JP7280754B2 - shutter device - Google Patents

Description

The present invention relates to a shutter device, and in a more specific embodiment, a management and fire prevention shutter equipped with a shutter curtain that drops under its own weight when a brake is released by operating an automatic closing device or operating a manual closing device in the event of a fire. Or it relates to a manual fire shutter.

In normal times, the fire prevention shutter with management opens and closes the opening by opening and closing the shutter electrically, but in the event of a fire, a signal from the disaster prevention panel activates the automatic closing device to release the brake, and the shutter curtain stays under its own weight. It descends to close the opening. In addition, the fire shutter can also be operated from the manual closing device to release the brake and let it drop by its own weight, regardless of the fire detection signal. In order to prevent an evacuee from being caught in the falling shutter curtain, a so-called hazard prevention device is provided in the management combined fire prevention shutter.

Manual fire shutters are installed to form compartments within a building in the event of a fire to prevent the spread of fire. When the device detects a fire, the brake is released based on a signal from the disaster prevention board, and the shutter curtain is lowered by its own weight to a fully closed state to form a compartment.

In these fire shutters, for example, two types are known as the type of safety device when an obstacle is detected during the descent of its own weight.

The first type is a mechanical safety device that mechanically stops a shutter curtain falling under its own weight. When the seat plate at the lower end of the shutter curtain detects a person or an obstacle during the descent of its own weight, the operating part of the automatic closing device is mechanically moved via a transmission member such as a wire to open and close the opening and closing device. When the shutter is temporarily stopped after the shutter is temporarily stopped, the shutter curtain descends again under its own weight to close the opening. A first type of safety mechanism is described, for example, in US Pat.

The second type uses a control device (harm prevention interlock repeater). In the event of a fire, when the interlocking relay for harm prevention receives a signal from the disaster prevention panel, it sends a brake release signal to the automatic closing device (equipped with a brake release/return mechanism) to activate the automatic closing device and release the brake. While the shutter curtain is lowered by its own weight, when it receives an obstacle detection signal generated by the shutter curtain coming into contact with an obstacle (e.g., an evacuee), the automatic closing device (equipped with a brake release/return mechanism) brakes. It is configured to transmit a return signal to operate the automatic closing device, restore the brake of the opening/closing device, and stop the shutter curtain from dropping under its own weight. The harm prevention interlock repeater is equipped with a battery to output power and operate the automatic closing device even in the event of a power failure. A second type of safety mechanism is described, for example, in US Pat.

Here, for example, there is a demand to open and close the shutter in the event of a power failure, for example, in the management and fire prevention shutter installed in the truck berth section in the distribution warehouse. In the event of a power outage, it is possible to supply power using an emergency power supply for firefighting in the event of a fire, but the number of shutters that can be lifted with a single charge is limited, and the emergency power supply is stationary and cannot be moved. Therefore, it is necessary to install a plurality of devices, and since the emergency power supply itself is expensive, it is not realistic to install a plurality of emergency power supplies.

In distribution warehouses, etc., manual fire shutters may be used as partition walls in a fully closed state. I have a request to open up. In that case, in a manual fire shutter, the fully closed shutter curtain is opened by manually operating the input shaft of the opener (not equipped with a motor). Due to the large opening, it would take a considerable amount of time to manually roll up the shutter curtain. Here, it is conceivable to electrically drive the shutter curtain using an electric opener. It is not economical to lay a commercial power supply for opening about once or twice a year because it is necessary and the installation work costs a lot of money.

The inventor of the present invention conceived of electrically opening the fully closed shutter curtain by driving an electric switch using a temporary power supply different from the commercial power supply. Here, in relation to the temporary power supply, the electric switch may be in a reverse phase state. Such a temporary power source is not always electrically connected to the electric switch. When the shutter curtain is not opened by the electric switch due to the reverse phase when the temporary power supply is connected (for example, in the case of the reverse phase, In the case where a circuit for interrupting the electric current to the electric switch M is provided), the reason cannot be known and an appropriate countermeasure cannot be taken. Patent Document 3 relates to a power switching device for a switchgear, and discloses a first display device that displays the state of power supply from the first power source and a second display device that displays the state of power supply from the second power source. However, it only briefly mentions positive phase connection and negative phase connection, and does not address the above problems.
JP 2017-96072 JP 2008-031714 JP 2018-178424

SUMMARY OF THE INVENTION It is an object of the present invention to provide a shutter device that uses a temporary power supply to open a shutter curtain, and is capable of taking appropriate measures when the current supplied from the temporary power supply is of opposite phase.

The technical means adopted by the present invention are:
Left and right guide rails installed on the frame,
A shutter curtain that opens and closes the opening between the left and right guide rails,
an electric switch and
a power connection to which a temporary power source can be connected;
an electric opening operation unit;
with
Normally, the temporary power supply is not connected to the power supply connection part,
The shutter curtain can be electrically raised by electric power from the temporary power supply connected to the power supply connection section by an opening operation of the electric opening operation section,
reverse phase detection means for detecting a reverse phase when the temporary power supply is connected to the power supply connection section;
a reversed phase presenting means for presenting a reversed phase when the reversed phase detection means detects the reversed phase;
is equipped with
shutter device.
In one aspect, the negative phase detection means employs a means used for a negative phase relay or a reverse rotation prevention relay.

In one aspect, the reverse phase presenting means is reverse phase display means for displaying reverse phase.
In one aspect, the reversed-phase display means displays the reversed-phase by turning off or continuing to turn off, or by emitting light or lighting.
In one aspect, the reversed phase presenting means may be means for presenting the reversed phase by voice.

In one aspect, the reverse phase detection means is provided on a shutter control panel adjacent to the electric switch.
In one aspect, the electric switch is connected to a commercial power supply different from the temporary power supply,
The shutter device includes a power switching device for switching between a commercial power supply and a temporary power supply,
The reverse phase detecting means is provided in the power switching device.
In one aspect, the power connection part and the electric opening operation part are provided on the front surface of a common box or separate boxes,
The reverse phase detecting means is provided in one of the common box or separate boxes.

In one aspect, the reversed-phase presenting means (especially reversed-phase display means) is provided near the electric opening operation section or the power connection section. Here, "located near" refers to a range that can be visually recognized at the same time as the electric opening operation portion or the power connection portion.
In one aspect, the power connection unit and the electric opening operation unit are provided on the front surface of a common box or separate boxes, and the reverse phase presentation means (especially reverse phase display means) is provided on the front face is provided in
Incidentally, the part where the power connection part and/or the electric opening operation part are provided may be the front surface of another operation part (for example, an electric opening/closing operation part or a manual closing device).

In one aspect, the temporary power source is any one of a generator (typically a portable generator), an electrical outlet, or a battery.
In one aspect, the battery as the temporary power source may be a moving body equipped with a battery capable of supplying power for opening and closing the shutter, such as a moving trolley or an electric vehicle equipped with the battery.
In one aspect, the power connector is connected to the temporary power source via a temporary wire.
In one aspect, the electric switch and the power connection part are connected by an electric wire extending to a lower part of the main body or a lower part of the guide rail through the main body or the guide rail.
In one aspect, the electric opening operation portion and the power supply connection portion are arranged side by side horizontally or vertically or provided at positions close to each other.
In one aspect, there is a manual closing device for activating the automatic closing device, the power connection being provided near the manual closing device. A manual closing device may be provided on a common front face with the front face provided with the power opening actuation and/or the power connection.

In one aspect, the shutter device comprises:
a manual closing device;
an automatic closing device that lowers the shutter curtain by its own weight upon input of a fire detection signal or operation from the manual closing device;
an obstacle detection means for detecting an obstacle when the shutter curtain descends;
a mechanical stopping means for mechanically stopping the shutter curtain that is falling under its own weight when an obstacle is detected, without using electric power;
a control device that electrically stops the shutter curtain that is being electrically lowered when an obstacle is detected;
It has
In one aspect, the shutter device comprises:
a manual closing device;
an automatic closing device that lowers the shutter curtain by its own weight upon input of a fire detection signal or operation from the manual closing device;
an obstacle detection means for detecting an obstacle when the shutter curtain descends and generating an obstacle detection signal;
a control device that generates a brake return signal in response to an input of an obstacle detection signal to stop the falling shutter curtain;
It has

In the present invention, the obstacle detection means for detecting an obstacle when the shutter curtain is lowered and generating an obstacle detection signal may be of a wired type (for example, a cord reel method) or a wireless type (for example, a method using infrared rays or radio waves). can be of the type
In one aspect, signals (open signal, close signal, stop signal) from the electric opening/closing operation unit are input to the control device, and the control device that receives these signals is an electric opening/closing machine (including a shutter control panel). ) to electrically drive the electric switch. An open switch that generates an open signal for the electric opening/closing operation section may also serve as the electric opening operation section.
In one aspect, 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 device receiving these signals operates an automatic closing device (brake release mechanism, (provided with a brake return mechanism).
More specifically, the control device (hazard prevention interlocking relay), in the event of a fire, sends an operation signal (brake release signal) to the automatic closing device based on a signal (for example, DC24V) from the disaster prevention board based on the detection of the smoke sensor. By outputting to , the automatic closing device (brake release mechanism) is operated to release the brake of the manual opening and closing device, the shutter curtain is lowered by its own weight to prevent the spread of fire, and the obstacle is removed while the shutter curtain is lowered. When an obstacle is detected, a brake return signal is output to the automatic closing device based on a signal from the obstacle detection means, thereby activating the automatic closing device (brake return mechanism) and returning the brake of the manual opening/closing device. to stop the descent of the shutter curtain.
In one aspect, the control device includes a small-capacity battery, and is capable of outputting a signal to an automatic closing device using the power of the battery even in the event of a power failure.
In this specification, the automatic closing device may include an operating part as brake releasing/returning means, and the operating part may be provided adjacent to or integrated with the automatic closing device main body, or may be provided automatically It may be provided separately from the main body of the closing device and connected by a transmission means such as a wire.

In the present invention, when the electric switch is in the reverse phase state with respect to the power supplied from the temporary power supply, the reverse phase presenting means is the reverse phase based on the detection of the reverse phase state by the reverse phase detection means. This is presented to the operator of the shutter device (typically, the person who attempts to electrically open the fully closed shutter curtain) so that the operator can recognize that the phase is reversed. It is possible to take appropriate measures (for example, conversion from reverse phase to normal phase).

1 is a schematic front view of a management and fire prevention shutter device (first embodiment); FIG. In the figure, the solid lines connecting the elements are electric wires, and the dashed-dotted lines are wires. It is a schematic front view of the management combined fire prevention shutter apparatus (2nd Embodiment). In the figure, solid lines connecting elements are electric wires. FIG. 11 is a schematic front view of the management and fire prevention shutter device (second embodiment), showing a state in which the power switching device is in the first form and the commercial power source is selected; FIG. 10 is a schematic front view of the management and fire prevention shutter device (second embodiment), showing a state in which the power supply switching device is in the second form and the temporary power source is selected; 1 is a schematic front view of a manual fire shutter device (first embodiment); FIG. In the figure, the solid lines connecting the elements are electric wires, and the dashed-dotted lines are wires. It is a schematic front view of a manual fire shutter device (second embodiment). In the figure, solid lines connecting elements are electric wires. It is a circuit diagram (wiring is abbreviate|omitted partly) which shows the connection of an electric switch|gear and a temporary power supply. It is a circuit diagram which shows a reverse phase detection means and a reverse phase presentation means. It is a figure which shows the temporary electric wire for connecting a temporary power supply. It is a figure which shows the electric wire for conversion for converting a negative phase into a positive phase.

[A] Fire shutter combined with management [A-1] First embodiment A fire shutter with a mechanical safety device will be described with reference to FIG. In the figure, the solid lines connecting the elements are electric wires, and the dashed-dotted lines are wires. The management and fire prevention shutter according to the first embodiment is equipped with a mechanical safety device.

As shown in FIG. 1, the shutter device includes a shutter curtain 1 that opens and closes an opening formed between left and right guide rails 2, and a winding shaft that is provided above the opening and around which the shutter curtain 1 is wound. (not shown), an electric opening/closing machine M provided at a portion near one side in the opening width direction above the opening and transmission-connected to the winding shaft, an electric opening/closing operation unit 3A, and a manual closing unit. A device 3B, a control device 4 to which a signal from the electric opening/closing operation unit 3A is input, a shutter control panel 5 to which a signal from the electric opening/closing operation unit 3A is input via the control device 4, and a disaster prevention panel 6b. An automatic closing device 6 that lowers the shutter curtain 1 by its own weight in response to the input of a fire detection signal or operation from the manual closing device 3B, and obstacle detection means that detects an obstacle when the shutter curtain 1 that is lowering by its own weight hits an obstacle. , and a mechanical safety device using this obstacle detection means.

The management and fire prevention shutter is electrically driven by an electric opening/closing machine M in normal times. Specifically, when the open switch is pressed from the electric opening/closing operation section 3A, an open signal is transmitted to the shutter control panel 5 via the control device 4, and the electric opening/closing machine M is driven to raise the shutter curtain 1. When the closing switch is pressed from the electric opening/closing operation section 3A, a closing signal is transmitted to the shutter control panel 5 via the control device 4, and the electric opening/closing machine M is driven to lower the shutter curtain 1, thereby performing the electric opening/closing operation. When the stop switch is pressed from the section 3A, a stop signal is sent to the shutter control panel 5 via the control device 4, the electric opening/closing machine M is stopped, and the moving shutter curtain 1 is stopped.

The shutter curtain 1 is constructed by vertically connecting a plurality of elongated slats extending in the width direction of the opening, and a seat plate 1A is provided at the lower end. The seat plate 1A includes a long upper seat plate (not shown) extending in the width direction of the opening, and a long upper seat plate suspended below the upper seat plate so as to be vertically movable relative to the upper seat plate. The seat plate 1A is one component of the obstacle detection means.

The shutter device includes an automatic closing device 6 for lowering the shutter curtain 1 by its own weight in the event of a fire, and an operating portion 7 (brake release/reset device). In the present embodiment, the automatic closing device 6 and the actuating portion 7 are physically separated and are transmission-connected by the wire W1, but the automatic closing device 6 may have the function of the actuating portion 7.

The automatic closing device 6 is activated by the input of the fire detection signal from the disaster prevention board 6b, and releases the brake through the wire W1 and the operating portion 7. In the illustrated embodiment, the automatic closing device 6 and the actuating portion 7 are separated from each other, the automatic closing device 6 and the actuating portion 7 are mechanically connected via a wire W1, and automatically closed when a fire signal is input. By operating the device 6 and pulling the wire W1, the operating part 7 assumes the brake release posture and the brake of the electric opening/closing machine M is released. In this embodiment, the automatic closing device 6 is integrated with a recovery mechanism 6'. Such automatic closing device 6, actuating portion 7, and recovery mechanism 6' are known to those skilled in the art, and their specific configurations do not limit the configuration of the present invention, but for example, Japanese Patent Application Laid-Open No. 2017-96073 can be referred to.

When a fire breaks out in the fully open state of the opening, the fire is detected by the smoke sensor 6a, the fire detection signal from the disaster prevention board 6b activates the automatic closing device 6, and the operating part 7 is in the brake release posture via the wire W1. As a result, the brake of the electric opening/closing machine M is released. When the brake is released, the shutter curtain 1 descends under its own weight while both ends in the width direction are guided by the grooves of the guide rails 2, and the seat plate 1A lands on the floor to fully close the opening.

The shutter device is equipped with a so-called hazard prevention device, and when the seat plate 1A at the lower end of the shutter curtain 1 hits an obstacle and detects the obstacle, the brake of the electric opening/closing machine M is reset via a return wire. to stop the descent of the shutter curtain 1. The return wire is composed of a first wire W2 and a second wire W3. A relay device 10 is provided in the upper part of the opening, closer to the side where the electric opening and closing machine M is installed in the opening width direction, and the seat plate 1A has the opening width so as to be positioned below the relay device 10. A locking device 11 is provided near one side in the direction.

The first wire W2 and the second wire W3 are connected via the relay device 10. FIG. One end of the first wire W2 is connected to the operating part 7 (brake releasing body) so as to move the brake releasing body (not shown) of the operating part 7 in the brake return direction, and the other end is connected to the relay device 10. It is One end of the second wire W3 is connected to the relay device 10, and the other end is connected to the locking device 11 provided on the seat plate 1A. The second wire W3 is pulled out so as to extend along the surface portion of the shutter curtain 1 as the shutter curtain 1 descends.

The locking device 11 is provided on the upper seat plate, and the lower seat plate of the shutter curtain 1 that is being lowered hits an obstacle and moves upward relative to the upper seat plate, whereby the return wire (second wire W3) is pulled out. is mechanically restricted, and the return wire (second wire W3+first wire W2) whose pulling out is restricted pulls the brake release body in the brake return direction.

When the lower plate of the shutter curtain 1 that is falling under its own weight hits an obstacle, the return wire (second wire W3+first wire W2) moves the brake releasing body to the brake return position, and the shutter curtain 1's own weight is released. stop the descent.

When the lower plate of the shutter curtain 1 during electric descent hits an obstacle, the obstacle of the operating part 7 is interlocked with the movement of the brake releasing body by the return wire (second wire W3 + first wire W2). When the detection microswitch (not shown) turns from ON to OFF (it may be designed to detect an obstacle by turning from an OFF state to an ON state), the controller 4 detects an obstacle. A detection signal is sent and a signal is sent from the control device 4 to the shutter control panel to stop the shutter curtain 1 during the motorized lowering.

The shutter device is provided with re-lowering means (self-weight re-lowering means) for re-lowering the stopped shutter curtain 1 . When the lower plate of the shutter curtain 1, which is descending under its own weight, hits an obstacle and stops the shutter curtain 1, when the obstacle is removed, the return wire can be pulled out, and the brake release body moves in the brake release direction. Then, the shutter curtain 1 descends again under its own weight. Further, after the obstacle is removed, the timing at which the shutter curtain 1 descends again by its own weight may be delayed.

When the lower plate of the shutter curtain 1 that is being electrically lowered hits an obstacle and stops the shutter curtain 1, the obstacle is removed. The microswitch 7 is turned ON from OFF, and the shutter curtain 1 can be opened and closed electrically by the operation from the electric opening/closing operation section 3A. Although the specific configuration of such a danger prevention device (including, for example, an obstacle detection mechanism, relay device 10, lock device 11, etc.) does not limit the present invention, for example, JP-A-2017-96073 can be referred to.

A manual closing device 3B is provided on the wall near the shutter device at a height that is easy to operate. The manual closing device 3B is an operation box consisting of a vertically long rectangular parallelepiped box, and is provided with an operation portion for manual closing and an operation portion for restoring the automatic closing device 6 . The operation part for manual closing is an emergency closing switch (hidden by the lid, not shown) provided on the front face of the operation box.

The operating portion (emergency closing switch, rotating lever 3a) of the manual closing device is mechanically connected to one end of a wire W4 for manual operation so that the brake release operation and brake return operation of the operating portion 7 can be performed. . The other end of the wire W4 is connected to the operating portion 7. As shown in FIG. The operation unit of the manual closing device operates to release the brake by a first operation (pushing operation of the emergency closing switch) from the state before brake release operation, and operates to release the brake from the state after brake release operation ( The operation of the rotating lever 3a protruded by pressing the emergency close switch causes the brake to return. A pulley (not shown) for winding an automatic closing device restoration wire W5 is provided on the front part of the operation box. ', and constitutes the recovery device of the automatic closing device 6 together with the recovery mechanism 6'.

In the fire prevention shutter combined with management according to the present embodiment, power is normally supplied from the commercial power source to the electric switch M and the control device 4, but in the event of a power failure or the like, the shutter is electrically opened using a temporary power source. is possible. As shown in FIG. 1, the frame includes an electric opening operation unit (open switch 9A) adjacent to the operation box of the electric opening/closing operation unit 3A, and a power supply connection unit that can be connected to a generator G as a temporary power supply. A power supply connection device 9 is provided, which is composed of an operation box as a housing provided with a connector C1 of . In this embodiment, the electric opening operation section (open switch 9A) and the power connection section (connector C1) are vertically adjacent to each other, with the open switch 9A located on the upper side and the connector C1 located on the lower side. A front surface portion 90 of the power supply connection device 9 is provided with an LED display portion L in addition to the open switch 9A and the connector C1. The LED display section L is display means for displaying that the electric power supplied from the temporary power supply to the electric switch M is in reverse phase.

[A-2] Second Embodiment A fire shutter with a safety device will be described with reference to FIG. In the figure, solid lines connecting elements are electric wires. As shown in FIG. 2, the shutter device includes a shutter curtain 1 that opens and closes an opening formed between left and right guide rails 2, and a winding shaft that is provided above the opening and around which the shutter curtain 1 is wound. (not shown), an electric opening and closing machine M provided at a position near one side in the opening width direction above the opening and transmission-connected to the winding shaft, an electric opening and closing operation unit, and a manual closing device ( An operation box 3 equipped with an emergency operation switch 31), a control device (harm prevention interlock relay) 4, an automatic closing device 6, a smoke detector 6a, a disaster prevention board 6b, an electric switch M and a control device 4 and a utility power supply that supplies power to the

The shutter curtain 1 is constructed by vertically connecting a plurality of elongated slats extending in the width direction of the opening, and a seat plate 1A is provided at the lower end. The seat plate 1A includes a long upper seat plate (not shown) extending in the width direction of the opening, and a long upper seat plate suspended below the upper seat plate so as to be vertically movable relative to the upper seat plate. The seat plate 1A is provided with a seat plate switch, which is one component of the obstacle detection means. A seat plate 1A provided at the lowest end of the shutter curtain 1 has a seat plate switch. An object detection signal is output to the control device (harm prevention interlock repeater) 4 via the signal line 1B. The signal line 1B connected to the seat plate switch is wound in a cord reel C attached at the upper end of the opening while maintaining a biasing force in the winding direction.

The management and fire prevention shutter is electrically driven by an electric opening/closing machine M in normal times. Specifically, when the open switch is pressed from the electric opening/closing operation section of the operation box 3, an open signal is transmitted to the shutter control panel 5 via the control device 4, and the electric opening/closing machine M is driven to open the shutter curtain 1. When the close switch is pressed from the electric opening/closing operation unit, a close signal is sent to the shutter control panel 5 via the control device 4, the electric opening/closing machine M is driven, the shutter curtain 1 is lowered, and the electric When the stop switch is pressed from the opening/closing operation section, a stop signal is transmitted to the shutter control panel 5 via the control device 4, the electric opening/closing machine M is stopped, and the moving shutter curtain 1 is stopped.

When a fire breaks out with the opening fully open in the fire prevention shutter combined with management, the fire is detected by the smoke sensor 6a, and the shutter curtain 1 is closed by the operation of the automatic closing device 6 based on the fire detection signal from the disaster prevention board 6b. Both ends in the width direction are guided by the grooves of the guide rails 2 to drop under their own weight, and the lowermost seat plate 1A of the shutter curtain 1 lands on the floor to fully close the opening.

The automatic closing device 6 according to this embodiment is provided adjacent to the electric switch M, and is activated by inputting a fire detection signal from the disaster prevention board 6b or inputting a manual closing signal from the emergency operation switch 31 (manual closing device). The shutter curtain 1 is lowered by its own weight. In this embodiment, the fire detection signal and the manual closing signal are input to the control device (hazard prevention interlocking relay) 4, and the control device (hazard prevention interlocking relay) 4 A brake release signal is output to the automatic closing device 6, and the automatic closing device (brake release mechanism) 6 is operated to release the brake of the electric opening/closing machine M, causing the shutter curtain 1 to drop under its own weight.

As shown in FIG. 2, the disaster prevention board 6b, the automatic closing device 6, and the wired obstacle detection means are electrically connected to the control device (harm prevention interlocking repeater) 4, which is installed, for example, in the ceiling via a cable. properly connected. When the control device (hazard prevention interlocking relay) 4 receives a signal from the disaster prevention board 6b based on the detection of the smoke detector 6a at the time of fire, it transmits a brake release signal to the automatic closing device 6 to operate the automatic closing device (brake release mechanism) 6 is operated to release the brake of the electric opening/closing machine M, and the shutter curtain 1 is lowered by its own weight. On the other hand, when the control device (hazard prevention interlock repeater) 4 receives an obstacle detection signal generated by the shutter curtain 1 falling under its own weight coming into contact with an obstacle (for example, an evacuee), the wired obstacle detection is performed. , a brake return signal is sent to the automatic closing device 6 to operate the automatic closing device (brake return mechanism) 6, the brake of the electric opening/closing machine M is restored, and the shutter curtain 1 stops dropping under its own weight.

The operation of the automatic closing device 6 will be described. When the control device (hazard prevention interlocking relay) 4 receives the fire signal from the disaster prevention board 6b, the automatic closing device (brake release mechanism) 6 is actuated by the energization from the control device 4, and the brake part of the electric switch M. is released to lower the shutter 2 by its own weight to form a fireproof compartment. When an obstacle comes into contact with the seat plate 1A at the lower end of the shutter curtain 1 that is falling under its own weight, an obstacle detection signal is sent from the seat plate switch to the control device 4, and a command from the control device 4 that has received the obstacle detection signal. Then, the brake of the electric opening/closing machine M is restored.

When a detection signal is transmitted from the seat plate switch to the control device (harm prevention interlock relay) 4, the control device 4 that has received the detection signal transmits the automatic closing device 6 for a predetermined time, for example, about 0.5 seconds to 1 second. , DC 24V are energized (brake return signal), the brake return mechanism is operated, and the brake of the electric opening/closing machine M is returned. 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 6 after a predetermined time, for example, 10 seconds to 20 seconds, and the brake of the electric switch M is released. and the shutter curtain 1 resumes its own weight descent.

When the control device (hazard prevention interlock repeater) 4 receives an obstacle detection signal generated by the electrically lowered shutter curtain 1 coming into contact with an obstacle (e.g., an evacuee), the wired obstacle detection detects the shutter. A signal is sent to the control panel 5 to stop the driving of the electric opening/closing machine M, thereby stopping the electric lowering of the shutter curtain 1. - 特許庁

The obstacle detection means according to this embodiment is of 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 attached at the upper end of the opening. The signal line 1B is wound around the cord reel C or let out as the shutter curtain 1 moves 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 a switch 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. For example, a tape switch in the guide rail is input by a link mechanism provided at the end of the guide rail. Further, obstacle detection may be performed by a wireless method (infrared rays or radio waves).

The operation box 3 is provided on the wall near the shutter device at a height that allows easy operation. The operation box 3 has a lid, and on the front part 30 exposed by opening the lid, there are an electric opening/closing operation part and an emergency operation switch 31 that constitutes a manual closing device (can be operated without opening the lid). is provided. The manual closing device according to the present embodiment is an electric manual closing device. For example, by pressing the emergency switch 31, a non-voltage contact signal is generated and the control device 4 outputs a brake release signal. The emergency operation switch 31 is used, for example, when the shutter curtain 1 is to be immediately lowered by its own weight prior to the control operation by the input of the fire signal. A recovery button (not shown) is provided on the front portion 30 of the operation box 3. By pressing the recovery button, the control device 4 recovers from the fire mode to the normal mode.

In the control system for the management and fire prevention shutter according to the present embodiment, control is performed via the control device (harm prevention interlock repeater) 4 . The control device (hazard prevention interlock repeater) 4 has a built-in small-capacity battery (not shown) to ensure control operation during a power failure, separate from the commercial power supply at normal times. Even in an emergency such as when the commercial power supply is cut off, the battery outputs a signal based on the fire detection signal to operate the automatic closing device 6 so that the shutter curtain 1 can be lowered by its own weight. It's becoming

In the fire prevention shutter combined with management according to the present embodiment, power is normally supplied from the commercial power source to the electric switchgear M and the control device 4, but in the event of a power failure or the like, an emergency power source is used to electrically open and close the shutter. is possible. As shown in FIG. 2, the frame has an electric opening operation part (open switch 9A) adjacent to the operation box 3 that provides the electric opening/closing operation part and the manual closing device, and is connected to the generator G as a temporary power supply. A power supply connection device 9 is provided which consists of an operation box as a housing provided with a connector C1 as a possible power supply connection part. In this embodiment, the electric opening operation section (open switch 9A) and the power connection section (connector C1) are vertically adjacent to each other, with the open switch 9A located on the upper side and the connector C1 located on the lower side. A front surface portion 90 of the power supply connection device 9 is provided with an LED display portion L in addition to the open switch 9A and the connector C1. The LED display section L is display means for displaying that the electric power supplied from the temporary power supply to the electric switch M is in reverse phase.

[A-3] Use of power supply connection device and temporary power supply The shutter device normally operates on a commercial power supply, and in normal use, a portable generator or a power outlet is not connected to the connector C1. do not have. The connector C1 can be connected to a power generator G as a temporary power supply and an outlet (not shown). More specifically, the connection portion (connector C2) at the tip of the electric wire EW2 can be externally connected to the connector C1. For example, the generator G as a temporary power source is connected to the base end of the electric wire EW2 Available or pre-connected. When it becomes necessary to open and close the shutter during a power failure, for example, by preparing a generator G and connecting the connector C2 of the electric wire EW2 extending from the generator G to the connector C1, the generator G can be temporarily operated. By supplying electricity to the electric switch M as a power supply, the electric switch M can be driven, and for example, the shutter curtain 1 is raised by pressing the open switch 9A. In this embodiment, the use of the temporary power supply is not limited to power outages, and even when the commercial power supply is effective, there may be cases where it is desirable to raise the shutter curtain 1 using the temporary power supply. . Further, the open switch of the electric opening/closing operation section 3A may also be used as the open switch when the shutter curtain 1 is lifted using the temporary power source.

A commercial power source is connected to the electric switch M and the control device 4 via a circuit breaker Br, and normally operates with power supplied from the commercial power source. As shown in FIGS. 1 and 2, the fire prevention shutter combined with management according to the present embodiment includes a power switching device 8, which normally selects the commercial power source as the power source for the electric switch M, and when power failure occurs, or It is configured so that the temporary power supply can be selected as the power supply for the electric opening/closing machine M even when there is no power outage, if for some reason the temporary power supply is desired to be used.

As shown in FIGS. 3 and 4, the input from the commercial power source is branched into a first path and a second path, power is supplied to the electric switchgear M through the first path, and controlled through the second path. Power is supplied to the device 4, and a power switching unit for switching between a commercial power source and a temporary power source is provided on the first road. The commercial power supply and the power switching device 8 are connected by an electric wire EW3, the power switching device 8 and the control device 4 are connected by an electric wire EW4, and the power switching device 8 and the electric switch M are connected by an electric wire EW1''. The power switching device 8 and the power connection device 9 are connected by an electric wire EW1.

In this embodiment, the power switching device 8 includes a power switching unit (power selection switch) S, a switch S1, and a switch S2. In one aspect, when the power switching unit (power selection switch) S takes the first position, switch S1 is closed and switch S2 is open, commercial power is selected (FIG. 3), and the power switching unit ( When the power selection switch S assumes the second position, switch S1 is open and switch S2 is closed, selecting the temporary power source (FIG. 4).

When using the temporary power supply, the power supply line is an electric wire EW1 that electrically connects the power supply connection device 9 and the power switching device 8, and the power switching device 8 and the shutter control panel 5 of the electric switch M. and the electric wire EW1''. The signal line in the case of using the temporary power supply is composed of the electric wire EW1' electrically connecting the power supply connection device 9 and the shutter control panel 5 of the electric opening/closing machine M. FIG.

In one aspect, for example, the electric wire EW1 passes through the side wall of the guide rail 2 and extends to the operation box of the power supply connection device 9 embedded in the lower portion of the wall. A power connection device 9 is electrically connected to the . Similarly, an electric wire EW1', which is a signal line, extends through the wall. The operation box of the power supply connection device 9 is provided with a lid (not shown). By opening the lid, the front face portion 90 and the open switch 9A and the connector C1 provided on the front face portion 90 are exposed.

In the above example, the electric wire EW1 for supplying electric power to the electric switch M and the electric wire EW1′ for supplying signals are provided so as to pass through the wall. may Alternatively, the electric wires EW1 and EW1' may be guided through the guide rail 2 to below the opening. More specifically, the electric wire passes through the guide rail 2 or extends along the outer surface of the guide rail 2 to the lower portion of the guide rail 2, and the connector C1 is connected to the end of the electric wire EW1 at the lower portion. A power connection device 9 with a is electrically provided. The connector C1 may be provided on the outer surface of the guide rail 2 so as to be exposed, or if the guide rail 2 is provided with a power connection device, the connector C1 may be provided on the front surface of the power connection device so as to be exposed to the outside. . Alternatively, the electric wire EW1 may be routed through the wall or guide rail 2, or along the outer surface of the wall or the guide rail 2, at the lower portion of the guide rail 2 or the lower portion of the wall (floor or inside the floor). ), and can be connected from the outside on a wall or floor independent of the operation box of the power supply connection device (provided with an open switch 9A) and the guide rail 2. A connector C1 may be provided as a power supply connection section, and in this case, the open switch 9A of the power supply connection device and the power supply connection section (connector C1) are arranged at physically separated locations.

[B] Fire Shutter with Hazard Prevention [B-1] First Embodiment A fire prevention shutter with a mechanical safety device will be described with reference to FIG. In the figure, the solid lines connecting the elements are electric wires, and the dashed-dotted lines are wires. As shown in FIG. 5, the shutter device includes a shutter curtain 1 that opens and closes an opening formed between left and right guide rails 2, and a winding shaft that is provided above the opening and around which the shutter curtain 1 is wound. (not shown), an electric opening and closing machine M provided at a portion near one side in the opening width direction above the opening and transmission-connected to the winding shaft, a manual closing device 3B, and a disaster prevention board 6b. An automatic closing device 6 that lowers the shutter curtain 1 by its own weight by inputting a fire detection signal from or operation from a manual closing device 3B, and an obstacle detector that detects an obstacle when the shutter curtain 1 that is lowering by its own weight hits an obstacle. and a mechanical safety device using the obstacle detection means. In the fire shutter with a mechanical safety device shown in FIG. 5, the electric opening/closing machine M is not connected to the commercial power supply.

The specific configuration of the shutter curtain 1, the specific configuration of the obstacle detection means and the mechanical safety device, the specific configuration of the manual closing device 3B, the operation of the automatic closing device 6, etc. It is the same as the first embodiment (FIG. 1), and in FIG. 5 and FIG. 1, the same components are denoted by the same reference numerals, and the above description based on FIG. 1 can be used. .

[B-2] Second Embodiment A fire shutter with a safety device will be described with reference to FIG. In the figure, solid lines connecting elements are electric wires. The shutter device includes a shutter curtain 1 for opening and closing an opening formed between left and right guide rails 2, a winding shaft (not shown) provided above the opening and on which the shutter curtain 1 is wound, Above the opening, a manual opening and closing device M1, which is provided at a position near one side in the opening width direction and is transmission-connected to the winding shaft, a manual closing device 3' (emergency operation switch 31), and a control device ( It is equipped with a safety interlock relay 4, an automatic closing device 5, a fire sensor 6a, a disaster prevention board 6b, and a commercial power supply for supplying power to the control device 4. In the fire shutter with a mechanical safety device shown in FIG. 6, the electric opening/closing machine M is not connected to the commercial power supply.

Regarding the specific configuration of the shutter curtain 1, the specific configuration of the obstacle detection means and control device (harm prevention interlock relay) 4, the specific configuration of the emergency switch 31, the operation of the automatic closing device 6, etc., It is the same as the second embodiment of the management combined fire prevention shutter (FIG. 2), and in FIGS. can be used.

[B-3] Temporary Power Supply and Opening of Shutter Using Electric Switch The shutter device shown in FIGS. It does not contain a battery that powers it and is not connected to any utility power source. In this embodiment, the primary side of the circuit breaker Br to which the electric wire EW1″ extending from the shutter control panel 5 of the electric switch M is connected is not connected to the commercial power supply, but is connected to the electric wire EW1. , the electric wire EW1 extends to a lower portion through a wall (framework), and a connector C1 as a power supply connecting portion is provided at the end of the electric wire EW1. A temporary power source can be connected to the connector C1. The connector C1 can be externally connected to a power connection portion at the tip of the electric wire EW2, and a temporary power source is connected to the base end of the electric wire EW2.

In one aspect, the shutter device shown in FIGS. 5 and 6 is normally used with the shutter fully closed, and the connector C1 is not connected to the portable generator or the power outlet in the normal use state. not When it becomes necessary to open the shutter for reasons such as maintenance, a generator G is prepared and the connector C2 of the electric wire EW2 extending from the generator G is connected to the connector C1, thereby turning the generator G into a temporary power source. By supplying electricity to the electric switch M, the electric switch M can be driven, and the shutter curtain 1 is lifted by pressing the open switch 9A.

In the present embodiment shown in FIGS. 5 and 6, the shutter device (electric opening/closing machine M) is not connected to a commercial power source, and a temporary power source can be easily connected only when the shutter is opened. Electric wiring that connects the commercial power supply and the electric switch is not required to use the power supply, and the cost of laying the power supply can be reduced. In this embodiment, if there is a generator or a power outlet, the shutter device (not connected to the commercial power supply and not equipped with a battery), which is normally used in a fully closed state, can be electrically opened. It is also possible to electrically open a plurality of shutter devices using one portable generator. In addition, since the shutter device shown in FIG. is not necessary), an obstacle can be detected when the shutter curtain 1 is lowered by its own weight, and the obstacle can be lowered again after the obstacle is removed. In the shutter device shown in FIG. 6, control during the fall of the shutter curtain 1 by its own weight is performed via the control device (harm prevention interlock relay) 4. The control device (harm prevention interlock relay) 4 includes: A small-capacity battery (not shown) is built-in to ensure control operation during a power failure in addition to the commercial power supply during normal times. However, the battery can output a signal based on the fire detection signal to operate the automatic closing device 6 to allow the shutter curtain 1 to drop under its own weight, detect an obstacle, and lower again after removing the obstacle.

[C] Temporary power supply [C-1] Overview of temporary power supply When the shutter device is in use, it is not connected to the power connection portion (connector C1), but is temporarily connected to the power connection portion (connector C1) when the shutter needs to be electrically opened.

In this embodiment, a portable power generator G is prepared as a temporary power source, and an electric wire EW2 having a connector C2 that can be connected to the connector C1 is provided on the output side of the power generator G. A generator G can be connected to the connector C1 exposed at the portion 90. As shown in FIG. The generator G is, for example, a movable generator G provided with running rollers, and is normally stored in place.

Thus, by providing the connector C1 to which the generator G as a temporary power supply can be connected from the outside in the operation box having the open switch 9A as the electric opening operation section, power generation can be performed at the same location as the shutter open switch 9A. The connection of the generator G can be performed, and the connection of the generator G and the operation from the open switch 9A can be performed smoothly.

As shown in FIG. 7, in place of the generator G, a power outlet P exposed on the wall or a battery device is used as a temporary power source, and a temporary electric wire EW2' is used to connect the power outlet P and the connector at the end of the electric wire EW1 ( power connection) C1 may be connected. In one aspect, the temporary wire EW2' consists of a first portion EW20 and a second portion EW21, the second portion EW21 being a cord reel (electrical drum). As shown in FIG. 9, at one end in the length direction of the first portion EW20 is provided a first connection portion C2 connectable to an outlet (power supply connection portion) C1, and at the other end is provided a second connection portion C3. It is The second connection portion C3 of the first portion EW20 is connectable to the body of the cord reel forming the second portion EW21, and the tip of the cord extending from the cord reel body is connected to the power outlet P. Although the temporary electric wire EW2' is composed of the first portion EW20 and the second portion EW21 in this embodiment, it may be composed of a single electric wire. Further, the first portion EW20 may be composed of one member, or may be composed of a plurality of members connected to each other. When the power outlet P is used as a temporary power source, if necessary (for example, when the switch operates at 200 V and the voltage of the power outlet P is not 200 V), a transformer is provided as appropriate and the voltage is to convert

In this embodiment, the temporary power source that supplies power for driving the electric switch M is a portable generator connectable to the connector C1, a power outlet, or a battery (for example, a battery mounted on a mobile cart). However, these temporary power sources are not normally connected to the connector C1, that is, these temporary power sources and the electric switchgear M are not connected.

The shutter device is not connected to the portable power generator or the power outlet to the connector C1 in normal use. When it becomes necessary to open and close the shutter during a power outage, etc., a generator G is prepared and the connector C2 of the electric wire EW2 extending from the generator G is connected to the connector C1, so that the generator G can be used as a temporary power source. By supplying electricity to the electric opener M, the electric opener M can be driven, and for example, the shutter curtain 1 is lifted by pressing the open switch 9A.

In one mode, the shutter curtain 1 is lifted by fully pressing the open switch 9A (the shutter curtain 1 is lifted only while the open switch 9A is being pushed). Alternatively, a self-holding circuit may be used instead of the push-off operation, and the stop operation may be performed according to the pressing pattern of the open switch 9A. The second pressing may stop the rising shutter curtain 1 . Alternatively, a stop switch may be provided in addition to the open switch 9A.

[C-2] Detection and Presentation of Reversed Phase As described above, in this embodiment, the shutter curtain 1 in the fully closed state is electrically opened by driving the electric opening/closing machine M using a temporary power supply. However, in relation to the three-phase power supplied from the temporary power supply, the electric switch M may be in a state of reversed phase (especially when the outlet power supply is used as the temporary power supply). The reverse phase is a state in which the phase rotation of the three-phase AC circuit is reversed, and the electric switch M (having a three-phase induction motor) rotates in the reverse direction. In order to prevent the reverse rotation of the motor due to the reverse phase, conventionally, a reverse phase relay or a reverse rotation prevention relay is provided to prevent the motor from starting in the reverse phase state.

Such a temporary power source is not always electrically connected to the electric switch M, and the connection between the temporary power source and the electric switch M can be made at the site by the user of the shutter device (normally, when the need arises). When the shutter curtain 1 is not opened by the electric opening/closing machine M due to the reverse phase when the temporary power source is connected (for example, when the shutter curtain 1 is not opened by the reverse phase In the case of (1), a circuit for interrupting the current to the electric switch M is provided), the reason cannot be known, and appropriate countermeasures cannot be taken.

The shutter device according to the present embodiment includes a reverse phase detecting means for detecting a reverse phase when the temporary power supply is connected to the power supply connection portion (connector C1), and a reverse phase when the reverse phase detection means detects the reverse phase. and a reversed-phase presenting means for presenting the . The reverse phase detection means detects that the electric power supplied from the temporary power supply is in the reverse phase state with respect to the electric switch M. In the case of the reversed phase state, the operator of the shutter device (typically, in the fully closed (A person who intends to electrically open the shutter curtain 1).

The negative phase detection means determines whether the power supplied from the temporary power supply to the electric switch M is in positive phase or negative phase. can do. The reverse phase detection means can be provided in the power supply path from the temporary power supply to the electric switch M. In one aspect, it is provided in the shutter control panel 5 (circuit constituting the control panel) adjacent to the electric switch M. (See FIG. 7). Also, the reverse phase detection means may be provided in the power supply connection device 9 . More specifically, it is positioned inside the box of the power supply connection device 9 and connected to the electric wire EW1. Alternatively, if the shutter device has a power switching device for switching between commercial power and temporary power, the reverse phase detecting means may be provided in the power switching device 8 . More specifically, in a circuit forming the power switching device 8, it is connected to the electric wire EW1 to the electric wire EW1''.

In this embodiment, when the temporary power supply is connected, in the case of reverse phase, power is supplied to the electric switch M to prevent the electric switch M from starting, and the reverse phase is detected by the shutter device. Present to the operator. The reversed phase presenting means for presenting the reversed phase is typically a means for displaying the reversed phase, for example, the reversed phase is turned off It is also possible to present the reversed phase by light emission or lighting. In one aspect, an LED display portion L is provided on the front portion 90 of the operation box of the power supply connection device 9, and when the reverse phase detection means detects the reverse phase, the LED display portion L is extinguished or emits light. (including blinking). In this embodiment, when the phase is positive, the relay switch S3 is closed and current is supplied to the circuit including the LED display unit L so that the LED display unit L emits light (the electric switch M also When the phase is reversed, the relay switch S3 is kept open or open, and the LED display section L is turned off or continues to be turned off (FIGS. 7 and 8). It should be noted that a circuit including the LED display section L may be closed and the LED display section L may emit light by electric power from the temporary power source when the reverse phase is detected.

The reverse phase presentation means may include audio output means in addition to or instead of the light emission means. For example, a warning sound (the type of sound is not limited) may be generated when the reverse phase detection means detects the reverse phase.

In the present embodiment, when the electric switch M is in the reverse phase state with respect to the power supplied from the temporary power supply, the reverse phase presentation means detects the reverse phase state based on the reverse phase detection means. is presented to the operator of the shutter device (typically, the person who attempts to electrically open the fully closed shutter curtain), and the operator recognizes that the phase is reversed. It is possible to take appropriate measures (conversion from negative phase to positive phase).

[C-2] Conversion from negative phase to normal phase This embodiment includes reverse phase conversion means for converting to positive phase when the temporary power supply connected to the connector (power supply connection part) C1 is reverse phase. . In this embodiment, the reverse phase conversion means is a conversion wire EW22 provided in a temporary wire EW2' that electrically connects the connector (power supply connection portion) C1 and a temporary power supply (for example, a power outlet P). In this embodiment, although not limited, the length of the conversion electric wire EW22 is shorter than the length of the first portion EW20 of the temporary electric wire EW2'.

As described above, in the embodiment shown in FIG. 7, the temporary electric wire EW2' consists of the first portion EW20 and the second portion EW21. As shown in FIG. 9, the first portion EW20 has a first connection portion C2 that can be connected to an outlet (power supply connection portion) C1 at one end in the length direction, and a second connection portion C3 at the other end. The second connecting portion C3 of the first portion EW20 is connected to the body of the cord reel forming the second portion EW21 to form the temporary electric wire EW2'. Table 1 shows the wiring of the first portion EW21 of the temporary electric wire EW2'.

As shown in FIG. 10, the conversion electric wire EW22 has a first connection portion C4 at one end in the length direction and a second connection portion C3' at the other end. Table 2 shows the wiring of the conversion electric wire EW22.

In this embodiment, the conversion electric wire (reverse phase conversion means) EW22 is provided in the first portion EW20 of the temporary electric wire EW2'. When converting the reverse phase to the positive phase, the second connection portion C3 of the first portion EW20 of the temporary electric wire EW2′ is connected to the first connection portion C4 of the conversion electric wire EW22, and the second connection of the conversion electric wire EW22 is performed. The portion C3' is connected to the main body of the cord reel forming the second portion EW21 of the temporary wire EW2'. By providing the conversion electric wire EW22 between the first portion EW20 and the second portion EW21 of the temporary electric wire EW2', a first portion EW20' (see FIG. 7) that converts from the reverse phase to the positive phase is obtained.

In this embodiment, by preparing the conversion electric wire EW22, the reverse phase is detected by the reverse phase detection means, and when the reverse phase state is presented, the first portion EW20 of the temporary electric wire EW2′ is The second connection portion C3 is removed from the main body of the cord reel constituting the second portion EW21, the first connection portion C4 of the conversion electric wire EW22 is connected to the second connection portion C3, and the conversion electric wire EW22 is second connected. By connecting the second connecting portion C3 of the temporary wire EW2' to the main body of the cord reel constituting the second portion EW21, the reverse phase can be converted to the positive phase. In this embodiment, it can be confirmed by lighting of the LED display section L that the reverse phase has been converted to the positive phase.

In this embodiment, the conversion electric wire EW22 is added to the existing temporary electric wire EW2′ to convert the negative phase to the positive phase. , the first portion EW20 of the existing temporary electric wire EW2' may be replaced with the first portion for reverse phase conversion.

In the present embodiment, the reverse phase conversion means (conversion wire EW22) is provided on the temporary wire EW2′ to convert the reverse phase to the positive phase. Well, for example, the reverse phase conversion means may be provided in the power supply connection device 9 . In a more specific example, the reverse phase conversion means is composed of a reverse phase conversion unit and a conversion operation unit (not shown), and the reverse phase conversion means is switchably connected to the electric wire EW1 located in the operation box of the power supply connection device 9. A conversion unit is provided, a conversion operation unit (button or lever) is provided on the front part 90 of the power supply connection device 9, and the current supplied from the temporary power supply is switched to pass through the reverse phase conversion unit by switching operation of the conversion operation unit. Thus, the reverse phase may be converted into the positive phase in the reverse phase conversion unit.

1 shutter curtain 2 guide rail 3A electric opening/closing operation unit 31 emergency operation switch (manual closing device)
4 control device 6 automatic closing device 8 power supply switching device 9 power supply connection device 9A open switch (electric opening operation unit)
M Electric switchgear G Generator (temporary power source)
C1 power connection (connector)
C2 connection part (connector)
EW1 Electric wire (power supply wire)
EW1' electric wire (signal wire)
EW1'' Electric wire (power supply wire)
EW2' Temporary electric wire EW20 Temporary electric wire first portion EW21 Temporary electric wire second portion EW22 Conversion electric wire LED display portion L
P Power outlet S3 Relay switch

Claims (6)

Left and right guide rails installed on the frame,
A shutter curtain that opens and closes the opening between the left and right guide rails,
an electric switch and
a power connection to which a temporary power source can be connected;
an electric opening operation unit;
with
Normally, the temporary power supply is not connected to the power supply connection part,
The shutter curtain can be electrically raised by electric power from the temporary power supply connected to the power supply connection section by an opening operation of the electric opening operation section,
A reverse phase detection provided in a power supply path from a temporary power supply to an electric switch, and detects the presence or absence of a reverse phase based on the power supplied from the temporary power supply when the temporary power supply is connected to the power supply connection unit. means and
a reverse phase presentation means provided near the electric opening operation unit or the power supply connection unit and presenting a reverse phase when the reverse phase detection means detects the reverse phase;
is equipped with
shutter device. 2. The shutter device according to claim 1, wherein said reverse phase presenting means is reverse phase display means for displaying reverse phase. 3. The shutter device according to claim 1, wherein said reverse phase detecting means is provided on a shutter control panel adjacent to said electric opening/closing machine. A commercial power supply different from the temporary power supply is connected to the electric switch,
The shutter device includes a power switching device for switching between a commercial power supply and a temporary power supply,
3. The shutter device according to claim 1, wherein said reverse phase detecting means is provided in said power switching device. The power connection part and the electric opening operation part are provided on the front surface of a common box or separate boxes,
The reverse phase detection means is provided in one of the common box or separate boxes,
The shutter device according to claim 1 or 2. The temporary power supply is any one of a generator, a power outlet, and a battery,
The shutter device according to any one of claims 1-5 .

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