| 摘要 |
<p>A twistlock for reversibly engaging with a comer casting of a shipping container to fasten the shipping container on a railway truck The twistlock comprises a housing with a top and a bottom. The bottom of the housing is connected or adapted for connection with a railway truck surface. The twistlock has an upright shaft with a corner casting engaging head on top, the shaft being rotatable relative to the housing between an engaged position and a disengaged position of the head. The head is elongate laterally with respect to the shaft and is in the disengaged position when aligned with a slot in a corner casting in which position it can fit through the corner casting. In the engaged position the head is angled with respect to the slot so that when positioned therein an underneath surface of the head engages with upwardly facing surfaces inside the corner casting to inhibit lifting of the container off of the twistlock. The shaft biased to the engaged position preferably by a spring. The shaft is journalled on the housing to form two bearings, an upper bearing at an upper portion of the shaft and a lower bearing at a lower portion of the shaft.</p> |
