Shock absorptive helmet—facemask interconnect
A unique attachment mechanism to connect a facemask to a helmet is described. This attachment mechanism uses a polymer urethane visco-elastic, or similar, material to absorb impact forces on the facemask to minimize injury for the person using the helmet. In some embodiments, a spring and bearing mechanism is used in conjunction with the polymer urethane visco-elastic material to further absorb forces. In another embodiment, a polymer urethane visco-elastic grommet on a screw is used for an upper attachment of the mask to the helmet, and a larger polymer urethane visco-elastic structure with an internal spring is used as the lower attachment between the helmet and the mask. In still another embodiment, the connection between the helmet and the mast is a U shaped structure with a flat spring enclosed.
1. An apparatus for attaching a helmet to a facemask, the apparatus comprising:
a polymer urethane visco-elastic structure in a U shape on each of two sides where the two sides are parallel, the structure resting against the facemask and against the helmet, wherein the structure has a slot removed from a side perpendicular to the U shape, inside of the U shape;
a first screw inserted in the structure and through a first hole in the helmet;
a first nut connected to the first screw;
a second screw inserted in the structure and through a first loop in the facemask; and
a second nut connected to the second screw.
2. The apparatus of claim 1 wherein the structure has spring inserted in the slot.
3. The apparatus of claim 2 wherein the spring is a flat spring.
4. The apparatus of claim 2 wherein the first screw and the second screw are inserted through a loop in the spring.
5. The apparatus of claim 1 wherein the helmet is an American football helmet.
6. The apparatus of claim 1 wherein the helmet is a hockey helmet.
7. The apparatus of claim 1 wherein the helmet is a lacrosse helmet.
8. The apparatus of claim 1 wherein the helmet is a baseball helmet.
9. The apparatus of claim 1 wherein the helmet is a motorcycle helmet.
10. An apparatus for attaching a helmet to a facemask, the apparatus comprising:
a polymer urethane visco-elastic structure in a U shape on each of two sides where the two sides are parallel, the structure resting against the facemask and against the helmet;
a first screw inserted in the structure and through a first hole in the helmet;
a first nut connected to the first screw;
a second screw inserted in the structure and through a first loop in the facemask;
a second nut connected to the second screw; and
a polymer urethane visco-elastic grommet in a shape of a right circular hollow cylinder, placed tightly within the first hole in the helmet, where the first screw is inserted in the grommet and through a hole in the helmet, held in place with the first nut.
11. The apparatus of claim 1 wherein the first nut is a T-nut.
12. An apparatus for attaching a helmet to a facemask, the apparatus comprising:
a polymer urethane visco-elastic structure in a U shape on each of two sides where the two sides are parallel, the structure resting against the facemask and against the helmet;
a first screw inserted in the structure and through a first hole in the helmet;
a first nut connected to the first screw;
a second screw inserted in the structure and through a first loop in the facemask;
a second nut connected to the second screw; and
a polymer urethane visco-elastic grommet in a shape of a right circular hollow cylinder, placed tightly within the first loop in the facemask, where the second screw is inserted in the grommet and through the first loop in the facemask, held in place with the second nut.
13. The apparatus of claim 1 wherein the second nut is a T-nut.
14. A method of connecting a facemask to a helmet, comprising:
inserting a first screw through a polymer urethane visco-elastic structure, through a polymer urethane visco-elastic grommet, and through a hole in the helmet, there the structure is in a U shape on each side, and where the two sides are parallel, the structure resting against the helmet;
connecting a first nut to the first screw, thereby holding the structure to the helmet;
inserting a second screw through the structure and through a loop in the facemask; and
connecting a second nut to the second screw, thereby holding the structure to the facemask.
15. The method of claim 14 wherein the structure has a slot removed from a side perpendicular to the U shape, inside of the U shape.
16. The method of claim 15 wherein the structure has spring inserted in the slot.
17. The method of claim 16 wherein the spring is a flat spring.
18. The method of claim 16 wherein the first screw and the second screw are inserted through a loop in the spring.
19. The method of claim 14 wherein the helmet is an American football helmet.