Steam Iron Removable Cap with Base Locking for Secure Storage

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Solution Overview

Problem

Existing steam irons with removable caps for delicate textiles cannot be securely immobilized on storage bases due to the cap's thickness, leading to complications in storage and increased risk of loss or damage.

Innovation Solution

A steam iron with a portable base featuring a blocking element and a removable cap that fits over the ironing surface, allowing for secure immobilization regardless of the cap's presence, with openings for the base pads to ensure correct positioning and prevent steam leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a removable cap is added to the ironing surface to protect delicate textiles, then the iron can be used on delicate fabrics without shine, but the added thickness prevents the iron from being securely locked to the base

Engineering Contradiction:
Improveability to iron delicate textilesVSAvoidsecure locking to base
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The removable cap is designed to nest within the iron's soleplate structure, with engagement features that allow it to be securely attached during ironing yet easily removed for storage. The cap fits into a recessed area of the soleplate, creating a nested configuration that minimizes external dimensions while maintaining protective functionality.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The ironing surface protection system is segmented into a removable cap component that can be separated from the main iron body. This segmentation allows the cap to be removed before storage, enabling the iron to be securely locked to the base while still providing protection during use through the removable component.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the removable cap is removed before storage to enable secure locking, then the iron can be immobilized on the base, but the cap must be stored separately increasing risk of loss and damage

Engineering Contradiction:
Improveimmobilization on baseVSAvoidstorage convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The removable cap and iron body are designed as integrated components that can be easily recombined during storage. The cap includes engagement features that align with corresponding features on the iron's soleplate, allowing them to be quickly reassembled into a unified protective assembly for storage, eliminating the need for separate storage of the cap.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The iron is designed with pre-positioned engagement features and alignment guides that facilitate the preliminary action of reattaching the cap before storage. This preliminary reattachment ensures the cap is secured to the iron body in advance of placement in the storage compartment, preventing loss or damage.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If the cap thickness raises the ironing surface position, then the cap provides adequate coverage, but the iron cannot be properly positioned on the storage base pads

Engineering Contradiction:
Improvecap coverageVSAvoidpositioning accuracy on base
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The iron's soleplate structure incorporates localized recesses and contours that accommodate the cap's thickness in specific areas. These local structural modifications allow the cap to provide adequate coverage while maintaining the overall positioning geometry required for accurate alignment with the storage base pads.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The design compensates for the cap's thickness by introducing dimensional variations in the soleplate structure, such as stepped surfaces or angled transition zones. These dimensional changes allow the cap to extend outward for coverage while the underlying structure maintains the correct vertical positioning relative to the storage base pads.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3404138B1Household electrical appliance including an iron and a portable base
Publication Date: 2019.12.04 SEB SA
  • EP3404138B1 patent drawingFigure 1~2
  • EP3404138B1 patent drawingFigure 3
  • EP3404138B1 patent drawingFigure 4~6

AI summary

Household appliance comprising a steam iron (1) comprising a soleplate (10) having an ironing surface (10A) provided with steam outlet holes (11) and a portable base (2) comprising a location (21) for resting the iron (1) during inactive ironing phases, said location (21) comprising at least one projecting pad (25) on which the iron comes to rest when it is placed on said location in a position of storage, the base (2) comprising at least one blocking element (5) movable between an unlocked position in which the iron can be extracted from the base (2) and an immobilized position, in which the iron is immobilized in the storage position by the blocking element (5), characterized in that the appliance comprises a removable cap (6) which can be placed on the ironing surface (10A) and in that the said cap (6 ) has an opening (69) in which is e ngager the shoe (25) when the iron (1) is placed in the storage position.