Hand-Held Fishing Line Joining Device
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Solution Overview
Problem
Current methods for joining fishing lines, such as knot-tying, metal crimping, and welding, often weaken the line strength due to compression, abrasion, or improper bonding, especially when joining lines of different materials or sizes, leading to premature breakage.
Innovation Solution
A hand-held device that holds fishing lines in a non-contacting parallel orientation within a closed chamber, where a flowable adhesive or polymer sheath is applied to encase and bond the lines without compressing or deforming them, using a lower melting temperature material to create a strong and durable bond.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If knot-tying, metal crimping, or welding methods are used to join lines, then the lines can be attached together, but the line strength is weakened due to compression, abrasion, or improper bonding
Solution Approach 1:
A flowable adhesive or polymer sheath is introduced as an intermediary bonding material between the line segments. This mediator encapsulates the lines without requiring direct compression or contact between them, eliminating the mechanical damage caused by traditional methods while providing strong chemical bonding as the adhesive cures or the polymer solidifies.
Solution Approach 2:
The patent replaces mechanical joining methods (knot-tying, crimping, welding) with a chemical bonding system. Instead of using mechanical force to join lines, the flowable adhesive or polymer provides chemical bonding through adhesion and encapsulation, eliminating the need for compression, friction, or heat that damages the line material.
2Ease of manufacture
If compression is applied to bond lines together, then the lines can be joined, but the physical integrity of the lines is impaired and bond strength is reduced
Solution Approach 1:
The flowable adhesive or polymer sheath acts as a mediator that enables bonding without direct line-to-line compression. The adhesive is applied to the lines and allows them to bond through the adhesive medium, eliminating the need for mechanical compression that would damage the line structure.
Solution Approach 2:
The patent changes the bonding mechanism from mechanical compression to chemical bonding. By using a flowable adhesive that cures or a polymer that solidifies, the bonding process occurs through parameter changes in the adhesive material rather than through applied mechanical force on the lines, preserving line integrity while achieving strong bonds.
3Reliability
If special equipment or tooling is used for welding or crimping, then bonding can be achieved, but the device complexity increases and adaptability to different line materials and sizes is reduced
Solution Approach 1:
The flowable adhesive or polymer sheath provides a universal bonding solution that works with different line materials (monofilament, braided, different polymers) and sizes. The adhesive can be applied to various line configurations and will bond to different materials through adhesion, eliminating the need for material-specific or size-specific tooling required by welding or crimping systems.
Solution Approach 2:
The adhesive serves as a universal intermediary that facilitates bonding between diverse line materials. Rather than requiring the lines themselves to be compatible with specific welding or crimping processes, the adhesive mediator creates a bonding interface that works across different material types and dimensions.
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 solution enables quick, easy, and reproducible joining of lines with improved bond strength, exceeding the original line strength by avoiding compressive stresses and maintaining the physical integrity of the lines, suitable for various line materials and sizes.
Implementation Method 1
a flowable adhesive or polymer sheath is applied to encase and bond the lines without compressing or deforming them, using a lower melting temperature material
Implementation Method 2
using a lower melting temperature material to create a strong and durable bond
Data Source
AI summary
A hand-held device for joining fishing line segments of monofilament, fluorocarbon, and/or braid lines of similar or differing sizes or combinations or securing hooks or other components to at least one line. The device includes an encasement for orienting the fishing line segments in a closed chamber in close, non-contacting orientation. A material is injected into the closed chamber to encase the lines. This material can be adhesive material or a flowable polymer material having a melting temperature lower than the line segments to be bonded. A pre-formed, flexible polymer sheath is used to retain the line segments in the chamber. A heater heats the polymer sheath within the encasement to allow the polymer to flow and encase the line segments without melting the line segments. Bonding of the line segments can be achieved without melting, abrading, compressing, or impairing the integrity the line segment(s) to be encased.