US 9,809,419 B2
Elevator apparatus
Yasushi Otsuka, Chiyoda-ku (JP); and Takuo Kugiya, Chiyoda-ku (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Chiyoda-ku (JP)
Appl. No. 14/761,533
Filed by MITSUBISHI ELECTRIC CORPORATION, Chiyoda-ku (JP)
PCT Filed Nov. 13, 2013, PCT No. PCT/JP2013/080674
§ 371(c)(1), (2) Date Jul. 16, 2015,
PCT Pub. No. WO2014/115402, PCT Pub. Date Jul. 31, 2014.
Claims priority of application No. 2013-010302 (JP), filed on Jan. 23, 2013.
Prior Publication US 2015/0336768 A1, Nov. 26, 2015
Int. Cl. B66B 1/34 (2006.01); B66B 1/36 (2006.01)
CPC B66B 1/3492 (2013.01) [B66B 1/36 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An elevator apparatus, comprising:
a car;
movement detector that generates a signal in accordance with movement of the car;
a plurality of storage media arranged in a hoistway so as to be spaced from one another in a hoisting direction of the car;
reading device mounted to the car, that reads individual identification information stored in the plurality of storage media; and
a safety monitor that detects a moving amount and a position of the car by using the signal from the movement detector and monitoring presence or absence of abnormality in an operation state of the car,
wherein the plurality of storage media are arranged in the hoisting direction of the car at intervals different from one another,
wherein the safety monitor is configured to store the intervals of the plurality of storage media, and
wherein the safety monitor is configured to: execute an operation for detecting two of the plurality of storage media; measure an interval between the detected two of the plurality of storage media based on the signal from the movement detector; compare the measured interval between the two of the plurality of storage media with the stored intervals of the plurality of storage media; and to grasp the position of the car by using a result of the comparison and the individual identification information of the plurality of storage media, when the position of the car is unable to be grasped.