-consuming
Solution Approach 1:
The system enables the cast net to free itself from underwater obstructions through the horn line mechanism. The upward force applied to the central horn automatically releases the net from snags without requiring users to enter the water, making the retrieval process safe and convenient
Solution Approach 2:
The horn line serves as an intermediary that transmits pulling force from the user to the central horn remotely. This allows the user to operate the net retrieval from the shore or boat, avoiding direct exposure to water hazards while still achieving net freedom
3Productivity
If users enter the water to retrieve snagged cast nets, then the net can be freed, but it causes lost fishing time and is dangerous in deep water with strong currents
Solution Approach 1:
The horn line system allows the net to be freed from underwater obstructions without human intervention in the water. The automated mechanism of pulling the horn line through couplers and applying force to the central horn eliminates the need for users to enter deep water, preserving both safety and fishing time
Solution Approach 2:
The traditional manual retrieval method requiring physical entry into water is replaced with a mechanical system using the horn line and couplers. This mechanical substitution allows remote operation of the net retrieval, eliminating the need for users to expose themselves to dangerous water conditions
Data Source
AI summary
A cast net retrieving apparatus is disclosed having a horn hook that includes an elongated member having an eyelet on its first end and having a hook on its opposing end. The horn hook has a hollow member formed adjacent to the elongated member. The hollow member is adapted to slidingly receive a hand line therethrough, such that a deployment of the horn hook along the hand line, the hand line slides through the hollow member, and the hook can removably connect to a central horn of a cast net. When the horn hook is connected to the central horn of the cast net, a pulling of the horn line that is connected to the horn hook exerts a pulling force upon the central horn of the cast net, which alleviates tension in the braille lines of the cast net thereby allowing a user to remove the cast net from being snagged on an underwater obstruction, while avoiding breakage of the braille lines and without the user needing to enter the water.