Occupant restraint system

• US 20040201207A1
• Filed: 03/16/2004
• Published: 10/14/2004
• Est. Priority Date: 04/14/2003
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Kawajiri, Naoki, Ochiai, Fumiharu, Fukuda, Takeru
• Granted Patent: US 7,159,896 B2
• Time in Patent Office: Days
• US Class Current: 280/730.2
• CPC Class Codes: B60R 21/201 Packaging straps or envelopes for inflatable members
• CPC Class Codes: B60R 21/213 in vehicle roof frames or pillars
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge
• CPC Class Codes: B60R 21/237 characterised by the way they are folded

Abstract

A belt-like protruding portion 34d extending longitudinally is provided on an air bag cover 34 which covers a folded air bag 21. In the event that the air bag 21 is twisted when the air bag 21 is mounted on a vehicle body, a longitudinal dimension of the air bag 21 is contracted largely, whereby an interval between adjacent mounting portions 21a is decreased, thereby the fixing of the air bag 21 being disabled. As a result, the fixing of the air bag 21 in the twisted state is prevented assuredly, and the smooth deployment of the air bag 21 is enabled. A rod-like twist preventing member may be fixed longitudinally along the folded air bag 21 instead of the belt-like protruding portion 34d.

Claims

1. An occupant restraint system comprising:

a folded air bag,

an inflator for generating gas at the time of a collision of a vehicle, and

mounting portions provided longitudinally at a plurality of locations of the folded air bag being fixed along a side portion of a roof,

the air bag being inflated to be deployed in a curtain-like fashion along an inner side of a passenger compartment by gas generated from the inflator, wherein

the fixing of the folded air bag in a twisted state is prevented by providing a belt-like protruding portion which extends longitudinally along the air bag on an external portion of the air bag.

3. The occupant restraint system as set forth in claim 1, wherein

the width of the belt-like protruding portion is equal to or greater than 10 mm.

2. An occupant restraint system comprising:

a folded air bag fixed along a side portion of a roof,

an inflator for generating gas at the time of a collision of a vehicle,

the air bag being inflated to be deployed in a curtain-like fashion along an inner side of a passenger compartment by gas generated from the inflator, and

a rod-like twist preventing member fixed longitudinally along the folded air bag so that the twisting of the air bag is prevented by the twist preventing member.

4. The occupant restraint system as set forth in claim 2, wherein

the cross-sectional shape of the twist preventing member has downwardly bent flanges provided along side edges thereof.

5. The occupant restraint system as set forth in claim 2, wherein

the cross-sectional shape of the twist preventing member is an L-shaped cross section.

6. The occupant restraint system as set forth in claim 2, wherein

the cross-sectional shape of the twist preventing member is a C-shaped cross section.