Inclined fire and smoke prevention horizontal sliding shutter device

Abstract

To provide an inclination-corresponding fireproof and smokeproof sliding shutter apparatus which can be installed at an inclined place, particularly even at a place where an inclined state and a horizontal state are continuous and does not affect an operation of the shutter apparatus even in the inclined state.SOLUTION: In a sliding shutter apparatus having a plurality of slats 10 made of a tabular metal, the slat 10 has an engaging part 101 at one lateral part and an engaged part 102 engaging with the engaging part 101 at the other lateral part, an upper end lid body 18 is fitted at an upper end side of the engaging part 101, a lower end lid body 19 is fitted at a lower end side of the engaged part 102 and the engaging part 101 can slide vertically to the engaged part 102.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a fire and smoke resistant horizontal sliding shutter device for use in an inclined position. [Background technology]

[0002] A known horizontal sliding shutter device is described in Patent Document 1.

[0003] The device described in Patent Document 1 is a horizontally sliding fire and smoke shutter device that uses slats formed by bending plate-shaped metal material. The slats used in the horizontally sliding fire and smoke shutter device are formed by bending plate-shaped metal material, and the slats have a first end with an engaging portion formed by the bending, and a second end with an engaging receiving portion formed by the bending, and the engaging portion at the first end is configured in a curled shape so as to engage with the engaging receiving portion of another connected slat, and the engaging receiving portion at the second end is configured in a curled shape with a larger diameter than the engaging portion so as to engage with the engaging portion of another connected slat, and a smoke-blocking core rod is inserted inside the curled engaging portion at the connecting portion where the slat engages with the other slat, and the connecting portion into which the smoke-blocking core rod is inserted is covered from the outside of both ends of the smoke-blocking core rod by a smoke-blocking cover (see Figure 3 in Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6401887 Summary of the Invention [Problem to be solved by the invention]

[0005] The shutter device described in Patent Document 1 has sufficient fire prevention and smoke prevention performance, but is not designed to be installed on sloping ground.

[0006] Therefore, if the shutter device described in Patent Document 1 is installed in an inclined position, all of the slats will be installed in an inclined state, and a load will be applied in an oblique direction. As a result, a large amount of load is applied to the lowest slat at an angle, which causes problems with the operation of the shutter device. Therefore, the problem that the present invention aims to solve is to provide a fire and smoke resistant horizontal sliding shutter device for inclination that can be installed in an inclined position, particularly in a position where an inclined position and a horizontal position are consecutive, and that does not interfere with the operation of the shutter device even in an inclined position. [Means for solving the problem]

[0007] The means for solving the problems of the present invention are as follows.

[0008] First, A horizontal sliding shutter device having a plurality of slats made of plate-shaped metal material, The slat has an engagement portion formed at a first end, which is one side portion, and an engagement receiving portion formed at a second end, which is the other side portion, the first end and the second end are formed by bending both sides of a metal material, The engaging portion at the first end is formed in a shape that engages with an engaging receiving portion of another adjacent slat, An upper end cover is attached to the upper end of the engagement portion to close the upper end, The engagement receiving portion at the second end is formed to have a larger diameter than the engagement portion of another adjacent slat so as to engage with the engagement portion, A lower end cover is attached to the lower end of the engagement receiving portion to close the lower end, The combination of the engagement portion at the first end and the engagement receiving portion at the second end forms a connection portion on both sides of the slat, At the connection portions formed on both sides of the slats, the engaging portion of the adjacent slat can slide vertically relative to the engaging receiving portion, An upper pulley mounting bracket for mounting the upper pulley to the slat is attached to the upper end side of the slat, The upper pulley is combined with an upper guide rail, and the device is adapted to accommodate inclinations, such as a fire and smoke resistant horizontal sliding shutter. Here, various shapes can be adopted for the engaging portion and the engaging receiving portion as long as they do not interfere with the movement of the adjacent slats. The upper end cover may be anything that closes the upper end side of the engaging portion, and may be equal to or larger than the size of the end face shape of the engaging portion.

[0009] Second, The engaging portion and the engaging receiving portion have a curled shape. The fire and smoke resistant horizontal sliding shutter device for tilting described in 1 above.

[0010] Third, A lower pulley mounting bracket for mounting the lower pulley to the slat is attached to the lower end side of the slat, The lower pulley is combined with a lower end guide rail. The fire and smoke resistant horizontal sliding shutter device for tilting as described in the first or second aspect. [Effects of the Invention]

[0011] According to the present invention, the following effects can be obtained.

[0012] In the present invention, the engaging portion that constitutes the connecting portion is structured so as to be vertically slidable relative to the engaging receiving portion, so that even when the slats are installed in an inclined position, each slat remains vertical. As a result, even in an inclined state, most of the load is applied vertically, which does not interfere with the operation of the shutter device, and it can be installed in places where the inclined state and the horizontal state are continuous. [Brief explanation of the drawings]

[0013] [Figure 1]FIG. 2 is a rear view of the tilt-compatible fire and smoke resistant horizontal sliding shutter device of the present invention. [Figure 2] FIG. 2 is an enlarged view of the lower end side of some of the slats in FIG. [Figure 3] FIG. 3 is a perspective view of FIG. 2. [Figure 4] FIG. 2 is an enlarged view of the upper end side of some of the slats in FIG. [Figure 5] FIG. 5 is a perspective view of FIG. [Figure 6] 1 is an explanatory diagram of an example of the installation state of the inclined fire and smoke prevention horizontal sliding shutter device of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the accompanying drawings, the same components are denoted by the same reference numerals, and duplicated explanations are omitted. It should be noted that the description here is one embodiment of the present invention, and the present invention is not limited to this embodiment. [Example]

[0015] The inclined fire and smoke resistant horizontal sliding shutter device of this embodiment, as shown in Figure 1, has a plurality of slats 10 made of long plate-shaped metal material, and has upper pulleys 12 attached to all of the slats 10 via upper pulley mounting brackets 11, and lower pulleys 14 attached to every other slat 10 via lower pulley mounting brackets 13.

[0016] As shown in Figures 2 and 3, the lower pulley mounting bracket 13 has lower pulleys 14 attached to both sides of the horizontal section, and is attached to the slat 10 by rivets 15 inserted into holes provided on the contact surface with the slat 10 located on both sides of the central notch in the vertical section.

[0017] As shown in Figures 4 and 5, the upper pulley mounting bracket 11 is in an inverted U-shape with the upper pulley 12 attached to the top, and is attached to the slat 10 by rivets 15 inserted into holes provided on the contact surfaces with the slat 10 on both sides of the inverted U-shape.

[0018] As shown in Figures 2 to 5, an engagement portion 101 is formed at a first end, which is one side of the slat 10, and an engagement receiving portion 102 that engages with the engagement portion 101 is formed at a second end, which is the other side. The first end and the second end are formed by bending both sides of a metal material into a curled shape.

[0019] As shown in FIGS. 4 and 5, the engaging portion 101 at the first end is formed in a curled shape so as to engage with an engaging receiving portion 102 of another adjacent slat 10. A metal upper end cover 18 having the same size (diameter) as the engaging portion 101 is attached by welding to the upper end side of the engaging portion 101 so as to close the upper end side.

[0020] As shown in Figures 2 and 3, the engagement receiving portion 102 at the second end is formed in a curled shape with a larger diameter than the engagement portion 101 so as to engage with the engagement portion 101 of another connected slat 10. A metal bottom cover 19 having the same size (diameter) as the engagement receiving portion 102 is attached by welding to the bottom end side of the engagement receiving portion 102 so as to close the bottom end side.

[0021] As shown in FIG. 1, a connection portion 16 is formed on each side of the slat 10 by combining the engagement portion 101 at the first end and the engagement receiving portion 102 at the second end.

[0022] At the connection portions 16 formed on both sides of the slat 10, the engaging portion 101 of the adjacent left slat 10 is configured to be able to slide vertically relative to one engaging receiving portion 102.

[0023] As shown in Figure 6, the inclined fire and smoke resistant horizontal sliding shutter device of this embodiment can be installed in locations where horizontal and inclined conditions are mixed, and even in an inclined condition, each slat remains vertical. In FIG. 6, 20 denotes an upper guide rail and 21 denotes a lower guide rail.

[0024] Although not shown in the drawings, an upper pulley 12 is combined with the upper guide rail 20, and a lower pulley 14 is combined with the lower guide rail. Also, illustration of the operating motor, storage section, etc. of the shutter device is omitted.

[0025] In the inclined fire and smoke resistant horizontal sliding shutter device shown in Figure 6, the connecting portions 16 formed on both sides of the slats are such that the engaging portions 101 can slide vertically relative to the engaging receiving portions 102, as shown in Figure 1. Therefore, in areas where the slats are in an inclined state that continues from a horizontal state, the slats 10 slide in accordance with the inclined state while their position is regulated by the upper guide rail 20 on the upper end side. Therefore, even in an inclined state, the load of each slat 10 is applied in a substantially vertically downward direction, so that the operation of the shutter device is not hindered.

[0026] As shown in FIG. 3, the lower end of the engagement receiving portion 102 is closed by the lower end cover 19, so that even when the shutter is closed, it can exhibit sufficient smoke blocking performance to meet building standards. [Explanation of symbols]

[0027] 10 slats 101 engagement portion 102 engagement receiving portion 11 Upper pulley mounting bracket 12 Upper pulley 13 Lower pulley mounting bracket 14 Lower pulley 15 Rivets 16 Connecting part 18 Upper end lid body 19 Lower end cover body 20 Upper guide rail 21 Lower guide rail

Claims

1. A horizontal sliding shutter device having a plurality of slats made of plate-shaped metal material, The slat has an engaging portion formed at a first end, which is one side portion, and an engaging receiving portion formed at a second end, which is the other side portion, the first end and the second end are formed by bending both sides of a metal material, The engaging portion at the first end is formed in a shape that engages with an engaging receiving portion of another adjacent slat, An upper end cover is attached to the upper end of the engagement portion to close the upper end, The engaging portion at the second end is formed to be larger than the engaging portion of another slat connected thereto so as to engage with the engaging portion. A lower end cover is attached to the lower end of the engagement receiving portion to close the lower end, The engagement portion at the first end and the engagement receiving portion at the second end are combined to form connection portions on both sides of the slat, At the connection portions formed on both sides of the slats, the engaging portion of the adjacent slat can slide vertically relative to the engaging receiving portion, An upper pulley mounting bracket for mounting the upper pulley to the slat is attached to the upper end side of the slat, The upper pulley is combined with an upper guide rail, and the device is adapted to accommodate inclinations, such as a fire and smoke resistant horizontal sliding shutter.

2. The engaging portion and the engaging receiving portion have a curled shape. The fire and smoke resistant horizontal sliding shutter device for tilting according to claim 1.

3. A lower pulley mounting bracket for mounting the lower pulley to the slat is attached to the lower end side of the slat, The lower pulley is combined with a lower end guide rail. The fire and smoke resistant horizontal sliding shutter device for tilting according to claim 1 or 2.

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