Driver side air bag module with extruded housing

• US 5,454,586 A
• Filed: 12/06/1993
• Issued: 10/03/1995
• Est. Priority Date: 12/06/1993
• Status: Expired due to Fees

• Current Assignee: Alliedsignal Inc.
• Original Assignee: Alliedsignal Inc.
• Inventors: Rogerson, William
• Primary Examiner(s): Tyson, Karin L.
• Assistant Examiner(s): English, Peter C.
• Application Number:
  US08/163,243
• Time in Patent Office: 666 Days
• Field of Search: 280/728 A, 280/728 B, 280/731, 280/732, 280/736, 280/737, 280/740, 280/741, 280/743 R, 280/728 R
• US Class Current: 280/728.2
• CPC Class Codes: B60R 21/2035 using modules containing inflator, bag and cover attachable to the steering wheel as a complete sub-unit steering wheel covers with tear lines B60R21/21656; assembling of modules B60R21/217
• 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 module (10) comprising: an extruded housing (12) having first and second side walls (24, 26) and ends (72, 74), and a bottom (23) linking the side walls, an integral hollow manifold (14) formed as an extending part of the first side wall (24), the manifold including a plurality of openings (18) therethrough, a first slot (32) formed as an integral part of the first side wall (24) proximate its top, a first notch (34) formed on an outside surface of the side wall (24) and a first rotatable flange (50) on the first side wall (24) movable toward the first notch (34), a first groove (52) formed between the first flange (50) and the outside surface of the first side wall, the second side wall (26) including a boss (60) at its top and a second slot(33) integrally formed therewith proximate the bottom (23), a wall portion (62) spaced from the second side wall (26) forms a second groove (66) therebetween, end plates (80a, 80b), each having an opening aligned with a hollowed portion (90) of the manifold for mating upon opposite ends of the housing, a cylindrical inflator and ring nut compressively load the end plates against the housing and an air bag (250) is located within the housing and a cover (160) protects the air bag.

Claims

1. An air bag module (10) comprising:

an extruded housing (12) having first and second side walls (24,

     26), each side wall having a top, and opposite ends (72,74), and a bottom (23) linking the side walls, an integral hollow manifold (14) formed as an extending part of the first side wall (24), the manifold including a plurality of openings (18) therethrough, a first slot (32) formed as an integral part of the first side wall (24) proximate its top, a first notch (34) formed on an outside surface of the first side wall (24) and a first rotatable flange (50) movably mounted on the first side wall (24) adjacent the first notch (34) and fixedly clamping a part of a cover (160) within the first notch (34), a first groove (52) formed between the first flange (50) and the outside surface of the first side wall, the second side wall (26) including a boss (60) at its top and a second slot(33) integrally formed therewith proximate the bottom (23), the second side wall (26) includes a second groove (66), and end plates (80a, 80b), each having an opening aligned with a hollowed portion (90) of the manifold, positioned upon the opposite ends of the housing.

2. The module as defined in claim 1 including an inflator (20) ,having a cylindrically shaped body, for providing inflation gas to inflate an air bag (250) mounted within the housing (12), the inflator (20) including at least one gas exit opening (108) thereon, the body including a first portion having exterior threads (112) thereabout, the inflator (20) including a second portion (100) having a flanged end (110), the inflator (20) extending through the openings (82a,b) in the end plates (80a,b) and through the hollow manifold (14), fastener means (120), extending through a respective opening in one of the end plates (80a, 80b), for threadably engaging the exterior threads on the inflator and upon the tightening of the fastener means on the inflator, the inflator flanged end and fastener means compressively load the end plates against the housing (12).

3. An air bag module (10) comprising:

an extruded housing ( 12 ) having first and second side walls (24,

     26), each side wall having a top, and opposite ends (72,74), and a bottom (23) linking the side walls, an integral hollow manifold (14) formed as an extending part of the first side wall (24), the manifold including a plurality of openings (18) therethrough, a first slot (32) formed as an integral part of the first side wall (24) proximate its top, a first notch (34) formed on an outside surface of the first side wall (24) and a first rotatable flange (50) on the first side wall (24) movable toward the first notch (34), a first groove (52) formed between the first flange (50) and the outside surface of the first side wall, the second side wall (26) including a boss (60) at its top and a second slot (33) integrally formed therewith proximate the bottom (23), the second side wall (26) includes a second groove (66), and end plates (80a, 80b), each having an opening aligned with a hollowed portion (90) of the manifold, positioned upon the opposite ends of the housing,

including a cover ( 160 ) having first and second sides (182a,b) extending from a top (180), an end of the first side (182a) being received within the first groove (52) and an end of the second side (182b) being received within the second groove (66).

4. The module as defined in claim 3 wherein the first side includes a boss (190) and a second notch (191) behind the boss, the boss (190) inserted within the first notch (34) and the first flange (50) inserted within the second notch (191).

5. The module as defined in claim 4 including an air bag (250) having looped ends (258) formed in side portions thereof, the air bag being stored in a folded configuration within the housing prior to inflation, a rod (270) inserted within each looped end (258) and one rod and looped end received within each of the first and the second slots (32, 33) of the housing.

6. An air bag module (10) comprising:

a folded air bag and an extruded housing having open ended first and second side walls, each side wall having respective ends and a top, the housing further including a substantially flat bottom linking the side walls and,

an integral hollow manifold, extending along the first side wall, formed in part from a lower part of the first side wall and an adjacent part of the bottom, the manifold further including an oval section, spaced from the second wall, having a top portion, extending from the lower part of the first side wall and the adjacent part of the bottom, the top portion extending along a plane positioned at an angle of about 45 degrees with the bottom, the top portion including a plurality of openings therethrough, a first slot formed as an integral part of the first side wall proximate its top, with a part of the air bag secured therein, first locking means formed on an outside surface of the first side wall for holding a first part of a cover which encloses the housing, the second side wall including second locking means for securing another part of the cover, a second slot integrally formed proximate the intersection of the bottom and the second side wall another part of the air bag secured therein,

end plates, each having an opening aligned with a hollowed portion of the manifold positioned upon the ends of the side walls, wherein part of the folded air bag extends over the openings in the manifold and another part of the folded air bag is positioned in the space between the manifold and the second side wall and covered by the cover.