Abstract: A protecting helmet is disclosed having a rigid outer shell, a front opening in the rigid shell for the face of a user, a protective visor rotatable between a lowered position intercepting the front opening and a raised position disengaged from the front opening, and a raising/lowering mechanism of the protective visor. The raising/lowering mechanism has a base member, movably or integrally constrained to, or made in a single piece with, the outer shell and arranged in a side position with respect to the front opening and a fastening pin constrained in a respective opening of the protective visor. The base member has a seat adapted to rotatably and reversibly house the fastening pin and an elastic countering member for the fastening pin. The base member has an unlocking device configured to act on the elastic countering member to release the fastening pin from the seat.

Abstract: A protecting helmet is disclosed having a rigid outer shell, a front opening for the face of a user, and a protective visor having a raising/lowering mechanism. The raising/lowering mechanism has a base member, movably or integrally constrained to, or made in a single piece with, the outer shell and arranged in a side position with respect to the front opening and a fastening pin constrained in a respective opening of the protective visor. The base member has a seat adapted to rotatably and reversibly house the fastening pin; and the mechanism has member, a first magnetic-coupling member being constrained to, or made in a single piece with, the fastening pin, and a second magnetic-coupling member being constrained to, or made in a single piece with, the base member.