Passenger Airbag Folded Contact Structure for Head Coverage
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Solution Overview
Problem
Existing passenger airbags face challenges in manufacturing cost and time due to the complexity of forming a concave central portion, which can result in incomplete head coverage for passengers during collisions when the airbag and passenger do not face each other.
Innovation Solution
A passenger airbag design featuring a main panel with a contact part and side panels, where the contact part is partitioned by a folded portion that protrudes outward, and a tether or hole configuration to delay unfolding, allowing for adjustable length and symmetrical shape to ensure complete head coverage without increasing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a concave central portion is formed in the airbag to ensure complete head coverage, then head coverage reliability is improved, but manufacturing cost and manufacturing time increase
Solution Approach 1:
The airbag is divided into multiple panels (first panel, second panel, third panel, fourth panel) that are connected through folding lines. The concave central portion is formed by folding the third panel along folding lines rather than creating a complex molded shape, simplifying manufacturing while achieving the desired geometry
Solution Approach 2:
Instead of forming a concave shape through complex molding or shaping processes, the patent inverts the approach by using folding to create the concave central portion. The third panel is folded along folding lines to form the concave shape, transforming a manufacturing complexity problem into a simple folding operation
2Reliability
If the airbag is designed with a symmetric shape to cover heads from different angles, then head coverage reliability is improved, but device complexity increases
Solution Approach 1:
The patent employs asymmetric panel configurations where the first and second panels differ from the third and fourth panels. The first panel connects to the second panel through a first folding line, while the third panel connects to the fourth panel through a second folding line, creating asymmetric yet functional geometry that achieves symmetric coverage效果
Solution Approach 2:
The airbag is segmented into multiple panels with different folding configurations. The first panel includes a first folding line, the second panel includes a second folding line, the third panel includes a third folding line, and the fourth panel includes a fourth folding line. This segmentation allows complex symmetric coverage to be achieved through simple modular folding operations
Data Source
AI summary
The present disclosure relates to a passenger airbag. The passenger airbag according to an embodiment of the present disclosure includes a main panel, and side panels arranged on both sides of the main panel, wherein the main panel includes a contact part to be in contact with a head of a passenger when the passenger airbag is deployed, and a folded portion partitioning the contact part such that both sides of the contact part protrude as the contact part is deployed.