| 摘要 |
The device (1) comprises
a support structure (2) adapted to be fixed at an opening with which a door is associated,
a slider (7) mounted in the support structure (2) movably along a predetermined operational trajectory, from a rest position to a working position, against the action of return means (8), this slider (7) being adapted to be displaced by the door from the rest position to the working position when the door is being closed, to activate an electric sensor device (10), which indicates that the door has been closed. A lever (13) is mounted oscillatably in the support structure (2) about a fixed axis (14) and has a retaining arm (13a) for interaction with the door. The slider (7) has a control formation (15) adapted, when the slider passes from the rest position to the working position, to cause the lever (13) to pass from an inactive disengagement position to an active engagement position in which its retaining arm (13a) is capable of retaining the door in the closed position. Locking devices (5, 20, 21) can be activated to lock the slider (7) in the working position and, consequently, lock the lever (13) in the active engagement position. |
