| 摘要 |
SYNTACTIC FOAM TIRE INSERTS FOR FLAT PROOF TIRES AND APPARATUS FOR MANUFACTURING A PORTION THEREOF The invention is a flexible, pressurized closed cell, syntactic foam tire insert designed to make tires relatively flat-proof, and an apparatus for making a portion of said insert. The tire insert is comprised of a plurality of preformed elastomeric spheres compressed and molded together into the configuration of the interior of a tire casing, or a segment thereof. The elastomeric spheres are pressure molded from a castable plastic resin to form a hollow, thin-walled, seamless, pressurized, elastomeric sphere. The elastomeric spheres are coated with a liquid resin to fill any voids between said elastomeric spheres after they are compressed, and to bond said elastomeric spheres together when cured. The pressurized elastomeric spheres are manufactured in an apparatus that simultaneously rotates the mold about two perpendicular axes of said spheres to provide a uniform, thin-walled sphere. |
