| 摘要 |
<p>The inner surfaces of the outer ends of the transparent visor (5) are equipped with a T-shaped projection (50, 500), a bow-shaped projection (51) with a serrated edge (510) along one side, and a sliding element (52, 520). A basic joining plate (7) is located at both sides of the front opening (60) in the helmet (6), comprising an insertion space (70, 71) for the T-shaped projection (50, 500), a slot with stops at both ends and with a serrated edge engaging with the edge (510) at the visor (5), and a curved slot for the insertion of the sliding element (52, 520). The teeth forming the serrated edges have rounded crests, facilitating a smooth motion.</p> |
