Side Airbag Unit Stud Strap Locking Mechanism
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Solution Overview
Problem
The existing side airbag systems require additional operations to secure the strap during assembly, increasing the number of processes and time, and fail to provide sufficient lateral support during side collisions, leading to potential secondary collisions between passengers.
Innovation Solution
A side airbag unit with a stud that locks the strap to the seat frame, eliminating the need for additional strap locking operations and incorporating a support member to enhance lateral support, ensuring the airbag cushion remains deployed at a predetermined length and position, preventing passengers from colliding with each other.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the strap is secured to the seat separately from the airbag module, then the airbag cushion can be restrained to deploy to a predetermined length and position, but additional assembly operations are required increasing assembly time and process complexity
Solution Approach 1:
The strap is integrated into the airbag module assembly such that one end of the strap is coupled to the airbag cushion while the other end is coupled to the stud protruding from the airbag module. This merging of the strap attachment function into the airbag module itself eliminates the need for separate strap installation operations, reducing assembly time while maintaining precise deployment positioning
2Object-affected harmful factors
If the airbag cushion is deployed in the longitudinal direction of the vehicle body, then it can protect against side collisions, but lateral force pushes the airbag cushion causing insufficient support and potential secondary collisions
Solution Approach 1:
The strap attachment to the stud creates a constraint mechanism that adds lateral dimensional control to the airbag cushion deployment. By anchoring the strap to the stud that protrudes from the airbag module and is secured to the seat frame, the system restricts lateral movement of the airbag cushion while maintaining its protective function, thereby providing sufficient lateral support force
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
Simplifies the assembly process by locking the strap during assembly and provides increased lateral support to prevent secondary collisions between passengers during side impacts or vehicle rollovers.
Implementation Method 1
After an inflator received in the airbag module generates gas as a result of an explosion
Data Source
AI summary
A side airbag unit for a vehicle, constructed to protect a side of a passenger in the event of a side collision or when the vehicle overturns, the side airbag unit may include an airbag module having a stud which is inserted into a predetermined portion of a seat frame, and an airbag cushion which remains folded in the airbag module and expands when the airbag unit is deployed, and a strap allowing the airbag cushion to be deployed to a predetermined length at a predetermined position when the airbag cushion expands, wherein a first end of the strap is coupled to a predetermined portion of the airbag cushion and a second end thereof is coupled to the stud such that the second end of the strap is being locked to the stud when the stud is assembled with the seat frame.