Abstract: An apparatus for deploying an air bag through an automotive dash panel (12) includes an air bag door (16) integrally formed in the panel and defined by a door perimeter including a frangible edge (18) of reduced cross section. A dispenser (20) supports the air bag (24) behind the door. A metal reaction plate (28) is positioned between the air bag (24) and the door (16). When the air bag inflates, it forces the reaction plate (28) to bend around a horizontal hinge line (36). As the reaction, plate pivots it concentrates inflation force along a lower portion of the frangible door edge. This helps to predictably separate the door from the dash panel by tearing along the lower door edge and allowing the tear to propagate up two side edges. In one embodiment, the tear also propagates across an upper edge to completely separate the door from the panel. At least one, and preferably two or three tethers (50) limit how far the door can travel during air bag inflation.

Abstract: An inflatable restraint assembly for passengers in automotive vehicles including an air bag door integrally formed in an automotive trim of a first material. The integral air bag door is defined at least in part by a tear guide when in a closed position. The air bag door is movable from the closed position to provide a path for an air bag to deploy through. The air bag door is movable out of the closed position by at least partially separating from the trim panel along a door seam at least partially defined by the tear guide. A retaining structure is configured to preclude at least a portion of the air bag door from departing the immediate vicinity of the trim panel during air bag deployment. According to one embodiment a hinge comprising a second material may is embedded at least partially within the first material and spans the door seam.

Abstract: An apparatus for deploying an air bag through an automotive dash panel includes an air bag door integrally formed in the panel and defined by a door perimeter including a frangible edge of reduced cross section. A dispenser supports the air bag behind the door. A metal reaction plate is positioned between the air bag and the door. When the air bag inflates, it forces the reaction plate to bend around a horizontal hinge line. As the reaction plate pivots it concentrates inflation force along a lower portion of the frangible door edge. This helps to predictably separate the door from the dash panel by tearing along the lower door edge and allowing the tear to propagate up two side edges. In one embodiment, the tear also propagates across an upper edge to completely separate the door from the panel. At least one, and preferably two or three tethers limit how far the door can travel during air bag inflation. A stop member may be included to limit reaction plate bending.

Abstract: An improved injection molding system having gas injected through an injection pin associated with an ejector pin. The injection pin is movable between a retracted position at which it is sealed from the mold cavity, to an extended position where it delivers gas into the cavity. In a first embodiment, the injection pin is powered by a cylinder to move between the extended and retracted positions. In a second embodiment, the injection pin is actuated by the pressurized gas. The improved system injects gas into a mold cavity without the requirement of a separate injection aperture. Further, the inventive injection pins have outlet ports sealed from the flow of plastic until the injection pin is extended to deliver the gas.

Abstract: A novel pre-form for a fiber reinforced synthetic material vehicle wheel comprises:a substantially planar spider portion comprising sheet molding compound comprising randomly oriented fiber reinforced resin, substantially all of which fiber is from about 0.5 to 2.0 inches in length;a first tubular section comprising fiber reinforced resin sheet surrounding said spider portion about an axis substantially normal to the plane of said spider portion; anda second tubular section surrounding and substantially coaxial with said first tubular section comprising fiber reinforced resin sheet, said fiber reinforced resin sheet of said first and second tubular sections preferably comprising random, chopped fiber of about 0.5 to 2.0 inches length and continuous fiber in a ratio of about from 1:1 to 1:4, respectively. A novel fiber reinforced synthetic material wheel is made by compression molding said pre-form.

Abstract: A novel pre-form for a fiber reinforced synthetic material vehicle wheel comprises:a substantially planar spider portion comprising sheet molding compound comprising randomly oriented fiber reinforced resin, substantially all of which fiber is from about 0.5 to 2 inches in length;a first tubular section comprising fiber reinforced resin sheet surrounding said spider portion about an axis substantially normal to the plane of said spider portion; anda second tubular section surrounding and substantially coaxial with said first tubular section comprising fiber reinforced resin sheet, said fiber reinforced resin sheet of said first and second tubular sections preferably comprising random, chopped fiber of about 0.5 to 2 inches length and continuous fiber in a ratio of about from 1:1 to 1:4, respectively. A novel fiber reinforced synthetic material wheel is made by compression molding said pre-form.