Multi-layered Tab Mounting for Inflatable Curtain Airbags
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Solution Overview
Problem
Conventional inflatable curtain airbag mounting systems concentrate loading forces at attachment points, potentially leading to inadequate distribution and increased risk of failure during deployment.
Innovation Solution
The use of multi-layered tabs with axial openings and rigid inserts that distribute loading forces along the seam of attachment, allowing for more even force distribution and enhanced mounting stability through various attachment configurations and materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional single-layer tabs with concentrated attachment points are used, then the mounting structure is simple, but the loading forces are not evenly distributed and attachment failure risk increases
Solution Approach 1:
The tab is divided into multiple layers (first layer, second layer, third layer) with each layer having separate attachment points. This segmentation distributes the loading forces across multiple locations and layers, preventing concentration of stress at a single attachment point and thereby improving attachment reliability during airbag deployment.
Solution Approach 2:
The invention transitions from a conventional single-layer tab to a multi-layered tab structure, adding the dimension of layering. This dimensional change allows forces to be distributed not only across multiple attachment points but also across multiple layers, creating a three-dimensional force distribution system that enhances reliability without excessive complexity.
2Force
If multi-layered tabs with distributed attachment points are used, then loading forces are evenly distributed, but the manufacturing complexity increases
Solution Approach 1:
The tab is segmented into multiple layers with each layer containing attachment points. This segmentation achieves even force distribution across the mounting structure while using standardized layering and attachment point designs that can be manufactured using conventional processes, balancing force distribution with manufacturing feasibility.
Solution Approach 2:
Different regions of the tab structure have different properties - the multiple layers provide structural distribution while the attachment points provide connection functionality. This local differentiation optimizes force distribution in critical areas while maintaining manufacturing simplicity through standardized components and assembly processes.
Data Source
AI summary
Disclosed are embodiments of an inflatable curtain airbag having one or more multi-layered tabs to facilitate mounting of the curtain to a vehicle. In one embodiment of the invention, the tabs comprise at least two layers attached to one another along at least one side of the two layers such that an axial opening is created between the layers. A rigid insert, such as a bracket, may be inserted into the axial opening so as to facilitate mounting the tab inside a vehicle.