JP4211934B2 - Direct ceiling system for office space - Google Patents

Description

  The present invention relates to a direct ceiling system for an office space.

  As ceiling systems for office spaces, those with various ducts inside the double ceiling made up of floor panels and ceiling panels supported on both the upper and lower sides of the beam material are often used. In order to secure a wide range, it has been proposed to form a duct in the inside of a hollow cylindrical beam member. (Patent Document 1, Patent Document 2).

However, in recent years, in order to secure a more spacious space, a direct ceiling system in which a conventional ceiling panel is removed as shown in FIG. 10 has attracted much attention (Non-Patent Document 1).
JP-A-1-142143 JP-A-7-109786 New Architecture, Inc. “New Architecture” August 2003 issue P120-127

In the said nonpatent literature 1, the beam and duct which are not normally seen are removed by removing a ceiling panel, and the space which has a feeling of liberty, but is miscellaneous is created. Such a space is not bad depending on the purpose of the building, but a spacious and clean space is preferred in an office room where you want to concentrate on work or a commercial store that requires a high-class feel. In addition, since the beam is penetrated by the duct, the beam formation must be increased in order to ensure the required strength, and the beam becomes more noticeable.

  Therefore, in order to realize a large space with a clean and unified feeling in an office building, the present invention makes each lower end surface of all large beams and small beams flush with each other by unifying all the beams, It aims at providing the direct ceiling system which formed the duct member which served as the decorative member which covers these end surfaces in the lower end surface of a small beam.

The first means is that each lower end surface of each of the large beam 2 and the small beam 4 in the portion adopting the direct ceiling system in which a horizontal panel is placed on each upper end surface of the large beam and the small beam in the office space, A uniform duct member 20 that overlaps the longitudinal direction of each beam and covers the lower end surface is formed on the lower end surfaces of all the large beams 2 and the small beams 4 by unifying the beams, and The duct member has an air outlet, and the duct member below the large beam and the duct member below the small beam connected to the large beam communicate with each other.

In addition, in this specification and claims, “office space” means a facility for performing intellectual activities and communications such as schools, research institutes, libraries, museums, museums, meeting halls, etc. in addition to office offices in a narrow sense. Therefore, it is assumed to include a space where a high ceiling is desired.
“Direct ceiling” refers to a structure in which a majority of the beam material constituting the ceiling is exposed downward, regardless of whether it is finished, for example, a sound absorbing material near a horizontal panel (deck plate). -It shall include a structure in which an auxiliary panel having a function as a finishing material is provided horizontally.
In addition, the “part using the direct ceiling system” includes, for example, the ceiling part in the case where the outer edge part of the office space that is difficult to touch is a double ceiling and the direct ceiling system is used for other ceiling parts. It is the purpose.

The second means includes the first means, and the duct member 20 is formed to have substantially the same width as the lower end surface of each beam.
The third means includes the first means or the second means, and the formation of the large beam 2 and the small beam 4 is about 1/20 of the span between columns.

The fourth means includes the first means, the second means , or the third means, and the luminaire 50 is suspended on both sides of the duct member 20 at substantially the same height as the lower surface of the duct member 20. I am letting you down.

The present invention is configured as described above, and the invention according to the first means produces the following effects.
○ The ceiling system of the present application is designed so that the duct members, which are also used as decorative members, overlap the lower surfaces of all the large beams 2 and the small beams 4, so that a high ceiling space with a simple and clean appearance can be created. It can be provided without increasing the size.
O Since the duct is not housed in the beam as in Patent Document 1 described above, but the lower surface of the beam material is covered with the duct member and hidden, the structure (beam) and equipment (duct) can be separated and installed easily.
○ These structures and equipment are designed under an integrated concept even if the installation procedures are separate, and in particular, the lower surfaces of the large and small beams are formed flush with each other as the duct installation surface. It is easy to install and has a smooth finish without any steps.
○ Because the duct member 20 is installed on the lower surface without passing through the beam members 2 and 4, sufficient strength can be obtained with the minimum amount of material, and at the same time, a small and inconspicuous beam to obtain the required strength Can be used, and thus a cleaner appearance can be obtained.

  In the invention according to the second means, since the duct member 20 is formed to have substantially the same width as the lower end surface of each beam, the lower end surface can be covered more reliably.

  In the invention according to the third means, since the formation of the large beam 2 and the small beam 4 is about 1/20 of the span between the columns, a more simple and preferable appearance can be obtained.

  In the invention according to the fourth means, since the luminaire 50 is suspended on both sides of the duct member 20 at substantially the same height as the lower surface of the duct member 20, light is not blocked by the duct member 20. Lighting is obtained.

  1 to 7 show a direct ceiling system according to a first embodiment of the present invention.

  The ceiling system includes a large beam 2, a small beam 4, a horizontal panel 12, a duct member 20, and a lighting fixture 50.

  The large beams 2 are erected between the column heads in the front-rear direction as depicted by broken lines in FIG. 1 which is an overhead view of the ceiling portion from below, and the small beams 4 are It is erected in the left-right direction between the large beams 2. Each of the small beams 4 is formed in the same manner, and the large beam 2 is formed in a short length corresponding to the small beam 4 so that the lower surfaces of all the large beams 2 and the small beams 4 are flush with each other. It is formed as follows. The formation of the large beam 2 and the small beam 4 is preferably about 1/20 of the span between columns in order to ensure as large a space under the beam as possible. In one preferred embodiment, the inter-column span L in FIG. 1 is 10.8 m.

  In the illustrated example, the left and right side surfaces and the lower surface of the large beam 2 are covered with a fireproof coating material 6 as shown in FIG. 2, and the web portion of the large beam 2 is connected to the left and right outer sides through the fireproof coating material. The arms 8 and 8 protrude. The base end of this connection arm is connected to the web portion of the large beam 2 via a connection fitting or the like.

  Further, as shown in FIG. 3, the left and right side surfaces and the lower surface of the small beam 4 are covered with a fireproof coating material 6, respectively.

  The horizontal panel 12 is supported horizontally on the upper end surfaces of the large beams 2 and the small beams 4. When this ceiling system is applied to a building having a plurality of floors, the horizontal panel can be a floor panel. Glass wool 14 is stretched on the lower surface of the horizontal panel.

  The duct members 20 are preferably formed in a lattice shape on the lower surfaces of all the large beams 2 and the small beams 4. The lower surfaces of all the duct members 20 are also formed flush with each other as shown in FIGS. ing. The duct member 20 includes a duct 22, a frame body 26 for supporting the duct, and a support member 42 for supporting the frame body with respect to the large beams 2 to 4.

  FIG. 2 shows the first duct member 20 A suspended from the girder 2. This duct member has a wide and concave frame body 26 supported on the large beam 2 and having an upper surface opening, and a pair of left and right metal ducts 22A and 22A are accommodated in the frame body.

  The frame 26 hangs the connecting rods 32, 32 from the respective ends of the connecting arms 8, 8 via the joint metal 27, and a lower end material 29 is installed between the lower ends of the connecting rods. An exterior material 34 having a concave shape in the vertical cross section is mounted through the. The exterior material may be formed of punching metal.

  In the configuration of FIG. 2, the support 42 supports the middle portion of the wide duct member on the left and right, and is supported between the pair of left and right support bars 42 a, 42 a suspended from the lower flange portion of the large beam 2. A vertical support material 42c whose length can be adjusted is suspended from the horizontal material, and the lower end of the support material is connected to the intermediate portion in the left-right direction of the lower material 29.

  FIG. 3 shows the second duct member 20 </ b> B suspended from the beam 4. The duct of this duct member is a lightweight duct 22B formed of a glass wool molded plate or the like. The frame body 26 includes an upper frame 28, a lower frame 30, a connecting rod 32, and an exterior material 34. The lightweight duct 22B is sandwiched between upper and lower frames 28 and 30 wider than the duct. Both ends of these frames are connected by connecting rods 32, and an exterior material 34 having a vertical cross section is mounted outside the lower frame 30 with a gap between the lower surface of the lower frame. . A through hole 36 is formed in the lower plate of the lightweight duct 22B as shown in an enlarged view in FIG. 4, and a diffuser (blowout device) that expands outward from the through hole as shown by a broken line in FIG. 38 is formed between the lower frame 30 and the lateral plate portion of the concave-shaped exterior member 34, and the front end opening of the diffuser is connected to the air outlet 40 formed in the side plate portion of the exterior member 34. is doing. In the illustrated example, a plurality of exterior materials shorter in the longitudinal direction than the duct and the beam material are joined to cover the duct.

  The metal duct 22A of the first duct member communicates with the lightweight duct 22B of the second duct member, and the conditioned air is blown out from the outlet 40 through the lightweight duct 22B. Yes.

In the above, in one preferred embodiment, the height h ₅ from the floor surface of the office space to the lower surface of the exterior material 34 is 3.0 m in the floor height h ₄ = 4.1 m as shown in FIG. . The main dimensions of the ceiling portion in this example are as follows. The height h ₃ from the lower surface of the exterior material to the lower surface of the beam 4 is 385 mm, the height h _{2 of the} beam 4 is 450 mm, and it is smaller. The height h ₁ from the upper surface of the beam 4 to the floor surface of the adjacent upper floor is 265 mm.

  A plurality of lighting fixtures 50 are arranged along the direction of the beam on one or both sides of the small beam 4. Each of the lighting fixtures 50 is suspended from the horizontal panel 12 by a wire 52, and is also provided with a bar-shaped steadying member 54 projecting diagonally downward from both sides of the upper frame 28 of the second duct member 20B. The instrument 50 is fixed. Note that the lower surface of the luminaire 50 is preferably substantially the same height as the lower surface of the duct member 20.

  According to the above configuration, the beam structure of the large beam 2 and the small beam 4 is unified and the lower surface thereof is made flush with each other, and the lattice-like duct member is formed on the lower surface side. It is possible to provide an office space that is fused in various ways.

  The configuration of another embodiment of the present invention will be described below. In this case, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  FIG. 8 is a diagram showing a second embodiment of the present invention. In this embodiment, the side surface of the small beam 4 and the side surface and the lower surface of the lightweight duct 22B connected to the lower surface of the small beam via the connecting plate 44 are continuously surrounded by the fireproof covering material 6. With this configuration, a cleaner appearance can be obtained. Of course, the surroundings of the large beam 2 and the first duct member 20A shown in FIG. 2 may be integrally covered with a fireproof covering material.

  FIG. 9 is a diagram showing a third embodiment of the present invention. In this embodiment, an auxiliary panel 16 having a function as a sound absorbing material / finishing material is provided below the horizontal panel 12 with a small gap between the horizontal panel 12 and the horizontal panel.

1 is an overhead view of a direct ceiling system according to a first embodiment of the present invention. It is the II-II sectional view taken on the line of the system of FIG. Fig. 3 is a cross-sectional view taken along line III-III of another main part of the system of Fig. 1. It is an enlarged view of the principal part of FIG. FIG. 4 is a cross-sectional view of the system taken along line IV-IV. FIG. 5 is a cross-sectional view of the system taken along line VV. 1 is a perspective view looking up the system from diagonally above. It is principal part sectional drawing of the 2nd Embodiment of this invention. It is principal part sectional drawing of the 3rd Embodiment of this invention. It is a perspective view of the conventional ceiling system.

Explanation of symbols

2 ... Large beam 4 ... Small beam 6 ... Fireproof covering material 8 ... Connecting arm 12 ... Horizontal panel
14 ... Glass wool 16 ... Auxiliary panel 20 ... Duct member 20A ... First duct member
20B ... Second duct member 22 ... Duct 22A ... Metal duct 22B ... Lightweight duct
26 ... Frame 27 ... Joint 28 ... Upper frame 29 ... Lower end material 30 ... Lower frame 32 ... Connecting rod
34… Exterior material 36… Through hole
38 ... Diffuser 40 ... Air outlet 42 ... Support tool 42a ... Support bar 42b ... Cross member
42c ... Vertical support 44 ... Connecting plate 50 ... Lighting equipment 52 ... Wire 54 ... Stabilizer

Claims (4)

Each lower end surface with all girders 2 and the beams 4 of the portion to adopt the office space girders and joists straight ceiling system with mounting the horizontal panels to each upper end surface of the surface by unification of the RyoNaru as one, the lower end surfaces of all of these girders 2 and the beams 4, to overlap the longitudinal direction of each beam, to form a decorative member, functioning as a duct member 20 covering the lower end face, the duct member, the air outlet Have
And the duct member below the large beam and the duct member below the small beam connected to the large beam are in communication with each other.
Further, the direct ceiling system for an office space, wherein the lower end surface of the duct member 20 is all flush . 2. A direct ceiling system for an office space according to claim 1 , wherein the duct member 20 is formed to have substantially the same width as the lower end surface of each beam. 3. The office space direct ceiling system according to claim 1 , wherein the large beam 2 and the small beam 4 are formed to be about 1/20 of a span between columns. The office space according to claim 1, 2 , or 3 , wherein a lighting fixture 50 is suspended on both sides of the duct member 20 at substantially the same height as the lower surface of the duct member 20. Direct ceiling system.

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