| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a door device of elevators which, while inhibiting prolonging of opening/closing time of a door even if slipping occurs between a pulley and a belt, is capable of opening/closing the door smoothly. <P>SOLUTION: The door device of elevator includes doors 12a and 12b, a door motor 30, first to third pulleys 14 to 16, first and second endless belts 17 and 18 wound almost around the first to the third pulleys 14 to 16, a pulse generator 31 outputting rotating angle information of the door motor 30, and a control device 34 in which, when the doors 12a and 12b are moved from one side to the other of a fully open position and fully close position, actual rotating angle of the door motor 30 is calculated, and if the actual rotating angle is larger than a reference rotating angle, in the next phase when the doors 12a and 12b are moved from one side to the other of the fully open position and fully close position the rotation of the door motor 30 is controlled so as to shift the rotating angle of the door motor 30 decelerating the doors 12a and 12b to only difference between the actual rotating angle and the reference rotating angle from ever before. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
