| 摘要 |
<p>The Buckle comprises a box-like containment body, with a metal plate (1) with longitudinal edges folded in the shape of the letter U and provided at one end with an eyelet (1a) for coupling to a strap portion which is rigidly coupled to the edge of the helmet. A bayonet has, at one end, an eyelet for coupling to the other strap portion and, at the opposite end. A slot (8b) engages a fixed raised portion which protrudes from the plate. A release button (4), is arranged in opposition to return springs (6) and protrudes from the box-like body (2) for the actuation of a device suitable to allow the release of the bayonet from the raised portion. A metal plate is provided with an eyelet for fixed coupling to the strap and with longitudinal edges which are folded inwardly in the shape of the letter C, so as to constitute two sliding and retention guides for a release button arranged in opposition to at least one return spring. It is enclosed between an upper flat box-like body which is open at one end and a lower closure cover.</p> |
