| 摘要 |
An elevator maintenance mode switching device capable of switching an elevator operation mode to a maintenance mode automatically to prevent a worker from entering a pit (2) without switching the elevator operation mode to the maintenance mode, comprising a maintenance mode selector switch (63) and a reset switch (64), wherein the maintenance mode selector switch (63) switches the elevator operation mode to the maintenance mode when detecting the entry of the worker into the pit (2) and holds that state, and the reset switch (64) has a function to reset the maintenance mode selector switch (63) and is installed in a hoistway (1) which, when a landing door (19) is closed, cannot be operated from a platform (50); a method of detecting the entry of the worker, comprising the step of, for example, detecting a weight or temperature, wherein, when the entry is detected by weight detection, a method in which the movement of a ladder (52), on which the worker rides when he enters the pit (2), caused by the weight of the worker is detected by the maintenance mode selector switch (63) is preferably used.
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