Airbag Retention Means Overlapping End Subsections
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Solution Overview
Problem
Existing airbag arrangements face issues with holding means detaching under high tensile forces during airbag deployment, leading to uncontrolled opening or improper airbag unfolding, due to inadequate fastening methods.
Innovation Solution
A holding means with a first and second end section, featuring overlapping end portions connected to plates, providing additional security through a 'U' or 'J'-shaped wrapping, and potentially embedded or integrally connected for enhanced tensile strength, along with a second holding element for controlled connection release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If holding means are simply connected to the airbag flap or carrier using conventional fastening methods (gluing, welding, screwing), then the device complexity is low and ease of manufacture is high, but the holding means become detached under high tensile forces during airbag deployment
Solution Approach 1:
The holding means is divided into multiple end portions (first end portion, second end portion, third end portion) that are distributed along its length. These segmented portions are independently connected to the airbag flap or carrier at different locations, preventing detachment of the entire holding means while maintaining structural integrity under tensile forces
Solution Approach 2:
The end portions of the holding means are inserted into recesses of the airbag flap or carrier, creating a nested configuration where the holding means is partially embedded within the structural components. This nesting provides mechanical interlocking that prevents pull-out while maintaining a relatively simple overall structure
2Reliability
If holding means are fastened with great effort to prevent detachment, then the attachment security improves, but the ease of manufacture decreases and installation becomes more difficult
Solution Approach 1:
The holding means is designed with pre-formed end portions that are configured to fit into predetermined recesses of the airbag flap or carrier. This preliminary configuration allows for simple insertion and connection without requiring complex fastening operations, while still achieving secure attachment that resists tensile forces during deployment
3Ease of operation
If holding means have excess length to accommodate thickness of carrier or airbag flap, then the airbag flap can open completely, but the holding means require greater fastening effort to prevent detachment
Solution Approach 1:
The holding means is segmented into multiple end portions distributed along its length, with each portion connected to the airbag flap or carrier at different locations. This segmentation allows the holding means to accommodate the thickness of the carrier or airbag flap while distributing the attachment points, preventing detachment even with the required excess length for complete opening
Data Source
Figure 1a~1c
Figure 2a~2b
Figure 3a
AI summary
The object of the invention is a retention means for an airbag arrangement having a first retaining element, which can be connected via a first end section to an airbag flap and via a second end section to a firing channel or via a first end section to at least one airbag flap and via a second end section to a carrier which encloses the airbag flap and has at least one section disposed between the first and the second end sections. The first end section (11) and/or the second end section (12) have at least two overlapping end subsections (111, 112), which are connected to one another and which are connected opposite to one another and spaced apart from one another to the first plate (21) and second plate (22), respectively.