JPS6326068B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator malfunction notification device which, when an elevator becomes unable to run due to tampering, issues an alarm to a car or a landing so that the tampering can be canceled.

An elevator car may become unable to run due to some kind of malfunction. At this time, it is important to report the problem to the outside as soon as possible and hasten recovery from the failure.

For this reason, some conventional systems have been designed to automatically notify a maintenance company or the like using a telephone line when an elevator becomes inoperable. Such a conventional failure reporting device will be explained with reference to FIGS. 1 to 3.

FIG. 1 shows a control circuit, and L ₁ and L ₂ in the figure are power supply lines, respectively. Power line L ₁ has (+)
A DC voltage of (-) is applied to the power supply line _L2 . Between the power lines L ₁ and L ₂ are a normally closed contact 1 of an elevator running relay (not shown) and a normally open contact 1 of a call detection relay (not shown) that is energized when there is a car call or a hall call. A series circuit is connected between the contact 2 and a time relay 3 which is energized when the car is not running even if there is a car call or a hall call, and which is activated after a certain period of time has elapsed. In parallel to the series circuit of the normally open contact 2 and the time relay 3, a normally open contact (not shown) of a relay (not shown) is energized when the manager's room interphone 7 (Fig. 2) is responded to. ) 4 and an interphone response detection relay 5 which is energized by the normally open contact 4 and deenergized by the normally closed contact 1 is connected. A normally open contact 5a of this interphone response detection relay 5 is connected in parallel to the normally open contact 4.

In addition, between the power lines _L1 and _L2 , there are a normally open contact 3a1 of the time relay 3 and a normally closed contact 5b1 of the interphone response detection relay 5, which are energized after the time relay 3 is operated, and when a certain period of time has elapsed. A series circuit with an operating time limit relay 6 is connected.

On the other hand, FIG. 2 shows an interphone circuit controlled by the control circuit shown in FIG. 1, and in this FIG.
normally open contact 3a2 of and normally closed contact 6 of timed relay 6
b1 and a normally closed contact 5b2 of the interphone response detection relay 5 are connected in a series circuit.

Furthermore, Fig. 3 shows an automatic notification device controlled by the control circuit shown in Fig. 1 above, and 8 in the figure
is this automatic notification device, and a series circuit of a normally open contact 3a3 of the time relay 3 and a normally open contact 6a of the time relay 3 is connected between both ends thereof. This automatic notification device 8 is used to notify a maintenance company or the like via a telephone line after the time limit of the time relays 3 and 6 has elapsed after the car becomes unable to run.

Next, the operation of the conventional elevator failure reporting device configured as described above will be described with reference to the flowchart shown in FIG. If the car becomes unable to run for some reason even though a car call or a hall call is currently occurring (Step A), normally closed contact 1 of the travel relay and normally open contact 2 of the call detection relay are closed. Therefore, in Figure 1, power line L ₁ - Normally closed contact 1 - Normally open contact 2 -
A closed circuit of time relay 3-power line _L2 is formed, and time relay 3 is energized.

After a certain period of time has elapsed since the time-limited relay 3 is energized (step B), its normally open contacts 3a1 to 3a
a3 is closed. At this time, since the interphone response detection relay 5 is not energized, its normally closed contacts 5b1 and 5b2 remain closed.

Therefore, by closing the normally open contact 3a1, the power line _L1 - normally open contact 3a1 - normally closed contact 5b1
- Timed relay 6 - A closed circuit of the power line L ₂ is formed and this timed relay 6 is energized, but until the timed relay 6 is energized and a certain time period elapses,
The normally closed contact 6b1 is not opened.

As a result, by closing the normally open contact 3a2, a closed circuit of interphone 7-normally open contact 3a2-normally closed contact 6b1-normally closed contact 5b2-interphone 7 in FIG. 2 is formed, and this interphone 7 A passenger in the car calls the manager's room interphone through the car (Step C).

At this time, if the manager responds to the interphone 7 in step D, the process goes to step E, and the normally open contact 4 is closed. As a result, a closed circuit of power line L ₁ - normally closed contact 1 - normally open contact 4 - interphone response detection relay 5 - power supply line L ₂ is formed, and interphone response detection relay 5 is energized.

When the interphone response detection relay 5 is energized, its normally open contact 5a is closed, and the interphone response detection relay 5 is self-held. Also, at this time, the normally closed contacts 5b1 and 5b2 are opened, so both ends of the interphone 7 are disconnected, the calling of the interphone 7 is stopped, and the time relay 6 is also deenergized. Since the time relay 6 is deenergized, its normally open contact 6a remains open and the automatic notification device 8 does not operate.

If the manager is absent and does not respond to the interphone 7, when the time relay 3 is activated, the energized time relay 6 will be activated after a certain period of time has elapsed, and the process will proceed from step D to step F. The normally open contact 6a is closed. As a result, in FIG. 3, the automatic notification device 8-normally open contact 3a
A closed circuit of 3-normally open contact 6a-automatic notification device 8 is formed, and automatic notification device 8 is activated to report the failure to a maintenance company or the like via a telephone line (not shown) (Step G). A maintenance company or the like that receives this notification dispatches maintenance personnel to repair the elevator failure (Step H).

The conventional elevator failure notification device described above prevents children from leaving the elevator door open for long periods of time for play (mischief), even though there is a car call or a hall call. or when the elevator door is left open for a long time to make it convenient for the newspaper delivery man or milk delivery man to load and unload cargo during a move, etc.
Or, if the elevator door is left open for a long time because residents using the elevator are having a meeting at the entrance/exit of the elevator, the elevator may become inoperable even though the elevator is operating normally. This may result in the failure being detected and reported to the maintenance company, etc., resulting in unnecessary dispatch of maintenance personnel.

This invention was made in order to eliminate the above-mentioned conventional drawbacks, and prevents notifications to maintenance companies etc. due to erroneous detection of elevator inoperability.
An object of the present invention is to provide an elevator failure notification device that can prevent unnecessary dispatch of maintenance personnel from a maintenance company or the like.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the failure reporting device for an elevator according to the present invention will be described based on the drawings. FIG. 5 shows a circuit of an alarm device in one embodiment,
In the first embodiment of this invention, FIGS.
It is constructed by adding the warning device shown in FIG. 5 to the conventional elevator failure notification device constructed as shown in FIG. Therefore, Figure 1~
The description of FIG. 3 will be omitted, and the description of FIG. 5 will be focused on.

In this Figure 5, L ₁ and L ₂ are the same as the power lines L ₁ and L ₂ in Figure 1, and this power line L ₁
and _L2 are the normally open contact 3a4 of the time relay 3 shown in FIG. 1, and the normally closed contact 6b of the time relay 9 shown in FIG.
2. A series circuit of an alarm device 10 that generates an alarm is connected to the normally closed contact 5b3 of the interphone response detection relay 5 shown in FIG. 1, and to the car or the landing hall. The other parts are completely the same as in FIGS. 1 to 3.

Next, the operation of the elevator failure reporting device of the present invention constructed as described above will be described with reference to the flowchart shown in FIG. This FIG. 6 corresponds to FIG. 4. If the car becomes unable to run for some reason even though a car call or a hall call is occurring (Step A in Figure 6), the steps from Step A to Step A are performed in the same way as before. B. Proceed to step C.
The manager's room interphone 7 is called, but at this time the time relay 3 is energized and its normally open contact 3a is activated.
4 has already been closed, and the time limit relay 6 has not yet passed a certain period of time, so its normally closed contacts 6b1 and 6b2 both remain closed.
Moreover, since the manager is not responding to the interphone 7 (step D), the interphone response detection relay 5 is deenergized, and therefore its normally closed contact 5b3 is closed.

As a result, in FIG. 5, the power line L ₁ −
Normally open contact 3a4 - normally closed contact 6b2 - normally closed contact 5b
3-Alarm device 10-A closed circuit of the power supply line _L2 is formed, and an alarm is generated from the alarm device 10 installed in the car or the landing hall (Step E).

When the manager answers the interphone 7, the interphone response detection relay 5 is energized and the interphone call is stopped, and the normally closed contact 5b3 is also opened at the same time as in the conventional case, so that the alarm device 10 is alerted. The process also stops, and the process moves from step D to step F.

Furthermore, even if the manager does not respond to the interphone 7, the malfunction can be reported to a maintenance company or the like via the telephone line at step I, following steps E, G, and H in the same manner as before. .

At this time as well, the normally closed contact 6b2 is opened, so the alarm from the alarm device 10 is also stopped. In other words, even though a car call or a hall call has occurred, if the car becomes unable to run due to a malfunction in the original elevator, call the elevator 7 in the manager's room and notify them of the malfunction. or if the manager does not respond to the interphone 7 due to absence, etc.
The automatic reporting device 8 can be activated to report to a maintenance company or the like.

If the elevator door is left open for a long time due to children's play (mischief), loading and unloading of luggage during moving, convenience of newspaper delivery man or milk delivery man, residents' meeting at the elevator entrance, etc. If the elevator becomes unable to run due to this, an alarm will be issued from the alarm device 10 installed in the car or the landing hall, so that elevator users, including children's play (mischief), will be alerted. Be careful of ventilation.

Therefore, elevator users who hear the alarm from the alarm device 10 will realize their own carelessness and will not leave the elevator door open for a long time, and it can be expected that the elevator will return to normal.

Therefore, if the elevator that has returned to normal operation starts traveling toward the car call or hall call, the first
Since the normally closed contact 1 shown in the figure opens and the time relay 3 is deenergized, the time relay 6 does not operate, and the normally open contact 6a does not close, so the automatic notification device 8 does not operate.As a result, maintenance Since there is no report to the company and the normally open contact 6a does not close, the automatic notification device 8 does not operate. As a result, there is no report to the maintenance company, etc., and maintenance personnel are not dispatched unnecessarily.

FIG. 7 is a circuit diagram of a second embodiment of the present invention, which is a combination of FIGS. 2 and 3. In FIG. 7, the same parts as in FIGS. has been done. That is, this second embodiment is composed of FIG. 7, FIG. 2, and FIG. 3, and 9 in FIG. 7 indicates that the car does not run even if there is a car call or a hall call. It is a timed relay that is energized and operates after a fixed time period (shorter than the fixed time period of the timed relay 3).

This time relay 9 is connected in parallel with the time relay 3 and has a normally open contact 9a. This normally open contact 9a is connected in series with the normally closed contact 3b2 of the time relay 3 and the alarm device 10 between the power lines _L1 and _L2 .

FIG. 8 is a flowchart showing the flow of the operation of the embodiment shown in FIG.
The operation of the illustrated embodiment will be explained. Even though a car call or a hall call is currently occurring, if the car becomes unable to run for some reason (step A), in Fig. 7, the power line L ₁ - Normally closed contact 1 - Normally closed contact Open contact 2 - timed relay 9 - power line
A closed circuit _L2 is formed, the time relay 9 is energized, and when a certain period of time has elapsed (step B), its normally open contact 9a is closed.

At this time, the normally closed contact 3b2 of the time relay 3 is still closed, so the power line L ₁ - normally open contact 9
a-Normally closed contact 3b2-Alarm device 10-Power line
A closed circuit _L2 is formed, and an alarm is generated from the alarm device 10 provided in the car or the landing hall (Step C).

Since the following operations are the same as those of the conventional process, in the flowchart of FIG. 8, the same steps as those in the flowchart of FIG.

It is clear that this second embodiment also provides the same effects as the embodiments shown in FIGS. 5 and 6 described above.

Incidentally, in this second embodiment, in addition to the effects of the embodiments shown in FIGS. 5 and 6, an alarm is issued from the alarm device 10 at a relatively early stage after the elevator becomes unable to run. Therefore, unless it is a real elevator failure, you can expect the elevator to return to normal at an early stage, and as a result,
Without having to call the intercom in the manager's room,
It does not cause any trouble to the administrator.

Furthermore, although the above embodiment has been described using an alarm device, a display device may be used instead of this, and the same effect can be obtained by using an announcement device. , it does not select the type.

As described above, according to the elevator failure notification device of the present invention, when the elevator failure notification device detects that the elevator is unable to run, the notification device notifies the outside of the elevator car of the elevator failure via the telephone line. We installed an alarm device in the landing hall to generate an alarm, so it can be used for mischief by children, for loading and unloading of luggage during moving, for the convenience of newspaper delivery workers and milk delivery workers, and for residents' meetings at the elevator entrance. Intentionally by the elevator user, such as
If the elevator is not inoperable due to a real failure, such as when the elevator door is left open for a long time due to carelessness, the elevator can be returned to normal before the automatic notification device is activated. Accordingly, maintenance personnel can be prevented from needlessly dispatching.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram of a control circuit in a conventional elevator failure notification device, FIG. 2 is a circuit diagram of an interphone circuit in an elevator failure notification device of the conventional elevator and the present invention, and FIG. 3 is a circuit diagram of the conventional elevator failure notification device and the present invention. FIG. 4 is a flowchart for explaining the operation of the conventional elevator failure notification device, and FIG. 5 is a circuit diagram of the automatic notification device in the elevator failure notification device of the present invention. A circuit diagram of an alarm device in one embodiment,
FIG. 6 is a flowchart for explaining the operation of the elevator failure reporting device of the present invention, FIG. 7 is a circuit diagram of a control circuit in a second embodiment of the elevator failure reporting device of the present invention, and FIG. The figure is a flowchart for explaining the operation of the second embodiment of the failure reporting device for an elevator according to the present invention. 1...Contact of elevator travel relay, 2...Normal open contact of call detection relay, 3, 6, 9...Timed relay, 4...Normal open contact of relay energized when responding to manager's room interphone , 5...Interphone response detection relay, 7...Interphone, 8...Automatic notification device, 10...Alarm device. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] 1. Abnormality detection means for detecting that the car has become unable to run even though a car call or a landing call has occurred; means for calling the building manager's room intercom by the operation of the abnormality detection means; An automatic notification device that notifies a maintenance worker outside the building of an elevator failure via a telephone line if there is no response after a predetermined period of time; An elevator malfunction notification device, characterized in that a means for notifying or canceling the alarm of a malfunction or abnormality of the elevator is provided in the car or the landing hall by either the intercom call signal, the intercom response signal, or the elapse of the predetermined time. .