Foam Ventilation Element for Lightweight Shock-Absorbing Apparel

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Solution Overview

Problem

Existing ventilation elements for apparel and sports accessories are heavy due to rigid frames, complex to assemble, and do not adapt well to different body shapes or postures, and fail to absorb shocks effectively.

Innovation Solution

A ventilation element comprising a first and second surface spaced apart by a foam, allowing air circulation, with channels and bridges that dynamically adjust to body movements, providing cushioning and ventilation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a rigid frame arrangement is used to create a gap for air circulation, then ventilation is improved, but weight increases and the structure becomes complex

Engineering Contradiction:
ImproveventilationVSAvoidweight
Core Design Contradiction:
Stability of the object's compositionVSWeight of moving object

Solution Approach 1:

The patent removes the rigid frame structure entirely and replaces it with a flexible foam material that inherently maintains the air gap through its elastic properties. This extraction of the frame eliminates the weight and complexity associated with rigid structural elements while preserving the ventilation function.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention changes the material parameter from rigid (frame) to flexible (foam), allowing the structure to adapt its shape while maintaining the air circulation gap. The foam's elasticity provides the necessary structural support without the weight and complexity of a rigid frame.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If a rigid frame is used to maintain air gap, then ventilation is achieved, but adaptability to different body shapes and postures is reduced

Engineering Contradiction:
ImproveventilationVSAvoidadaptability to body shapes
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent employs a dynamic, flexible foam structure that can adapt its shape in real-time to accommodate different body contours and postures. Unlike a static rigid frame, the foam continuously adjusts its configuration while maintaining the air gap, providing both ventilation and adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention uses a flexible foam material that acts as a compliant structure, allowing it to conform to various body shapes and movements. This flexible approach replaces the rigid frame while maintaining the essential air circulation function.

Inventive Principle:
Principle #30Flexible shells and thin films

3Strength

If a rigid frame structure is used, then structural stability is provided, but shock absorption capability is reduced

Engineering Contradiction:
Improvestructural stabilityVSAvoidshock absorption
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent incorporates a foam material that inherently provides cushioning and shock absorption capabilities before impacts occur. The foam's cellular structure is designed to compress and dissipate energy, providing protective functionality while maintaining structural integrity.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The invention uses foam material that combines the structural support function previously provided by rigid frames with the shock absorption properties of flexible cellular materials. This composite approach integrates multiple functions into a single material system.

Inventive Principle:
Principle #40Composite materials

4Stability of the object's composition

If multiple components (frame, net part) are used for ventilation, then ventilation function is achieved, but manufacturing complexity and assembly difficulty increase

Engineering Contradiction:
ImproveventilationVSAvoidmanufacturing simplicity
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent merges the functions of the frame and net part into a single integrated foam structure. The foam material simultaneously provides the structural support, air gap maintenance, and flexible surface that were previously distributed across multiple components, simplifying both manufacturing and assembly.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The foam material serves multiple functions simultaneously: it maintains the air gap for ventilation, provides structural support, offers shock absorption, and adapts to body shapes. This multi-functionality eliminates the need for separate specialized components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 ventilation element is lightweight, adaptable, and absorbs shocks while maintaining effective ventilation and stability, suitable for various body shapes and postures.

Implementation Method 1

a first surface (11), comprising a foam; a second surface (12)... providing cushioning and ventilation

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the first surface (11) and the second surface (12) are spaced apart, creating a void, so that air may circulate between the first surface and the second surface

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentEP3549466B1Ventilation element
Publication Date: 2026.01.21 ADIDAS AG
  • EP3549466B1 patent drawingFigure 1A~1B
  • EP3549466B1 patent drawingFigure 1C~1D
  • EP3549466B1 patent drawingFigure 2

AI summary

The present invention concerns a ventilation element (10) for an article of apparel, footwear, or a sports accessory (25), comprising: a first surface (11), comprising a foam; a second surface (12); wherein the first surface (11) and the second surface (12) are spaced apart, creating a void, so that air may circulate between the first surface (11) and the second surface (12).