JP2010018372A - Door control device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door control device of an elevator capable of performing a door control with high efficiency, while securing safety of passengers when required. <P>SOLUTION: This door control device controls doors 2 and 4 for openably/closably covering an entrance in the elevator having a first sensor for detecting the presence or absence of passengers in a car 1, a second sensor 7 for detecting the presence or absence of passengers on a landing 3 side and a third sensor 8 for detecting the presence or absence of passengers at the entrance. Each of the first sensor, the second sensor 7 and the third sensor 8 detects the absence of passengers, and closes the doors 2 and 4 at prescribed speed faster than normal door closing speed according to the registration of landing calls at the other floors. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator door control device that controls the opening and closing operation of a door to improve the operation efficiency of the elevator.

  In general elevators, when the car arrives at the target floor, the door opens and the user gets on and off. At that time, at least the number of users getting on and off the door is open. Are the same. Further, when a car call is registered due to mischief or mistake, the door is opened for a preset time even when there is no user. Therefore, even if a user on another floor registers a hall call, the response to this call is not made quickly, and the user waits for a long time.

  For this reason, conventionally, when a state in which no obstacle is detected by the non-contact type obstacle detection device has continued for a predetermined time, the door that has been fully opened is allowed to perform the door closing operation even before the set door opening time has elapsed. When the non-contact type obstacle detection device detects an obstacle during the closing operation, the door is inverted by a predetermined distance from the obstacle detection position, and after stopping the door at the inverted position for a predetermined time, If the non-contact type obstacle detection device detects an obstacle again during the door closing operation again, it is increased by a predetermined amount from the predetermined distance at the previous reversal. There has been proposed a device in which the door is reversed again by a distance so as to improve the driving efficiency while ensuring the safety of the user (see, for example, Patent Document 1).

There is also a load detector that detects the presence or absence of passengers in the passenger car, and the door opening / closing speed is increased by a signal indicating no passenger in the load detector to improve driving efficiency. (For example, refer to Patent Document 2).
Japanese Patent No. 3260069 (paragraph numbers 0018 to 0025, FIG. 3) JP-A-10-194642 (paragraph numbers 0023 to 0028, FIG. 1)

  However, in the former case, the door is closed before the set door opening time elapses so that the operation efficiency is improved, but the door closing speed is not considered. Reducing the waiting time after the landing call registered on the other floor leads to an improvement in the serviceability of the elevator, so it is desirable to shorten this time as much as possible while ensuring the safety of the user. There was room.

  In the latter case, when the load detector detects that there are no passengers in the car, the door opening / closing speed is increased to improve the driving efficiency. Is located at the entrance and exits from the car to the landing side, and if there is weight on the landing side, load detection may not be performed, and users who try to get into the car from the landing side are detected It is impossible to increase the door opening and closing speed in such a state where there are passengers or users (hereinafter, users who are on the landing side and use the elevator are also called passengers for convenience). It was not preferable for safety.

  The present invention has been made from the above-described prior art, and an object thereof is to provide an elevator door control device capable of performing highly efficient door control while ensuring the safety of passengers when necessary. .

  In order to achieve the object, the invention according to claim 1 of the present invention includes a first sensor that detects the presence or absence of a passenger in a car, a second sensor that detects the presence or absence of a passenger on the landing side, An elevator having a third sensor for detecting the presence or absence of passengers at the doorway, wherein the first sensor, the second sensor, and the elevator door control device for controlling a door that covers the doorway so as to be openable and closable Each of the third sensors detects the absence of passengers, and closes the door at a predetermined speed higher than a normal door closing speed in response to registration of a hall call on another floor.

  In the invention according to claim 1 of the present invention configured as described above, the normal door closing speed only when there are no passengers in the car, at the landing side, and at the entrance / exit, and when the hall call is registered on another floor Close the door at a faster predetermined speed. As a result, only when necessary, that is, when a hall call is registered on another floor, highly efficient door control is performed while ensuring safety, and the waiting time after a hall call registered on the other floor is reduced. be able to.

  In the invention according to claim 2 of the present invention, when the contact-type door safety means is operated during the door closing operation at a speed higher than usual, or when the first sensor, the second sensor, and the When at least one of the third sensors detects a passenger or when a hall call is registered at the car stop floor, the door is reversed with a deceleration that minimizes the reverse braking distance.

  In the invention according to claim 2 of the present invention configured as described above, when the contact-type door safety means is operated during the door closing operation at a speed higher than usual, or at least in the car, at the landing side, and at the entrance / exit. When one passenger is detected or when a hall call is registered at the car stop floor, the door is reversed at a deceleration that minimizes the reverse braking distance, thereby ensuring the safety of the passenger.

  According to the present invention, passenger safety is ensured by increasing the door closing speed only when there are no passengers in the car, at the landing side, and at the entrance / exit and when a landing call is registered on another floor. However, the waiting time after the hall call registered on the other floor can be reduced, and the serviceability of the elevator can be improved.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an elevator door control device according to the present invention will be described with reference to the drawings.

  1 is a perspective view showing an embodiment of an elevator door control device according to the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a flowchart showing a processing procedure of the door control device.

  As shown in FIGS. 1 and 2, the elevator includes a car 1 that moves up and down a hoistway formed in a building, a car door 2 that covers the entrance of the car 1 so as to be openable and closable, and an entrance on the landing 3 side. A landing door 4 that can be opened and closed and that can face the car door 2, a landing button 5 that is installed in the landing 3 and registers a landing call, and a first that detects the presence or absence of passengers in the passenger car 1 by load detection, for example. For example, the second sensor 7 installed at the upper part of the entrance / exit of the car 1 and detecting the presence or absence of passengers on the hall 3 side by irradiating infrared rays, and the car door 2 and the hall door 4 respectively. And a third sensor 8 for detecting the presence / absence of passengers at the entrance and exit, and a detection signal when the car door 2 is in contact with an obstacle such as a passenger's body. Contact-type door safety means 9 that outputs It is provided. A is the detection range of the first sensor 6, B is the detection range of the second sensor 7, and C is the detection range of the third sensor 8.

  In the present embodiment, the first sensor 6, the second sensor 7, and the third sensor 8 each detect the absence of passengers, and in response to the landing call being registered on the other floor, The doors 2 and 4 are closed at a predetermined speed higher than the closing speed.

  Here, details of the door control of the present invention will be described based on the flowchart of FIG.

  When the car 1 arrives at the destination floor as shown in step S1, the door control device outputs a door opening command, and the doors 2 and 4 are opened as step S2. After the doors 2 and 4 are opened, as shown in steps S3 to S6, when at least one of the first sensor 6, the second sensor 7 and the third sensor 8 detects a passenger, When the landing button 5 is operated, the door control device continues to open the doors 2 and 4. On the other hand, while the first sensor 6, the second sensor 7, and the third sensor 8 all detect the absence of passengers in the steps S3 to S6 described above, and there is no hall call by the hall button 5 on the stop floor, As shown in step S7, when a hall button on another floor (not shown) is operated and a hall call is registered, in step S10, the door control device outputs a high-speed door closing command, and the doors 2 and 4 are moved to a normal door closing speed. The door is closed at a predetermined speed faster than that. Thereafter, during the high-speed door closing operation, as shown in steps S11 to S15, when the contact-type door safety means 9 is operated, or the first sensor 6, the second sensor 7, and the third sensor 8 are operated. When at least one of the passengers is detected or the landing stop button 5 on the car stop floor is operated, the door control device reverses the doors 2 and 4 with a deceleration that minimizes the reverse braking distance as step S17. As shown in S2, the doors 2 and 4 are opened. On the other hand, the first sensor 6, the second sensor 7 and the third sensor 8 all detect the absence of passengers in the steps S3 to S6 described above, and there is no landing call by the stop button 5 on the stop floor, and When there is no hall call by a hall button on the other floor not shown in step S7, the door control device outputs a normal door closing command as step S8, and when it is detected in step S9 that the doors 2 and 4 are completely closed, Terminate the process. Further, in steps S11 to S15 described above, the contact-type door safety means 9 does not operate, the first sensor 6, the second sensor 7, and the third sensor 8 detect the absence of a passenger, and the car is stopped. When there is no hall call by the hall button 5 on the floor, in step S16, it is detected that the doors 2 and 4 that are closed at a predetermined speed higher than the normal door closing speed are completely closed, and a series of processing is ended. .

  According to the present embodiment, by increasing the door closing speed only when there is no passenger in the car 1, at the hall 3 side, and at the entrance / exit and when a hall call is registered on the other floor, While ensuring safety, the waiting time after the hall call registered on the other floor can be reduced, and the serviceability of the elevator can be improved.

1 is a perspective view showing an embodiment of an elevator door control device according to the present invention. It is a top view of FIG. It is a flowchart which shows the process sequence of a door control apparatus.

Explanation of symbols

1 car 2 car door 3 landing 4 landing door 5 landing button 6 first sensor (sensor for detecting passengers in the car)
7 Second sensor (sensor for passenger detection on the landing side)
8 Third sensor (entrance / passenger detection sensor)
9 Contact type door safety means A A detection range of the first sensor B detection range of the second sensor C detection range of the third sensor

Claims (2)

An elevator having a first sensor for detecting the presence or absence of a passenger in a passenger car, a second sensor for detecting the presence or absence of a passenger on a landing side, and a third sensor for detecting the presence or absence of a passenger at an entrance / exit. In an elevator door control device that controls a door that covers the doorway in an openable and closable manner,
The first sensor, the second sensor, and the third sensor respectively detect the absence of passengers, and in response to the landing call being registered on the other floor, a predetermined speed that is higher than the normal door closing speed. A door control device for an elevator, wherein the door is closed at a speed.   When a contact-type door safety means is activated during a door closing operation at a speed higher than normal, or when at least one of the first sensor, the second sensor, and the third sensor detects a passenger The elevator door control device according to claim 1, wherein when the hall call is registered at the car stop floor, the door is reversed at a deceleration that minimizes the reverse braking distance.

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