| 摘要 |
<p>A safety fastener for harness lugs includes a strong plate (24) tiltably mounted in a hollow body (2). A cover disc (14) is rotatably mounted on the body (2) between a locking position, a receiving position and a release position. The strong plate (24) is biased by springs (28) into a lug retaining disposition. Inner projections (30) on the strong plate (24) engage cams (12) on the centre spindle (8). The disc (14) is held in the locking position by a push button (16). When in this locking position projections (38) on the spindle (8) prevent tilting or axial movement of the strong plate (24). To engage harness lugs (6), the push button (16) is pressed inwardly, and the disc (14) is rotated against the bias of leaf springs (34). This rotation positions the projections (30) so as to be clear of the projections (38) thereby enabling the strong plate (24) to be tilted to receive the lugs. When the disc (14) is released the leaf springs return the disc (14) to the starting position where the lock engages, and in which the projections (38) prevent the strong plate (24) from rising so that the mechanism is inertia proof. To release the lugs, the push button (16) is pressed and the operating disc is turned until the projections (30) ride up on the cams (12) thereby raising the strong plate (24) sufficiently to release the lugs.</p> |
