Side Airbag Mounting Bracket for Easier Assembly and Stable Deployment
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Solution Overview
Problem
The existing side airbag devices face challenges in easy assembly due to difficulties in fixing the inflator to the base member, and they often result in rapid and violent inflation during deployment, which can lead to unstable deployment along the vehicle's sidewall.
Innovation Solution
A side airbag device configuration with an inflator, a base member, and a mounting bracket, where the inflator is fixed to the mounting bracket and then easily attached to the base member, using a wire frame for increased rigidity and a guide plate to prevent hitching and ensure stable deployment, along with a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the inflator is directly fixed to the base member, then the assembly process becomes complex and difficult, but the structure remains simple
Solution Approach 1:
The mounting bracket is divided into two distinct portions: an inflator fixing portion and a base member fixing portion. This segmentation allows the inflator to be separately attached to the mounting bracket, which is then attached to the base member, simplifying the assembly process while maintaining structural integrity
Solution Approach 2:
The mounting bracket serves as an intermediary component between the inflator and the base member. By introducing this intermediate element, the patent enables easier assembly through modular attachment while the integrated design of the mounting bracket keeps the overall structural complexity manageable
2Speed
If the airbag deploys rapidly and violently, then the deployment speed is high, but the deployment stability deteriorates
Solution Approach 1:
The mounting bracket is positioned asymmetrically with respect to the base member, with the inflator fixing portion located closer to the interior surface than the base member fixing portion. This local positioning difference creates a pivot point that controls the airbag deployment trajectory, enabling rapid deployment while maintaining stability by preventing erratic movement
Data Source
AI summary
A side airbag device with a base member for an inflator to be easily fixed thereto, and a method for manufacturing same is provided. The side airbag device includes: an airbag; an inflator configured to supply the airbag with gas; a base member configured to accommodate the airbag and the inflator, and to be fixed to a vehicle body; an outer covering member configured to cover at least a front side of the base member to form a front-facing interior surface; and a mounting bracket. The mounting bracket includes an inflator fixing portion to which the inflator is fixed and a base member fixing portion which is located in a position different from a position of the inflator fixing portion and fixed to the base member. The base member includes, at a left or right side portion thereof, a bracket fixing portion to which the mounting bracket is fixed.