JP2002061464A - Heat insulating window material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulating window material which facilitates installation thereof in an existing glass-paned window, is excellent in soundproofing, sound insulation, and heat insulation properties, and can prevent condensation. SOLUTION: A plurality of transparent synthetic resin sheets and/or glass sheets are laminated on each other with a septate material for preventing air convection interposed therebetween. Further, spacers for retaining gaps are arbitrarily interspersed between the transparent synthetic resin sheets, and the transparent synthetic resin sheets and the spacers are bonded to each other, followed by hermetically sealing side surfaces of the transparent synthetic resin sheets, to thereby form the heat insulating window material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention aims at shielding solar radiant heat and at the same time, preventing the release of indoor heat. It is about window materials.

[0002]

2. Description of the Related Art One ordinary glass plate incorporated in a conventional aluminum sash fitting, a wooden fitting, etc., has soundproofing, soundproofing, and so on.
The performance of heat insulation is remarkably poor.In today's living environment, the age of energy saving is approaching.In addition, it is a matter of concern in consideration of personal health management and economic problems. There is a need for an improved structure. Conventionally, double glass and triple glass have been known as window materials in consideration of heat insulation, but they are easily broken, have a large thickness, are quite heavy, are inconvenient to handle, and are expensive.

As a window material improved in this respect, Japanese Utility Model Application Laid-Open No.
No. 22332, which is provided with a gap between the glass and the heat insulating panel and is closed, and a grid frame formed in a grid pattern with an appropriate division is protruded from a synthetic resin plate-like body disclosed in Japanese Utility Model Laid-Open No. 49-14937. And the glass plate is bonded to the protruding portion.
Japanese Patent Application Laid-Open No. -103054 proposes a device in which a double glass sheet metal spacer is inserted and an air layer is blocked by a plurality of sheets. However, it is difficult to attach to existing windows.

[0004] Also, as an attachment to an existing window,
As shown in Japanese Utility Model Application Laid-Open No. 56-139791, an insulating plastic sheet is attached to glass, but the durability is poor. As in Japanese Patent Application Laid-Open No. 57-6083, there is an example in which a glass with a packing is attached to an existing window and the space is evacuated, but it is difficult to prevent leakage of the packing for maintaining the vacuum. Further, by applying a vacuum, an extra stress is applied to the existing glass part, and there is a possibility that the glass part may be damaged.
In Japanese Patent Application Laid-Open No. 56-28986, a plastic containing a bar is sandwiched between double glasses, but it is not easy to attach the plastic to an existing window.

[0005]

As described above, in the conventional multi-layer structure of window material for heat insulation, a method of evacuating a space is generally used. In addition, there is a problem that the weight increases, the thickness increases, the cost increases, and the glass cannot be attached to an existing sash because the glass thickness does not match.
In addition, fittings having a double-window structure are commercially available, but replacing them with conventional fittings requires a lot of cost, and in some cases, cannot be attached depending on the structure of the building.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above technical background, and it is an object of the present invention to provide excellent soundproofing, soundproofing, and heat insulating properties, thus preventing dew condensation. It is an object of the present invention to provide a window material that can be easily and easily installed by simply using an existing fitting without discarding the fitting and mounting it thereon.

[0007]

Means for Solving the Problems As a result of diligent research, the inventors have found that it is possible to reduce the heat transmission coefficient of a window material by a method of preventing air flow and convection without vacuuming the space, and easily find an existing method. We have invented a window material that can be attached to a window material to enhance its performance such as soundproofing, sound insulation and heat insulation.

That is, according to the first invention of the present invention, a partition member for preventing air convection is arranged between a plurality of superposed transparent plates, and a spacer for holding a gap between the plurality of transparent plates is provided. A heat insulating window material formed by arbitrarily scattering, adhering the plurality of transparent plates and a spacer, and sealing a peripheral edge of a gap between the plurality of stacked transparent plates.

In a second aspect, the present invention provides a heat insulating apparatus wherein an edge for holding a closed air layer between one surface of the plurality of transparent plates and a mounting surface is formed on a periphery of the plurality of transparent plates. It is a window material.

According to a third aspect of the present invention, an edge for holding a closed air layer between one surface of the transparent plate and the mounting surface is formed on one of the plurality of transparent plates. A heat insulating window material formed by adhering spacers for holding a gap between the plate and the mounting surface at arbitrary positions and adhering to the plate, and closely attaching an edge of the plate to the mounting surface.

A fourth invention is the heat insulating window material according to any one of claims 1 to 3, wherein the partition wall material has a honeycomb structure.

According to a fifth aspect of the present invention, there is provided the heat insulating window material according to any one of claims 1 to 3, wherein the partition material is held by a spacer.

A sixth aspect of the present invention is the heat insulating window material according to any one of claims 1 to 3, wherein a water-absorbing agent is disposed on the outer periphery of the gap between the plurality of superposed transparent plates.

[0014]

The operation of the present invention will be described below with reference to the drawings. According to the first invention, a partition member 4 for preventing air convection is arranged between a plurality of transparent plates 1a and 1b, and spacers 2 for maintaining a constant gap between the plates are arbitrarily scattered. Since the plate and the spacer 2 are adhered to each other and the peripheral portions 5 of the plurality of transparent plates are sealed and formed, a heat insulating window material having a sealed gap can be easily manufactured . The thickness of the gap is 1 to 10 mm, preferably 2 mm.
According to the results of the experiment, no significant change is observed in the heat transmission coefficient even when the thickness exceeds 2 mm.

The plurality of transparent plates 1a used in the present invention,
There is no particular limitation on the material of 1b, but polyvinyl polymers such as polyvinyl chloride, polyethylene, polypropylene, polystyrene, and acrylic resins, copolymers thereof, and polyamides in terms of good weather resistance and transmission of visible light. , Polyester, polycarbonate, glass and the like are preferred. From the viewpoint of daylighting, transparent synthetic resin and glass are preferable. A weathering agent, a flame retardant, a heat absorbing agent, a heat ray reflective agent, and an inorganic filler for enhancing opacity and decorativeness may be added to the plurality of transparent plates. In addition, treatment such as appropriately treating the surface of the transparent plate or attaching a film can also be performed. For example, the properties of a mirror glass can be imparted by subjecting one surface of a synthetic resin plate to aluminum vapor deposition or a treatment with a paint containing silver powder.

The spacers 2 between the multi-layered transparent plates 1a and 1b are formed by arranging thin columns (for example, 3 to 5 mm in diameter) slightly higher in height than the partition members 4 at intervals of several tens of centimeters. The transparent boards 1a, 1b are bonded to the boards 1a, 1b.
The purpose is to maintain a constant gap between b. The spacer 2 needs to have a shape and dimensions that are unlikely to impair the transparency of the heat-insulating window material of the present invention.
It has a columnar shape such as a hexagon and has dimensions that can be inserted into the space of the partition wall material 4.

The spacers 2 are hidden by a frame when arranged around the heat-insulating window material, so that the spacers 2 may have any shape that prioritizes the purpose of fixing the partition material 4. However, the spacers 2 are arranged in the visible portion of the heat-insulating window material. The spacer has a cylindrical shape and a diameter of 3 ~
About 5 mm is desirable. The spacer 2 is made of a transparent, weather-resistant, and highly adhesive material such as a polyvinyl polymer such as polyvinyl chloride, polyethylene, polypropylene, polystyrene, or an acrylic resin, a copolymer thereof, a polyamide, Polyester, polycarbonate, glass and the like are preferred.

In the second invention, in addition to the structure of the first invention, an edge 71 is formed on the periphery of one transparent plate 1b, and the projections 8 are arranged on the surface of the synthetic resin plate 1b facing the existing glass A. By providing a closed air layer 10 with the existing glass A on the mounting side to form a structure that keeps a constant interval by bonding, the heat transmission coefficient is further reduced as compared with the first invention, and the heat insulating performance is improved. Can be enhanced.

In the third invention, an edge 7b is formed on the periphery of one transparent plate 1b, and a closed air layer 10 is provided between the transparent plate 1b and the existing glass A on the mounting side. By forming a structure in which spacers 8 for holding a gap between the mounting surfaces A are arbitrarily scattered and bonded to the transparent plate, the heat transmission coefficient can be reduced and the heat insulation performance can be improved.

According to the fourth aspect of the present invention, the partition wall is formed into a honeycomb structure so that the divided partition walls are automatically formed, and the air layer between the plurality of transparent plates is divided into small spaces. The natural convection can be prevented even if the width is set wide.
The honeycomb structure used in the fourth invention is formed by bonding a part of adjacent multilayer sheets and pulling them apart until each layer is bent at about 60 degrees from the original plane, and the cross section is mesh-like. It has a so-called honeycomb shape in which hexagonal pillars are connected. However, the cross-sectional shape of the partition wall material is not limited to a hexagon, but may be any shape that can divide a plane, such as a square or a triangle.

The partition member 4 includes a plurality of transparent plates 1a,
Since it is installed in the gap 3 of 1b and serves to prevent air convection in the gap 3, the shape is not limited. However, taking into account conditions such as transparency and absorption of solar radiation heat, the members are limited to a paper honeycomb material described later. Regarding the height dimension of the partition wall material 4,
It is desirable in manufacturing to make the length of the spacer about 0.1 mm shorter than the length of the spacer. Note that paper is preferable as the material of the partition wall member 4. Paper is lightweight and has low thermal conductivity compared to plastics and metals, so it is suitable as a heat insulating material. At the same time, it is economically suitable, such as being inexpensive and having good workability. Poor weather resistance can be improved by laminating or painting a synthetic resin or aluminum foil.

When the partition member 4 is bonded to a plurality of transparent plates, the transparency of the bonded portion deteriorates, which is not preferable. In addition, since the shape of the partition wall material is net-like and can be expanded and contracted, it has conventionally been extremely difficult to maintain the shape and fix it to other members. Therefore, the fifth invention proposes a method in which the partition wall material 4 is hooked on the spacer 2 and stretched to be attached to a predetermined position and manufactured. If this method is used, it functions as a jig for setting the partition material 4 which can be placed at the time of manufacture, and also prevents the partition material 4 from expanding and contracting due to a temperature change such as sunlight during use, and the partition material by opening and closing a shoji. 4 can be prevented from being displaced or deformed.

Since the heat-insulating window material of the present invention is manufactured at atmospheric pressure, it is inevitable that the humidity is constant, that is, a small amount of water is mixed. Therefore, in the sixth invention, in order to prevent dew condensation on the plurality of transparent plate surfaces, the water absorbing agent 6 is put inside the outer peripheral edge of the space 3 of the heat insulating window material, and then sealed, and the inside of the space between the plurality of transparent plates 1a, 1b is sealed. A small amount of water trapped in the water is absorbed to prevent dew condensation on the inner surfaces of the transparent plates 1a and 1b due to temperature changes during use.

[0024]

Embodiments of the present invention will be described below with reference to the drawings. In Examples 1 to 3, a plurality of transparent plates 1a,
As 1b, two flat plates of a transparent polycarbonate resin plate (1.8 m in length and 1.8 m in width) having a thickness of 2 mm are prepared. First, a transparent acrylic resin column (3
mm) spacers 2 are arranged and adhered at intervals of about 15 cm, and the diagonal length using paper as the partition wall material 4 is 30 m.
A paper honeycomb material having a height to be described later, which is formed of a regular hexagon of m, is hung on the spacer 2, and the other synthetic resin plate 1
a is brought into contact with and adhered to a spacer, and a silicone resin is applied as a sealing material 5 around the plurality of transparent plates formed in the above-mentioned multilayers and cured to seal the gaps between the synthetic resin multilayers. Fabricated on the example 5 mm glass plate.

In the fourth embodiment, a 1 mm-closed air layer 10 is provided on a test body manufactured in the same manner as in the first embodiment while facing the existing glass A, so that a transparent plate 1b on the glass mounting side is provided. An edge was provided on the periphery. Also, the height of the projecting pieces manufactured in the same shape as the spacer was set to 1 mm, arranged on the transparent plate 1b at intervals of about 30 cm, and bonded with an adhesive, and bonded to the 5 mm glass plate of the comparative example. did.

In the fifth embodiment, the transparent plate 1a of the fourth embodiment is used.
A 2 mm glass plate was used, and a 1 mm thick polycarbonate resin plate was used as the transparent plate 1b to adhere to the 5 mm glass plate of the comparative example.

In the sixth embodiment, the spacers 2 for holding the gap 3 of 5 mm in the first embodiment are arbitrarily scattered, the partition material 4 is inserted, and the transparent plate 1b corresponding to the 5 mm glass is removed. It was produced by bonding the plate 1a to the 5 mm glass plate of the comparative example.

A water-absorbing resin having a starch-based component (trade name: Sun) was placed on the outer periphery of the voids of the plurality of transparent plates as a water-absorbing agent 6 on the same test specimen as that prepared in Example 4. Fresh Sanyo Chemical Industry Co., Ltd.) 2g
(About 0.3 mm granular) was inserted into the gap 3 and the space 10, and the periphery of the gap between the plurality of transparent plates was sealed using a silicone resin.

In Examples 1 to 6, the thickness of each constituent material and the specification of the gap size such as the air gap and the air layer were set as follows, and they were adhered to the 5 mm glass plate of the comparative example. Example 1: 2 mm plate; gap 2 mm; 2 mm plate Example 2: 2 mm plate; gap 3 mm; 2 mm plate Example 3: 2 mm plate; gap 5 mm; 2 mm plate Example 4: 2 mm plate; gap 2 mm; 2 mm plate; air Layer 1 mm Example 5: 2 mm plate; air gap 2 mm; 1 mm plate; air layer 1 mm Example 6: 2 mm plate; air layer 5 mm

As a comparative example, a single float glass plate having a thickness of 5 mm was used.

Each of the examples and the comparative examples produced as described above was subjected to a JIS standard test (JIS-A-1412).
It was measured and measured based on “Method of measuring thermal conductivity and thermal resistance of thermal insulating material”. In this test, it was confirmed how the difference between the gaps 3 and the air layers 10 of the plurality of transparent plates affects the heat insulation performance.

The test method is as follows. A test piece is mounted on a normal glass plate (thickness: 5 mm) used as a window glass, a glass surface on which no test piece is mounted is heated, and a transparent plate 1a surface of the test piece is cooled. And the surface temperature of both the heating side and the cooling side. That is, the difference between the surface temperature on the heating side and the surface temperature on the cooling side is measured to determine the heat insulation performance of the test body. Therefore, the larger the difference between the surface temperature on the heating side and the surface temperature on the cooling side, the higher the heat insulation performance.

Table 1 below shows the above-mentioned JIS of each embodiment.
It is an actually measured value in a standard test (JIS-A-1412).

[0034]

[Table 1]

As shown in FIG. 3, the embodiment of the present invention employs T
In (temperature of each part), the difference between H (surface temperature on the heating side) and C (surface temperature on the cooling side) is larger than that in the comparative example.

The fourth embodiment is different from the first embodiment (a gap of 2 mm).
The test piece was manufactured by providing an air layer 10 having a thickness of 1 mm which was closed by providing an edge portion 7a around the surface of the test piece to be mounted on the glass, as shown in FIG. It was confirmed that Example 1 having the lowest heat insulating performance had the same heat insulating performance as that of Example 3 by providing a closed air layer having a thickness of only 1 mm on the mounting surface.

As a result of conducting a comparative test (three test specimens) in a comparative example and an example on the state of dew condensation on the inner surface of a plurality of transparent plates due to a temperature change, the indoor temperature of the plurality of transparent plates was set to 2
Keep at 0 degrees, and when the outside temperature of the glass surface falls below 2 ° C,
In Example 1, whitening condensation was observed in a part of the inside of the synthetic resin plate in any of the test pieces, but no condensation was observed in other examples even when the outside air temperature was lowered to −5 ° C. .

[0038]

As shown in the JIS test results of each of the embodiments, if the existing glass is covered with a heat-insulated window frame having an air space and a partition wall inside the present invention, the heat insulating property can be significantly improved. Can be. Also, when attaching the heat-insulating window material to the existing glass surface on the receiving side, an edge is provided on a surface of the peripheral material that comes into contact with the existing glass, and one side of the transparent plate and the existing glass surface on the receiving side are attached. By forming a closed air layer between the layers, a higher heat insulating effect can be obtained. In addition, after inserting a water absorbing agent into the outer peripheral edge of the void of the heat insulating window material, it is sealed, absorbs a small amount of water trapped in the voids of the plurality of transparent plates, and changes the inner surface of the transparent plate due to temperature change during use. Dew condensation can be prevented.

According to the present invention, compared to a single-layer glass window material, heat conduction is significantly reduced, sound insulation and heat insulation are excellent, and the effect of preventing dew condensation on the inner and outer surfaces of the window material is obtained. In addition, a heat insulating window material that can be easily installed can be provided.

[Brief description of the drawings]

FIG. 1 is a bottom view including a partial cross section of a heat insulating window material of the present invention.

FIG. 2 is a partial side view including a cross section of FIG. 1;

FIG. 3 is a partial side view including a cross section of a third invention of the present invention.

FIG. 4 is a comparison diagram of heat insulation performance of each embodiment.

[Explanation of symbols]

 1a Transparent plate 1b Transparent plate 2 Spacer 3 Void 4 Partition material 5 Sealing material 6 Water absorbing agent 7 Peripheral material 7a Edge 7b Edge 8 Projection piece 9 Adhesive 10 Air layer A Glass plate to be a mounting surface

Continued on the front page F-term (reference) 2E016 BA01 BA02 CB01 CB02 CC02 EA05 EA06 2E039 AB03 AB05 AB06 AB07 AB08 4G061 AA09 AA11 AA21 BA01 CA02 CA05 CB02 CB07 CB12 CB16 CD02 CD13 CD22 CD24 CD25

Claims (6)

[Claims] 1. A partition material is sandwiched between a plurality of superposed transparent plates, spacers for holding a gap between the plurality of transparent plates are arbitrarily scattered, and the plurality of transparent plates and a spacer are bonded. And a heat insulating window member formed by sealing a peripheral edge of a gap between the plurality of stacked plates. 2. An edge for holding a closed air layer between one surface of the plurality of transparent plates and a mounting surface is formed on one peripheral edge of the plurality of transparent plates. The heat insulating window material according to claim 1, wherein 3. An edge portion for holding a closed air layer between one surface of the plurality of transparent plates and a mounting surface is formed on one peripheral edge of the plurality of transparent plates. 2. The heat insulating window according to claim 1, wherein spacers for maintaining an interval between air layers are arbitrarily scattered, adhered to the plate, and edges of the plurality of transparent plates are closely attached to a mounting surface. Wood. 4. The heat-insulating window material according to claim 1, wherein said partition member has a honeycomb structure. 5. The heat-insulating window material according to claim 1, wherein the partition wall material is hung and held by the spacer. 6. A water-absorbing agent is arranged on the outer periphery of a gap between the plurality of superposed transparent plates.
3. Insulated window material.