Kite Quick Release Loop Decoupling Handle Forces
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Solution Overview
Problem
Existing control systems for kites in water and wind sports face issues such as unreliable quick release mechanisms due to coupling of forces, difficulty in releasing the second end of the loop without tools, twisting of landing lines, and lack of non-destructive disassembly solutions for the landing line tube.
Innovation Solution
A quick release loop assembly that decouples the release handle from forces transmitted through the loop, allows tool-less release of the second end of the loop, includes an automatic swiveling feature to untwist landing lines, and enables non-destructive disassembly of the landing line tube using a barbed insert and funnel-shaped configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the handle is coupled to the tensile forces transmitted from the kite to the harness via the loop, then the quick release mechanism can be activated by the transmitted forces, but the release force becomes unreliable and the handle creeps over time
Solution Approach 1:
The system is divided into two independent parts: the handle assembly and the force transmission path. The handle is decoupled from the tensile forces by introducing a separate activation mechanism that uses a release line or cable to trigger the quick release, while the tensile forces are transmitted through a separate path via the loop and harness. This segmentation eliminates the harmful coupling between handle operation and force transmission.
Solution Approach 2:
A release line or cable acts as an intermediary between the user's manual operation and the quick release mechanism. Instead of directly coupling the handle to the tensile forces, the release line transmits the activation force separately, allowing the handle to be actuated without being subjected to the full tensile load from the kite.
2Stability of the object's composition
If the second end of the loop is secured in a difficult-to-release fashion, then the loop remains stable during use, but it requires tools to release and change loops
Solution Approach 1:
The quick release mechanism at the second end of the loop uses a dynamic locking system that maintains stability during normal use but can be quickly released when needed. This may involve a cam-locked system, spring-loaded latch, or over-center mechanism that provides strong retention under load but can be easily disengaged by applying force in a specific direction or using a release tool.
Solution Approach 2:
The system allows for quick discarding of the loop from the harness by enabling easy release at the second end. The loop can be rapidly removed and replaced without tools or complex operations, facilitating quick changes between different loop configurations or sizes.
3Adaptability or versatility
If the landing line is allowed to rotate freely, then it can accommodate kite movements, but it twists and contracts causing turns in the kite
Solution Approach 1:
The system pre-configures the landing line routing and attachment points to maintain proper orientation and prevent twisting before it occurs. This may involve using guide pulleys, fixed attachment points on the kite frame, or pre-tensioned routing that keeps the landing line in a stable, non-twisting configuration during normal kite operations.
Data Source
AI summary
A control system for a kite having a quick release loop assembly includes a retention mechanism configured to release one end of the loop upon sliding a handle from a covered disposition to an uncovered disposition. The quick release assembly also includes a mechanism to untwist a landing line tube from a static line automatically, and to automatically index a landing line.