Double Carabiner Sliding Lock to Prevent Gate Dislodgment

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Solution Overview

Problem

Carabineers often detach undesirably due to gate dislodgment during movement, leading to the opening of the gate and detachment from attachment points.

Innovation Solution

A locking mechanism featuring sliding locks that can move between locked and unlocked positions, positioned in notches on the carabineer body, prevents the gate from opening by pressing against a notch, ensuring secure attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional carabineer gate is used, then the device is simple and easy to operate, but the gate may dislodge during movement causing unwanted detachment

Engineering Contradiction:
Improvegate securityVSAvoidlocking mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sliding lock mechanism transitions between static locked and unlocked states dynamically. The lock slides along the gate structure, providing a secure locked position during movement and an accessible unlocked position when needed, resolving the contradiction between security and operability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sliding lock acts as an intermediary element between the gate and the carabineer body. It mediates the connection by providing an additional securing mechanism that prevents direct gate-dislodgment while maintaining the simplicity of the original gate structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a sliding lock mechanism is added to prevent gate dislodgment, then gate security is improved, but the device complexity increases

Engineering Contradiction:
Improveattachment securityVSAvoidgate operation simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking function is segmented from the main gate structure into a separate sliding lock component. This allows the gate to remain simple for opening/closing operations while the distinct sliding lock provides the security function, reducing operational complexity despite added security features.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sliding lock mechanism is designed to be self-latching when in the locked position, requiring only a simple sliding motion to engage or disengage. The mechanism serves itself by maintaining security automatically once locked, minimizing the operational effort required from the user.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3871550A1Systems and methods for a locking double carabineer
Publication Date: 2021.09.01 NITE IZE INC
  • EP3871550A1 patent drawingFigure 1~2
  • EP3871550A1 patent drawingFigure 3~4B
  • EP3871550A1 patent drawingFigure 5A~5B

AI summary

The invention relates to an apparatus for attaching items, the apparatus comprising: a body; a first hook oriented on the body; a first gate, the first gate attached to the body and oriented to close the first hook; and a first sliding lock, the first sliding lock oriented on the first gate, the first sliding lock having a first position, the first position being a locked position where the sliding lock is positioned in a first notch in the body, and a second position, the second position being an unlocked position where the first sliding lock is distal from the first notch, wherein the first sliding lock is oriented to surround the gate. Further disclosed are a locking carabineer as well as a corresponding method of using a locking carabineer.