| 摘要 |
A locking apparatus 1 for locking a slide-means operated lock device 2, comprises a cylinder lock 3 such as a key operated multipoint lock and a separate lever-type mortise lock 4. In the embodiment shown, the lever-type mortise lock 4 may be a five lever mortise lock or a three lever mortise lock. In the locked position, the mortise lock 4 disables the operation of the handle to open the door. Thus, if the cylinder lock 3 is tampered with as by key-bumping or any other means, operation of the handle does not allow the door to be opened as the bolt 11 of the mortise lock 4 is engaged in the slide bar 5b, i.e. is immovable, and so the bolts 6 remain in the locked position. Only on disengagement of the mortise lock can the slide bar 5 be operated. |
