JP6219128B2 - Shutter device - Google Patents

Description

  The present invention relates to a shutter device that detects an obstacle to a shutter curtain that opens and closes an opening.

  Conventionally, by making the opening 1 provided in various buildings fully closed in the event of a fire, an electric fire / smoke-proof shutter device that forms a fire / smoke-proof section in this building has become widespread. Yes. FIG. 17 is a diagram conceptually showing such a conventional shutter device 100 and a fire alarm system 110 linked to this shutter device. The shutter device 100 is generally configured to include a shutter curtain 101, an opening / closing device 102, an automatic closing device 103, a manual closing device 104, and an interlocking relay 105. On the other hand, the fire alarm system 110 includes a fire detector 111 and a disaster prevention panel 112. In a normal state, when the user operates the manual closing device 104, the opening / closing machine 102 rotates a winding shaft (not shown) around which the shutter curtain 101 is wound, and the shutter curtain 101 is raised or lowered electrically. . Further, when a fire is detected by the fire detector 111, a fire detection signal is output from the fire detector 111 to the disaster prevention panel 112, and a transfer signal is output from the disaster prevention panel 112 to the interlocking relay 105. Then, the automatic closing device 103 releases the brake of the switch 102 based on the control signal from the interlock repeater 105, so that the shutter curtain wound around the take-up shaft is lowered by its own weight, and the fire-proof / smoke-proof section. Form.

  Further, the shutter device 100 is provided with an obstacle detection device (hazard prevention device) 120. The obstacle detection device 120 stops the descent of the shutter curtain 101 when the shutter curtain 101 comes into contact with the obstacle when the shutter curtain 101 is lowered by electric power or its own weight to close the opening 1. This is to prevent harming the obstacle. The obstacle detection device 120 is generally configured to include a seat plate switch 121, a signal line 122, and a cord reel 123. The seat plate switch 121 detects that the seat plate 106 provided at the lower end portion of the shutter curtain 101 is in contact with an obstacle, and outputs a detection signal when the contact is detected. The signal line 122 is a line that connects the seat plate switch 121 and the interlock repeater 105 so that wired communication is possible. When the interlock repeater 105 receives the detection signal of the seat switch 121 via the signal line 122 while the shutter curtain 101 is descending, it outputs a control signal to the switch 102 to operate the brake. Then, the descent of the shutter curtain 101 is stopped. The cord reel 123 winds the signal line 122 so that the unwinding length of the signal line 122 is always maintained at an appropriate length even when the seat switch 121 moves up and down as the shutter curtain 101 is opened and closed. Taking up or unwinding is performed (for example, refer to Patent Document 1).

  Furthermore, in recent years, an apparatus that performs radio wave communication has been proposed as an obstacle detection apparatus (see, for example, Patent Document 2). This obstacle detection apparatus is schematically configured to include a transmitter and a receiver in place of the signal line 122 and the cord reel 123 in the configuration of the above-mentioned Patent Document 1 shown in FIG. The transmitter is disposed near the seat plate switch 121 in the shutter curtain 101 (mainly, the position on the upper surface of the seat plate), and the obstacle detection state signal including the detection result of the seat plate switch 121 is transmitted as a radio wave. Transmit by radio. The receiver is arranged in the vicinity of the interlock repeater 105, and outputs an obstacle detection state signal transmitted by the transmitter to the interlock repeater 105. When the seat switch 121 detects that the lower end of the shutter curtain is in contact with an obstacle, the detection signal is communicated from the transmitter to the receiver by radio waves. The descent of the shutter curtain is stopped by outputting a control signal to the machine and operating the brake.

JP 2006-233608 A JP 2001-317278 A

  Here, when a receiver or a transmitter is provided in the shutter device in this way, there is a possibility that these receiver or transmitter may physically interfere with other mechanisms or parts of the shutter device. . For example, the transmitter is wound up together with the shutter curtain when the shutter curtain is fully opened, and various mechanisms and parts are conventionally arranged around the position at the time of winding up. As such a mechanism or component, specifically, a guiding means such as a smoother for guiding the shutter curtain to move along a predetermined direction from the rotation axis of the shutter curtain to the lintel opening is arranged. Yes. Therefore, there is a possibility that the transmitter wound up together with the shutter curtain may physically interfere with such guiding means, which may reduce the functionality of the shutter device.

  The present invention is for solving the above-described problems in the prior art, and is capable of reducing the possibility of physical interference between the transmitter and the guiding means when the shutter curtain is fully opened. The purpose is to provide.

In order to solve the above-described problem and achieve the object, the shutter device according to claim 1 is a shutter device that detects an obstacle to the shutter curtain that opens and closes the opening, and the shutter device closes the shutter curtain. An obstacle sensor that detects that an obstacle that becomes an obstacle is present in the opening, and an obstacle detection state signal that includes information indicating an obstacle detection state by the obstacle sensor are transmitted wirelessly. A first communication means having one antenna, a second communication means having a second antenna for wirelessly receiving the obstacle detection state signal, and the obstacle detection state signal received by the second communication means. Control means for controlling opening and closing of the shutter curtain by controlling a rotating means for winding or unwinding the shutter curtain, and the shutter Guidance means for guiding the martens to move along a predetermined direction from the turning means to the lintel opening, and when the shutter curtain is fully open, the guidance means and the first communication means The first communication means is arranged so that the first and second communication means are not in contact with each other, and the first communication means and the guiding means are arranged at positions that do not overlap in a plan view when the shutter curtain is fully opened.

Further, the shutter device according to claim 2, in the shutter device according to claim 1, and said inductive means and said first communication means, at the time of full opening of the shutter curtain, the side surface of the at least one lateral They were placed at overlapping positions on the eye.

  According to a third aspect of the present invention, there is provided the shutter device according to the first or second aspect, wherein the shutter device is an abnormality detection means for detecting a situation in which the shutter curtain is opened and closed beyond a specified range. An abnormality detection unit disposed at a position closer to the rotation unit than the opening; and when the shutter curtain is fully opened, the first communication unit is located at a position where the abnormality detection unit and the first communication unit are not in contact with each other. Arranged.

  According to a fourth aspect of the present invention, there is provided the shutter device according to the third aspect, wherein the first communication unit and the abnormality detection unit do not overlap in plan view when the shutter curtain is fully opened. And it has arrange | positioned in the position which overlaps on the side view from at least one side surface direction.

  The shutter device according to claim 5 is the shutter device according to any one of claims 1 to 4, wherein the first communication unit is disposed within a predetermined distance of the guide unit in plan view. did.

According to the shutter device of the first aspect, since the first communication unit is disposed so that the guide unit and the first communication unit do not contact when the shutter curtain is fully opened, the first communication unit when the shutter curtain is fully opened. It is possible to reduce the possibility of physical interference between the communication means and the guidance means, and it is possible to prevent problems that may occur due to such interference.
In addition, since the first communication unit and the guide unit are arranged at positions that do not overlap in plan view, it is necessary to secure a space below the guide unit so as not to contact the first communication unit and the guide unit. Therefore, a space-saving shutter device can be configured.

According to the shutter device according to claim 2, the guide means and the first communication unit, since it is positioned so as to overlap on the side view of at least one side, an inductive means and first communication means It is not necessary to secure a space for preventing contact below the guiding means, and a space-saving shutter device can be configured.

  According to the shutter device of the third aspect, since the first communication means is arranged so that the abnormality detection means and the first communication means do not contact when the shutter curtain is fully opened, the first communication means when the shutter curtain is fully opened. It is possible to reduce the possibility of physical interference between the one communication unit and the abnormality detection unit, and it is possible to prevent problems that may occur due to such interference.

  According to the shutter device of claim 4, the first communication unit and the abnormality detection unit are arranged at positions that do not overlap in plan view, and at positions that overlap at least in one side view. Therefore, it is not necessary to secure a space for preventing the first communication unit and the abnormality detection unit from contacting each other, for example, below the abnormality detection unit, and a space-saving shutter device can be configured.

  According to the shutter device of the fifth aspect, since the first communication unit is disposed within a predetermined distance of the guide unit in plan view, the shutter is avoided while avoiding contact between the first communication unit and the guide unit. It is possible to stably open and close the position of the curtain where the first communication means is installed.

1 is a front view conceptually showing a shutter device, a fire alarm system, and a shutter obstacle detection system according to an embodiment of the present invention. 2A and 2B are detailed views of the shutter device, in which FIG. 2A is a front view, and FIG. 2B is a cross-sectional view taken along the line AA in FIG. FIG. 3 is an enlarged view of a main part of FIG. 2. 4A and 4B are detailed views showing an emergency switch, in which FIG. 4A is a front view and FIG. 4B is a side view. FIG. 5A is an enlarged view of the periphery of the smoother, FIG. 5A is a plan view, FIG. 5B is a rear view, and FIG. 5C is a side view. It is a block diagram which shows the electric constitution of a transmitter. FIG. 7A is an external view of a transmitter, FIG. 7A is a front view, FIG. 7B is a plan view, FIG. 7C is a side view, and FIG. 7D is a rear view. It is a block diagram which shows the electric constitution of a receiver. 9A and 9B are detailed views of the upper case of the power supply unit, in which FIG. 9A is a front view, FIG. 9B is a bottom view, and FIG. 9C is a side view. FIG. 10A is a detailed view of the lower case of the power supply unit, FIG. 10A is a front view, FIG. 10B is a plan view, and FIG. 10C is a side view. It is an expanded sectional view of the periphery of a seat plate and a power supply unit. It is a front view which shows the positional relationship of the principal part of a shutter apparatus. It is a top view which shows the positional relationship of the principal part of a shutter apparatus. FIG. 14A is a diagram illustrating an example of installation of a smoother. FIG. 14A has two smoothers, FIG. 14B has three, FIG. 14C has four, and FIG. 14D has five smoothers. It is a rear view. It is a figure which shows the shutter obstruction detection system which concerns on a modification, and is a principal part enlarged view corresponding to FIG. It is a figure which shows the shutter obstruction detection system which concerns on another modification, and is sectional drawing corresponding to FIG.2 (b). It is a front view which shows notionally the conventional shutter apparatus, a fire alerting | reporting system, and an obstruction detection apparatus.

  Embodiments of a shutter device according to the present invention will be described below in detail with reference to the accompanying drawings. [I] First, the basic concept of the present embodiment will be described, then [II] the specific contents of the present embodiment will be described, and [III] Finally, a modification to the present embodiment will be described. However, the present invention is not limited by the present embodiment.

[I] Basic concept of the present embodiment First, the basic concept of the present embodiment will be described. The shutter device according to the present embodiment is a shutter device to which an obstacle detection system that detects an obstacle with respect to an opening / closing device for opening and closing an opening is applied.

  An “opening / closing device” is a device including an opening / closing body that opens and closes an opening, and is typically a shutter device including a shutter curtain as an opening / closing body. Includes a roll screen device with a screen. Unless otherwise specified, the shutter device can take any purpose, installation location, structure, etc., and is configured as, for example, a heavy shutter, lightweight shutter, grill shutter, or smoke proof wall. It is configured as a shutter used in combination for a plurality of purposes, such as a fireproof shutter, a smokeproof shutter, an airtight shutter, a management shutter, a soundproof shutter, or a combined management shutter. The opening / closing direction of the shutter curtain is also arbitrary, and includes the vertical direction and the horizontal direction. Below, the example which applied the shutter obstruction detection system to the fire prevention smoke-proof shutter apparatus (heavy shutter apparatus) which opens and closes a shutter curtain along a perpendicular direction is demonstrated.

  “Detecting obstacles” means detecting people and objects that can be an obstacle to the shutter curtain that opens and closes the opening. Including obstacle detection for, but not limited to harm prevention, it can target obstacle detection based on any purpose or law. Below, the case where the obstacle detection system for the purpose of the danger prevention at the time of the weight fall of a shutter curtain is provided in the fire prevention smoke prevention shutter apparatus is demonstrated.

[II] Specific contents of the present embodiment Next, specific contents of the present embodiment will be described.

(Configuration-Shutter device)
First, the configuration of the shutter device 10 according to the present embodiment will be described. However, the shutter device 10 can be configured in the same manner as in the prior art, and the configuration and processing that are not specified are the same as in the prior art. FIG. 1 is a front view conceptually showing the shutter device 10, the fire alarm system 20, and the shutter obstacle detection system 30 according to the present embodiment. 2A and 2B are detailed views of the shutter device 10, in which FIG. 2A is a front view and FIG. 2B is a cross-sectional view taken along line AA. FIG. 3 is an enlarged view of a main part of FIG.

  This shutter device 10 is an electric fire-proof shutter device that forms a fire-proof section in this building by fully closing the opening 1 provided in the building when a fire breaks out. The shutter curtain 12, the opening / closing device 13, the automatic closing device 14, the manual closing device 15, the interlock repeater 16, the emergency switch 17, and the smoother 18 are configured. In the following description, the X-X ′ direction in FIG. 2 is referred to as “width direction”, in particular, the X direction is referred to as “right direction”, and the X ′ direction is referred to as “left direction”. Further, the Y-Y ′ direction is referred to as “depth direction”, in particular, the Y direction is referred to as “front direction (indoor direction)”, and the Y ′ direction is referred to as “back direction (outdoor direction)”. Further, the Z-Z ′ direction is referred to as “height direction”, in particular, the Z direction is referred to as “upward direction”, and the Z ′ direction is referred to as “downward direction”.

  The shutter accommodating portion 11 is a hollow body for accommodating each portion of the shutter device 10, and is attached to a position near the upper end of the opening portion 1. Inside the shutter storage unit 11, an opening / closing device 13, an automatic closing device 14, an interlocking relay 16, a winding shaft 12 b, an emergency switch 17, a smoother 18, and a later-described receiver for the shutter obstacle detection system 30. 33 is accommodated. Further, in a state where the shutter curtain 12 is wound around the winding shaft 12 b, the shutter curtain 12 is also housed inside the shutter housing portion 11 together with a transmitter 32 described later of the shutter obstacle detection system 30. Under the shutter housing portion 11, the lintels 3 are fixed at positions close to the indoor side and close to the outdoor side, respectively. The lintels 3 cover the entire length in the width direction of the opening 1. The lintel opening 19a (slit) is formed, and the shutter curtain 12 is taken in and out through the lintel opening 19a.

  The shutter curtain 12 is a shielding means that brings the opening 1 into a fully open state, a fully closed state, or a state between these two states by being wound or unwound by the take-up shaft 12b. Both ends in the width direction of the shutter curtain 12 are inserted into the groove 2a of the guide rail 2 provided along the vertical direction at the left and right inner edges of the opening 1, and the groove 2a of the guide rail 2 is inserted in the vertical direction. It is slidable and is regulated so as not to drop out of the guide rail 2 in the front-rear direction. A horizontal seat plate 12a is provided at the lower end of the shutter curtain 12, and a seat plate switch 31 (to be described later) of the shutter obstacle detection system 30 is attached to the seat plate 12a. Here, the shutter curtain 12 in the fully closed state of the shutter curtain 12 is surrounded by a surface that closes the opening 1 (specifically, a ceiling surface, a floor surface, and a side wall (all not shown) of the opening 1). Hereinafter, it will be referred to as a “closed surface”.

  Here, a specific structure of the shutter curtain 12 will be described. As shown in FIG. 2B, the shutter curtain 12 includes a plurality of slats, and fitting portions are provided at both ends of each slat. The “fitting portion” is provided at both upper and lower end portions of each slat to fit and connect a plurality of slats to each other, and is formed by bending the both end portions.

  The opening / closing machine 13 is a control means for controlling the winding shaft 12b for winding or unwinding the shutter curtain 12 to control the opening / closing of the shutter curtain 12, and a brake (not shown) that brakes the rotation of the winding shaft 12b. It has. The automatic closing device 14 is a means for controlling the lowering of the weight of the shutter curtain 12, and based on a control signal from the interlocking relay 16, the brake is released by pulling the brake lever of the opening / closing device 13, thereby releasing the shutter curtain. The self-weight drop of the shutter curtain 12 is stopped by lowering the weight of the shutter curtain 12 or operating the brake by returning the brake lever of the switch 13 based on the control signal from the interlocking relay 16.

When the shutter curtain 12 is raised and lowered electrically, the automatic closing device 14 does not operate, the switch 13 releases the brake by itself, and drives the winding shaft 12b in a predetermined winding direction or feeding direction, The shutter curtain 12 is electrically lifted or lowered to open the opening 1 in a fully open state or a fully closed state.
On the other hand, by releasing the brake by the automatic closing device 14, the shutter curtain 12 is lowered by its own weight so that the opening 1 is fully closed, or the brake is operated to brake the rotation of the winding shaft 12 b, Stop the descent of the shutter curtain 12 by its own weight.

  The manual closing device 15 is an operating means for operating the shutter curtain 12, and includes a lift button for electrically raising the shutter curtain 12, a lower button for electrically lowering, and a stop button for stopping the shutter curtain 12 being lifted and lowered. When the up button, the down button, or the stop button is pressed by the user, an operation signal corresponding to the pressed button is output to the interlocking relay 16 so that the shutter curtain 12 is electrically driven via the switch 13. Ascend and descend, or stop raising and lowering the shutter curtain 12. Further, the manual closing device 15 has an emergency closing button. By pressing the emergency closing button, the shutter curtain 12 starts its own weight drop as in the case of a fire that will be described later.

  The interlock repeater 16 is a control means for interlocking each part of the shutter device 10 and is a relay means for interlocking the fire alarm system 20 with the shutter device 10. The interlock repeater 16 is electrically connected to a switchboard 13, an automatic closing device 14, a manual closing device 15, a disaster prevention panel 22 to be described later of the fire alarm system 20, and a receiver 33 to be described later of the shutter obstacle detection system 30. Connected. In particular, the interlock repeater 16 outputs a control signal to the automatic closing device 14 so as to lower the weight of the shutter curtain 12 or stop the weight of the shutter curtain 12 from dropping. Further, when the control signal is output to the automatic closing device 14 in this way, the interlock repeater 16 outputs a signal corresponding to the control content to the receiver 33. In the following, among the outputs from the interlock repeater 16 to the receiver 33, a signal indicating that the weight reduction of the shutter curtain 12 has been activated is referred to as a “activation on signal”, and that the weight reduction of the shutter curtain 12 has been stopped. The signal shown is referred to as a “start-off signal”.

  The shutter storage unit 11 is provided with a lower limit switch (not shown). This lower limit switch has a lower end of the shutter curtain 12 on either the upper side or the lower side with respect to a predetermined position (hereinafter referred to as a lower limit position) set at an upper side by a predetermined distance (several centimeters) from the floor surface. It is a switch for detecting whether it is located in. The lower limit switch includes, for example, a potentiometer that detects the amount of rotation of the winding shaft 12b of the shutter curtain 12 and a counter type limit switch, and the lower end of the shutter curtain 12 is located below the lower limit position. If so, a lower limit signal is output to the interlock repeater 16.

The emergency switch 17 is an abnormality detection unit that detects a situation in which the shutter curtain 12 opens and closes beyond a specified range. 4A and 4B are detailed views showing the emergency switch 17, in which FIG. 4A is a front view and FIG. 4B is a side view. The emergency switch 17 is configured as, for example, a micro switch disposed inside the shutter housing portion 11, and is pressed by the shutter curtain 12 when the shutter curtain 12 is unwound excessively. The overrun detection signal is output.
Further, the emergency switch 17 is configured to include, for example, a detection lever installed at a predetermined distance above the lintel opening 19a, and the detection lever is directed upward by the seat plate 12a of the shutter curtain 12. When pressed, the seat plate 12a of the shutter curtain 12 is positioned above a predetermined position (hereinafter referred to as an upper limit position) set a predetermined distance (several centimeters) above the lintel opening 19a. The abnormality detection signal is output to the interlocking repeater 16.

  The smoother 18 is a guiding means for guiding the shutter curtain 12 to move along a predetermined direction from the winding shaft 12b to the lintel opening 19a, and lifts a wheel having a rotation axis along the width direction. A predetermined number (two in the present embodiment) is provided along the vertical direction. 5A and 5B are enlarged views of the periphery of the smoother 18. FIG. 5A is a plan view, FIG. 5B is a rear view, and FIG. 5C is a side view. As shown in FIG. 5, the smoother 18 is attached to the side surface of the attachment base 19 b that is installed along the width direction in the region between the winding shaft 12 b and the lintel opening 19 a in the shutter storage portion 11. ing. The wheels constituting the smoother 18 are juxtaposed along the height direction, and when the shutter curtain 12 is opened and closed, the wheels are moved up and down while the shutter curtain 12 is in contact with the smoother 18. Rotate. By arranging the smoother 18 in this way, the shutter curtain 12 can be moved along a predetermined direction even if the winding amount of the shutter curtain 12 with respect to the winding shaft 12b varies as the shutter curtain 12 is opened and closed. Thus, it is possible to prevent the shutter curtain 12 from coming into contact with the inner surface of the lintel opening 19a and being damaged.

(Configuration-Fire alarm system)
Next, the structure of the fire alarm system 20 linked with the shutter obstacle detection system 30 according to the present embodiment will be described. However, the fire alarm system 20 can be configured in the same manner as in the prior art, and the configuration and processing that are not specified are the same as in the prior art. The fire notification system 20 is a system that detects and notifies the occurrence of a fire in a monitoring area set in a building, and includes a fire detector 21 and a disaster prevention panel 22. The fire detector 21 outputs a fire detection signal to the disaster prevention panel 22 when a fire occurrence in the monitoring area is detected. When the fire prevention signal is received from the fire detector 21, the disaster prevention panel 22 outputs an alarm sound and turns on the fire indicator light, and fully closes the shutter curtain 12 to form a fire prevention zone to spread the fire. In order to prevent expansion, a transfer signal for notifying the occurrence of a fire is output to the interlocking repeater 16.

(Configuration-Shutter obstacle detection system)
Next, the configuration of the shutter obstacle detection system 30 according to the present embodiment will be described. The shutter obstacle detection system 30 is a system that detects an obstacle to the shutter curtain 12 that opens and closes the opening 1 as described above. The shutter obstacle detection system 30 includes a seat plate switch 31, a transmitter 32, a receiver 33, and a power supply unit 34. As will be described later, the transmitter 32 is a communication unit that performs both transmission and reception of signals, but in the present embodiment, for convenience of explanation, the transmitter 32 is referred to as a “transmitter”. Further, as will be described later, the receiver 33 is a communication unit that performs both transmission and reception of signals, but in this embodiment, for convenience of explanation, the receiver 33 is referred to as a “receiver”. The transmitter 32 and the receiver 33 are two regions arranged along a direction orthogonal to the closed surface (that is, the depth direction), and two regions (with the shutter curtain 12 in between) ( In other words, the shutter curtain 12 is disposed in the same area of the front side (indoor side area) and the back side (outdoor side area). In the present embodiment, it is assumed that both the transmitter 32 and the receiver 33 are arranged in a region on the front side (indoor side) of the shutter curtain 12.

(Configuration-Shutter obstacle detection system-Seat switch)
The seat plate switch 31 is an obstacle sensor that detects that the tip portion (the seat plate 12a in the present embodiment) at the time of the closing operation of the shutter curtain 12 is in contact with the obstacle. The seat plate switch 31 is configured, for example, in the same manner as in the prior art. When the shutter curtain 12 is closed, the seat plate 12a comes into contact with an obstacle and is lifted relatively upward with respect to the shutter curtain 12. The displacement is detected mechanically (such as a micro switch), and an output corresponding to the detection result is performed. Hereinafter, of the outputs from the seat plate switch 31, the output when no obstacle is detected is referred to as “seat plate switch-off output”, and the output when an obstacle is detected is referred to as “seat plate switch-on output”. However, any detection means for detecting an obstacle can be used in place of the seat plate switch 31. For example, an ultrasonic sensor, a capacitance sensor, or an optical sensor can be used rather than the lower end of the shutter curtain 12. It may be detected that there is an obstacle below.

(Configuration-Shutter obstacle detection system-Transmitter)
The transmitter 32 is a first communication unit that wirelessly transmits a signal (hereinafter referred to as an obstacle detection state signal) including information indicating an obstacle detection state by the obstacle sensor. As described above, in the present embodiment, the wireless medium is described as being a radio wave, but the present invention is not limited to this. For example, the wireless medium may be infrared light or visible light. The same applies to the wireless medium of the receiver 33. FIG. 6 is a block diagram showing an electrical configuration of the transmitter 32. As shown in FIG. 6, this transmitter 32 is functionally conceptual in terms of vibration sensor 32a, input unit 32b, indicator lamp 32c, registration switch 32d, first transmission unit 32e, first reception unit 32f, and first antenna 32g. , A storage unit 32h, a power supply unit 32i, and a control unit 32j.

The vibration sensor 32a is a specifying unit that specifies that the closing operation of the shutter curtain 12 is activated based on the mechanical operation of the shutter curtain 12, and is fixed to the shutter curtain 12 and mechanically operates the shutter curtain 12. When a vibration is detected, a vibration detection signal is output. Although the specific configuration of the vibration sensor 32a is arbitrary, for example, a piezoelectric acceleration sensor can be used. However, as the specifying means for specifying the closing operation of the shutter curtain 12, a means other than the vibration sensor 32a may be used. For example, a magnet sensor for detecting that the shutter curtain 12 is mechanically displaced or a capacitance type is used. A sensor may be used, or a detector that detects the mechanical rotation of a roller provided on the seat plate 12a so as to be in contact with the guide rail 2 may be used.
The input unit 32b is an input unit that receives an output of the seat plate switch 31, and is configured as an input terminal connected to the output terminal of the seat plate switch 31 via a signal line (not shown), for example.
The indicator lamp 32c is an output means for notifying the outside of the transmitter 32 that a signal is being transmitted by the transmitter 32. For example, the indicator lamp 32c is configured as an LED and includes a housing 32k of the transmitter 32. It is arranged so that it can be projected outside.
The registration switch 32d is a registration operation means for registering the receiver 33 with which the transmitter 32 should communicate, and is configured as a push button switch that performs output according to the pressed state, for example. The registration switch 32d is also used as a test switch for testing the normality of the function of the shutter obstacle detection system 30.

The first transmission unit 32e is a transmission unit that transmits the obstacle detection state signal at a first frequency in a predetermined first frequency band.
The first receiving unit 32f is a receiving unit that receives a predetermined signal other than the obstacle detection state signal at a second frequency in a predetermined second frequency band.

Here, the first frequency band and the second frequency band will be described.
The first frequency band may be a frequency band in which the obstacle detection state signal can be transmitted. In particular, in the present embodiment, the first frequency band is a frequency band in which the obstacle detection state signal can be continuously transmitted. The “frequency band in which continuous transmission is possible” is a frequency band in which continuous transmission of signals is permitted (not required to pause or stop transmission) according to communication laws and standards. In particular, in the present embodiment, carrier sense is performed at the time of signal transmission in order to prevent signal collision when a plurality of shutter obstacle detection systems 30 are disposed close to the shutter device 10. Use the required frequency band. As the first frequency band that meets such conditions, for example, a 429 MHz band for specific low-power radio stations (specifically, a band of 40 channels at intervals of 12.5 KHz from 429.2500 MHz to 4297375 MHz). is there.
On the other hand, the second frequency band may be a frequency band that can transmit a predetermined signal, but in the present embodiment, a frequency band that allows intermittent transmission is used. In the present embodiment, a frequency band that does not require carrier sense is used for the second frequency band. As the second frequency band that matches such a condition, for example, there is a 315 MHz band (specifically, a band exceeding 312 MHz and not more than 315.25 MHz) for a specific low-power radio station.
In the following, for convenience of explanation, the frequency (first frequency) that is included in the first frequency band and the first transmitting unit 32e transmits a signal is “429 MHz”, and is the frequency included in the second frequency band. The frequency (second frequency) at which the first receiving unit 32f receives a signal is referred to as “315 MHz”.

The first antenna 32g is a transmission / reception element that transmits the obstacle detection state signal output from the first transmission unit 32e, or receives a predetermined signal and inputs the signal to the first reception unit 32f. The first antenna 32g is specifically in this embodiment, two is provided, the first antenna 32g ₁ of these one is used for transmission and reception of signals of a frequency of 429 MHz, while the first antenna 32 g ₂ is used for signal transmission and reception frequency of 315MHz. Therefore, one first overall length of the antenna 32 g ₁ of, as a predetermined integer ratio of the wavelength of 429 MHz, have been determined, the first total length of the antenna 32 g ₂ of the other, a predetermined integer of the wavelength of the 315MHz It is determined to be a ratio. Although the specific configuration of the first antennas 32g ₁ and 32g ₂ is arbitrary, the first embodiment is configured as an antenna with a loading coil (shortened antenna) installed so as to protrude from the substrate. Has been. In addition, when it is not necessary to distinguish these first antennas 32g ₁ and 32g ₂ from each other, they are simply collectively referred to as “first antenna 32g”.

The storage unit 32h is a rewritable non-volatile first storage unit that stores various programs and data necessary for operating the transmitter 32, and is configured as, for example, an EEPROM. In particular, the storage unit 32h uniquely identifies first identification information (hereinafter referred to as transmitter ID) for uniquely identifying the transmitter 32 and a receiver 33 to be communicated with the transmitter 32. The second identification information (hereinafter referred to as receiver ID) is stored one by one at an arbitrary timing such as before factory shipment.
The power supply unit 32 i is configured to include a battery (not shown), and supplies power supplied from the battery to each unit of the transmitter 32.
The control unit 32j is a control unit that controls each unit of the transmitter 32, and includes, for example, a CPU that executes a program stored in the storage unit 32h.

Next, a specific shape of the transmitter 32 will be described. 7 is an external view of the transmitter 32. FIG. 7 (a) is a front view, FIG. 7 (b) is a plan view, FIG. 7 (c) is a side view, and FIG. 7 (d) is a rear view. . Here, the transmitter 32 includes a board (not shown) on which the above-described various components are functionally mounted and a housing 32k that houses the board.
The casing 32k is an outline of the transmitter 32 formed in a hollow, substantially rectangular parallelepiped shape, and has a wiring hole (not shown) through which wiring is inserted on the back surface, and extends from the power supply unit 34. The wiring is connected to various devices such as a substrate housed in the housing 32k through the wiring hole. In addition, this housing | casing 32k is installed by well-known methods, such as screwing, with respect to the part arrange | positioned along the perpendicular direction in the seat board 12a. The size and shape of the housing 32k are arbitrary, but large enough to allow the housing 32k to pass through the lintel opening 19a of the shutter storage portion 11 when the shutter curtain 12 is fully opened. It is necessary to have a thickness and shape.

(Configuration-Shutter obstacle detection system-Receiver)
Next, the configuration of the receiver 33 in FIG. 1 will be described. The receiver 33 is a second communication unit that receives an obstacle detection state signal by radio (radio wave). FIG. 8 is a block diagram showing an electrical configuration of the receiver 33. As shown in FIG. 8, the receiver 33 is functionally conceptually configured with an input unit 33a, an output unit 33b, an indicator lamp 33c, a registration switch 33d, a second reception unit 33e, a second transmission unit 33f, and a second antenna 33g. , A storage unit 33h, a power supply unit 33i, and a control unit 33j. In addition, the installation position of the receiver 33 is an area where the transmitter 32 is disposed, out of two areas located with the shutter curtain 12 in the direction orthogonal to the closed surface (in this embodiment, the shutter curtain). As long as it is 12 forward regions). For example, in the present embodiment, the receiver 33 is installed via the receiver mounting base 37 on the side surface of the mounting base 19b disposed in the shutter housing portion 11 along the width direction.

The input unit 33a is an input unit that receives an input of an output from the interlock repeater 16, and is configured as, for example, an input terminal connected to an output terminal of the interlock repeater 16 via a signal line (not shown).
The output unit 33b is an output unit that outputs an obstacle detection state signal to the interlocking relay 16. For example, the output unit 33b is configured as an output terminal connected to an input terminal of the interlocking relay 16 via a signal line (not shown). ing. Specifically, the output unit 33b sets the resistance value inside the output unit 33b to a resistance value corresponding to the type of the signal to be output, so that the current value flowing from the receiver 33 to the interlock repeater 16 is changed. Various signals are output to the interlocking repeater 16 by changing.

The indicator lamp 33c is an output means for notifying the outside of the receiver 33 that a signal is being received by the receiver 33. For example, the indicator lamp 33c is configured as an LED capable of projecting with a plurality of display colors. ing.
The registration switch 33d is a registration operation means for registering the combination of the transmitter 32 and the receiver 33 to communicate with each other in the transmitter 32 and the receiver 33, and is configured as a push button switch, for example. ing.
In particular, in the present embodiment, the number of parts of the receiver 33 is reduced by configuring the indicator lamp 33c and the registration switch 33d as an integral display switch. Although the specific attachment method of the indicator lamp 33c and the registration switch 33d configured in this manner is arbitrary, for example, when the receiver 33 is fixed to the upper surface of a horizontal plate, It arrange | positions in the position corresponding to the provided through-hole, The user can operate the registration switch 33d from the downward direction of the said plate, and the user can visually observe the indicator lamp 33c.

The second receiving unit 33e is a receiving unit that receives the obstacle detection state signal in the first frequency band.
The second transmission unit 33f is a transmission unit that transmits a predetermined signal in the second frequency band.

  The second antenna 33g is a transmission / reception element that transmits a predetermined signal output from the second transmission unit 33f or receives an obstacle detection state signal and inputs it to the second reception unit 33e. Only one second antenna 33g is provided, and this second antenna 33g is used for transmission / reception of signals of two frequencies of 429 MHz and 315 MHz. For this reason, the total length of the second antenna 33g is determined to be an integer ratio with respect to a common multiple of the wavelength of 429 MHz and the wavelength of 315 MHz, for example.

The storage unit 33h is a second storage unit that stores various programs and data necessary for operating the receiver 33 in a rewritable manner, and is configured as, for example, an EEPROM. In the storage unit 33h, in particular, the receiver ID of the receiver 33 and the transmitter ID of the transmitter 32 to be communicated with the receiver 33 are each set at an arbitrary timing such as before factory shipment. Is remembered.
The power supply unit 33 i is connected to the interlocking relay 16 via a power line (not shown), and supplies the power supplied from the interlocking relay 16 to each part of the receiver 33.
The control unit 33j is a control unit that controls each unit of the receiver 33, and includes, for example, a CPU that executes a program stored in the storage unit 33h.

(Configuration-Shutter obstacle detection system-Power supply unit)
The power supply unit 34 is power supply means for supplying power to the transmitter 32, and constitutes first communication means for wirelessly transmitting an obstacle detection state signal. Specifically, the power supply unit 34 is a unit having a substantially rectangular parallelepiped shape disposed at a position on the side of the transmitter 32 (on the left side in the present embodiment) on the upper surface of the seat plate 12a. Here, the power supply unit 34 is schematically configured to include an upper case 35 and a lower case 36. 9A and 9B are detailed views of the upper case 35 of the power supply unit 34. FIG. 9A is a front view, FIG. 9B is a bottom view, and FIG. 9C is a side view. 10 is a detailed view of the lower case 36 of the power supply unit 34, in which FIG. 10 (a) is a front view, FIG. 10 (b) is a plan view, and FIG. 10 (c) is a side view. FIG. 11 is an enlarged cross-sectional view of the periphery of the seat plate 12 a and the power supply unit 34.

The upper case 35 is a case formed in a hollow, substantially rectangular parallelepiped shape with one side surface being an opening surface. Here, screw holes 35 a for combining the upper case 35 and the lower case 36 are provided in the vicinity of both ends in the longitudinal direction on the side surface of the upper case 35 facing the opening surface.
The lower case 36 is a case formed in a hollow, substantially rectangular parallelepiped shape with one side surface being an open surface, and is slightly smaller than the upper case 35 so as to be housed inside the upper case 35. It is a case formed in size. Here, a screw hole 36a for connecting the lower case 36 and the seat plate 12a is provided along the longitudinal direction on the side surface of the lower case 36 that faces the opening surface. Further, at both end portions in the longitudinal direction of the side surface facing the opening surface, there are provided projecting portions projecting perpendicularly to the side surface facing the opening surface, and the tip portion of the projecting portion Is bent at a right angle toward the inside. And the lower case 36 is being fixed with respect to the seat board 12a with the screw which penetrates the screw hole 36a provided in the side surface of the lower case 36, and the screw hole of the seat board 12a one by one. In addition, the upper case 35 is fixed to the lower case 36 by screws that sequentially pass through the screw holes 35 provided on the side surface of the upper case 35 and the screw holes 36 b of the lower case 36.

(Configuration-details of the location of various devices)
Subsequently, preferred positions of various devices constituting the shutter device 10 and the obstacle detection system will be described in detail. FIG. 12 is a front view showing the positional relationship of the main parts of the shutter device 10. In FIG. 12, the positions of the transmitter 32 and the power supply unit 34 when the shutter curtain 12 is fully closed are indicated by solid lines, and the positions of the transmitter 32 and the power supply unit 34 when fully open are indicated by dotted lines. FIG. 13 is a plan view showing the positional relationship of the main parts of the shutter device 10 (a diagram showing the positional relationship of the main parts of the shutter device 10 in plan view). In FIG. 13, the depth of each slat constituting the shutter curtain 12 is indicated by a two-dot chain line.

First, basic arrangement conditions of the transmitter 32 will be described. Since this transmitter 32 transmits an obstacle detection state signal wirelessly, it is desirable to arrange the transmitter 32 in the vicinity of the seat plate switch 31. In this embodiment, the transmitter 32 is arranged on the upper surface of the seat plate 12a. Has been. In the present embodiment, as shown in FIG. 13, the transmitter 32 is arranged at a position that does not overlap with the receiver 33 in plan view, but the transmitter 32 overlaps with the receiver 33 in plan view. You may arrange in the position to do. With such an arrangement, the first antenna 32g of the transmitter 32 and the second antenna 33g of the receiver 33 are arranged at the shortest distance, so that the communication conditions between the transmitter 32 and the receiver 33 are optimized. can do. Even in such an arrangement, the transmitter 32 and the receiver 33 should be arranged at a position where the transmitter 32 and the receiver 33 do not overlap in a side view when the shutter curtain 12 is fully opened. Thus, it is possible to prevent the transmitter 32 and the receiver 33 from coming into contact with each other and being damaged when the shutter curtain 12 is fully opened.
Further, when the shutter curtain 12 is fully opened, most of the seat plate 12a is accommodated in the area between the lintels 3 in the shutter accommodating portion 11, and the transmitter 32 is disposed above the area between the lintels 3. The transmitter 32 is arranged so that is located. For example, in the present embodiment, as shown in FIG. 3, the transmitter 32 is installed on the upper surface of the seat plate 12a.

  Next, basic arrangement conditions for the power supply unit 34 will be described. Since the power supply unit 34 is a device that supplies power to the transmitter 32, it is desirable to arrange the power supply unit 34 in the vicinity of the transmitter 32. In the present embodiment, the left side of the transmitter 32 on the upper surface of the seat plate 12a. Is arranged. It is possible to arrange the power supply unit 34 above the transmitter 32. However, according to such an arrangement, transmission and reception of radio waves between the transmitter 32 and the receiver 33 is hindered by the power supply unit 34. Therefore, it is not desirable. Further, the transmitter 32 and the power supply unit 34 may be arranged at opposite positions.

  Next, basic arrangement conditions for the smoother 18 will be described. As described above, the smoother 18 is a means for guiding the shutter curtain 12 to move along a predetermined direction from the winding shaft 12b to the lintel opening 19a. It is necessary to arrange in the area between the shafts 12b. Since both end portions of the shutter curtain 12 can be stably slid by the guide rail 2, it is not necessary to arrange the smoother 18 in the vicinity of the guide rail 2, and a predetermined distance (in the width direction from the guide rail 2). For example, it is desirable to dispose at a position separated by 750 mm).

  Next, basic arrangement conditions for the emergency switch 17 will be described. As described above, the emergency switch 17 includes a micro switch that is pressed by the shutter curtain 12 when the shutter curtain 12 is unwound excessively, and a detection lever that detects the position of the seat plate 12a. It is necessary to install in the vicinity of the winding shaft 12b and the lintel opening 19a. For example, in the present embodiment, it is disposed in the vicinity of the winding shaft 12 b and closer to the winding shaft 12 b than the lintel opening 19 a in the shutter storage portion 11. The position of the emergency switch 17 in the width direction is arbitrary, but in order to detect that the seat plate 12a is located above the upper limit position, the shutter curtain 12 is opened and closed on the seat plate 12a. It is desirable to install the emergency switch 17 at a position corresponding to a position where the vibration associated with is low. For example, it is desirable to arrange the shutter curtain 12 at a position where the shutter curtain 12 can be moved up and down stably, such as a position near the guide rail 2. In this embodiment, the position near the guide rail 2 (for example, 10 cm from the guide rail 2). Position). Further, the position of the emergency switch 17 may be determined from the viewpoint of wiring. For example, in the present embodiment, it is necessary to pass the wiring of the emergency switch 17 to the right of the shutter device 10, and the emergency switch 17. The switch 17 is disposed at a position on the right side of the shutter device 10 (that is, near the guide rail 2).

(Configuration-Mutual relationship between various devices-Positional relationship between transmitter and power supply unit and smoother)
Next, a preferable mutual relationship between the positions of various devices constituting the shutter device 10 and the obstacle detection system will be described. First, the positional relationship between the transmitter 32 and the power supply unit 34 and the smoother 18 will be described. The smoother 18 is disposed at a position where it does not contact the transmitter 32 and the power supply unit 34 when the shutter curtain 12 is fully opened. For example, in this embodiment, the shutter curtain 12 is disposed on the left side of the power supply unit 34 when the shutter curtain 12 is fully opened. By adopting such a structure, the possibility that the transmitter 32 and the power supply unit 34 and the smoother 18 physically interfere with each other (possibility of contact) can be reduced.

  Furthermore, by arranging the transmitter 32, the power supply unit 34, and the smoother 18 in this way, the space-saving shutter device 10 can be configured. That is, for example, when the transmitter 32, the power supply unit 34, and the smoother 18 are arranged at positions that do not overlap in any side view from any side direction (for example, the smoother 18 above the transmitter 32 in the fully opened state). When the shutter 32 is fully opened, it is necessary to secure a space for the transmitter 32 to be disposed when the shutter curtain 12 is fully opened. Therefore, the space of the shutter storage unit 11 is required to have at least a space obtained by adding the height of the transmitter 32 to the height of the smoother 18. On the other hand, by arranging the smoother 18 on the left side of the transmitter 32 and the power supply unit 34 as in the present embodiment, the smoother 18 and the transmitter 32 are not arranged along the height direction, and the height is increased. The omitted shutter storage unit 11 can be configured.

  Here, from the viewpoint of reducing the possibility of the physical interference, it is preferable to arrange the transmitter 32 at a position as far as possible from the smoother 18. However, in the present embodiment, the transmitter 32 is not disposed at a position away from the smoother 18 but is disposed at a position within a predetermined distance (for example, 10 cm) from the smoother 18 in a plan view. Yes. That is, when the shutter curtain 12 is opened and closed, the transmitter 32 may come into contact with the lintel 3 if the position where the transmitter 32 is arranged on the seat plate 12a vibrates greatly with the opening and closing movement. It is not desirable. Here, in a plan view, a position within a predetermined distance from the smoother 18 on the seat plate 12a is a position where the smoother 18 can stably move up and down. Therefore, the vibration accompanying the opening / closing movement of the position is small compared to a position outside the predetermined distance range from the smoother 18 in the seat plate 12a. Therefore, by disposing the transmitter 32 within a predetermined distance from the smoother 18 in plan view, the position where the transmitter 32 is installed can be stably opened and closed, and the transmitter 32, the receiver 33, It is possible to improve the accuracy of transmission / reception of radio waves.

(Configuration-Mutual relationship of various devices-Positional relationship between transmitter and power supply unit and emergency switch)
Next, the positional relationship among the transmitter 32 and the power supply unit 34 and the emergency switch 17 will be described. The emergency switch 17 is disposed at a position where it does not contact the transmitter 32 and the power supply unit 34 when the shutter curtain 12 is fully opened. For example, in the present embodiment, it is arranged on the right side of the transmitter 32 when the shutter curtain 12 is fully opened. By arranging the transmitter 32 and the power supply unit 34 at a position where the emergency switch 17 does not contact in this way, the detection lever of the emergency switch 17 is moved to the seat plate 12a when the shutter curtain 12 is fully opened. Instead of contacting the transmitter 32 or the power supply unit 34, it is possible to prevent a situation in which the abnormality detection signal is erroneously output to the interlocking repeater.

  As described above, the smoother 18 is disposed at a position away from the guide rail 2 by a predetermined distance, and the emergency switch 17 is disposed in the vicinity of the guide rail 2 from the viewpoint of wiring and the like. Therefore, in order to reduce the size of the shutter obstacle detection system 30, the transmitter 32 and the power supply unit 34 are arranged in the area between the smoother 18 and the emergency switch 17 in the width direction as in the present embodiment. It is desirable to arrange.

(processing)
Next, processing executed in the shutter obstacle detection system 30 configured as described above will be described. This process is roughly divided into a registration process and a dead weight lowering process. Hereinafter, after describing the processes common to these processes, each process will be described in turn. However, for the registration process, for example, the same process as that described in Patent Document 1 can be adopted, and only the outline thereof will be described.

(Processing-Registration process)
Next, the registration process will be described. This registration process is a process for registering the transmitter ID of the transmitter 32 as a communication partner with the receiver 33, and is activated when the transmitter 32 and the receiver 33 are powered on.

  First, the control unit 33j of the receiver 33 monitors whether or not the registration switch 33d of the receiver 33 has been operated by the user in a predetermined method (for example, whether or not it has been continuously pressed for a predetermined time). If it is, the transmitter 32 is in a waiting state for receiving the transmitter ID transmitted from the transmitter 32.

  On the other hand, the control unit 32j of the transmitter 32 monitors whether or not a predetermined intermittent reception timing (for example, every several seconds) has arrived, and if it has arrived, the first reception is performed for a predetermined time (for example, several ms). By supplying power to the unit 32f, reception is performed at 315 MHz through the first receiving unit 32f for the predetermined time. The reason why intermittent reception is performed in this way is to reduce battery power consumption required for signal reception. The control unit 32j monitors whether or not the registration switch 32d of the transmitter 32 has been operated by the user in a predetermined method (for example, whether or not it has been continuously pressed for a predetermined time) through such intermittent reception. When operated, the carrier sense at 429 MHz is performed via the first transmission unit 32e, thereby specifying an empty channel that can be used for transmission. Then, when the empty channel can be identified, the control unit 32j transmits a signal including the transmitter ID stored in the storage unit 32h in advance at 429 MHz via the first transmission unit 32e.

  On the other hand, the control unit 33j of the receiver 33 identifies the channel used by the transmitter 32 for signal transmission at 429 MHz by performing a channel scan while waiting for the transmitter ID to be received. Attempt to receive a signal transmitted from 32. When the signal including the transmitter ID can be received, the control unit 33j stores the transmitter ID included in the signal in the storage unit 33h as the transmitter ID of the transmitter 32 serving as a communication partner. This completes the registration process.

  Here, it is assumed that the transmitter 32 and the receiver 33 perform one-to-one communication, and the registration process is performed in a state where the communication partner transmitter ID is already stored in the storage unit 33h of the receiver 33. In this case, it is assumed that the transmitter ID in the storage unit 33h is overwritten by the newly received transmitter ID. However, when performing one-to-many communication, a plurality of transmitter IDs may be registered in the storage unit 33h. The registration process is valid only for a predetermined time (for example, one minute) after the registration switch 32d is pressed by the user. If the transmitter ID of the communication partner cannot be received within this time, the registration process is performed. May be terminated. Further, the receiver ID may be registered in the transmitter 32 by the same process as the registration of the transmitter ID. That is, the receiver ID may be transmitted from the receiver 33 to the transmitter 32, and the receiver ID may be stored in the storage unit 32h of the transmitter 32. In this case, when the transmitter 32 intermittently receives a signal transmitted at 315 MHz from the receiver 33 thereafter, the transmitter 32 stores the receiver ID included in the signal in its own storage unit 33h. It may be determined whether or not the receiver ID matches, and the signal may be accepted as a valid signal only if it matches.

(Processing-Weight drop processing)
Next, the dead weight lowering process will be described. This dead weight lowering process is a process for lowering the shutter curtain 12 when necessary. For example, when a fire is detected by the fire detector 21 of the fire alarm system 20 shown in FIG. 1, the fire detector 21 outputs a fire detection signal to the disaster prevention panel 22, and the disaster prevention panel 22 is transferred to the interlock repeater 16. The interlock repeater 16 outputs an activation signal to the automatic closing device 14, and the automatic closing device 14 releases the brake of the opening / closing device 13 and starts the weight drop of the shutter curtain 12. At the same time, the interlock repeater 16 outputs a start-on signal to the receiver 33 to notify that the self-weight drop of the shutter curtain 12 has been started. When this activation on signal is received via the input unit 33a of the receiver 33, the control unit 33j of the receiver 33 transmits the activation on signal at 315 MHz via the second transmission unit 33f.

  On the other hand, when the shutter curtain 12 starts its own weight drop, the vibration sensor 32a that has detected the vibration of the shutter curtain 12 that is generated along with the weight drop outputs a vibration detection signal. When this vibration detection signal is output, the control unit 32j of the transmitter 32 tries to quickly receive the signal from the receiver 33. When the activation on signal cannot be received within a predetermined time, the control unit 32j causes the vibration detected by the vibration sensor 32a to be caused by an earthquake, a wind, etc. If not, the process ends. On the other hand, when the activation on signal can be received within a predetermined time, the control unit 32j assumes that the vibration detected by the vibration sensor 32a is caused by the descent of the shutter curtain 12, and transmits the transmitter information signal (obstacle). A detection state signal) is generated and transmitted to the receiver 33. The transmitter information signal includes data indicating whether the output from the seat plate switch 31 is a seat plate switch-off output or a seat plate switch-on output, a transmitter ID set in the storage unit 32h, and the like. At this time, by continuously transmitting the transmitter information signal, the descent of the shutter curtain 12 at the time of obstacle detection is stopped as early as possible.

  On the other hand, the control unit 33j of the receiver 33 monitors data corresponding to the output of the seat plate switch 31 included in the transmitter information signal at each time point, and from the seat plate switch 31 during the predetermined time of reception. When the data indicating that the output is a seat plate switch-on output is received, the seat plate switch-on signal is output to the interlocking relay 16 by switching the resistance value inside the output unit 33b. The interlock repeater 16 that has received the seat plate switch-on signal controls the weight drop of the shutter curtain 12 based on the detection state of the lower limit switch and the presence or absence of a power failure in the shutter device 10 specified by a known method. . Specifically, when the lower limit switch detects that the lower end of the shutter curtain 12 is located above the lower limit position, and the shutter device 10 is not out of power, it automatically closes. A control signal is output to the device 14, the automatic closing device 14 activates the brake of the switch 13 to stop the weight drop of the shutter curtain 12 once, drives the switch 13 to raise it for a predetermined time, and then stops. Perform operation (touch-up operation). Alternatively, when the lower limit switch detects that the lower end of the shutter curtain 12 is located above the lower limit position, and the shutter device 10 is out of power, the automatic closing device 14 is used. A control signal is output, and the automatic closing device 14 operates the brake of the switch 13 to temporarily stop the weight drop of the shutter curtain 12 (touch stop operation). On the other hand, when it is detected by the lower limit switch that the lower end of the shutter curtain 12 is located below the lower limit position, the shutter curtain 12 can be controlled regardless of whether or not the shutter device 10 is out of power. After a predetermined time has elapsed after the lower end has passed the lower limit position, a control signal is output to the automatic closing device 14, and the automatic closing device 14 activates the brake of the switch 13 to stop the weight drop of the shutter curtain 12 ( Complete stop operation). By performing such processing, it is possible to prevent the user or the like from being harmed by the lowering of the shutter curtain 12.

  In addition, when an obstruction is removed and the seat plate switch-off output is input from the seat plate switch 31, this state is transmitted from the transmitter 32 to the receiver 33, and the descent of the shutter curtain 12 is resumed. Is done. That is, when the control unit 33j of the receiver 33 receives a transmitter information signal including data indicating that the output from the seat plate switch 31 is a seat plate switch-off output, the internal resistance of the output unit 33b. By switching the value, a seat plate switch-off signal indicating that the obstacle has been removed is output to the interlock repeater 16. Upon receiving this seat plate switch-off signal, the interlock repeater 16 outputs a control signal to the automatic closing device 14 after a predetermined time has elapsed when the person who is caught can evacuate from the shutter curtain 12 with certainty. Releases the brake of the opening / closing machine 13 and resumes the weight drop of the shutter curtain 12 again. However, the lowering is resumed only after the touch-up operation or the touch stop operation, and not after the complete stop operation. Thereafter, the descent stop process and the descent restart process are repeated according to the output of the seat plate switch 31 as described above.

(Effect of embodiment)
As described above, according to the present embodiment, the transmitter 32 is arranged so that the smoother 18 and the transmitter 32 do not come into contact with each other when the shutter curtain 12 is fully opened. Therefore, the transmitter 32 when the shutter curtain 12 is fully opened. The possibility of physical interference with the smoother 18 can be reduced, and problems that may occur due to such interference can be prevented in advance.

  The transmitter 32 and the smoother 18 are arranged at positions that do not overlap in plan view, and are arranged at positions that overlap at least in one side view, so that the transmitter 32 and the smoother 18 are in contact with each other. It is not necessary to secure a space for preventing the movement below the smoother 18, and the space-saving shutter device 10 can be configured.

  Further, since the transmitter 32 is arranged so that the emergency switch 17 and the transmitter 32 do not come into contact with each other when the shutter curtain 12 is fully opened, the transmitter 32 and the emergency switch 17 when the shutter curtain 12 is fully opened. It is possible to reduce the possibility of physical interference with this, and it is possible to prevent problems that may occur due to such interference.

  Since the transmitter 32 and the emergency switch 17 are arranged at positions that do not overlap in a plan view and are arranged at positions that overlap in at least one side view, the transmitter 32 and the emergency switch 17 are arranged. There is no need to secure a space below the emergency switch 17 so as not to contact the switch 17, and the space-saving shutter device 10 can be configured.

  Further, since the transmitter 32 is disposed within a predetermined distance of the smoother 18 in a plan view, the position where the transmitter 32 is installed in the shutter curtain 12 while avoiding contact between the transmitter 32 and the smoother 18. It can be opened and closed stably.

[III] Modifications to Embodiments Although the embodiments of the present invention have been described above, specific configurations and means of the present invention are within the scope of the technical idea of the present invention described in the claims. Any modification and improvement can be made. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves the problems not described above or has the effects not described above. There are also cases where only some of the described problems are solved or only some of the described effects are achieved.

(Use of obstacle detection results)
In the above embodiment, the shutter lowering control is performed based on the detection result by the shutter obstacle detection system 30, but the detection result may be used for other purposes. For example, when the shutter device 10 is for preventing a person from entering the security zone and is a lightweight shutter device, there is a low possibility of harming an obstacle, the shutter obstacle detection system Even if an obstacle is detected by 30, the descent stop of the shutter curtain 12 may not be performed, and only the transfer output to the security system may be performed.

(About the first antenna)
In the first embodiment, the case where the _two first antennas 32g ₁ and 32g ₂ are provided has been described. However, these may be replaced by one first antenna 32g, and in this case, the one first antenna What is necessary is just to determine the full length of 1 antenna 32g so that it may become an integer ratio with respect to the common multiple of the wavelength of 429 MHz and the wavelength of 315 MHz, for example. In the embodiment, the first antenna 32g has been described as an antenna with a loading coil. However, the present invention is not limited to this, and for example, a board mounted antenna mounted on a board or a pattern formed on the board. An antenna may be used.

(About Smoother)
In the present embodiment, it has been described that only one smoother 18 is installed in the shutter storage unit 11, but the present invention is not limited to this. FIG. 14 is a diagram illustrating an installation example of the smoother 18. FIG. 14 (a) has two, FIG. 14 (b) has three, FIG. 14 (c) has four, and FIG. 14 (d) has five. FIG. 6 is a rear view in which two smoothers 18 are installed. As described above, the smoother 18 may be installed at a position closer to the center of the predetermined distance from both ends of the mounting base 19b, and the smoothers 18 may be arranged in parallel at equal intervals in the area between the smoothers 18 at both ends. That is, since it is not necessary to install the smoother 18 in the vicinity of both end portions of the shutter curtain 12 that can be stably slid by the guide rail 2, the smoother 18 positioned at both end portions of the shutter curtain 12 is guided by It is installed at a position away from the rail 2 by a predetermined distance (for example, 750 mm). And when increasing the installation number of the smoothers 18, the several smoother 18 is arrange | positioned at equal intervals between the smoothers 18 located in the said both ends. Thus, regardless of the number of smoothers 18 installed, the guide rails 2 and the smoothers 18 at both end portions are disposed at a predetermined distance (same distance), so that the transmitter 32 according to the present embodiment and The power supply unit 34 can be arranged in a region between the guide rail 2 and the smoother 18 at both end portions, and further, the mounting positions of the transmitter 32 and the power supply unit 34 in the shutter curtain 12 are made common. It becomes possible to plan.

(About the shutter compartment)
In the present embodiment, for example, as illustrated in FIG. 3, the shutter device 10 is described such that the transmitter 32 and the smoother 18 overlap each other in a side view when the shutter curtain 12 is fully opened. However, the present invention is not limited to this. FIG. 15 is a diagram showing a shutter obstacle detection system 40 according to a modification, and is an enlarged view of a main part corresponding to FIG. In the structure shown in FIG. 15, the lintel 3 is longer in the height direction than the structure shown in FIG. 3. In the fully opened state, in addition to the seat plate 12 a, transmission is performed inside the lintel 3. The machine 32 and the power supply unit 34 are completely accommodated. As shown in FIG. 15, the shutter device 10 may be configured so that the transmitter 32 and the smoother 18 are not overlapped in a side view in the fully opened state.

(About the receiver)
In the present embodiment, the receiver 33 has been described as being installed on the front side surface among the side surfaces of the mounting base 19b provided in the shutter storage unit 11, but the present invention is not limited to this. FIG. 16 is a view showing a shutter obstacle detection system 50 according to another modification, and is a cross-sectional view corresponding to FIG. As shown in FIG. 16, the receiver 33 may be installed on the upper side surface of the mounting base 19b.

(About power supply unit)
In the present embodiment, the transmitter 32 and the power supply unit 34 are installed on the upper surface of the seat plate 12a, and both of the transmitter 32 and the power supply unit 34 are the smoother 18 or the emeralr when the shutter curtain 12 is fully opened. Various devices were arranged so as not to contact the Zeni switch 17.

(Position relationship between transmitter and power supply unit and smoother)
When the shutter curtain 12 is fully opened, the transmitter 32, the power supply unit 34, and the smoother 18 are positioned so as not to overlap in a plan view and overlap in a side view from at least one side surface direction. It is desirable to arrange. Here, “overlapping” indicates that at least a part of the transmitter 32 or the power supply unit 34 and at least a part of the smoother 18 are positioned on a straight line orthogonal to the reference side surface. "" Indicates that a part of the transmitter 32 or the power supply unit 34 and a part of the smoother 18 are not positioned on a straight line perpendicular to the plane. For example, in the present embodiment, when the shutter curtain 12 is fully opened, the smoother 18 is disposed on the left side of the transmitter 32 and the power supply unit 34 in plan view, so that these positions do not overlap. . On the other hand, when viewed from the left side, at least a portion overlaps in the depth direction of the transmitter 32 and the power supply unit 34 and the smoother 18 (that is, a portion of the transmitter 32 and the power supply unit 34 on a straight line orthogonal to the left side surface. Therefore, the positions of the transmitter 32, the power supply unit 34, and the smoother 18 overlap each other. According to such a configuration, the transmitter 32 and the smoother 18 are arranged at positions that do not overlap in plan view, and are arranged at positions that overlap in at least one side view. It is not necessary to secure a space for preventing the machine 32 and the smoother 18 from contacting each other, for example, below the smoother 18, and the space-saving shutter device 10 can be configured.

(About the positional relationship between the transmitter and power supply unit and the emergency switch)
In addition, the transmitter 32, the power supply unit 34, and the emergency switch 17 are positioned so as not to overlap in plan view when the shutter curtain 12 is fully opened, and in side view from at least one side direction. It is desirable to arrange them at overlapping positions in FIG. The reason for such an arrangement can be explained by replacing the smoother 18 with the emergency switch 17 in the description of the arrangement of the transmitter 32, the power supply unit 34, and the smoother 18 described above. Since it is possible, the detailed description is abbreviate | omitted. According to such a configuration, the transmitter 32 and the emergency switch 17 are arranged at positions that do not overlap in plan view, and are arranged at positions that overlap in at least one side view. Therefore, it is not necessary to secure a space for preventing the transmitter 32 and the emergency switch 17 from contacting each other below the emergency switch 17, and the space-saving shutter device 10 can be configured.

(Appendix)
The shutter device according to appendix 1 is a shutter device that detects an obstacle with respect to a shutter curtain that opens and closes an opening, and an obstacle that obstructs the closing operation of the shutter curtain exists in the opening. An obstacle sensor to detect, a first communication means having a first antenna for wirelessly transmitting an obstacle detection state signal including information indicating an obstacle detection state by the obstacle sensor, and the obstacle detection state A second communication unit having a second antenna for wirelessly receiving a signal; and for winding or unwinding the shutter curtain based on the obstacle detection state signal received by the second communication unit. Control means for controlling opening and closing of the shutter curtain by controlling the rotating means; and the shutter curtain from the rotating means to the lintel opening. And guiding means for guiding the movement of the first communication means so that the guiding means and the first communication means are not in contact with each other when the shutter curtain is fully open. .

  The shutter device according to attachment 2 is the shutter device according to attachment 1, wherein the first communication means and the guiding means are not overlapped in plan view when the shutter curtain is fully opened. And it has arrange | positioned in the position which overlaps on the side view from at least one side surface direction.

  The shutter device according to appendix 3 is an abnormality detection means for detecting a situation in which the shutter curtain is opened and closed beyond a specified range in the shutter device according to appendix 1 or 2. Is provided with an abnormality detection means arranged near the rotation means, and the first communication means is arranged at a position where the abnormality detection means and the first communication means do not contact when the shutter curtain is fully opened. did.

  Further, the shutter device described in Appendix 4 is the shutter device described in Appendix 3, wherein the first communication unit and the abnormality detection unit do not overlap in plan view when the shutter curtain is fully opened. And it has arrange | positioned in the position which overlaps in the side view from at least one side surface direction.

  Further, the shutter device according to appendix 5 is the shutter device according to any one of appendices 1 to 4, wherein the first communication unit is arranged within a predetermined distance of the guide unit in plan view.

(Additional effects)
According to the shutter device of appendix 1, since the first communication unit is arranged so that the guide unit and the first communication unit do not come into contact with each other when the shutter curtain is fully opened, the first communication when the shutter curtain is fully opened. It is possible to reduce the possibility of physical interference between the means and the guiding means, and it is possible to prevent problems that may occur due to such interference.

  According to the shutter device according to attachment 2, the first communication unit and the guide unit are arranged at a position that does not overlap in a plan view, and are arranged at a position that overlaps at least in one side view. Therefore, it is not necessary to secure a space for preventing the first communication unit and the guiding unit from contacting each other below the guiding unit, and a space-saving shutter device can be configured.

  According to the shutter device according to attachment 3, the first communication unit is arranged so that the abnormality detection unit and the first communication unit do not come into contact with each other when the shutter curtain is fully opened. It is possible to reduce the possibility of physical interference between the communication means and the abnormality detection means, and it is possible to prevent problems that may occur due to such interference.

  According to the shutter device described in appendix 4, the first communication unit and the abnormality detection unit are disposed at positions that do not overlap in a plan view, and are disposed at positions that overlap at least in one side view. Therefore, it is not necessary to secure a space for preventing the first communication unit and the abnormality detection unit from contacting each other, and a space-saving shutter device can be configured.

  According to the shutter device of appendix 5, since the first communication unit is disposed within a predetermined distance of the guide unit in plan view, the shutter curtain is avoided while avoiding contact between the first communication unit and the guide unit. It is possible to stably open and close the position where the first communication means is installed.

DESCRIPTION OF SYMBOLS 1 Opening part 2 Guide rail 2a Groove part 3 Crib 10, 100 Shutter device 11 Shutter accommodating part 12, 101 Shutter curtain 13, 102 Opening and closing machine 14, 103 Automatic closing device 15, 104 Manual closing device 16, 105 Interlocking relay 17 Emer Zenshi switch 18 Smoother 12a Seat plate 12b Winding shaft 19a Rag opening 19b Mounting base 20, 110 Fire alarm system 21, 111 Fire detector 22, 112 Disaster prevention panel 30, 40, 50 Shutter obstacle detection system 31, 121 Seat leaf switch 32 transmitter 32a vibration sensor 32 b, 33a input unit 32c, 33c display lamp 32d, 33d registration switch 32e first transmission portion 32f first receiver _32g, 32g _1, 32g _2, the first antenna 32h, 33h storage unit 3 i, 33i power supply unit 32j, 33j control unit 32k housing 33 receiver 33b output unit 33e second reception unit 33f second transmission unit 33g second antenna 34 power supply unit 35 upper case 35a, 36a, 36b screw hole 36 lower case 37 Receiver mount 120 Obstacle detection device 122 Signal line 123 Code reel

Claims (5)

A shutter device that detects an obstacle to a shutter curtain that opens and closes an opening,
An obstacle sensor that detects that an obstacle that obstructs the closing operation of the shutter curtain exists in the opening; and
First communication means having a first antenna for wirelessly transmitting an obstacle detection state signal including information indicating an obstacle detection state by the obstacle sensor;
Second communication means having a second antenna for wirelessly receiving the obstacle detection state signal;
Control means for controlling opening and closing of the shutter curtain by controlling rotation means for winding or unwinding the shutter curtain based on the obstacle detection state signal received by the second communication means; ,
Guidance means for guiding the shutter curtain to move along a predetermined direction from the turning means to the lintel opening,
When the shutter curtain is fully open, the first communication unit is disposed so that the guide unit and the first communication unit do not come into contact with each other .
The first communication means and the guiding means are arranged at positions that do not overlap in plan view when the shutter curtain is fully open.
Shutter device. And said guide means and said first communication means, at the time of full opening of the shutter curtain and positioned so as to overlap in the side view from at least one side direction,
The shutter device according to claim 1. An abnormality detection means for detecting a situation in which the shutter curtain moves open and close beyond a specified range, comprising an abnormality detection means arranged at a position closer to the turning means than the lintel opening,
When the shutter curtain is fully open, the first communication unit is disposed at a position where the abnormality detection unit and the first communication unit do not come into contact with each other.
The shutter device according to claim 1. The first communication unit and the abnormality detection unit are arranged at a position that does not overlap in a plan view when the shutter curtain is fully opened and that overlaps in a side view from at least one side surface direction. did,
The shutter device according to claim 3. The first communication means is disposed within a predetermined distance of the guiding means in plan view.
The shutter device according to any one of claims 1 to 4.

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