Adjustable helmet

A helmet comprising:

• a shell including first and second discrete shell sections in overlapping engagement with one another, said sections being slidable relative to one another along a longitudinal direction of the helmet;
• an adjustment mechanism mounted to said first shell section;
• a connector mounted between said second shell section and said adjustment mechanism;
• and
• wherein the entire connector moves in the general direction of said adjustment mechanism when pulled by said adjustment mechanism, to encourage said second shell section to slide and vary the shape of the volume defined by said helmet.

A helmet comprising:

• a shell including a first shell section and a second shell section, said sections being slidable relative to one another along a longitudinal direction of the helmet;
• an adjustment mechanism mounted to said first shell section;
• a connector mounted between said second shell section and said adjustment mechanism;
• wherein the entire connector moves in the general direction of said adjustment mechanism when pulled by said adjustment mechanism, to encourage said second shell section to slide and vary the shape of the volume defined by said helmet;
• and
• wherein said adjustment mechanism includes a sprocket rotatably mounted thereto, said connector includes at least two teeth for engaging said sprocket, and wherein said connector is displaced when said sprocket is rotated.

A helmet comprising:

• an external protective shell including a first shell section and a second shell section, said second shell section being movable relative to said first shell section;
• protective material mounted internally to said first shell section with at least a portion of said material being movable relative to said first shell section;
• an internal adjustment mechanism mounted adjacent and inside of said second shell section;
• and
• a connector directly connected to said movable portion of protective material and to said adjustment mechanism, said connector being displaceable by said adjustment mechanism such that said connector moves said movable portion of protective material so as to vary the volume defined by said helmet.

A helmet comprising:

• an external protective shell;
• protective material mounted internally on said shell with at least a portion of said material being movable relative to said shell;
• an adjustment mechanism mounted adjacent said shell;
• and
• a connector directly connected to said movable portion of protective material and to said adjustment mechanism, said connector being displaceable by said adjustment mechanism such that said connector moves said movable portion of protective material no as to vary the volume defined by said helmet;
• and wherein said adjustment mechanism includes a sprocket rotatably mounted thereto, said connector includes at least two teeth for engaging said sprocket, and wherein said connector is displaced when said sprocket is rotated, said adjustment mechanism including a ratchet to facilitate rotation of said sprocket in one direction and to inhibit rotation of said sprocket in the other direction, said ratchet including a pawl and at least two corresponding notches defined along a generally circular feature which is axially aligned with said sprocket, and wherein said notches include an inclined face for permitting movement of said pawl out of said notch when said sprocket is rotated in said one direction.