JP2020169095A - Elevator door device and control method thereof - Google Patents

Abstract

To provide an elevator door device capable of preventing the pinching of an obstacle before a door provided in a car reaches a door closing end.SOLUTION: An elevator door device 26 for controlling the opening/closing of car doors 4, 9 provided on a car, includes a car door closing end detection switch 23 for detecting that the car doors 4, 9 are positioned at a closing end position 21, a car door inclination detection switch 24 for detecting the inclination of the car doors 4, 9, and a departure condition determination part 25 for determining departure permission when the car is moved up/down. The departure condition determination part 25 determines the departure permission of the car when respective detection signals taken from the car door closing end detection switch 23 and the car door inclination detection switch 24 are detected under AND conditions of a first signal showing that the car doors 4, 9 are located at the closing end position 21 and a second signal showing that the car doors 4, 9 are not inclined.SELECTED DRAWING: Figure 1

Description

The present invention relates to an elevator door device and a control method thereof, and more particularly to an elevator door device provided with a car door closing detection switch and a control method thereof.

As a background of this technical field, there is an elevator safety device and a safety control method described in Patent Document 1. The technology can detect small-diameter string-like foreign matter and tape-like string-like foreign matter, does not require time and effort for maintenance, does not impair design, and allows passengers to respond quickly when foreign matter is detected. Is. More specifically, a light emitting device provided between the car side door and its threshold and the landing side door and its threshold, which emits light linearly over the width of the frontage of the doorway, and a camera installed above the doorway. , An image processing means for processing the image captured by this camera, the light emitting device is made to emit light, the image including the threshold surface and the tip surface of the door is captured by the camera, and the area brightened by the light of the light emitting device by the image processing means. Is extracted, and the foreign matter is detected by the fact that the brightened area is divided.

Japanese Unexamined Patent Publication No. 2010-269890

However, the elevator safety device and safety control method described in Patent Document 1 need to be provided with a camera and an image processing means for processing the image captured by the camera, and a complicated configuration can be avoided. Absent. The present invention has been made in view of such a problem, and an object of the present invention is to prevent an obstacle from being caught before the car door provided in the car reaches the closed end position with a simpler configuration. To provide an elevator door device.

In order to solve the above problems, the present invention is an elevator door device that controls the opening and closing of a car door provided for a car, and the car door is closed to detect that the car door is in the closed position. The car door tilt detection switch for detecting the tilt of the car door, and a departure condition determination unit for determining whether or not the vehicle can depart when the car moves up and down are provided, and the departure condition determination unit is the car. The detection signals taken from the door closed end detection switch and the car door tilt detection switch are the first signal indicating that the car door is in the closed end position and that the car door is not tilted. When it is detected under the AND condition with the second signal to be represented, the departure permission of the car is determined.

According to the present invention, it is possible to provide an elevator door device having a simpler structure and preventing an obstacle from being caught before the car door provided in the car reaches the closed end position. Issues, configurations, and effects other than those described above will be clarified from the description of the embodiments described later.

Among the elevator door devices according to the embodiment of the present invention, a front view showing the entire car door and a view for explaining the control thereof. It is an enlarged front view of one half of the car door shown in FIG. It is a side view of the car door shown in FIG. 1 and FIG. 2, and is a block diagram explaining the closing operation control thereof. It is a flowchart which briefly explains the control method of the door closing operation performed by the elevator control device shown in FIGS. 1 and 3.

Hereinafter, the elevator door device according to the embodiment of the present invention will be described with reference to the drawings. In the following description, the elevator door device is abbreviated as "this device", and the control method of the door closing operation performed by the elevator control device is abbreviated as "this method".

This device has a closed state in which symmetrical sliding doors are joined at the center of the frontage, that is, the car door closed end position (also referred to as "closed end position" or "door closed end"), and an open state in which the sliding doors are separated into both sides. The opening / closing operation in which the opening / closing state changes will be described. In particular, the points to safely and surely execute the closing operation, the point to shorten the work time by not having to move the car up and down at the time of construction adjustment and maintenance adjustment, and the consideration for each will be explained in detail.

FIG. 1 is a front view showing the entire car door of the present device and a view for explaining the control thereof. As shown in FIG. 1, in an elevator having an entrance / exit, the apparatus 26 has a car door machine (hereinafter, simply referred to as “door machine”) above the car doors (hereinafter, also simply referred to as “doors”) 4 and 9. 22 is fixed, and a car door sill 5 is fixed at the lower part of the doors 4 and 9. A door motor 7 and a door pulley 2 are arranged on the upper portion of the door machine 22 so as to face each other at both ends in the horizontal direction. An endless door belt 8 is hung between the rotating shaft of the door motor 7 and the door pulley 2.

Further, a car door rail (hereinafter, also simply referred to as "door rail") 3 is attached to the lower part of the inside of the door machine 22 so as to extend substantially parallel and horizontally with respect to the horizontally elongated door machine 22. ing. The doors 4 and 9 are attached with car door hangers (hereinafter, also simply referred to as “door hangers”) 6 and 10 provided with rollers 11 and 12 that roll horizontally along the door rail 3.

One end of the belt grip 14 is fixed to the lower road side of the door belt 8, and the other end of the belt grip 14 is connected to the door hanger 6. Similarly, another belt grip 13 is fixed to the upper road side of the door belt 8, and the other end of the belt grip 13 is connected to the door hanger 10. Further, a lower switch 15 and a lower switch bracket 16 are attached to the door hanger 6 suspended from the door rail 3, and the lower switch 15 and the lower switch bracket 16 provide a car door tilt detection switch (hereinafter, "tilt detection switch"). (Also called) 24 is configured.

FIG. 2 is an enlarged front view of one half of the car door shown in FIG. As shown in FIG. 2, the tilt detection switch 24 is attached to the door hanger 6 with its contact 17 side facing upward or downward and providing a predetermined gap with respect to the door rail 3. When the door 4 is tilted, the tilt detection switch 24 detects the tilt of the door 4 by the contact 17 side of the lower switch 15 coming into contact with the door rail 3 and operating ON. The tilt detection switch 24 is provided only on one of the two doors 4 and 9 that are double-door. This is because when one door 9 is tilted, the other door 4 is also tilted substantially evenly, so it is sufficient if only one door 4 can be tilted and detected.

FIG. 3 is a side view of the car door shown in FIGS. 1 and 2 and a block diagram for explaining the closing operation control thereof. As shown in FIGS. 1 to 3, the car door closed end detection switch (hereinafter, also referred to as “closed end detection switch”) 23 is composed of an upper switch 18 and an upper switch cam 19. Further, a frame of the door machine 22 is fixed to the upper part of a car (not shown). An upper switch 18 is attached to the frame of the door machine 22, and is not interlocked with the doors 4 and 9.

On the other hand, since the upper switch cam 19 is attached to the door hanger 6, it is linked to the opening / closing operation of the doors 4 and 9. The upper switch cam 19 is positioned so that the upper switch 18 operates at the car door closed end position 21 with respect to the mounting position on the door hanger 6. The closed end detection switch 23 is configured by the upper switch 18 and the upper switch cam 19 arranged in this way.

The closed end detection switch 23 is fixed by a bracket on the front side of the door hanger 6. On the other hand, the upper switch 18 is positioned and fixed to the frame of the door machine 22 so that the contact 1 side thereof faces the door rail 3 side via the bracket.

On the other hand, the upper switch cam 19 is attached to the door hanger 6 at the position where the upper switch 18 is operated at the closed end position 21. As shown in FIGS. 2 and 3, the closed end detection switch 23 detects the closing operation of the doors 4 and 9 as follows. That is, when the doors 4 and 9 reach the closed end position 21 in a normal state, the upper switch cam 19 comes into contact with the contact 1 side of the upper switch 18 to perform an ON operation. It is detected that the doors 4 and 9 have reached the closed end position 21 by the ON operation of the closed end detection switch 23.

The closed end detection switch 23 is provided only on one of the two doors 4 and 9 that are double-opened. This is also because when one door 9 opens and closes, the other door 4 moves almost the same in contrast, so it is sufficient if only one door 4 can detect whether or not the closed end position 21 has been reached. .. As described above, the apparatus 26 has an extremely simple additional function of detecting that a foreign substance is caught between the doors 4 and 9.

Further, as shown in FIG. 3, the elevator control device 20 has a departure condition determination unit 25 and a failure sign diagnosis unit 26. The starting condition determination unit 25 and the failure sign diagnosis unit 26 separately capture the operation signals of the closed end detection switch 23 and the inclination detection switch 24 (steps S2 and S3 in FIG. 4). The departure condition determination unit 25 enables the tilt detection switch 24 to be turned off (step S2) and the closed end detection switch 23 to be turned on (step S3), so that the elevator car can be departed under these AND conditions.

The failure sign diagnosis unit 26 predicts a failure or the like based on the correlation between the closed end detection switch 23 and the tilt detection switch 24 and the timing of the operation signal captured by each with reference to a known aging deterioration pattern. It has a function to diagnose. For example, if the failure sign diagnosis unit 26 predicts that small dust is caught in the car closing position 21, the dust is swept into the hole of the lower end rail by repeatedly opening and closing the doors 4 and 9. You can also set the operation. Such a setting can be accommodated in any way depending on the program of the elevator control device 20.

FIG. 4 is a flowchart for briefly explaining a method of controlling a door closing operation (this method) performed by the elevator control device shown in FIGS. 1 and 3. Although detailed illustration is omitted, as shown in FIG. 4, this method is performed from the door closing command step S1, the step S2 for capturing the detection signal from the door tilt detection switch 24, and the door closing end detection switch 23. It has a step S3 for capturing the detection signal of the above, a departure command step S4, and a door opening command step S5. These are executed by the elevator control device 20.

Hereinafter, the operation without a subject is executed by the elevator control device 20. Further, each configuration, function, processing unit and the like of the elevator control device 20 may be realized by hardware by designing a part or all of them by, for example, an integrated circuit. Further, each of the above-mentioned configurations, functions, and the like may be realized by software by the processor interpreting and executing a program that realizes each function. Information such as programs, tables, and files that realize each function can be stored in a memory, a hard disk, a storage device such as an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.

The door closing command step S1 is executed based on a destination floor instruction by the user, a closing instruction, a timer instruction by the control program, or the like. In response to this, when the doors 4 and 9 are closed, the detection signal from the door tilt detection switch 24 is taken in (step S2). When the door tilt detection switch 24 detects a person, a foreign object, or the like (No in step S2), the ON signal is taken into the elevator control device 20, and the door is returned to the door closing command step S1 through the door opening command step S5.

If the door tilt detection switch 24 does not detect a person, a foreign object, or the like (Yes in step S2), the elevator control device 20 takes in the OFF signal and proceeds to step S3. In step S3, when the door closed end detection switch 23 detects the door closed end and the ON signal is taken into the elevator control device 20 (Yes in step S3), the process proceeds to step S4, and the departure condition determination unit 25 uses the car. Command the departure.

On the contrary, if the door closing detection switch 23 does not detect the door closing in step S3 (No in step S3), the OFF signal is taken into the elevator control device 20, and the door closing command step is performed through step S5. Return to S1. From there, through steps S2 and S3 described above again, if the AND condition is such that the permission signal can be obtained from the departure condition determination unit 25, the elevator is controlled so as to be able to depart (step S4), and then this operation is terminated. .. If the AND condition is not satisfied, the door opening command is issued again after the door opening command (step S5) (step S1).

The door tilt detection switch 24 outputs an OFF signal (no signal) when normal and an ON signal when tilt is detected, but the relationship between ON and OFF may be reversed. In that case, the logic processed by the departure condition determination unit 25 built in the elevator control device 20 may be reversed.

Similarly, the relationship between ON and OFF of the door closing detection switch 23 may be reversed. Further, the closed end detection switch 23, the inclination detection switch 24, the departure condition determination unit 25, and the failure sign diagnosis unit 26 do not necessarily have to be built in the elevator control device 20. These may be functions or connecting elements constituting the elevator control device 20.

Further, the above-mentioned failure sign diagnosis unit 26 continuously monitors the correlation between the operation timing of the closed end detection switch 23 and the operation timing of the tilt detection switch 24 on the elevator control device 20 side, and performs maintenance monitoring. And some of the diagnostic functions are automated. That is, the failure sign diagnosis unit 26 detects that the doors 4 and 9 are tilted over time due to dust accumulation or the like by this continuous monitoring, and makes a sign diagnosis of the failure or the like based on the detection result.

On the premise that the predictive diagnosis unit 26 for failure etc. can diagnose the sign of failure etc., if the positional relationship between the upper switch 18 and the upper switch cam 19 and the positional relationship between the lower switch 15 and the lower switch bracket 16 are appropriately adjusted, the elevator Management that minimizes door gaps and tilts will be realized as a criterion for determining whether or not to allow departure.

Therefore, although it is different from Patent Document 1, the gap between the doors on the lower side becomes large like a conventional door device having a mechanical detection switch, and the doors 4 and 9 are tilted in a V shape and closed. , Can prevent the elevator from leaving. As a result, it is possible to avoid the problem that a small-sized foreign matter is caught in the gap generated at the lower end portion and the problem that the foreign matter caught there interferes with the landing side. The "state in which the door is closed by tilting in a V shape" is a closed state in which a pair of symmetrical double-door sliding doors 4 and 9 are butted at the center of the frontage, that is, at the closed end position 21. A state in which a triangular gap is formed centered on the door closing position 21.

Further, by appropriately adjusting the positional relationship between the lower switch 15 and the lower switch bracket 16 with respect to the door hanger 6, the door can be managed so as to minimize the inclination of the door. Therefore, a person or an obstacle to the door within the door closing operation range. It is possible to detect hitting objects and prevent them from being pinched. The door closing operation range refers to the range from the fully open state to the fully closed state of the doors 4 and 9.

Further, when the failure sign diagnosis unit 26 of the elevator control device 20 also separately captures the operation signals of the upper closed end detection switch 23 and the lower tilt detection switch 24 and continuously monitors the correlation of the operation timing, dust is accumulated. It is also possible to detect that the doors 4 and 9 are tilted over time, and it is possible to diagnose a sign of failure or the like.

As described above, in the present invention, the tilt of the closed end detection switch 23 for detecting that the doors 4 and 9 provided in the car are at the closed end position 21 and the doors 4 and 9 provided in the car. The present device having the tilt detection switch 24 for detection takes in the detection signals of the closed end detection switch 23 and the tilt detection switch 24 as separate signals, and only when the upper switch signal and the lower switch signal are detected under the AND condition. A departure condition determination unit 25 is provided so that the elevator can depart.

According to such a configuration, it is detected that the doors 4 and 9 are hit by an obstacle in the entire door closing operation range of the doors 4 and 9 and the doors 4 and 9 are tilted in a V shape, and the doors 4 and 9 are tilted. It is possible to prevent the elevator from departing when the door is closed at an angle of C. In addition, since it is possible to prevent obstacles from being pinched during the closing operation of the doors 4 and 9, it is possible to avoid a situation in which a small-sized object is caught in the gap generated at the lower end and interferes with the landing side. it can.

Here, although there are some overlaps, the present device 26 will be briefly summarized including other problems and effects. Although different from Patent Document 1, the conventional elevator door device having a mechanical detection switch could not detect the pinching of an obstacle until the car door reaches the closed position. In addition, it is necessary to move the car up and down when adjusting the installation position or maintenance of the door closing detection switch, which requires a considerable amount of work time. Therefore, the present device 26 that can solve such a problem is provided.

The main loading value 26 is an elevator door device 26 that prevents obstacles from being caught by the doors 4 and 9 provided in the car, and is a closed end detection that detects that the doors 4 and 9 are in the closed end position 21. The switch 23 and the tilt detection switch 24 that detects the tilt of the doors 4 and 9 over the entire door closing operation of the doors 4 and 9 are at approximately the same height so as to be concentrated on the upper part of the car doors 4 and 9. They are arranged together. In addition to these, the departure condition determination unit 25 that takes in the detection signals of the closed end detection switch 23 and the inclination detection switch 24 as separate signals and determines that the elevator can depart when the detection signal is detected under the AND condition. Also provided.

According to the present device 26, it is detected that an obstacle comes into contact with the doors 4 and 9 over the entire range of the door closing operation range of the doors 4 and 9, and the doors 4 and 9 are tilted. As a result, it is possible to prevent the elevator from starting when the doors 4 and 9 are closed with a gap between the car doors opened on the lower side thereof. Further, since the apparatus 26 is installed at almost the same height so as to be integrated on the upper part of the car door, it is not necessary to move the car up and down during construction adjustment and maintenance adjustment. As a result, those working hours can be shortened.

Further, the elevator door device (this device) 26 can be summarized as follows.
[1] The present device 26 controls the opening and closing of doors 4 and 9 provided in the car by an elevator control device 20 having a simpler structure. The device 26 includes a closed end detection switch 23, a tilt detection switch 24, and a departure condition determination unit 25 as functions or connection elements constituting the elevator control device 20.

The closed end detection switch 23 detects that the doors 4 and 9 are at the closed end position 21 as a first signal. The tilt detection switch 24 detects as a second signal that the doors 4 and 9 have no tilt tilt in the entire door closing operation. The departure condition determination unit 25 is provided in the elevator control device 20 and determines whether or not the vehicle can depart when the car goes up and down.

The departure condition determination unit 25 determines the departure permission when the detection signals captured from each of the closed end detection switch 23 and the inclination detection switch 24 detect the first signal and the second signal under AND conditions. do.

In the apparatus 26, if there is an obstacle located below the doors 4 and 9, the departure condition determination unit 25 causes the doors 4 and 9 due to the obstacle before the doors 4 and 9 reach the closed end position 21. Since the lower part of the door is hindered from the closing operation, the closing operation is deviated from the upper part of the doors 4 and 9, and the door is tilted. The tilt detection switch 24 detects the tilt.

At this time, the detection signals captured from each of the closed end detection switch 23 and the door tilt detection switch 17 are the first signal indicating that the doors 4 and 9 are at the closed end position 21, and the tilt of the doors 4 and 9. When the AND condition of the second signal indicating that there is no inclination is not satisfied, it is determined that the departure is not permitted. As a result, it is possible to prevent the obstacles located below the doors 4 and 9 from being pinched. Obstacles need to be removed to obtain a departure permit decision.

[2] The tilt detection switch 24 detects that the doors 4 and 9 are tilted when a person or an obstacle comes into contact with the doors 4 and 9 while the doors 4 and 9 are closed. According to this, it is possible to easily execute the control leading to the operation of preventing the person or the obstacle from being pinched by using the signal detected that the doors 4 and 9 are tilted.

[3] The departure condition determination unit 25 detects that the doors are in a closed state with a gap between the doors on the lower side of the doors 4 and 9 even if the doors 4 and 9 are in the closed end position 21. When the switch 24 detects it, the start of the raising and lowering operation of the car is prohibited. Therefore, if a person or an obstacle is caught in the car, the start of the raising / lowering operation of the car is prohibited, so that danger can be prevented.

[4] The present device 26 includes a door machine 22, a door rail 3, door hangers 6 and 10, an upper switch 15, an upper switch cam 19, a closed end detection switch 23, a lower switch bracket 16, and a lower switch 15. And a tilt detection switch 24.

The door machine 22 is fixed to the upper portion of the doors 4 and 9. The door rail 3 is fixed to the lower portion of the door machine 22 substantially parallel to the door machine 22. The door hangers 6 and 10 have rollers 11 which are fixed to the upper portions of the doors 4 and 9 and roll along the door rail 3.

The upper switch 15 is attached to the frame of the door machine 22 located above the doors 4 and 9. The upper switch cam 19 is attached at a position where the upper switch 18 is operated when the doors 4 and 9 are in the closed end position 21. The closed end detection switch 23 includes an upper switch 18 and an upper switch cam 19. The lower switch bracket 16 is attached to the door hangers 6 and 10 suspended from the door rail 3.

The lower switch 15 is fixed to the lower switch bracket 16 so that the contact side faces upward or downward and a predetermined gap is provided with respect to the door rail 3. The tilt detection switch 24 includes a lower switch 15 and a lower switch bracket 16. The door closed end detection switch 23 includes an upper switch 18 and an upper switch cam 19. The upper switch cam 19 is attached at a position where the upper switch 18 is operated.

Further, the upper portions of the doors 4 and 9 are suspended on the door rail 3 via the rolling rollers 11 and move to open and close accurately. In such a configuration, the door closed end detection switch 23 detects that the upper portion of the doors 4 and 9 has accurately reached the closed end position 21. On the other hand, if there is an obstacle located below the doors 4 and 9, the obstacle prevents the lower part of the doors 4 and 9 from closing before the doors 4 and 9 reach the closing position 21.

In this state, the upper part of the doors 4 and 9 accurately reaches the closed end position 21, but the lower part sandwiching the obstacle does not reach the closed end position 21 and is not vertical, and is not vertical with the upper part of the doors 4 and 9. The closing operation is out of order and tilts. When the inclination detection switch 24 detects the inclination, the departure condition determination unit 25 prohibits the departure of the car.

Further, since the closed end detection switch 23 and the door tilt detection switch 24 are arranged on the door machine 22 fixed to the car above the doors 4 and 9, there is no great difference in height in the vertical direction. Therefore, when both of these switches 23 and 24 are adjusted for construction or maintenance, the height of the car does not have to be changed a plurality of times. As a result, the corresponding work time can be shortened and efficiently performed.

The elevator door control method (this method) can be summarized as follows.
[5] This method is a method of opening / closing the doors 4 and 9 provided for the elevator control device 20 having a simpler structure. As shown in FIG. 4, the door closing command of the doors 4 and 9 is issued by the step (S1). Next, in steps (S2 and S3), the detection signals from the closed end detection switch 23 and the tilt detection switch 24 are taken in as separate signals.

Next, the detection signal by the closed end detection switch 23 is the first signal indicating that the doors 4 and 9 are in the closed end position, and the detection signal by the car door tilt detection switch 24 is the doors 4 and 9. When the AND condition that it is the second signal indicating that there is no inclination of is satisfied (Yes in S2 and S3), the departure condition determination unit 23 determines that the car can depart, and the elevator control device 20 determines that the car can depart. Command the departure (step S4). On the contrary, when the AND condition is not satisfied (No in S2 and S3), the door opening command (S5) of the doors 4 and 9 is issued, and then the door closing command (S1) of the doors 4 and 9 is issued again.

According to this method, when the AND condition is inadequate, the effect of opening and reclosing the door is to warn people, and if it is small dust, it is self-cleaned by dropping it into the hole of the lower end rail. effective. As a result, the doors 4 and 9 provided in the car can prevent the obstacles located below the doors 4 and 9 from being caught.

The present invention is not limited to the above-described examples, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations. Further, the configurations of the closed end detection switch 23 and the tilt detection switch 24 are not limited to those shown in the drawings.

1 Car door closed end detection switch contacts, 2 door pulleys, 3 car door rails, 4 car doors, 5 car door thresholds, 6, 10 door hangers, 7 door motors, 8 door belts, 9 car doors, 11, 12 rollers, 13, 14 belts. Grab, 15 lower switch, 16 lower switch bracket, 17 car door tilt detection switch contact, 18 upper switch, 19 upper switch cam, 20 elevator control device, 21 car door closed position (door closed end), 22 car door machine , 23 Car door closed end detection switch, 24 Car door tilt detection switch, 25 Departure condition judgment unit, 26 Elevator door device (this device)

Claims (5)

An elevator door device that controls the opening and closing of the car door provided for the car.
A car door closed end detection switch that detects that the car door is in the closed end position,
The car door tilt detection switch that detects the tilt of the car door,
A departure condition determination unit that determines whether or not the vehicle can depart when the car goes up and down,
With
In the starting condition determination unit, the detection signals taken from the car door closed end detection switch and the car door tilt detection switch include a first signal indicating that the car door is in the closed position and a first signal. When it is detected under the AND condition with the second signal indicating that the car door is not tilted, the departure permission of the car is determined.
Elevator door device. In the elevator door device according to claim 1,
The car door tilt detection switch detects that the car door is tilted when a person or an obstacle comes into contact with the car door while the car door is closing.
Elevator door device. In the elevator door device according to claim 1,
In the departure condition determination unit, even if the car door is in the closed position, the car door tilt detection switch indicates that the car door is in a closed state with a gap between the car doors opened on the lower side of the car door. If detected, the departure of the raising and lowering operation of the car is prohibited.
Elevator door device. In the elevator door device according to claim 1,
The car door machine fixed to the upper part of the car door,
At the lower part of the car door machine, a car door rail fixed to the car door machine,
A car door hanger fixed to the upper part of the car door and having rollers each rolling along the car door rail.
An upper switch mounted on the frame of the car door machine located above the car door,
An upper switch cam attached to a position where the upper switch is operated when the car door is in the closed position, and
The lower switch bracket attached to the car door hanger suspended from the car door rail,
A lower switch fixed to the lower switch bracket, with the contact side facing upward or downward, and fixed with a predetermined gap to the car door rail.
The car door closed end detection switch is configured to include the upper switch and the upper switch cam.
The car door tilt detection switch includes the lower switch and the lower switch bracket.
Elevator door device. This is an elevator door control method that controls the opening and closing of the car door provided for the car by the elevator control device.
A step of capturing the detection signals from the car door closed end detection switch and the car door tilt detection switch as separate signals, and
The detection signal by the car door closed end detection switch is the first signal indicating that the car door is in the closed end position, and the detection signal by the car door tilt detection switch is the car door. When the AND condition of the second signal indicating that there is no inclination is satisfied, the step of determining that the car can be departed and
If the AND condition is not satisfied, the step of issuing the door opening command of the car door and then issuing the door closing command of the car door again, and
Have,
Elevator door control method.

Images