Switchgear

Abstract

To provide a shutter capable of suppressing the spread of fire from an area demarcated by the shutter.SOLUTION: A shutter includes an opening and closing body for opening and closing an opening at a building entrance and at a passageway in a building. The opening and closing body is constituted of a refractory insulation member having refractory insulation and is configured so that when the opening is closed, the fireproof heat insulating member shields a space between a front side space and a rear side space defined by the opening and closing body.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an opening and closing device, and more particularly to an opening and closing device that can improve the fire prevention performance of a fire compartment defined by an opening and closing body. [Background technology]

[0002] Conventionally, as one of the opening and closing devices, a slat-type shutter device has been known which has a shutter curtain with fire protection function, which is made by connecting multiple long metal plates called slats and serves as an opening and closing body to form a fire compartment (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-115511 Summary of the Invention [Problem to be solved by the invention]

[0004] However, since many of the components that make up the shutter device, such as the slats that make up the shutter curtain, are made of metal, there is a risk that the radiant heat from the slats may cause the fire to spread outside the fire compartment. Therefore, in order to solve the above-mentioned problems, an object of the present invention is to provide an opening and closing device that can suppress the spread of fire from an area partitioned by the opening and closing device. [Means for solving the problem]

[0005] As a configuration of an opening / closing device for solving the above problem, there is provided an opening / closing device including an opening / closing body for opening and closing an opening provided at an entrance / exit of a building or a passageway inside the building, The opening and closing body is When the opening is closed, Fire-resistant and heat-insulating sheet Fire-resistant insulation materials Covering the entire front and rear surfaces of the opening and closing body, The opening and closing body separates the front space from the rear space. Structure It was successful. According to this configuration, the spread of fire from the area partitioned by the opening and closing device can be suppressed, and the fire prevention performance of the fire compartment can be improved. Also, The fire-resistant insulating member may be configured so that when the opening of the opening / closing body is closed, the extended portion of the opening / closing body is placed in the opening, or so that when the opening of the opening / closing body is closed, the extended portion of the opening / closing body is placed on both the front and rear sides of the opening / closing body, and when the opening of the opening / closing body is opened, the rolled-up portion of the opening / closing body is stored from both the front and rear sides of the opening / closing body. The fireproof heat insulating member may also be made of a fireproof heat insulating sheet, a foam heat insulating sheet, a foam heat insulating paint, or a combination of a fireproof heat insulating sheet and a foam heat insulating sheet. Furthermore, when the fire-resistant heat-insulating member is made of a foam heat-insulating sheet or foam heat-insulating paint, it is advisable to provide a protective member on the exposed surface. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 1 is a plan view of a switching device according to the present invention. [Figure 2] 1 is a longitudinal cross-sectional view of a shutter curtain and a winding mechanism, and a longitudinal cross-sectional view and a partially enlarged view of a slat. [Figure 3] 10A and 10B are diagrams showing other configurations of a sheet-like shutter curtain. [Figure 4] 10A and 10B are diagrams showing other configurations of a sheet-like shutter curtain. [Figure 5] This is a diagram showing a case where the guide rail is provided with fire-resistant and heat-insulating properties. [Figure 6] FIG. 1 is a plan view of an opening and closing device configured with a slat-type shutter curtain. [Figure 7] 1A and 1B are longitudinal cross-sectional views of a slat-type shutter curtain, a winding mechanism, and a slat. [Figure 8] 10A and 10B are diagrams showing other installation forms of the fireproof and heat insulating member. [Figure 9] FIG. 10 is a schematic diagram showing another installation form of the fireproof and heat insulating member. [Figure 10] FIG. 10 is a schematic diagram showing another installation form of the fireproof and insulating unit. [Figure 11] FIG. 10 is a schematic diagram showing another installation form of the fireproof and insulating unit. [Figure 12] FIG. 10 is a schematic diagram showing another installation form of the refractory insulation body. [Figure 13]10A and 10B are diagrams showing other installation forms of the refractory heat insulator. [Figure 14] 10A and 10B are diagrams showing another embodiment of the opening and closing device. [Figure 15] 10A and 10B are diagrams showing another embodiment of the opening and closing device. [Figure 16] FIG. 1 is a longitudinal cross-sectional view of a slat provided with a fire-resistant insulating member. [Figure 17] 10A and 10B are diagrams showing other installation forms of the fireproof and insulating members and the protective members in the slats. [Figure 18] FIG. 2 is a longitudinal cross-sectional view of a panel having a fire-resistant heat-insulating member that constitutes a panel curtain. [Figure 19] FIG. 1 is a vertical cross-sectional view of a door component panel of an overhead sliding door equipped with a fire-resistant insulating member. [Figure 20] FIG. 1 is a vertical cross-sectional view of a door component panel of an overhead sliding door equipped with a fire-resistant insulating member. [Figure 21] FIG. 1 is a vertical cross-sectional view of a door component panel of an overhead sliding door equipped with a fire-resistant insulating member. [Figure 22] FIG. 1 is a longitudinal cross-sectional view of a sheet curtain equipped with a fire-resistant heat insulating member. [Figure 23] FIG. 1 is a vertical cross-sectional view of a door panel equipped with a fire-resistant heat insulating member. DETAILED DESCRIPTION OF THE INVENTION

[0007] The present invention will be described in detail below through embodiments of the invention. However, the following embodiments do not limit the invention according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention, and include configurations that are selectively adopted.

[0008] [Embodiment 1] FIG. 1 is a plan view of an opening and closing device according to this embodiment, and FIG. 2 is a schematic diagram of a vertical cross section of a shutter curtain and a winding mechanism. As shown in Fig. 1, a shutter device 10 as an opening / closing device is installed in an opening 12 formed in a structure skeleton 11. The structure skeleton 11 is, for example, an exterior wall that separates the inside and outside of a structure such as a house, building, warehouse, or factory, or an interior wall that separates an internal space within the structure. The opening 12 is opened in the structure skeleton 11 and is formed as a space that connects the inside and outside.

[0009] The shutter device 10 generally comprises guide rails 20;20 erected at a distance from each other on both sides of the width of the opening 12, a shutter curtain 30 as an opening / closing body that moves along the longitudinal direction of the guide rails 20;20 to open or close the opening 12, a shutter case 84 provided above the opening 12 and the guide rails 20;20, and a winding shaft 82 provided inside the shutter case 84 to wind up the shutter curtain 30.

[0010] In this specification, the width direction refers to the direction (left and right direction) perpendicular to the opening and closing (up and down) direction of the shutter curtain 30, and the "depth direction" refers to the thickness (front and back) direction of the shutter curtain 30. Furthermore, the "winding direction" refers to the direction in which the shutter curtain 30 rises along the guide rail 20 and opens the opening 12, and the "releasing direction" refers to the direction in which the shutter curtain 30 falls along the guide rail 20 and closes the opening 12.

[0011] As shown in FIG. 1, the guide rails 20, 20 are erected with a portion of them buried in the structure body 11 so that their longitudinal direction is perpendicular to the structure body 11. The guide rails 20, 20 are hollow members with an internal structure having a roughly U-shaped cross section. The guide rails 20, 20 are arranged so that the U-shaped openings face each other. Both widthwise ends of a shutter curtain 30 (described later) are inserted into the guide rails 20, 20. As a result, the widthwise ends of the shutter curtain 30 are guided in the opening and closing direction (up and down) by the guide rails 20, 20.

[0012] As shown in Fig. 2, the shutter curtain 30 is a so-called sheet curtain made of sheet-like members. The shutter curtain 30 is made of, for example, a fireproof and heat-insulating sheet. A fireproof and heat-insulating sheet is made of a single sheet or multiple overlapping sheets that are both fire-resistant and highly heat-insulating despite being in a sheet shape.

[0013] The shutter curtain 30 can be wound up and unwound by a winding mechanism (not shown) housed inside the shutter case 14. The shutter curtain 30 can be wound up and unwound by, for example, rotating the winding shaft 82 driven by a motor, or by a manual winding mechanism that rotates and winds the winding shaft 82 using a biasing means such as a coil spring, and can be selected as appropriate.

[0014] In this way, by using the sheet-like shutter curtain 30 having fire-resistant and heat-insulating properties, it is possible to prevent the spread of fire outside the compartment by radiating heat from the slats, just like a shutter curtain made of metal slats, etc. Note that the material of the sheet-like shutter curtain 30 is not limited to a fire-resistant and heat-insulating sheet.

[0015] 3 is a diagram showing another configuration of the sheet-like shutter curtain 30. For example, a foam sheet can be used as the material for the sheet-like shutter curtain 30. A foam sheet is a sheet that is configured to form a heat insulating layer by foaming and expanding the coating agent on its surface at high temperatures. As mentioned above, since the coating agent on the surface of the foam sheet functions, when forming a shutter curtain 30, it is preferable to use a laminated structure in which both sides of the foam sheet are sandwiched between protective sheets, as shown in Figure 3.

[0016] The protective sheet 42 is a member for preventing contact between the foam sheets when the sheets are rolled up to form the shutter curtain 30. The protective sheet 42 can be formed, for example, into a rectangular shape of approximately the same size as the foam sheet so as to cover the entire surface of the foam sheet, and can be overlaid on the foam sheet and integrated with a fixing means such as an adhesive.

[0017] The protective sheet 42 may be made of a sheet-like material such as a fire-resistant, highly breathable mesh or film. A highly breathable mesh refers to a mesh size that does not interfere with the function of the foam sheet. The protective sheet 42 preferably has strength sufficient to prevent damage to the foam sheet when it is rolled up to form the shutter curtain 30, and flexibility sufficient to accommodate deformation during roll-up.

[0018] Furthermore, the protective sheet 42 does not necessarily have to be arranged to cover the entire surface of the foam sheet; for example, the protective sheet 42 may be in the form of a strip of a predetermined width, and this strip-shaped protective sheet 42 may be arranged at predetermined intervals in the width direction of the shutter curtain 30, reaching from one end to the other end in the opening and closing direction of the shutter curtain 30.

[0019] Furthermore, the protective sheet 42 is not limited to being provided on both sides of the foam sheet, but may be provided on only one side.

[0020] In this way, even if the shutter curtain 30 is replaced with a fire-resistant heat-insulating sheet, the spread of fire to the outside of the compartment can be prevented.

[0021] Fig. 4 is a diagram showing another configuration of a sheet-like shutter curtain. As shown in Fig. 4, the sheet-like shutter curtain 30 may be configured as a single shutter curtain 30 by overlapping a fireproof heat insulating sheet and a foam sheet.

[0022] As described above, the shutter device has fire-resistant and heat-insulating properties, which can prevent the spread of fire and facilitate evacuation in the event of a fire.

[0023] In addition, by covering the winding shaft 82 that winds up the shutter curtain 30 with a fire-resistant heat-insulating sheet, deformation of the winding shaft due to the heat of a fire can be suppressed, improving the effectiveness of blocking flames and heat.

[0024] Figure 5 shows the case where the guide rails are provided with fire-resistant and heat-insulating properties. Figure 5(a) shows the case where the guide rails 20;20 are provided in the opening 12 formed in the structure skeleton 11 as shown in Figure 1, Figure 5(b) shows the case where the guide rails 20;20 are provided on the wall surface of the structure skeleton 11, and Figure 5(c) shows the case where the guide rails 20;20 are embedded in the structure skeleton 11 that forms the opening 12. The fireproof and insulating sheet having the above-mentioned fireproof and insulating performance may also be provided on the guide rails 20;20, for example, as shown in each drawing of Figure 5. Specifically, it is preferable to provide the sheet so as to cover the entire or part of the outer surface exposed from the structure body 11, including the guide portion 22 along which the shutter curtain 30 moves up and down. Note that the fireproof and insulating sheet provided on the surface of the guide rails 20;20 does not have to be the same as the fireproof and insulating sheet that constitutes the shutter curtain 30.

[0025] Preferably, the fireproof and heat-insulating sheet is provided so that the shutter curtain 30 comes into contact with part or all of the fireproof and heat-insulating sheet provided on the guide rails 20;20.

[0026] In this way, by providing a fire-resistant insulation sheet on the guide rails 20;20, the heat of a fire can be suppressed from being transmitted to the shutter curtain 30 through the guide rails 20;20, which are generally made of steel, thereby preventing the spread of fire.

[0027] Instead of the fireproof heat-insulating sheet, a foam sheet or foam paint may be applied to the guide rails 20, 20. Foam paint is a paint with heat-insulating properties that foams when heated. In this way, by providing a foam sheet or foam paint on the guide portion 22 of the guide rail 20;20, the gap between the guide rail 20;20 and the shutter curtain 30 is blocked by the foaming of the foam sheet or foam paint, thereby suppressing heat convection beyond the defined range.

[0028] Furthermore, by using similar means on the lining and seating parts that do not have heat insulation properties, the effect of blocking flames and heat caused by a fire can be improved.

[0029] The above-mentioned technology has been described as a sheet-type shutter curtain 30, but it can also be applied to a slat-type shutter curtain 30.

[0030] FIG. 6 is a plan view of an opening and closing device configured with a slat-type shutter curtain 30, and FIG. 7 is a vertical cross-sectional view of the shutter curtain, a winding mechanism, and a vertical cross-sectional view of a slat 31. As shown in Fig. 6, a slat-type shutter device (hereinafter sometimes simply referred to as a shutter device) 10 serving as an opening and closing device is installed in an opening 12. A structural body 11 is, for example, an exterior wall that separates the inside and outside of a structure such as a house, building, warehouse, or factory, or an interior wall that separates the internal space within the structure. The opening 12 is opened in the structural body 11 and is formed as a space that connects the inside and outside.

[0031] The shutter device 10 generally comprises guide rails 20;20 erected at a distance from each other on both sides of the width of the opening 12, a shutter curtain 30 as an opening / closing body that moves along the longitudinal direction of the guide rails 20;20 to open or close the opening 12, a shutter case 14 provided above the opening 12 and the guide rails 20;20, a winding mechanism 50 installed in the storage space inside the shutter case 14, and fire-resistant insulating members 40 provided on the front and rear sides of the shutter curtain 30.

[0032] As shown in FIG. 6, the guide rails 20, 20 are erected with a portion of them buried in the structure body 11 so that their longitudinal direction is perpendicular to the structure body 11. The guide rails 20, 20 are hollow members with an internal structure having a roughly U-shaped cross section. The guide rails 20, 20 are arranged so that the U-shaped openings face each other. Both widthwise ends of the shutter curtain 30, which will be described later, are inserted into the guide rails 20, 20. As a result, the widthwise ends of the shutter curtain 30 are guided in the opening and closing direction (up and down) by the guide rails 20, 20.

[0033] As shown in Fig. 7, the shutter curtain 30 is made up of a plurality of slats 31. Each slat 31 is made of a metal such as steel, stainless steel, or aluminum, and is a plate-like member extending along the width direction of the opening 12. Curved curled portions 32 and 33 are formed at the end (upper end) in the winding direction and the end (lower end) in the unwinding direction of each slat 31, respectively.

[0034] The curled portion 32 curves radially inward of the cylindrical wheel 52 that constitutes the winding mechanism 50, and engages with the curled portion 33 formed on the slat 31 adjacent in the winding direction. The curled portion 33 curves radially inward of the wheel 52, and engages with the curled portion 32 formed on the slat 31 adjacent in the unwinding direction. As a result, the curled portions 32, 33 of the adjacent slats 31 are engaged with each other, and are rotatably connected to each other.

[0035] The winding mechanism 50 comprises left and right brackets 15;15 that form part of the shutter case 14, a shaft 51 installed between the left and right brackets 15;15, wheels 52;52 that can rotate in the winding direction and the unwinding direction in synchronization with the rotation of the shaft 51, and a motor (not shown) that rotates the shaft 51 in the winding direction or the unwinding direction.

[0036] The shaft 51 is a support column extending in the width direction of the guide rails 20, 20, and both ends thereof are rotatably supported by holding means (not shown) provided on the brackets 15, 15. A driven wheel 53 connected to a connecting member 55 such as an endless chain or belt is provided around the axis of one end of the shaft 51. The driven wheel 53 is connected via the connecting member 55 to a driving wheel provided on the output shaft of a motor (not shown), and the rotational force of the motor is transmitted to the shaft 51 via the driving wheel, connecting member 55, and driven wheel 53.

[0037] The wheels 52;52 are cylindrical metal members provided at a predetermined interval from the shaft 51. The wheels 52;52 are fitted onto the shaft 51 via a fitting hole (not shown) opened in the center, and rotate freely around the shaft 51. The wheels 52;52 are connected to each other by a plurality of winding members 54. The winding members 54 are supports extending parallel to the shaft 51, and both ends are fitted into connecting holes (not shown) opened at equal intervals in the circumferential direction around the fitting hole of the wheels 52;52 as the center.

[0038] Although the winding mechanism 50 is an electric winding mechanism 50 having a motor, it may also be a manual winding mechanism using a biasing means such as a coil spring inserted around the axis of the shaft 51.

[0039] The fire-resistant insulating member 40 is formed in a rectangular shape that imitates the shape of the shutter curtain 30 when viewed in a plane, and is attached to the shutter curtain 30, for example, by fixing one side corresponding to the width dimension of the shutter curtain 30 to the front and rear sides of the main body 34 of the slat 31 that is located furthest from the winding direction using a fixing means such as an adhesive, and aligning the other side along the winding direction of the shutter curtain 30.

[0040] The fire-resistant insulating member 40 is attached to the shutter curtain 30 as described above, and its length dimensions in the width direction and winding direction are preferably set so as to cover the entire front and rear sides of the opening 12 when the shutter curtain 30 closes the opening 12.

[0041] Furthermore, by attaching the fire-resistant insulating members 40;40 to the shutter curtain 30, a mechanism for winding up and unwinding the fire-resistant insulating members 40;40 is not required, and the fire-resistant insulating members 40;40 can be automatically positioned and stored as the shutter curtain 30 is opened and closed.

[0042] When the fire-resistant heat insulating members 40;40 are fixed to the slats 31 using an adhesive, it is advisable to use a fire-resistant and durable adhesive to prevent the members from falling off due to heat during a fire or over time.

[0043] The operation of the shutter device having the above configuration will be described below. As shown in Fig. 7(a), when the shutter curtain 30 opens the opening 12 (fully open state), the motor is driven and controlled by operating an operation panel (not shown) to rotate the shaft 51 in the unwinding direction, and the wheel 52 rotates in response to the rotation of the shaft 51, and the shutter curtain 30 stacked on the outer circumferential surface of the wheel 52 is unwound one after another together with the fireproof heat insulating members 40;40. Then, as shown in Fig. 7(b), the wheel 52 continues to rotate in the unwinding direction, and the entire opening 12 is closed by the shutter curtain 30 (fully closed state), and the fireproof heat insulating members 40;40 are disposed on the front and rear sides of the shutter curtain 30.

[0044] 7(b) in which the shutter curtain 30 closes the opening 12 (fully closed state), when the motor is controlled to drive in the reverse direction and the shaft 51 rotates in the winding direction, the wheel 52 rotates in response to the rotation of the shaft 51, and the shutter curtain 30 is gradually wound up along the outer circumferential surface of the wheel 52 together with the fireproof and insulating materials 40;40, opening the opening 12. Then, as shown in FIG. 7(a), when the wheel 52 continues to rotate in the winding direction and the shutter curtain 30 is wound up by more than the circumferential length of the wheel 52, the shutter curtain 30 wound up from the second turn onwards is wound up together with the fireproof and insulating materials 40;40 while being stacked on top of the shutter curtain 30 that was wound up together with the fireproof and insulating materials 40;40 during the first turn, and the entire opening 12 is opened (fully open state).

[0045] By providing the fireproof and insulating member 40 to the shutter device in this way, the shutter device can be endowed with fireproof and insulating properties, and it is possible to prevent the spread of fire and facilitate evacuation in the event of a fire through the slats 31. The fireproof and insulating member 40 provided alongside the shutter curtain 30 is not limited to being on both the front and rear sides, but may be on either the front or rear side.

[0046] Fig. 8 is a diagram showing another installation form of the fireproof heat insulating member 40. In addition, although the fireproof heat insulating member 40 has been described as being installed so as to be in direct contact with the shutter curtain 30, it is also possible to interpose the above-mentioned protective sheet 42 between the shutter curtain 30 and the fireproof heat insulating member 40, as shown in Fig. 8.

[0047] In this way, by interposing the protective sheet 42, damage to the fireproof and heat-insulating member 40 due to interference between the slats 31 when the slat-type shutter curtain 30 is rolled up can be avoided.

[0048] In this embodiment, the shutter curtain 30 has been described as a slat type, but the configuration of the shutter curtain 30 can be applied to any shutter device in which the opening and closing body has a winding structure, such as a panel type or a sheet type. Also, the fireproof and insulating member 40 may be a foam sheet instead of a fireproof and insulating sheet.

[0049] Fig. 9 is a schematic diagram showing another installation form of the fireproof insulation member 40. As shown in Fig. 9, the fireproof insulation member 40 can be configured as a fireproof insulation unit 80 that includes, for example, a winding device. In the following explanation, the term fireproof insulation body A will collectively refer to those that are provided in association with the fireproof insulation sheet, such as the above-mentioned fireproof insulation sheet or foam sheet alone, a fireproof insulation sheet or foam sheet combined with a protective sheet 42, a fireproof insulation sheet combined with a foam sheet, or a fireproof insulation sheet, foam sheet, and protective sheet 42. The fireproof insulation unit 80 can be composed of a fireproof insulation A, a winding shaft 82 that winds up the fireproof insulation A, a bearing not shown that supports the winding shaft 82 so that it can rotate freely, a winding spring not shown that applies a spring force to the winding shaft 82 in the direction in which the winding shaft 82 winds up the fireproof insulation A, and a case 84 that houses these.

[0050] The fireproof insulation body A is formed, for example, in a rectangular shape that can cover the entire opening 12 in which the shutter device 10 is installed, and can be stored in the case 84 in a state where it is wound around the winding shaft 82 by the biasing force of the winding spring.

[0051] As shown in Fig. 9, the fireproof insulation units 80 can be arranged, for example, on the front and rear sides of the shutter curtain 30 within the shutter case 14. Each of the fireproof insulation units 80 on the front and rear sides is fixed within the shutter case 14 so that the winding shaft 82 of the fireproof insulation A is parallel to the axis of the shaft 51 of the winding mechanism 50 of the shutter curtain 30. The fireproof insulation A wound around the winding shaft 82 is pulled out from each of the fireproof insulation units 80 on the front and rear sides. This pulled-out side (hereinafter referred to as the pulled-out end) is fixed to the front and rear sides of the base plate 35 by fixing means not shown, and is incorporated as part of the shutter device 10.

[0052] The operation when configured as a fireproof and insulating unit 80 will be described below. When the opening is closed by the shutter curtain 30 as shown in Fig. 9(a) from a state in which the opening is open as shown in Fig. 9(b), the shutter curtain 30 is unwound, whereby the fireproof and insulating body A is pulled out from the winding shaft 82, and the fireproof and insulating body A having fireproof and insulating function can be arranged on the front and rear sides of the shutter curtain 30. Furthermore, when the shutter curtain 30 closes the opening as shown in Figure 9(a) and then opens the opening as shown in Figure 9(b), the shutter curtain 30 is wound up onto the winding shaft 82, which releases the pull on the fireproof insulation A by the seat plate 35, and the fireproof insulation A is wound up onto the winding shaft 82 without sagging due to the spring force of the winding spring.

[0053] Fig. 10 is a schematic diagram showing another installation form of the fireproof and heat-insulating unit 80. The fireproof and heat-insulating unit 80 does not necessarily have to be housed inside the shutter case 14, and may be attached to the underside of the shutter case 14, for example, as shown in Fig. 10.

[0054] FIG. 11 is a schematic diagram showing another installation form of the fireproof and heat-insulating unit 80. In FIG. When providing fireproof insulation A on the front and rear sides of the shutter curtain 30, two fireproof insulation units 80 are provided on the front and rear sides of the shutter curtain 30, but for example, as shown in Figure 11, it is also possible to provide fireproof insulation A on the front and rear sides of the shutter curtain 30 using one fireproof insulation unit 80. In this case, a roller 86 extending along the width direction of the seat plate 35 is provided on the underside of the seat plate 35 so as to be freely rotatable, and the fireproof insulation body A pulled out from the fireproof insulation unit 80 is passed through the roller 86, and the pulled-out end of the fireproof insulation body A is attached to the underside of the shutter case 14. Even with this configuration, the fireproof heat insulator A can be wound up and pulled out in conjunction with the winding up and pulling out of the shutter curtain 30 without sagging.

[0055] FIG. 12 is a schematic diagram showing another installation configuration of the fireproof insulation A. As shown in FIG. 12(a), the base plate 35 is hollow and box-shaped. Inside the base plate 35 are provided the fireproof insulation A, a winding shaft 82 for winding up the fireproof insulation A, a bearing (not shown) for rotatably supporting the winding shaft 82, and a winding spring (not shown) for applying a biasing force to the winding shaft 82 in the direction in which the winding shaft 82 winds up the fireproof insulation A, thereby forming a fireproof insulation unit 80. In other words, one fireproof insulation unit 80 described above can be attached to the lower end of the slat 31 in place of the plate-shaped base plate 35. In this case, the pull-out end of the fireproof insulation A can be fixed to the underside of the shutter case 14 or the like by a fixing means (not shown). While FIG. 12(a) illustrates an example in which the fireproof insulation A is provided on the rear side of the shutter curtain 30, it may also be provided on the front side.

[0056] Also, as shown in Figure 12(b), two fireproof and insulating units 80 may be housed in a hollow box-shaped base plate 35, and fireproof and insulating bodies A may be provided on the front and rear sides of the shutter curtain 30. As shown in Figures 12(a) and (b), even when the fireproof insulation unit 80 is configured, the fireproof insulation body A can be rolled up and pulled out in conjunction with the rolling up and pulling out of the shutter curtain 30 without sagging.

[0057] Fig. 13 is a diagram showing another installation form of the fireproof thermal insulator A. In the above-described embodiment, the fireproof thermal insulator A is in the form of a single sheet that can be wound around the winding shaft 82 and fed out, but this is not limitative and, for example, the fireproof thermal insulator A may be formed to be foldable by accordion folding as shown in Fig. 13.

[0058] As shown in Figure 13, by forming the fireproof thermal insulator A by accordion folding, it becomes possible to expand and contract in the direction of folding. In this case, for example, the shape of the base plate 35 is made to be a box with an opening at the top, and the fireproof thermal insulator A folded by accordion folding is housed inside this. Then, the bottommost folded piece is fixed to the base plate 35 by adhesive or the like, and the topmost folded piece is fixed to the underside of the shutter case 14 by adhesive or the like.

[0059] In the accordion-folded configuration, the bottom and top pieces move apart, causing the curtain to expand in the folding direction, and the bottom and top pieces move closer together, causing the curtain to contract in the folding direction. Therefore, as shown in FIG. 13(b), when the shutter curtain 30 is rolled up and the shutter curtain 30 is unrolled from a state in which the opening 12 is open, the base plate 35 gradually moves away from the shutter case 14. In conjunction with this movement, the fireproof thermal insulator A unfolds and extends. Then, as shown in FIG. 13(a), when the shutter curtain 30 completely closes the opening 12, the entire front and rear sides of the shutter curtain 30 are covered with the fireproof thermal insulator A.

[0060] 13(a), the shutter curtain 30 is unrolled and then rolled up from a state in which the opening 12 is closed, so that the seat plate 35 gradually approaches the shutter case 14. In conjunction with this approach, the fireproof heat insulator A gradually contracts as the shutter curtain 30 is folded. Then, as shown in FIG. 13(b), when the shutter curtain 30 is rolled up and the opening 12 is completely opened, the fireproof heat insulator A is stored in the seat plate 35 in its most folded state.

[0061] In this way, by making the fireproof insulation body A foldable by accordion folding, a winding mechanism for winding up the fireproof insulation body A is not required, and the fireproof insulation body A can be easily installed on the shutter device 10. The structure of the fireproof insulation A that provides expansion and contraction functionality is not limited to accordion folding, and the fireproof insulation A may be formed to have a structure that allows expansion and contraction, such as a pantograph or honeycomb.

[0062] In the above embodiment, in order to impart fire-resistant insulation functionality to a shutter curtain 30 that includes metal and is configured to be retractable, such as a slat type, the fire-resistant insulation A is configured so that the entire front side, rear side, etc. of the shutter curtain 30 is covered with a single fire-resistant insulation A, but this is not limited to this.

[0063] Fig. 14 is a diagram showing another embodiment of the shutter device 10. The shutter device 10 shown in Fig. 14 may be configured to include, for example, a fireproof heat insulator A covering the entire area of ​​the shutter curtain 30, and fireproof heat insulators A;A covering each of the side walls 12B;12B that form the opening 12 between the fireproof heat insulator A covering the entire area of ​​the shutter curtain 30 and the shutter curtain 30.

[0064] In this case, the fireproof insulation A covering the entire rear side of the shutter curtain 30 may be formed, for example, so as to reach from the ceiling to the floor of the opening 12. The fireproof insulation unit 80A that winds up and pays out this fireproof insulation A may be attached, for example, to the shutter case 14 near the ceiling of the case panel 14A that faces the space partitioned by the shutter curtain 30, preferably to the case 84 of the fireproof insulation unit 80A so as to contact the ceiling wall 12A of the opening 12.

[0065] The fireproof heat insulator A covering the side wall 12B may be formed, for example, so as to reach the floor surface from the case panel 14B facing the floor surface in the shutter case 14. The fireproof heat insulator unit 80B that winds and unwinds the fireproof heat insulator A may be attached, for example, to the case panel 14B facing the floor surface.

[0066] A seat plate 85 that comes into contact with the floor is provided at the extending end of the fireproof insulation body A of each fireproof insulation unit 80A; 80B. The seat plate 85 is connected to the seat plate 35 of the shutter curtain 30 by a connecting means not shown. This allows the fireproof insulation body A of the fireproof insulation units 80A; 80B to be extended and retracted in conjunction with the opening and closing movement of the shutter curtain 30.

[0067] By providing the fireproof and heat-insulating units 80A and 80B in the shutter device 10 in this way, a three-dimensional heat-shielding space can be formed in the opening 12, which can suppress the spread of fire from the area partitioned by the opening and closing device and improve the fire resistance of the fire compartment. It can also be easily applied to existing shutter devices 10.

[0068] For example, in FIG. 14, the fireproof and heat-insulating unit 80A is attached to the case panel 14A of the shutter case 14 so that the entire area of ​​the shutter curtain 30 is covered by a single fireproof and heat-insulating body A, but this is not limited to this.

[0069] 15A and 15B are diagrams showing other configurations of the shutter device 10. For example, as shown in Fig. 15A, fireproof and heat-insulating units 80 each having a fireproof and heat-insulating body A formed with a width dimension shorter than the width direction length dimension of the opening 12 may be arranged in the width direction to cover the entire area of ​​the shutter curtain 30. In this case, it is advisable to arrange the refractory and heat insulating units 80 in a staggered pattern as shown in FIGS. 15(b) and 15(c) so that no gaps are generated between adjacent refractory and heat insulating units 80.

[0070] Then, by connecting the seat plates 85 provided on the fireproof insulation bodies A of each fireproof insulation unit 80 by a connecting means and also connecting them to the seat plate 35 of the shutter curtain 30, the fireproof insulation bodies A of all the fireproof insulation units 80 can be unwound and wound up in synchronization with the opening and closing operation of the shutter curtain 30. As shown in FIG. 14, a fireproof and heat-insulating unit 80 may be provided so as to cover the side wall 12B, and may be provided selectively as appropriate.

[0071] Fig. 16 is a vertical cross-sectional view of a slat 31. For example, as shown in Fig. 16, each of the slats 31 constituting a slat-type shutter curtain 30 may be configured to have fire-resistant and heat-insulating properties.

[0072] As shown in Figure 16, each slat 31 has a fireproof insulation member 40 and a protective member 42 on the front surface 31A and rear surface 31B of the main body portion 34, which is formed as a flat surface. The fireproof insulation member 40 can be, for example, an intumescent fireproof sheet or an intumescent paint. Here, the fireproof insulation member 40 will be described as an intumescent fireproof sheet. The fireproof insulation member 40 is formed, for example, in a strip shape with a width dimension similar to that of the slat 31 and a vertical dimension shorter than the vertical dimension of the main body portion 34 between the curled portions 32 and 33 of the slat 31.

[0073] When the heat of a fire causes the fireproof and insulating material 40 to reach a predetermined temperature (for example, about 250°C), it starts to foam and forms a carbonized layer. This carbonized layer functions as a heat insulating layer, making it possible to suppress a rise in temperature of the slats 31.

[0074] The protective member 42 is made of, for example, a mesh sheet or film, and is placed on top of the fireproof insulation member 40 so as to cover the fireproof insulation member 40 provided on the front surface 31A and rear surface 31B of the slat 31. The protective member 42 is, for example, a strip-like member whose width is approximately the same as that of the fireproof insulation member 40, or whose length is set so as not to extend beyond both ends of the slat 31, and whose vertical dimension is longer than that of the fireproof insulation member 40.

[0075] The material of the protective member 42 is preferably one that can withstand temperatures higher than the operating temperature of the fireproof insulating member 40. The mesh size is preferably one that avoids damage to the fireproof insulating member 40 when it is rolled up on the wheel 52 by the opening and closing operation of the shutter curtain 30, and has fire resistance that can withstand the heat during a fire. In this way, by overlapping the protective member 42 on the fireproof insulating member 40, damage to the fireproof insulating member 40 can be prevented when the slats 31 interfere with each other as the shutter curtain 30 is rolled up and extended.

[0076] The protective member 42 is not limited to a mesh-like member, and the fireproof and heat-insulating member 40 may be protected by a mesh-like sheet or film with no openings.

[0077] The fireproof and heat-insulating member 40 and the protective member 42 are fixed to the slats 31 by a fixing means such as an adhesive. It is preferable to use a fire-resistant adhesive so that the members do not fall off from the slats 31 due to the heat in the event of a fire.

[0078] Fig. 17 is a diagram showing another installation form of the fireproof heat insulating member 40 and the protective member 42 on the slat 31. For example, the fireproof heat insulating member 40 and the protective member 42 may be installed only on the front side as shown in Fig. 17(a), or may be installed only on the rear side as shown in Fig. 17(b).

[0079] In addition, the fire-resistant insulating member 40 is not limited to the shutter curtain 30 described above, which is composed of multiple slats 31, but may also be a panel curtain made up of multiple flat panels, or a sheet curtain made up of a sheet of non-flammable resin, etc.

[0080] Fig. 18 is a longitudinal cross-sectional view of a panel that constitutes a panel curtain. When providing a fireproof insulation member 40 on a panel 60 that constitutes a panel curtain, for example, as shown in Fig. 18(a), the fireproof insulation member 40 may be directly adhered to the front and rear surfaces of the panel 61, and a protective member 42 may be adhered and fixed on top of the fireproof insulation member 40 adhered and fixed to the panel 60 so as to protect the fireproof insulation member 40 from interference between the panels when the panel 61 is rolled up. Also, as shown in Fig. 18(b), the fireproof insulation member 40 and the protective member 42 may be attached to either the front or rear surface of the panel 61. The fireproof heat insulating member 40 mentioned here may be a fireproof heat insulating sheet, a foam fireproof sheet, a foam paint, or the like.

[0081] Furthermore, the form of the opening and closing device is not limited to one in which an opening and closing body such as a shutter curtain 30 made up of multiple slats or a panel curtain made up of multiple panels is housed in a shutter case provided above the opening, but may also be an overhead sliding door type in which the opening and closing body is housed by sliding it upward and rearward.

[0082] 19 to 21 are longitudinal cross-sectional views of a door component panel of an overhead sliding door equipped with a fireproof and insulating member 40. The overhead sliding door is constructed by connecting a plurality of door component panels 71 formed in a rectangular shape that is elongated along one side in the width direction, like a panel curtain, for example. As shown in FIGS. 19 and 20, such a door component panel 71 has upper and lower frames 72 and 73 extending in the width direction, and an intermediate frame 76 extending in the width direction on the other side of a panel plate 74, one side of which is formed in a substantially flat shape as a design surface. The door component panel 71 is formed in a state in which the upper and lower frames 72 and 73 and the intermediate frame 76 are exposed.

[0083] When one surface is formed as a decorative surface in this way, the decorative surface is the front surface facing outdoors, and the rear surface faces indoors. In this case, the fireproof and insulating member 40 can be provided on the rear surface. Furthermore, as shown in Figure 19, when the rear surface has simple irregularities, the fireproof and insulating member 40 can be attached, for example, to the intermediate frame 76 on the rear surface between the upper and lower frames 72 and 73.

[0084] Furthermore, as shown in Figure 20, when there are folded pieces 72A; 73A extending from the upper and lower frames 72; 73 so as to face each other, the fireproof insulation member 40 may be attached so as to bridge the folded pieces 72A; 73A so as to have a hollow space S between the panel board 74 and the fireproof insulation member 40.

[0085] Furthermore, as shown in FIG. 21, when the rear surface of the panel plate 74 of the door component panel 71 has complex irregularities, a foaming fireproof paint as the fireproof and heat-insulating member 40 may be applied to the rear surface of the door component panel 71.

[0086] FIG. 22 is a longitudinal cross-sectional view of a sheet curtain. The fireproof heat insulating member 40 can also be applied to a shutter device that uses a sheet curtain as an opening / closing body. When providing the fireproof heat insulating member 40 on a sheet 81 constituting a sheet curtain, for example, as shown in FIG. 22(a), the fireproof heat insulating member 40 can be directly bonded to the front and rear surfaces of the sheet 81, and a protective member 42 can be bonded and fixed on top of the fireproof heat insulating member 40 bonded and fixed to the sheet 81 so as to protect the fireproof heat insulating member 40 from interference between the sheets when the sheet 81 is rolled up. Also, as shown in FIG. 22(b), the fireproof heat insulating member 40 and the protective member 42 may be attached to either the front or rear surface of the sheet 81.

[0087] FIG. 23 is a vertical cross-sectional view of a door panel equipped with a fire-resistant and heat-insulating member 40. As shown in FIG. The opening and closing body in the opening and closing device is not limited to a shutter curtain or a panel curtain, and the fireproof heat insulating member 40 may also be provided on a door or partition as an opening and closing device. For example, fire doors have a fire-resistant function to form fire compartments, but because they are generally made of metal, there is a risk that in the event of a fire, the radiant heat from the door could cause the fire to spread to areas outside the compartment. Even in such a case, it is preferable to provide the fireproof insulation member 40 on the front and rear door surfaces of the door surface 93 of the door leaf 91 so as to cover the entire door surface. When providing the fireproof insulation member 40 on the door leaf 91, for example, as shown in Figure 23(a), the fireproof insulation member 40 may be directly adhered to the front and rear surfaces of the door surface 93 of the door leaf 91, and a protective member 42 may be adhered and fixed on top of the fireproof insulation member 40. Furthermore, as shown in Figure 23(b), the fireproof insulation member 40 and the protective member 42 may be attached to either the front or rear surface of the panel 61. The fireproof heat insulating member 40 used here can be the above-mentioned fireproof heat insulating sheet, intumescent fireproof sheet, intumescent paint, or the like.

[0088] As explained above, a fire-resistant insulating member 40 is provided on an opening / closing body provided in an opening / closing device that opens and closes an opening, and when the opening / closing body closes the opening, the fire-resistant insulating member 40 is positioned so as to shield the space on the front side and the space on the rear side partitioned by the opening / closing body, thereby making it possible to suppress the spread of a fire caused by the opening / closing body. [Explanation of symbols]

[0089] 10 shutter device, 12 opening, 14 shutter case, 20 guide rail, 30 shutter curtain, 31 slat, 40 Fire-resistant insulating components, 42 Protective components, 44 Insulating materials.

Claims

1. An opening and closing device having an opening and closing body that opens and closes an opening, When the opening / closing body closes the opening, An opening and closing device characterized in that a sheet-like fireproof insulation material having fireproof and insulating properties covers the entire front and rear surfaces of the opening and closing body, shielding the space on the front side from the space on the rear side partitioned by the opening and closing body.

2. The opening and closing device described in Claim 1, characterized in that the fire-resistant insulating member is arranged in the opening by extending the opening and closing body when the opening of the opening and closing body is closed.

3. The fireproof and insulating member is As the opening of the opening / closing body is closed, the extended portion of the opening / closing body is disposed on both the front side and the rear side of the opening / closing body, 2. The opening and closing device according to claim 1, wherein the wound portion of the opening and closing body is retracted from both the front side and the rear side of the opening and closing body as the opening of the opening and closing body is opened.

4. 4. The opening and closing device according to claim 1, wherein the fireproof and heat-insulating member is a fireproof and heat-insulating sheet.

5. 4. The opening and closing device according to claim 1, wherein the fireproof and heat-insulating member is made of a foam heat-insulating sheet.

6. 3. The opening and closing device according to claim 2, wherein the fireproof and heat-insulating member is formed by stacking a fireproof and heat-insulating sheet and a foam heat-insulating sheet.

7. 7. The opening and closing device according to claim 5, further comprising a protective member provided over the foam insulation sheet to protect the foam insulation sheet.

Images