JP2001302156A - Elevator door device and its modifying construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator door device and its modifying method wherein modification is easy and a door speed pattern can be set easily. SOLUTION: The opening and closing of a door panel 3 are controlled by providing a signal transmitting means 23 for transmitting signals according to the movement of a door panel 3, letting the door panel 3 learn door opening width based on the signals of the signal transmitting means 23 when the doors panel 3 is moved from the completely closing position to the full open position and calculating a door speed pattern conforming to the door opening width.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device for opening and closing a doorway of an elevator, and more particularly to the ease of modifying an existing elevator door control device.

[0002]

2. Description of the Related Art Elevator door devices are renovated by removing a part of existing products and newly installing them from the viewpoint of service life and higher performance. For example, JP
According to Japanese Patent Application Publication No. 0-316326, the existing elevator control panel is modified to a new type control panel, and the door opening / closing mechanism of the car and the landing uses the existing product, but the door motor and the door control device are new products. Is disclosed. Japanese Patent Application Laid-Open No. 6-16370 also discloses a door motor and its control system which are changed to a new type. When modifying the door device, generally, the existing door motor and speed detector were individually installed, so they were replaced with new door motors that were integrated, and furthermore, the fully closed position and the fully open position. A new position detection switch for detecting the vehicle is installed, and only the existing doors are used for the car and the landing door opening / closing mechanism. However, most of the existing door control devices do not detect the speed of the door motor, so it is not easy to attach a speed detector to the existing door motor, and the door motor is often replaced.

[0003]

[0005] By the way, in repairing an existing elevator, it is indispensable that the work be completed in a short time so as to hinder smooth traffic in the building. However, the replacement of the door motor and the mounting of the position switch have a problem that the working time is prolonged and the cost is high. When a new door control device drives an existing door opening / closing mechanism, a method is employed in which the speed of a door motor is detected by a speed detector and controlled according to a door speed pattern. In this case, the existing door opening / closing mechanism cannot be controlled by the same door speed pattern because the door opening width and the link configuration are different. For this reason, there is a problem that it is necessary to change the door speed pattern for each door device, and it takes a lot of time to set the door speed pattern.

[0004] The present invention solves the above-mentioned problems, and is an elevator door device in which a new door control device can be easily attached to an existing door device. It is an object of the present invention to provide an elevator door device that can be easily set, and to provide a door device repair method for controlling the opening and closing of the door by the newly installed door control device.

[0005]

According to a first aspect of the present invention, there is provided an elevator door apparatus having a transmitting means for generating a signal in accordance with the movement of a door panel for opening and closing an entrance, and moving the door panel from a fully closed position to a fully open position. The door opening width is learned from the signal of the transmission means when the door opening width is learned, a door speed pattern suitable for the door opening width is calculated, and the door motor is controlled according to the door speed pattern to open and close the door panel. .

The elevator door apparatus according to claim 2 is
The transmitting means is a pulse generator that generates a pulse signal as the door panel moves.

[0007] The elevator door device according to claim 3 is
The count value of the signal when the door panel is driven in the fully-closed or fully-opened direction until the signal from the transmitting means is not continuously emitted for a predetermined time or longer is learned as a fully-closed position or a fully-opened position, and is obtained by this learning. The door opening width of the door panel is calculated from the difference between the fully open position and the fully closed position.

[0008] The elevator door device according to claim 4 is
A door position detecting means for detecting a fully closed position and a fully opened position of the door panel is provided, and the fully closed position and the fully opened position are learned from a signal of the transmitting means when the door position detecting means is operated. The door opening width of the door panel is calculated from the difference between the position and the fully closed position.

According to a fifth aspect of the present invention, there is provided an elevator door device, comprising:
The door speed pattern calculated by the learning means fluctuates as time elapses from a fully closed position or a fully opened position to a position just before a predetermined distance, and fluctuates with the distance from the predetermined distance to the fully closed position or a fully opened position. Things.

The elevator door apparatus according to claim 6 is
The door speed pattern can be changed by external operation means.

According to a seventh aspect of the present invention, there is provided a method of repairing an elevator door device, wherein at least the door motor is left as it is, the existing door control device for controlling the door motor is removed, and a signal is issued in accordance with the movement of the door panel. After the transmission means is newly installed, the door opening width is learned from the signal emitted by the transmission means when the door panel is moved from the fully closed position to the fully open position, and a suitable door speed pattern is set. The speed control means for controlling the door motor so as to open and close the door is newly provided.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 to FIG.
Embodiment 1 Embodiment 1 of the present invention will be described. FIG. 1 is a front view of an elevator door device, in which 1 is a car, 2 is a doorway of a car 1,
3 is a pair of door panels of a double door that opens and closes the entrance 2, 4 is a beam disposed above the door panel 3, 5 is a beam 4
Rail horizontally mounted on the 5a cat rail 5
A door hanger fixed to the upper end of the door panel 3; and 7 a roller rotatably mounted on the door hanger 6.

Reference numeral 10 denotes a mounting table mounted on the ceiling of the car 1, 11 denotes a reduction gear mounted on the mounting table 10, 12 denotes a door motor mounted on the reduction gear 11, and 13 denotes an output shaft of the reduction gear 11. , 14 are crank arms for converting the rotary motion of the output shaft 13 into linear motion, and 15 is the crank arm 1
4 is a connecting arm whose one end is pivotally mounted.
7 is a drive arm that is pivotally supported by the beam 4 and has one end pivotally attached to the other end of the connection arm 15 to rotate and drive the door panel 3 to open and close. That is, the door panel 3 is opened by moving in the direction of the arrow shown by the solid line in the figure, and the door panel 3 is closed by moving in the direction of the arrow shown by the dotted line.

Reference numeral 18 denotes a connecting arm having one end pivotally connected to the drive arm 17. 19 has one end pivotally supported by the beam 4 by a shaft 20, and is pivotally mounted on the connecting arm 18 to open and close the door panel 3. It is a driving arm to be driven. Reference numeral 21 denotes a rope having one end locked to one end of the door hanger 6 and the other end to which a weight 22 is attached. Reference numeral 23 denotes a pulse generator that is wound around the rope 21 and generates a number of pulse signals corresponding to the moving distance of the door panel 3. A transmission means 24 comprising a container is a door control device for controlling the door motor 12. In addition, the rope 21, the weight 22, and the pulse generator 23 are newly installed, and the door control device 24 is newly installed by removing an existing product.

FIG. 2 is a circuit diagram of the newly installed door control device 24. In the figure, the same symbols as those in FIG.
1 is an AC power supply, 32 is a converter for converting AC to DC, 33 is a smoothing capacitor for smoothing the DC output converted by the converter 32, and 34 is ON-OFF controlled by PWM control to control the armature voltage of the door motor 12. , A converter for converting AC into DC, 36 a field winding of the door motor 12, and 37 a DC current transformer mounted on the armature circuit.

Reference numeral 41 denotes a CPU; 42, a bus; 43, a ROM for storing processing programs and fixed data; 44, a RAM for temporarily storing processing data and input data;
Reference numeral 45 denotes an input / output port for inputting a door opening command signal and a door closing command signal from an elevator control panel 46 or a signal for adjustment by an external operation means 47, and 48 denotes a pulse generator 2
A pulse counter for counting the pulse signals from 3; 49, an armature current detection circuit for detecting the armature current from the DC current transformer 37; 50, a PWM signal for generating a voltage required to flow the armature current PWM circuit for generating
Is the DC chopper circuit 34 according to the signal of the PWM circuit 50.
Is a gate drive circuit that controls ON / OFF of the gate.

FIG. 3 is a block diagram showing the circuit diagram of FIG. 2 for each function. In the figure, the same reference numerals as those in FIGS. 1 and 2 denote the same parts, and 61 is a normal opening / closing command means incorporated in the elevator control panel 46, which commands opening / closing of the door under normal operation. Reference numeral 62 denotes a learning opening / closing command unit that is also incorporated in the elevator control panel 46 and causes the door control device to learn the door opening width and calculate the door speed pattern. Reference numeral 63 denotes a selection means for selecting between the normal opening / closing command means and the learning opening / closing command means, and selects the learning opening / closing command means when necessary, for example, when power transmission is restarted after a power failure or when commanded by the external operation means 47.

Reference numeral 65 denotes a learning means, which is a fully open position detecting means 66 and a fully closed position detecting means 67 for learning a fully open position or a fully closed position, and a door opening of the door panel 3 based on a difference between the fully open position and the fully closed position. The door opening width calculating means for calculating the width and the door speed pattern calculating means 69 for calculating a door speed pattern suitable for the door opening width. Here, the full-open position detecting means 66 drives the door panel 3 in the full-open direction at a constant speed based on the door opening command from the learning opening / closing command means 62 to make it hit the stopper 5a. Due to this impulse, a signal is not output from the pulse generator 23 even though the door opening command is issued, and the count value of the pulse counter 48 is kept constant for a predetermined time or more. This constant value is learned as the fully open position. The fully closed position detecting means 67 drives the door panel 3 in the fully closed direction at a constant speed based on the door closing command from the learning opening / closing command means 62 to cause the left and right door panels 3 to stop. Due to this impulse, the signal from the pulse generator 23 is not generated even though the door closing command is issued, and the count value of the pulse counter 48 is kept constant for a predetermined time or more. This constant value is learned as the fully closed position. In addition,
In order to make the fully open position coincide with the actual fully open position, the fully open position may be a predetermined distance before the stop position of the door panel 3 obtained by learning.

Reference numeral 70 denotes door position detecting means for detecting the current position of the door panel 3 from the current count value of the pulse counter 48 starting from the count value of the pulse counter 48 learned as the fully open position or the fully closed position. Reference numeral 71 denotes a door speed pattern generating means for issuing a speed command corresponding to the current position of the door panel 3 to the door motor 12 based on the door speed pattern calculated by the door speed pattern calculating means 69. This door speed pattern can be modified by the external operation means 47.

Reference numeral 72 denotes a pulse counter 4 per unit time.
A door speed detecting means 73 for detecting the actual speed of the door panel 3 from the count value of 8, a door speed control means 73 for controlling the door panel 3 to follow the speed command, and a 74 for controlling the door motor 12 to output a required torque. Torque control means, 76 is an armature current control means for controlling the armature current required to generate the required torque as compared with the armature current from the DC current transformer 37, and 77 is the armature current. The armature voltage command means for instructing the armature voltage, the PWM circuit 50 generates a PWM signal for generating the armature voltage based on the command, and the gate drive circuit 5
Reference numeral 1 controls ON / OFF of the gate of the DC chopper circuit 34 by the PWM signal.

Here, the setting of the door speed pattern in the door closing direction will be described with reference to FIG. The acceleration / deceleration α is determined by weighing a longer life of the door device and a shorter opening / closing time. The maximum speed is determined by comparing the opening / closing time and the impact when the tip of the door panel 3 hits a person. Based on the above determination, the acceleration / deceleration is set to α and the maximum speed is set to Vr. With the fully open position as the origin, the door speed pattern is a function of time from the fully open position to the distance Da. When the vehicle is accelerated at the acceleration α and the time T1 has elapsed, the maximum speed Vr is reached, the door is closed while maintaining the maximum speed Vr, and when the door is closed to the distance Da, deceleration starts.

From the deceleration start distance Da to the fully closed distance Dc, the door speed pattern is a function of the distance. The low speed Vc immediately before the fully closing is for suppressing the door stop sound of the door panel 3 when the door is fully closed, and is set to a low level so as not to be completely closed. The low speed Vc is set from the distance Db starting from the fully open position in consideration of the variation in the running resistance of the door on each floor. Therefore, the deceleration is started at a distance (Db-Da) required to decelerate from the maximum speed Vr to the low speed Vc at the deceleration α by the distance (Dc) at which the vehicle travels at the low speed Vc.
−Db) is closer than the fully closed position Dc by the distance obtained by adding −Db). That is, the deceleration distance (Db−Da) = (Vr ² −V)
Since c ² ) / (2α), the deceleration start point Da calculated from the fully open position is as follows: Da = Db− (Vr ² −Vc ² ) / (2α) (1)

The door speed pattern calculation means 69 calculates the door speed pattern according to the door opening width as described above. Needless to say, the deceleration start point Da varies depending on the door opening width, and the maximum speed Vr may not reach a fixed value. Also in this case, the maximum speed Vr is obtained by using the door closing speed at the start of the deceleration as the maximum speed Vr and the deceleration start point by the formula (1). Although the above description has been made on the door speed pattern in the door closing direction, the same applies to the door speed pattern in the door opening direction.

Next, the operation will be described with reference to FIG. The processing in FIG. 11 is performed based on an interrupt signal. When power is turned on, when power transmission is restarted after a power failure, or when a learning operation command is issued by manual operation, a learning operation mode is selected by the elevator control panel 46, and the illustrated processing is performed. In the case of the learning operation mode, the process proceeds from the step S11 to the step S12. When the fully open position learning flag is “L”, the process proceeds to the step S17 as learning is unnecessary. In the case of "H", the process moves to step S13 to learn the fully open position.

That is, in step S13, the door panel 3 is driven in a fully open direction at a constant low speed. When the door is fully opened, the door panel 3 is stopped by the stopper 5a, and the pulse signal is not generated from the pulse generator 23 even though the door opening command is issued. If the state in which the pulse signal is not generated continues for a predetermined time or more, the process proceeds from step S14 to step S15, where the count value of the pulse counter 48 is learned as the fully open position, and the flag is set to “L” in step S16 to learn the fully open position. finish. If a pulse signal is generated in step S14 and the count value of the pulse counter 48 fluctuates,
The processing after one end is interrupted, and the generation of the next interrupt signal is waited.

Steps S17 to S21 are for learning the fully closed position. When the fully closed position learning flag is "L",
The learning process ends as learning is unnecessary. In the case of "H", the fully closed position is learned. This process is the same as the above-described steps S13 to S16. That is, in step S18, the door panel 3 is driven at a constant low speed in the fully closed direction. When the doors are fully closed, the door panels 3 abut against each other, and no pulse signal is generated from the pulse generator 23 despite the door closing command being issued. If the state in which the pulse signal is not generated for a predetermined time or more continues, the process proceeds from step S19 to step S20, in which the count value of the pulse counter 48 is learned as the fully closed position, and the flag is set to “L” in step S21, and End the learning.

In step S22, the difference between the fully open position and the fully closed position obtained by learning is the door opening width. In step S23, the door speed pattern shown in FIG. 4 is calculated based on the door opening width, and in step S24, the process of terminating the learning operation is performed. Therefore, in the next interrupt signal, it is determined that the learning operation is not performed in step S11, and the door is opened and closed by the normal opening / closing command unit 61 in step S25. The normal opening / closing command means 61 determines in step S23 that the door speed pattern calculating means 6
9. The door is opened and closed according to the door speed pattern calculated by step 9.

According to the first embodiment, the door control device is replaced with an existing one, and the rope generator 21 is attached to the door end of the door panel 3 to operate the pulse generator 23.
With the simple repair work described above, the existing door motor 12, the speed reducer 11, and the link mechanisms 14 to 20 can be used as it is to repair the door device. For this reason, the renovation work becomes easy, and the work period can be shortened. Further, since the door opening width is learned and the door speed pattern is calculated according to the door opening width obtained by the learning, the door speed pattern can be easily set for different door opening widths. it can. Further, external operation means 47
Since the door speed pattern can be corrected by this, it is possible to perform control adapted to the actual situation. The transmitting means is a pulse generator 23 driven by the rope 21.
However, the tachometer may be integrated with and integrated with one roller 7 and rotate with the roller 7.

Embodiment 2 FIG. 6 shows a second embodiment of the present invention. In the drawings, the same reference numerals as those in FIGS. 1 to 5 denote the same parts, 81 is a fully open position detecting means that operates when the door panel 3 is at the fully open position, and 82 is the door panel 3
Fully closed position detecting means which is activated when is in the fully closed position, 8
Reference numeral 3 denotes a transmitting unit which is attached to the floor end of the car 1 and generates a laser beam or an ultrasonic wave and comprises a distance measuring device for measuring a distance from the door end of the door panel 3. By opening and closing the door panel 3 in the learning mode, the measured value of the distance measuring device 83 when the fully open position detecting means 81 is activated and the measured value of the distance measuring device 83 when the fully closed position detecting means 82 is activated. Thus, the difference value between them is calculated to obtain the door opening width, and the door speed pattern is calculated based on the door opening width. In normal operation, the actual speed of the door panel 3 is detected by differentiating the value measured by the distance measuring device 83, and the detected value is compared with the door speed pattern to control the door speed.

According to the second embodiment as well, the door control device is replaced with an existing one and the distance measuring device 83 is attached to the floor end of the car 1 as in the first embodiment. Can be renovated. For this reason, the renovation work is easy and the construction period can be shortened.
Further, since the door speed pattern is calculated in accordance with the door opening width obtained by learning, the door speed pattern can be easily set. Particularly, in the second embodiment, since the fully open position detecting means 81 and the fully closed position detecting means 82 are attached to directly detect the movement of the door panel 3, before the door panel 3 is stopped by the stopper 5a. Can be stopped. That is, the door panel 3 can be stopped in accordance with the actual fully open position and the fully closed position. Although both the sliding doors have been described in the first and second embodiments, the same applies to a single sliding door.

[0031]

Since the present invention is configured as described above, it has the following effects. The door device for an elevator according to claim 1, further comprising transmitting means for generating a signal corresponding to the movement of the door panel for opening and closing the entrance, and transmitting the signal from the transmitting means when the door panel is moved from the fully closed position to the fully opened position. The opening width is learned, a door speed pattern suitable for the door opening width is calculated, and the door motor is controlled in accordance with the door speed pattern to open and close the door panel. For this reason, when renovating to a method that controls the door motor according to the door speed pattern, the door control device can be replaced with the existing one, and the transmission means can be newly installed. It is possible to achieve the effect.

The elevator door device according to claim 2 is
Since the transmitting means is a pulse generator that generates a pulse signal in accordance with the movement of the door panel, there is an effect that the position and the opening / closing speed of the door panel can be easily detected.

The elevator door apparatus according to claim 3 is
The count value of the signal when the door panel is driven in the fully-closed or fully-opened direction until the signal from the transmitting means is not continuously emitted for a predetermined time or longer is learned as a fully-closed position or a fully-opened position, and is obtained by this learning. The door opening width of the door panel is calculated from the difference between the fully open position and the fully closed position. For this reason, there is no need to separately provide a detecting means for detecting the fully closed position or the fully opened position, and the construction period can be shortened.

The elevator door device according to claim 4 is
A door position detecting means for detecting a fully closed position and a fully opened position of the door panel is provided, and the fully closed position and the fully opened position are learned from a signal of the transmitting means when the door position detecting means is operated. The door opening width of the door panel is calculated from the difference between the position and the fully closed position. For this reason, there is an effect that the door panel can be stopped in accordance with the actual fully open position and the fully closed position without hitting the door panel with the stopper, and the door opening width can be calculated.

The elevator door device according to claim 5 is
The door speed pattern calculated by the learning means fluctuates as time elapses from a fully closed position or a fully opened position to a position just before a predetermined distance, and fluctuates with the distance from the predetermined distance to the fully closed position or a fully opened position. Things. For this reason, it can be stopped exactly at the fully open or fully closed position,
This has the effect of suppressing the door stop sound of the door panel.

The elevator door device according to claim 6 is
The door speed pattern can be changed by external operation means. For this reason, it is effective in being able to correct to the door speed pattern corresponding to each door device.

According to a method of repairing an elevator door device according to claim 7, an existing door control device for controlling the door motor is removed while leaving at least the door motor as an existing product, and a signal is issued in accordance with the movement of the door panel. After the transmission means is newly installed, the door opening width is learned from the signal emitted by the transmission means when the door panel is moved from the fully closed position to the fully open position, and a door speed pattern suitable for this door opening width is set to start the door motor. A speed control means for controlling is newly provided. Therefore, it is possible to easily attach a new door control device to an existing door device, easily set a door speed pattern, and shorten a repair period.

[Brief description of the drawings]

FIG. 1 is a front view of an elevator door device according to a first embodiment of the present invention.

FIG. 2 is a circuit diagram of the door control device according to the first embodiment of the present invention.

FIG. 3 is a block diagram showing the circuit diagram of FIG. 2 for each function.

FIG. 4 is an explanatory diagram showing a door speed pattern.

FIG. 5 is a flowchart showing the operation of the door device according to the first embodiment of the present invention.

FIG. 6 is a circuit diagram of a door control device according to a second embodiment of the present invention.

[Explanation of symbols]

1 car, 2 doorway, 3 door panel, 4
Beam, 5 rail, 5a stopper 6 door hanger, 7 roller, 11 reduction gear, 12 door motor, 21 rope, 22 weight, 23 pulse generator, 24 door control device, 46 elevator control panel, 47 external operation means, 61 normal opening / closing command Means, 62 learning opening / closing command means, 63 selecting means,
65 learning means, 66 fully open position detecting means, 67
Fully closed position detecting means, 68 Door opening width calculating means, 69
Door speed pattern calculating means, 70 door position detecting means, 71 door speed pattern generating means, 72 door speed detecting means, 73 door speed controlling means, 81 fully open position detecting means, 82 fully closed position detecting means, 83 distance measuring means.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E052 AA08 CA06 DA05 DB05 EA15 EA16 EB01 EC03 GA06 GA08 GA10 GB12 GB13 GB15 GD06 GD07 KA01 KA08 KA13 KA15 KA16 3F305 DA15 3F307 AA02 EA21

Claims (7)

[Claims] In an elevator door apparatus that opens and closes a doorway by driving a door panel with a door motor, a transmitting means for issuing a signal corresponding to the movement of the door panel, and the door panel is moved from a fully closed position to a fully opened position. An elevator which learns a door opening width from a signal of the transmitting means at the time and calculates a door speed pattern adapted to the door opening width; and a speed control means which controls the door motor according to the door speed pattern. Door equipment. 2. The elevator door apparatus according to claim 1, wherein the transmitting means is a pulse generator that generates a pulse signal in accordance with movement of the door panel. 3. The learning means calculates the count value of the signal when the door panel is driven in the fully closed direction or the fully opened direction until the signal from the transmitting means is not continuously emitted for a predetermined time or more. The elevator door apparatus according to claim 1, wherein the door opening width of the door panel is calculated from a difference value between the fully open position and the fully closed position obtained by the learning. 4. The learning means includes a full-close position detecting means and a full-open position detecting means which are activated when the door panel is at a fully-closed position and a fully-open position, respectively, and a transmitting means when the fully-closed position detecting means is activated. From the signal from the transmitting means when the fully open position detecting means is activated, and the fully closed position obtained by this learning. The elevator door device according to claim 1, wherein a door opening width of the door panel is calculated from a difference value between the door panel and the fully open position. 5. The door speed pattern calculated by the learning means fluctuates as time elapses from a fully closed position or a fully open position to a position just before a predetermined distance, and from the predetermined distance to the fully closed position or the fully open position together with the distance. The elevator door device according to claim 1, wherein the door device is variable. 6. The elevator door apparatus according to claim 1, wherein the door speed pattern calculated by the learning means can be changed by external operation means. 7. A method of repairing an elevator door device that opens and closes an entrance by driving a door panel with a door motor, wherein at least the door motor is left as it is.
Removing the existing door control device for controlling the door motor, newly installing a transmitting means for issuing a signal in accordance with the movement of the door panel, and moving the door panel from the fully closed position to the fully open position. A door control device comprising: learning means for learning a door opening width from a signal emitted from a transmitting means and calculating a door speed pattern adapted to the door opening width; and speed control means for controlling the door motor according to the door speed pattern. A learning step of causing the learning means of the newly installed door control device to learn the door opening width to calculate the door speed pattern, and a door speed pattern calculated by the learning step. Controlling the door motor with the speed control means.