Quick Connect Indicator Tab for Leak-Safe Full Engagement

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Solution Overview

Problem

Quick connect couplings in mass production settings often fail to be fully engaged during assembly, leading to errors and potential fluid leaks due to the lack of a reliable indication method.

Innovation Solution

A quick connect connection assembly featuring an indicator tab with radially outward and inward facing surfaces and apertures, which ensures the coupling is fully engaged by allowing the indicator tab to be removably secured only when the connection is complete, utilizing elastically deformable materials and RFID tags for tracking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If quick connect couplings are used in mass production, then assembly speed is improved, but assembly errors increase due to lack of engagement indication

Engineering Contradiction:
Improveassembly speedVSAvoidassembly accuracy
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The indicator tab changes its physical state (position, visibility, or color) to provide visual feedback about connection status. When the quick connect coupling is fully engaged, the indicator tab moves to a specific position or changes appearance to clearly indicate proper connection, eliminating assembly errors while maintaining quick connect speed benefits

Inventive Principle:
Principle #32Color changes

2Ease of operation

If traditional quick connect couplings are used, then ease of operation is improved, but connection status detection becomes difficult

Engineering Contradiction:
Improvequick connection capabilityVSAvoidconnection status detection
Core Design Contradiction:
Ease of operationVSDifficulty of detecting and measuring

Solution Approach 1:

The indicator tab serves as an intermediary element that translates the internal mechanical engagement state into an externally visible signal. This mediator component allows operators to easily detect connection status without adding complexity to the quick connect operation itself

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3669110B1Quick connect with indicator tab
Publication Date: 2021.12.08 OTIKER NJ INK
  • EP3669110B1 patent drawingFigure 1
  • EP3669110B1 patent drawingFigure 2
  • EP3669110B1 patent drawingFigure 3~4

AI summary

A quick connect connection assembly, including a quick connect (60), including a first end, a second end, a first radially outward facing surface, a first radially inward facing surface (78), a second radially inward facing surface, and at least one aperture (66, 68) extending from the first radially outward facing surface to the first radially inward facing surface, and an indicator tab (40) operatively arranged to be removably secured to the quick connect, the indicator tab including at least one arm (46, 48), wherein the at least one arm is arranged to extend through the at least one aperture and radially inward from the first radially inward facing surface.