JP2705889C - - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a lighting skylight provided on a roof of a building or the like, and more specifically, to improve the appearance when looking up from the indoor side. In addition, it relates to a skylight with improved fire resistance in the event of a fire. 2. Description of the Related Art Conventionally, skylights provided on a roof or the like for improving the lighting property of a building indoors are made of a material such as aluminum which is lightweight and has excellent aesthetics and corrosion resistance. Formwork is used. However, this form is easily deformed by heat when exposed to high temperatures in the event of a fire,
There is a risk that the glass plate etc. that closes the roof opening will fall off and fall indoors.
Various preventive measures have been taken. For example, the “skylight” disclosed in Japanese Utility Model Laid-Open No. 5-12524 by the inventor of the present invention has filed an acrylic dome, a glass plate, or the like on the upper surface of an aluminum mold. A glass-filled concrete is attached to the indoor surface of the formwork with a skylight fitted with a daylight closing plate and the lower end of the formwork fitted to an opening provided on a horizontal surface or a slope such as a building roof. It is characterized in that a fire-resistant insulation board such as a board or a gypsum board is stuck. That is, as shown in FIG. 3, in the above-mentioned skylight 1, a meshed glass plate 5 whose periphery is covered with a packing 7 on a flange 1 c provided at the upper end of an aluminum mold 1 a, and an acrylic dome 6, the holding frame 2 that presses the outer peripheral portion of the acrylic dome against the flange 1c via a packing 8 is fixed to the mold frame 1a by bolts 3. ing. A glass fiber-containing concrete plate or a gypsum board 4 as a fire-resistant heat insulating plate is adhered to the indoor surface of the mold 1a so that the aluminum mold 1a is not easily thermally deformed when a fire occurs. And fire resistance is enhanced. [0004] However, in the above-mentioned skylight, a concrete plate or a gypsum board 4 containing glass fiber is attached to the indoor side surface of the formwork 1a. There is a problem that the appearance when the skylight 1 is looked up from the indoor is not beautiful. In the above-mentioned skylight 1, a gap is provided between the end surface of the glass fiber-containing concrete plate or the gypsum board 4 and the surface of the mesh-containing glass plate 5.
As a result, a high-temperature atmosphere caused by a fire may reach the packing 7 and the flange 1c around the end face of the glass fiber-filled concrete plate or the gypsum board 4 and may be thermally deformed. In addition, glass fiber-containing concrete boards and gypsum boards have limitations in their formability, so they cannot follow the complicated shape of the formwork, and cannot cover the entire indoor surface of the formwork. There were also points. In addition, since the above-mentioned skylight has a structure in which the acrylic dome 6 and the netted glass 5 are overlapped and pressed against the flange 1c by the holding frame 2, the structure is made watertight, so that either the packing 7 or the packing 8 is deteriorated. However, there is a problem that the watertightness is reduced. Therefore, the present invention has been made in view of the above-mentioned problems, and is excellent in aesthetic appearance when a skylight is looked up from indoors, and is excellent in fire resistance at the time of fire occurrence and watertightness. The purpose is to provide excellent skylights. [0006] In order to solve the above-mentioned problems, a skylight of the present invention has a daylight closing plate attached to the upper end of a mold frame in a liquid-tight manner, and the daylight closing plate is provided. In a skylight in which the formwork is attached to a building so as to face an opening provided on a roof or the like of a building, a mesh-covered glass plate that closes the opening is provided on a surface facing the indoor side of the formwork with the lighting obstruction plate Alone at an interval
In addition to the above, a supporting portion is provided to protrude, and the indoor surface of the supporting portion and the formwork are covered with a metal plate. In addition, the metal plate is extended so as to be in contact with the netted glass. Further, the metal plate is attached to the bearing portion or the surface of the formwork with a gap therebetween. In addition, a heat insulating material is interposed between the metal plate and the bearing or the formwork. [0007] The metal plate of the skylight of the present invention covers the indoor surface of the support portion and the formwork to improve the aesthetic appearance, and also shields the high-temperature atmosphere caused by fire from the support portion and the support portion. Protect the formwork. Further, the metal plate extended so as to be in contact with the meshed glass prevents the high-temperature atmosphere due to the fire together with the meshed glass from going around from the end face of the meshed glass toward the daylighting closing plate. Further, a gap between the metal plate and the support portion or the formwork shields a high-temperature atmosphere caused by a fire to protect the support portion or the formwork. Similarly, a heat insulating material interposed between the metal plate and the bearing portion or the formwork shields a high-temperature atmosphere caused by a fire to protect the bearing portion or the formwork. An embodiment of a skylight according to the present invention will be described below in detail with reference to the drawings. Here, FIG. 1 is a half sectional view of a skylight according to a first embodiment of the present invention, FIG. 2 is a half sectional view of a skylight of a second embodiment according to the present invention, and FIG. 3 is a half sectional view of a conventional skylight. First Embodiment First, a skylight 10 according to a first embodiment of the present invention will be described with reference to FIG. As shown in FIG. 1, the skylight 10 has a fixed portion 11 fixed to a building (not shown), and a cover portion 12 for covering rainwater from entering into a gap between the fixed portion 11 and the building. Both are fixed to the building by the mounting bracket 12a. In addition, the skylight 10 is provided with a packing 14 on a flange 14, which is vertically provided on the upper end of a vertical wall 13 of an aluminum formwork toward the indoor side, through a glass plate as a light blocking plate. 34 are mounted. Further, a projection 13a having a groove 13b is integrally provided at an upper end portion of the standing wall 13 on the outdoor side. Then, the bolt 19 whose tip is inserted and screwed into the groove 13b is used to secure the flange 14
The holding frame 18 urged to the side presses the glass plate 34 against the flange 14 via a packing 36 arranged with a gap along the edge of the lighting glass plate 34. . Thus, in the skylight 10 of the first embodiment, the lighting glass plate 34 is made to adhere to the flange 14 alone via the packing 35, as in the conventional skylight 1 shown in FIG. 3. Watertightness can be increased as compared with a method in which an acrylic dome or a lighting glass plate 6 and a netted glass 5 are overlapped and sealed with a packing 7. In the skylight 10 of the first embodiment, the rainwater that has entered the inside of the holding frame 18 is drained from a drain hole 18 a provided at a portion one step lower than the mating surface between the packing 35 and the flange 14. As it is designed to be discharged outside,
Watertightness is further improved as compared with the conventional skylight shown in FIG. A flange 15 a is vertically provided on the indoor surface of the vertical wall 13.
A flange 15b extending toward the daylighting glass plate 34 is vertically provided at the tip of the flange 15a, and serves as a support portion 15 for supporting the meshed glass plate 31 that closes the opening 9 of the building. . The surfaces of the bearing 15 and the vertical wall 13 facing the indoor side are covered with a first stainless steel plate 16a, and the first stainless steel plate 16a, the bearing 15 and the vertical wall 13 A heat insulating material 17 is interposed between them. Thus, when the skylight 10 is looked up from the inside of the building, the appearance is extremely beautiful. When a fire occurs inside the building and the skylight 10 is exposed to high temperatures, the support portion 15 and the vertical wall 13 are exposed. Is protected by the first stainless steel plate 16a and the heat insulating material 17, and is not easily thermally deformed. Further, one end of the second stainless steel plate 16 b is overlapped with a portion of the first stainless steel plate 16 a facing the flange 15 b of the support part 15, and the flange is formed by a rivet 39. 15b. The second stainless steel plate 16b has a portion extending vertically toward the vertical wall 13 of the mold 10 and a portion vertically extending from the tip of the portion toward the lighting glass plate 34. Is provided as a seat surface to which the netted glass 31 is attached. Further, a plurality of holding fittings 33 are attached to a portion of the second stainless steel plate 16b extending toward the lighting glass plate 34 by spot welding. Thereby, the meshed glass 31 placed on the second stainless steel plate 16b via the packing 32 is fixed so as not to float from the support portion 15 by bending the holding metal member 33. The high-temperature atmosphere rising from the opening 9 when a fire occurs indoors is blocked by the netted glass 31 and the second stainless steel plate 16b and cannot reach the lighting glass plate 34 side, and therefore the lighting The mold 13 supporting the closing plate 34 is not easily thermally deformed. In the event that rainwater leaks from the space between the lighting glass plate 34 and the packing 35 to the indoor side, the rainwater is released from the flanges 15 a and 15 b of the support portion 15.
And is discharged outside through a drain hole 13c provided in the vertical wall 13, so that it does not fall indoors. Second Embodiment Next, a skylight according to a second embodiment of the present invention will be described with reference to FIG. As shown in FIG. 2, the skylight 20 of the second embodiment is different from the skylight 10 of the first embodiment.
The lighting glass plate 34 is changed to an acrylic dome 37, the stainless steel plates 16a and 16b are integrated, and the meshed glass 31 is
2 is the same as the skylight 10 of the first embodiment except that it is directly abutted on the stainless steel plate 16 without the interposition of the metal plate 2 and is directly fixed by the stainless steel plate 16 without using the fixing bracket 33. ing. That is, although the acrylic dome 37 is attached to the skylight 20 of the second embodiment, the fixing method is the same as that of the skylight 10 of the first embodiment. Since it is pressed against the flange 14 via 35 for sealing, the watertightness is higher than that of the conventional skylight 1. In the skylight 20 of the second embodiment, the stainless steel plate 16 that covers the indoor surface of the support portion 15 is extended so as to be in contact with the meshed glass plate 31, and is directly held and fixed. As a result, not only the number of parts is reduced as compared with the skylight 10 of the first embodiment, but also the fixing of the netted glass plate 31 to the support portion 15 can be made stronger, The sealing can be performed more reliably so that the high-temperature atmosphere rising from the opening 9 due to the fire does not reach the lighting glass plate 34 side. The present invention is configured as described above, and has the following excellent effects. That is, according to the skylight of the present invention, the surface facing the indoor side of the support portion and the formwork for supporting the netted glass plate is covered with the metal plate, so that the appearance when the skylight is looked up from the indoor is improved. be able to. In addition, since the metal plate covers the bearing and the mold to shield the high-temperature atmosphere caused by a fire, the bearing and the mold are not easily thermally deformed. This can eliminate the risk that the screened glass will fall indoors when a fire occurs. Furthermore, by extending the metal plate to the end face of the netted glass plate, a high-temperature atmosphere associated with a fire can be sealed by the netted glass plate and the metal plate,
The high-temperature atmosphere wraps around to the daylighting closing plate side, thereby preventing thermal deformation of the mold supporting the daylighting closing plate.

[Brief description of the drawings]     FIG.   It is a half sectional view of one embodiment of a skylight concerning the present invention.     FIG. 2   FIG. 6 is a half sectional view of another embodiment of the skylight according to the present invention.     FIG. 3   It is a half sectional view of the conventional skylight.     [Explanation of symbols]         1 Conventional skylight         2 Holding frame         3 bolts         4 Gypsum board         5 Netted glass         6 acrylic dome         7 Packing         8 Packing         9 Building openings       10. Skylight of Example 1 according to the present invention       11 Fixed part       12 Cover part       13 vertical wall       14 Flange       15 Bearing       16a First stainless steel plate       16b Second stainless plate       17 Insulation       18 Holding frame       19 volts       20 Skylight of Example 2 according to the present invention       31 Glass with net       32 Packing       33 Fixing bracket       34 Glass with mesh       35 Packing       36 Packing       37 Acrylic Dome       39 rivets

Claims (1)

Claims: 1. A light-blocking plate is liquid-tightly attached to an upper end of a mold, and the mold is arranged so that the light-blocking plate faces an opening provided on a roof or the like of a building. In a skylight that is attached to a building, a supporting portion for independently supporting a netted glass plate for closing the opening at a distance from the lighting closing plate is provided on a surface facing the indoor side of the formwork. A skylight, wherein the support portion and the indoor surface of the formwork are covered with a metal plate. 2. The skylight according to claim 1, wherein the metal plate is extended so as to abut on the netted glass. 3. The skylight according to claim 1, wherein the metal plate is attached to the bearing portion or the surface of the form with a gap therebetween. 4. A skylight according to claim 3, wherein a heat insulating material is interposed between said metal plate and said bearing portion or said formwork.