JP6124077B2 - Smoke barrier - Google Patents

Description

  The present invention relates to a smoke-proof hanging wall.

  The Building Standards Law makes it easy to evacuate by temporarily blocking and preventing carbon monoxide and other toxic gases generated in the event of a fire and the smoke containing them from flowing and diffusing into corridors and upper floors. In addition, in order to secure the time required for evacuation, it is stipulated that a smoke-proof section is provided in a predetermined area.

  For example, in office buildings and shopping malls, install smoke-proof hanging walls made of incombustible material in a plate shape so that they protrude downward from the ceiling surface while being supported by a ceiling base such as a field edge or a field edge receiver. A technique of forming a smoke-proof section with this smoke-proof hanging wall is frequently used (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3).

Japanese Patent Laid-Open No. 9-10346 JP-A-9-328838 JP 2007-82759 A

  On the other hand, conventional smoke-proof hanging walls are made of non-combustible materials such as glass plates and calcite plates, and are very expensive. There was still room for improvement.

  In view of the above circumstances, an object of the present invention is to provide a low-cost and lightweight smoke-proof wall.

  In order to achieve the above object, the present invention provides the following means.

  The smoke-proof hanging wall of the present invention is a smoke-proof hanging wall that is suspended downward from the ceiling surface to form a smoke-proof section, is formed of a steel plate, and is attached to the ceiling base and the ceiling base. A hanging wall mounting portion that is interposed between the ceiling material and the ceiling base material, and an upper end is connected to the hanging wall mounting portion, and is suspended downward from the ceiling surface to prevent smoke. It is characterized by comprising a drooping wall main body part that forms a partition and a folded part that is obliquely bent so as to be bent upward from the lower end of the dripping wall main body part.

  In the smoke-proof hanging wall of the present invention, for example, by forming the smoke-proof hanging wall using a steel plate such as a Galvalume steel plate, a stainless steel plate, a galvanized steel plate, a general mild steel plate, a coated steel plate, or a colored steel plate, The cost can be reduced compared to a conventional smoke-proof hanging wall using the like.

  Further, it is formed using a steel plate, and further includes a hanging wall mounting portion, a hanging wall main body portion, and a folded portion, and the hanging wall mounting portion is sandwiched between a ceiling base and a ceiling material (ceiling panel), for example, on the ceiling surface side The smoke-proof hanging wall can be easily installed by driving screws into the ceiling material, the hanging wall mounting portion, and the ceiling base. For this reason, compared with the conventional smoke-proof dripping wall, it becomes possible to aim at cost reduction also in construction cost.

  Further, since the folded portion is obliquely installed so as to be bent upward from the lower end of the drooping wall main body portion, the lower end side of the drooping wall main body portion forming the smoke-proof section can be reinforced with the folded portion, for example, the thickness Even when a steel plate having a thickness of about 1 mm or less is used, distortion or the like can be prevented from occurring on the lower end side of the drooping wall main body, and the appearance can be prevented from being impaired.

It is a perspective view which shows the state which installed the smoke-proof hanging wall which concerns on one Embodiment of this invention in the ceiling part. It is a left view which shows the smoke-proof hanging wall which concerns on one Embodiment of this invention. It is a right view which shows the smoke-proof hanging wall which concerns on one Embodiment of this invention. It is a front view which shows the smoke-proof hanging wall which concerns on one Embodiment of this invention. It is a rear view which shows the smoke-proof hanging wall which concerns on one Embodiment of this invention. It is a top view which shows the smoke-proof hanging wall which concerns on one Embodiment of this invention. It is a bottom view which shows the smoke-proof hanging wall which concerns on one Embodiment of this invention. It is a figure which shows the state which installed the smoke-proof hanging wall which concerns on one Embodiment of this invention in the ceiling part. It is a figure which shows the state which installed the smoke-proof hanging wall which concerns on one Embodiment of this invention in the ceiling part, and is a figure which shows the junction part of the edge parts of an adjacent smoke-proof hanging wall. It is a perspective view which shows the junction part of the edge part and pillar of the smoke-proof hanging wall which concerns on one Embodiment of this invention. It is sectional drawing which shows the junction part of the edge part and pillar of the smoke-proof hanging wall which concerns on one Embodiment of this invention.

  Hereinafter, with reference to FIGS. 1 to 11, a smoke-proof hanging wall according to an embodiment of the present invention will be described.

  First, in the present embodiment, for example, a smoke-proof section is formed by projecting downward from a ceiling surface of a building such as an office building, a shopping mall, a school, a hospital, or a production facility. It relates to smoke barriers that prevent and deter toxic gas diffusion.

  Moreover, in this embodiment, as shown in FIG. 1, it demonstrates as the ceiling surface 1 (ceiling part 2) being formed with the suspended ceiling. Specifically, the ceiling part 2 of the building of the present embodiment includes a plurality of field edges 3 arranged in parallel at a predetermined interval in one horizontal direction T1, and a horizontal other direction T2 orthogonal to the field edge 3. A plurality of field receivers (not shown) that are arranged in parallel with each other at a predetermined interval and are connected integrally to a plurality of field edges 1, a lower end connected to the field receiver, and an upper end on the upper floor A plurality of suspension bolts (not shown) fixedly attached to the upper structure (building frame) such as materials and the lower surface of the field edge 3 are integrally attached by screws or the like to form the ceiling surface 1 of the lower floor And a ceiling panel (ceiling material) 4 to be configured. Moreover, in the ceiling part 2 of this building, the ceiling base 5 is comprised by the field edge 3 and the field edge receiver.

  And the smoke-proof hanging wall A of this embodiment which is installed in the ceiling part 2 of such a building and forms a smoke-proof division, as shown in FIG.1 and FIG.2 to FIG. A hanging wall mounting portion 10 that is attached to the ceiling base 5 and sandwiched between the ceiling material 4 that forms the ceiling surface 1 and is fixed to the ceiling base 5, and an upper end is connected to the hanging wall mounting portion 10, A hanging wall main body portion 11 that is suspended downward from the ceiling surface 1 to form a smoke-proof section, and a folded portion 12 that is inclined so as to be bent upward from the lower end of the hanging wall main body portion 11 is formed. Yes.

  Moreover, in this embodiment, the drooping wall attachment part 10 is extended in the horizontal direction, the drooping wall main body part 11 is orthogonally extended to the vertical direction T3 orthogonal to the dripping wall attachment part 10, and the folding | returning part 12 is a dripping wall main body. It is obliquely arranged so as to intersect the part 11 at an angle θ of 45 °.

  Furthermore, in this embodiment, for example, a smoke-proof hanging wall A is formed by bending a steel sheet having a thickness t of 0.6 mm (about 1 mm or less). Here, examples of the steel plate forming the smoke-proof hanging wall A include a galvalume steel plate, a stainless steel plate, a galvanized steel plate, a general mild steel plate, a coated steel plate, a color steel plate, and the like, and it is particularly necessary to limit the steel type. Absent. Moreover, when the coated steel plate and the color steel plate which apply | coated the steel plate are used, the external appearance at the time of installing the smoke-proof hanging wall A etc. can be improved.

  In addition, the smoke-proof hanging wall A of the present embodiment has a length of the hanging wall mounting portion 10 of 40 mm, a length of the hanging wall main body portion 11 of 310 mm, a length of the folded portion 12 of 10 mm, and a basic total length of 4000 mm. It is formed as. In addition, the length of the drooping wall attachment part 10, the drooping wall main-body part 11, and the folding | returning part 12 should just be set suitably according to a condition including the full length of the smoke-proof dripping wall A.

  When attaching the smoke proof dripping wall A configured in this way to the ceiling 2 of the building, as shown in FIGS. 1 and 8, for example, a mounting screw 13 such as a 5 × 16 mm flat screw is driven in and drooped. The wall mounting portion 10 is fixed to the field edge 3 of the ceiling base 5. At this time, the mounting screws 13 are driven at a pitch of 500 mm in the length direction of the smoke-proof hanging wall A, and the hanging wall mounting portion 10 is fixed to the ceiling base 5. Then, the ceiling material 4 is attached to the ceiling base 5 by screwing the ceiling material 4 so as to interpose the hanging wall mounting portion 10 with the ceiling base 5. For example, the drooping wall mounting portion 10 may be fixed to the ceiling base 5 by driving screws 13 into the ceiling material 4, the drooping wall mounting portion 10, and the ceiling base 5 from the ceiling surface 1 side.

  When the hanging wall main body 10 is fixed to the ceiling base 5 in this way, the hanging wall main body 10 projects from the ceiling surface 1 downward in the vertical direction T3.

  Here, when the hanging wall attaching part 10 is fixedly attached to the ceiling base 5, the lower end side of the hanging wall main body part 10 may be bent in a wavy shape, but in this embodiment, the lower end of the hanging wall main body part 10 is bent. Since the folded portion 12 is provided on the side, and the rigidity on the lower end side is enhanced by the folded portion 12, it does not bend in a wave shape, and the linearity of the smoke-proof hanging wall A can be suitably secured even after installation. . That is, it is possible to install the smoke-proof hanging wall A without damaging the aesthetic appearance because the lower end side is bent in a wave shape.

  Furthermore, as shown in FIGS. 1 and 9, the end portions A1 and A2 of the smoke-proof hanging wall A that are installed adjacent to each other to form a smoke-proof section are mutually connected, for example, with an overlap margin W of 30 mm. The end portions A1 and A2 are overlapped, and a joining tape 14 such as an aluminum tape having a width of about 50 mm and a thickness of about 1 mm is attached to both the one surface 11a and the other surface 11b of the wall surface and joined together.

  Moreover, also in the edge part A3 of the smoke-proof dripping wall A which touches the pillar 15 and wall of a building, as shown in FIG.10 and FIG.11, the joining tape 14, such as an aluminum tape of width 50mm, is attached to one surface 11a and the other surface of the wall surface. Affixed to both surfaces of 11b and the joining surfaces of the pillars 15 and the walls and integrally joined. In addition, as the joining tape 14 such as an aluminum tape, it is possible to suitably install the smoke-proof hanging wall A by using one having a use temperature of 0 to 50 ° C., an adhesive strength of 17.1 N / 10 mm, and a tensile strength of 60 N / 20 mm Has been confirmed.

  And in the smoke-proof hanging wall A of this embodiment which consists of the said structure, smoke-proof dripping is carried out using steel plates, such as a Galvalume steel plate, a stainless steel plate, a galvanized steel plate, a general mild steel plate, a coated steel plate, a color steel plate, for example. By forming the wall A, the cost can be reduced as compared with a conventional smoke-proof hanging wall using glass or the like.

  In addition, the hanging wall mounting portion 10, the hanging wall main body portion 11, and the folded-back portion 12 are provided, and the hanging wall mounting portion 10 is attached to the ceiling base 5 and sandwiched between the ceiling base 5 and the ceiling material 4, thereby easily preventing it. A smoke wall A can be installed. For this reason, compared with the conventional smoke-proof dripping wall, it becomes possible to aim at cost reduction also in construction cost.

  Furthermore, since the folding | returning part 12 is diagonally provided so that it may bend upward from the lower end of the drooping wall main-body part 11, the lower end side of the dripping-wall main-body part 11 which forms a smoke-proof division can be reinforced with the folding | returning part 12. . Thereby, for example, even when a steel plate having a thickness of about 1 mm or less is used, it is possible to prevent distortion or bending from occurring on the lower end side of the drooping wall main body 11 at the time of attachment or after attachment, and the appearance can be reduced. It is possible to prevent damage.

  As mentioned above, although one Embodiment of the smoke-proof hanging wall which concerns on this invention was described, this invention is not limited to said one Embodiment, In the range which does not deviate from the meaning, it can change suitably.

DESCRIPTION OF SYMBOLS 1 Ceiling surface 2 Ceiling part 3 Field edge 4 Ceiling material (ceiling panel)
5 Ceiling base 10 Hanging wall mounting portion 11 Hanging wall main body portion 12 Folding portion 13 Mounting screw 14 Joining tape 15 Pillar A Smoke-proof hanging wall A1 End portion A2 End portion A3 End portion T1 Horizontal one direction T2 Horizontal orthogonal to one direction Other direction T3 Vertical direction

Claims (1)

A smoke-proof hanging wall that hangs downward from the ceiling surface and forms a smoke-proof section,
Formed of steel plate,
And the hanging wall mounting part that is interposed so as to be sandwiched between the ceiling base and the ceiling material that is attached to the ceiling base to form a ceiling surface, and is fixed to the ceiling base,
An upper end is connected to the hanging wall mounting portion, and a hanging wall main body portion that is suspended downward from the ceiling surface to form a smoke-proof section,
A smoke-proof dripping wall, comprising: a folded portion that is obliquely bent so as to be bent upward from a lower end of the dripping wall main body portion.

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