JPH04317985A - Door open extension device for elevator - Google Patents

Abstract

PURPOSE:To make extension of door open time not only from an open button in elevator cage but from a hall button. CONSTITUTION:The number of hall button pushings is sensed by a hall button pushing frequency sensing relay X and an aux. relay Y, and when the number attains the preset value, a door open extending device Z is actuated. Pushing of hall button is sensed by hall button actuation sensing relays HU, HD, and signal therefrom is fed to the relays X, Y.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to an elevator door opening extension device for extending the opening time of an elevator door.
In particular, the present invention relates to an elevator door opening extension device suitable for transporting luggage in an elevator.

0002

[Prior Art] Conventionally, elevators are equipped with door closing means, and after the car reaches the destination floor and the door is fully opened,
After a predetermined time, for example 3 seconds, after the door is closed, the door closing means is activated and the door closing operation is performed. However, it may take some time to load and unload luggage when using an elevator. Therefore, as a method to extend the time period during which the elevator doors are open beyond a predetermined time period, a door opening extension button is provided on the surface of the operation panel, and by operating this button, the door opening time is extended by, for example, 3 minutes. There is.

However, due to misuse of the door opening extension button or mischief, etc., the elevator is not in operation for a long time.
A problem arises in that driving efficiency is reduced and other passengers are disturbed.

[0004] On the other hand, in Japanese Utility Model Application No. 1-72570 and Japanese Patent Application No. 2-284144, a device is installed on the operating panel while the elevator is stopped and the door is fully opened, or during the door opening operation. An elevator door opening extension device is disclosed that extends a door opening time limit by operating a certain opening button.

[0005]

[Problems to be Solved by the Invention] Conventional elevator opening extension devices are operated by an opening button provided on the operating panel inside the car. It is necessary to enter and operate. Also, since it is necessary to operate the open button within 3 seconds from when the door fully opens until it begins to close, it is quite difficult to operate the open button at this timing when there are many customers. It is often difficult to operate the opening button, especially when the car is crowded with customers trying to get out of the car.

The present invention has been made in order to solve the above-mentioned problems with the elevator door opening extension device disclosed in the prior art, and its purpose is not only to operate by an opening button inside the car. To provide an elevator opening extension device capable of extending a door opening time even by operating a hall button.

[0007]

[Means for Solving the Problems] The object is to provide an elevator opening extension device equipped with an opening extension means for extending the door opening time limit by a preset time by operating an opening extension button provided in the car. This is achieved by comprising a number of times detecting means for outputting a signal when the hall button is operated a preset number of times when the door is opened, and by operating the opening extension means in response to the signal from the number of times detecting means.

[0008]

[Operation] When the elevator door starts to open after the elevator has stopped, the customer who wants to extend the door opening time can operate the hall button a preset number of times to extend the door opening time for the preset time. will be extended only. In this case, even if the car is crowded with passengers trying to get off, there is no need to enter the car, and the door opening extension device can be easily activated by operating the hall button. Furthermore, since the number of times the hall button is operated is preset, abuse can be prevented and the door opening time can be extended appropriately.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a circuit diagram showing an embodiment of the door opening extension device of the present invention, and FIG. 2 is a front view of the hall.

In FIG. 1, X is a relay for detecting the number of Hall button operations, X1 and X2 are normally open contacts of the relay X, Y is an auxiliary relay for detecting the number of Hall button operations, and Y1 and Y2 are normally open contacts of the relay Y. , Z is the door opening extension device, B is the normally open contact of the opening extension operation button provided on the in-car operation panel (not shown), and G is the normally closed relay that is energized when the door (not shown) is closed. 4a is a normally open contact that turns on when the hall button 4 shown in FIG. 2 is pressed; 5a is a normally open contact that turns on when the hall button 5 is pressed; HU is a relay that detects the operation of the hall button 4; HU1 and HU3 are the normally open contacts of the relay HU, HU2 is the normally closed contact, HD is the relay that detects the operation of the hall button 5, HD1 and HD3 are the normally open contacts of the relay, HD2 is the normally closed contact, and C is the elevator This is the normally open contact of the relay that is energized when stopped. In Fig. 2, 1 is a three-sided frame, 2 is a landing door, 3 is an indicator provided on the three-sided frame 1, 4 is a hall button provided on the indicator 3 and is a call button when ascending, and 5 is a call button when descending. be.

Next, the operation of this embodiment will be explained.

Assume that the elevator has suddenly stopped and the door is open. When the user operates hall button 4,
Contact 4a is turned on, a closed circuit is formed between DC power supply terminal P, contact 4a, relay HU and DC power supply terminal N, and Hall button operation detection relay HU is energized. At that time, contact HU1
is ON, and since the door is open, the contact G for confirming that the door is closed is ON.
is closed, and DC power terminal N - contact G - contact HU1
- A closed circuit is formed between the relay X and the DC power supply terminal N, the Hall button operation count detection relay
, relay X is self-held.

Next, when the user releases the hall button 4, the contact 4a is turned off, the relay HU is deenergized, the contact HU2 is closed, and the hall button operation number detection relay X is in the energized state, so the contact X1 is ON, and a closed circuit is formed by DC power supply terminal P, contact HU2, contact HD2, contact X2, relay Y, and DC power supply terminal N, and the Hall button operation number detection auxiliary relay Y is energized, and contact Y1 turns ON, and relay Y self-holds.

At this time, when the user operates the hall button again, the contact 4a is turned on, the hall button operation detection relay HU is energized, and the contact HU3 is turned on. Since the Hall button operation count detection auxiliary relay is energized, contact Y2 is ON, and since the elevator is currently stopped, stop confirmation contact C is ON, and DC power terminal P - contact HU3 -
A closed circuit is formed between contact Y2, contact C, opening extension device Z, and DC power supply terminal N, and door opening extension device Z is activated to extend the door opening time.

[0016] In this way, the opening time of the door can be extended by simply operating the hall button twice, so operations such as loading and unloading luggage can be carried out smoothly without being blocked by moving customers. can. When the work is completed within the extended opening time, the door can be closed immediately by operating the close button, similar to conventional door opening extension devices.

[0017]

[Effects of the Invention] According to the present invention, even if the car is crowded with passengers trying to get off, the door opening extension device can be easily activated by operating the hall button without having to enter the car. . Furthermore, since the number of times the hall button is operated is preset, abuse can be prevented and the door opening time can be extended appropriately.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing an embodiment of an elevator door opening extension device of the present invention.

FIG. 2 is a front view showing the configuration of a hole.

[Explanation of symbols]

HU, HD Hall button operation detection relay 3 Indicator 4 Hall button when ascending 5 Hall button when descending

Claims (1)

[Claims] Claim 1: In an elevator opening extension device comprising an opening extension means for extending a door opening time limit by a preset time by operating an opening extension button provided in the car, a hall button operation when the door is opened. 1. An elevator door opening extension device comprising: a number of times detecting means for outputting a signal when the number of times of opening of an elevator reaches a preset number of times, and said opening extending means is operated in response to a signal from said number of times detecting means.