Abstract: A movement device for a helmet for moving a first element of the helmet with respect to a second element of the helmet is described. The movement device includes a pivot element for pivoting about an axis of rotation, and a pivot seat, in which the pivot element is arranged. The pivot element includes an eccentric portion or cam, and the pivot seat includes a first seat region and a second seat region. The first seat region is in a position angularly offset and linearly translated with respect to the second seat region. A first position of the pivot element corresponds to the first seat region and a second position of the pivot element corresponds to the second seat region.

Abstract: An assembly is described. The assembly has a protective shield for a helmet, such as a full visor, a partial visor or a chin guard and a pivot adapted to pivot the protective shield on a shell of the helmet. The assembly also has a locking device.