Separable Interior Lining Fastener for Curtain Airbag Deployment
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Solution Overview
Problem
The existing mounting systems for vehicle interior linings can prevent airbags from inflating fully due to stiffness or rigidity, causing the tether to get stuck or caught at corners or edges, which hinders the proper deployment of curtain airbags.
Innovation Solution
A separable mounting device with a mounting portion that separates into upper and lower casings, connected by a plug connector, allowing the vehicle interior lining to detach from the vehicle body when the airbag is activated, enabling the airbag to deploy optimally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the vehicle interior lining is fastened rigidly to the vehicle body, then the structural strength and stability are improved, but the airbag cannot deploy fully and the tether may get stuck
Solution Approach 1:
The mounting device is divided into a first portion (mounting portion) and a second portion (further portion), connected by a separable connection. This segmentation allows the mounting device to maintain structural strength during normal use while enabling reliable separation during airbag deployment, resolving the contradiction between strength and deployment reliability.
Solution Approach 2:
The mounting device acts as an intermediary element between the vehicle interior lining and the vehicle body. It provides a controlled separation mechanism that allows the lining to detach from the body during airbag deployment, preventing tether entanglement while maintaining structural integrity during normal operation.
2Strength
If the vehicle interior lining is made stiff and thick, then the protective function is improved, but the opening behavior during airbag release is hindered
Solution Approach 1:
The mounting device transitions from a static rigid connection to a dynamic separable connection during airbag deployment. The separable connection allows the mounting device to adapt its state based on operational conditions, enabling the stiff lining to open properly when needed while maintaining protective function during normal use.
3Reliability
If the mounting device is made separable, then the airbag deployment is improved, but the device complexity increases
Solution Approach 1:
The mounting device is segmented into two portions with a separable connection, which adds functional capability for reliable airbag deployment. The segmentation is designed to be simple and straightforward, with the separable connection requiring minimal additional components, thus limiting the increase in device complexity while achieving the desired reliability improvement.
Data Source
AI summary
The invention relates to a mounting device (10) for a vehicle interior lining (95) for mounting to a vehicle body (90). According to the invention, the mounting device (10) comprises a mounting slide (20) that is configured for mounting a tether (60) of an airbag (85), wherein the mounting slide (20) can be actuated by the tether (60).