Steam Iron Quick Connector With Automatic Locking Assembly

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Solution Overview

Problem

The existing methods for connecting a steam pipe to a solenoid valve in steam-generating appliances require significant effort and time, often leading to musculoskeletal disorders due to limited accessibility during assembly, and existing quick connectors are either bulky or unsuitable for this specific application.

Innovation Solution

A quick connector with a body and head that automatically locks, featuring an elastic clip with transverse branches that engage in a groove, reducing assembly time and effort, and providing secure and audible/visual confirmation of locking, while allowing easy disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If force-fitting the steam pipe onto the connection tube and using pliers to place a clamp, then the connection is secure, but the assembly operation requires a great deal of time and effort

Engineering Contradiction:
Improveconnection securityVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The connector is divided into two separate parts: a body that is integral with the steam pipe and a head that is carried by the solenoid valve. This segmentation allows each part to be independently manufactured and assembled, enabling quick connection without complex tools or procedures.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The elastic clip automatically engages with the groove on the head when the head is inserted into the body, creating self-locking functionality. This eliminates the need for manual clamping or additional securing operations, allowing the connection to secure itself automatically.

Inventive Principle:
Principle #25Self-service

2Reliability

If force-fitting the steam pipe onto the connection tube and using pliers to place a clamp, then the connection is secure, but the operation generates musculoskeletal disorders due to limited accessibility

Engineering Contradiction:
Improveconnection securityVSAvoidoperator safety
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

By separating the connector into body and head components, the design eliminates the need for difficult force-fitting operations and manual clamping with pliers, reducing physical strain and accessibility requirements during assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The automatic locking mechanism through elastic clip engagement eliminates the need for manual clamping operations, reducing physical effort and eliminating the risk of musculoskeletal disorders associated with using pliers in confined spaces.

Inventive Principle:
Principle #25Self-service

3Extent of automation

If using a quick connector with elastic clip and groove engagement, then assembly is simplified and automated, but the connector must be compact and suitable for steam applications

Engineering Contradiction:
Improveautomatic lockingVSAvoidconnector design
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The connector is segmented into body and head parts, each with simple geometries that are easy to manufacture. The body contains a cavity and channel, while the head has a groove, creating a straightforward automatic locking mechanism through elastic clip engagement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The elastic clip is designed with specific local properties (elasticity) to provide automatic locking functionality. The groove on the head and cavity in the body are strategically positioned to enable simple yet effective engagement, maintaining compactness while achieving automation.

Inventive Principle:
Principle #3Local quality

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 solution simplifies and speeds up the assembly process, reduces the risk of musculoskeletal trauma, ensures secure locking, and allows for reliable and efficient connection of the steam conduit to the solenoid valve, enhancing production rates and operator safety.

Implementation Method 1

the automatic locking means comprise an elastic clip carried by the body of the connector, the elastic clip comprising two transverse locking branches which engage elastically in a groove provided on the head of the connector

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2775029B1Ironing appliance including a steam-generating base connected by a cord to an iron
Publication Date: 2018.03.21 SEB SA
  • EP2775029B1 patent drawingFigure 1~2
  • EP2775029B1 patent drawingFigure 3~5
  • EP2775029B1 patent drawingFigure 6A~8

AI summary

The apparatus has a steam generating base connected to a steam iron by a cord. The cord comprises a steam conduit (20) for transporting steam. The conduit is connected to the base by a quick connector. The quick connector comprises a head (6) axially retained in a cavity of a body (5), and an automatic locking unit for locking the head at a locking position in which the head is sealingly connected to the body. The head is carried by a solenoid valve (4) that is fixed to a vessel for generation of steam under pressure. The locking unit comprises an elastic fastener (7) carried by the body.