JP2012140766A - Glass sheet having spacer, assembly method of double glazing window, and double glazing window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide: a glass sheet having a spacer, which eliminates a hole opening process for composing a double glazing window and improves design of the double glazing window; an assembly method of a double glazing window; and a double glazing window.SOLUTION: Glass sheets 10 and 40 having a spacer are provided with a corner key 34 having a through-hole 34C for air release as a part of the spacer 20. As a result, when the glass sheet 10 having the spacer is press-fitted to a glass window 14 for attachment of the glass sheet 10 having the spacer to the glass window 14, air in the air layer is exhausted outside through the through-hole 34C. The increased pressure in the air layer due to the press-fitting can be thus reduced. The through-hole 34C of the corner key 34 is sealed with the body part 36A of a cap 36. The body part 36A is covered with the corner key 34 and not exposed from a double glazing window, so that the appearance or the design of the double glazing window is improved.

Description

  The present invention relates to a glass plate with a spacer, a method for assembling a multi-layer glass window, and a multi-layer glass window.

  Patent Document 1 proposes to renovate the glass window into a multi-layer glass window by arranging a new glass plate in parallel with an existing single-panel glass window constructed in a building. . By using existing glass windows as part of the double-glazed windows, construction costs can be reduced, construction periods are shortened, existing glass windows are not discarded, and sashes are not required to be replaced. There are advantages.

  In a construction method for attaching a new glass plate to an existing glass window, first, one side surface of a spacer in which a desiccant is sealed is bonded to the peripheral edge portion of the glass window with butyl rubber (primary sealing material). Next, a new glass plate is bonded to the other side surface of the spacer with butyl rubber (primary sealing material). Next, a sealing material (secondary sealing material) for maintaining the shape is placed in the gap at the edge between the existing glass window and the new glass plate. In accordance with this construction procedure, a multi-layer glass window was constructed.

  On the other hand, Patent Document 2 discloses a multi-layer glass window in which a through-hole is processed on the surface of a novel glass plate. According to the multilayer glass window, when the new glass plate is bonded to the existing glass window, the air in the air layer between the new glass plate and the glass window can be extracted from the through hole. it can. And the said through-hole is block | closed with the stopper with a nut after the assembly of a multilayer glass window.

Japanese Patent No. 4003908 JP 58-29991 A

  However, the multi-layer glass window disclosed in Patent Document 2 has a problem that the processing cost of the glass plate increases because it is necessary to process through holes in the glass plate. Moreover, since the nut of the plug body which seals the said through-hole is exposed to the surface of a multilayer glass window, the multilayer glass window of patent document 2 had the problem that the design property of a multilayer glass window worsened. .

  The present invention has been made in view of such circumstances, and when forming a multi-layer glass window, it is not necessary to perforate a glass plate, and the design of the multi-layer glass window can be improved. An object of the present invention is to provide a glass plate with a spacer, a method for assembling a multi-layer glass window, and a multi-layer glass window.

  In order to achieve the above object, the present invention comprises a substantially rectangular glass plate and a plurality of spacers installed along the periphery of the four sides of the glass plate. The one side surface of the spacer is bonded to the inside of the peripheral portion of one surface portion of the glass plate via the first butyl rubber, and the second butyl rubber is bonded to the other side surface of the spacer. A glass plate with a spacer, comprising an L-shaped spacer connecting member for connecting the end portions of the spacer at corners of the glass plate, and a through-hole is opened in at least one location of the spacer connecting member. A glass plate with a spacer is provided in which a rectangular inner side and an outer side surrounded by the spacer of the glass plate are communicated with each other through the through hole.

  In order to achieve the above object, the present invention provides a step of preparing the glass plate with spacers of the present invention on site, and the glass plate with spacers on the site is secondly applied to an existing window glass at the site. A bonding step of bonding through the butyl rubber, a sealing step of sealing the through hole of the spacer connecting member with a stopper, and a sealing step of sealing the periphery of the glass plate with the spacer and the window glass with a sealing material And a method for assembling a multi-layer glass window.

  According to the present invention, the through hole is formed in the corner connecting member, and the through hole is sealed with the stopper, so that the processing of the glass plate is unnecessary, and the stopper is hidden in the corner connecting member and the multilayer glass window is hidden. Since it is not exposed, the appearance and design of the multi-layer glass window are improved.

  The plug of the present invention is preferably made of a resin that is impermeable to moisture, and is fitted into the through-hole via a butyl rubber.

  ADVANTAGE OF THE INVENTION According to this invention, the dew condensation of the multilayer glass window resulting from the through-hole of a corner connection member can be prevented.

  Furthermore, the present invention provides a double glazing window characterized by being assembled by the method of assembling a double glazing window of the present invention in order to achieve the above object.

  ADVANTAGE OF THE INVENTION According to this invention, the punching process of a glass plate is unnecessary and can provide the multi-layer glass window with high design property.

  According to the glass plate with a spacer and the method of assembling a multi-layer glass window and the multi-layer glass window of the present invention, it is not necessary to perforate the glass plate when constructing the multi-layer glass window, and the multi-layer glass window The design property of can be improved.

The perspective view of the glass plate with a spacer of 1st Embodiment The principal part enlarged side view which showed the manufacturing process of the glass plate with a spacer shown in FIG. The perspective view which showed the state just before attaching a glass plate with a spacer to a glass window The perspective view which showed the corner key which connects a spacer in a corner The perspective view of the glass plate with a spacer of 2nd Embodiment The principal part expanded sectional view of the glass plate with a spacer shown in FIG. Explanatory drawing with sponge rubber and setting block attached to bag Side view just before attaching a glass plate with a spacer to an existing glass window Explanatory drawing of pressing glass plate with spacer against glass window using roller Front view of double-glazed glass window seen from the indoor side Lower vertical section of multi-layer glass window Upper vertical section of double-glazed glass window Longitudinal sectional view of a multi-layer glass window showing the position of a conventional secondary seal

  Hereinafter, preferred embodiments of a glass plate with a spacer and a method of assembling a multi-layer glass window and a multi-layer glass window according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is an overall perspective view of a glass plate 10 with a spacer according to the first embodiment. FIG. 2 is an enlarged side view of an essential part showing the manufacturing process of the glass plate 10 with a spacer in the order of (A) to (D).

  The glass plate 10 with the spacer is attached on the indoor side opening side of the existing glass window 14 fixed by being fitted into the glass window ridge 12 of the building as shown in the perspective view of FIG. It is a novel glass plate that forms a multi-layer glass window together with the window 14. A method for assembling the multi-layer glass window will be described later. Moreover, the glass plate 10 with a spacer may be attached to the outdoor opening side of the glass window 14.

  As shown in FIG. 2D, the glass plate 10 with a spacer is a rectangular glass plate 16, a non-breathable butyl rubber (first butyl rubber) 18, a spacer 20, a non-breathable butyl rubber (second butyl rubber) 22, And a release paper tape 24. The glass plate 16 is smaller than the glass window 16 shown in FIG.

  As shown in FIGS. 2 (A) and 2 (B), the manufacturing method of the glass plate 10 with spacers is as follows. One side surface of the frame-shaped spacer 20 is located inside the peripheral portion of one surface 16A of the glass plate 16. 20A is bonded by butyl rubber 18. Next, as shown in FIGS. 2C and 2D, butyl rubber 22 is bonded to the other side surface 20B of the spacer 20, and the release paper tape 24 is bonded to the butyl rubber 22 so as to cover the butyl rubber. The release paper tape 24 is removed from the butyl rubber 22 immediately before the glass plate 10 with the spacer is attached to the glass window 14 (see FIG. 5). Thereby, the adhesive force of butyl rubber 22 is maintained until just before attaching glass plate 10 with a spacer to glass window 14.

  By passing through such a manufacturing process, the glass plate 10 with a spacer shown in FIG. 1 is manufactured in a factory. An example of the release paper tape 24 is a PET film. The spacer 20 is preferably black from the viewpoint of design.

  On the other hand, the Low-E film 26 is formed in the region inside the spacer 20 assembled in a frame shape on the one surface 16A of the glass plate 16 in order to improve the heat insulating property and heat shielding property of the multi-layer glass window. Is formed. As the Low-E film 26, a film in which the first oxide film, the Ag film, and the second oxide film are laminated in this order, and the type in which the heat ray shielding film itself is an oxide or a nitride are also applied. it can. In order to cover and protect the Low-E film 26 as well, a protective sheet having the same shape as the glass plate 16 that protects the entire Low-E film 26 instead of the release paper tape 24 may be bonded to the butyl rubber 22. .

  The spacer 20 is made of an aluminum hollow mold, and granular silica gel 28 is sealed in the internal space. Further, a moisture absorption window 30 is opened on the opposing surfaces of the four spacers 20, 20... Arranged along the four sides of the glass plate 16. Further, the moisture absorption window 30 is sealed with an adhesive tape 32. This adhesive tape 32 is removed from the spacer 20 immediately before assembling the glass plate 10 with a spacer to the glass window 14 at the construction site. The adhesive tape is a very small gas-permeable material, so that the silica gel 28 is kept in a state of low moisture adsorption without being exposed to the atmosphere until the glass plate 10 with spacers is assembled to the glass window 14. Is done.

  In FIG. 2A, the butyl rubber 18 is bonded to the glass plate 16 side. However, the spacer 20 may be bonded to the glass plate 16 by bonding the butyl rubber 18 to one side surface 20A of the spacer 20. Further, the butyl rubbers 18 and 22 may be bonded to both sides of the spacer 20 from the beginning. Moreover, in embodiment, although the normal plate glass of a single plate structure is illustrated as the glass plate 16, laminated glass, tempered glass, double strength glass, netted glass, heat ray absorption glass, heat ray reflective glass, etc. may be sufficient. . Furthermore, in order not to damage the glass plate 16 during handling of the glass plate 16, it is preferable to chamfer the corners of the glass plate 16 (for example, C chamfering) and also chamfer the edge of the small edge surface.

  The spacers 20 are connected to each corner by an L-shaped corner key (spacer connecting member) 34 shown in FIG. The corner key 34 includes a main body block 34A and fitting portions 34B and 34B extending in a direction perpendicular to the main body block 34A. The two spacers 20 adjacent to the sawtooth portions of the fitting portions 34B and 34B, The two adjacent spacers 20 and 20 are connected to each other at right angles through the corner key 34 by being inserted into the internal space 20.

  Further, a through hole 34C is opened in the main body block 34A. This through hole 34C is formed from the outer end face 34D to the inner end face 34E of the main body block 34A, and is used as an air vent hole when the glass plate 10 with a spacer is bonded to the glass window 14 shown in FIG. That is, an air layer exists between the glass window 14 and the glass plate 10 with a spacer, but excess air generated in the process of adhering the glass plate 10 with a spacer to the glass window 14 passes through the through hole from the air layer. It is exhausted to the outside through 34C. Thereby, the internal pressure of the air layer becomes atmospheric pressure, and the butyl rubber can be sufficiently adhered with a small load during construction.

  As shown in FIG. 4, the through-hole 34 </ b> C is closed by fitting the cap (plug) 36 after the glass plate 10 with the spacer is bonded to the glass window 14. The cap 36 includes a substantially conical main body portion 36A and a knob portion 36B. An operator grips the knob portion 36B and inserts the main body portion 36A into the through hole 34C. At this time, from the viewpoint of increasing the moisture permeability of the air layer, it is preferable that the main body portion 36A is made of a resin that is impermeable to moisture, and the butyl rubber 38 is applied to the peripheral portion of the main body portion 36A. In addition, after inserting the main body portion 36A into the through-hole 34C, it is preferable to cut the knob portion 36B from the main body portion 36A before placing a secondary seal described later on the peripheral portion of the multilayer glass window. . Furthermore, it is not necessary to provide the through holes 34 </ b> C in all of the four corner keys 34 arranged at the corners of the spacer 20, and only need to be provided in one or two corner keys 34.

  FIG. 5 is a perspective view of the glass plate 40 with a spacer according to the second embodiment. FIG. 6 is an enlarged cross-sectional view of a main part of the glass plate 40 with a spacer. In addition, about the glass plate 40 with a spacer, the same code | symbol is attached | subjected about the same or similar member as the glass plate 10 with a spacer shown in FIG. 1, FIG. 2, and description is abbreviate | omitted.

  The Low-E film 42 formed on one surface 16A of the glass plate 16 of the glass plate with spacer 40 is a heat ray in which a first oxide film, an Ag film, and a second oxide film are laminated in this order. It is a shielding laminated film. Further, in the glass plate with spacers 40, the protective sheet 44 is detachably bonded to the butyl rubber 22 so as to cover one surface 16A of the glass plate 16, that is, to cover the entire surface of the Low-E film 42. .

  The Low-E film 42 is formed on the entire surface of the one surface 16A of the glass plate 16 by sputtering, but the portion formed on the outer peripheral portion of the glass plate 16 to which the butyl rubber 18 is bonded is trimmed and removed. . In addition, the laminated type Low-E film 42 has an advantage that the heat ray shielding film itself is superior to the Low-E film type in which the heat ray shielding film itself is an oxide or nitride, but the heat ray shielding film itself is an oxide. Further, it has a characteristic that it is more easily damaged than a Low-E film of a nitride type.

  Therefore, in order to prevent the Low-E film 42 from being scratched, the entire surface of the Low-E film 42 is covered with the spacer-attached glass plate 40 to which the spacer 20 has been attached in advance at the factory before shipping. A rectangular protective sheet 44 is detachably bonded to the butyl rubber 22. This protective sheet 44 is removed from the butyl rubber 22 immediately before assembling the glass plate 40 with a spacer to the glass window 14 (see FIG. 5) at the construction site. Thereby, the glass plate 40 with a spacer can be conveyed from a factory to a construction site without damaging the Low-E film 42.

  By the way, in the glass plate 40 with a spacer, the desiccant 48 is enclosed in the space 46 sealed by the one surface 16A of the glass plate 16, the protective sheet 44, and the spacer 20.

  The stacked type Low-E film 42 has an Ag film that is weak against moisture (humidity). For this reason, if the Low-E film | membrane 42 is exposed to air | atmosphere, it will deteriorate. For this reason, since the desiccant 48 is enclosed in the space 46, the Low-E film 42 can be protected from moisture, and the durability of the multilayer glass window in which the Low-E film 42 is formed can be improved. it can.

  In addition, after manufacturing the glass plate 40 with a spacer in a factory, when the glass plate 40 with a spacer is stored in a factory for a long period of time, the encapsulating amount of the desiccant 48 is increased. That is, what is necessary is just to adjust the enclosure amount of the desiccant 48 according to the delivery date of the glass plate 40 with a spacer.

  The glass plates 10 and 40 with spacers described above are pre-bonded to the new glass plate 16 with the butyl rubber 18 at the factory, and the butyl rubber 22 is pre-bonded to the spacer 20 and the butyl rubber 22 is released from the mold. It is manufactured by adhering the paper tape 24 and the protective sheet 44 detachably.

  When the glass plates 10 and 40 with spacers are carried from the factory to the construction site shown in FIG. 3 to assemble the multi-layer glass window, the release paper tape 24 and the protective sheet 44 are removed from the butyl rubber 22, and the butyl rubber 22 is removed. It is only necessary to adhere to the existing glass window 14. Therefore, by using the glass plates 10 and 40 with spacers of the embodiment, the problem of adhesion quality, that is, the construction quality can be improved and the trouble at the construction site can be reduced. Windows can be easily assembled at the construction site.

  Next, an example of a method for assembling a multi-layer glass window using the glass plates 10 and 40 with spacers will be described. Here, the glass plate with spacers 10 will be described as an example, and the glass plate with spacers 40 is substantially the same as the method for assembling a multi-layer glass window with the glass plate with spacers 10, and the description thereof will be omitted.

  First, as shown in FIGS. 3 and 7, prismatic sponge rubbers 50, 50... Are attached along the vertical and horizontal ridges 12 and the weight of the glass plate 10 with the spacer is received by the horizontal ridges 12 on the bottom side. The setting blocks 52 and 52 are attached. One or more setting blocks 52 may be provided. In addition, a groove 56 is cut and formed in the sealant material 54 placed on the top horizontal bar 12, and the upper piece 58 </ b> A of the fall-preventing plate 58 is fitted and fixed in the groove 56.

  Next, the release paper tape 24 is peeled off from the glass plate 10 with spacer as shown in FIG. 3 to expose the butyl rubber 22 as shown in the side view of FIG. 8, and the adhesive tape 32 shown in FIG. And the bottom part of this glass plate 10 with a spacer is mounted on the setting blocks 52 and 52, and the upper part of the glass plate 10 with a spacer is engaged with the engagement piece 58B of the fall prevention plate 58 shown in FIG. Then, the glass plate 10 with a spacer is pressed toward the glass window 14, and the glass plate 10 with the spacer is bonded to the glass window 14 with butyl rubber 22.

  Next, in order to ensure adhesion of the butyl rubber 22 to the glass surface, the glass plate 16 is pressed against the glass window 14 by a roller 60 as shown in FIG.

  By the way, in the double-glazed glass window that does not have a through-hole that draws air in the air layer between the existing glass window and the new glass plate, the air in the air layer is in a completely sealed state. . Therefore, after bonding a new glass plate to a glass window, in order to compress (compress) the butyl rubber by a predetermined amount, it is necessary to compress the air confined in the air layer. However, since the force required for the crimping is excessive, it is difficult to do it manually, and it is difficult to use the press in a narrow construction site even if it is desired to crimp using a press. For this reason, it was difficult to apply a sufficient pressure-bonding force to the double-glazed glass window at the site construction, and there was a concern that the moisture-proof performance of butyl rubber could not be fully exhibited. Even if sufficient crimping is possible in the initial stage, deformation (expansion) of the existing glass window or new glass plate due to pressurization at the time of crimping, and peeling of the sealing part and moisture-proof part due to it There was concern.

  When a through hole is formed in a glass plate of a multilayer glass window as in Patent Document 2 and this through hole is sealed with a cap with a nut, air in the air layer can be extracted from the through hole. However, there is a problem that the processing cost is increased because the through-hole is processed in the glass plate, and the design property of the multilayer glass window is deteriorated because the nut is exposed on the surface of the multilayer glass window. It was.

  Therefore, in the glass plate 10 with a spacer according to the embodiment, as shown in FIG. 4, the corner key 34 which is a part of the spacer 20 is provided with a through hole 34C for venting air. Thereby, when attaching the glass plate 10 with a spacer to the glass window 14, even if the glass plate 10 with a spacer is pressure-bonded to the glass window 14, the air in the air layer is exhausted to the outside through the through hole 34 </ b> C. Therefore, it is possible to reduce the pressure in the air layer (equivalent to the external atmospheric pressure) at the time of pressurization during pressure bonding. Accordingly, the butyl rubber 22 can be crimped with a sufficient crushing margin even in the field construction, and at the same time, the glass space between the glass window 14 and the glass plate 10 with the spacer is not expanded, and a satisfactory construction can be performed. The concern about peeling of the moisture-proof part can be solved.

  In addition, since the multi-layer glass window of the embodiment is configured to seal the through hole 34C of the corner key 34 with the main body portion 36A of the cap 36, it is not necessary to perforate the glass plate 16. Moreover, since the main body portion 36A of the cap 36 is hidden behind the corner key 34 and is not exposed from the glass surface of the multilayer glass window, the appearance and design of the multilayer glass window are not deteriorated. As described above, the multilayer glass window of the embodiment can solve the problem of Patent Document 2.

  In addition, the spacer 20 is provided with through holes 34 at a plurality of locations, and each through term 34 is provided with an air valve (not shown), so that the air layer after the glass plate 10 with a spacer is attached to the glass window 14, It is possible to enclose dry air and gas through one through hole 34C and an air valve, and to remove unnecessary internal air through another through hole 34C and the air valve. In addition, even when internal condensation occurs later in the multi-layer glass window, the dry air can be replaced via the through hole 34C and the air valve.

  On the other hand, when the pressure bonding of the butyl rubber 22 by the roller 60 shown in FIG. 9 is completed, the through hole 34C is sealed by the main body portion 36A of the cap 36, and the knob portion 36B is cut from the main body portion 36A.

  Next, a secondary sealing material 62 is placed around the four sides of the glass window 14 and the glass plate 10 with a spacer as shown in the plan view of FIG. To seal the gap. Thereby, the multi-layer glass window 64 is assembled. As the secondary sealant 62, a polysulfide sealant or a silicone sealant having high adhesion to glass is used.

  As shown in FIGS. 11 and 12, the secondary sealing material 62 is placed in a space between the outer peripheral surface of the spacer 20 and the sponge rubber 50 without filling the space with the secondary sealing material 62. In addition, the secondary sealing material 62 is also filled in the space between the small edge of the glass plate 10 with the spacer and the sponge rubber 50. As a result, the secondary sealing material 62 adheres to the inner surface of the existing glass window 14, the inner surface and the facet of the new glass plate 16, and the outer peripheral surface of the spacer 20. Durability is improved.

  As shown in FIG. 13, the conventional assembly method in which the spacer 2 and the new glass plate 3 are attached to the existing glass window 1 having a single plate structure to form the multilayer glass window 4 is the new glass plate 3. Is bonded to the existing glass window 1 with the butyl rubber 5 through the spacer 2, and then a secondary sealing material 7 is placed in the gap between the edge of the new glass plate 3 and the flange 6.

  In the conventional assembly method, the moisture resistance performance of the secondary seal material 7 is simply the thickness of the secondary seal material 7. For this reason, the moisture resistance effect by the secondary sealing material 7 is insufficient, and at the same time, the shape retention performance as the multilayer glass window 4 is insufficient.

  Therefore, in the method for assembling the multi-layer glass window 64 of the embodiment, as shown in FIGS. The secondary sealing material 62 was filled, and the secondary sealing material 62 was also filled in the space between the small edge of the glass plate 10 with the spacer and the sponge rubber 50. As a result, the secondary sealing material 62 adheres to the inner side surface of the existing glass window 14, the inner side surface and the edge surface of the new glass plate 16, and the outer peripheral surface of the spacer 20, so that the quality with excellent durability is achieved. A good multi-layer glass window can be assembled at the construction site.

  Moreover, according to FIG. 11, FIG. 12, since the butyl rubbers 18 and 22 which are primary sealing materials and the secondary sealing material 62 contact, the deformation | transformation of the glass window 14 and the glass plate 16 is suppressed, and a secondary sealing material is used. Since 62 protects the butyl rubbers 18 and 22, the durability of the multilayer glass is further enhanced.

  Further, the multilayer glass window 64 of the embodiment is around the secondary sealing material 62, and an elastic member such as sponge rubber 50 is disposed between the glass plate with spacer 10 and the flange 12. For this reason, even when an interlayer deformation occurs in the multi-layer glass window 64 during an earthquake, the elastic member can absorb the movement caused by the locking of the glass plate 10 with the spacer, so that the structure is desirable in terms of the interlayer deformation tracking performance.

  In the conventional configuration, the new glass plate has its own weight supported only by the secondary sealing material. Therefore, a long-term load is applied to the secondary sealing material, which is not a desirable configuration in consideration of the durability of the secondary sealing material.

  In order to solve this problem, in the multi-layer glass window 64 of the embodiment, the setting blocks 52 and 52 are installed at the lower edge of the lower glass plate 10 with the spacer, so that the secondary sealing material 62 has the spacer. The load due to the weight of the glass plate 10 is not applied. Since the setting block 52 does not require the secondary sealant 62 to support the own weight of the glass plate 10 with the spacer, it is possible to deal with thick glass and large glass. Here, the setting block 52 is desirably an elastic member whose material is harder than the sponge rubber 50, and is preferably made of rubber.

  Furthermore, the glass plate 10 with a spacer is securely attached until the secondary sealant 62 is cured by providing a tilt-preventing plate 58 that prevents the glass plate 10 with a spacer from falling over the glass plate 10 with a spacer. It can be fixed at a desired position.

  On the other hand, the plate thickness of the glass plate 16 is preferably 75% or more with respect to the plate thickness of the existing glass window 14.

  DESCRIPTION OF SYMBOLS 10 ... Glass plate with spacer, 12 ... Glass, 14 ... Glass window, 16 ... Glass plate, 18 ... Butyl rubber, 20 ... Spacer, 22 ... Butyl rubber, 24 ... Release paper tape, 26 ... Low-E membrane, 28 ... Silica gel, 30 ... Hygroscopic window, 32 ... Adhesive tape, 34 ... Corner key, 36 ... Cap, 38 ... Butyl rubber, 40 ... Glass plate with spacer, 42 ... Low-E film, 44 ... Protective sheet, 46 ... Space, 48 ... Desiccant , 50 ... sponge rubber, 52 ... setting block, 54 ... sealant material, 56 ... groove, 58 ... anti-falling plate, 60 ... roller, 62 ... secondary sealant, 64 ... multi-layer glass window

Claims (4)

A substantially rectangular glass plate and a plurality of spacers installed along the periphery of the four sides of the glass plate, arranged in a substantially rectangular shape by connecting the spacers,
With a spacer in which one side surface of the spacer is bonded via a first butyl rubber inside a peripheral portion of one surface portion of the glass plate, and a second butyl rubber is bonded to the other side surface of the spacer A glass plate,
An L-shaped spacer connecting member for connecting the end portions of the spacer at the corners of the glass plate, and a through hole is opened in at least one location of the spacer connecting member, and the glass plate is inserted through the through hole. A glass plate with a spacer, wherein the inner side and the outer side of a rectangular shape surrounded by the spacer are communicated. Preparing the glass plate with a spacer according to claim 1 on site;
Adhering step of adhering the glass plate with spacers at the site via a second butyl rubber to an existing window glass at the site;
A sealing step of sealing the through hole of the spacer connection member with a stopper;
A sealing step of sealing the periphery of the glass plate with the spacer and the window glass with a sealing material;
A method for assembling a multi-layer glass window.   The method for assembling a multi-layer glass window according to claim 2, wherein the stopper is made of a resin that is impermeable to moisture and is fitted into the through-hole through butyl rubber.   A multi-layer glass window assembled by the multi-layer glass window assembling method according to claim 2 or 3.

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