Shutter device

Abstract

To provide a vertically movable shutter device having improved heat shielding properties.SOLUTION: A shutter device divides an in-building space into two spaces using a plurality of panel members 21T, 21M, 21B. The panel members 21T, 21M, 21B have a metallic surface material 31 and a foamable fire resistive covering material 50 for covering the surface of the surface material 31. The foamable fire resistive covering material 50 is formed of a foamable fire resistive material. The foamable fire resistive covering material 50 is provided so as to close joint portions 36, 37 between the panel members 21T, 21M, 21B by foaming due to heat caused by a fire.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a vertically movable shutter device that divides the space within a building to prevent the spread of fire from one compartment to another. [Background technology]

[0002] Conventionally, shutter devices that divide and partition the space inside a building according to the situation have been known. In such shutter devices, as in Patent Document 1, for example, partitions for preventing the spread of fire are formed by a plurality of panel materials. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-274763 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the above-mentioned shutter device is required to have improved heat insulation properties as well as flame insulation properties in order to suppress the spread of fire and ensure an escape route in the event of a fire. [Means for solving the problem]

[0005] The shutter device that solves the above problem divides the space inside a building into two spaces using multiple panel materials. The panel materials have a metal surface material and a fire-resistant surface covering material that covers the surface of the surface material. Effect of the Invention

[0006] According to the present invention, it is possible to improve the heat insulating properties of a vertically movable shutter device. [Brief description of the drawings]

[0007] [Figure 1]FIG. 1 is a perspective view showing a schematic diagram of an embodiment of a shutter device. [Diagram 2] FIG. 2 is a diagram illustrating a schematic configuration of a shutter device. [Diagram 3] FIG. 2 is a diagram showing the cross-sectional structure of a panel material. [Figure 4] FIG. 1A is a schematic diagram showing the state in which the surface coating material has foamed on the fire side, and FIG. 1B is a schematic diagram showing the state in which the surface coating material has foamed on the non-fire side. [Diagram 5] FIG. 11 is a cross-sectional view showing a panel material according to a modified example. [Figure 6] FIG. 11 is a cross-sectional view showing a panel material according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] An embodiment of a shutter device will be described with reference to FIGS. 1 to 4. As shown in Fig. 1, the shutter device 20 is configured to be able to divide the space inside a building into two spaces. Specifically, the shutter device 20 divides the space 15 formed by the floor 11, the ceiling 12, and the wall 13 into two spaces with a plurality of panel materials 21 arranged in the vertical direction. Around the shutter device 20, the wall 13 is used, which has the ability to block the spread of fire.

[0009] The shutter device 20 is a vertically movable shutter device. The shutter device 20 has a storage state in which a plurality of panel materials 21 are stored in the ceiling space 17 (see FIG. 2 ), and a partition state in which the plurality of panel materials 21 partition the space 15. In the space 15, the plurality of panel materials 21 move along guide rails 22 that are provided on the wall 13 and extend in the vertical direction.

[0010] The shutter device 20 transitions from the stored state to the partitioned state as the panel materials 21 stored in the ceiling space 17 move in sequence to the space 15 through the opening 16 provided in the ceiling 12. The shutter device 20 transitions from the partitioned state to the stored state as the panel materials 21 arranged in the space 15 move in sequence to the ceiling space 17 through the opening 16 in the ceiling 12.

[0011] The shutter device 20 transitions between the stored state and the partition state by operating an operation panel 23 provided on the wall 13. In addition, the shutter device 20 transitions to the partition state when a predetermined condition is satisfied in the stored state, such as the occurrence of a fire.

[0012] As shown in FIG. 2, the shutter device 20 includes a control panel 25, an opening and closing device 26, and a fire detector 27. The control panel 25 is a device that controls the state transition of the shutter device 20. The control panel 25 is mainly composed of a microcontroller in which a processor, a memory, an input interface, an output interface, and the like are connected to each other via a bus. The control panel 25 acquires various signals, such as an operation signal from the operation panel 23 and a detection signal from the fire detector 27, via the input interface. The control panel 25 then executes various processes for controlling the state transition of the shutter device 20 based on the acquired various signals, as well as programs and various data stored in the memory. For example, the control panel 25 executes a process for moving the panel material 21 based on the operation of the operation panel 23.

[0013] The opening and closing device 26 is disposed in the ceiling space 17. The opening and closing device 26 is a device that moves the panel material 21 upon receiving a command from the control panel 25. The opening and closing device 26 is fixed to a partition wall 18 that partitions the ceiling space 17 above the wall 13. The partition wall 18 is formed of, for example, reinforced concrete and has flame-resistant and heat-resistant properties. The opening and closing device 26 is supported by a beam formed of a steel frame or reinforced concrete via the partition wall 18. The opening and closing device 26 has a pair of brackets that are provided to sandwich the multiple panel materials 21 in the longitudinal direction. The brackets support an electric motor that rotates forward or backward upon receiving a command from the control panel 25, a transmission mechanism that transmits the torque of the electric motor to each panel material 21, a guide mechanism that guides the movement of the panel material 21 in the ceiling space 17, and the like. The opening and closing device 26 may be fixed to a partition beam that partitions the ceiling space 17 and is formed of a steel frame or reinforced concrete instead of the partition wall 18.

[0014] The fire detector 27 detects a fire in the space 15. When the fire detector 27 detects a fire, it outputs a detection signal to the control panel 25. The control panel 25, which has received the detection signal, executes a process of transitioning the shutter device 20, which is in a stored state, to a compartment state in the event of a fire.

[0015] (Panel material) As shown in FIG. 3, the panel material 21 is divided into an intermediate panel material 21M, a bottom panel material 21B, and a top panel material 21T. The intermediate panel material 21M is the panel material 21 arranged between the bottom panel material 21B and the top panel material 21T. The bottom panel material 21B is the panel material 21 arranged in the lowest tier. The top panel material 21T is the panel material 21 arranged in the highest tier. In the following, when there is no need to distinguish between the intermediate panel material 21M, the bottom panel material 21B, and the top panel material 21T, they will simply be referred to as panel materials 21. In addition, in FIG. 3, the intermediate panel material 21M is indicated by a solid line, and the bottom panel material 21B and the top panel material 21T are indicated by a two-dot chain line.

[0016] Each panel material 21 has a hollow metallic surface material 31. The surface material 31 is produced by combining various members formed into desired shapes by extrusion processing of metal materials such as aluminum and steel, using various joining methods such as welding.

[0017] In the intermediate panel material 21M, the surface material 31 has an upper fitting protrusion 32, an upper fitting recess 33, a lower fitting protrusion , and a lower fitting recess . The upper mating protrusion 32 is provided so as to protrude upward from the upper left side in Fig. 3. The upper mating recess 33 is provided so as to cut out the upper right side in Fig. 3. The lower mating protrusion 34 is provided so as to protrude downward from the lower right side in Fig. 3. The lower mating recess 35 is provided so as to cut out the lower left side in Fig. 3.

[0018] In the partitioned state, the upper fitting protrusion 32 fits into the lower fitting recess 35 of the panel material 21 located at the upper tier with a joint portion 36 formed. The lower fitting protrusion 34 fits into the upper fitting recess 33 of the panel material 21 located at the lower tier with a joint portion 37 formed.

[0019] The intermediate panel material 21M has an upper seal material 38 and a lower seal material 39. The upper seal material 38 is provided at the base end of the upper fitting convex portion 32. The lower seal material 39 is provided at the base point of the lower fitting convex portion 34. The upper seal material 38 and the lower seal material 39 are formed from a fire-resistant material.

[0020] In the partitioned state, the upper seal material 38 seals the gap between itself and the upper panel material 21. The lower seal material 39 seals the gap between itself and the panel material 21 located in the lower layer.

[0021] The intermediate panel material 21M also has a setting block 40 that functions as a buffer between the intermediate panel material 21 and the adjacent panel material 21 in the vertical direction. The setting block 40 is provided adjacent to the upper seal material 38 or the lower seal material 39. In the intermediate panel material 21M shown in FIG. 3, the setting block 40 is provided adjacent to the upper seal material 38.

[0022] In the bottom panel material 21B, the surface material 31 has an upper fitting convex portion 32 and an upper fitting concave portion 33. When in the partitioned state, a lower fitting concave portion 35 and a lower fitting convex portion 34 of an intermediate panel material 21M arranged on the upper stage of the bottom panel material 21B fit into the upper fitting convex portion 32 and the upper fitting concave portion 33, respectively. In addition, an upper seal material 38 and a setting block 40 are provided on the bottom panel material 21B.

[0023] In addition, a bottom base 45 is joined to the lower end of the surface material 31 of the bottom panel material 21B. The bottom base 45 is produced by joining various members formed into a desired shape by extrusion processing of metal materials such as aluminum and steel. A bottom seal 46 is attached to the bottom base 45 to seal the gap between the floor 11 in the compartmented state.

[0024] In the top panel material 21T, the surface material 31 has a lower fitting protrusion 34 and a lower fitting recess 35. When in the partitioned state, the lower fitting protrusion 34 and the lower fitting recess 35 respectively fit with the upper fitting recess 33 and the upper fitting protrusion 32 of the intermediate panel material 21M arranged in the lower stage of the top panel material 21T. The top panel material 21T also has a lower seal material 39.

[0025] The panel material 21 has an intumescent fireproof coating material 50 that covers the surface of the surface material 31. The surface of the surface material 31 is a portion of the outer surface of the surface material 31 that is visible from the outside in a compartmented state when not covered by the intumescent fireproof coating material 50. The intumescent fireproof coating material 50 protects the surface material 31 by foaming when heated during a fire to form a carbonized insulating layer. The intumescent fireproof coating material 50 is also provided inside the joint parts 36, 37, i.e., on the surface that forms the joint parts 36, 37. It is preferable that the thickness of the intumescent fireproof coating material 50 that covers the surface that forms the joint parts 36, 37 is thicker than the thickness of the portion that covers the surface of the surface material 31 other than the joint parts 36, 37. The intumescent fireproof coating material 50 can be formed by applying or pasting an intumescent fireproof material. The foamable fireproof material may be, for example, a foamable fireproof paint such as SK Taica Coat (manufactured by SK Chemical Co., Ltd.: registered trademark) or a foamable fireproof sheet such as SK Fireproof Sheet (manufactured by SK Chemical Co., Ltd.: registered trademark). The foamable fireproof covering material 50 is preferably foamed to a thickness of 60 mm or more. More preferably, the foamable fireproof covering material 50 is foamed to a thickness of about 90 mm.

[0026] The panel material 21 may have a non-combustible heat insulating material 51 filled inside the surface material 31. The non-combustible heat insulating material 51 may be made of, for example, a plurality of calcium silicate boards, rock wool, Makibee (registered trademark) made by Nichias Corporation using heat-resistant rock wool, ceramic fiber, or the like.

[0027] (action) When a fire is detected by the fire detector 27, the shutter device 20 is controlled to the compartment state. Then, as shown in Fig. 4(a), first, on the fire side, the intumescent fire-resistant covering material 50 foams so as to cover the surface of the panel material 21 and to close the joints 37, forming a carbonized insulation layer 55. Then, as shown in Fig. 4(b), on the non-fire side, the intumescent fire-resistant covering material 50 foams so as to cover the surface of the panel material 21 and to close the joints 36, forming a carbonized insulation layer 55.

[0028] The effects of this embodiment will be described. (1) The panel material 21 constituting the shutter device 20 has a surface material 31 formed into a hollow shape by a metal material, and an intumescent fire-resistant covering material 50 that covers the surface of the surface material 31. As a result, in the event of a fire, the surface material 31 is covered by a carbonized insulating layer 55, so that thermal deformation of the surface material 31 can be suppressed. As a result, the heat insulation property of the shutter device 20 can be improved.

[0029] (2) The intumescent fire-resistant covering material 50 maintains a thin thickness until a fire breaks out. As a result, the heat insulation performance can be improved without impairing the design of the panel material 21 and, in turn, the shutter device 20. In addition, the heat insulation performance of the shutter device 20 can be adjusted by the thickness of the intumescent fire-resistant covering material 50 at the time of foaming.

[0030] (3) The intumescent fire-resistant covering material 50 is provided so that when it expands due to heat caused by a fire, the joints 36, 37 between the panel materials 21 are closed. This makes it possible to suppress a decrease in the heat insulation performance caused by the joints 36, 37.

[0031] (4) Furthermore, since the thickness of the intumescent fire-resistant coating material 50 is greater at the joints 36, 37 than at other locations, the decrease in heat insulation performance at the joints 36, 37 can be further suppressed.

[0032] (5) The intumescent fire-resistant coating material 50 is formed by applying an intumescent fire-resistant paint, so that the working time required for forming the intumescent fire-resistant coating material 50 can be shortened. In addition, the intumescent fire-resistant coating material 50 is formed by attaching an intumescent fire-resistant sheet, so that it is easy to adjust the thickness of the intumescent fire-resistant coating material 50 itself as well as the thickness of the carbonized insulation layer 55. The intumescent fire-resistant sheet is preferably used to form the intumescent fire-resistant coating material 50 in the joint portions 36, 37.

[0033] (6) The shutter device 20 is supported by a partition wall 18 or a partition beam made of steel or reinforced concrete in the ceiling space 17. This makes it easier for the shutter device 20 to maintain a state in which it is supported by the partition wall 18 or the partition beam even if a fire breaks out. As a result, the shutter device 20 is easier to maintain a partitioned state, i.e., a state in which the heat insulation properties of the shutter device 20 are maintained.

[0034] (7) By filling the inside of the surface material 31 with the non-flammable insulating material 51, the heat insulation properties of the panel material 21, and therefore the heat insulation properties of the shutter device 20, can be improved. (8) In the vicinity of the shutter device 20, non-combustible materials are used for the finishing of the floor 11, ceiling 12, and walls 13. This makes it difficult for heat caused by a fire to be transmitted from the floor 11, ceiling 12, and walls 13 to the panel material 21. As a result, the heat insulation properties of the shutter device 20 are more easily maintained.

[0035] This embodiment can be modified as follows: This embodiment and the following modifications can be combined with each other to the extent that there is no technical contradiction. The panel material 21 does not need to have the non-combustible heat insulating material 51 filled inside the surface material 31 .

[0036] As shown in Fig. 5, the surface material 31 of the panel material 21 does not have to be formed in a hollow shape. That is, the surface material 31 may be formed of, for example, an iron plate of a predetermined thickness. With such a configuration, the panel material 21 can be formed thin, and therefore the storability of the panel material 21 can be improved. Furthermore, the surface material 31 may be formed of a sheet material having fire resistance instead of an iron plate. With such a configuration, the weight of the surface material 31 can be reduced, and the load on the opening and closing device 26 can be reduced.

[0037] 6, the intumescent fire-resistant covering material 50 may be formed by laminating an intumescent fire-resistant material 61 onto a heat-resistant sheet material 60. As the sheet material 60, a sheet material having excellent heat resistance, such as a sheet material made of silica cloth or a sheet material made by continuously laminating alkaline earth silicate (AES) wool, may be used.

[0038] The outer shape of the surface material 31 is not limited to the shape described in the above embodiment as long as it seals the gaps between the surface materials 31 of the upper and lower panel materials 21. The shutter device 20 may be directly exposed to the space without having a ceiling space 17. Even in such a configuration, the function of forming the compartment is satisfied. Also, after forming the compartment, the entire shutter device 20 may be replaced. [Explanation of symbols]

[0039] 11...floor, 12...ceiling, 13...wall, 15...space, 16...opening, 17...ceiling space, 18...partition wall, 20...shutter device, 21...panel material, 21B...bottom panel material, 21M...middle panel material, 21T...top panel material, 22...guide rail, 23...operation panel, 25...control panel, 26...opening / closing device, 27...fire detector, 31...surface material, 32...upper mating convex portion, 33...upper mating concave portion, 34...lower mating convex portion, 35...lower mating concave portion, 36, 37...joint portion, 38...upper sealing material, 39...lower sealing material, 40...setting block, 45...bottom base, 46...bottom seal, 50...foamable fire-resistant coating material, 51...non-combustible insulation material, 55...carbonized insulation layer, 60...sheet material, 61...foamable fire-resistant material.

Claims

1. A vertically movable shutter device that divides a space inside a building into two spaces using multiple panel materials, The panel material has a metallic surface material and an intumescent fire-resistant covering material that covers the surface of the surface material and intumescents when heated in the event of a fire. Shutter device.

2. The intumescent fireproof coating material is provided so as to expand due to heat caused by a fire and seal the joints between the panel materials. The shutter device of claim 1 .

3. The intumescent fireproof coating material is formed so that the thickness of the portion covering the joint portion is greater than the thickness of the portion covering the portion other than the joint portion. The shutter device according to claim 2 .

4. The shutter device is supported by a partition wall or a partition beam that partitions the ceiling space, The partition walls or the partition beams are formed of steel or reinforced concrete. The shutter device of claim 1 .

5. The surface material is formed in a hollow shape, The panel material has a non-combustible heat insulating material inside the surface material. The shutter device according to any one of claims 1 to 4.

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