JPH11107638A - Airtight structure of sash frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an airtight sash frame, requiring for no labor, at a low cost by a method wherein a frame member is disposed on the back side of the side edge part on the indoor side of the sash frame, and an airtight material adhered to the frame member is attached to the back of the side edge part on the indoor side of the sash frame. SOLUTION: The outdoor side formed of aluminum of a sash frame 1 is pointed to the outside of a room and mounted on a column and a beam arranged in a wall body. Thereafter, a frame edge member 2 is inserted in the back side of the side edge on the indoor side of the sash frame 1 and by deforming the fin-shaped protrusion of an airtight material 3 and adhering it to the frame member 3, mounting is effected. Further, the sash frame 1 is fixed at the frame member 2 by a screw 4. Further, the airtight material 3 is molded by using soft polyvinylchloride resin and molded integrally with the indoor side of the sash frame 1 formed of rigid polyvinylchloride resin. A gap between the sash frame 1 and the frame member 2 is brought into an airtight state by the airtight material 3. This constitution prevents the occurrence of vapor condensation to the internal part of the wall body due to penetration of steam in a room at a low cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airtight structure of a sash frame attached to an opening of a wall.

[0002]

2. Description of the Related Art Conventionally, a sash frame made of metal such as aluminum is provided with a frame member on the back side of the indoor side edge portion and attached with screws or the like, but between the sash frame and the frame. A gap is easily created, and water vapor in the room penetrates into the back side of the sash frame through the gap, causing internal dew condensation inside the wall body and corroding structural members, and dew water coming out to the indoor side There were problems such as soiling of interior materials.

Therefore, in the structure for preventing dew condensation on a sash described in Japanese Patent Publication No. 6-63409, a heat insulating member that insulates the sash frame and the frame member from each other is interposed, and the fin-shaped projections that come into close contact with the frame member. There is known an air-tight material provided with a heat-insulating member integrally attached to the back surface of the heat insulating member.

[0004]

However, in the sash dew-prevention structure described in the above publication, the cross-sectional area of the heat insulating member is large and the material cost is high, or the heat insulating member is attached to the sash frame in a separate step. There was a problem that it took time for construction.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems in the prior art, and an object of the present invention is to provide an inexpensive, airtight structure of a sash frame which does not require much work. It is.

[0006]

According to the first aspect of the present invention, a frame member is provided on a rear surface side of an indoor side edge portion of a sash frame, and is provided with an airtight seal provided with fin-shaped projections which are in close contact with the frame member. The material is attached to the back of the indoor side edge of the sash frame,
An airtight structure of the sash frame, characterized in that the space between the sash frame and the frame member is airtight.

According to a second aspect of the present invention, the airtight material is formed integrally with the sash frame, the interior of the sash frame is made of a hard synthetic resin, and the exterior is made of a metal. It is an airtight structure of the described sash frame.

[0008]

In the airtight structure of the sash frame according to the first aspect, an airtight material having fin-shaped projections closely attached to the frame member is attached to the back surface of the indoor side edge of the sash frame, and the sash frame, the frame member and Since the space is airtight, it is possible to reduce the cost of preventing dew condensation inside the wall due to the intrusion of water vapor in the room.

In the airtight structure of the sash frame according to the second aspect of the present invention, since the airtight material is formed integrally with the sash frame in the invention of the first aspect, the inside of the wall body can be installed without any trouble of construction. Dew condensation can be prevented.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show an embodiment of the present invention. FIG. 1A is a cross-sectional view of an indoor side edge portion of a sash frame, and FIG. 1B is a diagram showing an airtight structure of a sash frame and a frame member. FIG. 2 is a cross-sectional view showing a structure for attaching the sash frame and the frame, and FIG. 3 is a longitudinal sectional view showing a structure for attaching the sash frame and the frame.

Reference numeral 1 denotes a sash frame.
Is attached to the opening of a building and used by fitting a window sash. The sash frame 1 is an aluminum resin composite sash frame in which the indoor side is formed of hard vinyl chloride resin and the outdoor side is formed of aluminum.

A wooden frame member 2 is disposed on the rear side of the indoor side edge portion of the sash frame 1, and an airtight material 3 having fin-shaped projections which are in close contact with the frame member 2 is used for the sash frame 1. The sash frame 1 and the frame member 2 are hermetically sealed (see FIG. 1B) by being attached to the back surface of the indoor side edge portion (see FIG. 1A). FIG.
FIG. 2B is an enlarged view of the portion A in FIG. 2; however, the portion B in FIG. 2 and the portions C and D in FIG. 3 also have the same hermetic structure as that in FIG. I have.

The airtight material 3 is made of a soft vinyl chloride resin, and is integrally formed with the indoor side of the sash frame 1 made of a hard vinyl chloride resin.

1 to 3, reference numeral 4 denotes a screw, and the sash frame 1 is fixed to the frame member 2 with the screw 4. Reference numeral 5 denotes an inner wall material, and the inner wall material 5 forms an inner wall surface in the room. Reference numeral 6 denotes a floor surface material, and the floor surface material 6 forms a floor surface in a room.

The sash frame 1 is constructed by mounting the sash frame 1 to a structural material such as a pillar or a beam provided inside a wall with the outdoor side formed of aluminum facing the outside.
The frame member 2 is inserted into the back side of the indoor side edge portion, and the fin-like projections of the airtight material 3 are deformed to attach the airtight material 3 to the frame member 3 in close contact.

The sash frame 1 constructed as described above
Since the space between the sash frame 1 and the frame member 2 is made airtight by the airtight material 3, it is possible to prevent dew condensation inside the wall caused by intrusion of water vapor in the room. In addition, since the airtight material 3 having the fin-shaped protrusions is merely attached to the rear side of the indoor side edge of the sash 1, the material used is small and the cost can be reduced. In addition, since the airtight material 3 is integrally formed with the sash frame 1, installation work can be omitted during construction.

[0017]

The airtight structure of the sash frame according to the first aspect is as follows.
An airtight material having fin-shaped protrusions that are in close contact with the frame member is attached to the back surface of the indoor side edge of the sash frame, and the space between the sash frame and the frame member is airtight, so that water vapor in the room enters. To prevent dew condensation inside the wall caused by
It can be cheap.

In the airtight structure of the sash frame according to the second aspect of the present invention, since the airtight material is formed integrally with the sash frame in the first aspect of the present invention, the inside of the wall body can be installed without any trouble of construction. Dew condensation can be prevented.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an embodiment of the present invention, in which (a) is a sectional view of an indoor side edge of a sash frame, and (b) is a sectional view showing an airtight structure of the sash frame and a frame member. .

FIG. 2 is a cross-sectional view showing a mounting structure of a sash frame and a frame.

FIG. 3 is a longitudinal sectional view showing a structure for attaching a sash frame and a frame.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sash frame 2 Frame member 3 Airtight material

Claims (2)

[Claims] 1. A frame member is disposed on the back side of the indoor side edge of the sash frame, and an airtight material having fin-shaped projections closely contacting the frame member is provided on the rear side of the indoor side edge of the sash frame. The airtight structure of the sash frame, wherein the airtightness is provided between the sash frame and the frame member. 2. An airtight material is formed integrally with the sash frame,
The airtight structure of a sash frame according to claim 1, wherein the indoor side of the sash frame is made of a hard synthetic resin and the outdoor side is made of a metal.