Airbag Mounting Device with Ring Clamping and Superimposed Plates
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Solution Overview
Problem
Existing mounting devices for folded airbags are complex to assemble and require increased space, as they involve pinching the airbag layer between plates to maintain the folded state.
Innovation Solution
A mounting device with a ring-shaped clamping portion and a fixing plate that directly superimpose contact surfaces, eliminating the need for pinching, featuring anti-twist elements and curved lands for flexibility, and a cut-out for guiding the mounting strap to pre-fix the airbag without pinching, allowing for easier assembly and reduced space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the airbag is pinched between the base plate and fixing plate to maintain folded state, then the airbag can be retained in folded condition, but the assembly becomes complicated and requires increased space
Solution Approach 1:
The invention extracts the airbag from between the pinching plates (base plate and fixing plate) and instead retains it within the ring-shaped clamping portion. The contact surfaces are positioned such that the airbag is held by the clamping action of the ring structure itself, not by pinching between plates, thereby simplifying the assembly process while maintaining reliable retention.
2Reliability
If the airbag is pinched between the base plate and fixing plate to maintain folded state, then the airbag can be retained in folded condition, but increased space is required for assembly
Solution Approach 1:
The airbag is extracted from the pinching mechanism between plates and instead is retained within the ring-shaped clamping portion. This reconfiguration reduces the space required for assembly because the ring structure provides retention without requiring the additional clearance needed for plate pinching operations.
3Ease of operation
If the folded airbag is encompassed over a portion of its length by the ring-shaped mounting device, then assembly is facilitated, but the structure becomes more complex
Solution Approach 1:
The ring-shaped clamping portion serves multiple functions: it encompasses the folded airbag over a portion of its length to facilitate assembly, provides retention through its clamping action, and integrates the contact surfaces for stable positioning. This multi-functionality achieves ease of operation without proportionally increasing structural complexity.
4Ease of operation
If contact surfaces are directly superimposed without pinching the airbag layer, then assembly is facilitated, but alternative retention mechanism is required
Solution Approach 1:
The airbag is extracted from the pinching mechanism between contact surfaces. The contact surfaces are positioned to be directly superimposed without pinching the airbag layer, and retention is achieved instead through the ring-shaped clamping portion that encompasses the folded airbag, facilitating assembly while providing alternative retention.
Data Source
AI summary
A mounting device (10) for a folded airbag, especially for a folded side airbag, is provided comprising a base plate (12), a clamping portion (14) encompassing the airbag in ring shape and a fixing plate (16) adjacent to the clamping portion (14). The fixing plate (16) and the base plate (12) exhibit a first and, resp., a second contact surface (32, 34) which are directly superimposed in the mounted condition. Furthermore an airbag module comprising a mounting device (10) is suggested.