초록 ▼

An improved composite for absorbing and dispersing impacting forces is disclosed. The composite includes a flexible plastic enclosure defining an internal cavity. The flexible enclosure is generally impermeable to air and capable of having its internal pressure changed. The composite further include

An improved composite for absorbing and dispersing impacting forces is disclosed. The composite includes a flexible plastic enclosure defining an internal cavity. The flexible enclosure is generally impermeable to air and capable of having its internal pressure changed. The composite further includes a foam core filling the cavity and retained within the cavity and adhered on substantially all of its external surface to the internal surface of the cavity. The cavity can be pressurized for higher impact absorbance. Methods for fabricating the composites are disclosed, as well.

대표청구항 ▼

1. A method for producing a shock absorbing composite and dispersing impacting forces comprisingforming a plastic enclosure having a shock absorbing configuration and defining an internal cavity therein, placing within said enclosure a foam core filling said cavity, retaining said core within said c

1. A method for producing a shock absorbing composite and dispersing impacting forces comprisingforming a plastic enclosure having a shock absorbing configuration and defining an internal cavity therein, placing within said enclosure a foam core filling said cavity, retaining said core within said cavity such that the composite is generally impermeable to air but includes means for adding and removing pressurizing fluid from the internal cavity and such that the enclosure and the core are prestressed by one another, the core adhered on substantially all of its external surface with a heat activated adhesive to the internal surface of the enclosure, and pressurizing the core through said means for adding and removing pressurizing fluid from the internal cavity to a value between 0 and 20 psig effective to provide efficient impact absorption.