Side Airbag Panel Structure With Regulating Member for Easier Manufacturing
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Solution Overview
Problem
Existing side airbag devices for vehicle side impacts have complex manufacturing processes due to the formation of sub-chambers, which complicates production and may affect the safety and efficiency of occupant protection.
Innovation Solution
The proposed side airbag device features a design with a first panel, a second panel, and a regulating member, where the first panel has a main bag and a sub inflation portion defined by specific fixing portions and the regulating member, allowing for easier manufacturing and effective occupant protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sub-chamber is formed by slackening a base cloth or sewing the base cloth to the main chamber, then the occupant protection function is improved, but the manufacturing complexity increases
Solution Approach 1:
The first panel is segmented into three functional regions: a main bag portion for primary inflation, a sub-inflation portion for secondary inflation, and a folded portion for structural support. This segmentation allows each region to be formed independently through a single sewing process between the first and second panels, eliminating the need for separate base cloth attachment operations while achieving the desired multi-chamber protection function.
2Reliability
If the first panel is divided into main bag and sub inflation portion with specific fixing portions, then the occupant protection effectiveness is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The invention merges the formation of the main bag, sub-inflation portion, and folded portion into a single integrated structure formed by one sewing operation between the first and second panels. The regulating member is positioned within the folded portion, combining multiple functional elements (chamber separation, structural support, and component mounting) into a unified design that simplifies manufacturing while maintaining protection effectiveness.
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
This design simplifies the manufacturing process while providing effective protection for occupants by ensuring the airbag can be safely and easily produced, and it effectively deploys to mitigate impact forces during a side impact.
Implementation Method 1
an inflator configured to generate gas
Implementation Method 2
a sub inflation portion defined by the first panel between the first fixing portion and the second fixing portion and the regulating member... the sub inflation portion receives the occupant
Data Source
AI summary
An airbag device includes an inflator configured to generate gas, a first panel including an edge portion, a first fixing portion, and a second fixing portion, the second fixing portion facing the first fixing portion, a regulating member provided inside the airbag. The regulating member includes a first portion fixed to the first fixing portion, and a second portion fixed to the second fixing portion. A length from the first fixing portion to the second fixing portion is longer than a length from the first portion to the second portion. The airbag includes main bag, and a sub inflation portion. In a state where the airbag is inflated and deployed, gas from the inflator is introduced into the main bag, the first panel faces an occupant, and the sub inflation portion receives the occupant.