SAFETY CONTROL DEVICE AND SAFETY CONTROL METHOD FOR MULTI-CAR ELEVATORS

WIPO Patent Application WO/2017/216910

A1

This safety control device is for multi-car elevators which have a plurality of cars traveling in a hoistway. Safety control is performed according to signals from a car position/speed measuring device for measuring the position and speed of each of the plurality of cars and a plurality of landing door switches for independently detecting the open states of a plurality of landing doors in the hoistway. In cases where one of the landing doors is open: if the floor on which the door is open is the lowest floor and a car is not present within an area of a pit which is accessible during maintenance, access into the pit during maintenance is detected; if the floor on which the door is open is a floor other than the lowest floor and a car is present within an area allowing access onto the car during maintenance, access onto the car during maintenance is detected; and if the floor on which the door is open corresponds to neither of these cases and a car is not present at the floor, open-door travel is detected. In each case, automatic driving of the cars is disabled, or the cars are stopped.

JP2005154107

FAILED POINT DETERMINATION ASSISTING DEVICE FOR ELEVATOR

SHIBATA MASUNORI (JP)
WASHIO KAZUNORI (JP)

PCT/JP2016/067820

December 21, 2017

June 15, 2016

Click for automatic bibliography generation  

MITSUBISHI ELECTRIC CORP (JP)

B66B5/00; B66B1/18

WO2013084279A1	2013-06-13
WO2013157070A1	2013-10-24

JP2008143614A	2008-06-26
JP2011178496A	2011-09-15
JP2001080835A	2001-03-27
JP2002538061A	2002-11-12

SOGA, Michiharu et al. (JP)

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