Attachment system for frontal helmet extension to a helmet

1. Protective headgear comprising:

an outer shell;

a visor having a leading edge, a trailing edge, and an inner surface extending from the trailing edge to the leading edge defining an extension direction, wherein the trailing edge and the inner surface are shaped to complement a portion of the outer shell;

an attachment system for detachably coupling the visor to the outer shell and comprising one or more magnetic elements disposed on the outer shell and a plurality of complementary elements disposed on the inner surface of the visor in a linear arrangement such that the plurality of complementary elements extend linearly along the inner surface in the extension direction, the plurality of complementary elements positioned to correspond to the location of at least one of the one or more magnetic elements, wherein a first total number of the plurality of complementary elements extending along the inner surface of the visor is greater than a second total number of the one or more magnetic elements disposed on the outer shell; and

wherein the magnetic properties of the one or more magnetic elements are adapted to magnetically attract the complementary elements and hold the visor in each of a plurality of desired positions relative to the outer shell, keep the visor in place during ordinary use of the headgear, and release the visor from the outer shell upon an impact load applied to the visor.

2. The protective headgear of claim 1 , wherein each of at least two magnetic elements are mounted at generally opposite sides of the outer shell and, wherein each of at least two complementary elements are mounted at corresponding locations on the visor.

3. The protective headgear of claim 1 , wherein at least one of the one or more magnetic elements is mounted at an upper area along a midline of the outer shell and the plurality of complementary elements of the visor are substantially tangent to an outer surface of the outer shell.

4. The protective headgear of claim 1 , wherein the visor extends from the outer shell in a plane that is generally parallel to a horizontal plane of the outer shell.

5. The protective headgear of claim 1 , wherein the visor is arranged to pivot about an axis extending through the sides of the outer shell to orient the visor at a selected angle relative to a horizontal plane.

6. The protective headgear of claim 1 , further comprising an adjustment mechanism having one or more ridges positioned between adjacent complementary elements of the visor that are shaped to complement the one or more magnetic elements.

7. The protective headgear of claim 6 , wherein the adjustment mechanism allows for incremental adjustments of the visor in a vertical direction.

8. The protective headgear of claim 6 , wherein the one or more ridges are contoured to interact with the one or more magnetic elements and allow repositioning and holding the visor in a vertical direction.

9. A headgear, comprising:

an outer shell including one or more first coupling elements positioned along the outer shell;

a frontal extension having an inner surface shaped to complement one or more portions of the outer shell, the frontal extension including one or more second coupling elements positioned along the inner surface to correspond with the one or more first coupling elements to couple the frontal extension to the outer shell, wherein a first total number of the second coupling elements positioned along the inner surface of the frontal extension is greater than a second total number of the one or more first coupling elements positioned along the outer shell;

wherein each of the one or more first coupling elements includes a protrusion and each of the one or more second coupling element defines a recess configured to receive a respective protrusion of the one or more first coupling elements; and

wherein the one or more first coupling elements and the one or more second coupling elements are configured to cooperatively at least one of (i) couple the frontal extension to the outer shell with a break away connection and (ii) facilitate toolless pivotable adjustment of an angle at which the frontal extension extends from the outer shell.

10. The headgear of claim 9 , wherein each of the one or more first coupling elements is disposed on a respective portion of the outer shell having a continuous surface.

11. The headgear of claim 10 , wherein the continuous surface has a convex shape.

12. The headgear of claim 9 , wherein the one or more first coupling elements and the one or more second coupling elements are configured to couple the frontal extension to the outer shell with the break away connection such that the frontal extension is effectively secured to the outer shell during ordinary use of the headgear, while allowing release of the frontal extension from the outer shell in response to an impact to the frontal extension.

13. The headgear of claim 9 , wherein the one or more first coupling elements and the one or more second coupling elements are configured to facilitate the toolless pivotable adjustment of the angle at which the frontal extension extends from the outer shell in response to a user pulling forward or pushing backward on the frontal extension.

14. The headgear of claim 9 , wherein one of (i) the one or more first coupling elements and (ii) the one or more second coupling elements include an indexing element, wherein the indexing element is configured to facilitate incremental pivotable repositioning of the frontal extension and assist in holding the frontal extension at a selected angle.

15. The headgear of claim 14 , wherein the indexing element has one or more ridges that are contoured to complement a coupling element of the other one of (i) the one or more first coupling elements and (ii) the one or more second coupling elements.

16. The headgear of claim 9 , wherein the one or more first coupling elements and the one or more second coupling elements include at least one of magnetic elements and complementary elements, wherein the magnetic elements comprise a permanent magnet material and the complementary elements comprise a ferrous material.

17. The headgear of claim 9 , wherein the one or more second coupling elements of the frontal extension cover the one or more first coupling elements of the outer shell and the one or more second coupling elements are positioned along the inner surface of the frontal extension such that the frontal extension and the outer shell appear to be a unitary structure when coupled.

18. A headgear, comprising:

an outer shell including one or more first coupling elements positioned along the outer shell;

an extension having an inner surface shaped to complement one or more portions of the outer shell, the extension including one or more second coupling elements positioned along the inner surface to correspond with the one or more first coupling elements to couple the extension to the outer shell, wherein a first total number of the second coupling elements positioned along the inner surface of the extension is greater than a second total number of the one or more first coupling elements positioned along the outer shell;

wherein one of (i) each of the one or more first coupling elements and (ii) each of the one or more second coupling elements includes a protrusion, and the other of (i) each of the one or more first coupling elements and (ii) each of the one or more second coupling elements defines a recess configured to receive a respective protrusion; and

wherein the one or more first coupling elements and the one or more second coupling elements are configured to cooperatively at least one of (i) couple the extension to the outer shell with a break away connection and (ii) facilitate toolless relocation of the extension in relation to the outer shell.

19. The headgear of claim 18 , wherein the extension is disposed on a front surface of the outer shell.