Vehicle Seat Back Airbag Mounting With Common Trim Assembly Points
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Solution Overview
Problem
The assembly of vehicle seat backs, particularly motor vehicle seat backs, is complex and time-consuming due to the need for dedicated mounting steps of airbag devices, which complicates the integration of airbag devices into the seat structure and requires designing the seat according to the size of the airbag device.
Innovation Solution
A vehicle seat back design that incorporates a common assembly point for both the trim support and airbag support, allowing simultaneous attachment of the side bolster trim and airbag device to the seat back frame pillar using only two assembly points, simplifying the assembly process and enabling preassembly of these components before attachment to the frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated mounting steps are used for airbag devices, then the airbag device can be securely attached to the seat back frame, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The patent combines the airbag support and trim support into a single integrated support structure with common assembly points. This merging eliminates the need for separate mounting steps for airbag and trim attachments, reducing assembly complexity while maintaining secure attachment through unified structural integration.
Solution Approach 2:
The integrated support structure serves multiple functions simultaneously: it provides structural support for the trim, mounting points for the airbag device, and structural reinforcement for the seat back. This multi-functionality reduces the number of separate components needed and simplifies the overall assembly process.
2Reliability
If dedicated mounting steps are used for airbag devices, then proper integration is achieved, but the assembly time increases
Solution Approach 1:
The airbag device is pre-assembled with the integrated support structure during the trim attachment process. By preparing the mounting points and structural integration in advance as part of the trim installation, the patent eliminates subsequent dedicated mounting steps, thereby increasing assembly speed without compromising integration quality.
Solution Approach 2:
By merging the airbag mounting function with the trim support structure, the patent enables both components to be attached simultaneously in a single assembly operation. This combination eliminates sequential mounting steps and directly improves assembly productivity.
3Manufacturing precision
If the seat is designed according to the size of the airbag device, then the airbag fits properly, but the design flexibility is reduced
Solution Approach 1:
The patent segments the support structure into modular components with standardized assembly points. This segmentation allows the airbag device to be integrated without requiring the entire seat design to conform to the airbag dimensions, maintaining manufacturing precision for the airbag fit while preserving design flexibility for other seat configurations.
Solution Approach 2:
The integrated support structure is designed with universal mounting capabilities that can accommodate different airbag sizes and configurations. This universality allows the same structural framework to maintain proper airbag fit while adapting to various design requirements, thereby preserving design flexibility.
Data Source
AI summary
A vehicle seat back comprising a seat back frame with a pillar, an airbag device and a side airbag, the airbag device comprising at least one airbag and an airbag support for attaching the airbag to the seat back frame, and the side airbag comprising a side airbag trim and at least one side airbag trim support for attaching the side airbag to the seat back frame, wherein the trim support and the airbag support comprise at least one assembly point for their attachment to the pillar of the seat back frame.