Airbag Mounting Plate Recess for Locking Body Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing technology for mounting an airbag device to a steering wheel has a switch wire that protrudes significantly, risking detachment during assembly operations due to potential contact with the operator's hand.
Innovation Solution
The airbag device incorporates a mounting plate with a recessed area for the locking body, ensuring it does not protrude excessively, and uses an elastically deformable metal wire locking body that generates a biasing force to secure the mounting member, with the locking body positioned on the airbag side and recessed from the inflator mounting plate, preventing accidental detachment and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the locking body protrudes from the mounting plate surface, then it can be easily engaged with the mounting member, but it risks becoming detached during assembly operations due to contact with the operator's hand
Solution Approach 1:
The locking body is nested within a recess formed in the mounting plate, allowing it to be positioned inside the recess while still engaging with the mounting member. This nesting arrangement prevents the locking body from protruding excessively and becoming detached during assembly, while maintaining its engagement function.
Solution Approach 2:
The mounting plate has a recess formed at a specific location to accommodate the locking body. This local structural modification creates a protected zone for the locking body, allowing it to engage with the mounting member while preventing excessive protrusion that would cause detachment during assembly operations.
2Reliability
If the locking body is recessed deep into the mounting plate, then it prevents detachment during assembly, but it increases the complexity of the mounting plate structure
Solution Approach 1:
The locking body is nested within a recess formed in the mounting plate, allowing it to be positioned inside the recess while still engaging with the mounting member. This nesting arrangement prevents the locking body from protruding excessively and becoming detached during assembly, while maintaining its engagement function.
Solution Approach 2:
The mounting plate has a recess formed at a specific location to accommodate the locking body. This local structural modification creates a protected zone for the locking body, allowing it to engage with the mounting member while preventing excessive protrusion that would cause detachment during assembly operations.
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 prevents the locking body from becoming detached during assembly, ensures secure mounting, and stabilizes the airbag deployment by minimizing external forces and interference, while maintaining a non-conductive and insulated state.
Implementation Method 1
the locking body includes a metal wire configured to be elastically deformed and is held on the mounting plate so as to exert a biasing force in a direction to be locked with the mounting member
Data Source
AI summary
Provided is an airbag device mounted to a steering wheel in which a mounting member is provided in a protruding manner. The airbag device includes an airbag, an inflator configured to inflate and deploy the airbag, a cover that covers the airbag, and a mounting plate. A locking body configured to be locked with the mounting member is held on the mounting plate via the holding member. The mounting plate includes a recess that is recessed from a portion for mounting the inflator. The locking body is provided in the recess of the mounting plate.