JP2015143420A - Multiple glass sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multiple glass sash, easy in assembling, capable of maximally exhibiting heat insulation performance, and capable of reducing weight by thinning a thickness.SOLUTION: A multiple glass sash 1 is arranged by separately placing five glass panes 10, 11, 12A, 12B and 12C, and argon gas smaller in heat conductivity than air is sealed in a divided hollow layer 62 of four layers. The glass pane 10 and the glass pane 11 are separately placed by a frame body 13 in the periphery thereof, and the three intermediate glass panes 12A, 12B and 12C are held by a three-row groove part 22 provided in the frame body 13. The glass pane 10 and the glass pane 11 are formed of chemical tempered glass having a thickness of 2 mm-3 mm, and the three intermediate glass panes 12A, 12B and 12C are formed of chemical tempered glass having a thickness of 1 mm-2 mm, and a thickness of the divided hollow layer 62 of four layers is set to 13 mm-17 mm.

Description

  The present invention relates to a multiple glass shoji provided with five glass plates spaced apart.

When using window glass as the outer wall of a building, in order to increase the efficiency of indoor air conditioning, the prescribed heat insulation performance (heat transmissivity: U value (JIS R3107: 1998), unit: W / m ² · K) is required. For this reason, in recent years, a double-glazed glass having a higher heat insulation performance (lower U value) than a single glass plate tends to be used as a glass plate of a window glass.

  In the double-glazed glass for window glass, Patent Document 1 discloses a double-glazed shoji that is configured with an upper and lower ridge and left and right vertical folds housed between two glass plates arranged at intervals. Yes.

  Further, Patent Document 2 discloses a double-layer glass shoji using double-layer glass that is formed inside the peripheral portion of the two glass plates so that a concave portion is formed inside the peripheral portion between the two glass plates. Two glass plates are arranged via a spacer, a double-layer glass is formed so that a hollow layer is formed between the two glass plates, and a holding frame is provided in the recessed portion at the peripheral edge of the double-layer glass. A multi-layer glass shoji which is attached is disclosed.

  Furthermore, Patent Document 3 discloses a multilayer glass in which three glass plates are spaced apart from each other by a spacer to form two hollow layers.

  According to the double-glazed glass of Patent Document 3, since two hollow layers are provided by three glass plates, it is compared with the double-layer glass shoji of Patent Documents 1 and 2 having only one hollow layer. And has an advantage of high heat insulation performance.

Japanese Utility Model Publication No. 60-89394 JP 2000-356075 A JP 2010-6684 A

  However, the multi-layer glass described in Patent Document 3 is manufactured by arranging spacers between three glass plates, and using the spacers on the glass plates by known sealing materials (primary seal and secondary seal). There has been a problem that the work of sealing has to be performed, the number of parts and the number of assembling steps are increased, and the entire thickness of the multilayer glass is increased.

  On the other hand, based on the double-glazed glass of Patent Document 3, when a double-glazed glass having three or more hollow layers is constituted by four or more glass plates, the heat insulating performance is higher than that of the double-glazed glass of Patent Document 3. Will also improve.

  However, it is difficult to manufacture a multilayer glass with four or more glass plates, and even if it can be manufactured, the thickness of the multilayer glass becomes unnecessarily thick, resulting in a heavy load and workability. There was a problem of being bad.

  The present invention has been made in view of such circumstances, and provides a multi-glass shoji that can be easily assembled, can exhibit its heat insulation performance to the maximum, and is thin and lightweight. For the purpose.

  The multiple glass shoji of the present invention is configured by separating five glass plates using a frame body in which a spacer portion and a collar portion are integrated. Therefore, the shoji of the present invention is not a multi-layer glass shoji but a multiple glass shoji (or a 5-layer glass shoji).

  In one embodiment of the present invention, in order to achieve the above object, a first glass plate and a second glass plate are separated by a frame around the first glass plate and a hollow layer is formed. The hollow layer is divided into four divided hollow layers by being sealed to the frame body around the periphery and arranged with three intermediate glass plates spaced apart from the hollow layer. Are provided with three rows of holding portions that hold at least a part of the peripheral portion of the three intermediate glass plates at an interval, and the first glass plate and the second glass plate have a thickness. 2 mm to 3 mm chemically tempered glass, the three intermediate glass plates are chemically tempered glass having a thickness of 1 mm to 2 mm, the thickness of the four divided hollow layers is 13 mm to 17 mm, 4 Argon gas is sealed in the divided hollow layer Providing multiple glass shoji characterized.

  According to the multiple glass shoji of one aspect of the present invention, it is a multiple glass shoji having a configuration in which five glass plates that are assumed to be able to exhibit the maximum heat insulation performance are arranged apart from each other, and is more heated than air. Argon gas with low conductivity is enclosed in four divided hollow layers to further improve the heat insulation performance.

  Moreover, according to the multiple glass shoji of 1 aspect of this invention, the 1st glass plate and the 2nd glass plate are spaced apart by the frame body in the circumference | surroundings, and it is in the holding | maintenance part of 3 rows provided in the frame body. Since it is configured to hold three intermediate glass plates, the number of parts is reduced and the number of assembly steps is reduced as compared to a double-layer glass provided with a spacer and a sealing material (primary seal, secondary seal). Can be easily assembled.

  Furthermore, according to the multiple glass shoji of one aspect of the present invention, the first glass plate and the second glass plate are chemically tempered glass having a thickness of 2 mm to 3 mm, and the three intermediate glass plates are 1 mm thick. It is set to chemically tempered glass of ˜2 mm, and the thickness of the four divided hollow layers is 13 mm to 17 mm.

  Thereby, according to the multiple glass shoji of one aspect of the present invention, since chemically tempered glass is used for all the glass plates, the strength is maintained at the same level as that of the thick non-tempered glass even if it is a thin plate. it can. Moreover, since the thickness of the four divided hollow layers is 13 mm to 17 mm, the heat insulation performance can be sufficiently exhibited.

  As described above, according to the multiple glass shoji of one aspect of the present invention, although it is provided with five glass plates, it uses a thin chemically tempered glass, and the thickness of the four divided hollow layers also provides heat insulation performance. Since the thickness is set so that it can be sufficiently exhibited, the entire thickness can be suppressed to 59 mm to 80 mm. Therefore, the weight can be reduced as compared with the multilayer glass having five non-tempered glass plates.

  In one embodiment of the present invention, the first glass plate and the second glass plate are preferably provided with a low emission film.

  According to the multiple glass shoji of one embodiment of the present invention, the heat insulating performance can be further enhanced by the low radiation film.

  In one embodiment of the present invention, it is preferable that at least a part of the frame body on the hollow layer side is provided with a storage portion that stores a desiccant.

  According to the multiple glass shoji of one aspect of the present invention, since the argon gas enclosed in the hollow layer can be always kept in a dry state by the desiccant, the dew condensation generated on the five glass plates constituting the multi glass shoji is prevented. Preventing, and thus extending the service life of the multiple glass shoji.

  ADVANTAGE OF THE INVENTION According to this invention, the multiple glass shoji which can be assembled easily and can exhibit the heat insulation performance to the maximum, and was thin and weight reduction was achieved can be provided.

Schematic front view of multiple glass shoji of embodiment Schematic perspective view including a partial cross section of the multiple glass shoji shown in FIG. A longitudinal sectional view showing an outline of a circle A portion in FIG. Schematic longitudinal cross-sectional view of the frame used for the multiple glass shoji of embodiment Longitudinal sectional view of a multiple glass shoji according to an embodiment applied to a sliding window Cross section of multiple glass shoji in the sliding window shown in FIG. 5 is a longitudinal sectional view of the sliding window shown in FIG. 5 attached to the opening of the house wall. Cross-sectional view of FIG.

  Next, the multiple glass shoji of the present invention will be specifically described based on the drawings of FIGS.

  Note that the drawings illustrate preferred embodiments of the present invention, and the present invention is not limited to the illustrated drawings and the description thereof.

  1 is a front view of a multiple glass shoji 1 according to the embodiment, FIG. 2 is a schematic perspective view including a partial cross section of the multiple glass shoji 1 shown in FIG. 1, and FIG. 3 is a portion of a circle A in FIG. It is sectional drawing which showed the outline of. Moreover, the frame 13 used for the multiple glass shoji 1 shown in FIG. 1 is shown by FIG.

[Overall configuration of multiple glass shoji 1]
1 and 2, reference numeral 10 is a glass plate (first glass plate), reference numeral 11 is a glass plate (second glass plate), reference numeral 3 is a frame on the upper end side of the multiple glass shoji 1, and reference numeral 4 is A frame body on the side end side of the multiple glass shoji 1, reference numeral 5 is a frame body on the lower end side of the multiple glass shoji 1 (in the present specification, the frame bodies 3, 4, and 5 are simply referred to as a frame body 13). Reference numerals 12A, 12B, and 12C denote three intermediate glass plates. The three intermediate glass plates 12 </ b> A, 12 </ b> B, and 12 </ b> C are disposed between the glass plates 10 and 11 separated by the frame body 13 so as to be separated from the glass plates 10 and 11.

  The glass plate 10 and the glass plate 11 are spaced apart by a frame 13 around the periphery thereof, whereby a hollow layer 60 is formed between the glass plate 10 and the glass plate 11. Further, the hollow layer 60 is sealed by the frame 13 at the periphery, and three intermediate glass plates 12A, 12B, and 12C are spaced apart from each other in the hollow layer 60 as shown in FIG. The layer 60 is divided into four divided hollow layers 62.

<Frame 13>
As shown in FIGS. 3 and 4, the frame 13 includes a spacer portion 18 and a flange portion 21.

  The spacer portion 18 is connected to the inner surface portion 14 and the outer surface side portion 15 that maintain the distance between the glass plate 10 and the glass plate 11, and is in contact with the inner surfaces of the glass plates 10 and 11. The side portions 16 and 16 and the space portions (storage portions) 17 and 17 for storing the desiccant 64 are configured.

  The eaves part 21 is a bent eaves part connected to the inner surface of the peripheral part of the glass plates 10 and 11 and the end face parts of the glass plates 10 and 11 connected to the eaves parts 19 and 19. 20 and 20.

  The spacer portion 18 and the flange portion 21 are integrally formed of a frame body forming material. The integral molding means that the frame forming material is molded by an integral molding method such as an extrusion molding method, a co-extrusion molding method, or an injection molding method.

  As the frame forming material, a synthetic resin material or an aluminum material is preferably used. The synthetic resin material for forming the frame is preferably a hard vinyl chloride resin material, an acrylonitrile / styrene resin material, and a material in which a glass fiber material is added, but is not limited to these thermoplastic synthetic resin materials. Various thermoplastic synthetic resin materials can also be used.

  In addition, the frame forming material is not limited to one type, and may be a composite structure using a plurality of types of materials. For example, it may be a composite structure frame made of different synthetic resin materials partially by different co-extrusion molding methods, or a composite structure frame made of a synthetic resin material and an aluminum material. In the case of this composite structure, it is only necessary that the composite structure is integrally formed of any one kind of frame forming material. The integrally molded frame 13 may be partially or entirely joined with different synthetic resin materials and / or metal materials. In particular, the frame 13 in which the spacer portion 18 and the flange portion 21 are integrally formed of a hard vinyl chloride resin material or acrylonitrile / styrene resin material is excellent in heat insulation when used as the multiple glass shoji 1 and is integrally molded. Is easy, durable and inexpensive.

  The frame 13 is provided with three rows of groove portions (holding portions) 22 on the inner surface portion 14 of the spacer portion 18 in order to arrange the three intermediate glass plates 12A, 12B, 12C. The three rows of groove portions 22 are formed in parallel along the longitudinal direction of the spacer portion 18 so that the three intermediate glass plates 12A, 12B, and 12C are arranged in parallel. Further, on both sides of the inner surface of the groove portion 22, lip portions 23 and 23 made of an elastic material are provided for supporting the end portions of the intermediate glass plates 12A, 12B, and 12C. Further, a base portion 29 made of an elastic material or a cushion material is provided at the bottom of the groove portion 22 to protect and position the end surface portions of the intermediate glass plates 12A, 12B, and 12C.

  The lip portions 23, 23 are provided in different levels so that the end portions of the intermediate glass plates 12A, 12B, 12C can be easily inserted into the groove portion 22, but may be at the same level. Further, in this example, the space portion 17 is divided into four left and right by forming the groove portion 22, but the space portion 17 divided into four at the lower portion of the spacer portion 18 may be communicated.

  The horizontal reed part 19 of the eaves part 21 is installed in the peripheral part of the glass plates 10 and 11 spaced apart. Further, the bent flange portions 20 and 20 are bent from the terminal portions of the lateral flange portions 19 and 19 opposite to the side portions 16 and 16 of the spacer portion 18 to the glass plate 10 and 11 side, and extend in the lateral direction. It is a part which protects and supports the end surface part of the glass plates 10 and 11. The bent flange portions 20 and 20 are portions that prevent the glass plates 10 and 11 from falling off, and the length of the bent portions of the bent flange portions 20 and 20 is approximately the length of the glass plates 10 and 11. Alternatively, a length that slightly protrudes outside the glass plates 10 and 11 is preferable.

  The horizontal flange portion 19 of the flange portion 21 and the side portions 16 and 16 of the spacer portion 18 are continuous surfaces. Thereby, if the color tone, surface state, etc. of the recumbent part 19 and the side parts 16 and 16 are considered, the recumbent part 19 and the side part 16 will become the design surface in the peripheral part of the multiple glass shoji 1.

  A thin plate portion 35 is preferably provided on the inner surface portion 14 of the spacer portion 18. Ventilation holes are formed in the thin plate portion 35, and the dried state of the divided hollow layer 62 is maintained by the desiccant 64 through the formed ventilation holes.

  3 and 4, the structure of the frame body 13 has been described by taking the frame body 5 on the lower end side as an example, but the structure of the frame bodies 3 and 4 is basically the same as the structure of the frame body 5.

<Divided hollow layer 62>
Argon gas having a thermal conductivity smaller than that of air is enclosed in the four divided hollow layers 62, so that the heat insulating performance of the multiple glass shoji 1 is enhanced. Further, the argon gas is dried by the desiccant 64 stored in the space portion 17 of the spacer portion 18. As a result, condensation of the glass plates 10 and 11 and the intermediate glass plates 12A, 12B, and 12C is prevented. Furthermore, the thickness of the division | segmentation hollow layer 62 is set to 13 mm-17 mm which is the thickness which can fully exhibit the heat insulation performance. That is, the thickness of the divided hollow layer 62 is set so as to have a width of 2 mm before and after the optimum value (15 mm) at which the heat insulation performance can be maximized.

<Glass plates 10, 11>
The glass plates 10 and 11 are rectangular flat glass plates, and each thickness is in the range of 2 mm to 3 mm in order to reduce the weight. The dimensions of the glass plates 10 and 11 are the same or substantially the same. Dimensions.

  Moreover, the glass plates 10 and 11 may have different thicknesses as long as they are within the thickness range. Furthermore, the glass plates 10 and 11 are chemically strengthened glass having sufficient strength even if the thickness is reduced. That is, by making the glass plates 10 and 11 chemically strengthened glass, even if the thickness is 2 mm to 3 mm, impact resistance performance and wind pressure resistance performance can be obtained.

  A chemically strengthened glass plate is a glass plate containing a Na component or a Li component such as soda lime silicate glass immersed in a molten salt such as potassium nitrate, and has a small atomic diameter Na ion and / or Alternatively, the strength is increased by replacing the Li ions with K ions having a large atomic diameter present in the molten salt to form a compressive stress layer on the surface layer of the glass plate. According to the chemically strengthened glass, even a glass plate having a thickness of 2 mm or less has a sufficiently high breaking strength. Therefore, if a chemically strengthened glass plate is used as the glass plates 10 and 11, even if the glass plates 10 and 11 are thin plates having a thickness of 2 mm to 3 mm, sufficient strength as the glass plates 10 and 11 disposed on the outside. Can guarantee.

  Further, a low radiation film 66 such as a Low-E (Low-Emissivity) film is formed on the inner surface of the glass plates 10 and 11 facing the divided hollow layer 62. That is, the glass plates 10 and 11 are configured as Low-E glass.

With Low-E glass, a low radiation film mainly composed of tin oxide (SnO ₂ ) or a low radiation film mainly composed of silver (Ag) is formed on the surface of a glass plate using a sputtering apparatus or the like. It has a function of reducing the emissivity of thermal energy by infrared rays. That is, Low-E glass has a performance that hardly allows heat to pass through, and thus has high heat shielding properties and heat insulation properties. In addition, the low-emission film mainly composed of silver has the property of being easily oxidized by moisture in the air. Therefore, when it is used for multiple glass shoji, it should be formed on the side facing the sealed hollow layer. Is preferred. In addition, the low-emission film mainly composed of tin oxide has lower heat ray reflection performance and lower heat-shielding performance than the low-emission film mainly composed of silver, but compared with the low-emission film mainly composed of silver. Thus, there is an advantage that it is difficult to oxidize and is not easily damaged because of high mechanical durability. Therefore, a low radiation film mainly composed of tin oxide can be provided on the outer surfaces of the glass plates 10 and 11.

<Intermediate glass plates 12A, 12B, 12C>
The intermediate glass plates 12A, 12B, and 12C are rectangular flat glass plates, and the thicknesses of the intermediate glass plates 12A, 12B, and 12C are in the range of 1 mm to 2 mm in order to reduce the weight. The dimensions of the intermediate glass plates 12A, 12B, and 12C are as follows. Are the same or substantially the same size.

  The intermediate glass plates 12A, 12B, and 12C may have different thicknesses as long as they are within the thickness range. Further, the intermediate glass plates 12A, 12B, and 12C are chemically strengthened glass having sufficient strength even if the thickness is reduced, similarly to the glass plates 10 and 11. For example, chemically tempered glass having a thickness of 1 mm to 2 mm has a static bending strength equivalent to that of non-tempered glass such as float glass having a thickness of 3 mm to 6 mm.

  The intermediate glass plates 12 </ b> A, 12 </ b> B, and 12 </ b> C are preferably in a similar rectangular shape with smaller dimensions than the glass plates 10 and 11 so that they can be inserted into the groove portion 22 of the frame 13. Further, the intermediate glass plates 12A, 12B, and 12C may be provided with a low radiation film.

<Additional configuration of multiple glass shoji 1>
In the multiple glass shoji 1 according to the embodiment, the side plate 16 and the recumbent portion 19 of the frame 13 face each other with the glass plates 10 and 11 by the adhesive layer 30 at the portion where the glass plates 10 and 11 face each other. The hermeticity of the divided hollow layer 62 that is bonded and formed between the glass plates 10 and 11 is maintained.

  Further, as shown in FIG. 4, a groove portion 24 is formed between the pair of lateral flange portions 19, 19 on the left and right, and the shape of the longitudinal section of the flange portion 21 is an inverted U shape. The groove portion 24 can be provided with a door, a door support member, a retaining member, and other shoji functional members. The shoji functional members are concealed from the outdoor side of the multiple glass shoji and the indoor side by the frame 13. It will be in the state.

  The height of the side part 16 is preferably in the range of 5 mm to 15 mm, and the height of the recumbent part 19 is preferably in the range of 15 mm to 50 mm.

  A concave portion 26 is provided in a part of the glass plate side surface of the side edges 16 and 16. At the time of manufacturing the multiple glass shoji 1, the adhesive injected and applied between the glass plates 10, 11 and the side part 16 accumulates in the recess 26, so that the adhesive is divided hollow layer 62 of the side part 16. The thickness of the adhesive layer 30 is ensured without protruding to the side.

  A concave portion 27 is also provided on a part of the surface of the reed portion 19 on the glass plate side. At the time of manufacturing the multiple glass shoji 1, the adhesive injected and applied between the glass plate 2 and the horizontal flange 19 of the flange 21 accumulates in the recess 27, so that the adhesive is outside the horizontal flange 19 ( That is, the thickness of the adhesive layer 30 is ensured without protruding to the end surfaces of the glass plates 10 and 11.

  An end protection cover 40 shown in FIG. 4 may be disposed in the groove 24. Various end protection covers 40 can be used as long as the groove 24 can be closed at the end face of the multiple glass shoji 1. The end protection cover 40 may have a structure that supports the end surfaces of the glass plates 10 and 11.

  The end protection cover 40 includes a bottom surface portion 41 that closes the bottom surface of the groove portion 24 in the longitudinal direction of the end surface of the multiple glass shoji 1, and guide protrusions 28 provided on the lower side of the lateral flange portions 19 and 19 on the groove portion 24 side, 28, guide rib portions 42 and 42, which are provided so as to be slidable and mounted in the lateral direction, and whose tips are bent in an L shape, and a bent portion 43 that comes into contact with the outer end surface portions of the glass plates 10 and 11, 43. The illustrated example is the end protection cover 40 of the slide mounting method example, but is not limited thereto, and may be configured to be mounted to the groove portion 24 from the lower direction in FIG. The structure corresponding to the mounting method may be used.

  On the lower side of the multiple glass shoji 1, in the case of a sliding door, a shoji door for the shoji is mounted, so the end protection cover 40 may be provided in a portion excluding the door. Moreover, it is preferable to arrange | position the edge part protection cover 40 also in the upper side of the multiple glass shoji 1, and a side side. Even if the frame 13 is used on each of the four sides of the multiple glass shoji 1 having a rectangular glass plate, the end protection cover 40 is disposed in the groove 24 of the frame 13 on the upper side and the side. The groove portion 24 can be closed and put to practical use, which is effective in reducing the number of parts assembled in the multiple glass shoji 1.

  In addition, when the opening / closing method of the multiple glass shoji 1 is a swing method, a door is not required, so that the lower side, the upper side, the left side, and the right side can have the same structure.

  As an adhesive used for bonding between the glass plates 10 and 11 and the side portions 16 and 16, so that excellent adhesive strength, moisture permeation prevention, durability, a good bonding surface, and the like can be obtained. In consideration of simplification of the bonding process between the glass plates 10 and 11 and the spacer portion 18, an appropriate adhesive is used.

  For example, when the side portions 16 and 16 are made of a hard vinyl chloride resin material or an acrylonitrile / styrene resin material, a silicone adhesive, a polysulfide adhesive, a butyl adhesive, a hot melt adhesive is used as an adhesive. Agents, epoxy adhesives, double-sided adhesive tapes, double-sided adhesive tapes and the like are preferable.

  Moreover, as an adhesive used for bonding between the glass plates 10 and 11 and the recumbent portions 19 and 19, it is possible to obtain excellent bonding strength, moisture permeation prevention, durability, a good bonding surface, and the like. In addition, an appropriate adhesive is used in consideration of simplification of the bonding process between the glass plates 10 and 11 and the horizontal flange portions 19 and 19. For example, when the recumbent portions 19 and 19 are made of a hard vinyl chloride resin material or an acrylonitrile / styrene resin material, the adhesive may be a silicone adhesive, a polysulfide adhesive, a butyl adhesive, or a hot melt adhesive. Agents, epoxy adhesives, double-sided adhesive tapes, double-sided adhesive tapes and the like are preferable.

  The adhesive used for bonding between the glass plates 10 and 11 and the side portion 16 and the adhesive used for bonding between the glass plates 10 and 11 and the recumbent portion 19 are of the same type. Material is used. Thereby, the number of adhesion steps in the attachment step is simplified. Depending on the performance required for the multiple glass shoji 1, different types of adhesives may be used. Further, the adhesive used may be a transparent adhesive, or an adhesive having an appropriate color tone according to black or other requirements.

<Example of multiple glass shoji 1 applied to sliding window>
FIG. 5 is a longitudinal sectional view of the multiple glass shoji 1a and 1b according to the embodiment applied to the sliding window, and FIG. 6 is a transverse sectional view of the multiple glass shoji 1a and 1b in the sliding window shown in FIG. is there.

  As shown in FIG. 5, a door wheel 44 is rotatably mounted in the groove portion 24 a of the frame body 5 via a door wheel mounting member 45, and a multiple glass shoji is provided along a running rail 47 provided on the lower side of the window frame 46. 1a and 1b travel.

  An end protection cover 40a is disposed between the left and right lower end portions 48 of the door pulley mounting member 45 and the lower end of the lateral flange portion 19, and the travel rail 47 on the travel rail 47 side of the end protection cover 40a. The fin part 49 which contacts with is provided.

  The left and right door roller mounting members 45 are illustrated with different structures. Further, the traveling rail 50 provided on the upper side of the window frame 46 is accommodated in the groove 24 b of the frame 3. Further, an end protection cover 40b is attached to the groove 24b. The end protection cover 40 b is provided with a recess 52, and the recess 52 is provided with fins 51 and 51. The fins 51, 51 are brought into contact with the travel rail 50 with elasticity from both sides of the travel rail 50.

  As shown in FIG. 6, the end protection cover 40 c attached to the groove portion 24 c of the frame body 4 is provided with an airtight material 53 that contacts the summing portion of the multiple glass shoji 1 a and 1 b. In addition, an airtight material 54 is provided at the portion of the window frame 46 that meets the side edges of the multiple glass shoji 1a and 1b.

  Hereinafter, the characteristic of the multiple glass shoji 1 of embodiment is demonstrated.

[First feature]
As shown in FIG. 4, the multiple glass shoji 1 has a configuration in which five glass plates 10, 11, 12 A, 12 B, and 12 C that are assumed to be able to exhibit the heat insulation performance to the maximum are arranged apart from each other. In addition, argon gas having a thermal conductivity smaller than that of air is sealed in the four divided hollow layers 62 to further improve the heat insulation performance.

  Moreover, according to the multiple glass shoji 1, the glass plate 10 and the glass plate 11 are separated by the frame 13 in the circumference | surroundings, and three intermediate | middle glass plates 12A are provided in the three rows of groove parts 22 provided in the frame 13. FIG. , 12B and 12C are configured to be held, so that the number of parts is reduced and the number of assembling steps is reduced as compared to the double-layer glass of Patent Document 3 provided with a spacer and a sealing material (primary seal, secondary seal). So it can be manufactured easily.

  Furthermore, according to the multiple glass shoji 1, the glass plate 10 and the glass plate 11 are chemically strengthened glass having a thickness (t1) of 2 mm to 3 mm, and the three intermediate glass plates 12A, 12B, and 12C are formed with a thickness (t2). ) Chemically strengthened glass of 1 mm to 2 mm, and the thickness (t3) of the four divided hollow layers 62 is 13 mm to 17 mm.

  Thereby, according to the multiple glass shoji 1, since chemically tempered glass was used for all the glass plates 10, 11, 12A, 12B, and 12C, the strength of the thin glass plate was reduced to that of a thick non-tempered glass. Can be held at the same level. Moreover, since the thickness (t3) of the four divided hollow layers 62 is set to 13 mm to 17 mm, the heat insulating performance can be sufficiently exhibited.

  As described above, according to the multiple glass shoji 1 of the embodiment, although it includes the five glass plates 10, 11, 12A, 12B, 12C, it uses a thin chemically tempered glass and has four layers. Since the thickness of the division | segmentation hollow layer 62 was also set to the thickness which can fully exhibit the heat insulation performance, the whole thickness (T) can be restrained to 59 mm-80 mm. Therefore, the weight can be reduced as compared with the multilayer glass having five non-tempered glass plates. Moreover, the multiple glass shoji 1 of embodiment can be constructed as a window in the window opening part of the common wall of the Japanese house whose wall thickness is 150 mm. 7 is a longitudinal sectional view in which the sliding window shown in FIG. 5 is attached to the window opening 70 of the wall 68 of the house via the window frame 46, and FIG. 8 is a transverse sectional view of FIG. 7 and 8, the same or similar members as those shown in FIGS. 5 and 6 are denoted by the same reference numerals, and the description thereof is omitted. The wall 68 has a thickness of 150 mm.

  The multiple glass shoji 1a is arranged on the indoor side of the house, and the multiple glass shoji 1b is arranged on the outdoor side.

  The upper side of the window frame 46 is fixed to the lintel 74 by a plurality of wood screws 72 and nails 73. The lower side of the window frame 46 is fixed to the window base 76 with a plurality of wood screws 72 and nails 73. Further, the vertical sides on both sides of the window frame 46 are fixed to a pair of pillars 78 by a plurality of wood screws 72 and nails 73. Reference numeral 80 denotes an outer wall of the house, and reference numeral 82 denotes a gypsum board.

  As shown in FIG. 7 and FIG. 8, by limiting the thickness of the multiple glass shoji 1a and 1b to 59 mm to 80 mm, the multiple glass shoji 1a and 1b are used as a sliding window in the window opening 70 having a wall thickness of 150 mm. Can be constructed.

[Second feature]
The low radiation film 66 is provided on the glass plates 10 and 11.

  Thereby, according to the multiple glass shoji 1 of embodiment, the heat insulation performance can further be improved by the low radiation film | membrane 66. FIG.

[Third feature]
A space 17 for storing the desiccant 64 is provided in at least a part of the frame 13 on the hollow layer side.

  Thereby, according to the multiple glass shoji 1 of embodiment, since the argon gas enclosed with the division | segmentation hollow layer 62 can always be kept dry with the desiccant 64, the five glass plates which comprise the multiple glass shoji 1 10, 11, 12A, 12B, and 12C are prevented from dew condensation, thus extending the service life of the multiple glass shoji 1.

  DESCRIPTION OF SYMBOLS 1, 1a, 1b ... Multiple glass shoji, 3 ... Frame on the upper end side, 4 ... Frame on the side end side, 5 ... Frame on the lower end side, 10, 11 ... Glass plate, 12A, 12B, 12C ... Intermediate glass Plate 13, Frame body 14, Inner surface portion 15, Outer surface side portion 16, Side portion 17, Space portion 18, Spacer portion 19, Reclining portion 20, Bending collar portion 21, Butting portion , 22 ... groove part, 23 ... lip part, 24, 24a, 24b, 24c ... groove part, 26 ... concave part, 27 ... concave part, 28 ... guide ridge, 29 ... base part, 30 ... adhesive layer, 35 ... thin plate part, 40, 40a, 40b, 40c ... end protection cover, 41 ... bottom face part, 42 ... guide rib part, 43 ... bent part, 44 ... door wheel, 45 ... door wheel mounting member, 46 ... window frame, 47 ... traveling rail, 48 ... Lower end portion of door pulley mounting member, 49 ... fin portion, 50 ... traveling rail, 51 ... fin portion, 52 Recess, 53, 54 ... Airtight material, 60 ... Hollow layer, 62 ... Divided hollow layer, 64 ... Desiccant, 66 ... Low radiation film, 68 ... Wall, 70 ... Opening for window, 72 ... Wood screw, 73 ... Nail, 74 ... Magusa, 76 ... Window, 78 ... Column, 80 ... Outer wall, 82 ... Gypsum board

Claims (3)

The first glass plate and the second glass plate are separated by a frame around the first glass plate to form a hollow layer, and the hollow layer is sealed to the frame around the periphery, and the hollow layer The three intermediate glass plates are spaced apart from each other, whereby the hollow layer is divided into four divided hollow layers,
The frame body is provided with three rows of holding portions that hold at least a part of the peripheral portion of the three intermediate glass plates at an interval,
The first glass plate and the second glass plate are chemically tempered glass having a thickness of 2 mm to 3 mm, and the three intermediate glass plates are chemically tempered glass having a thickness of 1 mm to 2 mm. A multi-glass shoji, wherein the divided hollow layer has a thickness of 13 mm to 17 mm, and argon gas is sealed in the four divided hollow layers.   The multiple glass shoji according to claim 1, wherein the first glass plate and the second glass plate are provided with a low radiation film.   The multiple glass shoji according to claim 1 or 2, wherein at least a part of the frame body on the hollow layer side is provided with a storage portion for storing a desiccant.

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