Airbag module electric component attachment using studs

• US 5,593,177 A
• Filed: 01/17/1995
• Issued: 01/14/1997
• Est. Priority Date: 01/17/1995
• Status: Expired due to Fees

• Current Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Original Assignee: Morton International Incorporated (Autoliv Incorporated)
• Inventors: Ricks, Merle
• Primary Examiner(s): Dickson, Paul N.
• Application Number:
  US08/373,673
• Time in Patent Office: 728 Days
• Field of Search: 280/731, 280/735, 280/728.2, 200/61.54
• US Class Current: 280/731
• CPC Class Codes: B60Q 5/003 mounted on the steering wheel
• 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

Abstract

An airbag module electric component attachment includes protruding studs existing on the airbag module and typically fastening the inflator, housing, cushion and cushion retainer together, and stud reception openings provided in the electric component in which the studs are secured when the electric component is pressed thereon.

Claims

1. In a driver'"'"'s side vehicle occupant restraint module of the type including an inflator, a housing, and a folded cushion that are fastened together by spaced studs, said module having a back side from which said spaced studs protrude,

the improvement comprising an electric component having a first end and a second end, said electric component having at least one of said first and second ends mounted on one of said studs, said electrical component having mounted thereon a first female electrical connector to which a plug-in electrical connector may be attached,

wherein said electric component is elongated and includes stud reception openings adjacent the extremities thereof,

wherein said electric component is assembled to said module by positioning said reception openings adjacent said spaced studs and pushing said electric component onto said spaced studs, said spaced studs engaging through said reception openings with the size of said reception openings being such that an interference fit is established that securely attaches said electric component to said module,

wherein, at the back side of said module, said inflator is generally circular,

wherein said spaced studs are uniformly positioned with respect to the circularity of said inflator, and

wherein said electric component is curved with a curvature the rate of change of which is less than that of said inflator whereby said electric component partially encircles said inflator in a generally coaxial relationship for a substantial angle.

2. The improvement of claim 1

wherein said electric component partially encircles said inflator for an angle of about 90°

.

3. In a driver'"'"'s side vehicle occupant restraint module of the type including an inflator, a housing, and a folded cushion that are fastened together by spaced studs, said module having a back side from which said spaced studs protrude,

the improvement comprising an electric component having a first end and a second end, said electric component having at least one of said first and second ends mounted on one of said studs, said electrical component having mounted thereon a first female electrical connector to which a plug-in electrical conector may be attached,

wherein said electric component is mounted on said first end and on said second end on a respectively associated one of said spaced studs,

wherein said first electrical connector is mounted adjacent said first end of said electric component, and

further including a second female electrical connector mounted adjacent said second end of said electric component.

4. In a driver'"'"'s side vehicle occupant restraint module of the type including an inflator, a housing, and a folded cushion that are fastened together by spaced studs, said module having a back side from which said spaced studs protrude,

the improvement comprising an electric component having a first end and a second end, said electric component having at least one of said first and second ends mounted on one of said studs, said electrical component having mounted thereon a first female electrical connector to which a plug-in electrical connector may be attached,

wherein said electric component is elongated and includes stud reception openings adjacent the extremities thereof,

wherein said electric component is assembled to said module by positioning said reception openings adjacent said spaced studs and pushing said electric component onto said spaced studs, said spaced studs engaging through said reception openings with the size of said reception openings being such that an interference fit is established that securely attaches said electric component to said module,

wherein said vehicle occupant restraint module includes a metal housing,

wherein said electrical component includes a support body comprising an electrically non-conductive circuit board,

wherein at least one of said studs is electrically conductive, and

further including an electrically conductive path on said electrically non-conductive circuit board between said electrical component and said electrically conductive stud,

whereby mounting of said electrical component on said studs effects a connection of said electrical component to said airbag module metal housing.

5. The improvement of claim 4 wherein said spaced studs are electrically conductive, and

wherein an electrically conductive wire conductor or path is included between said electrical component and both of said studs.

6. The improvement of claim 4 wherein said electrically conductive path is formed on a side of said support body circuit board that is adjacent said electrical component.

7. The improvement of claim 4 wherein said electrically conductive path encircles at least the reception opening of said circuit board that is associated with said electrically conductive stud and also the inner wall surface of the said associated reception opening.

8. In a driver'"'"'s side vehicle occupant restraint module of the type including an inflator, a housing, and a folded cushion that are fastened together by spaced studs, said module having a back side from which said spaced studs protrude,

the improvement comprising an electric component having a first end and a second end said electric component having at least one of said first and second ends mounted on one of said studs, said electrical component having mounted thereon a first female electrical connector to which a plug-in electrical connector may be attached,

wherein said electric component is elongated and includes stud reception openings adjacent the extremities thereof,

wherein said electric component is assembled to said module by positioning said reception openings adjacent said spaced studs and pushing said electric component onto said spaced studs, said spaced studs engaging through said reception openings with the size of said reception openings being such that an interference fit is established that securely attaches said electric component to said module,

wherein, at the back side of said module, said inflator is generally circular,

wherein said spaced studs are uniformly positioned with respect to the circularity of said inflator, and

wherein said electric component is curved with a curvature the rate of change of which is less than that of said inflator whereby said electric component partially encircles said inflator in a generally coaxial relationship for a substantial angle,

wherein said electric component partially encircles said inflator for an angle of about 90°

,

wherein said electric component is mounted on said first end and on said second end on a respectively associated one of said spaced studs,

wherein said first electrical connector is mounted adjacent said first end of said electric component, and

further including a second female electrical connector mounted adjacent said second end of said electric component to which another plug-in electrical connector may be attached.