Method of Manufacture of an Energy Absorbing Tire Cage
AssigneeGoldcorp Canada Ltd.
InventorsScott Munroe, Donald Wilson
Life of this patent
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Abstract
A tire cage is disclosed for containing the debris from a tire explosion. The cage includes a lightweight energy absorbing material for protecting structural members of the cage from tire explosion damage so that the cage is reusable. The energy absorbing material may be a metallic foam or other open celled structured material that is able to absorb large amounts of kinetic energy by permanently deforming. The cage is particularly effective in containing explosions of large equipment tires 6 to 12 feet in diameter and having a stored kinetic energy in a range of approximately 900 kilojoules to 1500 kilojoules.
Claims4
A method for manufacturing a tire cage comprising:
- providing a tire enclosure frame for receiving a tire within an interior of the frame, said frame having at least one rigid member;
- providing a support for supporting a tire within said enclosure, said support attached to the frame, and said support positioned for contacting a split rim of a tire within said interior;
- wherein said support supports the tire in a position so that a split rim of the tire is propelled toward the at least one rigid member during a tire explosion;
- providing an additional volume in said interior beyond a space for enclosing the tire within the interior such that the additional volume is between the space for enclosing the tire and the rigid member, and wherein said space is effective for receiving an energy absorbing material, said energy absorbing material capable of permanently deforming while absorbing at least 900 kilojoules of kinetic energy imparted to the energy absorbing material by debris from tire explosion within the interior;
- providing an assembly within the additional space for supporting the energy absorbing material, said assembly supporting at least one layer of an energy absorbing material between the rigid member and the spit rim during a tire explosion;
- wherein said assembly includes a second rigid member for facilitating an at least substantially uniform deformation of the energy absorbing material such that said second rigid member is usable in a subsequent second tire explosion for facilitating an at least substantially uniform deformation of a replacement layer of the energy absorbing material.
Dependencies are inferred from the claim text.