WO2016098831A1

WO2016098831A1 - Window

Info

Publication number: WO2016098831A1
Application number: PCT/JP2015/085275
Authority: WO
Inventors: 横山　和義; 原口　博光; 稔之久次米; 勇一臼井; 悦史北原; 耕一八田; 篤吉本
Original assignee: Ａｇｃ－Ｌｉｘｉｌウィンドウテクノロジー株式会社
Priority date: 2014-12-19
Filing date: 2015-12-16
Publication date: 2016-06-23
Also published as: JP6655026B2; JPWO2016098831A1

Abstract

Provided is a window that can improve thermal insulation performance. In this window 10, an airtight material 28 is arranged in a gap that is between an end surface 16C of a glass plate 16 and a depth wall 14 (a groove part) of a window frame 12 such that the gap is occluded. As a result, the present invention can prevent air from leaking from the gap and can thereby improve thermal insulation performance. In addition, the airtight material 28 is arranged closer to an indoor side than a hole part 30 that is provided to the depth wall 14 and the airtight material 28 therefore acts as a dam. As a result, moisture that has infiltrated the depth wall 14 can be reliably drained outdoors from the hole part 30 and through an exterior drainage hole part 32. In addition, in this window 10, as a result of the airtight material 28 being provided to the end surface 16C of the glass plate 16, the glass plate 16 and the airtight material 28 are integrated and the workability of the window 10 is thereby improved.

Description

window

The present invention relates to a window with improved heat insulation performance.

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 (see Patent Document 1 or the like) having a high thermal insulation performance (that is, a low U value) compared to a single-plate glass plate tends to be used as a glass plate for window glass. is there.

By the way, Patent Document 2 discloses a window in which the edges of the four sides of a rectangular multilayer glass are inserted into the glass groove of a frame (window frame). Further, the fore edge surface of the lower side of the multi-layer glass is supported by the lower eyelid of the eaves frame through the setting block. Furthermore, a plurality of drain holes (holes) penetrating in the vertical direction are provided in the lower rod, and rainwater or the like that has entered the glass groove of the lower rod is drained from the drain hole to the outdoor. .

The setting block has a substantially rectangular parallelepiped shape, as disclosed in Patent Document 3, and is generally provided at two locations in the direction of finding, and has a small edge on the lower side of the multilayer glass. A part of the entire surface is supported by the lower arm via the setting block. That is, in a portion excluding the setting block, a gap is generated between the lower glass groove and the small edge of the lower side of the multilayer glass.

JP 2014-133675 A Japanese Patent Application Laid-Open No. 2014-118761 Japanese Patent Application Laid-Open No. 2014-201981

Conventional windows use double-glazed glass as the window glass, and heat insulation performance is improved by attaching the edges of the four sides of the double-glazed glass to the window frame with an airtight material or sealing material.

However, the conventional window has the following problems when the glass sheet outside the multilayer glass is bent inward by the wind pressure of the outside air. That is, the cool air or warm air that has entered the glass groove of the window frame leaks from the gap between the glass groove and the facet of the double-glazed glass, and cools the glass plate on the indoor side of the double-glazed glass. Or heat. For this reason, in the conventional window, there existed a problem that it was difficult to obtain high heat insulation performance.

This invention is made | formed in view of such a situation, and it aims at providing the window which can improve heat insulation performance.

In order to achieve the above object, an aspect of the present invention includes a glass plate having a main surface and a fore edge surface, and a groove portion to which the fore edge surface of the glass plate is attached. A window frame having a hole communicated with outside air, and a gap between the small edge surface of the glass plate and the groove of the window frame is provided with an airtight material that closes the gap. The window is provided, wherein the airtight member is disposed indoors with respect to the hole.

According to one aspect of the present invention, the airtight material is disposed in the gap between the small edge surface of the glass plate and the groove portion of the window frame, and the gap is closed, so that leakage from the gap can be prevented. Thermal insulation performance can be improved. Further, since the airtight material is disposed on the indoor side with respect to the drainage hole provided in the groove, the airtight material becomes a weir. Thereby, the water | moisture content which penetrate | invaded into the groove part can be reliably drained from a hole part to the outdoor.

In one aspect of the present invention, it is preferable that the glass plate is a multi-layer glass in which at least two glass plates are spaced apart by a spacer.

According to one embodiment of the present invention, the heat insulating performance can be further enhanced by using a multi-layer glass having high heat insulating performance as a glass plate.

In one aspect of the present invention, it is preferable that the airtight material is provided on the small edge surface of the glass plate.

According to one aspect of the present invention, since the glass plate and the airtight material are integrated by providing the airtight material on the small edge surface of the glass plate, the workability of the window is improved.

In one embodiment of the present invention, it is preferable that a support plate is disposed on the small edge surface of the multilayer glass, and the airtight material is provided on the support plate.

According to one aspect of the present invention, the support plate is disposed on the small-sized surface of the multilayer glass, and the multilayer glass and the hermetic material are integrated by providing the support plate with the hermetic material. Improves. In addition, when the thickness of the glass plate constituting the multilayer glass is thin and it is difficult to provide an airtight material on the facet of these glass plates, by configuring as in one embodiment of the present invention, An airtight material can be placed on the facet. The hermetic material can be disposed on the support plate by being integrally formed with the support plate.

In one aspect of the present invention, the airtight material includes a first airtight material provided on the small edge surface of the glass plate and a second airtight material provided in the groove portion of the window frame. It is preferable that one airtight material and the second airtight material are brought into contact with each other.

In one aspect of the present invention, the hermetic material includes a first hermetic material provided on the multilayer glass support plate and a second airtight material provided on the groove portion of the window frame, It is preferable that a 1st airtight material and a said 2nd airtight material are contact | abutted.

According to one aspect of the present invention, when the airtight material is configured from the first airtight material and the second airtight material, and the glass plate is attached to the groove portion of the window frame, the first airtight material and the second airtight material. Since the airtight material contacts, the function of the airtight material can be exhibited.

In addition, the airtight material of this invention is arrange | positioned avoiding the setting block for supporting the dead weight of a glass plate to a window frame.
In one aspect of the present invention, the groove is preferably a prospective wall on the lower side of the window frame.

According to the present invention, it is possible to provide a window capable of enhancing the heat insulation performance.

The longitudinal cross-sectional view of the window which concerns on 1st Embodiment Vertical sectional view of the lower part of the window according to the second embodiment Vertical sectional view of the lower part of the window according to the third embodiment The partially exploded perspective view of the whole multiple glass shoji shown in FIG. A vertical sectional view of the lower part of the multiple glass shoji shown in FIG. An exploded perspective view of a corner key that connects spacers Exploded perspective view of the corner key connecting the support plates Main part explanatory drawing which showed the state which connected the spacer and the corner key with the screw, and the state which connected the support plate and the corner key with the screw.

Hereinafter, embodiments of the window according to the present invention will be described with reference to the accompanying drawings.

[Configuration of Window 10 of First Embodiment]
FIG. 1 is a vertical cross-sectional view of a window 10 according to the first embodiment, and is a vertical cross-sectional view in which a vertical center portion of the window 10 is omitted. The window 10 is configured by mounting four side edges of a rectangular glass plate 16 on a prospective wall (that is, a groove) 14 of the window frame 12. The window frame 12 is fixed to an opening (not shown) of the building frame or fixed inside the window frame fixed to the opening of the building frame, and is made of a hard synthetic resin material or an aluminum alloy. It is preferable that the extruded shape.

The window frame 12 is provided with a pressing edge 18 and an airtight material 20. The pressing edge 18 is detachably mounted on the pressing edge mounting groove 22 provided on the prospective wall 14 of the window frame 12, and the lip 18 B is the main surface 16 A on the outdoor side of the glass plate 16. It is closely attached to. On the other hand, the airtight material 20 is fitted with the fitting portion 20A in the groove portion 26 for airtight material mounting provided on the indoor side wall 24 of the window frame 12, and the lip portion 20B is the main surface on the indoor side of the glass plate 16. It adheres to 16B. Thereby, the glass plate 16 is pressed by the pressing edge 18 and the airtight material 20 from the outdoor side and the indoor side and is held by the window frame 12.

The small face 16C on the lower side of the glass plate 16 is supported on the prospecting wall 14 via a setting block (not shown). In addition, an airtight material 28 is bonded to all the small edge surfaces 16C on the four sides of the glass plate 16, and between all the small edge surfaces 16C and the prospective wall 14 except for the small edge surface 16C in contact with the setting block. The gap is closed by the airtight material 28.

Further, the airtight member 28 is a drainage hole on the lower side of the frame body provided on the prospective wall 14 on the lower side of the window frame 12 (that is, the hole referred to in claim 1. .) It is arranged indoors with respect to 30. A plurality of hole portions 30 are provided at intervals along the longitudinal direction of the prospecting wall 14.

Furthermore, the airtight material 28 is disposed close to the hole 30, and moisture such as rainwater that has entered the prospective wall 14 is blocked by the airtight material 28 that functions as a weir, so that the drainage from the hole 30 can be reliably performed. It is supposed to be. Moisture drained from the hole 30 is drained to the outside through a hole 32 for external drainage provided at the lower outdoor side of the window frame 12. Therefore, the hole 30 communicates with the outdoor outside air through the hole 32 for external drainage. As the airtight material 28, resin, rubber, or foam can be applied. The window 10 is a FIX window that cannot be opened or closed or a movable shoji that can be opened or closed.

[Features of window 10]
According to the window 10 of 1st Embodiment, the airtight material 28 was arrange | positioned in the clearance gap between the small edge surface 16C of the glass plate 16, and the prospective wall 14 of the window frame 12, and the clearance gap was obstruct | occluded. Thereby, since the air leak from the said clearance gap can be prevented, heat insulation performance can be improved. Moreover, since the airtight material 28 is disposed close to the indoor side with respect to the hole 30 provided in the prospective wall 14, the airtight material 28 serves as a weir. Thereby, the water | moisture content which penetrate | invaded the prospect wall 14 can be reliably drained out of the outdoor through the hole part 32 for external drainage from the hole part 30. FIG.

Moreover, according to the window 10 of 1st Embodiment, since the glass plate 16 and the airtight material 28 were integrated by providing the airtight material 28 in the small end surface 16C of the glass plate 16, the workability of the window 10 is provided. Will improve.

[Configuration and Features of Window 40 of Second Embodiment]
FIG. 2 is a vertical cross-sectional view of the lower portion of the window 40 of the second embodiment. In addition, the same code | symbol is attached | subjected about the same or similar member as the window 10 shown in FIG. 1, and the description is abbreviate | omitted.

The airtight material 28 shown in FIG. 2 includes a first airtight material 42 that is provided on the small face 16C of the glass plate 16 by adhesion, and a second airtight material 44 that is provided on the expected wall 14 of the window frame 12 by adhesion. The first airtight material 42 and the second airtight material 44 are in contact with each other.

According to the window 40 of the second embodiment, the hermetic material 28 (see FIG. 1) is constituted by the first hermetic material 42 and the second hermetic material 44, and the glass plate 16 is connected to the prospective wall 14 of the window frame 12. Since the first air-tight material 42 and the second air-tight material 44 come into contact with each other when mounted, the same function as the air-tight material 28 can be exhibited.

The form of contact between the first airtight material 42 and the second airtight material 44 is such that the mutual shapes are substantially L-shaped as shown in FIG. 2, and the refracting

portions

42A and 44A at the tip portions are engaged with each other. Moreover, the form which makes a mutual shape a block shape and makes the opposing surfaces of those blocks contact | abut may be sufficient.

[Configuration of Window 50 of Third Embodiment]
FIG. 3 is a longitudinal sectional view of the lower part of the window 50 according to the third embodiment. In addition, the same code | symbol is attached | subjected about the same or similar member as the window 10 shown in FIG. 1, and the description is abbreviate | omitted.

The window 50 of the third embodiment is configured by mounting the edges of the four sides of a multiple glass shoji (ie, multi-layer glass) 52 on the prospective wall 14 of the window frame 12.

Before describing the characteristics of the window 50, first, the configuration of the multiple glass shoji 52 will be described.

Here, the multiple glass shoji 52 is configured by using a frame body in which four spacers, which will be described later, are integrated, and by separating five glass plates that are assumed to be able to exhibit heat insulation performance to the maximum. It is a thing. In addition, an argon gas having a thermal conductivity smaller than that of air is enclosed in the four divided hollow layers described later, so that the heat insulation performance is further improved.
In addition, the multiple glass shoji 52 is included in the category of the multilayer glass in the present invention.
In addition, when high heat insulation is not especially required, the above-described divided hollow layer may be filled with dry air or other inert gas.

<Overall configuration of multiple glass shoji 52>
FIG. 4 is a partially exploded perspective view of the entire multiple glass screen 52, and FIG. 5 is a vertical sectional view of the lower portion of the multiple glass screen 52. As shown in FIG.

In FIG. 4, the airtight material 28 provided in the multiple glass shoji 52 is shown exaggerated with respect to the actual dimensions. The hermetic material 28 is arranged along the four sides of the multiple glass shoji 52. On the lower side of the multiple glass shoji 52, it is divided into three so as to avoid the two setting blocks SB. The airtight material 28 and the setting block SB provided on the lower side of the multiple glass screen 52 are shown separated from the lower side of the multiple glass screen 52 for easy understanding.

As shown in FIGS. 3 to 5, the multiple glass shoji 52 is composed of a glass plate 54 disposed on the outdoor side of the building, a glass plate 56 disposed on the indoor side, and between the glass plate 54 and the glass plate 56. The three

intermediate glass plates

58A, 58B and 58C, the spacer 60 which separates the glass plate 54 and the glass plate 56 and holds the

intermediate glass plates

58A, 58B and 58C in a spaced manner, and the spacer 60 And a support plate 62 that supports the outer side from the outside. The support plate 62 and the airtight material 28 are integrally formed.

The four support plates 62 abutted at the corners are respectively connected by a corner key (also referred to as a corner piece) 64. The

intermediate glass plates

58A, 58B, and 58C are simply referred to as the intermediate glass plate 58 when collectively referred to.

The glass plate 54 and the glass plate 56 are separated by a spacer 60 at the periphery thereof. Thereby, a hollow layer is formed between the glass plate 54 and the glass plate 56. The hollow layer formed by the glass plate 54, the glass plate 56, and the spacer 60 is sealed by the spacer 60 at the periphery, and the three

intermediate glass plates

58A, 58B, and 58C are arranged apart from each other. Thus, the hollow layer is divided into four divided hollow layers 66.

<Spacer 60>
As shown in FIG. 5, the spacer 60 is connected to the inner surface portion 68 and the outer surface side portion 70, and the inner surface portion 68 and the outer surface side portion 70, which maintain the distance between the glass plate 54 and the glass plate 56, so It is comprised from the

side part

72 and 72 contact | abutted to an inner surface, and the several space part 76 with which the desiccant 74 (refer FIG. 3) is filled.

The spacer 60 is provided with three rows of groove portions 78 on the inner surface portion 68 of the spacer 60 in order to hold a part of the peripheral portion of the three

intermediate glass plates

58A, 58B, 58C. The three rows of grooves 78 are formed in parallel along the longitudinal direction of the spacer 60 so that the three

intermediate glass plates

58A, 58B, 58C are arranged in parallel.

In the embodiment, the space 76 is divided into four in the left-right direction by forming a groove 78 for holding the intermediate glass plate 58. The number of the space portions 76 is determined according to the number of the intermediate glass plates 58. The spacer 60 of the embodiment is integrally formed so as to have a plurality of spaces 76 and a plurality of grooves 78.

The glazing channel 80 for supporting the end portions of the

intermediate glass plates

58A, 58B, and 58C is fitted into the groove portion 78 of the spacer 60 of the embodiment. The

intermediate glass plates

58A, 58B, and 58C can be easily adhered and fixed to the groove portion 78 of the spacer 60 by the glazing channel 80. Further, the thickness of each divided hollow layer 66 can be changed by decentering the glazing channel 80.

Also, the glazing channel 80 can be partially arranged in the groove 78.

The glazing channel 80 is not limited to the shape shown in FIG. 5, and a glazing channel 80 having another shape can also be used.

When the two

glass plates

54 and 56 have a rectangular flat plate shape, the

glass plates

54 and 56 are separated by four spacers 60 arranged in the vicinity of the periphery of the four sides.

<Corner key 82>
FIG. 6 is an exploded perspective view showing a corner key 82 for connecting the spacers 60 to each other.

At the four corners where each end of the spacer 60 is abutted, adjacent spacers 60 are connected by a corner key 82 that is a spacer connecting member, thereby forming a continuous frame-shaped spacer.

The spacer 60 has an end face 86 that faces the main body 84 of the corner key 82. A through hole 88 is formed in the inner surface portion 68 of the spacer 60. The through hole 88 is in communication with the space 76 (see FIG. 5).

The corner key 82 has a main body portion 84 and an insertion portion 90 that protrudes from the main body portion 84 and is disposed in an L shape. A through hole 92 is formed in the insertion portion 90. In the corner key 82, the insertion portion 90 arranged in an L shape is integrally formed with the main body portion 84 corresponding to the plurality of space portions 76 of the spacer 60.

<Support plate 62>
As shown in FIGS. 3 and 5, the support plate 62 is a member that supports and reinforces the spacer 60. For this reason, the support plate 62 is disposed at a position facing the outer surface side portion 70 of each spacer 60. Two adjacent support plates 62 are connected by a corner key 64 as shown in FIG.

A secondary sealing material 118 is provided between the support plate 62 and the glass plate 54 and between the support plate 62 and the glass plate 56. Further, a moisture permeation preventing layer 102 is provided between the spacer 60 and the support plate 62.

In the embodiment, the support plate 62 is integrally formed so as to have a plurality of hollow portions 98. The support plate 62 is molded from a support plate forming material. As the molding method, a molding method such as an extrusion molding method using a support plate forming material, a co-extrusion molding method, or an injection molding method can be used.

As the support plate forming material, a synthetic resin material is preferably used. The synthetic resin material for forming the support plate is preferably a hard vinyl chloride resin material, an acrylonitrile / styrene resin material, or 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.

Further, the support forming material is not limited to one type, and may be a composite structure using a plurality of types of materials. For example, different resin materials may be used as a composite structure support made of partially different synthetic resin materials by a co-extrusion molding method, or a composite structure support 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 of the spacer forming materials. The integrally formed support plate 62 may be partially or wholly joined with different synthetic resin materials and / or metal materials. In particular, the support plate 62 formed of a hard vinyl chloride resin material or an acrylonitrile / styrene resin material is excellent in heat insulation when used as the multiple glass shoji 52, easy to be integrally molded, and excellent in durability. Inexpensive.

<Corner key 64>
FIG. 7 is an exploded perspective view of the corner key 64 that connects the support plates 62 to each other.

At the corners of the four corners where each end of the support plate 62 is abutted, the adjacent support plates 62 are connected to each other by a corner key 64 that is a support plate connecting member, thereby forming a continuous frame-shaped support plate. .

The corner key 64 has a main body portion 104 and an insertion portion 112 that protrudes from the main body portion 104 and is arranged in an L shape. A through hole 114 is formed in the insertion portion 112. In the corner key 64, the insertion portion 112 arranged in an L shape is formed integrally with the main body portion 104 so as to correspond to the plurality of hollow portions 98 of the support plate 62.

When the support plate 62 and the corner key 64 are connected, the through hole 110 of the support plate 62 and the through hole 114 of the insertion portion 112 of the corner key 64 are aligned with each other. A screw 116 as a fixing member is inserted into the through hole 110 of the support plate 62 from the outer surface portion 108. The screw 116 passes through the support plate 62 and reaches the through hole 114 of the insertion portion 112.

<Sealant 100, secondary sealant 118>
As shown in FIG. 5, the multiple glass screen 52 includes a sealing material (that is, a primary sealing material) 100 and a secondary sealing material 118.

Side portions

72 and 72 of the spacer 60 facing the glass plate 54 and the glass plate 56 are joined to the glass plate 54 and the glass plate 56 by butyl rubber which is the sealing material 100. Then, the outer surface side portion 70 side of the spacer 60 is filled with a polysulfide-based or silicone-based sealing material which is the secondary sealing material 118. Thereby, the multiple glass shoji 52 is configured. The sealing material 100 and the secondary sealing material 118 are not limited to the above forms, and the same material may be used for the bonding with the

glass plates

54 and 56 and the sealing material applied to the outer surface side portion 70 side of the spacer 60. Furthermore, you may have another sealing material which protects the secondary sealing material 118 on the outer periphery of the secondary sealing material 118. FIG.

Since the support plate 62 that supports the spacer 60 is provided in the multiple glass shoji 52, the secondary sealant 118 is provided between the support plate 62 and the glass plate 54, and between the support plate 62 and the glass plate 56. Provided.

In the embodiment, since the support plate 62 is provided, the moisture permeation preventing layer 102 can be protected. The above is the configuration of the multiple glass shoji 52.

Next, features of the window 50 of the third embodiment will be described.

[Features of window 50]
As shown in FIG. 3, according to the window 50 of the third embodiment, the airtight material 28 is disposed in the gap between the support plate 62 (small face) of the multiple glass shoji 52 and the expected wall 14 of the window frame 12. Closed the gap. Thereby, since the air leak from the said clearance gap can be prevented, heat insulation performance can be improved.

Moreover, since the airtight material 28 is disposed close to the indoor side with respect to the hole 30 provided in the prospective wall 14, the airtight material 28 becomes a weir. Thereby, the water | moisture content which penetrate | invaded the prospect wall 14 can be reliably drained out of the outdoor through the hole part 32 for external drainage from the hole part 30. FIG.

In addition, according to the window 50 of the third embodiment, since the multiple glass shoji 52, which is a double-glazed glass having high heat insulation performance, is used as the window glass plate, the heat insulation performance can be further enhanced.

Furthermore, according to the window 50 of the third embodiment, by providing the airtight material 28 on the support plate 62, the multiple glass shoji 52 and the airtight material 28 can be integrated, and the workability of the window 50 is improved.

Furthermore, by providing the support plate 62 on the multiple glass shoji 52, the spacer 60 can be reinforced by the support plate 62, and the hermetic material 28 is integrally formed on the support plate 62 functioning as such a reinforcement plate. The support plate 62 can be effectively used as a reinforcing plate and as a member for providing the airtight material 28. That is, it is advantageous when the

glass plates

54 and 56 and the intermediate glass plate 58 constituting the multiple glass shoji 52 are thin and it is difficult to provide an airtight material on the small edge surface of these glass plates.

Further, the support plate 62 may be provided with the airtight material 42 shown in FIG. 2, the prospective wall 14 may be provided with the airtight material 44, and the airtight material 42 and the airtight material 44 may be brought into contact with each other to exert an airtight function. .

ADVANTAGE OF THE INVENTION According to this invention, the window which can improve heat insulation performance can be provided.
The entire contents of the specification, claims, drawings and abstract of Japanese Patent Application No. 2014-256801 filed on Dec. 19, 2014 are incorporated herein as the disclosure of the present invention. .

DESCRIPTION OF SYMBOLS 10 ... Window, 12 ... Window frame, 14 ... Expected wall (namely, groove part), 16 ... Glass plate, 18 ... Push edge, 20 ... Airtight material, 22 ... Groove part for pushing edge installation, 24 ... Indoor side wall, 26 ... Airtight material attachment Groove, 28 ... Airtight material, 30 ... hole, 32 ... hole (for external drainage), 40 ... window, 42 ... first airtight material, 44 ... second airtight material, 50 ... window, 52 ... multiple Glass shoji (namely, multi-layer glass), 54 ... glass plate, 56 ... glass plate, 58 ... intermediate glass plate, 60 ... spacer, 62 ... support plate, 64 ... corner key, 66 ... split hollow layer, 68 ... inner surface , 70 ... outer surface side part, 72 ... side edge part, 74 ... desiccant, 76 ... space part, 78 ... groove part, 80 ... glazing channel, 82 ... corner key, 84 ... main body part, 86 ... end face, 88 ... through hole , 90 ... insertion part, 92 ... through hole, 94 ... screw, 96A, 96 96C, 96D ... low emission membrane, 98 ... hollow portion, 100 ... sealing material, 102 ... moisture permeation preventive layer, 104 ... main body portion, 106 ... end surface, 108 ... outer surface portion, 110 ... through hole, 112 ... insertion portion, 114 ... through hole, 116 ... screw, 118 ... secondary sealing material.

Claims

A glass plate having a main surface and a fore edge surface; and a window frame having a groove portion to which the fore edge surface of the glass plate is attached, and having a hole portion provided in the groove portion and communicated with outdoor outside air. In the window provided,
In the gap between the small edge surface of the glass plate and the groove portion of the window frame, an airtight material for closing the gap is provided,
The said airtight material is arrange | positioned indoors with respect to the said hole, The window characterized by the above-mentioned.
The window according to claim 1, wherein the glass plate is a multi-layer glass in which at least two glass plates are spaced apart by a spacer.
The window according to claim 1 or 2, wherein the hermetic material is provided on the small edge surface of the glass plate.
The window according to claim 2, wherein a support plate is disposed on the small edge surface of the multilayer glass, and the airtight material is provided on the support plate.
The airtight material includes a first airtight material provided on the small edge surface of the glass plate, and a second airtight material provided in the groove portion of the window frame, and the first airtight material and the first airtight material. The window according to claim 1, wherein the two airtight materials are brought into contact with each other.
The airtight material includes a first airtight material provided on the support plate of the multilayer glass and a second airtight material provided in the groove of the window frame, and the first airtight material and the first airtight material. The window according to claim 2, wherein the two airtight materials are brought into contact with each other.
The window according to any one of claims 1 to 6, wherein the groove is a prospective wall on a lower side of the window frame.