Multi-chamber carabiner prevents cross-loading

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Solution Overview

Problem

Conventional belay carabiners are prone to cross-loading scenarios due to rotational misalignment, which can expose the carabiner to non-lengthwise oriented tensile forces, leading to potential safety hazards, and existing designs often require complex engagement/disengagement processes and lack durability.

Innovation Solution

A multi-chamber carabiner design featuring a frame with both primary and secondary openings and a gate with corresponding portions, where the primary and secondary gate portions are either operationally dependent or independent, allowing for efficient separation of harness and belay device attachment points to prevent cross-loading, and utilizing a common pivot point and biasing mechanism for automatic operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional belay carabiners are used with a single enclosed region, then the structure is simple, but cross-loading occurs due to rotational misalignment exposing the carabiner to non-lengthwise oriented tensile forces

Engineering Contradiction:
Improveprevention of cross-loadingVSAvoidcarabiner structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The carabiner is divided into multiple independent enclosed regions (first enclosed region with first gate, second enclosed region with second gate) that can operate independently. This segmentation allows each region to be optimally oriented for its specific function, preventing cross-loading while maintaining overall structural simplicity.

Inventive Principle:
Principle #1Segmentation

2Reliability

If conventional carabiners restrict rotational freedom to prevent cross-loading, then cross-loading is reduced, but the engagement and disengagement processes become complex and multi-step

Engineering Contradiction:
Improveprevention of cross-loadingVSAvoidengagement and disengagement process
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The carabiner maintains full rotational freedom dynamically, allowing it to automatically orient itself optimally during use. The multiple enclosed regions are positioned at different orientations, enabling the carabiner to rotate into the correct configuration without requiring complex engagement procedures or restricting movement.

Inventive Principle:
Principle #15Dynamics

3Reliability

If conventional carabiners use a single gate mechanism, then the device is simple and cost-effective, but it cannot provide separate attachment points for harness and belay device to prevent cross-loading

Engineering Contradiction:
Improveprevention of cross-loadingVSAvoidgate mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The gate system is segmented into independent first and second gates, each controlling access to a separate enclosed region. This allows independent operation of each gate and enclosed region, enabling separate attachment points for harness and belay device while maintaining simple, cost-effective manufacturing for each individual gate component.

Inventive Principle:
Principle #1Segmentation

4Adaptability or versatility

If conventional carabiners provide a large enclosed region for belay devices, then belay functionality is optimized, but gate obstructions occur when coupling alternative types of belay devices to a harness

Engineering Contradiction:
Improvebelay device compatibilityVSAvoidgate obstructions
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The single large enclosed region is segmented into multiple smaller independent enclosed regions. This allows different belay devices to be coupled to different regions simultaneously without gate obstructions, as each region has its own gate that can be opened independently to accommodate various device sizes and configurations.

Inventive Principle:
Principle #1Segmentation

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 multi-chamber carabiner effectively prevents cross-loading during operation by separating harness and belay device attachment points, enhancing durability and simplifying the engagement process while maintaining cost efficiency.

Implementation Method 1

A gate biasing system is coupled to the frame and gate for purposes of mechanically biasing the gate toward the closed configuration with respect to the frame

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS9003617B2Multi-chamber carabiner
Publication Date: 2015.04.14 BLACK DIAMOND EQUIPMENT
  • US9003617B2 patent drawing
  • US9003617B2 patent drawing
  • US9003617B2 patent drawing

AI summary

An automatically locking carabiner system including a frame, a gate, a gate biasing system, and a gate locking system. The frame and gate form a continuously enclosed inner region in a closed configuration with respect to the frame. When in an engaged state, the gate locking system is configured to automatically lock the gate in the closed configuration with respect to the frame. The gate locking system may include a trigger coupled to the frame such that the position of the trigger corresponds to the state of the gate locking system. The trigger may be positioned on an opposite side of the frame from the gate with respect to the inner region. The force required to disengage the gate locking system may be substantially opposite that which is required to transition the gate to the open configuration with respect to the frame.