JP6576943B2 - Double glazing - Google Patents

Description

  The present invention relates to a multilayer glass including a spacer connected by a spacer connection member.

  From the viewpoint of heat insulation and soundproofing properties, double-layer glass is frequently used. The multilayer glass includes at least two glass plates and one or more spacers, and at least two glass plates are separated by the spacers. With this configuration, a space is formed between the glass plates. In the multilayer glass having a plurality of spacers, the plurality of spacers have a hollow portion, and the plurality of spacers are connected via the spacer connection member by inserting the spacer connection member into the hollow portion.

  Various proposals have been made regarding the connection between the spacer and the spacer connecting member. Patent Document 1 discloses a spacer connecting member including a latch element that latches with an inner side of a spacer having a hollow portion in order to hold the inserted spacer. Patent Document 2 discloses a spacer connection member having a fixing means that frictionally contacts the inside of a spacer having a hollow portion.

Japanese Patent No. 4931090 Japanese Patent No. 5508014

  However, in Patent Documents 1 and 2, since the inside of the spacer and the spacer connecting member are connected by a latch element or a fixing means that frictionally contacts, when the spacer connecting member is inserted into the spacer, the latch is located inside the spacer. There is a problem that cracks occur inside the spacer due to scratches or pressure of the connecting member. In addition, when a large force is applied to the spacer, there is a problem that the spacer and the spacer connecting member are separated.

  This invention is made | formed in view of such a situation, and it aims at providing the multilayer glass by which the spacer and the spacer connection member were connected reliably.

  The multilayer glass of one embodiment of the present invention includes a first glass plate, a second glass plate opposed to the first glass plate, the first glass plate, and the second glass plate. In order to form a hollow layer between the first glass plate and the second glass plate, a plurality of spacers having a space and a spacer connecting the end portions of the spacers A spacer connecting member comprising an L-shaped insertion portion inserted into the space portion of the spacer and a main body portion; and the spacer and the spacer from outside the space portion of the spacer A fixing member that fixes the insertion portion of the connection member.

  Preferably, the insertion portion of the spacer connection member has a hole for receiving the fixing member.

  Preferably, a positioning mark that clearly indicates a fixing position of the fixing member is provided on the surface of the spacer.

  Preferably, a desiccant is stored in the space of the spacer.

Preferably, in the spacer connecting member, the insertion portion and the main body portion arranged in a plurality of L shapes are integrally configured.
Preferably, at least one intermediate glass plate is disposed between the first glass plate and the second glass plate, and at least a part of the peripheral portion of the intermediate glass plate is disposed on the spacer. The groove part to hold | maintain is provided and the intermediate glass plate is hold | maintained at the said groove part.
Preferably, the fixing member is a screw, and the spacer and the insertion portion of the spacer connecting member inserted into the space portion at the end of the spacer are fixed by the screw.

  ADVANTAGE OF THE INVENTION According to this invention, the multilayer glass by which the spacer and the spacer connection member were connected reliably can be provided.

Exploded perspective view of double-glazed glass The perspective view which showed the corner key connected in the corner of a spacer Side view showing the corner key to be connected at the corner of the spacer Schematic longitudinal section of double-glazed glass Whole perspective view of multiple glass shoji showing application example of double glazing The schematic perspective view containing the partial cross section of the multiple glass shoji of FIG. FIG. 5 is a schematic longitudinal sectional view of a window composed of the multiple glass shoji and the window frame of FIG. Schematic cross section showing the shape of the glazing channel The perspective view which showed the corner key which connects a spacer in a corner Schematic cross-sectional view of multiple glass shoji according to an application example of an embodiment of a double-glazed glass Schematic cross-sectional view of multiple glass shoji according to an application example of an embodiment of a double-glazed glass Schematic cross-sectional view of multiple glass shoji according to an application example of an embodiment of a double-glazed glass Schematic cross-sectional view of multiple glass shoji according to an application example of an embodiment of a double-glazed glass The perspective view which showed the corner key for support plates connected in the corner part of a support plate Side view showing connection state of spacer and corner key, and support plate and corner key for support plate at corner of multiple glass shoji

  Next, the multilayer glass of the present invention will be specifically described with reference to the drawings of FIGS.

  The drawings illustrate preferred embodiments of the present invention, and the present invention is not limited to the illustrated drawings and the description thereof.

[Overall structure of the multilayer glass 1]
FIG. 1 is an exploded perspective view of a multilayer glass 1 according to the embodiment. As shown in FIG. 1, the multi-layer glass 1 includes a glass plate 10 (first glass plate) and a glass plate 12 (second glass plate) on which the main surfaces of the glass plate 10 are opposed to each other. ing. Four spacers 20 arranged near the periphery of the glass plate 10 and the glass plate 12 are arranged, and the glass plate 10 and the glass plate 12 are spaced apart.

  At the four corners of the glass plate 10 and the glass plate 12 where each end of the spacer 20 is abutted, the ends of the adjacent spacers 20 are connected by a corner key 50 which is a spacer connecting member. Is done. In the present embodiment, the four spacers 20 are connected by the four corner keys 50. A plurality of spacers 20 are connected and integrated by a plurality of corner keys 50, and the spacers 20 are disposed between the glass plate 10 and the glass plate 12.

  The corner key 50 includes a main body 52 and two insertion portions 54 protruding from the main body 52. The two insertion parts 54 are extended from the main-body part 52 in the orthogonal direction, and the two insertion parts 54 are arranged in an L shape.

  By inserting the insertion portion 54 of the corner key 50 into the space 22 of the two spacers 20 arranged orthogonally, the two spacers 20 are connected via the corner key 50.

  Four spacers 20 are connected by four corner keys 50 to form a continuous spacer frame. Hereinafter, this spacer frame may be simply referred to as a spacer. A hollow layer 60 is formed by the first glass plate 10, the second glass plate 12, and the spacer 20 (spacer frame) connected by the corner key 50. The hollow layer 60 may be called an air layer, a gas layer, an intermediate layer, or a space layer, and the hollow layer is synonymous with an air layer, a gas layer, an intermediate layer, a space layer, or the like.

  As shown in FIG. 1, the spacer 20 has a space 22 inside, and can store a desiccant (not shown) in the space.

As a material for forming the spacer 20 and the corner key 50, a synthetic resin material is preferably used. Synthetic resin materials are preferably hard vinyl chloride resin materials, acrylonitrile / styrene resin materials, and those in which glass fiber materials are added, but are not limited to these thermoplastic synthetic resin materials. Synthetic resin materials can also be used. The forming material is not limited to one type, and may be a composite structure using a plurality of types of materials.
For example, it may be a composite structure frame made of different synthetic resin materials partially by different co-extrusion molding methods, or a composite structure frame made of a synthetic resin material and an aluminum material. In the case of this composite structure, it is only necessary that the composite structure is integrally formed of any one kind of spacer forming material. The integrally molded spacer 20 may be partially or entirely joined with different synthetic resin materials and / or metal materials. In particular, the spacer 20 formed of a hard vinyl chloride resin material or an acrylonitrile / styrene resin material is excellent in heat insulation when used as the multi-layer glass 1, is easy to be integrally formed, has excellent durability, and is inexpensive. It is.
In addition, the formation material similar to the above-mentioned spacer 20 can also be used as a formation material of the spacer 113 in the multiple glass shoji described with reference to FIGS. 5 to 8 and FIGS.

  The above-mentioned hollow layer 60 is filled with an enclosed gas, for example, an inert gas such as dry air, argon gas, krypton gas, or helium gas, so that heat insulation and / or sound insulation is improved. The hollow layer 60 is dried by a desiccant (not shown) stored in the space 22 of the spacer 20. Thereby, internal condensation of the glass plates 10 and 12 is prevented.

  In many usual embodiments, the glass plates 10 and 12 are rectangular flat glass plates, and each thickness is preferably in the range of 1.3 mm to 3 mm in order to reduce the weight. The glass plates 10 and 12 have the same or substantially the same size.

  Moreover, the glass plates 10 and 12 may have different thicknesses as long as they are within the thickness range. Furthermore, the glass plates 10 and 12 are preferably chemically strengthened glass having sufficient strength even if the thickness is reduced. That is, by using the glass plates 10 and 12 as chemically strengthened glass, even if the thickness is 1.3 mm to 3 mm, impact resistance performance and wind pressure resistance performance can be obtained.

A chemically strengthened glass plate is a glass plate containing a Na component or a Li component such as soda lime silicate glass immersed in a molten salt such as potassium nitrate, and has a small atomic diameter Na ion and / or Alternatively, the strength is increased by replacing the Li ions with K ions having a large atomic diameter present in the molten salt to form a compressive stress layer on the surface layer of the glass plate. According to the chemically strengthened glass, even a glass plate having a thickness of 2 mm or less has a sufficiently high breaking strength. Therefore, if a chemically strengthened glass plate is used as the glass plates 10 and 12, even the thin glass plates 10 and 12 having a thickness of 1.3 mm to 3 mm are sufficient as the glass plates 10 and 12 disposed on the outside. High strength.
In addition, the glass plates 110 and 111 in the multiple glass shoji described with reference to FIGS. 5 to 7 and FIGS. 10 to 13 described later, and the chemically strengthened glass plates in the intermediate glass plate 112 are the same as the above chemically strengthened glass plates. is there.

  Moreover, a low radiation film such as a Low-E (Low-Emsitivity) film can be formed on at least one inner surface of the glass plates 10 and 12 facing the hollow layer 60. That is, at least one of the glass plates 10 and 12 can be configured as Low-E glass.

Low-E glass is, for example, a low-emission film mainly composed of tin oxide (SnO ₂ ) formed on the surface of a glass plate using a chemical vapor deposition apparatus or a sputtering apparatus, or silver (Ag). The main low emission film is formed using a sputtering apparatus or the like, and has a function of reducing the emissivity of thermal energy by infrared rays. Here, the low emission film mainly composed of silver (Ag) includes a type in which a silver film is laminated with an oxide film, a nitride film or the like. That is, Low-E glass has a performance that hardly allows heat to pass through, and thus has high heat shielding properties and heat insulation properties. In addition, the low-emission film mainly composed of silver has the property of being easily oxidized by moisture in the air. Therefore, when used for double-glazed glass, it should be formed on the side facing the sealed hollow layer. Is preferred. In addition, the low-emission film mainly composed of tin oxide has lower heat ray reflection performance and lower heat-shielding performance than the low-emission film mainly composed of silver, but compared with the low-emission film mainly composed of silver. Thus, there is an advantage that it is difficult to oxidize and is not easily damaged because of high mechanical durability. Therefore, a low radiation film mainly composed of tin oxide can be provided on the outer surface of at least one of the glass plates 10 and 12.
In addition, the Low-E glass used in the glass plates 110 and 111 and the intermediate glass plate 112 in the multiple glass shoji described with reference to FIG. 7 described later is the same as the Low-E glass described above.

  A method of fixing the spacer 20 and the corner key (spacer connecting member) 50 according to this embodiment will be described with reference to FIG. FIG. 2 is a perspective view showing a corner key 50 that connects the spacer 20 at the corner.

  The spacer 20 has a substantially rectangular parallelepiped shape, and is connected to the inner surface portion 24 and the outer surface side portion 26, and the inner surface portion 24 and the outer surface side portion 26 in order to maintain the distance between the glass plates 10 and 12. 10 and 12 and side portions 28 and 28 facing the inside. The spacer 20 has an end face 30 that faces the main body 52 of the corner key 50. A hole 32 is formed in the inner surface 24 of the spacer 20. The hole 32 is a through hole and reaches the space 22.

  The spacer 20 has a space portion 22 surrounded by an inner surface portion 24, an outer surface side portion 26, and side portions 28 and 28. The space portion 22 can receive the insertion portion 54 of the corner key 50 and store a desiccant. The inner surface portion 24 of the spacer 20 refers to a portion that forms the hollow layer 60, and the outer surface side portion 26 of the spacer 20 refers to a portion that faces the inner surface portion 24 that forms the hollow layer 60.

  The corner key 50 has a main body portion 52 and an insertion portion 54 that protrudes from the main body portion 52 and is arranged in an L shape. A hole 56 is formed in the insertion portion 54.

  The insertion portion 54 of the corner key 50 is inserted into the space portion 22 of the spacer 20 until the end surface 30 of the spacer 20 contacts the main body portion 52 of the corner key 50. The cross-sectional area of the insertion portion 54 is smaller than the cross-sectional area of the space portion 22, so that the insertion portion 54 is hardly in contact with the inner wall of the space portion 22, and the occurrence of cracks or the like in the spacer 20 can be suppressed.

  When the spacer 20 and the corner key 50 are connected to each other, the hole 32 of the spacer 20 and the hole 56 of the insertion portion 54 of the corner key 50 are aligned with each other when viewed from the inner surface 24 side. A screw 40 as a fixing member is inserted into the hole 32 of the spacer 20 from the outside of the space portion 22. The screw 40 penetrates the inner surface portion 24 of the spacer 20 and reaches the hole 56 of the insertion portion 54. By screwing the screw 40 from the outside of the space portion 22, the screw 40 is fastened to the hole 32 of the spacer 20 and the hole 56 of the insertion portion 54. Since the screw 40 penetrates the spacer 20, the spacer 20 and the insertion portion 54 of the corner key 50 can be securely fixed by the screw 40.

  In the present embodiment, unlike the conventional spacer mechanism and the fixing means that frictionally contacts the corner key, the spacer 20 and the corner key 50 are connected by the screw 40 that is a fixing member. Therefore, the spacer 20 and the corner key 50 can be reliably connected.

  Here, the outside of the space portion 22 means the opposite side of the space portion 22 with respect to the space portion 22 formed inside the spacer 20 with the spacer 20 as a boundary.

  In the present embodiment, an example in which the screw 40 is inserted from the outside of the inner surface portion 24 (that is, from the hollow layer 60 side) toward the space portion 22 is shown. It is also possible to insert the screw 40 toward the space portion 22 from 26 or the outside of the side portions 28 and 28.

  Although the example of the screw 40 having the head portion and the screw portion provided with the spiral groove as the fixing member and having a sharp screw tip is shown, the fixing member is not limited to this. The screw 40 is also referred to as a screw or the like.

  In the present embodiment, the holes 32 are formed in the spacer 20 and the holes 56 are formed in the insertion portion 54 as the pilot holes of the screw 40. However, these holes 32 and 56 are not necessarily formed. For example, when a tapping screw is used as the screw 40 that is a fixing member, the spacer 20 and the insertion portion 54 can be perforated with the tapping screw. The spacer 20 and the corner key 50 can be reliably connected by the tapping screw. In addition, a positioning mark that clearly indicates the fixing position of the screw 40 can be formed on the spacer 20 in order to align the screw 40 with the insertion portion 54.

  FIG. 3 is an explanatory view showing a state in which the spacer 20 and the corner key 50 are connected by the screw 40. As shown in FIG. 3, the screw 40 is inserted from the hole 32 of the inner surface portion 24, that is, from the outside of the space portion 22 toward the space portion 22. The screw 40 is fastened to the hole 56 of the insertion portion 54, and the spacer 20 and the corner key 50 are connected. When inserting the screw 40 from the outside of the space portion 22, it is preferable to insert the screw 40 from the inner surface portion 24 side.

  FIG. 4 is a cross-sectional view of the multi-layer glass 1 composed of two glass plates. As described above, the multilayer glass 1 includes the glass plates 10 and 12 and the spacer 20 for separating the glass plates 10 and 12. The multilayer glass 1 shown in FIG. 4 further includes sealing materials 62 and 64 and a moisture permeation preventing layer 66. As the sealing material, a primary seal 62 and a secondary seal 64 are used. The side portions 28 and 28 of the spacer 20 facing the glass plate 10 and the glass plate 12 are joined to the glass plates 10 and 12 by butyl rubber (primary seal) 62. Thereby, the hollow layer 60 is formed between the glass plate 10 and the glass plate 12. Then, a polysulfide-based or silicone-based sealing material (secondary seal) 64 is applied to the outer surface side portion 26 side of the spacer 20. Thereby, the multilayer glass 1 is comprised. A sealing material is not limited to the said form, It is good also considering the sealing material joined in the glass plate 10 and the glass plate 12, and the sealing material applied to the outer surface side part 26 side of the spacer 20 as the same material. Furthermore, you may have another sealing material which protects the secondary seal 64 on the outer periphery of the secondary seal 64.

  Further, a moisture permeation preventive layer 66 is formed to prevent moisture from permeating from the outside to the hollow layer 60 side of the multilayer glass 1. In particular, when the spacer 20 is formed of a synthetic resin material, for example, a hard polyvinyl chloride resin material, or an acrylonitrile / styrene resin material, the material itself is about the same as an aluminum spacer that has a high moisture permeation-preventing property. There is a demand for moisture permeability prevention.

  As the moisture permeation preventive layer 66, a layer made of a material capable of preventing moisture from being transmitted through the spacer 20 itself into the hollow layer 60 of the multilayer glass 1 is selected. The moisture permeation preventive layer 66 is preferably a layer formed by applying a moisture permeation preventive paint and cured, or a layer formed by attaching a moisture permeation preventive film. Typical examples of the moisture permeation preventing paint include a fluororesin paint and a polyvinylidene chloride resin paint. When the moisture permeation preventive layer is formed by application of the moisture permeation preventive paint, two or more kinds of moisture permeation preventive paints may be applied to form a two-layer or three or more layers.

Moisture permeation-preventing film-like body includes metal-coated film with anti-moisture performance, ceramic-coated film, composite coating film of metal and ceramic, metal tape, and the film itself made of resin with anti-moisture performance Examples thereof include a prevention resin film or a moisture permeation prevention resin-coated film. A moisture permeation-preventing film-like body obtained by laminating a butyl tape made of a butyl rubber adhesive and a metal tape such as an aluminum foil or a stainless steel foil can also be preferably used.
In addition, the thing similar to the above-mentioned moisture-permeable prevention layer 66 can be used also as the moisture-permeable prevention layer 190 in the multiple glass shoji demonstrated with reference to FIG. 6, FIG. 7, FIG.

  The spacer 20 has a space 22. By filling the space portion 22 with the desiccant 68, the desiccant 68 can dry the gas in the hollow layer 60. The desiccant 68 can be exposed to the hollow layer 60 through the opening 34 in which the spacer 20 is formed.

  Next, another embodiment of the multi-layer glass according to the present invention and a multiple glass shoji to which the multi-layer glass of the embodiment is applied will be specifically described with reference to the drawings of FIGS. Here, the multiple glass shoji is composed of a multi-layer glass constructed by separating at least three glass plates using a spacer and a support plate for supporting the spacer, and a window. Means the one composed of the above-mentioned multiple glass shoji and window frame.

  In addition, drawing is the multilayer glass of preferable embodiment of this invention, and its application example, It is not limited to illustration drawing and its description.

  FIG. 5 is an overall perspective view of the multiple glass shoji according to the multilayer glass of this embodiment and an application example of the multilayer glass, and FIG. 6 is a schematic perspective view including a partial cross section of the multiple glass shoji shown in FIG. FIG. 7 is a sectional view of a window including a multiple glass shoji and a window frame. FIG. 8 is a cross-sectional view showing a glazing channel. FIG. 9 is a perspective view showing a corner key to be connected at the corner of the spacer. FIGS. 10-13 is a schematic sectional drawing of the multiple glass shoji which concerns on one Embodiment. FIG. 14 is a perspective view showing a support plate corner key connected at a corner of the support plate. FIG. 15 is a side view showing a connection state of the spacer and the corner key, and the support plate and the support plate corner key at the corner of the multiple glass shoji.

[Overall configuration of multiple glass shoji 100]
As shown in FIGS. 5 and 6, the multilayer glass according to the embodiment includes a glass plate (first glass plate) 110, a glass plate 111 (second glass plate), and between the glass plate 110 and the glass plate 111. Three intermediate glass plates 112A, 112B, and 112C, and a spacer 113 that separates the glass plate 110 and the glass plate 111 and holds the intermediate glass plates 112A, 112B, and 112C. In addition, the multiple glass shoji 100 to which the multilayer glass is applied includes a support plate 200 that supports the spacer 113 from the outside. At the four corners of the glass plate 110 and the glass plate 111 where each end of the spacer 113 is abutted, the ends of the adjacent spacers 113 are connected by a corner key that is a spacer connecting member. Also, at the four corners where the end portions of the support plate 200 are abutted, the end portions of the adjacent support plates 200 are connected by the support plate corner key 250 which is a support plate connecting member.
In addition, when naming an intermediate glass plate generically, it is also called the intermediate glass plate 112.

The glass plate 110 and the glass plate 111 are separated from each other by four spacers 113 connected by four corner keys 150, so that a hollow layer is formed between the glass plate 110 and the glass plate 111. It is formed. In the present embodiment, a plurality of spacers 113 are connected by a plurality of corner keys 150 to be integrated. The hollow layer formed by the glass plate 110, the glass plate 111, and the spacer 113 is sealed by the spacer 113 at the periphery, and the three intermediate glass plates 112A, 112B, and 112C are spaced from each other. Thus, the hollow layer is divided into four divided hollow layers 162.
<Spacer 113>
As shown in FIG. 6, the spacer 113 is connected to the inner surface portion 114 and the outer surface side portion 115, and the inner surface portion 114 and the outer surface side portion 115, which maintain the distance between the glass plate 110 and the glass plate 111. It is comprised from the side part 116,116 contact | abutted to an inner surface, and the several space part (storage part) 117,117,117,117 which accommodates the desiccant 168 (refer FIG. 7).

  The spacer 113 has three rows of groove portions (that is, intermediate glass plate holding portions) 122 in the inner surface portion 114 of the spacer 113 in order to hold a part of the peripheral portion of the three intermediate glass plates 112A, 112B, and 112C. Is provided. The three rows of groove portions 122 are formed in parallel along the longitudinal direction of the spacer 113 so that the three intermediate glass plates 112A, 112B, and 112C are arranged in parallel.

  In the present embodiment, the space 117 is divided into four in the left-right direction by forming the groove 122 for holding the intermediate glass plate. The number of spaces 117 is determined according to the number of intermediate glass plates 112.

  In the present embodiment, the spacer 113 is integrally formed so as to have a plurality of spaces 117 and a plurality of grooves 122.

  The spacer 113 is molded from a spacer forming material. As the molding method, a molding method such as an extrusion molding method, a co-extrusion molding method, or an injection molding method can be used. The spacer forming material is as described above.

  In the groove portion 122 of the spacer 113 of the present embodiment, a glazing channel 140 is provided to support the end portions of the intermediate glass plates 112A, 112B, and 112C. The intermediate glass plates 112 </ b> A, 112 </ b> B, and 112 </ b> C can be easily fixed to the groove portion 122 of the spacer 113 by the glazing channel 140. Further, the width of each divided hollow layer 162 can be changed by decentering the glazing channel 140. Further, even when the internal pressure of the divided hollow layer 162 decreases and the spacer 113 moves to the divided hollow layer 162 when the temperature is lowered, the glazing channel 140 can relieve the pressure of the spacer 113.

  Further, the glazing channel 140 can be partially disposed in the groove 122. By providing a portion in which the glazing channel 140 is not disposed in the groove portion 122, the divided hollow layers 162 can be communicated with each other, and the pressure inside each divided hollow layer 162 can be equalized. Therefore, even when the volume of the divided hollow layer 162 is increased or decreased as the temperature rises or decreases, the change in volume of the plurality of divided hollow layers 162 can be absorbed by the entire divided hollow layer 162. When providing the part which does not arrange | position the glazing channel 140, providing in the corner | angular part of each edge | side of the intermediate glass plate 112 is preferable.

  The glazing channel 140 is preferably made of a resin having a Shore A hardness of 50 to 90 degrees (for example, vinyl chloride resin or urethane resin) or rubber. If the Shore A hardness is less than 50 degrees, it is too soft to obtain a sufficient holding force for the intermediate glass plates 112A, 112B, 112C, and if the Shore A hardness exceeds 90 degrees, the intermediate glass plate is too hard. This is because it becomes difficult to fit 112A, 112B, and 112C.

  The glazing channel 140 is not limited to the shape shown in FIGS. 6 and 7, and a glazing channel 140 having another shape can be used. FIG. 8 shows another glazing channel shape. As shown in FIG. 8, the glazing channel 140 has a configuration in which the end surface of the intermediate glass plate 112 is supported by a protrusion 141 provided on the glazing channel 140.

  When the two glass plates 110 and 111 have a rectangular flat plate shape, the glass plates 110 and 111 are separated by four spacers 113 arranged in the vicinity of the periphery of the four sides. As shown in FIG. 9, at the four corners where the end portions of the spacer 113 are abutted, the adjacent spacers 113 are connected to each other by a corner key 150 that is a spacer connecting member, thereby forming a continuous spacer frame.

  The spacer 113 has an end face 130 that faces the main body 152 of the corner key 150. A hole 132 is formed in the inner surface portion 114 of the spacer 113. The hole 132 is a through hole and reaches the space 117.

  The corner key 150 has a main body portion 152 and an insertion portion 154 that protrudes from the main body portion 152 and is arranged in an L shape, and a hole 156 is formed in the insertion portion 154. In the corner key 150, an insertion portion 154 arranged in an L shape is integrally formed with the main body portion 152 corresponding to the plurality of space portions 117 of the spacer 113.

  The insertion portion 154 of the corner key 150 is inserted into the space portion 117 of the spacer 113 until the end surface 130 of the spacer 113 is in contact with the main body portion 152 of the corner key 150. The cross-sectional area of the insertion portion 154 is smaller than the cross-sectional area of the space portion 117, and the insertion portion 154 is hardly in contact with the inner wall of the space portion 117, and it is possible to suppress the occurrence of cracks or the like in the spacer 113.

  When the spacer 113 and the corner key 150 are connected, the hole 132 of the spacer 113 and the hole 156 of the insertion portion 154 of the corner key 150 are aligned at a position where they overlap each other when viewed from the inner surface portion 114 side. A screw 158 as a fixing member is inserted into the hole 132 of the spacer 113 from the outside of the space portion 117. The screw 158 passes through the inner surface portion 114 of the spacer 113 and reaches the hole 156 of the insertion portion 154. By screwing the screw 158 from the outside of the space portion 117, the screw 158 is fastened to the hole 132 of the spacer 113 and the hole 156 of the insertion portion 154. Since the screw 158 penetrates the spacer 113, the spacer 113 and the insertion portion 154 of the corner key 150 can be securely fixed by the screw 158.

  Here, the outside of the space portion 117 means the opposite side of the space portion 117 with the spacer 113 as a boundary with respect to the space portion 117 formed inside the spacer 113. In this embodiment, an example in which the screw 158 is inserted from the outside of the inner surface portion 114 toward the space portion 117 is shown. However, if the screw 158 is outside the space portion 117, the outer surface side portion 115 or the side portions 116 and 116 may be A screw 158 can be inserted from the outside toward the space 117.

  In this embodiment, the hole 132 is formed in the spacer 113 and the hole 156 is formed in the insertion portion 154 as the pilot hole of the screw 158. For example, when a tapping screw is used as the screw 158 that is a fixing member, the spacer is formed by the tapping screw. 113 and the insertion part 154 can be directly drilled.

  In the present embodiment, the corner key 150 is fixed to the corner 113 by two screws 158 on the side closer to the glass plates 110 and 111 of the spacer 113, but the present invention is not limited to this. For example, it can be fixed at four locations where the space 117 is formed, or at two locations located inside the spacer 113.

  The corner key 150 having the main body portion 152 and the insertion portion 154 is preferably integrally molded with a hard synthetic resin material (for example, a hard polyvinyl chloride resin material, an acrylonitrile / styrene resin material, or a polypropylene resin material). The integral molding means molding by an integral molding method such as a shaving method, a molding method, a modeling method using a 3D printer, or an injection molding method. If integrally molded in this way, the corner key 150 can be easily formed into a single piece, the number of parts of the corner key 150 can be reduced, and the assembly process can be simplified. .

<Divided hollow layer 162>
In a preferred embodiment of the four divided hollow layers 162, argon gas having a thermal conductivity smaller than that of air is enclosed, and the heat insulating performance of the multiple glass shoji 100 is enhanced. In addition, the argon gas is dried by the desiccant 168 stored in the space 117 of the spacer 113. Thereby, internal condensation of the glass plates 110 and 111 and the intermediate glass plates 112A, 112B, and 112C is prevented. Furthermore, the thickness of the division | segmentation hollow layer 162 is set to 13 mm-17 mm which is the thickness which can fully exhibit the heat insulation performance. That is, the thickness of the divided hollow layer 162 is set so as to have a width of 2 mm before and after the optimum value (15 mm) at which the heat insulation performance can be maximized. The number of divided hollow layers 162 is determined according to the number of intermediate glass plates 112. Note that the above-described divided hollow layer 162 is not limited to argon gas, and may be filled with, for example, an inert gas such as dry air, krypton gas, or helium gas as an enclosed gas.

<Glass plates 110 and 111>
In many usual embodiments, the glass plates 110 and 111 are rectangular flat glass plates, and each thickness is preferably in the range of 1.3 mm to 3 mm in order to reduce the weight. The dimensions of the glass plates 110 and 111 are preferably the same or substantially the same.

  Further, the glass plates 110 and 111 may have different thicknesses as long as they are within the thickness range. Furthermore, the glass plates 110 and 111 are preferably chemically strengthened glass having sufficient strength even when the thickness is reduced. That is, by using the glass plates 110 and 111 as chemically tempered glass, impact resistance performance and wind pressure resistance performance can be obtained even when the thickness is 1.3 mm to 3 mm. The chemically strengthened glass is as described above.

<Intermediate glass plates 112A, 112B, 112C>
In many usual embodiments, the intermediate glass plates 112A, 112B, and 112C are rectangular flat glass plates that are arranged between the glass plate 110 and the glass plate 111 and are not exposed to the outside. Is preferably in the range of 1 mm to 2 mm for weight reduction, and the intermediate glass plates 112A, 112B, and 112C preferably have the same or substantially the same dimensions.

  Further, the intermediate glass plates 112A, 112B, and 112C may have different thicknesses as long as they are within the thickness range. Further, like the glass plates 110 and 111, the intermediate glass plates 112A, 112B, and 112C may be chemically strengthened glass having sufficient strength even if the thickness is reduced. For example, chemically tempered glass having a thickness of 1 mm to 2 mm has a static bending strength equivalent to that of non-tempered glass such as float glass having a thickness of 3 mm to 6 mm.

  The intermediate glass plates 112 </ b> A, 112 </ b> B, and 112 </ b> C are preferably in the shape of a similar rectangular shape having a smaller size than the glass plates 110 and 111 so that they can be inserted into the groove 122 of the spacer 113.

  In the present embodiment, the three intermediate glass plates 112A, 112B, and 112C are illustrated, but the intermediate glass plate may be at least one between the glass plates 110 and 111.

  The multilayer glass in the multiple glass shoji 100 includes at least one intermediate glass plate 112. Therefore, even when the temperature of the divided hollow layer 162 decreases and the internal pressure of the divided hollow layer 162 decreases, the end portion of the intermediate glass plate 112 supports the spacer 113, so that the spacer 113 moves to the divided hollow layer 162 side. This can be suppressed by the intermediate glass plate 112.

<Low radiation film | membrane 166A, 166B, 166C, 166D>
As shown in FIG. 7, low radiation such as a Low-E (Low-Emissivity) film is formed on the inner surface of the glass plates 110 and 111 facing the divided hollow layer 162 and the inner surface of the intermediate glass plates 112A and 112C facing the intermediate glass plate 112B. Films 166A, 166B, 166C, and 166D can be formed. That is, the glass plates 110 and 111 and the intermediate glass plates 112A and 112C are configured as Low-E glass. The Low-E glass is as described above.

  Here, when applied to a window or an opening of a building, the glass plate 110 constitutes an outdoor glass plate, and the glass plate 111 constitutes an indoor glass plate.

  In the multiple glass shoji 100, when Low-E glass is used, the emissivity of the low radiation films 166A, 166B, 166C, 166D can be made different. Thereby, the temperature of the division | segmentation hollow layer 162 and the temperature rise of intermediate glass plate 112A, 112B, 112C can be suppressed, and the risk of a thermal crack can be eliminated. `` Heat cracking '' is caused by the difference in expansion between the center of the glass and the vicinity of the glass due to the temperature difference between the center of the glass constituting the multiple glass shoji and the temperature of the glass periphery stored in the window frame. A tensile stress is generated and occurs when the tensile stress exceeds the allowable stress of the glass plate.

  For example, a low radiation film 166A having a relatively low emissivity is formed on the inner surface of the glass plate 110 on the outdoor side. A low radiation film 166B having a higher emissivity than the low radiation film 166A is formed on the surface of the intermediate glass plate 112A facing the intermediate glass plate 112B. A low radiation film 166C having a higher emissivity than the low radiation film 166A is formed on the surface of the intermediate glass plate 112C facing the intermediate glass plate 112B. A low radiation film 166D having a higher emissivity than the low radiation film 166A is formed on the inner surface of the glass plate 110 on the outdoor side. A low radiation film is not formed on the intermediate glass plate 112B.

  By providing the low-emissivity film 166A having a relatively low emissivity on the glass plate 110 on the outdoor side, it is possible to suppress the temperature rise inside the divided hollow layer 162 and the temperature rise of the intermediate glass plates 112A, 112B, and 112C. Further, by using a transparent glass plate instead of the Low-E glass as the central intermediate glass plate 112B having a large glass temperature increase, the temperature increase near the center of the intermediate glass plate 112 can be suppressed.

  On the other hand, since the low radiation films 166B and 166C of the intermediate glass plates 112A and 112C have a higher emissivity than the low radiation film 166A, the solar radiation heat is highly permeable and heat is prevented from being absorbed by the intermediate glass plate 112. It is easy to be transmitted to the glass plate 111 on the indoor side. Therefore, it is possible to suppress the temperature absorption of the intermediate glass plates 112A and 112C of the divided hollow layer 162 while ensuring the heat insulating performance.

  By setting it as the above-mentioned structure, the temperature rise of intermediate glass board 112A, 112B, 112C and the division | segmentation hollow layer 162 can be suppressed, and a thermal stress can be reduced.

<Support plate 200>
As shown in FIGS. 6 and 7, the support plate 200 is disposed at a position facing the outer surface side portion 115 of each spacer 113 in order to support the spacer 113. The support plate 200 is a corner of the glass plate 110 and the glass plate 111, and at the four corners where each end of the support plate 200 is abutted, the ends of the adjacent support plates 200 are connected to the support plate. It is connected by a support plate corner key 250 which is a member.

  Since the spacer 113 is supported by the support plate 200, even if the internal pressure of the divided hollow layer 162 rises due to the temperature rise and the spacer 113 tries to swell on the opposite side, that is, outside, the support plate 200. As a result, the spacer 113 can be prevented from bulging out.

  In the present embodiment, the support plate 200 is configured in a hollow structure having four hollow portions 202 inside in a cross-sectional shape. Since it has a hollow structure, the rigidity of the support plate 200 can be maintained. Moreover, the heat insulation performance can be improved by inserting a heat insulating material into the hollow portion 202.

  Regarding the shape of the support plate 200, the support plate 200 has substantially the same length as the spacer 113 in order to support the spacer 113, and has a width shorter than the width of the spacer 113. A secondary seal 182 is provided as a sealing material between the support plate 200 and the glass plate 110 and between the support plate 200 and the glass plate 111. Further, a moisture permeation preventing layer 190 is provided between the spacer 113 and the support plate 200.

  In the present embodiment, the support plate 200 is integrally formed so as to have a plurality of hollow portions 202. The support plate 200 is molded from a support plate forming material. As the molding method, a molding method such as an extrusion molding method, a coextrusion molding method, or an injection molding method can be used.

  As the support plate forming material, a synthetic resin material is preferably used. The synthetic resin material for forming the support plate is preferably a hard vinyl chloride resin material, an acrylonitrile / styrene resin material, or a material in which a glass fiber material is added, but is not limited to these thermoplastic synthetic resin materials. Various thermoplastic synthetic resin materials can also be used.

  In addition, the support plate frame forming material is not limited to one type, and may be a composite structure using a plurality of types of materials. For example, it may be a composite structure frame made of different synthetic resin materials partially by different co-extrusion molding methods, or a composite structure frame made of a synthetic resin material and an aluminum material. In the case of this composite structure, it is only necessary that the composite structure is integrally formed of any one kind of spacer forming material. The integrally formed support plate 200 may be partially or entirely joined with different synthetic resin materials and / or metal materials. In particular, the support plate 200 formed of a hard vinyl chloride resin material or an acrylonitrile / styrene resin material has excellent heat insulation when used as the multiple glass shoji 100, is easy to be integrally molded, and has excellent durability. Inexpensive.

  In the multiple glass shoji 100 shown in FIG. 10, the support plate 200 is disposed at a position facing the outer surface side portion 115 of the spacer 113 and supporting the end surfaces of the glass plates 110 and 111. Between the spacer 113 and the support plate 200, the moisture permeation preventing layer 190 and the secondary seal 182 are disposed from the spacer 113 side. Similar to FIGS. 6 and 7, the support plate 200 is provided with a hollow portion 202. The support plate 200 can prevent the spacer 113 from bulging to the opposite side of the divided hollow layer 162.

  In the multiple glass shoji 100 shown in FIG. 11, the support plate 200 is disposed at a position facing the outer surface side portion 115 of the spacer 113. In the example of FIG. 11, the support plate 200 is different from FIGS. That is, the support plate 200 is made of a homogeneous material as a whole. Similar to FIGS. 6 and 7, a secondary seal 182 is provided as a sealing material between the support plate 200 and the glass plate 110 and between the support plate 200 and the glass plate 111, and between the spacer 113 and the support plate 200. Is provided with a moisture permeation preventive layer 190. Similar to FIGS. 6 and 7, the support plate 200 can prevent the spacer 113 from bulging to the opposite side of the divided hollow layer 162.

  When the support plate 200 is connected by a corner key, a hole is formed in the end surface of the support plate 200, and the insertion portion of the corner key is fitted into this hole.

  In the multiple glass shoji 100 shown in FIG. 12, the support plate 200 is disposed at a position facing the outer surface side portion 115 of the spacer 113. In the example of FIG. 12, the support plate 200 is different from FIGS. The support plate 200 is opened in a direction opposite to the spacer 113 and has an opening 204 having a substantially concave cross section. Similar to FIGS. 6 and 7, a secondary seal 182 is provided as a sealing material between the support plate 200 and the glass plate 110 and between the support plate 200 and the glass plate 111, and between the spacer 113 and the support plate 200. Is provided with a moisture permeation preventive layer 190. Similar to FIGS. 6 and 7, the support plate 200 can prevent the spacer 113 from bulging to the opposite side of the divided hollow layer 162.

  When the support plate 200 is connected by a corner key, the corner key insertion portion may be fitted into the opening portion 204 of the support plate 200.

  In the multiple glass shovel 100 shown in FIG. 13, the support plate 200 is disposed at a position facing the outer surface side portion 115 of the spacer 113. In the example of FIG. 13, the support plate 200 protrudes from the end portions of the glass plates 110 and 111, unlike FIGS. On the other hand, as in FIGS. 6 and 7, the support plate 200 is provided with a hollow portion 202. Between the spacer 113 and the support plate 200, the moisture permeation preventing layer 190 and the secondary seal 182 are disposed from the spacer 113 side. Similar to FIGS. 6 and 7, the support plate 200 can prevent the spacer 113 from bulging to the opposite side of the divided hollow layer 162. Furthermore, since the support plate 200 protrudes from the end portions of the glass plates 110 and 111, the support plate 200 can be used as a setting block when installed on the window frame.

  As shown in FIG. 14, at the four corners where the end portions of the support plate 200 are abutted, the adjacent support plates 200 are connected by a support plate corner key 250 which is a support plate connecting member, and continuous support plates. A frame is constructed.

  The support plate 200 has an end surface 230 that faces the main body 252 of the support plate corner key 250. A hole 232 is formed on the opposite side of the surface of the support plate 200 facing the spacer 113, that is, on the outside of the support plate 200. The hole 232 is a through hole and reaches the hollow portion 202.

  The support plate corner key 250 has a main body portion 252 and an insertion portion 254 that protrudes from the main body portion 252 and is arranged in an L shape, and a hole 256 is formed in the insertion portion 254. In the support plate corner key 250, an insertion portion 254 arranged in an L shape is formed integrally with the main body portion 252 corresponding to the plurality of hollow portions 202 of the support plate 200.

  The insertion portion 254 of the support plate corner key 250 is inserted into the hollow portion 202 of the support plate 200 until the end surface 230 of the support plate 200 contacts the main body portion 252 of the support plate corner key 250. The cross-sectional area of the insertion portion 254 is smaller than the cross-sectional area of the hollow portion 202, and the insertion portion 254 is hardly in contact with the inner wall of the hollow portion 202, and it is possible to suppress the occurrence of cracks or the like in the support plate 200.

  When the support plate 200 and the support plate corner key 250 are connected, the hole 232 of the support plate 200 and the hole 256 of the insertion portion 254 of the support plate corner key 250 are aligned with each other. A screw 258 as a fixing member is inserted into the hole 232 of the support plate 200 from the outside of the hollow portion 202. Screws 258 are inserted toward the hollow portion 202 from the side opposite to the surface facing the spacer 113 of the support plate 200. The screw 258 passes through the support plate 200 and reaches the hole 256 of the insertion portion 254. By screwing the screw 258 from the outside of the hollow portion 202, the screw 258 is fastened to the hole 232 of the support plate 200 and the hole 256 of the insertion portion 254. Since the screw 258 penetrates the support plate 200, the support plate 200 and the insertion portion 254 of the support plate corner key 250 can be securely fixed by the screw 258.

  Here, the outside of the hollow portion 202 means the opposite side of the hollow portion 202 with the support plate 200 as a boundary with respect to the hollow portion 202 formed inside the support plate 200. In this embodiment, the example in which the screw 258 is inserted toward the hollow portion 202 from the side opposite to the surface facing the spacer 113 of the support plate 200 is shown, but from the surface facing the spacer 113 of the support plate 200 or the support A screw 258 can be inserted from the side surface of the plate 200 toward the hollow portion 202.

  In this embodiment, the hole 232 is formed in the support plate 200 and the hole 256 is formed in the insertion portion 254 as the pilot hole of the screw 258. For example, when a tapping screw is used as the screw 258 that is a fixing member, A hole can be directly formed in the support plate 200 and the insertion portion 254.

  In the present embodiment, the screws 258 are fixed to the support plate corner key 250 at two locations on the side close to the glass plates 110 and 111 of the support plate 200, but the present invention is not limited to this. For example, it can be fixed at four locations where the hollow portion 202 is formed, or at two locations located inside the support plate 200.

  The support plate corner key 250 having the main body portion 252 and the insertion portion 254 is preferably integrally molded with a hard synthetic resin material (for example, a hard polyvinyl chloride resin material, an acrylonitrile / styrene resin material, or a polypropylene resin material). . The integral molding means molding by an integral molding method such as a shaving method, a molding method, a modeling method using a 3D printer, or an injection molding method. If integrally molded in this way, the corner key 250 for the support plate can be easily formed into a single member, the number of parts of the corner key 250 for the support plate can be reduced, and the assembly process can be reduced. It can be simplified.

  FIG. 15 is an explanatory diagram showing a state in which the spacer 113 and the corner key 150 are connected by screws 158 and a state in which the support plate 200 and the support plate corner key 250 are connected by screws 258. As shown in FIG. 15, the screw 158 is inserted from the outside of the space portion 117 of the spacer 113 toward the space portion 117 of the spacer 113. The screw 158 is inserted from the side surrounded by the spacer 113. The screw 158 is fastened to the hole 156 of the insertion portion 154 of the corner key 150, and the spacer 113 and the corner key 150 are connected.

  Further, the screw 258 is inserted from the outside of the hollow portion 202 of the support plate 200 toward the hollow portion 202 of the support plate 200. The screws 258 are inserted from the side opposite to the spacer 113 of the support plate 200. The screw 258 is fastened to the hole 256 of the insertion portion 254 of the support plate corner key 250, and the support plate 200 and the support plate corner key 250 are connected.

<Sealant 180, 182>
As shown in FIGS. 6 and 7, the multiple glass shoji 100 includes sealing materials 180 and 182. As the seal, a primary seal 180 and a secondary seal 182 are used. Side portions 116 and 116 of the spacer 113 facing the glass plate 110 and the glass plate 111 are joined to the glass plate 110 on the outdoor side and the glass plate 111 on the indoor side by butyl rubber (primary seal) 180. Then, a polysulfide-based or silicone-based sealing material (secondary seal) 182 is applied to the outer surface side portion 115 side of the spacer 113. Thus, the multiple glass shoji 100 is configured. The sealing material is not limited to the above form, and the sealing material to be bonded on the glass plates 110 and 111 and the sealing material applied to the outer surface side portion 115 side of the spacer 113 may be the same material. Furthermore, you may have another sealing material which protects the secondary seal 182 in the outer periphery of the secondary seal 182. FIG.

  6 and 7, since the support plate 200 that supports the spacer 113 is provided, the secondary seal 182 is provided between the support plate 200 and the glass plate 110, and between the support plate 200 and the glass plate 111. Between.

  By providing the support plate 200, the amount of material used to form the secondary seal 182 can be reduced. Moreover, the secondary seal 182 can be made into an optimal shape by the support plate 200. Further, even if the total thickness of the multiple glass shoji 100 is changed, the secondary seal 182 can be set to a predetermined size by the support plate 200.

  In addition, since the support plate 200 is an object to which the secondary seal 182 is attached, stable adhesion performance can be ensured (two-surface adhesion). That is, the holding force of the secondary seal 182 can be expressed.

<Moisture permeation prevention layer 190>
As shown in FIGS. 6 and 7, a moisture permeation preventing layer 190 for preventing moisture from permeating from the outside is formed on the side of the divided hollow layer 162 of the multiple glass shoji 100. In particular, when the spacer 113 is formed of a synthetic resin material, for example, a hard polyvinyl chloride resin material or an acrylonitrile / styrene resin material, it is equivalent to an aluminum spacer having a high moisture permeation prevention property as the material itself. There is a demand for moisture permeability prevention. The moisture permeation preventing layer is as described above.

  Further, as shown in FIG. 7, since the spacer 113 has the space portion 117, the space portion 117 can be filled with the desiccant 168. The gas of the divided hollow layer 162 can be dried by the desiccant 168. The desiccant 168 is exposed to the divided hollow layer 162 through an opening (not shown) formed in the inner surface 114 of the spacer 113.

  In the present embodiment, since the support plate 200 is provided, the moisture permeation preventing layer 190 can be protected.

<Example in which multiple glass shoji 100 is applied to a building window>
As shown in FIG. 7, the window 400 of this embodiment includes a multiple glass shoji 100 and a window frame 300. The window 400 of the embodiment leaves an existing window frame 300 attached to the opening of the building frame, and is an attachment frame (second window) that is a new window frame inside the window frame 300 from the outdoor side. Frame) 310 is attached to the window frame 300, and the multiple glass shoji 100, which is a new shoji, is attached to the attachment frame 310.

  A setting block 350 is disposed on the window frame 300, and the multiple glass shoji 100 is placed on the setting block 350.

  The window frame 300 includes an airtight member 320 and a pressing edge 322. The airtight member 320 is detachably attached to the groove 324 for attaching the airtight member provided on the prospective wall of the window frame 300, and the lip portion thereof is the glass plate 111 on the indoor side of the multiple glass shoji 100. It is closely attached to.

The attachment frame 310 is fixed to the existing window frame 300 by fitting the fitting portion 310 </ b> A to the pressing edge mounting groove 326 provided on the outdoor side wall of the window frame 300.
The pressing edge 322 is detachably mounted in a pressing edge mounting groove 310 </ b> B provided in the attachment frame 310, and its lip portion is in close contact with the glass plate 110 on the outdoor side of the multiple glass shoji 100. Thereby, the multiple glass shoji 100 is pressed against the pressing edge 322 and the airtight material 320 from the outdoor side and the indoor side and is held by the window frame 300.

  The window frame 300 and the attachment frame 310 of the embodiment are both extruded materials of a hard synthetic resin material or an aluminum alloy, and the window frame 300 and the attachment frame 310 are window frames for FIX windows that cannot be opened and closed. is there.

  Since the attachment frame 310 is attached to the window 400 of the present embodiment using the groove 326 for attaching the edge of the existing window frame 300, the attachment frame 310 can be attached without reducing the opening area.

  By attaching the attachment frame 310, the existing multiple glass shoji 100, for example, thicker than the multi-layer glass 1, can be accommodated. By using the multiple glass shoji 100, high heat insulation can be achieved. Glass (multi-layer glass, multiple glass shoji) having different thicknesses can be put in one window frame 300. Further, by attaching the attachment frame 310, it is possible to achieve high thermal insulation while maintaining the appearance design.

ADVANTAGE OF THE INVENTION According to this invention, the multilayer glass by which the spacer and the spacer connection member were connected reliably can be provided.
The entire contents of the specification, claims, drawings, and abstract of Japanese Patent Application No. 2014-221618 filed on October 30, 2014 are incorporated herein by reference. .

  DESCRIPTION OF SYMBOLS 1 ... Multi-layer glass, 10, 12 ... Glass plate, 20 ... Spacer, 22 ... Space part, 24 ... Inner surface part, 26 ... Outer side part, 28 ... Side part, 30 ... End face, 32 ... Hole, 40 ... Screw , 50 ... Corner key, 52 ... Main body part, 54 ... Insertion part, 56 ... Hole, 60 ... Hollow layer, 62 ... Primary seal, 64 ... Secondary seal, 68 ... Desiccant, 100 ... Multiple glass shoji, 110, 111 ... Glass plate, 112A, 112B, 112C ... Intermediate glass plate, 113 ... Spacer, 114 ... Inner surface portion, 115 ... Outer surface side portion, 116 ... Side portion, 117 ... Space portion, 130 ... End surface, 132 ... Hole, 140 ... Glazing channel, 141 ... protrusion, 150 ... corner key, 152 ... body part, 154 ... insertion part, 156 ... hole, 158 ... screw, 162 ... divided hollow layer, 168 ... desiccant, 180 ... primary seal, 182 ... secondary 190 ... moisture permeation preventive layer, 200 ... support plate, 202 ... hollow part, 204 ... open part, 250 ... corner key for support plate, 252 ... main body part, 254 ... insertion part, 256 ... hole, 258 ... screw , 300 ... Window frame, 310 ... Attachment frame, 310A ... Fitting part, 310B ... Pushing edge mounting groove, 320 ... Airtight material, 322 ... Pushing edge, 324 ... Airtight material mounting groove, 326 ... Pushing edge mounting groove, 350 ... Setting block, 400 ... window.

Claims (7)

A first glass plate;
A second glass plate disposed opposite to the first glass plate;
A plurality of space portions disposed between the first glass plate and the second glass plate to form a hollow layer between the first glass plate and the second glass plate. Spacers of
A spacer connection member that connects ends of the spacers, the spacer connection member including an insertion portion and a main body portion arranged in an L shape to be inserted into the space portion of the spacer,
A double-glazed glass having a fixing member for fixing the spacer and the insertion portion of the spacer connecting member from the outside of the space portion of the spacer ,
The spacer connecting member is a multi-layer glass in which the main body portion and the plurality of insertion portions arranged in an L shape are integrally formed .   The multilayer glass according to claim 1, wherein the insertion portion of the spacer connection member has a hole for receiving the fixing member.   The multilayer glass according to claim 1 or 2, wherein a positioning mark that clearly indicates a fixing position of the fixing member is provided on a surface of the spacer.   The multilayer glass as described in any one of Claim 1 to 3 with which a desiccant is accommodated in the said space part of the said spacer. At least one intermediate glass plate is disposed between the first glass plate and the second glass plate, and the spacer has a groove portion that holds at least a part of the peripheral portion of the intermediate glass plate. is provided, the intermediate glass plate to the groove is maintained, insulating glass according to any one of claims 1 to 4. The fixing member is bis, and an insertion portion of the spacer connecting member inserted into the space of the ends of the said spacer spacer according to any one of claims 1 fixed 5 by the screws Multi-layer glass.   A first glass plate;
  A second glass plate disposed opposite to the first glass plate;
  A plurality of space portions disposed between the first glass plate and the second glass plate to form a hollow layer between the first glass plate and the second glass plate. Spacers of
  A spacer connection member that connects ends of the spacers, the spacer connection member including an insertion portion and a main body portion arranged in an L shape to be inserted into the space portion of the spacer,
  A double-glazed glass having a fixing member for fixing the spacer and the insertion portion of the spacer connecting member from the outside of the space portion of the spacer,
  At least one intermediate glass plate is disposed between the first glass plate and the second glass plate, and the spacer has a groove portion that holds at least a part of the peripheral portion of the intermediate glass plate. Is provided, and an intermediate glass plate is held in the groove portion.

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