| 摘要 |
FIELD: head protective equipment. ^ SUBSTANCE: protective helmet has casing with shield on its front part and pockets for attachment of cap, main rigidity belt with water outlet formed as channel provided at rear and side parts of casing, upper top-shaped part with longitudinal rigidity ribs symmetrically arranged at the outside and continuously joined with front, side, and rear parts of casing. Rigidity ribs are provided with rounded portions in their front and rear parts, said rounded portions being oriented toward main rigidity belt. Casing is equipped with additional rigidity belt defined in its lower part by inclined casing wall and vertical wall of main rigidity belt. Front, rear and side parts of casing, in front projections of casing, are equipped with inclined rectilinear walls on parts between main rigidity belt and top-shaped upper part. Rectilinear walls are connected through transition lines with inclined wall of additional rigidity belt. Additional and main rigidity belts have U-shaped section. ^ EFFECT: increased extent of protecting worker's head. ^ 2 cl, 6 dwg |
