JP5419092B2 - Double window - Google Patents

Description

  The present invention relates to a double window provided with an outer window attached to the outdoor side of an opening for attaching a window of a building and an inner window attached to the indoor side of the opening.

Double windows with external and internal windows attached to the opening for installing windows in buildings are superior in heat insulation and soundproofing, so in recent years, internal windows should be attached to existing windows to make double windows. Has been done.
For example, as disclosed in Patent Document 1, the window frame of the inner window, the upper frame connecting the upper frame body and the mounting body, the lower frame connecting the lower frame body and the mounting body, the vertical frame body and the mounting body The left and right vertical frames are connected to each other, and each mounting body is attached to the indoor side of the opening for attaching the window of the building, and a double window with the outer window attached to the outdoor side of the opening. Has been proposed.

Japanese Utility Model Publication No. 62-22623

In the conventional double window described above, the upper frame, the lower frame, and the left and right vertical frames constituting the window frame of the inner window are provided with a main body for attaching a shoji and an attachment for attaching to the opening. Therefore, the number of members constituting the window frame is large, resulting in an expensive inner window.
In order to solve this problem, it is conceivable that the upper frame, the lower frame, and the left and right vertical frames constituting the window frame of the inner window have a shape corresponding to the main body for mounting the shoji. Then, when the inner window is made of resin, the lower frame has a lower rigidity than the aluminum lower frame, so the shoji mounting part of the lower frame, for example, the lower rail part, may be recessed downward due to the weight of the shoji. There is a risk that stress concentrates on a portion of the lower inner surface of the opening for attaching the window, where the above-mentioned lower frame is attached to the shoji mounting portion, and the lower inner surface is deformed.
In particular, when the resin inner window is attached to the opening of the bathroom whose resin frame is attached to the top and bottom of the opening and the vertical inner surface to improve the water resistance as described above, the shoji mounting portion of the lower frame in the resin frame comes into contact. Stress may concentrate on the part, and the resin frame may be greatly deformed.

  An object of the present invention is to provide a double window in which the number of members constituting the window frame can be reduced to an inexpensive inner window, and the lower inner surface of the opening for mounting the building window is not deformed by stress concentration. .

The present invention is a double window comprising an outer window attached to the outdoor side of an opening for installing a window of a building, and an inner window attached to the indoor side of the opening,
Window frame of said window comprises a lower frame made of resin having a shoji mounting portion, and a resin of the upper frame, the vertical frame of the left and right resin,
Attached to the lower inner surface of the opening is an aluminum lower frame attachment having a window frame mounting portion that contacts the entire length of the resin lower frame in the out-of-plane direction. The window frame of the inner window is out of the plane of the lower frame. The double window is characterized in that the entire length is in contact with the window frame mounting portion of the lower frame attachment, the upper frame is mounted on the upper inner surface of the opening, and the left and right vertical frames are mounted on the left and right vertical inner surfaces of the opening.

According to the present invention, the lower frame attachment includes an indoor window frame mounting portion and an outdoor mounting portion, and the mounting portion is fixedly attached to the lower inner surface of the opening with a fixing tool, and attached to the window frame mounting portion. It can be a double window that touches the lower frame of the window frame .
In this way, the outer window and the inner window can be separated from each other in the out-of-plane direction so that a space can be formed between them, so that the heat insulation performance and the sound insulation performance are more excellent.
Moreover, with no exist fasteners to the window frame mounting portion of the lower frame attachment, because are against the lower frame of the window frame of the inner window to the window frame mounting portion, in a state of attaching the inner window, the window frame Condensed water or the like does not flow from the attachment portion to the lower inner surface of the opening portion, and the water resistance of the lower inner surface of the opening portion is not impaired even after the inner window is attached.

The present invention has an upward ridge on the indoor side portion of the window frame attachment portion of the lower frame attachment,
It can be set as the double window which the outdoor side end of the attachment part of the said lower frame attachment is contacting on the attachment piece provided in the indoor side surface of the lower frame of an outer window.
If it does in this way, the indoor side surface of the lower part of a window frame contacts an upward protrusion, and it does not slip down indoors, but can position a window frame.
In addition, a part of the load applied to the lower frame attachment can be supported by the lower frame of the outer window.

In the present invention, the window frame attachment portion of the lower frame attachment has an upward concave shape continuous in the left-right direction,
The left and right vertical frames constituting the window frame of the inner window have an indoor inward piece and an outdoor inward piece, and the lower end portion thereof fits into the window frame attachment portion of the lower frame attachment,
The upper frame and the lower frame may be double windows whose both ends in the longitudinal direction fit between the indoor inward pieces and the outdoor inward pieces of the left and right vertical frames.
In this way, the lower end portion of the vertical frame is fitted in the window frame attaching portion so as to be positioned in the indoor outside direction, and both longitudinal end portions of the upper frame and the lower frame are aligned with the indoor inward pieces of the left and right vertical frames. It is positioned in the indoor outside direction by fitting between the outdoor inward piece.
Therefore, after attaching the left and right vertical frames, the upper frame and the lower frame can be attached to configure the window frame, and the window frame can be easily attached.

The present invention attaches the left and right vertical frames to the left and right vertical inner surfaces of the opening with an adhesive,
Adhering the upper frame to the upper inner surface of the opening with an adhesive, and fixing it with a fixing tool,
It can be set as the double window which made the longitudinal direction both end surface of the said upper frame and the lower frame contact | connect the inner surface of a right-and-left vertical frame.
In this way, since the left and right vertical frames and the upper frame can be attached and attached, the attachment of the window frame is easy.
In addition, since the upper frame is fixed with a fixing tool, the upper frame does not fall off even if the adhesive is peeled off, and the upper frame and the lower frame can hold the vertical frame against the vertical inner surface of the opening so that the adhesive peels off. Even the vertical frame will not fall down.
Therefore, the window frame can be firmly attached.

In the present invention, the upper surface of the lower frame attached to the window frame attaching portion on the indoor side of the lower frame attachment can be made flush with or slightly higher than the upper surface of the attaching portion on the outdoor side of the lower frame attachment.
If it does in this way, dew condensation water etc. do not accumulate on the upper surface of the lower frame of an inner window, but it is possible to drain it towards an outer window via the attachment part of a lower frame attachment.

In the present invention, the outer window is already installed, the lower frame attachment and the inner window are newly installed, and the double window can be refurbished.
In this way, an existing window having only an outer window can be easily refurbished into a double window having excellent heat insulation performance and sound insulation performance.

According to the present invention, the number of members constituting the upper frame, the lower frame, and the left and right vertical frames constituting the window frame of the inner window is small, and the inner window is inexpensive.
In addition, since the load applied to the shoji mounting portion of the lower frame is supported by the entire surface of the lower frame attachment, stress is not concentrated on the lower inner surface of the opening, and the lower inner surface is not deformed.

It is a longitudinal cross-sectional view of the double window which shows embodiment of this invention. It is a cross-sectional view of a double window showing an embodiment of the present invention. It is an enlarged view of a lower frame attachment part. It is a perspective view of a lower frame attachment, a lower frame, an upper frame, and a vertical frame. It is a perspective view of a plug. It is an enlarged view of an upper frame attachment part. It is an enlarged view of a vertical frame attachment part. It is a longitudinal cross-sectional view which shows the 2nd Embodiment of this invention. It is a cross-sectional view which shows the 2nd Embodiment of this invention. It is a perspective view of a plug. It is the A section enlarged view of FIG.

As shown in FIG. 1 and FIG. 2, an outer window 2 attached to the outdoor side of an opening 1 for attaching a window of a building and an inner window 3 attached to the indoor side of the opening 1 are provided. This is a double window. The outer window 2 is a semi-external type.
The double window of this embodiment is a double window of a renovation in which a new inner window 3 is retrofitted to an existing window provided with an existing outer window 2.
The outer window 2 is a sliding window in which a shoji 2b is mounted on the window frame 2a. The upper frame 20, the lower frame 21, and the left and right vertical frames 22 constituting the window frame 2a are the interior side surface 20a, 21a and 22a are each provided with the attachment piece 23 which goes to the indoor side of an out-of-plane direction (outdoor direction) rather than the indoor side surfaces 20a, 21a, and 22a.
A resin frame 5 is provided over each of the mounting pieces 23 and the interior material 4 of the building, and the fixing tool 6 is fixed to the building frame from each of the mounting pieces 23, thereby fixing the outdoor portion of each resin frame 5. The interior side portion of each resin frame 5 is fixed to the interior material 4 with a fixing tool 7.
This fixing tool 7 is covered with a decorative cap 7a so that it cannot be seen from the room.

Each of the resin frames 5 constitutes an upper inner surface 1a, a lower inner surface 1b, and a vertical inner surface 1c of the opening 1, and the water resistance of the portion between the outer window 2 and the interior material 4 of the opening 1, that is, the indoor side portion. It has improved.
As a result, it is a bathroom window.

The inner window 3 is a sliding window in which a shoji 3b is attached to the window frame 3a, and the window frame 3a and the shoji 3b are made of resin, and the inner window 3 is made of resin.
The window frame 3a includes an upper frame 30, a lower frame 40, and left and right vertical frames 50. The upper frame 30 and the lower frame 40 are provided with shoji mounting portions, for example, an upper rail 31 and a lower rail, on the outer side and the indoor side. 41, the shoji 3b is mounted along the upper rail 31 and the lower rail 41 so as to be movable in the in-plane direction (left-right direction).

An aluminum lower frame attachment 8 is attached to the lower inner surface 1b of the opening 1 (the upper surface of the lower resin frame 5).
The lower frame attachment 8 is continuously attached between the left and right vertical inner surfaces 1c of the opening 1 (the inner surfaces of the left and right resin picture frames 5).
The window frame 3a has lower end portions of the window frame 3a, for example, the lower frame 40 and the lower end surfaces of the left and right vertical frames 50 in contact with the lower frame attachment 8, and the upper end portion of the window frame 3a, for example, the upper frame 30 and the left and right sides. The upper end surface of the vertical frame 50 is in contact with the upper inner surface 1a of the opening 1 (the inner surface of the upper resin frame 5), and the left and right vertical portions of the window frame 3a, for example, the left and right vertical frames 50 are the left and right vertical portions of the opening 1. It is attached in contact with the inner surface 1c (the inner surfaces of the left and right resin frame 5).

As such, the weight of the shoji loaded on the shoji mounting portion (lower rail 41) of the lower frame 40 of the window frame 3a of the inner window 3 is the entire surface of the lower frame attachment 8 where the lower end of the window frame 3a is in contact. The stress does not concentrate on a portion of the lower frame 40 of the lower frame attachment 8 that faces the shoji mounting portion (lower rail 41), and a portion of the lower inner surface 1b of the opening 1 to which the lower frame attachment 8 is attached. Since stress is not concentrated, the lower inner surface 1b is not deformed.
In particular, when the lower inner surface 1b is the resin frame 5 as described above, the resin frame 5 is not greatly deformed.

As shown in FIG. 3, the lower frame attachment 8 includes a window frame mounting portion 8a on the indoor side and a mounting portion 8b on the outdoor side, and a mounting piece for the lower frame 21 of the outer window 2 at the outdoor end of the mounting portion 8b. 23, the fixing tool 9 is inserted from the mounting portion 8b through the mounting piece 23 and the resin frame 5, and is fixed to a building frame, for example, a window base, and the lower frame attachment 8 is mounted.
Since it is like this, since the outer window 2 and the inner window 3 can be separated in the out-of-plane direction and a space can be formed between them, the heat insulation performance and the sound insulation performance are more excellent.

  Moreover, the window frame attaching portion 8a of the lower frame attachment 8 has no fixing tool, and the lower end portion of the window frame 3a of the inner window 3 is attached to the window frame attaching portion 8a so that the inner window 3 is attached. In the attached state, there is no flow of condensed water from the window frame attaching portion 8a to the lower inner surface 1b of the opening 1, or hot water in the shower when using a double window for bathroom, Even after the inner window 3 is attached, the water resistance of the lower inner surface 1b of the opening 1 is not impaired.

  Furthermore, since a part of the load of the inner window 3 loaded on the lower frame attachment 8 is supported by the mounting piece 23 of the lower frame 21 of the outer window 2, the weight of the inner window 3 can be dispersed and supported. .

There is an upward ridge 8c at the indoor side end of the window frame attachment portion 8a of the lower frame attachment 8, and the lower indoor side surface of the window frame 3a is in contact with the upward ridge 8c, so that the lower part of the window frame 3a is a chamber. It can be prevented from slipping inward, and the window frame 3a can be positioned.
In addition, the window frame mounting portion 8a of the lower frame attachment 8 has a rising surface 8d at the outdoor end thereof, and the rising surface 8d is in contact with the outdoor surface of the lower portion of the window frame 3a so that the lower portion of the window frame 3a is the outdoor side. Can be prevented.
In short, the window frame mounting portion 8a of the lower frame attachment 8 has an upwardly recessed shape in which the lower part of the window frame 3a fits, and the lower part of the window frame 3 can be positioned and held so as not to move in the indoor exterior direction. There is a measure against the puddle at the rising surface 8d.

A preferred specific shape of the lower frame attachment 8 will be described with reference to FIGS.
The lower frame attachment 8 includes an indoor side horizontal plate 80, an upward piece 81 provided at the indoor side end of the indoor side horizontal plate 80, a rising piece 82 provided at the outdoor side end of the indoor side horizontal plate 80, This is an elongated aluminum extruded shape member comprising an outdoor lateral plate 83 that is continuous with the upper end of the rising piece 82 and faces the outdoor side, and a downward piece 84 provided on the lower surface of the outdoor lateral plate 83.
Then, the indoor side horizontal plate 80, the upward piece 81, and the rising piece 82 form a window frame attachment portion 8a, the outdoor side horizontal plate 82 forms the attachment portion 8b, and the upward piece 81 is an upward protrusion 8c. The piece 82 is the rising surface 8d.

A procedure for attaching the lower frame attachment 8 will be described.
Before the inner window 3 is attached, the lower frame attachment 8 is temporarily placed in contact with the lower inner surface 1b of the opening 1 and between the longitudinal end surface of the lower frame attachment 8 and the left and right vertical inner surfaces 1c of the opening 1. The length is determined so that a predetermined gap (dust) is generated. At this time, as shown in FIG. 2, when there is the condensation receiver 24, the left and right corners near the outdoor side of the lower frame attachment 8 are notched so as not to interfere with the condensation receiver 24.

The lower frame attachment 8 is positioned and mounted in accordance with the mounting holes of the mounting portion 8b of the lower frame attachment 8 using the direction of the fixing tool 6 fixing the mounting piece 23 of the lower frame 21 of the outer window 2 as a guide. Mark the position of the pilot hole in the piece 23.
Thereafter, the lower frame attachment 8 is removed and a lower hole is made in the lower resin frame 5 together with the mounting piece 23.
The release paper 85 a of the double-sided tape 85 attached to the lower surface of the lower frame attachment 8 is peeled off, and the lower frame attachment 8 is temporarily placed again and adhered and fixed with the double-sided tape 85. Then, a sealing material is injected from the above-described mounting hole, and then the fixing tool 9 is fixed to the building frame and the lower frame attachment 8 is attached.
When the above-described fixing tool 9 cannot be fixed, the plug 86 shown in FIG. 5 is driven and the fixing tool 9 is fixed to the plug 86.

  As shown in FIGS. 4 and 6, the upper frame 30 of the inner window 3 includes a plate-shaped main body 32 that faces in an out-of-plane direction, a downward piece 33 provided at the indoor side end of the main body 32, and the main body 32. The above-described upper rail 31 is provided, and an indoor-side seal piece 34 and an outdoor-side seal piece 35 integrally provided upward at both ends in the out-of-plane direction of the main body 32, An adhesive such as a double-sided tape 36 is adhered to the upper surface.

  As shown in FIGS. 3 and 4, the lower frame 40 of the inner window 3 includes a plate-like main body 42 facing in an out-of-plane direction, the lower rail 41 provided on the main body 42, and the surface of the main body 42. An indoor-side sealing material 43 and an outdoor-side sealing piece 44 provided integrally downward at both ends in the outward direction are provided, and an adhesive, for example, a double-sided tape 45 is adhered to the lower surface of the intermediate portion in the out-of-plane direction of the main body 42. .

As shown in FIGS. 4 and 7, the left and right vertical frames 50 of the inner window 3 are plate-like main bodies 51 facing in the out-of-plane direction, and indoor inwardly provided integrally at both end portions in the out-of-plane direction of the main body 41. Piece 52, outdoor-outward piece 53, intermediate inward piece 54 provided at the intermediate portion in the out-of-plane direction of the main body 41, seal piece 55 provided integrally at the tip of the intermediate inward piece 54, and out-of-plane of the main body 51 The indoor side sealing piece 56 and the outdoor side sealing piece 57 integrally provided outward at both ends in the direction are provided, and the dimension in the out-of-plane direction between the outer side surfaces of the indoor side inward piece 52 and the outdoor side inward piece 53 is the lower side. The dimension in the out-of-plane direction between the upward projection 8c and the rising surface 8d of the frame attachment 8 is the same, and the dimension in the out-of-plane direction between the inner side faces is the same as the dimension in the out-of-plane direction of the upper frame 30 and the lower frame 40. is there. Note that “same” includes not only the same case but also a slightly different case.
The left vertical frame 50 has its seal piece 55 facing the outdoor side and in contact with the outdoor shoji 3b, and the right vertical frame 50 has its seal piece 55 facing the indoor side and in contact with the indoor side shoji 3b. It is like that.
Adhesives, for example, double-sided tapes 58 are bonded to both sides of the main body 51 in the out-of-plane direction.

Next, a procedure for attaching the window frame 3a of the inner window 3 will be described.
The lower end portions of the left and right vertical frames 50 are fitted into the window frame attaching portion 8a of the lower frame attachment 8, positioned in the out-of-plane direction, the vertical frame 50 is in contact with the vertical inner surface 1c of the opening 1, and the vertical frame 50 The upper end of the frame is positioned in the out-of-plane direction, and a line is drawn along the vertical frame 50 to the vertical inner surface 1c to make a marking line indicating the position of the vertical frame 50.
Thereafter, the vertical frame 50 is removed, the release paper 58a of the double-sided tape 58 is peeled off, the vertical frame 50 is attached according to the above-mentioned marking line, and is attached by bonding with the double-sided tape 58.
The indoor-side seal piece 56 and the outdoor-side seal piece 57 are in contact with the left and right vertical inner surfaces 1c of the opening 1, and seal between the vertical frame 50 and the vertical inner surface 1c.

The upper frame 30 is temporarily attached by fitting both ends in the longitudinal direction to the upper part between the indoor inward pieces 52 and the outdoor inward pieces 53 of the left and right vertical frames 50.
At this time, the upper portion of the intermediate inward piece 54 of the left and right vertical frames 50 interferes with the upper frame 30, so the upper portion of the intermediate inward piece 54 is excised, and both longitudinal end surfaces of the upper frame 30 are left and right The vertical frame 50 is in contact with the inner surface of the main body 51.
Specifically, since the upper frame 30 is made of resin and is easily elastically deformed, the upper frame 30 is elastically deformed in a downward arc shape (bow shape) so that the middle portion in the longitudinal direction is located below both ends, and left and right. In this state, the upper frame 30 is elastically deformed and restored straight, and both end faces in the longitudinal direction are strongly pressed against the inner surfaces of the main bodies 51 of the left and right vertical frames 50 to temporarily attach them.

In the above-described state, both ends in the longitudinal direction of the upper frame 30 are positioned in the indoor and outdoor direction by the indoor inward pieces 52 and the outdoor inward pieces 53 of the left and right vertical frames 50. Position in the indoor / outdoor direction.
In the above-described state, the position of the pilot hole is marked on the upper inner surface 1a (the upper resin frame 5) of the opening 1 according to the mounting hole of the upper frame 30.
Thereafter, the upper frame 30 is removed, a pilot hole is made in the upper inner surface 1a of the opening 1, and the two plugs 37 are press-fitted into the pilot hole as shown in FIG. Seal.

The release paper 36a of the double-sided tape 36 of the upper frame 30 is peeled off, the upper frame 30 is attached between the left and right vertical frames 50 as described above, and the double-sided tape 36 is attached to the upper inner surface 1a of the opening 1 by attachment. Then, a sealing material is injected into the above-described mounting hole, and the fixing member 38 is fixed to the plug 37 to attach the upper frame 30.
The indoor side sealing piece 34 and the outdoor side sealing piece 35 are pressed against the upper inner surface 1a of the opening 1 to seal between the upper frame 30 and the upper inner surface 1a.

Next, the lower frame 40 is attached between the indoor inward pieces 52 and the outdoor inward pieces 53 of the left and right vertical frames 50 in the same manner as the upper frame 30 described above.
That is, the lower end portion of the intermediate inward piece 54 of the vertical frame 50 is cut away so as not to interfere with the lower frame 40.
The indoor-side seal piece 43 and the outdoor-side seal piece 44 are pressed against the window frame attaching portion 8a of the lower frame attachment 8 to seal between the lower frame 40 and the window frame attaching portion 8a of the lower frame attachment 8.

As described above, when the lower frame 40 is attached, the upper surface of the main body 42, that is, the upper surface of the lower frame 40 is continuous with the upper surface of the attachment portion 8b of the lower frame attachment 8, as shown in FIG. As shown in FIG. 2, one end in the longitudinal direction of the lower rail 41 on the outdoor side of the lower frame 40 is notched, so that condensed water on the lower frame 40 is passed through the lower frame attachment 8 through the notched portion 41 a. It can drain to the outer window 2 side. The upper surface of the lower frame 40 may be slightly higher than the upper surface of the attachment portion 8b.
In addition, the other end in the longitudinal direction of the lower rail 41 on the indoor side of the lower frame 40 is cut out, and the condensed water on the lower frame 40 is passed through the cut-out portion 41b. It is possible to drain hot water and the like when using the bathroom into the room.

  As described above, by attaching the lower parts of the left and right vertical frames 50 so as to fit into the window frame attaching portion 8a of the lower frame attachment 8, the lower parts of the left and right vertical frames 50 can be positioned indoors and outdoors. Since the upper frame 30 and the lower frame 40 are attached so as to fit between the indoor inward piece 52 and the outdoor inward piece 53 of the vertical frame 50, the window frame 3a can be easily attached. .

  Moreover, since the vertical frame 50, the upper frame 30, and the lower frame 40 are attached by bonding, the window frame 3a can be attached more easily.

Furthermore, since the upper frame 30 is fixed and attached by the fixing tool 38, the upper frame 30 will not fall off even if the adhesion is removed.
Since the longitudinal direction both end surfaces of the upper frame 30 and the lower frame 40 are in contact with the inner surfaces of the left and right vertical frames 50, the vertical frame 50 does not fall down and the window frame 3a is firmly attached even if the vertical frame 50 is peeled off. Can be attached.
Since the lower frame 40 and the vertical frame 50 are not fixed by the fixing tool, condensed water or the like does not enter the building frame from the fixed portion.

  Between the outdoor end of the lower frame attachment 8 and the mounting piece 23 of the lower frame 21 of the outer window 2, between the left and right ends of the lower frame attachment 8, and the left and right vertical inner surfaces 1 c of the opening 1, the lower frame attachment 8 Between the indoor side end and the lower inner surface 1b of the opening 1, between the upward projection 8c of the lower frame attachment 8 and the indoor side end surface of the lower frame 40, between the rising surface 8d and the outdoor end surface of the lower frame 40, a vertical frame 50 and the upper inner surface 1a and the lower inner surface 1b of the opening 1 are respectively sealed by a sealing material 10 (see the hatched portions in FIGS. 1 and 2). In addition, illustration of the sealing material 10 is abbreviate | omitted in FIG.3, FIG.6, FIG.7.

In FIG. 3, a reinforcing material 60 is attached to the interior material 4 below the opening 1.
As described above, the reinforcing member 60 is attached to the plug 61 by screwing the screw 62 to reinforce the lower portion of the frame.
The reinforcing member 60 is hidden by the cover 63.

In the above-described embodiment, the case where the inner surface of the opening 1 is the resin frame 5 is shown, but the inner surface is not limited to the resin frame 5.
For example, as shown in FIGS. 8 and 9, a tile 70 may be used as an upper inner surface 1a, a lower inner surface 1b, and a vertical inner surface 1c.
In this case, the outdoor side end of the attachment portion 8 b of the lower frame attachment 8 is in contact with the indoor side surface 21 a of the lower frame 21 of the outer window 2.
In the same manner as described above, a pilot hole 71 is made in the tile 70 in accordance with the mounting hole of the lower frame attachment 8.
The cylindrical plug 72 shown in FIG. 10 is press-fitted and attached to the prepared hole 71, and the fixing tool 9 is fixed in the plug 72 from the prepared attachment hole of the lower frame attachment 8, and the lower frame attachment 8 is attached.

  Similarly to the above, the upper frame 30 is also attached by press-fitting a plug 74 into a prepared hole 73 formed in the tile 70, and the fixing member 38 is fixedly attached to the plug 74.

If the lower inner surface 1b of the opening 1 is horizontal, the lower frame attachment 8 is mounted horizontally, and the window frame mounting portion 8a of the lower frame attachment 8 is mounted in contact with the lower end portion of the window frame 3a. The frame 3a can be attached vertically.
However, when the lower inner surface 1b of the opening 1 is not horizontal and is inclined so that the indoor side portion is lower than the outdoor side portion, for example, a bathroom window, the lower inner surface 1b has a water gradient. In some cases, the lower frame attachment 8 cannot be mounted horizontally.
Therefore, for example, as shown in FIG. 11, an adjustment material 90 (thin plate material) is interposed between the interior side of the lower inner surface 1 b of the opening 1 and the lower surface of the lower frame attachment 8, thereby making the lower frame attachment 8 horizontal. It can be attached to.

  The above-described embodiment is a double-layered window, and an existing window having only the outer window 2 can be easily renovated to a double window having excellent heat insulating performance and sound insulation performance. It is good also as a double window which attached the inner window 3 at the same time.

  DESCRIPTION OF SYMBOLS 1 ... Opening part for window attachment, 1a ... Upper inner surface, 1b ... Lower inner surface, 1c ... Vertical inner surface, 2 ... Outer window, 3 ... Inner window, 3a ... Window frame, 3b ... Shoji, 8 ... Lower frame attachment, 8a ... Window frame attaching part, 8b ... Mounting part, 8c ... Upward protrusion, 9 ... Fastener, 30 ... Upper frame, 36 ... Double-stick tape (adhesive), 38 ... Fastener, 40 ... Lower frame, 50 ... Vertical frame , 51 ... main body, 52 ... indoor inwardly facing piece, 53 ... outdoor inwardly facing piece.

Claims (7)

A double window with an outer window attached to the outside of the opening for installing the building window and an inner window attached to the indoor side of the opening,
Window frame of said window comprises a lower frame made of resin having a shoji mounting portion, and a resin of the upper frame, the vertical frame of the left and right resin,
Attached to the lower inner surface of the opening is an aluminum lower frame attachment having a window frame mounting portion that contacts the entire length of the resin lower frame in the out-of-plane direction. The window frame of the inner window is out of the plane of the lower frame. A double window having a total length in contact with a window frame attachment portion of a lower frame attachment, an upper frame attached to an upper inner surface of the opening, and left and right vertical frames attached to the left and right vertical inner surfaces of the opening.
The lower frame attachment includes a window frame mounting portion on the indoor side and a mounting portion on the outdoor side, and the mounting portion is fixed to the lower inner surface of the opening with a fixing tool, and is attached to the window frame mounting portion under the window frame. The double window according to claim 1, which is in contact with a frame . It has an upward ridge on the indoor side of the window frame attachment part of the lower frame attachment,
The double window according to claim 2, wherein an outdoor side end of the attachment portion of the lower frame attachment is in contact with an attachment piece provided on an indoor side surface of the lower frame of the outer window. The window frame attachment part of the lower frame attachment is an upward concave shape continuous in the left-right direction,
The left and right vertical frames constituting the window frame of the inner window have an indoor inward piece and an outdoor inward piece, and the lower end portion thereof fits into the window frame attachment portion of the lower frame attachment,
4. The double window according to claim 2, wherein the upper frame and the lower frame have both longitudinal end portions fitted between the indoor inward pieces and the outdoor inward pieces of the left and right vertical frames. Adhering the left and right vertical frames to the left and right vertical inner surfaces of the opening with an adhesive,
Adhering the upper frame to the upper inner surface of the opening with an adhesive, and fixing it with a fixing tool,
The double window according to claim 4, wherein both longitudinal ends of the upper frame and the lower frame are in contact with inner surfaces of the left and right vertical frames.   The upper surface of the lower frame attached to the window frame attachment portion on the indoor side of the lower frame attachment is the same as or slightly higher than the upper surface of the attachment portion on the outdoor side of the lower frame attachment. A double window according to claim 1.   The double window according to any one of claims 1 to 6, wherein the outer window is an existing window, the lower frame attachment and the inner window are newly installed, and are a double window for refurbishment.

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