Case for replacement lock of landing door in lift, has parallelepiped case body comprising longitudinal walls, where thickness of each wall is equal to half of difference between width of replaced lock and width of replacement lock

摘要

The case (1) has a rectangular parallelepiped case body provided with a bottom part (2), two longitudinal walls (3, 4) and two transverse walls (5, 6), where thickness of each longitudinal wall is equal to half of difference between width of a replaced lock and width of a replacement lock. The longitudinal walls are formed with notches (11, 12), respectively for passing of a locking bolt of a landing door. The bottom part is formed with an elongate opening (7) for passing of a key to unlock the lock and another elongate opening (8) in vicinity of the longitudinal walls.