JP3500222B2 - Safety device for electric shutter with remote control operation function - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric shutter having a remote control operation function capable of opening and closing a shutter by operating a remote control, and more particularly to a technique for avoiding danger when a seat plate comes into contact with a foreign object. .

[0002]

2. Description of the Related Art For example, garages for general households are often equipped with shutters for opening and closing, and in recent years, those having a remote control operation function are becoming popular due to their ease of operation. FIG. 5 is a block diagram showing a configuration of a conventional electric shutter having a remote control operation function.

As shown in the figure, this electric shutter is a shutter curtain 1 that moves vertically to open and close.
A guide rail 2 for guiding the movement of the shutter curtain 1, a shutter case 5 for accommodating the wound shutter curtain 1, a drive motor 4 for electrically winding the shutter curtain 1, and the drive motor 4 A shutter control panel 12 for controlling the operation of the shutter, a power supply 14, a push button switch 8 for operating the raising, lowering, and stopping of the shutter curtain 1, and a remote controller for remotely operating the raising, lowering, and stopping of the shutter curtain 1 with a remote controller. A switch 9 and an antenna 10 for receiving a radio signal (radio wave, light, ultrasonic wave, or other radio signal) from the remote controller switch 9.
And a remote control receiver 11 for converting the received wireless signal into a control signal, and a floor surface detection switch 15 for detecting that the shutter curtain 1 has reached the floor surface.

Further, in order to avoid a risk when the shutter curtain 1 comes into contact with a foreign substance, a seat plate switch 3 for detecting the contact with the foreign substance is attached to the lowermost portion of the shutter curtain 1, and this detection is performed. The signal is transmitted from the transmitter 6 to the receiver 7 as a radio signal. Then, this wireless signal is converted into a control signal by the reception control panel 13 and output to the shutter control panel 12.

In such a configuration, when the shutter curtain 1 is opened and closed, the remote control switch 9
Alternatively, the push button switch 8 is operated. Now, when the remote control switch 9 is operated, after the wireless signal transmitted from the remote control switch 9 is received by the antenna 10,
It is supplied to the shutter control panel 12 via the remote control receiver 11. As a result, the drive motor 4 operates and the shutter curtain 1 is controlled to move up, down, or stop.

Here, when the seat plate switch 3 comes into contact with a foreign object while the shutter curtain 1 is descending, the seat plate switch 3 is turned on and this detection signal is sent from the transmitter 6 to the receiver 7 and the reception control panel. 13 is output. This allows
For example, the reception control panel 13 temporarily stops the shutter curtain 1 from descending and then outputs an operation signal such as raising the shutter curtain 1 to the shutter control panel 12 to operate so as to avoid the risk of contact with foreign matter.

[0007]

However, in the conventional electric shutter as described above, the two receiving systems, that is, the transmitting / receiving system by the remote control switch 9 and the transmitting / receiving system of the detection signal of the seat plate switch 3, are required. So
There are drawbacks in that the scale of the device is large, the cost is high, and there are many failures.

Further, in the prior art, the transmitter 6 simply transmits the detection signal of the seat plate switch 3 to the receiver 7, and the subsequent processing is performed by the reception control panel 13 and the reception control panel. Since 13 is usually housed inside the ceiling or in the shutter case 5, it is difficult to change the operation after the seat plate switch 3 comes into contact with a foreign object.

The present invention has been made in order to solve such a conventional problem, and its object is to change the operation after the seat plate switch 3 comes into contact with a foreign matter with a simple structure. It is to provide a safety device for an electric shutter that can be easily performed.

[0010]

In order to achieve the above object, the present invention provides a shutter curtain, a seat plate switch which is attached to the lowermost portion of the shutter curtain and detects contact or proximity of foreign matter, and the shutter curtain. A drive motor for opening and closing, a control means for controlling the drive motor, a remote control operating means for operating the opening and closing of the shutter curtain from a distance, and a radio signal transmitted from the remote control operating means for reception and output to the control means. Remote control receiving means to be installed, and attached near the seat plate switch,
The remote control receiving means has a transmitting means for transmitting a radio signal, and the transmitting means includes a control means for setting the operation of the shutter curtain when the contact or the proximity of a foreign substance is detected by the seat plate switch. With an electric shutter
Therefore, the control means detects the foreign matter by the seat plate switch.
When contact or proximity is detected, the drive motor is temporarily
After stopping, raise it, and after a predetermined time, restart the drive motor.
It controls to lower it and also sends it from the remote control operation means.
Remote control receiving means for receiving a received wireless signal;
Radio from the transmitter installed near the seat switch
The receiving means for receiving the signal is the same .

[0011]

According to the present invention configured as described above, when the seat plate switch comes into contact with a foreign object, this contact is detected, and the transmitting means receives the detection signal and stops, raises, or lowers the shutter curtain again. The control command signal of is transmitted to the receiving means. And, since this receiving means is the same as that for receiving the radio wave signal transmitted from the remote control switch,
Only one receiving means is required, and the circuit scale can be reduced. Further, when the seat plate switch comes into contact with a foreign object, the operation setting can be performed by the transmitting means attached in the vicinity of the seat plate switch, so that the operation setting can be easily changed.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing an embodiment of an electric shutter with a remote control operation function to which the present invention is applied. As shown, this electric shutter is a shutter curtain 1.
A guide rail 2 for guiding this, a shutter case 5 for accommodating the shutter curtain 1, a seat plate switch 3 attached to the lowermost part of the shutter curtain 1,
Drive motor 4 for opening and closing the shutter curtain 1
A shutter control panel 12 for controlling the rotation of the drive motor 4, a push button switch 8 for operating up, down, and stop of the shutter curtain 1, and a remote control switch 9 for remotely operating this operation. , The antenna 1 for receiving the radio signal from the remote control switch 9
0, and a remote control receiver 11 for converting the received signal into a control signal, a power supply 14, and a floor surface detection switch 15. Further, in order to avoid this danger when the seat plate switch 3 comes into contact with a foreign object, the seat plate switch 3
In the vicinity of the transmission control device 16, transmitter 17, antenna 1
8 are provided.

FIG. 2 is a block diagram showing a detailed configuration of the transmission control device 16. As shown in the figure, the transmission control device 16 transmits a transmission command (23, 24, 25) of each signal for raising, lowering, and stopping the shutter curtain 1 to a transmitter 17.
In response to a detection signal from the transmission command unit 31 that outputs the output, the rise time timer 26 that sets the rise time, and the seat plate switch 3, a series of operations for raising, stopping, and lowering the shutter curtain 1 is set, and this series of A repetition number setting circuit 22 that sets the number of repetitions, an abnormality determination circuit 27 that detects an abnormality when the seat plate switch 3 does not recover despite the shutter curtain 1 being raised for a predetermined time, and an abnormality is detected. Abnormal alarm buzzer 28 that gives an alarm when
And have. Further, it has a battery 21 for supplying power, a voltage monitoring circuit 29 for monitoring the voltage drop of the battery 21, and an alarm buzzer 30 for issuing an alarm when the voltage drop occurs.

Next, the operation of this embodiment will be described with reference to the flow chart shown in FIG. 3 and the timing chart shown in FIG. When the remote controller switch 9 shown in FIG. 1 is operated to move up, down, or stop, the operation command is transmitted as a radio signal and received by the antenna 10. Then, the received signal is transmitted to the remote control receiver 11
Is converted into a control signal and is supplied to the shutter control panel 12. As a result, the shutter control panel 12 drives the drive motor 4 to raise, lower, and stop the shutter curtain 1, and remote control operation is performed.

Here, when the shutter curtain 1 descends and reaches the floor surface, the floor surface detection switch 15 is turned on,
The lowering of the shutter curtain 1 is stopped at this position (YES in step 1). Also, the shutter curtain 1
Is moving down (in this case, the shutter curtain 1
Has not reached the floor surface, so NO in step ST1), when the seat plate switch 3 comes into contact with a foreign object (step ST2),
The seat plate switch 3 (one of the plurality of switches) is turned on (step ST3), and the transmission command unit 31 shown in FIG. 2 outputs a stop command signal. This allows the transmitter 1
Stop signal 2 to antenna 10 via 7 and antenna 18
4 is transmitted, and the lowering of the shutter curtain 1 is stopped under the control of the shutter control panel 12.

Thereafter, the transmission command section 25 outputs an ascending signal 25 under the control of the repetition number setting circuit 22 shown in FIG. 2 (step ST4), whereby the shutter curtain 1 is set to the ascending time timer 26 for the time set. Only rises (step ST5).

Then, the abnormality determination circuit 27 shown in FIG. 2 determines whether or not the seat plate switch 3 is turned off (step ST6). Normally, when the seat plate switch 3 collides with a foreign object and then the shutter curtain 1 is raised, the collision is avoided and the seat plate switch 1 should return. That is, as shown in FIG. 4A, the "seat switch" should be turned off when the "rise signal transmission" is turned on. Therefore, as shown in FIG. 2B, when the seat plate switch 3 does not return even if the shutter curtain 1 is raised (NO in step ST6), it is determined that there is an abnormality, and the abnormality determination circuit 27 causes the abnormality alarm buzzer. Sound 28 (step ST
9) Further, a stop signal is transmitted (step ST1
0), the shutter curtain 1 is forcibly stopped.

On the other hand, when the seat plate switch 3 is turned off (YES in step ST6), the stop signal 24 is output (step ST7), and then the descent signal 23 is output to lower the shutter curtain 1 again. (Step ST
8). Then, when the foreign matter is not removed, the seat plate switch 3 collides with the foreign matter again, and the operations of steps ST1 to ST10 are repeated.
Then, when the foreign matter is still not removed by repeating the number of repetitions set by the number-of-repetitions setting circuit 22, the shutter curtain 1 is forcibly stopped from descending.

When the foreign matter is removed, the shutter curtain 1 normally descends and stops at the position where the floor surface detection switch 15 contacts the floor surface. Further, the voltage monitoring circuit 29 monitors the voltage value of the battery 21, and when the voltage becomes lower than the predetermined value (NO in step ST11), the transmission control device 16 does not operate normally, The alarm buzzer 30 is sounded to issue an alarm (step ST12).

As described above, in this embodiment, even when the shutter curtain 1 is lowered by using the remote control switch 9 and the seat plate switch 3 arranged under the shutter curtain 1 collides with a foreign matter, Since the shutter curtain 1 is immediately raised, the danger due to a collision can be avoided, and the signal from the transmission control device mounted in the vicinity of the seat plate switch 3 is transmitted by the remote control switch 9
Since it is received by the antenna 10 which receives the radio wave from, it is not necessary to install two receiving systems as in the conventional case.

Further, the operation of the shutter curtain 1 when the seat plate switch 3 collides with a foreign object (for example, the number of repetitions of ascending / descending) can be set inside the transmission control device 16, so As described above, it is not necessary to operate the inside of the reception control panel disposed inside the ceiling or inside the shutter case 5, and the setting change operation can be easily performed within the reach. Although the limit switch that detects contact with a foreign object is used as the seat plate switch 3 in the above-described embodiment, the present invention is not limited to this, and a proximity switch that detects the proximity of a foreign object is used. Is also good.

[0022]

As described above, according to the present invention,
A transmitting means for detecting a collision of the seat plate switch with a foreign object and transmitting a control command for the shutter curtain is attached in the vicinity of the seat plate switch, and a transmission signal from the transmitting device is a remote control switch. Is received by the receiving means for receiving the transmission signal from Therefore, since it is not necessary to dispose two systems, that is, a remote control transmission / reception system and a seat plate switch detection signal transmission / reception system as in the prior art, it is possible to reduce the device scale, and a failure occurs accordingly. It is possible to reduce the cost and reduce the cost.

Further, the transmitting means is attached in the vicinity of the seat plate switch, and the operation when the seat plate switch collides with a foreign object can be set here. It is not necessary to operate the inside of the reception control panel placed inside, and the operation at the time of collision can be easily changed. Furthermore, when the seat plate switch collides with a foreign object and the seat plate switch is not released even though the shutter curtain is raised, an alarm is issued, so that the operator can immediately know the abnormal operation of the shutter. Like

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an electric shutter according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a detailed description of a transmission control device.

FIG. 3 is a flowchart showing the operation of this embodiment.

FIG. 4 is a timing chart showing operations during normal operation and abnormal operation.

FIG. 5 is a configuration diagram of a conventional electric shutter.

[Explanation of symbols]

1 Shutter curtain 3 Seat plate switch 4
Drive motor 9 Remote control switch 10 Antenna 11 Remote control receiver 12 Shutter control panel 13 Reception control panel 15
Floor detection switch 16 Transmission control device 17 Transmitter 18 Antenna 22 Repeat count setting circuit 26 Rise time timer 27 Abnormality judgment circuit 28 Abnormality alarm buzzer 29
Voltage monitoring circuit 30 Alarm buzzer 31 Transmission command section

Claims (2)

(57) [Claims] 1. A shutter curtain, a seat plate switch attached to the lowermost portion of the shutter curtain for detecting contact or proximity of foreign matter, a drive motor for opening and closing the shutter curtain, and control means for controlling the drive motor. When the remote control operation means for operating the opening and closing of the shutter curtain at a distance, a remote control receiving means for outputting to the control unit receives a radio signal transmitted from the remote control unit, mounted near the seat plate switch Controlling means for setting the operation of the shutter curtain when the seat plate switch detects contact or proximity to a foreign object the electric shutter with the control means, or contact with foreign matter in the seat plate switch
Or when the proximity is detected, the drive motor is temporarily stopped.
And then raise it, and after a predetermined time, lower the drive motor again.
Control, and also receives the wireless signal transmitted from the remote control operating means.
Remote control receiving means and the seat board switch near the
Receiving means for receiving a radio signal from the attached transmitting means
DOO safety device for an electric shutter having a remote control function, which is a same. 2. The control means, when receiving the detection signal from the seat plate switch and raising the drive motor,
The safety device for an electric shutter having a remote control operation function according to claim 1 , wherein an alarm is issued when a signal from the seat plate switch is not released for a predetermined time or longer.