| 主权项 |
1. A motion restrictor device to be worn with a protective helmet so as to reduce the risk of head or spine injury caused by injurious movement of the helmet, said motion restrictor device comprising:
a harness wearable by a user of the helmet, said harness presenting a central neck opening which receives the neck of the user when the harness is worn, said harness presenting laterally spaced apart shoulder-engagement sections that extend in a fore-and-aft direction along opposite sides of the neck opening, with each shoulder-engagement section being configured for placement on top of a respective shoulder of the user when the harness is worn, said neck opening extending in the fore-and-aft direction to present opposite fore and aft neck opening ends; a helmet-engaging component including a pair of swingable helmet-engaging levers pivotally mounted relative to the harness at a pivot located closer to a first one of the neck opening ends than a second one of the neck opening ends, said helmet-engaging levers presenting corresponding laterally spaced apart, fore-and-aft extending helmet-engagement surfaces, said levers extending in the fore-and-aft direction from the pivot toward the second one of the neck opening ends, such that the helmet-engagement surfaces are positioned over the shoulder-engagement sections on opposite sides of the neck of the user when the harness is worn, each of said helmet-engagement surfaces being configured to shift along a range of motion while in slidable contact with the helmet as the helmet moves; and a brake assembly operable to restrict shifting of at least one of the helmet-engagement surfaces in response to injurious movement of the helmet. |
