Sheet shutter and sheet shutter opening / closing system

Abstract

To provide a sheet shutter and a sheet shutter opening / closing system capable of facilitating construction of the sheet shutter.SOLUTION: A sheet shutter 1 includes: a flexible sheet body 10; a winding drum 11 for winding the sheet body 10; an opening / closing drive part 13 for rotationally driving the winding drum 11 in a normal direction and a reverse direction; guide rails 14 provided at both ends of an opening part and configured to guide the sheet body 10 to move up and down; a main control part 15 which has a communication control part 17 for receiving signals from the outside, and an opening / closing control part 18 for controlling movement up and down of the sheet body 10 based on information received by the communication control part 17; and operation switches 3-7 for transmitting, to the communication control part 17, a command indicating opening or closing of the sheet shutter 1. The operation switches 3-7 are fixed in a building 2, and the operation switches 3-7 wirelessly transmit the command to the communication control part 17.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a seat shutter that opens and closes an entrance by raising and lowering a seat, and to a seat shutter opening and closing system. [Background technology]

[0002] Sheet shutters are installed in buildings such as factories and warehouses, and allow for the quick opening and closing of entrances and exits when loading and transport vehicles enter and exit, thereby reducing the time required to pass through the entrance and improving work efficiency. They also improve air conditioning efficiency by minimizing the influence of the external environment on the indoor environment, and their increased dust and insect resistance helps maintain a cleaner indoor environment.

[0003] When installing a sheet shutter, guide rails are fixed to the left and right sides of a sheet case that holds a sheet drum wound on a take-up drum inside an entrance or partition opening of a building such as a factory or warehouse (see, for example, Patent Document 1). The opening and closing operation unit for the sheet shutter is sometimes provided on a guardrail, for example, but since it is inefficient to get off a loading / transport vehicle and approach the guide rail to operate it when it enters or exits, there are known sheet shutters that have a one-point or three-point switch operation unit provided at a desired position on the wall, or a pull switch operation unit suspended from the ceiling (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-203241 [Patent Document 2] Japanese Patent Application Publication No. 08-135347 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when the control unit is fixed to a wall or ceiling, the power cable and communication cable must be routed inside the wall or ceiling. This type of routing increases the number of construction steps required to install the sheet shutter, and also increases the cost of installing the sheet shutter, as contractors who carry out demolition and renovation work on buildings are required to conduct a preliminary survey for the presence of asbestos and report this to the relevant authorities.

[0006] Therefore, an object of the present invention is to provide a sheet shutter and a sheet shutter opening and closing system that can facilitate the installation of the sheet shutter. [Means for solving the problem]

[0007] The sheet shutter of the present invention is a sheet shutter that separates an opening in a building in an openable and closable manner, and comprises: a flexible sheet body; a winding drum that is located above the opening and winds up the sheet body; an opening / closing drive unit that drives the winding drum to rotate in forward and reverse directions; guide rails that are located at both ends of the opening and guide the sheet body to rise and fall; a main control unit that has a communication control unit that receives signals from outside; and an opening / closing control unit that controls the rise and fall of the sheet body based on information received by the communication control unit; and an operation switch that sends a command to the communication control unit to open and close the sheet shutter, wherein the operation switch is fixed inside the building and sends the command to the communication control unit wirelessly.

[0008] The sheet shutter of the present invention is characterized in that the operation switch is fixed to a wall or ceiling of the building.

[0009] The seat shutter of the present invention is characterized in that the operation switch is a wirelessly communicating pull switch that is suspended from the ceiling and that opens and closes by pulling an operating cord.

[0010] The sheet shutter of the present invention is characterized in that the operation switch is a switch unit capable of wireless communication, which is attached to a wall surface by adhesive or by screws.

[0011] The sheet shutter of the present invention is characterized in that the operating switch comprises a non-contact sensor, a chemical solution spraying mechanism that sprays a chemical solution when the non-contact sensor detects an object to be detected, and a wireless communication unit that transmits a command to the main control unit to open or close the sheet shutter after the chemical solution spraying mechanism has sprayed the chemical solution.

[0012] The sheet shutter of the present invention is characterized in that the operation switch is supplied with power from a power outlet arranged on a wall, floor or ceiling.

[0013] The sheet shutter of the present invention is characterized in that the operation switch is supplied with power from a battery disposed inside.

[0014] The sheet shutter opening / closing system of the present invention is a sheet shutter opening / closing system in which a plurality of sheet shutters as described in any one of claims 1 to 5 are provided on a path from an outer space to an inner space, and the plurality of sheet shutters include an outer sheet shutter provided on the outer space side of the path and an inner sheet shutter provided on the inner space side of the outer sheet shutter, and the main control unit of the outer sheet shutter controls the opening of the outer sheet shutter when the inner sheet shutter is in a closed state, and the communication control unit of the main control unit of the outer sheet shutter and the communication control unit of the main control unit of the inner sheet shutter are capable of wireless communication with each other and communicate the open / closed states of the outer sheet shutter and the inner sheet shutter.

[0015] The sheet shutter opening / closing system of the present invention is characterized in that the intermediate space between the inner sheet shutter and the outer sheet shutter is maintained at a higher pressure than the outer space. [Effects of the Invention]

[0016] According to the sheet shutter of the present invention, the communication control unit of the main control unit receives a command to open or close the sheet shutter from the operation switch, and the opening / closing control unit controls the raising and lowering of the sheet body based on the command, and the operation switch transmits the command wirelessly to the communication control unit, so there is no need for a communication cable between the main control unit of the sheet shutter and the operation switch, and the installation location of the operation switch within the building can be freely decided in consideration of convenience during operation without worrying about wiring. Furthermore, since there is no need for a communication cable, the wiring installation process can be reduced, and installation work can be saved.

[0017] According to the sheet shutter of the present invention, the operating switch is fixed to the wall or ceiling of the building, so that wireless wiring is not required, and therefore, prior asbestos surveys that would be required when wiring inside walls or ceiling pockets, for example, are not required, simplifying installation.

[0018] According to the seat shutter of the present invention, the operating switch is a wirelessly communicating pull switch that is suspended from the ceiling and opens and closes by pulling an operating cord, eliminating the need to wire a communication cable to the ceiling, improving workability, and allowing the driver of a loading and transport vehicle such as a forklift to open and close the seat shutter without getting out of the vehicle.

[0019] According to the sheet shutter of the present invention, the operating switch is a switch unit capable of wireless communication that is glued or fixed to the wall surface with screws, so there is no need to make mounting holes in the wall surface and it can be fixed to the wall surface very easily.In addition, since no wiring is required, installation is made easier.In addition, the freedom in the location of the operating switch is increased, so the operating switch can be placed in a convenient position when opening and closing the sheet shutter.

[0020] According to the sheet shutter of the present invention, when the non-contact sensor detects an object to be detected, the operating switch causes the chemical solution spray mechanism to spray the chemical solution, and after the chemical solution has been sprayed, the wireless communication unit sends a command to open or close the sheet shutter, so that the sheet shutter opens and closes after the hands have been disinfected by spraying the chemical solution, ensuring that hands are disinfected before entering the space inside the sheet shutter. Furthermore, because the command to open or close the sheet shutter is sent from the wireless communication unit to the main control unit via wireless communication, there is no need to wire a communication cable, and the operating switch with hand disinfection function can be easily installed.

[0021] According to the sheet shutter of the present invention, the operating switch receives power from a power outlet placed on the wall, floor, or ceiling, eliminating the need to wire an electrical cable, for example, inside a wall, under the floor, or in a ceiling pocket, improving the ease of installation of the operating switch and simplifying installation by eliminating the need for a preliminary survey for asbestos, which occurs when wiring inside a wall or in a ceiling pocket, for example.

[0022] According to the sheet shutter of the present invention, the operation switch is supplied with power from a battery placed inside, so there is no need to run an electric cable, for example, inside a wall, under the floor, or in a ceiling pocket, which improves the ease of installation of the operation switch and simplifies installation by eliminating the need for a prior survey for asbestos, which occurs when wiring inside a wall or in a ceiling pocket, etc. Furthermore, the presence of an internal power supply eliminates the need for a cable between the outlet and the operation switch, allowing the operation switch to be placed in any position taking into consideration convenience during operation.

[0023] According to the sheet shutter opening and closing system of the present invention, the outer sheet shutter and the inner sheet shutter are controlled to open when one of them is closed, so that both the outer sheet shutter and the inner sheet shutter are not opened at the same time, thereby suppressing the influence of the outer space on the environment of the inner space. Furthermore, the communication control unit of the main control unit of the outer sheet shutter and the communication control unit of the main control unit of the inner sheet shutter are capable of wireless communication with each other and communicate each other's open / closed states, so there is no need to connect the main control units of the inner sheet shutter and the outer sheet shutter with a communication cable, making installation easier.

[0024] According to the sheet shutter opening / closing system of the present invention, the intermediate space between the inner sheet shutter and the outer sheet shutter is maintained at a higher pressure than the outer space, so that when the outer sheet shutter is opened, air is prevented from flowing from the outer space into the intermediate space, the influence of the outer space on the intermediate space is prevented, and the environment in the inner space can be maintained in a desirable state. [Brief explanation of the drawings]

[0025] [Figure 1] FIG. 1 is a partially omitted perspective view showing the overall structure of the building. [Figure 2] FIG. 3 is a diagram showing a sheet shutter and various operation switches. [Figure 3] FIG. 10 is a front view of a sheet shutter provided with a three-point switch unit. [Figure 4] FIG. 10 is a perspective view showing the three-point switch unit placed on a wall surface. [Figure 5] FIG. 10 is a cross-sectional view illustrating the state in which the three-point switch unit is fixed to the wall surface with screws. [Figure 6] 10 is a cross-sectional view illustrating a state in which the three-point switch unit is adhesively fixed to a wall surface. FIG. [Figure 7] FIG. 10 is a front view showing the three-way switch unit receiving power from the power outlet. [Figure 8] FIG. 10 is a perspective view showing the single-point switch unit arranged on a wall surface. [Figure 9]FIG. 10 is a cross-sectional view illustrating the state in which the single-point switch unit is fixed to the wall surface with a screw. [Figure 10] FIG. 10 is a perspective view showing a state in which the non-contact switch unit is arranged on a wall surface. [Figure 11] FIG. 10 is a cross-sectional view illustrating a state in which the non-contact switch unit is fixed to a wall surface with a screw. [Figure 12] 10 is a perspective view showing a state in which the non-contact switch unit with hand disinfection function is arranged on a guide rail. FIG. [Figure 13] 10 is a cross-sectional view illustrating a state in which the non-contact switch unit with hand disinfection function is fixed to the surface of the guide rail. FIG. [Figure 14] FIG. 10 is a front view illustrating the state in which the non-contact switch unit with hand disinfection function is fixed to the surface of the guide rail. [Figure 15] FIG. 10 is a front view illustrating the state in which the pull switch is fixed to the ceiling portion. [Figure 16] FIG. 3 is a cross-sectional view illustrating the internal structure of the pull switch. [Figure 17] FIG. 2 is a partially omitted perspective view illustrating the sheet shutter opening and closing system. DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, an embodiment of a sheet shutter 1 and a sheet shutter opening / closing system according to the present invention will be described with reference to the drawings. As shown in Fig. 1, a plurality of sheet shutters 1 of this embodiment are provided in a building 2 such as a factory or warehouse. Within the building 2, a space is formed in which the environment, such as temperature, humidity, cleanliness, and insect resistance, is controlled, depending on, for example, the manufacturing process in the factory or the goods stored in the warehouse, and the sheet shutter 1 is provided at the entrance to this space. The sheet shutter 1 may be provided, for example, in an opening in an exterior wall separating indoors from outdoors, or in a partition opening separating two indoor spaces.

[0027] [About the structure of the sheet shutter] As shown in Figures 2 and 3, the sheet shutter 1 comprises a flexible sheet body 10, a winding drum 11 that is located above the entrance where the sheet shutter 1 is installed and winds up the sheet body 10, a storage box 12 that is installed on the upper edge of the entrance and stores the winding drum 11, an opening / closing drive unit 13 that drives the winding drum 11 to rotate in a forward rotation direction in which the sheet body 10 is wound onto the winding drum 11 and in a reverse rotation direction in which the sheet body 10 is unwound from the winding drum 11, a pair of left and right guide rails 14 that are formed vertically along both side edges and guide the sheet body 10 up and down, a main control unit 15 that controls the opening and closing of the sheet shutter 1, and operation switches 3 to 7 that send commands to open and close the sheet shutter 1 based on a specified operation.

[0028] The sheet body 10 is a rectangular curtain made of a synthetic resin material that is flexible, weather-resistant, and, if necessary, light-transmitting, light-blocking, or insect-repellent. The upper end of the sheet body 10 is attached axially to the circumferential surface of a winding drum 11. Guide protrusions (not shown) are provided on the left and right sides of the sheet body 10, and the sheet body 10 is inserted into guide rails 14 and engaged with them so that it can slide up and down. This allows the sheet body 10 to smoothly move up and down while maintaining tension in the width direction.

[0029] The winding drum 11 is stored in a storage box 12 formed at the upper end of the opening, and is capable of rotating about its axis to wind and unwind the sheet body 10. The opening / closing drive unit 13 is a motor that can rotate the winding drum 11 in forward and reverse directions. The guide rails 14 have a groove-shaped cross section and are formed vertically along both side edges of the opening, and slidably accommodate guide protrusions (not shown) formed on the left and right sides of the sheet body 10.

[0030] The main control unit 15 has a communication control unit 17 that receives signals from the outside, an opening / closing control unit 18 that controls the elevation of the sheet body 10 based on information received by the communication control unit 17, and an operation unit 19 that accepts various settings and operations for the sheet body 10. The main control unit 15 is fixed to the surface of the guide rail 14. The opening / closing control unit 18 is a processor that can send commands to the opening / closing drive unit 13 to drive forward and reverse rotations. The operation unit 19 is an input interface that performs opening / closing operations and various setting operations for the sheet shutter 1. The communication control unit 17 is a communication interface that receives signals from the various operation switches 3 to 7 and other sheet shutters 1 and transmits them to the opening / closing control unit 18, and outputs commands from the opening / closing control unit 18 to the opening / closing drive unit 13. The opening / closing control unit 18 controls the opening / closing drive unit 13 of the sheet shutter 1 based on signals received by the communication control unit 17 from the various operation switches 3 to 7, etc.

[0031] The operation switches 3 to 7 are configured to be able to wirelessly send commands to the communication control unit 17 of the main control unit 15. The operation switches 3 to 7 are fixed inside the building 2, such as on the wall surface 20 or ceiling 21 of the building 2 in which the sheet shutter 1 is installed. The sheet shutter 1 may be provided with multiple types of operation switches 3 to 7. The operation switches 3 to 7 in this embodiment include a three-point switch unit 3 having three operation buttons 30 formed on its surface, a one-point switch unit 4 having one operation button 30 formed on its surface, a non-contact switch unit 5 having a first non-contact sensor 50, a non-contact switch unit 6 with hand disinfection function, and a pull switch 7 suspended from the ceiling 21. The sheet shutter 1 is not limited to being provided with all of the operation switches 3 to 7, namely the three-point switch unit 3, the one-point switch unit 4, the non-contact switch unit 5, the non-contact switch unit 6 with hand disinfection function, and the pull switch 7. Operation switches 3 to 7 having necessary functions are selected and installed from the various operation switches 3 to 7 depending on the usage situation of the sheet shutter 1. The "operation switch" in the present invention corresponds to any of the three-point switch unit 3, the one-point switch unit 4, the non-contact switch unit 5, the non-contact switch unit 6 with hand disinfection function, and the pull switch 7. Each of the operation switches 3 to 7 will be explained below.

[0032] [About the 3-way switch unit] As shown in Fig. 4, the three-point switch unit 3 is attached to a wall surface 20 at a position close to the sheet shutter 1. As shown in Fig. 5, the three-point switch unit 3 has a bracket 31 fixed to the wall surface 20, a three-point switch cover 33 fixed to the bracket 31, three operation buttons 30 provided on the surface of the three-point switch cover 33, a three-point switch control unit 34 that detects pressing of these three operation buttons 30 and instructs the wireless control unit 32 to send a command related to opening and closing the sheet shutter 1, the wireless control unit 32 that sends a command to the communication control unit 17 of the main control unit 15 of the sheet shutter 1 based on the instruction from the three-point switch control unit 34, and a battery 35 that supplies power to the three-point switch control unit 34 and the wireless control unit 32.

[0033] The bracket 31 is fixed to the wall surface 20 by driving screws 22, and is formed into a shape that allows the three-point switch cover 33 to be fitted thereto. Note that the bracket 31 is not limited to being fixed to the wall surface 20 by screws 22, and depending on the material of the wall surface 20, the bracket 31 may be adhesively fixed to the wall surface 20 with strong double-sided tape 23, as shown in FIG. 6. If the three-point switch unit 3 is configured to be fixed to the wall surface 20 by adhering the bracket 31 to the wall surface 20, no screw holes need be formed in the wall surface 20, and installation can be made extremely easy. Furthermore, the three-point switch unit 3 is not necessarily limited to being fixed to the wall surface 20, and may be fixed to the surface of the guide rail 14, for example, as long as it is installed in a position within the building 2 where it can be conveniently operated by people passing by the sheet shutter 1.

[0034] The three-point switch cover 33 has a three-point switch control unit 34, which is a circuit board equipped with a pressure-sensitive unit that detects the pressing of three operation buttons 30 provided on the surface, fixed to the inside, and the three-point switch control unit 34 is equipped with a battery holder 36 that secures a battery 35 and a wireless control unit 32. The wireless control unit 32 is a microcomputer circuit board that controls wireless communication. The wireless control unit 32 can communicate with the desired sheet shutter 1 by setting a frequency channel assigned to each sheet shutter 1 installed in the building 2.

[0035] In this way, the three-point switch unit 3 is supplied with power from the battery 35 located inside, eliminating the need to wire electrical cables outside the three-point switch unit 3 and improving installation efficiency. Also, unlike when wiring electrical wiring inside a wall or ceiling, a preliminary asbestos survey is not required, simplifying installation. Furthermore, the presence of an internal power supply eliminates restrictions on where the three-point switch unit 3 can be placed, allowing it to be placed anywhere convenient for operating the three-point switch unit 3.

[0036] The three-point switch unit 3 is not limited to being powered by an internal battery 35. As shown in FIG. 7 , the three-point switch unit 3 may be powered by a power outlet 24 located on the wall 20, floor, or ceiling. For example, the three-point switch unit 3 may receive power by extending a power cable 25 to the outside and connecting the power plug to the power outlet 24 via an AC / DC converter (not shown). Receiving power from the power outlet 24 originally located on the wall 20, floor, or ceiling eliminates the need for additional electrical wiring within the wall or ceiling, facilitating installation and further facilitating installation by eliminating the need for a preliminary asbestos survey. The AC / DC converter may be located inside the three-point switch unit 3 if there is space, or it may be located outside the three-point switch unit 3 and fixed to the wall 20 together with the three-point switch unit 3.

[0037] The three operation buttons 30 of the three-way switch unit 3 are assigned the functions of "up," "stop," and "down." When the "up" operation button 30 is pressed, the three-way switch control unit 34 wirelessly transmits an up command to the communication control unit 17 of the main control unit 15 via the wireless control unit 32. When the communication control unit 17 receives the up command, if the sheet shutter 1 is in the closed state, the opening / closing control unit 18 of the main control unit 15 drives the opening / closing drive unit 13 to rotate in the forward direction, causing the sheet body 10 to be wound up by the take-up drum 11, and transitioning the sheet shutter 1 to the open state. On the other hand, when the communication control unit 17 receives the up command, if the sheet shutter 1 is in the open state, it does not drive the opening / closing drive unit 13 and maintains the state as it is.

[0038] When the "Stop" operation button 30 is pressed, the three-way switch control unit 34 wirelessly transmits a stop command to the communication control unit 17 of the main control unit 15 via the wireless control unit 32. When the communication control unit 17 receives the stop command, the opening / closing control unit 18 of the main control unit 15 stops the rotational drive of the opening / closing drive unit 13 if the sheet shutter 1 is currently being driven for opening or closing. If the sheet shutter 1 is not currently being driven for opening or closing, the state remains as it is.

[0039] When the "down" operation button 30 is pressed, the three-way switch control unit 34 wirelessly transmits a down command to the communication control unit 17 of the main control unit 15 via the wireless control unit 32. When the communication control unit 17 receives the down command, if the sheet shutter 1 is in the open state, the opening / closing control unit 18 of the main control unit 15 drives the opening / closing drive unit 13 to rotate in the reverse direction to unwind the sheet body 10 from the take-up drum 11 and transition the sheet shutter 1 to the closed state. On the other hand, when the communication control unit 17 receives the down command, if the sheet shutter 1 is in the closed state, it does not drive the opening / closing drive unit 13 and maintains the state as it is.

[0040] Even if the operation switches 3 to 7 of the three-point switch unit 3 are not operated, the setting of the sheet shutter 1 can be changed, such as automatically driving the opening / closing drive unit 13 in the reverse direction to transition to the closed state after a predetermined time has elapsed since the sheet shutter 1 was opened.

[0041] [About the single switch unit] 8 and 9, the one-point switch unit 4 is attached to a wall surface 20 at a position close to the sheet shutter 1, for example, and includes a bracket 31 fixed to the wall surface 20, a one-point switch cover 40 fixed to the bracket 31, one operation button 30 provided on the surface of the one-point switch cover 40, a one-point switch control unit 41 that detects pressing of the operation button 30 and instructs the wireless control unit 32 to send a command related to opening and closing the sheet shutter 1, a wireless control unit 32 that sends a command to the communication control unit 17 of the main control unit 15 of the sheet shutter 1 based on the instruction from the one-point switch control unit 41, and a battery 35 that supplies power to the one-point switch control unit 41 and the wireless control unit 32.

[0042] Since the bracket 31 has the same configuration as that of the three-point switch unit 3, it is given the same reference numeral and its description will be omitted. The bracket 31 of the one-point switch unit 4 is also not limited to being fixed to the wall surface 20 with the screws 22, but may be adhesively fixed with strong double-sided tape 23. Furthermore, the fixing location of the one-point switch unit 4 is not limited to the wall surface 20, but may be fixed to the surface of the guide rail 14, for example, and may be installed in a position within the building 2 that takes into consideration the convenience of people passing through the sheet shutter 1.

[0043] The single-point switch cover 40 has a single-point switch control unit 41, a circuit board equipped with a pressure-sensitive unit that detects the depression of one of the operation buttons 30 on its surface, fixed to its inside. The single-point switch control unit 41 is equipped with a battery holder 36 for securing a battery 35 and a wireless control unit 32. The battery holder 36 and wireless control unit 32 have the same configuration as those of the three-point switch unit 3, so they are denoted by the same reference numerals and will not be described again. The single-point switch unit 4 receives power from the internal battery 35, eliminating the need for external electrical wiring, improving installation. Furthermore, installation is simplified by eliminating the need for a preliminary asbestos survey, as is the case when wiring electrical wiring inside walls or ceiling recesses. Furthermore, the internal power supply eliminates restrictions on the placement of the single-point switch unit 4, allowing it to be freely placed in a location that takes into account convenience during operation.

[0044] The one-point switch unit 4 may be supplied with power from a power outlet 24 arranged on the wall surface 20, floor surface, or ceiling surface, similar to the three-point switch unit 3. The specific configuration is the same as that of the three-point switch unit 3, so a detailed explanation will be omitted. Receiving power from the power outlet 24 eliminates the need for additional electrical wiring inside the wall or ceiling, making installation easier, and eliminating the need for a preliminary asbestos survey further simplifies installation.

[0045] The operation button 30 of the one-point switch unit 4 has the functions of "up," "stop," and "down." Specifically, when the operation button 30 is pressed, the one-point switch control unit 41 wirelessly transmits an open / close command to the communication control unit 17 of the main control unit 15 via the wireless control unit 32. When the communication control unit 17 receives the open / close command, if the sheet shutter 1 is in the closed state, the open / close control unit 18 of the main control unit 15 rotates the open / close drive unit 13 in the forward direction to wind up the sheet body 10 on the take-up drum 11, thereby transitioning the sheet shutter 1 to the open state. On the other hand, when the communication control unit 17 receives the open / close command, if the sheet shutter 1 is in the open state, the open / close drive unit 13 rotates in the reverse direction to unwind the sheet body 10 from the take-up drum 11, thereby transitioning the sheet shutter 1 to the closed state. Furthermore, when the communication control unit 17 receives the open / close command, the open / close control unit 18 of the main control unit 15 stops the rotation of the open / close drive unit 13 if the sheet shutter 1 is being driven for opening or closing.

[0046] [About the non-contact switch unit] 10 and 11 , the non-contact switch unit 5 is attached to a wall surface 20 at a position close to the sheet shutter 1, for example, and includes a bracket 31 fixed to the wall surface 20, a non-contact switch cover 51 fixed to the bracket 31, a first non-contact sensor 50 provided inside the non-contact switch cover 51, a first non-contact switch control unit 52 that instructs the wireless control unit 32 to send a command related to opening and closing the sheet shutter 1 based on the first non-contact sensor 50 sensing an object to be sensed, the wireless control unit 32 that transmits the command to the communication control unit 17 of the main control unit 15 of the sheet shutter 1 based on the instruction from the first non-contact switch control unit 52, and a battery 35 that supplies power to the first non-contact switch control unit 52 and the wireless control unit 32.

[0047] Since the bracket 31 has the same configuration as those of the three-point switch unit 3 and the one-point switch unit 4, it is given the same reference numeral and description thereof will be omitted. The bracket 31 of the non-contact switch unit 5 is not limited to being fixed to the wall surface 20 with the screws 22, but may also be adhesively fixed with strong double-sided tape 23. Furthermore, the fixing location of the non-contact switch unit 5 is not limited to the wall surface 20, but may be fixed to the surface of the guide rail 14, for example, and may be installed in a position within the building 2 that takes into consideration the convenience of people passing through the sheet shutter 1.

[0048] The contactless switch cover 51 has a first contactless switch control unit 52, which is a circuit board that mounts the first contactless sensor 50, fixed to its inside. The first contactless switch control unit 52 also has a battery holder 36 for securing a battery 35 and a wireless control unit 32 mounted thereon. The battery holder 36 and the wireless control unit 32 have the same configuration as the three-point switch unit 3 and the one-point switch unit 4, and therefore are denoted by the same reference numerals and will not be described again. The contactless switch unit 5 may be powered from a power outlet 24 located on the wall surface 20, floor, or ceiling, just like the three-point switch unit 3 and the one-point switch unit 4. While the power consumption required to operate the first contactless sensor 50 is greater than that of the three-point switch unit 3 and the one-point switch unit 4, receiving power from the power outlet 24 eliminates the problem of battery exhaustion, eliminates the need for additional electrical wiring in the wall or ceiling, and facilitates installation. Eliminating the need for a preliminary asbestos survey further simplifies installation.

[0049] The first non-contact sensor 50 of the non-contact switch unit 5 has the functions of "up," "stop," and "down." When the first non-contact sensor 50 detects an object to be detected, the first non-contact switch control unit 52 wirelessly transmits an open / close command to the communication control unit 17 of the main control unit 15 via the wireless control unit 32. When the communication control unit 17 receives the open / close command, if the sheet shutter 1 is in the closed state, the open / close control unit 18 of the main control unit 15 rotates the open / close drive unit 13 in the forward direction to wind up the sheet body 10 on the take-up drum 11, thereby transitioning the sheet shutter 1 to the open state. On the other hand, when the communication control unit 17 receives the open / close command, if the sheet shutter 1 is in the open state, the open / close drive unit 13 rotates in the reverse direction to unwind the sheet body 10 from the take-up drum 11, thereby transitioning the sheet shutter 1 to the closed state. Furthermore, when the communication control unit 17 receives the open / close command, the open / close control unit 18 of the main control unit 15 stops the rotation of the open / close drive unit 13 if the sheet shutter 1 is being driven to open or close.

[0050] [About the non-contact switch unit with hand sanitizer function] 12 to 14, the contactless switch unit 6 with hand sanitizing function is attached to the underside of the main control unit 15 provided on the surface of the guide rail 14, for example. The contactless switch unit 6 with hand sanitizing function has: a spray cover bracket 60 fixed to the guide rail 14; a downwardly inclined spray nozzle cover 61 fixed to the spray cover bracket 60; a second contactless sensor 62 provided inside the cover with spray nozzle 61; a chemical solution spraying mechanism 63 that sprays a chemical solution based on the second contactless sensor 62 detecting an object to be detected; a second contactless switch control unit 64 that instructs the wireless control unit 32 to send a command related to opening and closing the sheet shutter 1 after the chemical solution spraying mechanism 63 has sprayed; the wireless control unit 32 that transmits the command to the communication control unit 17 of the main control unit 15 of the sheet shutter 1 based on the instruction from the second contactless switch control unit 64; and a battery 35 that supplies power to the second contactless switch control unit 64 and the wireless control unit 32. The "non-contact sensor" in the present invention corresponds to the second non-contact sensor 62 in this embodiment.

[0051] The spray cover bracket 60 is fixed to the underside of the main control unit 15 and the surface of the guide rail 14 by driving screws 22 (not shown), and is shaped so that the spray nozzle cover 61 can be fitted in a downwardly inclined position. The spray cover bracket 60 may be adhesively fixed with strong double-sided tape 23 instead of by screws. This eliminates the need for screw holes in the wall surface 20, making installation extremely easy. Furthermore, by fixing the non-contact switch unit 6 with hand sanitizer function to the surface of the guide rail 14, the tank 65 for storing the chemical solution can also be inserted into the remaining space of the guide rail 14, eliminating the need to insert the chemical solution tank 65 into the wall, improving installation ease.

[0052] The chemical solution spraying mechanism 63 has a tank 65 that stores the chemical solution, a pipe 66 connected to the tank 65, a pump 67 that guides the chemical solution stored in the tank 65 to a spray nozzle 68, and the spray nozzle 68 that sprays the chemical solution. The tank 65 is housed within the guide rail 14 and is provided with a refill hole (not shown) for replenishing the chemical solution from the outside. The pump 67 supplies the chemical solution to the spray nozzle 68 based on an instruction from the second non-contact switch control unit 64. The second non-contact switch control unit 64 instructs the chemical solution spraying mechanism 63 to spray the chemical solution based on detection by the second non-contact sensor 62.

[0053] A second non-contact switch control unit 64, which is a circuit board that mounts a second non-contact sensor 62 provided inside, is fixed to the inside of the spray nozzle cover 61, and a battery holder 36 that secures a battery 35 and a wireless control unit 32 are mounted on the second non-contact switch control unit 64. The battery holder 36 and the wireless control unit 32 have the same configuration as the three-point switch unit 3, the one-point switch unit 4, and the non-contact switch unit 5, so they are denoted by the same reference numerals and their explanations are omitted.

[0054] The contactless switch unit 6 with hand sanitizing function may be supplied with power from a power outlet 24 arranged on the wall surface 20, floor surface, or ceiling surface, similar to the three-point switch unit 3, one-point switch unit 4, and contactless switch unit 5. Although the amount of power consumed to operate the second contactless sensor 62 and chemical pump 67 is greater than that of the three-point switch unit 3, one-point switch unit 4, and contactless switch unit 5, receiving power from the power outlet 24 eliminates the problem of running out of batteries and does not require electrical wiring, making installation easier.

[0055] The second non-contact sensor 62 of the non-contact switch unit 6 with hand sanitizer function has the functions of "up," "stop," and "down," and when the second non-contact sensor 62 detects an object, the second non-contact switch control unit 64 first drives the pump 67 to supply the medicinal liquid to the spray nozzle 68. When the medicinal liquid is sprayed from the spray nozzle 68, an open / close command is wirelessly transmitted to the communication control unit 17 of the main control unit 15 via the wireless control unit 32. By setting the time from detection by the second non-contact sensor 62 until the pump 67 is driven and the medicinal liquid is sprayed from the spray nozzle 68 to, for example, 1 second, and setting the time from detection by the second non-contact sensor 62 until the wireless control unit 32 wirelessly transmits the open / close command to the communication control unit 17 to, for example, 2 seconds, which is longer than the time until the medicinal liquid is sprayed, the wireless control unit 32 can transmit the open / close command after the medicinal liquid is sprayed.

[0056] When the communication control unit 17 receives an open / close command, if the sheet shutter 1 is in a closed state, the open / close control unit 18 of the main control unit 15 rotates the open / close drive unit 13 in the forward direction to wind up the sheet body 10 on the take-up drum 11, and shifts the sheet shutter 1 to an open state. On the other hand, when the communication control unit 17 receives an open / close command, if the sheet shutter 1 is in an open state, the open / close drive unit 13 rotates in the reverse direction to pay out the sheet body 10 from the take-up drum 11, and shifts the sheet shutter 1 to a closed state. Also, when the communication control unit 17 receives an open / close command, if the sheet shutter 1 is being driven for opening or closing, the open / close control unit 18 of the main control unit 15 stops the rotation of the open / close drive unit 13.

[0057] [About the pull switch] As shown in FIGS. 15 and 16 , the pull switch 7 has an operating cord 80 instead of the operating button 30, and its electrical configuration is similar to that of the single-point switch unit 4, so detailed description will be omitted. The pull switch 7 is fixed to and suspended from the ceiling 21 near the seat shutter 1. A cylindrical pull switch cover 81 is provided on the pull switch 7. The upper end of the pull switch cover 81 is closed by an upper cap 82, and the lower end of the pull switch cover 81 is closed by a lower cap 83. A ring-shaped eyebolt 84 is attached to the upper cap 82. A beam 26, for example, made of H-shaped steel, is erected on the ceiling 21, and the upper end of a wire 85 is fixed to a flange of the beam 26 by a beam fixing bracket 86. The lower end of the wire 85 is fixed to the eyebolt 84 at the upper end of the pull switch 7, so that the pull switch 7 is suspended from the beam 26 of the ceiling 21.

[0058] A pull switch body 87 is provided within the pull switch cover 81, and the pull switch body 87 is formed with a ring 88 protruding downward. The ring 88 of the pull switch body 87 protrudes downward through the lower cap 83 at the bottom end of the pull switch cover 81, and the operating cord 80 is tied to and hangs down from the ring 88. The pull switch body 87 converts the downward pulling of the operating cord 80 into an electrical signal and transmits it to the pull switch control unit 89. The pull switch control unit 89 is formed within the pull switch cover 81 and instructs the wireless control unit 32 to send a command related to opening and closing the seat shutter 1 based on a signal from the pull switch body 87. The pull switch control unit 89 is a board that processes various information and has the wireless control unit 32 mounted thereon. The wireless control unit 32 has the same configuration as the wireless control units 32 of the three-point switch unit 3, one-point switch unit 4, etc. described above, so the same reference numerals are used and a description thereof will be omitted. The wireless control unit 32 is provided with an antenna 90 protruding downward to improve the accuracy of wireless communication. A battery 35 is placed inside the pull switch cover 81 to supply power, eliminating the need for external electrical cables. This makes installation easy, and by eliminating the need for electrical wiring, a prior asbestos survey is no longer necessary, further simplifying installation.

[0059] When the operating cord 80 of the pull switch 7 is pulled, the pull switch control unit 89 wirelessly transmits an open / close command to the communication control unit 17 of the main control unit 15 via the wireless control unit 32. When the communication control unit 17 receives the open / close command, if the sheet shutter 1 is in the closed state, the open / close control unit 18 of the main control unit 15 rotates the open / close drive unit 13 in the forward direction to wind up the sheet body 10 on the take-up drum 11, and transitions the sheet shutter 1 to the open state. On the other hand, when the communication control unit 17 receives the open / close command, if the sheet shutter 1 is in the open state, the open / close drive unit 13 rotates in the reverse direction to unwind the sheet body 10 from the take-up drum 11, and transitions the sheet shutter 1 to the closed state. Furthermore, when the communication control unit 17 receives the open / close command, if the sheet shutter 1 is being driven for opening or closing, the open / close control unit 18 of the main control unit 15 stops the rotation of the open / close drive unit 13.

[0060] [About the remote controller] The sheet shutter 1 of this embodiment may be provided with one or more types of operation switches 3 to 7 selected from a three-point switch unit 3, a one-point switch unit 4, a non-contact switch unit 5, a non-contact switch unit 6 with hand disinfection function, and a pull switch 7, as well as a remote controller 27. The remote controller 27 transmits commands related to opening and closing the sheet shutter 1 to the communication control unit 17 of the main control unit 15 via wireless communication, and may be, for example, a three-point remote control in which "up," "stop," and "down" are assigned to respective buttons, or a one-point remote control in which "up," "stop," and "down" are combined into one button. Alternatively, it may be a multi-remote control in which different operations of the sheet shutter 1 are assigned to multiple buttons.

[0061] [About the seat shutter opening and closing system] In a building 2 such as a factory or warehouse where a sheet shutter 1 is installed, it is sometimes desirable that the environment be isolated as much as possible from the external environment in terms of temperature, humidity, cleanliness, insect prevention, explosion prevention, etc. Therefore, as shown in Fig. 17, in a sheet shutter opening and closing system, it is preferable that a plurality of sheet shutters 1 are arranged on a path from an outer space 70 to an inner space 71 where an environment such as temperature, humidity, cleanliness, insect prevention, or explosion prevention is maintained. In other words, by separating the inner space 71 and the outer space 70 with a plurality of sheet shutters 1, the environment of the inner space 71 is easily maintained. The sheet shutter opening and closing system is a system in which a plurality of sheet shutters 1 are provided on a path from the outer space 70 to the inner space 71, and it is preferable that the main control unit 15 of the outer sheet shutter 1a provided on the outer space 70 side of the path controls to open the outer sheet shutter 1a when the inner sheet shutter 1b is closed, and the main control unit 15 of the inner sheet shutter 1b provided on the inner space 71 side of the outer sheet shutter 1a controls to open the inner sheet shutter 1b when the outer sheet shutter 1a is closed. In other words, if control is performed so that the inner sheet shutter 1b and the outer sheet shutter 1a are not opened at the same time, the outer space 70 and the inner space 71 are always separated by the sheet shutter 1, and the inner space 71 is further prevented from being affected by the environment of the outer space 70.

[0062] Furthermore, the communication control unit 17 of the main control unit 15 of the outer sheet shutter 1a and the communication control unit 17 of the main control unit 15 of the inner sheet shutter 1b are capable of wireless communication with each other, and if they communicate with each other about the open / closed state of the outer sheet shutter 1a and the inner sheet shutter 1b, there is no need to wire a communication cable between the outer sheet shutter 1a and the inner sheet shutter 1b, thereby improving installation efficiency.

[0063] Furthermore, the intermediate space 72 between the inner sheet shutter 1b and the outer sheet shutter 1a is preferably maintained at a higher pressure than the outer space 70. Specifically, air is introduced into the intermediate space 72 from the inner space 71, where the temperature, humidity, and / or cleanliness of the environment are controlled, thereby maintaining the air pressure in the intermediate space 72 higher than that of the outer space 70. As a result, when the outer sheet shutter 1a is opened, air flows from the intermediate space 72 to the outer space 70, preventing insects and dust in the air of the outer space 70 from entering the intermediate space 72. Preferably, the air pressure in the inner space 71 is the same as or higher than that of the intermediate space 72. If air flows from the inner space 71 to the intermediate space 72 when the inner sheet shutter is opened, the desired environment in the inner space 71 can be maintained even more effectively. The inner space 71 and the intermediate space 72 are preferably airtight spaces capable of maintaining their respective air pressures. Furthermore, the number of outer sheet shutters 1a and inner sheet shutters 1b is not limited to one each, and two or more outer sheet shutters 1a or inner sheet shutters 1b may be provided in parallel or in series on the path from the outer space 70 to the inner space 71. Even when a plurality of outer sheet shutters 1a or inner sheet shutters 1b are provided, the desired environment in the inner space 71 can be maintained by controlling the inner sheet shutters 1b and outer sheet shutters 1a so that they are not opened simultaneously.

[0064] It goes without saying that the embodiments of the present invention are not limited to the above-described embodiments, and can be modified as appropriate without departing from the scope of the concept of the present invention. [Industrial Applicability]

[0065] The sheet shutter and sheet shutter opening / closing system according to the present invention are suitable as sheet shutters and sheet shutter opening / closing systems used, for example, at entrances and exits for loading and transport vehicles in factories and warehouses, or at entrances and exits of stores, hospital facilities, and airport terminal buildings. [Explanation of symbols]

[0066] 1 Sheet shutter 2. Building 3 3-point switch unit (operation switch) 4. 1-point switch unit (operation switch) 5. Non-contact switch unit (operation switch) 6. Non-contact switch unit (operation switch) with hand sanitizer function 7 Pull switch (operation switch) 10 Sheet body 11 Winding drum 12 storage boxes 13 Opening and closing drive unit 14 Guide rail 15 Main control unit 17 Communication control section 18 Opening and closing control section 20 Wall 21 Ceiling 24 power outlets 62 Second non-contact sensor (non-contact sensor) 63 Chemical spray mechanism 70 Outside space 71 Inner Space 72 Intermediate Space 80 Operating cord

Claims

1. A sheet shutter that separates an opening in a building in an openable and closable manner, a flexible sheet body; a winding drum that is disposed above the opening and winds up the sheet body; an opening / closing drive unit that drives the winding drum to rotate in forward and reverse directions; guide rails provided at both ends of the opening for guiding the sheet body up and down; a main control unit including a communication control unit that receives a signal from an external device and an opening / closing control unit that controls the lifting and lowering of the sheet body based on information received by the communication control unit; an operation switch that transmits a command to open or close the sheet shutter to the communication control unit; Equipped with The operation switch is fixed inside the building, The sheet shutter is characterized in that the operation switch transmits the command to the communication control unit wirelessly.

2. 2. The sheet shutter according to claim 1, wherein the operation switch is fixed to a wall or ceiling of the building.

3. 2. The sheet shutter according to claim 1, wherein the operation switch is a wirelessly communicable pull switch that is suspended from a ceiling and that opens and closes by pulling an operating cord.

4. 2. The sheet shutter according to claim 1, wherein the operation switch is a switch unit capable of wireless communication, which is attached to a wall surface by adhesive or by screws.

5. The operation switch is A non-contact sensor; a chemical solution spraying mechanism that sprays a chemical solution when the non-contact sensor detects a detection target; a wireless communication unit that transmits a command to the main control unit to open and close the sheet shutter after the chemical solution spray mechanism has sprayed the chemical solution; The sheet shutter according to claim 1, further comprising:

6. 6. The sheet shutter according to claim 1, wherein the operation switch is supplied with power from a power outlet arranged on a wall, floor, or ceiling.

7. 6. The sheet shutter according to claim 1, wherein the operation switch is supplied with power from a battery disposed inside the sheet shutter.

8. A sheet shutter opening / closing system in which a plurality of the sheet shutters according to any one of claims 1 to 5 are provided on a path from an outer space to an inner space in which a predetermined environment is maintained, the plurality of sheet shutters include an outer sheet shutter provided on the path on the outer space side, and an inner sheet shutter provided on the inner space side of the outer sheet shutter, the main control unit of the outer sheet shutter controls to open the outer sheet shutter when the inner sheet shutter is in a closed state, the main control unit of the inner sheet shutter performs control to open the inner sheet shutter when the outer sheet shutter is in a closed state, A sheet shutter opening and closing system characterized in that the communication control unit of the main control unit of the outer sheet shutter and the communication control unit of the main control unit of the inner sheet shutter are capable of wireless communication with each other and communicate the open / closed states of the outer sheet shutter and the inner sheet shutter.

9. 9. The sheet shutter opening and closing system according to claim 8, wherein an intermediate space between the inner sheet shutter and the outer sheet shutter is maintained at a higher pressure than the outer space.

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