Air bag system for vehicle
US8342570B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 2011 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Apr 21, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/239
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An air bag system for a vehicle includes an air bag body formed by stitching base fabric material, an inflator that charges the air bag body with gas, and a vent hole that is a through hole provided in the air bag body so as to communicate the inside with the outside of the air bag body. The vent hole of the air bag body is formed to be slit-like and longer in a longitudinal direction thereof. The air bag body includes two base fabric pieces having overlapping side ends that are joined together, a tensile-force applying mechanism that applies tensile-force in the longitudinal direction of the vent hole, including a pair of V-shaped stitched lines bent in a sharply angled V-shape and formed on the side ends of the two base fabric pieces with a predetermined distance therebetween that defines the slit-like vent hole, and portions of the side ends aligned with vent hole along the gas discharge direction form a flow-passage restriction membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.