| 摘要 |
A safety helmet includes a cap equipped with at least one visor, which is hinged to the sides of the front opening of the cap itself and can be rotated between a position of interception of the front opening and a raised position with respect to the opening. A shielding element is also hinged to the sides of the front opening of the cap and is rotatable both with respect to the cap and with respect to the visor. The relative rotary displacement of the shielding element with respect to the visor, and vice versa, is limited at a predefined angular interval, in both of the directions of rotation. |
