JP5276415B2 - Switchgear - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening/closing device capable of preventing an opening/closing body in closing operation from not being not stopped in a regular totally-closed position due to the occurrence of power interruption or the like. <P>SOLUTION: An integrated value of pulse signals from a pulse transmission device 36 from a small window totally-closed seating position to a small window fully-opened seating position is stored beforehand as a closing operation limiting threshold. On condition that there is a change in output signals of a small window fully-opened seating position sensing means 40 during the opening operation of the opening/closing body 10, the opening/closing body 10 is put in closing operation, and on condition that the integrated value of the pulse signals has become the closing operation limiting threshold during the closing operation, the closing operation is stopped. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an opening / closing device such as a shutter device including an overhead door, and more particularly to an opening / closing device in which an opening / closing body position is grasped by an integrated value of a pulse signal.

Conventionally, in this type of invention, for example, as described in Patent Document 1, a pulse transmission device (encoder device 35) that outputs a pulse signal in accordance with an opening / closing operation of an opening / closing body, and an integrated value of the pulse signal There is a switchgear provided with a storage device for storing as a variable.
In this opening / closing apparatus, during the closing operation of the opening / closing body, it is determined that the opening / closing body is in the fully closed position by the fact that the pulse integrated value exceeds a preset full-closing determination comparison value. The operation is stopped.
The full-close determination comparison value is set by, for example, an initial setting operation immediately after the opening / closing device is installed on the site. An example of the initial setting operation will be described in detail. First, the pulse integrated value is reset at the fully open position of the opening / closing body. After that, if the operator performs a closing operation of the opening / closing body and visually confirms that the closing direction end of the opening / closing body is seated on a seating target site (for example, the ground, a floor surface, a frame member, etc.), the opening / closing body And the integrated value of the pulse from the fully open position to the fully closed position is used as a comparison value for the fully closed determination by performing a special operation such as simultaneously pressing the three buttons of the open / close stop. Remember me.
Next, the operator performs a confirmation operation as to whether or not the opening / closing body in the closed operation normally stops at the fully closed position. More specifically, after the opening / closing body is slightly opened by the opening button operation, the opening operation is stopped by the stop button operation, and then the opening / closing body is closed by the closing button operation. Then, the opening / closing body in the closing operation stops the closing operation on the condition that the pulse integrated value is equal to or greater than the full-close determination comparison value.

However, if a power failure occurs before or during the confirmation operation, the pulse integrated value may not reflect the actual opening / closing body position. That is, even if the accumulated pulse value is stored in a nonvolatile memory or the like during the power failure and is not erased, if the opening / closing body is manually opened during the power failure, for example, the accumulated pulse value is The value of full opening is shown rather than the actual opening / closing body position.
When the confirmation operation is performed in such a state, even if the open / close body during the closing operation is in the fully closed position, the pulse integrated value does not become equal to or greater than the comparison value for the full closing determination. Does not stop, and an excessive compressive load may be applied to the opening / closing body, or the opening / closing body may be wound backward on the take-up shaft.
Even during normal operation other than during the confirmation operation, if a power failure occurs, the pulse integrated value may be a value that does not reflect the actual opening / closing body position. There is a possibility that the opening / closing body during the closing operation may stop abnormally without stopping at the normal fully closed position.
JP 2006-307493 A

  The present invention has been made in view of the above-described conventional circumstances, and the problem to be solved can prevent the opening / closing body during the closing operation from being stopped at the normal fully closed position due to the occurrence of a power failure or the like. The object is to provide a switchgear.

The technical means for solving the above-mentioned problem is that the opening / closing body having a small window is extended from the storage portion to perform a closing operation, and the closing direction end portion of the opening / closing body is pressed against the seating target portion. An opening / closing device for closing the small window from an open state by pressure, wherein the small window is substantially fully opened, and the closing direction end of the opening / closing body is in contact with or close to the seating target site. An opening / closing device in which the closing direction end of the opening / closing body is in contact with the seating target site in a state where the small window is substantially fully closed. A pulse transmission device that emits a pulse signal in accordance with the operation, an integration unit that integrates the pulse signal transmitted by the pulse transmission device, and an output when the opening / closing body passes through the small window full-open seating position in the opening direction Small to change signal A fully-opening / sitting position sensing means; and a control unit that controls an opening / closing operation of the opening / closing body, wherein the control unit is an integrated value of the pulse signal from the small window full-closed seating position to the small window full-opening seating position. Is stored in advance as a closing operation restriction threshold, and the control unit controls the opening / closing body on the condition that the output signal of the small window full-opening / sitting position sensing means has changed during the opening / closing operation of the opening / closing body. A closing operation is performed, and the closing operation is stopped on the condition that the integrated value of the pulse signal during the closing operation becomes the closing operation restriction threshold.
According to this technical means, the output signal of the small window full-opening seating position detecting means changed during the opening operation of the opening / closing body during the confirmation operation for confirming whether the opening / closing body during the closing operation stops at the fully closed position. In this case, the opening / closing body automatically starts the closing operation. Then, the closing operation stops when the integrated pulse value becomes the closing operation restriction threshold. That is, according to the above operation, the open / close body is closed and stopped from the small window full open / seat position to the small window full closed / seat position. Therefore, even if a power outage occurs and the pulse integrated value does not reflect the actual opening / closing body position, the opening / closing body when the closing operation is performed is stopped at the normal small window fully closed seating position. be able to.
In addition, even during normal operation other than during the confirmation operation, when the opening / closing body is in the vicinity of the small window full-closed seating position and the output signal of the small window full-open seated position sensing means changes during the opening operation, etc. The opening / closing body can be automatically closed to stop at the normal small window fully closed seating position.

In a further technical means, an opening / closing device storing an opening / closing body position variable indicating an integrated value of the pulse signal and indicating a position in an opening / closing direction of the opening / closing body, wherein the opening / closing body is stopped during the stop of the closing operation. The position variable is a value indicating that the opening / closing body is at the small window full-closed seating position, and is updated to a preset pulse value for determining the small window full-closed seating position. .
According to this technical means, after the closing operation of the opening / closing body is stopped by the threshold value for closing operation restriction, a preset pulse value for determining the small window full closing / sitting position is used as the opening / closing body position variable during the stop. Remembered. Therefore, in the subsequent operations, the opening / closing body position variable can be used as a value reflecting the actual opening / closing body position.

  In a further technical means, the closing operation restriction threshold is set to open the opening / closing body from a small window full-closed seat position to a small window full-open seat position by a predetermined initial setting operation. The integrated value of the pulse signal is a stored value.

  In the opening / closing apparatus according to the present invention, the opening / closing body is wound around the winding shaft and stored, or the opening / closing body is stored in the opening direction side without being wound around the winding shaft. Including embodiments.

In the present specification, the “opening / closing body thickness direction” means the thickness direction of the opening / closing body in the closed state.
In the present specification, the “opening / closing body width direction” means a direction that is substantially orthogonal to the opening / closing direction of the opening / closing body and not the thickness direction of the opening / closing body.
Further, in this specification, the “opening / closing body opening / closing direction” means a direction in which the opening / closing body slides to partition or open the space.

Since the present invention is configured as described above, the following effects can be obtained.
Even if the pulse integrated value does not reflect the actual opening / closing body position, the closing operation of the opening / closing body can be stopped at the normal small window full-closed seating position.
Therefore, it can prevent that the opening-closing body in closing operation does not stop in a regular fully closed position by generation | occurrence | production of a power failure etc.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
An example of the opening / closing device according to the present embodiment is disposed in or inside an opening part or inside of a housing such as a house, building, warehouse, factory, underground shopping center, tunnel, vehicle loading platform, etc. Although it can be applied as a shutter device for partitioning or opening a space, a mode used as a window shutter device will be described as a particularly preferable mode.

The opening / closing device 1 includes an opening / closing body 10 that is drawn out from the storage portion 31 and performs a closing operation, a guide rail 20 that surrounds an end portion in the width direction (left-right direction in FIG. 1) of the opening / closing body 10 and guides the opening / closing direction. A winding device 30 that winds and unwinds the opening / closing body 10, and makes the closing direction end of the opening / closing body 10 abut on a seating target site p (for example, a floor surface, the ground, a frame member, etc.). The plurality of small windows 11a11 provided in the opening / closing body 10 are changed from the open state to the closed state by the pressing force when pressed.
In the present embodiment, the state in which the end in the closing direction of the opening / closing body 10 is substantially in contact with the seating target site p (including a case where a slight gap is generated) in a state where the plurality of small windows 11a11 are substantially fully opened. A state in which the end portion in the closing direction of the opening / closing body 10 is in contact with the seating target portion p in a state where the small window 11a11 is substantially fully closed is referred to as a full window seating position (the state shown in FIG. 1A). This is referred to as a closed seating position (state shown in FIG. 1B).

  The opening / closing body 10 constitutes the opening / closing body main body 11 by connecting a plurality of slats 11a formed by bending a horizontally long substantially rectangular metal plate so as to rotate between the vertically adjacent slats. A seat plate member 12 for contacting the seating target portion p is connected to an end of the body body 11 on the closing direction side (lower side in the illustrated example) so as to extend in the opening / closing body width direction (FIG. 1). reference).

As shown in FIG. 2, each slat 11a has a connecting portion 11a1 for connecting to another slat 11a on one end side (the upper end side in the illustrated example) in the opening / closing body opening / closing direction, and on the other end side. And a connected portion 11a2 that engages with a connecting portion 11a1 of another slat 11a.
The connecting portion 11a1 is formed in a substantially hook shape in the longitudinal section, and has a small window 11a11 penetrating in the opening / closing body thickness direction on the base end side. The small windows 11a11 are through holes for ventilation, daylighting, and the like, and a plurality of small windows 11a11 are arranged at predetermined intervals across the opening / closing body width direction of the slats 11a (see FIGS. 1 and 2).
The connected portion 11a2 is engaged with the connecting portion 11a1, and the engaged connection portion 11a1 is slid between a position where the small window 11a11 is exposed and a position where the small window 11a11 is hidden. It is configured.

According to the above-described configuration, the opening / closing body 10 is closed, and the closing point (specifically, the seat plate member 12) of the opening / closing body 10 is in contact with the seating target site p (small window full opening seating position). Before the seating time, as shown in FIG. 1A, each of the plurality of small windows 11a11 is in a fully opened state.
Then, when the opening / closing body 10 is further closed in the sitting state, the space between the slats 11a, 11a adjacent to each other in the opening / closing body opening / closing direction is narrowed, and the plurality of small windows 11a11 are sequentially closed from the lower side, Finally, as shown in FIG. 1B, all these small windows 11a11 are substantially fully closed (small window fully closed seating position).

The guide rail 20 is a member that surrounds the widthwise end of the opening / closing body 10 in a substantially U-shaped cross section, and is disposed between the winding device 30 and the seating target portion p.
On the lower end side in the guide rail 20, there is provided a small window full opening / closing position sensing means 40 that changes an output signal when the opening / closing body 10 passes through the small window full opening / closing position in the opening direction.
The small window full-opening / sitting position sensing means 40 uses a sensing unit 41 fixed to the lower end side of the guide rail 20 to cause a sensed body 42 (for example, a magnet) fixed to the lower end side of the opening / closing body 10 to fully open the small window. It is a proximity switch that senses at the sitting position, and is electrically wired so as to transmit the sensing signal to a control unit 38 to be described later.

The operation of the small window full-opening / sitting position sensing means 40 will be described in detail. In the small window full-opening / sitting position sensing means 40, the contact state is not determined to be OFF or ON in the initial state (factory shipment state). The initial contact state is OFF or ON with a probability of approximately 1/2.
As shown in the table of FIG. 3, the operation of the contacts of the small window full opening / sitting position sensing means 40 is the contact state before passing through the movement direction (opening direction or closing direction) of the opening / closing body 10 or the small window full opening / closing position. Varies depending on etc.
For example, when the operating direction of the opening / closing body 10 is the closing direction and the contact state before passing through the small window full opening seat position is OFF, the contact state after passing through the small window full opening seat position is also maintained OFF. The
Further, when the opening / closing body 10 is in the closing direction and the contact state before passing through the small window full-opening seating position is ON, when passing through the small window full-opening seating position (reaction point in FIG. 3). The contact state changes to OFF, and the OFF state is maintained even after passing.
Also, when the opening / closing body 10 is in the opening direction and the contact state before passing through the small window full-opening seating position is OFF, the contact state changes to the ON region when passing through the reaction point x, The ON state is maintained even after passing.
Further, when the opening / closing body 10 is in the opening direction and the contact state before passing through the small window full opening seat position is ON, the contact state after passing through the small window full opening seat position is also maintained ON. The

Therefore, after the opening / closing body 10 is in the small window fully closed seating position by the closing operation such as during the initial setting operation, the opening / closing body 10 is positioned within the range from the small window fully closed seating position to the small window fully open seating position. In this case, the contact state of the small window full-opening / sitting position sensing means 40 is maintained OFF. In other words, if the contact state of the small window full opening / sitting position sensing means 40 is OFF, it can be determined that the opening / closing body 10 is located between the small window full closing / sitting position and the small window full opening / sitting position. .
This OFF state changes to the ON state when the opening / closing body 10 passes through the small window full-opening seating position in the opening direction.

  Further, the winding device 30 includes a winding shaft 32 that winds and unwinds the opening / closing body 10 in a substantially box-shaped storage part 31 in which an opening for allowing the opening / closing body 10 to appear and retract is formed on the lower side, A driving device 35 that rotates the winding shaft 32 in both directions via a power transmission means 33 such as a chain and a sprocket, a pulse transmission device 36 (for example, an encoder device) that outputs a pulse signal as the driving device 35 rotates, A load detection unit 37 that detects a load value of the drive device 35, a control unit 38 that controls the drive device 35 to open and close the opening and closing body 10, and the like are provided.

The storage portion 31 has a substantially box shape in which an opening for allowing the opening / closing body 10 to appear and retract is formed on the lower side, and an edge portion of the opening is an end portion in the closing direction of the opening / closing body 10 when the opening is fully opened (specifically, It is a lintel (not shown) for abutting the opening / closing body thickness direction of the seat plate member 12.
In addition, according to the illustrated example, the storage portion 31 is formed in a substantially box shape that conceals the internal structure of the take-up shaft 32, the drive device 35, and the like. As another example, the storage portion 31 is a type in which the internal structure is exposed. It is also possible.

  The take-up shaft 32 is formed in a cylindrical shape or a bowl shape extending in the width direction of the opening / closing body 10 and is supported rotatably with respect to the storage portion 31.

  The driving device 35 includes an AC or DC rotary electric motor that can rotate in both forward and reverse directions, and transmits the rotation of its output shaft to the winding shaft 32 via the power transmission means 33. .

The pulse transmission device 36 is a so-called encoder device that outputs a pulse signal as the output shaft of the drive device 35 rotates.
The number of pulse signals output from the pulse transmission device 36 is integrated by an integration means in the control unit 38 described later, and the integrated value is not shown as an opening / closing body position variable indicating the position of the opening / closing body 10 in the opening / closing direction. Stored in a storage device.
More specifically, for example, when the opening / closing body 10 is closed, the number of pulse signals (pulse number) of the pulse transmission device 36 is added to the opening / closing body position variable, and the opening / closing body 10 is opened. In this case, the pulse number of the pulse transmission device 36 is subtracted from the opening / closing body position variable.

That is, if the opening / closing body 10 performs a closing operation, the opening / closing body position variable increases according to the closing operation amount, and if the opening / closing body 10 opens, the opening / closing body position variable decreases according to the opening operation amount. It is supposed to be.
On the contrary, the opening / closing body position variable decreases with the closing operation of the opening / closing body 10 and the opening / closing body position variable increases with the opening operation of the opening / closing body 10.

The load detection unit 37 detects the load value of the driving device 35 during the operation of the driving device 35.
More specifically, the load detection unit 37 is a device that detects the load value of the drive device 35 as a current value or a voltage value, and sends an electrical signal corresponding to the magnitude of the load value to the control unit 38. Output.
The load value detected by the load detection unit 37 indicates that the opening / closing body 10 during the opening operation is brought into a fully opened state by bringing the seat plate member 12 into contact with a lintel (not shown) of the storage unit 31. Used for detection.

Further, the control unit 38 is input from the integrated value (opening / closing body position variable) of the pulse signal, the load detection unit 37, an operation unit (not shown) (operation BOX, remote controller, computer that generates an operation signal, portable terminal, etc.), and the like. The electric signal to be processed is arithmetically processed based on a program, and the drive device 35 is controlled to rotate forward, reverse, stop, etc. according to the processing result.
The control unit 38 also functions as an integration unit that integrates the pulse signals generated by the pulse transmission device 36 and stores the integrated value in a predetermined storage area of a storage device (not shown).
The control unit 38 is preferably configured by a programmed logic circuit used in, for example, a microcomputer or a programmable controller so that the circuit configuration, setting values, and the like can be easily changed according to the field conditions. A wired logic circuit using a relay circuit or other electronic circuit can also be used.

Next, characteristics of the control operation of the opening / closing device 1 will be described in detail based on the flowcharts shown in FIGS. 4 and 5 and the time chart shown in FIG.
The flowcharts shown in FIGS. 4 and 5 show the operation when the initial setting operation is performed before the normal operation of the switchgear 1. This operation is an operation for setting a threshold value or the like for stopping the opening / closing body 10 in the fully closed position in the subsequent normal operation. For example, the initialization operation by the operator or the power on The operation may be started on the condition that a specific operation (for example, an opening operation) is performed by the operator within a predetermined time later.

First, the control unit 38 waits for an opening command to open the opening / closing body 10 from an operation unit (not shown) (operation BOX, remote controller, computer that issues an operation signal, portable terminal, etc.) (step 1). In response to the input of the opening command, the opening / closing body 10 is opened (step 2).
As another example, step 1 and step 2 may be automatically executed within a predetermined time after the power is turned on without the release command.

Next, the control unit 38 waits for the load value measured by the load detection unit 37 to be equal to or greater than the full open load threshold (step 3), and when the load value is equal to or greater than the full open load threshold, in the next step 4, The operation of the driving device 35 is stopped, and the opening operation of the opening / closing body 10 is stopped.
The full open load threshold is determined by the edge portion of the opening / closing body thickness direction of the seat plate member 12 at the closing direction end of the opening / closing body 10 coming into contact with the lintel portion (not shown) of the storage portion 31. Is a threshold value for determining that the load value has risen when the load value suddenly increases, and is set experimentally or design in advance.

In the next step 5, the opening / closing body position variable stored in a storage device (not shown) is reset to a value of 0 as a reference value indicating the fully opened state of the opening / closing body 10.
It should be noted that the reference value indicating the fully opened state may be set to a predetermined value as appropriate, and as another example, the reference value may be a numerical value other than zero.

Then, the control unit 38 waits for an input of a closing command for closing the opening / closing body 10 from the operation unit (operation BOX, remote controller, computer that issues an operation signal, portable terminal, etc.) (step 6). In response to the input of the closing command, the closing operation of the opening / closing body 10 is started (step 7). If it demonstrates with the time chart shown in FIG. 7, a closing operation | movement will be started from the time a corresponding to the said step 6. FIG.
As another example, these steps 6 and 7 may be automatically executed after the above step 5 even without the closing command.

Then, the control unit 38 waits for the small window full-closed seating position setting operation during the closing operation of the opening / closing body 10 (step 8). The closing operation of the opening / closing body 10 is stopped by stopping the operation of the device 35 (step 9).
The small window full closing / sitting position setting operation is a special operation performed by the operator's visual judgment when the opening / closing body 10 during the closing operation is in the small window full closing / sitting position. This operation method is defined by the manual of the opening / closing device 1.
As an example of the small window full-closed seating position setting operation, for example, three simultaneous operations such as an open switch, a close switch, and a stop switch may be performed. Further, as another example, the operation is stopped by the same operation as in normal operation ( If it is not possible to stop at a preferred position at one time, the opening / closing operation may be performed again and the operation may be stopped again), and then the above three switches may be operated simultaneously.

Next, the control unit 38 stores the opening / closing body position variable at the time of stopping in Step 9 in a storage area of a storage device (not shown) as a small window full-closed seating position determination pulse value (Step 10).
The small window full closing seat position determination pulse value is a value used as a threshold value for determining that the opening / closing body 10 has reached the small window full closing seat position.

During the closing operation from step 7 to step 9, the opening / closing body 10 passes through the small window full opening / sitting position (the state shown in FIG. 1A), so that the small window full opening / sitting position sensing means 40 is in the OFF state. (See FIG. 3).
More specifically, as shown in FIG. 7, during the closing operation of the opening / closing body 10, when the opening / closing body 10 passes through the small window full opening / closing position (time b), The contact state changes to the OFF state, and the OFF state is maintained even at time c corresponding to the subsequent step 9.

Next, in step 11, the input standby state for the fully closed position confirmation command is awaited. The fully closed position confirmation command is a command for confirming whether or not the small window 11a11 is stopped at an appropriate position (small window fully closed seating position) when the opening / closing body 10 is closed. For example, in the example shown in FIG. 7, when the opening / closing body 10 is in the small window fully closed seating position, an operation of turning on the closing switch is performed.
In addition, as another example of the fully closed position confirmation command, an operation for simultaneously turning on the opening switch and the closing switch, or other operations may be used.
Thereafter, in step 12, the opening operation of the opening / closing body 10 is started (time point d according to FIG. 7).
Then, almost simultaneously with the start of the opening operation, the pulse transmission device 36 starts to accumulate pulse values (step 13). The accumulation of the pulse values will be described in detail. Based on the opening / closing body position variable stored when the opening / closing body 10 is in the small window fully closed seating position, the amount of change in the number of pulses from the reference value is calculated. I try to count.

Next, in step 14, it is determined whether or not the contact of the small window full-open seating position sensing means has changed from OFF to ON. If so, the process proceeds to step 15a. Transfer processing to.
That is, according to this step 14, it is determined whether or not the opening / closing body 10 which has started the opening operation from the small window fully closed seating position has passed the time point e of the small window fully open seated position as shown in FIG. Then, processing according to the determination is performed.

In step 15a, the opening operation of the opening / closing body 10 is stopped, and in step 16a, the integrated pulse value from the small window full-closed seating position to the small window full-closed seating position is stored as a threshold value for closing operation restriction.
That is, as shown in FIG. 7, the opening / closing body 10 stops in a state slightly past the time point e when the small window fully opened seating position is reached, and the opening / closing body position variable at the substantially time point d and the opening / closing body position variable at the substantially time point e. Is stored as a closing operation limiting threshold value.

Next, in step 17a, the closing operation of the opening / closing body 10 is started, and the pulse integration in step 18a is also started substantially simultaneously with the start of the closing operation. During this closing operation, the contact of the small window full opening / sitting position sensing means 40 changes from ON to OFF when the opening / closing body 10 passes the small window full opening / sitting position (time f according to FIG. 7).
The pulse integration in step 18a is based on the reference value of the opening / closing body position variable stored when the opening / closing body 10 is substantially at the small window full-opening seating position (time point f in FIG. 7). The number is counted.

In step 19a, it is determined whether or not the integrated pulse value from the small window full-opening seating position to the small window full-closed seating position is equal to or greater than the closing action restriction threshold. In the next step 20a, the closing operation of the opening / closing body 10 is stopped. Otherwise, the processing in the step 19a and the closing operation of the opening / closing body 10 are continued.
More specifically, in step 19a, it is determined whether or not the pulse integrated value from about time f to about time g in FIG. 7 is equal to or greater than the closing operation restriction threshold stored in step 16a. Then, processing according to the determination is performed.

Next, in step 20a, the closing operation of the opening / closing body 10 is stopped, and in step 21a,
As the opening / closing body position variable indicating the position of the opening / closing body 10 in the opening / closing direction, the small window full-closed seating position determination pulse value stored in step 10 is stored.

  Therefore, after setting the small window full-closed seating position determination pulse value and before the full-closed position confirmation operation (between time c and time d according to FIG. 7), power failure and power recovery Even if there is, it can be prevented that the closing operation of the opening / closing body 10 does not stop even if the closing operation of the opening / closing body 10 exceeds an appropriate small window full-closed seating position in the subsequent full-closed position confirmation operation. In addition, when the closing operation of the opening / closing body 10 stops at the small window fully closed seating position, the opening / closing body position variable is updated to a value indicating the actual opening / closing position (the small window full closing seat position determination pulse value). can do.

In step 15b, it is determined whether or not the integrated pulse value accumulated from the small window full-closed seating position is equal to or greater than a preset threshold value for opening operation restriction. If not, the process proceeds to the next step 16b; otherwise, the process returns to step 14.
The threshold value for limiting the opening operation is, for example, a pulse integrated value when the opening / closing body 10 is opened from the small window full-closed seating position to the small window full-open seated position, or a value substantially equal to or slightly larger than the value. Is set.
In step 16b, the opening operation of the opening / closing body 10 is stopped, and the process proceeds to the next step 17b.
In the next step 17b, an abnormality alarm is issued and the initial setting operation flow is terminated.

  That is, according to the steps 14, 15b to 17b, the opening / closing body 10 which has been opened from the fully closed position does not pass through the small window fully opened seating position (point e in FIG. 7), and the pulse integrated value accompanying the opening operation. Is greater than or equal to the opening operation restriction threshold, for example, a power failure occurs after step 12 (after point d in FIG. 7), and the opening / closing body 10 is manually lifted to the point e or higher during the power failure. It is determined that an abnormality has occurred, such as being operated, the opening operation of the opening / closing body 10 is stopped, an abnormality alarm is issued, and the initial setting operation flow is terminated. Therefore, the operator is prompted to redo the initial setting operation.

Next, an example of control during a normal closing operation will be described in detail based on the flowchart shown in FIG. 6 and the time chart shown in FIG.
In a normal use state of the opening / closing device 1, the control unit 38 waits for a closing command based on a signal from an operation switch (not shown), and when there is a closing command (step 31), the control unit 38 opens the switching body 10 once (step 31). 32). In addition, although illustration is abbreviate | omitted, when there is no said closure command, the control action which opens the opening-closing body 10 by the opening command based on operation of the opening switch which is not shown in figure is also possible.

Next, the control unit 38 determines whether or not the contact of the small window full-opening / sitting position sensing means 40 has changed from OFF to ON (step 33). The opening operation of the body 10 is stopped, and if not, the process proceeds to step 34b.
Further, the control unit 38 starts the closing operation of the opening / closing body 10 (step 35a), and also starts integrating pulses of the pulse transmission device 36 substantially simultaneously with the closing operation (step 36a).

Next, in step 37a, the accumulated pulse value accumulated from the time point of step 35a (in other words, the time point of the substantially small window fully-opened seating position) becomes equal to or greater than the closing operation restriction threshold value (see FIG. 5). When waiting, the closing operation of the opening / closing body 10 is stopped in step 38a when the closing operation limit threshold is exceeded.
In step 39a, the opening / closing body position variable indicating the position of the opening / closing body 10 in the opening / closing direction is changed to the small window full-closed seating position determination pulse value (see FIGS. 4 and 5) stored in the initial setting operation described above. Updated.

On the other hand, in step 34b, it is determined whether or not the pulse integrated value from the time when the opening operation is started in step 32 is greater than or equal to a preset opening operation restriction threshold, and is greater than or equal to the opening operation restriction threshold. In the case where the opening / closing body 10 is released in the next step 35b, the opening operation of the opening / closing body 10 is stopped.
More specifically, the control unit 38 determines whether the absolute value of the difference between the opening / closing body position variable at the time of step 32 and the opening / closing body position variable at the time of step 34b becomes the opening operation restriction threshold. Judge whether or not.
The opening operation restriction threshold is the threshold used in step 15b, and as described above, the integrated pulse value when the opening / closing body 10 is opened from the small window fully closed seat position to the small window fully open seated position, and It is set to a substantially equivalent value or a value slightly larger than this value.

That is, according to step 33 and step 34b described above, the opening / closing body 10 stops the opening operation when it reaches the small window full opening / sitting position or when the opening operation amount becomes the opening operation restriction threshold.
In addition, when the opening / closing body 10 reaches the fully open position before the opening operation amount of the opening / closing body 10 reaches the opening operation restriction threshold, processing in step 35c described later is executed.

In the next step 36b, the closing operation of the opening / closing body 10 is started.
Further, in step 37b, it is determined whether or not the contact of the small window full-opening / sitting position sensing means 40 has been changed from ON to OFF during the closing operation of the opening / closing body 10. Pulse integration is started (step 38b), and the process proceeds to step 37a.
Therefore, after the step 38b, in the step 37a and the subsequent steps, the pulse integrated value integrated from the time when the contact of the small window full-opening / sitting position detecting means 40 is changed from ON to OFF is the above-mentioned closing operation limiting threshold (see FIG. 5). ) When the above is reached, the closing operation of the opening / closing body 10 is stopped (step 38a), and the opening / closing body position variable is updated to the small window closing seating position determination pulse value (step 39a).

In step 35c, it is determined whether or not the load value measured by the load detector 37 is equal to or greater than the fully open load threshold (that is, whether or not the opening / closing body 10 has been opened to the fully open position). If it is equal to or greater than the full open load threshold, the process proceeds to step 35b described above, and if not, the process returns to step 33.
That is, in step 35c, when the opening / closing body 10 reaches the fully open position before the opening operation amount of the opening / closing body 10 reaches the opening operation restriction threshold, the process proceeds to step 35b and the subsequent steps.

According to the flowchart of FIG. 6 described above, for example, as shown in the time chart of the right half part of FIG. 7, the open / close body 10 is moved from the small window full-closed seating position while the power is turned off due to a power failure. When manually opened within the range up to the fully open / seat window position (from time h to time i in FIG. 7), the small window full open / seat position sensing means 40 is maintained in the OFF state within that range, so the closing command is issued. When there is (according to FIG. 7, time j), the opening / closing body 10 is once opened by the above steps 31-32.
Then, when the contact state of the small window full-opening / sitting position sensing means 40 changes from OFF to ON (time k according to FIG. 7), the opening operation of the opening / closing body 10 stops (step 34a), and the opening / closing body 10 The closing operation starts automatically (step 35a, according to FIG. 7, at time l).
The closing operation of the opening / closing body 10 is stopped when the integrated pulse value from the time when the small window full-opening / sitting position detecting means 40 changes from OFF to ON becomes the closing operation limiting threshold (according to FIG. 7). m).

  In addition, although explanation by the time chart is omitted, if the position of the opening / closing body 10 when the closing command is given in step 31 is closer to the opening direction than the small window full-opening seating position, step 34b and subsequent steps are performed. The flow is executed. That is, after the closing command, the opening / closing body 10 stops after a slight opening operation (steps 32, 33, 34b, (35c), 35b), and closes (step 36b). (Steps 37b, 38b, 37a, 38a), and the opening / closing body position variable is updated to the small window closing seating position determination pulse value (step 39a).

  Therefore, according to the switchgear 1 described above, it is possible to prevent the openable / closable body 10 during the closing operation from being stopped at the normal small window full-closed seating position due to the occurrence of a power failure or the like. When stopping at the position, the opening / closing body position variable for recognizing the opening / closing body position can be updated to a value indicating the actual opening / closing body position.

Note that, according to the flowchart of the illustrated example, the operation when the stop command is issued is omitted, but the operation of the opening and closing body 10 can be stopped by the stop command even when any of the steps described above is being executed. is there.
In addition, when there is a sensing signal from an obstacle sensing device (not shown) during the operation of the opening / closing body 10, it is possible to perform predetermined control such as interrupting the processing flow and stopping the operation of the opening / closing body 10. It is.
Further, according to the flowchart of the illustrated example, the operation when the opening command is issued is omitted, but when the opening command is issued, the normal opening operation of the opening / closing body 10 is possible, and the opening operation is performed. Is stopped on condition that the load value detected by the load detection unit 37 when the opening / closing body 10 is fully opened exceeds a predetermined full-open load threshold.

It is a schematic diagram which shows an example of the opening / closing apparatus concerning this invention, (a) shows the state which open | released a small window and the opening-closing body is substantially fully closed, (b) closed and opened the small window. It shows a state where the body is almost fully closed. It is a longitudinal cross-sectional view of the state which connected the some slat, (a) shows the state which open | released the small window, (b) shows the state which closed the small window. It is a table | surface which shows operation | movement of a small window full open seat position detection means. It is a flowchart which shows the control example of initial setting operation | movement. 5 is a flowchart showing an example of control of an initial setting operation, and shows a part following the flowchart of FIG. It is a flowchart which shows the example of control of a normal closing operation | movement. It is a time chart which shows an example of operation | movement in the switchgear.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1: Opening / closing device 10: Opening / closing body 11a11: Small window 20: Guide rail 30: Winding device 35: Drive device 36: Pulse transmission device 37: Load detection part 38: Control part 40: Small window full opening seat position detection means

Claims (3)

The opening / closing body having a small window is pulled out from the storage portion to perform a closing operation, and the small window is changed from the open state to the closed state by a pressing force when the closing direction end of the opening / closing body is pressed against the seating target portion. An opening / closing device for closing the small window in a state in which the small window is substantially fully opened, and the closing direction end of the opening / closing body is in contact with or close to the seating target site, and the small window is substantially fully closed. In the opening / closing apparatus in which the closing direction end of the opening / closing body has a small window full-closed seating position in contact with the seating target site,
A pulse transmission device that emits a pulse signal in accordance with the opening and closing operation of the opening and closing body;
Integration means for integrating the pulse signals transmitted by the pulse transmission device;
A small window full opening seat position sensing means for changing an output signal when the opening and closing body passes through the small window full opening seat position in the opening direction;
A control unit for controlling the opening and closing operation of the opening and closing body,
The control unit prestores the integrated value of the pulse signal from the small window full closed seat position to the small window full open seat position as a closing operation restriction threshold,
The control unit closes the opening / closing body on the condition that the output signal of the small window full-opening / sitting position sensing means has changed during the opening / closing operation of the opening / closing body, and the pulse signal during the closing operation The closing operation is stopped on condition that the integrated value of the value becomes the closing operation restriction threshold. An opening / closing device that stores an opening / closing body position variable that is an integrated value of the pulse signal and indicates a position in an opening / closing direction of the opening / closing body,
While the closing operation is stopped, the opening / closing body position variable is set to a value indicating that the opening / closing body is in the small window fully closed seating position, and to a preset pulse value for determining the small window full closing seat position. The switchgear according to claim 1, wherein the switchgear is updated.   The closing operation restriction threshold is a predetermined initial setting operation that causes the opening / closing body to open from a small window full-closed seating position to a small window full-open seated position, and the integrated value of the pulse signal during the opening operation is calculated. The switchgear according to claim 1 or 2, wherein the switchgear is a stored value.

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