JP2002037646A - Multiple glass - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multiple glass, which makes the closed space small without changing the thickness of a plate glass. SOLUTION: In the multiple glass 1 which forms the closed space by making the spacer material 6 intervening around the inner periphery parts of the plate glasses 2 and 2, which are characteristically set apart by placing the gel material 5 between them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a structure of a double glazing.

[0002]

2. Description of the Related Art In recent years, the use rate of double glazing has been increasing from the viewpoint of energy saving and soundproofing. Among such double glazings, those having a small total thickness, for example, a thickness of 3 m
m, a glass plate 32 having a thickness of 6 mm, an air layer having a thickness of 6 mm, and a glass plate 32 having a thickness of 3 mm (FIG. 5).
(A)) is 12 mm in total thickness. In the case of a double-glazed glass having a large total thickness, for example, a fire-resistant double-glazed glass 31, a meshed flat glass 33 having a thickness of 6.8 mm, an air layer having a thickness of 12 mm, and a flat glass 32 having a thickness of 5 mm. (See FIG. 5B), and the total thickness is about 24.
mm. In FIG. 5, 34 is a net, and 35 is a spacer.

[0003] The groove width of the sash to which these double glazings are attached is required to be 20 to 28 mm, and cannot be mounted on an existing sash as it is. That is, the groove width of the existing sash is usually about 9 mm, and the above-mentioned double glazing cannot be attached alone. Therefore, when using an existing sash, attach the double glazing to the attachment,
This attachment had to be attached to the sash.

FIG. 6 is a cross-sectional view of a conventional example in which an attachment is used to attach a double-glazing unit to a sash. FIG. 6A is an example in which the double-layer glass 31 is made of a normal sheet glass, and FIG. Is an example in which one sheet glass of the multi-layer glass 31 is a sheet glass with mesh. In FIG.
11 is an attachment, 12 is a sash frame.

[0005]

However, if an attachment is used, the conventional double glazing can be attached to an existing sash, but as shown in FIG. Since the layered glass 31 hits the screen door 13 of the existing sash, there is a problem that the screen door cannot be attached. In FIG. 7, reference numeral 14 denotes a sash lower frame.

Further, in order to reduce the total thickness of the double-glazed glass, it is conceivable to reduce the thickness of the closed space (air layer) of the double-glazed glass. However, there is a problem that heat contact is caused, heat insulation is reduced, and glass flaws are generated.

[0007]

As described above, in order to attach the double glazing to an existing sash, it is desirable to reduce the thickness of the double glazing. It has been desired to develop a double-glazed glass which has a reduced thickness of the layer and does not have the above-mentioned problems (reduced heat insulation, generation of glass flaws).

[0008]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and a closed space is provided between two glass sheets at a peripheral portion between two glass sheets arranged substantially in parallel. In a double glazing having a spacer member interposed therebetween so as to be formed, a gel intermediate material is partially disposed between the two glass sheets, and the intermediate material separates the two glass sheets. The present invention provides a double glazing characterized by being placed.

With such a double-glazing unit, the thickness of the closed space (air layer) can be reduced, and there can be no problems such as a decrease in heat insulation and generation of glass flaws. In addition, although dry air is normally enclosed in the closed space, another inert gas (for example, dry nitrogen gas) may be enclosed.

In the present invention, the intermediate material is Asker C
It is preferably a gel intermediate material having a hardness of 0.1 to 30. Such a gel can be easily deformed, and can prevent the contact between two adjacent glass sheets, so that the above-mentioned problem can be further achieved.

[0011] In the present invention, when the intermediate material is disposed in a double glazing, the thickness of the intermediate material is 3 times the original thickness.
Preferably, it is compressed to 0-95%. In the case of a double-glazed glass having such a configuration, the above-described problem can be further achieved because the intermediate material has a property of following the behavior of the air layer due to a temperature change. When the intermediate material is disposed in the double-glazed glass, it can exhibit functions such as maintaining heat insulation properties and preventing glass flaws even if it is not compressed at all.

In the present invention, the intermediate material is preferably a gel-like intermediate material containing a copolymer of ethylene and styrene as a main component.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, a piece-like or long gel-like intermediate material such as a columnar shape or a rectangular parallelepiped shape is partially disposed between two adjacent glass sheets of a double-glazed glass, This suppresses the contact between the sheet glasses. Thereby, even if the interval between two adjacent plate glasses is small, the effect of preventing a decrease in heat insulation and the generation of glass flaws is exerted.

The intermediate material needs to be a gel-like substance. A gel, as generally understood, refers to a sol (colloidal solution) solidified in a jelly state. Such materials generally have lower hardness than rubber and tend to deform, but do not cause permanent deformation. Further, in general, there are many transparent or translucent substances, and even when used as an intermediate material of a double glazing, there is little deterioration in design.

If the intermediate material is a gel-like substance, the above-mentioned effects can be exhibited, but it is preferable that the intermediate material has an Asker C hardness of 0.1.
The gel of 1 to 30 is more preferably 1 in Asker C hardness.
0-20 gels are suitable for the above purpose. Asker C
For gels with a hardness of more than 30, ordinary polymer materials (for example,
(Polyvinyl chloride, polyamide, etc.) and can only function as a general spacer.
A gel having a hardness of less than 0.1 is not enough to suppress the contact between the sheet glasses.

The gel-like substance as the intermediate material is more preferably a gel comprising a copolymer of ethylene and styrene as a main component and adding oil thereto. The oil is
For example, paraffinic oil is 98% by mass, and naphthenic oil is 2% by mass. Such gels are made only of substantially pure hydrocarbons and have human and animal harmless properties. As such a gel, for example, Cosmo Gel manufactured by Cosmo Keiki Co., Ltd. can be used.

Further, such a gel has a good elongation property because the copolymer has a long straight chain, and also has an excellent low-temperature property because a paraffinic oil is used. Even when cooled to about −40 ° C., the elongation characteristics and the shock absorption characteristics hardly change. The long molecules in the gel are not cross-linked and are entangled, so they are basically thermoplastic, and various processing methods such as injection molding, extrusion molding, calender molding and blow molding can be employed.

The operation when a gel-like substance is used as the intermediate material will be described below. The first effect is a function of preventing direct contact between glasses by the gel-like substance used in the present invention. That is, the gel-like substance functions as a spacer and hinders generation of scratches due to direct contact between the glasses.

FIGS. 4A and 4B are conceptual diagrams showing the relationship between the intermediate material and the sheet glass. FIG. 4A shows a state in which the intermediate material is arranged on one sheet glass of the multi-layer glass, and FIG. It is in a state of being combined glass. In the state of (a), when the intermediate material 5 is arranged on one of the glass sheets 2 and the other glass sheets 2 are combined and the both glass sheets are kept at a predetermined distance, the intermediate material 5 is deformed and its thickness is reduced. However, the thickness does not become zero, and the function as a spacer is not lost.

The second function is to follow the gel-like substance used in the present invention. The air layer expands or contracts in response to changes in summer and winter temperatures. Along with this,
Although the distance between the glasses also changes, the gel-like substance is easily deformed and deforms following the distance between the glasses, so that it is difficult for the double-glazed glass to generate perspective distortion. In particular, if the gel material has an appropriate hardness (Asker C hardness of 0.1 to 30), the following function is further improved.

The third effect is the tackiness and adhesion of the gel substance used in the present invention. The gel-like substance itself has tackiness and can be fixed to glass without using other means. Further, in order to secure the fixing more securely, it is possible to use together with an adhesive. As the adhesive, for example, a non-curable α-cyanoacrylate-based adhesive can be used, and can be bonded to metal, glass, or the like.

The thickness of the intermediate material 5 which is a gel substance is equal to the thickness of the air layer (the distance between the inner surfaces of the glass sheets 2 and 2).
Smaller configurations may be employed. In this case, the intermediate material 5
Is adhered or adhered to only one side of the glass sheet 2, and comes into contact with the opposite side of the glass sheet 2 when the glass sheets 2 and 2 are deformed and the thickness of the air layer is reduced.

A fourth effect is the transparency or translucency of the gel substance used in the present invention. Many gel-like substances are colorless and transparent or translucent, and even if they are arranged in a double glazing, they hardly hinder the visual field. It can also be colored and transparent depending on the application (black, white, brown,
Red, yellow, etc.), whereby design properties can be imparted.

FIGS. 2A and 2B are partial cross-sectional views of the double-glazed glass of the present invention. FIG. 2A is an example of a normal glass sheet, and FIG. 2B is an example of a single-sheet glass sheet. This corresponds to FIGS. 5 (a) and 5 (b), which are multilayer glass. Between the two glass sheets 2, 2 or between the glass sheet 2 and the meshed glass sheet 3
And the intermediate material 5 is arranged between them to constitute the double-glazed glass 1. 4 is a net.

The intermediate member 5 needs to be partially disposed between the two glass sheets in this way. This is because, in the configuration arranged on the entire surface between the two glass sheets, the heat insulating performance and the soundproofing performance, which are the characteristics of the double-glazed glass, cannot be exhibited.

The arrangement of the intermediate member 5 in the plane direction in the double glazing 1 is such that when the intermediate member 5 is in the shape of a piece, it is arranged at one place in the center of the double glazing 1 (see FIG. 3A). Or at a plurality of locations at predetermined intervals (FIG. 3
(B)). The size of the intermediate member 5 in the plane direction can also function if the diameter is 1 to 20 mm. The shape of the intermediate member 5 in the plane direction may be not only a circle but also various shapes such as a rectangle, a triangle, a star, and the like.

When the intermediate member 5 in the double-glazed glass 1 is arranged in the plane direction, if the intermediate member 5 is long,
(C)), horizontal (see FIG. 3 (d)) or oblique (see FIG.
(See (e)) may be arranged at equal intervals, or may be arranged randomly. In the case of a long shape, the size of the intermediate material 5 in the plane direction can be, for example, about 1 mm × 500 mm. Further, a short material (see FIG. 3 (f)) may be arranged.

[0028]

FIG. 1 is a partially cutaway perspective view showing the structure of a double glazing 1 according to the present invention. Float glass having a length and width of 350 mm × 500 mm and a thickness of 3 mm was used for each of the plate glasses 2 and 2. As the spacer member 6, a molded body made of butyl rubber having a rectangular cross section was used. A desiccant is mixed in the spacer member 6.

The outer peripheral edge of the double glazing 1 is sealed by a spacer member 6. The thickness of the air layer (the distance between the inner surfaces of the glass sheets 2 and 2) is designed to be 2 mm.
Therefore, the spacer member 6 having a thickness of 2 mm was used. With the above configuration, the total thickness of the double glazing 1 is 8 m.
m.

As the intermediate material 5, a gel containing a copolymer of ethylene and styrene as a main component and 98% by mass of a paraffinic oil and 2% by mass of a naphthenic oil as an oil was used. Product name: Cosmo Keiki Co., Ltd.
Cosmogel, Asker C hardness: 4). The arrangement of the intermediate member 5 in the planar direction in the double glazing 1 was such that it was arranged at one place in the center of the double glazing 1 (see FIG. 2A). The size of the intermediate material 5 before being disposed on the double-glazed glass 1 is 3 at the outer periphery.
A column having a thickness of 2.7 mm and a thickness of 2.7 mm was used.

After completion of the double glazing 1, the intermediate material 5
Is deformed to about 75% of the original thickness of 2.7 mm (2
mm). In this state, the thickness of the portion where the intermediate material 5 of the double-glazed glass 1 was disposed was measured from the outside, but no difference was recognized from the thickness of the other portions of the double-glazed glass 1.

The room temperature when the double glazing 1 was manufactured was 20
° C. This double-glazed glass 1 was placed in a constant temperature bath, and the perspective distortion was observed by changing the temperature to 60 ° C. at a high temperature and −20 ° C. at a low temperature. However, no sense of incongruity in transparency caused by local deformation of the sheet glass was observed. Was.

For convenience of explanation, the present embodiment has been described with reference to a double glazing composed of two glass sheets. However, the same applies to a double glazing composed of three or more glass sheets. The effect is obtained.

[0034]

According to the present invention, the thickness of the closed space (air layer) of the double glazing can be reduced, and the total thickness of the double glazing can be reduced. This allows the double glazing to be attached to an existing sash. Also, there is no interference with existing screen doors and the like.

Further, the intermediate body follows the change in the interval between the glasses due to the expansion or contraction of the air in the closed space according to the change in the air temperature, and is deformed, so that it is difficult for the double glazing to generate perspective distortion.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a double glazing of the present invention.

FIG. 2 is a partial cross-sectional view of the double glazing of the present invention;
(A) is an example made of normal sheet glass, and (b) is an example made of one sheet of meshed sheet glass.

3A and 3B are front views of the double-glazed glass of the present invention, wherein FIG. 3A shows an example in which a cylindrical intermediate material is arranged in the center, FIG. 3B shows an example in which a cylindrical intermediate material is scattered, (C) is an example in which a plurality of long intermediate members are arranged vertically, (d) is an example in which a plurality of long intermediate members are arranged horizontally, and (e) is a plurality of oblong intermediate members obliquely. (F) is an example in which a plurality of rectangular intermediate members are arranged obliquely.

4A and 4B are conceptual diagrams showing a relationship between an intermediate material and a sheet glass, wherein FIG. 4A shows a state in which an intermediate material is arranged on one sheet glass of a double-layer glass, and FIG. This is a state in which a layer glass is formed.

5A and 5B are cross-sectional views of a conventional double glazing, in which FIG. 5A is an example made of ordinary plate glass, and FIG.

FIGS. 6A and 6B are cross-sectional views of a conventional example in which a double glazing is attached to an attachment. FIG. 6A is an example of a normal sheet glass, and FIG. 6B is an example of a single sheet of a meshed sheet glass.

FIG. 7 is a cross-sectional view showing a state in which a conventional double-glazed glass (one sheet of which is made of netted glass) is attached to an attachment and is attached to a sash, and shows how the sash and the screen door are engaged.

[Explanation of symbols]

 1: double-glazed glass 2: flat glass 3: net-plated glass 4: net 5: intermediate material 6: spacer member 11: attachment 12: sash frame 13: screen door 14: sash lower frame 31: double-glazed glass 32: flat glass 33: net Entering glass 34: Net 35: Spacer

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yuichi Usui 1-1, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Inside Asahi Glass Co., Ltd. (72) Inventor Teruo Matsuyama 1-1-1, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Asahi Glass F term (reference) 4G061 AA11 AA20 BA01 CB02 CB06 CB16 CD02 CD22 CD24

Claims (4)

[Claims] 1. A double-glazed glass comprising a spacer member interposed at a peripheral portion between two glass sheets disposed substantially in parallel so as to form a sealed space between the two glass sheets. A double-glazed glass characterized in that a gel-like intermediate material is partially disposed between two sheet glasses, and the two sheet glasses are separated by the intermediate material. 2. The intermediate material has an Asker C hardness of 0.1-3.
The double-glazed glass according to claim 1, which is a gel-like intermediate material. 3. The intermediate material according to claim 1, wherein the intermediate material is compressed to a thickness of 30 to 95% of the original thickness when disposed in the double-glazing. Double glazing. 4. The double glazing according to claim 1, wherein the intermediate material is a gel intermediate material containing a copolymer of ethylene and styrene as a main component.