Quad Anchor System With Segmented Loops For Climbing Safety
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Solution Overview
Problem
Climbers face bulkiness and potential for human error when using hand-tied quad anchors, which can lead to anchor point failure due to incorrectly tied knots and wear points, reducing the system's portability and increasing the risk of accidents.
Innovation Solution
A quad anchor system with permanently configured loops made of flexible materials like ultra-high molecular weight polyethylene, featuring clear attachment points and load distribution to minimize user error and bulkiness, using pinch points and spring hooks for secure attachment to anchor points and loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If climbers carry permanently tied quad anchor systems, then portability is improved, but wear points in knots lead to increased failure risk
Solution Approach 1:
The quad anchor system is divided into separate modular components: two attachment loops and an intermediate loop, each functioning independently. This segmentation eliminates the need for permanently tied knots while maintaining portability, as climbers can carry the separate components and assemble them when needed without creating wear points.
Solution Approach 2:
The attachment loops are pre-formed with clearly defined attachment points and pinch points that indicate where carabiners should be clipped. This preliminary configuration reduces user error during assembly while allowing the system to remain portable and free from permanent knot wear.
2Adaptability or versatility
If climbers construct quad anchors on site, then flexibility is improved, but user error in knot tying increases
Solution Approach 1:
The system incorporates distinct local features at critical points: pinch points indicate where carabiners should be clipped on the attachment loops, and the intermediate loop has a clearly defined attachment point. These localized quality markers guide users through the assembly process, reducing errors while maintaining on-site construction flexibility.
Solution Approach 2:
The system uses visual differentiation through color-coded or distinctly marked pinch points and attachment points on the loops. This visual guidance system helps climbers correctly identify where to clip carabiners, significantly reducing user error during on-site assembly while preserving the flexibility to construct anchors as needed.
3Device complexity
If traditional quad anchor configurations are used, then simplicity is maintained, but American Death Triangle configuration risk increases
Solution Approach 1:
The system uses an asymmetric arrangement where the intermediate loop is positioned between the two attachment loops in a specific configuration that prevents the formation of an American Death Triangle. This asymmetric design maintains simplicity in assembly while inherently preventing the dangerous configuration through its geometric arrangement.
Solution Approach 2:
Instead of having loops nested entirely within one another as in traditional configurations, this system inverts the arrangement by positioning the intermediate loop between the attachment loops with proper spacing. This inverted configuration eliminates the risk of American Death Triangle formation while maintaining operational simplicity.
Data Source
AI summary
A quad anchor can have a first attachment loop and a second attachment loop. Each of the first and second attachment loops are operable to connect to an anchor point. The quad anchor can also include an intermediate loop disposed between the first attachment loop and the second attachment loop and joined to the first attachment loop and the second attachment loop. The intermediate loop is operable to connect to a load to be supported by the quad anchor.