| 摘要 |
A mortise lock comprising an outer casing, a bolting assembly, a cylinder arrangement (34;502), a locking mechanism (600;1100), at least one extension rod (528T, 528T, 528R) and a split-nut arrangement, wherein: the cylinder arrangement is associated with the bolting assembly (526) and the locking mechanism, and is adapted for activating the bolting assembly to assume an unbolted position and a bolted position; the locking mechanism comprises a stopper adapted for assuming an unlocked position, corresponding to the bolting assembly' s unbolted position, and a locked position, corresponding to the bolting assembly' s bolted position, and adapted in the locked position for preventing retraction of the bolting assembly into the unbolted position thereof; the at least one extension rod is articulated to the locking mechanism so as to assume a retracted position corresponding to the bolting assembly' s unbolted position, and an extended position corresponding to the bolting assembly's bolted position; the split nut arrangement comprises an inside nut plate associated with an inside handle nut (512) and an outside nut plate associated with an outside handle nut; and wherein the inside nut plate is associated with the at least one extension rod and the stopper such that displacement of the inside nut plate entails simultaneous displacement of the stopper from the locked position to the unlocked position, and displacement of the extension rod from the extended position to the retracted position. |
