Modular Garment Airbag with Separated Gas Generator

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Solution Overview

Problem

Existing wearable airbag systems integrated into garments suffer from structural and functional limitations, including discomfort due to fabric bunching, increased size requirements for outer garments, vulnerability to abrasion, and the need for complete replacement after activation, leading to high economic and logistical burdens for users.

Innovation Solution

A wearable garment design with structurally and functionally separated active and passive kinetic absorption elements, where the airbag system is modular and easily removable for maintenance and replacement, utilizing a gas generator and detecting means that are physically separated from the garment's support structure, allowing for independent activation and replacement of components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the airbag system is integrated into the garment with all functional components connected to a thin support layer, then the structure is compact and functional, but the entire device becomes structurally weakened after activation and must be completely replaced

Engineering Contradiction:
Improvestructural integrationVSAvoidreplacement after activation
Core Design Contradiction:
Device complexityVSEase of repair

Solution Approach 1:

The patent divides the airbag system into separate modular components: the inflatable bag is detached from the gas generator and control unit. The bag is integrated into the garment while the gas generator and control unit remain external or separately positioned. This segmentation allows the bag to be replaced independently after activation without replacing the entire system, resolving the contradiction between structural integration and ease of repair.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the airbag system is integrated in an autonomous garment to be worn beneath outer garments, then protection is provided, but the outer garments must be one or two sizes bigger to accommodate the integrated system

Engineering Contradiction:
Improveprotection capabilityVSAvoidgarment size compatibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent extracts the gas generator and control unit from the garment structure, positioning them externally or in separate compartments. This extraction reduces the volume occupied within the garment, allowing the protective system to function without requiring outer garments to be oversized, thus maintaining size compatibility while preserving protection capability.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of operation

If the airbag system is implemented externally of a motorcycle garment, then the inflatable bag is exposed to the outside environment, but the bag becomes vulnerable to perforation or destruction by rubbing

Engineering Contradiction:
Improveactivation accessibilityVSAvoidabrasion vulnerability
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent positions the inflatable bag within the garment structure (nested inside), while the gas generator and control unit remain external. This nesting arrangement protects the bag from external abrasion and environmental damage while maintaining the system's operational accessibility, resolving the contradiction between ease of operation and vulnerability to harmful factors.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 modular design ensures timely and effective airbag activation, improved anatomical adaptability, and reduced production costs, enabling users to easily replace the airbag system and maintain the garment, enhancing user convenience and economic performance.

Implementation Method 1

a gas generator for inflating the bag

Methodology Applied
Scientific EffectGas generation: Chemical Bonding

Implementation Method 2

detecting means connected to the control unit and also housed on the support textile

Methodology Applied
Scientific EffectImpact detection: Impact Force

Data Source

PatentEP3384792B2A garment wearable by a user and an autonomous airbag module integratable and replaceable in said garment
Publication Date: 2023.05.24 DAINESE SPA
  • EP3384792B2 patent drawingFigure 1
  • EP3384792B2 patent drawingFigure 2
  • EP3384792B2 patent drawingFigure 3

AI summary

A garment wearable by a user, comprising at least a passive kinetic absorption element (2), an active kinetic absorption element (4), and deploying means (5), preferably a gas generator and/or a pressurised pneumatic or hydraulic load, adapted to determine said deployment condition of the active kinetic absorption element (4). The garment comprises detecting means (6) adapted to detect at least a kinematic and/or a spatial attitude parameter of the user. In particular, in use conditions of the garment (1), at least an active kinetic absorption element (4) and the deploying means (5) are positioned in housing spaces that are structurally and physically separated relative to a housing space of the detecting means (6) internally of the garment (1), so that the at least an active kinetic absorption element (4) and the deploying means (5) are free of direct mechanical structural connections with the detecting means.