WO2019008912A1 - Insulated glazing and sash window - Google Patents

Insulated glazing and sash window Download PDF

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Publication number
WO2019008912A1
WO2019008912A1 PCT/JP2018/018848 JP2018018848W WO2019008912A1 WO 2019008912 A1 WO2019008912 A1 WO 2019008912A1 JP 2018018848 W JP2018018848 W JP 2018018848W WO 2019008912 A1 WO2019008912 A1 WO 2019008912A1
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WO
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Prior art keywords
glass
glass plate
mass
multilayer
spacer
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PCT/JP2018/018848
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French (fr)
Japanese (ja)
Inventor
関　芳和
桑原　英一郎
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日本電気硝子株式会社
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Publication of WO2019008912A1 publication Critical patent/WO2019008912A1/en

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/06—Joining glass to glass by processes other than fusing
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor

Definitions

  • the present invention relates to a multilayer glass comprising at least three or more glass plates and a sash window using the multilayer glass.
  • double glazing is used for the outer wall of a building for which fire resistance is required.
  • a multilayer glass is formed by arranging a plurality of glass plates at intervals via a spacer. And the peripheral part of a several glass plate is sealed by the sealing material, and, thereby, the hollow layer is provided between glass plates.
  • the multilayer glass used for fire protection equipment usually comprises at least one glass sheet having fire resistance such as netted glass, heat-resistant tempered glass, low expansion fire-resistant glass and the like.
  • Patent Document 1 discloses a double-layered glass composed of three glass plates (first to third glass plates).
  • the 1st glass plate and the 2nd glass plate are spaced apart via the spacer, and the 1st hollow layer is provided in the meantime.
  • the second glass plate and the third glass plate are also spaced apart via a spacer, and a second hollow layer is provided therebetween.
  • the 1st glass plate is comprised by the fire prevention glass plate
  • the 2nd glass plate and the 3rd glass plate are comprised by the glass plate which is not a fire prevention glass plate.
  • a heat-resistant low-e (low-emissivity) film is formed on the inner surface of the third glass plate on the intermediate layer side.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a double glazing excellent in fire resistance and a sash window using the double glazing.
  • the multilayer glass of the present invention comprises at least three or more glass plates facing each other and spaced apart via a spacer, and the peripheral portion of the at least three or more glass plates is A multi-layered glass in which hollow layers are provided between the glass plates by being sealed with a sealing material, and the outermost of the at least three glass plates is provided.
  • the low radiation film is provided on the main surface on the hollow layer side of at least one of the two glass plates, and the third glass plate is made of crystallized glass. It is characterized.
  • the multilayer glass of the present invention is used for at least a part of the outer wall of a building, the first glass plate is provided on the outdoor side, and the second glass plate is on the indoor side It is preferable to be provided.
  • the low emission film is provided on the main surface on the hollow layer side of both glass plates of the first glass plate and the second glass plate. preferable.
  • the low emission film preferably contains silver.
  • the multilayer glass of the present invention is preferably used for fire protection equipment.
  • the sash window of the present invention is characterized by comprising a double glazing configured according to the present invention, and a frame provided at the periphery of the double glazing.
  • FIG. 1 is a schematic cross-sectional view showing a multilayer glass according to a first embodiment of the present invention.
  • FIG. 2 is a schematic cross-sectional view showing a multilayer glass according to a second embodiment of the present invention.
  • Fig.3 (a) is a typical front view which shows the sash window which concerns on one Embodiment of this invention
  • FIG.3 (b) is typical sectional drawing in alignment with the AA in FIG. 3 (a). It is.
  • FIG. 1 is a schematic cross-sectional view showing a multilayer glass according to a first embodiment of the present invention.
  • the multilayer glass 1 includes a first glass plate 2, a second glass plate 3, and a third glass plate 4.
  • the first glass plate 2 and the second glass plate 3 are the outermost glass plates.
  • a third glass plate 4 is provided between the first glass plate 2 and the second glass plate 3.
  • the multilayer glass 1 is composed of three glass plates, and the first glass plate 2 and the second glass plate 3 are outer glass plates, and the third glass plate 4 is an intermediate glass plate. It is.
  • the multilayer glass 1 may be constituted by four or more glass plates.
  • the multilayer glass 1 is used for at least a part of the outer wall of a building.
  • the multilayer glass 1 may be provided in parts other than the outer wall of a building, and the provided position is not particularly limited.
  • the first glass plate 2 is provided on the outdoor side.
  • the second glass plate 3 is provided on the indoor side.
  • the first glass plate 2 and the third glass plate 4 are provided to face each other. More specifically, the major surface 2 a of the first glass plate 2 is provided to face the major surface 4 a of the third glass plate 4.
  • the first glass plate 2 and the third glass plate 4 are provided at an interval via the first spacer 9.
  • the main surface 2a of the first glass plate 2 is joined to the first spacer 9 by the primary sealing material 11A.
  • the main surface 4a of the third glass plate 4 is joined to the first spacer 9 by the primary seal material 11B.
  • peripheral edge portion 2 a 1 of the main surface 2 a of the first glass plate 2 and the peripheral edge portion 4 a 1 of the main surface 4 a of the third glass plate 4 are directly joined by the secondary sealing material 13. More specifically, the secondary sealing material 13 is provided closer to the end face 1A of the multilayer glass 1 than the primary sealing materials 11A and 11B and the first spacer 9, and the first glass plate 2, the first The portion divided by the third glass plate 4 and the first spacer 9 is filled.
  • the first sealing material 11A, 11B and the secondary sealing material 13 seal between the first glass plate 2, the third glass plate 4 and the first spacer 9.
  • the first hollow layer 5 is formed between the first glass plate 2, the third glass plate 4 and the first spacer 9.
  • the first hollow layer 5 is an air layer filled with dry air.
  • the first hollow layer 5 may be filled with a gas such as argon gas or krypton gas.
  • the first low emission film 7 is provided on the major surface 2 a of the first glass plate 2.
  • the first low emission film 7 is provided to face the first hollow layer 5.
  • the material constituting the first low emission film 7 is silver.
  • the first low emission film 7 may be made of another material such as tin oxide or ITO.
  • the third glass plate 4 is provided to face the second glass plate 3 as well. More specifically, the major surface 3 a of the second glass plate 3 is provided to face the major surface 4 b of the third glass plate 4.
  • the major surface 4 b of the third glass plate 4 is the major surface opposite to the major surface 4 a of the third glass plate 4. Therefore, the main surface 4 b of the third glass plate is provided on the opposite side to the first glass plate 2.
  • the second glass plate 3 and the third glass plate 4 are provided at an interval via the second spacer 10.
  • the main surface 3a of the second glass plate 3 is bonded to the second spacer 10 by the primary sealing material 12A.
  • the main surface 4b of the third glass plate 4 is joined to the second spacer 10 by the primary sealing material 12B.
  • peripheral edge portion 3a1 of the main surface 3a of the second glass plate 3 and the peripheral edge portion 4b1 of the main surface 4b of the third glass plate 4 are directly joined by the secondary seal member 14. More specifically, the secondary sealing material 14 is provided closer to the end face 1A of the multilayer glass 1 than the second spacer 10, and the second glass plate 3, the third glass plate 4, and the third The portion divided by the two spacers 10 is filled.
  • the second hollow layer 6 is formed between the second glass plate 3, the third glass plate 4 and the second spacer 10.
  • the second hollow layer 6 is an air layer. Dry air is enclosed in the air layer.
  • a gas such as argon gas or krypton gas may be enclosed.
  • the second low radiation film 8 is provided on the major surface 3 a of the second glass plate 3.
  • the second low emission film 8 is provided to face the second hollow layer 6.
  • the material constituting the second low emission film 8 is silver.
  • the second low emission film 8 may be made of another material such as tin oxide or ITO.
  • the first glass plate 2 and the second glass plate 3 are made of ordinary float glass.
  • the first glass plate 2 and the second glass plate 3 may be made of other glass.
  • the first glass plate 2 and the second glass plate 3 may be laminated glass.
  • the third glass plate 4 is made of crystallized glass having heat resistance.
  • a heat-resistant crystallized glass for example, a transparent crystallized glass in which crystals of ⁇ -quartz solid solution are precipitated can be used.
  • the average linear expansion coefficient of the heat-resistant crystallized glass is preferably in the range of ⁇ 10 / K to 10 ⁇ 10 ⁇ 7 / K in the temperature range of 30 ° C. to 750 ° C.
  • the third glass plate 4 can be made more difficult to be damaged even if it is quenched by fire extinguishing activity when a fire occurs.
  • the third glass plate 4 may be a laminated glass including at least one crystallized glass.
  • the 3rd glass plate 4 provided in the middle among the three glass plates which comprise the multilayer glass 1 is comprised with crystallized glass. Therefore, even if the double-glazed glass 1 is heated in the event of a fire and the first glass plate 2 and the second glass plate 3 on the outer side are broken, the third glass plate 4 provided in the middle is It is hard to cause breakage or dropout. Therefore, the third glass plate 4 can be used to shield the light, and the fire resistance of the multilayer glass 1 can be enhanced. Since the double glazing 1 is excellent in fire resistance, it is possible to achieve enlargement.
  • the third glass plate 4 is further cracked even when quenched by the fire extinguishing activity. It can be difficult. Therefore, in this case, the fire resistance of the multilayer glass 1 can be further enhanced.
  • the middle third glass plate 4 is made of crystallized glass, the case where the outer first glass plate 2 and the second glass plate 3 are made of crystallized glass and The manufacturing cost can be reduced by comparison.
  • the 3rd glass plate 4 is comprised by crystallized glass, delivery time can also be shortened compared with the case where tempered glass, such as a wind-cooling tempered glass, is used.
  • tempered glass such as a wind-cooling tempered glass
  • the thickness T 1 of the third glass plate 4 without increasing the double glazing 1 overall thickness T, a first hollow layer 5 and the second thickness of the hollow layer 6
  • the thickness can be increased, whereby the thermal insulation of the multilayer glass 1 can be enhanced.
  • the thickness of the third glass plate 4 is preferably 2 mm or more, more preferably 3 mm or more, preferably 5 mm or less, more preferably 4 mm or less.
  • the fire resistance of the multilayer glass 1 can be further enhanced.
  • the thickness of the third glass plate 4 is equal to or less than the above upper limit, the thicknesses of the first hollow layer 5 and the second hollow layer 6 can be further increased. Thermal insulation can be further enhanced.
  • the ratio (T 1 / T) of the thickness T 1 of the third glass plate 4 to the thickness T of the entire multilayer glass 1 is preferably at least 0.06, more preferably at least 0.09, preferably Is 0.19 or less, more preferably 0.14 or less.
  • the ratio (T 1 / T) is equal to or more than the above lower limit, the fire resistance of the multilayer glass 1 can be further enhanced.
  • the ratio (T 1 / T) is equal to or less than the above upper limit, the thicknesses of the first hollow layer 5 and the second hollow layer 6 can be further increased, whereby the heat insulation of the multilayer glass 1 is achieved. Sex can be further enhanced.
  • the ratio of the sum of the thickness T 2 and the thickness T 3 of the second hollow layer 6 of the first hollow layer 5 for double glazing 1 overall thickness T is Preferably it is 0.52 or more, More preferably, it is 0.65 or more, Preferably it is 0.75 or less, More preferably, it is 0.69 or less.
  • the ratio ((T 2 + T 3 ) / T) is equal to or more than the above lower limit, the heat insulation of the multilayer glass 1 can be further enhanced.
  • the ratio ((T 2 + T 3 ) / T) is less than or equal to the above upper limit, the fire resistance of the multilayer glass 1 can be further enhanced.
  • a first glass plate and a second glass plate For example, ordinary float glass can be used as the first glass plate and the second glass plate.
  • the first glass plate and the second glass plate may be tempered glass reinforced by air cooling reinforcement or chemical strengthening, or double strength glass. From the viewpoint of further reducing the manufacturing cost, the first glass plate and the second glass plate are preferably float glass.
  • the first glass and the second glass plate may be laminated glass.
  • the low emission film is a low-e (low-emissivity) film for reflecting heat rays. Therefore, by providing the low radiation film, the glass plate can be made more difficult to break in the event of a fire.
  • the metal constituting the low emission film is silver.
  • the low emission film can be formed, for example, by vapor deposition or sputtering.
  • the third glass plate is made of crystallized glass having heat resistance.
  • a heat-resistant crystallized glass for example, a transparent crystallized glass in which crystals of ⁇ -quartz solid solution are precipitated can be used.
  • the average linear expansion coefficient of the heat-resistant crystallized glass is preferably in the range of ⁇ 10 / K to 10 ⁇ 10 ⁇ 7 / K in the temperature range of 30 ° C. to 750 ° C.
  • the third glass plate can be made more difficult to be damaged even in the event of a fire, even when the water is quenched rapidly with fire extinguishing activity.
  • the third glass plate may be a laminated glass containing at least one crystallized glass.
  • Resistant crystallized glass a composition, SiO 2 60 wt% to 70 wt%, Al 2 O 3 17 wt% to 27 wt%, Li 2 O 3 wt% to 6 wt%, ZrO 2 1 wt% to 3 wt It is preferable to contain 1% by mass to 3% by mass of TiO 2 .
  • a composition SiO 2 60 wt% to 70 wt%, Al 2 O 3 17 wt% to 27 wt%, Li 2 O 3 wt% to 6 wt%, Na 2 O 0.05 wt% to 1 wt% , K 2 O 0.1% by mass to 1% by mass, ZrO 2 1% by mass to 3% by mass, TiO 2 1% by mass to 3% by mass, MgO 0.1% by mass to 0.9% by mass, P 2 O 5 0.05% by mass to 2% by mass, As 2 O 3 0% by mass to 2% by mass, Sb 2 O 3 0% by mass to 2% by mass, and SnO 2 0% by mass to 2% by mass preferable.
  • the average linear thermal expansion coefficient of the heat-resistant crystallized glass can be in the range of ⁇ 10 / K to 10 ⁇ 10 ⁇ 7 / K.
  • the detail about each composition of such a heat-resistant crystallized glass is demonstrated.
  • SiO 2 is a component which forms a network while forming a network structure.
  • the average linear expansion coefficient may be high and the mechanical strength may be low.
  • the content of SiO 2 is more preferably 64% by mass to 66% by mass.
  • Al 2 O 3 is a component that constitutes a crystal.
  • the content of Al 2 O 3 is less than 17% by mass, the devitrification of the glass may be strengthened and the chemical durability may be reduced.
  • the content is more than 27% by mass, the viscosity of the glass may be too high to obtain a uniform glass.
  • the Al 2 O 3 content is more preferably 21% by mass to 23% by mass. As a result, the chemical durability can be more reliably maintained, and the transparency of the glass can be maintained even more reliably.
  • Li 2 O is a component that constitutes a crystal.
  • the content of Li 2 O is less than 3% by mass, it may be difficult to form a desired crystal and the solubility may be deteriorated.
  • the content of Li 2 O is more preferably 3% by mass to 5% by mass. As a result, desired crystallization can be formed to further enhance the heat resistance, and the transparency of the glass can be more reliably maintained.
  • Na 2 O is a component that further improves the solubility of glass. If the content of Na 2 O is less than 0.05% by mass, desired solubility may not be obtained. On the other hand, if it is more than 1% by mass, the average linear expansion coefficient of the glass may be increased. The content of Na 2 O is more preferably 0.4% by mass to 0.6% by mass. As a result, the predetermined average linear expansion coefficient can be maintained more reliably, and the uniformity of the glass can be maintained more reliably.
  • K 2 O is a component that further improves the solubility of glass. If the content of K 2 O is less than 0.1% by mass, desired solubility may not be obtained. On the other hand, if it is more than 1% by mass, the average linear expansion coefficient of the glass may be increased. The content of K 2 O is more preferably 0.2% by mass to 0.4% by mass. As a result, the predetermined average linear expansion coefficient can be maintained more reliably, and the uniformity of the glass can be maintained more reliably.
  • the total content of Na 2 O and K 2 O is preferably 0.5% by mass to 2% by mass. If the total content of Na 2 O and K 2 O is less than 0.5% by mass, the solubility of the glass may decrease, and if it exceeds 2% by mass, the strength and heat resistance of the glass may decrease. is there.
  • ZrO 2 is a component that acts as a nucleation agent.
  • the content of ZrO 2 is less than 1% by mass, stable crystallization may not be performed, and coarse large crystals are formed, which may make it difficult to obtain a transparent crystallized glass.
  • it exceeds 3% by mass an undegraded product of zirconia may be generated, and a devitrified product may be generated in the glass.
  • TiO 2 is a component that acts as a nucleation agent. If the content of TiO 2 is less than 1% by mass, the effect of promoting crystallization can not be obtained, and a desired crystal may not be obtained. On the other hand, if the amount is more than 3% by mass, the liquid phase temperature may be high, which may make the forming operation difficult. Furthermore, the heat-resistant crystallized glass may turn brown and the transparency may be impaired.
  • the content of TiO 2 is more preferably 1.3% by mass to 3% by mass. Thus, the desired crystallinity can be achieved to further enhance the heat resistance, and the transparency of the glass can be maintained more reliably.
  • the total content of ZrO 2 and TiO 2 is preferably 2.6% by mass to 5% by mass. If the total content of ZrO 2 and TiO 2 is less than 2.6% by mass, the effect of promoting crystallization can not be obtained, and the mechanical strength may be reduced. On the other hand, when the total content exceeds 5% by mass, the devitrification resistance becomes strong, and it may be difficult to obtain a uniform crystallized glass.
  • P 2 O 5 is a component that improves the low solubility of ZrO 2 contained as a nucleating agent. If the content of P 2 O 5 is less than 0.05% by mass, the improvement effect may be reduced. On the other hand, if the amount is more than 2% by mass, phase separation may be facilitated, the amount of crystal formation may be increased, and transparency may be reduced. The content of P 2 O 5 is more preferably 1% by mass to 2% by mass. As a result, desired crystallization can be obtained more reliably, and the transparency of the glass can be maintained more reliably.
  • As 2 O 3 , Sb 2 O 3 and SnO 2 are added as a fining agent, and the total content thereof is preferably 0.1% by mass to 2% by mass. Thereby, the solubility, the workability, and the uniformity of the glass can be further improved. When the total content is less than 0.1% by mass, the fining effect may be reduced, and when it exceeds 2% by mass, it may be environmentally unfavorably.
  • a more preferable total content of As 2 O 3 , Sb 2 O 3 and SnO 2 is 0.1% by mass to 1% by mass.
  • the heat-resistant crystallized glass may contain 0.5% by mass to 3% by mass of optional components such as CaO, PbO, F 2 , Cl 2 or CeO 2 .
  • the spacer can be made of, for example, a metal such as aluminum or an alloy containing aluminum, or a resin such as butyl rubber. Moreover, it is preferable that a hollow part is provided in the inside of the spacer.
  • the hollow portion can be filled with a desiccant such as particulate zeolite. Thereby, the air in the first hollow layer and the second hollow layer can be dried.
  • Primary sealing material and secondary sealing material As a primary seal material, it is preferable to use the adhesive which consists of butyl rubber, for example. Since the primary sealing material is provided on the side of the first hollow layer or the second hollow layer, by using butyl rubber, it is possible to prevent moisture from entering the first hollow layer and the second hollow layer. It can be more effectively suppressed.
  • the butyl rubber is preferably not crosslinked.
  • an adhesive made of polyisobutylene may be used as the primary sealing material.
  • such a butyl-based pressure-sensitive adhesive may contain a filler such as carbon black.
  • resin excellent in durability such as silicone, urethane, polysulfide, can be used, for example.
  • the primary seal material can also be protected by using such a secondary seal material.
  • the manufacturing method of the multilayer glass 1 is not specifically limited, For example, it can manufacture by the following method.
  • first to third glass plates 2 to 4 are prepared.
  • the first to third glass plates 2 to 4 may be manufactured by a conventionally known manufacturing method, or commercially available products may be used.
  • the first low emission film 7 or the second low emission film is formed in advance on at least one of the main surface 2 a of the first glass plate 2 and the main surface 3 a of the second glass plate 3.
  • Form 8 The first low emission film 7 or the second low emission film 8 can be formed by, for example, a vapor deposition method or a sputtering method.
  • the first spacer 9 is prepared, and the primary sealing materials 11A and 11B are applied to both side surfaces of the first spacer 9 in contact with the first glass plate 2 and the third glass plate 4.
  • the first spacer 9 may be manufactured by a conventionally known method for manufacturing a spacer, or a commercially available product may be used. Subsequently, the side surface of the first spacer 9 provided with the primary sealing material 11A and the main surface 2a of the first glass plate 2 are pasted together. After that, the side surface of the first spacer 9 provided with the primary sealing material 11B and the main surface 4a of the third glass plate 4 are pasted together.
  • first glass plate 2 and the third glass plate 4 are bonded to the first spacer 9 using the primary sealing materials 11A and 11B, and the first glass plate 2 and the third glass plate 4 A first hollow layer 5 surrounded by the primary sealing materials 11A and 11B and the first spacer 9 is formed.
  • the secondary seal material 13 is filled between the first glass plate 2 and the third glass plate 4 on the side opposite to the first hollow layer 5 of the first spacer 9. Thereby, the first hollow layer 5 can be effectively sealed.
  • the second spacer 10 is prepared, and the primary sealing materials 12A and 12B are applied to both side surfaces of the second spacer 10 in contact with the second glass plate 3 and the third glass plate 4.
  • the 2nd spacer 10 may be manufactured by the manufacturing method of a conventionally well-known spacer, and may use a commercial item. Subsequently, the side surface of the second spacer 10 provided with the primary sealing material 12A and the main surface 3a of the second glass plate 3 are pasted together. After that, the side surface of the second spacer 10 provided with the primary sealing material 12B and the main surface 4b of the third glass plate 4 are pasted together.
  • the second glass plate 3 and the third glass plate 4 are bonded to the second spacer 10 using the primary sealing materials 12A and 12B, and the second glass plate 3 and the third glass plate 4 A second hollow layer 6 surrounded by the primary sealants 12A and 12B and the second spacer 10 is formed.
  • the secondary seal material 14 is filled between the second glass plate 3 and the third glass plate 4 on the side opposite to the second hollow layer 6 of the second spacer 10. Thereby, the second hollow layer 6 can be effectively sealed, and the multilayer glass 1 can be obtained.
  • FIG. 2 is a schematic cross-sectional view showing a multilayer glass according to a second embodiment of the present invention.
  • the first low emission film 7 is not provided on the major surface 2 a of the first glass plate 2.
  • the second low radiation film 8 is provided only on the major surface 3 a of the second glass plate 3. The other points are the same as in the first embodiment.
  • the low radiation film is provided on both of the first glass plate 2 and the second glass plate 3 which are the glass plates provided on the outermost side.
  • the low radiation film may be provided only on one of the glass plates.
  • the low radiation film is formed on both of the first glass plate 2 and the second glass plate 3 from the viewpoint of making the glass constituting the multi-layer glass more difficult to break and further enhancing the heat insulation. It is preferable to be provided.
  • the third glass plate 4 provided in the middle among the three glass plates 2 to 4 constituting the multilayer glass 21 is formed of crystallized glass. Therefore, the multilayer glass 21 is excellent in fire resistance.
  • FIG. 3 (a) is a schematic front view showing a sash window according to an embodiment of the present invention. Further, FIG. 3 (b) is a schematic cross-sectional view along the line AA in FIG. 3 (a).
  • the sash window 31 includes the multi-layer glass 1 and the frame 32.
  • the multilayer glass 1 is the multilayer glass 1 of the first embodiment described above.
  • a frame 32 is provided at the peripheral portion 1 a of the multilayer glass 1. More specifically, the frame 32 has a U-shape, and has a groove 33. In the groove portion 33, a part of the multilayer glass 1 including the peripheral portion 1a is fitted.
  • a heat resistant material 34 is filled in the gap between the peripheral portion 1 a of the multilayer glass 1 and the groove 33 of the frame 32.
  • a material which comprises the frame 32 For example, an aluminum alloy plate, a hot dip galvanized plate, etc. can be used. Moreover, as a material which comprises the heat resistant material 34, a silicone resin etc. can be used, for example. By filling such a heat-resistant material in the gap between the peripheral portion 1a of the multilayer glass 1 and the groove 33 of the frame 32, it is possible to more reliably block the flame and smoke at the time of fire occurrence. It is possible to suppress the spread of fire more effectively.
  • the sash window 31 of the present embodiment is provided with the above-described multilayer glass 1, it is excellent in fire resistance.
  • the double glazing and sash window of this invention are excellent in fire resistance, they can be used suitably for fire prevention equipment.
  • the double glazing and sash windows of the present invention can be more suitably used in the outer wall of a building for which fire protection performance is required.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ceramic Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Special Wing (AREA)

Abstract

Provided is insulated glazing having excellent fire retardant properties. This insulated glazing 1 comprises: a first glass pane 2 and a second glass pane 3 provided as the outermost layers of at least three or more glass panes 2 to 4; and a third glass pane 4 provided between the first glass pane 2 and second glass pane 3. The insulated glazing 1 is characterized in that the first glass pane 2 and/or the second glass pane 3 has a low-emissivity coating 7, 8 thereon, the coating being on a principal surface 2a, 3a on the side toward a cavity layer 5, 6, and in that the third glass pane 4 comprises crystallized glass.

Description

複層ガラス及びサッシ窓Double layer glass and sash window
　本発明は、少なくとも３枚以上のガラス板を備える、複層ガラス及び該複層ガラスを用いたサッシ窓に関する。 The present invention relates to a multilayer glass comprising at least three or more glass plates and a sash window using the multilayer glass.
　従来、防火性が求められる建物の外壁には、複層ガラスが用いられている。このような複層ガラスは、複数枚のガラス板が、スペーサーを介して間隔を隔てて配置されることにより形成されている。そして、複数のガラス板の周縁部は、シール材によって封止されており、それによってガラス板間に中空層が設けられている。また、防火設備に用いられる複層ガラスは、通常、網入りガラス、耐熱強化ガラス、低膨張防火ガラスなどの防火性を有するガラス板を少なくとも１枚以上備えている。 Conventionally, double glazing is used for the outer wall of a building for which fire resistance is required. Such a multilayer glass is formed by arranging a plurality of glass plates at intervals via a spacer. And the peripheral part of a several glass plate is sealed by the sealing material, and, thereby, the hollow layer is provided between glass plates. In addition, the multilayer glass used for fire protection equipment usually comprises at least one glass sheet having fire resistance such as netted glass, heat-resistant tempered glass, low expansion fire-resistant glass and the like.
　例えば、下記の特許文献１には、３枚のガラス板（第１～第３のガラス板）により構成されている複層ガラスが開示されている。特許文献１において、第１のガラス板及び第２のガラス板は、スペーサーを介して隔置されており、その間には第１の中空層が設けられている。また、第２のガラス板及び第３のガラス板も、スペーサーを介して隔置されており、その間には第２の中空層が設けられている。 For example, Patent Document 1 below discloses a double-layered glass composed of three glass plates (first to third glass plates). In patent document 1, the 1st glass plate and the 2nd glass plate are spaced apart via the spacer, and the 1st hollow layer is provided in the meantime. In addition, the second glass plate and the third glass plate are also spaced apart via a spacer, and a second hollow layer is provided therebetween.
　特許文献１では、第１のガラス板が、防火ガラス板で構成されており、第２のガラス板及び第３のガラス板が、防火ガラス板でないガラス板により構成されている。また、第３のガラス板の中間層側の内面には、耐熱Ｌｏｗ－Ｅ（Ｌｏｗ－Ｅｍｉｓｓｉｖｉｔｙ）膜が形成されている。 In patent document 1, the 1st glass plate is comprised by the fire prevention glass plate, and the 2nd glass plate and the 3rd glass plate are comprised by the glass plate which is not a fire prevention glass plate. In addition, a heat-resistant low-e (low-emissivity) film is formed on the inner surface of the third glass plate on the intermediate layer side.
特開２０１４－１３３６７５号公報JP, 2014-133675, A
　近年、防火設備に用いられる複層ガラスには、より一層の高い防火性が求められている。しかしながら、特許文献１のような複層ガラスにおいても、防火性がなお十分でなかった。 In recent years, even higher fire resistance is required for multi-layer glass used for fire protection equipment. However, even in the case of the multi-layer glass as disclosed in Patent Document 1, the fire resistance is still insufficient.
　本発明は、上記のような事情に鑑みてなされたものであり、防火性に優れる、複層ガラス及び該複層ガラスを用いたサッシ窓を提供することを目的とする。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a double glazing excellent in fire resistance and a sash window using the double glazing.
　本発明の複層ガラスは、互いに対向しており、スペーサーを介して間隔を隔てて配置されている、少なくとも３枚以上のガラス板を備え、前記少なくとも３枚以上のガラス板の周縁部が、シール材によって封止されることにより、前記ガラス板間にそれぞれ中空層が設けられている、複層ガラスであって、前記少なくとも３枚以上のガラス板のうち、最も外側に設けられている第１のガラス板及び第２のガラス板と、前記第１のガラス板及び前記第２のガラス板の間に設けられている、第３のガラス板と、を備え、前記第１のガラス板及び前記第２のガラス板のうち、少なくとも一方のガラス板の前記中空層側の主面上に、低放射膜が設けられており、前記第３のガラス板が、結晶化ガラスにより構成されていることを特徴としている。 The multilayer glass of the present invention comprises at least three or more glass plates facing each other and spaced apart via a spacer, and the peripheral portion of the at least three or more glass plates is A multi-layered glass in which hollow layers are provided between the glass plates by being sealed with a sealing material, and the outermost of the at least three glass plates is provided. A first glass plate and a second glass plate, and a third glass plate provided between the first glass plate and the second glass plate, the first glass plate and the first glass plate The low radiation film is provided on the main surface on the hollow layer side of at least one of the two glass plates, and the third glass plate is made of crystallized glass. It is characterized.
　本発明の複層ガラスは、前記複層ガラスが、建物の外壁の少なくとも一部に用いられ、前記第１のガラス板が屋外側に設けられており、前記第２のガラス板が屋内側に設けられていることが好ましい。 In the multilayer glass of the present invention, the multilayer glass is used for at least a part of the outer wall of a building, the first glass plate is provided on the outdoor side, and the second glass plate is on the indoor side It is preferable to be provided.
　本発明の複層ガラスは、前記第１のガラス板及び前記第２のガラス板のうち、双方のガラス板の前記中空層側の主面上に、前記低放射膜が設けられていることが好ましい。 In the double-glazed glass of the present invention, the low emission film is provided on the main surface on the hollow layer side of both glass plates of the first glass plate and the second glass plate. preferable.
　本発明の複層ガラスは、前記低放射膜が、銀を含むことが好ましい。 In the multilayer glass of the present invention, the low emission film preferably contains silver.
　本発明の複層ガラスは、防火設備に用いられることが好ましい。 The multilayer glass of the present invention is preferably used for fire protection equipment.
　本発明のサッシ窓は、本発明に従って構成される複層ガラスと、前記複層ガラスの周縁部に設けられている枠体と、を備えることを特徴としている。 The sash window of the present invention is characterized by comprising a double glazing configured according to the present invention, and a frame provided at the periphery of the double glazing.
　本発明によれば、防火性に優れる、複層ガラス及び該複層ガラスを用いたサッシ窓を提供することができる。 According to the present invention, it is possible to provide a double glazing excellent in fire resistance and a sash window using the double glazing.
図１は、本発明の第１の実施形態に係る複層ガラスを示す模式的断面図である。FIG. 1 is a schematic cross-sectional view showing a multilayer glass according to a first embodiment of the present invention. 図２は、本発明の第２の実施形態に係る複層ガラスを示す模式的断面図である。FIG. 2 is a schematic cross-sectional view showing a multilayer glass according to a second embodiment of the present invention. 図３（ａ）は、本発明の一実施形態に係るサッシ窓を示す模式的正面図であり、図３（ｂ）は、図３（ａ）中のＡ－Ａ線に沿う模式的断面図である。Fig.3 (a) is a typical front view which shows the sash window which concerns on one Embodiment of this invention, FIG.3 (b) is typical sectional drawing in alignment with the AA in FIG. 3 (a). It is.
　以下、好ましい実施形態について説明する。但し、以下の実施形態は単なる例示であり、本発明は以下の実施形態に限定されるものではない。また、各図面において、実質的に同一の機能を有する部材は同一の符号で参照する場合がある。 Hereinafter, preferred embodiments will be described. However, the following embodiments are merely illustrative, and the present invention is not limited to the following embodiments. In each drawing, members having substantially the same functions may be referred to by the same reference numerals.
　［複層ガラス］
　（第１の実施形態）
　図１は、本発明の第１の実施形態に係る複層ガラスを示す模式的断面図である。図１に示すように、複層ガラス１は、第１のガラス板２、第２のガラス板３、及び第３のガラス板４を備える。第１のガラス板２及び第２のガラス板３は、最も外側のガラス板である。また、第１のガラス板２及び第２のガラス板３の間には、第３のガラス板４が設けられている。このように、複層ガラス１は、３枚のガラス板からなり、第１のガラス板２及び第２のガラス板３が外側のガラス板であり、第３のガラス板４が中間のガラス板である。なお、本発明においては、複層ガラス１が４枚以上のガラス板により構成されていてもよい。 [Multilayer glass]
First Embodiment
FIG. 1 is a schematic cross-sectional view showing a multilayer glass according to a first embodiment of the present invention. As shown in FIG. 1, the multilayer glass 1 includes a first glass plate 2, a second glass plate 3, and a third glass plate 4. The first glass plate 2 and the second glass plate 3 are the outermost glass plates. Further, a third glass plate 4 is provided between the first glass plate 2 and the second glass plate 3. Thus, the multilayer glass 1 is composed of three glass plates, and the first glass plate 2 and the second glass plate 3 are outer glass plates, and the third glass plate 4 is an intermediate glass plate. It is. In the present invention, the multilayer glass 1 may be constituted by four or more glass plates.
　本実施形態において、複層ガラス１は、建物の外壁の少なくとも一部に用いられている。もっとも、複層ガラス１は、建物の外壁以外の部分に設けられていてもよいし、設けられる位置は特に限定されない。本実施形態において、第１のガラス板２は、屋外側に設けられている。他方、第２のガラス板３は、屋内側に設けられている。 In the present embodiment, the multilayer glass 1 is used for at least a part of the outer wall of a building. However, the multilayer glass 1 may be provided in parts other than the outer wall of a building, and the provided position is not particularly limited. In the present embodiment, the first glass plate 2 is provided on the outdoor side. On the other hand, the second glass plate 3 is provided on the indoor side.
　第１のガラス板２及び第３のガラス板４は、互いに対向するように設けられている。より具体的には、第１のガラス板２の主面２ａが、第３のガラス板４の主面４ａと対向するように設けられている。第１のガラス板２及び第３のガラス板４は、第１のスペーサー９を介して、間隔を隔てて設けられている。 The first glass plate 2 and the third glass plate 4 are provided to face each other. More specifically, the major surface 2 a of the first glass plate 2 is provided to face the major surface 4 a of the third glass plate 4. The first glass plate 2 and the third glass plate 4 are provided at an interval via the first spacer 9.
　第１のガラス板２の主面２ａは、一次シール材１１Ａにより第１のスペーサー９と接合されている。第３のガラス板４の主面４ａも同様に、一次シール材１１Ｂにより第１のスペーサー９と接合されている。 The main surface 2a of the first glass plate 2 is joined to the first spacer 9 by the primary sealing material 11A. Similarly, the main surface 4a of the third glass plate 4 is joined to the first spacer 9 by the primary seal material 11B.
　また、第１のガラス板２の主面２ａにおける周縁部２ａ１と、第３のガラス板４の主面４ａにおける周縁部４ａ１とは、二次シール材１３により直接接合されている。より具体的には、二次シール材１３は、一次シール材１１Ａ，１１Ｂや第１のスペーサー９よりも、複層ガラス１の端面１Ａ側に設けられており、第１のガラス板２、第３のガラス板４、及び第１のスペーサー９で区画される部分に充填されている。 Further, the peripheral edge portion 2 a 1 of the main surface 2 a of the first glass plate 2 and the peripheral edge portion 4 a 1 of the main surface 4 a of the third glass plate 4 are directly joined by the secondary sealing material 13. More specifically, the secondary sealing material 13 is provided closer to the end face 1A of the multilayer glass 1 than the primary sealing materials 11A and 11B and the first spacer 9, and the first glass plate 2, the first The portion divided by the third glass plate 4 and the first spacer 9 is filled.
　従って、第１のガラス板２、第３のガラス板４及び第１のスペーサー９間は、一次シール材１１Ａ，１１Ｂ及び二次シール材１３により封止されている。それによって、第１のガラス板２、第３のガラス板４、及び第１のスペーサー９間に、第１の中空層５が形成されている。なお、本実施形態において、第１の中空層５は、乾燥空気が充填されている空気層である。もっとも、第１の中空層５内には、アルゴンガスや、クリプトンガスなどのガスが充填されていてもよい。 Therefore, the first sealing material 11A, 11B and the secondary sealing material 13 seal between the first glass plate 2, the third glass plate 4 and the first spacer 9. Thereby, the first hollow layer 5 is formed between the first glass plate 2, the third glass plate 4 and the first spacer 9. In the present embodiment, the first hollow layer 5 is an air layer filled with dry air. However, the first hollow layer 5 may be filled with a gas such as argon gas or krypton gas.
　なお、本実施形態においては、第１のガラス板２の主面２ａ上に第１の低放射膜７が設けられている。第１の低放射膜７は、第１の中空層５に臨むように設けられている。本実施形態において、第１の低放射膜７を構成する材料は、銀である。もっとも、本発明において、第１の低放射膜７は、酸化スズ、ＩＴＯなどの他の材料によって構成されていてもよい。 In the present embodiment, the first low emission film 7 is provided on the major surface 2 a of the first glass plate 2. The first low emission film 7 is provided to face the first hollow layer 5. In the present embodiment, the material constituting the first low emission film 7 is silver. However, in the present invention, the first low emission film 7 may be made of another material such as tin oxide or ITO.
　また、第３のガラス板４は、第２のガラス板３とも対向するように設けられている。より具体的には、第２のガラス板３の主面３ａが、第３のガラス板４の主面４ｂと対向するように設けられている。第３のガラス板４の主面４ｂは、第３のガラス板４の主面４ａとは反対側の主面である。従って、第３のガラス板の主面４ｂは、第１のガラス板２とは反対側に設けられている。第２のガラス板３及び第３のガラス板４は、第２のスペーサー１０を介して、間隔を隔てて設けられている。 In addition, the third glass plate 4 is provided to face the second glass plate 3 as well. More specifically, the major surface 3 a of the second glass plate 3 is provided to face the major surface 4 b of the third glass plate 4. The major surface 4 b of the third glass plate 4 is the major surface opposite to the major surface 4 a of the third glass plate 4. Therefore, the main surface 4 b of the third glass plate is provided on the opposite side to the first glass plate 2. The second glass plate 3 and the third glass plate 4 are provided at an interval via the second spacer 10.
　第２のガラス板３の主面３ａは、一次シール材１２Ａにより第２のスペーサー１０と接合されている。第３のガラス板４の主面４ｂも同様に、一次シール材１２Ｂにより第２のスペーサー１０と接合されている。 The main surface 3a of the second glass plate 3 is bonded to the second spacer 10 by the primary sealing material 12A. Similarly, the main surface 4b of the third glass plate 4 is joined to the second spacer 10 by the primary sealing material 12B.
　また、第２のガラス板３の主面３ａにおける周縁部３ａ１と、第３のガラス板４の主面４ｂにおける周縁部４ｂ１とは、二次シール材１４により直接接合されている。より具体的に、二次シール材１４は、第２のスペーサー１０よりも、複層ガラス１の端面１Ａ側に設けられており、第２のガラス板３、第３のガラス板４、及び第２のスペーサー１０により区画される部分に充填されている。 Further, the peripheral edge portion 3a1 of the main surface 3a of the second glass plate 3 and the peripheral edge portion 4b1 of the main surface 4b of the third glass plate 4 are directly joined by the secondary seal member 14. More specifically, the secondary sealing material 14 is provided closer to the end face 1A of the multilayer glass 1 than the second spacer 10, and the second glass plate 3, the third glass plate 4, and the third The portion divided by the two spacers 10 is filled.
　従って、第２のガラス板３、第３のガラス板４、及び第２のスペーサー１０間は、一次シール材１２Ａ，１２Ｂ及び二次シール材１４によって封止されている。それによって、第２のガラス板３、第３のガラス板４及び第２のスペーサー１０間に、第２の中空層６が形成されている。なお、本実施形態において、第２の中空層６は、空気層である。空気層には、乾燥空気が封入されている。もっとも、第２の中空層６内には、アルゴンガスや、クリプトンガスなどのガスが封入されていてもよい。 Therefore, the space between the second glass plate 3, the third glass plate 4 and the second spacer 10 is sealed by the primary sealing materials 12 A and 12 B and the secondary sealing material 14. Thereby, the second hollow layer 6 is formed between the second glass plate 3, the third glass plate 4 and the second spacer 10. In the present embodiment, the second hollow layer 6 is an air layer. Dry air is enclosed in the air layer. However, in the second hollow layer 6, a gas such as argon gas or krypton gas may be enclosed.
　なお、本実施形態においては、第２のガラス板３の主面３ａ上に第２の低放射膜８が設けられている。第２の低放射膜８は、第２の中空層６に臨むように設けられている。本実施形態において、第２の低放射膜８を構成する材料は、銀である。もっとも、本発明において、第２の低放射膜８は、酸化スズ、ＩＴＯなどの他の材料によって構成されていてもよい。 In the present embodiment, the second low radiation film 8 is provided on the major surface 3 a of the second glass plate 3. The second low emission film 8 is provided to face the second hollow layer 6. In the present embodiment, the material constituting the second low emission film 8 is silver. However, in the present invention, the second low emission film 8 may be made of another material such as tin oxide or ITO.
　本実施形態において、第１のガラス板２及び第２のガラス板３は、通常のフロートガラスにより構成されている。もっとも、第１のガラス板２や第２のガラス板３は、他のガラスにより構成されていてもよい。また、第１のガラス板２及び第２のガラス板３は、合わせガラスであってもよい。 In the present embodiment, the first glass plate 2 and the second glass plate 3 are made of ordinary float glass. However, the first glass plate 2 and the second glass plate 3 may be made of other glass. The first glass plate 2 and the second glass plate 3 may be laminated glass.
　一方、第３のガラス板４は、耐熱性を有する結晶化ガラスにより構成されている。このような耐熱結晶化ガラスとしては、例えば、β－石英固溶体の結晶が析出した透明な結晶化ガラスを用いることができる。耐熱結晶化ガラスの平均線膨張係数は、３０℃～７５０℃の温度範囲において、－１０／Ｋ～１０×１０－７／Ｋの範囲内にあることが好ましい。このような耐熱結晶化ガラスを用いると、万一の火災発生時に消火活動で急冷された場合においても、第３のガラス板４をより一層破損し難くすることができる。なお、第３のガラス板４は、少なくとも１枚の結晶化ガラスを含む合わせガラスであってもよい。 On the other hand, the third glass plate 4 is made of crystallized glass having heat resistance. As such a heat-resistant crystallized glass, for example, a transparent crystallized glass in which crystals of β-quartz solid solution are precipitated can be used. The average linear expansion coefficient of the heat-resistant crystallized glass is preferably in the range of −10 / K to 10 × 10 −7 / K in the temperature range of 30 ° C. to 750 ° C. When such a heat-resistant crystallized glass is used, the third glass plate 4 can be made more difficult to be damaged even if it is quenched by fire extinguishing activity when a fire occurs. The third glass plate 4 may be a laminated glass including at least one crystallized glass.
　このように、本実施形態においては、複層ガラス１を構成する３枚のガラス板のうち、中間に設けられている第３のガラス板４が、結晶化ガラスにより構成されている。そのため、万が一の火災発生時に複層ガラス１が加熱され、外側の第１のガラス板２や第２のガラス板３が破損したとしても、中間に設けられている第３のガラス板４は、破損や脱落が生じ難い。従って、第３のガラス板４により遮炎することができ、複層ガラス１の防火性を高めることができる。複層ガラス１は、防火性に優れているので、大型化を図ることが可能となる。 Thus, in this embodiment, the 3rd glass plate 4 provided in the middle among the three glass plates which comprise the multilayer glass 1 is comprised with crystallized glass. Therefore, even if the double-glazed glass 1 is heated in the event of a fire and the first glass plate 2 and the second glass plate 3 on the outer side are broken, the third glass plate 4 provided in the middle is It is hard to cause breakage or dropout. Therefore, the third glass plate 4 can be used to shield the light, and the fire resistance of the multilayer glass 1 can be enhanced. Since the double glazing 1 is excellent in fire resistance, it is possible to achieve enlargement.
　また、平均線膨張係数が上記の範囲内にある耐熱結晶化ガラスを第３のガラス板４に用いた場合は、消火活動で急冷された場合においても、第３のガラス板４をより一層割れ難くすることができる。よって、この場合、複層ガラス１の防火性をより一層高めることができる。 Further, when the heat-resistant crystallized glass having an average linear expansion coefficient in the above range is used for the third glass plate 4, the third glass plate 4 is further cracked even when quenched by the fire extinguishing activity. It can be difficult. Therefore, in this case, the fire resistance of the multilayer glass 1 can be further enhanced.
　本実施形態では、中間の第３のガラス板４が結晶化ガラスにより構成されているので、外側の第１のガラス板２や第２のガラス板３が結晶化ガラスにより構成されている場合と比較して製造コストを安くすることができる。 In this embodiment, since the middle third glass plate 4 is made of crystallized glass, the case where the outer first glass plate 2 and the second glass plate 3 are made of crystallized glass and The manufacturing cost can be reduced by comparison.
　また、第３のガラス板４が結晶化ガラスにより構成されているので、風冷強化ガラスなどの強化ガラスを用いた場合より、納期を短くすることもできる。加えて、第３のガラス板４の厚みＴ１を薄くしても、十分な防火性を発現することができる。従って、製造コストを抑えつつ大型化を図ることができる。 Moreover, since the 3rd glass plate 4 is comprised by crystallized glass, delivery time can also be shortened compared with the case where tempered glass, such as a wind-cooling tempered glass, is used. In addition, even by reducing the thickness T 1 of the third glass plate 4, it is possible to exhibit a sufficient fire resistance. Therefore, the enlargement can be achieved while suppressing the manufacturing cost.
　また、第３のガラス板４の厚みＴ１を薄くすることができるので、複層ガラス１全体の厚みＴを厚くせずとも、第１の中空層５及び第２の中空層６の厚みを厚くすることができ、それによって複層ガラス１の断熱性を高めることができる。 Further, it is possible to reduce the thickness T 1 of the third glass plate 4, without increasing the double glazing 1 overall thickness T, a first hollow layer 5 and the second thickness of the hollow layer 6 The thickness can be increased, whereby the thermal insulation of the multilayer glass 1 can be enhanced.
　本発明において、第３のガラス板４の厚みは、好ましくは２ｍｍ以上、より好ましくは３ｍｍ以上、好ましくは５ｍｍ以下、より好ましくは４ｍｍ以下である。第３のガラス板４の厚みが、上記下限以上である場合、複層ガラス１の防火性をより一層高めることができる。一方、第３のガラス板４の厚みが、上記上限以下である場合、第１の中空層５及び第２の中空層６の厚みをより一層大きくすることができ、それによって複層ガラス１の断熱性をより一層高めることができる。 In the present invention, the thickness of the third glass plate 4 is preferably 2 mm or more, more preferably 3 mm or more, preferably 5 mm or less, more preferably 4 mm or less. When the thickness of the third glass plate 4 is equal to or more than the above lower limit, the fire resistance of the multilayer glass 1 can be further enhanced. On the other hand, when the thickness of the third glass plate 4 is equal to or less than the above upper limit, the thicknesses of the first hollow layer 5 and the second hollow layer 6 can be further increased. Thermal insulation can be further enhanced.
　本発明においては、複層ガラス１全体の厚みＴに対する第３のガラス板４の厚みＴ１の比（Ｔ１／Ｔ）が、好ましくは０．０６以上、より好ましくは０．０９以上、好ましくは０．１９以下、より好ましくは０．１４以下である。比（Ｔ１／Ｔ）が、上記下限以上である場合、複層ガラス１の防火性をより一層高めることができる。一方、比（Ｔ１／Ｔ）が、上記上限以下である場合、第１の中空層５及び第２の中空層６の厚みをより一層大きくすることができ、それによって複層ガラス１の断熱性をより一層高めることができる。 In the present invention, the ratio (T 1 / T) of the thickness T 1 of the third glass plate 4 to the thickness T of the entire multilayer glass 1 is preferably at least 0.06, more preferably at least 0.09, preferably Is 0.19 or less, more preferably 0.14 or less. When the ratio (T 1 / T) is equal to or more than the above lower limit, the fire resistance of the multilayer glass 1 can be further enhanced. On the other hand, when the ratio (T 1 / T) is equal to or less than the above upper limit, the thicknesses of the first hollow layer 5 and the second hollow layer 6 can be further increased, whereby the heat insulation of the multilayer glass 1 is achieved. Sex can be further enhanced.
　本発明においては、複層ガラス１全体の厚みＴに対する第１の中空層５の厚みＴ２及び第２の中空層６の厚みＴ３の和の比（（Ｔ２＋Ｔ３）／Ｔ）が、好ましくは０．５２以上、より好ましくは０．６５以上、好ましくは０．７５以下、より好ましくは０．６９以下である。比（（Ｔ２＋Ｔ３）／Ｔ）が上記下限以上である場合、複層ガラス１の断熱性をより一層高めることができる。また、比（（Ｔ２＋Ｔ３）／Ｔ）が上記上限以下である場合、複層ガラス１の防火性をより一層高めることができる。 In the present invention, the ratio of the sum of the thickness T 2 and the thickness T 3 of the second hollow layer 6 of the first hollow layer 5 for double glazing 1 overall thickness T ((T 2 + T 3 ) / T) is Preferably it is 0.52 or more, More preferably, it is 0.65 or more, Preferably it is 0.75 or less, More preferably, it is 0.69 or less. When the ratio ((T 2 + T 3 ) / T) is equal to or more than the above lower limit, the heat insulation of the multilayer glass 1 can be further enhanced. In addition, when the ratio ((T 2 + T 3 ) / T) is less than or equal to the above upper limit, the fire resistance of the multilayer glass 1 can be further enhanced.
　以下、複層ガラス１などの本発明の複層ガラスを構成する各部材の詳細について説明する。 Hereinafter, the detail of each member which comprises the multilayer glass of this invention, such as the multilayer glass 1, is demonstrated.
　第１のガラス板及び第２のガラス板；
　第１のガラス板及び第２のガラス板としては、例えば、通常のフロートガラスを用いることができる。もっとも、本発明においては、第１のガラス板及び第２のガラス板が、風冷強化や化学強化により強化された強化ガラスや、倍強度ガラスであってもよい。製造コストをより一層低減させる観点から、第１のガラス板及び第２のガラス板は、フロートガラスであることが好ましい。なお、第１のガラス及び第２のガラス板は、合わせガラスであってもよい。 A first glass plate and a second glass plate;
For example, ordinary float glass can be used as the first glass plate and the second glass plate. However, in the present invention, the first glass plate and the second glass plate may be tempered glass reinforced by air cooling reinforcement or chemical strengthening, or double strength glass. From the viewpoint of further reducing the manufacturing cost, the first glass plate and the second glass plate are preferably float glass. The first glass and the second glass plate may be laminated glass.
　低放射膜；
　低放射膜は、熱線を反射させるためのＬｏｗ－Ｅ（Ｌｏｗ－Ｅｍｉｓｓｉｖｉｔｙ）膜である。従って、低放射膜を設けることにより、万が一の火災の際、ガラス板をより一層割れ難くすることができる。 Low radiation membrane;
The low emission film is a low-e (low-emissivity) film for reflecting heat rays. Therefore, by providing the low radiation film, the glass plate can be made more difficult to break in the event of a fire.
　低放射膜を構成する材料としては、例えば、銀や、酸化スズ、ＩＴＯなどを用いることができる。遮熱性や断熱性をより一層高める観点から、低放射膜を構成する金属は、銀であることが好ましい。低放射膜は、例えば、蒸着法やスパッタリング法により形成することができる。 As a material which comprises a low radiation film | membrane, silver, a tin oxide, ITO etc. can be used, for example. From the viewpoint of further enhancing the heat shielding property and the heat insulating property, it is preferable that the metal constituting the low emission film is silver. The low emission film can be formed, for example, by vapor deposition or sputtering.
　第３のガラス板；
　第３のガラス板は、耐熱性を有する結晶化ガラスにより構成されている。このような耐熱結晶化ガラスとしては、例えば、β－石英固溶体の結晶が析出した透明な結晶化ガラスを用いることができる。耐熱結晶化ガラスの平均線膨張係数は、３０℃～７５０℃の温度範囲において、－１０／Ｋ～１０×１０－７／Ｋの範囲内にあることが好ましい。このような結晶化ガラスを用いると、万一の火災発生時に、消火活動の散水で急冷された場合においても、第３のガラス板をより一層破損し難くすることができる。なお、第３のガラス板は、少なくとも１枚の結晶化ガラスを含む合わせガラスであってもよい。 Third glass plate;
The third glass plate is made of crystallized glass having heat resistance. As such a heat-resistant crystallized glass, for example, a transparent crystallized glass in which crystals of β-quartz solid solution are precipitated can be used. The average linear expansion coefficient of the heat-resistant crystallized glass is preferably in the range of −10 / K to 10 × 10 −7 / K in the temperature range of 30 ° C. to 750 ° C. When such a crystallized glass is used, the third glass plate can be made more difficult to be damaged even in the event of a fire, even when the water is quenched rapidly with fire extinguishing activity. The third glass plate may be a laminated glass containing at least one crystallized glass.
　耐熱結晶化ガラスは、組成として、ＳｉＯ２　６０質量％～７０質量％、Ａｌ２Ｏ３　１７質量％～２７質量％、Ｌｉ２Ｏ　３質量％～６質量％、ＺｒＯ２　１質量％～３質量％、ＴｉＯ２　１質量％～３質量％を含有することが好ましい。 Resistant crystallized glass, a composition, SiO 2 60 wt% to 70 wt%, Al 2 O 3 17 wt% to 27 wt%, Li 2 O 3 wt% to 6 wt%, ZrO 2 1 wt% to 3 wt It is preferable to contain 1% by mass to 3% by mass of TiO 2 .
　また、組成として、ＳｉＯ２　６０質量％～７０質量％、Ａｌ２Ｏ３　１７質量％～２７質量％、Ｌｉ２Ｏ　３質量％～６質量％、Ｎａ２Ｏ　０．０５質量％～１質量％、Ｋ２Ｏ　０．１質量％～１質量％、ＺｒＯ２　１質量％～３質量％、ＴｉＯ２　１質量％～３質量％、ＭｇＯ　０．１質量％～０．９質量％、Ｐ２Ｏ５　０．０５質量％～２質量％、Ａｓ２Ｏ３　０質量％～２質量％、Ｓｂ２Ｏ３　０質量％～２質量％、ＳｎＯ２　０質量％～２質量％を含有することがより好ましい。この組成であれば、耐熱結晶化ガラスの平均線熱膨張係数を－１０／Ｋ～１０×１０－７／Ｋの範囲とすることができる。以下、このような耐熱結晶化ガラスの各組成についての詳細を説明する。 Further, a composition, SiO 2 60 wt% to 70 wt%, Al 2 O 3 17 wt% to 27 wt%, Li 2 O 3 wt% to 6 wt%, Na 2 O 0.05 wt% to 1 wt% , K 2 O 0.1% by mass to 1% by mass, ZrO 2 1% by mass to 3% by mass, TiO 2 1% by mass to 3% by mass, MgO 0.1% by mass to 0.9% by mass, P 2 O 5 0.05% by mass to 2% by mass, As 2 O 3 0% by mass to 2% by mass, Sb 2 O 3 0% by mass to 2% by mass, and SnO 2 0% by mass to 2% by mass preferable. With this composition, the average linear thermal expansion coefficient of the heat-resistant crystallized glass can be in the range of −10 / K to 10 × 10 −7 / K. Hereinafter, the detail about each composition of such a heat-resistant crystallized glass is demonstrated.
　ＳｉＯ２は、網目状のネットワーク構造を形成するとともに結晶を構成する成分である。ＳｉＯ２の含有量が６０質量％より少ないと、平均線膨張係数が高くなるとともに機械的強度も低くなる場合がある。一方、７０質量％より多いと、ガラスの溶解が困難となり、泡や失透物等の欠陥が発生する場合がある。ＳｉＯ２の含有量は、６４質量％～６６質量％であることがより好ましい。これにより、所定の平均線膨張係数をより一層確実に維持するとともに、ガラスの透明性もより一層確実に維持することができる。 SiO 2 is a component which forms a network while forming a network structure. When the content of SiO 2 is less than 60% by mass, the average linear expansion coefficient may be high and the mechanical strength may be low. On the other hand, if it is more than 70% by mass, melting of the glass becomes difficult, and defects such as bubbles and devitrified substances may occur. The content of SiO 2 is more preferably 64% by mass to 66% by mass. As a result, the predetermined average linear expansion coefficient can be maintained more reliably, and the transparency of the glass can be maintained more reliably.
　Ａｌ２Ｏ３は、結晶を構成する成分である。Ａｌ２Ｏ３の含有量が１７質量％より少ないと、ガラスの失透性が強くなるとともに化学耐久性が低下する場合がある。一方、２７質量％より多いと、ガラスの粘度が高くなりすぎて均一なガラスが得られなくなる場合がある。Ａｌ２Ｏ３含有量は、２１質量％～２３質量％であることがより好ましい。これにより、化学耐久性をより一層確実に維持するとともに、ガラスの透明性もより一層確実に維持することができる。 Al 2 O 3 is a component that constitutes a crystal. When the content of Al 2 O 3 is less than 17% by mass, the devitrification of the glass may be strengthened and the chemical durability may be reduced. On the other hand, if the content is more than 27% by mass, the viscosity of the glass may be too high to obtain a uniform glass. The Al 2 O 3 content is more preferably 21% by mass to 23% by mass. As a result, the chemical durability can be more reliably maintained, and the transparency of the glass can be maintained even more reliably.
　Ｌｉ２Ｏは、結晶を構成する成分である。Ｌｉ２Ｏの含有量が３質量％より少ないと、所望の結晶を形成することが難しくなるとともに溶解性も悪くなる場合がある。一方、６質量％より多いと、ガラスの失透性が強くなる場合がある。Ｌｉ２Ｏの含有量は、３質量％～５質量％であることがより好ましい。これにより、所望の結晶化を形成して耐熱性をより一層高めることができるとともに、ガラスの透明性もより一層確実に維持することができる。 Li 2 O is a component that constitutes a crystal. When the content of Li 2 O is less than 3% by mass, it may be difficult to form a desired crystal and the solubility may be deteriorated. On the other hand, if it is more than 6% by mass, the devitrification of the glass may become strong. The content of Li 2 O is more preferably 3% by mass to 5% by mass. As a result, desired crystallization can be formed to further enhance the heat resistance, and the transparency of the glass can be more reliably maintained.
　Ｎａ２Ｏは、ガラスの溶解性をより一層向上させる成分である。Ｎａ２Ｏの含有量が０．０５質量％より少ないと、所望の溶解性が得られない場合がある。一方、１質量％より多いと、ガラスの平均線膨張係数が大きくなる場合がある。Ｎａ２Ｏの含有量は、０．４質量％～０．６質量％であることがより好ましい。これにより、所定の平均線膨張係数をより一層確実に維持するとともに、ガラスの均一性をより一層確実に維持することができる。 Na 2 O is a component that further improves the solubility of glass. If the content of Na 2 O is less than 0.05% by mass, desired solubility may not be obtained. On the other hand, if it is more than 1% by mass, the average linear expansion coefficient of the glass may be increased. The content of Na 2 O is more preferably 0.4% by mass to 0.6% by mass. As a result, the predetermined average linear expansion coefficient can be maintained more reliably, and the uniformity of the glass can be maintained more reliably.
　Ｋ２Ｏは、ガラスの溶解性をより一層向上させる成分である。Ｋ２Ｏの含有量が０．１質量％より少ないと、所望の溶解性が得られない場合がある。一方、１質量％より多いと、ガラスの平均線膨張係数が大きくなる場合がある。Ｋ２Ｏの含有量は、０．２質量％～０．４質量％であることがより好ましい。これにより、所定の平均線膨張係数をより一層確実に維持するとともに、ガラスの均一性をより一層確実に維持することができる。 K 2 O is a component that further improves the solubility of glass. If the content of K 2 O is less than 0.1% by mass, desired solubility may not be obtained. On the other hand, if it is more than 1% by mass, the average linear expansion coefficient of the glass may be increased. The content of K 2 O is more preferably 0.2% by mass to 0.4% by mass. As a result, the predetermined average linear expansion coefficient can be maintained more reliably, and the uniformity of the glass can be maintained more reliably.
　なお、Ｎａ２Ｏ及びＫ２Ｏの合計含有量は、０．５質量％～２質量％であることが好ましい。Ｎａ２Ｏ及びＫ２Ｏの合計含有量が０．５質量％より少ないと、ガラスの溶解性が低下する場合があり、２質量％を超えると、ガラスの強度や耐熱性が低下する場合がある。 The total content of Na 2 O and K 2 O is preferably 0.5% by mass to 2% by mass. If the total content of Na 2 O and K 2 O is less than 0.5% by mass, the solubility of the glass may decrease, and if it exceeds 2% by mass, the strength and heat resistance of the glass may decrease. is there.
　ＺｒＯ２は、核形成剤として作用する成分である。ＺｒＯ２の含有量が１質量％より少ないと、安定して結晶化しない場合があるとともに、粗く大きい結晶が形成されることから、透明な結晶化ガラスを得ることが困難となる場合がある。一方、３質量％を超えると、ジルコニアの未分解物が生成し、ガラス中に失透物が発生する場合がある。 ZrO 2 is a component that acts as a nucleation agent. When the content of ZrO 2 is less than 1% by mass, stable crystallization may not be performed, and coarse large crystals are formed, which may make it difficult to obtain a transparent crystallized glass. On the other hand, if it exceeds 3% by mass, an undegraded product of zirconia may be generated, and a devitrified product may be generated in the glass.
　ＴｉＯ２は、核形成剤として作用する成分である。ＴｉＯ２の含有量が１質量％より少ないと結晶化の促進効果が得られず、所望の結晶が得られなくなる場合がある。一方、３質量％より多いと、液相温度が高くなることにより、成形作業が困難となる場合がある。さらに、耐熱結晶化ガラスが褐色に呈色して透明感が損なわれる場合がある。ＴｉＯ２の含有量は、１．３質量％～３質量％であることがより好ましい。これにより、所望の結晶化度を達成して耐熱性をより一層高めることができるとともに、ガラスの透明性もより一層確実に維持することができる。 TiO 2 is a component that acts as a nucleation agent. If the content of TiO 2 is less than 1% by mass, the effect of promoting crystallization can not be obtained, and a desired crystal may not be obtained. On the other hand, if the amount is more than 3% by mass, the liquid phase temperature may be high, which may make the forming operation difficult. Furthermore, the heat-resistant crystallized glass may turn brown and the transparency may be impaired. The content of TiO 2 is more preferably 1.3% by mass to 3% by mass. Thus, the desired crystallinity can be achieved to further enhance the heat resistance, and the transparency of the glass can be maintained more reliably.
　なお、ＺｒＯ２及びＴｉＯ２の合計含有量は、２．６質量％～５質量％であることが好ましい。ＺｒＯ２及びＴｉＯ２の合計含有量が２．６質量％より少ないと、結晶化の促進効果が得られず、機械的強度が低下する場合がある。一方、合計含有量が５質量％を超えると失透性が強くなり、均一な結晶化ガラスを得ることが困難となる場合がある。 The total content of ZrO 2 and TiO 2 is preferably 2.6% by mass to 5% by mass. If the total content of ZrO 2 and TiO 2 is less than 2.6% by mass, the effect of promoting crystallization can not be obtained, and the mechanical strength may be reduced. On the other hand, when the total content exceeds 5% by mass, the devitrification resistance becomes strong, and it may be difficult to obtain a uniform crystallized glass.
　Ｐ２Ｏ５は、核形成剤として含有するＺｒＯ２の難溶解性を改善する成分である。Ｐ２Ｏ５の含有量が０．０５質量％より少ないと、その改善効果が低下する場合がある。一方、２質量％より多いと、相分離し易くなるとともに結晶生成量が多くなり、透明性が低下する場合がある。Ｐ２Ｏ５の含有量は、１質量％～２質量％であることがより好ましい。これにより、所望の結晶化がより一層確実に得られるとともに、ガラスの透明性をより一層確実に維持することができる。 P 2 O 5 is a component that improves the low solubility of ZrO 2 contained as a nucleating agent. If the content of P 2 O 5 is less than 0.05% by mass, the improvement effect may be reduced. On the other hand, if the amount is more than 2% by mass, phase separation may be facilitated, the amount of crystal formation may be increased, and transparency may be reduced. The content of P 2 O 5 is more preferably 1% by mass to 2% by mass. As a result, desired crystallization can be obtained more reliably, and the transparency of the glass can be maintained more reliably.
　また、Ａｓ２Ｏ３、Ｓｂ２Ｏ３及びＳｎＯ２は清澄剤として添加され、その合計含有量は、０．１質量％～２質量％であることが好ましい。これにより、ガラスの溶解性、作業性、均一性をより一層向上させることができる。合計含有量が０．１質量％より少なくなると清澄効果が低下する場合があり、２質量％を超えると環境上好ましくない場合がある。Ａｓ２Ｏ３、Ｓｂ２Ｏ３及びＳｎＯ２のより好ましい合計含有量は、０．１質量％～１質量％である。 Further, As 2 O 3 , Sb 2 O 3 and SnO 2 are added as a fining agent, and the total content thereof is preferably 0.1% by mass to 2% by mass. Thereby, the solubility, the workability, and the uniformity of the glass can be further improved. When the total content is less than 0.1% by mass, the fining effect may be reduced, and when it exceeds 2% by mass, it may be environmentally unfavorably. A more preferable total content of As 2 O 3 , Sb 2 O 3 and SnO 2 is 0.1% by mass to 1% by mass.
　さらに、耐熱結晶化ガラスは、ＣａＯ、ＰｂＯ、Ｆ２、Ｃｌ２又はＣｅＯ２等の任意の成分を、各々０．５質量％～３質量％含有してもよい。 Furthermore, the heat-resistant crystallized glass may contain 0.5% by mass to 3% by mass of optional components such as CaO, PbO, F 2 , Cl 2 or CeO 2 .
　スペーサー；
　スペーサーは、例えば、アルミニウムやアルミニウムを含む合金などの金属や、ブチルゴムなどの樹脂により構成することができる。また、スペーサーは、内部に中空部が設けられていることが好ましい。中空部には、粒状のゼオライトなどの乾燥剤を充填させることができる。それによって、第１の中空層及び第２の中空層内の空気を乾燥させることができる。 spacer;
The spacer can be made of, for example, a metal such as aluminum or an alloy containing aluminum, or a resin such as butyl rubber. Moreover, it is preferable that a hollow part is provided in the inside of the spacer. The hollow portion can be filled with a desiccant such as particulate zeolite. Thereby, the air in the first hollow layer and the second hollow layer can be dried.
　一次シール材及び二次シール材；
　一次シール材としては、例えば、ブチルゴムからなる粘着剤を用いることが好ましい。一次シール材は、第１の中空層又は第２の中空層側に設けられているため、ブチルゴムを用いることにより、第１の中空層及び第２の中空層に湿気が浸入することを、より一層効果的に抑制することができる。なお、ブチルゴムは、架橋されていないことが望ましい。また、一次シール材としては、ポリイソブチレンからなる粘着剤を用いてもよい。また、このようなブチル系の粘着剤には、カーボンブラックなどのフィラーが含まれていてもよい。 Primary sealing material and secondary sealing material;
As a primary seal material, it is preferable to use the adhesive which consists of butyl rubber, for example. Since the primary sealing material is provided on the side of the first hollow layer or the second hollow layer, by using butyl rubber, it is possible to prevent moisture from entering the first hollow layer and the second hollow layer. It can be more effectively suppressed. The butyl rubber is preferably not crosslinked. Further, as the primary sealing material, an adhesive made of polyisobutylene may be used. In addition, such a butyl-based pressure-sensitive adhesive may contain a filler such as carbon black.
　二次シール材としては、例えば、シリコーン、ウレタン、ポリサルファイド等の耐久性に優れた樹脂を用いることができる。このような二次シール材を用いることで、一次シール材を保護することもできる。 As a secondary sealing material, resin excellent in durability, such as silicone, urethane, polysulfide, can be used, for example. The primary seal material can also be protected by using such a secondary seal material.
　以下、複層ガラス１の製造方法の一例について説明する。 Hereinafter, an example of the manufacturing method of the multilayer glass 1 is demonstrated.
　製造方法；
　複層ガラス１の製造方法は、特に限定されないが、例えば、以下の方法により製造することができる。 Production method;
Although the manufacturing method of the multilayer glass 1 is not specifically limited, For example, it can manufacture by the following method.
　まず、第１～第３のガラス板２～４を用意する。第１～第３のガラス板２～４は、従来公知の製造方法により製造してもよく、市販品を用いてもよい。なお、第１のガラス板２の主面２ａ及び第２のガラス板３の主面３ａのうち、少なくとも一方の主面上には、予め第１の低放射膜７又は第２の低放射膜８を形成する。第１の低放射膜７又は第２の低放射膜８は、例えば、蒸着法やスパッタリング法などにより形成することができる。 First, first to third glass plates 2 to 4 are prepared. The first to third glass plates 2 to 4 may be manufactured by a conventionally known manufacturing method, or commercially available products may be used. The first low emission film 7 or the second low emission film is formed in advance on at least one of the main surface 2 a of the first glass plate 2 and the main surface 3 a of the second glass plate 3. Form 8 The first low emission film 7 or the second low emission film 8 can be formed by, for example, a vapor deposition method or a sputtering method.
　次に、第１のスペーサー９を用意し、第１のスペーサー９の第１のガラス板２及び第３のガラス板４と接する両側面に一次シール材１１Ａ，１１Ｂを塗布する。なお、第１のスペーサー９は、従来公知のスペーサーの製造方法により製造してもよく、市販品を用いてもよい。続いて、一次シール材１１Ａが設けられた第１のスペーサー９の側面と第１のガラス板２の主面２ａを貼り合わせる。しかる後、一次シール材１１Ｂが設けられた第１のスペーサー９の側面と第３のガラス板４の主面４ａを貼り合わせる。それによって、一次シール材１１Ａ，１１Ｂを用いて、第１のガラス板２及び第３のガラス板４を第１のスペーサー９と接着させ、第１のガラス板２、第３のガラス板４、一次シール材１１Ａ，１１Ｂ、及び第１のスペーサー９によって囲まれた第１の中空層５を形成する。次に、第１のスペーサー９の第１の中空層５とは反対側の第１のガラス板２及び第３のガラス板４間に、二次シール材１３を充填させる。それによって、第１の中空層５を効果的に封止することができる。 Next, the first spacer 9 is prepared, and the primary sealing materials 11A and 11B are applied to both side surfaces of the first spacer 9 in contact with the first glass plate 2 and the third glass plate 4. The first spacer 9 may be manufactured by a conventionally known method for manufacturing a spacer, or a commercially available product may be used. Subsequently, the side surface of the first spacer 9 provided with the primary sealing material 11A and the main surface 2a of the first glass plate 2 are pasted together. After that, the side surface of the first spacer 9 provided with the primary sealing material 11B and the main surface 4a of the third glass plate 4 are pasted together. Thereby, the first glass plate 2 and the third glass plate 4 are bonded to the first spacer 9 using the primary sealing materials 11A and 11B, and the first glass plate 2 and the third glass plate 4 A first hollow layer 5 surrounded by the primary sealing materials 11A and 11B and the first spacer 9 is formed. Next, the secondary seal material 13 is filled between the first glass plate 2 and the third glass plate 4 on the side opposite to the first hollow layer 5 of the first spacer 9. Thereby, the first hollow layer 5 can be effectively sealed.
　同様に、第２のスペーサー１０を用意し、第２のスペーサー１０の第２のガラス板３及び第３のガラス板４と接する両側面に一次シール材１２Ａ，１２Ｂを塗布する。なお、第２のスペーサー１０は、従来公知のスペーサーの製造方法により製造してもよく、市販品を用いてもよい。続いて、一次シール材１２Ａが設けられた第２のスペーサー１０の側面と第２のガラス板３の主面３ａを貼り合わせる。しかる後、一次シール材１２Ｂが設けられた第２のスペーサー１０の側面と第３のガラス板４の主面４ｂを貼り合わせる。それによって、一次シール材１２Ａ，１２Ｂを用いて、第２のガラス板３及び第３のガラス板４を第２のスペーサー１０と接着させ、第２のガラス板３、第３のガラス板４、一次シール材１２Ａ，１２Ｂ、及び第２のスペーサー１０によって囲まれた第２の中空層６を形成する。次に、第２のスペーサー１０の第２の中空層６とは反対側の第２のガラス板３及び第３のガラス板４間に、二次シール材１４を充填させる。それによって、第２の中空層６を効果的に封止することができ、複層ガラス１を得ることができる。 Similarly, the second spacer 10 is prepared, and the primary sealing materials 12A and 12B are applied to both side surfaces of the second spacer 10 in contact with the second glass plate 3 and the third glass plate 4. In addition, the 2nd spacer 10 may be manufactured by the manufacturing method of a conventionally well-known spacer, and may use a commercial item. Subsequently, the side surface of the second spacer 10 provided with the primary sealing material 12A and the main surface 3a of the second glass plate 3 are pasted together. After that, the side surface of the second spacer 10 provided with the primary sealing material 12B and the main surface 4b of the third glass plate 4 are pasted together. Thereby, the second glass plate 3 and the third glass plate 4 are bonded to the second spacer 10 using the primary sealing materials 12A and 12B, and the second glass plate 3 and the third glass plate 4 A second hollow layer 6 surrounded by the primary sealants 12A and 12B and the second spacer 10 is formed. Next, the secondary seal material 14 is filled between the second glass plate 3 and the third glass plate 4 on the side opposite to the second hollow layer 6 of the second spacer 10. Thereby, the second hollow layer 6 can be effectively sealed, and the multilayer glass 1 can be obtained.
　（第２の実施形態）
　図２は、本発明の第２の実施形態に係る複層ガラスを示す模式的断面図である。図２に示すように、複層ガラス２１においては、第１のガラス板２の主面２ａ上に、第１の低放射膜７が設けられていない。複層ガラス２１においては、第２のガラス板３の主面３ａ上にのみ第２の低放射膜８が設けられている。その他の点は、第１の実施形態と同様である。 Second Embodiment
FIG. 2 is a schematic cross-sectional view showing a multilayer glass according to a second embodiment of the present invention. As shown in FIG. 2, in the multilayer glass 21, the first low emission film 7 is not provided on the major surface 2 a of the first glass plate 2. In the multilayer glass 21, the second low radiation film 8 is provided only on the major surface 3 a of the second glass plate 3. The other points are the same as in the first embodiment.
　このように、本発明においては、最も外側に設けられているガラス板である第１のガラス板２及び第２のガラス板３のうち、双方のガラス板に低放射膜が設けられていてもよく、一方のガラス板にのみ低放射膜が設けられていてもよい。もっとも、複層ガラスを構成するガラスをより一層割れ難くし、断熱性をより一層高める観点から、第１のガラス板２及び第２のガラス板３のうち、双方のガラス板に低放射膜が設けられていることが好ましい。 Thus, in the present invention, even if the low radiation film is provided on both of the first glass plate 2 and the second glass plate 3 which are the glass plates provided on the outermost side. The low radiation film may be provided only on one of the glass plates. However, the low radiation film is formed on both of the first glass plate 2 and the second glass plate 3 from the viewpoint of making the glass constituting the multi-layer glass more difficult to break and further enhancing the heat insulation. It is preferable to be provided.
　なお、本実施形態においても、複層ガラス２１を構成する３枚のガラス板２～４のうち、中間に設けられている第３のガラス板４が、結晶化ガラスにより構成されている。そのため、複層ガラス２１は、防火性に優れている。 Also in this embodiment, the third glass plate 4 provided in the middle among the three glass plates 2 to 4 constituting the multilayer glass 21 is formed of crystallized glass. Therefore, the multilayer glass 21 is excellent in fire resistance.
　［サッシ窓］
　図３（ａ）は、本発明の一実施形態に係るサッシ窓を示す模式的正面図である。また、図３（ｂ）は、図３（ａ）中のＡ－Ａ線に沿う模式的断面図である。 [Sash window]
FIG. 3 (a) is a schematic front view showing a sash window according to an embodiment of the present invention. Further, FIG. 3 (b) is a schematic cross-sectional view along the line AA in FIG. 3 (a).
　図３（ａ）及び図３（ｂ）に示すように、サッシ窓３１は、複層ガラス１と、枠体３２とを備える。複層ガラス１は、上述した第１の実施形態の複層ガラス１である。複層ガラス１の周縁部１ａに、枠体３２が設けられている。より具体的に、枠体３２は、コの字状の形状を有しており、溝部３３を有している。この溝部３３に、周縁部１ａを含む複層ガラス１の一部が嵌め込まれている。複層ガラス１の周縁部１ａと枠体３２の溝部３３との間の隙間には、耐熱性材料３４が充填されている。 As shown in FIGS. 3 (a) and 3 (b), the sash window 31 includes the multi-layer glass 1 and the frame 32. The multilayer glass 1 is the multilayer glass 1 of the first embodiment described above. A frame 32 is provided at the peripheral portion 1 a of the multilayer glass 1. More specifically, the frame 32 has a U-shape, and has a groove 33. In the groove portion 33, a part of the multilayer glass 1 including the peripheral portion 1a is fitted. A heat resistant material 34 is filled in the gap between the peripheral portion 1 a of the multilayer glass 1 and the groove 33 of the frame 32.
　枠体３２を構成する材料としては、特に限定されないが、例えば、アルミニウム合金板や、溶融亜鉛メッキ板などを用いることができる。また、耐熱性材料３４を構成する材料としては、例えば、シリコーン樹脂などを用いることができる。このような耐熱性材料を複層ガラス１の周縁部１ａと枠体３２の溝部３３との隙間に充填することにより、万一の火災発生時における炎や煙をより一層確実に遮断することができ、延焼をより一層効果的に抑制することができる。 Although it does not specifically limit as a material which comprises the frame 32, For example, an aluminum alloy plate, a hot dip galvanized plate, etc. can be used. Moreover, as a material which comprises the heat resistant material 34, a silicone resin etc. can be used, for example. By filling such a heat-resistant material in the gap between the peripheral portion 1a of the multilayer glass 1 and the groove 33 of the frame 32, it is possible to more reliably block the flame and smoke at the time of fire occurrence. It is possible to suppress the spread of fire more effectively.
　本実施形態のサッシ窓３１は、上述した複層ガラス１を備えているので、防火性に優れている。 Since the sash window 31 of the present embodiment is provided with the above-described multilayer glass 1, it is excellent in fire resistance.
　以上のように、本発明の複層ガラスやサッシ窓は、防火性に優れているので、防火設備に好適に用いることができる。特に、本発明の複層ガラスやサッシ窓は、防火性能が求められる建物の外壁により一層好適に用いることができる。 As mentioned above, since the double glazing and sash window of this invention are excellent in fire resistance, they can be used suitably for fire prevention equipment. In particular, the double glazing and sash windows of the present invention can be more suitably used in the outer wall of a building for which fire protection performance is required.
１，２１…複層ガラス
１Ａ…端面
２，３，４…第１，第２，第３のガラス板
２ａ，３ａ，４ａ，４ｂ…主面
１ａ，２ａ１，３ａ１，４ａ１，４ｂ１…周縁部
５，６…第１，第２の中空層
７，８…第１，第２の低放射膜
９，１０…第１，第２のスペーサー
１１Ａ，１１Ｂ，１２Ａ，１２Ｂ…一次シール材
１３，１４…二次シール材
３１…サッシ窓
３２…枠体
３３…溝部
３４…耐熱性材料 1, 21 ... double layer glass 1A ... end face 2, 3, 4 ... first, second, third glass plate 2a, 3a, 4a, 4b ... principal surface 1a, 2a1, 3a1, 4a1, 4b1 ... rim portion 5 , 6 ... first and second hollow layers 7, 8 ... first and second low radiation films 9, 10 ... first and second spacers 11A, 11B, 12A, 12B ... primary seal members 13, 14 ... Secondary seal 31 ... sash window 32 ... frame 33 ... groove 34 ... heat resistant material

Claims (6)

  1. 　互いに対向しており、スペーサーを介して間隔を隔てて配置されている、少なくとも３枚以上のガラス板を備え、前記少なくとも３枚以上のガラス板の周縁部が、シール材によって封止されることにより、前記ガラス板間にそれぞれ中空層が設けられている、複層ガラスであって、
    　前記少なくとも３枚以上のガラス板のうち、最も外側に設けられている第１のガラス板及び第２のガラス板と、
    　前記第１のガラス板及び前記第２のガラス板の間に設けられている、第３のガラス板と、
    を備え、
    　前記第１のガラス板及び前記第２のガラス板のうち、少なくとも一方のガラス板の前記中空層側の主面上に、低放射膜が設けられており、
    　前記第３のガラス板が、結晶化ガラスにより構成されている、複層ガラス。     At least three or more glass plates facing each other and spaced apart via a spacer, and the peripheral portions of the at least three or more glass plates are sealed by a sealing material A multi-layered glass in which hollow layers are provided between the glass plates, respectively;
    Among the at least three or more glass plates, a first glass plate and a second glass plate provided on the outermost side,
    A third glass plate provided between the first glass plate and the second glass plate;
    Equipped with
    A low emission film is provided on the main surface on the hollow layer side of at least one of the first glass plate and the second glass plate,
    The multilayer glass, wherein the third glass plate is made of crystallized glass.
  2. 　前記複層ガラスが、建物の外壁の少なくとも一部に用いられ、
    　前記第１のガラス板が屋外側に設けられており、
    　前記第２のガラス板が屋内側に設けられている、請求項１に記載の複層ガラス。     The multi-layered glass is used for at least a part of the outer wall of a building,
    The first glass plate is provided on the outdoor side,
    The double glazing according to claim 1, wherein the second glass plate is provided indoors.
  3. 　前記第１のガラス板及び前記第２のガラス板のうち、双方のガラス板の前記中空層側の主面上に、前記低放射膜が設けられている、請求項１又は２に記載の複層ガラス。 The compound according to claim 1 or 2, wherein the low radiation film is provided on the main surface of the first glass plate and the second glass plate on the hollow layer side of both glass plates. Layer glass.
  4. 　前記低放射膜が、銀を含む、請求項１～３のいずれか１項に記載の複層ガラス。 The double glazing according to any of the preceding claims, wherein the low emission film comprises silver.
  5. 　防火設備に用いられる、請求項１～４のいずれか１項に記載の複層ガラス。 The double glazing according to any one of claims 1 to 4, which is used for fire protection equipment.
  6. 　請求項１～５のいずれか１項に記載の複層ガラスと、
    　前記複層ガラスの周縁部に設けられている枠体と、
    を備える、サッシ窓。     The multilayer glass according to any one of claims 1 to 5;
    A frame provided at the periphery of the multi-layer glass,
    With a sash window.
PCT/JP2018/018848 2017-07-06 2018-05-16 Insulated glazing and sash window WO2019008912A1 (en)

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CN112208562A (en) * 2019-07-11 2021-01-12 中国航发北京航空材料研究院 High-performance light-weight passenger room side window for high-speed train
CN112208561A (en) * 2019-07-11 2021-01-12 中国航发北京航空材料研究院 High-heat-insulation-performance side window system for high-speed train

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JP2019094252A (en) * 2017-11-22 2019-06-20 株式会社エクセルシャノン Fireproof multiple glass
JP7141712B2 (en) * 2019-04-05 2022-09-26 中島硝子工業株式会社 Fireproof double glazing, fireproof glass units and windows of heating cookers
JP7141714B2 (en) * 2019-05-28 2022-09-26 中島硝子工業株式会社 Fire rated double glazing and fire rated glass units

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JPH0840747A (en) * 1994-07-29 1996-02-13 Asahi Glass Co Ltd Fireproof glass
JP2014133675A (en) * 2013-01-09 2014-07-24 Asahi Glass Co Ltd Double glazing
WO2014168219A1 (en) * 2013-04-11 2014-10-16 旭硝子株式会社 Fire-preventing multilayer glass

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JPH07330386A (en) * 1994-06-07 1995-12-19 Nippon Sheet Glass Co Ltd Multiple glass
JPH0840747A (en) * 1994-07-29 1996-02-13 Asahi Glass Co Ltd Fireproof glass
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WO2014168219A1 (en) * 2013-04-11 2014-10-16 旭硝子株式会社 Fire-preventing multilayer glass

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CN112208562A (en) * 2019-07-11 2021-01-12 中国航发北京航空材料研究院 High-performance light-weight passenger room side window for high-speed train
CN112208561A (en) * 2019-07-11 2021-01-12 中国航发北京航空材料研究院 High-heat-insulation-performance side window system for high-speed train
CN112208562B (en) * 2019-07-11 2022-03-15 中国航发北京航空材料研究院 High-performance light-weight passenger room side window for high-speed train
CN112208561B (en) * 2019-07-11 2022-03-15 中国航发北京航空材料研究院 High-heat-insulation-performance side window system for high-speed train

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