JPS6326373Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of an elevator operation control device.

Normally, elevators are operated based on car calls while responding to hall calls in the same direction as the direction of operation, and when there are no car calls or hall calls ahead, the elevator automatically reverses the direction of operation and sequentially responds to calls in that direction. Answer the question and repeat the operation to return to the standard floor.

In the case of such conventional elevators, when a large number of passengers get into the car at once on a standard floor, for example, and each person presses the car call button for the floor they want to go to, the elevator car is called in sequence. The calls are answered, but if one of the passengers forgets to press the car call button, when there are no more car calls, the elevator car will respond to the hall call in the opposite direction and press the call button. There was a risk that the passenger who forgot to push the button would be carried to a completely different floor against his or her wishes.

The present invention was developed in view of the above points, and is designed to operate an elevator in which even if a passenger forgets to press the car call button, there is no fear that the passenger will be unexpectedly transported to a completely different floor due to another hall call. The purpose is to provide a control device.

The figure is an elevator operation control circuit diagram showing one embodiment of the present invention, and for simplicity, there are four service floors.
The case of a floor is shown as an example. In the figure, E+ and E- are power supply voltages, and RY1a is a car call registration relay (not shown) that is energized when a car call on the first floor is registered.
Its normally open contact, RY1b is its normally closed contact, RY2a
is the normally open contact of the car call registration relay on the second floor,
RY2b is the normally closed contact, RY3a is the normally open contact of the car call registration relay on the 3rd floor, RY3b is the normally closed contact, RY4a is the normally open contact of the car call registration relay on the 4th floor, and RY4b is the normally closed contact. contact,
RY11a is a normally open contact of a hall call registration relay (not shown) that is energized when a 1st floor hall call is registered, and RY12a is a rising direction hall contact that is energized when a 2nd floor ascending hall call is registered. The normally open contact of the call registration relay (not shown), RY22a is a descending hall call registration relay (not shown) that is energized when a descending hall call for the second floor is registered.
The normally open contact, RY13a, is the normally open contact of the ascending hall call registration relay (not shown), which is energized when the third floor ascending hall call is registered.
a is a normally open contact of a descending hall call registration relay (not shown) that is energized when a 3rd floor descending hall call is registered, and RY24a is a landing contact that is energized when a 4th floor hall call is registered. Normally open contact of call registration relay (not shown), RY31b, RY31
c is the car position contact of the floor selector that opens when the car reaches the 1st floor, RY32b and RY32c are the car position contacts of the floor selector that also open when the car reaches the 2nd floor, and RY33b and RY33c are the same. The car position contacts of the floor selector open when the car reaches the 3rd floor.RY34b and RY34c are the car position contacts of the floor selector that also open when the car reaches the 4th floor.RY40 registers all car calls. a car call detection relay that is energized when the relay is deenergized;
RY40a is the normally open contact of the car call detection relay RY40, RY50 is the prohibition relay that is energized when there is no car call even though there are passengers in the car, RY50b is the normally closed contact of the prohibition relay RY50, and TRY is the normally closed contact of the prohibition relay RY50. The operation delay relay, TRYa, is the normally open contact of the operation delay relay TRY, and RY60 is the upward direction relay that operates the car in the upward direction when energized.
RY60b is its normally closed contact, RY70 is a downward direction relay that drives the car in the downward direction when energized, RY70b is its normally closed contact, and LS is a load detection device, for example, that detects the presence of passengers in the car. This is the output contact of the passenger detection device and closes when there is a passenger in the car. BZ is a buzzer installed on the car operation panel, etc.

The operation of the device of the present invention will be explained below.

Now, the car stops on the first floor (therefore contact RY3
1b and RY31c are open), and if a car call on the third floor is registered, the closed circuit "E+-RY3a-RY33c-RY34b-
RY34c-RY70b-RY60-E-", the upward direction relay RY60 is energized, and the car starts upward operation. Next, when the basket arrives on the third floor,
Since car position contacts RY33b and RY33c are open, upstream relay RY60 is deenergized, while 3
Since the floor car call registration relay is de-energized, the contact
A closed circuit “E+-RY1b-” is created by closing RY3b.
RY2b-RY3b-RY4b-RY40-E-”
Relay RY40 is energized through. At this time, if one of the passengers forgets to press the car call button on the 4th floor, this passenger will remain in the car even if the other passengers get off on the 3rd floor.
The contact LS of the load detection device, etc. remains in the closed state, and the closed circuit “E+-RY40a-LS-RY50TRY-E
-'', the inhibition relay RY50 is energized, and a voltage is applied to the operation delay relay TRY. When prohibition relay RY50 is energized, its contact RY50
By opening b, upstream relay RY60 and downstream relay RY70 can be made unaffected by the hall call registration relay (for example, contact RY11
a, RY12a, RY22a, RY13a, RY2
Even if relays 3a and RY24a are closed, relays RY60 and RY70 are not energized), so the car does not start moving in response to a hall call.

By the way, if a passenger in the car does not press the car call button even after a predetermined period of time has elapsed after the prohibition relay RY50 is activated, the operation delay relay TRY is activated and the contact TRYa is closed, causing a signal to be sent to the car operation panel, etc. The installed buzzer BZ sounds and instructs passengers to operate the car registration button. The passenger who heard this buzzer BZ notices that he forgot to press the car registration button and presses the button, that is, the car registration button on the 4th floor, and the closed circuit "E+-RY4a-RY34c-RY7
0b-RY60-E-" upstream relay
When RY60 is energized and the car starts upward operation, contact RY4b is opened to de-energize car call detection relay RY40, contact RY40a is opened to de-energize prohibition relay RY50 and operation delay relay TRY, The buzzer BZ stops ringing by opening the contact TRYa of the operation delay relay TRY.
By closing the contact RY50b of the prohibition relay RY50, it is possible to answer a hall call.

Here, the reason why the buzzer sounds after a predetermined time after the prohibition relay RY50 is activated is as follows.
Normally, relay RY50 is activated when an elevator passenger enters or exits the car (in normal cases, there is no car call at all until the elevator passenger enters the car and registers a car call). This is to distinguish it from forgetting to press the car call button, since there are times when a passenger is present.

As described above, according to the present invention, if a situation occurs where there are no car calls and there are passengers in the car, operation of the car due to hall calls is prohibited, and if this situation continues for a predetermined period of time or more, Since passengers are informed that they have forgotten to press the car call button, it is possible to eliminate the negative effects caused by forgetting to press the car call button.

In addition, in the explanation of the above embodiment, the buzzer
Although the method of notifying passengers that they forgot to press the car call button has been described, this method is not limited to the embodiments and may be a method using a display device.

[Brief explanation of drawings]

The figure is an elevator operation control circuit diagram showing an embodiment of the present invention. RY1a to RY4a... Normally open contacts of the car call registration relay, RY1b to RY4b... Normally closed contacts of the car call registration relay, RY11a to RY13a and
RY22a to RY24a... Normally open contact of hall call registration relay, RY40... Car call detection relay,
RY50...Prohibition relay, TRY...Operation delay relay, RY60...Upward direction relay, RY70...
Downward direction relay, LS...Passenger detection device contact,
BZ...Buzzer.

Claims (1)

[Scope of Claim for Utility Model Registration] In the device that determines the traveling direction of the elevator according to the car calls and hall call registration status of the elevator, a passenger detection device that detects the presence of passengers in the elevator car and all car calls are provided. a car call detection device that detects that the car call detection device is not registered; and a prohibition device that prohibits determining the direction of travel of the elevator based on the hall call registration while the passenger detection device and the car call detection device are both operating. and a notification device that notifies passengers in the car that they have forgotten to press a car call button when both the passenger detection device and the car call detection device operate for a predetermined time or longer. Device.