JPS59114284A - Controller for man conveyor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] This invention provides a control device for a passenger conveyor that is provided with a plurality of means for detecting the presence or absence of a passenger, and when any of the means does not detect a passenger, the operation is performed regardless of a timer. Regarding.

If the detection area of a detector for detecting passengers on an automated escalator is narrow and one detector cannot cover the entire width of the escalator passage, it is necessary to use two detectors. In this case, even if one of the detectors fails, the problem is not noticeable and the detection area remains narrow.

This invention was made in order to eliminate the above-mentioned drawbacks of the conventional technology, and has a plurality of detection means, and when one of the detection means does not detect a passenger, the vehicle is operated regardless of the timer time. It is an object of the present invention to provide a control device for a passenger conveyor that allows the use of the upper passenger conveyor to be trouble-free.

The following is a front view showing the arrangement of the control device of the passenger conveyor of the present invention, and FIG. 2 is a side view of FIG. 1.

In both FIG. 1 and FIG. 2, lO is a man conveyor. 2 directly above the entrance of this escalator 10
Two detectors A and B are arranged, and these detectors A and H detect passengers going up and down the passenger conveyor 10.

When detecting this passenger, detectors A and B are
As is clear from FIG. 3, in the width direction of the passenger conveyor 10, the detection area a of the detector A and the detection area of the detector B are mostly It's supposed to be. In addition, arrow 11 in this figure 3
means the upward direction of the passenger conveyor 10.

On the other hand, FIG. 4 is a circuit diagram of an embodiment of a control device for a passenger conveyor according to the present invention, and the circuit is configured to operate based on the detection outputs of the detectors A and B. In FIG. 4, Ll and L2 are power supply lines, respectively.

Between this power line L1 and 52, there are normally open contacts Aa and Ba.
A series circuit with timer 1 and a true series circuit with timer 1 are connected. Normally open contacts Aa and Ba are contacts that are closed when detectors A and B detect a passenger, respectively.

Further, the timer 1 is energized by the closing of either the normally open contact Aa or Ba to control the operating time of the escalator 10, and the timer 1 has a normally open contact 1a. .

This normally open contact 1a forms a true series circuit together with the operation command relay 2. This true series circuit has power supply lines L1 and 5.
It is connected between the two.

This operation command relay 2 has a normally open contact 2a and a normally closed contact 2b, and the normally open contact 2a and the normally open contact 3a of the check relay 3 form a true series circuit. This true series circuit is connected in parallel with the normally open contact 1a of timer l.

Furthermore, a true series circuit of the normally closed contact Ab of the detector A, the normally closed contact 2b of the operation command relay 2, and the check relay 3 is connected between the power supply lines L1 and 52.

A normally closed contact Bb of the detector B is connected in parallel to the normally closed contact Ab. Further, a normally open contact 3b of the check relay 3 is connected in parallel to the normally closed contact 2b.

Next, the operation of the passenger conveyor control device of the present invention configured as described above will be explained.

Now, if both detectors A and B are normal, when a passenger passes near the center of the entrance of the passenger conveyor 10, both detectors A and B detect the passenger, as is clear from FIG. Detect and output.

As a result, both normally open contacts Aa and Ba are closed, and normally closed contacts Ab and Bb are opened. The timer 1 is energized by closing the normally open contacts Aa and Ba.

By energizing this timer 1, its normally open contact 1
a is closed. Closing of the normally open contact 1a energizes the stray electricity command relay 2. When the operation command relay 2 is energized, the passenger conveyor 10 starts operating.

Furthermore, when the operation command relay 2 is energized, its normally open contacts 2a are closed, but the normally closed contacts Ab and Bb of the detectors A and B of the check relay 3 are open. ,
This check relay 3 remains deenergized. Therefore, the normally open contact 3a is in an open state, and the operation command relay 2 is energized only by closing the normally open contact 1a of the timer 1.
Even if the normally open contact 2a of the operation command relay 2 is closed, it is not self-held.

When a predetermined period of time has elapsed since the timer 1 was energized, the time limit is reached and the normally open contact 1a of the timer 1 is opened. This normally open contact 1a is opened and the operation command relay 2 is deenergized. As a result, the operation of the escalator 10 is stopped.

Next, suppose that one of the detectors A and B is out of order. In this case, even if a passenger comes to the entrance of the passenger conveyor IO and the passenger comes to the detection area of the detector B, if the detector B does not output an output, its normally open contact Ba will not be closed.

However, as is clear from Figure 3, both detectors A and B
Unless the detection areas a and b almost overlap and the passenger is in close contact with the railing of the passenger conveyor 10,
Passengers are detected by detector A. Therefore, even if detector B fails and its normally open contact Ba is not closed, detector A
When the vehicle detects a passenger, its normally open contact Aa is closed.

As a result, the shift timer 1 is energized, and the operation command relay 2 is energized in the same manner as described above, so that the passenger conveyor 10 starts operating.

However, since detector B does not operate, its normally closed contact Bb remains closed at this time.

Therefore, the check relay 3 is connected to the power line Bb-3b-
Check relay 3 - Self-maintaining with a closed circuit of power line L2.

Next, the passenger conveyor 10 starts operating, and the passenger
If it passes under, the output of detector A will disappear.
The normally open contact Aa is opened, then the timer 1 is deenergized, and after a predetermined period of time has elapsed, the normally open contact 1a is opened and the connection between the operation command relay 2 and the power supply line L1 is about to be disconnected.

However, as mentioned above, since the check relay 3 is self-held and its normally open contact 3a is closed, when the operation command relay 2 is energized, its normally open contact 2& is closed. Therefore, even if the normally open contact 1a of the timer 1 is opened, the operation command relay 2 is closed due to the closed circuit of the power line L1, the normally open contact 3a, the normally open contact 2a, the operation command relay 2, and the power line L2. self-retaining.

Therefore, even if the normally open contact 1a of the timer 1 is opened, the operation command relay 2 continues to issue operation commands, notifying the abnormality of the detector B, and also informing the escalator 10 of passengers passing through areas that cannot be detected by the detector A. driving service.

Furthermore, even if the detectors A and B are normal, if the vehicle passes through the part indicated by the arrow 11 in FIG. When a passenger comes passing through an area that can be detected by both detectors A and
B detects it, so its normally closed contacts Ab, Bb
will be opened together. Therefore, the check relay 3 is deenergized and its normally open contact 3a is opened. When the time limit of the timer 1 comes, the normally open contact 1a is opened, the operation command relay 2 is deenergized, the operation of the escalator 10 is stopped, and then the normal automatic operation is resumed. Return to

Note that FIG. 5 is a circuit diagram showing only the parts that are different from FIG. 4 of another embodiment of the present invention, and the circuit of FIG. 5 is newly added to the circuit of FIG. 4. , which constitutes a control device for a passenger conveyor according to the present invention.

In FIG. 5, a normally open contact 3c of check relay 3, normally open contact 2c of operation command relay 2, and a true series circuit of relay 4 are connected between power lines L1 and L2.

A normally open contact 4a of a relay 4 is connected in parallel to this normally open contact 2c. Further, this relay 4 also has a normally open contact 4b, and this normally open contact 4b constitutes a true series circuit together with the signal light 6.

This true series circuit is connected between power supply lines L1 and L2.

With this configuration, as explained in the embodiment of FIG. 4 above, when the check relay 3 is energized, its normally open contact 3c is also closed, and the check relay 3 is also energized. Since the operation command relay 2 is also energized when the vehicle is running, its normally open contact 2c is also closed.

As a result, a closed circuit of power line L1 - normally open contact 3 cm, normally open contact 2a - IJ relay 4 = power line L2 is formed, and relay 4 is energized. By energizing the relay 4, both its normally open contacts 4a and 4b are closed.

Upon closing of the normally open contact 4b, the 1:p IJ relay is self-maintained. Further, the signal light 6 is turned on by closing the normally open contact 4b. The lighting of the signal lamp 6 indicates that the detector B is abnormal, as described in FIG. That is, by turning on the signal light 6 and displaying an abnormality display on a monitoring panel (not shown), the manager can be notified of the failure of the detector B at an early stage.

As described above, according to the passenger conveyor control device of the present invention, a plurality of passenger detection means are provided, and when one of the passenger detection means does not detect a passenger, and when the detection means detects a passenger, the detection is held for a certain period of time. Since the system is configured to operate regardless of the time limit of the timer, even if any of the detection means fails, the passenger conveyor can be operated and service to passengers can be provided, and it is possible to know that there is a failure in the detection means. It has the advantage of being able to

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the control device for a passenger conveyor of the present invention, Fig. 2 is a side view of Fig. 1, and Fig. 3 is the relationship between the detector and the detection area in the control device for the passenger conveyor. FIG. 4 is a circuit diagram of one embodiment of the control device for a passenger conveyor according to the above, and FIG. 5 shows only the parts different from FIG. It is a circuit diagram shown in detail. 1...Timer, 2...Operation command relay, 3...Check relay, 4...Relay, 6...Signal light, 10
...Man conveyor, A, B...detector. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Makoto Kuzuno (and 1 other person) 1 '8 Illustration 4 Showa Year Month 1 11゛1□'11) Mr. Secretary], iG r'1 no table small 'lf'1rXll? :
57-221181 No. 2.3 and Akira's name Man conveyor control device 3 Relationship with each case to be corrected 〒i'! ! 'l-Out 19 (In/out 9
Tokoro Takuyu ;! Various Dodai [() Ward 9-1'
[-12th 3rd name (601):, Ryodenki (
Pull type company representative table piece 1.1. +Jinhachibe 4 agent fI Tokoro Heavy Industries [Miyakochiyo 1-1.1 Ward Marunouchi 2-chome IJz 3g-:, Ryodenki Co., Ltd. 5, subject of amendment (11 full specification 6, contents of amendment CI+ Please amend the attached document. 7. Attached documents (1) Full text amendment details 1 copy Details
Document 1, Name of the invention, Control device for passenger conveyor 2, Claims (1) A plurality of detection means for detecting the presence of a passenger attempting to get on the passenger conveyor, at least one of the detection means detecting a passenger. a timer that is energized and maintains the operating state for a certain period of time when the detection means detects the presence of a passenger; A control device for a passenger conveyor, comprising a check relay that energizes the operation command relay regardless of the holding time of a low timer of the detection means. (2) A patent claim characterized in that when all of the plurality of detection means detect a passenger during driving regardless of the holding time of the timer, a driving command is issued again from the driving command relay only for the holding time of the timer. A control device for a passenger conveyor according to item 1. 3. Detailed Description of the Invention The present invention relates to a control device for a passenger conveyor which is operated by providing a plurality of means for detecting the presence or absence of passengers. If the detection area of a detector for detecting passengers on an autonomous escalator is narrow and one detector cannot cover the entire width of the escalator passage, two detectors must be used. In this case, even if one of the detectors fails, the problem is not noticeable and the detection area remains narrow. This invention was made in order to eliminate the above-mentioned drawbacks of the conventional technology, and has a plurality of detection means, and when one of the detection means does not detect a passenger, the vehicle is operated regardless of the timer time. It is an object of the present invention to provide a control device for a passenger conveyor that allows the use of the upper passenger conveyor to be trouble-free. Embodiments of a control device for a passenger conveyor according to the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing the arrangement of detectors applied to one embodiment, and FIG. 2 is a side view of FIG. 1. In both FIG. 1 and FIG. 2, 10 is an escalator. Two detectors HA + B are placed directly above the entrance of this escalator/θ, and these detectors A and B
Accordingly, a customer attempting to ride the escalator 10 is detected. When detecting this passenger, the entire width direction of the entrance of the escalator 10 is detected by detection t'fA and 8, and as is clear from FIG.
In the width direction, the detection area a of the detector and the detection area of the detector B are mostly of the same shape. In addition,
The arrow // in FIG. 3 means the direction of approach of the escalator IQ. On the other hand, FIG. 4 is a circuit diagram of an embodiment of a control device for a passenger conveyor according to the present invention, and includes the above-mentioned detector A. The circuit is configured to be activated by the detection output of B. In FIG. 4, LIIL2 is a power supply line. Between these power lines L1 and L2 are normally open contacts Aa and Ba.
A parallel circuit with the timer and a series circuit with the timer are connected. Normally open contacts Aa+Ba are contacts that are closed when the detectors A and B respectively detect a passenger. Further, the timer / is energized by the closing of either the normally open contact Aat or Ba to control the operating time of the escalator 10, and the multi-timer / is energized by the closing of either the normally open contact Aat or Ba.
have. This normally open contact /a forms a series circuit with the operation command relay. This series circuit is connected between power lines L1 and L2. This operation command relay 2 has a normally open contact core a and a normally closed contact 2b, and the interlocking contact core a forms a series circuit with the normally open contact 3a of the check relay 3. This series circuit is connected in parallel with the normally open contact /a of the timer /. Furthermore, a series circuit of the normally closed contact Ab of the detector A, the normally closed contact of the operation command relay, and the check relay 3 is connected between the power lines L1 and L2. A normally closed contact Bb, which has been detected for 4 days, is connected in parallel to the normally closed contact Ab. Further, a normally open contact 3b of the check relay 3 is connected in parallel to the normally closed contact 2b. Next, the operation of the microconveyor control device of the present invention configured as described above will be explained. Now both detectors A
, B are both normal, when a passenger passes near the center of the entrance of the escalator 10, as is clear from FIG. 3, both detectors A. Both B detect passengers and output. As a result, both of the normally open contacts Aa+Ba are closed, and the normally closed contacts Ab and Bb are opened. Closing of normally open contacts Aa+Ba energizes timer l. By energizing this timer/, its normally open contact/
a is closed. Closing of the normally open contact /a energizes the operation command relay. When this operation command relay is energized, the escalator 10 starts operating. Also, when the operation command relay is energized, its normally open contact 2a is closed, but since the normally closed contacts Ab and Bb of the detectors A and B of the check relay 3 are open, this Three check relays remain de-energized. Therefore, the normally open contact 3a is in the open state, and the operation command relay is energized only by the closing of the normally open contact /a of the timer /, even when the normally open contact 2a of the operation command relay is closed. Not self-maintained. When a predetermined period of time has elapsed since the timer / was energized, the time limit is reached and the normally open contact /a of the timer / is opened. This normally open contact /a is opened and the operation command relay = is deenergized. As a result, the operation of the escalator 10 is stopped. Next, suppose that one of the detectors A and B is out of order. In this case, even if a passenger comes to the entrance of the escalator 10 and the passenger comes to the detection area of detector B, detector B
When there is no output, the normally open contact Ba is not closed. However, as is clear from Figure 3, both detectors A and B
Detection areas a and b almost overlap, and unless the passenger is close to the end of the approach road to the escalator/θ, the passenger is used side by side by detector A. Therefore, even if detector B fails and its normally open contact Ba is not closed,
When detector A detects a passenger, its normally open contact A
a is closed. As a result, the timer / is energized, the operation command relay is energized in the same manner as above, and the escalator /θ starts operating. However, since the detection iB does not operate, its normally closed contact Bb remains closed at this time. Therefore, the check relay 3 is on the power line 1 - normally closed contact Bb - normally open contact 3b
- Check relay 3 - Self-maintaining with closed circuit of power line L2. Next, when the escalator 10 starts operating and the passenger passes under the detector, the output of the detection 5A disappears.
The normally open contact Aa is opened, then the timer I is deenergized, and after a predetermined period of time has elapsed, the normally open contact /a is opened and the operation command relay and the power line L are about to be disconnected. However, as mentioned above, since the check relay 3 is self-held and its normally open contact 3a is closed, when the operation command relay is energized, its normally open contact core a is closed. Therefore, even if the normally open contact /a of the timer / is opened, this operation command relay = self-retaining. Therefore, even if the normally open contact /a of the timer / is opened, the operation command relay continues to issue operation commands, notifying the abnormality of detector B, and also informing the escalator IO of passengers passing through areas that cannot be detected by the detection 48. driving service. In addition, even if detectors A and B are normal, if the area shown by the arrow l/ in Fig. 3 is passed, the operation command relay continues to be held as described above, but both detectors A and B When a passenger comes passing through an area that can be detected by both, detector A,
Since B detects this, both its normally closed contacts Ab and Bb open. Therefore, check relay 3 is deenergized,
Its normally open contact 3a is opened. When the timer /a expires, its normally open contact /a is opened, the operation command relay is deenergized, and the operation of the escalator IO is stopped.
゛After half a second, the car returns to normal automatic operation. Note that FIG. 5 is a circuit diagram showing only the parts that are different from FIG. 4 of another embodiment of the present invention, and the circuit of FIG. 5 is newly added to the circuit of FIG. This constitutes a control device for a passenger conveyor according to the present invention. In FIG. 5, a series circuit of normally open contact 3C of check relay 3, normally open contact 2c of operation command relay 2, and relay t is connected between power lines L1 and L2. A normally open contact DA of a relay reader is connected in parallel to this normally open contact Jc. This relay reader also has a normally open contact tlb, and this normally open contact Ilb provides a signal light and forms a series circuit. This series circuit is the power line L1
It is connected between the two. With this configuration, as explained in the embodiment of FIG. 4 above, when the check relay 3 is energized, its normally open contact 3C is also closed, and the check relay 3 is also energized. Since the operation command relay is also energized when the engine is running, its normally open contact C is also closed. As a result, a closed circuit of power line 1 - normally open contact 3C - normally open contact u C - IJ radar power line L2 is formed, and the relay radar is energized. By energizing the relay relay, its normally open contacts DA and LB are both closed. The relay is self-retained by closing the normally open contact +b. Furthermore, the signal light 6 is turned on by closing the normally open contact lIb. The lighting of this signal lamp B indicates that the detector B is abnormal, as described in FIG. That is, by turning on the signal light 6, an abnormality display is displayed on a monitoring panel (not shown), so that the administrator can be notified of the failure of the detector B at an early stage. As described above, according to the passenger conveyor control device of the present invention, a plurality of passenger detection means are provided, and when the force (force) does not detect a passenger, and when the detection means detects a passenger, it is held for a certain period of time. Since the system is configured to operate regardless of the time limit of the timer, even if one of the detection means fails, the passenger conveyor can be operated and service to passengers can be provided, and it is also possible to know that there is a failure in the detection means. It has the advantage of being able to 4. Brief description of the drawings FIG. 1 is a front view showing an embodiment of the control device for a passenger conveyor according to the present invention, FIG. 2 is a side view of FIG. 1, and FIG. A diagram showing the relationship between a detector and a detection area, FIG. 4 is a circuit diagram of one embodiment of the control device for the passenger conveyor according to the above, and FIG. 5 is a fourth diagram of another embodiment of the control device for the passenger conveyor of the present invention. It is a circuit diagram which extracts and shows only the different part. l...Timer, ;...Operation command relay, 3...Check relay, Da...Relay, 6...Signal light, 10
-... Escalator, A, B... Detector. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent number 4: Tsukuda (and 1 other person) Iwamasuo

Claims (1)

[Claims] (A plurality of detection means for detecting the presence of a passenger on the 11-person conveyor; a timer that is energized and maintains an operating state for a certain period of time when any of the detection means detects a passenger and outputs an output; , when the presence of a passenger is detected by the detection means, "the holding time of the timer; a drive command relay that issues a drive command to the passenger conveyor; when any of the plurality of detection means detects a passenger; A control device for a passenger conveyor comprising a check relay that energizes the operation command relay regardless of the retention time of the timer. A control device for a passenger conveyor according to claim 1, characterized in that when the timer is detected, the operation command is issued again from the operation command relay only for the holding time of the timer.