JPH11256962A - Control device for opening and closing body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To more certainly carry out a total closing without the occurrence of a gap in the case of closing an opening and closing body, and to detect an obstacle in a range as wide as possible until time opening and closing body closes totally. SOLUTION: In the case of lowering a shutter curtain, when it passes through a detecting means 3 before contact with a floor surface, a detection signal is outputted. When the shutter curtain comes into contact with an obstacle or the floor surface, an obstacle detecting means 4 outputs a sensing signal. A control means 1 actuates the second timer 9 on the inputting of the sensing signal to control stopping the shutter curtain after a time up for a short period. The first timer 8 is actuated by the output of a detection signal from the detecting means 3 before contact with a floor surface to control stopping the shutter curtain after the time-up for a period corresponding to contact with the floor surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing body control device for controlling the opening / closing of an opening / closing body such as a shutter and a door.

[0002]

2. Description of the Related Art An electric shutter is configured to be stopped or inverted and raised when it comes into contact with an obstacle during opening and closing of a shutter curtain. The obstacle is detected by a sensor or the like provided on a seat plate of a shutter curtain or the like, and transmits a sensing signal wirelessly or the like to a receiving unit in a shutter case when the obstacle comes into contact, and a control unit based on the sensing signal. The above control is performed.
With a shutter having such a sensor, the lower limit can be stopped by the same operation even when it comes into contact with the floor surface,
This eliminates the need for a limit switch for detecting the lower limit position.

[0003]

The sensor sends a similar sensing signal to the receiving unit both when it touches an obstacle and when it touches the floor, and the control unit performs control based on this sensing signal. With this configuration, if the control unit attempts to execute the closing control based solely on the sensing of the sensor, it cannot be determined whether the input sensing signal is based on the obstacle contact or the floor contact. In addition, when the shutter curtain comes into contact with the floor surface that is uneven or inclined, if the shutter curtain stops in a state where the shutter curtain is in contact with the floor surface, a gap remains in a part of the shutter curtain. There is a risk. In addition, if the control unit is configured to invert and rise at the time of contact with an obstacle, the control unit also inverts and ascends at the time of floor contact, so that a gap is easily generated between the shutter curtain and the floor.

A lowering position of the shutter curtain is detected by, for example, providing a position detecting sensor above a lower limit position of the shutter curtain by a predetermined height, and a predetermined time after the position detecting sensor detects the lower end of the shutter when the shutter curtain is lowered. The shutter curtain can be lowered only continuously.However, in such a configuration, the shutter is lowered only based on the set predetermined time. It is considered that there is a gap between the floor surfaces, and conversely, a load is applied to the shutter and the switch.

Further, the set value is set based on the distance between the position detecting sensor and the floor surface and the time required to descend the shutter curtain based on the descending speed of the shutter curtain. It is no longer possible to easily set various setting values. For example, if the set value is small, there is a gap between the shutter curtain and the floor, and if the set value is large, a downward force is applied even after the shutter curtain contacts the floor, and a load is applied to the shutter and the switch. Inconvenience may be added. In addition, when the distance or the descending speed is changed, it is necessary to reset the distance and the complexity.

[0006] Further, even if the sensor fails,
In the normal open / close state where it does not touch an obstacle, it will stop after the predetermined time regardless of the operation of the sensor,
Even if the sensor fails, there is a risk that the sensor may continue to be used without knowing the failure. Further, with the above-described configuration, the detection of obstacles during the period from when the shutter passes through the position detection sensor to when the obstacle is closed becomes invalid, so that the range of obstacle detection when the shutter curtain is closed is reduced. The above-described problem may occur not only in the shutter but also in other opening and closing bodies such as a door that opens and closes at the open position and the closed position.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and it is possible to securely close the opening and closing member without any gap when closing the opening and closing member. An object of the present invention is to provide an opening / closing body control device capable of detecting an obstacle in a wide range.

[0008]

According to a first aspect of the present invention, there is provided a control apparatus for an opening and closing body according to the present invention. Obstacle detecting means for detecting a state in which the door has moved to the closed position and outputting a detection signal, and pre-closure detection for detecting that the opening / closing body has moved to a position slightly opened from the closed position and outputting a detection signal Means, when the opening / closing body is closed, corresponding to whether or not a predetermined period or distance has elapsed from the time when the sensing signal was input from the obstacle sensing means after the detection signal was input from the before closing detecting means. And control means for executing different closing controls.

Further, the present invention further comprises closing counting means for counting a period or a distance after the sensing signal is input from the obstacle sensing means and outputting a count value. When the count value counted by the closing counting means reaches a corresponding predetermined period or distance, the closing of the opening / closing body may be stopped.

[0010] Further, the present invention further comprises sensing counting means for counting a predetermined period or distance after the detection signal is input from the before-closing detecting means and outputting a count value.
The control means forcibly stops the closing of the opening / closing body when a count value counted by the sensing counting means reaches a period or a distance longer than the opening / closing body reaches the closing position from the pre-closing detection means. It is good also as a structure to make it.

According to a fourth aspect of the present invention, there is provided a closing timer which starts counting based on the input of a sensing signal from the obstacle sensing means and counts up after a predetermined period has elapsed. A sensing timer that starts counting based on a detection signal input from the sensing means and counts up at least after a period of time from when the opening / closing body reaches the closed position from the pre-closing sensing means, and May be configured to add a predetermined time-up value and simultaneously set the time-up value of the sensing timer based on the setting input of the time-up value of the closing timer.

Further, the present invention further comprises sensing counting means for counting a predetermined period or distance after the detection signal is inputted from the pre-closing detecting means and outputting a count value,
The control means stores in advance a reference value indicating a reference period or a distance from when the detection signal is input from the pre-closure detection means to when a detection signal is input from the obstacle detection means. Each time the body closes, a sensing signal is input from the obstacle sensing means, and then the count value of the sensing counting means is compared with the reference value to detect an obstacle or open or close the body. A configuration may be adopted in which it is determined whether the body is in the closed state, and the closing of the opening / closing body is controlled in accordance with the result of the determination.

When the opening / closing body is closed, a detection signal is output from the pre-closing detection means. Thereafter, when the opening / closing body reaches the closed position or when an obstacle is detected, a sensing signal is output from the obstacle detection means. The control means executes predetermined closing control to stop and control the opening / closing body. The closing counting means starts counting based on the input of the sensing signal from the obstacle sensing means, and stops closing the opening / closing body after a predetermined period or a lapse of a distance. Also, the sensing counting means starts counting based on the input of the detection signal from the pre-closing detection means. When the counting unit for sensing counts a period or a distance longer than the opening / closing member reaches the closing position from the detecting device before closing, the control unit forcibly stops the closing of the opening / closing member.

[0014]

FIG. 1 is a block diagram showing a control device for an opening / closing body according to the present invention. In the following embodiments, a shutter in which a shutter curtain moves up and down as an opening and closing body will be described as an example. The shutter curtain is driven to open and close by the rotation of the switch M. The control means 1 includes a CPU, ROM, RA
M, etc., and controls the driving of the switchgear M based on a control program. The control means 1 is connected to an operation switch 2 composed of switches for opening and closing.

When the shutter curtain descends, when the shutter curtain reaches a position above a floor by a predetermined height (position before floor surface contact), before closing detection means (hereinafter, referred to as floor before contact detection means). 3 and outputs a detection signal to the control means 1. As an example of the configuration of the floor surface pre-contact detection means 3, there is used one configured by a limit switch connected to the switch M, and detecting the position of the shutter curtain before the floor surface contact based on the rotation of the rotating shaft.
The position before the floor contact is, for example, a height from the floor of 20 to
It is set at a position corresponding to 30 mm. Further, a sensor or the like may be provided at a predetermined height position from the floor surface of the guide rail, and a detection signal may be output by detecting that the front end (seat plate) of the shutter curtain has passed this sensor portion.

The presence of an obstacle at the opening when the shutter curtain is moved up and down is sensed by the obstacle sensing means 4.
The obstacle detecting means 4 includes a sensor 5 provided on a seat plate of a shutter curtain and a receiver 6 provided on a shutter case near the control means 1. For example, the sensor 5 operates using the battery 5b as a power supply, and wirelessly transmits a sensing signal to the receiver 6 by infrared light or the like when the seat plate switch 5a is operated by contact of an obstacle with the seat plate. The receiver 6 receives the sensing signal and outputs it to the control means 1. In addition, a light emitting / receiving device for infrared rays or the like is provided on each of the guide rails on both sides of the shutter, and outputs a sensing signal to the control means 1 when the opening is blocked. In the configuration using the light emitting and receiving device, the control unit 1 determines that the obstacle detection is performed when the detection signal is received during a period in which the tip of the shutter curtain is located above the floor surface pre-contact detection unit 3. After the detection unit 3 detects the shutter curtain, the detection signal from the light emitter / receiver determines that the shutter curtain has passed.

The control means 1 drives the switch M by outputting a drive signal in the direction corresponding to the switch M in response to the input of the operation signal of the operation switch 2 to open and close the shutter curtain in the operation direction.
When the obstacle sensing means 4 senses an obstacle during the opening and closing, the opening and closing of the shutter curtain is controlled based on the input of the sensing signal.

The control means 1 is provided with a closing counting means (first timer) 8 and a sensing counting means (second timer) 9, and a timer setting means 10 sets a timer value (time-up value). Is done. The first timer 8 starts timer counting when the pre-floor-contact detection unit 3 detects that the shutter curtain has been lowered. The time-up value of the first timer 8 is set to a predetermined period t1 (for example, 5 seconds), and in addition to a period until the shutter curtain comes into contact with the floor surface after passing through the position before the floor surface contact when the shutter curtain descends, and further. The period is set until a predetermined time elapses. In other words, if the first timer 8 does not receive a sensing signal from the obstacle sensing means 4 for some reason (it cannot determine that the sensing signal has been input), the first timer 8 cannot stop the closing operation if left as it is. It is provided for determination to prevent this.

The second timer 9 starts timer counting when a sensing signal is input after the first timer 8 starts counting. The time-up value of the second timer 9 is a predetermined period t2 (t1> t2, for example, 1
Second), and the shutter curtain is further lowered for a period t2 from the input of the sensing signal to the time-up. That is, the second timer 9 is provided to count the time required for closing the shutter curtain to close a gap between the shutter curtain and the floor when the shutter curtain is closed. When the shutter is a slit shutter, the second timer 9 counts the time required from when the slit shutter comes into contact with the floor to when all slits close.

The timer setting means 10 is configured to input and set a time-up value t2 of the second timer 9,
The control means 1 may be configured to set the time-up value t1 of the first timer 8 based on this setting. That is, the control unit 1 sets a time-up value t1 of the first timer by adding a predetermined time-up value (constant) to the time-up value t2 of the second timer 9 that has been input. This constant is a value set in advance as a period from the position before the floor surface contact to the floor surface. Thereby, the setting device constituting the timer setting means 10 can be simplified, and the operation of setting the timer can be facilitated. And the control means 1
When the time is up in one of the second timers 8 and 9, control is performed to stop the lowering of the shutter curtain.

Next, the shutter closing operation according to the above configuration will be described with reference to the flowchart of FIG. When the close switch of the operation switch 2 is pressed, the control means 1 drives the switch M to lower the shutter curtain (S
1). A sensing signal when the obstacle sensing means 4 senses an obstacle during the lowering of the shutter curtain and before the detection by the floor contact detection means 3 is input to the control means 1, and the closing is controlled. For example, the shutter curtain is immediately stopped by this sensing signal. Alternatively, it is possible to adopt a configuration in which the reversal is performed, and the rising time can be set.

If the shutter curtain continues to descend without contacting an obstacle, the shutter curtain is detected by the floor surface pre-contact detection means 3 when approaching the floor surface,
The detection signal is input to the control means 1 (S2). The control means 1 starts counting by the first timer 8 based on the input of the detection signal (S3). The shutter curtain continuously descends, so that it passes through the floor-contact-before-detection means 3 and then contacts the floor. Accordingly, the sensor 5 transmits a sensing signal and inputs the sensing signal to the control means 1 (S4-Y).
ES).

With the input of the sensing signal, the count of the second timer 9 starts (S5). The second timer 9
When the predetermined time t2 has elapsed, the time is up (S6-YE
S). The control means 1 stops the lowering of the shutter curtain based on the time-up of the second timer 9 (S7). Therefore, after the shutter curtain comes into contact with the floor surface, the lowering stops after a lapse of the predetermined period t2.

According to the above control, the shutter curtain stops after a predetermined period of time t2 has elapsed after the sensing signal is input. Therefore, when the shutter curtain comes into contact with the floor surface, a gap may be generated between the floor surface and the shutter curtain. Not
The shutter curtain can be fully closed more reliably. Further, the floor surface is inclined (for example, the height positions of both ends of the opening floor surface position are different), and there are irregularities (irregularities of the floor surface portion where the lower end of the shutter curtain contacts).
In this case, if the shutter curtain simply comes into contact with the floor surface and stops, a gap is created between the shutter curtain and the floor surface, but according to the above control, the shutter curtain contacts the floor surface at the lower end. After the elapse of a predetermined period t2 from the end, even if there is a gap between the shutter curtain and the floor, the lower end of the shutter curtain can contact the floor more, and the gap can be reduced. Become. In other words, the gap can be as small as possible,
A second timer 9 is set to a time-up value (predetermined period t2) corresponding to a time during which the closing operation does not cause much trouble if an obstacle comes into contact.

Then, after passing through the position before the floor contact when the shutter curtain descends, if an obstacle is contacted between the position before the floor contact and the floor, a sensing signal is output by sandwiching the obstacle. Then, the lowering of the shutter curtain is stopped by the time-up of the second timer 9. This allows
When the shutter curtain descends and comes into contact with the obstacle between the position before the floor contact and the floor, the weight for pressing the obstacle does not exceed a certain value. In this way, by taking in and controlling the sensing signal when the shutter curtain is lowered without invalidating it, it is possible to reduce the weight applied to the obstacle when the obstacle comes into contact.

When the state in which the sensing signal is not output in S4 continues for a predetermined period and the first timer 8 times out (S8-YES), the control means 1 forcibly stops the lowering of the shutter curtain (S8). S9). The first timer 8 has a configuration in which the time is up after a period longer than the period from when the shutter curtain descends and passes through the position before the floor contact and reaches the floor, so that the shutter curtain comes into contact with the floor. To stop descending.

According to the above configuration, if any one of the first and second timers 8 and 9 is timed out, the lowering of the shutter curtain is controlled to stop, so that one of the timers fails. However, the shutter curtain can be stopped from descending, and the stop control can be duplicated. Alternatively, the second timer 9 may also be used as the first timer 8, and the first timer 8 may be reset by setting the type-up value used for the second timer 9 to count. In this case, a single timer can be used without separately providing the second timer 9.

Next, a second embodiment of the present invention will be described.
In this embodiment, after the shutter curtain descends and passes through the position before the floor contact, it is configured to determine whether the opening / closing body is closed or the obstacle is in contact based on the timing at which the sensing signal is output. . Therefore, the count value of the first timer 8 during the period from the start of the count of the first timer 8 to the start of the count of the second timer 9 is stored in the storage unit (RAM or ROM, etc.) of the control means 1 as a reference count. The value is stored as a value. This reference count value can be set and stored by lowering the shutter curtain when the shutter is installed, in addition to storing the reference count value in advance. Specifically, after setting to the setting mode by pressing a predetermined key or the like, it is lowered, and the period from the time of detecting the position before the floor contact to the time indicating that the door is completely closed by pressing the stop key or the like is counted, and this period is counted. Is stored.

FIG. 3 is a flowchart showing the operation of the above configuration. The same parts as those in the above-described embodiment are denoted by the same reference numerals. When the shutter curtain descends and passes the position before the floor contact (S2), and after the first timer 8 starts counting (S3), a sensing signal is output (S3).
4) When the second timer 9 starts counting (S
5), read the count value of the first timer 8 (S1)
0).

Then, the control means 1 compares the count value of the first timer 8 with a reference count value (S1).
1). The reference count value corresponds to a period until reaching the floor. Therefore, as a result of the comparison, if the count value of the first timer 8 is small, it is determined that the vehicle has touched an obstacle before reaching the floor after passing through the position before floor contact (S12), and the lowering of the shutter curtain is controlled. (S13). This control includes, as described above, immediately stopping the shutter curtain or inverting and raising the shutter curtain. In order to immediately execute this control, in S12, the first and second timers 8, 9 do not count. As the descending control (S13) at the time of detecting the obstacle, the closing control may be performed again. Specifically, the shutter curtain may be turned upside down and stopped after passing through the position before the floor contact, and the processing after S1 may be executed again.

On the other hand, as a result of the comparison in S11, the first timer 8
If the count value is equal to or greater than the reference count value, it is determined that the vehicle has not touched the obstacle after passing through the position before the floor contact, and has touched the floor (S14). Stop control of the curtain closing operation. As described above, according to the configuration in which the output of the sensing signal is enabled and captured even after passing the position before the floor contact, the obstacle contact can be detected during the entire period until the floor reaches the floor when the shutter curtain descends. .

Next, a third embodiment of the present invention will be described.
FIG. 4 is a flowchart showing the operation of this embodiment. The same parts as those in the above-described embodiment are denoted by the same reference numerals. In this embodiment, a third timer 12 is newly provided (denoted by a dotted line in FIG. 1). In the third timer 12, a time-up value corresponding to a period t3 in which the shutter curtain is controlled by the input of the sensing signal is set.

That is, the control means 1 starts counting by the third timer 12 after passing the position before the floor contact when the shutter curtain is lowered (S2) and when a sensing signal is input (S4) (S20). At the same time, the shutter curtain is controlled (S21). For example, the shutter curtain is kept stopped for a period t3 until the third timer 12 times out (for example, 2 seconds). And the third timer 1
When the time is up (S22-YES), the shutter curtain is lowered again (S23). Further, as the control in S21, the shutter curtain may be inverted and raised. In this case, the shutter curtain is inverted and raised for a period t3 set by the third timer 12.

When the first timer 8 has timed out (S8-YES), the control means 1 forcibly stops the lowering of the shutter curtain (S9). ). The first timer 8
Since the shutter curtain descends and passes through a position before the floor contact and reaches the floor after a period longer than a predetermined period (predetermined period t1), the shutter curtain is assumed to be in contact with the floor. Stop descent. At the same time, if necessary, an abnormality signal indicating that the obstacle sensing means 4 is in an abnormal state is output to the outside. That is, the first timer 8 counts at least a period t1 during which the shutter curtain contacts the floor surface after passing through the position before the floor surface contact. Therefore, although the shutter curtain should have been in contact with the floor surface before the time of the first timer 8 has expired, it is determined that there is no input of a sensing signal, and thus it is abnormal.

The abnormal state in which the obstacle sensing means 4 does not output a sensing signal is caused by a failure of the sensor 5 or the receiver 6 of the obstacle sensing means 4 or the like. For example, when the battery 5b provided in the sensor 5 is exhausted and the sensing signal cannot be transmitted wirelessly, when the seat plate switch 5a is in a defective state such as a contact failure, or when the sensor 5 and the receiver 6 When the wireless transmission / reception during the period is incomplete. As described above, when the sensing signal is not output at the time when the sensing signal should be output from the obstacle sensing means 4 due to the closing of the opening / closing body, the obstacle sensing means 4 is determined to be in an abnormal state and the abnormal signal is notified. (Not shown) and can be notified by sound or light, so that a monitor or a user can know an abnormal state.

Next, FIG. 5 is a flowchart showing the processing contents according to the fourth embodiment of the present invention. As shown in the drawing, this embodiment is a configuration of a modification of FIG. 4, and when a return signal indicating that an obstacle has been removed is input from the obstacle sensing means 4, the shutter curtain is immediately lowered again. It is configured to be. For this reason, the sensor 5 of the obstacle sensing means 4 is configured not only to output a sensing signal at the time of contact with an obstacle, but also to output a return signal when the obstacle is subsequently removed. To explain a specific example, the sensor 5 outputs a sensing signal when the seat plate switch 5a is closed by contact with an obstacle, and after the sensing signal is output, the obstacle is removed and the seat plate switch 5b is opened. Outputs a recovery signal when

Then, the control means 1 executes each processing shown in FIG. 5 as processing corresponding to the return signal. That is,
After the process of S21, when the return signal is input (S25-YE
S), the third timer 12 is cleared (S26), and S2
The process moves to 3 and the shutter curtain is lowered again. On the other hand, when the return signal is not input in S25, the shutter curtain is lowered again after waiting for the time-up of the third timer 12 in S22.

Next, a fifth embodiment of the present invention will be described.
FIG. 6 is a flowchart showing the operation of this embodiment. The same parts as those in the above-described embodiment are denoted by the same reference numerals. In this embodiment, a fourth timer 13 is newly provided (denoted by a dotted line in FIG. 1). In this embodiment, as a content of the control in S21, when the vehicle touches an obstacle after passing through the position before the floor contact, the shutter curtain is turned upside down for a predetermined time. Also in this embodiment, the sensor 5 of the obstacle sensing means 4 is configured to not only output a sensing signal at the time of contact with an obstacle but also output a return signal when the obstacle is removed. .

By executing this control (S21), the fourth timer 13 starts counting (S30). The fourth timer 13 has a time-up value corresponding to the reversal rising time (predetermined time period t4), and is a time period away from the obstacle after contact with the obstacle, and a time period capable of preventing intrusion in crime prevention. Is set to a value corresponding to. If the return signal from the obstacle sensing means 4 is input before the time-out of the fourth timer 13 due to the reversal of the shutter curtain (S32-YES), the reversal of the shutter curtain stops (S34). The third timer 12 starts counting (S20). Here, when the time of the fourth timer 13 is up (S31-YES, it is determined that the reversal rise time is abnormally long, the shutter curtain is controlled to be stopped, and an abnormal signal is output to the outside to end the processing (S33). Timer 12 counts the stop time, and upon a time-up after a predetermined period (t3) (S22-YES),
The flow shifts to S23, where the shutter curtain is lowered again.

As a modified example of the above-described configuration, when the shutter curtain moves upward beyond the floor contact detection means 3 due to the reversal rise in S21, the control proceeds to S34 to stop the shutter curtain. According to this control, the fourth timer 13 is not required, and the control processing of S30 to S32 shown in FIG. 6 is not required.

The shutter as the opening / closing member described in the above-described embodiment includes a slit shutter in addition to the above-described closing shutter. In this slit shutter, the closing control described in each of the above-described embodiments is executed. Similar functions and effects can be obtained. The slit shutter is provided with a slit on each of a plurality of slats, and upper and lower slats are slidable up and down at predetermined intervals so that the slit portion can be opened and closed. When the shutter curtain is lowered, the slit portion opens, and the floor surface is opened. It is configured to be closed sequentially from the lower slit by contact. Therefore, in the case of such a slit shutter, the time-up value of the first timer 8 described above includes:
At least a period slightly longer than a period corresponding to the time when the slit shutter comes into contact with the floor surface from the position before the floor surface contact and the entire slit is closed is set. The time-up value of each of the second timer 9, the third timer 12, and the fourth timer 13 may be the same as the above-described embodiment.

Further, in the above-described embodiment, the shutter is described as an example of the opening / closing body. However, the opening / closing body may be applied to, for example, a door that moves horizontally and closes the opening. In the case where the door is applied, the above-mentioned floor surface corresponds to the closing position, and an obstacle is detected during a period until the door reaches the closing position, and a sensing signal from the sensing means is input after passing the position before closing. Based on this, the door is controlled to stop. Further, the opening and closing body is not limited to the shutter and the door, but may be another opening and closing body. The opening and closing direction of the opening and closing body is not limited to the vertical and horizontal directions. The operation and effect can be obtained.

Further, in the above embodiment, the closing counting means 8 and the sensing counting means 9 are configured to count the period as the first and second timers 8 and 9, respectively, but the period is counted. The present invention is not limited to this, and may be configured to count the distance moved when the opening / closing body is closed. This distance may be converted based on the counted time, and may be calculated based on, for example, the rotation amount of the motor, the rotation amount of the winding shaft, and the movement amount of the opening / closing body. And the like. In addition, the third and fourth
In the case where the timers 12 and 13 are provided, the configuration is not limited to the counting of the period, and the converted distance may be counted.

[0044]

According to the present invention, since the opening / closing body is configured to stop after a predetermined period after receiving the sensing signal after passing the pre-closing position when the opening / closing body is closed, a gap is generated when the opening / closing body is closed. Can be prevented, and the full closing can be performed more reliably. In addition, since the system detects the obstacle and controls the stop of the opening / closing body by detecting the obstacle even before reaching the closing position, the obstacle is detected in the widest possible range until the opening / closing body is fully closed. The load applied to both the obstacle and the opening / closing body can be reduced. Further, in the present invention, when the opening / closing body is closed, the counting means for sensing is activated when passing the pre-closing position, and the counting means for closing is activated upon obstacle detection, and when one of the count values reaches a predetermined value or more, the opening / closing is performed. Since the lowering of the body is stopped, the lowering of the opening / closing body can be stopped by the other counting unit even when one of the counting units malfunctions. The opening and closing body is not limited to a shutter that moves up and down, and any opening and closing body that opens and closes between an open position and a closed position, such as a door, can provide the same effects as described above.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of an opening / closing body control device according to the present invention.

FIG. 2 is a flowchart showing processing contents of the present invention.

FIG. 3 is a flowchart showing processing contents according to a second embodiment of the present invention.

FIG. 4 is a flowchart showing processing contents according to a third embodiment of the present invention.

FIG. 5 is a flowchart showing processing contents according to a fourth embodiment of the present invention.

FIG. 6 is a flowchart showing processing contents according to a fifth embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Control means, 2 ... Operation switch, 3 ... Floor surface contact detection means (pre-closure detection means), 4 ... Obstacle detection means, 5 ... Sensor, 6 ... Receiver, 8 ... Close counting means (No. 9) sensing counting means (second timer), 10 ... timer setting means, 12 ... third timer, 13 ... fourth timer.

Claims (5)

[Claims] 1. An obstacle sensing means for sensing an obstacle at an opening at the time of opening / closing of an opening / closing body and a state where the opening / closing body has moved to a closed position and outputting a sensing signal, A pre-closure detecting means for detecting that the movable body has moved to a slightly opened position and outputting a detection signal; and, when the opening / closing body is closed, a detection signal from the obstacle detection means after a detection signal is input from the pre-closure detection means. Control means for executing different closing controls depending on whether or not a predetermined period or distance has elapsed since the time when was input. 2. A closing counting means for counting a period or a distance after a sensing signal is input from the obstacle sensing means and outputting a count value, wherein the control means includes a counter for counting the closing count means. The opening / closing body control device according to claim 1, wherein the closing of the opening / closing body is stopped when the counted value reaches a corresponding predetermined period or distance. 3. A sensing counter for counting a predetermined period or distance after a detection signal is input from the before-closing detector and outputting a count value, wherein the control means includes: 2. The opening / closing body control device according to claim 1, wherein the closing of the opening / closing body is forcibly stopped when the counted value reaches a period or a distance longer than the time when the opening / closing body reaches the closing position from the pre-closing detection means. . 4. A closing timer that starts counting based on the input of the sensing signal from the obstacle sensing means and counts up after a predetermined period has elapsed, and a detection signal is input from the pre-closing detection means. A sensing timer that starts counting based on that and counts up at least after a period of time from when the opening / closing body reaches the closed position from the pre-closing detection means, and wherein the control means is configured to control the time of the closing timer. 2. The opening / closing body control device according to claim 1, wherein a predetermined time-up value is added and a time-up value of the sensing timer is set at the same time based on a setting input of the up value. 5. A sensor for counting a predetermined period or a distance after a detection signal is input from the pre-closure detection means and outputting a count value, wherein the control means is configured to detect the count value from the pre-closure detection means. After the detection signal is input, a reference value indicating a reference period or a distance until the detection signal is input from the obstacle detection means is stored in advance, and each time the opening / closing body closes, the obstacle is closed. After the sensing signal is input from the sensing means, by comparing the count value of the sensing counting means with the reference value, whether an obstacle is sensed,
The control device for an opening / closing body according to claim 1, wherein it is determined whether or not the opening / closing body is in a closed state, and the closing of the opening / closing body is controlled in accordance with the determination result.