Airbag Chute Screen Reinforcement via Insert Molding
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Solution Overview
Problem
Conventional passenger airbag chutes face challenges in reliably deploying the door plate due to excessive deformation or damage from deployment pressure, affecting the stability and reliability of airbag deployment.
Innovation Solution
The passenger airbag chute incorporates a screen made of fabric material, integrated with the chute frame, door plate, and hinge through insert injection molding, providing exposed coupling parts for enhanced rigidity and visibility, which supports the door plate's rotation and prevents excessive deformation or breakage during airbag deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the door plate or hinge part is made thinner to reduce weight, then ease of manufacture is improved, but reliability deteriorates due to excessive deformation or damage from deployment pressure
Solution Approach 1:
The patent applies composite materials by integrating the screen (fabric material) with the chute frame, door plate, and hinge through insert injection molding. This creates a composite structure where the fabric screen reinforces the plastic components, providing enhanced strength and deformation resistance while maintaining the thin-profile design for ease of manufacture.
2Reliability
If the door plate is made more rigid to resist deformation, then reliability is improved, but device complexity increases due to additional coupling parts and integration requirements
Solution Approach 1:
The patent merges multiple components into an integrated structure by coupling the screen with the chute frame, door plate, and hinge through insert injection molding. This combining approach creates a unified assembly where the screen acts as a reinforcing element across all components, improving rigidity while avoiding the need for separate coupling mechanisms that would increase complexity.
3Ease of operation
If the hinge is made more flexible to allow door plate rotation, then ease of operation is improved, but strength deteriorates due to potential breakage from deployment pressure
Solution Approach 1:
The patent applies composite materials to the hinge by integrating the fabric screen with the hinge through insert injection molding. This composite construction provides the hinge with enhanced strength and deformation resistance from the fabric reinforcement, while the hinge maintains its flexible geometry and articulation design to allow door plate rotation during deployment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration ensures stable and reliable airbag deployment by maintaining coupling force and rigidity, preventing hinge and door plate deformation, and enhancing manufacturing reliability through visible inspection of coupling positions.
Implementation Method 1
The screen may be joined integrally with the chute frame, the door plate, and the hinge by insert injection molding.
Data Source
AI summary
Disclosed herein is a passenger airbag chute that includes a chute frame, a door plate disposed in an opening of the chute frame, a hinge allowing the door plate to be rotatably connected to the chute frame, and a screen including a frame coupling part coupled to the chute frame, a door coupling part coupled to the door plate, and a hinge coupling part formed between the frame coupling part and the door coupling part and coupled to the hinge.