JP2002003116A - Control device of elevator door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems that it takes long in a controlling work, and users cannot use an elevator during this time. SOLUTION: This control device comprises an engagement dimension measurement and operation control circuit 26 which measures the movement of a car door until the car door is engaged with a landing door with the totally-closed position of the car door as a starting point when an elevator door comprising the car door and the landing door is opened, compares the difference between the engagement dimension reference value and the measured movement of the car door with a predetermined value of judgment to judge the presence/ absence of abnormality in the engagement dimension, and a memory 27 which stores the result of the measurement by the engagement dimension measurement and operation control circuit and the result of the presence/absence of any abnormality by the floor. The time required for the controlling time can be considerably shortened, the convenience of the users can be improved by shortening the working time, and the measurement accuracy can be considerably improved by changing the work from the visual measurement to the automatic measurement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator door control device for measuring an engagement dimension between an elevator car door and a landing door.

[0002]

2. Description of the Related Art An elevator door is required to be opened and closed in conjunction with a landing door and a car door at the floor where the car has arrived. Accordingly, the landing door and the car door are provided with door opening / closing engagement mechanisms that operate in conjunction with each other, and it is necessary to always maintain mechanical engagement dimensions of these mechanisms at appropriate values.

However, conventionally, the work of measuring the engaging portion between the sash door and the landing door needs to be performed for each floor from the top of the car, and the time required for the work requires the user to use the elevator. Can not do.

Further, in the measurement operation, since the dimensions cannot be measured by directly applying a measure or the like, the dimensions are measured by visual observation, and the measurement accuracy is low.

A conventional elevator door control device will be described with reference to the drawings. FIG. 4 is a diagram showing the front of a car door mechanism controlled by a conventional elevator door control device. FIG. 5 is a plan view showing an engagement relationship between a car door and a landing door controlled by a conventional elevator door control device. FIG. 6 is a front view of a landing door mechanism controlled by a conventional elevator door control device.

4 to 6, reference numeral 1 denotes an elevator door, 1a denotes a car door of the elevator door 1, 1b
Is a landing door.

In FIG. 1, reference numeral 2 denotes a safety shoe interposed between the contact portions of the left and right elevator doors 1, 3a denotes a car door threshold located at the lower end of the car door 1a, and 3b denotes a lower end of the landing door 1b. , 4a is a car door hanger case located above the car door 1a, 4b
Is a landing door hanger case located above the landing door 1b,
Reference numeral 5a denotes a car door rail provided on the car door hanger case 4a, and reference numeral 5b denotes a hall door rail provided on the hall door hanger case 4b.

In the same figure, 6 is a link mechanism for opening and closing the car door 1a, 7 is a landing door drive vane provided at the tip of the link mechanism 6, and 8 is a door motor which is a drive source for opening and closing the elevator door 1. , 9 and 10 are deceleration pulleys for decelerating the door motor 8, 11 is a belt for transmitting the driving force of the door motor 8 to the deceleration pulley 9, and 12 is a chain for transmitting the driving force of the deceleration pulley 9 to the deceleration pulley 10. Each component from the door motor 8 to the chain 12 constitutes a door opening / closing device.

Further, in FIG. 1, reference numeral 14a denotes a car door hanger, 14b denotes a landing door hanger, and the car door 1a and the landing door 1b are respectively connected to the car door rail 5a via the hangers 14a, 14b. And, it is suspended from the landing door rail 5b so as to be horizontally movable. Reference numeral 15 denotes a movable roller disposed on the landing door 1b, 1
6 is a fixed roller which is also disposed on the landing door 1b, 1
Reference numeral 7 denotes an interlock mechanism for connecting and locking the left and right landing doors 1b, and reference numeral 18 denotes a lock switch for detecting locking.

Next, the operation of the conventional elevator door control device will be described with reference to the drawings.

The elevator door 1 having such a configuration is driven by engaging the car door 1a with the landing door 1b. This will be described with respect to the door opening operation of the elevator door 1. The landing door 1b drives the movable roller 15 of the landing door 1b by the landing driving vane 7 by the door opening operation of the car door 1a, and the interlock mechanism 17 operates. Then, the lock switch contact 18 is released and the door is unlocked, and the landing door drive vane 7 is opened to grasp the movable roller 15 and the fixed roller 16 of the landing door 1b, and the car door 1a is driven by the door opening operation.

As described above, the elevator door 1 having the above-described structure is used.
The car door 1a and the landing door 1b integrally perform the opening and closing operation by configuring the movable roller 15, the fixed roller 16, and the landing door driving vane 7 to appropriately engage in accordance with the opening and closing operation.

As described above, the conventional control device for the elevator door 1 is configured to use the movement of the car door 1a to grasp the landing door 1 on each floor. When the car door 1a is opened to some extent, the landing door 1b is completely grasped. When the door is closed, the landing door 1b closes earlier than the car door 1a.

[0014]

In the conventional elevator door control device as described above, the car door 1a is required to accurately engage with the landing door 1b on each floor and to release the engagement reliably. It is necessary to appropriately maintain the engagement dimension relationship between the car door 1a and the landing door 1b for each floor, and for this purpose, it is necessary to accurately measure the engagement dimension between the car door 1a and the landing door 1b. is there.

However, conventionally, the work of measuring the engaging portion between the car door 1a and the landing door 1b has to be performed for each floor from the top of the car, so that it takes a great amount of time. There was a problem that it could not be used.

Further, in the measuring operation, it is not possible to directly measure a dimension with a measure or the like, so that the dimension measurement has to rely on visual observation, and there is a problem that the measurement accuracy is low.

From these, when the elevator door is fully closed, there is a floor where the door stop noise is loud, or the car door 1
There has been a problem that a malfunction such as a sudden stop of the elevator due to the collision of the engaging portion a occurs.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to automatically and accurately measure an engagement dimension between a car door and a landing door for each floor, and to obtain a measurement result for each floor. By adding a separate memory,
It is an object of the present invention to provide an elevator door control device capable of accurately determining whether an engagement dimension is appropriate in a short time.

As a result, it is possible to prevent a sudden stop failure of the elevator due to a defective engagement dimension between the car door 1a and the landing door 1b, realize a smooth door opening / closing operation, and further reduce the time required for the engagement dimension measurement work. The convenience of passengers can be improved.

[0020]

According to a first aspect of the present invention, there is provided a control apparatus for an elevator door, wherein when the elevator door constituted by a car door and a landing door is opened, the car door starts from a fully closed position. The movement amount of the car door until the car door and the landing door are engaged is measured, and the deviation between the engagement dimension reference value and the measured movement amount of the car door is compared with a predetermined determination value to engage. An engagement dimension measurement operation control circuit for determining the presence or absence of a dimension abnormality, and a memory for storing the measurement result and the abnormality presence / absence determination result by the engagement dimension measurement operation control circuit for each floor.

According to a second aspect of the present invention, in the elevator door control device, the engagement dimension measurement operation control circuit controls the door control circuit to control the door door opening control to a constant low torque based on a measurement command from the maintenance device. And switching to a constant low speed, and during the door opening control operation, the engagement point between the car door and the landing door is changed by a change in the speed of the door motor generated when the car door is engaged with the landing door. It is to detect.

According to a third aspect of the present invention, there is provided the elevator door control device, wherein the engagement dimension measuring operation control circuit controls the door door opening control for the door control circuit at a constant low speed based on a measurement command from the maintenance device. Control, and detecting an engagement point between the car door and the landing door by a change in torque of a door motor generated when the car door is engaged with the landing door during the door opening control operation. It is.

According to a fourth aspect of the present invention, in the elevator door control device, the door opening operation is stopped immediately after the engagement dimension measuring operation control circuit detects the engagement point between the car door and the landing door. The operation command for switching to the door closing operation is output to the elevator control panel.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 An elevator door control device according to Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an elevator door control device according to Embodiment 1 of the present invention. In the drawings, the same reference numerals indicate the same or corresponding parts.

In FIG. 1, reference numeral 21 denotes an elevator control panel, 22 denotes a maintenance device connected to the elevator control panel 21, and 23 denotes a rotation amount of the motor 24 and a door movement amount which are attached to a door motor 24 and are detected by a pulse or the like detecting means. Is a door control circuit provided with a detector 25 for detecting the position of the door.

In the figure, reference numeral 26 denotes a maintenance device 22.
Output a command to switch the door-door opening control to a constant low torque and a constant low speed based on the command from the door control circuit 23,
Starting from the fully closed position of the car door, measure the amount of movement of the car door until the car door and the landing door are engaged, and compare the deviation between the engagement dimension reference value and the measurement result with a predetermined determination value. A function of determining whether there is an abnormality in the engagement dimension, and outputting a command to the elevator control panel 21 to immediately stop the door opening operation and switch to the door closing operation after detecting the engagement point between the car door and the landing door. Operation control circuit having engagement dimension measurement, 27
It is a memory that stores the car door movement amount and the abnormality presence / absence determination result until the car door and the landing door are engaged with each floor based on the car door fully closed position. The other basic configuration is the same as the conventional example.

Next, the operation of the elevator door control device according to the first embodiment will be described with reference to the drawings. FIG. 2 is a flowchart showing the operation of the elevator door control device according to Embodiment 1 of the present invention.

First, at step 100, the engagement dimension measurement operation control circuit 26 inputs an engagement dimension measurement operation command from the maintenance device 22 via the elevator control panel 21 and the door control circuit 23.

Next, in step 101, when there is no engagement dimension measurement operation command, and when an instruction to end the engagement dimension measurement operation is input, in step 114,
End the operation. On the other hand, if there is an engagement dimension measurement operation command, the process proceeds to the next step 102.

Next, in step 102, it is determined whether or not an elevator call for running the elevator to the engagement dimension measuring floor has been registered. When it is detected that the call has been registered, the process proceeds to the next step 103. Transition. Here, the operator creates an elevator call of the floor for which the engagement dimension is to be measured by using the maintenance device 22 or the elevator control panel 21. For example, when it is desired to measure the engagement dimensions of all the floors, a call for the elevators on all floors may be created so that the elevators are sequentially moved from the upper part or the lower part to each floor.

Next, at step 103, the car door 1
The process does not proceed to the next step 104 until it is detected that a is completely closed. According to the call made in step 102,
When it is detected that the car door 1a is fully closed to allow the elevator to travel, the process proceeds to step 104.

Next, at step 104, the engagement dimension measuring operation control circuit 26
When the door is opened after the elevator stops due to the response to the call created in step 102, the elevator door 1 (1
A door operation command is output to control the speeds a and 1b) at a constant low speed and a constant low torque. This output is maintained until the engagement dimension measurement operation command is completed,
Each time the elevator stops in response to the elevator call created in step 2, the door opening speed of the elevator door 1 is controlled to a constant low speed and a constant low torque.

Next, in step 105, if the elevator is running in response to the created call, the process does not proceed to the next step. When it is detected that the elevator arrives at the destination floor and performs the door opening operation, the next step 1 is performed.
Shift to 06.

Next, in steps 106 to 108,
Starting from the position where the elevator door 1 is fully closed, the amount of movement of the car door after the start of opening the door is determined by the door motor 24.
Is measured by the signal from the detector 25. This measurement is
The door opening operation of the car door 1a in FIG.
Until the drive vane 7 detects that the door speed has decreased due to the mechanical load generated when the movable roller 15 of the landing door 1b is driven, and the decrease in the door speed falls below a predetermined value. Then, the measurement of the amount of movement of the car door on the floor of this floor ends. As a result, the measurement of the engagement dimension between the car door 1a and the landing door 1b on the floor is completed.

Next, at step 109, the elevator control panel 21 via the door control circuit 23 sends the current elevator information to recognize which floor the engagement dimension measured at steps 106 to 108 is. Enter the stop floor.

Next, in step 110, although the measurement of the amount of movement of the car door 1a has been completed up to step 109, the door itself is being opened, and the elevator control panel is controlled via the door control circuit 23. A door closing command is issued to 21 and the door opening operation is stopped before the door is fully opened to shift to the door closing operation. Since the measurement of the movement amount of the car door 1a and the input of the floor are completed, it is not necessary to continuously open the elevator door until the door is fully opened, and it is necessary for the door to be fully opened and the door to be closed further. This is to eliminate dead time. By this, to other floors where engagement dimension measurement is required,
The elevator can run quickly.

Next, in step 111, the amount of movement of the car door 1a, which is measured in steps 106 to 108, the so-called engagement dimension between the car door 1a and the landing door 1b, and a predetermined engagement dimension reference The deviation of the values is determined, and it is compared whether the deviation is within a predetermined determination value. As a result of the determination, if the deviation of the engagement dimension is within the determination value, the process proceeds to step 112, and if the deviation of the engagement size is outside the determination value, the process proceeds to step 113.

In step 112, in addition to the measured amount of movement of the car door 1a and the floor of the elevator, a determination record indicating that the engagement dimension is normal and a measurement date and time are recorded in the memory 27 shown in FIG.

In step 113, the measured movement amount of the car door 1a, the elevator floor, the judgment record indicating that the engagement dimension is abnormal, and the measurement date and time are recorded in the memory 27 shown in FIG.

As described above, the engagement dimension is measured while the operator sequentially moves the elevator to the floor requiring measurement.

According to the first embodiment, when the elevator door 1 constituted by the car door 1a and the landing door 1b is opened, the car door 1a and the landing door 1 start from the fully closed position of the car door.
While measuring the car door movement amount until b is engaged,
An engagement dimension measurement operation control circuit 26 for comparing the deviation between the engagement dimension reference value and the measured car door movement amount with a predetermined determination value to determine whether the engagement dimension is abnormal; By providing the memory 27 for storing the judgment results and the like for each floor, there is no need to board the elevator for the work of measuring the engagement dimension between the car door 1a and the landing door 1b, and all elevator control is performed. Since the work can be performed in the vicinity of the board 21, the time required for the work is greatly reduced, and the convenience of the user due to the shortened work time is improved.

In addition, as the measurement operation is changed from visual measurement to automatic measurement, the measurement accuracy is greatly improved.
This makes it possible to perform appropriate adjustment of the engagement dimension, so that the door stop noise is loud when the elevator door is fully closed, or the landing door 1b on the passage floor during elevator travel.
It is possible to eliminate such a problem that the engaging portion of the car door 1a collides with the engaging portion of (1) and the elevator stops suddenly.

Further, according to the first embodiment, in the elevator constituted by the car door 1a and the landing door 1b, the door door opening control is performed with a constant low torque and a constant torque based on a measurement command from the maintenance device 22 or the like. In addition to switching to a low speed, during the door opening control operation, an engagement for detecting an engagement point between the car door 1a and the landing door 1b by a change in motor speed generated when the car door 1a is engaged with the landing door 1b. The provision of the dimension measurement operation control circuit 26 does not hinder the opening / closing operation of the elevator during normal use, so that the operation can be limited to the maintenance and inspection, and the operation between the car door 1a and the landing door 1b can be performed. It is possible to easily and accurately measure a combined dimension.

Further, according to the first embodiment, in the elevator constituted by the car door 1a and the landing door 1b, the door opening operation is immediately stopped after detecting the engagement point between the car door 1a and the landing door 1b. Since the engagement dimension measurement operation control circuit 26 that outputs an operation command for switching to the door closing operation to the elevator control panel 21 is provided, the dead time required for the door to be fully opened and further the door closing operation can be eliminated, and the engagement dimension measurement is required. The elevator can be quickly moved to the floor of the building.
Thereby, the stop time of the elevator due to the inspection can be reduced.

Embodiment 2 An elevator door control device according to Embodiment 2 of the present invention will be described with reference to the drawings. FIG. 3 is a flowchart showing the operation of the elevator door control device according to Embodiment 2 of the present invention. The configuration is the same as in the first embodiment.

The difference from the first embodiment is that steps 104 and 10 in the flowchart in FIG.
7 Hereinafter, the operation of the second embodiment will be described with reference to the flowchart of FIG.

Step 2 of the flowchart in FIG.
At 00, the engagement dimension measurement operation control circuit 26 instructs the door control circuit 23 to open the door after the elevator stops by responding to the call created in step 102.
A door operation command is output to control the speed of the door to a constant low speed.

Thereafter, as in the first embodiment, the movement amount of the car door 1a is measured based on steps 201 and 202.

When the landing door 1b and the car door 1a are engaged with each other, a mechanical load is applied when the driving vane 7 of the car door 1a drives the movable roller 15 of the landing door 1b by the opening operation of the car door 1a in FIG. Therefore, in order to keep the door speed constant, it is necessary to increase the torque of the door motor 24 by an amount corresponding to the increased mechanical load.

By detecting a necessary increase in the torque of the door motor 24 accompanying the continuation of the constant door speed low speed control, it is detected that the car door 1a and the landing door 1b are engaged, and the rise value is detected. The process proceeds to step 204 when the value exceeds a predetermined value.

[0051]

As described above, the elevator door control device according to the first aspect of the present invention starts from the fully closed position of the car door when the elevator door including the car door and the landing door is opened. The movement amount of the car door until the car door and the landing door are engaged is measured, and the deviation between the reference value of the engagement dimension and the measured movement amount of the car door is compared with a predetermined determination value to determine Since there is provided an engagement dimension measurement operation control circuit for determining the presence or absence of an abnormality in the combined dimension, and a memory for storing the measurement result and the abnormality presence / absence determination result by the engagement dimension measurement operation control circuit for each floor, The time required for the measurement can be greatly reduced, and the user's convenience can be improved by shortening the work time. In addition, the measurement work has been changed from visual measurement to automatic measurement, and the measurement accuracy has been greatly improved. Improve There is an effect that it is.

In the elevator door control device according to the second aspect of the present invention, as described above, the engagement dimension measuring operation control circuit performs the operation based on the measurement command from the maintenance device.
Switching the door opening control for the door control circuit to a constant low torque and a constant low speed, and changing the speed of the door motor that occurs when the car door engages with the landing door during the door opening control operation. By detecting the engagement point between the car door and the landing door, the time required for the work can be greatly reduced, and the convenience of the user can be improved due to the shortened work time. With the automatic measurement instead of the visual measurement, there is an effect that the measurement accuracy can be greatly improved.

In the elevator door control device according to a third aspect of the present invention, as described above, the engagement dimension measurement operation control circuit performs the operation based on the measurement command from the maintenance device.
Switching the door opening control for the door control circuit to constant low speed control, and during the door opening control operation, changing the torque of the door motor generated when the car door engages with the landing door. Since the engagement point between the door and the landing door is detected, the time required for the work can be significantly reduced, and the convenience of the user can be improved due to the shortened work time. With the automatic measurement, the measurement accuracy can be greatly improved.

As described above, in the elevator door control device according to a fourth aspect of the present invention, the door immediately after the engagement dimension measuring operation control circuit detects the engagement point between the car door and the landing door. Since the operation command to stop the opening operation and switch to the door closing operation is output to the elevator control panel, the time required for the work can be significantly reduced, and the convenience of the user due to the shortened work time can be improved. In addition, with the measurement work going from automatic measurement to visual measurement,
There is an effect that measurement accuracy can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an elevator door control device according to Embodiment 1 of the present invention.

FIG. 2 is a flowchart illustrating an operation of the elevator door control device according to the first embodiment of the present invention.

FIG. 3 is a flowchart showing an operation of an elevator door control device according to Embodiment 2 of the present invention.

FIG. 4 is a front view of a car door mechanism controlled by a conventional elevator door control device.

FIG. 5 is a plan view showing an engagement relationship between a car door and a landing door controlled by a conventional elevator door control device.

FIG. 6 is a diagram showing the front of a landing door mechanism controlled by a conventional elevator door control device.

[Explanation of symbols]

1 elevator door, 1a car door, 1b landing door, 2
1 elevator control panel, 22 maintenance device, 23 door control circuit, 24 door motor, 25 detector, 26
Engagement dimension measurement operation control circuit, 27 memories.

Claims (4)

[Claims] When the elevator door constituted by a car door and a landing door is opened, the movement amount of the car door until the car door and the landing door are engaged starting from a fully closed position of the car door is determined. An engagement dimension measurement operation control circuit that determines a presence or absence of an abnormality in the engagement dimension by comparing a deviation between the measured engagement dimension reference value and the measured amount of movement of the car door with a predetermined determination value; An elevator door control device, comprising: a memory for storing the measurement result and the abnormality presence / absence determination result by the combined dimension measurement operation control circuit for each floor. 2. The engagement dimension measurement operation control circuit switches the door control for the door control circuit to a constant low torque and a constant low speed based on a measurement command from a maintenance device, and performs the door opening control operation. 2. The elevator according to claim 1, wherein an engagement point between the car door and the hall door is detected based on a change in a speed of a door motor generated when the car door is engaged with the hall door. 3. Door control device. 3. The engagement dimension measurement operation control circuit, based on a measurement command from a maintenance device, switches the door door opening control for the door control circuit to a constant low speed control, and during the door opening control operation, The control of the elevator door according to claim 1, wherein an engagement point between the car door and the hall door is detected by a change in a torque of a door motor generated when the car door is engaged with the hall door. apparatus. 4. An engagement dimension measuring operation control circuit, after detecting an engagement point between the car door and the landing door, immediately issues an operation command to stop the door opening operation and switch to the door closing operation to the elevator control panel. 4. The output of claim 2 or 3,
An elevator door control device as described in the above.