Insulating glass

Abstract

To provide a double-layer glass that has the strength to construct fitting without a casing body and that can ensure heat insulation.SOLUTION: Provided is a double-layer glass, which is a double-layer glass in which at least two glass plates are separately disposed via a spacer and a hollow layer is formed in the gap between the glass plates, and in which a reinforcing member is disposed at the peripheral edge part of the gap between the glass plates and on the more glass plate end edge side than the spacer. The reinforcing member has an elastic strength greater than that of the glass plate and is made of fiber-reinforced plastic. Thereby, the strength of the double-layer glass can be improved and the heat insulation property can be ensured.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to insulating glazing. [Background technology]

[0002] Conventionally, in order to improve thermal insulation and soundproofing, insulating glass has been used as a glass window arranged in an opening of a building. The insulating glass has, for example, at least two glass plates and a spacer. The spacer is arranged on the periphery between the two glass plates to separate the two glass plates. A sealing material is arranged between the spacer and the glass plates. This seals the hollow layer sandwiched between the glass plates, forming the insulating glass.

[0003] When manufacturing fittings such as sliding windows using insulating glass, it is common to manufacture the fittings by fitting the insulating glass into a rectangular frame. This provides sufficient strength for the fittings. Meanwhile, a technique has been disclosed for imparting shape retention and long-term durability to the insulating glass itself, in which a resin spacer or a metal spacer is placed in the gap between the glass sheets in addition to the conventional spacer (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2006-273705 A Summary of the Invention [Problem to be solved by the invention]

[0005] From the viewpoint of improving design, it would be preferable to improve the strength of the insulating glass and minimize the overlap of the frame on the glass surface, or to construct a fixture without a frame. However, when a resin spacer is simply placed to achieve the above-mentioned objective, as disclosed in Patent Document 1, the fixture does not have sufficient strength. On the other hand, when a metal spacer is placed, there is a problem that the heat insulation of the fixture is reduced.

[0006] The present disclosure has been made in consideration of the above, and aims to provide insulating glass that can reduce the size of the frame or has the strength to form a building fixture without the frame, while still ensuring thermal insulation. [Means for solving the problem]

[0007] The present disclosure relates to a double-glazing unit having at least two glass plates separated by a spacer and a hollow layer formed in the gap between the glass plates, wherein a reinforcing member is arranged on the periphery of the gap between the glass plates and on the edge side or inner side of the glass plates relative to the spacer, and the reinforcing member is made of a fiber-reinforced plastic having an elastic strength equal to or greater than that of the glass plates. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing insulating glass according to a first embodiment. [Diagram 2] 2 is a cross-sectional view taken along line AA in FIG. 1. [Diagram 3] FIG. 3 is an enlarged cross-sectional view of FIG. 2. [Figure 4] FIG. 5 is an enlarged cross-sectional view showing the insulating glass according to the second embodiment. [Diagram 5] FIG. 11 is an enlarged cross-sectional view showing an insulating glass according to a third embodiment. [Figure 6] FIG. 11 is an enlarged cross-sectional view showing an insulating glass according to a fourth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] First Embodiment The insulating glass 1 according to this embodiment includes a plurality of glass plates, that is, a glass plate 21, a glass plate 22, and a glass plate 23, a reinforcing member 3, a spacer 41 and a spacer 42, and a film 5. In the following description, the X direction refers to the thickness direction of the insulating glass 1, the Y direction refers to the width direction of the insulating glass 1 perpendicular to the X direction, and the Z direction refers to the height direction of the insulating glass 1 perpendicular to the X direction and the Y direction.

[0010] 1 and 2, the insulating glass 1 has three rectangular glass plates 21, 22, and 23, and frame-shaped spacers 41 and 42 disposed on the periphery of the gaps between the glass plates. The glass plates 21, 22, and 23 are spaced apart by the spacers 41 and 42. With this configuration, the hollow layer 6 is sealed.

[0011] The glass plates 21, 22, and 23 are not particularly limited, and may be made of float glass manufactured by a float method, tempered glass, or the like. They may also be laminated glass, figured glass, wired glass, or the like. The number of glass plates in the double-glazing 1 of this embodiment is three, but is not limited thereto, and may be two or more. The glass plates arranged on the outer surface of the double-glazing are preferably laminated glass formed by sandwiching a film 5 described later. This is because the film 5 can favorably decorate the periphery of the double-glazing where the spacer and the reinforcing member are arranged. In addition, if an ultraviolet protection film is used for the film 5, the spacer and the reinforcing member can be prevented from being deteriorated by ultraviolet rays. In this embodiment, the glass plates 21 and 23 arranged on the outer surface of the double-glazing 1 are laminated glass, and the glass plate 22 arranged inside the double-glazing 1 is a single glass plate. The glass plate 22 is shorter in the Y direction than the glass plates 21 and 23, and is arranged in a staggered manner. This allows a wide space to be secured for arranging the reinforcing member 3. In addition to the above, a set of reinforcing members 3 can reinforce three glass sheets.

[0012] The reinforcing member 3 is a member that suppresses bending of the insulating glass 1 and ensures strength. The reinforcing member 3 is disposed on the periphery of the gap between the glass plates, and separates the glass plates in the X direction. The reinforcing member 3 is disposed, for example, in contact with the mutually opposing inner faces of the glass plates. The reinforcing member 3 is disposed closer to the edge of the glass plate than spacers 41 and 42, which will be described later. The reinforcing member 3 may be disposed with a gap between it and the spacers 41 and 42.

[0013] When the number of glass plates is three or more, the reinforcing member 3 is preferably disposed in all of the gaps between the glass plates. The reinforcing member 3 is preferably disposed at both ends of the insulating glass 1 in at least one of the Y direction and the Z direction, and more preferably disposed at both ends in both the Y direction and the Z direction. The reinforcing member 3 is more preferably disposed in a frame shape so as to surround the spacer and the hollow layer 6. As a result, the structure of the insulating glass 1 has a monocoque structure in which the multiple glass plates and the reinforcing member 3 are integrated, so that a strength higher than the strength obtained by simply adding up the strengths of each member can be obtained. In other words, while the glass strength is usually maintained by a frame (not shown) used at the end of the glass, the width of the frame exposed to the XY plane of the glass 1 inside and outside the room can be reduced. Or, the frame can be omitted and only the glass 1 can be used. Therefore, the frame can be contained within the frame, and it is possible to provide a fitting with a specification in which the frame is not visible from inside and outside the room, or the frame is not present.

[0014] The reinforcing member 3 is made of fiber-reinforced plastic. This allows the insulating glass 1 to have the strength to form a fixture without a frame, and ensures heat insulation. Examples of fiber-reinforced plastics include carbon fiber-reinforced plastics (CFRP) in which carbon fiber is used as reinforcing fiber and is impregnated with a resin such as a thermosetting resin or a thermoplastic resin and hardened, and glass fiber-reinforced plastics (GFRP) in which glass fiber is used as reinforcing fiber. In addition to the above, the reinforcing fiber that constitutes the fiber-reinforced plastic may be aramid fiber, boron fiber, or the like. The fiber-reinforced plastic may be any of isotropic and orthotropic fiber-reinforced plastics and unidirectional fiber-reinforced plastic composite materials. The reinforcing member 3 can be manufactured by, for example, bonding sheet-shaped fiber-reinforced plastics together and heating them in an autoclave or the like.

[0015] The reinforcing member 3 has an elastic strength equal to or greater than that of a glass plate. In this specification, the elastic strength refers to Young's modulus, and the Young's modulus of a glass plate is approximately 71,600 MPa. The Young's modulus can be measured in accordance with the general rules prescribed in JIS K 7161, and in accordance with either JIS K 7164 (isotropic and orthotropic fiber reinforced plastics) or JIS K 7165 (unidirectional fiber reinforced plastic composite materials) depending on the type of fiber reinforced plastic.

[0016] As shown in FIG. 3, the reinforcing member 3 has a first reinforcing member 31a and a second reinforcing member 32. FIG. 3 is a cross-sectional view of an enlarged portion of the cross-sectional view of line AA in FIG. 1. The first reinforcing member is bonded and fixed to the mutually opposing inner surfaces of the glass plates. When there are three or more glass plates, the first reinforcing member may be fixed to at least two glass plates arranged on the outer surface. In this embodiment, the first reinforcing member 31a is two members fixed by adhesive A to the mutually opposing inner surfaces of the glass plate 21 and the glass plate 23. The first reinforcing member may be composed of one member. The first reinforcing member 31a is a plate-shaped member consisting of a surface arranged along the surface direction of the glass surface and a surface arranged along the thickness direction of the glass plate, and has an L-shaped cross section as shown in FIG. 3.

[0017] The second reinforcing member 32 is adhered and fixed to the first reinforcing member 31a. The shape of the second reinforcing member 32 is not particularly limited, but may be, for example, a substantially rectangular parallelepiped shape. Any one surface of the second reinforcing member 32 is fixed to a surface of the first reinforcing member 31a arranged along the thickness direction of the glass plate by adhesive A. The second reinforcing member 32 is adhered and fixed to each of the two first reinforcing members 31a. In this way, the second reinforcing member 32 is fixed to the two first reinforcing members 31a fixed to the glass plate 21 and the glass plate 23, respectively, and the glass plate and the reinforcing member are integrated.

[0018] The above-described configuration of the reinforcing member 3 having the first reinforcing member 31a and the second reinforcing member 32 can simplify the manufacturing process of the insulating glass 1. For example, if the reinforcing member 3 is configured as a single member, it is difficult to insert the reinforcing member 3 between the glass plates and fix it with adhesive because the adhesive is scraped off when the reinforcing member 3 is inserted. The above-described configuration of the reinforcing member 3 makes it possible to fix the first reinforcing member 31a to the glass plates and the second reinforcing member 32 to the first reinforcing member 31a after the spacers 41 and 42 are placed between the glass plates 21, 22, and 23 by the conventional method, and therefore the reinforcing member 3 can be easily bonded and fixed between the glass plates.

[0019] The spacer 41 and the spacer 42 form a hollow layer 6 in the gap between the glass plates. The spacer 41 and the spacer 42 are arranged in the peripheral portion of the gap between the glass plates in contact with the inner surfaces of the glass plates facing each other, similar to the reinforcing member 3. The spacer 41 separates the glass plates 21 and 22, and the spacer 42 separates the glass plates 22 and 23 in the X direction. The hollow layer 6 is formed in the gap between the glass plates 21 and 22, and in the gap between the glass plates 22 and 23. As shown in FIG. 2 and FIG. 3, the spacer 41 and the spacer 42 are arranged on the inner periphery side of the glass plates relative to the reinforcing member 3. This makes it possible to secure a space for arranging the reinforcing member 3 on the outer periphery side of the spacer in the gap between the glass plates. In addition to the above, the reinforcing member 3 can be arranged after the spacer 41 and the spacer 42 are arranged between the insulating glass 1 by a conventional method.

[0020] Conventionally known spacers can be used for the spacers 41 and 42. The spacers 41 and 42 may be, for example, configured of a hollow pipe material filled with a desiccant such as zeolite, a first seal material disposed on both side surfaces facing the glass plate, and a second seal material disposed on the edge side of the glass plate. In addition to the above, the spacers 41 and 42 may be integrally formed from a resin-based material.

[0021] The film 5 is sandwiched and disposed between two glass plates constituting the laminated glass. In this embodiment, the glass plates 21 and 23 disposed on the outer surfaces of the insulating glass 1 are the laminated glass. The film 5 is a colored film and disposed on the periphery of the glass plates 21 and 23. By disposing the film 5, the spacers 41, 42, and the reinforcing member 3 can be concealed so as to be difficult to see from the X direction. This improves the design of the insulating glass 1. In addition, if an ultraviolet protection film is used for the film 5, deterioration of the spacers and the reinforcing member due to ultraviolet rays can be prevented. By disposing the film 5 between the laminated glass, peeling and deterioration of the film 5 can be suppressed, which is preferable. The film 5 may be disposed, for example, on the outside of the glass plates, instead of between the laminated glass.

[0022] The hollow layer 6 is formed in the gap between the glass plates 21 and 22 and in the gap between the glass plates 22 and 23. The hollow layer 6 is sealed by a spacer 41 and a spacer 42. The gas sealed in the hollow layer 6 is, for example, air or an inert gas such as argon gas or krypton gas.

[0023] Next, another embodiment of the present invention will be described. Description of the same configuration as the first embodiment may be omitted.

[0024] Second Embodiment Fig. 4 is a schematic cross-sectional view showing the configuration of insulating glass 1a according to this embodiment. Fig. 4 is an enlarged view of the Y-direction end of the AA cross-sectional view in Fig. 1. As shown in Fig. 4, insulating glass 1a according to this embodiment has three glass plates arranged in staggered steps. Glass plate 21 and glass plate 22 are shorter in length in the Y direction than glass plate 23. All of the glass plates are single-pane glass plates. The insulating glass 1a has a reinforcing member 3a. The reinforcing member 3a has first reinforcing members 31a and 31b and a second reinforcing member 32.

[0025] The first reinforcing member 31b is a plate-like member consisting of a surface arranged along the surface direction of the glass plate and a surface arranged along the thickness direction of the glass plate, and has a T-shaped cross section as shown in FIG. 4. The surface of the first reinforcing member 31b arranged along the surface direction of the glass plate is exposed to the outside and is fixed to the outer surface of the glass plate 21 with adhesive A. The first reinforcing member 31b has the same effect as the first reinforcing member 31a. In addition to the above, the first reinforcing member 31b can conceal the spacer 41, the spacer 42, and the reinforcing member 3 so that they are difficult to see from the X direction. Therefore, even if the film 5 is not used, the design of the insulating glass 1a can be improved. In this embodiment, one of the first reinforcing members is the first reinforcing member 31b having a T-shape and the other is the first reinforcing member 31a having an L-shape, but both may be the first reinforcing member 31b.

[0026] Third Embodiment FIG. 5 is a schematic cross-sectional view showing the configuration of a double-glazing unit 1b according to this embodiment. FIG. 5 is an enlarged view of the Y-direction end of the AA cross-sectional view in FIG. 1. As shown in FIG. 5, the double-glazing unit 1b has a glass plate 21, a glass plate 22, and a glass plate 23 that are equal in length in the Y direction. All of the glass plates are single-pane glass plates. The double-glazing unit 1b has a reinforcing member 3b. The reinforcing member 3b has a first reinforcing member 31a and a second reinforcing member 32. The first reinforcing member 31a and the second reinforcing member 32 are disposed between the glass plate 21 and the glass plate 22, and between the glass plate 22 and the glass plate 23, respectively. Other than the above, the first reinforcing member 31a and the second reinforcing member 32 have the same configuration as in the first embodiment.

[0027] The insulating glass 1b according to this embodiment has reinforcing members disposed between each of the glass panes, which improves the strength of the insulating glass 1b. Moreover, the insulating glass 1b can be constructed using only glass panes of the same size, which reduces the manufacturing cost of the insulating glass 1b.

[0028] Fourth Embodiment Fig. 6 is a schematic cross-sectional view showing the configuration of insulating glass 1c according to this embodiment. Fig. 6 is an enlarged view of the Y-direction end of the AA cross-sectional view in Fig. 1. As shown in Fig. 6, the configurations of the glass plates 21, 22, and 23 of the insulating glass 1c are similar to those of the insulating glass 1b according to the third embodiment. The insulating glass 1c has a reinforcing member 3c. The reinforcing member 3c has a pair of first reinforcing members 31b. The pair of first reinforcing members 31b are arranged between the glass plates 21 and 22, and between the glass plates 22 and 23, respectively.

[0029] 6, the first reinforcing member 31b has a substantially L-shaped cross section, and has surfaces that are fixed to the opposing inner surfaces of the glass plate with adhesive A, and an inclined surface 311. The pair of first reinforcing members 31b are arranged such that two first reinforcing members 31b having the same shape abut against each other's inclined surfaces 311. The abutting inclined surfaces 311 of the pair of first reinforcing members 31b are bonded and fixed to each other with adhesive A.

[0030] The procedure for arranging the pair of first reinforcing members 31b will be described below. First, one of the first reinforcing members 31b is adhered and fixed to the inner surface of the glass plate with adhesive A in an arrangement in which the inclined surface 311 is visible from the end direction of the glass plate. Next, the other first reinforcing member 31b is adhered to the first reinforcing member 31b with adhesive A so that the inclined surfaces 311 abut against each other, and is also adhered to the inner surface of the glass plate with adhesive A. At this time, it is preferable to slide the other first reinforcing member 31b along the inclined surface 311 from a state in which the inclined surfaces 311 abut against each other but do not abut against the inner surface of the glass plate, and move it to a position where it abuts against the inner surface of the glass plate. This allows the pair of first reinforcing members 31b to be adhered and fixed to the inner surfaces of the glass plate facing each other without the adhesive A being scraped off.

[0031] In addition to the effects of the third embodiment, the insulating glass 1c according to this embodiment has the following effects: The insulating glass 1c does not have a second reinforcing member, and the reinforcing member 3c is composed of two first reinforcing members 31b having the same shape, so that the manufacturing cost of the insulating glass 1c can be reduced.

[0032] The present disclosure is not limited to the above-mentioned embodiment, and modifications, improvements, etc. are included in the present disclosure. In the above-mentioned first to fourth embodiments, the reinforcing member is used on the glass edge side of the spacer, but the reinforcing member may be used on the inner peripheral side of the spacer (the spacer is on the glass edge side of the reinforcing member) at the end of the glass. In the second, third, and fourth embodiments, the glass plates constituting the double-glazing are single-pane glass plates, but the above is not limited thereto. The configurations of the second, third, and fourth embodiments may be combined with the configuration of laminated glass having the film 5. In the second embodiment, the first reinforcing member 31b bonded to the outer surface of the glass plate has been described as having a T-shape, but the above is not limited thereto. The first reinforcing member 31b bonded to the outer surface of the glass plate may be an L-shape. [Explanation of symbols]

[0033] 1, 1a, 1b double-glazing glass, 21, 22, 23 glass plate, 3, 3a, 3b, 3c reinforcing member, 31a, 31b, 31c first reinforcing member, 32 second reinforcing member, 41, 42 spacer, 5 film, 6 hollow layer

Claims

1. In a double-glazing unit, at least two glass sheets are spaced apart via a spacer, and a hollow layer is formed in the gap between the glass sheets, The glass sheets include a pair of outer surface glass sheets arranged on the outer surfaces of the insulating glass, and an intermediate glass sheet arranged between the pair of outer surface glass sheets, a reinforcing member is disposed on a peripheral portion of the gap between the glass plates and on an edge side of the glass plates relative to the spacer; The reinforcing member is made of a fiber-reinforced plastic having an elastic strength equal to or greater than that of the glass plate, A space is formed between an outer periphery of the intermediate glass plate and the reinforcing member.

2. the spacer is disposed on the inner peripheral side relative to an edge of the glass plate, The insulating glass according to claim 1 , wherein the reinforcing member comprises a first reinforcing member fixed to the glass plate and a second reinforcing member fixed to the first reinforcing member.

3. The insulating glass according to claim 2 , wherein the first reinforcing member has an L-shape or a T-shape.

4. The glass plate is a laminated glass having a film sandwiched therebetween, the spacer is disposed on the periphery of the gap between the glass plates; The insulating glass according to any one of claims 1 to 3, wherein the film is disposed on a peripheral portion of the glass plate.

5. The present invention comprises a frame body and a shoji screen provided on the frame body, The shoji screen has glass plates including a pair of outer surface glass plates arranged on the outer surface and an intermediate glass plate arranged between the pair of outer surface glass plates, and a hollow layer is formed in the gap between the glass plates, The outer surface glass plates are spaced apart via a spacer, a reinforcing member is disposed on a peripheral portion of the gap between the outer surface glass sheets and on an edge side of the outer surface glass sheets relative to the spacer; A space is formed between the outer periphery of the intermediate glass plate and the reinforcing member, The reinforcing member is made of fiber-reinforced plastic having elastic strength equal to or greater than that of the glass plate.

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