Lightweight air bag
US6283507A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | May 5, 2000 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | May 5, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3179
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An object is to provide an air bag to protect passengers during collisions, which is lighter and can be compactly accommodated, which is sufficiently airtight, and which has durable strength in the sewn parts. The invention relates to a lightweight air bag, wherein the air bag main body is constituted of a base fabric composed of a woven fabric which has been made using a raw yarn of less than 150 denier and a cover factor of 2100 or more or a basis weight of 140 g/m.sup.2 or less, and the air bag main body is preferably constituted of a base fabric having 10 g/m.sup.2 or less of a heat resistant elastomer applied thereon, at least part of the sewn areas relating to the air bag main body, particularly where a reinforcing fabric is sewn around the inflator fitting hole, being sewn with a sewing thread having a specific yarn number count T and stitch number S (stitches/centimeter), as indicated by the following Formulas: EQU 10<T.ltoreq.60 (1A) EQU 2.ltoreq.T/S.ltoreq.8 (1B)(1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.