Inflatable bags for airbag passive restraint systems for driver and method for production thereof
US5358273A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1993 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Feb 16, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/23382
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An inflatable bag for airbag passive restraints for driver which comprises upper and lower circular base cloths of the same size seamed together at their outer peripheries and lateral regulating means for regulating inflation of the bag in lateral and upward directions and causing downward inflation, which means extends to link between an inner periphery of the lower base cloth and the outer peripheries in a shorter length than the radial distance therebetween, thus forming a sag portion on the lower cloth. When the bag is deployed, the lateral regulating means enables the sag portion to bulge sideways out of a steering wheel to protect a driver. The bag may further include upward restricting means for upward inflation. The lateral and the upward regulating means may be located in a whole circumferential area or within a range of 1/2 to 1/4 the circumference of both cloths. A method of producing the bag having lateral or both regulating means is characterized by using a third cloth of the same size having strap-like portion or portions defined by communicating hole or holes. After superposing and sewing of the lower, upper and third cloths, the strap-like portions are each raised a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.