Insulating glass units and insulating glass

Abstract

To provide a double-glazed glass unit in which a double-glazed glass can be properly held against warping of the double-glazed glass due to temperature difference, and a double-glazed glass for use in the double-glazed glass unit.SOLUTION: A double-glazed glass unit comprises: a double-glazed glass 10 comprising, a first glass plate 11, a second glass plate 12, a sealing material and a spacer: a frame body 20 facing a peripheral edge 8 of a first plane 31 of the first glass plate 11 and a fourth plane 34 of the second glass plate 12, and holding the first and second glass plates 11, 12; and a sealing section 24 sealing a gap between the first plane 31, the fourth plane 34 and the frame body 20. The sealing section 24 has: a first sealing area 41 which faces corner portions 8a of the peripheral edges 8 of the first and fourth planes 31, 34; and a second sealing area 42 which faces a side portion 8b sandwiched by two corner portions 8a out of the peripheral edges 8 of the first and fourth planes 31, 34. An elastic modulus of the second sealing area 42 is smaller than an elastic modulus of the first sealing area 41.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an insulating glass unit and insulating glass. [Background technology]

[0002] Patent Document 1 discloses a double-glazing unit in which the peripheral portion of the double-glazing is supported by a frame. In the double-glazing unit, a gasket is interposed between the double-glazing and the frame to support the double-glazing. The double-glazing is configured such that the peripheral portions of a pair of glass sheets are sealed with a sealant with a gap between the pair of glass sheets. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2000-54748 A Summary of the Invention [Problem to be solved by the invention]

[0004] When the insulating glass described in Patent Document 1 is placed outside a building, a temperature difference occurs between the glass sheet on the outside of the building and the glass sheet on the inside of the building due to the presence of a gap between the pair of glass sheets. This temperature difference may cause warping of the glass sheet on the outside of the building and the glass sheet on the inside of the building. Although the insulating glass is supported by a gasket and a frame, the degree of warping differs between the peripheral corners and the peripheral center of the glass sheet. For this reason, if the local warping of the glass sheet is large, the gasket cannot fully absorb the warping of the glass sheet, and the sealing material of the insulating glass may be subjected to stress and may be deformed or broken. If the sealing material of the insulating glass is deformed or broken, air or water may enter the gap in the insulating glass, which may reduce the insulating properties and durability of the insulating glass.

[0005] Therefore, there is a demand for an insulating glass unit that can properly hold the insulating glass against warping caused by temperature differences and the like, and for insulating glass to be used in such an insulating glass unit. [Means for solving the problem]

[0006] A characteristic configuration of the double-glazing unit according to the present invention is a double-glazing unit having: a first glass plate having a first surface and a second surface provided on a back side of the first surface; a second glass plate having a third surface opposing the second surface and a fourth surface provided on the back side of the third surface; a sealant provided around the entire outer edges of the first glass plate and the second glass plate for sealing an insulating space between the first glass plate and the second glass plate; and a spacer disposed between the first glass plate and the second glass plate for forming the insulating space. the sealing portion has a first sealing region facing a corner portion of the periphery of the first surface and the fourth surface, and a second sealing region facing a side portion sandwiched between two of the corners of the periphery of the first surface and the fourth surface, and a modulus of elasticity of the second sealing region is smaller than a modulus of elasticity of the first sealing region. The sealing material is configured not to come into contact with the seal portion. It is at the point.

[0007] In insulating glass that is subjected to a temperature difference, the first or second glass sheet is more likely to deform (warp) at the side portion between the two corners than at the corner portion of the periphery. Therefore, in this configuration, in the seal portion disposed between the insulating glass and the frame, the elastic modulus of the second seal region facing the side portion of the periphery of the first and second glass sheets of the insulating glass is configured to be smaller than the elastic modulus of the first seal region facing the corner portion. This makes it easier for the second seal region of the seal portion to tolerate deformation (warp) at the side portion of the insulating glass. As a result, the stress received by the sealing material of the insulating glass can be reduced, thereby improving the durability of the sealing material. In this way, an insulating glass unit capable of properly holding the insulating glass has been realized. Another characteristic configuration is that the sealing material is configured to abut against an edge surface of the first glass plate and an edge surface of the second glass plate, and the sealing material is configured to abut against the setting block. Another characteristic feature is that the elastic modulus of the first seal area is 0.2 N / mm 2 More than 2.0N / mm 2 and the elastic modulus of the second seal area is 0.01 N / mm 2 More than 0.4N / mm 2 The point is that.

[0008] Insulating glass unit according to the present invention The characteristic configuration of a sealant provided around an entire periphery of the first glass sheet and the second glass sheet, sealing an insulating space insulated between the first glass sheet and the second glass sheet; and a spacer disposed between the first glass sheet and the second glass sheet and forming the insulating space; and a frame facing peripheral edges of the first and fourth surfaces and sandwiching the first and second glass sheets; and a seal portion sealing a gap between the first and fourth surfaces and the frame, the seal portion having a first seal region facing corners of the peripheral edges of the first and fourth surfaces and a second seal region facing a side portion sandwiched between two of the corners of the peripheral edges of the first and fourth surfaces, the second seal region having a modulus of elasticity smaller than that of the first seal region, The seal portion is at a point where the thickness of the second seal area is greater than the thickness of the first seal area.

[0009] In this configuration, the thickness of the second seal area is greater than the thickness of the first seal area in the seal portion, so that the second seal area is more likely to elastically deform when the edge of the insulating glass is deformed, and thus deformation of the edge of the insulating glass is more likely to be tolerated by the second seal area of ​​the seal portion.

[0010] Another characteristic feature is that the seal portions are distributed and disposed in the second seal region.

[0011] When the seal portions are dispersed in the second seal region as in this configuration, the contact area of ​​the seal portions with the side of the insulating glass is reduced, making it easier for the second seal region of the seal portions to tolerate deformation of the side of the insulating glass.

[0012]

[0013]

[0014]

[0015]

[0016]

[0017]

[0018] Another characteristic feature is that the spacer is provided in plurality, and the spacers are provided at predetermined intervals.

[0019] According to this configuration, since the plurality of spacers are provided at predetermined intervals, the plurality of spacers make it easier to maintain the distance of the heat insulating space between the first glass plate and the second glass plate.

[0020] Another characteristic feature is that the heat insulating space is depressurized.

[0021] By reducing the pressure in the insulating space as in this configuration, the insulating performance of the insulating glass can be improved.

[0022] Another characteristic feature is that the spacers are provided on the periphery of the first glass plate and the second glass plate.

[0023] In this configuration, by providing spacers around the periphery of the first glass plate and the second glass plate, it is possible to easily position a sealant that seals the insulated space around the entire outer edge of the first glass plate and the second glass plate.

[0024] Another characteristic feature is that the heat-insulating space is filled with dry air or an inert gas.

[0025] As in the present configuration, by sealing dry air or an inert gas in the insulating space, the insulating performance of the insulating glass can be improved.

[0026] Another characteristic feature is that a Low-E film is laminated on the second surface or the third surface.

[0027] Low-E film is a film that is coated with a special low-radiation metal film and has high reflectance in the infrared range that has thermal energy. In the double-glazing unit with this configuration, the first surface of the first glass sheet faces the outside, and the fourth surface of the second glass sheet faces the outside, as described below. By laminating the Low-E film on the second surface, the solar heat from outside is reflected by the Low-E film, improving the heat shielding performance of the double-glazed glass. On the other hand, by laminating the Low-E film on the third surface, the heat from indoor heating is reflected by the Low-E film, improving the heat insulating performance of the double-glazed glass.

[0028]

[0029] [Brief description of the drawings]

[0030] [Figure 1] FIG. 1 is a front view of a double glazing unit according to a first embodiment. [Diagram 2] FIG. 2 is a cross-sectional view taken along the line II-II of FIG. [Diagram 3] FIG. 2 is a cross-sectional view taken along the line III-III in FIG. [Figure 4] 1 is a schematic cross-sectional view of a conventional insulating glass unit. [Diagram 5] 1 is a schematic cross-sectional view of a double glazing unit according to a first embodiment. [Figure 6] FIG. 4 is a vertical cross-sectional view of a modified example of the first embodiment. [Figure 7] FIG. 11 is a partial cross-sectional view of the second embodiment. [Figure 8] FIG. 11 is a partial cross-sectional view of a third embodiment. [Figure 9] FIG. 13 is a partial cross-sectional view of the fourth embodiment. [Figure 10] FIG. 10 is a partial cross-sectional view of the fifth embodiment. [Figure 11] FIG. 13 is a partial cross-sectional view of the sixth embodiment. [Figure 12] FIG. 11 is a partial vertical cross-sectional view of another embodiment. [Figure 13] FIG. 11 is a partial vertical cross-sectional view of another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0031] Hereinafter, an embodiment of the insulating glass unit according to the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiment, and various modifications are possible without departing from the spirit and scope of the present invention.

[0032] [First embodiment] A first embodiment of a double-glazing unit (hereinafter referred to as "glass unit") 100 according to the present invention will be described with reference to Figures 1 to 5. The glass unit 100 comprises a double-glazing unit 10, a frame 20, and a seal portion 24 disposed between the double-glazing unit 10 and the frame 20.

[0033] As shown in FIG. 2, the insulating glass 10 is composed of a first glass sheet 11, a second glass sheet 12, and a sealant 13 and a spacer 14 disposed between the first glass sheet 11 and the second glass sheet 12. The sealant 13 is disposed around the entire outer periphery of the first glass sheet 11 and the second glass sheet 12, and seals an insulating space 5 in which the first glass sheet 11 and the second glass sheet 12 are insulated. The spacer 14 is disposed between the first glass sheet 11 and the second glass sheet 12, and forms the insulating space 5. For example, dry air or an inert gas is sealed in the insulating space 5. The spacer 14 is formed of a resin. The sealant 13 is located on the outer periphery side of the insulating glass 10 relative to the spacer 14, and blocks the flow of the insulating space 5 and the outside air. The first glass sheet 11 is a heat-resistant glass having a first surface 31 and a second surface 32 disposed on the back side of the first surface 31. The second glass plate 12 is a Low-E glass having a third surface 33 opposing the second surface 32 of the first glass plate 11, and a fourth surface 34 provided on the back side of the third surface 33. In this embodiment, the first surface 31 of the first glass plate 11 is disposed on the outdoor side.

[0034] As shown in Figs. 1 and 2, the insulating glass 10 has a rectangular shape with four peripheral edges 8, and is fitted and fixed in a frame 20 having a recess along the peripheral edge 8. The frame 20 faces the peripheral edges 8 of the first face 31 and the fourth face 34, and holds the first glass sheet 11 and the second glass sheet 12. In this embodiment, the frame 20 is a fixed frame for a sash having a recess. A setting block 22 having a function of protecting an edge 4 of the insulating glass 10 is installed on the bottom surface of the recess of the frame 20 into which the four sides of the insulating glass 10 are fitted. The edge 4 of the insulating glass 10 includes an edge 16 of the first glass sheet 11, an edge of the sealant 13, and an edge 17 of the second glass sheet 12. The setting blocks 22 only need to be installed in several locations at the lower end of the double-glazed glass 10 to an extent that they can sufficiently distribute and support the weight of the double-glazed glass 10, and they do not need to be installed over the entire area of ​​the four sides of the double-glazed glass 10, but may be installed over the entire area of ​​the four sides of the double-glazed glass 10.

[0035] To fix the insulating glass 10 to the frame 20, a backup material 23 is provided between the insulating glass 10 and the frame 20. Furthermore, a seal 24 is provided between the insulating glass 10 and the frame 20. The seal 24 is disposed on the periphery 8 of the first glass sheet 11 and the second glass sheet 12, and prevents water from entering the recess of the frame 20. Furthermore, when the insulating glass 10 does not have a sealant 13, the seal 24 can also block the flow of air between the insulating space 5 and the outside air. In this way, the insulating glass 10 is configured to be sandwiched between the frame 20 and the seal 24, and the gap between the insulating glass 10 and the frame 20 is filled by the seal 24. The seal 24 is made of various elastic rubbers and resins.

[0036] 1 and 3, the seal portion 24 has a first seal area 41 facing a corner 8a of the periphery 8 of the first surface 31 and the fourth surface 34, and a second seal area 42 facing a side 8b sandwiched between two corners 8a, 8a of the periphery 8 of the first surface 31 and the fourth surface 34. Here, in the seal portion 24, the elastic modulus of the second seal area 42 is smaller than that of the first seal area 41. The elastic modulus of the first seal area 41 is 0.2 N / mm 2 More than 2.0N / mm 2It is preferable that the resistance is less than 0.4N / mm 2 More than 1.0N / mm 2 The elastic modulus of the second seal area 42 is preferably 0.01 N / mm 2 More than 0.4N / mm 2 It is preferable that the resistance is less than 0.1N / mm 2 More than 0.2N / mm 2 It is more preferable that the following is satisfied. In the seal portion 24, the first seal region 41 and the second seal region 42 are made of different rubbers or resins. In the seal portion 24, the seal material of the first seal region 41 and the seal material of the second seal region 42 may be integrated by bonding or welding, or may be disposed in an unbonded state.

[0037] Hereinafter, the effects of this embodiment will be described with reference to Figures 4 and 5. Figure 4 is a schematic cross-sectional view showing the configuration of a conventional glass unit 200, and Figure 5 is a schematic cross-sectional view showing the configuration of a glass unit 100 of this embodiment.

[0038] In the conventional glass unit 200 shown in FIG. 4, the seal portion 24a has the same elastic modulus throughout. The first glass sheet 11 and the second glass sheet 12 expand when heated to a high temperature and contract when cooled to a low temperature. In the glass unit 200, for example, assume that the second glass sheet 12 is heated. In this case, since the end face 17 of the second glass sheet 12 is in contact with the frame body 20 (setting block 22), the second glass sheet 12 cannot expand along the plate surface and deforms and warps in a direction perpendicular to the plate surface. However, the seal portion 24a and the frame body 20 are present at a position facing the plate surface of the second glass sheet 12. Therefore, the deformation of the second glass sheet 12 in a direction perpendicular to the plate surface is restricted by the seal portion 24a and the frame body 20, and the second glass sheet 12 receives stress from the seal portion 24a.

[0039] The stress that second glass plate 12 receives from seal portion 24a also occurs in the direction along the plate surface of second glass plate 12, and acts as a shear stress between second glass plate 12 and sealant 13. The shear stress may cause peeling at the interface between second glass plate 12 and sealant 13, in which case the airtightness of insulation space 5 will be lost and the insulation properties of glass unit 200 will be impaired.

[0040] 5 , the side 8b (center portion) between the two corners 8a of the second glass plate 12 faces the second sealing region 42, which has a smaller elastic modulus, of the seal portion 24. Therefore, when the second glass plate 12 warps toward the second sealing region 42, the warping of the second glass plate 12 is absorbed by the second sealing region 42. In other words, the second sealing region 42 exhibits a buffering function that absorbs the warpage of the second glass plate 12. This reduces the stress that the second glass plate 12 receives from the sealing portion 24, and reduces the shear stress acting on the second glass plate 12. As a result, peeling of the sealing material 13 is suppressed, and the airtightness of the insulating space 5 can be appropriately maintained.

[0041] In the glass unit 100, a Low-E film 12a is laminated over the entire third surface 33 of the second glass plate 12. The Low-E film 12a is composed of a single metal layer, or a multilayer structure in which two or more layers selected from a metal layer, a metal oxide layer, a metal nitride layer, and a metal oxynitride layer are laminated. A suitable example of the metal layer is a silver layer. A suitable example of the metal oxide layer is a tin oxide layer, a titanium oxide layer, or a zinc oxide layer. A suitable example of the metal nitride layer is silicon nitride. A suitable example of the metal oxynitride layer is silicon oxynitride. The low-E film 12a is preferably formed by a vacuum film-forming method such as physical vapor deposition (PVD), and in particular, a sputtering method is preferred because it allows uniform film formation over a large area.

[0042] The Low-E film 12a is a film coated with a low-radiative special metal film to increase the reflectance in the infrared range having thermal energy. In the glass unit 100, the first surface 31 of the first glass sheet 11 faces the outside, and the fourth surface 34 of the second glass sheet 12 faces the outside, as described below. By laminating the Low-E film 12a on the third surface 33, indoor heating heat and the like are reflected by the Low-E film 12a, improving the heat insulating performance of the insulating glass 10. The Low-E film 12a may be laminated on the second surface 32. In this case, solar heat from the outside is reflected by the Low-E film 12a laminated on the second surface 32, improving the heat insulating performance of the insulating glass 10.

[0043] The backup material 23 and the seal portion 24 are members for supporting the insulating glass 10 on the frame 20, and are therefore made of resin or rubber having a certain degree of elasticity so as not to damage the insulating glass 10.

[0044] [Modification of the first embodiment] As shown in Fig. 6, the insulating glass 10 may be formed of reduced pressure insulating glass in which the insulating space 5 is reduced in pressure. The insulating glass 10 shown in Fig. 6 has a plurality of spacers 14 between the second surface 32 and the third surface 33, and the plurality of spacers 14 are provided at predetermined intervals on the plate surfaces of the second surface 32 and the third surface 33.

[0045] The spacers 14 are each formed of, for example, a cylindrical columnar body. The columnar body is made of ceramics such as alumina or zirconia. The columnar body may contain a nanoparticle filler such as zirconia.

[0046] Second Embodiment A second embodiment of the glass unit 100 will be described with reference to Fig. 7. The same members as those in the first embodiment are given the same reference numbers, and the description thereof will be omitted here.

[0047] 7, in this embodiment, the frame 20 has a first frame region 26 facing a corner 8a of the periphery 8 of the first surface 31 and the fourth surface 34, and a second frame region 27 facing a side 8b sandwiched between two corners 8a of the periphery 8 of the first surface 31 and the fourth surface 34. Here, the elastic modulus of the second frame region 27 is smaller than that of the first frame region 26. The elastic modulus of the first frame region 26 is 10 N / mm 2 More than 250N / mm 2 It is preferable that the resistance is less than 70N / mm 2 More than 150N / mm 2 The elastic modulus of the second frame region 27 is preferably 0.1 N / mm 2 More than 70N / mm 2 It is preferable that the resistance is less than 30N / mm 2 More than 70N / mm 2 It is even more preferable that:

[0048] In the second embodiment, in the frame 20, the elastic modulus of the second frame region 27 is smaller than that of the first frame region 26, so that deformation of the side portion 8b of the insulating glass 10 is more easily tolerated by the second frame region 27. Furthermore, the frame 20 itself is also more likely to deform due to heat, with the second frame region 27 warping more easily than the first frame region 26, but by reducing the elastic modulus of the second frame region 27, the stress propagating to the insulating glass 10 due to deformation of the frame 20 is alleviated. As a result, the stress received by the sealing material 13 of the insulating glass 10 can be reduced, and the durability of the sealing material 13 can be improved.

[0049] Third Embodiment A third embodiment of the glass unit 100 will be described with reference to Fig. 8. The same members as those in the first embodiment are given the same reference numbers, and the description thereof will be omitted here.

[0050] In this embodiment, as shown in FIG. 8, the frame 20 has a first frame region 26 facing the corner 8a and a second frame region 27 facing the side 8b of the peripheral edge 8 of the first surface 31 and the fourth surface 34, and is configured so that the distance between the side 8b and the second frame region 27 is greater than the distance between the corner 8a and the first frame region 26 in the direction perpendicular to the plate surfaces of the glass plates 11 and 12, so that the second frame region 27 is farther away from the side 8b than the first frame region 26.

[0051] The second seal region 42 of the seal portion 24 is disposed across the side portion 8b and the second frame region 27. Therefore, the thickness of the second seal region 42 of the seal portion 24 is greater than the thickness of the first seal region 41. The second seal region 42, which is thicker than the first seal region 41, faces the side portion 8b of the insulating glass 10, so that the second seal region 42 is more likely to deform elastically when the side portion 8b is deformed. This makes it easier for the second seal region 42 of the seal portion 24 to tolerate deformation of the side portion 8b of the insulating glass 10. As a result, the stress applied to the sealing material 13 of the insulating glass 10 can be reduced, and the durability of the sealing material 13 can be improved.

[0052] [Fourth embodiment] A fourth embodiment of the glass unit 100 will be described with reference to Fig. 9. The same members as those in the first embodiment are given the same reference numbers, and the description thereof will be omitted here.

[0053] In this embodiment, as in the third embodiment, as shown in Figure 9, the frame 20 has a first frame region 26 and a second frame region 27, and is configured so that the distance between the side portion 8b and the second frame region 27 is greater than the distance between the corner portion 8a and the first frame region 26 in the direction perpendicular to the plate surfaces of the glass plates 11 and 12, so that the second frame region 27 is farther from the side portion 8b than the first frame region 26.

[0054] However, in this embodiment, unlike the third embodiment, the seal portion 24 is configured to have a constant thickness. Therefore, the first seal area 41 and the second seal area 42 have the same thickness, and a gap 50 is formed between the second seal area 42 and the second frame area 27.

[0055] With this configuration, the presence of the gap 50 makes it easier to tolerate deformation of the side portion 8b of the insulating glass 10. In addition, the frame 20 itself is also more likely to deform due to heat, with the second frame region 27 warping more easily than the first frame region 26, but the presence of the gap 50 prevents stress caused by deformation of the frame 20 from being transmitted to the insulating glass 10. As a result, the stress received by the sealing material 13 of the insulating glass 10 can be reduced, improving the durability of the sealing material 13. Note that in the seal portion 24 of this embodiment, the elastic modulus of the first seal region 41 and the elastic modulus of the second seal region 42 may be the same.

[0056] Fifth embodiment A fifth embodiment of the glass unit 100 will be described with reference to Fig. 10. The same members as those in the first embodiment are given the same reference numbers, and the description thereof will be omitted here.

[0057] In this embodiment, as shown in FIG. 10, the seal portion 24 is provided in the first seal region 41 in the region facing the corner 8a, and is not provided in the region facing the side 8b. Therefore, the seal portion 24 faces only the corner 8a of the periphery 8 of the first surface 31 and the fourth surface 34. As a result, the seal portion 24 does not face the side 8b of the first surface 31 and the fourth surface 34, and a gap 51 exists between the side 8b and the frame 20. Therefore, the deformation of the side 8b of the insulating glass 10 is easily tolerated due to the presence of the gap 51. In addition, the frame 20 itself is deformed by heat and is more likely to warp in the second frame region 27 than in the first frame region 26, but the presence of the gap 51 prevents the stress caused by the deformation of the frame 20 from being transmitted to the insulating glass 10. As a result, the stress received by the sealant 13 of the insulating glass 10 can be reduced, and the durability of the sealant 13 can be improved.

[0058] Sixth Embodiment A sixth embodiment of the glass unit 100 will be described with reference to Fig. 11. The same members as those in the first embodiment are given the same reference numbers, and the description thereof will be omitted here.

[0059] In this embodiment, as shown in Fig. 11, the seal portions 24 are dispersedly arranged in the second seal region 42. When the seal portions 24 are dispersedly arranged in the second seal region 42, the contact area of ​​the seal portions 24 with the side portion 8b of the insulating glass 10 is reduced. This makes it easier for the second seal region 42 of the seal portions 24 to tolerate deformation of the side portion 8b of the insulating glass 10. As a result, the stress applied to the sealing material 13 of the insulating glass 10 can be reduced, thereby improving the durability of the sealing material 13.

[0060] Other Embodiments (1) As shown in Fig. 12, the glass unit 100 may be configured such that the seal portion 24 is supported by a glazing channel 29 used for mounting the seal portion 24 to a sash frame 28. In this case, the glazing channel 29 corresponds to a frame that holds the first glass sheet 11 and the second glass sheet 12 therebetween.

[0061] (2) As shown in FIG. 13, the glass unit 100 may have a shape in which the seal portion 24 has a plurality of protrusions 43 on the outer surface that faces the frame 20.

[0062] (3) In the above embodiment, the second sealing region 42 of the sealing portion 24 is formed of a single sealing material. However, the second sealing region 42 may be formed of a plurality of sealing materials having different elastic moduli. For example, the plurality of sealing materials having different elastic moduli may be arranged so that the elastic moduli become smaller toward the center in the longitudinal direction of the second sealing region 42. By arranging the plurality of sealing materials in the second sealing region 42 in this manner, the ability of the second sealing region 42 to absorb the warpage of the insulating glass 10 can be further improved. Alternatively, an additive may be mixed into a single sealing material as the sealing portion 24, and the amount of the additive may be changed in the first sealing region 41 and the second sealing region 42, so that the elastic modulus of the second sealing region 42 is smaller than that of the first sealing region 41.

[0063] (4) In the above embodiment, an example was shown in which the frame body 20 was a fixed frame for the sash. However, the frame body 20 is not limited to being a fixed frame for the sash, and may have another configuration, such as a pair of L-shaped angles.

[0064] (5) In the above embodiment, an example was shown in which the glass unit 100 includes the setting block 22 and the backup material 23, but the glass unit 100 may be configured without one or both of the setting block 22 and the backup material 23.

[0065] (6) In the above embodiment, the glass plates 11 and 12 are made of heat-resistant glass or Low-E glass. However, they may be made of soda glass, tempered glass, or the like. [Industrial Applicability]

[0066] The present invention can be widely applied to insulating glass units and insulating glass. [Explanation of symbols]

[0067] 4,16,17: End face 5: Insulated space 8: Periphery 8a: Corner 8b: Edge 10: Double glazing 11: First glass plate 12: Second glass plate 12a:Low-E membrane 13: Encapsulating material 14: Spacer 20:Frame body 24: Seal part 24a: Seal part 26: First frame area 27: Second frame area 31: 1st page 32: 2nd side 33:Third side 34:Side 4 41: First seal area 42: Second seal area 50,51 :Void 100: Glass unit (double glazing unit)

Claims

1. A first glass plate having a first surface and a second surface provided on a back side of the first surface; a second glass plate having a third surface opposite to the second surface and a fourth surface provided on a back side of the third surface; a sealant provided around the entire outer edges of the first glass plate and the second glass plate, the sealant sealing an insulating space between the first glass plate and the second glass plate; A spacer is disposed between the first glass sheet and the second glass sheet to form the thermal insulation space. a frame facing peripheral edges of the first surface and the fourth surface and sandwiching the first glass plate and the second glass plate; a seal portion that seals gaps between the first surface and the fourth surface and the frame body, the seal portion has a first seal area facing corners of the periphery of the first surface and the fourth surface, and a second seal area facing sides of the periphery of the first surface and the fourth surface that are sandwiched between the two corners, the elastic modulus of the second seal area is less than the elastic modulus of the first seal area; The sealing material is configured not to come into contact with the seal portion.

2. A setting block is provided which abuts against an end face of the first glass sheet and an end face of the second glass sheet; The insulating glass unit according to claim 1 , wherein the sealing material is configured to abut against the setting block.

3. A double-glazing unit as claimed in claim 1 or 2, wherein the elastic modulus of the first sealing region is 0.2 N / mm 2 or more and 2.0 N / mm 2 or less, and the elastic modulus of the second sealing region is 0.01 N / mm 2 or more and 0.4 N / mm 2 or less.

4. A first glass plate having a first surface and a second surface provided on the back side of the first surface; a second glass plate having a third surface opposite to the second surface and a fourth surface provided on a back side of the third surface; a sealant provided around the entire outer edges of the first glass plate and the second glass plate, the sealant sealing an insulating space between the first glass plate and the second glass plate; A spacer is disposed between the first glass sheet and the second glass sheet to form the thermal insulation space. a frame facing peripheral edges of the first surface and the fourth surface and sandwiching the first glass plate and the second glass plate; a seal portion that seals gaps between the first surface and the fourth surface and the frame body, the seal portion has a first seal area facing corners of the periphery of the first surface and the fourth surface, and a second seal area facing sides of the periphery of the first surface and the fourth surface that are sandwiched between the two corners, the elastic modulus of the second seal area is less than the elastic modulus of the first seal area; The sealing portion is an insulating glass unit in which the thickness of the second sealing area is greater than the thickness of the first sealing area.

5. The insulating glass unit according to claim 1 , wherein the sealing portions are disposed in a dispersed manner in the second sealing region.

6. The insulating glass unit according to claim 1 , further comprising a plurality of the spacers, the plurality of spacers being disposed at predetermined intervals.

7. The insulating glass unit according to claim 6, wherein the insulating space is under reduced pressure.

8. The insulating glass unit according to claim 1 , wherein the spacer is provided on peripheral edges of the first glass plate and the second glass plate.

9. The insulating glass unit according to claim 8, wherein dry air or an inert gas is sealed in the insulating space.

10. The insulating glass unit according to any one of claims 1 to 9, wherein a Low-E film is laminated on the second surface or the third surface.

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