Safety visor

A - Human Necessities – 42 – B

Patent

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Details

A42B 3/22 (2006.01) A61F 9/04 (2006.01)

Patent

CA 2371707

A safety visor is produced by etching of metal and comprises a grid which defines a large number of light-permeating holes (7, 8, 9). The safety visor has at least two zones (2, 3, 4) where the holes (7, 8, 9) are of different areas and/or configuration. An upper central zone (2) has greater light transmission than the remaining zones (2, 4) of the safety visor. The C-C spacing for the holes (7, 8, 9) is constant in both the vertical and lateral directions regardless of in which region of the safety visor the holes (7, 8, 9) are located. In one preferred embodiment, the holes (7, 8, 9) are hexagonal with two approximately parallel sides which are longer than the remaining sides and are directed in the vertical direction of the safety visor.

L'invention concerne une visière de sécurité produite par attaque d'un métal, qui comprend une grille délimitant un grand nombre de trous de diffusion de la lumière (7, 8, 9). La visière de sécurité comporte au moins deux zones (2, 3, 4) dans lesquelles les trous (7, 8, 9) présentent une surface et/ou une configuration différentes. Une zone centrale supérieure (2) offre une plus grande transmission de lumière que les zones restantes (3, 4) de la visière de sécurité. L'espacement C-C des trous (7, 8, 9) est constante aussi bien dans le sens vertical que dans le sens latéral, quelle que soit la zone de sécurité de la visière dans laquelle les trous (7, 8, 9) sont situés. Dans une forme de réalisation préférée, les trous (7, 8, 9) sont de forme hexagonale et présentent deux côtés approximativement parallèles dont la longueur est supérieure à celle des autres côté, lesquels deux côtés sont orientés dans le sens vertical de la visière de sécurité.

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