Socket Connector Locking Mechanism Ergonomics

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Solution Overview

Problem

Conventional computer and telecommunications network connectors, such as RJ45 connectors, often have ergonomically poor locking systems that are difficult to manually lock and unlock, and some lack an unlocking mechanism, making maintenance challenging and prone to accidental unlocking.

Innovation Solution

A female connector socket with a sliding latch mechanism that allows for ergonomic and intuitive locking and unlocking, featuring a U-shaped lock with a wide gripping area and a hard point to prevent accidental changes in position, along with a return mechanism to maintain the locked state and a non-slip grip for secure handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a locking system is equipped in the female connector to hold the lever in the closed position, then the connector can be locked securely, but the locking operation becomes laborious and ergonomically poor due to small gripping area and poor ergonomics

Engineering Contradiction:
Improvelocking securityVSAvoidlocking ergonomics
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking mechanism is segmented into distinct functional elements: a lockable element with gripping surfaces for manual operation, a separate lock element that can be moved between locked and unlocked positions, and a sliding mechanism that connects them. This segmentation allows each element to be optimized independently - the lockable element provides ergonomic gripping while the lock element provides secure locking.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sliding mechanism acts as an intermediary between the lockable element and the lock element. When the lockable element is manipulated, the sliding mechanism translates this motion to move the lock element between locked and unlocked positions. This intermediary mechanism allows the ergonomic gripping surfaces to be separated from the actual locking action, improving both ergonomics and reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the locking system is designed to prevent accidental unlocking, then the connector remains securely locked, but the unlocking mechanism becomes complex and ergonomically poor

Engineering Contradiction:
Improveprevention of accidental unlockingVSAvoidunlocking mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The detent element provides preliminary anti-action by creating a mechanical barrier that prevents the lock element from moving to the unlocked position unless a sufficient force is applied to overcome the detent engagement. This preliminary resistance prevents accidental unlocking while maintaining a relatively simple unlocking mechanism - the user simply needs to apply enough force to the lockable element to overcome the detent and move the lock element.

Inventive Principle:
Principle #9Preliminary anti-action

3Device complexity

If no unlocking mechanism is provided in the connector, then the locking system is simple, but the connector must be destroyed if wiring modification is needed during maintenance

Engineering Contradiction:
Improvelocking system simplicityVSAvoidwiring maintenance
Core Design Contradiction:
Device complexityVSEase of repair

Solution Approach 1:

The locking system is designed to be self-servicing for maintenance operations. The lock element can be manually moved between locked and unlocked positions by applying force to the lockable element, allowing users to easily open and close the connector for wiring modifications without requiring specialized tools or complex procedures. The self-contained design with integrated gripping surfaces makes the maintenance operation straightforward.

Inventive Principle:
Principle #25Self-service

4Ease of operation

If the lever is designed to push the connection module to fully inserted position, then the connection is secure, but the lever requires a wide gripping area for ergonomic operation which increases the overall connector size

Engineering Contradiction:
Improvelever ergonomicsVSAvoidconnector size
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The connector is segmented into the lever assembly and the lockable element assembly. The lockable element with its gripping surfaces is positioned to provide ergonomic leverage for moving the lock element, while the lever itself remains focused on its function of pushing the connection module. This segmentation allows the ergonomic gripping area to be concentrated in the lockable element rather than requiring the entire connector to be larger.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3350888B1Socket connector comprising locking means
Publication Date: 2020.02.19 LEGRAND FRANCE SA
  • EP3350888B1 patent drawingFigure 1~3
  • EP3350888B1 patent drawingFigure 4~6

AI summary

The invention relates to a connector-type female plug comprising a body (1); a module (2) comprising a plurality of slots (21) each intended to receive an end of a strand of a cable (4) and arranged so as to be plugged into by a rear face of the body (1); and a lever (3) pivotably mounted on the body (1) in such a way as to be able to move between an open position and a closed position attained after lowering the lever (3) in such a way as to grasp a rear face of the module (2) and to push same into a completely plugged-in position; the female plug comprising a lock (31) that can move along a sliding mechanism between a locked position, in which the lock (31) is arranged in such a way as to hold the lever (3) in the closed position, and an unlocked position.