| 摘要 |
PURPOSE: A landing-door locking device is provided to safely lock a landing door when the movement control members of both landing doors are damaged and out of order. CONSTITUTION: A landing-door locking device comprises a first landing door, a second landing door, a first hanger plate(30), a second hanger plate(31), a header case(40), a first latch, a second latch, first interlock bodies(107,108), and second interlock bodies(109,110). The first and second landing doors make movement in opposite directions to be opened and closed. The first hanger plate is coupled to the top of the first landing door. The second hanger plate is coupled to the top of the second landing door. |
