JPH11117632A - Double glazing glass and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent deformation until a spacer is adhered and hardened and to simplify the production process by enabling double glazing glass to be stacked flat even during a curing period by burying plural spacer pieces in a thermoplastic spacer. SOLUTION: A thermoplastic resin spacer 4 as the primary seal is arranged in the whole periphery of one side glass plate 2 of a double glazing glass 1 and softened by heating. Secondly, an opening part of a spacer piece 3 having a U-shaped section is buried in the resin spacer 4 from the inner peripheral surface side of the resin spacer 4. Subsequently, two glass plates 2, 2' and the resin spacer 4 are closely adhered to each other, and dried and hardened. Then, an aluminium-made spacer of the peripheral edge part of the double glazing glass plate is replaced by the resin spacer 4 to secure heat insulation in the vicinity of the spacer 4. Accordingly, deformation until the resin spacer 4 is adhered and hardened can be easily prevented. Thus, stack storage is enabled, and after hardening of the resin spacer 4, deformation caused by loading and placing at the time of transport can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single-sealed double-glazed glass with a worm edge and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, glass plates have been frequently used for exterior materials of buildings and the like for the purpose of lighting and design effects, but in recent years, in particular, the use of double-glazing has increased for the purpose of energy saving effects. There is a tendency.

A double-glazing unit used for an opening of a window or a top light of a building or the like is usually made of an aluminum spacer containing a desiccant and disposed between two edges of two glass plates facing each other. And the contact surface between the spacer and the glass is bonded (primary seal) with an adhesive, and the periphery thereof is hermetically sealed (secondary seal) with an elastic sealing material. The one in which the air between two glass plates is kept in a dry state is general and well known.

[0004] In the case of using these aluminum spacers, not only work such as cutting, processing, assembling the spacer and bonding to the glass are required according to the size of the glass, but also the thermal conductivity of aluminum as a material of the spacer. Because of this, the double glazing using the spacer has a problem that the heat insulation performance around the aluminum spacer in the peripheral part is slightly inferior to other parts. In recent years, in order to improve the heat insulating performance of the glass, production of a double-glazed glass using a resin spacer called a so-called warm edge double-glazed glass that does not use a metal spacer such as aluminum has been attempted in recent years.

For example, in Japanese Patent Application Laid-Open No. Hei 8-91879, a rubber spacer having a flexible, self-adhesive, desiccant dispersedly mixed therein is arranged around a plurality of glass plates. In a double glazing assembled by providing a hollow layer between glasses, a double glazing in which a nonwoven fabric or a woven fabric carrying a desiccant is attached to part or all of the surface of the spacer in contact with the hollow layer is disclosed. I have.

Japanese Unexamined Patent Publication No. Hei 8-143440 discloses a double-layer glass in which at least two glass plates are opposed to each other at a predetermined interval via a spacer on a peripheral portion thereof so that a hollow layer is formed. The spacer has a structure in which an inner layer made of a thermoplastic resin material containing a moisture absorbing material, an intermediate layer made of a film, and an outer layer made of a thermoplastic resin material are laminated in this order from the hollow layer side. A double glazing is disclosed.

Further, Japanese Patent Application Laid-Open No. Hei 7-223848 discloses that at least two glass plates are separated from each other so that an intermediate layer is formed with a spacer interposed therebetween, and the peripheral portion is sealed. In the double-glazed glass, the spacer includes at least a low moisture-permeable layer, a moisture-permeable resin material layer having a desiccant, and an adhesive layer for sealing a peripheral portion, and the low-permeable layer is a moisture-permeable resin material layer. A multi-layer glass that is interposed between external air outside the outer periphery of the multi-layer glass and at least a part of the moisture-permeable resin material layer communicates with an intermediate layer is disclosed.

[0008]

Problems to be Solved by the Invention Japanese Patent Application Laid-Open No. Hei 8-91879
JP-A-8-143440, JP-A-7-22384
No. 8 does not use aluminum spacers, so there is no need to assemble aluminum spacers.However, since the resin spacers do not have the rigidity of aluminum, deformation occurs before the resin spacers harden. There is a problem in that it is likely to occur, flat stacking cannot be performed during the curing period, and deformation occurs due to an increase in the number of sheets even in the case of vertical placement.

[0009]

SUMMARY OF THE INVENTION The present invention provides the above-mentioned problems,
In other words, it is possible to prevent deformation of the thermoplastic resin spacer until the adhesive is hardened, to enable the stacking of multiple pieces of double-glazed glass even during the curing period, without impairing the heat insulating performance and transparency of the double-glazed glass, For the purpose of simplification of the production process and cost reduction, in the case of a double glazing in which a thermoplastic resin spacer having a sealing property with each glass plate is provided in a peripheral edge region of two opposing glass plates, A plurality of spacer pieces are embedded and arranged in the thermoplastic spacer of the layered glass, or, as the spacer pieces, have a spacing function between two opposing glass plates, and are embedded and embedded in the thermoplastic resin spacer. The length of the spacer piece is a depth that does not penetrate the thermoplastic resin spacer, and the function of the thermoplastic resin spacer can be maintained. Or the spacer piece has a shape having an opening such as U, T, I, L, X, T, E, V, or W-shaped, and is made of a hard resin or metal; or Further, in the method of manufacturing a double-glazed glass, wherein the spacer piece is provided in a corner portion and / or a central region of a side of the glass plate, a thermoplastic resin spacer as a primary seal is provided on one side of the double-glazed glass. It is arranged around the entire periphery of the plate and heat-softened, and the spacer piece is embedded in the resin spacer in a direction parallel to the glass plate surface from the opening side from the inner peripheral surface side or the outer peripheral surface side of the thermoplastic resin spacer. In the method for producing a double-glazed glass in which two glass plates and a thermoplastic resin spacer are adhered, or in the method for producing a double-glazed glass, a thermoplastic resin as a primary seal is used. A spacer is placed on a glass plate, a desired number of the spacer pieces are bonded to the bonding positions of the thermoplastic resin spacers of the glass plate with a double-sided adhesive tape, and the thermoplastic resin spacers and the spacer pieces are placed so as to overlap. The present invention also provides a method for producing a double-glazed glass in which spacer pieces are buried without gaps in a thermoplastic resin spacer after heating and softening, and two glass plates are bonded to the thermoplastic resin spacer.

[0010]

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a thermoplastic resin spacer 4 made of butyl rubber or the like instead of the aluminum spacer normally used in the peripheral edge regions of the two glass plates 2 and 2 facing each other.
A double-glazed glass 1 having a thermoplastic resin spacer 4 serving also as a primary sealing material provided on the peripheral edges of the glass plates 2 and 2 and having a spacer piece having a shape as shown in FIG. The small pieces of 3, 3, ... are provided.

Since the spacer piece 3 is made of metal such as aluminum or aluminum alloy and has rigidity, the spacer piece 3 has a function of maintaining a space between two opposing glass plates, and can maintain the function and appearance of the thermoplastic spacer. It is a small piece that was extruded from aluminum that was provided intermittently instead of being continuously provided on the entire circumference of the double-glazed glass as in the past, but it may be made of hard synthetic resin, It may be metal.

[0012] Even before the thermoplastic resin spacer 4 is cured by the spacer pieces 3, it can be horizontally stacked and does not deform. The spacer piece 3
Is a U-shape or an H-shape, for example, and is bonded to the glass plates 1 and 1 with double-sided adhesive tapes 6 and 6 made of butyl rubber or the like on both sides thereof, or a heat seal as a primary seal portion. It is embedded at a key position of the mounting position of the plastic resin spacer 4.

When the spacer piece 3 is embedded in the thermoplastic resin spacer 4 of the primary seal portion in a direction parallel to the glass plate, the shape of the spacer piece 3 may be a U-shape, an E-shape, an H-shape (H-shape). ), An I-shape is used, and the embedding into the primary sealing material is performed in a direction in which the front end of the U-shape opening is pushed.

The shape of the spacer pieces 3 having other shapes is limited by the manufacturing method, and will be described together with the manufacturing method. The method for producing the above-mentioned double-glazed glass 1 will be described below.

As shown in FIG. 1, a thermoplastic resin spacer 4 as a primary seal is disposed around the entire periphery of the glass plate 2 on one side of the multilayer glass 1 and is softened by heating. The U-shaped spacer piece 3 is embedded in the resin spacer 4 with the opening of the U-shaped spacer piece 3 facing outward from the surface side, and the two glass plates 2, 2 'and the thermoplastic resin spacer 4 are bonded and dried and cured. I made it.

Alternatively, as shown in FIG. 2, the resin spacer 4 is formed such that the opening of the U-shaped or E-shaped spacer piece 3 faces inward from the outer peripheral surface side of the thermoplastic resin spacer 4.
The two glass plates 2 and 2 ′ were bonded to the thermoplastic resin spacer 4.

Alternatively, as shown in FIGS. 3 and 4,
The desired number of the spacer pieces 3 are previously bonded to the position of the thermoplastic resin spacer 4 as the primary seal on the glass plate 2 with a double-sided adhesive tape such as butyl rubber, and the thermoplastic resin spacers 4 are provided in an overlapping manner. Then, the spacer pieces 3 are embedded in the thermoplastic resin spacers 4, and the two glass plates 2, 2 ′ are bonded to the thermoplastic resin spacers 4.

The thermoplastic resin spacer 4 is preferably made of butyl rubber or the like mixed with a desiccant or the like, and may be polyisobutylene or the like in addition to butyl rubber. The cross-sectional shape of the spacer piece 3 is, as shown in FIG.
Is preferred, but spacers such as V-shaped and I-shaped can also be used.

The spacers 3 may be embedded at the corners and / or center areas of the glass plate.
It is desirable to provide at least one on each side. For example, FIG.
(A) shows an example in which spacer pieces 3 are provided at both the corners of the thermoplastic resin spacer 4 and the central region of each side.

Alternatively, as shown in FIG. 5B, an L-shaped spacer piece 3 ′ may be provided at a corner portion on the inner peripheral surface side of the thermoplastic resin spacer 4 of the multilayer glass 1. Further, in FIG. 5 (c), an L-shaped spacer piece 3 ″ is also provided outside the corner of the thermoplastic resin spacer 4 of the double-glazed glass 1, and the spacer piece 3 is further provided at the center of the side if necessary. Shows what was provided.

Further, if one side of the glass plates 2 and 2 'constituting the double-glazed glass 1 is made of a netted glass or a lined glass, scattering at the time of breakage is prevented, and furthermore, the glass on the outdoor side of the double-glazed glass 1 is prevented. If the plate 2 is made of heat ray reflective glass, the energy saving effect will be further enhanced.

Although the preferred embodiment has been described above, the present invention is not limited to this, and various applications can be considered. A glass plate 2 constituting a double-glazed glass 1,
2 'may be a raw sheet glass, a semi-tempered glass, a tempered glass sheet, a netted glass, a lined glass, or a laminated glass sheet in which the above glass sheets are combined and bonded by PVB or EVA, or scattered on the glass sheet surface. The thing to which the prevention film was stuck is also included.

Further, a glass plate surface coated with a heat ray reflection film or an ultraviolet reflection film or the like by coating or vacuum deposition, or a glass tissue made of glass fiber in a tissue shape, The dry air layer between the glass plates may be one containing a special gas, one containing a lattice, or one containing a louver.

Further, when a metal tape such as stainless steel having a width of about the thickness of the double-glazed glass 1 is adhered to the entire periphery of the end face of the double-glazed glass 1, the sealing property is further improved, which is effective.

[0025]

According to the present invention, a resin spacer is used in place of the aluminum spacer provided around the entire peripheral edge of the double-glazed glass plate, so that the heat insulating performance near the spacer is not impaired. Since a small piece of spacer made of aluminum or the like with a substantially U-shaped cross section is partially provided at a key point on the resin spacer, deformation until the thermoplastic spacer is hardened by adhesion can be prevented by simple means, and it can be stacked and stored. This has been made possible, and even after curing of the resin spacer, the resin spacer has been easily deformed without being deformed by loading or placing during transportation.

Further, since the spacer piece has a simple shape such as a U-shape, it can be easily formed by extrusion or the like. If the aluminum spacer piece is inserted into the resin spacer at the time of softening, the insertion work is simple. Automation is possible, low-cost double glazing can be realized, and the energy saving effect is high.

[Brief description of the drawings]

FIGS. 1A and 1B are a front view and a partial cross-sectional view, respectively, of an embodiment of a double glazing of the present invention.

FIGS. 2A and 2B are a front view and a partial sectional view, respectively, of another embodiment of the present invention.

FIGS. 3A and 3B are a front view and a partial cross-sectional view taken along line AA of another embodiment of the present invention.

FIGS. 4A and 4B are a front view and a partial cross-sectional view taken along line BB of another embodiment of the present invention, respectively.

FIGS. 5 (a), (b), (c), and (d) are front views each showing an embodiment of the double-glazed glass of the present invention.

FIG. 6 is a perspective view of various spacer pieces of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Double glazing 2, 2 'Glass plate 3, 3', 3 "Spacer piece 4 Thermoplastic resin spacer (primary seal)

Claims (6)

[Claims] 1. A double glazing having a thermoplastic resin spacer having a sealing property with each glass plate in a peripheral edge region of two opposing glass plates, wherein the thermoplastic spacer of the double glazing is a spacer. A double glazing comprising a plurality of pieces embedded therein. 2. The spacer piece has a spacing function between two opposing glass plates, is embedded in the thermoplastic resin spacer, and the length of the embedded spacer piece passes through the thermoplastic resin spacer. 2. The double-glazed glass according to claim 1, wherein the double-glazed glass has a depth not to be changed and can maintain the function of the thermoplastic resin spacer. 3. The spacer piece has a sectional shape of U,
3. The simple double-glazed glass according to claim 1, wherein the glass has a shape having openings such as I, L, X, T, E, V, and W shapes and is made of a hard resin or metal. 4. The double-glazed glass according to claim 1, wherein said spacer pieces are provided at a corner portion and / or a center region of a side of the glass plate. 5. In the method for producing a double-glazed glass, a thermoplastic resin spacer as a primary seal is disposed around the entire periphery of a glass plate on one side of the double-glazed glass and is softened by heating. The spacer pieces are embedded in the resin spacer in a direction parallel to the glass plate surface from the opening side from the surface side or the outer peripheral surface side, and the two glass plates and the thermoplastic resin spacer are bonded. Method for producing double-glazed glass. 6. In the method for producing a double-glazed glass, a thermoplastic resin spacer as a primary seal is disposed on a glass plate, and a desired number of the spacer pieces are bonded to the glass plate with a double-sided adhesive tape. The thermoplastic resin spacer and the spacer piece are placed so as to overlap with each other, and after heating and softening, the spacer piece is embedded in the thermoplastic resin spacer without gaps, and two glass plates and a thermoplastic resin spacer are attached. And a method for producing a double-glazed glass.