JPH1046921A - Airtight material of sash, airtight structure of opening, and work execution method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure airtightness by attaching an airtight material which is made of resin foaming body and shrinks when it is attached and is inflated with age after it is attached between a sash frame and a peripheral fringe member of an opening which is provided in the circumference of the sash frame. SOLUTION: For example, a low density polyethylene resin foaming body is compressed in the direction of thickness at the width of distorsion in an elastic deformation region to form an airtight material 1, and it is restored to the original shape and thickness after it is left for several days and several ten days. Next, when sash frames 2, 21 are attached to an opening on a wall body, the airtight material 1 is attached to airtight material mounting parts A, B, C, D of the sash frames 2, 21 in advance. Then, one end of the sash frames 2, 21 is attached to an outer wall material 6, a frame 3 is inserted from an inner wall material 7, and one end of the frame 3 is overlapped on the other end of the sash frames 2, 21 on which the airtight material 1 is attached to attach it. When the frame 3 is attached, there is a clearance H between a surface of the airtight material 1 and a rear surface of the frame 3, but the airtight material 1 recovers its shape with age to realize airtightness between the sash frames 2, 21 and the frame 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airtight material of a sash attached between a sash frame and an opening peripheral member provided around the sash frame, and an airtight structure of the opening provided with the airtight material. And its construction method.

[0002]

2. Description of the Related Art A conventional airtight structure of an opening is a structure in which an airtight material is attached between a sash frame and the periphery of the opening where the sash frame is provided. What is described in 58180 is known. The airtight structure of the opening described in the above publication, at the left and right ends of the draining plate disposed between the window frame and the outer wall, between the inclined portion of the draining plate and the window frame, and between the inclined portion and the outer wall Each of the window seals and the outer wall can be reliably sealed by the drain plate and the airtight material.

However, in the conventional opening airtight structure described in the above publication, in the case of the construction method in which the outer wall panel is constructed first, it is necessary to attach an airtight material during the construction of the outer wall. Due to the effects of dust during construction, it is difficult to ensure the reliability of the airtight material. In order to ensure airtightness, it is necessary to make the thickness of the airtight material larger than the gap size and to compressively deform the airtight material. Deformation or peeling may occur.

The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a sash airtight material which is highly reliable and can ensure airtightness.
An object of the present invention is to provide an airtight structure of an opening and a method of constructing the same.

[0004]

Means for Solving the Problems The present invention has been made to achieve the above object, and the invention according to claim 1 has a sash frame and a peripheral edge of an opening provided around the sash frame. In the airtight material of the sash attached to the member, the airtight material is made of a resin foam having a shape recovering property, which contracts at the time of mounting and expands to a predetermined shape over time after the mounting.

According to a second aspect of the present invention, there is provided an airtight structure of an opening in which an airtight material is attached between a sash frame and an opening peripheral member provided around the sash frame. 2. The shrinkable member expands to a predetermined shape with the elapse of time after installation, and the space between the sash frame and the opening peripheral member is made airtight by recovering the shape of the airtight material.
It is an airtight structure of the opening provided with the airtight material described.

According to a third aspect of the present invention, there is provided a method for constructing an airtight structure of an opening, wherein the airtight material is provided by providing an airtight material between a sash frame and an opening peripheral member provided around the sash frame. Claims: After the airtight material is attached to the sash frame or the peripheral member of the opening, the sash frame and the peripheral member of the opening are attached, and thereafter the space between the sash frame and the peripheral member of the opening is made airtight with time by recovering the shape of the airtight material. 1
It is a construction method of an opening airtight structure provided with the airtight material described in the above.

In the present invention, the sash frame is a frame provided for attaching a window, a door, or the like to an opening of a building, and is fixed to the opening to be attached.
The opening peripheral member is a member attached to the periphery of the opening to which the sash frame is attached, such as a frame, a decorative frame, and a magsa.

In the present invention, the resin foam having shape recovery properties is a resin foam which is shrunk by a strain width in an elastic deformation region and is capable of recovering shape, for example, in a thickness direction. A typical example is a resin foam made of low-density polyethylene, which is compressed in the thickness direction and left in this state for several days. When the above-mentioned resin foam is left at normal temperature and normal pressure, the shape recovers to its original thickness after several days to several tens of days. A method for producing a resin foam having such shape recovery properties is disclosed in Japanese Patent Application No. 7-299654.
This is disclosed in Japanese Patent Application No. 8-7244.

The shape of the hermetic material having shape recovery properties is not particularly limited, but may be any shape such as a tape, a square, a circle, a semicircle, and an ellipse.
Further, if an adhesive layer is formed on the mounting surface to which the airtight material is attached, and the adhesive layer is attached via the adhesive layer, it is convenient to use.

[0010]

According to the first to third aspects of the present invention, the airtight material of the sash is made of a resin foam having a shape recovering property, which contracts at the time of attachment and expands to a predetermined shape with the elapse of time after the attachment. Therefore, at the time of mounting, a gap can be formed between the sash frame and the opening peripheral member provided around the sash frame, so that the sash frame can be accommodated.

As a result, the sash frame and the peripheral member of the opening can be provided without hindering the airtight material at the time of construction, so that damage and peeling of the airtight material can be prevented and reliability can be improved. In addition, since the hermetic material expands to a predetermined shape and recovers its shape after being attached, it can fill the gap between the sash frame and the peripheral member of the opening, thereby ensuring airtightness.

According to the third aspect of the present invention, the airtight material is attached to the sash frame or the opening peripheral member, and then the sash frame and the opening peripheral member are attached.
Less susceptible to dust at construction sites.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of the present invention. FIG. 1A is a longitudinal sectional view of the opening, FIG. 1B is a transverse sectional view of the opening, FIG. ) The figure is an enlarged view of part A of (A), and (C) is the figure immediately after the airtight material is attached.
(D) The figure shows the state when time has passed after the airtight material was attached. 2A is a perspective view of the airtight material, FIG. 2B is a cross-sectional view of the airtight material before shape recovery, and FIG. 2C is a cross-sectional view of the airtight material after shape recovery. FIG. 3 is another embodiment of the present invention,
(A) is a cross-sectional view of the opening, (B) and (C) are enlarged views of the E part of (A), (B) is immediately after the airtight material is attached, (C) is Shows the state when aged after the airtight material was attached.

First, an embodiment of the present invention will be described with reference to FIGS. 1 and 2, 1 is an airtight material of a sash, 11 is a resin foam having shape recovery properties, 12 is an adhesive layer, 13 is release paper, 2 is a sash frame, 3 is a frame, 4 is a window, 5 the screen door, 6 siding, 7 mounting portion of the inner wall member, to D airtight material, H is the gap, h ₀ is the thickness of the airtight material before shape recovery, h ₁ is after shape recovery airtight material Is the thickness.

As shown in FIG. 2, the airtight material 1 of the sash according to the present invention is made of a resin foam 11 having shape recovery properties, and is formed in a tape shape having a width of 15 mm. An adhesive layer 12 is formed on the back surface, and a release paper 13 for protecting the adhesive layer 12 is attached thereon.

The above-mentioned resin foam 11 having shape recovery properties
Is obtained by the following production method. That is, low density polyethylene (trade name G20 manufactured by Sumitomo Chemical Co., Ltd.)
1) 100 parts by weight, 20 parts by weight of azodicarbonamide as a foaming agent (decomposition peak temperature: 200 ° C.), and 2 parts by weight of zinc stearate were used in a single-screw extruder having a diameter of 65 mm (1).
(Set at 35 ° C.) and kneaded. The kneaded material is extruded into a sheet having a thickness of 2.4 mm, and then 750 k
An electron beam of v × 5 Mrad is irradiated on both sides of the sheet to crosslink, and the crosslinked product is heated and foamed at 240 ° C. to have a thickness of 8 m.
m, a foaming ratio of 41 times, an average cell diameter of 720 μm, and a raw material foam having a closed cell ratio of 80% were obtained.

After the raw material foam is cut into a predetermined size, an air passage penetrating through the front and back surfaces of the cut piece has a diameter of 50 mm.
Using a 0 μm needle, a hole interval of 10 mm (a hole density of 1)
Hole / cm ² ). Next, the perforated raw material foam is compressed between press plates provided with a 1 mm spacer, and the compressed state is maintained for 12 hours to obtain the resin foam 11 having the above-described shape reversibility.

Resin foam 11 having the above-mentioned shape reversibility
Means that the thickness h ₀ before shape recovery shown in FIG.
When this was left in the air, the thickness gradually recovered, and after 50 days, recovered to 96% of the thickness (8 mm) of the raw material foam. When the thickness after the shape recovery and h _1, h ₁ is about 7.6 mm.

As shown in FIG. 1, the opening of this embodiment is
The sash frames 2, 21, 22, 23 and the sash frames 2, 2
1 and a frame 3 provided around the sash frames 2 and 21.
Is attached. One end of each of the sash frames 2, 21,... Is fixed to the outer wall material 6 with a screw or the like, and between the other ends of the sash frames 2, 21,.
The airtight material 1 is mounted on a mounting portion of the airtight material 1 indicated by D).

As shown in FIG. 1 (c), the airtight material 1
At the time of installation, the airtight material 1 contracts to a thickness of about 1 mm, and a gap H of about 2 mm is formed between the front surface of the airtight material 1 and the back surface of the frame 3. As shown in FIG. Over time, the thickness after the shape recovery becomes 6 mm, so that the space between the sash frame 2 and the frame 3 is airtight.

Next, a description will be given of a construction method for forming an airtight structure of the opening configured as described above. The building of this embodiment has an outer wall material 6 attached to a structural material 61 and an inner wall material 7.
Thus, a wall is formed. The sash frames 2, 21,... Are attached to the openings of this wall body.
Airtight material 1 mounting portions A, B, C, D of sash frames 2, 21,.
The airtight material 1 is attached to the part in advance. The mounting method is
The release paper 13 of the airtight material 1 is peeled off to expose the pressure-sensitive adhesive layer 12, and the pressure-sensitive adhesive layer 12 is adhered and attached.

Attach one end of each of the sash frames 2, 21 to the outer wall material 6. Then, the picture frame 3 is inserted from the inner wall material 7 side, and one end of the picture frame 3 is overlapped and attached to the other ends of the sash frames 2, 21... To which the airtight material 1 is attached. Picture frame 3
At the time of mounting, a gap H is formed between the front surface of the hermetic material 1 attached to the sash frames 2, 21,... And the back surface of the picture frame 3. The space between the sash frames 2, 21,... And the frame 3 becomes airtight.

As described above, in the present embodiment, the airtight material 1 of the sash is made of a resin foam 11 having a shape recovering property, which contracts at the time of mounting and expands to a predetermined shape with the elapse of time after mounting. Because there is, at the time of installation, sash frames 2, 21
A gap H can be formed between the frame 3 and the frame 3 provided therearound. As a result, when the frame 3 is attached, the airtight material 1 is not rubbed and damaged or peeled off.

Since the hermetic material 1 expands to a predetermined shape after installation and recovers its shape, it fills the gaps between the sash frames 2, 21... And the frame 3 to ensure airtightness. Can be secured. Furthermore, since the airtight material 1 is previously attached to the sash frames 2, 21,..., The airtight material 1 is not easily affected by dust even in a dusty construction site.

Next, another embodiment of the present invention will be described with reference to FIG. In FIG. 3, the same portions as those in the above embodiment are denoted by the same reference numerals, different portions are denoted by different reference numerals, the description of the same reference numerals is omitted, and the portions denoted by different reference numerals are described. 1a
Is an airtight material, 8 is a sash frame, 9 is a picture frame, 10 is an openable / closable door, and E and F are mounting portions of the airtight material.

In this embodiment, the hermetic member 1a is made of a resin foam having a shape recovering property, like the hermetic member 1 of the above embodiment, and is formed in a tape shape with an adhesive layer. The thickness of the airtight material 1a is 5 mm before the shape is recovered (before pasting on the sash frame 8), and is 10 mm after the shape is recovered (about one month after the pasting). The airtight material 1a
Are previously attached to the sash frame 9 via an adhesive layer. The sash frame 8 is attached to a structural material 20 provided in the opening of the building, the frame 9 is inserted from the interior material 7 side, and the end of the sash frame 8 to which the airtight material 1a is attached and the frame 9 It is designed to overlap one end.

As shown in FIG. 3B, when the frame 9 is inserted, a gap H of about 3 mm is formed between the surface of the airtight material 1a attached to the sash frame 8 and the frame 9. .
Thereafter, the gap H decreases as the thickness increases with time due to the recovery of the shape of the airtight material 1a.
(C) As shown in the figure, the space between the sash frame 8 and the frame 9 is airtight.

As described above, in the present embodiment, the airtight material 1a of the sash is made of a resin foam having a shape recovering property, which contracts at the time of mounting and expands to a predetermined shape after mounting, and At the time of attachment, a gap H can be formed between the sash frame 8 and the frame 9 provided around the sash frame 8 so as to be accommodated. As a result, when the frame 9 is attached, the airtight material 1a is rubbed and damaged,
It does not peel off. The airtight material 1a is
Since it expands to a predetermined shape after installation and recovers its shape, the gap between the sash frame 8 and the frame 9 is filled, and airtightness can be reliably ensured.

[0029]

According to the first aspect of the present invention, the airtight material of the sash according to the first aspect expands to a predetermined shape with the passage of time after installation and recovers its shape.
Since airtightness can be reliably ensured, it is effective in preventing draft from flowing into the living room, and is also effective in preventing dew condensation on the heat insulating material provided in the wall.

In the airtight structure of the opening according to the second aspect, a gap can be formed between the sash frame and the opening peripheral member provided around the sash frame at the time of mounting, so that the airtight material can be accommodated. Can be prevented from being peeled or scratched, and has the effect of increasing reliability.

According to the third aspect of the present invention, the method of constructing the airtight structure of the opening is to attach the airtight material to the sash frame or the peripheral member of the opening and then to attach the sash frame and the peripheral member of the opening, so that a lot of dust is generated. Dust adheres to the airtight material at the construction site, and peeling of the airtight material and reduction in airtightness can be prevented.

[Brief description of the drawings]

FIG. 1 is an embodiment of the present invention, in which (a) is a longitudinal sectional view of an opening, (b) is a transverse sectional view of an opening, and (c) and (d) are (a) and (b). (A) is an enlarged view of a portion A in the figure, (C) shows a state immediately after the airtight material is attached, and (D) shows a state after the airtight material is attached with time.

2A is a perspective view of the airtight material, FIG. 2B is a cross-sectional view of the airtight material before shape recovery, and FIG. 2C is a cross-sectional view of the airtight material after shape recovery.

3A and 3B show another embodiment of the present invention, wherein FIG. 3A is a cross-sectional view of an opening, and FIGS. 3B and 3C are enlarged views of a portion E in FIG. (B) The figure shows immediately after the airtight material is installed.
(C) The figure shows the state when aged after attaching the airtight material.

[Explanation of symbols]

1 sash front attachment portion H clearance h ₀ shape recovery of the airtight material 11 resin having a shape recovery foam 12 adhesive layer 2 sash frame 3 frame A~D airtight material of the airtight material thickness h ₁ shape after recovery Thickness of airtight material 1a Airtight material of sash 8 Sash frame 9 Frame E, F Mounting part of airtight material

Claims (3)

[Claims] 1. An airtight material of a sash attached between a sash frame and an opening peripheral member provided around the sash frame, wherein the airtight material shrinks at the time of installation, and a predetermined time elapses after the installation. Expand into shape,
An airtight material for a sash, comprising a resin foam having shape recovery properties. 2. In an airtight structure of an opening in which an airtight material is attached between a sash frame and an opening peripheral member provided around the sash frame, the airtight material is contracted at the time of installation, and 2. The airtight structure of an opening provided with an airtight material according to claim 1, wherein the airtight material is expanded to a predetermined shape over time to make the space between the sash frame and the opening peripheral member airtight by recovering the shape of the airtight material. 3. A method for constructing an opening airtight structure in which an airtight material is provided by providing an airtight material between a sash frame and an opening peripheral member provided around the sash frame. 2. The airtightness according to claim 1, wherein the sash frame and the opening peripheral member are attached to the opening peripheral member in advance, and thereafter, the space between the sash frame and the opening peripheral member is made airtight by recovering the shape of the airtight material over time. Construction method of airtight structure with openings provided with materials.