| 摘要 |
<p>The lock is for two superimposed carriages and acts on the lower cross piece (12,13) of the upper and the cross pieces (10,11) of the lower, using a lever (17). This is fixed to a strap (16) pivoting on the cross pieces of the lower carriage. The lever passes into a hinge ring (15) fixed to the lower cross pieces of the upper carriage. Manual lifting of the lever and ring, placing the lever in the ring, then freeing the ring are possible, due to a bend in the lever.</p> |
