JPS6011013Y2 - Elevator door control device - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of an elevator door control device.

Conventionally, as a means of setting the optimal door opening time for passengers boarding elevators, photoelectric devices have been installed on car doors to monitor the entrance and exit of passengers.

For example, if the door is not closed while a passenger is crossing the light beam, and after the passenger passes and the light beam is re-projected, if the light beam is not crossed by the passenger even after the boarding time for the next passenger has elapsed, The door is closed and closed safely so that the door is not opened needlessly.

On the other hand, when a car arrives at an elevator landing and is about to close its door, if a passenger who arrived late presses the landing button in the same direction as the car, the door of the car will reopen and the door will close. It is common practice to reopen the door to allow passengers arriving at the car to board the car.

If a passenger crosses the light beam and the next passenger does not board after a certain period of time, the door will begin to close, but at that time, even if a passenger who arrived late operates the landing button and reverses the door. , the door begins to close immediately after it is fully opened, so passengers who arrive late cannot board the car.

Therefore, there is no point in opening the door, and passengers who cannot get into the car will also feel distrustful.

This invention solves the above-mentioned drawbacks. After the passenger crosses the light beam, when a late passenger operates the hall button, the elevator door improves the service even for the late passenger. The purpose is to provide a control device for

An embodiment of this invention will be described below with reference to figures.

In the figure, (+) and (-) are DC power supplies, 1U to 3U are the climbing platform buttons provided at the landings on the 1st to 3rd floors, respectively.
0 to 3c are car position contacts that close when the car reaches the 1st to 3rd floors, 4 is an upward direction relay contact that is closed when the car is serviced in the upward direction, and 5a and 5b are car position contacts that close when the car is serviced in the upward direction. 5c to 5e are travel relay contacts that also close, 6 is a door reopening command relay, 6a is its normally closed contact, 6b and 6c are normally open contacts, 7a and 7b are the same normally open contacts, and 7a and 7b are the normally open contacts. A light detection relay contact that closes only while the passenger is crossing the light beam, 8 is a light cut memory relay that remembers that the passenger has crossed the light beam, 8a is its normally open contact, 8b is also a normally closed contact, and 9 is an attached contact. A second door opening time setting time relay that operates immediately when it is energized and returns after a certain period of time (for example, 2 seconds) when it is de-energized; 9a is its normally closed contact; 10 is the normally-closed contact that operates immediately when it is energized. A first door opening time setting time relay that returns after a certain period of time (for example, 5 seconds) when deenergized, 10a is its normally open contact, 11 is the door open time setting relay, lla is its normally open contact, 11b is also a normally closed contact, 12 is a door control relay that closes the door when energized and opens the door when de-energized, 13 is a door close button provided in the cage, and 14 is provided on the front edge of the car door. A door safety switch 15, which opens when touched by a passenger, is a door opening button provided inside the car.

If the car is currently being serviced in the ascending direction and stops on the second floor, the traveling relay contacts 50 to 5e are opened.

At this time, the door opening time setting relay 11 is (+) 13
-10a-8b-11a-11-(-) and the contact 11b is open, so the door control relay 12 is deenergized and the door opens.

The first door opening time setting time relay 1 is activated by opening the contact 5c.
0 is deenergized after 5 seconds, the contact 10a is opened, the door opening time setting relay 11 is deenergized, and its contact 11b is closed.

As a result, unless the door safety switch 14 and door opening button 15 are operated, (+) -11b-14-15-9
Since the door control relay 12 is energized by the circuit a-12-(-), the door begins to close.

At this time, if a passenger who arrived late at the platform presses the up platform button 2U, ′, (+) 2U-2cm4-
The door reopening command relay 6 is energized by the circuit 5a-6-(-), and its contact 6b is closed, and the first door opening time setting time relay 10 is energized, and its contact 10a is closed. .

Similarly, the contact 6c is closed, the door opening time setting relay 11 is energized, and its contact 11a is closed, so (+)
It is self-maintained by the circuit 13-10a-8b-11a-11-().

When the passenger releases the hall button 2U, the door reopening command relay 6 is deenergized and its contacts 6b and 6c are opened.

When 5 seconds have elapsed, the second door opening time setting time relay 10 is deenergized, its contact 10a is opened, and the door opening time setting relay 1 is turned off.
1 is inactive, and the contact point 11b is closed, so it becomes (+) again.
-11b-14-15-9a-12-(-) energizes the door control relay 12 and starts closing the door.

However, when a passenger gets into the car, the light beam detection relay contact 7a closes when the passenger crosses the light beam.
(+) The beam cut memory relay 8 is energized by the circuit 7a-5b-8-(-), and is self-maintained by closing its contact 8a.

Similarly, the closing of the contact 7b energizes the second door opening time setting time relay 9, and the contact 9a energizes the opening waist door control relay 1.
2 is deenergized, so the door opens.

On the other hand, when the light cut memory relay contact 8b is opened, the door opening time setting relay 11 is deenergized, so the contact 11b is closed, but the second door opening time setting time relay contact 9a is open, so the door control is controlled. Relay 12 is not energized and the door remains open.

If the next passenger does not board within 2 seconds, the second door opening time setting time relay 9 will be deactivated and its contact 9a will close (
+) -11b-14-15-9a - The door control relay 12 is energized by the (-) circuit and begins to close the door.

At this time, if a passenger who arrived late at the landing presses the up-boarding button 2U, the door reopening command relay 6 is energized, the door control relay 12 is deenergized, and the door is reopened. do.

At the same time, the door reopening command relay contact 6a is opened, the light beam cut memory relay 8 is deenergized, and its contact 8b is closed, so the door opening time setting relay 11 is set to (+) -13-10a-8b.
-11a-11() for 5 seconds.

Therefore, it is possible to provide necessary boarding time for passengers who arrive late at the boarding point.

As explained above, in this design, when a passenger crosses the beam of light and then operates the landing button on that floor, the shortening of the door opening time is canceled and the door opening time is reset to the initial opening time, so there is a delay. It is possible to secure boarding time for arriving passengers so that they can use the elevator with peace of mind without missing their boarding.

[Brief explanation of the drawing]

The figure is a circuit diagram showing an embodiment of an elevator door control device according to this invention. IU~3U・・・1st to 3rd floor climbing platform buttons, I
C-3c...1st to 3rd floor car position contacts, 4...
...Rising direction relay contacts, 5a to 5e...
Travel relay contact, 6...Door open command relay, 7
a, 7b...Light detection relay contact, 8...
...Light beam cut memory relay 9...Second door opening time setting time limit relay 10...First door opening time setting time limit relay, 11...Door opening time setting Relay 12...Door control relay.

Claims (1)

[Scope of utility model registration request] A photoelectric device installed in the car and projecting a light beam onto this doorway, and a door reopening command circuit that issues a command to reopen the door when a landing button on this floor is operated while the door installed in the car doorway is closing. and a first timer for setting a first time from that point on when the landing button is returned while the door is being reopened by the door reopening command; The apparatus includes a second timer that sets a second time shorter than the first time from that time when the projection is made, and issues a door open command during the first or second time, wherein the passenger a light beam cut storage device that stores the fact that the light beam has been crossed by and detects that the landing button on the floor has been operated in this state, and when the light beam cut storage device operates, the second time period elapses. 1. A control device for an elevator door, comprising: a time setting circuit that issues the door opening command until the first time period elapses after the hall button is returned to its original state without operating.