Method of folding an airbag for a vehicle safety restraint
US6149568A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1999 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | May 18, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/237
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An airbag (1) for a vehicle safety restraint and particularly a method of folding an airbag comprising laying the airbag (1) generally flat, making folds in the flat airbag to form a polygon (such as a square) in plan view, folding all of the sides of the polygon upwardly and inwardly of the polygon considered in plan view so that at least one point on each side meets a point on at least one other side at a position generally above the centre of the polygon so that the corners of the polygon form upstanding ears (7), and subsequently rolling (E) the upstanding corner ears of the polygon to form the airbag into a cylindrical shape. An airbag folded in this way is very compact and will fit into a housing of smaller diameter than was hitherto possible. The invention applies particularly to a driver's side airbag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.