JPS63130891A - Safety shutter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to, for example, a CD service corner equipped with an automatic teller machine in a cash handling office such as a bank, a store such as a department store, or a warehouse.

Power-operated (e.g. electric) shutters installed at the entrances and exits of buildings such as factories, garages, etc. Not only can they be opened and closed manually, but they can also be automatically opened and closed using program control or remote control from a management center. In addition, since such an unmanned automatic opening/closing control method is adopted, the unmanned automatic opening/closing control can be performed based on the detection result of the presence or absence of occupants (persons remaining in the building). It relates to a safety shutter configured to be able to operate safely, and more specifically, when an obstacle detector provided at the lower end of the shutter curtain issues an obstacle detection signal during the lowering operation of the shutter curtain. , relates to a safety shutter configured to control the lowering operation of the shutter curtain to emergency stop.

[Conventional technology]

As a conventional safety shutter of this type, there is one already proposed by the applicant of the present invention, for example, in Japanese Patent Publication No. 54-25745 related to Japanese Patent Application No. 49-120535.

That is, in the conventional safety shutter, the presence of an obstacle such as luggage is detected on the lower surface side of the lower part (seat plate) of the shutter curtain, which is driven up and down by the shutter opening/closing controller, over almost the entire length in the longitudinal direction. An obstacle detector configured to emit an obstacle detection signal when
An example of this is shown in FIGS. 2 to 5, which will be described later.
(Please refer to the following), and
As schematically shown in Figure 8, when the main control device for the shutter opening/closing controller receives a closing command signal from the operation switch or automatic control, it operates the lowering control circuit to open the shutter curtain. During the control to lower the shutter curtain to the lowest position (fully closed state) where the lower limit detection signal is detected, the obstacle detector generates an obstacle detection signal indicating that an obstacle exists below the shutter curtain. When this occurs, an emergency processing control circuit is activated in place of the lowering control circuit to immediately stop the lowering operation of the shutter curtain, or the shutter curtain can be stopped within a range where the load on the shutter opening/closing machine is not a problem. The system was configured to perform emergency processing control such as repeating a series of operations of emergency stop, reverse up, and reverse down until the obstacle is removed and the obstacle detection signal is no longer emitted.

In FIG. 8, 031 is a switch that is turned ON by the closing command signal, and OS2 is a switch that is turned OFF by a lower limit detection signal from a lower limit detection sensor indicating that the shutter curtain has lowered to the lowest limit.
Further, 053 indicates a switch which is switched from the lowering control circuit side to the emergency processing control circuit side in response to the obstacle detection signal.

[Problem that the invention seeks to solve]

According to the safety shutter of the conventional configuration described above, even if an obstacle exists below the shutter curtain during the lowering operation of the shank curtain, the obstacle detector reliably detects the obstacle and removes it. Since the lowering operation of the shutter curtain is immediately stopped in an emergency, the safety function of preventing damage to the shutter itself and obstacles such as luggage is fully demonstrated, so it is possible to ensure safety regarding such obstacles. There's no problem then.

However, as a result of various detailed considerations regarding the configuration of the conventional safety shutter, the inventor of the present invention has noticed the following points.

That is, as is clear from FIG. 8, the obstacle detection signal from the obstacle detector is applied only during the lowering operation of the shutter curtain, that is, the closing command signal is given.
In addition, it only has meaning in a state where the lower limit detection sensor does not emit a lower limit detection signal indicating that the shutter curtain has lowered to the lowest limit. In this state, even if the obstacle detector emits an obstacle detection signal, no processing control is performed on it, and this is not just a waste; rObstacle detection in fully closed state J
It should be said that completely ignoring the meaning of this information is itself a very serious mistake.

The present invention has been made based on the above-mentioned conventional circumstances and considerations, and its purpose is to prevent obstacles that are originally provided in order to ensure safety regarding obstacles during the lowering operation of the shutter curtain. By effectively using the obstacle detection signal from the detector not only during the lowering of the shutter car and marquee, but also when the shutter curtain is fully closed, it is a highly value-added product with even more meaningful safety functions. The objective is to realize a safety shutter economically.

Means for Solving Problem c] In order to achieve the above object, the safety shutter according to the present invention, as schematically shown in the diagram corresponding to the claims in FIG. A safety shutter configured to control the lowering operation of the shutter curtain to emergency stop when an obstacle detector provided at the lower end of the shutter curtain issues an obstacle detection signal, When the obstacle detector emits an obstacle detection signal in the shutter fully closed state where the shutter curtain is lowered to the lowest limit, the obstacle detection signal is regarded as an intruder detection signal and a predetermined pair is detected. It is characterized in that it is configured to perform intruder processing control.

In addition, in FIG. 1, Sl is set to O by the closing movement command signal.
N indicates a switch means that operates, and S2 is a normal lowering control means (lowers the shutter curtain to the lowest limit and fully closes the shutter) in response to a lower limit detection signal from a lower limit detection sensor indicating that the shutter curtain has lowered to the lowest limit. The intruder detection signal output means (for example, activates a communication device to report the presence of an intruder to a control center or police station, or activates an alarm drive circuit to generate a buzzer, etc.). S3 shows a switch means that switches to the control means) side that activates the alarm, and S3 is
In response to the obstacle detection signal from the obstacle detector, the normal descent control means side controls the emergency processing control means (for example, a control that repeats a series of operations of emergency stop, reverse up, and reverse down until the obstacle detection signal is no longer emitted) SO indicates a switch means which is switched to the above-mentioned obstacle detection signal.

[Effect]

The effects achieved due to this characteristic configuration are as follows.

That is, according to the safety shutter according to the present invention, as will become clearer from the description of the embodiments described below,
If the obstacle detector detects the presence of an obstacle while controlling the shutter curtain to lower, the lowering operation of the shutter curtain is immediately stopped and the shutter itself, luggage, etc. are obstructed. Of course, the initial basic safety function of reliably preventing damage to property is provided, but when the shutter curtain is fully closed, an intruder can use a crowbar, jack, etc. When an attempt is made to pry open the shutter curtain (by inserting it between the board and the floor), the obstacle detector emits an obstacle detection signal,
In addition, the obstacle detection signal is regarded as an intruder detection signal, and predetermined anti-intruder processing is carried out, such as reporting the presence of an intruder to a management center or police station, or activating an alarm such as a buzzer. Control is executed immediately.

In other words, the obstacle detector, which was originally installed to ensure the safety of obstacles during the shutter curtain's lowering operation, is now effectively used even when the shutter curtain is fully closed, making it extremely difficult to intrude. Compared to installing an intruder alarm, it is not only possible to add an additional safety function (anti-intruder alarm function) with a very simple and economically advantageous configuration, but also prevent intruders from entering the building, for example. Compared to installing an intruder alarm, it is possible to detect an intruder at the initial stage when the intruder attempts to intrude (in other words, before the intruder has succeeded in entering the building), and take countermeasures against the intruder. Therefore, it is possible to minimize damage to buildings and the safety shutter itself, and it is also extremely beneficial in terms of stabilizing society by preventing crime.

〔Example〕

Specific embodiments of the present invention are shown below in the drawings (Figures 2 to 7).
The explanation will be based on Figure).

2 to 5 show the specific structure of a safety shunter according to an embodiment installed at the entrance of building X, such as a CD service corner of a bank, and FIG. 6 shows its overall system configuration, and , FIG. 7 shows the block circuit configuration of the main part.

In FIGS. 2 and 3, 1 is a shutter curtain whose winding is driven up and down, 2 and 2 are left and right guide rails for the shutter curtain 1, and 3 is a shutter case. A 5V44A for winding the shutter curtain l is rotatably mounted on a shaft, and a shutter opening/closing machine 5 (forward/reverse electric (composed of a motor 5A and a transmission 5B) is provided. The shutter opening/closing device 5 is configured to be controlled by a main control Hc installed in a control panel via a shutter opening/closing control device A. Further, B is a manually operated switch provided on the wall surface of the room, and is connected to the main controller C, and includes a push button for an opening command, a push button for a stop command, and a push button for a closing command. Further, D and E are a speaker device and an alarm device controlled by the main control bag 2C, the speaker device is composed of a speaker drive circuit 6 and a speaker 7, and the alarm device E is an alarm device drive circuit 8 and an alarm device. (buzzer in this example) 9. Further, the main control device C is a communication device F on the building X side.
It is also connected to the central control device H on the management center Y side via the communication device G on the management center Y side, and
It is also connected to an alarm device I at a predetermined crime prevention agency such as a police station via a side communication device F. Said management center Y
In order to be able to carry out automatic or manual remote centralized management of a large number of buildings X, for example, by contracting with a security specialist company etc., It is installed.

Furthermore, on the lower surface side of the seat plate IA of the shutter curtain 1, which covers almost the entire length in the longitudinal direction, an obstacle is basically formed when the presence of the obstacle S is detected during the lowering operation of the shutter curtain 1. An obstacle detector 1O is attached which has a function of emitting a signal and is configured to function as an intruder detector when the shutter curtain 1 is fully open as described later. That is, in this example, the obstacle detector 10 forms a space 11 having a predetermined (slight) vertical interval on the lower surface side of the seat plate IA of the shutter curtain l, as shown in detail in FIG. At the same time, an exterior member 12 made of a flexible material such as rubber is attached, and terminal plates 13.
As shown in FIG. 5, no matter which part of the obstacle detector IO comes into contact with the obstacle S, The part of the exterior member 12 that comes into contact with the obstacle S
By pressing upward and deforming, both the upper and lower terminals Fi13, 14 are pressed together and an obstacle detection signal is generated. The obstacle detection signal emitted by the obstacle detector 10 is transmitted to a wireless transmitter (light emitting device in this example) 15 installed on the upper surface of the seat plate IA and the shutter case 3 opposite thereto. It is configured to be transmitted to the main control device C via a wireless receiver (in this example, a light receiver) 16 installed on the bottom surface, and as will be described in detail later, when the shutter curtain l is lowered. During operation, this obstacle detector 10
When the shutter curtain L issues an obstacle detection signal due to the presence of an obstacle S, the lowering operation of the shutter curtain L is immediately stopped in an emergency. Note that the obstacle detector 10 is not limited to the one having the above-mentioned configuration, but may have other configurations, such as one that detects changes in capacitance or resistance due to contact with the obstacle S. You may use it.”

Furthermore, as shown in FIG. 2, a sensor (in this example, a limit switch) Ll is mounted on one of the left and right guide rails 2.2 to detect the position (lower end height) of the shutter curtain L. .

L2. L3. L4 is provided. That is, Ll is an upper limit position detection sensor for detecting that the shutter curtain l has risen to the upper limit (fully open state C,);
2 is a lower limit position detection sensor for detecting that the shutter curtain 1 has descended to the lower limit, and L3 is a lower limit height Hl of the shutter curtain 1 (for example, about 1 to 1.5 m that a person can pass through). L4 is a lower setting position detection sensor for detecting that the shutter curtain 1 has been lowered to the upper setting height H.
2 (for example, 20 to 30
This is an upper setting position detection sensor for detecting that the position has risen to a position approximately 1.5 cm higher (about 1.5 cm higher). The detection signal from L4 is configured to be transmitted and input to the main control device C.

Of these, the upper limit position 1 detection sensor Ll is used for the natural control of unconditionally stopping the raising operation when the shutter curtain 1 rises to the fully open state, and the lower limit position detection sensor L2 is used for the natural control of stopping the lowering operation when the shutter curtain 1 is lowered to the lower mold state, and the remaining lower set position detection sensor L3 and upper set position detection sensor As described later, L4 is
It is used in the emergency processing control circuit,
If the upper limit position detection sensor LL is also used as the upper setting position detection sensor L4, the upper setting position detection sensor L4 can be omitted. Both the position detection sensor L3 and the upper set position detection sensor L4 can be omitted.

Furthermore, as shown in FIG. 3, in order to detect whether or not a person remains inside the room inside the safety shutter (inside building A room occupancy detector 17 (however, other types such as an ultrasonic detection sensor or a phototube may be used) is installed in the building 11 is configured to be transmitted and input to device C.

The components (members) described above are connected as shown in the overall system configuration diagram of FIG. 6, and the main control configuration and operation of the main controller C in this system configuration are shown in FIG. 7. As shown in the detailed block circuit configuration diagram.

That is, as shown in FIG. 7, the main control device C serves as a basic control circuit and controls the operation by manual operation of the operation switch B or by remote instructions from the management center Y via the communication device F. Closing command signal, opening command signal,
A normal descent control circuit 1 a normal rise control circuit 1 a normal stop control circuit are provided for performing normal downward drive control, upward drive control, and drive stop control for the shutter curtain 1 in response to a stop command signal. When performing lowering control for the shutter curtain 1, an emergency processing control circuit (■) is used to perform processing control in the event that a person remains in the building X, or an obstacle exists below the shutter curtain 1. emergency processing control circuit ■ for controlling processing when the emergency processing control circuit ■, When the shutter curtain 1 is fully closed and an obstacle detection signal is given by the obstacle detector IO, the obstacle detection signal is used to detect an intruder. An intruder detection signal output circuit is provided to output a signal, and the following switches are connected to each circuit so that each circuit can be activated selectively depending on the situation. There is.

That is, in FIG. 7, Sl is a switch that is turned ON by a closing command signal, and S2 is a switch that is turned on when the lower limit detection sensor L2 gives a lower limit detection signal indicating that the shutter curtain 1 has been lowered to the lower limit. , S3 is a switch that normally switches from the lowering control circuit side to the intruder detection signal output circuit side, and S3 is a switch that switches from the normal descent control circuit side to the intruder detection signal output circuit side.
SO is a switch that switches from the normal descent control circuit side to the emergency processing control circuit side when an obstacle detection signal is given, and SO is a switch that is turned ON by the obstacle detection signal; In step S4, when the occupant detector 17 gives a occupant detection signal indicating that a person remains in the building S5 is a switch that switches to 1gi! When a time-up signal indicating that the processing control by the emergency processing control circuit (■) has not been completed even after a predetermined period of time has passed is given by a timer (not shown) built in the main controller C, the emergency processing control circuit It is a switch that switches from the side to the abnormality notification signal generation circuit side, and the SO is a switch that switches from the side to the abnormality notification signal generation circuit side. This is a switch that switches from the emergency processing control circuit ■ side to the abnormality notification signal generation circuit side when
is a switch that is turned ON by an opening command signal to normally operate a rise control circuit, and S8 is a switch to which an upper limit detection signal indicating that the shutter curtain 1 has been raised to the upper limit is given by the upper limit detection sensor L1. Sometimes O
This is a switch that operates as an FF, and S9 is a switch that is turned on in response to a stop command signal to operate a normal stop control circuit.

According to the above configuration, when the closing operation command signal is given, the switch S1 is turned on, and the switches S7 and S
9 is in the OFF state), and if there is no problem (if no occupants or obstacles are detected), the switches S3 and S4 are switched to the normal lowering control circuit, so the normal lowering control circuit is activated and the shutter is closed. The alarm (buzzer) 9 is activated by the alarm drive circuit 8 until the lower limit detection signal from the lower limit detection sensor L2 indicating that the curtain 1 has been lowered to the lowest limit is given and the switch S2 is switched to the intruder detection signal output circuit side. While operating, the shutter opening/closing controller 5 is controlled to lower the shutter curtain l to the lowest limit and fully close the shutter.

However, even though the closing command signal has been given, if the occupant detector 17 gives an occupant detection signal indicating that a person remains in the building X, the switch is turned off. Since S4 is normally switched from the lowering control circuit side to the emergency processing control circuit ■ side, the emergency processing control circuit ■ is activated.
First, while the alarm drive circuit 8 operates the alarm (buzzer) 9, the shutter opening/closing controller 5 moves the shutter curtain 1 to the lower set height Hl shown in FIG.
(until the lower setting position detection sensor L3 is activated,
or until an equivalent period of time has elapsed), and then temporarily stopped at the lower setting position (for a predetermined period of time: about 10 seconds, for example), and the speaker drive circuit 6 operates the speaker 7, e.g. It's closing time, so the shutter will close automatically.
Please leave the shrine immediately.'' After that, the alarm drive circuit 8 activates the alarm (buzzer) 9 again, and the shutter opening/closing controller 5 closes the shutter curtain l. Up to the upper set height H2 shown in the figure (upper set position detection sensor L4
is activated or until an equivalent period of time has elapsed), and then stopped again at the upper setting position (for a predetermined period of time: for example, about 10 seconds),
The speaker car drive circuit 6 activates the speaker 7 to repeatedly make an announcement such as "The shutter will be completely closed soon, so please leave immediately" to urge customers to leave. be done.

If the guest leaves the room promptly by such a control operation, the occupant detection signal from the occupant detector 17 is no longer given, and the switch S4 returns to the normal lowering control circuit side, and the above-mentioned normal operation is performed. The lowering control lowers the shutter curtain 1 to the lowest limit and closes the shutter safely, but if the above-mentioned emergency processing control operation continues for a predetermined period of time (e.g., several minutes), (determined by the negative limit, laws, regulations, regulations, etc.) The guest does not leave the room even after repeated attempts (The occupant detection signal from the occupant detector 17 does not disappear and the switch S4 switches to the emergency processing control circuit ■ side.) If an abnormal situation occurs, the switch S5 is switched to the abnormal i1M signal generation circuit side by the time-up signal from the timer, and the abnormality notification signal generation circuit is activated, and only then can the problem be resolved. The occurrence of an abnormality due to a person remaining in the room is reported to a predetermined organization such as the management center Y via the communication device F.

Further, during the lowering of the shutter curtain l to the lowest position by the normal lowering control circuit described above, an obstacle detection signal is generated by the obstacle detector 10 indicating that an obstacle exists below the shack-curtain 1. is given, the switch S3 is normally switched from the lowering control circuit side to the emergency processing control circuit (■) side, so the emergency processing control circuit (■) is activated and first immediately stops the lowering operation of the shutter curtain 1. Then, while the alarm drive circuit 8 operates the alarm (buzzer) 9, the shutter opening/closing controller 5 moves the shutter curtain 1 to the upper limit position (the upper limit position detection sensor L shown in FIG. 2 above).
1) and fully open the shack,
After this, the shutter opening/closing controller 5 lowers the shutter curtain 1 while the alarm drive circuit 8 operates the alarm (buzzer) 9 again, and the shutter curtain 1 is lowered.

If an obstacle is removed while performing such a control operation, the obstacle detection signal from the obstacle detector 1o is no longer given, and the switch S3 returns to the normal lowering control circuit side, and the above-mentioned operation is performed. Normally, the shutter curtain 1 is lowered to the lowest limit by the lowering control, and the shutter is fully closed. However, if the above-mentioned emergency processing control operation is performed for a predetermined period of time (for example, several minutes) (Determined from the load limit of MOKU 5A) The obstacle is not removed even after repeated attempts (The obstacle detection signal from the obstacle detector 1o does not disappear and the switch s3 remains switched to the emergency processing control circuit ■ side) Abnormality When a situation occurs, the switch s6 is activated by the time-up signal from the timer to indicate the abnormality i! It is switched to the alarm signal generation circuit side and the abnormality alarm signal generation circuit is activated, and only then.
The occurrence of an abnormality due to the presence of an unresolved obstacle is reported to a predetermined organization such as the management center Y via the communication device F.

In addition, when the shutter curtain l is fully closed and lowered to the lowest limit, the lower limit detection sensor L2 is emitting a lower limit detection signal, and the switch S2 is switched to the intruder detection signal output circuit side, the obstacle detector When an obstacle detection signal indicating that some object has been forced into the lower part of the shutter curtain l is given from 10, the switch SO is turned ON, and the obstacle detection signal becomes an intruder detection signal. As a result, the intruder detection signal output circuit outputs an intruder detection signal to the communication device F and activates it, thereby indicating that there is an intruder at the control center Y, police station, etc. At the same time, an intruder detection signal is output to the alarm drive circuit 8, which activates the alarm 9 such as a buzzer, and also sends an intruder detection signal to the speaker drive circuit 6. By outputting and activating it, you can say through speaker 7, for example, ``This building is fully guarded, your actions have already been reported to the police.''
Predetermined anti-intruder processing control is performed, such as making a warning announcement for intruders.

When the opening command signal is given, the switch S7 is turned on and the switches s1 and S9 are turned off), and the normal rise control circuit is activated, indicating that the shunter curtain l has risen to the maximum limit. The lower limit detection signal from the upper limit detection sensor Ll is applied, and the switch s8 is turned to O.
Until the FF is activated, while the alarm drive circuit 8 operates the alarm (buzzer) 9, the shutter opening/closing controller 5 is controlled to raise the shutter curtain l to the maximum limit and fully open the shutter.

In addition, when a stop command signal is given, the switch S
9 is turned ON and switches s1 and S7 are turned OFF), the normal stop control circuit is activated, and the shutter curtain l is activated immediately and unconditionally, regardless of whether it is being raised or lowered. It is controlled so that it stops.

Note that the main control device C (control panel) is a CPU.

By configuring the system using a memory or the like, various controls similar to those described above can be easily realized by software, and it is also possible to pre-store a control program corresponding to the annual business schedule in the memory. It is also possible to construct an automatic driving system or various more advanced control systems through two-way communication with the management center Y.

〔Effect of the invention〕

As is clear from the detailed description above, according to the safety shutter of the present invention, the obstacle detector emits an obstacle detection signal when the shack is fully closed, with the shutter curtain lowered to the lowest limit. Sometimes, the obstacle detection signal is used as an intruder detection signal (a detection signal indicating that an intruder is trying to forcibly open the shutter curtain).
The obstacle detector is configured to perform predetermined anti-intruder processing control based on the assumption that the shank-curtain is being lowered. By effectively using the intruder alarm even when the shutter curtain is fully closed, an intruder alarm system can be created with a much simpler and more economical configuration than installing a special intruder alarm. Not only can it add additional safety functions, for example, compared to installing an intruder alarm inside a building, it can be used to prevent intruders from entering the building. ), the intrusion can be quickly detected and countermeasures can be taken, so damage to buildings and safety shutters themselves can be minimized, and crime can be prevented beforehand, greatly contributing to the stabilization of society. can,
This excellent effect has been achieved.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram (diagram corresponding to claims) showing the basic configuration of a safety shutter according to the present invention. 2 to 7 show safety shutters according to specific embodiments, FIG. 2 is a partially broken schematic rear view, FIG. 3 is a partially broken schematic side view, and FIG. 4 is a partially broken schematic side view. FIG. 5 is an enlarged longitudinal sectional view for explaining the operation of the main part;
FIG. 6 is a diagram showing the overall system configuration, and FIG. 7 is a detailed block circuit diagram of the main parts thereof. FIG. 8 is a schematic diagram showing the control configuration of a conventional safety shutter, for explaining the technical background of the present invention and the problems of the prior art. 1... Shutter curtain, 10... Obstacle detector.

Claims (1)

[Claims] When the obstacle detector provided at the lower end of the shutter curtain emits an obstacle detection signal during the lowering operation of the shutter curtain, the lowering operation of the shutter curtain is urgently stopped. The safety shutter is configured to control the safety shutter, and when the obstacle detector emits an obstacle detection signal in the shutter fully closed state where the shutter curtain is lowered to the lowest limit, the obstacle detection signal is activated. A safety shutter characterized in that it is configured to perform predetermined anti-intruder processing control by regarding a signal as an intruder detection signal.