Suitcase with Internal Protective Sheet for Weather Shielding

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Solution Overview

Problem

Suitcases and bags are vulnerable to weather conditions and surface damage during transportation, particularly in collective transport services like airplanes, trains, and buses.

Innovation Solution

A suitcase with a receptacle containing an extractable, impermeable protective sheet that can be applied to form a covering for the casing, made of two half-parts connected by a zip, housed within the suitcase's dimensions and accessible via a zip opening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the suitcase is equipped with a protective sheet stored inside the casing, then the protection against weather and surface damage is improved, but the device complexity increases due to the additional receptacle and extraction mechanism

Engineering Contradiction:
Improveprotection against weather and surface damageVSAvoidreceptacle and extraction mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The protective sheet is nested within the casing in a receptacle formed by the space between the internal surface of the half-shell and a flexible internal coating. This nesting approach allows the protective sheet to be stored compactly within the existing suitcase structure without requiring external attachments or complex separate storage systems.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The protective sheet is designed to be easily extractable and applicable by the user themselves. The sheet can be removed from the receptacle and applied to the external surface of the casing without requiring specialized tools or assistance, enabling the user to protect the suitcase independently before transportation.

Inventive Principle:
Principle #25Self-service

2Reliability

If the protective sheet is made of impermeable material to protect against weather, then the weather resistance is improved, but the sheet thickness increases reducing its flexibility for application

Engineering Contradiction:
Improveweather resistanceVSAvoidflexibility for application
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The protective sheet is made from a flexible, impermeable material that forms a thin film capable of conforming to the external surface of the suitcase casing. This thin film structure provides weather protection while maintaining the flexibility needed for easy application and adherence to the casing contours.

Inventive Principle:
Principle #30Flexible shells and thin films

3Volume of moving object

If the receptacle is set inside the casing within overall dimensions, then the compactness is improved, but the accessibility of the protective sheet for application becomes more difficult

Engineering Contradiction:
Improvecompactness within suitcase dimensionsVSAvoidaccessibility of protective sheet
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The protective sheet is pre-positioned within the receptacle in a folded or rolled state before use. This preliminary placement allows the sheet to be readily accessible when needed - the user can extract it from the pre-prepared receptacle and apply it to the casing without requiring complex retrieval mechanisms or external storage.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2879544B1Suitcase or travelling bag
Publication Date: 2017.05.10 BASICNET
  • EP2879544B1 patent drawingFigure 1~3
  • EP2879544B1 patent drawingFigure 4~5
  • EP2879544B1 patent drawingFigure 6~7

AI summary

A suitcase or travelling bag comprising a casing (1) that can be opened and closed, which has a receptacle (9), which is accessible from outside and housed within which is an extractable protective sheet (8a, 8b) designed to form a protective covering (8) of the casing ( 1 ).