Quick Release Connector Lock Pin Stabilizing Recess Design
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Solution Overview
Problem
Existing quick release connectors for securing webbing are prone to jamming due to over-insertion of the lock pin and tilting during load application, making it difficult to release the connector, especially in applications like securing backpack straps where rapid release is necessary.
Innovation Solution
A connector design featuring a female part with an annular stabilizing recess and a lock pin with an annular step that limits insertion depth and a resilient attachment, along with a bar attachment section offset at a reduced angle to minimize torque, preventing jamming and facilitating easy insertion and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lock pin is made long enough to securely engage the male part, then the connector becomes more reliable, but the lock pin can be over-inserted causing the connector to become jammed
Solution Approach 1:
The stabilizing recess is pre-formed in the female part at a specific depth, establishing a predetermined insertion limit for the lock pin before assembly occurs. This preliminary structural feature prevents over-insertion from the outset, allowing the lock pin to be long enough for secure engagement without risking jamming.
2Ease of operation
If the lock pin has a shape that allows easy insertion, then the ease of operation is improved, but the lock pin tilts during load application causing it to become jammed
Solution Approach 1:
The stabilizing recess acts as an intermediary structural feature between the lock pin and the female part. It provides lateral support and guidance to the lock pin during insertion and under load, preventing tilting while maintaining ease of insertion. The recess geometry mediates the interaction between these two components.
3Ease of operation
If the lock pin is allowed to move freely in the opening, then the ease of operation is improved, but over-insertion causes the connector to become jammed
Solution Approach 1:
The stabilizing recess provides localized structural support at a specific location (the opening in the female part) without restricting the overall freedom of movement of the lock pin during normal operation. The local quality of the recess geometry prevents over-insertion while maintaining ease of operation in other aspects.
Data Source
AI summary
A connector is described having a female part defining a recess, a male part including a section receivable within the recess of the female part, and a lock pin insertable into an opening provided in the female part. The lock pin is engageable with the section of the male part when the male part is located within the recess to retain the male part within the recess. The female part is provided, around a periphery of the opening, with a stabilizing recess. The lock pin includes a feature receivable within the stabilizing recess, engageable with a base of the stabilizing recess to limit the distance by which the lock pin can be inserted into the opening.