Patent ID: 6311338
Filing Date: 2001-11-06
Classification: A42B

Abstract:
A protective helmet partially formed by a main outer shell having a longitudinal plane of symmetry, said helmet comprising a holding and positioning arrangement adapted to be fastened to a user's head, said arrangement comprising a set of flexible straps, said holding and positioning arrangement comprising a mechanism for adjusting the length of the straps, said mechanism including a pulley device, said pulley device comprising a lever buckle arranged on the straps and a complementary return buckle, wherein the straps are affixed to the main outer shell, and starting from the point where they are affixed to the main outer shell, pass through a guide of the lever buckle, then come back to pass in the complementary return buckle, before slidably passing again beneath a pivoting lever arm of the lever buckle, that is susceptible of blocking said slidable passing.