JPS6115030B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for operating an elevator in an emergency.

In a group-controlled elevator that manages a plurality of cars as a group, a hall call is commonly registered for all the cars in the group. If there is even one car that can respond to a hall call (hereinafter referred to as serviceable), the hall call can be registered, and a state in which all cars do not respond to a hall call (hereinafter referred to as non-service state). ), it will automatically become impossible to register a landing call. Here, the cars in the out-of-service state include cars that are out of order, cars that are undergoing maintenance operation, cars that are forcibly suspended, and the like.

On the other hand, modern elevators are designed to be able to operate using emergency power sources such as the building's own power generator even in the event of a power outage. In general, when emergency power is established, only the number of cars corresponding to the capacity of the car is automatically or manually returned to the specified floor, and when all the cars in one group have returned, the specified number of cars is returned to the specified floor. A continuous operation command is issued to the car, a hall call can be registered, and the car is often operated in the same way as in normal times.

However, the number of machines that can be operated depends on the economics of equipment.
There is often only one unit in a group. Therefore, if for some reason it becomes necessary to change the car that continues to operate, the operating procedure is to first forcefully stop the car that is currently in continuous operation, and then switch to another car to continue operating. The above-mentioned condition for not being able to register a hall call depends only on the status of the car that is in continuous operation, so when a car that is in continuous operation stops, it is detected that there is no longer a car in service, and the car has already been registered. The existing hall call will be cancelled, and new hall calls will no longer be registered.

The present invention is intended to improve the above-mentioned problems, and provides an emergency operation device for an elevator that can prevent confusion among passengers waiting at the hall due to inability to register a hall call when changing the car to be continuously operated. With the goal.

Hereinafter, an embodiment in which the present invention is applied to an elevator having three cars in a group will be described with reference to FIG. It should be noted that the numbers A to C appended to the end of the symbols are for machines A to C, respectively, and those without a symbol are common to all machines.

In the figure, (+) and (-) are DC power supplies; when energized, 1 disables the hall call registration circuit (not shown) and disables hall call registration; when deenergized, the hall call registration circuit is activated. 2 is a hall call forced hold switch, 3 is a hall call forced hold relay, 3a is its normally closed contact, 3b is also a normally open contact, and 4 is a hall call registration control relay that enables the hall call to be registered. Maintenance operation switch, 5 is a controlled operation relay, 5a is its normally closed contact, 6 is a power failure detection relay contact that is normally closed and opens in the event of a power outage, 7 is a power failure operation switch, 8 is an operation command relay, 8a,
8b is its normally closed contact, 9 is a door open detection relay contact that closes when the car door is fully opened, 10 is a door open indicator light that lights up to indicate "door open", and 11 is a "forced hold for landing call" when lit. This is a hall call forced hold indicator light.

Next, the operation of this embodiment will be explained.

Since the power failure detection relay contact 6 is normally closed, the operation command relay 8-A of machine A is energized and the contact 8a-A is opened. Similarly, the operation command relays 8-B and 8-C (not shown) of the B and C machines are energized, and the contacts 8a-B and 8a-C are also opened. If machine A is not undergoing maintenance operation, the maintenance operation switch 4-A is closed, so the controlled operation relay 5-A is energized and the contact 5a-A is open. Therefore, the hall call registration control relay 1 is deenergized, hall calls can be registered normally, and normal operation is performed.

Next, when a power outage occurs and DC power supplies (+) and (-) are established by the emergency power source, the power outage detection relay contact 6 opens. Therefore, the operation command relay 8-A of machine A is deenergized and the contact 8a-A is closed.
Similarly, the operation command relay contacts 8a-B and 8a-C of the B and C machines are also closed. with this,
(+)-8a-A-8a-B-8a-C-3a-1
- (-) circuit activates the hall call registration control relay 1, making registration of hall calls impossible.

When the staff member closes the power outage switch 7-A of Unit A, the operation command relay 8-A is energized and the contact 8a-A is opened, so the hall call registration control relay 1 is de-energized and the hall call registration control relay 1 is de-energized. Registration is possible.
Then, Car A serves this hall call.
However, suppose that for some reason it becomes necessary to change the operating number. When the door of Unit A opens, the door open detection relay contact 9-A closes and the door open indicator light 10 is activated.
- After confirming that A is lit, close the hall call forced hold switch 2. With this, the hall call forced holding relay 3 is energized, the contact 3a is opened, and the contact 3b is closed. Since the hall call control relay 1 is deenergized by opening the contact point 3a, the hall call is not canceled and subsequent hall calls can be registered. Further, by closing the contact point 3b, the hall call forced holding indicator light 11 lights up. After that, the staff member A.
Open the power outage operation switch 7-A of the unit. Now, the operation command relay 8-A is deenergized, and the contact 8a
-A is closed. However, since the contact point 3a is already open, no change occurs in the circuit. Next, the staff member, for example, turns on the power outage switch 7- of Unit B.
When B (not shown) is closed, the operation command relay 8-B of the B machine is energized and the contacts 8a-B are opened. Now, Car B will serve the hall calls in place of Car A.

Note that the circuit of the operation command relay 8-B of the B machine has a contact 8b-B instead of the contact 8b-B shown in FIG.
When A is a car No. C, contacts 8b-A are used instead of contacts 8b-C in FIG. Therefore, when an operation command is given to one car, it is not given to other cars, and the number of cars that are put into emergency operation is ultimately limited to one car.

In addition, during normal times, the maintenance operation switch 4-
If A to 4-C (switches (4-B and 4-C are not shown) are opened, contacts 5a-A to 5a-C
It is clear that all stations will be closed and registration of hall calls will no longer be possible.

FIG. 2 shows another embodiment of the invention.

In the figure, 3c is a normally open contact of the hall call forced holding relay 3, 12 is a timed relay that operates after a certain period of time when it is energized, and returns immediately when it is deenergized;
is its normally open contact. Other than the above, the configuration is the same as in FIG. 1.

In the case of FIG. 1, if the hall call forced holding switch 2 is closed by mistake, the hall call registration control relay 1 is deenergized, so that a hall call is registered even if there is no car to be serviced. The indicator light 11 warns of this, and FIG. 2 shows a further improvement on this.

Now, if the attendant accidentally closes the switch 2, the holding relay 3 is energized and the contact 3a opens. At the same time, the contact 3c is closed, and after a certain period of time, the time relay 12 is activated and the contact 12a is closed, making it impossible to register a hall call again. The time limit set for the time limit relay 12 is selected, for example, to the time required from opening the power outage operation switch 7-A to turning on the power outage operation switch 7-B. If 2 is not released, registration of hall calls will be automatically disabled. If the power outage operation switch 7-A is opened and the power outage operation switch 7-B is turned on within this time, there will be a car to be serviced, so it may be possible to register a hall call.

FIG. 3 also shows another embodiment of the invention.

In the figure, 5b is the normally open contact of the controlled operation relay 5;
8c is a normally open contact of the operation command relay 8, 13 is a time relay that operates immediately when it is energized and returns after a certain period of time when it is deenergized, and 13a is its normally closed contact.

During normal operation, all control operation relay contacts 5b-A, 5b-B.5b-C and operation command relay contacts 8c-A, 8c-B, 8c-C are closed, so there is no time limit. Relay 13 is energized and contact 13a is open, so hall call registration control relay 1 is deenergized and registration of hall calls is possible.

In the event of a power outage, as mentioned above, operation command relay contact 8
a-A, 8a-B, and 8a-C are all closed.
At the same time, contacts 8c-A, 8c-B, and 8c-C are opened and time relay 13 is deenergized. However, since the contact point 13a is open for a certain period of time, the hall call [ ] registration control relay 1 is deenergized. When the staff member closes the operation command switch 7-A of machine A, the operation command relay 8-A is energized and the contact 8c is activated.
-A is closed, so the time relay 13 is energized again and the contact 13a remains open. Even if the power failure operation switch 7-A of the A machine is opened to change the operating number and the operation command relay 8-A is deenergized, the time relay contact 13a remains open for a certain period of time as described above. If the staff member closes the power outage switch of the B machine within this time, the operation command relay contact 8c-B of the B machine is closed, the time relay 13 is energized again, and the contact 13a remains open. A
If the service of the unit is completed and the operating unit is not changed and the power outage operation switch 7-A is not opened to close the power outage operation switches of other units, the time relay 13 will return after a certain period of time and the contact 13a will close. As a result, hall call registration management relay 1 is energized, and registration of hall calls is disabled.

As explained above, in this invention, during emergency operation such as a power outage, when all cars are in a non-service state, the operation of the hall call registration circuit is blocked, and even if there is a car in a non-service state, the operation of the hall call registration circuit is prevented. By removing the blockage of the hall call registration circuit, the already registered hall calls are retained and new hall calls can be registered, making it impossible to register hall calls due to changing the driving car during emergency operation. It is possible to eliminate confusion among passengers waiting at the boarding point.

Further, since the blocking of the operation of the hall call registration circuit is released until a predetermined period of time has elapsed after the car becomes out of service, the hall call registration can be automatically maintained.

[Brief explanation of the drawing]

Fig. 1 is a circuit diagram showing one embodiment of an elevator emergency operation device according to the present invention, Fig. 2 is a circuit diagram showing another embodiment of the invention, and is a diagram corresponding to a portion of Fig. 1, and Fig. 3 is also a circuit diagram showing another embodiment of the invention. FIG. 1 is a circuit diagram showing another embodiment of the invention; FIG. 1... Hall call registration control relay, 2... Hall call forced holding switch, 3... Hall call forced holding relay, 5... Management operation relay, 6... Power outage detection relay, 7... Power outage operation switch, 8 ...Operation command relay. Note that the same parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1. In an emergency such as a power outage, the cars are sequentially switched and operated using an emergency power supply, and when all the cars are not responding to a hall call, the operation of the hall call registration circuit is prevented. In things,
An elevator characterized by comprising a switch that is manually operated, and a release circuit that releases the blockage of the operation of the hall call registration circuit by operating the switch, regardless of the presence or absence of a car that does not respond to the hall call. emergency operation device. 2. In a system that operates by sequentially switching over the cars using an emergency power supply in the event of an emergency such as a power outage, and preventing the operation of the hall call registration circuit when all the cars do not respond to a hall call,
A time-limited circuit that operates when a predetermined period of time has elapsed after one of the above-mentioned cars becomes unresponsive to the above-mentioned hall call; An emergency operation device for an elevator, characterized in that it is equipped with a release circuit that releases the blockage of operation.