| 摘要 |
PROBLEM TO BE SOLVED: To provide a safety helmet of which transparency or brightness of visual field can be more surely decreased by a wearer, following to spontaneous operation of the wearer himself. SOLUTION: The safety helmet comprises a cap (1) equipped with at least one visor (2); (102), which is hinged to the sides (3) of the front opening (4) 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, and a shielding element (5); (105), which 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 helmet comprises first means (12), (15), (16); (112), (115), (116) for limiting, at a predefined angular interval, in both of the directions of rotation, the relative rotary displacement of the shielding element with respect to the visor, and vice versa. COPYRIGHT: (C)2006,JPO&NCIPI
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