Abstract: A headgear adjustment mechanism is provided that includes a worm having a central axis of rotation, a first headband element, a second headband element, a spur gear, and a housing. The first headband element includes (i) a worm rack disposed in operative engagement with the worm, and (ii) a first pinion rack. The second headband element includes a second pinion rack. The spur gear is disposed in simultaneous operative engagement with the first pinion rack and the second pinion rack, and the housing at least partially encloses the first and second headband elements. During operation of the adjustment mechanism, rotation of the worm about the axis of rotation causes the first headband element and the second headband element to translate in opposite directions with respect to the worm, thereby adjusting a fit of the headgear.

Abstract: A headgear adjustment mechanism is provided that includes a worm having a central axis of rotation, a first headband element, a second headband element, a spur gear, and a housing. The first headband element includes (i) a worm rack disposed in operative engagement with the worm, and (ii) a first pinion rack. The second headband element includes a second pinion rack. The spur gear is disposed in simultaneous operative engagement with the first pinion rack and the second pinion rack, and the housing at least partially encloses the first and second headband elements. During operation of the adjustment mechanism, rotation of the worm about the axis of rotation causes the first headband element and the second headband element to translate in opposite directions with respect to the worm, thereby adjusting a fit of the headgear.

Abstract: A headgear adjustment mechanism is provided that includes a worm having a central axis of rotation, a first headband element, a second headband element, a spur gear, and a housing. The first headband element includes (i) a worm rack disposed in operative engagement with the worm, and (ii) a first pinion rack. The second headband element includes a second pinion rack. The spur gear is disposed in simultaneous operative engagement with the first pinion rack and the second pinion rack, and the housing at least partially encloses the first and second headband elements. During operation of the adjustment mechanism, rotation of the worm about the axis of rotation causes the first headband element and the second headband element to translate in opposite directions with respect to the worm, thereby adjusting a fit of the headgear.

Abstract: A protective sport helmet, such as for lacrosse, includes a hard shell portion, a lining portion, and an adjustment mechanism. The inner side of the adjustment mechanism includes an adjustment protective pad. Together, the lining portion and the inner surface of the adjustment protective pad define an interior region of the helmet wherein the user's head is introduced. The adjustment mechanism includes a lower rear shell portion having a clutching mechanism that allows the user to manually adjust the size of the interior region via a strapping system of the helmet to couple snugly around the user's head. The clutching mechanism also prevents the interior region from being easily altered in the absence of manual adjustment to the adjustment mechanism. The strap includes a hard end material that engages the adjustment mechanism and a flexible, durable and tough material that conforms to a wearer's head.

Abstract: A protective sport helmet, such as for lacrosse, includes a hard shell portion, a lining portion, and an adjustment mechanism. The inner side of the adjustment mechanism includes an adjustment protective pad. Together, the lining portion and the inner surface of the adjustment protective pad define an interior region of the helmet wherein the user's head is introduced. The adjustment mechanism includes a lower rear shell portion having a clutch mechanism that allows the user to manually adjust the size of the interior region via a strapping system of the helmet to couple snugly around the user's head. The clutching mechanism can prevent the interior region from being easily altered in the absence of manual adjustment to the adjustment mechanism. The strap includes a hard end material that engages the adjustment mechanism and a flexible, durable and tough material that conforms to a wearer's head.

Abstract: A headgear adjustment mechanism is provided that includes a worm having a central axis of rotation, a first headband element, a second headband element, a spur gear, and a housing. The first headband element includes (i) a worm rack disposed in operative engagement with the worm, and (ii) a first pinion rack. The second headband element includes a second pinion rack. The spur gear is disposed in simultaneous operative engagement with the first pinion rack and the second pinion rack, and the housing at least partially encloses the first and second headband elements. During operation of the adjustment mechanism, rotation of the worm about the axis of rotation causes the first headband element and the second headband element to translate in opposite directions with respect to the worm, thereby adjusting a fit of the headgear.

Abstract: Embodiments of a fixture secured, securable to, or integral with the outer shell of a helmet to facilitate convenient positional adjustment, attachment and removal of multiple accessories include a fixture, attachable to the helmet, for securely receiving an accessory, wherein the fixture comprises a rail for slidably and adjustably receiving a plural of accessories thereon.

Abstract: A protective sport helmet, such as for lacrosse, includes a hard shell portion, a lining portion, and an adjustment mechanism. The inner side of the adjustment mechanism includes an adjustment protective pad. Together, the lining portion and the inner surface of the adjustment protective pad define an interior region of the helmet wherein the user's head is introduced. The adjustment mechanism includes a lower rear shell portion having a clutch mechanism that allows the user to manually adjust the size of the interior region via a strapping system of the helmet to couple snugly around the user's head. The clutching mechanism can prevent the interior region from being easily altered in the absence of manual adjustment to the adjustment mechanism. The strap includes a hard end material that engages the adjustment mechanism and a flexible, durable and tough material that conforms to a wearer's head.

Abstract: A protective sport helmet, such as for lacrosse, includes a hard shell portion, a lining portion, and an adjustment mechanism. The inner side of the adjustment mechanism includes an adjustment protective pad. Together, the lining portion and the inner surface of the adjustment protective pad define an interior region of the helmet wherein the user's head is introduced. The adjustment mechanism includes a lower rear shell portion having a clutching mechanism that allows the user to manually adjust the size of the interior region via a strapping system of the helmet to couple snugly around the user's head. The clutching mechanism also prevents the interior region from being easily altered in the absence of manual adjustment to the adjustment mechanism. The strap includes a hard end material that engages the adjustment mechanism and a flexible, durable and tough material that conforms to a wearer's head.

Abstract: An improved retention system for a protective helmet comprises slide/coupling mechanisms on opposite sides of the helmet shell, and a movable element at the rear of the helmet. Fastening of the chinstrap secures the helmet in the downward direction and tightens the movable element against the nape of the neck, thereby securing the helmet in the area of the occipital lobe.