Opening / closing device structure

Abstract

To maintain an open state for an indoor-side opening / closing device.SOLUTION: An opening / closing device structure comprises: an outdoor-side opening / closing device 1 that performs opening / closing operations on an outdoor side of an entry path leading from the outdoors to the indoors; an indoor-side opening / closing device 2 that performs opening / closing operations on an indoor side of the same entry path relative to the outdoor-side opening / closing device 1; and a water pressure switch 36 that actuates when subjected to water pressure on an outdoor side relative to the outdoor-side opening / closing device 1. The opening / closing device structure is configured such that the fully closed outdoor-side opening / closing device 1 is opened by actuation of the water pressure switch 36. The indoor-side opening / closing device 2 has a function of opening on the condition that the outdoor-side opening / closing device 1 is closed, and a function of automatically closing from an open state when no passing object is present. When the outdoor-side opening / closing device 1 is opened by actuation of the water pressure switch 36, the automatic closing of the indoor-side opening / closing device 2 is disabled.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a switching device structure in which an outdoor switching device and an indoor switching device are arranged side by side with respect to an opening. [Background technology]

[0002] Conventional opening and closing devices include a fire shutter device that, when a disaster prevention signal is received, releases a brake device that holds the opening and closing body in a fully open position, causing the metal opening and closing body to close under its own weight, thereby preventing the spread of smoke and flames, as described in Patent Document 1. In this fire shutter device, the opening and closing body opens when a water pressure switch is operated by a fire brigade or other such entity to spray water. Another type of opening and closing device is a sheet shutter device, as described in Patent Document 2, which has a relatively lightweight sheet-like opening and closing body that is kept in a closed state and opens and closes at high speed as pedestrians pass by. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-79457 [Patent Document 2] Japanese Patent Application Publication No. 2018-066188 Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned fire shutter device and sheet shutter device may be installed side by side at an opening in a building. That is, the fire shutter device is installed on the outdoor side of the opening, and the sheet shutter device is installed on the indoor side of the opening. The fire shutter device is configured to automatically close in response to a disaster prevention signal from outside. On the other hand, the sheet shutter device is configured to open when it detects an object attempting to pass (hereinafter referred to as a passing object), and to automatically close after a predetermined time has passed since it no longer detects the passing object. In such an opening and closing device structure, even if the fire shutter device is opened by the water pressure switch, if the sheet shutter device is closed by the automatic closing function, it may take a long time for the fire brigade to enter the building, which may hinder firefighting activities. [Means for solving the problem]

[0005] In view of the above problems, one aspect of the present invention is provided with the following configuration. An opening and closing device structure comprising an outdoor opening and closing device that operates to open and close on the outdoor side of an access route from the outdoors to the indoors, an indoor opening and closing device that operates to open and close on the indoor side of the outdoor opening and closing device on the same access route, and a water pressure switch that operates when water pressure is received on the outdoor side of the outdoor opening and closing device, wherein the outdoor opening and closing device is in a fully closed state and is opened by operation of the water pressure switch, and the indoor opening and closing device has a function to open on the condition that the outdoor opening and closing device is closed, and a function to automatically close from an open state when there is no object passing through, and wherein when the outdoor opening and closing device is opened by operation of the water pressure switch, the automatic closing of the indoor opening and closing device is disabled. [Effects of the Invention]

[0006] Since the present invention is configured as described above, when the outdoor opening / closing device is opened by the operation of the water pressure switch, the indoor opening / closing device can be maintained in an open state. [Brief explanation of the drawings]

[0007] [Figure 1]1A and 1B are side views showing a schematic view of the opening and closing device structure according to the present invention, in which (a) shows the state in which the outdoor opening and closing body is fully open and the indoor opening and closing body is fully closed, (b) shows the state in which the indoor opening and closing body is fully opened when the outdoor opening and closing body is fully closed, and (c) shows the state in which the indoor opening and closing body is maintained in a fully open state when the outdoor opening and closing body is opened. [Figure 2] FIG. 2 is a front view showing an example of an outdoor opening / closing device. [Figure 3] FIG. 2 is a block diagram showing an example of a control circuit configuration of an outdoor switchgear. [Figure 4] FIG. 2 is a front view showing an example of an indoor opening and closing device. [Figure 5] 10 is a flowchart showing an example of the operation of a control circuit of the outdoor opening / closing device. [Figure 6] 4 is a flowchart showing an example of the operation of a control circuit of an indoor opening / closing device. [Figure 7] 10 is a flowchart showing an example of operation of a control circuit of an indoor opening / closing device when switching between an automatic opening / closing mode and a manual opening / closing mode. DETAILED DESCRIPTION OF THE INVENTION

[0008] Next, an embodiment of the present invention will be described in detail with reference to the drawings. The opening and closing device structure of this embodiment opens and closes an opening A facing the outdoors in a body X such as a house, a building, a warehouse, a factory, an underground mall, a tunnel, or a vehicle loading platform.

[0009] This opening / closing device structure comprises an outdoor opening / closing device 1 that opens and closes on the outdoor side of the access route from outdoors to indoors, an indoor opening / closing device 2 that opens and closes close to the indoor side of the outdoor opening / closing device 1, and a water pressure switch 36 that outputs an activation signal when water pressure is received on the outdoor side of the outdoor opening / closing device 1, and is configured so that the outdoor opening / closing device 1, which is in a fully closed state, is opened by the activation signal (see Figure 1).

[0010] <About outdoor switchgear 1> The outdoor opening / closing device 1 comprises an outdoor opening / closing body 10a that opens and closes in the vertical direction, a guide rail 20a that surrounds the widthwise end of the outdoor opening / closing body 10a in a concave cross section and guides it in the opening and closing direction, a storage section 30a that stores and extends the outdoor opening / closing body 10a above it, a hand-operated operating section 35a for manually opening and closing the outdoor opening / closing body 10a, and an outdoor control circuit 40a that controls the opening and closing operation of the outdoor opening / closing body 10a in response to various input signals.

[0011] The outdoor opening / closing body 10a is made up of a plurality of slats, each made by bending a horizontally elongated, approximately rectangular metal plate, connected together so that they can rotate vertically. An obstacle detection device 12a is connected to the lower end of this opening / closing body main body 11a, and detects obstacles below using a movable seat plate or the like.

[0012] In addition, the guide rail 20a is a member with a concave cross section that surrounds the widthwise end of the outdoor opening / closing body 10a and continues in the vertical direction, and is provided in a long shape that extends between the lower immovable surface P (e.g., the floor surface, the ground, the lower frame, etc.) and the storage section 30a.

[0013] The storage section 30a is provided within a case 31 with a winding shaft 32a that winds up and unwinds the outdoor opening / closing body 10a, an opening / closing machine 33a that drives and rotates or brakes the winding shaft 32a via a power transmission means such as a chain and sprocket, an automatic closing device 34 that causes the outdoor opening / closing body 10a to descend under its own weight (close operation), and an opening / closing machine control panel 41a and an obstacle detection device control panel 41b that form part of the outdoor control circuit 40a described later.

[0014] The winding shaft 32a is configured in a freely rotatable, generally columnar or cylindrical shape, and the upper end side of the outdoor opening / closing body 10a is fastened to its outer circumferential surface, thereby winding up and unwinding the outdoor opening / closing body 10a.

[0015] The opening / closing machine 33a integrally comprises a drive source (e.g., an electric motor) for rotating the winding shaft 32a, a brake mechanism (not shown) for braking the rotation caused by this drive source, and an opening / closing position detection device (not shown) for detecting the opening / closing position of the outdoor opening / closing body 10a.

[0016] The open / close position detection device provided in the open / close mechanism 33a may be configured to detect at least the fully closed state of the outdoor open / close body 10a and output a signal, and may be configured to use, for example, a known counter-type limit switch that mechanically detects the amount of rotation of the rotating part of the open / close mechanism 33a and outputs a contact signal, or an encoder, etc.

[0017] When the automatic closing device 34 receives power (e.g., DC 24V) supplied from the harm prevention interlocking relay 41d, it mechanically operates the opening / closing mechanism 33a to put it in a free state where it can rotate freely, and releases this free state with an automatic closing stop signal (e.g., a contactless signal) from the obstacle detection device control panel 41b.

[0018] In other words, when a disaster prevention signal is received from outside while the outdoor opening / closing body 10a is fully open, the harm prevention interlocking relay 41d supplies power to the automatic closing device 34, and the automatic closing device 34 is activated, causing the outdoor opening / closing body 10a to descend under its own weight (closing operation). During this descent under its own weight, if the obstacle detection device 12a at the lower end of the outdoor opening / closing body 10a detects an obstacle below the outdoor opening / closing body 10a, an automatic closing stop signal is sent from the obstacle detection device control panel 41b to the automatic closing device 34, and the descent of the outdoor opening / closing body 10a under its own weight is stopped.

[0019] The opening / closing mechanism 33a and the automatic closing device 34 may be those described in Patent Document 1, for example.

[0020] The hand-operated operating unit 35a is equipped with a plurality of switches including an open switch, a close switch, and a stop switch, and these switches enable operations such as opening, closing, and stopping the outdoor opening / closing body 10a, operating the automatic closing device 34 to cause the outdoor opening / closing body 10a to descend under its own weight, restoring the automatic closing device 34 to its initial state so as to stop the descent under its own weight, and canceling (stopping) the output of the report signal by the emergency power supply device 41c.

[0021] The water pressure switch 36 is a well-known water pressure switch that is activated by the water pressure of water supplied (injected) into the water supply port. The range of water pressure that activates the water pressure switch 36 is appropriately set taking into account the water discharge capacity of the fire brigade.

[0022] As shown in the block diagram of Fig. 3, the outdoor control circuit 40a is made up of multiple electric circuits, such as a switch control panel 41a that controls the operation of the switch 33a, an obstacle detection device control panel 41b that processes signals from the obstacle detection device 12a etc., an emergency power supply device 41c that controls the power supply in an emergency, and a harm prevention interlocking relay 41d that controls the power supply to the automatic closing device 34. Each of the electric circuits may be made up of a microcomputer circuit, a relay circuit, a sequencer or the like. This outdoor control circuit 40a appropriately processes the obstacle sensor 12a, the water pressure switch 36, the handheld operation unit 35a, disaster prevention signals from the outside, and the like, and controls the opening / closing device 33a, the automatic closing device 34, and the like.

[0023] The plurality of electric circuits constituting the outdoor control circuit 40a do not have to be separate circuits as in the illustrated example, but some or all of them can be integrated into an integrated circuit.

[0024] <About indoor switchgear 2> The indoor opening / closing device 2 comprises an indoor opening / closing body 10b that opens and closes in the vertical direction, a guide rail 20b that surrounds the widthwise end of the indoor opening / closing body 10b in a concave cross section and guides it in the opening and closing direction, a storage section 30b that stores and extends the indoor opening / closing body 10b above it, a hand-operated operation section 35b for manually opening and closing the indoor opening / closing body 10b, and an indoor control circuit 40b that controls the opening and closing operation of the indoor opening / closing body 10b in response to various input signals, and forms a sheet shutter device that opens and closes the indoor opening / closing body 10b at high speed.

[0025] The indoor opening / closing body 10b integrally comprises a sheet-like opening / closing body main body 11b and an obstacle detection device 12b connected to the lower end side of the opening / closing body main body 11b.

[0026] The opening / closing body main body 11b is formed in a rectangular shape with a width sufficient to cover almost the entire opening portion opened and closed by the indoor opening / closing device 2. This opening / closing body main body 11b may be formed from a single flexible sheet, or may be formed by connecting multiple flexible sheets in the opening / closing direction and / or the width direction. The flexible sheet may be a sheet material such as a synthetic resin sheet, glass cloth, or silica cloth.

[0027] The obstacle sensor 12b is configured to transmit a signal when the lower end of the indoor opening / closing body 10b comes into contact with an obstacle below. This obstacle detection device 12b may be configured, for example, by forming the lower end side of the opening / closing body main body 11b into a bag-like cross section, and providing a tape switch across the width of the opening / closing body inside this bag-like portion.

[0028] The storage section 30b is provided with, within a case 31', a winding shaft 32b that winds up and unwinds the indoor side opening / closing body 10b, an opening / closing mechanism 33b that drives and rotates and brakes the winding shaft 32b via a power transmission means such as a chain and sprocket, and an indoor side control circuit 40b.

[0029] The case 31' may be a case common to the case 31 of the outdoor opening / closing device 1, as shown in FIG.

[0030] The winding shaft 32b is configured in a freely rotatable, approximately columnar or cylindrical shape, and the upper end side of the indoor side opening / closing body 10b is fixed to its outer circumferential surface, thereby winding and unwinding the indoor side opening / closing body 10b at a relatively high speed.

[0031] The winding shaft 32b illustrated in FIG. 1 is a single-shaft configuration, but another example of this winding shaft 32b is a two-shaft configuration in which two approximately parallel shafts are used to wind and unwind the indoor opening / closing body 10b at high speed, as in Patent Document 2.

[0032] The opening / closing device 33b is configured to rotate the winding shaft 32b in both directions by an electric motor. The opening / closing device 33b is integrally provided with an opening / closing position detection device (not shown) that detects the opening / closing position of the indoor opening / closing body 10b. The open / close position detection device may be configured to detect at least the fully open state of the indoor opening / closing body 10b and output a signal, and may be configured using the counter-type limit switch, encoder, etc., as with the outdoor opening / closing device 1.

[0033] The indoor control circuit 40b is an electric circuit configured with, for example, a microcomputer circuit, a relay circuit, or a sequencer, and controls the opening / closing device 33b appropriately in response to various input signals.

[0034] This indoor control circuit 40b has the function of controlling the opening and closing operation of the indoor opening and closing body 10b depending on whether or not an object is passing through (automatic opening and closing mode), and the function of controlling the opening and closing operation of the indoor opening and closing body 10b by manual operation of the hand-operated operating unit 35b (manual opening and closing mode). The indoor control circuit 40b is configured to switch between an automatic opening / closing mode and a manual opening / closing mode by operating a mode changeover switch provided on the hand operation unit 35b (see FIG. 7).

[0035] In the automatic opening / closing mode, when an object (e.g., a person, a vehicle, etc.) that is attempting to pass through by opening the indoor opening / closing body 10b is detected by a passing object detection sensor (not shown), the indoor side control circuit 40b opens the indoor side opening / closing body 10b from the fully closed position to the fully open position, and automatically closes this indoor side opening / closing body 10b from the open state if no object is passing through. To explain the automatic closing in more detail, the indoor control circuit 40b closes the indoor opening / closing body 10b from the fully open position to the fully closed position when a predetermined time has elapsed after the passing object detection sensor no longer detects any passing object below the indoor opening / closing body 10b.

[0036] In the manual opening / closing mode, the indoor control circuit 40b opens, closes or stops the indoor opening / closing body 10b in response to the operation of the open switch, close switch or stop switch provided on the hand operation unit 35b.

[0037] Furthermore, the outdoor control circuit 40a has a function of opening the indoor opening / closing unit 10b when the outdoor opening / closing unit 10a is closed by a disaster prevention signal or the like (see FIGS. 1(a) to 1(c)). This function will be described in detail below with reference to the flowcharts shown in FIGS. 5 and 6.

[0038] <Control circuit flow of outdoor switchgear> In step S1, the outdoor control circuit 40a outputs an outdoor closed state signal to the indoor control circuit 40b, and the process proceeds to the next step. Here, the outdoor-side closed state signal is a signal that indicates the open / closed state of the outdoor-side opening / closing body 10a, and more specifically, is a signal that turns ON when the outdoor-side opening / closing body 10a is fully closed and stopped, and turns OFF in other cases. For example, if step S2 is executed immediately after the outdoor opening / closing body 10a is fully closed, an ON signal is output as the outdoor closed state signal.

[0039] This outdoor-side closed state signal may be an a-contact signal such as a relay that operates when the outdoor-side opening / closing body 10a is fully closed, and in the example shown in Fig. 3, a signal output by the opening / closing device control panel 41a is used. Note that other examples of this outdoor-side closed state signal may include a signal from a limit switch provided in the automatic closing device 34, or a signal output from another control circuit.

[0040] In the next step S2, it is determined based on the outdoor closed state signal whether the outdoor opening / closing body 10a is in a fully closed state. If it is in a fully closed state, the process proceeds to the next step S3; if not, the process returns to step S1. For example, when the outdoor opening / closing body 10a is fully closed in response to a disaster prevention signal, the outdoor closed state signal is turned ON, and the process proceeds to the next step S3.

[0041] In the next step S3, it is determined whether or not the water pressure switch 36 has been activated. If it has been activated, the process proceeds to the next step; if not, the process returns to step S1.

[0042] In the next step S4, an indoor side open hold command is output to the indoor side control circuit 40b, and the process proceeds to the next step. Here, the indoor side open hold command is a command to hold the indoor side opening / closing body 10b in an open state. This indoor side hold open command is a signal that changes in accordance with the operation of the water pressure switch 36, and is output from the outdoor side control circuit 40a. According to the example shown in Fig. 3, this indoor side hold open command is a contact signal such as a relay provided in the emergency power supply device 41c. Other examples of this indoor side open hold command include a signal output directly from the water pressure switch 36, or a signal output from the opening / closing device control panel 41a or the obstacle detection device control panel 41b in response to the operation of the water pressure switch 36.

[0043] Then, in the next step S5, the outdoor opening / closing body 10a is opened to the fully open position, and the process returns to step S1.

[0044] That is, according to the flowchart of FIG. 5, an outdoor-side closed state signal is output from the outdoor-side control circuit 40a, and this outdoor-side closed state signal is input to the indoor-side control circuit 40b. Furthermore, when the water pressure switch 36 is activated, an indoor side hold open command is output from the outdoor side control circuit 40a, and this indoor side hold open command is input to the indoor side control circuit 40b. Furthermore, when the water pressure switch 36 is activated, the outdoor side opening / closing body 10a opens to the fully open position.

[0045] <Control circuit flow of indoor switchgear> In step S11, the indoor-side control circuit 40b proceeds to the next step on condition that the input outdoor-side closed state signal is ON, and if not, jumps to step S13 (see FIG. 6). The outdoor-side closed state signal in step S11 is the signal output by the outdoor-side control circuit 40a in step S2.

[0046] In the next step S12, the indoor side opening / closing body 10b is brought into a fully open state. That is, the indoor opening / closing device 2 is normally in a fully closed state when it does not detect any passing object, but when the outdoor closed state signal is ON, it opens the indoor opening / closing body 10b to the fully open position (see Figure 1(b)).

[0047] In the next step S13, it is determined whether or not the indoor side hold open command output from the outdoor opening / closing device 1 has been input. If the indoor side hold open command has been input, the process proceeds to the next step; if not, the process returns to step S11.

[0048] In the next step S14, the automatic closing of the indoor opening / closing body 10b is disabled, and the process returns to step S11. That is, in normal operation, when the automatic opening / closing mode (see FIG. 7) is selected, when the outdoor opening / closing body 10a is fully opened, That is, when the outdoor opening / closing body 10a is opened by operating the water pressure switch 36, the outdoor closed state signal is turned OFF. Therefore, to prevent the indoor opening / closing body 10b, which is in the fully open state in the automatic opening / closing mode (see FIG. 7), from automatically closing, the outdoor opening / closing hold command output from the outdoor opening / closing device 1 disables the automatic closing and maintains the indoor opening / closing body 10b in the fully open state (see FIG. 1(c)). Specifically, the process of disabling the automatic operation can be performed by disabling the automatic opening / closing mode and enabling only the manual opening / closing mode, even if the automatic opening / closing mode is selected, or by forcibly switching the automatic opening / closing mode to the manual opening / closing mode, even if the automatic opening / closing mode is selected.

[0049] Therefore, according to the opening and closing device structure configured as described above, the outdoor opening and closing body 10a closes in response to a disaster prevention signal, and the indoor opening and closing body 10b opens. Thereafter, when the outdoor opening / closing device 1 is opened by the operation of the water pressure switch 36 by the fire brigade or the like, the indoor opening / closing body 10b will not close automatically, and both the outdoor and indoor opening / closing devices 1, 2 can be kept fully open, thereby facilitating the firefighting activities of the fire brigade or the like.

[0050] <Modification> According to the above embodiment, in step S14 (see Figure 6), operation (manual opening / closing mode) is possible using the hand-operated operating unit 35b. However, as another example of step S14, it is also possible to disable the automatic opening / closing mode and also disable operation using the hand-operated operating unit 35b while maintaining the indoor opening / closing body 10b in the fully open position.

[0051] Furthermore, the present invention is not limited to the specific configurations described above, and can be modified as appropriate within the scope of the present invention.

[0052] <Summary> As described above, the above embodiments disclose the following inventions. (1) An opening and closing device structure comprising an outdoor opening and closing device that opens and closes on the outdoor side of an access route from outdoors to indoors, an indoor opening and closing device that opens and closes on the indoor side of the outdoor opening and closing device on the same access route, and a water pressure switch that operates when water pressure is received on the outdoor side of the outdoor opening and closing device, wherein the outdoor opening and closing device is in a fully closed state and is opened by operation of the water pressure switch, and the indoor opening and closing device has a function to open on condition that the outdoor opening and closing device is closed, and a function to automatically close from the open state when there is no object passing through, and when the outdoor opening and closing device is opened by operation of the water pressure switch, the automatic closing of the indoor opening and closing device is disabled (see Figure 1(c), Figure 5 and Figure 6). (2) An opening and closing device structure as described in (1) (see Figures 1(b), 5 and 6) characterized in that an indoor side open hold command is output when the water pressure switch is activated, and this indoor side open hold command disables the automatic closing of the indoor side opening and closing device. (3) The opening and closing device structure described in (2) (see Figure 3) is characterized in that it is provided with an emergency power supply device that operates in response to the operation of the water pressure switch, and the indoor side open hold command is a signal output from the emergency power supply device. (4) The opening and closing device structure according to any one of (1) to (3) is characterized in that the outdoor opening and closing device is configured to open and close a metal opening and closing body, and the indoor opening and closing device is configured to open and close a sheet-like opening and closing body (see Figures 2 and 3). [Explanation of symbols]

[0053] 1: Outdoor switchgear 2: Indoor switchgear 10a: Outdoor opening and closing body 10b: Indoor opening and closing body 35a, 35b: Hand-operated operation unit 36: Water pressure switch 40a: Outdoor control circuit 40b: Indoor control circuit

Claims

1. An opening and closing device structure comprising an outdoor opening and closing device that opens and closes on the outdoor side of an entrance path leading from the outdoors to the indoors, an indoor opening and closing device that opens and closes on the indoor side of the outdoor opening and closing device on the same entrance path, and a water pressure switch that operates when water pressure is received on the outdoor side of the outdoor opening and closing device, and the outdoor opening and closing device in a fully closed state is opened by operation of the water pressure switch, the indoor opening / closing device has a function of opening on the condition that the outdoor opening / closing device is closed, and a function of automatically closing from an open state when there is no object passing through, When the outdoor opening / closing device is opened by the operation of the water pressure switch, the automatic closing of the indoor opening / closing device is disabled.

2. 2. The opening and closing device structure according to claim 1, wherein an indoor side hold open command is output in response to operation of the water pressure switch, and the indoor side hold open command disables the automatic closing of the indoor side opening and closing device.

3. An emergency power supply device is provided which operates in response to the operation of the water pressure switch, 3. The switchgear structure according to claim 2, wherein the indoor side hold-open command is a signal output from the emergency power supply device.

4. The opening and closing device structure according to any one of claims 1 to 3, characterized in that the outdoor opening and closing device is configured to open and close a metal opening and closing body, and the indoor opening and closing device is configured to open and close a sheet-like opening and closing body.

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