Knotless Line Attachment Using Compression Spring Collet
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Solution Overview
Problem
Existing methods for attaching the ends of lines, such as knots and splices, are cumbersome and difficult to manage in situations where manual dexterity is limited or tools are not available, and they often do not allow for easy detachment.
Innovation Solution
A hollow main body with end caps and collets that use a compression spring to create a press fit for securing line ends, allowing for quick attachment and detachment without the need for knots or tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If knots are used to attach line ends, then the connection is secure, but the operation becomes difficult when manual dexterity is limited
Solution Approach 1:
The patent replaces the manual knot-tying mechanical system with an automated press-fit mechanism. The compression spring automatically applies radial force to the collet to secure the line end, eliminating the need for manual dexterity to tie knots while maintaining secure connection through mechanical pressure.
Solution Approach 2:
The compression spring provides self-acting securing force that automatically engages when the line end is inserted into the collet. The system serves itself by using the insertion action to compress the spring and create the securing force, without requiring external manual manipulation to tie or secure the connection.
2Reliability
If splices are used to attach line ends, then the connection is secure, but additional tooling is required
Solution Approach 1:
The patent extracts the essential securing function from complex splicing operations and implements it through a simple press-fit mechanism. By removing the need for splicing tools and complex manipulation, the invention achieves secure connection through a straightforward insertion and compression spring engagement process.
3Reliability
If chemical adhesive splicing is used, then the connection is secure, but additional tooling and process complexity are required
Solution Approach 1:
The patent replaces chemical adhesive processes with a purely mechanical press-fit system. The compression spring provides the securing force mechanically, eliminating the need for chemical adhesives, heat guns, or adhesive application devices, thereby reducing process complexity while maintaining connection security.
4Reliability
If knots are used to attach line ends, then the connection is secure, but detachment becomes difficult
Solution Approach 1:
The patent creates a dynamic connection that can easily transition between secured and detached states. The compression spring can be compressed to release the collet from the line end, allowing easy detachment when needed, while maintaining secure connection during normal operation. This dynamic mechanism contrasts with static knots that are difficult to untie.
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 secure and easy attachment and detachment of line ends without the need for knots or tools, suitable for users with limited dexterity or in situations where tools are not available, such as fishing or camping.
Implementation Method 1
A compression spring may be in direct or indirect contact with structure forming a part of, or in communication with, the collet on one end... and with a surface of the collet housing on the other end, such that it provides a force tending to push the collet housing further along the collet, forcing the collet void to be reduced and to be compressed against a line end portion passing through the collet
Implementation Method 2
a portion of the collet material in the region of the conically-shaped section removed forming a void in the conically shaped section of the collet, allowing the conically shaped section to be deformed when acted upon by a force or forces transverse to the collet axis, such as a squeezing force
Data Source
AI summary
A line attaching apparatus, system and method for attaching to a line end without the need for tying a knot. The invention further comprises a line attaching apparatus, system and method for attaching to a first line end portion to a second line end portion without the need for tying a knot. The line end portions may be captured in a collet having a line retention and a line insertion/removal state. The collet may be biased into a line retention state by a biasing force that causes the collet to close around a line, preventing the line from translating within the collet. The line insertion/removal state may be achieved by motivation of a plunger against the biasing force, allowing the collet to open so that a line moves freely within the collet opening. An exemplary, non-limiting use is the attachment of a lure or hook to a fishing line.