Case of air bag system

• US 6,481,742 B2
• Filed: 12/06/2000
• Issued: 11/19/2002
• Est. Priority Date: 12/06/1999
• Status: Expired due to Fees

• Current Assignee: Toyoda Gosei Company Limited (Toyota Motor Corporation)
• Original Assignee: Toyoda Gosei Company Limited (Toyota Motor Corporation)
• Inventors: Ichimaru, Kazumi, Usami, Hironori, Ichino, Rie
• Primary Examiner(s): Dickson, Paul N.
• Assistant Examiner(s): Ilan, Ruth
• Application Number:
  US09/729,956
• Publication Number:
  US 20010002749A1
• Time in Patent Office: 713 Days
• Field of Search: 280/728.2, 280/732, 280/741, 280/736
• US Class Current: 280/728.2
• CPC Class Codes: B60R 21/205 in dashboards
• CPC Class Codes: B60R 21/2171 specially adapted for elongated cylindrical or bottle-like inflators with a symmetry axis perpendicular to the main direction of bag deployment, e.g. extruded reaction canisters B60R21/2176 takes precedence

Abstract

An air bag system has an air bag, an inflator for inflating the air bag, the inflator having a first end and a second end with a flange portion, a casing for receiving the air bag and the inflator, the casing including an air bag receiving casing and an inflator receiving casing, and a cover portion for covering an opening portion of the casing. A pair of fitting holes are formed in two wall surfaces of the inflator receiving casing opposite to each other and the fitting holes are substantially equal in diameter to each other so that the inflator can be fitted into the fitting holes. The first end of the inflator is engaged with a first fitting hole through a spacer while the second end of the inflator is connected to a second fitting hole through the flange portion, and a position regulating member is provided in one of the casing and the spacer for preventing the inflator from shifting in position.

Claims

1. An air bag system, comprising:

an air bag;

an inflator for generating gas for inflating said air bag, said inflator having a first end and a second end with a flange portion;

a casing for receiving said air bag and said inflator, said casing comprising an air bag receiving casing and an inflator receiving casing each being made of synthetic resin; and

a cover portion for covering an opening portion of said casing,

wherein first and second fitting holes are formed in two wall surfaces of said inflator receiving casing opposite to each other and said first and second fitting holes are substantially equal in diameter to each other and said inflator can be fitted into said fitting holes,

wherein the first end of said inflator is engaged with the first fitting hole through a spacer and the second end of said inflator is connected to the second fitting hole through said flange portion, and

a position regulating member is provided on one of said casing and said spacer for preventing said spacer from shifting in position, wherein said position regulating member includes a position regulating rib formed on an outer circumferential edge of said spacer bent to cover an outer circumferential surface of said inflator receiving casing.

2. An air bag system, comprising:

an air bag;

an inflator for generating gas for inflating said air bag, said inflator having a first end and a second end with a flange portion;

a casing for receiving said air bag and said inflator, said casing comprising an air bag receiving casing and an inflator receiving casing each being made of synthetic resin; and

a cover portion for covering an opening portion of said casing,

wherein first and second fitting holes are formed in two wall surfaces of said inflator receiving casing opposite to each other and said first and second fitting holes are substantially equal in diameter to each other and said inflator can be fitted into said fitting holes,

wherein the first end of said inflator is engaged with the first fitting hole through a spacer and the second end of said inflator is connected to the second fitting hole through said flange portion, and

a position regulating member is provided on one of said casing and said spacer for preventing said spacer from shifting in position,

wherein said position regulating member includes a position regulating rib integrally formed with an inner surface of a boundary portion of the casing between said air bag receiving casing and said inflator receiving casing projecting from an inner surface of the boundary portion and imposing a positional regulation on an outer circumferential surface of said inflator, wherein said position regulating rib is integrally formed with an attachment shelf plate that connects said air bag with an inner circumferential edge of a bottom portion of said air bag receiving casing.