| 摘要 |
<p>When a long periodic vibration detector communication part (2) receives a long period vibration detection signal which gives information that occurrence of long period vibration is detected from a long period vibration detector, a cab operation control part (8) stops an elevator cab at some floor and suspends operation, and a stop floor judgment section (7) judges whether the operation suspension floor is a non-resonance floor where a hanging object hanging in an elevator vertical movement path does not resonate with the vibration of the building. When a monitoring device communication part (4) receives an emergency operation permission signal which permits emergency operation of the elevator cab from the monitoring device of a disaster prevention center while the operation of the elevator cab is suspended, the cab operation control part (8) starts the emergency operation of the elevator cab if the stop floor judgment section (7) judges the operation suspension floor to be the non-resonance floor, but the cab operation control part (8) keeps the elevator cab stopping at the operation suspension floor if the stop floor judgment section (7) does not judge so.</p> |
