JPH07208018A - Setter for position of limit in electric opening-closing body for construction - Google Patents

Abstract

PURPOSE:To attain accurate setting by outputting a low-speed driving command preset as speed at the time of limit setting to a motor when an opening-closing control switch is operated under the state, in which a mode is changed over to a limit setting mode. CONSTITUTION:A door body is opened and closed discretely by the operation of opening-closing push-button switches 16, 17 at the time of a limit-setting mode changeover switch 31 in an operation control mode and an operation- control mode changeover switch 19 in a individual-operation control mode. The door body is opened and closed automatically on the basis of the detection of first and second body detecting sensors 12, 13 at the time of an automatic operation mode. The places of each limit of full closing and full opening is set at the time of the switch 31 in a limit setting mode. The door body is moved at specified low speed preset as speed at the time of limit setting only for a time when an operator pushes and operates the switches 16, 17 at that time. Accordingly, the place of a limit can be set accurately even in the door body opened and closed and moved at high speed at the time of individual operation or automatic operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a limit position setting device for an electric opening / closing body for construction such as a construction shutter, a hinged door or a sliding door, which is built in an opening of a construction such as a building.

[0002]

BACKGROUND OF THE INVENTION Generally,
When performing the opening / closing control of the electric opening / closing body in this way, it is necessary to detect that the door body has come to the midway position when the fully open position, the fully closed position, and the midway stop position are set. Therefore, each corresponding limit switch means is provided.

In providing such a limit switch means, a switch such as a micro switch may be provided as a limit switch on the side of the body. However, in this case, the switch is easily exposed to wind and rain, is inferior in durability, and is frequently used. Maintenance is required. Therefore, it has been conventionally attempted to provide the limit switch means on the side of the switch which is not exposed to the wind and rain by performing the limit switch means by counting the drive amount of the switch, for example.

However, in such an electrically-operated opening / closing body, the size of the opening is different for each building (the opening width is rarely as designed). After the body is built, the door is opened in the fully open position by driving the opening / closing device. Conventionally, however, since the switch moves at the same speed as the normal opening / closing speed even when the limit is set, it is practically difficult to stop the door at the desired stop position where the limit is set. There is a problem of being done.

[0005]

SUMMARY OF THE INVENTION The present invention was devised with the object of providing a limit position setting device for an electrically-operated opening / closing body for construction, which can eliminate these drawbacks in view of the above circumstances. Then, in the electric opening / closing body for construction that opens and closes the opening by moving the door body based on the forward and reverse driving of the electric motor, the opening and closing operation control command is output to the drive control mechanism that controls the drive of the electric motor. When the open / close operation switch is operated while the mode is switched to the limit setting mode for setting the operation control mode and the limit setting mode, the limit setting mode is set for the motor. A limit setting speed control means for outputting a low speed drive command preset as a speed is provided. Further, in this configuration, the limit setting speed control means is set so as to output a drive command for a speed during limit setting only while the opening / closing operation switch is ON. Also,
The drive control mechanism is characterized in that it is provided with mode switching limiting means for limiting mode switching to the open / close control mode at least when the limit settings for the fully open and fully closed positions are not set.

According to the present invention, the door body can be surely stopped at the position corresponding to the limit setting even if the door body is moved at a high speed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a hanger type door device which is built to open and close a large opening of a warehouse, a factory, etc., and a door body 1a constituting the door device 1 has two left and right doors in this embodiment. A pair of left and right brackets 2 are planted at the upper ends of these doors 1a, and a hanger roller 3 is rotatably supported by the brackets 2. The door body 1a is moved left and right by rolling while the hanger roller 3 is guided by the hanger rail 4 laid on the body side.

A connecting rod 5 is supported between the upper ends of the pair of left and right brackets 2 planted in the door body 1a. The pressure receiving piece 5a is erected upward. On the other hand, on the body side, a long stator 6 is integrally laid above the hanger rail 4 and
Has a generally U-shaped cross section, and N
Permanent magnets 7 having poles-S poles alternately arranged in the longitudinal direction of the stator 6 are fixed. Reference numeral 9 is a mover around which the armature coil 8 is wound, and the mover 9 is movable in the left-right direction to the stator 6 while facing the permanent magnet 7 with a slight air gap. It is fitted. Furthermore, 9
Reference numeral a denotes a pressing body fixed to the lower end of the mover, and a fitting groove 9b is formed in the middle of the pressing body 9a.
The press receiving piece 5a on the door body 1a side is fitted in the fitting groove 9b in a state having a slight play. Then, a current flows through the armature coil 8 based on a command from a control unit 10 which will be described later, whereby the mover 9 moves left and right, and the pressing body 9a that moves integrally with the mover 9 presses the pressing receiving piece 5a. As a result, the door body 1a is configured to move to the left and right, whereby the door body 1a is configured to open and close in the left and right directions by the linear motor type drive mechanism, and the switch 27 described later is configured. .

On the other hand, 11 is an obstacle detection sensor,
In the present embodiment, a contact type switch such as a tape switch is used, but it is attached to the door end side surfaces of the left and right door bodies 1a (sides that contact each other when fully closed), and the door body 1a door It is designed to detect when an obstacle hits the front side surface. Further, 12 and 13 are first and second object detection sensors, in this embodiment, a photoelectric switch is used for the first object detection sensor 12, and an ultrasonic detection sensor is used for the second object detection sensor 13. When an object such as a vehicle or a person approaches the opening, they are detected. Then, the first object detection sensor 12 is set to detect static and dynamic objects near the opening, and the second object detection sensor 13 is set to detect a dynamic object at a position slightly apart from the opening. Furthermore, 14 is a door 1a
There is a door position detecting sensor provided on the mover 9 to detect the position of the door, and the door position detecting sensor 14 in this embodiment is a magnetic encoder using a hall element.

Although the control unit 10 is constructed by using a microcomputer, as shown in the block circuit diagram of FIG. 8, the control unit 10 is provided with an open / close control provided on a control panel 15 provided on the body side. Push button switches 16 and 17 (the push button switches 16 and 17 are provided for each door body, and in the present embodiment, there are one for the left door body and one for the right door body), and an emergency stop push button switch. 18, limit setting mode changeover switch 31, operation control mode changeover switch 19, return switch 20, overload detection sensor 21, overtime detection sensor 22, inspection switch 23, fully open setting switch 24, fully closed setting switch 25, half open position setting The switch 26, the automatic start switch 30, the fully open / half open switch 32, the operation counter 34, and the obstacle detection sensor 11 First, the second object detection sensor 1
Various switches and sensors such as 2, 13 and the door position detecting sensor 14 are connected to the device, and signals from these are input. Then, the control unit 10 issues a necessary control command based on these input signals to the switch 2
7 and the limit setting display means 2 described later.
8 and various informing means 29 for lamp and buzzer throwing are informed.

The limit setting mode changeover switch 31 can be switched between the limit setting mode and the operation control mode by operating the switch 31, and serves as a first mode changing means. . On the other hand, the operation control mode changeover switch 19 constitutes a second mode changeover means, which opens and closes the door body 1a individually based on the operation of the open / close push button switches 16 and 17. A switch for switching between the individual operation mode when performing the operation and each operation control mode of the automatic operation mode when automatically opening and closing the door 1a based on the detection of the first and second object detection sensors 12 and 13. The operation control mechanism in each of these modes will be described later.

The fully open / half open switch 32 is
By operating the switch 32 to the half open side, the door body 1
Is set to be controlled to stop at the half open position set by the half open position setting switch 26 instead of the fully open position. Further, the operation number counter 34 counts the number of times the door 1 is opened and closed. On the other hand, the overload detection sensor 21 is for detecting an overload acting on the switch 27, and the overtime detection sensor 22 is for the opening / closing operation time of the door body 1a for a predetermined time (for example, 30 seconds).
It is to detect that the door body 1a is not fully opened or fully closed even if it exceeds the second), and the inspection switch 23 is a switch for stopping the door body 1a at an arbitrary position for the operator to inspect. The inspection side and the operation side can be switched.

Next, the open / close operation control of the door 1a by the control unit 10 will be described with reference to the flow chart shown in FIG. First, when power is supplied and initialization is performed, the control unit 10 switches the mode changeover switches 31 and 1 to 1.
It is judged which mode 9 is switched to.

When it is determined that the limit setting mode changeover switch 31 is in the operation control mode and the operation control mode changeover switch 19 is changed to the individual operation mode, the control unit 10 then fully opens. , It is determined whether or not the fully closed limit position is set. When it is determined that the limit position has been set, the individual operation mode control state is entered, and the door body 1a can be individually opened and closed by operating the open / close push button switches 16 and 17. In the opening / closing operation of the door body 1a in the individual operation mode control, when the open push button switch 16 is operated, an open signal is output and the door body 1a is output.
a is controlled to be opened up to the fully open position, and the close push button switch 1
When the door body 1a is operated, the door body 1a is controlled to be closed to the fully closed position. During the opening / closing operation of the door body 1a, the corresponding notification means 2
The notification by 9 is performed. The timing chart of FIG. 10 shows the relationship between the open / closed position of the door 1a and each signal during the opening / closing operation. In FIG. 10, if the emergency stop push button switch 18 is operated during the opening / closing operation of the door body 1a,
As shown by, the output of the open (closed) signal is stopped, the door body 1a is decelerated and stopped, and the notification by the corresponding notification means 29 is performed, but the door body 1a stopped by the operation of the emergency stop push button switch 18 Is set so that the opening / closing operation cannot be resumed unless the emergency stop push button switch 18 is reset.

On the other hand, when the detection signal from the first object detection sensor 12 is input during the closing operation of the door body 1a, the door body 1a decelerates and stops as indicated by. Then, the stopped state is maintained until either the open or close push button switch is operated. When the detection signal from the second object detection sensor 13 is input during the closing operation of the door body 1a and the detection is within a predetermined time T ₁ (for example, 2 seconds), the door body 1a is After the deceleration stop, the closing is restarted, but when the predetermined time T ₁ is exceeded, the door body 1a reverses and rises to the fully open state after the deceleration stop as shown by. Then, after a predetermined timer time T ₂ has passed, the descent is controlled to restart.

Further, when a detection signal from the obstacle detection sensor 11 is input during the closing operation of the door body 1a, it is necessary to make an emergency stop. In this case, as shown by, Instead, an open signal is immediately output, and after emergency deceleration stop, it immediately reverses and opens, stops at the fully open position, and is notified by the corresponding notification means 29. In this way, the obstacle detection sensor 11 detects the obstacle. Based on this, the door body 1a that is fully opened is set so that it cannot be closed until the return switch 20 is operated. Further, when the inspection switch 23 is switched to the inspection side, the door body 1a is stopped and the corresponding notifying means 29 gives a notification. In this case,
The door 1a cannot be opened and closed until the inspection switch 23 is switched to the driving side. Furthermore, when the detection signal from the overload detection sensor 21 or the overtime detection sensor 22 is input, the door body 1a is stopped and the corresponding notification means 29 performs the notification, but also in this case. The door 1a cannot be opened or closed until the return switch 20 is operated.

On the other hand, when it is determined that the limit setting mode changeover switch 31 is in the operation control mode and the operation control mode changeover switch 19 has been changed to the automatic operation mode, the control unit 10 automatically starts. It is determined whether the switch 30 is ON. If it is determined to be ON, then the inspection switch 23 is switched to the driving side, whether or not the limit positions of fully open and fully closed are set, and the emergency stop push button switch 18 is set. Overload detection sensor 2
1, each of the overtime detection sensor 22 and the detection signal from the obstacle detection sensor 11 is determined. Then, the limit position is set, the emergency stop push button switch is set, the inspection switch 23 is switched to the driving side, and the detection sensors 21, 22,
When it is determined that the detection signal from 11 is not input,
While in the automatic operation mode subroutine control state,
The corresponding informing means 29 informs that the vehicle is in automatic operation.

In this automatic operation mode control state,
The door body 1a cannot be opened / closed by the open / close push button switches 16 and 17, and the first and second object detection sensors 12 and 1
The automatic opening / closing operation is performed based on the detection signal from 3. In this case, when the door body 1a is closed (fully closed), a detection signal from the first object detection sensor 12 is input, or the second object detection sensor 1
When the detection signal from 3 is continuously input for a predetermined time (for example, 0.8 seconds) or more, the door body 1a is controlled to open to the fully open position. After the full opening, if the detection signals from both the first and second object detection sensors 12 and 13 are not input for a predetermined time (for example, 3 seconds), the door body 1a is controlled to be closed to the fully closed position. When the detection signal from the first object detection sensor 12 is input during this closing operation, the door body 1a decelerates for a predetermined time (for example, 2 seconds), then reverses and opens. On the other hand, when the detection signal from the second object detection sensor 13 is input during the closing operation of the door body 1a,
When the detection time is less than the predetermined time (for example, 2 seconds), the door body 1a is decelerated for the predetermined time and continues to close again, but when the detection time exceeds the predetermined time, the door 1a is reversed and opened.

As described above, the door body 1a opened on the basis of the detection signals from the first and second object detection sensors 12 and 13 during the closing operation of the door body 1a has the first and second object detections after fully opened. When the detection signals from both the sensors 12 and 13 are not input for a predetermined time, the sensors are closed again. Further, in the automatic operation mode control state, when the emergency stop push button switch 18 is operated, when the inspection switch 23 is switched to the inspection side, the obstacle detection sensor 11, the overload detection sensor 21,
When the detection signal from the overtime detection sensor 22 is input, the same control as in the subroutine control state of the individual operation mode is performed.

Further, when it is judged that the limit setting mode changeover switch 31 is switched to the limit setting mode, the limit setting operation mode is brought into the subroutine control state and the limit setting display means 28 is in the process of setting the limit. Indication of that (in the embodiment, the limit setting indicator light blinks (lights for 0.5 seconds, 0.
Repeatedly turning off the light for 5 seconds). ) Is done. In this limit setting operation mode control state, only the individual movement of the door body 1a can be performed by operating the open / close push button switches 16 and 17, but in this case, the operator operates the open / close push button switches 16 and 17. The door body 1a is set to move only while the push operation is performed, and the moving speed of the door body 1a at this time is a predetermined low speed preset as a speed during limit setting (a low speed at which opening / closing movement can be controlled). Speed).

When setting the fully open limit position, the open / close push button switches 16 and 17 are pressed to
The door body 1a is moved to a desired fully open position. When the full-open setting switch 24 is turned on at that position, the control unit 10 stores the full-open limit position. On the other hand, when the fully closed limit position is set, the door 1a is moved to a desired fully closed position and the fully closed setting switch 25 is turned on at that position, similarly to the setting of the fully open limit position. The fully closed limit position is stored in the control unit 10. still,
If necessary, when setting the deceleration start position during the closing operation of the door body 1a, the fully closed setting switch 25 is continuously turned ON twice within a predetermined time (for example, 2 seconds) at the desired deceleration start position. As a result, the deceleration start position is stored in the control unit 10. Further, if necessary, when setting the half open position when it is desired to stop the door body 1a in the half open state, the door body 1a is moved to a desired half open position, and the half open position setting switch 26 is turned on at the position. When operated, the half-open stop position is stored in the control unit 10. Incidentally, the storage of these limit positions is set in the control unit 10 so as to be lost when the power supply is cut off due to a power failure or the like.

During the limit setting operation mode control, when the door 1a is closed, the emergency stop push button switch 18,
When the inspection switch 23 is operated and when the detection signals from the overload detection sensor 21, the first and second object detection sensors 12 and 13 are input, the close push button switch 1
Even if 7 is pressed, the door body 1a cannot be closed. Further, the obstacle detection sensor 11 and the overtime detection sensor 22 are set not to operate. By the way, after setting each required position as described above,
When the limit setting mode changeover switch 31 is switched to the operation control mode side, the limit setting display means 28 displays that the limit position has been set (in the embodiment, the limit setting indicator lamp goes off). Although the limit setting mode is changed to the operation control mode, in this case, the limit setting mode switching 31 is operated and controlled in a state where one or both of the full open limit position and the full closed limit position are not set. Even when the mode is switched to the mode side, the limit setting display means 28 displays that the limit position is not set (in the embodiment, the limit setting indicator lamp is lit), and the individual operation control mode and the automatic operation are performed. The setting is such that the transition to the control mode is not performed.

When the door 1a is opened and closed,
The switch 27 composed of a linear motor is subjected to drive speed control shown in FIG. That is, during the period from the start up to the time t ₁ , the speed increasing control is performed and the moving speed gradually increases to the speed V. During this time t ₁ until a time t ₂ just before reaching the limit position, constant speed movement control is performed at the speed V, and from the time t ₂ to the time t ₃ reaching the limit position, the minimum speed is reached. After the deceleration control is performed until the state is reached, the vehicle is controlled to move to the limit position and stop in the lowest speed state (the lowest speed state in which the door body 1a can be moved). In the embodiment, the lowest speed is set to be the speed at limit setting. Of course, the times t ₁ and t ₃ can be changed in length by adjusting the acceleration acceleration and deceleration acceleration. By the way, in the timing chart of FIG. 10, among the lines showing the door body position, the thick line portions show the speed-up control and deceleration control portions. Emergency stop push button switch 1
When 8 is pressed, control is performed so that the emergency stop is performed as it is, as indicated by a virtual line, without passing through the lowest speed state. In addition, when the obstacle detection switch 11 detects, the reversal control for immediately switching from the closed signal to the open signal is performed, but the deceleration / deceleration and ascending / accelerating control is also performed for this.

In the embodiment of the present invention configured as described above, when the limit setting mode switch 31 is switched to the operation control mode, and the operation control mode switch 19 is in the individual operation control mode. When the door is open, the door 1a can be opened and closed individually by operating the open / close push button switches 16 and 17, and when the automatic operation mode is selected, the first and second object detection sensors 12 and 13 are detected. It is possible to automatically open and close the door 1a based on the object detection.

On the other hand, when the limit setting mode changeover switch 31 is switched to the limit setting mode, it is possible to set the limit positions of fully closed and fully opened. In this limit setting mode control state, The door body 1a is opened and closed by the operator.
Only while the buttons 6 and 17 are being pressed, the vehicle moves at a predetermined low speed that is preset as the speed during limit setting. As a result, the door body 1a moves at a low speed when the limit position is set, even if the door body 1a is opened and closed at high speed during the individual operation or the automatic operation, so that the door body 1a can be reliably moved to the desired limit position. It will be possible to stop at this time, and it will be possible to set the accurate limit position.

Further, in this structure, the deceleration start position at the closing operation of the door body 1a can be arbitrarily set. Therefore, by setting the deceleration start position of the door body 1a before full closing earlier, It is possible to effectively prevent a person or the like from being caught between the left and right door bodies 1a.

Moreover, in this configuration, in a state where the limit positions of fully closed and fully open are not set, even if the limit setting mode changeover switch 31 is in the operation control mode, any one of the operation control modes is set. It is restricted that the subroutine control state of the operation control (automatic operation control or individual operation control) is restricted, and in this embodiment, the limit setting display means 28 indicates that the limit setting is not made and the open / close push button switch 16 , 17 is controlled so that the door 1a does not move to open or close and remains stopped. As a result, if the previously stored data on the fully closed and fully open limit positions are lost due to a power failure, etc., it is necessary to set the fully closed and fully open limit positions when restarting operation. However, in that case, even if the limit setting mode changeover switch 31 remains in the operation control mode, the door body 1a is not opened or closed individually or automatically, so that the limit setting is performed. It is convenient for safety because the careless opening and closing of the door body 1 is prohibited in the state where the door is not closed. In addition, in the present embodiment, after the power supply to the control unit 10 is cut off due to a power failure or the like, the data is lost and the limit position setting is prompted again. If the data is misaligned by moving with, the self-judgment of the set positions of the fully open and fully closed limit positions is fixed in advance (fixed as non-volatile memory) (for example, set at factory shipment). It does not happen that the opening and closing operation based on this is suddenly performed after returning to the one that was done) and is excellent in safety.

The present invention is not limited to the above-mentioned embodiment, and the operation control mode may be either one of automatic control and individual control, and is generally known. Of course, another opening / closing operation control may be used. Further, as the door body, it is not a sliding door, it can be used for an opening and closing operation of a shutter curtain of an electric shutter for construction, an electric opening and closing door for an appropriate construction, and a linear driving source of the opening and closing door body. Not limited to the motor, the switch may include a general-purpose electric motor.

Further, the present invention can be realized as shown in the flow chart of the second embodiment shown in FIG. In other words, in this one, the limit setting mode changeover switch and the operation control mode changeover switch of the first embodiment use a three-point changeover type mode changeover switch 33 which can be formed by one switch changeover. When no setting is made, when the mode changeover switch 33 is in either one of the automatic operation mode and the individual operation mode, and when any one of the open / close pushbutton switches 16 and 17 is pressed, the push operation is performed. Open / close corresponding to low speed operation (Whether it is the same as the speed at limit setting or not, but at a speed slow enough to control the movement of the door by pressing the switch. It must be set) so that mode control can be performed, and by doing so, limit settings can be made. When no mode selection switch 33 is there convenient advantage so that it is slow moving one by one by manual door body 1a also do not limit setting mode.

[0030]

In summary, since the present invention is configured as described above, when the mode switching means is set in the limit setting mode and the limit is set, the door is opened and closed by operating the open / close operation switch. Then, it is possible to set the limit to the desired limit position and set the limit based on this, but since the moving speed to this limit position is the predetermined low speed preset as the speed at the time of limit setting, it is usually Even if it is a building electric opening / closing body that opens and closes at a high speed when the opening and closing operation is performed, it will move at a low speed that makes it easy to stop and control when setting the limit position, so that the door can be reliably moved to the desired limit position. It will be possible to stop at this time, and it will be possible to set the accurate limit position.

[Brief description of drawings]

FIG. 1 is a schematic front view of a door device.

FIG. 2 is a schematic plan view of a door device.

FIG. 3 is a schematic side view of a door device.

FIG. 4 is an enlarged front view of a main part of the door device.

FIG. 5 is an enlarged view of a pressing body portion.

FIG. 6 is an enlarged side sectional view of an essential part showing a hanger portion of the door device.

FIG. 7 is a front view of a control panel.

FIG. 8 is a block circuit diagram of a control device.

FIG. 9 is a flowchart of the first embodiment of the control system.

FIG. 10 is a timing chart of an individual operation control routine.

FIG. 11 is a graph showing a drive control state of a linear motor.

FIG. 12 is a flow chart of a second embodiment of the control system.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Door device 1a Door body 2 Bracket 3 Hanger roller 4 Hanger rail 5 Connecting rod 6 Stator 7 Permanent magnet 8 Armature coil 9 Mover 10 Control part 11 Obstacle detection sensor 12 First object detection sensor 13 Second object detection sensor 14 Door position detection sensor 15 Control panel 16 Open push button switch 17 Close push button switch 18 Emergency stop push button switch 19 Operation control mode changeover switch 22 Overtime detection sensor 23 Inspection switch 24 Full open setting switch 25 Full closed setting switch 26 Half open position setting switch 27 Switch composed of linear motor 28 Limit setting display means 31 Limit setting mode changeover switch of the first embodiment 33 Mode changeover switch of the second embodiment

Claims (3)

[Claims] 1. An electric opening / closing structure for a building that opens and closes an opening by moving a door body based on forward / reverse driving of an electric motor. A mode switching means capable of switching between the operation control mode for outputting and the limit setting mode for setting the limit position, and a limit for the electric motor when the open / close operation switch is operated in the state of being switched to the limit setting mode. A limit position setting device for an electric open / close structure for a building, comprising limit setting speed control means for outputting a low-speed drive command preset as a setting speed. 2. The building according to claim 1, wherein the limit setting speed control means is set so as to output a drive command of a speed during limit setting only while the opening / closing operation switch is ON. Limit position setting device for electric opening and closing body. 3. The drive control mechanism according to claim 1,
A limit position setting device for an electrically-operated opening / closing body for construction, comprising mode switching limiting means for limiting mode switching to an open / close control mode at least when the limit settings for the fully open and fully closed positions are not set.