AIRBAG

The airbag design with a rear panel for occupant accommodation and a wider front-back side panel structure addresses the 'bottoming' issue, ensuring effective protection by maintaining its shape and preventing contact with the steering wheel grip area during high-speed collisions.

DE102025153290A1Pending Publication Date: 2026-06-18TOYODA GOSEI CO LTD
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
TOYODA GOSEI CO LTD
Filing Date
2025-12-16
Publication Date
2026-06-18

AI Technical Summary

Technical Problem

Traditional airbags mounted on steering wheels can deform significantly during high-speed collisions, leading to a 'bottoming' effect where the occupant contacts the grip area of the steering wheel, especially when the occupant is heavy or the vehicle is traveling at high speed.

Method used

The airbag is designed with a vehicle occupant-side panel located at the rear, a steering wheel-side panel at the front, and a side panel connecting them, with the side panel's width in the front-back direction being greater than the passenger-side panel's width in the left-right direction, ensuring the airbag covers the entire grip area and reduces deformation.

Benefits of technology

This configuration minimizes the likelihood of the occupant contacting the steering wheel grip area by allowing the airbag to maintain its shape and effectively protect the occupant, even under high loads, thereby preventing impact with the steering wheel.

✦ Generated by Eureka AI based on patent content.

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Abstract

An airbag (50) that is fully inflated has a rear wall panel (51) as a vehicle occupant-side panel located on a rear side and configured to accommodate a driver (M) who is a vehicle occupant, a front wall panel (52) as a steering wheel-side panel located on the front side and stored in contact with a grip area (1) of a steering wheel (10), and a left wall panel (53) and a right wall panel (54) as side panels sewn to the rear wall panel (51) and the front wall panel (52), connecting the rear wall panel (51) and the front wall panel (52). A width (L1) of each of the left wall panel (53) and the right wall panel (54) in the front-back direction along a rotation axis (R) of the steering shaft (35) is greater than a width (L2) of the rear wall panel (51) in the left-right direction.
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Citation Information

Patent Citations

  • Air bag device

    JP2024121558A