JP2016108207A - Double glazing and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide double glazing into which high-purity gas is encapsulated.SOLUTION: Double glazing 1 includes: a pair of glass plates 10, 11 disposed facing each other; a separation material 20 which is disposed along the peripheries of the pair of glass plates 10, 11 to separate the glass plate 10 from the glass plate 11; a through hole 30 through which an inner space 12 formed of the pair of glass plates 10, 11 and the separation material 20, and an outer space are communicated with each other; and ultraviolet cured resin 40 which is formed inside the through hole 30 to block the inner space 12. The inner space 12 is filled with inactive gas.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a multilayer glass and a method for producing the same.

  Conventionally, for the purpose of improving heat insulation performance and suppressing the occurrence of dew condensation, multilayer glass has been used for windows of buildings and vehicles. The multilayer glass includes a plurality of glass plates and a spacer that separates the plurality of glass plates, and dry air or the like is sealed between the plurality of glass plates. For example, Patent Document 1 discloses a technique in which a spacer has a through-hole, and gas is exhausted and gas is supplied through the through-hole.

JP 2012-140766 A

  In the technique described in Patent Document 1, after the gas is sealed through the through hole, the through hole is sealed with a stopper. At this time, it is necessary to pull out the nozzle after inserting the nozzle into the through hole and sealing the gas and then inserting the stopper into the through hole. Therefore, when the nozzle is pulled out, the enclosed gas leaks to the outside through the through hole, or surrounding gas is mixed into the inside through the through hole from the outside. In other words, the above conventional technique has a problem that it is difficult to enclose high-purity gas.

  Then, an object of this invention is to provide the multilayer glass with which high purity gas was enclosed, and its manufacturing method.

  In order to achieve the above object, a multilayer glass according to one embodiment of the present invention includes a pair of glass plates arranged to face each other, and arranged along the circumference of the pair of glass plates. A spacing member that separates the plates, a through hole that communicates the internal space formed by the pair of glass plates and the spacing material, and the external space, and the internal space that is provided in the through hole to seal the internal space The interior space is filled with an inert gas.

  Moreover, the method for producing a multilayer glass according to one aspect of the present invention includes a step of inserting a gas introduction head including a gas pipe and a resin nozzle into the through hole, and an inert gas through the gas pipe. After supplying the space, after supplying the inert gas to the internal space, after discharging the ultraviolet curable resin material into the through hole through the resin nozzle, and after discharging the ultraviolet curable resin material And a step of removing the gas introduction head from the through hole and a step of curing the ultraviolet curable resin material by irradiating the ultraviolet ray with ultraviolet rays.

  ADVANTAGE OF THE INVENTION According to this invention, the multilayer glass with which high purity gas was enclosed, and its manufacturing method can be provided.

It is a general-view perspective view of the multilayer glass which concerns on Embodiment 1 of this invention. It is a disassembled perspective view of the multilayer glass which concerns on Embodiment 1 of this invention. It is sectional drawing of the multilayer glass which concerns on Embodiment 1 of this invention. It is a figure which shows the gas introduction head utilized for manufacture of the multilayer glass which concerns on Embodiment 1 of this invention. It is a figure which shows another example of the gas introduction head utilized for manufacture of the multilayer glass which concerns on Embodiment 1 of this invention. It is a flowchart which shows the manufacturing method of the multilayer glass which concerns on Embodiment 1 of this invention. It is process drawing which shows the manufacturing method of the multilayer glass which concerns on Embodiment 1 of this invention. It is a figure which shows a mode that gas is introduce | transduced into the internal space of the multilayer glass which concerns on Embodiment 1 of this invention. It is sectional drawing of the multilayer glass which concerns on Embodiment 2 of this invention. It is sectional drawing of the multilayer glass which concerns on Embodiment 2 of this invention. It is a figure which shows a mode that gas is introduce | transduced into the internal space of the multilayer glass which concerns on Embodiment 2 of this invention. It is sectional drawing which shows the corner | angular part of the multilayer glass which concerns on the modification of Embodiment 2 of this invention.

  Below, the multilayer glass which concerns on embodiment of this invention, and its manufacturing method are demonstrated in detail using drawing. Each of the embodiments described below shows a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, constituent elements, arrangement and connection forms of constituent elements, processes, order of processes, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements.

  Each figure is a mimetic diagram and is not necessarily illustrated strictly. Moreover, in each figure, the same code | symbol is attached | subjected about the same structural member.

(Embodiment 1)
[Configuration of double-layer glass]
First, the structure of the multilayer glass 1 which concerns on Embodiment 1 is demonstrated using FIGS. 1-3.

  1 to 3 are an overview perspective view, an exploded perspective view, and a cross-sectional view, respectively, of the multilayer glass 1 according to the present embodiment. Specifically, FIG. 2 further shows an enlarged corner of the multilayer glass 1. 3 shows a cross section taken along line III-III in FIG. 1 and orthogonal to the main surface of the multilayer glass 1.

  As shown in FIG. 1, the multilayer glass 1 according to the present embodiment includes a pair of glass plates 10 and 11, and a spacing material 20. As shown in FIGS. 2 and 3, the multilayer glass 1 further includes a through hole 30, an ultraviolet curable resin 40, and a sealing material 50. In the present embodiment, the multilayer glass 1 includes one through hole 30, one ultraviolet curable resin 40, and one sealing material 50 at each of the two corners.

  As shown in FIG. 3, an internal space 12 is formed by the pair of glass plates 10, the glass plate 11, and the spacing material 20. Further, the internal space 12 is filled with an inert gas.

An inert gas is a gas with low reactivity, such as a chemical reaction with respect to another substance. For example, the inert gas is a rare gas such as argon (Ar), helium (He), neon (Ne), or krypton (Kr), or nitrogen (N ₂ ). The internal space 12 may be depressurized from the atmospheric pressure, or may be maintained at the atmospheric pressure.

  As described above, in the multilayer glass 1 according to the present embodiment, the internal space 12 (intermediate layer) filled with the inert gas is formed between the glass plate 10 and the glass plate 11. Thereby, heat insulation performance can be improved and generation | occurrence | production of dew condensation can be suppressed. The multilayer glass 1 can be used for windows of buildings and vehicles, for example.

  The internal space 12 further includes, for example, a light-emitting device such as an organic EL (Electro Luminescence) element, or a light-transmittable variable device that can change the light transmittance such as a liquid crystal device or an electrochromic element. May be. Thereby, the multilayer glass 1 can be utilized as a smart window which can be used for applications such as illumination, mirrors, and information display.

  Below, each of the component with which the multilayer glass 1 is provided is demonstrated in detail.

[Glass plate]
The glass plate 10 and the glass plate 11 have translucency and transmit at least part of visible light. The glass plate 10 and the glass plate 11 are transparent flat plates formed from, for example, soda glass or non-alkali glass. The glass plate 10 and the glass plate 11 are arrange | positioned facing each other, as shown in FIG.1 and FIG.3. Specifically, the glass plate 10 and the glass plate 11 are arrange | positioned so that a mutual distance (thickness of the internal space 12) may become substantially constant, ie, parallel. The distance between the glass plate 10 and the glass plate 11 is 6 mm, for example.

  The glass plate 10 and the glass plate 11 have substantially the same shape and substantially the same size, and are arranged so as to overlap each other in plan view. In addition, planar view means the case where the main surface (surface with the largest area) of the glass plate 10 and the glass plate 11 is seen from the front.

  The glass plate 10 and the glass plate 11 have a corner | angular part in planar view. The corner portion is a portion including a point (vertex) where two sides included in the circumference of the glass plate 10 intersect. For example, the planar view shapes of the glass plate 10 and the glass plate 11 are rectangular (rectangular), but may be a square or other polygons.

[Spacer]
The spacing material 20 is disposed along the circumference of the pair of glass plates 10 and 11 to separate the glass plate 10 and the glass plate 11 from each other. Specifically, the spacing member 20 is disposed between the glass plate 10 and the glass plate 11. For example, the spacing member 20 is a substantially rectangular frame body along the circumference of the glass plate 10 as shown in FIG.

  In the present embodiment, the spacing member 20 includes a spacer 21, an adhesive 22, and an adhesive 23 as shown in FIGS. 2 and 3.

  The spacer 21 is a member that maintains a constant distance between the glass plate 10 and the glass plate 11. That is, the spacer 21 forms the internal space 12 between the glass plate 10 and the glass plate 11 by separating the glass plate 10 and the glass plate 11.

  The spacer 21 includes, for example, a hollow member made of aluminum and a granular material filled in the hollow member. The hollow member is, for example, a substantially rectangular tube-shaped frame. As the particulate material, for example, a desiccant such as silica gel or zeolite can be used. Thereby, it is possible to suppress moisture from entering the internal space 12.

  The spacer 21 has a shape along the circumference of the pair of glass plates 10 and 11. Specifically, the spacer 21 is a substantially rectangular frame body along the circumference of the glass plate 10. In the present embodiment, the spacer 21 is a substantially rectangular frame, but may be formed by combining a plurality of members. For example, the spacer 21 may be formed by combining four substantially linear members (spacers).

  More specifically, as shown in FIG. 2, the spacer 21 is an octagonal frame body with corners inclined, and through holes 30 are provided in the diagonal corners. In the present embodiment, two through holes 30 are provided on the diagonal line.

  The adhesive 22 and the adhesive 23 adhere the spacer 21 to each of the glass plate 10 and the glass plate 11. Specifically, the adhesive 22 is applied to the side surface of the spacer 21 on the glass plate 10 side, and the adhesive 23 is applied to the side surface of the spacer 21 on the glass plate 11 side. As shown in FIG. 3, the adhesive 22 and the adhesive 23 respectively bond the spacer 21, the glass plate 10, and the glass plate 11 so that no gap is formed therebetween. For example, the adhesive 22 and the adhesive 23 inject an adhesive material between the spacer 21 and each of the glass plate 10 and the glass plate 11 after the glass plate 10 and the glass plate 11 are arranged so as to sandwich the spacer 21. It is formed by curing.

  As the adhesive 22 and the adhesive 23, for example, a photocurable, thermosetting, or two-component curable adhesive resin such as an epoxy resin, an acrylic resin, or a silicone resin can be used. Alternatively, as the adhesive 22 and the adhesive 23, a thermoplastic adhesive resin made of an acid-modified product such as polyethylene or polypropylene may be used.

[Through hole]
The through hole 30 communicates the internal space 12 and the external space. The through hole 30 is used for exhausting gas from the internal space 12 and supplying inert gas to the internal space 12 when the multilayer glass 1 is manufactured. In the present embodiment, two through holes 30 are provided, and one of the two through holes 30 is used for gas supply (air supply), and the other is used for gas exhaust.

  The through hole 30 is provided in the spacer 21. Specifically, a through hole 30 is provided in each of two corners on the diagonal line of the spacer 21. By disposing the two through holes 30 on the diagonal line, exhaust and supply of gas in the internal space 12, that is, gas exchange can be performed smoothly.

  The size (diameter) of the through hole 30 may be any size as long as a gas introduction head (see FIGS. 4A and 4B) described later can be inserted. For example, the diameter of the through hole 30 is 2 mm to 3 mm. In addition, in this Embodiment, although the shape of the through-hole 30 is a column shape, it is not restricted to this. For example, the through hole 30 may become thinner from the outer space toward the inner space 12.

[UV curable resin]
The ultraviolet curable resin 40 is provided in the through hole 30 and seals the internal space 12. The ultraviolet curable resin 40 is provided in the through hole 30 at a position closer to the internal space 12 than the sealing material 50. The ultraviolet curable resin 40 is filled in the through hole 30 so that the internal space 12 and the external space do not communicate with each other.

  As the ultraviolet curable resin 40, for example, an ultraviolet curable resin material such as an epoxy resin, an acrylic resin, or a silicone resin can be used. The ultraviolet curable resin 40 is formed by curing an ultraviolet curable resin material by ultraviolet irradiation. For example, when the viscosity of the ultraviolet curable resin material is high, the ultraviolet curable resin 40 may not be cured.

[Encapsulant]
The sealing material 50 is provided in the through hole 30 at a position closer to the external space than the ultraviolet curable resin 40. Specifically, the sealing material 50 is provided so as to fill the opening on the external space side of the through hole 30. As the sealing material 50, for example, a resin material such as butyl rubber can be used.

  In the multilayer glass 1 according to the present embodiment, the internal space 12 is sealed by two members of the ultraviolet curable resin 40 and the sealing material 50. In the present embodiment, as shown in FIG. 3, the ultraviolet curable resin 40 and the sealing material 50 are in contact with each other in the through hole 30, but the present invention is not limited to this. In the through hole 30, a space may be provided between the ultraviolet curable resin 40 and the sealing material 50. In addition, a desiccant such as silica gel may be provided in the space. Thereby, it is possible to suppress moisture from entering the internal space 12 through the through hole 30.

[Production method of multi-layer glass]
Then, the manufacturing method of the multilayer glass 1 which concerns on this Embodiment is demonstrated. Specifically, a method of enclosing an inert gas in the internal space 12 between the pair of glass plates 10 and the glass plate 11 will be described.

  Hereinafter, first, a gas introduction head used for filling (supplying) an inert gas or exhausting a gas will be described with reference to FIGS. 4A and 4B. 4A and 4B are diagrams each showing an example of a gas introduction head used for manufacturing the multilayer glass 1 according to the present embodiment.

  A gas introduction head 80 shown in FIG. 4A is an integrated gas introduction head including a gas pipe 81 and a resin nozzle 82. That is, by using the gas introduction head 80, both introduction of gas (or exhaust of gas) and discharge of the resin material can be performed.

  The gas pipe 81 is a pipe for supplying an inert gas. The gas pipe 81 is connected to an inert gas source, and the inert gas is discharged from the tip. When the gas introduction head 80 is used for gas exhaust, the gas in the internal space 12 can be exhausted to the external space via the gas pipe 81. In this case, the gas pipe 81 may be connected to, for example, a pump for exhausting gas.

  The resin nozzle 82 is a nozzle for discharging an ultraviolet curable resin material. The resin nozzle 82 is connected to a resin material source of an ultraviolet curable resin material, and the ultraviolet curable resin material is discharged from the tip. The resin nozzle 82 is disposed inside the gas pipe 81. Further, the tip of the resin nozzle 82 (resin discharge portion) protrudes from the tip of the gas pipe 81 (gas discharge portion).

  As shown in FIG. 4A, the gas introduction head 80 further includes an expansion sealing material 83, a compressed air pipe 84, a leak pipe 85, and a holding portion 86.

  The expansion sealing material 83 can expand and contract, and covers the gas pipe 81 and the resin nozzle 82. Specifically, the expansion sealing material 83 covers the gas pipe 81 and the resin nozzle 82 so that the tip of the gas pipe 81 and the tip of the resin nozzle 82 protrude. At this time, as shown in FIG. 4A, the distance from the front end of the resin nozzle 82 to the expansion sealing material 83 is longer than the distance from the front end of the gas pipe 81 to the expansion sealing material 83.

  The expansion sealing material 83 has a size that can be inserted into the through hole 30 when contracted, and a size that can fill the opening of the through hole 30 when expanded. For example, the expansion sealing material 83 expands when compressed air is sent in, and contracts by extracting (leaking) the supplied compressed air. The expansion sealing material 83 is, for example, an inflatate seal. Note that the expansion sealing material 83 is attached to the holding portion 86.

  The compressed air pipe 84 is a pipe for sending compressed air into the inside of the expansion sealing material 83. The compressed air pipe 84 is used when the expansion sealing material 83 is expanded.

  The leak pipe 85 is a pipe for removing (leaks) the compressed air sent into the expansion sealing material 83. The leak pipe 85 is used when the expansion sealing material 83 is contracted. For example, the leakage pipe 85 is provided with a valve, and the compressed air sent into the expansion sealing material 83 is released to the outside by opening the valve. One pipe may realize the functions of the compressed air pipe 84 and the leak pipe 85.

  The holding unit 86 holds the gas pipe 81, the resin nozzle 82, the compressed air pipe 84 and the leak pipe 85. Accordingly, the gas pipe 81, the resin nozzle 82, the compressed air pipe 84, and the leak pipe 85 can be held together, and the gas introduction head 80 can be reduced in size.

  In addition, you may use the gas introduction head 90 shown to FIG. 4B for manufacture of the multilayer glass 1 which concerns on this Embodiment. 4B is different from the gas introduction head 80 shown in FIG. 4A in that a gas pipe 91 and a resin nozzle 92 are provided instead of the gas pipe 81 and the resin nozzle 82. Further, the gas introduction head 90 includes a holding unit 97.

  The gas pipe 91 and the resin nozzle 92 are different from the gas pipe 81 and the resin nozzle 82 in that they are arranged close to each other. The gas pipe 91 and the resin nozzle 92 may be adjacent to each other, or may be disposed apart by a distance that can be inserted into the through hole 30. The functions of the gas pipe 91 and the resin nozzle 92 are the same as those of the gas pipe 81 and the resin nozzle 82. Further, the point that the tip of the resin nozzle 92 protrudes from the tip of the gas pipe 91 is the same.

  The holding unit 97 holds the gas pipe 81 and the resin nozzle 82. Thereby, for example, the holding unit 97 can hold the gas pipe 81 and the resin nozzle 82 arranged close together, and the gas introduction head 90 can be downsized.

[Gas filling]
Then, the manufacturing method (gas sealing method) of the multilayer glass 1 which concerns on this Embodiment is demonstrated using FIGS. FIG. 5 and FIG. 6 are a flowchart and a process diagram showing a method for manufacturing the multilayer glass 1 according to this embodiment, respectively. FIG. 7 is a diagram illustrating a state in which a gas is introduced into the internal space 12 of the multilayer glass 1 according to the present embodiment. FIG. 7 shows a cross section taken along line VII-VII shown in FIG.

  Hereinafter, a case where the gas introduction head 80 shown in FIG. 4A is used will be described.

  First, as shown in FIG. 6A, the gas introduction head 80 is inserted into the through hole 30 (S10 in FIG. 5). Specifically, the gas pipe 91, the resin nozzle 92, and the expansion sealing material 83 of the gas introduction head 80 are inserted. At this time, the expansion sealing material 83 is in a contracted state. In each of FIGS. 6A to 6G, the right side of the through hole 30 is an external space, and the left side is an internal space 12.

  In the present embodiment, two gas introduction heads 80 are used. As shown in FIG. 7, two through-holes 30 are provided on the diagonal line of the spacer 21 (spacer 20), and the gas introduction head 80 is inserted into each of them. One of the two gas introduction heads 80 is used to supply an inert gas to the internal space 12, and the other is used to supply gas (for example, air) that has accumulated in the internal space 12 before supplying the inert gas. Used to exhaust.

  After the gas introduction head 80 is inserted into the through hole 30, the expansion sealing material 83 is expanded as shown in FIG. 6B (S20 in FIG. 5). In the present embodiment, the through-hole 30 is sealed with the expansion sealing material 83 by expanding the expansion sealing material 83 before supplying the inert gas. Specifically, the expansion sealing material 83 is expanded by sending compressed air into the expansion sealing material 83 through the compressed air piping 84.

  Next, as shown in FIG. 6C, an inert gas (for example, Ar gas) is supplied to the internal space 12 through the gas pipe 81 (S30 in FIG. 5). At this time, the gas (air) in the internal space 12 is exhausted through the gas pipe 81 of the other gas introduction head 80. The supply of the inert gas and the exhaust of air may be started at the same time, or one of them may be started first. At this time, for example, by starting the exhaust of air first, it is possible to suppress an increase in the internal pressure of the internal space 12 due to the supply of the inert gas. Thereby, it can suppress that the glass plate 10 and the glass plate 11 are damaged by the raise of internal pressure.

  Next, after supplying an inert gas to the internal space 12, as shown in FIG. 6D, the ultraviolet curable resin material 41 is discharged into the through hole 30 through the resin nozzle 82 (S40 in FIG. 5). ). Thereby, the inert gas can be sealed in the internal space 12 by sealing the through hole 30 with the ultraviolet curable resin material 41.

  In the present embodiment, the tip of the resin nozzle 82 protrudes toward the internal space 12 from the tip of the gas pipe 81. Thereby, it can suppress that the ultraviolet curable resin material 41 discharged from the front-end | tip of the resin nozzle 82 covers a part of gas piping 81. FIG. For example, when the ultraviolet curable resin material 41 covers a part of the gas pipe 81, when the gas introduction head 80 is taken out from the through hole 30, the gas pipe 81 is pulled out, so that the through hole is formed in the ultraviolet curable resin material 41. May be formed. In this Embodiment, it can suppress that a through-hole is formed in the ultraviolet curable resin material 41, and can improve the sealing performance of the internal space 12 more.

  Next, after the ultraviolet curable resin material 41 is discharged, the gas introduction head 80 is taken out from the through hole 30 (S50 in FIG. 5). In the present embodiment, before the gas introduction head 80 is taken out from the through hole 30, first, as shown in FIG. 6E, the expansion sealing material 83 is contracted. Specifically, the expansion sealing material 83 is contracted by releasing the gas (compressed air) inside the expansion sealing material 83 to the outside using the leak pipe 85. Thereafter, the gas introduction head 80 is taken out from the through hole 30.

  Next, as shown in FIG. 6F, the ultraviolet curable resin material 41 is irradiated with ultraviolet rays using a UV light source 95 such as a spot UV irradiation device (S60 in FIG. 5). Thereby, the ultraviolet curable resin material 41 can be cured to form the ultraviolet curable resin 40. That is, the ultraviolet curable resin 40 is a cured ultraviolet curable resin material 41.

  Next, as shown in FIG. 6G, the sealing material 50 is inserted into the through hole 30 (S70 in FIG. 5). Specifically, the sealing material 50 is inserted into the through hole 30 from the external space side. The sealing material 50 may protrude from the through hole 30 into the external space, or may cover the opening of the through hole 30 on the external space side. Thereby, the through-hole 30 can be hermetically sealed double using the ultraviolet curable resin 40 and the sealing material 50.

  Note that after the sealing material 50 is inserted, the entire multilayer glass 1 or the outer periphery of the spacing material 20 may be sealed with a sealing material (so-called secondary seal). Thereby, sealing property can be improved further.

[Effects, etc.]
As described above, the method for manufacturing the multilayer glass 1 according to the present embodiment includes the step of inserting the gas introduction head 80 including the gas pipe 81 and the resin nozzle 82 into the through hole 30, and the gas pipe 81. A step of supplying an inert gas to the internal space 12, a step of supplying the inert gas to the internal space 12, and then discharging the ultraviolet curable resin material 41 into the through hole 30 through the resin nozzle 82; and an ultraviolet curable resin. After the material 41 is discharged, the method includes a step of removing the gas introduction head 80 from the through hole 30 and a step of curing the ultraviolet curable resin material 41 by irradiating it with ultraviolet rays.

  Thus, before the gas introduction head 80 is taken out, the ultraviolet curable resin material 41 is discharged into the through hole 30. Therefore, when the gas introduction head 80 is taken out, the internal space 12 can be sealed with the ultraviolet curable resin material 41. it can. Therefore, since the inert gas supplied to the internal space 12 can be prevented from leaking to the external space when the gas introduction head 80 is taken out, the multilayer glass 1 in which high-purity gas is sealed is manufactured. Can do.

  Further, for example, the resin nozzle 82 is disposed inside the gas pipe 81.

  Thereby, since the gas introduction head 80 can be reduced in size, the through-hole 30 can be made small. Therefore, for example, the amount of the ultraviolet curable resin material 41 can be reduced, and curing by irradiation with ultraviolet rays can be performed smoothly. Thereby, the multilayer glass 1 can be manufactured at low cost.

  Further, for example, a gas introduction head 90 may be used instead of the gas introduction head 80, and the resin nozzle 92 is disposed in the vicinity of the gas pipe 91.

  Thereby, since the gas introduction head 90 can be reduced in size, the through-hole 30 can be made small. Therefore, for example, the amount of the ultraviolet curable resin material 41 can be reduced, and curing by irradiation with ultraviolet rays can be performed smoothly. Thereby, the multilayer glass 1 can be manufactured at low cost.

  For example, the tip of the resin nozzle 82 protrudes from the tip of the gas pipe 81.

  Thereby, it can suppress that the ultraviolet curable resin material 41 discharged from the front-end | tip of the resin nozzle 82 covers a part of gas piping 81. FIG.

  In addition, for example, the gas introduction head 80 further includes an expansion sealing material 83 that can expand and contract to cover the gas pipe 81 and the resin nozzle 82, and the method for manufacturing the multilayer glass 1 further includes the gas introduction head 80. After inserting into the through hole 30 and before supplying the inert gas, the expansion sealing material 83 is expanded to seal the through hole 30 with the expansion sealing material 83, and the ultraviolet curable resin material 41 is discharged. Thereafter, before the gas introduction head 80 is taken out, the expansion sealing material 83 is contracted.

  Thereby, by using the expansion sealing material 83, the internal space 12 is hermetically sealed in both the inert gas supply process and the ultraviolet curable resin material 41 discharge process. Therefore, the sealing property of the internal space 12 can be further improved, and the multilayer glass 1 in which high-purity gas is sealed can be manufactured.

  In addition, the multilayer glass 1 according to the present embodiment is arranged along a circumference of a pair of glass plates 10 and 11 arranged facing each other, and the glass plates 10 and 11. In the through hole 30, a spacing material 20 that separates the glass plate 10 and the glass plate 11, a through hole 30 that communicates the internal space 12 formed by the glass plate 10, the glass plate 11, and the spacing material 20 and the external space, An ultraviolet curable resin 40 that is provided and seals the internal space 12 is provided, and the internal space 12 is filled with an inert gas.

  Thereby, since the ultraviolet curable resin 40 is provided in the through-hole 30, a high-purity inert gas can be sealed in the internal space 12. Since the internal space 12 is filled with the inert gas, the double-glazed glass 1 can enhance the heat insulation performance and can suppress the occurrence of condensation. In addition, since high-purity inert gas is sealed in the internal space 12, for example, when an organic EL element or the like is provided in the internal space 12, deterioration of the organic EL element can be suppressed.

  Further, for example, the spacer 20 includes a spacer 21 provided with a through hole 30, and an adhesive 22 and an adhesive 23 that adhere the spacer 21 to each of the glass plate 10 and the glass plate 11.

  Thereby, the distance between the glass plate 10 and the glass plate 11 can be ensured by the spacer 21. Further, by filling the spacer 21 with a desiccant or the like, the sealing performance of the internal space 12 can be further improved.

  Further, for example, the multilayer glass 1 further includes a sealing material 50 provided in a position closer to the external space than the ultraviolet curable resin 40 in the through hole 30.

  Thereby, since the through-hole 30 can be doubly sealed by the ultraviolet curable resin 40 and the sealing material 50, the sealing performance of the internal space 12 can be further enhanced.

(Embodiment 2)
Subsequently, the multilayer glass according to Embodiment 2 will be described.

  In the following description, differences from Embodiment 1 will be mainly described, and description of the same points may be omitted or simplified.

  8 and 9 are cross-sectional views of the multilayer glass 100 according to the present embodiment. 8 corresponds to a cross section taken along line VII-VII in FIG. FIG. 9 corresponds to a cross section taken along line IX-IX in FIG.

  The multilayer glass 100 according to the present embodiment includes a spacing material 120 and a through hole 130 instead of the spacing material 20 and the through hole 30 as compared with the multilayer glass 1 according to the first embodiment. In the present embodiment, the through hole 130 is formed by the spacing material 120, the glass plate 10, and the glass plate 11.

  The spacing member 120 is an adhesive 120 b that includes a granular spacer 120 a and is continuously provided along the circumference of the pair of glass plates 10 and 11 except for at least one intermittent portion 121. In the present embodiment, two intermittent portions 121 are provided on the diagonal line of the multi-layer glass 100. Specifically, the intermittent part 121 is provided at the corners of the glass plate 10 and the glass plate 11.

  The granular spacer 120a is a particle for maintaining a constant space between the glass plate 10 and the glass plate 11, and is, for example, a glass bead, a resin bead, or a silica particle. A plurality of granular spacers 120a are included in the adhesive 120b (note that the granular spacers 120a are not shown in FIG. 8). The plurality of granular spacers 120a are spheres having substantially the same diameter.

  The adhesive 120 b is a member that bonds the glass plate 10 and the glass plate 11 in order to seal the internal space 12. The adhesive 120 b is formed in a predetermined shape along the circumference of the pair of glass plates 10 and the glass plate 11.

  As the adhesive 120b, for example, a photocurable, thermosetting, or two-component curable adhesive resin such as an epoxy resin, an acrylic resin, or a silicone resin can be used. Alternatively, as the adhesive 120b, a thermoplastic adhesive resin made of an acid-modified product such as polyethylene or polypropylene may be used.

  In the present embodiment, the spacing material 120 is formed by a coating method, a printing method, or the like. For example, first, a resin material (adhesive 120b) containing granular spacers 120a is drawn and applied in a predetermined shape on at least one of the glass plate 10 and the glass plate 11 using a dispenser or the like. The intermittent portion 121 is formed by the drawing application. After the drawing application, the glass plate 10 and the glass plate 11 are bonded together, and the spacing material 120 is formed by curing the resin material (adhesive 120b).

  The intermittent part 121 is a part of the spacing material 120 and is provided to form the through hole 130. In the present embodiment, the spacing member 120 is formed so as to be continuous along the circumference of the pair of glass plates 10 and 11 in plan view, but is interrupted at two locations. The intermittent portion 121 corresponds to a portion where the spacing material 120 is interrupted.

  The intermittent part 121 is provided at the corners of the glass plate 10 and the glass plate 11. Specifically, the intermittent portion 121 is provided at each of two corner portions on the diagonal line of the glass plate 10 and the glass plate 11.

  In the present embodiment, as shown in FIG. 8, the intermittent portion 121 includes a first outer peripheral portion 122, a second outer peripheral portion 123, and an inner peripheral portion 124. The through hole 130 is formed by the first outer peripheral portion 122, the inner peripheral portion 124, and the pair of glass plate 10 and glass plate 11.

  The first outer peripheral portion 122 and the second outer peripheral portion 123 are provided along one side and the other side of the corner portion. In this Embodiment, since the planar view shape of the glass plate 10 and the glass plate 11 is a substantially rectangular shape, the one side and other side of a corner | angular part are substantially orthogonal. Therefore, the extended line of the 1st outer peripheral part 122 and the 2nd outer peripheral part 123 is substantially orthogonal.

  An end portion of the second outer peripheral portion 123 is disposed so as to be separated from the first outer peripheral portion 122. Specifically, as shown in FIG. 8, the end portion of the second outer peripheral portion 123 is separated from the first outer peripheral portion 122 in plan view, and the end portion of the second outer peripheral portion 123 and the first outer peripheral portion 122. The space between and corresponds to the opening on the outer space side of the through hole 130.

  The inner peripheral portion 124 extends from the end portion of the second outer peripheral portion 123 toward the inner space 12 side. In the present embodiment, the inner peripheral portion 124 is provided in parallel to the first outer peripheral portion 122.

  Here, as shown in FIG. 8, an ultraviolet curable resin 40 and a sealing material 50 are provided between the inner peripheral portion 124 and the first outer peripheral portion 122. The ultraviolet curable resin 40 and the sealing material 50 fill the through hole 130, that is, as shown in FIGS. 8 and 9, and between the inner peripheral portion 124 and the first outer peripheral portion 122, and the glass plate 10. And the glass plate 11 are provided so as to be filled.

  The method of providing the ultraviolet curable resin 40 and the sealing material 50 is the same as in the first embodiment. For example, as shown in FIG. 10, one of the two through holes 130 can be used for supplying an inert gas, and the other can be used for exhausting the gas in the internal space 12. In addition, FIG. 10 is a figure which shows a mode that gas is introduce | transduced into the internal space 12 of the multilayer glass 100 which concerns on this Embodiment. After supplying the inert gas to the internal space 12, the internal space 12 is sealed by closing the through hole 130 in the order of the ultraviolet curable resin 40 and the sealing material 50.

[Effects, etc.]
As described above, in the multi-layer glass 100 according to the present embodiment, the spacing member 120 includes the granular spacer 120a, and at least one intermittent portion is provided along the circumference of the pair of glass plates 10 and the glass plate 11. The adhesive 120 b is provided continuously except for 121, and the through hole 130 is formed by the intermittent portion 121, the glass plate 10, and the glass plate 11.

  Thereby, similarly to Embodiment 1, the high-purity gas is enclosed with the double-glazed glass 100, heat insulation performance can be improved, and generation | occurrence | production of dew condensation can be suppressed. Furthermore, since the adhesive 120b containing the granular spacer 120a is used as the spacing material 120, the degree of freedom in design can be increased. For example, since the spacer 120 can be formed by drawing application using a dispenser or the like, the shape of the spacer 120 can be easily changed according to the shape of the glass plate 10 and the glass plate 11.

  Further, for example, the pair of glass plate 10 and glass plate 11 have corner portions in plan view, and the intermittent portion 121 is provided at the corner portions.

  Thereby, the through-hole 130 can be made inconspicuous by providing the intermittent part 121 (through-hole 130) in a corner | angular part.

  In addition, for example, the intermittent portion 121 is provided along the first outer peripheral portion 122 provided along one side of the corner portion and the other side of the corner portion, and the end portion is disposed apart from the first outer peripheral portion 122. The second outer peripheral portion 123 and an inner peripheral portion 124 extending from the end of the second outer peripheral portion 123 toward the inner space 12 are provided. The through-hole 130 includes the first outer peripheral portion 122 and the inner peripheral portion 124. And a pair of glass plate 10 and glass plate 11. For example, the inner peripheral portion 124 and the first outer peripheral portion 122 are parallel.

  Thereby, the length in the penetration direction of the through-hole 130 can be lengthened by providing the inner peripheral part 124. That is, since the distance between the internal space 12 and the external space can be increased, it is possible to prevent moisture or air from entering the internal space 12 through the through hole 130 from the external space.

(Modification)
Below, the modification of the multilayer glass which concerns on Embodiment 2 is demonstrated using FIG. FIG. 11 is a cross-sectional view showing a corner portion of the multilayer glass according to this modification. The cross section shown in FIG. 11 corresponds to the cross section shown in FIG.

  In this modification, intermittent portions 221 are provided at the corners. The intermittent part 221 includes an inner peripheral part 224 instead of the inner peripheral part 124 as compared with the second embodiment.

  The inner peripheral portion 224 extends from the end portion of the second outer peripheral portion 123 toward the internal space 12. As shown in FIG. 11, the widths of the inner peripheral portion 224 and the first outer peripheral portion 122 become narrower from the outer space toward the inner space 12. In other words, the inner peripheral part 224 is provided so as to approach the first outer peripheral part 122 as it goes from the external space to the internal space 12.

  The through hole 230 according to this modification is formed by the inner peripheral portion 224, the first outer peripheral portion 122, the glass plate 10 and the glass plate 11. Therefore, the opening on the inner space 12 side of the through hole 230 is smaller than the opening on the outer space side. Specifically, the opening width of the through hole 230 is gradually (smoothly) narrowed from the outer space toward the inner space 12.

  As described above, according to the multilayer glass according to the present modification, the widths of the inner peripheral portion 124 and the first outer peripheral portion 122 become narrower from the outer space toward the inner space 12.

  Thereby, since the width | variety of the through-hole 230 is so narrow that it is near the internal space 12, when the ultraviolet curable resin material 41 is discharged, it can be made easy to fill the through-hole 230. FIG. Therefore, for example, the amount of the ultraviolet curable resin material 41 can be reduced, and curing by irradiation with ultraviolet rays can be performed smoothly. Thereby, the multilayer glass which concerns on this modification can be manufactured at low cost.

  In this modification, the example in which the width between the inner peripheral portion 224 and the first outer peripheral portion 122 is gradually (smoothly) narrowed has been described. However, the width may be gradually reduced.

(Other)
As mentioned above, although the multilayer glass concerning this invention and its manufacturing method were demonstrated based on the said embodiment and its modification, this invention is not limited to said embodiment.

  For example, in the above-described embodiment, the pair of glass plates 10 and the glass plate 11 do not have to have corners in plan view. For example, the pair of glass plate 10 and the glass plate 11 may have a circular shape or an oval shape in plan view. Moreover, a pair of glass plate 10 and the glass plate 11 are not restricted to a flat plate, A curved plate may be sufficient.

  Further, for example, in the above-described embodiment, the pair of glass plates 10 and the glass plate 11 may have different shapes. For example, the glass plate 10 may be a rectangular plate, and the glass plate 11 may be a circular plate. In this case, one of the glass plate 10 and the glass plate 11 is disposed inside the other so as not to protrude outside the other in plan view.

  Further, for example, in the above embodiment, the multilayer glass 1 or 100 may further include a glass plate. For example, the internal space 12 may be divided into two by providing a glass plate between the pair of glass plates 10 and 11.

  For example, in the above-described embodiment, an example in which two through holes 30 are provided has been described, but only one through hole 30 may be provided. For example, after the internal space 12 is evacuated by bonding the glass plate 10 and the glass plate 11 through the spacer 20 under vacuum, an inert gas is introduced into the vacuum internal space 12 using the gas introduction head 80. You may supply. Alternatively, the gas introduction head 80 may further include an exhaust gas pipe, and the exhaust of gas and the supply of inert gas may be performed through one through hole 30. For example, the tip of the gas pipe 81 for supplying the inert gas protrudes beyond the tip of the gas pipe for exhaust, and the inert gas is supplied into the inner space 12 and gas is supplied from the portion near the through hole 30. You may exhaust.

  Further, for example, in the above-described embodiment, the through holes 30 or 130 are provided at the corners in the plan view of the glass plate 10 and the glass plate 11, but the present invention is not limited thereto. The through hole 30 or 130 may be provided on the side (straight portion) of the frame-shaped spacer 20 or 120.

  Further, for example, in the above-described embodiment, the through hole 30 is provided in the spacer 21, and the through hole 130 is formed of the spacer 120 and the pair of glass plates 10 and 11. Not limited to. For example, the through hole may be provided in at least one of the glass plate 10 and the glass plate 11.

  Further, for example, in the above-described embodiment, the spacer 20 or 120 is provided between the glass plate 10 and the glass plate 11, but this is not a limitation. For example, you may use the spacing material (for example, aluminum sash etc.) which spaces apart the glass plate 10 and the glass plate 11 by pinching each edge part of the glass plate 10 and the glass plate 11. FIG.

  For example, the sealing material 50 does not need to be provided. That is, only the ultraviolet curable resin 40 may be provided in the through hole 30.

  For example, the UV light source 95 may be combined with the gas introduction head 80 or 90. That is, a gas introduction head in which the gas pipe 81 or 91, the resin nozzle 82 or 92, and the UV light source 95 are integrated may be used. In this case, after the UV curable resin material 41 is cured by the UV light source 95, the gas introduction head may be taken out from the through hole 30.

  In addition, the embodiment can be realized by arbitrarily combining the components and functions in each embodiment without departing from the scope of the present invention, or a form obtained by subjecting each embodiment to various modifications conceived by those skilled in the art. Forms are also included in the present invention.

DESCRIPTION OF SYMBOLS 1,100 Multi-layer glass 10,11 Glass plate 12 Internal space 20,120 Spacer 21,120a Spacer 22,23,120b Adhesive 30,130,230 Through-hole 40 UV curable resin 41 UV curable resin material 50 Sealing material 80, 90 Gas introduction head 81, 91 Gas piping 82, 92 Resin nozzle 83 Expansion sealing material 121, 221 Intermittent part 122 First outer peripheral part 123 Second outer peripheral part 124, 224 Inner peripheral part

Claims (13)

A pair of glass plates arranged facing each other;
A spacing member disposed along the circumference of the pair of glass plates to separate the pair of glass plates;
A through hole communicating the internal space and the external space formed by the pair of glass plates and the spacing member;
An ultraviolet curable resin provided in the through hole and sealing the internal space;
The inner space is filled with an inert gas. The spacing material is
A spacer provided with the through hole;
The multilayer glass according to claim 1, further comprising an adhesive that bonds the spacer to each of the pair of glass plates. The spacer is an adhesive containing a granular spacer and continuously provided along the circumference of the pair of glass plates except for at least one intermittent portion,
The multilayer glass according to claim 1, wherein the through hole is formed by the intermittent portion and the pair of glass plates. The pair of glass plates have corners in plan view,
The multilayer glass according to claim 3, wherein the intermittent portion is provided at the corner portion. The intermittent part is
A first outer peripheral portion provided along one side of the corner portion;
A second outer peripheral portion provided along the other side of the corner portion and having an end portion spaced apart from the first outer peripheral portion;
An inner periphery extending from the end of the second outer periphery to the inner space side,
The multilayer glass according to claim 4, wherein the through hole is formed by the first outer peripheral portion, the inner peripheral portion, and the pair of glass plates. The multilayer glass according to claim 5, wherein the inner peripheral portion and the first outer peripheral portion are parallel to each other. The multilayer glass according to claim 5, wherein a width between the inner peripheral portion and the first outer peripheral portion becomes narrower from the external space toward the internal space. The multilayer glass according to any one of claims 1 to 7, further comprising a sealing material provided in a position closer to the external space than the ultraviolet curable resin in the through hole. . A method for producing a multilayer glass,
The multilayer glass is
A pair of glass plates arranged facing each other;
A spacing member disposed along the circumference of the pair of glass plates to separate the pair of glass plates;
A through hole communicating the internal space and the external space formed by the pair of glass plates and the spacing member;
The method for producing the multilayer glass is as follows:
Inserting a gas introduction head having a gas pipe and a resin nozzle into the through hole;
Supplying an inert gas to the internal space via the gas pipe;
After supplying the inert gas into the internal space, discharging the ultraviolet curable resin material into the through-holes through the resin nozzle;
After discharging the ultraviolet curable resin material, removing the gas introduction head from the through hole;
And a step of curing the ultraviolet curable resin material by irradiating with ultraviolet rays. The method for producing a multilayer glass according to claim 9, wherein the resin nozzle is disposed inside the gas pipe. The method for producing a multilayer glass according to claim 9, wherein the resin nozzle is disposed in proximity to the gas pipe. The method for producing a multilayer glass according to claim 10 or 11, wherein a tip of the resin nozzle protrudes from a tip of the gas pipe. The gas introduction head further includes an expansion sealing material that can expand and contract to cover the gas pipe and the resin nozzle,
The method for producing the multilayer glass further includes:
After inserting the gas introduction head into the through hole and before supplying the inert gas, by expanding the expansion sealing material, sealing the through hole with the expansion sealing material;
The method for producing a multilayer glass according to any one of claims 9 to 12, further comprising a step of shrinking the expansion sealing material after discharging the ultraviolet curable resin material and before taking out the gas introduction head. .

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