Shoe Eyelet Structure with Plastic Protective Layer

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Solution Overview

Problem

Existing flexible substrate shoes are prone to deformation, affecting their lifetime and aesthetic appeal, while current designs either compromise on comfort or manufacturing complexity.

Innovation Solution

A shoe design featuring a flexible substrate with a plastic protective layer and shoe eyelet structures made of molded plastic, allowing for adjustable tightness and improved durability, combined with a PU massaging member for enhanced comfort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a flexible substrate made of textile materials is used to ensure comfort, then wearing comfort is improved, but the material is easily deformed and the flexible substrate is loosened, which seriously affects the wearing lifetime of the shoes

Engineering Contradiction:
Improvewearing comfortVSAvoidwearing lifetime
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent combines a flexible textile substrate with a plastic protective layer to create a composite structure. The textile substrate provides flexibility and comfort, while the plastic protective layer prevents deformation and extends the shoe's lifetime, resolving the contradiction between comfort and durability.

Inventive Principle:
Principle #40Composite materials

2Ease of operation

If the flexible substrate is made of textile materials to ensure comfort, then wearing comfort is improved, but the shoes are significantly different from ordinary shoes, which is not in line with the public aesthetic

Engineering Contradiction:
Improvewearing comfortVSAvoidappearance
Core Design Contradiction:
Ease of operationVSShape

Solution Approach 1:

The plastic protective layer not only protects the flexible substrate but also provides an aesthetic appearance that aligns with ordinary shoe designs, while the underlying textile substrate maintains comfort. This composite approach resolves the contradiction between comfort and appearance.

Inventive Principle:
Principle #40Composite materials

3Adaptability or versatility

If shoe eyelet structures are added to allow shoe lace to run through for adjusting tightness, then the shoe becomes more functional and aesthetic, but the structure complexity increases

Engineering Contradiction:
Improveadjustable tightnessVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The shoe eyelet structures are integrated directly into the plastic protective layer during the molding process, combining the protective function and the eyelet function into a single component. This reduces overall structure complexity while maintaining adjustability and aesthetic appeal.

Inventive Principle:
Principle #5Merging (Combining)

4Reliability

If a plastic protective layer is formed on the outer side of the flexible substrate to prevent deformation, then the lifetime is extended, but the breathability may be reduced

Engineering Contradiction:
ImprovelifetimeVSAvoidbreathability
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The plastic protective layer is designed with a porous or mesh structure that allows air circulation and breathability while still providing protection against deformation and external elements. This resolves the contradiction between durability and breathability.

Inventive Principle:
Principle #31Porous materials

Data Source

PatentEP3491957B1Shoe with shoe eyelet structure
Publication Date: 2024.03.20 DONGGUAN JIANGHAO PLASTIC PRODS
  • EP3491957B1 patent drawingFigure 1
  • EP3491957B1 patent drawingFigure 2
  • EP3491957B1 patent drawingFigure 3

AI summary

Disclosed is a shoe with a shoe eyelet structure (400), the shoe comprising: a flexible substrate (100), a plastic protective layer (200) formed outside the flexible substrate (100), and a shoe sole (300) connected to the bottom of the flexible substrate (100). The flexible substrate (100) is a braided fabric or a textile fabric of an integral structure. Several shoe eyelet structures (400) are provided on an upper side between a shoe toe portion (110) and a shoe throat portion (120) of the flexible substrate (100). One end of the shoe eyelet structure (400) is fixedly connected to the flexible substrate (100), and the shoe eyelet structure (400) protrudes from the flexible substrate (100) and is suspended so as to be penetrated by a shoe lace (500) and adjust the degree of tightness of the flexible substrate (100). Such a shoe has relatively good coverage, is comfortable to wear, and is easy to manufacture.