Mounting for inflatable safety bag

• US 4,793,631 A
• Filed: 11/12/1986
• Issued: 12/27/1988
• Est. Priority Date: 11/12/1986
• Status: Expired due to Term

• Current Assignee: Juichiro Takada
• Original Assignee: Juichiro Takada
• Inventors: Takada, Juichiro
• Primary Examiner(s): Mitchell, David M.
• Assistant Examiner(s): Weaver, Ross
• Application Number:
  US06/930,319
• Time in Patent Office: 776 Days
• Field of Search: 280/730, 280/731, 280/732, 280/728, 280/743
• US Class Current: 280/728.2
• CPC Class Codes: B60R 21/217 Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together

Abstract

A mounting for an inflatable safety bag having an opening in communication with the discharge of a gas generator to inflate the bag in an emergency condition in which the bag is clamped between a base retainer and an annular retainer and the peripheral region of the bag surrounding the opening has a chain-stitched stitch in the bag around the opening and adjacent the inner face of one of the retainers, so that upon inflation of the bag the forces which tend to pull the clamped peripheral region of the bag from the retainers will be resisted by the engagement of the chain-stitched stitch with the inner face.

Claims

1. A mounting for an inflatable safety bag having an opening in communication with the discharge of a gas generator to inflate the bag in an emergency condition, comprising a pair of retainers clamping between them a peripheral region of the bag surrounding the opening and a chain-stitched stitch in the bag around the opening and adjacent an inner face of at least one of the retainers, so that upon inflation of the bag the forces which tend to pull the clamped peripheral region of the bag from the retainers will be resisted by the engagement of said chain-stitched stitch with said inner face.

2. A mounting as set forth in claim 1 in which the pair of retainers includes a securely mounted base retainer and an annular retainer secured to the base retainer through the peripheral region of the bag, the stitch being located adjacent an inner annular face of the annular retainer.

3. A mounting as set forth in claim 2, in which the annular retainer has an outer upstanding flange.

4. A mounting as set forth in claim 1, including an upstanding surface of the gas generator engaging and deflecting the inner peripheral region in which the stitch is formed and in which the spacing between the inner face of the annular retainer and upstanding surface of the gas generator is such that the stitch is adjacent the inner face of the annular retainer and above the upper surface thereof.

5. A mounting as set forth in claim 1 in which the inner face of the retainer and the stitch are circular in shape and arranged concentrically so that the inner circumference of the retainer face slightly exceeds the outer circumference of the stitch.