Inflatable rollover cushion system
US6343811B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2000 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | May 26, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/23386
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rollover cushion and system for a motor vehicle is fabricated from a lightweight, low denier material having its inside surface coated with a gas retention material. A gas generator responsive to a sensor generates an inflation fluid that fills the sealed curtain causing the curtain to deploy over the side windows of the vehicle. In this position, the head and upper torso of an occupant are protected from striking or going through an open window during a rollover or side impact collision. Several styles of tethers are used to maintain the desired shape of the cushion. A manifold system directs the flow of the inflation fluid from the gas generator to the gas inlets in each individual cylindrical tube of the curtain. The cushion is folded either in a “Z” fold or in a tuck fold and at one end fastened to the structure of the vehicle and at the other end extending in a direction down the window. A pair of curtain tethers secured to the cushion and to the pillars maintain the cushion taut when inflated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.