Ligature Loop Attachment with Cinch Aperture for Knotless Strength
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Solution Overview
Problem
Existing hardware such as hooks and carabiners require knowledge of proper knot-tying to securely attach ligatures, which can fail under tension, and existing solutions like the Fish Bone knotless Rope Tie are open loop terminations that are not as strong as closed loop configurations.
Innovation Solution
A ligature attachment device with a cinch aperture configuration that frictionally holds a ligature in place, featuring a loop retainer to prevent slippage and a tool section for coupling with hardware, allowing for secure and removable attachment without the need for knot-tying, and can be paired for increased strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard hardware such as hooks and carabiners are used to attach ligatures, then the attachment can be made to hardware, but the user must be knowledgeable in tying proper knots which increases complexity and can fail under tension
Solution Approach 1:
The patent introduces a ligature attachment device as an intermediary component between the ligature and the hardware (hooks, carabiners, pulleys). This device features a cinch aperture that frictionally holds the ligature in place, eliminating the need for complex knot-tying while maintaining secure attachment. The device acts as a mediator that simplifies the attachment process while ensuring reliability under tension.
Solution Approach 2:
The patent replaces the mechanical knot-tying system with a friction-based cinch aperture system. Instead of relying on complex knot structures that require skill to tie and maintain, the invention uses a simplified aperture configuration that secures the ligature through friction, making the system easier to operate while maintaining or improving reliability.
2Strength
If open loop termination configurations are used, then the device structure is simpler, but the strength and security of ligature termination is reduced
Solution Approach 1:
The patent divides the termination system into distinct functional segments: the cinch aperture for securing the ligature, the loop retainer for maintaining loop structure, and the tool section for hardware coupling. This segmentation allows the device to achieve closed-loop strength while keeping each component relatively simple and manageable.
Solution Approach 2:
The patent transitions from simple open-loop configurations to a multi-dimensional closed-loop structure. The loop retainer creates a defined loop geometry that distributes forces more effectively, and the cinch aperture adds a dimensional element that frictionally secures the ligature, together achieving superior strength without excessive complexity.
3Ease of operation
If frictional holding mechanism is used in cinch aperture, then easy attachment and removal is achieved, but may slip under insufficient friction
Solution Approach 1:
The patent optimizes the frictional holding mechanism by carefully controlling geometric parameters of the cinch aperture, including its shape, size, and orientation. By adjusting these parameters, the device achieves sufficient friction to hold the ligature securely under load while maintaining ease of attachment and removal when force is applied. The loop retainer geometry is also optimized to work in conjunction with the cinch aperture for reliable frictional holding.
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
Provides a stronger and more secure ligature termination than open loop configurations, allowing for easy attachment and removal, and can accommodate various ligature sizes while maintaining structural integrity under tension.
Implementation Method 1
a cinch aperture to frictionally hold a ligature in place
Data Source
AI summary
A ligature attachment device for use with a ligature is disclosed, the ligature attachment device comprising a proximal section comprising a loop retainer section, a distal section comprising a tool section, a central section comprising a central ligature spool section having a centrally located cinch aperture and the central ligature spool section is coupled to the loop retainer section and the tool section. The loop retainer section having a loop retainer profile configured to retain a loop of the ligature frictionally engaged with the central ligature spool section. The cinch aperture having an aperture shape configured to allow at least two sections of a ligature to be removably retained in the cinch aperture whereby the cinch aperture can removably retain the loop of the ligature. The tool section comprises a first tool for removably joining a second tool.