JP2021011741A - shutter - Google Patents

Abstract

To provide a shutter capable of electrically opening a shutter curtain as a fireproof shutter while suppressing installation cost.SOLUTION: Included are: an electric switch M; a control device 4 for controlling the self-weight drop of a shutter curtain and obstacle detection; a connection section C1 which can be electrically connected to a generator G which is a temporary power source different from a commercial power source; an electric opening operation section 7A; a first wiring (wire α) for electrically connecting the commercial power source and the control device 4; and a second wiring (wire EW1) for electrically connecting the electric switch M and the connection section C1. When an opening part is opened, the generator G is connected to the connection section C1, and the shutter curtain 1 can be raised electrically by opening operation from the electric opening operation section 7A.SELECTED DRAWING: Figure 1

Description

The present invention relates to a shutter, and more particularly to a fire shutter provided with a shutter curtain that lowers its own weight by releasing a brake by operating an automatic closing device or operating a manual closing device in the event of a fire or the like.

Fire shutters are installed to prevent the spread of fire by forming a section in the building in the event of a fire. When the opening of the fire shutter is fully open, the shutter curtain's own weight is regulated by the brake of the opening / closing machine, but when the detector detects a fire, the brake is released based on the signal from the disaster prevention panel. The shutter curtain is lowered by its own weight to the fully closed state to form a section.

In distribution warehouses, etc., fire shutters may be used as partition walls to operate in a fully closed state, but due to the need for maintenance, etc., there is a desire to open shutters that are normally fully closed once or twice a year. There is.

In that case, if a manual fire shutter device equipped with a manual switch is installed, the shutter curtain in the fully closed state can be opened by manually operating the input shaft of the switch. For example, especially because the opening in the warehouse is large, it takes a considerable amount of time to manually wind up the shutter curtain.

Therefore, it is conceivable to electrically drive the shutter curtain using an electric switch, but in order to electrically drive the electric switch with a commercial power source, it is necessary to lay a commercial power source for electrically driving the electric switch. Therefore, it is not economical to lay a commercial power source for opening once or twice a year because a large amount of cost and labor are required for the laying work. In order to supply electric power of a size that can drive an electric switch from a commercial power source, it is necessary to lay an electric wire of a certain thickness, which adversely affects the workability and laying cost of the laying work. ..

Patent Document 1 describes that a generator is used as a power source for a shutter switch, but it can be used as a commercial power source (first power source) as a normal power source and an emergency power source (second power source). It discloses a power supply switching method for switching between a generator and a generator, and it is assumed that a commercial power source is normally used as a power source for the shutter switch.
JP-A-2018-35560

An object of the present invention is to provide a shutter that enables electric opening of a shutter curtain of a fire shutter while suppressing an installation cost.

The technical means adopted by the present invention is
The left and right guide rails installed on the skeleton and
A shutter curtain that opens and closes the opening between the left and right guide rails,
An electric switch equipped with a shutter control panel and
A control device that can operate with less power than the electric switch,
An automatic closing device that releases the brake of the electric switch and lowers the shutter curtain by its own weight.
Obstacle detection means that detects obstacles when the shutter curtain descends and generates an obstacle detection signal,
With a manual closing device,
The first wiring that electrically connects the commercial power supply and the control device,
A connection that can be electrically connected to a temporary power supply that is different from the commercial power supply,
A second wiring that electrically connects the electric switch and the connection portion,
Including
The control device operates with the first electric power constantly supplied from the commercial power source via the first wiring, and operates the automatic closing device in response to an input of a fire detection signal or an operation from the manual closing device. The shutter curtain is lowered by its own weight, a brake return signal is generated in response to the input of the obstacle detection signal, the brake is returned, and the shutter curtain during the weight drop is stopped.
The first state, in which no wiring is provided to electrically connect the electric switch and the commercial power source, and the electric switch is not electrically connected to any power source including the temporary power source. It is connected to the temporary power supply via the second wiring, and has a second state capable of operating with the second power supplied from the temporary power supply when the temporary power supply is connected.
The shutter.

The control device can operate with a smaller electric power than the electric switch. That is, the first electric power supplied to the control device through the first wiring may be much smaller than the second electric power supplied to the electric switch through the second wiring. In other words, the second wiring is an electric wire capable of supplying a larger electric power (at least the electric power capable of driving the electric switch) as compared with the first wiring, while the first wiring is such that the control device can be operated. Any electric wire that supplies electric power may be used, and it is not possible to supply enough electric power to drive the electric switch. The first wiring may be a wire thinner than the second wiring. Further, in one embodiment, the first wiring needs to supply a single-phase 100V power supply, and the second wiring needs to supply a three-phase 200V power supply. The cost of laying the first wiring that electrically connects the commercial power supply to the control device is relatively low.
In the present embodiment, the wiring (having a physical configuration corresponding to the second wiring) for electrically connecting the electric switch and the commercial power supply is not provided, and the commercial power supply and the electric switch are electrically connected. There is no laying cost to connect to.

In one aspect, the first wiring electrically connects the commercial power source and the control device without going through the electric switch.
In one aspect, the control device includes a small capacity battery, and can output a signal to the automatic closing device by using the electric power of the battery even in the event of a power failure. The battery mounted on the control device is charged by the first electric power constantly supplied from the commercial power source via the first wiring.

In one embodiment, the second wiring extends through the skeleton or the guide rail to a lower portion of the skeleton or a lower portion of the guide rail, and the second wiring is the connection at the lower portion. It has a part.
Typically, the shutter includes an electric opening operation unit that opens the shutter curtain using the temporary power supply.
In one embodiment, the power connection device including the connection part and the electric opening operation part is provided.
The second wiring electrically connects the electric switch and the connection portion of the power supply connection device.
The electric release operation unit may be provided in the shutter before the temporary power supply is connected, or may not be provided in the shutter in the state before the temporary power supply is connected.
In the latter case, the electric opening operation unit is prepared when the temporary power supply is used. More specifically, the electric opening operation unit is provided on the cord between the connection unit and the outlet (generator, etc.). Yes, an electric release operation unit is prepared when a temporary power supply is connected, or an electric release operation unit is provided when a connector different from the connection unit is provided in the power connection device and a temporary power supply is used. Examples thereof include a mode of connecting to the connector.
In one embodiment, the signal line from the electric opening operation unit is electrically connected to the electric switch (shutter control panel).
In one embodiment, the signal line from the electric opening operation unit is electrically connected to the control device, and is electrically connected to the electric switch (shutter control panel) via the control device.
The shutter may further include an electric closing operation unit that closes the shutter curtain, and may further include a stop operation unit.

In one embodiment, the temporary power source is any one of a generator, a power outlet, and a battery.
Typically, the generator as the temporary power source is a portable generator.
In one embodiment, a cord reel is provided with a temporary electric wire for connecting the power outlet and the connection portion, the first temporary electric wire for connecting the connection portion and the cord reel main body, and the temporary electric wire drawn from the cord reel and connected to the power outlet. It consists of a second temporary electric wire.
In one aspect, the battery as the temporary power source may be a mobile body including a battery capable of supplying electric power capable of opening and closing a shutter, for example, an electric vehicle or the like.

In one embodiment, in the shutter, the electric switch is normally not connected to any power source, including the temporary power source and the commercial power source, and when the opening is opened, the temporary power source is applied to the connection portion. By connecting, the shutter curtain is electrically raised by the opening operation from the electric opening operation unit.
In one embodiment, in the shutter, the electric switch is normally not connected to any power source, including the temporary power source and the commercial power source, and when the opening is opened, the temporary power source and the temporary power source are used. An electric opening operation unit that opens the shutter curtain using the above is prepared, and by connecting the temporary power supply to the connection unit, the shutter curtain is electrically raised by the opening operation from the electric opening operation unit. It is configured.
That is, the temporary power supply is a power supply that is not connected to the connection portion in the normal usage state of the shutter device and is not in a state where power can be supplied to the switch, and an electric drive of the shutter is required. It is a power supply that is temporarily connected to the connection portion only when it is used.

In one embodiment, the shutter device is normally used with the opening fully closed or the opening fully open, and any power source (including commercial power source or battery) is normally used to power the switch. Not in a possible state.
In one aspect, the shutter device constitutes a partition wall in a warehouse or factory, and is normally used with the opening fully closed.
The power connection device may be provided with an electric closing operation unit (for example, a closing switch) in addition to the electric opening operation unit (for example, an open switch) to enable the shutter curtain to be electrically lowered.

In the present invention, the obstacle detecting means for detecting an obstacle when the shutter curtain descends and generating an obstacle detection signal is either a wired type (for example, a cord reel type) or a wireless type (for example, a method using infrared rays or radio waves). It may be of the type of.
In one embodiment, a fire detection signal, a manual closing signal from the manual closing device, and an obstacle detection signal are input to the control device, and the control unit that receives these signals is an automatic closing device (brake release mechanism, A predetermined signal is transmitted to (equipped with a brake return mechanism).
More specifically, in the event of a fire, the control device (harm prevention interlocking repeater) automatically closes the operation signal (brake release signal) based on the signal from the disaster prevention panel (for example, DC24V) based on the detection of the smoke detector. By outputting to, the automatic closing device (brake release mechanism) is activated to release the brake of the manual opening and closing machine, the shutter curtain is lowered by its own weight to prevent the spread of fire, and obstacles are removed while the shutter curtain is descending. When it is detected, the brake return signal is output to the automatic closing device based on the signal from the obstacle detection means to activate the automatic closing device (brake return mechanism) and release the brake of the manual opening / closing machine. To stop the descent of the shutter curtain. After removing the obstacle, the start signal (DC24) is energized from the control device 4 to the automatic closing device 5, the brake of the electric switch M is released, and the shutter curtain 1 resumes its own weight descent.
In one embodiment, the release signal from the electric release operation unit is transmitted to the shutter control panel of the electric switch without passing through the control device.
By the opening operation from the electric opening operation unit, the shutter curtain in the state of being lowered by its own weight or in the fully closed state can be opened.
Further, by using the battery built in the control device 4, it is possible to stop the shutter curtain during descent based on obstacle detection and re-descent after removing the obstacle.
In the present specification, the automatic closing device may include an operating portion as a means for releasing / returning the brake, and the operating portion may be provided adjacent to or integrally with the main body of the automatic closing device, or may be automatically provided. It may be provided separately from the closing device main body.

In one aspect, the power connection device includes a housing provided with the connection portion and the electric opening operation portion, and is provided at a lower portion of the skeleton or a lower portion of the guide rail.
In one aspect, the housing is a so-called operation box, and the electric opening operation portion and the connection portion are provided in the housing as an operation box (for example, a front portion in the housing).
In one aspect, the electric opening operation unit and the connection portion are provided adjacent to each other on the upper and lower sides, with the electric opening operation unit located on the upper side and the connecting portion located on the lower side.
In the power supply connection device, the connection unit and the electric opening operation unit may be provided in separate housings.
The connection portion and the electric opening operation portion do not necessarily have to be provided in the vicinity.
In one embodiment, the manual closing device is provided at a lower portion of the skeleton, and the power connection device is provided adjacent to the manual closing device.
In one aspect, the manual closing device is provided within the housing as an operating box.
In one embodiment, the manual closing device and the power connection device are provided in independent housings, but they may be provided in a common housing.

Other technical means adopted by the present invention are
The left and right guide rails installed on the skeleton and
A shutter curtain that opens and closes the opening between the left and right guide rails,
An electric switch equipped with a shutter control panel and
A control device that can operate with less power than the electric switch,
An automatic closing device that releases the brake of the electric switch and lowers the shutter curtain by its own weight.
Obstacle detection means that detects obstacles when the shutter curtain descends and generates an obstacle detection signal,
With a manual closing device,
The automatic closing device is activated in response to the input of the fire detection signal or the operation from the manual closing device to lower the shutter curtain by its own weight, and the brake return signal is generated in response to the input of the obstacle detection signal to release the brake. A control device that stops the shutter curtain during its own weight descent,
It is a power supply method in a shutter equipped with
The commercial power supply and the control device are electrically connected by the first wiring.
Equipped with a connection that can be electrically connected to a temporary power supply different from the commercial power supply
The electric switch is not connected to the commercial power source, and the electric switch and the connection portion are electrically connected by a second wiring.
The control device operates with the first electric power constantly supplied from the commercial power source via the first wiring.
The electric switch is operated with the second electric power supplied from the temporary power supply via the second wiring only when the temporary power supply is connected to the connection portion.

In the present invention, in a shutter provided with a control device that operates by supplying power and an electric switch, the power supply of the control device that can lay a power line from a commercial power source at low cost is used as a commercial power source, and the power source is used from the commercial power source. The electric switch, which is expensive to lay the power line, is not connected to the commercial power supply, but is used as a temporary power supply only when necessary (for example, when the shutter device normally used in the fully closed state is electrically opened). By connecting, electrical wiring for driving the electric switch using a commercial power supply becomes unnecessary, the cost of laying the power supply can be reduced, and the installation cost of the fireproof shutter can be suppressed. Can be done.

It is a schematic front view of a fire shutter device provided with a hazard prevention device. It is a figure which shows the structure which connects the outlet as a temporary power source to a temporary power source connection part via a temporary electric wire. It is a schematic plan view of the warehouse where a plurality of shutter devices are installed.

A fire shutter with a hazard prevention device will be described with reference to FIG. In the figure, the solid line connecting the elements is an electric wire. As shown in FIG. 1, the shutter device includes a shutter curtain 1 that opens and closes an opening formed between the left and right guide rails 2, and a take-up shaft provided above the opening and around which the shutter curtain 1 is wound. (Not shown), an electric switch M provided above the opening and closer to one side in the width direction of the opening, and a transmission connection with the take-up shaft, a manual closing device 3, and a control device (not shown). It is provided with a hazard prevention interlocking repeater) 4, an automatic closing device 5, a fire detector 6a, a disaster prevention panel 6b, and a commercial power source for supplying power to the control device 4.

The shutter curtain 1 of the fire shutter is configured by vertically connecting a plurality of long slats extending in the opening width direction, and a seat plate 1A is provided at the lower end. The seat plate 1A has a long upper seat plate (not shown) extending in the width direction of the opening and a long upper seat plate suspended on the lower side of the upper seat plate so as to be relatively movable up and down with respect to the upper seat plate. It is composed of a lower seat plate (not shown), and the seat plate 1A includes a seat plate switch which is one component of an obstacle detecting means.

In one embodiment, the fire shutter according to the present embodiment is normally wound around a take-up shaft (not shown) in the ceiling behind the opening and is in a storage posture to open the opening. When a fire breaks out in the fully open state, the fire is detected by the fire detector 6a, and the shutter curtain 1 is operated by the automatic closing device 5 based on the fire detection signal from the disaster prevention panel 6b. The seat plate 1A at the lowermost end of the shutter curtain 1 lands on the floor and completely closes the opening while being guided by the groove portion of the shutter.

The electric switch M is a switch provided with a brake and a motor, and the output shaft (not shown) of the electric switch M is transmitted and connected to the take-up shaft via a transmission element such as a chain or a sprocket. .. When the brake is enabled, the rotation of the output shaft and take-up shaft of the switch is restricted, and when the brake is released, the output shaft and take-up shaft of the switch can rotate. When the brake of the electric switch M is released, the shutter curtain 1 in the fully open posture can lower its own weight. In the present embodiment, the shutter curtain 1 can be electrically opened by driving the electric switch M with the electric power from the temporary power source, which will be described in detail later.

In the fire shutter control system according to the present embodiment, shutter control is performed via a control device (harm prevention interlocking repeater) 4. As shown in FIG. 1, the commercial power supply and the control device 4 are electrically connected by the electric wire α1 (power line), and the control device 4 and the automatic closing device 5 are electrically connected by the electric wire α2 (signal line). The disaster prevention panel 6b and the control device 4 are electrically connected by the electric wire α3 (signal line), and the manual closing device 3 and the control device 4 are electrically connected by the electric wire α4 (signal line). The cord reel C and the control device 4 are electrically connected by an electric wire α5 (signal line).

The automatic closing device 5 according to the present embodiment is provided adjacent to the electric switch M, and weights the shutter curtain 1 by inputting a fire detection signal from the disaster prevention panel 6b or a manual closing signal from the manual closing device 3. Let it descend. In the present embodiment, the fire detection signal and the manual closure signal are input to the control device (harm prevention interlocking repeater) 4, and the control device (harm prevention interlocking repeater) 4 responds to the input of the fire detection signal or the manual closure signal. A brake release signal is output from the automatic closing device 5 to release the brake of the electric opening / closing device M by the operation of the automatic closing device (brake release mechanism) 5, and the shutter curtain 1 is lowered by its own weight.

The seat plate 1A provided at the lowermost end of the shutter curtain 1 has a seat plate switch, and when an obstacle exists below the shutter curtain 1 whose weight is descending, the seat plate switch detects this and determines the obstacle. The obstacle detection signal is output to the control device (harm prevention interlocking repeater) 4 by the signal line 1B. The signal line 1B connected to the seat plate switch is wound in a cord reel C located at the upper end of the opening while holding an urging force in the winding direction.

As shown in FIG. 1, the disaster prevention panel 6b, the automatic closing device 5, and the wired obstacle detection means are, for example, a cable (electric wire α3, electric wire) connected to a control device (hazard prevention interlocking repeater) 4 arranged behind the ceiling. They are electrically connected via α2 and the electric wire α5). When the control device (harm prevention interlocking repeater) 4 receives a signal from the disaster prevention panel 6b based on the detection of the smoke detector 6a in the event of a fire, the control device (harm prevention interlocking repeater) 4 transmits a brake release signal to the automatic closing device 5 to automatically close the device (brake release). Mechanism) 5 is operated to release the brake of the electric opening / closing device M to lower the shutter curtain 1 by its own weight. On the other hand, when the control device (harm prevention interlocking repeater) 4 receives the obstacle detection signal generated by the shutter curtain 1 descending by its own weight in contact with an obstacle (for example, an evacuee), the control device (harm prevention interlocking repeater) 4 uses a wired obstacle detection. , The brake return signal is transmitted to the automatic closing device 5 to operate the automatic closing device (brake return mechanism) 5, the brake of the electric opening / closing device M is returned, and the self-weight descent of the shutter curtain 1 is stopped.

The operation of the automatic closing device 5 will be described. When the control device (harm prevention interlocking repeater) 4 receives the fire signal from the disaster prevention panel 6b, the automatic closing device (brake release mechanism) 5 is activated by the energization from the control device 4, and the brake unit of the electric switch M is activated. Is released and the shutter is lowered by its own weight to form a fire protection compartment. When an obstacle comes into contact with the seat plate 1A at the lower end of the shutter curtain 1 that descends by its own weight, an obstacle detection signal is transmitted from the seat plate switch to the control device 4, and a command from the control device 4 that receives the obstacle detection signal. Then, the brake of the electric switch M is released.

When the detection signal is transmitted from the seat plate switch to the control device (harm prevention interlocking repeater) 4, the control device 4 that receives the detection signal sends the detection signal to the automatic closing device 5 for a predetermined time, for example, about 0.5 to 1 second. , DC24V is energized (brake return signal), the brake return mechanism is activated, and the brake of the electric switch M is released. When the obstacle is removed, the control device 4 detects that the obstacle has been removed via the seat plate switch. After detecting that the obstacle has been removed, a start signal (DC24) is energized from the control device 4 to the automatic closing device 5 after a predetermined time, for example, 10 to 20 seconds, and the brake of the electric switch M is released. Then, the shutter curtain 1 resumes its own weight descent.

The obstacle detecting means according to the present embodiment is a wired type, and the signal line 1B connected to the seat plate switch exerts an urging force in the winding direction in the cord reel C installed at the upper end of the opening. It is held and wound, and the signal line 1B is wound or unwound on the cord reel C as the shutter curtain 1 is driven up and down. As a specific configuration of the seat plate switch, the seat plate is composed of an upper seat plate and a lower seat plate, and is provided between the upper seat plate and the lower seat plate by moving the lower seat plate upward with respect to the upper seat plate. A switch is input, a tape switch is provided on the lower surface of the seat plate, and the seat plate is composed of an upper seat plate and a lower seat plate, and the lower seat plate moves upward with respect to the upper seat plate. An example is one in which a tape switch in the guide rail is input by a link mechanism provided at the end of the guide rail. Further, the obstacle detection may be a wireless method.

A manual closing device 3 is provided on the wall located on the side of the guide rail 2. The manual closing device 3 is provided with an operation box provided at a height that is easy to operate on the wall surface in the vicinity of the shutter device, and the operation box is provided with a lid, and the lower portion of the front portion exposed by opening the lid , An emergency operation switch 30 (which can be pushed and operated without opening the lid) is provided. The manual closing device 3 according to the present embodiment is an electric manual closing device. For example, by pressing the emergency operation switch 30, a non-voltage contact signal is generated, and a brake release signal is output from the control device 4. The emergency operation switch 30 is used, for example, when it is desired to immediately lower the shutter curtain 1 by its own weight prior to the control operation by the fire signal input. A recovery button (not shown) is provided on the front surface of the manual closing device 3, and the control device 4 recovers from the fire mode to the normal mode by pressing the recovery button.

Power from the commercial power source is constantly supplied to the control device (hazard prevention interlocking repeater) 4 through the electric wire α1, but it is small in order to secure the control operation in the event of a power failure separately from the normal commercial power source. It has a built-in capacity battery (not shown). The battery is charged using the electric power constantly supplied from the commercial power source. Even in an emergency situation where the commercial power supply is cut off due to a power failure in the event of a fire, the battery outputs a signal based on the fire detection signal, activates the automatic closing device 5, and lowers the shutter curtain 1 by its own weight. Further, it is possible to stop the shutter curtain 1 during its own weight descent based on obstacle detection, and to re-descent the shutter curtain 1 after removing the obstacle.

Although the fire shutter device according to the present embodiment includes the electric switch M, the electric switch M is not normally connected to any commercial power source and can drive the electric switch M. It does not have a battery that can supply power. A general electric shutter switch is usually connected to a commercial power source via a circuit breaker Br, and is driven by electric power supplied from the commercial power source. On the other hand, in the present embodiment, the commercial power supply is not connected to the primary side of the circuit breaker Br to which the electric wire EW1 ″ extending from the shutter control panel 6 of the electric switch M is connected, and the electric wire EW1 Is connected, the electric wire EW1 extends to a lower portion via a wall body (framework), and a connector C1 as a connecting portion is provided at an end portion of the electric wire EW1. A temporary power supply can be connected to the connector C1. A connection portion at the tip of the temporary electric wire EW2 can be connected to the connector C1 from the outside, and a temporary power supply is connected to the base end of the temporary electric wire EW2.

The shutter device according to the present embodiment includes a power supply connection device 7 including an operation box as a housing including an electric opening operation unit (open switch 7A) and a connector C1 as a connection unit. In the present embodiment, the electric open operation unit (open switch 7A) and the connection unit (connector C1) are provided adjacent to each other on the upper and lower sides, with the open switch 7A located on the upper side and the connector C1 located on the lower side. A generator G exemplified as a temporary power source can be connected to the connector C1. More specifically, the connection portion (connector C2) at the tip of the temporary electric wire EW2 can be connected to the connector C1 from the outside, and the generator G as a temporary power source is connected to the base end of the temporary electric wire EW2. Possible or pre-connected. In the present embodiment, the operation box of the power connection device 7 is provided on the skeleton (wall) adjacent to the operation box of the manual closing device 3.

The electric switch M and the connection portion (connector C1) of the power supply connection device 7 are electrically connected by electric wires EW1'and electric wires EW1. A commercial power supply is not connected to the primary side of the circuit breaker Br to which the electric wire EW1 ″ extending from the shutter control panel 6 of the electric switch M is connected, but the first end of the electric wire EW1 is connected. The electric wire EW1 extends to a lower portion via a wall body (framework), and a connector C1 as a connection portion with a temporary power source is provided at the second end of the electric wire EW1. One end of the electric wire EW1', which is a signal line, is connected to the shutter control panel 6 of the electric switch M, and the other end is electrically connected to the power supply connection device 7.

In one embodiment, the electric wire EW1 connected to the primary side of the circuit breaker Br extends through the wall on the side of the guide rail 2 to the operation box of the power connection device 7 embedded in the lower portion of the wall. A power connection device 7 is electrically connected to the second end of the electric wire EW1. Similarly, the electric wire EW1', which is a signal line, extends through the inside of the wall. The operation box of the power connection device 7 is provided with a lid (not shown), and the open switch 7A and the connector C1 provided on the front portion 70 and the front portion 70 are exposed by opening the lid.

In the above example, the electric wires EW1 for supplying electric power to the electric switch M and the electric wires EW1'for supplying signals are provided so as to pass through the inside of the wall, but the electric wires EW1 and EW1'are provided along the outer surface of the wall body. You may. Further, the electric wires EW1 and EW1'may be guided to the lower part of the opening via the guide rail 2. More specifically, the electric wire extends through the inside of the guide rail 2 or along the outer surface of the guide rail 2 to the lower portion of the guide rail 2, and the end portion of the electric wire EW1 is reached from the outside at the lower portion. A connector C1 is provided as a connectable connection portion. The connector C1 may be provided so as to be exposed on the outer surface of the guide rail 2, or may be provided so as to be exposed to the outside on the front surface of the power connection device when the guide rail 2 is provided with the power connection device. .. Alternatively, the electric wire EW1 passes through the inside of the wall or the guide rail 2, or along the outer surface of the wall or the outer surface of the guide rail 2, and the lower part of the guide rail 2 or the lower part of the wall (floor surface or inside the floor). A connector C1 is provided as a connection part that can be connected from the outside on the wall body, on the floor surface, or in the floor surface independent of the operation box and the guide rail 2 of the power connection device. You may.

The temporary power supply is a power supply that can be connected to a connection portion (connector C1) provided on the electric wire EW1 that supplies electric power to the electric switch M, and in a normal shutter device usage state, the connection portion (connector C1). It is a power supply that is not connected to the electric switch M and is not in a state where power can be supplied to the electric switch M, and is temporarily connected to the connection portion (connector C1) only when the electric drive of the shutter is required. It is a power supply.

In the present embodiment, a portable generator G is prepared as a temporary power source, and a temporary electric wire EW2 having a connector C2 that can be connected to the connector C1 is provided on the output side of the generator G to provide an operation box of the power supply connection device 7. The generator G can be connected to the connector C1 exposed on the front surface 70. The generator G is, for example, a movable generator G provided with a traveling roller, and is normally stored in a suitable place.

In this way, by providing the connector C1 to which the generator G as a temporary power source can be connected from the outside in the operation box provided with the electric release operation switch 7A, the generator G can be connected at the same place as the shutter open switch 7A. Can be performed, and the generator G can be connected and the operation from the open switch 7A can be smoothly performed.

Instead of the generator G, the power outlet P exposed on the wall may be used as a temporary power source, and the power outlet P and the connector C1 at the end of the electric wire EW1 may be connected by using the temporary electric wire EW2'. In one embodiment, as shown in FIG. 2, the temporary wire EW2'includes a first temporary wire EW20 and a second temporary wire EW21 that can be pulled out from a cord reel (electrical drum) CR. A first connection portion C2 that can be connected to the connector (power connection portion) C1 is provided at one end in the length direction of the first temporary electric wire EW20, and a second connection portion C3 is provided at the other end. The second connection portion C3 of the first temporary wire EW20 can be connected to the outlet C4 of the main body of the cord reel CR, and the third connection portion C5 at the tip of the second temporary wire EW21 extending from the main body of the cord reel is the power outlet P. Connected to. When the power outlet P is used as a temporary power source, a transformer is appropriately provided and a voltage is provided as necessary (for example, when the switch operates at 200 V and the voltage of the power outlet P is not 200 V). To convert.

As described above, in the present embodiment, the temporary power supply for supplying the electric power for driving the electric switch M is a portable generator G, a power outlet P, or a battery (for example, a mobile carriage) that can be connected to the connector C1. Although it is a mounted battery), these temporary power supplies are connected to the connector C1 in the normal state (the shutter device according to the present embodiment is in the fully open state or the fully closed state in the normal use state). That is, these temporary power sources are not connected to the electric switch M.

In one embodiment, the shutter device according to the present embodiment is normally used in a fully closed state of the shutter, and in the normal use state, a portable generator or a power outlet is not connected to the connector C1. .. When it becomes necessary to open the shutter for reasons such as maintenance, for example, a generator G is prepared as a temporary power source, and the connector C2 of the temporary electric wire EW2 extending from the generator G is connected to the connector C1. By supplying electricity to the electric switch M using the generator G as a temporary power source, the electric switch M can be driven, and pressing the open switch 7A raises the shutter curtain 1.

In one embodiment, the shutter curtain 1 is raised by the push-off operation of the open switch 7A (the shutter curtain 1 is raised only while the push operation of the open switch 7A is continued). Alternatively, the stop operation may be performed by the pressing pattern of the open switch 7A using the self-holding circuit instead of the push-off operation. For example, the shutter curtain 1 starts to rise by the first pressing of the open switch 7A. The rising shutter curtain 1 may be stopped by the second pressing.

When lowering the shutter curtain 1 once raised by using the power from the temporary power source, the shutter curtain 1 can be lowered by its own weight by the operation from the manual closing device, and an obstacle occurs during the lowering of the own weight of the shutter curtain 1. When an object is detected, the descent of the shutter curtain 1 is stopped by a signal from the control device 4, and when an obstacle is not detected, the shutter curtain 1 stopped by the self-weight re-descent means re-descends and all It becomes a closed state. The shutter according to the present embodiment is a fire shutter, and when the control device (harm prevention interlocking repeater) 4 receives the fire signal from the disaster prevention panel 6b, the automatic closing device (brake release mechanism) 5 is energized by the control device 4. Operates to release the brake portion of the electric switch M and lower the shutter by its own weight to form a fire prevention section. In the present embodiment, the release signal from the electric release operation switch 7A is transmitted to the shutter control panel 6 of the electric switch M through the electric wire EW1'that electrically connects the connector C1 and the shutter control panel 6. .. The release signal from the electric release operation switch 7A is independent of the control by the control device 4, and the release signal from the electric release operation switch 7A is valid regardless of the presence or absence of the fire signal, and the shutter curtain 1 is released. Is possible. More specifically, the shutter is being lowered due to the generation of a fire signal, or even after the shutter with its own weight is in the fully closed position (before the fire mode is changed to the normal mode). The curtain 1 can be opened. Therefore, when it is desired to raise the shutter curtain 1 in the state of being lowered by its own weight or in the fully closed state (for example, when it is desired to secure a sufficient opening for the evacuees to pass through), the control device 4 is electrically operated even in the fire mode. The shutter curtain 1 can be raised by pressing the release operation switch 7A. On the other hand, the signal from the conventional electric open / close operation unit (consisting of a three-point push button switch of an open switch, a close switch, and a stop switch) is invalidated when the control device 4 is in the fire mode. In the present embodiment, since the shutter curtain 1 is opened by the push-off operation of the electric release switch 7A, if the evacuees take their hands off the electric release switch 7A after passing through the opening, the electric switch M is driven. Stops, and the shutter curtain 1 descends again. Further, when an obstacle comes into contact with the seat plate 1A at the lower end of the shutter curtain 1 that descends by its own weight, an obstacle detection signal is transmitted from the seat plate switch to the control device 4, and the control device 4 receives the obstacle detection signal. The brake of the electric switch M is restored by the command of.

In the present embodiment, the electric switch which is the driving means of the shutter device is not connected to the commercial power supply, and the generator can be easily connected only when the shutter is opened, so that the commercial power supply can be used. The electrical wiring that connects the commercial power supply and the electric switch is no longer required, and the cost of laying the power supply can be reduced (especially when multiple shutters are installed at the site such as a warehouse). In the present embodiment, if there is a generator or a power outlet, the shutter device (the electric switch is not connected to the commercial power source and the battery is not mounted) that is normally used in the fully closed state is electrically operated. It is also possible to electrically open a plurality of shutter devices by using one portable generator. Further, the shutter device according to the present embodiment is equipped with a battery and is provided with a control device (harm prevention interlocking repeater) 4 electrically connected to a commercial power source, which causes an obstacle when the shutter curtain 1 is lowered by its own weight. Object detection is possible, and it is possible to descend again after removing obstacles. In one embodiment, the power source for supplying electric power in the control device 4 may be a single-phase 100V, and the electric power required for the operation of the control device 4 is small, so that the electric wire α1 is relatively easy to lay and the cost is low.

In the present embodiment, only the open switch 7A and the connector C1 are provided on the front surface 70 of the power connection device 7, but the closed switch 7B may be provided on the front surface 70 (lower figure of FIG. 1). In one embodiment, closing from the closing switch 7B is a push-off operation similar to the opening switch 7A. Further, a stop switch (not shown) may be provided in addition to the open switch 7A or in addition to the open switch 7A and the close switch 7B.

In the illustrated embodiment, the manual closing device 3 and the power supply connecting device 7 are provided in independent housings, but they may be provided in a common housing. For example, an emergency operation switch, an open switch, a close switch, and a stop switch are provided in a common housing so that input signals from the emergency operation switch, open switch, close switch, and stop switch are transmitted to the control device 4. You may. In this case, the input signals from the open switch, the close switch, and the stop switch are input to the electric switch (shutter control panel 6) M via the control device 4, and the open / close operation can be performed without performing the push-off operation by the self-holding circuit. It is possible.

FIG. 3 is a schematic plan view of a warehouse in which a plurality of shutter devices SD1 to SD12 are arranged. The warehouse has a plan-viewing outer wall, and one of the outer walls has three openings (doorways), and shutter devices SD1, SD2, and SD3 are installed so as to open and close each opening. .. The shutter devices SD1, SD2, and SD3 are electric shutters used in combination with management, and in the illustrated embodiment, these shutter devices SD1, SD2, and SD3 are in a fully open state.

In the warehouse, a stepped portion F for unloading is provided so as to be separated from the opening and opposed to the opening so that a transport vehicle can enter the vicinity of the stepped portion F. Walls extending in the longitudinal direction and the lateral direction are provided in the warehouse, and a plurality of openings are formed in these walls, and shutter devices SD4 to SD12 are installed in each opening. In the illustrated embodiment, the shutter devices SD4, SD5, SD6, SD7, SD11, SD12 are in the fully closed state, and the shutter devices SD8, SD9, SD10 are in the fully open state. That is, the shutter devices SD4, SD5, SD6, SD7, SD11, and SD12 form a partition wall, and the space inside the warehouse is divided into three sections. In this way, by selecting the shutter device and setting it in the open posture or the closed posture as needed, a desired section can be formed in the warehouse.

The shutter devices SD4 to SD12 are composed of the fire shutters shown in FIG. The electric switches M of the shutter devices SD4 to SD12 are not connected to any commercial power source and do not have a battery capable of driving the electric switches M. The electric wire EW1 extending from each electric switch M of each of the shutter devices SD4 to SD12 extends to a lower portion via the wall body or the guide rail 2, and a connector C1 is provided at the end of the electric wire EW1. is there. The connector C1 can be connected to the connection portion C2 of the generator G from the outside.

When it is necessary to open and close the shutter devices SD4 to SD12 for reasons such as maintenance, the connection part C2 of the generator G is connected to the connector C1 of the desired shutter device, and the generator G is used as a temporary power source for electric power. By supplying electricity to the switch M, the electric switch M can be driven. For the shutter devices SD4, SD5, SD6, SD7, SD11, and SD12, the shutter curtain 1 is raised by pressing the open switch 7A. Regarding the shutter devices SD8, SD9, and SD10, the shutter curtain 1 is lowered by its own weight by operation from the manual closing device 3 or input of a pseudo fire signal. When the shutter curtain 1 once opened is put into the closed posture again, the shutter curtain 1 is lowered by its own weight by the operation from the manual closing device 3 or the input of the pseudo fire signal, and the shutter curtain 1 once closed is put into the open posture again. In this case, the connection portion C2 of the generator G is connected to the connector C1 of the desired shutter device, and the open switch 7A is pressed to electrically open the shutter curtain 1 using the generator G as a temporary power source. FIG. 3 shows a case where the connector C1 is connected to the power outlet P as a temporary power source by using an electric wire provided with a cord reel CR in addition to the generator G as a temporary power source. The temporary electric wire EW2'that connects the connector C1 and the power outlet P includes the first temporary electric wire EW20 that connects the connector C1 and the cord reel main body, and the second temporary electric wire EW20 that is pulled out from the cord reel and connected to the power outlet P. It is composed of an electric wire EW21 (see FIG. 2). In FIG. 3, the generator G and the power outlet P are illustrated as the temporary power source, but instead of the generator G and the power outlet P, for example, a battery mounted on a mobile carriage may be used as the temporary power source.

1 Shutter curtain 2 Guide rail 3 Manual closing device 4 Control device (hazard prevention interlocking repeater)
5 Automatic closing device 7 Power connection device 7A Electric opening operation unit (open switch)
M Electric switch G Generator C1 Connection (connector)
C2 connection (connector)
EW1 electric wire (power line, second wiring)
EW1'electric wire (signal line)
EW1 ″ Electric wire (power line)
EW2 Temporary electric wire α1 electric wire (power line, first wiring)

Claims (7)

The left and right guide rails installed on the skeleton and
A shutter curtain that opens and closes the opening between the left and right guide rails,
An electric switch equipped with a shutter control panel and
A control device that can operate with less power than the electric switch,
An automatic closing device that releases the brake of the electric switch and lowers the shutter curtain by its own weight.
Obstacle detection means that detects obstacles when the shutter curtain descends and generates an obstacle detection signal,
With a manual closing device,
The first wiring that electrically connects the commercial power supply and the control device,
A connection that can be electrically connected to a temporary power supply that is different from the commercial power supply,
A second wiring that electrically connects the electric switch and the connection portion,
Including
The control device operates with the first electric power constantly supplied from the commercial power source via the first wiring, and operates the automatic closing device in response to an input of a fire detection signal or an operation from the manual closing device. The shutter curtain is lowered by its own weight, a brake return signal is generated in response to the input of the obstacle detection signal, the brake is returned, and the shutter curtain during the weight drop is stopped.
The first state, in which no wiring is provided to electrically connect the electric switch and the commercial power source, and the electric switch is not electrically connected to any power source including the temporary power source. It is connected to the temporary power supply via the second wiring, and has a second state capable of operating with the second power supplied from the temporary power supply when the temporary power supply is connected.
shutter. The first wiring electrically connects the commercial power supply and the control device without passing through the electric switch.
The shutter according to claim 1. The shutter according to any one of claims 1 and 2, further comprising an electric opening operation unit for opening the shutter curtain using the temporary power supply. The release signal from the electric release operation unit is transmitted to the shutter control panel of the electric switch without going through the control device.
In the event of a fire, the shutter curtain can be opened while its own weight is descending or in a fully closed state by the opening operation from the electric opening operation unit.
The shutter according to claim 3. The second wiring extends to a lower portion of the skeleton or a lower portion of the guide rail via the skeleton or the guide rail, and the second wiring includes the connection portion at the lower portion. ,
The shutter according to any one of claims 1 to 4. The temporary power source is any one of a generator, a power outlet, and a battery.
The shutter according to any one of claims 1 to 5. The left and right guide rails installed on the skeleton and
A shutter curtain that opens and closes the opening between the left and right guide rails,
An electric switch equipped with a shutter control panel and
A control device that can operate with less power than the electric switch,
An automatic closing device that releases the brake of the electric switch and lowers the shutter curtain by its own weight.
Obstacle detection means that detects obstacles when the shutter curtain descends and generates an obstacle detection signal,
With a manual closing device,
The automatic closing device is activated in response to the input of the fire detection signal or the operation from the manual closing device to lower the shutter curtain by its own weight, and the brake return signal is generated in response to the input of the obstacle detection signal to release the brake. A control device that stops the shutter curtain during its own weight descent,
It is a power supply method in a shutter equipped with
The commercial power supply and the control device are electrically connected by the first wiring.
Equipped with a connection that can be electrically connected to a temporary power supply different from the commercial power supply
The electric switch is not connected to the commercial power source, and the electric switch and the connection portion are electrically connected by a second wiring.
The control device operates with the first electric power constantly supplied from the commercial power source via the first wiring.
The electric switch operates with the second power supplied from the temporary power supply via the second wiring only when the temporary power supply is connected to the connection portion.
Power supply method.

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