Air bag for vehicles
AssigneeToyoda Gosei Co., Ltd.
InventorsNoriyuki Horiuchi, Hiroyuki Kobayashi, Kenji Yano, Shinichi Saito, Masahiko Ozeki
Life of this patent
Estimating the term…
Abstract
An air bag for vehicles is formed by a pair of sheets of composite materials for bags sewed together with a sewing thread at their peripheral portions which are inside the bag. A sewing thread protecting layer made of a rubber compound covers the exposed portions of the thread. Each of the sheets consists of a base fabric for bags and a heat-resistant film of a chloroprene rubber compound laminated on the inside surface of the base fabric. The sewing thread protecting layer is made of a rubber compound containing a blend polymer of ethylene propylene rubber and choroprene rubber with the blending formula by weight of the former and the latter being from 30/70 to 70/30.
Claims3
An air bag for vehicles comprising:
- a pair of sheets sewed together with a sewing thread at their peripheral portions to form a bag, said sheets each comprising a base fabric for bags and a heat-resistant film of a chloroprene rubber compound laminated on one side of said base fabric, said peripheral portions and said film being inside said bag, and a sewing thread protecting layer made of a rubber compound and covering the exposed portions of the threads, wherein the rubber compound of said layer comprises a blend polymer of ethylene propylene rubber and chloroprene rubber with the blending formula by weight of the former and the latter being from 30/70 to 70/30.
An air bag for vehicles comprising:
- a pair of sheets for air bags secured together into a bag shape, one of said sheets having a hole therein for mounting an inflator thereon;
- a reinforcing composite substrate sewed with a sewing thread on the inner surface of said one sheet about the periphery of said inflator-mounting hole, said substrate comprising a reinforcing base fabric and a heat-resistant film of a chloroprene rubber compound laminated on that surface of said fabric facing the interior of the bag;
- and
- a sewing thread protecting layer made of a rubber compound covering the exposed portions of said thread inside the bag, said layer being made of a rubber compound containing a blend polymer of ethylene propylene rubber and chloroprene rubber with the blending formula by weight of the former and the latter being from 10/90 to 70/30.
An air bag for vehicles comprising:
- a pair of sheets sewed together with a sewing thread at the peripheral portions thereof to form a bag, one of said sheets having a hole therein for mounting an inflator to said bag, said sheets being made of a base fabric for bags and a heat-resistant film of a chloroprene rubber compound laminated on one side of the said base fabric, said peripheral portions and said film being inside said bag;
- a first sewing thread protecting layer made of a rubber compound covering the exposed portions of said sewing thread, said first layer consisting of a rubber compound containing a blend polymer of ethylene propylene rubber and chloroprene rubber with the blending formula by weight of the former and the latter being from 30/70 to 70/30;
- a reinforcing composite substrate sewed with a sewing thread on the inner surface of said one sheet about the periphery of said inflator-mounting hole, said substrate comprising a reinforcing base fabric and a heat-resistant film of a chloroprene rubber compound laminated on that surface of said reinforcing base fabric facing the interior of said bag;
- a second sewing thread protecting layer made of a rubber compound and covering the exposed portions of said thread sewing said substrate to said one sheet, said second layer comprising a rubber compound containing a blend polymer of ethylene propylene rubber and chloroprene rubber with blending formula by weight of the former and the latter being from 10/30 to 70/30.
Dependencies are inferred from the claim text.