Tension-type vertical smoke barrier

Abstract

To provide a tension-type smoke barrier capable of reducing the weight and improving design of the left / right of an incombustible sheet by shortening the width of traction devices.SOLUTION: A tension-type smoke barrier 100 comprises an incombustible sheet 30, and traction devices 10 and 20 for hauling the incombustible sheet 30 from the left and right. The traction devices 10 and 20 includes tension covers 11 and 21, tension bars 12 and 22 moving inside the tension covers 11 and 21, fixing means for fixing the incombustible sheet 30 to the tension bars 12 and 22, and transfer means for moving the tension bars 12 and 22. The fixing means and the transfer means are so disposed as to overlap with each other in a direction orthogonal to the traction direction of the incombustible sheet 30.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a hanging smoke barrier, and more particularly to a tension-type hanging smoke barrier comprising a non-combustible sheet and a traction device for pulling the non-combustible sheet from the left and right. [Background technology]

[0002] Traditionally, large commercial facilities (office buildings, department stores, etc.) have installed smoke barriers to prevent the movement of smoke that occurs on the ceiling in the event of a fire, thereby protecting the lives of office workers, store clerks, and visitors working inside. According to the Building Standards Act, buildings with a total floor area or number of staircases exceeding a certain level are required to install smoke barriers made of non-combustible materials, and many smoke barriers (also called partition barriers) have been installed.

[0003] These smoke barriers were originally made of glass, but in the event of an earthquake, broken glass could fall from the ceiling on shoppers fleeing the store, causing injuries to the head and other parts of the body. Therefore, non-flammable sheets began to be used instead of glass.

[0004] Examples of smoke barriers using non-combustible sheets include panel-type smoke barriers in which the non-combustible sheet is surrounded by a panel frame, and tension-type smoke barriers in which pulling devices are provided on both the left and right ends of the non-combustible sheet to apply tension and correct wrinkles and slack in the non-combustible sheet.

[0005] Among these, as an example of a tension-type hanging smoke barrier, Patent Document 1 describes an invention relating to a device for correcting wrinkles that occur in a sheet of a sheet-type hanging smoke barrier. Figure 5 is a cross-sectional view showing an outline of the wrinkle correction device described in Patent Document 1. Hereinafter, the wrinkle correction device will be referred to as a traction device, and the terms and symbols will be changed as appropriate in the explanation.

[0006] A conventional tension-type vertical smoke barrier pulling device 40 includes a tension cover 41 consisting of two tension covers 41a and 41b, a tension bar 42 that moves within the tension cover 41, a sheet retainer 46 that serves as a fixing means for fixing the non-combustible sheet 30 to the tension bar 42, and bolts and nuts 44 and 45 that serve as a moving means for moving the tension bar 42. The tension cover 41 is fixed to a wall or the like with drill screws 8. The non-combustible sheet 30 is inserted through a slit 47 between the tension covers 41a and 41b, and is sandwiched between the tension bar 42 and the sheet retainer 46 and fixed with screws 43. The tension bar 42 is moved by the bolts and nuts 44 and 45 to pull the non-combustible sheet 30. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Utility Model Registration No. 3216129 Summary of the Invention [Problem to be solved by the invention]

[0008] In the conventional tension-type hanging smoke barrier pulling device 40 shown in Figure 5, the fixing means for fixing the non-combustible sheet 30 to the tension bar 42 (the fixing portion between the tension bar 42 and the sheet retainer 46) and the moving means for moving the tension bar 42 (bolts and nuts 44, 45) are aligned in a straight line in the pulling direction of the non-combustible sheet 30. As a result, the width of the tension cover 41 (the width in the left-right direction in Figure 5) becomes long, the weight increases, and the design of the left and right sides of the non-combustible sheet is also reduced.

[0009] The present invention solves the above-mentioned conventional problems by providing a tension-type smoke barrier that reduces the width of the traction device to make it lighter, and also improves the design of the left and right sides of the non-combustible sheet. [Means for solving the problem]

[0010] In order to solve the above problems, the tension-type smoke-proof hanging wall of the present invention is a tension-type smoke-proof hanging wall composed of a non-combustible sheet and a traction device that traction the non-combustible sheet from the left and right, characterized in that the traction device has a tension cover, a tension bar that moves within the tension cover, a fixing means that fixes the non-combustible sheet to the tension bar, and a moving means that moves the tension bar, and the fixing means and the moving means are arranged so as to overlap in a direction perpendicular to the traction direction of the non-combustible sheet.

[0011] Preferably, the fixing means is a sheet presser that sandwiches the non-combustible sheet between itself and the tension bar.

[0012] Preferably, the moving means is a bolt and nut. [Effects of the Invention]

[0013] The tension-type vertical smoke barrier of the present invention is composed of a non-combustible sheet and a traction device that traction the non-combustible sheet from the left and right. The traction device has a tension cover, a tension bar that moves within the tension cover, a fixing means that fixes the non-combustible sheet to the tension bar, and a moving means that moves the tension bar. The fixing means and the moving means are arranged so that they overlap in a direction perpendicular to the pulling direction of the non-combustible sheet. Therefore, the fixing means and the moving means are not aligned in a straight line in the pulling direction of the non-combustible sheet, which shortens the width of the tension cover, reduces weight, and improves the design of the non-combustible sheet on the left and right.

[0014] Furthermore, if the fixing means is a sheet presser that clamps the non-combustible sheet between itself and the tension bar, the non-combustible sheet can be reliably fixed with a simple structure.

[0015] Furthermore, when the moving means is a bolt and nut, the tension bar can be reliably moved with a simple structure.

[0016] Thus, according to the present invention, it is possible to provide a tension-type smoke barrier that can reduce the width of the traction device to make it lighter, and also improve the design of the left and right sides of the non-combustible sheet. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view showing the installation state of a tension-type hanging smoke barrier according to an embodiment of the present invention. [Figure 2] 2 is a cross-sectional view of FIG. 1 taken along line aa. [Figure 3] 1. FIG. [Figure 4] FIG. 2 is an enlarged cross-sectional view showing the traction device according to the present embodiment. [Figure 5] FIG. 10 is an enlarged cross-sectional view showing a conventional traction device. DETAILED DESCRIPTION OF THE INVENTION

[0018] Next, a tension-type hanging smoke barrier according to an embodiment of the present invention will be described with reference to Figures 1 to 4. The tension-type hanging smoke barrier according to this embodiment is composed of a non-combustible sheet and a traction device that pulls the non-combustible sheet from the left and right, and is hung from a ceiling rail installed on the ceiling.

[0019] FIG. 1 is a perspective view showing the installation state of a tension-type hanging smoke barrier 100 according to this embodiment, FIG. 2 is a cross-sectional view taken along line aa in FIG. 1, and FIG. 3 is a cross-sectional view taken along line bb in FIG.

[0020] As shown in Figures 1 and 2, a plurality of joists 2 are hung on the ceiling of the facility, and ceiling rails 3 are attached to the underside of the joists 2 via ceiling boards 1 to suspend tension-type hanging smoke barriers 100. A non-combustible sheet 30 is attached to the ceiling rails 3 with screws 6.

[0021] The tension-type vertical smoke barrier 100 is composed of a non-combustible sheet 30 and pulling devices 10, 20 that pull the non-combustible sheet 30 from the left and right. The non-combustible sheet 30 is stretched between the left and right pulling devices 10, 20, and is pulled from the left and right by the pulling devices 10, 20 to correct any wrinkles or slack.

[0022] 3, the traction devices 10 and 20 are fixed to a base 9 via a wall 7 by drill screws 8. The left and right traction devices 10 and 20 will be described in detail below.

[0023] 4 is an enlarged cross-sectional view showing the traction device 10 according to this embodiment. Note that the traction device 20 has a similar configuration, and therefore a description thereof will be omitted.

[0024] The traction device 10 has a tension cover 11 consisting of two tension covers 11a and 11b, a tension bar 12 that moves within the tension cover 11, a sheet presser 16 that is a fixing means for fixing the non-combustible sheet 30 to the tension bar 12, and bolts and nuts 14 and 15 that are moving means for moving the tension bar 12.

[0025] Tension cover 11a is a long member with a roughly U-shaped cross section, and one side is fixed to wall 7 with drill screws 8. Tension cover 11b is a long member with a roughly L-shaped cross section. Two tension covers 11a and 11b are combined to form tension cover 11, a long member with a square-shaped cross section, and a slit 17 for inserting non-combustible sheet 30 is formed at the butt joint between the two tension covers 11a and 11b.

[0026] The tension bar 12 is a long member formed with multiple surfaces (12a, 12b, 12c). Surface 12a is a bolt insertion surface through which the bolt 14 is inserted and is perpendicular to the bolt 14. One end of surface 12a slides along the inner wall of the tension cover 11b as the noncombustible sheet 30 is pulled, and the other end is bent and connected to surface 12b. Surface 12b is a noncombustible sheet fixing surface that abuts the sheet presser 16 and into which the screw 13 is threaded, and is parallel to the pulling direction of the noncombustible sheet 30. Surface 12c extends from surface 12b toward the tension cover 11a parallel to surface 12a, and the end of surface 12c slides along the inner wall of the tension cover 11a as the noncombustible sheet 30 is pulled. Both the tension cover 11 and the tension bar 12 are long members that extend vertically when installed.

[0027] The non-combustible sheet 30 is inserted into the slit 17 between the tension covers 11 a and 11 b , sandwiched between the surface 12 b of the tension bar 12 and the sheet presser 16 , and fixed by the screws 13 .

[0028] In addition, a bolt 14 is inserted through the surface 12a of the tension bar 12, and its base end is fixed to the inner wall of the tension cover 11b on the wall 7 side. By rotating the nut 45, the tension bar 12 is moved to pull the non-combustible sheet 30.

[0029] Here, in the pulling device 10, the sheet presser 16 (particularly the fixing portion between the tension bar 12 and the sheet presser 16) which is the fixing means and the bolts and nuts 14, 15 (particularly the tip of the bolt 14 on the non-combustible sheet side) which are the moving means are arranged so as to overlap in a direction (vertical direction in FIG. 4) perpendicular to the pulling direction (horizontal direction in FIG. 4) of the non-combustible sheet 30. In other words, since the fixing means and the moving means are not aligned in a straight line in the pulling direction of the non-combustible sheet 30, the width of the tension cover 11 (horizontal direction in FIG. 4) is shorter than in the conventional example.

[0030] The tension-type vertical smoke barrier 100 according to this embodiment is comprised of a non-combustible sheet 30 and a traction device 10 (20) that traction the non-combustible sheet 30 from the left and right. The traction device 10 (20) has a tension cover 11, a tension bar 12 that moves within the tension cover 11, a sheet retainer 16 that serves as a fixing means for fixing the non-combustible sheet 30 to the tension bar 12, and bolts and nuts 14, 15 that serve as a moving means for moving the tension bar 12. The sheet retainer 16 and the bolts and nuts 14, 15 are arranged so that they overlap in a direction perpendicular to the pulling direction of the non-combustible sheet 30. Therefore, the sheet retainer 16 and the bolts and nuts 14, 15 are not aligned in a straight line in the pulling direction of the non-combustible sheet 30, which shortens the width of the tension cover 11, thereby reducing its weight and enhancing the design of the non-combustible sheet on both sides.

[0031] Furthermore, by using the sheet presser 16 that sandwiches the non-combustible sheet 30 between itself and the tension bar 12 as the fixing means, the non-combustible sheet 30 can be fixed reliably with a simple structure.

[0032] Furthermore, by using the bolts and nuts 14 and 15 as the moving means, the tension bar 12 can be reliably moved with a simple structure.

[0033] In this way, the tension-type hanging smoke barrier according to this embodiment can reduce the width of the traction device to make it lighter, and can also improve the design of the left and right sides of the non-combustible sheet.

[0034] The tension-type hanging smoke barrier according to the embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and various other modifications are possible.

[0035] For example, the fixing means and the moving means may have other configurations as long as they are arranged so as to overlap in a direction perpendicular to the pulling direction of the noncombustible sheet. [Explanation of symbols]

[0036] 1 Ceiling board 2. No-en 3 Ceiling rail 4 bis 5 Bottom plate 6 screws 7. Wall 8 drill screws 9. Base 10 Traction device 11 Tension cover 12 tension bar 13 screws 14 volts 15 Nut 16 Sheet holder 17 Slit 20 Traction device 30 Non-flammable sheet 40 Traction device 41 Tension cover 42 tension bar 43 screws 44 volts 45 Nut 46 Sheet holder 47 Slit 100 Tension-type smoke barrier

Claims

1. A tension-type smoke barrier comprising a non-combustible sheet and a traction device that pulls the non-combustible sheet from the left and right, The traction device includes a tension cover, a tension bar that moves within the tension cover, a fixing means that fixes the noncombustible sheet to the tension bar, and a moving means that moves the tension bar, The fixing means and the moving means are arranged so as to overlap in a direction perpendicular to the pulling direction of the noncombustible sheet, The tension bar has a first orthogonal surface orthogonal to the pulling direction of the noncombustible sheet, a parallel surface bent from the first orthogonal surface and connected to the noncombustible sheet in the pulling direction, and a second orthogonal surface bent from the parallel surface in the opposite direction to the first orthogonal surface and connected to the noncombustible sheet in the pulling direction, A tension-type smoke-proof hanging wall, characterized in that as the non-combustible sheet is pulled, the end of the first orthogonal surface and the end of the second orthogonal surface slide along the inner wall of the tension cover.

2. 2. The tension-type hanging smoke barrier according to claim 1, wherein the fixing means is a sheet holder that sandwiches the non-combustible sheet between the tension bar and the parallel surfaces of the tension bar.

3. 3. The tension-type hanging smoke barrier according to claim 1, wherein the moving means is a bolt nut including a bolt inserted through the first orthogonal surface of the tension bar.

Images