JP2678304B2 - Shutter device - Google Patents

Description

The present invention relates to a shutter device, and in particular,
The present invention relates to a shutter device that detects and informs of an abnormal opening / closing state of a shutter, and stops the raising / lowering operation of the shutter when necessary.

[Conventional technology]

In the conventional electric shutter, the stop positions at the time of opening and closing are set by the upper limit switch for shutter opening stop and the lower limit switch for shutter closing stop (for the motor to raise or lower the shutter). (A cam receives rotation of the motor shaft via a gear, installs a limit switch that operates when the cam moves, and when the limit switch operates, shuts off the shutter motor power and stops the operating shutter.) . Therefore, each stop position in opening or closing the shutter is determined by the operation of the limit switch accompanying the rotation of the motor shaft for opening and closing the shutter and the movement of the cam.

[Problems to be solved by the invention]

In general, the shutter device has a structure in which the shutter slat part is susceptible to thermal expansion in the middle of summer, and when the shutter length changes or the shutter is flexed when the shutter is rolled up, left and right shifts occur, causing a skewed state. As a result, there is a problem that the stop position at the time of the shutter's maximum ascent and descent that is initially set and the operation timing of the limit switch for setting the stop position are deviated, and the shutter exceeds the set stop position. If it rises due to this, not only restoration work by shutter maintenance personnel is required, but also the building structure may be destroyed.

Also, if there is an obstacle on the shutter closing line, the descending operation will continue even if the shutter descends and the obstacle is strongly pressed against the floor line, so if left for a long time, the shutter device itself will be destroyed. However, there was a problem that the shutter was not closed completely, which caused an unfavorable situation in terms of crime prevention and disaster prevention.

Furthermore, when performing mechanical security, a detector such as a limit switch is installed at an arbitrary place such as near the ceiling surface to provide a means for notifying the shutter opening, and the movement of the shutter is detected. However, even if the shutter open sensing means is monitored after closing the shutter,
There is a problem in that it is not possible to detect the case where the shutter is released or the case where the shutter is opened below the shutter.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a stop position at the time of the highest and lowest shutters and a limit switch for setting the stop position. An object of the present invention is to provide a shutter device capable of monitoring a shift in operation timing and setting an appropriate stop position.

Another object of the present invention is to provide a shutter device that stops the descending operation halfway when an obstacle is present in the shutter closing line and the shutter is not completely closed, and further informs that it has stopped. is there.

Another object of the present invention is, after closing the shutter,
It is an object of the present invention to provide a shutter device that notifies the user when the lower part of the shutter is pryed open.

[Means for solving the problem]

In order to achieve the above object, the shutter device of the present invention is provided with a position sensing unit that senses a plurality of shutter positions on a shutter closing surface, and shifts to an operation mode in conjunction with shutter operation and is sent from the position sensing unit. The detection unit includes a detection unit that detects an abnormality in the opened / closed state of the shutter, and an abnormality alarm output unit that outputs an abnormality alarm signal based on a signal from the detection unit.

Further, the shutter device of the present invention may include a shutter stop portion that stops the shutter operation when the detection portion outputs.

Further, the shutter device of the present invention, when the closing by the shutter is completed, switches the shutter device to the security mode and outputs a security mode signal, a security mode switching device, a signal from the security mode switching device, and a signal from the position sensing unit. It may include a prying warning output section for outputting a prying warning.

[Action]

The present invention is configured as described above, and when an abnormality occurs in the opening / closing state of the shutter, the fact is detected and an alarm is issued to notify, and if necessary, the raising / lowering operation of the shutter is stopped during the operation. To do.

〔Example〕

 Embodiments will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a schematic front view showing the shutter device of the present invention in which the shutter is closed. In these figures, a shutter device 1 includes a position detection unit 2 that detects a plurality of shutter positions on a shutter closing surface, and a detection unit 4 that detects an abnormal open / closed state of a shutter based on a detection signal sent from the position detection unit 2. And a switch section 3 for switching the detection section 4 to an operation mode by interlocking with the shutter operation,
An abnormal alarm output unit 5 that outputs an abnormal alarm signal in response to a signal from the detection unit 4, a shutter stop unit 6 that stops the shutter operation when the detection unit 4 outputs, and a shutter after the shutter is closed. Security mode switching means 52 for switching the device to the security mode and outputting a security mode signal, and a prying warning output section 7 for outputting a prying warning by the signal from the security mode switching means 52 and the signal from the position sensing section 2. It is configured to include and.

Of these, the position sensing unit 2 is provided with a first upper position sensing means 12 installed so as to sense an upper position on a closed surface of the shutter 100, and is disposed below the first upper position sensing means 12 to close the shutter. First lower position sensing means 32 which senses a lower part of the surface and constitutes a pair of upper and lower position sensing means with the first upper position sensing means 12, and is sensed by the first upper position sensing means 12. The second upper position sensing means 22 which is installed so as to be able to detect another horizontal portion having the same height as the portion on the shutter closing surface and the portion on the shutter closing surface which is sensed by the first lower position sensing means 32. Second lower position sensing means installed at a high position
It consists of 92. Of these, position sensing means 12, 22, 32
Is an infrared projector, which is installed in a building structure on the front side of the shutter 100, and constitutes a detector, and a reflection seal disposed at a position on the shutter side facing the detector when the receiver and the shutter 100 are closed. 62, 72, 82, and the infrared rays projected from the infrared projector are reflected by the reflective stickers 62, 72, 82 on the shutter side, and the reflected wave at that time is received by the light receiver to position the shutter 100. Sense and detect. The second lower position sensing means 92 is composed of a reflective seal. The first upper position detecting means 12 and the second upper position detecting means 22 contribute to detecting the shift and position of the shutter 100. In addition, when the first upper position sensing means 12, the second upper position sensing means 22, and the first lower position sensing means 32 are in a sensing state (when sensing a reflected wave from a reflective seal), an ON state Is in the OFF state when not in the sensing state.

Further, the detection unit 4 monitors the time when the shutter 100 is moving with a timer and detects flip-flops FF16, 36, 46 and timer means 17, 37, 47 for opening abnormality and operation abnormality of the shutter 100, and a skewed state of the shutter. A skewed state determination circuit 23 for determining whether the first upper position sensing means 12 and the second upper position sensing means 22 do not perform position sensing substantially at the same time when the shutter moves. When the first upper position sensing means 12 and the first lower position sensing means 32 do not sense the position within a predetermined time by the timer means 17 and 37, and when the switch part 3 is closed. The alarm output unit 5 is configured to output an alarm signal when the shutter is not closed or opened.

The timer means 17, 37, 47 are respectively composed of timer driving portions 18, 38, 48 and timers 19, 39, 49, and the abnormality alarm output portion 5 includes an open abnormality alarm output means 20, a skew alarm. The output unit 30, the closing abnormality alarm output unit 40, and the operation abnormality alarm output unit 50 are included. The shutter stop unit 6 is composed of shutter emergency stop means 31, 41.

Now, when the shutter 100, which is closed as shown in FIG. 2 (the position detecting means 12, 22, and 32 are all in the ON state), starts the ascending operation manually or by the schedule control, the operation is interlocked with this operation. SW1, SW2, and SW3 of the switch unit 3 for shifting the detection unit 4 to the monitoring mode are turned on, and the shutter rising monitor is started. The flip-flop FF16 is in the reset state at the moment when the rise monitoring of the shutter 100 is started, and the positive-phase output terminal Q thereof has the logic "0".
When the shutter 100 rises from this state, the positions of the four reflective seals 62, 72, 82, 92 rise, and the first upper position sensing means 12 and the reflective seal 62, which are installed in a corresponding positional relationship, respectively. 2 upper position sensing means 22 and reflective seal 72,
The positional relationship between the third position sensing means 32 and the reflective seal 82 is deviated, and the outputs of the position sensing means 12, 22, 32 are turned off. Therefore, the condition of the AND gate 15 is satisfied, the flip-flop FF16 is set, the positive phase output terminal of the flip-flop FF16 becomes logic "1", and the logic "1" is given to the timer driving unit 18 constituting the timer means 17. The timer 19 is started to monitor the timer.
When the shutter 100 further rises from this state and the first upper position sensing means 12 senses the reflective seal 82, the first upper position sensing means 12 is temporarily turned on. Therefore, the flip-flop FF16 is in the reset state, the positive phase output terminal Q of the flip-flop FF16 becomes the logic "0", and the timer 19 stops operating. Thus, the rise time of the reflective seal 82 is monitored by a timer, and the first upper position sensing means 12
If the reset signal from is not input and the time is over, the opening abnormality warning output means 20 operates and outputs an opening abnormality warning signal (see FIGS. 3A and 3B).

Next, the operation when the shutter is closed will be described. When the shutter 100 starts descending, the operation mode switch unit 3 is turned on. When the shutter 100 further descends from this state, and the first upper position sensing means 12 senses the reflective seal 82 and turns on, the flip-flop FF36 is set and the positive-phase output terminal Q of the flip-flop FF36 is logical. When it becomes "1", the timer driving section 38 constituting the timer means 37 is given an opportunity to output the logic "1", and the timer 39 starts the timer monitoring. When the shutter 100 further descends from this state and the first lower position sensing means 32 senses the reflective seal 82, the flip-flop FF36 is reset and the positive-phase output terminal Q of the flip-flop FF36.
Becomes logic "0" and the timer 39 stops operating. Thus, when the descent time of the reflective seal 82 is monitored by a timer and the reset signal by the position sensing means 12 and the first lower position sensing means 32 is not input for a certain period of time, the closure abnormality alarm output means 40 outputs a closure abnormality alarm. Then, the shutter emergency stop means 31 is activated to stop the shutter 100 from descending (see FIGS. 4A and 4B).

Further, a monitoring operation when a skewed state occurs when the shutter is raised will be described. When the shutter 100 starts an ascending operation, the monitoring operation mode switch unit 3 is turned on in association with this operation. At this time, since the first upper position sensing means 12 and the second upper position sensing means 22 are in the ON state, the output of the first upper position sensing means is supplied to one input terminal of the AND gate 24, The output of the second upper position sensing means is supplied to one input terminal of the AND gate 25. However, since the output of the second upper position sensing means 22 and the output of the first upper position sensing means 12 are not input to the other input terminal of the AND gate 24 and the other input terminal of the AND gate 25, this result is In the state, the skew determination circuit does not work. From this state, the shutter 100 obliquely rises, and the reflection seal 82 by the first upper position sensing means 12
And a reflective seal by the second upper position sensing means 22
If the sensing of 92 is not performed at substantially the same time (if the first upper position sensing means 12 senses the reflective seal 82 but the second upper position sensing means 22 does not sense the reflective seal 92, 2) the upper position sensing means 22 senses the reflective seal 92, but the first upper position sensing means 12 does not sense the reflective seal 82), the AND gates 24, 2
Since there is an output from one of the output terminals 5 to the OR gate 26, the output from the skew feeding determination circuit 23 is supplied to the skew feeding warning output means 30 to output the skew feeding warning, and further the skew feeding warning output means 30. Is supplied to the shutter emergency stop means 31 to stop the shutter motor, and damage to the building structure can be minimized (see FIGS. 5A and 5B).

Furthermore, when the shutter 100 moves up and down,
If the shutter 100 is not raised while the operation mode switch unit 3 is in the ON state,
The operation when the descent is not performed will be described. At this time, since the input signal is not supplied to either one of the input terminals of the AND gate 45, the flip-flop FF46 is in the set state and the positive-phase output terminal of the flip-flop FF46 becomes the logic "1" to configure the timer means 47. The timer drive unit 48 is started to give an opportunity to output the logic "1", and the timer 49 starts the timer monitoring. In this case, since the reset signal is not input from this state and the time is over, the operation abnormality alarm output means 50 outputs the operation abnormality alarm (see FIGS. 6A and 6B).

Further, when the shutter device 1 is switched to the security mode by the security mode switching means 52 after completion of the closing by the shutter 100, even if there is a person who breaks the shutter 100 below the shutter 100, the output signal from the security mode switching means 52. Then, the output signal from the first lower position sensing means 32 is input to the prying warning output unit 7, and the prying warning output means 60 outputs a prying warning.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects.

It is possible to set an appropriate stop position by monitoring the difference between the stop position when the shutter is raised and lowered and the operation timing of the limit switch for setting the stop position.

Further, even when an obstacle exists in the shutter closing line and the shutter is not completely closed, it is possible to stop the descending operation on the way and to notify the stop.

Further, even if an unexpected situation such as the case where the lower side of the shutter is pryed open after the shutter is closed, the fact can be notified, which is effective for crime prevention.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a schematic front view of a shutter device in which the shutter is in a closed state, FIG. 3A is a time chart explaining the operation at the time of normal opening, and FIG. Time chart explaining the operation at the time of abnormal opening, FIG. 4A is a time chart explaining the operation at the time of normal closing, FIG. 4B is a time chart explaining the operation at the time of abnormal closing, and FIG. 5A and FIG. 6B is a time chart explaining the operation when a row alarm is output, and FIG. 6A is a time chart explaining the operation when an operation is abnormal due to the shutter not rising.
The figure is a time chart for explaining the operation when the operation is abnormal due to the shutter not descending. 1 ... Shutter device, 2 ... Position sensing unit 3 ... Switch unit, 4 ... Detection unit 5 ... Alarm output unit, 6 ... Shutter stop unit 7 ... Prying alarm output unit

Claims (5)

(57) [Claims] 1. A position sensing part (2) for sensing a plurality of shutter positions on a shutter closing surface, and a shutter which is shifted to an operation mode in association with a shutter operation and which is sensed by the position sensing part (2). A shutter device comprising a detection unit (4) for detecting an abnormality in the open / closed state of the device, and an abnormality alarm output unit (5) for outputting an abnormality alarm signal according to a signal from the detection unit (4). 2. A position sensing part (2) for sensing a plurality of shutter positions on a shutter closing surface, and a shutter which is shifted to an operation mode in conjunction with shutter operation and which is sensed by the position sensing part (2). The position sensing unit (2) includes a detection unit (4) for detecting an abnormality in the open / closed state of the device, and an abnormality alarm output unit (5) for outputting an abnormality alarm signal according to a signal from the detection unit (4). ) Is a pair of upper and lower first upper position sensing means (12) and a first lower position sensing means (32) provided on one side of the shutter, and a shutter sensed by the first upper position sensing means (12). The 2nd, which is installed so that another horizontal part of the same height as the sensing part on the closed surface can be detected
Upper position sensing means (22) and second lower position sensing means (92) installed at the same height as the sensing site on the shutter closing surface sensed by the first lower position sensing means (32). A shutter device comprising: 3. A position detector (2) for detecting a plurality of shutter positions on a shutter closing surface, and a detector (4) for detecting an abnormal open / closed state of the shutter based on a detection signal sent from the position detector (2). ), A switch unit (3) for switching the detection unit (4) to an operation mode in conjunction with shutter operation, and an abnormality alarm output unit (5) for outputting an abnormality alarm signal in response to a signal from the detection unit (4). ) And a first upper position detecting means (12) installed so that the position detecting section (2) can detect an upper position on the shutter closing surface, and the first upper position detecting means (12). A first lower position sensing means (32) which is arranged below the shutter closing surface to sense a lower portion of the shutter closing surface and constitutes a pair of upper and lower position sensing means with the first upper position sensing means (12). , Above the first A second upper position detecting means (22), which is installed so as to be able to detect another horizontal portion having the same height as the portion on the shutter closing surface detected by the position detecting means (12), and the first lower position detecting means ( 32) Installed at the same height as the part of the shutter closing surface sensed by 32)
Timer means (17, 37, 37, 37) for detecting the shutter opening time, shutter closing abnormality, and operation abnormality by monitoring the time when the shutter is moving by a timer. 47) and a skewed state determination circuit (23) for determining the skewed state of the shutter, and the first upper position sensing means (12) and the second upper position sensing means (12) when the shutter is moved. 22) does not perform position sensing substantially at the same time, the first upper position sensing means (12) and the first lower position sensing means (32) have a time predetermined by the timer means (17, 37). The alarm output unit (5) outputs an alarm signal when the position is not sensed inside and when the shutter is not closed or opened when the switch unit (3) is closed. Characterized by Yatta apparatus. 4. A position sensing unit (2) for sensing a plurality of shutter positions on a shutter closing surface, and a shutter which is shifted to an operation mode in conjunction with shutter operation and which is sensed by the position sensing unit (2). There is a detection unit (4) for detecting an abnormality in the open / closed state of the device, an abnormality alarm output unit (5) for outputting an abnormality alarm signal according to a signal from the detection unit (4), and an output from the detection unit (4). Sometimes, a shutter device including a shirt stopper (6) for stopping the shutter operation. 5. A position sensing unit (2) for sensing a plurality of shutter positions on a shutter closing surface, and a sensing signal sent from the position sensing unit (2) to shift to a starting operation mode in conjunction with shutter operation. A detection unit (4) for detecting an abnormality in the open / closed state of the shutter, an abnormality warning output unit (5) for outputting an abnormality warning signal in response to a signal from the detection unit (4), and a shutter device after closing the shutter. Security mode switching means (52) for switching to the security mode and outputting a security mode signal, and a prying warning that outputs a prying alarm by a signal from the security mode switching means (52) and a signal from the position sensing unit (2). A shutter device including an alarm output unit (7).