| 摘要 |
PURPOSE: A mortise for a door lock is provided to release a dead bolt and a latch at the same time with a dead bolt releasing tool, thereby providing user convenience when operating the dead bolt and the latch bolt at the same time. CONSTITUTION: A mortise for a door lock includes a mortise case (10), a dead bolt (20), a latch bolt (30), and a guard bolt (40). The dead bolt and the latch bolt includes a lever rotating body (71), a first rotary lever (72), a second rotary lever, and a rotating base plate (74). The lever rotating body includes a rectangular groove (71) for inserting a lever shaft (70). The first rotary lever is rotated with the lever rotating body and arranged to be hung on a locking protrusion (21) of the rear side of the dead bolt. The second rotary lever is rotated with the lever rotating body and elastically supported by a spring (73a). One extendable arm (73a) on one side of the second rotary lever is in contact with a locking groove (23) on the rear side of the dead bolt to be detached. The rotating base plate is arranged on the lower side of the second rotary lever, is rotated with the lever rotating body, and includes an insertion groove (74a). |
