JPH10115151A - Structure of window of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure of a window of a building, in which a gap is hardly formed between a window frame body as the section made of a metal of a window frame and the wood for mounting the window frame and the heat-insulating properties, airtightness and a dew-condensation preventive function in the section between the window frame body and the wood are improve remarkably and which has excellent durability. SOLUTION: The structure 1 of the window for the building is composed of a window frame with a window frame body 18 made of a metal and wood 8 for mounting the window frame, which is formed so as to surround the periphery of the window frame and to which the window frame is installed. A thermal insulating interposer 30 having low heat conductivity obstructing heat conduction between the window frame body and wood for mounting the window frame is interposed between a peripheral section 20 for mounting the window frame in at least the lower section of the window frame body and wood 8 for mounting the window frame at that time, and a section between the peripheral section 20 for mounting the window frame of the window frame body and wood 8 for mounting the window frame is brought to a noncontact state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window structure in a building, and more particularly to an improvement in a structure for mounting a metal window frame (sash) such as an aluminum sash.

[0002]

2. Description of the Related Art Conventionally, when building a window in a building such as a house, a metal window frame made of aluminum or the like on which a glass door or the like is integrally mounted is composed of a lintel and a window stand. It has been widely practiced to construct windows by nailing to window frame mounting wood.

[0003] In this case, when the entire window frame is made of metal, there is a problem in terms of heat insulation, especially in winter or the like, where the warm air in the room escapes outside through the window frame. In addition, at the indoor side end of the window frame cooled by the outside air, the high-temperature and high-humidity air in the room is cooled to cause dew condensation, which may cause the wood for window frame mounting to rot or mold. There was no such thing as unfavorable.

[0004] In order to solve such a problem, conventionally, as shown in FIG.
0 is made of metal, and inner window frames 112 and 114 on the indoor side.
Is made of resin or wood such as polyvinyl chloride having excellent heat insulating properties to improve the heat insulation of the window frame, or as shown in FIG.
14 and the outer window frames 216, 218,
Heat insulation members 220 and 224 made of resin such as polyvinyl chloride having excellent heat insulation properties are interposed between the inner window frame and the outer window frame to block heat conduction between the outer window frame and the inner window frame. Improving the heat insulation has been performed.

[0005]

However, in the conventional window structure as shown in FIG. 7, especially in the winter season, the warm and humid air in the room, as shown by the arrow A in the figure, particularly At the edge of the window frame mounting below the frame,
Window frame 120A of inner window frame 112 and window mounting wood 120
Window frame mounting peripheral portion 110A at the lower end of metal window frame main body 110 which has entered through the gap between and and cooled by outdoor air outside
, And there was a possibility that dew condensation would occur at that portion.
The occurrence of such dew condensation is not preferable because the adjacent window frame mounting wood is spoiled or molds are generated. In the conventional window structure shown in FIG.
Peripheral edge 21 for attaching lower end window frame of metal outer window frame 218
8A had a similar problem of dew formation.

[0006] In consideration of such a situation, the present invention hardly produces a gap between the window frame main body, which is a metal portion of the window frame, and the window frame mounting wood, and has a heat insulating property of this portion. It is an object of the present invention to provide a window structure of a building having a significantly improved airtightness and dew condensation prevention function and excellent durability.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned objects and objects of the prior art, and the structure of a window of a building according to the present invention is as follows.
A window frame having a window frame body and mainly made of metal;
And a window frame mounting lumber formed so as to bend around the window frame and to which the window frame is mounted. Between the periphery and the window frame mounting wood, a thermally insulating interposer with a low thermal conductivity that inhibits heat conduction between the window frame main body and the window frame mounting wood is interposed, A non-contact state is provided between the window frame mounting peripheral portion and the window frame mounting wood.

[0008] By thus interposing the thermally insulating intervening material having low thermal conductivity, the metal portion of the window frame body cooled by the outside air does not come into contact with the warm and humid air in the room. In addition, since the metal part and the window frame mounting wood are not in contact with each other, it is possible to prevent dew condensation from occurring at the periphery of the window frame main body, and the adjacent window frame mounting wood may rot or generate mold. Can be prevented.

Further, the structure of the window of a building according to the present invention has a window frame main body, and a window frame mainly made of metal, and a window frame formed so as to bend around the window frame. In the structure of a window of a building composed of a window frame mounting wood to be mounted, the window frame is formed between reinforcing ribs provided so as to protrude at least at a window frame mounting peripheral portion below the window frame body. Characterized in that a thermally insulating interposer with low thermal conductivity that inhibits heat conduction between the window frame body and the window frame mounting wood and maintains airtightness is interposed in the gap.

In the structure of the window having such a configuration, the gap between the window frame mounting peripheral portion and the window frame mounting lumber is formed by the thermally insulating intervening material interposed in the gap formed between the reinforcing ribs. Are sealed, and airtightness is maintained, so that the warm and moist air in the room does not come into contact with the metal part of the window frame body cooled by the outside air, so that the periphery of the window frame body It is possible to prevent dew condensation from occurring in the part.

Further, the structure of a window of a building according to the present invention has a window frame main body, and a window frame mainly made of metal, and a window frame formed so as to surround the window frame. In the structure of a window of a building composed of a window frame mounting wood to be mounted, the window frame is formed between reinforcing ribs provided so as to protrude at least at a window frame mounting peripheral portion below the window frame body. A sealing member made of an elastic body that maintains airtightness is interposed in the gap.

In such a structure of a window of a building, the gap between the window frame mounting peripheral portion and the window frame mounting wood is brought into close contact with the sealing member interposed in the gap formed between the reinforcing ribs ( (Sealing), and airtightness is maintained, so that there is no contact with warm and humid air in the room, so that dew condensation can be prevented from occurring at the periphery of the window frame body, and the adjacent window frame can be prevented. It is possible to prevent the wood for mounting from rotting or generating mold.

Still further, the structure of a window of a building according to the present invention has a window frame main body, and a window frame mainly made of metal, and a window frame formed so as to bend around the window frame. In the structure of a window of a building composed of a window frame mounting wood to which is mounted, at least a window frame mounting peripheral portion below the window frame main body and the window frame mounting wood, a window frame main body, By interposing a thermally insulating interposer having a low thermal conductivity that hinders heat conduction with the window frame mounting wood, a gap between the window frame mounting peripheral portion of the window frame body and the window frame mounting wood is removed. In addition to the contact state, a sealing projecting portion for maintaining airtightness by projecting into a gap formed between reinforcing ribs provided so as to project from the window frame mounting peripheral portion of the window frame body. , Formed on the thermal insulating interposer.

[0014] In such a window structure of a building, a thermally insulative material having low thermal conductivity is interposed between the window frame mounting peripheral portion of the window frame main body and the window frame mounting wood. Since the metal part of the window frame body cooled by the outside air does not come into contact with the warm and moist air in the room, and the metal part and the window frame mounting wood are in a non-contact state, This can prevent the occurrence of dew condensation. In addition, since the hermeticity is maintained by the sealing projecting portion projecting into the gap formed between the reinforcing ribs provided on the peripheral portion for mounting the window frame, the heat insulating property is further improved, and dew condensation is prevented. Can be.

In this case, a sealing member made of an elastic material for maintaining airtightness may be further interposed between the window frame mounting peripheral portion of the window frame main body and the window frame mounting wood. In some cases, the airtightness is further maintained,
Heat insulation is further improved, and dew condensation can be prevented.

[0016]

DETAILED DESCRIPTION OF THE INVENTION In the present invention, the thermal insulation
This thermally insulating insulating material is a flexible thin layer made of a resin having a thermal conductivity at 27 ° C. of 0.20 Kcal / m · hr · ° C. or less, preferably 0.15 Kcal / m · hr · ° C. or less. Is formed, it is possible to reliably shut off the heat between the room and the outdoors. The thermal conductivity of the resin forming the flexible thin layer has a critical significance in the present invention, for example, in the case of a polyamide film having a thermal conductivity of 0.21 Kcal / m · hr · ° C. It is not possible to prevent the formation of dew on a window frame having the configuration as in the present invention.

Examples of suitable resins for forming such a thermally insulating insert include polyvinyl chloride, polyurethane,
Polystyrene and polyolefins can be mentioned. Such a resin may be a homopolymer or a copolymer with another monomer. Further, a composition containing these resins as a main component may be used.

These resins may be foams. Conventionally, when these resins are foamed and used,
The firing rate is usually 20 to 80 times that of foaming. When the resin is foamed at such a foaming ratio, some of the formed bubbles become open cells. In the thermal insulation interposer used in the present invention, when such open cells are formed, moisture easily penetrates, and the thermal insulation property also decreases, so when using a resin foam, The expansion ratio is set to 5 times or less so that such open cells are not formed.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a window of a building according to the present invention will be described below in detail with reference to an embodiment shown in the drawings.

FIG. 1 is a sectional view of a main part of a window structure of a building according to a first embodiment of the present invention, and FIG. 2 is an enlarged view of a portion B in FIG. The illustrated embodiment shows an example of the structure of a window of a fixed building in a wooden house. The window structure 1 of the present embodiment has a window frame in which a glass window 2 made of double-glazed glass is unitized. 6 shows a case in which 6 is attached to window frame attaching wood 8 and structural plywood 10. Note that the window frame mounting wood 8 extends so as to bend and surround the window frame 6 along the entire shape of the window frame 6 and has an inner peripheral dimension slightly larger than the outer periphery of the window frame main body 18. The mounting of the frame 6 is facilitated.

A structural plywood 10 is stretched on the wall of the building, and a heat insulating material 14 is provided between the structural plywood 10 and the pillars 12. Are arranged. The window frame 6 according to the present embodiment has a window frame body 18 made of metal such as aluminum on the outside of the room holding the glass window 2 and an inside of the room made of a resin such as polyvinyl chloride having excellent heat insulation. It is composed of window frames 17 and 19. Further, the window frame body 18 is attached to the window frame body 1 so as to be nailed to the structural plywood 10 and the window frame mounting wood 8.
8 has a protruding portion 22 extending on the outer periphery thereof. In addition, it goes without saying that components such as the structural plywood 10 and the heat insulating material 14 can be omitted as appropriate.

The periphery of the window frame body 18 has a window frame mounting peripheral portion 20. The window frame mounting peripheral portion 20 has
A reinforcing rib 24 for reinforcing the window frame main body 18 is provided so as to protrude outward.

In this embodiment, as shown in the enlarged view of FIG. 2, the peripheral portion of the window frame main body 18, especially the peripheral portion 20 for attaching the window frame of the lower window frame main body 18, and the lower portion of the window frame main body 18 are attached. Heat conduction between the window frame main body 18 and the window sill 9 between the wood plywood 10 and the structural plywood 10 (between the window sill 9 when there is no structural plywood 10 and so on). A low-rate sheet-like thermal insulating intervening material 30 is interposed, so that the window frame mounting peripheral portion 20 of the window frame main body 18 and the window base 9 are in a non-contact state.

In this way, the warm and humid air in the room is removed from the inner window frame 1 at the window frame mounting peripheral portion below the window frame.
7 does not come into contact with the window frame mounting peripheral portion 20 at the lower end of the metal window frame main body 18 cooled by the outside air, Since the window frame mounting wood is in a non-contact state, there is no possibility that dew condensation will occur, and the adjacent window frame mounting wood will not rot or mold.

In this case, the thermal insulating interposer 30 has a mere sheet shape as shown in FIG. 2 and, as shown in FIG. By forming the fitting recess 32 into which the reinforcing rib 24 of the window frame mounting peripheral portion 20 is fitted, almost all of the gap between the window frame mounting peripheral portion 20 of the window frame main body 18 and the window base 9 is present. Therefore, the airtightness is improved, and the heat insulating effect and the dew condensation preventing effect are further exhibited.

As shown in FIG. 2, if the thermally insulating interposer 30 is provided with a portion 31 extending between the projecting portion 22 of the window frame body 18 and the window base 9, This is preferable because the effect of preventing dew condensation and the like is further improved. in this case,
The extension portion 31 may be formed integrally with the thermally insulating interposition member 30 or may be formed as a separate member.

Further, as the thermally insulating intervening material 30, 27
A flexible thin layer (sheet-like) made of a resin having a thermal conductivity of 0.20 Kcal / m · hr · ° C. or less, preferably 0.15 Kcal / m · hr · ° C. or less at 100 ° C. By forming the interposed object, the space between the room and the outside can be reliably thermally shut off. The thermal conductivity of the resin forming the flexible thin layer has a critical significance in the present invention, for example, in the case of a polyamide film having a thermal conductivity of 0.21 Kcal / m · hr · ° C. It is not possible to prevent the formation of dew on a window frame having the configuration as in the present invention.

Examples of suitable resins for forming such a thermally insulating insert include polyvinyl chloride, polyurethane,
Polystyrene and polyolefins can be mentioned. Such a resin may be a homopolymer or a copolymer with another monomer. Further, a composition containing these resins as a main component may be used. Such a resin has a thermal conductivity as described above even if it is a non-foamed body. Therefore, the thickness of the resin is 1 mm or more, preferably 2 mm or more, particularly preferably 2 to 1 mm.
A 0 mm thick laminar body can be used as thermal insulation. If the thickness of the thermally insulating material is less than 1 mm, the self-supporting property of the thermally insulating material is reduced, and the thermally insulating material is laid uniformly when installing the window frame. This is because if the thickness exceeds 10 mm, for example, in the case of a non-foamed resin, it becomes difficult to maintain flexibility.

These resins may be foams. Conventionally, when these resins are foamed and used,
The firing rate is usually 20 to 80 times that of foaming. When the resin is foamed at such a foaming ratio, some of the formed bubbles become open cells. In the thermal insulation interposer used in the present invention, when such open cells are formed, moisture easily penetrates, and the thermal insulation property also decreases, so when using a resin foam, The expansion ratio is set to 5 times or less so that such open cells are not formed.

Further, since the window frame is mounted on the window frame mounting wood through the thermally insulating interposer, the window frame has flexibility so as not to cause cracks or the like due to the load on the window frame. It is desirable to have. In order to impart flexibility to the resin, a plasticizer is generally used. However, the plasticizer oozes out of the resin for a long period of time, and the flexibility of the resin itself decreases.
The thermal insulation interposer used in the present invention cannot be replaced once the window frame is attached,
It is preferable to use a resin that can maintain the initial state without the flexibility of the resin decreasing over time. Among the above resins, polyvinyl chloride is a resin whose flexibility can be easily adjusted without using a plasticizer such as a chlorine content or a ratio of another monomer copolymerized with vinyl chloride. The decrease in flexibility over time is extremely small. Therefore, in the present invention, it is preferable to use polyvinyl chloride, especially soft polyvinyl chloride, among the above resins.

The thermal insulating interposer can be adhered to the periphery of the window frame with an adhesive or can be adhered to the window frame mounting wood. The adhesive used here is preferably water-insoluble, acrylic adhesive, rubber adhesive,
An olefin-based adhesive, a urethane-based adhesive, an epoxy-based adhesive, or the like can be used. In particular, in the case where the thermally insulating intervening material is previously surrounded around the window frame, a thermocompression bonding adhesive may be used in addition to the above-mentioned adhesive.

When the above-mentioned adhesives are used, polyvinyl chloride has good adhesiveness with these adhesives. From this point of view, in the present invention, polyvinyl chloride, especially non-foamed soft It is preferred to use a thermally insulating insert made of polyvinyl chloride.

In this embodiment, mainly the peripheral portion of the window frame main body 18, especially the window frame main body 18 below the window frame main body 18.
Window frame mounting peripheral portion 20 and lower window frame mounting wood 8
Although the example in which the thermally insulating intervening material 30 is interposed between the window sill 9 and the window sill 9 is shown, it is a matter of course that between the other three sides of the window frame main body 18 and the window frame attaching wood 8. Also, the thermal insulation 30
It is also possible to interpose.

FIG. 4 is an enlarged sectional view of a main part of a window structure of a building according to a second embodiment of the present invention, similar to FIG. In addition,
The same components as those in the first embodiment are denoted by the same reference numerals.

In this embodiment, the reinforcing ribs 24, 24 provided on the window frame attaching peripheral portion 20 of the lower window frame body 18 are provided.
A plurality of thermally insulating interposers 30 ′, 30 ′ each having a shape fitted into the gaps 23, 23 formed therebetween between the gaps 23 in close contact with the gaps.
Are interposed, and the tip portions 24A of the reinforcing ribs 24, 24,
24A is in contact with the window sill 9.

In the structure of the window having such a structure, the thermal insulating interposed members 30 ', 30' interposed in the gaps 23, 23 formed between the reinforcing ribs 24, 24, make the peripheral edge portion for window frame mounting. The gap between the window frame 20 and the window frame mounting wood 8 (window sill 9) is tightly adhered (sealed) and airtightness is maintained, so that the metal portion of the window frame body cooled by the outside air and the room This prevents contact with the warm and moist air, thereby preventing condensation from occurring at the periphery of the window frame body.

In this case, in this case, the thermally insulated insert 30 '
What is necessary is just to use what is the same as the thermal insulation thing 30 of the above-mentioned 1st Example, between the periphery of the other three sides of the window frame main body 18, and the wood 8 for window frame mounting. In addition, it is also possible to interpose the thermally insulating interposed material 30, and a portion 31 extending between the projecting portion 22 of the window frame main body 18 and the window base 9 may be provided. This is the same as in the first embodiment described above.

FIG. 5 is an enlarged sectional view of a main part of a window structure of a building according to a third embodiment of the present invention, similar to FIG. In addition,
The same components as those in the first embodiment are denoted by the same reference numerals.

In this embodiment, reinforcing ribs 24, 24 provided on the window frame mounting peripheral portion 20 of the lower window frame body 18 are provided.
The window frame body 18 is elastically deformed between the window frame mounting peripheral portion 20 and the window frame 9 in a state where the window frame main body 18 is placed on the window frame 9 in the gaps 23 formed between the window frames 9, thereby improving airtightness. Hold, for example,
A rod-shaped sealing member 40 having a circular cross section made of an elastic body such as soft polyurethane, soft vinyl chloride, and various rubbers;
40 is interposed. In this case, the shape of the sealing member 40 can be variously changed, such as a circular cross section as shown in FIG.

In the structure of the window having such a configuration, the sealing members 40, 40 interposed in the gaps 23, 23 formed between the reinforcing ribs 24, 24 and the window frame mounting peripheral portion 20 and the window frame mounting The gap between the timber 8 (window sill 9) is closely adhered (sealed) and airtightness is maintained, so that the metal part of the window frame body cooled by the outside air and the warm and humid air in the room Does not come in contact with each other, so that dew condensation can be prevented from occurring at the peripheral portion of the window frame main body.

It is preferable to interpose a sealing member 40 between the projecting portion 22 of the window frame main body 18 and the window base 9 because airtightness is further improved. Further, the sealing member 40 can be interposed between the other three peripheral edges and the window frame mounting wood 8.

FIG. 6 is an enlarged sectional view of a main part of a window structure of a building according to a fourth embodiment of the present invention, similar to FIG. In addition,
The same components as those in the first embodiment are denoted by the same reference numerals.

In this embodiment, the window frame main body 1 is located between the window frame mounting peripheral portion 20 of the lower window frame main body 18 and the window base 9.
A sheet-like thermally insulating interposer 50 having a low thermal conductivity that hinders heat conduction between the window frame 9 and the window base 9 is interposed, and the window frame body 1 is provided.
The window frame mounting peripheral portion 20 of FIG. 8 and the window base 9 are in a non-contact state. In addition, in the gaps 23 formed between the reinforcing ribs 24 provided on the window frame mounting peripheral portion 20 of the lower window frame main body 18, the airtightness is provided by projecting into the gaps 23. Is formed on the interposition body 51 of the thermally insulated interposition 50, and the window frame main body 18 is placed on the window base 9, and the window frame mounting peripheral portion is held. The sealing projection 52 is elastically deformed between the window 20 and the window sill 9 to maintain airtightness.

In this case, the shape of the sealing projecting portion 52 can be changed in various ways such as a triangular shape in addition to the substantially circular cross section shown in FIG. The number of 52 can also be variously changed.

Further, on the side of the inner window frame 17 between the window frame mounting peripheral portion 20 of the window frame main body 18 and the window base 9, as shown in FIG. A sealing material 6 similar to the sealing material 40 of the third embodiment.
0 is interposed.

It should be noted that the thermal insulation insert 50 may be the same as the thermal insulation insert 30 of the first embodiment described above, and that the other three sides of the window frame body 18 may be used. It is also possible to interpose a thermally insulating interposer 50 between the portion and the window frame mounting wood 8, and between the projecting portion 22 of the window frame main body 18 and the window sill 9. It is the same as the above-described first embodiment that a portion 53 extending to the end may be provided.

In the window structure having such a configuration, the thermally insulating interposer 50 having a low thermal conductivity is interposed between the window frame mounting peripheral portion 20 and the window pedestal 9. At the lower edge portion for attaching the window frame, warm and moist air in the room enters through a gap between the inner window frame 17 and the window sill 9, and the metal window frame body 18 is cooled by the outside air outside the room. Prevents the dew condensation from occurring at the periphery of the window frame main body because the metal portion and the window frame mounting wood are not in contact with each other without contact with the window frame mounting peripheral portion 20 at the lower end of the window frame. it can. Moreover,
The gap between the window frame attaching peripheral edge portion 20 and the window frame attaching wood 8 (window sill 9) is formed by the sealing projecting portion 52 projecting from the gaps 23 formed between the reinforcing ribs 24. Since the metal part of the window frame body cooled by the outside air does not come into contact with the warm and humid air in the room, since the metal part of the window frame body is kept in close contact (seal) and the airtightness is maintained, the periphery of the window frame body is prevented. This can prevent the occurrence of dew condensation.

Here, the window frame main body is of a fixed type, but the window frame main body can be, for example, pulled, slid, opened,
Of course, it may be of a type that can be opened and closed, such as a drain kip.

[0049]

According to the present invention, a window cooled by the outside air is provided by interposing a thermally insulating material having a low thermal conductivity between the periphery of the window frame and the wood for mounting the window frame. Since the metal part of the frame body does not come into contact with the warm and humid air in the room, and the metal part and the wood for mounting the window frame are not in contact with each other, dew condensation occurs at the periphery of the window frame body. Can be prevented,
It is possible to prevent the adjacent window frame mounting wood from decaying or generating mold.

Further, the gap between the window frame mounting peripheral portion and the window frame mounting wood is closely adhered to by the thermal insulating intervening material disposed in the gap formed between the reinforcing ribs on the window frame peripheral portion ( (Sealing), and the airtightness is maintained, so that the warm and moist air in the room does not come into contact with the metal part of the window frame body cooled by the outside air. Can be prevented from occurring.

Further, the gap between the window frame mounting peripheral portion and the window frame mounting wood is tightly sealed by a sealing member interposed in the gap formed between the reinforcing ribs on the window frame peripheral portion. Since the airtightness is maintained, there is no contact with the warm and moist air in the room, so that dew condensation can be prevented from occurring at the periphery of the window frame main body, and the adjacent window frame mounting wood can be removed. It can be prevented from spoiling and producing mold.

Furthermore, a window frame cooled by the outside air is provided by interposing a thermally insulating intermediate having a low thermal conductivity between the window frame mounting peripheral portion of the window frame body and the window frame mounting wood. Prevents condensation from forming around the window frame body because the metal part of the body does not come into contact with the warm and humid air in the room and the metal part and the wood for mounting the window frame are not in contact. it can. In addition, since the hermeticity is maintained by the sealing projecting portion projecting into the gap formed between the reinforcing ribs provided on the peripheral portion for mounting the window frame, the heat insulating property is further improved, and dew condensation is prevented. Can be.

Therefore, in the structure of the window of the building according to the present invention, there is almost no gap between the window frame main body, which is the metal portion of the window frame, and the window frame mounting wood.
The airtightness and the dew condensation prevention function are significantly improved, and a window structure of a building having excellent durability can be provided.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a window structure of a building according to a first embodiment of the present invention.

FIG. 2 is an enlarged view of a portion B in FIG.

FIG. 3 is an enlarged sectional view of a main part showing another embodiment of the thermally insulating interposer 30 having a window structure of a building according to the first embodiment of the present invention.

FIG. 4 is an enlarged sectional view of a main part of a structure of a window of a building according to a second embodiment of the present invention, similar to FIG. 2;

FIG. 5 is an enlarged sectional view of a main part of a window structure of a building according to a third embodiment of the present invention, similar to FIG. 2;

FIG. 6 is an enlarged sectional view of a main part of a structure of a window of a building according to a fourth embodiment of the present invention, similar to FIG. 2;

FIG. 7 is a sectional view of a main part of a conventional window structure of a building.

FIG. 8 is a partially cutaway perspective view of another window structure of a conventional building.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Window structure 2 ... Glass window 6 ... Window frame 8 ... Wood for window frame mounting 9 ... Window sill 10 ... Structural plywood 12 ... Column 14 ... Insulation material 16. ..Siding materials 17, 19 ... inner window frame 18 ... window frame body 20 ... peripheral portion for mounting window frame 22 ... projecting portion 23 ... gap 24 ... reinforcing rib 30 ...・ Thermal insulating material 30 ′ ・ ・ ・ Thermal insulating material 40 ・ ・ ・ Ceiling member 50 ・ ・ ・ Thermal insulating material 52 ・ ・ ・ Ceiling protruding part 60 ・ ・ ・ Sealing material

Claims (8)

[Claims] 1. A window frame having a window frame main body and mainly made of metal, and a window frame mounting wood formed to bend around the window frame and to which the window frame is mounted. In the window structure of the building, the heat conduction between the window frame body and the window frame mounting wood is hindered between at least the lower part of the window frame body peripheral edge portion of the window frame body and the window frame mounting wood. By interposing a thermally insulating intermediate having a low thermal conductivity, a non-contact state is provided between the window frame mounting peripheral portion of the window frame main body and the window frame mounting wood. Window structure. 2. A window frame having a window frame body and mainly made of metal, and a window frame mounting wood formed to bend around the window frame and to which the window frame is mounted. In the window structure of the building, the window frame main body and the window frame mounting are provided in a gap formed between reinforcing ribs provided so as to protrude at least at a window frame mounting peripheral edge portion below the window frame main body. A window structure for a building, comprising a thermally insulating interposer with low thermal conductivity that inhibits heat conduction with wood for use and maintains airtightness. 3. A window frame having a window frame body and mainly made of metal, and a window frame mounting wood formed to bend around the window frame and to which the window frame is mounted. In a window structure of a building, an elastic body that maintains airtightness is provided in a gap formed between reinforcing ribs provided so as to protrude at least at a window frame mounting peripheral portion below the window frame body. A window structure of a building, wherein a sealing member comprising: 4. A window frame having a window frame body and mainly made of metal, and a window frame mounting wood formed to bend around the window frame and to which the window frame is mounted. In the window structure of the building, the heat conduction between the window frame body and the window frame mounting wood is hindered between at least the lower part of the window frame body peripheral edge portion of the window frame body and the window frame mounting wood. By interposing a thermally insulating intermediate having a low thermal conductivity, a non-contact state is established between the window frame mounting peripheral portion of the window frame main body and the window frame mounting wood, and the window of the window frame main body A sealing projecting portion which is provided in a gap formed between reinforcing ribs provided so as to project from the frame mounting peripheral portion to maintain airtightness is formed on the thermally insulated material. The window structure of a building characterized by the following. 5. A sealing member made of an elastic body for maintaining airtightness is further interposed between the window frame mounting peripheral portion of the window frame main body and the window frame mounting wood. Structure of the window of the building described in. 6. The thermal insulation material according to claim 1, wherein the thermal conductivity at 27 ° C. is 0.20 Kcal / m · hr · ° C. or less. Structure of the window of the building described in. 7. The thermal insulation interposed member is a flexible thin layer formed from one kind of resin selected from the group consisting of polyvinyl chloride, polyurethane, polystyrene and polyolefin. A window structure for a building according to claim 6. 8. The structure of a building window according to claim 6, wherein the flexible thin layer body is a non-foamed resin sheet or a foamed resin sheet having an expansion ratio of 5 times or less.