JP3317639B2 - Double glazing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a double glazing. More specifically, the present invention relates to a double glazing in which lace fabric is arranged in a space portion and the overall thickness is small. The double-glazed glass according to the present invention has a high heat insulating property despite its small thickness and thus has an energy-saving effect because it has high adiabatic properties. Used as a separator for tables, desks and chairs.

[0002]

2. Description of the Related Art In recent years, effective use of energy resources has attracted attention, and double-glazing has also attracted attention as one of energy-saving measures in buildings, heat insulation, cold insulation containers, and the like.
In the currently manufactured double glazing, the space defined by the two glass plates is sealed with a sealant, and the sealed space is filled with dry air or dried using a desiccant such as silica gel. It is configured to hold.

Recently, it has been proposed to use a combination of a double-glazed glass and a transparent heat-insulating film in order to improve the energy-saving effect of the double-glazed glass. On the other hand, the interval (thickness) of the space of the multilayer glass is usually 6 mm or more, and the thickness of one piece of glass is generally about 3 mm, so that the thickness of the entire multilayer glass is at least 12 mm.

[0004]

The double glazing is usually used in a form inserted into a sash frame. For example, in the door of a refrigerated / frozen showcase for storing foods and drinks, it is required to reduce the thickness of the door to increase the storage capacity as much as possible. Also, when the thickness of the double glazing is large, the weight of the entire door including the sash frame is increased. Accordingly, efforts have been made to reduce the thickness of the double glazing and to reduce the overall weight.
As one of them, a glass having a thickness of 2.7 mm has recently been used, but this is said to be the limit of the thickness of the glass in terms of mechanical strength.

[0005] On the other hand, reducing the space interval requires at least the 6 mm interval as described above from the viewpoint of lowering the heat insulation function and the structure of the spacer for maintaining the interval. The conventional structure of the spacer has a space for holding the desiccant therein and has a heat-insulated shape of a mouth to seal the distance between the two glasses to a certain width, and is sealed. A slit having a slit through which air can flow on the side of the space has been used. However, as long as a spacer having such a cross-sectional shape is used, it has been difficult to reduce the glass interval to 6 mm or less.

[0006]

Means for Solving the Problems Some of the present inventors have conducted various studies on the structure of a double-glazed spacer, and as a result, the cross-section has a gutter shape (U-shape), a concave shape or a similar shape. The inventor of the present invention has proposed that the spacer having the shape of the structure can reduce the thickness of one of the spacer materials and can maintain the space for storing the desiccant.

According to the invention proposed above, the spacer is formed of at least two glass plates, a spacer for holding a space between the two glass plates, a desiccant and a sealant housed inside the spacer. (I) the spacer is formed of a plate-like molded body,
(Ii) the spacer is substantially in line or point contact with at least one of the glass surfaces when placed between the glass plates; (iii) the spacer has a shape capable of accommodating the desiccant therein; and iv) Provided is a double-glazed glass characterized in that the spacer has a space between the inside of the spacer and the two glass plates and a communication passage through which gas can flow (see JP-A-8-169733). ).

[0008] The present inventors have determined the practicality of the double-glazed glass,
As a result of repeated studies to enhance the aesthetics or the sense of quality, it was found that the thickness of the space between the two glass plates could be reduced, that the space was sealed in a dry state, and that at least one side of the glass When a transparent insulation film is installed inside the board, there are structural features such as being able to block or reduce harmful light rays such as heat rays and ultraviolet rays,
Utilizing this feature, it has been found that when a lace material is arranged between two glass plates, a surprisingly superior decorative double glazing is obtained in various points.

That is, it has been found that when a lace material is placed between two glass plates of a double-glazed glass, a decorative double-glazed glass having the following effects can be obtained. (I) It is easy to maintain and fix the lace fabric in a state in which it is exactly sandwiched between two glass plates, and the aesthetic pattern and shape of the placed lace fabric are retained as it is, causing displacement and wrinkling. And the aesthetic form of the lace fabric is maximized. (Ii) The lace fabric is very unlikely to be discolored or deteriorated by the sun or light, and can retain the fresh color and properties of the fabric for a long period of time. (Iii) Since no static electricity is generated and there is no direct contact with indoor air, no dirt or dust is generated. Also,
There is no need to wash the race. (Iv) Unlike ground glass and opaque glass, there is a sense of transparency through the thread of the lace fabric, and it is a double-glazed glass that has both transparency and branding. (V) In addition to the above effects (i) to (iv), the multilayer glass has advantages such as heat insulation, transparency, soundproofing, and light weight.

[0010]

SUMMARY OF THE INVENTION The present invention has been achieved based on the above findings, and has at least two glass plates, a spacer for holding a space between the two glass plates, and a spacer inside the spacer. A double-glazed glass constituted by a stored desiccant and a sealing agent, wherein the double-glazed glass has a thickness of a space between two glass plates of 1.7 to 1.7.
5mm and race in the space between two glass plates
Fabric is placed, and the lace fabric is partially
Or that the entire elastomer fiber is inserted during the race.
Or in the lace fibers, two gala
It is a double glazing characterized in that it is fixed in a state sandwiched between metal sheets.

In the double glazing of the present invention, the space between the two glass plates on which the lace fabric is arranged is usually in the range of 1.7 to 15 mm, and the space is the size (thickness) of the spacer. Is determined by Further, lace fabric, solid is maintained in a state of being sandwiched between the two glass plates
Has been standardized.

However, the holding of the lace fabric can be stably held over the entire lace fabric by being fixed between two glass plates, and the lace fabric can be stably held without using an adhesive. This is preferable because it is clamped at the end of the fiber or at a portion where the thickness of the fiber is large. In this case, being able to fix without using an adhesive is a more preferable aspect for aesthetics.

As described above, in order to arrange the lace material while sandwiching it between two glass plates, the distance between the two glass plates must be 1.7 to 5 mm, preferably 1.7 to 4 mm. Advantageously, it is a double glazing having a very thin space. As such a multi-layer glass, a multi-layer glass described in Japanese Patent Application Laid-Open No. 8-169733 previously proposed by some of the present inventors (hereinafter sometimes abbreviated as "thin multi-layer glass"). Is mentioned. Hereinafter, the thin double-glazed glass will be described in detail. When the spacer in the thin multi-layer glass is provided between two glass plates, at least one glass surface is substantially in line contact or point contact. This contact state will be described with reference to FIGS. FIG. 1 shows an example of a cross-sectional structure around a double glazing of the present invention. In FIG. 1, a space is formed between two glass plates 2 and 2 ′ by a spacer 1. The spacer 1 is in line contact with one glass plate 2 and is in surface contact with the other glass plate 2 '. In the case of FIG. 1, the point where the glass plate 2 and the spacer 1 are in contact is the right end of the spacer 1 in the drawing, and has a structure in which the glass plate 2 and the spacer 1 are in contact via the double-sided adhesive tape 5. This double-sided adhesive tape 5 is used for facilitating the assembling process of the double-glazed glass and improving the sealing property, and is not always necessary.

In FIG. 1, the spacer 1 is in surface contact with the glass plate 2 ′ and is connected via a double-sided adhesive tape 6. This double-sided adhesive tape 6 is used for fixing the spacer 1 at a predetermined position on the glass plate when assembling a double-layer glass, and also has a sealing effect. That is, the double-sided adhesive tape 6 is pasted to a position where the spacer 1 of the glass plate is to be fixed, and the spacer 1 is pasted thereon, so that the spacer 1 can be easily fixed at a predetermined position.

In FIG. 1, a spacer 1 has a function of being fixed between two glass plates to fix and maintain a constant interval between the two glasses and to form a space 7 for storing a desiccant. ing. This space 7
A space is required to accommodate the desiccant particles and to have a spacing such that the particles are not comminuted by the glass plate, and to accommodate the required amount of desiccant. Although the desiccant particles are not shown in the space 7 of FIG. 1, the desiccant particles are generally formed in a space formed between the two glass plates of the space 7 (more precisely, a thickness obtained by subtracting the thickness of the spacer). Those having a smaller particle size are suitable. Specifically, the average particle size of the desiccant is in the range of 1 to 4 mm, preferably 1 to 3.5 mm. If the particle size of the desiccant is smaller than the above range, the process of filling the desiccant into the spacer 7 is not only troublesome, but also the desiccant leaks to the outside of the spacer 1 (space portion of the glass plate). Not desirable. On the other hand, when the desiccant particles are larger than the above range, not only does it need to increase the interval formed by the spacers, but also there is a possibility that the desiccant particles stored in the space 7 may be crushed by the two glass plates. Is not desirable. As the desiccant, for example, molecular sieve, silica gel, calcium carbonate and the like can be used.

The double-sided adhesive tape 4 adhered to the inside of the spacer 1 in FIG. 1 is a thin double-glazed glass in terms of its assembly workability, filling of a desiccant, and retention of the performance of the double-glazed glass. Performs extremely good functions. That is, in the thin double-glazed glass, a thin spacer having a specific shape is used in order to reduce the total thickness thereof, so that the space 7 formed by the spacer is small and the spacer itself has an open shape.
Therefore, it is extremely difficult to sufficiently store the desiccant particles in the space 7. However, the double-sided adhesive tape 4 is pre-applied to the surface of the used spacer that forms the space 7 (that is, the opposite surface of the spacer that is in surface contact with one glass plate), and the spacer to which the obtained double-sided adhesive tape 4 is attached. When 1 is brought into contact with the desiccant particles, the desiccant particles uniformly adhere to the surface of the double-sided adhesive tape 4 inside the spacer 1. The method of filling and attaching the desiccant particles to the inside of the spacer is extremely simple, and it is possible to attach a large amount of the desiccant particles in a planar manner.

Thus, the spacer having the desiccant particles adhered to the inside in the form of a sheet may be fixed to the surface of the glass plate via the double-sided adhesive tape 6, and another glass plate may be placed thereon. By using the double-sided adhesive tape 4 attached to the inside of the spacer in this manner, the workability of assembling the thin multi-layered glass and storing the desiccant is easily enabled.

Therefore, the double-sided adhesive tape 4 provided inside the spacer shown in FIG. 1 does not necessarily have to be a tape, but may be another tape as long as it has the same function. That is, a thin layer of an adhesive may be formed inside the spacer. On the other hand, the double-sided adhesive tape 5 of FIG. 1 can be interposed at a portion where the spacer 1 and the glass plate 2 are bonded by a line or a point as described above, but preferably, as shown in FIG. Can be extended to use. By doing so, the desiccant particles housed in the space 7 are fixed at predetermined locations by the adhesive function, and the movement of the desiccant together with the double-sided adhesive tape 4 can be prevented by the vibration of the double-layer glass.

The shape of the spacer is a plate-like molded body,
When installed between two glass plates, at least one of the glass surfaces has a substantially line or point contact structure, and preferably has a surface contact with the other glass surface. The thickness of such a spacer is usually from 0.3 to 0.3.
7 mm, preferably 0.4-0.6 mm is suitable,
This thickness can be changed slightly depending on the material and shape, and the thickness does not necessarily have to be uniform. The material of the spacer may be a metal (for example, aluminum or stainless steel) or a resin. In the case of a metal, it can be formed into a desired shape by a roll forming method or a pressing method.

The spacer can also be obtained by injection molding of a thermoplastic resin such as polycarbonate resin, polyester resin, polyamide resin, polyolefin resin or the like, or post-processing molding of these sheet materials.

The cross-sectional shape of the spacer may be the shape shown in FIG. 1 or the cross-sectional shape shown in (1) to (5) of FIG. The spacer has a closed space formed between the two glass plates and a communication passage through which gas can flow. For example, in the case of the spacer 1 of FIG. 1, the end of the spacer on the left side is not in contact with the glass plate 2 and is separated by a small interval, as in (1) of FIG. 3 and (4) of FIG. The interval (d1) should be such that the gas can flow and the desiccant particles cannot pass through. Further, the communication path may be one in which a small hole (d2) is provided in the spacer as shown in (2) of FIG. 3 or (3) of FIG. In addition, as shown in FIG. 3 (5), the end on the side of the sealed space may be in point contact with the glass plate, or a slight gap may be present as long as the end is sealed. Alternatively, a structure having a saw-toothed surface and contacting a glass plate may be used. As described above, the communication passage through which the gas flows needs to have a size that does not allow the desiccant particles to pass through.

The entire thin multi-layer glass can be made thinner by using spacers having the cross-sectional shapes shown in FIGS. 3 (1) to 3 (5). The thickness of the space (corresponding to H in (4) of FIG. 3) can be in the range of 1.7 to 5 mm, preferably 1.7 to 4 mm.

The double-glazed glass has a spacer and a desiccant arranged between two glass plates as described above.
The gas inside is kept dry by a sealant commonly used in double glazing. The sealant is filled between the two glass plates outside the spacer as commonly used, and is shown as a sealant 3 in FIG. As the sealant, those commonly used for double-glazing can be used. Representative examples of the sealant include poly (isobutylene) -based, polysulfide-based, silicone-based, and polyurethane-based sealants. These are preferred because they have a low water vapor transmission rate, maintain an adhesive force for a long time, and have excellent followability in the tensile direction.

In the double glazing, it is preferable that a transparent surface heating element is mounted inside a glass plate on one side,
By doing so, dew condensation can be prevented or suppressed. As a method of mounting the transparent surface heating element inside the glass plate, a means known per se in the case of a double glazing can be used. For example, a method of forming a coating of a tin or indium oxide, a metal of gold or silver or an alloy thereof directly on the surface of a glass plate by a sputtering method or a sintering method, or a film on which the coating is formed May be attached to a glass plate. When a transparent surface heating element is mounted, electrodes made of silver, gold, or the like are attached to both ends of the surface, and in use, a voltage is applied to heat the surface to prevent condensation.

Further, by mounting a transparent heat insulating film inside the glass plate on one side of the double glazing of the present invention, the heat insulating function of the double glazing can be further enhanced. That is, since the double-glazed glass of the present invention has a small thickness in the space, the mounting of the transparent heat-insulating film is very effective to compensate for the lack of the cross-sectional effect. The transparent heat-insulating film itself is commercially available, and can be used as it is. As this heat insulating film, metal such as zinc, tin, gold, silver, etc. is deposited,
A film coated by means such as sputtering, which can block ultraviolet rays and heat rays. Also,
Preferably, the two glass plates are both transparent plate glasses, but the glass on one side may be opaque glass, for example, ground glass.

In the above-mentioned thin double-glazed glass, since the distance (corresponding to H in FIG. 3) between the two glass plates is small, it is relatively easy to hold the lace material between the two glass plates. There, kill <br/> in be held without using an adhesive.

The lace material inserted and placed in the double-glazed glass is usually used as a lace for curtains, rugs, wall hangings,
Any material may be used as long as it is used for clothing materials and other decorations, and may be hand-knitted, hand-woven, embroidered, machine-knitted, machine-woven, or the like. The fiber material of the lace fabric may be natural, synthetic or semi-synthetic, and includes, for example, polyester, silk, cotton, rayon and the like, and is not limited at all.

In particular, when the lace material is sandwiched and held by the thin double-layer glass, it is effective to use a material in which the elastomer fiber is inserted into the lace material or mixed and mixed in the lace fiber. It is. In other words, the elastomer fiber becomes less slippery in the lace fabric in the portion that comes into contact with the glass plate due to its elasticity,
It is easy to be held in the space. Insertion or incorporation of elastomeric fibers is sufficient at the upper end or a portion of the lace fabric, not necessarily the entire lace fabric. The elastomer fibers may be twisted with the lace fibers or may be entangled. Examples of the elastic polymer constituting the elastomer fiber include polyurethane and polyetherester. Further, a core-sheath type composite fiber in which the elastic polymer is a sheath component may be used.

The position where the lace material is arranged in the double glazing is arbitrarily selected depending on the purpose and use of the double glazing, the pattern or size of the lace material, and the like. Some examples are shown in FIGS. 4 (1) to 4 (6). FIG.
In, the shaded area indicates the area where the lace fabric is arranged. As shown in (1) of FIG. 4 to (6) of FIG. 4, the lace fabric may be arranged on the whole of the double-glazed glass, or may be partially arranged. In each of (1) to (6) of FIG. 4, the periphery of the multi-layer glass is surrounded by the sash 11, but the sash may be a part or may not be used at all depending on the application. You may.

In FIG. 4, reference numeral 10 in (1), (4) and (6) denotes the upper end of the lace material. By making this upper end thicker than the other parts of the lace fabric (by inserting or mixing elastomer fibers as the case may be), it becomes easier to hold and sandwich between the two glass plates.

Further, according to the study of the present inventors, when the distance between two glass plates in a double-glazing is relatively large, for example, when the distance is 5 mm or more, particularly 6 mm or more, the action of the magnet As a result, it has been found that all or a part of the lace fabric can be moved, and the use form and application of the double-glazed glass of the present invention can be further expanded.

Thus, according to the present invention, at least two glass plates, a spacer for holding a space between the two glass plates, a multi-layer comprising a desiccant and a sealant housed inside the spacers Glass,
In the double glazing, a lace fabric is disposed in a space between two glass plates, and a magnet-sensitive metal member is attached to the lace fabric, and the lace fabric is operated by a magnet from the outer surface of the double glazing. The present invention provides a multi-layer glass in which all or part of the glass is movable.

In this double-glazed glass, a magnet-sensitive metal member is partially attached to the inner lace fabric, and a magnet is operated from the outer surface of the double-glazed glass to move along the surface of the double-glazed glass. Part or all of the race can be moved. In particular, a cut is made in the longitudinal direction at one or two places of the lace fabric, a magnet-sensitive metal member is attached to the cut part, and the cut part is opened and closed by operation of a magnet from the outer surface of the double glazing. Such a structure is practical and convenient.

[0034] In the double-glazed glass, the magnet-sensitive metal member partially attached to the lace material may be a metal having a property capable of bonding to a magnet.
Usually, it is iron or a metal mainly composed of iron, and may not have magnetism. The shape of the member is not particularly limited, such as a linear shape, a ribbon shape, a button shape, and a pellet shape.

On the other hand, the magnet operated along the glass surface from the outer surface of the double-layer glass can have various shapes such as a button shape, a ribbon shape, and a plate shape. The movement of the lace fabric by the magnet can be performed not only by opening and closing the cut portion but also by moving the entire lace fabric left or right or up and down. For that purpose, it is necessary to attach the magnet-sensitive metal member to a required portion of the lace fabric. The location and number of attachments are determined as appropriate depending on the size of the lace fabric, the position where the lace fabric moves, and the like.

[0036]

The double glazing of the present invention has a lace material disposed between two pieces of glass, is excellent in aesthetics and has both transparency and a bridging property. It is not stained and is kept fresh for a long time. In particular, when a heat insulating film is laminated, discoloration and deterioration hardly occur, a vivid color can be maintained for a long time, and the beauty of the lace pattern can be enjoyed forever. Therefore, it is excellent as a very high-grade product as a practical product or decorative product for windows, doors, partitions, wall hangings, and the like. Further, in the case of a thin multi-layer glass, it is easy to make and assemble the glass even though it is thin. Therefore, the double glazing of the present invention is not only manufactured as insulated glass,
It is also excellent in terms of convenience.

[0037]

EXAMPLES Examples of the double glazing of the present invention will be shown below, but these are merely for explanation, and the present invention is not limited to these.

Example 1 Using two glass plates (500 mm in width, 800 mm in length, and 2.7 mm in thickness), a double glazing having the cross section at the end shown in FIG. 1 was prepared. At this time, a lace cloth (width of the upper end portion 10 is 5 mm, and the thickness thereof is 3 mm before being sandwiched) between two glass plates of 490 mm in width and 300 mm in height is shown in FIG. 4 (4). It was arranged as follows. The spacer 1 was obtained by a roll forming method from a 0.4 mm-thick aluminum plate, and its cross-sectional dimensions were H = 1.7 mm and L = L as shown in (4) of FIG.
5 mm, W = 6.5 mm, Q = 39 °, d ₁ = 0.15 m
m. Each of the double-sided adhesive tapes 4, 5 and 6 in FIG. 1 has a thickness of 150 μm, and a molecular sieve A-4 [manufactured by Union Showa Co., Ltd .; 5 mm] are stored in a state of being adhered to the double-sided adhesive tape 4, but the desiccant is not shown in FIG.

The four corners of the spacer at the four corners of the double-glazed glass are fixed with nylon joints (jigs), but are not shown in FIG. Further, the outside of the spacers on the four sides of the multilayer glass is sealed with a combination of a sealant [Hamaite PRC428Y (manufactured by Yokohama Rubber Co., Ltd.)] and a primer to shut off the air and the outside air in the multilayer glass. The total thickness of the glass is 7.4 mm,
The thickness of the air layer was 2 mm. This double glazing is
The pattern of the lace fabric was clearly arranged, and had a very beautiful appearance, and also had a sense of quality. This double glazing is
After 6 months, there was no dust and no discoloration.

Example 2 In the double-glazed glass of Example 1, a transparent heat insulating film [Reftel ZA] was placed inside one of the two glass plates.
05G; manufactured by Teijin Limited] in the same manner as in Example 1 except that a spacer having the same shape, a desiccant, a double-sided adhesive tape, and a sealant were used to form an air layer having a thickness of 2 mm and a total thickness of 7.4 mm. A double glazing was made. A window made of this double-glazed glass was prepared and held for one year with the side on which the transparent heat insulating film was stuck on the outside (side exposed to sunlight), but no discoloration was observed in the lace fabric.

Example 3 In the double-glazed glass of Example 1, a transparent heat insulating film [Reftel ZA] was placed inside one of the two glass plates.
-05TH; manufactured by Teijin Limited], and Ag-paste [RL-10; manufactured by Daita Metal Foil & Powder Co., Ltd.] is applied to the upper and lower edges of the upper and lower short sides (horizontal sides) of the film. Width 7
mm electrode was provided to produce a double-glazed glass. However, a polyetherester elastic yarn was inserted into the upper end of the lace fabric. Create a window with this double-glazed glass,
It was kept for one year in the same manner as in Example 2. As a result, no discoloration or stain of the fabric was observed. Also, no displacement of the lace fabric occurred.

[Brief description of the drawings]

FIG. 1 shows an example of a cross-sectional structure around a thin double-glazed glass of the present invention.

FIG. 2 shows an example of a cross-sectional structure around a double glazing.

FIG. 3 schematically shows a cross-sectional shape of a spacer used for a thin double-glazed glass.

FIG. 4 is a schematic view showing a state in which lace fabric is arranged in a double-glazed glass.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 spacer 2 glass plate 2 ′ glass plate 3 sealant 4 double-sided adhesive tape 5 double-sided adhesive tape 6 double-sided adhesive tape 7 desiccant storage space 8 desiccant 9 lace fabric 10 lace fabric end 11 sash

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-8-169733 (JP, A) JP-A-5-24888 (JP, A) JP-A-5-9880 (JP, A) 57581 (JP, A) Japanese Utility Model Showa 55-15091 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) C03C 27/06 101

Claims (5)

(57) [Claims] 1. A double glazing comprising at least two glass plates, a spacer for holding a space between the two glass plates, a desiccant and a sealing agent contained inside the spacer, plurality glazing, the thickness of the space between two glass plates is lace fabric is arranged in the space portion of it and two glass plates a 1.7～5Mm, further the lace fabric is partially or D throughout
Lastmer fiber is inserted or not during the race
Is compounded in the lace fibers and sandwiched between two glass plates.
A double glazing characterized in that it is fixed while being held. 2. The double-glazed glass according to claim 1, wherein the lace fabric is fixed with at least an upper end thereof sandwiched between two glass plates. 3. The double-glazed glass according to claim 1, wherein a transparent surface heating element is mounted inside the glass plate on one side. 4. The double-glazed glass according to claim 1, wherein a transparent heat insulating film is mounted on at least one side of the glass plate. 5. In the double-glazed glass, (i) the spacer is formed of a plate-shaped molded body, and (ii) when the spacer is provided between glass plates, at least one of the glass surfaces substantially has a line or point contact. (Iii) the spacer has a shape capable of accommodating the desiccant therein, and (iv) the spacer has a space between the inside thereof and the two glass plates and a communication passage through which gas can flow. The double-glazed glass according to claim 1.