Locking device for adjustable helmets

Details Locking device for adjustable helmets Locking device for adjustable helmets

A - Human Necessities

42

B

A42B 3/04 (2006.01) A42B 3/32 (2006.01)

Patent

CA 2357690

The invention relates to an adjustable helmet comprising a first and second shell portion adjustably connected together. Each shell features a smooth interference-free sliding surface on which the two shells fit together in an overlapping relationship. The two shells are locked together by a manually operable locking device adapted to engage corresponding anchoring holes. The smooth interference-free sliding surfaces allows easy adjustment of the helmet size.

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