Luggage Case Ring Gusset with Variable Flexibility for Folding

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Solution Overview

Problem

Travelers face storage challenges after long trips due to the large size of high-capacity suitcases, which are often cumbersome and difficult to store in limited spaces, leading to issues of space management and convenience.

Innovation Solution

A suitcase design featuring a ring-shaped gusset component with varying flexible deformation capabilities, allowing the suitcase to be folded compactly by bending and stacking its parts, utilizing a zipper connection system to maintain a specific distance between components for easy storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a high capacity suitcase is used to store more belongings, then the storage capacity is improved, but the suitcase size becomes too large for convenient storage after travel

Engineering Contradiction:
Improvestorage capacityVSAvoidsuitcase volume
Core Design Contradiction:
Quantity of substanceVSVolume of moving object

Solution Approach 1:

The gusset component is designed with different flexibility characteristics in different regions: the corner portions have high flexibility to allow bending and folding, while the sidewall portions maintain sufficient rigidity to support the suitcase structure during use. This dynamic flexibility-rigidity balance enables the suitcase to transition between expanded (high capacity) and collapsed (compact storage) states

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The gusset component is divided into distinct functional segments: corner portions with bending capability and sidewall portions with structural support function. This segmentation allows different parts of the same component to serve different purposes - corners enable volume reduction through folding while sidewalls maintain structural integrity during normal use

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If the gusset component has high flexibility for easy folding, then the ease of operation is improved, but the structural strength deteriorates

Engineering Contradiction:
Improvefolding easeVSAvoidstructural strength
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

Different regions of the gusset component have different mechanical properties: corner portions are designed with high flexibility for easy bending and folding operations, while sidewall portions are designed with sufficient rigidity to provide structural support. This local differentiation of material properties resolves the contradiction between ease of folding and structural strength

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 suitcase can be significantly reduced in size when folded, allowing for convenient storage and space-saving, while maintaining structural integrity and ease of use.

Implementation Method 1

the flexible deformation capability of each of the plurality of bending sections is greater than the flexible deformation capability of each of the plurality of sidewall sections, and the plurality of bending sections are bendable, allowing the plurality of sidewall sections to be folded upward or downward on the back case component

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP2959791B1Luggage case structure
Publication Date: 2020.01.22 TWINKLE LEATHERWARE CO LTD
  • EP2959791B1 patent drawingFigure 1
  • EP2959791B1 patent drawingFigure 2
  • EP2959791B1 patent drawingFigure 3

AI summary

Disclosed is a luggage case structure (10), containing a case back member (100), a case cover member (200) and a ring-shaped case side member (300). Two opposing sides of the ring-shaped case side member (300) are respectively connected to the edge of the case back member (100) and the case cover member (200). The ring-shaped case side member (300) has multiple first support parts (380) and multiple second support parts (385) connected together. The first support parts (380) are located at each end corner of the case back member (100), and the second support parts (385) are located at each side edge of the case back member (100). The ring-shaped case side member (300) contains multiple curved parts (390) respectively located between the first support parts (380) and the second support parts (385), and the elastic deformation capability of each curved part (390) is greater than that of the first support parts (380) and the second support parts (385). In addition, the curved parts (390) have flexibility, enabling the first support parts (380) and the second support parts (385) to be relatively superposed or vertical to the case back member (100), thereby making the luggage case (10) convenient for collapsing.