エレベータの歴史と今後の課題

概要

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The history of traction drive elevators in Japan is described. The electrical technologies such as the microprocessor car control and the VVVF motor control made remarkable progress leading to higher reliability and energy savings. Then, the various machine-room-less elevators have been developed and the space saving technology, such as the shuttle and the double-deck elevators become important, too. The elevators used for evacuation in case of emergencies are also discussed.
2004-08-01