Cover for an air bag housing

B - Operations – Transporting – 60 – R

Patent

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Details

B60R 21/20 (2006.01)

Patent

CA 2128924

COVER FOR AN INFLATABLE AIR BAG HOUSING Abstract of the Disclosure A cover for an inflatable air bag housing is formed of integrally molded resinous plastic material and defined therein is a hinge area and a thin fracture line forming a door which pivots to an open position upon fracture of the cover along the fracture line when an air bag is inflated. A metal reinforcing element is embedded in the resinous plastic material and includes segments diverging and below the hinge area forming an open space or void which is filled in with a low density collapsible, energy absorbing, rigid foam which exhibits minimal spring back. The filler helps prevent sagging or read-through of the cover above the void when pro- longed exposure to heat and sun is experienced. More- over, the foam filler absorbs energy during bag deploy- ment and aids in preventing plastic resin from leaking into the void space during the initial fabrication of the cover as the metal reinforcement element is molded in place.

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