JPH06211457A - Lock-in releasing device in emergency stop conditoin of elevator - Google Patents

Abstract

PURPOSE:To reduce the anxiety of passengers due to locked-in condition in the cage, and enable the escape from this locked-in condition. CONSTITUTION:A locked-in releasing device is provided with an abnormality detecting means 6 to detect the abnormal parts to cause the emergency stop of an elevator, an informing means 4b to inform the abnormality detected by the abnormality detecting means 6 and inform the procedure enabling the release of the locked-in condition due to the emergency stop, and an operating member 3e which is provided in the cage and used in the emergency stop. In addition, abnormality pseudo-restoring means 5,7 are provided where the abnormal parts are restored in a pseudo-manner, a cage elevating means 8 installed in the elevator is set movable, and the cage is elevated/lowered to the target floor while the operating member is operated according to the information of the informing means 4b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for improving the safety function of an elevator, and more particularly to a device for trapping and releasing during an emergency stop of an elevator.

[0002]

2. Description of the Related Art Broadly speaking, as a method of operating a passenger elevator, there is a driver such as a department store, and the operation of the driver starts and stops a cage (car) on which a person is placed. In some cases, such as in supermarkets and high-rise office buildings, there is no driver, and passengers start and stop by operating the passengers themselves.

In this type of elevator, since a person moves up and down together with the cage, various consideration has been conventionally given to the security device. For example, even if the rope that pulls the cage is cut, the emergency fixing device operates to prevent the cage from falling, or there is a shock absorber device to prevent impact if the cage gets too low and reaches the bottom of the pit. It is provided.

[0004]

However, particularly in an elevator operated by the latter type of operation, when a failure occurs while a person is inside, that is, due to some failure, a cage is provided between floors. If the emergency stop occurs, this abnormal situation will be immediately notified to the elevator manufacturer, and the engineer of the manufacturer will be dispatched to carry out restoration work, but it takes a relatively long time to complete this restoration work. During that time, the person remained trapped in a cage. During this time, the anxiety and fear will force the passenger into a painful time.
Especially when men and women are trapped, that of women is said to be remarkable.

When investigating the cause of the above failure,
For example, the passenger's coat started to go up and down while being sandwiched between the doors, and when he arrived at the destination floor, he noticed that, and forcedly pulled out the coat, causing the gate switch to make contact failure and turned off. This is because the "emergency stop function" has been activated, or the passenger has caused an abnormal vibration in the cage, so this is detected by the speed governor and the "emergency stop function" is detected.
Has been activated, and most of them are due to passengers operating mistakes,
There are many minor failures.

[0006] Therefore, the applicant of the present application prompts the passenger to perform a specific operation when such a situation occurs, and at least to the nearest floor in the case of a failure that does not hinder the ascent and descent. Is thinking about a device that allows the gauge to be raised and lowered.

(Object of the Invention) A first object of the present invention is to reduce anxiety of passengers due to the state of being confined in a cage, and to make it possible to escape from this state of confinement by an emergency elevator stop. It is to provide a containment and release device.

A second object of the present invention is to provide a trapping / releasing device at the time of emergency stop of an elevator, which can inform an abnormal place.

[0009]

SUMMARY OF THE INVENTION The present invention provides an abnormality detecting means for detecting an abnormal portion causing an emergency stop of an elevator, an abnormality detected by the abnormality detecting means, and a confinement due to an emergency stop. Informing means for informing the procedure of enabling the state to be released in the cage, an operating member provided in the cage for use in an emergency stop, and the operating member being operated in response to the informing of the informing means. while,
Anomalous pseudo-restoring means for pseudo-restoring the anomalous portion and for raising and lowering the cage to the destination floor by enabling the driving of the cage elevating means provided in the elevator, and detecting the anomalous portion by the anomaly detecting means, In addition to notifying this abnormality, the procedure for enabling the release of the confined state due to an emergency stop is notified in the cage, and the operation member is operated in response to this notification, so that the abnormality is as if restored. The cage raising and lowering means is driven to raise and lower the cage to the destination floor.

Further, the abnormal point detected by the abnormality detecting section is provided with display means for continuing to display until a display stop instruction is issued, and the abnormal point is displayed even after the cage is lifted to the target floor by the abnormality canceling means. Is specified.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the illustrated embodiments.

FIGS. 1 to 4 are views showing an embodiment of the present invention, and FIG. 1 is a perspective view showing the inside of an elevator (inside a cage) provided with a trapping and releasing device at the time of emergency stop of the elevator.

In FIG. 1, reference numeral 1 is a cage for carrying a person, a cage operation panel 3 is provided on the front side where doors (doors) 2a and 2b are provided, and an error is seen on the back wall when viewed from the entrance / exit. A release guide panel 4 is provided. The reason for providing it on the back wall is so that an elevator manager or the like can confirm it from the gap between the doors 2a and 2b.

On the cage operation panel 3, as shown in FIG. 1B, an existing emergency call button 3a and a destination display button 3 for displaying a floor (in the example, up to floor) to stop the cage 1 are displayed.
b, a door open button 3 for instructing to open the doors 2a, 2b
c, a door close button 3d for instructing to close the doors 2a and 2b
In addition, an error release button 3e used when an emergency situation occurs (turns off) in a gate switch or the like to be described later and the cage is emergency stopped between floors is provided.

Further, the error canceling guide panel 4 is shown in FIG.
As shown in (c), the number indicating the abnormal portion is displayed, that is, the number is displayed, for example, in the case of an emergency stop due to poor contact of the gate switch, or in the case of abnormal vibration of the cage 1. An error NO indicator 4a, a voice generator 4b for giving an explanation by voice to guide self-escape from an emergency stop state, and a display canceling switch 4 for canceling the self-holding of the display of the error NO indicator 4a.
c is equipped. The error NO indicator 4a
Has a function of self-holding the number display indicating the abnormal portion, and the self-holding of the display can be released only by operating the display release switch 4c.

Error NO indicator 4 on the error cancellation guide panel 4
a and the display release switch 4c are not in the cage 1 but
It can also be installed in a management room.

FIG. 2 is a block diagram showing the construction of an essential part of an elevator equipped with a device for trapping and releasing during an emergency stop of the elevator. The same parts as those in FIG. 1 are designated by the same reference numerals. It should be noted that FIG. 2 is shown as an example for only the abnormality of the gate switch.

In FIG. 2, 5 is a CPU (central processing unit) for controlling various circuits provided in the elevator, and 6 is a gate switch abnormality (state change from ON to OFF while the cage 1 is moving up and down) described later. Gate switch abnormality detecting means for detecting and transmitting to the CPU 5, 7 is a gate switch short-circuit means controlled by the CPU 5 when the gate switch is off, 8 is a cage elevating means for normally elevating the cage 1 when the gate switch is on, 9 Is the door close button 3c
The door opening / closing means opens / closes the doors 2a and 2b in response to the operation of the door opening button 3d and the raising / lowering stop of the cage raising / lowering means 8.

FIG. 3 shows the gate switch abnormality detecting means 6 described above.
FIG. 6 is a circuit diagram showing a specific configuration example of a gate switch short-circuit means 7, and a voltage detection sensor 11 connected in parallel to a gate switch 10 as a gate switch abnormality detection means 6.
Are assumed to be short-circuit contacts 12 that short-circuit the gate switch 10 as the gate short-circuit means 7. 1
Reference numeral 3 is a drive circuit for driving the short-circuit contact 12 on.

In FIG. 3, the gate switch 10 is turned on when the doors 2a and 2b are closed, and allows the cage 1 to be raised and lowered by the cage elevating means 8. The gate switch 10 is as described above. In addition, for example, when the passenger's coat starts to move up and down while being sandwiched between the doors 2a and 2b, he notices that when he arrives at the destination floor, and when he pulls out the coat forcibly, it causes poor contact and turns off. May be.

At this time, a voltage is applied to the voltage detection sensor 11, which is the gate switch abnormality detection means 6 connected to both ends of the gate switch 10, so that this is transmitted to the CPU 5, The CPU 5 detects that the gate switch 10 is in an abnormal state and makes an emergency stop of the cage 1 via the cage elevating means 8. Then, as will be described later, while the error release button 3e is being operated, the CPU 5 forcibly turns on the short-circuit contact 12 which is the gate switch short-circuit means 7 via the drive circuit 13, and the gate switch 10 is as if The state of turning on the cage 1 is resumed and the raising and lowering of the cage 1 is restarted.

FIG. 4 is a flow chart showing the operation of the portion of the elevator equipped with the trapping and releasing device during an emergency stop of the elevator, which is related to the present invention.
Will be used to explain the operation. [Step 101] The CPU 5 determines whether or not the destination display button 3b is operated, and the operation proceeds to step 102 when the destination display button 3b is operated. [Step 102] The door 2a is opened by the door opening / closing means 9.
2b is closed, and the gate switch 10 is thereby turned on, so that the cage elevating means 8 starts elevating the cage 1 toward the designated destination floor. [Step 103] The CPU 5 determines whether or not the gate switch abnormality detection means 6 (voltage detection sensor 11) has detected an abnormality of the gate switch 10. As a result, if no abnormality is detected, the process proceeds to step 114, and if an abnormality is detected, the process proceeds to step 104. [Step 104] Since the abnormality of the gate switch 10 is detected, the CPU 5 immediately stops the raising / lowering of the cage 1 by the cage raising / lowering means 8, that is, "emergency stop".

In such a case, the passenger has an emergency call button 3
Press a. This makes it possible to talk about the current situation with the elevator manager, and the elevator manager will notify the elevator maker if necessary. In addition, the elevator manufacturer who receives this may dispatch the engineer to the site immediately and perform the recovery work by the engineer. [Step 105] Here, the abnormal portion is checked. Since only the abnormality of the gate switch 10 is taken as an example in this embodiment, the abnormality of the gate switch 10 is detected. [Step 106] Since the abnormal portion is the gate switch 10, the CPU 5 causes the error number indicator 4a to display the corresponding error number. Gate switch 1
Even when the error 0 is automatically recovered, the error NO indicator 4
The display of a is continued. This makes it possible to check for a temporary abnormality. [Step 107] Next, the CPU 5 causes the voice generator 4b to
Anomaly or abnormal location is notified by voice via. This will prevent passengers from having unnecessary anxiety. At the same time, an explanation is given by voice to encourage an attempt to escape from this state.

Here, an example of the contents of the description at this time will be described.

First, it is urged to confirm whether or not the destination floor is normally instructed, and if the display disappears, the destination floor or the nearest floor is instructed again. At this time, when the destination display button 3b cannot give an instruction to the destination floor or the nearest floor because the power is not supplied (such as fuse breakage), the same operation is urged while pressing the error release button 3e. Then, when the instruction of the destination floor or the nearest floor is normally given, the user is urged to continue pressing the error release button 3e until the automatic landing is completed. [Step 108] Here, it is determined whether or not the error release button 3e is pressed by the above description. If it is pressed, the process proceeds to step 109. Since it is expected that the explanation given in step 107 could not be understood, the process returns to step 107 described above, and the same operation is repeated until it is pressed. [Step 109] Since the error release button 3e is pressed, the CPU 5 activates the gate switch short-circuit means 7 (short-circuit contact 12) to bring the gate switch 10 into the short-circuited state. [Step 110] Since the gate switch 10 is in the short-circuited state, the cage elevating means 8 is driven, and the elevation of the cage 1 is resumed. [Step 111] It is determined whether or not the cage 1 has arrived at the destination floor, that is, the designated destination floor or the nearest floor,
If it has not arrived, the process returns to step 108, and as long as the error release button 3e is pressed, the raising and lowering of the cage 1 is continued. Then, when the arrival at the destination floor is detected, the process proceeds to step 112. [Step 112] Since the vehicle arrives at the destination floor, the CPU 5 stops driving the cage elevating means 8 and stops elevating the cage 1. [Step 113] The CPU 5 opens the doors 2a and 2b through the door opening / closing means 9. As a result, the person trapped in the cage 1 can escape from the cage 1 by himself.

When no abnormality is detected in the gate switch 10 in step 103, the process proceeds to step 114 as described above. [Step 114] Since no abnormality is detected here, the cage 1 is continuously moved up and down by the cage elevating means 8, and the process proceeds to step 115. [Step 115] Similar to step 111, it is detected whether or not the vehicle has arrived at the destination floor, and if it has not arrived, the process returns to step 114, and the raising and lowering of the cage 1 is continued. Further, when the arrival at the destination floor is detected, the operation is advanced to step 112 described above.

According to the present embodiment, when an abnormality occurs in the gate switch 10 while the cage 1 is moving up and down and a confined state occurs, the abnormality or abnormal portion is notified by voice to reduce anxiety at this time. At the same time, the operation procedure for self-escape is announced by voice, and when an error canceling operation is performed accompanying it, the gauge 1 is moved up and down to the instructed floor according to this operation. The manufacturer's engineer arrives at and the trapped state does not continue until the recovery work is completed, and it is possible to escape by himself.

Further, since the abnormal portion is continuously displayed by the error NO indicator 4a, when the elevator administrator notifies the manufacturer of the abnormal situation,
By looking at this display, the engineer can know the abnormal portion, save the trouble of searching for the abnormal portion, and can complete the recovery work in a short time.

(Modification) In this embodiment, only the case where an abnormal situation occurs in the gate switch 10 has been described.
The present invention is not limited to this. For example, when an abnormal vibration of the cage 1 is detected by the speed governor and the “emergency stop function” is activated, or when an earthquake is detected by the earthquake detection sensor, the “emergency stop function” is activated. Even when it operates, the same effect can be obtained with the same configuration as the gate switch 10 is short-circuited to allow self-escape.

In this embodiment, the operation after the abnormal situation occurs and the self-successful escape is not particularly described, but in this case, the error NO is output even if the display cancel switch 4c is not operated. It is also possible to automatically turn off the display on the display 4a to enable automatic operation thereafter. By doing so, there is an advantage that the cost for dispatching an engineer of the manufacturer can be reduced.

Also, depending on the abnormal part, even if the self-successful escape is successful, the manufacturer is notified, and the work of inspecting the abnormal part and erasing the display of the error NO indicator 4a (by the display cancel switch 4c) is prompted. By doing so, security can be further improved. Further, at this time, if the abnormal part (error number) is also reported at the same time, there is an advantage for the manufacturer that the parts required at the time of restoration work can be known in advance.

[0032]

As described above, according to the present invention,
Anomaly detection means for detecting an abnormal location that has caused an emergency stop of the elevator, and an anomaly detected by the anomaly detection means, as well as a procedure for enabling the release of the confined state due to the emergency stop in the cage And an operating member provided in the cage and used at the time of emergency stop,
While the operation member is being operated in response to the notification from the notification means, the abnormal part is artificially restored and the cage lifting means provided in the elevator is enabled to move up and down the cage to the destination floor. The abnormality detection means for detecting abnormality is detected by the abnormality detecting means, and the abnormality is notified, and at the same time, the procedure for enabling the release of the confined state due to the emergency stop is notified in the cage and responded to this notification. By operating the operation member, the abnormal portion is brought into a state as if it was restored, and the cage elevating means is driven to raise and lower the cage to the target floor.

Therefore, it is possible to alleviate the anxiety of passengers due to the confined state in the cage and to escape from the confined state by itself.

Further, there is provided display means for continuing to display the abnormal portion detected by the abnormality detecting means until a display stop instruction is issued, and the abnormal portion is displayed even after the cage has been moved up and down to the target floor by the abnormality releasing means. Is specified.

Therefore, it is possible to inform the abnormal portion even after the restoration.

[Brief description of drawings]

FIG. 1 is an elevator (cage) according to an embodiment of the present invention.
It is a perspective view which shows the inside.

FIG. 2 is a block diagram showing a configuration of an essential part of an elevator including a trapping and releasing device at the time of emergency stop of the elevator in one embodiment of the present invention.

FIG. 3 is a circuit diagram showing a specific configuration example of a gate switch abnormality detecting means and a gate switch short-circuiting means of FIG.

FIG. 4 is a flow chart showing an operation of a portion related to the present invention of an elevator including a trapping and releasing device at the time of emergency stop of the elevator in one embodiment of the present invention.

[Explanation of symbols]

3e Error release button (operation member) 4a Error NO indicator (display means) 4b Voice generator (informing means) 5 CPU (abnormality pseudo recovery means) 6 Gate switch abnormality detection means 7 Gate switch short circuit means (abnormality pseudo recovery means) 8 Cage lifting means 10 Gate switch 11 Voltage detection sensor 12 Short-circuit contact

Claims (2)

[Claims] 1. A procedure for notifying an abnormality detected by an abnormality of an elevator causing an emergency stop and an abnormality detected by the abnormality detecting means, and for releasing a confined state by the emergency stop. Means for notifying the inside of the cage, an operating member provided in the cage and used at the time of an emergency stop, and while the operating member is being operated in response to the notification of the notifying means, the abnormal point is simulated. And an abnormal pseudo-restoration means for moving the cage up and down means provided in the elevator to a driving state to raise and lower the cage to the target floor. 2. The trapping release device at the time of emergency stop of an elevator according to claim 1, further comprising display means for continuing to display the abnormal portion detected by the abnormality detecting means until a display stop instruction is issued. .