JPH0799066B2 - Insulation sash - Google Patents

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 capable of preventing a decrease in heat insulating performance through a cover material, and having a sufficient sealing property even with a heat insulating sash using a heat insulating bridge.

[0002]

2. Description of the Related Art Conventionally, as a heat insulating sash, there is a heat insulating sash in which a frame and a shoji are compositely assembled through a heat insulating material to reduce heat transfer from the outside to the inside. For example, in the upper frame, the upper frame is composed of two members, an outer member made of aluminum and an inner member, and these outer member and inner member are connected via a heat insulating bridge made of synthetic resin. . The heat insulating bridge prevents heat transfer from the outer member to the inner member, prevents the inner member from being cooled, and makes the heat transmission coefficient of the heat insulating sash extremely small. Of course, the lower frame, the vertical frame, the shoji, etc. are also configured in the same manner.

In the heat insulating sash thus constructed, for example, as disclosed in Japanese Utility Model Publication No. 4-25913, in order to prevent the inner members of the upper frame and the lower frame from being exposed to the outside, In order to prevent the above-described heat insulating bridge from being seen from the outside and improve the design, a cover member made of a synthetic resin that covers the exposed portion of the inner member and hides the heat insulating bridge may be attached. In the above publication, such a cover material is formed of a synthetic resin to have a closed cross-section structure, and a fin portion or the like is extended to a necessary portion.

[0004]

However, the surface of the cover material is configured to directly contact the surface of the inner member. That is, the cover member is attached to the inner member in a surface contact state. Therefore, if the cover material is exposed to the outside air and is cooled, the cold heat of the cover material may be transferred to the inner member through the area of the surface contact, and there is a concern that the heat insulation performance may deteriorate, which is a problem. There is.

Further, in the upper frame of the heat insulating sash having the above-mentioned structure, the sealing material of the upper bar of the outer shoji is brought into contact with the upper rail hanging from the outer member of the upper frame to maintain the sealing property. . However, since this sealing material is provided on the outer member of the upper rail of the shoji, it is difficult to provide a mating member to contact with the sealing material provided on the inner member of the upper rail of the outer shoji. Sometimes. That is, the position of the sealing material of the inner member is the position of the heat insulating bridge that connects the outer member of the upper rail of the outer shoji and the inner member, and at this position, the portion hanging from the outer member or the inner member is formed. Is difficult. As a result, in the heat insulating sash having the above-mentioned structure, it was not possible to seal with the sealing material of the inner member, and the sealing property was not always sufficient.

The object of the present invention has been made in view of the above-mentioned circumstances, and it is possible to prevent the deterioration of the heat insulating performance through the cover material and, even if it is a heat insulating sash using a heat insulating bridge, seal It is to provide a heat insulating sash having sufficient properties.

[0007]

To achieve this object, the first aspect of the present invention is that the frame member comprises an outer member and an inner member,
A heat insulating sash is provided between the outer member and the inner member, and a heat insulating bridge is interposed between the outer member and the inner member, and a cover member made of a synthetic resin covering the outer exposed portion of the inner member and the heat insulating bridge is provided from the outer member to the inner member. Is abutted against the inner member in a non-surface contact state.

According to a second aspect of the present invention, the vertical frame is composed of an outer member and an inner member, and a heat insulating bridge is interposed between the outer member and the inner member to cover the external exposed portion of the inner member and the heat insulating bridge. In the heat insulating sash in which the resin vertical frame cover material is provided from the outer member to the inner member, the vertical frame cover material is integrally formed with a seal seat portion with which the seal material provided on the vertical frame of the shoji comes into contact. It is characterized by being.

Further, according to claim 3, the upper frame is composed of an outer member and an inner member, a heat insulating bridge is interposed between the outer member and the inner member, and the outer exposed portion of the inner member and the heat insulating bridge are covered. In a heat insulating sash in which a resin upper frame cover material is provided from the outer member to the inner member, a seal in which the seal material provided on the upper crosspiece of the outer shoji comes into contact with a portion of the upper frame cover material that is below the heat insulating bridge. It is characterized in that the seat portion is integrally formed.

[0010]

As described above, according to the first aspect of the present invention, the cover member is brought into contact with the inner member of the frame member in a non-surface contact state, for example, in a line contact state. Therefore, even if the cover material is exposed to the outside air and cooled, the cold heat of the cover material is significantly less transmitted to the inner member through the non-surface contact portion, and there is almost no fear that the heat insulation performance is deteriorated. .

According to the second aspect of the present invention, the vertical frame cover member is integrally formed with the seal seat portion against which the seal member provided on the vertical frame of the shoji contacts. Therefore, the sealing property can be made sufficient.

Further, in the third aspect of the present invention, a seal seat portion with which the seal material provided on the upper crosspiece of the shoji screen abuts is integrally formed at a portion of the upper frame cover material that is below the heat insulating bridge. Therefore, even when the sealing material of the shoji screen is located below the heat insulating bridge, the seal seat portion formed on the upper frame cover material functions as a counterpart member of the sealing material of the shoji screen. Therefore, double sealing can be achieved even with a heat insulating sash, and sufficient sealing performance can be achieved.

[0013]

EXAMPLE A heat insulating sash according to an example of the present invention will be described below. FIG. 1 is a view of a heat insulating sash according to an embodiment of the present invention as viewed from the indoor side. In this figure, the opening frame 10 is four-sidedly assembled from an upper frame 11, a lower frame 12, a left vertical frame 13, and a right vertical frame 14, and the opening frame 10 has a sliding door 15
And the shoji paper sliding door 16 is stored in a sill. Gabion 15
And the inner shoji 16 have upper bars 17, 18 and lower bars 19, respectively.
20, middle crosspieces 21, 22, left vertical frame 23, assorted inner frame 24,
Also, it is composed of a combination outer frame and a right vertical frame 25 which are not shown.

FIG. 2 is a sectional view taken along the line [B]-[B] in FIG. In the figure, the upper frame 11 is composed of an outer member 11a and an inner member 11b that are arranged to face each other. Above the outer member 11a and the inner member 11b, the groove grooves 31a and 31b are vertically arranged in two rows facing each other.
Is formed, and the heat insulating bridges 33, 33 made of synthetic resin are fitted into these groove grooves 31a, 31b by caulking.

The upper rails 17 and 18 of the external shoji and the internal shoji consist of outer members 17a and 18a and inner members 17b and 18b, respectively. The heat insulation bridges 37 and 37 made of synthetic resin are provided in the groove grooves 36a and 36b. Has been inserted. Pair glass (registered trademark) 38, 38 is attached to the upper crosspieces 17, 18 via gaskets 39, 39. Further, at the upper ends of the outer member 17a and the inner member 17b of the shoji screen, a seal member 41 that abuts an upper rail 40 that hangs from the outer member 11a of the upper frame as a seal seat portion, and a lower member that hangs from an upper frame cover member 46 described later. The seal member 42 that abuts the second hanging portion 55 as a seal seat portion is provided. Outer member 18a of the shoji screen
Also on the upper end of the inner member 18b, a seal member 43 that abuts a third hanging portion 58 that hangs from an upper frame cover member 46, which will be described later, as a seal seat portion, and a hanging piece 44 that hangs from the inner member 11b. A sealing member 45 that abuts as a part is provided. Thereby, a double seal is realized in each of the external shoji and the internal shoji.

Further, in this embodiment, the inner member 11 of the upper frame is
An upper frame cover member 46 made of synthetic resin is provided to cover the externally exposed portion of b and the heat insulating bridge 33. In the outer member 11 a of the upper frame, the upper frame cover member 46 has a plate-shaped first hanging portion 47 extending along the inner surface of the hanging upper rail 40. Engagement portions 50 and 51 that engage with the engagement portions 48 and 49 of the upper rail 40 are formed at the upper and lower ends of the first hanging portion 47, and the rib 52 extending from the first hanging portion 47 is formed. It is in contact with the inner surface of the upper rail 40.
Further, the upper frame cover member 46 has a first horizontal portion 54 that extends horizontally by contacting the protrusion 53 formed on the outer member 11a of the upper frame.

Further, the upper frame cover member 46 has a hollow second hanging portion 55 below the heat insulating bridge 33.
have. As described above, the seal member 42 of the inner member 17b of the shoji screen is in contact with the second hanging portion 55. This is because it is basically difficult to provide a hanging portion below the heat insulating material bridge 33, and more specifically, when extending from the outer member 11a of the upper frame as a mating member of the sealing material 42. In addition, since the inside of the sealing material 42 is the inside of the room, outside cold heat is transmitted to the inside of the room. On the other hand, when it is extended from the inner member 11b of the upper frame as a counterpart member of the sealing material 42, This is because the part that is originally on the indoor side is exposed to the outside of the room, which leads to a decrease in heat insulation performance. Therefore, with this configuration, the sealing material 41 of the outer member 11a of the upper frame,
By cooperating with the sealing material 42 of the inner member 11b, sufficient sealing performance can be achieved.

Further, the upper frame cover member 46 has a second horizontal portion 56 extending along the inner member 11b of the outer frame while being in contact therewith. However, the second horizontal portion 56 is
Although it is in surface contact with b, the contact area is smaller than in the conventional case, and the upper frame cover member 4 passes through this surface contact portion.
The amount of cold heat transmitted from 6 to the inner member 11b is reduced as compared with the conventional case.

Further, the upper frame cover member 46 has a third hanging portion 58 that hangs along an upper rail 57 that hangs from the inner member 11b of the outer frame. A rib 60a extending so as to engage with an engaging portion 59 at the lower end of the upper rail 57 is formed at the lower end portion of the third hanging portion 58.
The hanging portion 58 is formed with three ribs 60b, 60c, 60d extending toward the upper rail 57. These ribs 60a, 60b, 60c, and 60d have non-surface contact, for example, line contact, at their tips at the top rail 5 thereof.
It is in contact with 7. Therefore, the cold heat is significantly reduced from the upper frame cover member 46 to the inner member 11b of the upper frame through the line contact portion, and the heat insulation performance is improved.

Since the upper frame cover member 46 covers the externally exposed portion of the inner member 11b of the upper frame, the inner member 1
Of course, it also plays the role of heat insulation of 1b, and since it also covers the heat insulating bridge 33, the design is improved.

Next, FIG. 3 is a sectional view taken along the line [C]-[C] in FIG. In this figure, the lower frame 12 is composed of a lower frame outer member 12a and a lower frame inner member 12b, and heat insulating bridges 63, 63 made of synthetic resin are interposed between them. Further, rails 64 and 65 for engaging with the door roller 72 are formed on the upper portions of the outer member 12a and the inner member 12b of the lower frame, respectively.

The lower crosspieces 19 and 20 of the external and internal shoji screens are composed of outer members 19a and 20a and inner members 19b and 20b. Outer members 19a, 20a and inner member 19 of the lower rail
Insulation bridge 6 made of synthetic resin is provided between b and 20b.
9,69 are interposed. Furthermore, the heat insulating bridge 69 at the lowest position is formed with notches 69a at predetermined intervals.

The upper surface of the outer frame 73 of the door roller 72 is brought into contact with the second insulating bridge 69 from the bottom, and is locked by a known means (not shown). Further, the lower end of the outer frame 73 is placed and supported on the cutout heat insulating bridge 69 at the lowest position. As a result, the vertical displacement of the door roller 72 is eliminated, and
There is no misalignment in the finding direction. In addition, door car 72
The lower portions of both sides of the inner frame 74 are positioned and pressed between the cutouts 69a of the lowermost heat insulating bridge 69. As a result, blurring of the door roller 72 in the prospective direction is suppressed.

Further, in this embodiment, the inner member 12 of the lower frame is used.
A lower frame cover material 75 made of synthetic resin is provided to cover the externally exposed portion of b and the heat insulating bridge 63. The lower frame cover member 75 is a lower frame outer member 1 that supports the heat insulating bridge 63.
It has a hanging portion 77 that hangs along the vertical piece 76 of 2a. An engaging portion 79 that engages with the engaging portion 78 of the vertical piece 76 is formed at the lower end of the hanging portion 77.
In the hanging part 77, the rib 8 placed on the upper part of the vertical piece 76
0 is formed. A sealing material 81 provided at the lower end of the inner member 19b of the lower rail of the outer shoji is in contact with the outer surface of the hanging portion 77 as a seal seat portion. As a result, like the upper frame, the seal seat portion can be provided in a place where the mating member of the sealing material 80 is difficult to be provided, and the outer member 1 of the lower crosspiece of the shoji screen can be provided.
A double seal is realized in cooperation with the sealing material 82 at the lower end of 9a.

Further, the lower frame cover member 75 has a horizontal portion 83 extending horizontally from the hanging portion 77 and the inner member 1 of the lower frame.
2b has a rail 65 and a vertical portion 85 extending vertically along the hanging piece 84. At the lower end of the vertical portion 85, the engaging portion 8 that engages with the engaging portion 86 below the hanging piece 84.
7 are formed. A rib 88 that abuts the lower frame inner member 12b at the same height as the horizontal portion 83 at the middle portion of the vertical portion 85.
Is formed on the upper end of the vertical portion 85.
An engaging portion 90 that engages with the engaging portion 89 is formed.
The engagement portion 87, the rib 88, and the engagement portion 90 are in non-surface contact, for example, in line contact with the rail 65 and the hanging piece 84. Therefore, even if the lower frame cover material 75 is exposed to the outside air and is cooled, it is significantly reduced that cold heat is transferred from the lower frame cover material 75 to the inner member 12b of the lower frame through this line contact portion, and the heat insulation is reduced. Performance is improved.

Further, the sealing material 91 provided at the lower end of the outer member 20a of the lower rail of the inner shoji is in contact with the vertical portion 85 of the lower frame cover member 75 as a seal seat portion. Therefore, in cooperation with the sealing material 92 at the lower end of the inner member 20b of the lower rail, sufficient sealing performance is achieved.

Since the lower frame cover material 75 covers the externally exposed portion of the inner member 12b of the lower frame, the inner member 1
Of course, it also plays the role of heat insulation of 2b, and since it also covers the heat insulation bridge 63, the designability is also improved.

Next, FIG. 4 is a sectional view taken along the line [D]-[D] of FIG. In the figure, the left vertical frame 13 is composed of a left vertical frame outer member 13a and a left vertical frame inner member 13b, and a heat insulating bridge 10 made of synthetic resin between them.
1, 101 are interposed.

The left vertical frame 23 of the shoji screen is the left vertical frame outer member 23.
It is composed of a and a left vertical frame inner member 23b. A heat insulating bridge 102 made of synthetic resin is interposed between the outer member 23a and the inner member 23b. The outer member 23a includes
A sealing material 103 is provided, and this sealing material 103
Is in contact with a rail 104 extending from the left vertical frame outer member 13a.

Further, in this embodiment, the left vertical frame inner member 13
A left vertical frame cover member 105 made of synthetic resin is provided to cover the externally exposed portion of b and the heat insulating bridge 101. The left vertical frame cover material 105 is provided on the vertical wall 10 of the left vertical frame outer member 13a.
6 has a first extending portion 107 extending in surface contact with the tip end of which is engaged with the engaging portion 108 of the outer member 13a. Further, the second extending portion 109 extends from the first extending portion 107 in the finding direction. The second extending portion 109 is integrally formed with a seal material 110 that abuts the end portion of the left vertical frame inner member 23b as a seal seat portion. Furthermore, in the prospective direction from the second extending portion 109,
The 3rd extension part 111 is extended comparatively long, and by the outer side of this 3rd extension part 111, the left vertical frame inner member 13b, the heat insulation bridge 101, and the 3rd extension part 111 mentioned later. A relatively large space A in which air does not convection is formed. The space A also provides heat insulation. Further, a fourth extending portion 113 extends from the third extending portion 111 in the finding direction at a predetermined distance from the rail 112 of the left vertical frame inner member 13b. The tip of the fourth extending portion 113 is in contact with the left vertical frame inner member 13b in non-surface contact (for example, line contact), and the bent portion of the third extending portion 111 and the fourth extending portion 113. Includes the engaging portion 11 at the tip of the rail 112.
4. An engagement projection 1 that engages with the non-surface contact (for example, line contact)
15 is formed. Therefore, the left vertical frame cover material 1
Even if 05 is exposed to the outside air and cooled, the cold heat is remarkably rarely transferred from the left vertical frame cover member 105 to the inner member 13b of the left vertical frame through the portion of this line contact, and the heat insulation performance is improved. There is.

Further, since the left vertical frame cover material 105 covers the externally exposed portion of the left vertical frame inner member 13b, the inner member 1
Of course, it also plays the role of heat insulation of 3b, and since it also covers the heat insulating bridge 101, the designability is also improved.

Next, FIG. 5 is a sectional view taken along the line [E]-[E] of FIG. In the figure, the right vertical frame 14 is composed of a right vertical frame outer member 14a and a right vertical frame inner member 14b, and between these, a heat insulating bridge 12 made of synthetic resin is provided.
1,121 are interposed. The right vertical frame 25 of the shoji screen is
The right vertical frame outer member 25a and the right vertical frame inner member 25b are included. Between the outer member 25a and the inner member 25b,
A heat insulating bridge 122 made of synthetic resin is interposed. The rail 123 of the right vertical frame inner member 14b is provided with the right vertical frame inner member 2
Sealing material 124 that abuts the end of 5b as a seal seat
Is provided.

Further, in the present embodiment, the right vertical frame inner member 14
A right vertical frame cover member 125 made of synthetic resin is provided to cover the externally exposed portion of b and the heat insulating bridge 122. The right vertical frame cover material 125 has a first extending portion 126 that extends in parallel to the heat insulating bridge 121 at a predetermined interval,
The tip of this is engaged with the engaging portion 127 of the outer member 14a. The bent portion 1 is provided on the indoor side of the first extending portion 126.
28 is formed, and a rib 128 a extending from the rib 28 abuts on the heat insulating bridge 121. This bent portion 12
The second extending portion 129 extends from 8 in the finding direction. The second extending portion 129 also serves as a seal seat portion of the sealing material 130 provided at the tip of the right vertical frame outer member 25a. The third extending portion 131 extends from the second extending portion 129 in the prospective direction. Further, the fourth extending portion 132 extends from the third extending portion 131 in the prospective direction at a predetermined distance from the rail 133. The tip end of the fourth extending portion 132 is in contact with the right vertical frame inner member 14b in non-face contact (for example, line contact), and the third extending portion 131 and the fourth extending portion 132 are bent. On the rail 1
An engagement protrusion 135 that engages with the engaging portion 134 at the tip of 33 by non-surface contact (for example, line contact) is formed. Therefore, even if the right vertical frame cover material 135 is exposed to the outside air and is cooled, the cold heat is significantly less likely to be transferred from the right vertical frame cover material 135 to the right vertical frame inner member 14b through the portion of the line contact, The heat insulation performance is improved. Further, the second extending portion 129, the third extending portion 131, the fourth extending portion 132, and the right vertical frame inner member 14b form a relatively large space B in which air does not convection. The space B also provides heat insulation. In addition, insulation bridge 1
A gap with a predetermined interval is formed between the support portion 121a of the reference numeral 21 and the bent portion 128, and even if the cover material 135 is cooled, the cold heat thereof is not directly transmitted to the inner member 14b. It has been devised so that it can be insulated.

Further, the second extending portion 129 of the right vertical frame cover material 135 also serves as a seal seat portion of the seal material 130 provided at the tip of the right vertical frame outer member 25a, so that it is located on the indoor side. In cooperation with the sealing material 124, the sufficient sealing performance is achieved.

Further, since the right vertical frame cover member 135 covers the externally exposed portion of the right vertical frame inner member 14b, it does not only serve to insulate the inner member 14b, but also covers the heat insulating bridge 121. Therefore, the designability is also improved.

Next, the watertight device for the heat insulating sash will be described with reference to FIGS. 6 to 8.

Next, FIG. 6 is a sectional view of the lower frame in which the inner shoji is positioned when the shoji is closed, and is a view for showing the watertight device. In the watertight device according to the present embodiment, the first opening 171 for guiding the rainwater stored inside the inner rail 65 into the lower frame cover member 75 is formed at the lower end of the inner rail 65. The first opening 171 may be formed near the inner rail 65 of the dish plate portion 172 of the lower frame inner member 20b.

In the lower frame cover material 75, the rib 88 is cut out, and the lower side of the vertical portion 85 of the cover material 75 is cut out to form a second opening 173. Further, the lower portion of the hanging portion 77 (the rising wall) of the cover material 75 is cut out to form the third opening 174, and the rib 80 of this is cut out. Outside the third opening 174,
Drain valve (check valve) that can only discharge rainwater to the outside 1
75 are provided. In addition, in the lower frame outer member 12a,
A dish plate portion 176 for storing rainwater is formed from a lower portion of the outer rail 64 toward the indoor side, and a fourth opening 177 is formed below the outer rail 64.

Such first to fourth openings 171 and 17
The watertight device consisting of 3,174,177 is provided in the lower frame part where the inner shoji is located when the shoji is closed, and the watertight device in the lower frame part where the outer shoji is located when the shoji is closed is the same as the conventional one. It is configured.

Next, with reference to FIGS. 7 and 8, the arrangement of the first to fourth openings 171, 173, 174, 177 in the finding direction will be described. FIG. 7 is a plan view of a portion of the lower frame in which the inner shoji is located when the shoji is closed, and FIG. 8 is a partially cutaway perspective view of the lower frame according to the watertight structure of the present embodiment. First opening 1
As shown in FIG. 7, two sets of 71 are provided in pairs. The second openings 173 are provided in two sets, one for each.
The position is displaced with respect to the first opening 171 in the finding direction. Two sets of third openings 174 are provided, one for each.
Although the position is displaced with respect to the second opening 173 in the mounting direction, the position is substantially the same with respect to the first opening 171 in the mounting direction. These first to third openings 171 and 1
73 and 174, if the second opening 173 is displaced from the other in the finding direction, it is possible to prevent rainwater from entering the room due to the reverse flow of the drain valve 175, as will be described later.
The number and displacement distance are design matters. Also, the fourth
The opening 177 is for simply draining rainwater from the plate portion 176.

As shown in FIG. 8, in the indoor side of the inner shoji when the shoji is closed, the rainwater that has entered the inner side of the inner rail 65 passes through the first opening 171 of the inner rail 65 to the lower frame. It is guided into the cover material 75. The rainwater that has entered the cover material 75 is flown in the finding direction as shown by the arrow in FIG. 8, and is guided further downward through the second opening 173 of the vertical portion 85 of the cover material. After that, rainwater is further made to flow in the finding direction, and the third opening 1 of the hanging part 77 of the cover material
It is guided to the drain valve 175 (FIG. 6) via 74, and is discharged to the dish plate part 176 via the drain valve 175 which is this check valve. From the plate portion 176, the fourth opening 17 of the outer rail 64 is provided.
7 or through the notch 64a (FIG. 7) at the end of the outer rail 64 to the outside.

On the other hand, when the shoji screen is closed, on the indoor side of the shoji screen, the rainwater that has entered the indoor side of the inner rail 65 passes through a notch (not shown) at the end of the inner rail 65. It flows into the dish plate portion 176 between the outer rail 64 and the inner rail 65, and is stored while balancing the pressure between the indoor side and the outdoor side, and through a notch or the like (not shown) in the outer rail 64. Is discharged.

As described above, since the rainwater that has entered the inner side of the inner rail 65 can be discharged sufficiently and reliably, the watertightness can be remarkably improved.

Further, since the second opening 173 is misaligned with respect to the others in the finding direction, even if rainwater may flow back through the drain valve 175 (FIG. 6), which is a check valve, Covers the cover material 175 through the third opening 174.
However, there is no possibility of flowing into the room through the second opening 173 and the first opening 171.

The present invention is not limited to the above-mentioned embodiment, but can be variously modified.

[0046]

As described above, according to the first aspect, the cover member is brought into contact with the inner member of the frame member in a non-surface contact state, for example, in a line contact state. Therefore, even if the cover material is exposed to the outside air and cooled, the cold heat of the cover material is significantly less transmitted to the inner member through the non-surface contact portion, and there is almost no fear that the heat insulation performance is deteriorated. .

According to the second aspect of the present invention, the vertical frame cover member is integrally formed with the seal seat portion against which the seal member provided on the vertical frame of the shoji contacts. Therefore, the sealing property can be made sufficient.

Further, in the third aspect of the present invention, a seal seat portion with which the seal material provided on the upper rail of the shoji screen abuts is integrally formed at a portion of the upper frame cover material that is below the heat insulating bridge. Therefore, even when the sealing material of the shoji screen is located below the heat insulating bridge, the seal seat portion formed on the upper frame cover material functions as a counterpart member of the sealing material of the shoji screen. Therefore, double sealing can be achieved even with a heat insulating sash, and sufficient sealing performance can be achieved.

[Brief description of drawings]

FIG. 1 is a view of a heat insulating sash according to an embodiment of the present invention as viewed from the indoor side.

FIG. 2 is a sectional view taken along the line [B]-[B] in FIG.

FIG. 3 is a cross-sectional view taken along the line [C]-[C] of FIG.

FIG. 4 is a cross-sectional view taken along the line [D]-[D] of FIG.

5 is a cross-sectional view taken along the line [E]-[E] of FIG.

FIG. 6 is a cross-sectional view of the lower frame on which the inner shoji is located when the shoji is closed, showing the watertight device.

FIG. 7 is a plan view of a portion of the lower frame in which the inner shoji is located when the shoji is closed.

FIG. 8 is a partially cutaway perspective view of a lower frame of the watertight device of this embodiment.

[Explanation of symbols]

 11 Upper Frame (Frame Material) 11a Upper Frame Outer Member 11b Upper Frame Inner Member 12 Lower Frame (Frame Material) 12a Lower Frame Outer Member 12b Lower Frame Inner Member 13 Left Vertical Frame (Frame Material) 13a Left Vertical Frame Outer Member 13b Left Vertical Frame Inside Material 14 Right vertical frame (frame material) 14a Right vertical frame outer member 14b Right vertical frame inner member 33 Insulation bridge 42 Seal material for upper bar of outer shoji 46 Upper frame cover material (cover material) 55 Hanging portion of upper frame cover material ( Seal seat part) 63 Insulation bridge 75 Lower frame cover material (cover material) 102 Insulation bridge 105 Left vertical frame cover material (cover material) 121 Insulation bridge 125 Right vertical frame cover material (cover material) 129 Left vertical frame cover material 2 Extension part (seal seat part) 130 (vertical frame) seal material

Claims (3)

[Claims] 1. A cover material made of synthetic resin, wherein a frame member is composed of an outer member and an inner member, a heat insulating bridge is interposed between the outer member and the inner member, and covers the external exposed portion of the inner member and the heat insulating bridge. In the heat insulating sash provided from the outer member to the inner member, the cover material is in contact with the inner member in a non-surface contact state. 2. A vertical frame composed of an outer member and an inner member, a heat insulating bridge interposed between the outer member and the inner member, and a synthetic resin vertical frame for covering the external exposed portion of the inner member and the heat insulating bridge. In the heat insulating sash in which the cover member is provided from the outer member to the inner member, the vertical frame cover member is integrally formed with a seal seat portion against which the seal member provided on the vertical frame of the shoji contacts. Insulation sash to do. 3. An upper frame made of synthetic resin, comprising an outer member and an inner member, a heat insulating bridge interposed between the outer member and the inner member, and covering the external exposed portion of the inner member and the heat insulating bridge. In the heat insulating sash provided with the cover member extending from the outer member to the inner member, a seal seat portion, which a seal member provided on the upper rail of the outer shoji abuts, is integrally formed at a portion of the upper frame cover member which is below the heat insulating bridge. A heat insulating sash characterized by being formed.