JPH0664877A - Control device for elevator door - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a control device for an elevator door, which can prevent a decrease in operating efficiency due to useless operation of the opening extension button. [Structure] Contact B when the open extension button is operated while the door is open
Ea closes, relay AX is energized and self-held by contact AXa ₁ . Therefore, even if the open / extend button is subsequently operated, the relay AX is still energized, so that it becomes irrelevant, and after a predetermined time, the relay 101 is forcibly energized to start the door closing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a control device for an elevator door having an opening extension button in a car.

[0002]

2. Description of the Related Art Generally, an elevator automatically opens a door when a car arrives at a destination floor, and after about 3 seconds, automatically closes the door and responds to the next call. By the way, it takes a long time to load and unload luggage into and out of a car in a passenger elevator or a bed elevator. Therefore, an opening extension button is provided in the car, and by operating this button, about 3 The door can be extended for a minute. The door opening time can be further extended by operating this button again during the door opening. The present technology is described in, for example, Japanese Patent Laid-Open No. 6100392/1987.

[0003]

In the above-mentioned prior art, a child or the like may get on the elevator for a cargo or a bed, and the child or the like may play a trick and push the open / extend button many times. As a result, the car would be stopped on that floor forever, and passengers on other floors would not be able to use it, causing a problem.

The present invention has been made in view of the above-mentioned drawbacks, and an object thereof is to provide a control device for an elevator door which can prevent a decrease in operating efficiency due to useless operation of the open / extend button. .

[0005]

The object of the present invention is to provide an extension means for extending the door closing operation of the elevator door for a predetermined time by providing an opening extension button in the elevator car and operating the button. In a control device for an elevator door equipped with, during the door opening of the elevator,
This is achieved by providing storage means for storing the operation when the open / extend button is operated and operation invalidating means for invalidating the subsequent operation of the open / extend button when the storage means outputs an output. It

[0006]

Now, when the children get on the car, play a trick and operate the open / extend button once, the open / extend operation is performed and the open / extend operation is stored. Therefore, even if the open / extend button is operated by mischief thereafter, the open / extend function is invalidated, thereby responding to a call on another floor and improving the utilization efficiency of the elevator.

[0007]

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

FIG. 2 is a front view of the operator panel in the car. In the figure, 1B to 3B are car call buttons on the first to third floors, L
U and LD are indicator lights for raising or lowering the car, BC is a close button, BO is an open button, and BE is an open extension button.

FIG. 1 is an electrical connection diagram showing an embodiment of a control device for an elevator door according to the present invention. In the figure,
BCa is a normally-open contact of the closed button BC, BOb is a normally-closed contact of the open button BO, BEa is a normally-open contact of the open extension button BE, 100 is a door-closing start relay 100a ₁ , 100a ₂ is its normally-open contact,
100b is a normally closed contact, 101 is a door closing relay, 1
01b is a normally closed contact, 102 is a door opening relay, 10
2b is its normally-closed contact, AX is a relay for storing the opening extension operation, AXa ₁ and AXa ₂ are its normally-open contacts, AXb is its normally-closed contact, and T1 is the door-opening operation after completion of the door opening in the normal state. A timer (normally set to 3 seconds) for setting the time until the start, T1a is the normally open contact, T2 is a timer for setting the open extension time when the open extension button BE is operated (normally 3 minutes T2a is a normally open contact, similarly, OLSa and OLSb are normally open contacts and normally closed contacts of a relay (not shown) that detects a door open end, and 92b is a normally open contact of a relay (not shown) that is urged when the car is decelerated. Closed contact, 10b is a normally closed contact of a relay (not shown) that is urged while the car is running, Fa
It is a contact point that detects the door open area of the basket.

Next, the operation of this embodiment will be described.

First, the normal operation of the door will be described. When the car starts decelerating, the contact 92b opens and the relay 100 is deenergized. When the car stops in the door open area, P-Fa-10
The relay 102 is energized by the circuit 0b-101b-OLSb-102-N, and the door starts to open by the door control device (not shown). When reaching the door open end, contact point OLSb
Opens and the relay 102 deactivates. Further, the contact OLSa is closed and the timer T1 starts counting. After 3 seconds, the timer T1 finishes counting and the contact T1a closes. By closing the contact T1a, the P-T1a-BO
The relay 100 is energized by the circuit of b-92b-100-N and self-held via the contact 100a ₂ . Also, the contact 100a ₁ is closed, and P-100a ₁ -102b-
The CLSb-101-N circuit energizes the relay 101, and the door control device (not shown) starts closing the door.
When the door closed end is reached, the contact CLSb opens and the relay 101
Deactivates and the car answers the next call.

Next, since it takes a long time to carry in the luggage, the door is opened, the timer T1 is counting, and the extension button B is opened.
Suppose E is operated. At this time, since the contact BEa is closed, a circuit of P-BEa-10b-AX-N is formed, the relay AX is energized and self-held via the contact AXa ₁ . Then, the contact AXb opens, the timer T1 becomes invalid, and the door does not close even after 3 seconds. Also, contact AXa
Is closed and the timer T2 starts counting. After 3 minutes, the timer T2 finishes counting, the contact T2 is closed, and the relay 100 is energized to start the closing operation of the door in the same manner as described above. When the door is closed and the car is activated in response to the next call, the contact 10b is opened and the relay AX is opened.
Deactivates and returns to its initial state.

By the way, when the child or the like mischiefs and operates the open / extend button BE while the door is open, after about 2 minutes, the open / extend button B is opened again.
Suppose E is operated. By the way, since the relay AX is held by itself when the first open / extend button BE is operated,
Even if the open / extend button BE is operated again and the contact BEa is closed, the relay AX becomes irrelevant, and after about 3 minutes, the timer T
At 2, the counting ends, and the door closing operation is forcibly started.

As described above, even if a child or the like mischief, even if the opening extension button BE is operated a plurality of times, only the first one will be effective, so after 3 minutes have elapsed, the door will be forcibly started to close. As a result, the door opening time can be shortened and the driving efficiency can be improved.

[0015]

As described above, according to the present invention,
Even if the open / extend button is operated more than once, only the first time is activated. Therefore, even if the open / extended button is operated for 3 minutes after the open / extend button is operated, the child will be forced to close the door. Since there is a start, there is an effect that the door opening time is shortened and the elevator operating efficiency is improved.

[Brief description of drawings]

FIG. 1 is an electrical connection diagram showing an embodiment of a control device for an elevator door according to the present invention.

FIG. 2 is a front view of an operation panel in a car.

[Explanation of symbols]

 100 Door start relay 101 Door close relay 102 Door open relay AX Memory relay BE Open extension button T1 Open timer T2 Open extension timer

Claims (1)

[Claims] 1. An elevator door control provided with an extension / extension button provided in an elevator car, and an extension means for extending the door closing operation for a predetermined time by operating the button. In the device, when the opening / extending button is operated while the door of the elevator is being opened, a storage means for storing the operation and a subsequent opening / closing button operation when the storage means is outputting an output. A control device for an elevator door, which is provided with means for invalidating an operation.