JPH09278331A - Lock condition diagnosing device of elevator landing door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To diagnose a lock condition by providing a diagnosing means to diagnose a condition of a lock device by comparing at least either of a torque command outputted to a door opening-closing motor and a value of an electric current flowing to the door opening-closing motor and a moving distance of a landing car door with respective expected values. SOLUTION: A landing car 2 is provided with a second engaging means which can engage landing doors 31 to 3n and a landing car door 2a with each other in a condition of being moved by a prescribed dimension from stopping positions of respective story floors F1 to Fn, for example, engaging jigs 41a to 4na respectively installed on the respective landing doors and the other engaging jig 40 which is installed on the landing car door and can engage with the engaging jigs 41a to 4na. A condition of a lock device 7 is diagnosed by a diagnosing means 6 by comparing at least one of a torque command outputted to a door opening-closing motor 2b from an elevator control device 1 and a value of an electric current flowing to the door opening-closing motor 2b and a moving distance of the landing car door 2a with respective expected values.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock state diagnosing device for an elevator hall door which engages with a hook attached to the hall door to diagnose the lock state of a lock device capable of locking the hall door.

[0002]

2. Description of the Related Art An elevator hall door is provided with a lock device. This lock device normally locks the hall door so that the hall door cannot be opened from the hall side to allow the user to enter the hoistway. It prevents the fall accident to the. When the door opening / closing motor starts to open the car door by the door opening / closing motor provided on the car side, the engagement device connects the car door and the hall door, and the lock state between the lock device and the hall door is released. Then, the hall door moves with the car door and opens.

FIG. 2 is a side view for explaining the operation of the lock device provided at the nth floor hall.

At each hall, a lock device 7 is provided facing the hall door 3n, and a hook 8 is rotatably attached to the hall door 3n with a rotating portion 11 as a fulcrum. Due to the spring 9, usually a locking device 7
The door 3n is kept locked with the lock device 7 by rotating in the locking direction. When the car is landed on the landing, the engagement device (not shown) attached to the car door can be engaged with the roller 10 of the hook 8.
Then, when the car door starts the opening operation, the engagement device moves the roller 10 to the right side in FIG. 2, that is, in the car door opening direction, and the hook 8 rotates around the rotating portion 11 as a fulcrum and locks. The locked state with the device 7 is released. In addition, when in a normal lock state, the lock device 7
The horizontal gap G1 and the vertical gap G2 are properly adjusted and held between the hook 8 and the hook 8.

In the elevator as described above, the fact that the lock of the hall door with the lock device 7 is normally performed affects the safety of the user. Therefore, the work of checking the locked state is extremely important. . The lock device is inspected by two maintenance personnel on the ceiling of the car, one maintenance operator operating the car at a predetermined position, and the other maintenance personnel locked by the locking device. The lock state between the landing door and the lock device was checked by confirming that the landing door did not open by applying force to the opening direction.

However, in the above-mentioned inspection method, 2
There is a problem in that it requires a lot of labor because it requires human maintenance personnel, and that it requires a great deal of effort and time to apply force to the hall door in a dark and dusty and oily hoistway.

In order to solve such a problem, conventionally, an electromagnetic engagement device that engages with a landing door at the time of starting a door opening / closing motor and an engagement detection sensor that detects the engagement are provided. In accordance with a command, the hall door and the electromagnetic engagement device are engaged with each other, and the engagement is detected by the engagement detection sensor to detect that the hall door is locked when the hall door is opened. , Those that inspect the locked state of the locking device have been proposed. In the conventional device configured as described above, the locked state of the locking device can be inspected by a remote command without human intervention.

An example of this type is disclosed in Japanese Patent Laid-Open No. 5-229772.

[0009]

By the way, the above-mentioned conventional device uses an electromagnetic engagement device for connecting the car door and the landing door with the lock device locked.
Unlocking and locking of the locking device is such that the cylinder overcomes the spring force of the spring to move upward regardless of the engaged state, and unlocks by moving the cylinder downward. There is. That is, at the time of inspection, the car door and the landing door can be engaged by the electromagnetic engagement device while the lock device is locked while the cylinder is moved downward. Thus, the electromagnetic engagement device is devised to automate the inspection of the locking device, and is different from the engagement device conventionally used for elevators. Therefore, in order to realize automatic inspection, it is necessary to replace the existing engagement device and lock device for all floors, which may lead to cost improvement and may not be adopted. Further, since the lock device can be unlocked and locked independently of the engaged state, there is a risk that the lock device will be unlocked when it should be locked due to a cylinder abnormality or the like.

The present invention has been made in view of the actual situation in the prior art as described above, and a first object thereof is to diagnose a locked state without requiring special replacement of existing equipment and work by maintenance personnel. An object of the present invention is to provide a lock state diagnostic device for an elevator hall door.

A second object is to provide an elevator landing door door lock state diagnosing device capable of diagnosing the lock state outside without requiring special replacement of existing equipment and work by maintenance personnel. To do.

[0012]

In order to achieve this first object, the invention described in claim 1 of the present invention is to lock the landing door by engaging with a hook attached to the landing door. A lock device, a first engagement means for connecting the landing door and the car door when the car floor and each car floor coincide, and a door opening / closing motor attached to the car side,
When the car door is opened based on the door opening command output from the control device to the door opening / closing motor, the first engagement means releases the locked state of the hall door by the lock device, and the hall door is opened. In a lock state diagnosis device for an elevator hall door that opens together with the car door, a diagnosis start determination unit that outputs a diagnosis start command when a predetermined condition is satisfied, and a vehicle based on the diagnosis start command Car moving means for moving the car from the stop position of each floor by a predetermined dimension, and second engagement means capable of engaging the landing door and the car door in a state where the car has moved by the predetermined dimension. A torque command output from the control device to the door opening / closing motor, at least one of current values flowing in the door opening / closing motor, and a moving distance of the car door. Compared with the expected value are a configuration that includes a diagnosis means for diagnosing the condition of the locking device.

According to the invention described in claim 1 configured as described above, the diagnosis start determining means outputs the diagnosis start command when a predetermined condition is satisfied.
Based on this diagnosis start command, the car moving means moves the car from the stop position of each floor by a predetermined dimension. Then, the control device outputs a door opening command to the door opening / closing motor to open the car door with the predetermined size and the car moving,
The landing door and the car door are engaged by the engaging means. At this time, the diagnostic means compares the torque command output from the control device to the door opening / closing motor, the current value flowing in the door opening / closing motor, and the moving distance of the car door with respective expected values to determine the state of the lock device. Diagnose. As a result, it is possible to diagnose the locked state without requiring special replacement of the existing equipment and work by a maintenance staff.

In order to achieve the second object, the invention described in claim 2 of the present invention is a lock device for engaging a hook attached to a landing door to lock the landing door, The door opening / closing motor includes a first engaging means for connecting the landing door and the car door when the car floor and each landing floor coincide with each other, and a door opening / closing motor attached to the car side. The first engagement means releases the locked state of the hall door by the locking device when the car door is opened based on the door opening command output to the car door, and the hall door opens together with the car door. In the elevator hall door lock state diagnosing device, a diagnostic start determination means for outputting a diagnostic start command when a predetermined condition is satisfied, and a stop position of each floor of the car based on the diagnostic start command. From the control device to the car door moving means for moving the car by a predetermined dimension, second engaging means for engaging the hall door and the car door with the car moved by the predetermined dimension, Diagnostic means for diagnosing the state of the lock device by comparing the torque command output to the opening / closing motor, at least one of the current values flowing in the door opening / closing motor and the moving distance of the car door with their respective expected values; And a reporting means for reporting the diagnostic result of the diagnostic means to the outside.

According to the second aspect of the invention configured as described above, the diagnosis start determination means outputs the diagnosis start command when a predetermined condition is satisfied.
Based on this diagnosis start command, the car moving means moves the car from the stop position of each floor by a predetermined dimension. Then, the control device outputs a door opening command to the door opening / closing motor to open the car door with the predetermined size and the car moving,
The landing door and the car door are engaged by the engaging means. At this time, the diagnosing means compares the torque command output from the control device to the door opening / closing motor, at least one of the current values flowing in the door opening / closing motor, and the moving distance of the car door with respective expected values to lock the device. The condition is diagnosed, and thereafter, the diagnostic result of the diagnostic device is externally issued by the alerting device. As a result, the locked state can be diagnosed externally without requiring special replacement of the existing equipment and work by a maintenance staff.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a lock state diagnostic device for an elevator hall door according to the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a lock state diagnosing device for elevator hall doors of the present invention, FIG. 3 is an explanatory view for explaining an engagement state of a second engaging means, and FIG. 4 is a lock device. For explaining the correlation between the torque command output to the door opening / closing motor, the current value of the current flowing in the door opening / closing motor, and the moving distance of the car door when the normal condition is satisfied, and FIG. 5 illustrates the processing procedure of the diagnostic means. It is a flowchart.
Since the lock device and the like of the present embodiment are the same as those shown in FIG. 2 described above, description thereof will be omitted with reference to FIG.

Generally, an elevator is
A hoistway 20 formed along each floor hall F1 to Fn,
The elevator control device 1 provided in the machine room 21 provided in the upper part of the hoistway 20, and the pulley 22 arranged in the machine room 21.
a, 22b, a rope 23 wound around the pulleys 22a, 22b, the car 2 connected to one end of the rope 23, a counterweight 24 connected to the other end of the rope 23,
A hall door 31 that separates each hall F1 to Fn from the hoistway 20.
.About.3n, a car door 2a provided in the car 2 and capable of facing the hall doors 31 to 3n, and a door opening / closing motor 2b for opening and closing the car door 2a.

The lock state diagnosing device of the present embodiment provided in the elevator constructed as described above is shown in FIG.
As shown in FIG. 5, the diagnosis start determination means 5 that outputs a diagnosis start command in response to detection of a predetermined condition, for example, a predetermined date and time, and the car 2 based on the diagnosis start command, attaches the car 2 to each floor F1. In the state where the car moving means, for example, the elevator control device 1 and the car 2 that move the predetermined distance from the stop position of Fn to Fn, move the predetermined distance,
Second that can engage the landing doors 31 to 3n and the car cage 2a
Engaging means, for example, the engaging jigs 41a to 4na respectively attached to the hall doors, and another engaging jig 40 attached to the car door and capable of engaging with the engaging jigs 41a to 4na. And the elevator control device 1 to the door opening / closing motor 2
and a diagnostic means 6 for diagnosing the state of the lock device 7 by comparing the torque command output to b, at least one of the current values flowing in the door opening / closing motor 2b and the moving distance of the car door 2a with their respective expected values. ing.

In this embodiment, the diagnosis start determination means 5 outputs a diagnosis start command to the elevator control device 1 when it detects that the condition for diagnosis start, that is, the predetermined date and time. The elevator control device 1 first moves the car 2 by a predetermined dimension from the stop position of the lowest floor F1 based on the diagnosis start command, and then the car door 2 as shown in FIG.
The other engaging jig 40a and the engaging jig 41a of the landing door 31
Match and in the height direction.

The positional relationship in the door opening / closing direction in this state will be described with reference to FIG. That is, as shown in FIG. 3A, the car door 2a is in the closed state before the door opening / closing motor 2b is activated, and the other engaging jigs 40 and 41 are engaged.
Not engaged with a. From this state, the elevator control device 1 activates the door opening / closing motor 2b to open the car door 2a at a constant speed. As a result, FIG.
As shown in (b), another engaging jig 40 and an engaging jig 41a
And are in contact with each other and are in an engaged state. Further, by opening the car door 2a, both the car door 2a and the hall door 31 are opened and moved by the distance of the horizontal adjustment interval G1 of the lock device 7 as shown in FIG. 3 (c). In this state, the lock device 7 enters a locked state.

At these times, the correlation between the torque command output to the door opening / closing motor 2b, the current value flowing in the door opening / closing motor 2b and the moving distance of the car door 2a when the locking device 7 is normal is shown. 4 will be described.
That is, since the elevator control device 1 controls the car door 2a at a constant speed, when the other engaging jigs 40 and the engaging jigs 41a are not engaged, the elevator car 1 reaches the predetermined speed. When the door 2a accelerates, the predetermined torque command and current value obtained from the mass and speed of the car door 2a are τ1,
It becomes I1. Further, when the car door 2a is opened at a constant speed and the other engaging jigs 40 and the engaging jigs 41a are brought into an engaged state, the mass including the car door 2a and the landing door 31 is reduced. Torque becomes insufficient, and the torque operation and the current are repelled by the control operation of the elevator control device 1, and the predetermined torque instructions and the current values obtained by the mass and speed of the car door 2a and the landing door 31 are τ2 and I2. Then, when the car door 2a and the landing door 31 are locked by the lock device 7 without being further opened, the control operation of the elevator controller 1 sets the coil of the door opening / closing motor 2b to a level at which the coil does not burn out. Limiting torque command value or limiting current value, that is, τ
3, the torque command and the current jump up to around I3.

Next, the processing procedure of the diagnostic means 6 for diagnosing the locked state of the landing door will be described with reference to FIG.

First, in step S1, the current value I flowing through the door opening / closing motor 2b and the moving distance x of the car door 2a.
Is read out, and then, in step S2, it is determined whether or not the current value I after the current splashes substantially matches the expected value I1. That is, it is determined whether or not the car door 2a is opening at a constant speed. At this time, if YES is determined, the current value I flowing through the door opening / closing motor 2b and the moving distance x of the car door 2a are read in step S3, and if NO is determined, the process proceeds to step S1 to open / close the door again. The value I of the current flowing through the motor 2b for the vehicle and the moving distance x of the car door 2a are read out and repeated until the condition of step S2 is satisfied.

Next, in step S4, the current value I is the expected value I.
It is determined whether the number exceeds 1. That is, it is determined whether or not the other engaging jig 40 and the engaging jig 41a are in contact with each other to be in the engaged state. At this time, if YES is determined,
In step S5, the moving distance x of the car door 2a is stored as the engagement position x1, and if NO is determined, the process proceeds to step S3 and the current value I flowing through the door opening / closing motor 2b again,
The moving distance x of the car door 2a is read out and repeated until the condition of step S4 is satisfied.

Further, in step S6, the current value I flowing through the door opening / closing motor 2b and the moving distance x of the car door 2a.
Is read, and in step S7, it is determined whether or not the current value I after the current jumps substantially matches the expected value I2. That is, it is determined whether the car door 2a and the hall door 31 are opening at a constant speed. At this time, Y
When it is determined to be ES, the current value I flowing through the door opening / closing motor 2b and the moving distance x of the car door 2a are determined in step S8.
Is read. On the other hand, if NO in step S7, it is determined in step S9 whether the current value I substantially matches the expected value I3. In other words, it is determined whether the user is uncomfortable due to an improper mounting adjustment in the vertical direction with the hook 8 of the lock device 7, or simply does not reach the predetermined speed. At this time,
If YES is determined, in step S18, it is diagnosed and stored as a vertical attachment failure with the hook 8, and
If NO is determined, the process proceeds to step S6, the current value I flowing through the door opening / closing motor 2b and the moving distance x of the car door 2a are read again, and the process is repeated until the condition of step S7 is satisfied.

In step S10 after step S8, it is determined whether the current value I substantially matches the expected value I3. That is, it is determined whether the lock device 7 and the hook 8 are locked. At this time, if YES is determined, the moving distance x of the car door 2a is stored as the lock position x2 in step S11. On the other hand, if NO is determined, it is determined in step S12 whether the moving distance x of the car door 2a exceeds a predetermined value. That is, it is determined whether the lock device 7 and the hook 8 are unlocked or simply not reached the lock position. At this time, if YES is determined, in step S17 it is diagnosed and stored as a lock failure of the lock device 7, and if NO is determined, the process proceeds to step S8 and the current value flowing through the door opening / closing motor 2b again. I and the moving distance x of the car door 2a are read out and repeated until the condition of step S10 is satisfied.

In step S13 following step S11, a moving distance x1 indicating the engagement position and a moving distance x indicating the lock position are set.
The horizontal gap G1 is calculated from 2, and in step S14 it is determined whether the horizontal gap G1 is greater than or equal to a predetermined value. At this time, if YES is determined, the state of the lock device 7 is diagnosed and stored as normal in step S15, and if NO is determined, horizontal attachment adjustment with the hook 8 is defective in step S16. And diagnose and memorize.

The above steps S15, S16, S17, S1
When the respective diagnoses of 8 are completed, a door closing command is output to the elevator control device 1 in step S19. This prevents the user from falling into the hoistway 20 at the time of diagnosis because the hall door 31 is closed without exceeding the predetermined value even if the lock device 7 cannot be locked due to the abnormality. To do. Next, in step S20, the above-mentioned diagnosis result and the floor on which the diagnosis is performed are output together.
Then, the above diagnosis is sequentially performed up to the uppermost floor Fn.

Since this embodiment is constructed as described above,
It is possible to diagnose the locked state without requiring special replacement of existing equipment and work by maintenance personnel. Further, since the date and time of diagnosis can be set, the diagnosis can be adjusted to a time zone when there are no users, and therefore convenience of users can be improved.

Incidentally, in the processing procedure shown in FIG.
Although only the current value I flowing through the door opening / closing motor 2b is described for simplification of the drawing, the same diagnosis can be performed using the torque command τ, as is clear from the correlation shown in FIG. Further, in the above-described embodiment, the second engaging means is composed of another engaging jig 40 attached to the car door 2a and engaging jigs 41a to 4na attached to the landing door 3n. However, the present invention is not limited to this,
The second engagement means may be provided only on the car door 2a.
In this case, the mechanism may be such that it does not engage with the hall door 3n during normal operation, but protrudes during diagnosis and can engage with the hall door 3n. For example, it may be projected by an electromagnetic mechanism or may be projected by utilizing the opening operation of the car door 2a.
Even if the second engaging means is configured in this way, it is obvious that the same effect as that of the present embodiment can be obtained.

FIG. 6 is a block diagram showing another embodiment of the lock state diagnosing device for elevator hall doors of the present invention.

The lock state diagnosing device of another embodiment shown in FIG. 6 includes a reporting means 4 for reporting the diagnostic result of the diagnosing means 6 to the outside, for example, a monitoring center (not shown). Further, the diagnosis start determination means 5 outputs a diagnosis start command to the control device 1 in response to at least one of receiving an output command from the outside, for example, a monitoring center (not shown) and detecting a predetermined date and time. ing. Since the other configurations are the same as those shown in FIG.

In the lock state diagnosing device of another embodiment, the diagnosis start determining means 5 issues a diagnosis start command in response to at least one of receiving an output command from the monitoring center and detecting a predetermined date and time. Output to the control device 1 to start diagnosis. When the diagnosis is completed, the diagnosis result is reported to the monitoring center via the reporting means 4.

Since the other embodiments are configured as described above, the locked state can be diagnosed externally without requiring special replacement of existing equipment and work by a maintenance person. Since the date and time of diagnosis can be commanded from the outside or can be set, the diagnosis can be adjusted to a time zone when there are no users, and therefore convenience of users can be improved.

[0036]

Since the invention according to claim 1 of the present invention is configured as described above, it is possible to diagnose the locked state without requiring special replacement of existing equipment and work by maintenance personnel. As a result, it can be adopted at a relatively low cost, and the labor and time involved in artificial work can be eliminated.

Since the invention according to claim 2 of the present invention is configured as described above, the locked state is diagnosed externally without requiring special replacement of the existing equipment and work by the maintenance personnel. Therefore, in addition to the above-mentioned effects, it is possible to improve efficiency.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a lock state diagnosis device for an elevator hall door of the present invention.

FIG. 2 is a side view showing a lock device provided in an elevator hall door.

FIG. 3 is an explanatory diagram illustrating an engagement state of second engagement means.

FIG. 4 is an explanatory diagram illustrating a correlation between a torque command output to a door opening / closing motor, a current value flowing in the door opening / closing motor, and a moving distance of a car door when the lock device is normal.

FIG. 5 is a flowchart illustrating a processing procedure of a diagnostic means.

FIG. 6 is a block diagram showing another embodiment of the lock state diagnostic device for an elevator hall door of the present invention.

[Explanation of symbols]

 1 Elevator control device 2 Car 2a Car door 31-3n Landing door 4 Warning means 5 Diagnosis start determination means 6 Diagnostic means 7 Lock device 8 Hook 40 Other engaging jigs (second engaging means) 41a to 4na engaging jig (second engaging means)

Claims (9)

[Claims] 1. A locking device for engaging a hook attached to a landing door to lock the landing door, and connecting the landing door and the car door when the landing car floor and each landing floor coincide with each other. When the car door is opened based on the door opening command output from the control device to the door opening / closing motor,
In the elevator hall door lock state diagnosis device in which the first engagement means releases the lock state of the hall door by the lock device, and the hall door opens together with the car door, a predetermined predetermined Diagnosis start determination means for outputting a diagnosis start command when conditions are satisfied, car moving means for moving the car by a predetermined dimension from the stop position of each floor based on the diagnosis start command, and the car is the predetermined car Second engagement means capable of engaging the hall door and the car door in a dimensionally moved state, a torque command output from the control device to the door opening / closing motor, and a current value flowing in the door opening / closing motor And a diagnostic means for diagnosing the state of the lock device by comparing the moving distance of the car door with respective expected values. Elevator hall door lock status diagnostic device. 2. A locking device for engaging a hook attached to a landing door to lock the landing door, and connecting the landing door and the car door when the car floor and each landing floor coincide with each other. When the car door is opened based on the door opening command output from the control device to the door opening / closing motor,
In the elevator hall door lock state diagnosis device in which the first engagement means releases the lock state of the hall door by the lock device, and the hall door opens together with the car door, a predetermined predetermined Diagnosis start determination means for outputting a diagnosis start command when conditions are satisfied, car moving means for moving the car by a predetermined dimension from the stop position of each floor based on the diagnosis start command, and the car is the predetermined car Second engagement means capable of engaging the hall door and the car door in a dimensionally moved state, a torque command output from the control device to the door opening / closing motor, and a current value flowing in the door opening / closing motor And a diagnostic means for diagnosing the state of the lock device by comparing the moving distance of at least one of the above and the traveling distance of the car door with respective expected values, An elevator landing door lock state diagnosing device, comprising: a means for issuing a result to the outside. 3. The second engaging means is an engaging jig attached to each hall door, and another engaging jig attached to the car door and capable of engaging with the engaging jig. The lock state diagnostic device for an elevator hall door according to claim 1 or 2, comprising: 4. The lock for an elevator hall door according to claim 1, wherein the second engaging means is an engaging jig attached to the car door and capable of engaging with the hall door. Condition diagnostic device. 5. The diagnostic means includes at least one diagnostic result of a lock device normality, a horizontal misalignment with a hook, a vertical misalignment with a hook, and a lock device lock defect, and a hall corresponding to the diagnostic result. The lock state diagnostic device for an elevator hall door according to claim 1 or 2, wherein 6. The lock state diagnosing device for an elevator hall door according to claim 1, wherein the diagnosing means outputs a door closing command to the control device in response to a result of the diagnosis being obtained. 7. The lock state diagnosis device for an elevator hall door according to claim 1, wherein the diagnosis start determination means outputs a diagnosis start command to the control device in response to detection of a predetermined date and time. . 8. The diagnostic start determination means outputs a diagnostic start command to the control device in response to at least one of reception of an output command from the outside and detection of a predetermined date and time. 2. The lock state diagnosis device for an elevator hall door according to 2. 9. The lock state diagnosis device for an elevator hall door according to claim 1, wherein the control device operates the door opening / closing motor at a predetermined speed in response to a diagnosis start command.