JPH09184364A - Heat insulating sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the execution property of mounting and the reliability of waterproofing of sash corners. SOLUTION: An interlayer body 29 made of a heat insulating material which connects an interior frame 21 and an exterior frame 22 is fitted to a connecting groove provided in opposition to upper and lower transverse frame materials and right and left vertical frame materials of the interior frame 21 and the exterior frame 22, and an exterior side edge 57 and an interior side edge 62 which are opposed to the upper and lower transverse frame materials and the right and left vertical frame materials of the interior frame 21 and the exterior frame 22, cover both side edges running along the longitudinal direction of the interlayer bodies by caulking and fix the interlayer bodies, are provided. And then, concerning at least right and left interlayer bodies of the upper and lower, and right and left interlayer bodies, a padded part 68 which is provided integrally in the lower ends before framing, fills a groove between the exterior edge 57 of the interior frame 21 and the interior side edge 62 of the exterior frame 22, and is linked flush with the inner surfaces of the exterior side edge and the interior side edge, is provided, and a soft synthetic resin layer 68a which is formed integrally with the padded part 68 and is made to contact by pressure the exterior side edge and the interior side edge deformed at the time of caulking, is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating sash in which a metal indoor frame and an outdoor frame are connected to each other through an insulating material interposing body, and the interposing body prevents heat conduction between the two frames. Regarding

[0002]

2. Description of the Related Art A metal sash is formed by framing upper and lower horizontal frame members and left and right vertical frame members made of metal into a rectangular frame. 45 parts each
There are abutting type that has end faces inclined at ゜ and abuts these end faces and connects them with screws, and a pinch type that connects the upper and lower horizontal frame members with the ends of the left and right vertical frame members and connects them with screws. And those formed by the latter type of framework are easy to assemble and width fit.

Further, the heat insulating sash has a structure in which the end portion of the interposer is fitted into the connection groove of each frame member inside and outside the room, as shown in JP-A-57-100280, depending on how the interposer is attached. Then, the so-called caulking method is adopted, in which the groove edge of the connecting groove is caulked so as to bite into the edge portion of the interposer, and a hollow member is used as shown in Japanese Utility Model Publication No. 60-40780. Alternatively, after providing a dovetail-shaped connecting portion and filling and solidifying the interposing material in this portion, a part of the wall forming the connecting portion is removed by cutting over the entire length in the longitudinal direction of the mold material to expose the interposing body. At the same time, there is one that employs a so-called filling method in which the mold material is separated into indoor and outdoor. In any of these methods, a groove extending over the entire length in the longitudinal direction of the frame member is formed between the frame member on the indoor side and the frame member on the outdoor side and the interposer connecting them.

11 and 12 show the structure of the corner portion of the conventional heat insulating sash which is framed by the sandwich type and adopts a caulking method. In these drawings, 1 is a vertical frame member of the indoor frame 2, 3 is a lower horizontal frame member of the indoor frame 2, 4 is a vertical frame member of the outdoor frame 5, 6 is a lower horizontal frame member of the outdoor frame 5, 7a and 7b are interposers connecting the vertical frame members 1 and 4, 8a and 8b are interposers connecting the horizontal frame members 3 and 6,
9 is a caulking sealer. Caulking sealer 9
Is adhered to the lower end surface of the vertical frame composed of the interposers 7a and 7b and the vertical frame members 1 and 4, so that the lower horizontal frame composed of the interposers 8a and 8b and the horizontal frame members 3 and 6 is formed. It is sandwiched between the end surface and the lower end surface of the vertical frame.

Reference numeral 10 denotes a recess formed on the end face of the lower frame, and the inside outer edge 1a of the vertical frame member 1 and the indoor side edge of the vertical frame member 4 which cover the edge of the interposer 7a therein. The part 4a is stored. In addition, 3a is an outdoor side edge of the lower horizontal frame member 3 that covers the edge of the interposer 8a, and 6a is an indoor side edge of the lower horizontal frame member 6 that also covers the edge of the interposer 8a. .

The interposer 7a and the indoor and outdoor edges 1a,
4a, the groove 11 having the interposer 7a as a bottom wall is formed over the entire length of the vertical frame, and the interposer 8a and the edges 3a and 6a inside and outside the room form the bottom of the interposer 8a. Groove 12 for wall
Are formed over the entire length of the lower horizontal frame. Both of these grooves 11 and 12 are exposed outdoors.

In such a structure, the end face opening of the groove 12 is temporarily closed by the caulking sealer 9, but the groove 11 extending in the longitudinal direction is parallel to the caulking sealer 9 and therefore is not closed. Therefore, the groove 11 serves as a water passage, through which rainwater passes through to the rear surface side of the lower horizontal frame member and wets the window sill of the body supporting the heat insulating sash from the rear surface. Incidentally, such a situation also applies to the sash corner portion formed by the vertical frame member and the upper horizontal frame member.

Therefore, in the past, at a construction site where a heat insulating sash is attached to a frame, the contractor manually puts a filler such as butyl rubber or silicone rubber in a portion located at a sash corner portion such as the groove 11. A filling operation is performed to ensure waterproofness at the sash corner portion.

[0009]

As described above, according to the conventional heat insulating sash in which the sash corner is waterproofed by the builder at the construction site, there is a possibility that the waterproofing may be forgotten. At the same time, even if the waterproof treatment is performed, it is inevitable that the waterproof performance varies depending on the skill level of the operator. Therefore, the conventional heat insulating sash framed by the sandwich type has a problem in that the workability of mounting and mounting is poor and the reliability of waterproofing at the sash corners cannot be assuredly guaranteed. An object of the present invention is to obtain a heat insulating sash that can improve the workability of installation work and can improve the reliability of waterproofing of the sash corner portion.

[0010]

In order to achieve the above-mentioned object, the present invention comprises, in claim 1, upper and lower horizontal frame members made of metal and left and right vertical frame members made of metal. A frame-formed room in which the frame member is sandwiched by both ends of the left and right vertical frame members, and screws passing through the ends of the left and right vertical frame members are screwed into screw receiving portions provided in the upper and lower horizontal frame members. A frame and an outdoor frame, and a heat insulating material which is fitted into a connecting groove provided in the upper and lower horizontal frame members and left and right vertical frame members of the indoor frame and the outdoor frame so as to face each other, and is made of a heat insulating material. The interposer and the upper and lower horizontal frame members and the left and right vertical frame members of the indoor frame and the outdoor frame are provided so as to face each other, and both side edges along the longitudinal direction of the interposer are covered by caulking. Of the outdoor side edge portion and the indoor side edge portion that fix the
For at least the left and right interposers, at least the lower ends of the left and right interposers are integrally provided in advance in front of the frame, and the outdoor side edge of the indoor frame and the indoor side edge of the outdoor frame. A padding portion that fills a groove between the padding portion and is flush with the inner surfaces of the outdoor side edge portion and the indoor side edge portion, and the chamber formed integrally with the padding portion and deformed during caulking The heat insulating sash is provided with a soft synthetic resin layer which is brought into pressure contact with the outer edge portion and the indoor side edge portion.

According to a second aspect of the present invention, in the heat insulating sash according to the first aspect, the soft synthetic resin layer is integrally formed with a padding portion of the interposer by a two-color molding method. To do.

In the structure of the heat insulating sash, the padding portion of the interposer is previously provided by the time of factory shipment before the frame of the sash, and the outdoor side edge and the outdoor side frame of the indoor side frame member are provided. A groove formed between the material and the inner side edge portion of the material is filled, and at least the lower end portion of the groove is closed in the vertical frame.

Therefore, due to the framework of the installation site of this heat insulating sash, the water passage leading to the back side (frame side) of the sash corner is not formed, and this heat insulating sash is installed. After that, the padding portion of the interposer prevents rainwater and the like from passing through the sash corner portion toward the body. Therefore, the waterproof treatment for the sash corner portion at the installation construction site on the body can be omitted or simplified even if it cannot be omitted.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 2 and 3 showing the overall configuration of the heat insulating sash of the present embodiment, this sash has a metal interior frame 21 facing the room, a metal exterior frame 22 facing the outdoors, and both frames 21. , 22 and upper and lower left and right interposers 23 to 30 are connected.

The inner frame 21 includes upper and lower horizontal frame members 31 and 32 and left and right vertical frame members 3 made of an extruded aluminum alloy material.
3 and 34 are framed by a so-called sandwiching method as described later.

As shown in FIG. 2, the upper lateral frame member 31 is
It has a tapping hole 35 as a screw receiving portion and a sealing material mounting portion 36, and these are integrally formed so as to extend over the entire length of the upper lateral frame member 31 in the longitudinal direction. Similarly, the lower horizontal frame member 32 also has a tapping hole 37 as a screw receiving portion and a seal member mounting portion 38, which also extend over the entire length of the lower horizontal frame member 32 in the longitudinal direction and are integrally formed. Has been formed.

As shown in FIG. 3, the left vertical frame member 33 is integrally formed with a seal member mounting portion 39 extending in the longitudinal direction thereof, and the right vertical frame member 34 is also provided with a seal extending in the longitudinal direction thereof. The material mounting portion 40 is integrally formed. As representatively shown in FIG. 1, the seal member attaching portions 39 and 40 are formed to have shorter upper and lower ends and shorter than the entire lengths of the left and right vertical frames 33 and 34.
The upper and lower end surfaces of the sealing material mounting portions 39 and 40 are respectively brought into contact with the longitudinal end portions of the sealing material mounting portions 36 and 38, respectively.

The outdoor frame 22 is also composed of upper and lower horizontal frame members 41 and 42 and left and right vertical frame members 4 which are extruded aluminum alloy members.
3, 44 and 3 and 4 are formed by a so-called sandwiching method, as will be described later.

As shown in FIG. 2, the upper lateral frame member 41 is
It has a tapping hole 45 as a screw receiving portion and a sealing material mounting portion 46, and these are integrally formed so as to extend over the entire length of the upper lateral frame member 41 in the longitudinal direction. Similarly, the lower horizontal frame member 42 also has a tapping hole 47 as a screw receiving portion and a seal material mounting portion 48, which also extend over the entire length of the lower horizontal frame member 42 in the longitudinal direction and are integrally formed. Has been formed.

As shown in FIG. 3, the left vertical frame member 43 is integrally formed with a seal member attachment portion 49 extending in the longitudinal direction, and the right vertical frame member 44 also has a seal extending in the longitudinal direction. The material mounting portion 50 is integrally formed. As shown representatively in FIG. 1, the sealing material mounting portions 49, 50 have both upper and lower ends removed, are shorter than the entire length of the left and right vertical frames 43, 44, and have sealing material mounting portions 49, 50. Both the upper and lower end surfaces of the
The both ends of 6, 48 are abutted separately.

The interposers 23 to 30 are each formed of a hard or semi-rigid heat insulating material such as a synthetic resin such as nylon, polyethylene or vinyl chloride. Upper and lower interposers 23-
26 is a strip plate having the same length as the entire length of the upper and lower horizontal frame members 31, 32, 41, 42, and the right and left interposers 27.
Numerals to 30 are strip plates having the same length as the entire length of the left and right vertical frame members 33, 34, 43 and 44. Both edge portions f1 and f2 (see FIGS. 1 and 4) along the length direction of the interposers 23 to 30 are
It is gradually widened so that the thickness is larger than the intermediate portion between these.

The upper interposers 23 and 24 are arranged in parallel with each other and are interposed between the upper lateral frame members 31 and 41 to connect the both frame members 31 and 41 in a bridge shape. The lower interposers 25 and 26 are also provided in a bridge shape so as to be parallel to each other and interposed between the lower lateral frame members 32 and 42 to connect the both frame members 32 and 42. Similarly, the interposers 27 and 28 on the left side are made parallel to each other and are interposed between the left side vertical frame members 33 and 43, and both the frame members 3 and
3 and 43 are connected to each other and are provided in a bridge shape, and the right-side interposers 29 and 30 are also parallel to each other and interposed between the right-side vertical frame members 34 and 44.
It is provided in a bridge shape by connecting 4, 44.

Each of the interposers 23 to 30 has a corresponding frame member 31.
To 34, 41 to 44 are connected by a caulking method. This connection is performed by connecting the left vertical frame member 3 on the indoor side shown in FIG.
The connection of the interposers 27 and 28 with respect to No. 3 will be described as a representative.

That is, reference numerals 55 and 56 in FIG. 6 denote connecting grooves formed integrally with the left vertical frame member 33 so as to extend the entire length in the longitudinal direction thereof. In the state after extrusion molding, the connection groove 55 is formed between the outdoor side edge portion 57 of the indoor frame 21 as the crimping edge portion and the wall portion 58 facing the outdoor side edge portion 57, and has a dovetail-shaped cross section, and the inside of the sash The outdoor side edge 57 located on the front surface side
Is inclined with respect to the flat wall portion 59 forming the sash inner surface of the vertical frame member 33 so as to be gradually separated from the wall portion 58. The connecting groove 56 is formed between the caulking edge portion 60 and the wall portion 61 facing the caulking edge portion 60 and has a dovetail-shaped cross section, and the caulking edge portion 60 located on the back surface side of the sash gradually separates from the wall portion 61. Is so inclined.

The edge portion f1 of the interposers 27 and 28 is shown in FIG.
As shown by the chain double-dashed line, the connection grooves 55 and 56 are separately fitted. This fitting is performed by inserting one end in the longitudinal direction of the interposer 27, 28 from one end in the longitudinal direction of the connecting grooves 55, 56 at the leading end. Thereafter, the force shown by the arrow in FIG. 6 is applied by the pressure roller to the diagonal edge 57,
In addition to 60, the edge portions f1 of the interposer 27 are sandwiched between the outdoor side edge portion 57 and the wall portion 58 by performing the caulking process in which they are brought close to the wall portions 58 and 61 separately. The edge portion f1 of the interposer 28 is sandwiched between the wall portion 61 and the caulking edge portion 60.

The connection between the other edge portion f2 of the interposer 27, 28 and the left vertical frame member 43 on the outdoor side is also the same, and the processing is of course performed simultaneously with the caulking. Is. Further, since the connection between other frame members is also the same, the same reference numerals are given to the same configurations in FIGS. 1 and 4 and 5, and the description thereof will be omitted. The indoor side edge of each of the frame members 41 to 44 on the outdoor side is shown, and the edge f2 of the interposer 27 is sandwiched between this and the wall 58.

The interposer 2 is subjected to the caulking process as described above.
The left vertical frame members 33 and 43 are connected via 7 and 28 to form a left vertical frame. Similarly,
The right vertical frame members 34, 44 are connected via the interposers 29, 30 to form a left vertical frame, and the upper horizontal frame members 31, 41 are intervened by the interposers 23, 24. Are connected to each other to form an upper horizontal frame, and the lower horizontal frame members 32 and 42 are connected to each other via the interposers 25 and 26 to form a lower frame member. .

Then, each of the outdoor side edge portions 57, which are pressed and deformed by the caulking process, has the interior frame 2 continuous with them.
Is provided so as to be flush with the flat wall portion 59, and the outdoor side edge portion 57 of the indoor frame 21 and the wall portion 59 are flush with each other and face the inside of the sash. Similarly, each indoor side edge portion 62 is also provided flush with the flat wall portion 63 of the outdoor frame 22 that is continuous with it.
The indoor side edge portion 63 of the outdoor frame 22 and the wall portion form the same plane facing the inside of the sash.

Moreover, by the caulking process, the outer edge portions 57 of the respective chambers are the edge portions of the interposers 23, 25, 27, 29.
While covering f1, each indoor side edge portion 61 has the interposing material 23, 2
The edges f2 of 5, 27 and 29 are covered. Thereby, between the outdoor side edge portions 57 and the indoor side edge portions 61 facing each other,
Interposers 23, 25, 27, 29 located between them
The bottom, left, right, top and bottom grooves 64 to 67 (see FIGS. 1 to 1).
(See FIG. 5). These grooves 64-6
All 7 are provided over the entire length in the longitudinal direction of the vertical frame or the horizontal frame and face the inside of the sash.

As shown in FIG. 7, a built-up portion 68 is provided integrally with both ends of the grooves 64 to 67 in the lengthwise direction, in other words, at both ends of the upper, lower, left and right interposers 29, as shown in FIG. Has been. The surface of the padding portion 68 is flush with the inner surface (the surface facing the inner side of the sash) of the outdoor edge 57 of the indoor frame 21 and the indoor edge 62 of the outdoor frame 22. Therefore, the padding portion 6 is provided through the edges 57 and 62.
The surface of 8 and the inner surfaces of the walls 59 and 63 are flush with each other.

Here, "flush" means an error range within which the intended function due to the provision of the padding portion 68 can be exerted.
It goes without saying that the surface of the built-up portion 68 may be slightly protruded inward of the sash with respect to the inner surfaces of the both edge portions 57 and 62, or may be slightly recessed toward the back side of the sash.

The padding portion 68 has a trapezoidal cross section, and soft synthetic resin layers 68a are integrally formed on both inclined side surfaces thereof. That is, the soft synthetic resin 68a is molded with the interposer 29 by the two-color molding method.

By using the interposer 29 in which the soft synthetic resin layer 68a is formed on the built-up portion 68 as described above, the outdoor side edge portion 57 of the indoor frame 21 and the indoor side edge portion 62 of the outdoor frame 22 are used.
As the inner and outer frames 21 and 22 are connected by caulking, the both edges 57 and 62 are pressed against the soft synthetic resin layer 68a. Therefore, the adhesiveness is extremely good, and a slight water passage is not formed, which is extremely effective for achieving the intended purpose of the present invention.

A flexible caulking sealer 69 (in which a synthetic rubber or the like is formed into a sheet shape by covering the surfaces of the inner surfaces of the sashes formed on the same plane at the upper and lower ends of the left and right vertical frames having the above-mentioned structure so as to cover the surfaces, respectively. Only those provided on the lower end of the left vertical frame are shown in FIGS. 1, 4 and 5 as a representative.)
Is installed. The caulking sealer 69 has a shape slightly larger than the size of the end faces of the upper and lower horizontal frames. These caulking sealer 69 and padding portion 68
Is provided in advance at the stage of factory production.

Then, the upper and lower horizontal frames and the left and right vertical frames form a sash by being framed by a sandwich type. Specifically, the left and right end surfaces of the upper and lower horizontal frames are brought into contact with the inner surfaces of the upper and lower end portions of the left and right vertical frames through caulking sealers 69,
The upper and lower horizontal frames are sandwiched between the upper and lower ends of the left and right vertical frames, respectively, and the screws 70 are individually screwed into the tapping holes 35 and 37 through the left and right vertical frames and the caulking sealer 69 (FIG. 5).
It is framed by tightening only one).

As shown in FIGS. 2 and 3, the heat insulating sash having the above-described structure has a single swing door 81 for opening and closing the inner opening thereof.
Are rotatably attached via upper and lower hinge devices 82 and 83, and the single swing door 81 and the heat insulating sash form a heat insulating window. The upper hinge device 82 is provided by connecting the upper frame of the single swing door 81 and the upper lateral frame member 41 on the outdoor side, and the lower hinge device 83 is provided on the lower frame of the single swing door 81 and the lower outdoor side. It is provided by being connected to the side horizontal frame member 42, and supports the single swing door 81 so that it can be opened and closed with the right vertical frame member 44 side as a pivot.

The upper, lower, left, and right frames of the single swing door 81 are heat-insulating frame frames having an indoor frame frame 85 and an outdoor frame frame 86 connected through an interposer 84. Since the interposer 84 and the connecting structure of the interposer 84 and the frame frames 85 and 86 are the same as those of the heat insulating sash (note that the caulking sealer is not used), the detailed description thereof will be omitted. Further, inside the insulating frame of the hinged door 81, a double glazing 87 which is insulated from each other is attached.

In FIGS. 2 and 3, 88 is a window sill, 89 is a lintel, 90 is a window post, 91 is a veneer, and 92 is a decorative plate, all of which are made of wood. Further, 93 is a sealing material attached to the indoor frame 2 in an annular shape, and 94 is a sealing material attached to the outdoor frame 5 in an annular shape to achieve air-tightness between the heat insulating sash and the hinged door 81. There is. 9
5 is a rubber packing, and 96 is a lock.

The heat insulating sash is assembled in a square frame by connecting the upper and lower horizontal frames and the left and right vertical frames with the screws 70, as described above, at the site of its installation work. By the way, at both ends of the interposers 23 to 30 of the upper, lower, left and right frames,
The padding portion 68 has already been provided at the stage of factory shipment, and the padding portion 68 is provided on the outdoor side edge portion 57 and the outdoor side frame material 41 of the indoor side frame members 31 to 34 of each of the upper, lower, left, and right frames.
Up to 44 inner side edge portions 62 and the interposers 23 to 30 connecting these frame members are filled with the ends of the grooves 64 to 67, respectively. That is, the grooves 66, 67 of the left and right vertical frames
Both ends of the groove are closed by the built-up portion 68, and both ends of the grooves 64, 65 of the upper and lower horizontal frames are closed by the built-up portion 68.

Therefore, with the framework of the upper, lower, left, and right frames at the construction site of this heat insulating sash installation, a water passage leading to the back side (frame side) of the sash corner portion is not formed. Moreover, as described above, since the padding portion 68 is already provided at the factory shipping stage, it is possible to prevent the user from forgetting to attach the waterproof portion as compared with the case where it is premised that the waterproof treatment is performed on site, and the waterproof treatment is performed. There is no variation. Moreover, since relatively deep scratches (recesses) over the entire length in the longitudinal direction of the frame members 31 to 34, 41 to 44 are not formed near the indoor side edge portion 62 and the outdoor side edge portion 57, the sash is not formed. At the corner, no water passage is formed behind it.

Therefore, after the installation of the heat insulating sash, it is possible to reliably prevent the rainwater and the like from passing through the sash corner toward the body, particularly the window sill 88, by the built-up portion 68, and accordingly, the window sill 88. It can prevent corrosion. Therefore, it is possible to omit the waterproof treatment for the sash corner portion at the installation construction site on the body. Alternatively, in order to make the sash corners more waterproof, if necessary, even if waterproofing is performed by applying a sealing material, the application amount can be reduced to simplify the work at the construction site. In this way, since the waterproofing measures at the construction site can be omitted or made slight, the work of attaching the heat insulating sash can be easily performed.

Since the padding portion 68 is made of a material having a low thermal conductivity, even if the indoor side edge portion 62 and the outdoor side edge portion 57 are connected to each other through the padding portion 68, the padding portion 68 and the interior frame 2 are connected to each other. It is possible to prevent heat from being conducted to the outdoor frame 5. Therefore, the desired heat insulating function as the heat insulating sash is not impaired, and it is effective in preventing condensation.

The second embodiment shown in FIGS. 8 and 9 has the same structure as the first embodiment except for the structure of the interposer 29, including the portion not shown. Therefore, the second embodiment has the same structure. The same reference numerals are given to the parts, and the description thereof will be omitted.

The interposer 29 of this embodiment has a padding portion 68.
The same construction as the interposer shown in FIG. 7 except that the soft synthetic resin layers 68a are provided on both inclined surfaces of the above and the recess 68b is provided on the back side of the buildup portion 68 to reduce the molding material. Is.

FIG. 10 shows a third embodiment. In the first and second embodiments, a padding portion 68 is provided integrally with both ends of the upper, lower, left and right interposers 29, and the meat is formed. The surface of the heap portion 68 is flush with the inner surface (the surface facing the inside of the sash) of the outdoor side edge portion 57 of the indoor frame 21 and the indoor side edge portion 62 of the outdoor frame 22, and these edge portions 57 and 62 are Although the surface of the built-up portion 68 and the inner surfaces of the wall portions 59 and 63 are flush with each other, in the present embodiment, the built-up portion is integrally formed over the entire length in the longitudinal direction of the interposed body 29 on the upper, lower, left and right sides. 68 is provided, and the surface of the built-up portion 68 is flush with the inner surface (the surface facing the inner side of the sash) of the outdoor edge 57 of the indoor frame 21 and the indoor edge 62 of the outdoor frame 22. It is in. Although not shown, soft synthetic resin layers 68a are provided on both side surfaces of the built-up portion 68 which are inclined.

Further, the present invention is applicable not only to the sliding window, the bay window, and other window device sashes, but also to the door device sashes, and also to the shoji of the window device and the frame of the door of the door device. it can.

[0047]

As described above in detail, in the heat insulating sash according to claim 1, the padding portion of the interposer for preventing rainwater and the like from passing from the sash corner portion toward the body is provided.
The sash corner part has a structure that was prepared in advance before the factory shipment before the sash framework so that the sash corner part will not be forgotten to be waterproofed at the installation site and the waterproof performance will not vary. The reliability of waterproofing can be improved, and the waterproofing process for the sash corners at the installation site of this heat-insulating sash can be simplified or simplified, if not omitted.
It is possible to improve the workability of attaching and installing the heat insulating sash to the body.

Further, by forming the soft synthetic resin layer on the built-up portion, it is pressed against the outdoor side edge and the indoor side edge that are deformed during the caulking process, and the adhesion is very good, and a slight water passage is formed. The sash corner portion has a structure in which there is no water passage that passes through the sash corner portion on the back side thereof, so that the reliability of waterproofing of the sash corner portion can be further improved. According to the second aspect, since the soft synthetic resin layer is integrally formed with the built-up portion of the interposer by the two-color molding method, it is easy to manufacture and can be provided at a low price.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a lower sash corner portion of a heat insulating sash according to a first embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing the overall configuration of the heat insulating sash according to the same embodiment.

FIG. 3 is a cross-sectional view showing the overall configuration of the heat insulating sash according to the same embodiment.

FIG. 4 shows the configuration of the heat insulating sash according to the embodiment in FIG.
-The cross-sectional view shown along the Z line.

5 is a cross-sectional view showing a configuration of a lower sash corner portion taken along line YY in FIG.

FIG. 6 is a view showing a method of attaching the interposer to the frame member according to the same embodiment.

FIG. 7 is a perspective view showing a configuration of a lower end portion of a vertical frame of the heat insulating sash according to the embodiment.

FIG. 8 is a sectional view showing an interposer according to a second embodiment of the present invention.

FIG. 9 is a cross-sectional view showing a configuration of a lower sash corner portion of the heat insulating sash according to the same embodiment.

FIG. 10 is a perspective view showing a configuration of a lower sash corner portion of the heat insulating sash according to the third embodiment of the present invention.

11 is a view showing the structure of a heat insulating sash according to the conventional example in FIG.
-The cross-sectional view shown along the W line.

FIG. 12 is a perspective view showing a configuration of a lower sash corner portion of the heat insulating sash according to the conventional example.

[Explanation of symbols]

 21 ... Indoor frame 22 ... Outdoor frame 23-30 ... Interposer 31 ... Upper horizontal frame member 32 ... Lower horizontal frame member 33 ... Right vertical frame member 34 ... Left vertical frame member 35 ... Tapping hole (screw receiving part) 41 ... upper side horizontal frame member 42 ... lower side horizontal frame member 43 ... right side vertical frame member 44 ... left side vertical frame member 57 ... outdoor side edge portion 62 ... indoor side edge portion 64 to 67 ... groove 68 ... padding portion 68a ... soft composite Resin layer

Claims (2)

[Claims] 1. An upper and lower horizontal frame member comprising upper and lower horizontal frame members made of metal and left and right vertical frame members made of metal, wherein the upper and lower horizontal frame members are sandwiched by both ends of the left and right vertical frame members. Indoor frame and outdoor frame formed by screwing the screws passing through the ends of the left and right vertical frame members to the screw receiving portion of the material, and the vertical and horizontal frame members of the indoor frame and outdoor frame and the left and right vertical frames. An interposing body made of a heat insulating material, which is fitted in a connecting groove provided to face the frame member to face each other and connects the indoor frame and the outdoor frame, and upper and lower horizontal frame members and left and right vertical frames of the indoor frame and the outdoor frame. Members facing each other and covering both side edges along the longitudinal direction of the interposer by caulking, and fixing the interposer to the outdoor side edge and the indoor side edge, and the upper, lower, left, and right interposers. At least the lower ends of the left and right sides of the body, at least on the left and right sides of the body. Is integrally provided in front of the frame, and fills a groove between the outdoor side edge portion of the indoor frame and the indoor side edge portion of the outdoor frame so that the inside of the outdoor side edge portion and the indoor side edge portion is A padding portion that is flush with the surface, and a soft synthetic resin layer that is integrally formed with the padding portion and that is pressed against the outdoor side edge portion and the indoor side edge portion that are deformed during caulking The heat insulation sash characterized by having done. 2. The heat-insulating sash according to claim 1, wherein the soft synthetic resin layer includes a built-up portion of the interposer and
A heat insulating sash that is integrally molded by a color molding method.