JPH084434A - Double-layered glass - Google Patents

Abstract

PURPOSE:To prevent the movement of seal layers even in the case of receiving fluctuant external force. CONSTITUTION:Plural plate glass 1, 2 are laminated in the state of being spaced in the thickness direction by a spacer 3 over the whole periphery, and seal layers 4, 5 are interposed between the plate glass 1, 2 and the spacer 3 so as to form a closed space A between plural plate glass 1, 2. In such a double- layered glass, the spacer 3 is formed of an elastic body moderating external force applied to the thickness direction of the plate glass 1, 2, or the seal layer is formed of sealant with reinforcing core material embedded in sealing material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention laminates a plurality of plate glasses at intervals in the thickness direction via spacers, and a seal layer is interposed between the plate glasses and the spacers. And a multi-layer glass in which a closed space is formed between the plurality of plate glasses.

[0002]

2. Description of the Related Art Conventionally, in a multi-layer glass, the spacers are made of a hard and hard-to-deform material in order to keep the distance between the plate glasses constant.

[0003]

By the way, in general, a sealing material having good airtightness, such as butyl rubber, is generally used for the sealing layer so as to prevent outside air containing water vapor and the like from entering the sealed space. Many of these sealing materials are easily plastically deformed. However, if the spacer is formed of a hard material, when a variable external force is applied to the double glazing, the flat glass constituting the double glazing is flexibly deformed, and the spacer and the flat glass are Since the distance between them (hereinafter simply referred to as a gap) partially expands or narrows, the seal material that constitutes the seal layer interposed between the spacer and the plate glass is extruded from the gap. Then, there was a phenomenon that it gradually moved to the closed space side.

That is, as shown in FIG. 5, the plate glass is
When an external force such as wind pressure is applied, the gap between the plate glass and the spacer on the side where the external force is applied narrows, and the sealing material receives a pressing force and is deformed in the direction of extrusion (Fig. )reference). Next, the original clearance is restored by the fluctuation of the external force, but the sealing material that has been affected by the previous deformation to move to the closed space side is difficult to return to the original position and is pulled in the thickness direction. The adhesive force with the plate glass and the spacer is reduced by the force applied (see FIG. 5B). When such an action is repeatedly received, the sealing material between the plate glass and the spacer further moves to the closed space side (see FIG. 5C), and when it becomes too small, the sealing material becomes In some cases, the space between the spacer and the plate glass may be torn off to form a space between the spacer and the plate glass in which a seal material does not intervene (see FIG. 5D).

In the above phenomenon, when an external force is applied intermittently, even if the pulsation is small, the above phenomenon progresses and the sealing material moves to the closed space depending on the long-term use. The sealing force becomes weak, the airtightness of the closed space is easily impaired, moisture easily enters the closed space, and the inner surface of the double glazing is easily fogged due to the temperature difference between both sides of the double glazing. So, for example,
It cannot be used in cases where it is subject to wind pressure vibrations such as on window glass of trains, and it is inevitably of low commercial value. Even if it is subject to fluctuating external force, the sealing performance deteriorates. It was desired to have double glazing that is difficult to do.

Therefore, in view of the above situation, it is an object of the present invention to provide a double glazing in which the sealing layer does not easily move even if a fluctuating external force is applied.

[0007]

The first characteristic constitution for achieving the above object is that the spacer is made of an elastic body for relaxing an external force applied in the thickness direction of the plate glass. A second characteristic configuration is that the seal layer is formed of a seal material in which a reinforcing core material is embedded in a sealing material.

[0008]

That is, in the first characteristic configuration, the spacer is made of an elastic body so as to absorb the external force applied in the thickness direction of the glass sheet, so that the elastic body absorbs the external force and seals. The external force is less likely to be transmitted to the layer, and therefore, the phenomenon that the sealing layer is plastically deformed and moves to the closed space side can be suppressed. Further, in the second characteristic configuration, the sealing material is formed by embedding a reinforcing core material in the sealing material, so that even if the sealing material tries to plastically deform, the sealing material Is suppressed from moving due to the holding force of the reinforcing core material, and the sealing layer as a whole is less likely to move to the closed space side.

[0009]

As a result, the sealing layer between the plate glass and the spacer is weakened and the airtightness is less likely to occur. It has become possible to provide a double glazing having a high commercial value, which can be used even in a place where it is continuously exposed, and which is hard to be fogged in a closed space even during long-term use.

If the elastic body has a C-ring shape having an opening on the closed space side in a sectional view, the movement of the seal layer is suppressed while keeping the distance between the plate glasses constant. If the elastic body is formed of a spring material, the effect can be maintained for a long period of time.

Further, if the sealing material is butyl rubber, there is an advantage that the moisture-proof effect of the sealing layer is large, and the reinforcing core material may include at least one of cloth, net and linear body. If it is difficult to expand and contract, deformation and movement of the seal layer can be effectively suppressed.

If the surface of the spacer facing the plate glass is formed flat, and the sealing layer is a sheet-shaped butyl rubber in which a cloth is embedded over the entire width,
The sealing layer is in contact with the spacer over a wide area to obtain a large adhesive force and a high sealing property, and even when an external force is applied, the sealing material is deformed and moved to the closed space side in a large area. The effect of suppressing the movement of the seal layer can be increased.

[0013]

Embodiments will be described below with reference to the drawings. [First Embodiment] As shown in FIGS. 1 and 2, in the double glazing of the present invention, two plate glasses 1 and 2 are arranged in parallel with a spacer 3 interposed therebetween, and the spacer 3 and the both plate glasses 1 are arranged. , 2, the first sealing member 4 made of polyisobutylene is interposed, and between the plate glass 1 and the plate glass 2,
A second sealing material 5 made of a silicon sealing material is interposed outside the first sealing material 4 to form a closed space A between the two plate glasses 1 and 2, and thus a sash frame built in a structure. A double glazing which is fitted in and fixed to 7 is constructed.

The spacer 3 is made of aluminum and is formed in a ring shape around the entire periphery of the plate glass 1, and has a constriction 8 on both lateral surfaces (respective surfaces facing the plate glasses 1 and 2) in a sectional view. And a C-ring shape that forms an opening 9 over the entire circumference on the side of the closed space A. As a result, the first seal member 4 is attached to the constriction 8.
The structure is such that it is easy to hold, and the external force applied in the thickness direction of the double glazing can be relaxed.

[Second Embodiment] As shown in FIG. 3, the spacer 3 in the previous embodiment is formed with flat planes 18 on both lateral surfaces in a cross-sectional view and an opening 9 is formed on the closed space A side. The ring-shaped first sealing material 4 is formed from polyisobutylene having a cloth-like reinforcing core material 10 embedded therein. Thus, the structure is such that the first sealing material 4 can be easily held on the flat surface 18, and the structure is less likely to deform and move even when an external force is applied in the thickness direction of the double glazing. A desiccant is put in the space inside the spacer 3 so that the humidity in the closed space can be kept low.

[Other Embodiment] Another embodiment will be described below.
The inner surface side of the first seal material 4 in the previous embodiment may be further provided with an inner surface seal layer, as long as an inner surface seal layer made of a material such as a silicon sealing material that is not easily plastically deformed after bonding is provided. Therefore, it is preferable that the first seal member 4 can prevent deformation and movement of the first seal member 4 toward the closed space while maintaining high moisture resistance.

The spacer 3 is not necessarily made of aluminum and may be made of resin. In such a case, compared to the previous embodiment, long-term durability under a large external force is reduced, but a small external force can be accommodated. When it suffices, the seal member can be prevented from being deformed and moved, and can be made lightweight. In addition, if the spacer 3 is formed of a spring material, even if a large external force is applied, it is easy to restore the distance between the plate glasses to a certain size, and a large external force is continuously applied to the double glazing. Easy to adapt to. The shape is not limited to that of the above-described embodiment, and may have a quadrangular cross section, and as shown in FIG. 4, a lid portion 19 that slidably closes the opening may be provided. If configured, it is possible to introduce a desiccant S into the internal space of the spacer to remove moisture in the closed space and make the inner surface of the closed space less likely to fog, which is preferable. In the examples, the first and second sealing materials are referred to as a sealing layer, and the sealing layer provided on the inner surface of the sealing layer and on the closed space side is particularly referred to as an inner surface sealing layer.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a mounting structure for double glazing of the present invention.

FIG. 2 is a vertical cross-sectional view of the main part of the double glazing of the present invention.

FIG. 3 is a vertical cross-sectional view of the main part of the double-glazing unit in another embodiment.

FIG. 4 is a vertical cross-sectional view of the main part of the double-glazing unit in another embodiment.

FIG. 5 is an operation explanatory view when the sealing material is deformed and moved by receiving a fluctuating external force

[Explanation of symbols]

 1, 2 Plate glass 3 Spacer 4, 5 Seal layer A Sealed space

Claims (8)

[Claims] 1. A plurality of plate glasses (1), (2) are laminated at intervals in the thickness direction through spacers (3) over the entire circumference thereof to form the plate glasses (1), (2). A multi-layer glass in which a sealed space (A) is formed between the plurality of plate glasses (1) and (2) by interposing seal layers (4) and (5) between the glass plate and the spacer (3). A multi-layer glass in which the spacer (3) is made of an elastic body that relaxes an external force applied in the thickness direction of the plate glasses (1) and (2). 2. The double glazing according to claim 1, wherein the elastic body has a C-ring shape having an opening on the side of the closed space (A) in a sectional view. 3. The double glazing according to claim 1, wherein the elastic body is formed of a spring material. 4. A plurality of plate glasses (1), (2) are laminated at intervals in the thickness direction through spacers (3) over the entire circumference thereof to form the plate glasses (1), (2). A multi-layer glass in which a sealed space (A) is formed between the plurality of plate glasses (1) and (2) by interposing seal layers (4) and (5) between the glass plate and the spacer (3). A double glazing in which the sealing layers (4) and (5) are formed from a sealing material obtained by burying a reinforcing core material in a sealing material. 5. The double glazing according to claim 4, wherein the sealing material is butyl rubber. 6. The double glazing according to claim 4, wherein the reinforcing core material contains at least one of a cloth, a net, and a linear body. 7. The surface of the spacer (3) facing the plate glasses (1), (2) is formed flat, and the sealing layer (4) is embedded in a sheet-shaped butyl rubber over the entire width thereof. The double glazing according to any one of claims 4 to 6, which is a glass. 8. The multi-layer structure according to claim 4, wherein the spacer (3) is made of an elastic body that absorbs an external force applied in the thickness direction of the plate glass (1), (2). Glass.