To solve problems wherein detection of car swing of low frequency is difficult in a device by acceleration sensor, and time and effort are taken for the installation and adjustment and the measurement accuracy depends on the installation accuracy of the rail in a device using an instrument such as a sensor mounted to the rail.
A detecting device for detecting horizontal car swing of the elevator car comprises a projector for projecting a beam of high linearity and light condensing property and a light receiver disposed at a position opposite to the projector. The detecting device is installed perpendicularly between an elevator shaft and the elevator car, and sets a mounting position of the light receiver or the projector to the car to a position separated from the center position of the car.
Toshihide Kodama
Takenaka Ikuo
Keigo Murakami
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