Airbag Clip With Expanded Wing Surface
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Solution Overview
Problem
Current airbag clips face challenges such as deformation and irreversible damage during airbag deployment, leading to increased installation and replacement costs, as well as 'knife effect' damage to vehicle panels, which complicates maintenance and repair.
Innovation Solution
The design of airbag clips features reinforced feet and wings with an 'L'-shaped section profile and structural ribs to enhance contact surface area and structural strength, mitigating deformation and 'knife effect' damage, and includes elastic feet and flanges that converge to form an inverted 'V' shape for easier insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional clips are used to fasten curtain airbags, then the clips can be easily inserted into the panel, but the clips undergo deformation and irreversible damage during airbag deployment
Solution Approach 1:
The clip is divided into distinct functional segments: the feet (inverted V-shape) for insertion, the body for structural support, and the wings (L-shaped) for fastening. This segmentation allows each part to be optimized independently - the feet maintain elasticity for easy insertion while the body and wings gain reinforcement for deformation resistance during deployment.
Solution Approach 2:
The clip employs asymmetric geometry with the inverted V-shaped feet for insertion and L-shaped wings for fastening. This asymmetric design allows the feet to flex inward during insertion while the wings extend outward to engage the panel, optimizing both insertion ease and deployment reliability through directional structural specialization.
2Reliability
If the clips are designed to withstand deployment forces, then the reliability improves, but the installation and replacement costs increase
Solution Approach 1:
The clip is pre-designed with reinforced structural features (thickened body, integrated ribs, L-shaped wings) that are formed during manufacturing. This preliminary incorporation of strength-enhancing features eliminates the need for post-installation reinforcement or specialized installation tools, reducing installation complexity and replacement costs while ensuring deployment reliability.
Solution Approach 2:
The clip modifies key structural parameters including increased material thickness in critical areas, altered geometric proportions (L-shaped wings instead of traditional shapes), and integrated rib structures. These parameter changes enhance the clip's ability to withstand deployment forces while maintaining compatibility with standard installation procedures and tools, thereby controlling manufacturing and installation costs.
3Strength
If the clip wings are designed to fasten the panel securely, then the fastening strength improves, but the knife effect damage to the panel increases
Solution Approach 1:
The clip transitions from traditional planar wing designs to three-dimensional L-shaped wings with vertical and horizontal components. This dimensional change allows the wings to engage the panel at multiple points and orientations, distributing the fastening force across a larger area and reducing concentrated stress that causes knife effect damage, while maintaining secure attachment.
Solution Approach 2:
The L-shaped wing design inherently provides structural cushioning by distributing deployment forces through its geometry before they reach the panel. The vertical portion of the L-shape absorbs initial impact forces, while the horizontal portion maintains fastening engagement, preventing the sudden force concentration that causes panel damage during airbag deployment.
4Ease of operation
If the feet are made elastic for easy insertion, then the ease of operation improves, but the feet bend and alter the locking surface direction during deployment
Solution Approach 1:
The clip structure is segmented into the elastic feet (inverted V-shape) dedicated to insertion and the rigid body with L-shaped wings dedicated to fastening and locking. This segmentation isolates the elastic deformation to the feet portion only, while the locking surfaces on the wing portions remain structurally stable and precisely aligned during deployment, preventing alteration of locking geometry.
Solution Approach 2:
Different portions of the clip have different mechanical properties: the feet are designed with local elasticity for insertion, while the body and wings have local rigidity for maintaining precise locking surface alignment. This local differentiation of material or structural properties allows the feet to flex during insertion without compromising the dimensional stability and alignment precision of the locking surfaces 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
The improved clip design reduces the risk of deformation and damage, making installation and maintenance easier, while minimizing panel damage and extending the lifespan of airbag mechanisms, thus lowering costs and improving operational efficiency.
Implementation Method 1
several feet (4) that are more or less elastic and that tend to converge at their ends and have the general shape of an inverted 'V'
Implementation Method 2
The design of airbag clips features reinforced feet and wings with an 'L'-shaped section profile and structural ribs to enhance contact surface area and structural strength, mitigating deformation
Implementation Method 3
the ends of said wings (5) have an expanded surface that offers resistance to the traction forces that are generated by the expansion of the airbag
Data Source
AI summary
Improvements to panel fastening clips, especially to those used in curtain and/or lateral airbags, of the kinds of clips that are formed by a surface and/or several flexing arms that are designed to be located in the outer part of the panel into whose opening they are inserted, including several feet that are more or less elastic and that tend to converge at their ends in the general shape of an inverted “V” in the direction in which the clip is inserted, as well as several wings whose ends work against the lower surface of said panel and which ensure that said clip is fastened to said panel, characterized by the fact that the ends of said wings have an enlarged working surface against the lower surface of said panel.