JPS6241015Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a device for registering elevator hall calls.

There is a landing button at the elevator landing, and when you operate it, a landing call is registered.
It is well known that an elevator car can be called to that floor.

However, when a power outage occurs, all previously registered hall calls are canceled, so after the power is restored, waiting passengers must operate the hall button again to re-register their hall calls.

This invention improves the above-mentioned problem by using a hall call registration relay that holds the hall call regardless of the power supply, and by continuing the above-mentioned retention when the time from power loss to power recovery is short. To provide an elevator hall call registration device which eliminates the need for re-operating a hall button after power is restored and allows the operation to be performed properly.

An embodiment in which this invention is applied to up-calls from the first to sixth floors will be described below with reference to the drawings.

In the figure, (+) and (-) are DC power supplies, 1A to 5A are up buttons for registering up calls provided at the landings on the 1st to 5th floors, respectively, and 1B to 5B operate when activated. The first floor that holds it mechanically
For the up call registration relays on the 5th floor, 1Ba to 5Ba are normally open contacts, 1C to 5C are release coils that release the holding of up call registration relays 1B to 5B when energized, and 1D to 5D are the terminals for each car. The car position contacts 1E to 5E, which close when the car is on the 5th floor, are built into the up buttons 1A to 5A, respectively, and when lit, the up call registration light indicates that an up call for the 1st to 5th floors has been registered. , 7 is an upstream relay contact that closes when the car operates in the upstream direction, 7 is a stop decision relay contact that closes when the car determines to stop, 9
is a timed relay that operates after a predetermined time (for example, 0.5 seconds) when it is energized and returns immediately when it is deenergized.
9a is a normally open contact, 10 is a time relay that operates immediately when energized and returns after a predetermined time (for example, 30 seconds) when deenergized, and 10a to 10e are normally closed contacts.

Next, the operation of this embodiment will be explained.

Now, assuming that the DC power supplies (+) and (-) are normal, the time relay 9 is operating, the contact 9a is closed, and the time relay 10 is also operating, making the contacts 10a to 1
All 0e are open.

Here, when the 4th floor up button 4A is pressed,
Upstream call registration relay 4B is energized and mechanically held. Then, contact 4Ba is closed,
The up call registration light 4E on the 4th floor lights up. with this,
The up call for the fourth floor is registered, and the car is called to the fourth floor by a circuit not shown. If the car runs up, the up direction relay contact 7 is closed, and if it approaches the fourth floor and decides to stop, the stop decision relay contact 8 and the car position contact 4D are closed. with this,
A circuit of (+)-4C-4D-7-8-(-) is formed, the release coil 4C is energized, the holding of the up call registration relay 4B on the 4th floor is released, and the contact 4Ba
is released, and the up call registration light 4E is turned off. With this, the up call for the 4th floor is canceled. The above is normal operation.

Next, when the up call for the 4th floor is registered,
Suppose that there is a power outage at power supplies (+) and (-). However, the up call registration relay 4B is mechanically held, and the contact 4Ba remains closed. However, the up call registration light 4E is turned off.

On the other hand, with the power outage of power supplies (+) and (-), the time relay 9 is restored, the contact 9a is opened, and the time relay 1
0 starts counting the time limit. When the power is restored within 30 seconds of the power outage, timed relay 9 operates 0.5 seconds later to close contact 9a, timed relay 10 is energized again, and contacts 10a to 10e remain open. Therefore, the call registration light 4E lights up without being canceled due to a power outage, and the trouble of pressing the up button 4A after the power outage is restored is saved.

If the power is not restored even after 30 seconds have passed,
The time relay 10 returns and the contacts 10a to 10e close. Afterwards, when the power is restored, (+)-4
A circuit C-10d-(-) is formed, the release coil 4C is closed, the call registration relay 4B is released from holding, and the contact 4Ba is opened.

Therefore, the call registration light 4E does not light up. That is, when the power outage is long, it is expected that the passengers waiting at the hall will leave the hall, so that unnecessary calls to the hall remain and cars are not driven unnecessarily.

Note that this can be implemented in the same way for down calls.

In the embodiment, mechanical holding relays are used as uplink call registration relays 1B to 5B, but relays held using permanent magnets, nonvolatile memories that can be read and written at all times, etc. may also be used.

Furthermore, if the timed relays 9 and 10 are not used and the registered hall calls are held regardless of the elapsed time after the power outage, some wasteful operation may occur. It is quite useful and the circuit becomes simple.

As explained above, in this invention, a hall call registration relay is provided that maintains the registration of hall calls regardless of the power supply, and if the time from power loss to power recovery is within a predetermined time, the hall call registration relay is installed. By continuing to hold the relay and releasing the hold if it exceeds a predetermined time, it is possible to save the trouble of re-operating the hall button after the power is restored, and it also eliminates the need to leave unnecessary hall calls. This eliminates the need to drive a car.

[Brief explanation of the drawing]

The figure is a circuit diagram showing an embodiment of an elevator hall call registration device according to this invention. (+), (-)...DC power supply, 1A to 5A...1
Up button for floors to 5th floor, 1B to 5B... Same left upward call registration relay, 1C to 5C... Same left release coil, 10... Timed return type timed relay.

Claims (1)

[Scope of utility model registration request] A hall button that requests a hall call; a hall call registration relay that is connected to a power source and registers the hall call when the hall button is operated and holds this regardless of the power supply; a predetermined time after the power supply is lost; A timer device that detects when the time has elapsed, and if the time from the loss of the power source until the power is restored is within the predetermined time period, the boarding call registration relay continues to be held, and if the time period exceeds the predetermined time period; An elevator hall call registration device comprising a circuit for releasing the holding of the hall call registration relay.