| 摘要 |
<p>The clasp consists of a flat component in the form of a tongue (1) with a central opening (4) and fastening lugs (5) at one end, a second component in the form of a rail (2) shaped to receive the tongue, with holes (6, 7) for fastenings and a pivot pin, and a third U-shaped and spring-loaded component or catch (3) that presses the tongue down inside the rail and locks it automatically when inserted. The clasp is opened by lifting the catch.</p> |
