JP6558844B1 - Sheet glass unit for producing double-glazed glass and method for producing double-glazed glass using the same - Google Patents

Abstract

In a conventional method for assembling a double-glazed double-glazed glass, it is necessary to seal a secondary sealant in a space between a new glass plate with a spacer and an existing glass plate and a sponge block at a construction site. There is a problem that the work is not easy and takes time. A spacer is disposed so that the back surface thereof is flush with the edge surface of the rear plate glass, one side surface is attached to the inner side surface of the end plate glass, and the first double-sided adhesive tape is attached to the outer side surface of the rear plate glass. The U-shaped frame is bonded to the other side of the spacer through a primary seal, and further bonded to the bonding surface of the first double-sided adhesive tape. A glass plate unit for producing a double-sided double-glazed glass and a double-sided double-sided glass manufactured by attaching a second double-sided adhesive tape and a butyl tape to the outer side of the U-shaped frame attached to the existing window glass. Method. [Selection] Figure 1

Description

  The present invention relates to a sheet glass unit for producing a retrofitted double-glazed glass and a retrofit using the same, which can be easily converted into a double-glazed glass by adhering to an existing window glass at a site of a house or a building. The present invention relates to a method for producing a multilayer glass.

For the purpose of improving the energy saving property of houses and buildings and preventing the condensation of the window glass, a multi-layer glass having excellent heat insulation has become widespread as a window glass attached to the opening. The double-glazed glass is made of two sheets of glass that are bonded together via a hollow layer support (referred to as a spacer) around the periphery of the glass, and dry air is placed in a space surrounded by the spacer and the two sheets of glass (referred to as a hollow layer). It is enclosed. When a new house or building is built, double glazing is applied to a sash for a double glazing or a window frame to form a double glazing window.

On the other hand, the fixed number of stock houses, which are said to be over 50 million in Japan, and the existing glass windows installed in most existing buildings and stores are not single-layer glass but single-panel glass, so energy-saving performance is insufficient. Therefore, it is an important issue to replace the glass with an excellent energy-saving performance.

  Disclosed is a method of attaching a double-glazed glass to a single-glazed window frame through a sealing holding material (called an adapter) as a method for converting a single-glazed glass into a double-glazed glass while using an existing single-plate sash. (For example, Patent Document 1). This method is wasteful in that the existing sash can be used as it is, but the existing single plate glass is removed and discarded, and it is an environmental burden in that waste is generated.

  Patent Document 2 discloses that a hollow layer support made of a desiccant, a spacer, and a low moisture-permeable sealing material is interposed between an existing plate glass and a new plate glass of a building, and an existing opening fixing member and a new plate glass are interposed. And a method for producing the same are disclosed.

Patent Document 3 was made with the aim of improving the durability of the multilayer glass disclosed in Patent Document 2, and a newly-installed glass plate with a spacer is disposed on an existing glass window. It discloses a double-glazed glass obtained by sealing the periphery of four sides between glasses with a sealing material and a method for producing the same. Sealing material adheres to all existing glass plates, new glass plates with spacers, and spacers, and the two surfaces of the glass plate with spacers, the side facing the existing glass plates and the facet, adhere to the sealing material This improves the durability.

Patent Document 4 discloses a method for assembling a double-glazed glass that can be easily assembled without the trouble of assembling the double-glazed glass disclosed in Patent Document 2. A method of assembling a double-glazed glass that seems to be based on this method has been put into practical use (Non-Patent Document 1).

Patent Document 5 is based on the inventors of the present invention, and can be said to be an excellent technique particularly in that an existing opening / closing window (movable window) can be formed into a multilayer glass.

JP-A-8-93340 Japanese Patent No. 4003908 JP 2012-140767 A JP 2012-148966 A Japanese Patent No. 6097169

ATTOCH catalog, Asahi Glass Co., Ltd., 2013. 01 J

  The method disclosed in Patent Document 1 can make use of an existing sash as it is, but removes an existing window glass and newly attaches a multilayer glass using a sealing holding material called an adapter. This is wasteful in that the existing window glass must be removed and discarded.

In the method for producing a double-glazed glass according to Patent Document 2, when a new plate glass is attached to an existing glass window, a primary sealant is bonded and bonded to both glasses at the construction site, and the window frame and the new glass are further bonded. It is necessary to seal the secondary sealant between the edge surface (cut surface), and there is a problem that these assembling operations are not easy and time-consuming.

In the method of assembling the double-glazed glass according to Patent Document 3, even if the process of attaching the newly installed glass with a spacer to the existing glass window is simple, the newly installed glass plate with the spacer and the existing glass plate are subsequently installed at the construction site. Since it is necessary to seal a secondary sealant in the space between the glass plate and the spacer, there is a problem that this operation is not easy and takes time.

The assembling method of the double glazing according to Patent Document 4 is the same as the assembling method according to Patent Document 3, and the work of pasting the newly installed glass plate to the existing window glass is simplified, but at the construction site. It is necessary to seal the secondary sealant in the space between the newly installed glass plate with spacer, the existing glass plate, the spacer, and the sponge block, and there is a problem that this operation is not easy and takes time.

  The present invention has been made to solve the above-described problems of the prior art, and at the construction site, the peeling tape of the double-sided adhesive tape is peeled off and attached to the existing single-panel glass window, and the existing single-panel glass window is simply removed. The present invention provides a plate glass unit for producing a retrofitted double-glazed glass, which can easily make a flat glass window into a double-glazed glass window, and a method for producing a retrofitted double-glazed glass using the same. Here, the retrofitted multilayer glass is a multilayer glass obtained by retrofitting a unit having a new (retrofitted) sheet glass to an existing single sheet glass.

One of the embodiments of the present invention is a plate glass unit for manufacturing a retrofitted double-glazed glass for producing a retrofitted double-glazed glass by laminating it to an existing window glass, the retrofitted flat glass, a spacer, a primary seal, and a first glass A double-sided adhesive tape, a U-shaped frame, a second double-sided adhesive tape, and a butyl tape, and the spacer has a back surface flush with the edge surface of the rear plate glass, and one side surface of the primary seal. The first double-sided adhesive tape is affixed to or attached to the inner surface of the end plate of the rear plate glass, and the first seal is applied or pasted to the outer surface, the edge surface, and both side surfaces of the rear plate glass. And the U-shaped frame is bonded to the other side surface of the spacer via the primary seal, and The second double-sided adhesive tape and the butyl tape are affixed to the adhesive surface of the first double-sided adhesive tape and are attached to the outer surface of the U-shaped frame on the side to be bonded to the existing window glass. Is a flat glass unit for producing a double-glazed double-glazed glass. Here, the release tape remains on the surfaces of the second double-sided adhesive tape and the butyl tape without being peeled off. In addition, the side to which the spacer of the retrofitted plate glass is attached is called an inner side, and the other is called an outer side. Further, the side to be bonded to the existing plate glass is the side to which the spacer is bonded as viewed from the post-attached plate glass. This relationship is the same thereafter.

This embodiment will be described in detail with reference to FIG. Reference numeral 10 denotes a retrofitted (newly provided) plate glass, and an aluminum spacer 21 in which a desiccant 22 is enclosed is attached to the inner side surface of the four peripheral ends via a primary seal 23b. The edge surface (cut surface) 10a of the retrofitted plate glass is disposed flush with the back surface 21a of the aluminum spacer, and the primary seal is applied or pasted to the outer surface, the edge surface, and both side surfaces of the end plate glass. A first double-sided adhesive tape 24 is attached in an L shape so as to cover the back surface of the aluminum spacer. Then, the U-shaped frame 25 is in contact with the other side surface of the aluminum spacer through the primary seal 23c, and is further in contact with the adhesive surface of the L-shaped first double-sided adhesive tape 24 and pasted. The rear plate glass 10 and the aluminum spacer 21 are fixed. And the 2nd double-sided adhesive tape 14 and the butyl tape 15 are affixed on the outer surface of the U-shaped frame 25 on the side to be bonded to the existing sheet glass, and the sheet glass unit for producing a multilayer glass of the present invention This is an example 1. When manufacturing the retrofitted double-glazed glass, the peeling tapes 14a and 15a on the surfaces of the second double-sided adhesive tape 14 and the butyl tape 15 are peeled off to expose the adhesive, and then attached to the existing window glass. The existing single pane glass can be easily made into double glazing. Here, as the primary sealing material, a general butyl seal can be used, or butyl tape or string-like butyl rubber may be used. Moreover, it may replace with the said butyl tape 15, and may apply | coat a butyl seal | sticker and may adhere string-like butyl rubber. In this case, it is necessary to provide a release tape on the surface of the butyl seal or string-like butyl rubber.

In the embodiment shown in FIG. 1, two kinds of materials such as primary seals 23 b and 23 c and a first double-sided adhesive tape 24 are used inside the U-shaped frame, and the existing plate glass of the U-shaped frame is used. The reason why two types of materials, ie, the second double-sided adhesive tape 14 and the butyl tape 15 are used on the side to be bonded, is that the primary seals 23b and 23c and the butyl tape have excellent water resistance, while the first double-sided adhesive. This is because the tape and the second double-sided adhesive tape bear high adhesive strength. In other words, the primary seal and butyl tape have excellent water permeability resistance, and prevent moisture from entering the hollow layer, but have the disadvantage of insufficient adhesion and easy interfacial peeling. Although the first double-sided adhesive tape and the second double-sided adhesive tape are inferior in water resistance, they have an excellent adhesive force and play a role of preventing the primary seal and butyl tape from causing interfacial peeling. Therefore, if a primary sealant or butyl tape or double-sided adhesive tape having both water resistance and adhesion is developed in the future, the primary seal, butyl tape, first double-sided adhesive tape and second double-sided adhesive in FIG. All tapes can be replaced with the material. The same can be said for FIGS. 2 to 4 illustrated later.

One of the modifications of this embodiment is a plate glass unit for manufacturing a retrofitted double-glazed glass by manufacturing a retrofitted double-glazed glass by laminating it to an existing window glass. The double-sided adhesive tape, the U-shaped frame, the second double-sided adhesive tape, and the butyl tape, and the spacer has the back surface flush with the edge surface of the rear plate glass, and one side surface has the primary seal. The first double-sided adhesive tape covers the end outer surface, the edge surface, the back surface of the spacer, and a part of the other side surface of the rear plate glass. The primary seal is applied or affixed to a portion of the other side surface of the spacer where the first double-sided adhesive tape is not affixed. The U-shaped frame is attached in contact with the primary seal on the adhesive surface of the first double-sided adhesive tape and the other side surface of the spacer, and the existing window glass of the U-shaped frame. The second double-sided adhesive tape and the butyl tape are pasted on the outer surface on the side to be pasted together.

An example of this embodiment is shown in FIG. Here, the first double-sided adhesive tape 24 in the embodiment shown in FIG. 1 is attached so as to cover a part of the other side surface of the spacer. And the primary seal | sticker 23c is apply | coated or stuck on the remaining part of this side surface of the said spacer. The advantage of this embodiment is that the rear plate glass 10 and the spacer 21 can be easily fixed by the first double-sided adhesive tape 24. Here, a general butyl seal can be used as the primary seal, and a butyl tape or string-like butyl rubber may be used.

One of the other embodiments of the present invention is a plate glass unit for manufacturing a retrofitted double-glazed glass for producing a retrofitted double-glazed glass by laminating it to an existing window glass, and includes a retrofitted plate glass, a spacer, a primary seal, It consists of a double-sided adhesive tape for primary seal, a first double-sided adhesive tape, a U-shaped frame, a second double-sided adhesive tape, and a butyl tape, and the spacer has its back surface flush with the edge surface of the rear plate glass. One side surface is affixed to the inner surface of the end portion of the rear plate glass via the primary seal substitute double-sided adhesive tape, and the first double-sided adhesive tape is pasted to the outer side surface of the end plate glass The primary seal has an edge of the post-attached plate glass and a back surface of the spacer having the primary seal substitute double-sided adhesive tape attached to both sides. The U-shaped frame is adhered to the first double-sided adhesive tape, the primary seal and the primary seal substitute double-sided adhesive tape on the other side of the spacer. A flat glass unit for producing a double-glazed double-glazed glass, characterized in that the second double-sided adhesive tape and the butyl tape are attached to the outer side surface of the U-shaped frame on the side to be bonded to the existing window glass. .

An example of this embodiment is shown in FIG. Here, primary seal substitute double-sided adhesive tapes 24b and 24c are affixed to both side surfaces of a spacer for which a primary seal is normally used, and the side plate 24b is adhered to the post-attached plate glass 10. In addition, the first double-sided adhesive tape 24 is used on the outer surface of the end plate glass, and the second double-sided adhesive tape 14 is attached to the outer surface of the U-shaped frame 25 on the side to be bonded to the existing window glass. As a result, double-sided adhesive tape is affixed at a total of four locations. The primary seal 23 is applied or affixed so as not to cover both sides of the spacer, but to cover the edge surface 10a of the rear plate glass and the back side 21a of the spacer with the primary seal substitute double-sided adhesive tape affixed to both sides. The U-shaped frame 25 is bonded so as to cover the first double-sided adhesive tape 24, the primary seal 23, and the primary seal substitute double-sided adhesive tape 24c on the other side of the spacer. The same structure can be obtained by applying the primary seal 23 to the entire bottom surface of the U-shaped frame instead of applying or sticking the primary seal 23 covering the edge surface 10a of the post-attached plate glass and the back surface 21a of the spacer. It is done. The double-sided adhesive tapes 24b and 24c for the primary seal are not particularly limited, but a metal foil such as aluminum or steel, a material based on PET (polyethylene terephthalate), butyl rubber, woven fabric or nonwoven fabric, or a substrate Less ones can also be used. And as an adhesive agent provided in the both sides of this base material, an acrylic resin type, a urethane resin type | system | group, an epoxy resin type | system | group, a silicone resin type | system | group, etc. can be used from a viewpoint of adhesiveness with glass and aluminum, and a water-permeable resistance.

Still another embodiment of the present invention is a flat glass unit for manufacturing a retrofitted double-glazed glass for producing a retrofitted double-glazed glass by being bonded to an existing window glass, and the post-attached flat glass, a spacer, and a primary seal. And a first double-sided adhesive tape, a U-shaped frame, a secondary seal, a second double-sided adhesive tape, and a butyl tape, and the spacer has a back surface flush with the edge surface of the rear plate glass, Are attached to the inner surface of the end portion of the rear plate glass through the primary seal, and the first double-sided adhesive tape is applied or pasted to the edge surface and both side surfaces of the rear plate glass. The U-shaped frame is bonded to the other side surface of the spacer via the primary seal. Furthermore, it is affixed with the adhesive surface of said 1st double-sided adhesive tape, and covers the edge part outer surface of the said back plate glass with a clearance gap, Between the said U-shaped frame and the edge part outer surface of the said back plate glass The secondary seal is sealed in the gap, and the second double-sided adhesive tape and the butyl tape are attached to the outer surface of the U-shaped frame on the side to be attached to the existing window glass. It is the plate glass unit for post-installation multilayer glass manufacturing characterized by this. Again, the release tape remains on the surfaces of the second double-sided adhesive tape and the butyl tape without being peeled off.

About this embodiment, it is as having shown in FIG. 4, Comprising: The U-shaped flame | frame 25 is used also in this embodiment. Primary seals 23b and 23c are applied or affixed to both side surfaces of the hollow aluminum spacer 21 enclosing the desiccant, and are adhered to the inner side surface of the end plate glass 10 at one side surface 23b. The edge surface 10a of the post-attached plate glass 10 and the back surface 21a of the aluminum spacer 21 with the primary seal applied or pasted on both side surfaces thereof are disposed flush with each other, covering the edge surface 10a and the back surface 21a, and the first double-sided adhesive Tape 24 is affixed. One inner side surface of the U-shaped frame 25 is bonded to the other side surface of the aluminum spacer 21 through the primary seal 23c, and further bonded to the bonding surface of the first double-sided adhesive tape 24, and the other inner side surface is Opposing plate glass 10 is opposed to cover the outer surface. One inner surface of the U-shaped frame 25 is bonded to the spacer 21 via the primary seal 23c, but a certain amount of gap is formed between the other inner surface and the outer surface of the end portion of the rear glass plate 10. Therefore, the secondary seal 26 is sealed in this gap. The secondary seal 26 firmly bonds the U-shaped frame 25 and the retrofitted plate glass 10 to further increase the water permeability resistance. As the secondary sealing material, a polysulfide-based sealing material, a silicone-based sealing material, a hot-melt butyl-based sealing material, or the like can be used. Finally, the second double-sided adhesive tape 14 and the butyl tape 15 are attached to the outer surface of the U-shaped frame 25 on the side to be bonded to the existing window glass, and the second double-sided adhesive tape And the peeling tapes 14a and 15a on the surface of the butyl tape are left without being peeled off at this point, and become the plate glass unit 4 for manufacturing the double-glazed glass. Instead of the butyl tape 15, a butyl seal material may be applied or a string-like butyl rubber may be adhered, but it is necessary to affix a release tape to the surface. Moreover, a general butyl seal can be used as the primary seal, and butyl tape or string-like butyl rubber may be used.

In the example shown in FIGS. 1 to 4, the first double-sided adhesive tape 24 is not particularly limited, but may be a metal foil such as aluminum or steel, PET (polyethylene terephthalate) or butyl rubber, a woven fabric or a non-woven fabric. A base material or a base material-less material can also be used. And as an adhesive agent provided in the both sides of this base material, an acrylic resin type, a urethane resin type | system | group, an epoxy resin type | system | group, a silicone resin type | system | group, etc. can be used from a viewpoint of adhesiveness with glass and aluminum, and a water-permeable resistance. The first double-sided adhesive tape reinforces the primary seals 23b and 23c or the primary seal substitute double-sided adhesive tapes 24b and 24c provided on the side surfaces of the spacer 21 to increase the water permeability resistance.

In the example shown in FIGS. 1 to 3, the inner dimensions in the width direction of the U-shaped frame are the thickness of the rear plate glass, the thickness of the aluminum spacer, the thickness of the primary seal (or the thickness of the double-sided adhesive tape for the primary seal). It is necessary to make it approximately equal to the sum of the thicknesses of the first double-sided adhesive tape. The depth of the U-shaped frame is just good enough to hide the spacer 21 and may be about 10 to 20 mm deep. The U-shaped frame also serves as a water-permeable resistance to prevent moisture from entering through the first double-sided adhesive tape, and the end portion of the post-attached plate glass is not exposed to the outside, so that the post-attached glass is not damaged. It also serves as a protective material to prevent and has the advantage of being easy to handle.

In the example shown in FIG. 4, the inner dimension in the width direction of the U-shaped frame is about 5 mm thicker than the sum of the thickness of the retrofitted plate glass, the thickness of the spacer, and the thickness of the primary seal, and is formed as the thickness. The secondary seal 26 is sealed in the gap. Moreover, the depth of the U-shaped frame is just as good as the aluminum spacer 21 being hidden, and may be a depth of about 10 to 20 mm. Also in this case, the U-shaped frame serves as a water-permeable resistance that prevents moisture from entering through the first double-sided adhesive tape, and the end of the retrofitted glass is not exposed to the outside. It also serves as a protective material for preventing breakage of the material, and also has the advantage of easy handling.

FIG. 5 shows an example in which the resin spacer 31 is used instead of the hollow aluminum spacer as the spacer, although the configuration is almost the same as that of FIG. Since the resin spacer 31 itself has adhesiveness, it is not necessary to provide a primary seal on both sides, but a primary seal may be provided.

In the above example, since the 2nd double-sided adhesive tape must prevent the water | moisture content permeation to the hollow layer formed later, high water-permeable resistance is requested | required. Therefore, it is preferable to avoid the use of a highly breathable substrate such as a woven fabric, a nonwoven fabric, or a resin foam as the substrate of the second double-sided adhesive tape 14. However, even when such a double-sided adhesive tape of a base material is used, the butyl tape plays a role of maintaining water resistance. As an adhesive for the second double-sided adhesive tape, acrylic resin, urethane resin, epoxy resin, silicone resin, and the like can be used from the viewpoint of adhesion to glass and aluminum and water resistance. The manufacturing operation of the sheet glass unit for manufacturing the retrofitted multilayer glass in these embodiments can be performed not at the construction site but at the factory.

As the material of the U-shaped frame, a molded product of polyvinyl chloride (PVC) or a molded product of metal aluminum can be used. The thickness of the U-shaped frame is suitably about 1 to 3 mm. Then, as shown in FIG. 6, when a groove is formed on the side surface of the U-shaped frame and a string-like butyl rubber is fitted in the groove, butyl tape is attached to the U-shaped frame, Attaching butyl rubber or applying a butyl seal is no longer necessary, and the workability thereafter is greatly improved.

The post-attached plate glass that can be used in the plate glass unit for producing the post-attached multi-layer glass of the present invention is not limited to a general so-called float plate glass, but is commercially available such as a template glass, a meshed plate glass, a tempered glass, and a laminated glass. Any flat glass that is used can be used. For example, if a glass with a mesh is used, it can be a retrofitted double-glazed glass having fire resistance, and if a tempered glass is used, it can be a highly safe retrofitted double-glazed glass, and if a laminated glass is used, It can be a retrofitted double-glazed glass with excellent crime, explosion and sound resistance. By selecting the type of post-attached plate glass, it is possible to obtain a post-attached multi-layer glass having various functions. FIG. 7 shows an example of manufacturing a glass unit 6 for manufacturing a retrofitted crime prevention / explosion proof / soundproof multilayer glass using a laminated glass 40 as a retrofitted plate glass.

As described above, the present application provides a plate glass unit for producing a retrofitted double-glazed glass capable of easily producing a retrofitted double-glazed glass at a construction site. Also disclosed is a method for producing a retrofitted double glazing using a unit for use. The manufacturing method includes (1) a step of preparing a plate glass unit for manufacturing a retrofitted multilayer glass at a construction site, (2) a step of cleaning an existing window glass and a plate glass unit for manufacturing a retrofitted multilayer glass at the construction site, ( 3) A step of peeling and removing the release tape from the plate glass for manufacturing the retrofitted multilayer glass at the construction site, and (4) adhering the plate glass unit for manufacturing the retrofitted multilayer glass to the existing window glass after removing the release tape. Process. With such a simple manufacturing method, it is possible to manufacture a double-glazed glass at the construction site.

The existing window glass and the flat glass unit for manufacturing the retrofitted double glazing are preferably cleaned with a glass cleaner containing a neutral detergent or an alkaline detergent and an abrasive. This is to remove both inorganic and organic stains on the existing window glass surface. After that, it is blown up with clean water, but it is better to use ethanol or isopropyl alcohol instead of water if possible. This is because drying takes a short time. Then, the second double-sided adhesive tape and the release tape attached to the surface of the butyl tape are peeled off to expose the adhesive surface, and the adhesive surface is exposed. Is attached to the existing window glass, and a plate glass unit for producing a retrofitted double-glazed glass is pasted to complete a retrofitted double-glazed glass.

  According to the present invention, it is possible to manufacture a retrofitted multi-layer glass very simply by simply peeling off the release tape from the flat glass unit for producing a multi-layer glass at the construction site and bonding it to an existing window glass. In addition, the flat glass unit for producing a multi-layer glass according to the present invention is covered with a U-shaped frame at the four peripheral ends, so that it can be easily transported and handled, and the possibility of accidentally damaging the retrofitted plate glass is also reduced. be able to. Depending on the selection of the retrofitted plate glass, it is possible to obtain a retrofitted multi-layer glass having various functions.

It is a figure which shows an example of 1st embodiment of this invention (upper side sectional drawing). It is a figure which shows another example of 1st embodiment of this invention (upper side sectional drawing). It is a figure which shows 2nd embodiment of this invention (upper side sectional drawing) It is a figure which shows an example of 3rd embodiment of this invention (upper side sectional drawing). It is a figure which shows another example of 3rd embodiment of this invention (upper side sectional drawing). This is an example in which a U-shaped frame is grooved and string-like butyl rubber is attached to the groove. This is an example in which a laminated glass unit 6 for producing a retrofitted crime prevention / explosion proof / soundproof multilayer glass is used by using a laminated glass as a retrofitted plate glass. It is a figure which shows the retrofitted double glazing manufactured by attaching an example (5) of the plate glass unit for manufacture of the retrofitted double glazing of this invention to the existing window glass (upper side sectional drawing). It is an example which shows the structure which reinforce | strengthened the double-tipped glass shown in FIG. 8 with the 2nd secondary sealing agent 27 (upper side sectional drawing). FIG. 10 is an example showing a configuration in which the retrofitted double glazing shown in FIG. 9 is reinforced by a setting block 30 (lower side sectional view). It is an example which shows the structure which further improved the water-permeable resistance using the waterproof butyl tape 28 in the retrofitted double glazing shown in FIG. 10 (lower side enlarged sectional view). It is an example of the joining method of a U-shaped frame. It is an example of the U-shaped frame attached to the flat glass unit for manufacture of the retrofitted multilayer glass shown as Example 1. (Example 1) which is an example of the post-attachment double glazing manufactured using the plate glass unit 70 for manufacture of post-attachment double glazing of this invention. (Example 2) which is an example of the post-attachment double glazing manufactured using the plate glass unit 90 for manufacturing post-attachment double glazing of the present invention.

FIG. 8 shows an example in which the plate glass unit for producing the retrofitted multilayer glass of the present invention is attached to an existing window glass. As a plate glass unit for manufacturing a retrofitted multilayer glass, the one shown in FIG. 5 was used. At the construction site, after cleaning the existing window glass 20 and the sheet glass unit for manufacturing the double-glazed double-glazed glass installed on the window frame 60, the double-sided adhesive tape 14 and the butyl tape 15 attached to the U-shaped frame. By removing the release tapes 14a and 15a from the sheet glass unit for manufacturing the post-attached double-glazed glass against the existing window glass 20 and bonding them, complicated assembly at the construction site is not required, and the post-attached double glass having the hollow layer 50 can be easily provided. A layer glass could be produced.

In the production method of the present invention, for the purpose of preventing the flat glass unit for producing the retrofitted double glazing from falling off the existing window glass, and for the purpose of improving the durability of the produced retrofitted double glazing, A second secondary seal for reinforcement is sealed between the window frame on which the window glass is constructed, the end face of the second double-sided tape, and the U-shaped frame of the sheet glass unit for manufacturing the attached double-glazed glass. Is desirable. FIG. 9 shows an example in which a retrofitted double-glazed glass is manufactured by attaching the flat glass unit 5 for producing a retrofitted double-glazed glass to the window glass 20 applied to the window frame 60. A second secondary seal 27 is sealed between the end face of the second double-sided adhesive tape 14 and the U-shaped frame 25. As the second secondary seal, a general polysulfide sealant, a silicone sealant, a hot melt butyl sealant, or the like can be used. In the example of FIG. 9, a polysulfide sealant is used. The sealing operation of the second secondary seal 27 can be easily performed because there is no obstructive structure around it.

Further, for the purpose of improving safety and durability, it is desirable to arrange reinforcing setting blocks 30 at a few places on the lower side as shown in FIG. Dropping can be prevented by supporting the plate glass unit for manufacturing the retrofitted multilayer glass, and the force applied to the second double-sided adhesive tape 14 and the second secondary sealant 27 can be reduced. As the material of the setting block, ethylene propylene diene rubber (EPDM), natural rubber or chloroprene rubber is suitable, and the size may be about 10 × height 20 × length 50 mm. In the example of FIG. 10, two setting blocks made of EPDM of this size are arranged.

Further, in order to prevent moisture from entering the hollow layer through the interface between the second double-sided adhesive tape and the butyl seal and the plate glass and degrading the performance of the double-glazed glass, as shown in FIG. It is desirable to attach a waterproof butyl tape 28 for reinforcement between the glass 20 and the second double-sided adhesive tape and the U-shaped frame, and seal the second secondary sealant 27 thereon. By doing in this way, water permeability resistance can be raised significantly.

In the present invention, as described above, a resin spacer or a hollow aluminum spacer can be used as a spacer to be attached to the inner surface of the end portion of the glass plate unit for producing a double-glazed double-glazed glass. A well-known technique can be used as a connecting method using the connecting corner key. In addition, if the back side of the spacer and the four sides of the glass sheet are not completely flush with each other and a gap is formed in a part thereof, the gap can be eliminated by, for example, injecting hot melt butyl into the gap. Good.

As a method for joining the four corners (corner portions) of the U-shaped frame, the end portions may be cut at 45 degrees as shown in FIG. As shown in FIG. 12 (b), a U-shaped frame that has been simply cut may be fitted into four sides, and a sealing material may be sealed at the exposed end.

As an alternative to the existing window glass 20, a 5 mm thick plate glass 80 having a cleaned dimension of 350 mm × 500 mm was prepared. On the other hand, 5 mm LowE plate glass (Energy Advantage manufactured by Nippon Sheet Glass Co., Ltd.) 71 having a cleaned dimension of 342 mm × 492 mm was prepared as a retrofitted plate glass. As the U-shaped frame, two 350 mm long and two 460 mm long aluminum channels having a thickness of 2 mm, a bottom width of 16 mm, and a height of 20 mm were prepared. (FIG. 13).

Prepare two hollow aluminum spacers (made by Kyosan Light Metal Co., Ltd.) with a width of 5.5 mm and a height of 6.5 mm that are cut to a length of 329 mm and two that are cut to a length of 479 mm. About 10 g of silica gel powder was sealed, and the corner portions were connected with a corner key to obtain a spacer 72 having an outer dimension of 350 mm × 500 mm. Next, TESA double-sided tapes 84b and 84c (thickness 2 mm, width 6 mm: TESA company No. 7078, acrylic foam base acrylic adhesive, adhesive strength 40 N / cm as double-sided adhesive tape for primary seal on both sides of spacer 72 ) Was pasted over the entire circumference, and one side surface 84b was adhered to the inner side surface of the four circumferential ends of the retrofitted plate glass 71. Next, a butyl tape (Swanbond No. 9500, Takeda Chemicals Manufacturing Co., Ltd., 5 mm diameter butyl tape) is formed so as to cover the entire back surface of the spacer 72 in which the primary seal substitute double-sided adhesive tape is affixed to the edge surface and both side surfaces of the rear glass 71 The tape was flattened and pasted so as to be flat. By such an operation, a primary seal 83 having a thickness of about 2 mm was formed on the edge surface of the post-attached glass 71 and the back surface of the spacer to which the primary seal substitute double-sided adhesive tape was attached. Next, a first double-sided adhesive tape 84 (thickness 2 mm, width 16 mm: No. 7078 manufactured by TEAS) was pasted over the entire circumference of the outer surface of the end portion of the retrofitted glass 71. Next, the U-shaped frame 85 was fitted on the four sides in contact with the TESA double-sided tape on the spacer side, the primary seal (butyl tape) on the back side, and the TESA double-sided tape on the outer side of the end of the post-attached plate glass 71. The actual total thickness is 16.5 mm, and a U-shaped frame with an inner dimension of 16 mm is fitted. Finally, a double-sided tape (thickness 2 mm: No. 7078 made by TESA) 86 is applied over the entire circumference of the side of the U-shaped frame on the side to be bonded to the existing plate glass 80, and the both sides A butyl tape 87 (Swanbond No. 9300 manufactured by Takeda Chemicals Manufacturing Co., Ltd .: diameter 3 mm butyl tape) is pressed so as to be in contact with the tape, and is pasted with a width of about 4 mm. Obtained. A release tape is affixed to the double-sided adhesive tape 86 and the butyl tape 87.

The surface of the plate glass 80 was cleaned with a glass cleaner and blown up with ethanol. And the peeling tape was peeled off from the double-sided adhesive tape 86 and the butyl tape 87 of the plate glass unit 70 for post-installation double-glazed glass manufacture which were cleaned, and it stuck on the plate glass 80, and obtained post-attachment double-glazing (FIG. 14).

A unit 90 for producing a retrofitted multilayer glass of the present invention was produced by the same method as in Example 1, and the result of producing a retrofitted multilayer glass by adhering to the plate glass 91 by using the production method of the present invention is shown. This is shown in FIG.

Paste butyl tapes 73b and 73c (Swan Bond No. 9300, Takeda Chemical Manufacturing Co., Ltd., 3 mm diameter butyl tape) as a primary seal on both sides of the hollow aluminum spacer 72 filled with a desiccant (silica gel). The one side surface 73b was adhered to the inner surface of the four peripheral ends of the retrofitted plate glass 81. Next, a double-sided adhesive tape 74 (thickness: 2 mm, width: 16 mm: No. 7078 manufactured by TESA) is covered by covering the back surface of the spacer 72 with the primary seals attached to the outer side surface, the edge surface, and both side surfaces of the rear glass 81. Affixed over the entire circumference. Next, the U-shaped frame 75 was fitted on the four sides in contact with the adhesive surfaces of the butyl tape 73c and the double-sided adhesive tape 74 on the side surface of the spacer 72. The actual total thickness is 16.5 mm, and a U-shaped frame with an inner dimension of 16 mm is fitted. Finally, a second double-sided adhesive tape 76 (thickness 2 mm, TESA company No. 7078) is applied to the surface of the U-shaped frame on the side to be bonded to the plate glass 91, and further butyl tape 77 (Takeda Chemical). The product manufacturing company Swanbond No. 9300: 3 mm diameter butyl tape) was pressed and pasted so that the width was about 4 mm, thereby completing the unit 90 for producing a double-glazed glass of the present invention. A release tape is affixed to the double-sided adhesive tape 76 and the butyl tape 77.

The surfaces of the plate glass 91 and the retrofitted plate glass 81 were washed with a glass cleaner and wiped up with ethanol. And by peeling off a peeling tape from the surface of the 2nd double-sided adhesive tape 76 and the butyl tape 77 of the unit 90 for post-attachment multilayer glass manufacture, the adhesive surface is exposed, and it presses against the plate glass 91, The post-attachment multilayer glass is Manufactured (FIG. 15).

About two post-attached double glazings produced in this way (Example 1 and Example 2), after 12 days had passed since the production, the dew point test defined in JIS R3209: 1998 was conducted. Condensation did not occur even at −35 ° C., and it was found to have sufficient performance to pass the JIS test.

1, 2, 3, 4, 5, 6... Are explanatory diagrams illustrating a configuration of a sheet glass unit for manufacturing a double-glazed glass of the present invention.
10 ... Retrofitted (newly installed) flat glass 10a ... Edge of the retrofitted flat glass (cut surface)
14... Second double-sided adhesive tape 14 a ..Peeling tape for second double-sided adhesive tape 15 .. Butyl tape 15 a ..Peeling tape for butyl tape 20... Existing window glass 21. Spacer 21a ... Back of hollow aluminum spacer 22 ... Desiccant 23, 23b, 23c ... Primary seal 24 ... First double-sided adhesive tape 24b, 24c ... Primary seal substitute double-sided adhesive tape 25 ...・ U-shaped frame 26 ・ ・ ・ first secondary seal 27 ・ ・ ・ secondary secondary seal 28 ・ ・ ・ waterproof tape 30 ・ ・ ・ setting block 31 ・ ・ ・ resin spacer 31a Back surface 40 ... Laminated plate glass 40a ... Edge of laminated plate glass 41 ... Intermediate film of laminated plate glass 50 ... Hollow layer 60 ... Window frame 70 ... ..Units for manufacturing retrofitted double glazing (Example 1)
71, 81 ... 5mm thick post-attached plate glass (LowE glass manufactured by Nippon Sheet Glass Co., Ltd.)
72 ... Hollow aluminum spacer 73b, 73c ... Primary seal 74,84 ... First double-sided adhesive tape 75,85 ... U-shaped frame 76,86 ... Second double-sided adhesive tape 77, 87 ... Butyl tape 80, 91 ... 5mm thick glass 83 ... Primary seal (flat butyl tape)
84b, 84c ... Double-sided adhesive tape for primary seal substitution 90 ... Flat glass unit for manufacturing double-glazed glass (Example 2)

Claims (8)

  A plate glass unit for manufacturing a retrofitted double-glazed glass for producing a retrofitted double-glazed glass by bonding to an existing window glass, the retrofitted flat glass, a spacer, a primary seal, a first double-sided adhesive tape, and a U-shaped frame And a second double-sided adhesive tape and a butyl tape, the spacer has a back surface flush with the edge of the post-attached plate glass, and one side surface is on the inner surface of the end plate glass through the primary seal. The first double-sided adhesive tape is affixed to cover the back surface of the spacer on which the primary seal is applied or affixed to the outer side surface, the edge surface, and both side surfaces of the end plate glass. The U-shaped frame is bonded to the other side surface of the spacer via the primary seal, and the first double-sided adhesive tape The second double-sided adhesive tape and the butyl tape are attached to the outer surface of the U-shaped frame on the side to be bonded to the existing window glass. A flat glass unit for producing a double-glazed double-glazed glass.   A plate glass unit for manufacturing a retrofitted double-glazed glass for producing a retrofitted double-glazed glass by bonding to an existing window glass, the retrofitted flat glass, a spacer, a primary seal, a first double-sided adhesive tape, and a U-shaped frame And a second double-sided adhesive tape and a butyl tape, and the spacer has its back surface flush with the edge of the post-attached plate glass, and one side surface is attached to the inner side surface of the end plate glass through the primary seal. The first double-sided adhesive tape is attached so as to cover a part of the outer surface of the end plate, the edge surface, the back surface of the spacer and the other side surface of the spacer, and the other side of the spacer. The portion where the first double-sided adhesive tape is not affixed to the side is coated or affixed with the primary seal, and the U-shaped frame The adhesive surface of the first double-sided adhesive tape and the primary seal on the other side of the spacer are affixed and affixed to the outer side surface of the U-shaped frame on the side to be bonded to the existing window glass A plate glass unit for producing a retrofitted double-glazed glass, wherein the second double-sided adhesive tape and the butyl tape are attached.   A flat glass unit for manufacturing a retrofitted double-glazed glass for producing a retrofitted double-glazed glass by bonding to an existing window glass, the retrofitted flat glass, a spacer, a primary seal, a primary seal substitute double-sided adhesive tape, and a first double-sided adhesive It consists of a tape, a U-shaped frame, a second double-sided adhesive tape, and a butyl tape, and the spacer has the back side flush with the edge of the post-attached plate glass, and one side surface of the double-sided adhesive tape instead of the primary seal. The first double-sided adhesive tape is affixed to the outer surface of the end plate glass, and the primary seal is attached to the edge surface of the rear plate glass. The primary seal substitute double-sided adhesive tape is applied or affixed to cover the back of the spacer affixed to both sides The U-shaped frame is bonded to the first double-sided adhesive tape, the primary seal, and the primary seal substitute double-sided adhesive tape on the other side of the spacer, and the existing window glass of the U-shaped frame; A plate glass unit for producing a retrofitted multi-layer glass, characterized in that the second double-sided adhesive tape and the butyl tape are attached to the outer surface on the side to be bonded.   A plate glass unit for manufacturing a retrofitted double-glazed glass for producing a retrofitted double-glazed glass by bonding to an existing window glass, the retrofitted flat glass, a spacer, a primary seal, a first double-sided adhesive tape, and a U-shaped frame And a secondary seal, a second double-sided adhesive tape, and a butyl tape, and the spacer has the back surface flush with the edge of the post-attached plate glass, and one side surface of the post-attached plate glass through the primary seal. Affixed to the inner surface of the end, the first double-sided adhesive tape is affixed to cover the back surface of the spacer on which the primary seal is applied or affixed to the edge surface and both side surfaces of the post-attached plate glass, The U-shaped frame is bonded to the other side surface of the spacer via the primary seal, and is further connected to the first double-sided adhesive tape. The secondary seal is sealed in the gap between the U-shaped frame and the end outer surface of the rear plate glass. And the second double-sided adhesive tape and the butyl tape are attached to the outer surface of the U-shaped frame on the side to be attached to the existing window glass. Flat glass unit.   A step of preparing a flat glass unit for manufacturing a retrofitted multilayer glass according to any one of claims 1 to 4 at a construction site, a step of cleaning an existing window glass and a flat glass unit for manufacturing a retrofitted multilayer glass at a construction site, , A step of peeling and removing the release tape from the plate glass for manufacturing the retrofitted multilayer glass at a construction site, a step of adhering the plate glass unit for manufacturing the retrofitted multilayer glass to the existing window glass, and removing the release tape, and A method for producing a retrofitted double glazing comprising:   A reinforcing secondary seal is sealed between the window frame on which the existing window glass is constructed and a U-shaped frame of a sheet glass unit for manufacturing a retrofitted double glazing. Item 6. A method for producing a retrofitted double-glazed glass according to Item 5.   The post-attached multi-layer according to any one of claims 5 to 6, wherein a setting block is disposed between a lower frame of the window frame on which the existing window glass is constructed and a lower side of the flat glass unit for producing multi-layer glass. Glass manufacturing method. Before sealing the reinforcing second secondary seal, a waterproof butyl tape is pasted between the existing window glass, the second double-sided adhesive tape, and the U-shaped frame. A method for producing a retrofitted double-glazed glass according to any one of claims 6 to 7.

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