| 摘要 |
<p>A lock mechanism (11,12) carried by one of the vertical uprights (7a,7b) of the leaves controls a connection unit (10) in two parts (10a,10b). Displacement of one of the parts controls the movement of a bolt (19) which engages a fixed strike plate (18). The lock mechanism can only activate the connection unit with simultaneous sliding in the same direction of the two parts in order to ensure penetration of the bolt in the strike plate after withdrawal of a connection unit retractable locking stop (26a,26b). This stop is carried by one of the uprights and releases the connection unit under the effect of a control peg (32) integral with the other uprights and pushes back the stop only when the two uprights are facing each other.</p> |
