JP7134203B2 - Airtight/insulating structure of sash window - Google Patents

Description

The present invention relates to an airtight/insulating structure for sash windows.

Traditionally, buildings such as buildings and houses have been equipped with different opening and closing methods and functions, such as double sliding windows, double-hung windows, fixed windows (fixed windows), single-sided windows, outward-opening windows, inward-tilting windows, folding windows, and rotating windows. Different sash windows are used.

Among these, the sash window of the double sliding window has a frame fixed to the outer edge of the opening of the building, and two shojis can be slid left and right inside the frame to open and close the opening. It is delivered and configured. Each shoji has a rectangular frame consisting of an upper frame, a lower frame, and left and right vertical frames (one of the vertical frames is a meeting frame) made of aluminum or resin. and an encased glass panel.

Each shoji is provided with a guide groove having a recessed section in the upper frame of the shoji, and the guide groove is engaged with an upper rail formed in the upper frame of the frame body. Furthermore, a door roller is housed in the lower frame, and the lower rail and the door roller are engaged with each other on a lower rail having a convex cross section provided on the lower frame of the frame body. Thereby, the shoji is provided so as to be slidable in the left-right direction while being guided by the upper rail and the lower race of the frame.

In addition, on the upper frame and the lower frame, intermediate rails arranged between the upper frames of one shoji and the other shoji and between the lower frames of each other protrude. Each shoji is provided so as to be slidable.

On the other hand, in the double sliding window sash, a smoke return with a substantially L-shaped cross section is provided integrally with the meeting frame of the shoji, and when the pair of shoji is closed, the meeting frame overlaps and engages with each other. is configured to

In addition, a resin cover (resin material) is attached to the outer frame of the shoji to ensure heat insulation and airtightness on the outside of the aluminum frame, and the pair of shoji are closed to overlap each other. There is a structure in which the resin cover of one shoji abuts against the aluminum profile of the other shoji to ensure heat insulation and airtightness (see, for example, Patent Document 1).

Furthermore, in general, in the double sliding window sash 100 of a middle-rise building, as shown in FIG. A contact portion/airtight line R1 is provided on the indoor side of the smoke return 4, and a drain 5 is provided on the outdoor side of the airtight line R1 to prevent water such as rainwater from entering. .

In a double sliding window sash 100 for a house, for example, as shown in FIG. An airtight line R1 is provided on the outdoor side of the smoke return 4, and the airtight line (abutting portion) R1 is configured to also serve as a drainer.

JP 2007-51535 A

However, in the above conventional double sliding window sashes, a resin material (resin cover) that is excellent in heat insulation but prone to heat shrinkage is attached to one of the sashes, and this resin material is the aluminum type of the other sash. Since heat insulation and airtightness are ensured by contacting the material, if the resin material undergoes heat shrinkage, a gap will form between the aluminum shape and the resin material, making it impossible to ensure heat insulation and airtightness. It was likely to disappear.

In addition, like the double sliding window sashes of mid-to-high-rise buildings, the resin material is provided on the indoor side, the airtight line is arranged on the indoor side, and the resin material that constitutes the heat insulating layer is provided on the side facing the indoor side of the meeting frame. Then, in order to obtain the desired heat insulation performance, the width of the meeting frame is increased in accordance with the size of the resin material. As a result, there is a risk of deterioration in appearance (decrease in design), high cost, and the like.

In addition, like the double sliding window sash of a house, a contact part/airtight line is provided on the outdoor side where the resin material of one meeting frame contacts the aluminum shape of the other meeting frame, and this airtight line ( If the abutment portion also functions as a drainer, the temperature difference between the outside and the room will affect the dew condensation around the airtight line on the outdoor side, making it difficult to ensure watertightness.

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide an airtight/heat-insulating structure for a sash window that can keep the width of the sashes small while ensuring/improving the airtightness and heat-insulating properties. .

In order to achieve the above objects, the present invention provides the following means.

The airtight/insulating structure of the sash window of the present invention comprises a plurality of shoji supported by a frame attached to the outer periphery of an opening formed in a building, and at least one shoji is slidable on the frame. and an airtight/insulating structure for a sash window supported so that the opening can be opened and closed, wherein the sash window is an aluminum-resin composite sash, and the shoji is composed of an upper frame, a lower frame, a vertical frame, and a combination A frame having a frame and a glass panel having an outer peripheral edge held by the frame and forming a window surface are provided. With the meeting frames overlapping in the depth direction, the airtight material attached to the surface of the one meeting frame facing each other and the airtight material attached to the face of the other meeting frame are in close contact. a resin material that forms a heat insulating layer; the airtight material is made of an elastic material; A resin cover is attached so as to cover a side surface of one of the meeting stiles facing the inside of the room, and a plurality of hollow portions are formed along the projection direction between the resin cover and the side surface facing the room. a first airtight/insulating structure disposed in the vertical direction of the extending direction of the meeting frame in a state where the meeting frame and the other meeting frame overlap; an upper frame of the frame body and the meeting frame A second airtight/heat insulating structure disposed between the stile and the upper stile, and a third airtight/heat insulating structure disposed between the lower frame of the frame body and the meeting stile and the lower stile. a fourth airtight/heat insulating structure disposed between the first airtight/heat insulating structure and the third airtight/heat insulating structure; and the first airtight/heat insulating structure and the second airtight/heat insulating structure. and a fifth hermetic/insulating structure disposed therebetween .

Further, in the airtight/heat insulating structure of the sash window of the present invention, the airtight material is provided on the interior side of the smoke return provided between the one meeting frame and the other meeting frame. is desirable.

According to the sash window of the present invention, it is possible to reduce the width of the meeting frame while ensuring/improving airtightness and heat insulation.

1 is a cross-sectional view showing a double sliding window sash (sash window), an airtight/insulating structure according to an embodiment of the present invention; FIG. 1 is a longitudinal sectional view showing a double sliding window sash (sash window) and an airtight/insulating structure according to an embodiment of the present invention; FIG. FIG. 2 is an enlarged view of part S1 of FIG. 1, and is a cross-sectional view showing an airtight/insulating structure of a double sliding window sash (sash window) according to one embodiment of the present invention. FIG. 3 is an enlarged view of the S2 portion of FIG. 2, and is a longitudinal sectional view showing the airtight/insulating structure of the upper part of the double sliding window sash (sash window) according to one embodiment of the present invention. FIG. 3 is an enlarged view of the S3 portion of FIG. 2, and is a vertical cross-sectional view showing the airtight/insulating structure of the lower part of the double sliding window sash (sash window) according to one embodiment of the present invention. FIG. 4 is a perspective view showing a fourth airtight/insulating structure of a double sliding window sash (sash window) according to an embodiment of the present invention; FIG. 4 is a perspective view showing a fourth airtight/insulating structure of a double sliding window sash (sash window) according to an embodiment of the present invention; FIG. 4 is a cross-sectional view showing a fourth airtight/heat insulating structure and a fifth airtight/heat insulating structure of a double sliding window sash (sash window) according to an embodiment of the present invention; FIG. 11 is a perspective view showing a fifth airtight/insulating structure of a double sliding window sash (sash window) according to an embodiment of the present invention; FIG. 11 is a vertical cross-sectional view showing a modification of the fifth airtight/insulating structure of the double sliding window sash (sash window) according to one embodiment of the present invention. FIG. 11 is a vertical cross-sectional view showing a modification of the fifth airtight/insulating structure of the double sliding window sash (sash window) according to one embodiment of the present invention. FIG. 5 is a longitudinal sectional view showing a modification of the airtight/insulating structure of the double sliding window sash (sash window) according to one embodiment of the present invention. 1 is a cross-sectional view showing an airtight/insulating structure of a conventional double sliding window sash (sash window) of highly watertight type. FIG. 1 is a cross-sectional view showing an airtight/insulating structure of a conventional low watertight type double sliding window sash (sash window). FIG.

Hereinafter, an airtight/insulating structure of a sash window according to one embodiment of the present invention will be described with reference to FIGS. 1 to 12. FIG.

Here, in this embodiment, the sash window according to the present invention will be described as a double sliding window, but the present invention is applicable to any sash window provided with a shoji and a meeting frame. The sash window according to the above may be a sash window with different opening and closing methods and functions, such as a double sliding window and a single sliding window.

First, as shown in FIGS. 1 and 2, the double sliding window sash (sash window) A of the present embodiment includes an upper frame 10a, a lower frame 10b, one vertical frame 10c, and a combination frame 10d of the other vertical frame. and a glass panel (shoji main body) 11 whose outer peripheral edge is held by the frame 10 to form a window surface.

The frame 10 is formed with a hollow structure using an aluminum profile (aluminum part) or a resin profile. Each frame 10 (10a, 10b, 10c, 10d) is formed by providing a fitting recess formed between a pair of side wall portions on the inner peripheral side, and the outer peripheral edge of the glass panel 11 is formed in this fitting recess. is configured to engage and retain the

As shown in FIGS. 2, 4, and 5, each shoji 12, 13 is arranged by engaging the upper frame 10a with an engagement recess provided in the upper frame 16 of the frame 15. As shown in FIG. The lower frame 10b is provided with an engagement recess having a concave cross-section opening downward and a door roller 18 housed in the engagement recess. The engaging recess and the door roller 18 are engaged with each other. Thereby, the shoji 12 and 13 are guided by the upper frame 16 and the lower frame 17 of the frame 15, and are provided slidably in the left-right direction (width direction T1).

Furthermore, in the upper frame 16 (lower frame 17) of the present embodiment, an intermediate wall portion ( Intermediate rails 20 are provided, and each shoji 12 and 13 is slidably provided so as to be guided by these upper and lower intermediate walls 20 as well.

As shown in FIGS. 1 and 3, a pair of shojis 12 and 13 is provided with a smoke return 4 having an L-shaped cross section on the pair of shojis 12 and 13. are overlapped and the smoke returners 4 are engaged with each other.

On the other hand, in the double sliding window sash A of the present embodiment, the shojis 12 and 13 are closed and the meeting frame 10d is overlapped with each other, and an airtight/insulating structure for securing airtightness (including watertightness) and heat insulation is provided. It has B.

The airtight/heat insulating structure B of the present embodiment includes a first airtight/heat insulating structure B1, a second airtight/heat insulating structure B2, a third airtight/heat insulating structure B3, a fourth airtight/heat insulating structure B4, and a third airtight/heat insulating structure B4. 5 airtight/insulating structure B5.

As shown in FIGS. 1, 2, and 3, the first airtight/insulating structure B1 is configured such that the pair of shojis 12 and 13 overlap each other in the vertical direction in the extension direction of the meeting frame 10d. The second airtight/insulating structure B2 is for securing airtightness and heat insulation in the direction T2, and the second airtight/heat insulation structure B2 is, as shown in FIGS. 10d and the upper frame 10a to ensure airtightness and heat insulation. This is for securing airtightness and heat insulation between the frame 17 and the meeting frame 10d and the lower frame 10b. 6 to 9, the fourth airtight/heat insulating structure B4 is for securing airtightness and heat insulation between the first airtight/heat insulating structure B1 and the third airtight heat insulating structure B3. The fifth airtight/heat insulating structure B5 is for ensuring airtightness and heat insulation between the first airtight/heat insulating structure B1 and the second airtight/heat insulating structure B2.

Specifically, as shown in FIGS. 1 to 5, the first airtight/heat insulating structure B1 of the present embodiment is configured such that the surface of the meeting frame 10d of one shoji 12 facing the meeting frame 10d of the other shoji 13 A first resin material (resin cover) 21 provided in (part) to form a heat insulating layer, and a surface (aluminum part) of the meeting frame 10d of one shoji 12 facing the meeting frame 10d of the other shoji 13. The first airtight material (side airtight seal material) 24.

The first airtight member 24 includes an engaging base end portion 24a for detachably engaging the first engaging portion 23 of one of the meeting rails 10d to position and hold the first airtight member 24, and an engaging base end portion 24a. With the end portion 24a engaged with the first engaging portion 23, it protrudes from the engaging base end portion 24a toward the first resin material 21 of the other meeting frame 10d and also protrudes to the first resin material 21. It is formed with an airtight/insulating body portion 24b with which the directional tip is in close contact.

The first airtight member 24 is made of resin and is elastically deformable, and is formed to have a predetermined length in the vertical direction T2 from the upper side to the lower side of one meeting frame 10d. Further, the first airtight member 24 of the present embodiment is formed so that the tip portion side of the airtight/insulating main body portion 24b has a convex arc shape in cross section. The engaging base end portion 24a is formed in a substantially flat plate shape.

Furthermore, in the present embodiment, in order to improve the heat insulation property, a A resin cover 25 is attached. In addition, the first airtight member 24 of one of the meeting frames 10d is provided on the indoor side of the smoke return 4. As shown in FIG.

As a result, the first airtight/insulating structure B1 of the present embodiment is in contact with the first resin material 21 attached to the meeting frame 10d of the other shoji 13 to form a heat insulating layer, and the first resin material 21. Together with the first airtight material 24 attached to the meeting frame 10d of one shoji 12, a first airtight line R2 is formed inside the room.

Next, the second airtight/insulating structure B2 of the present embodiment for securing airtightness and heat insulation between the upper frame 16 and the meeting frame 10d and the upper frame 10a is shown in FIGS. A groove-shaped second engaging portion 26 is provided along the width direction T1 in the extending direction of the upper frame 16 on the surface facing the outdoor side of the intermediate rail (intermediate wall portion) 20 of the upper frame 16. A second airtight member (upper airtight member) 27 is engaged with and attached to the engaging portion 26 .

Like the first airtight member 24, the second airtight member 27 is detachably engaged with the second engaging portion 26 of the upper frame 16 to position and hold the second airtight member 27. 27a, and in a state in which the engaging base end portion 27a is engaged with the second engaging portion 26, the projecting direction tip portion is in close contact with the upper frame 10a of the other shoji 13 from the engaging base end portion 27a. It is formed including a main body portion 27b.

The second airtight member 27 is made of resin and is formed to be elastically deformable, and is formed to have a predetermined length in the lateral direction reaching approximately both ends in the width direction T1 of the upper frame 16 . Further, the second airtight member 27 of the present embodiment is formed so that the distal end side of the airtight/insulating main body portion 27b has a convex arc shape in cross section, and the engagement base end portion 27a is formed in a substantially flat plate shape.

In the second airtight/insulating structure B2, the tip of the airtight/insulating main body 27b of the second airtight member 27 attached to the intermediate rail 20 of the upper frame 16 is in close contact with the upper frame 10a of the other shoji 13.

As a result, the second airtight/heat insulating structure B2 of the present embodiment forms a second airtight line R3 inside the room by the second airtight material 27 that abuts on the upper frame 10a of the other shoji 13. As shown in FIG.

At this time, the first resin material 21 attached to the other meeting frame 10d to form a heat insulating layer, and the first airtight material 24 attached to the one meeting frame 10d in contact with the first resin material. The second airtight line R3 formed by the second airtight material 27 is formed at a position (different position in the projection direction (depth direction T3)) deviated to the outside of the room from the first airtight line R2 formed by .

Next, the third airtight/insulating structure B3 of this embodiment for securing airtightness and heat insulation between the lower frame 17 and the meeting frame 10d and the lower frame 10b is shown in FIGS. , is generally configured in the form of the second airtight/heat insulating structure B2 turned upside down.

That is, the third airtight/heat insulating structure B3 of the present embodiment is provided on the surface (portion) facing the outdoor side of the intermediate wall portion 20 of the lower frame 17 along the width direction T1 in the extending direction of the lower frame 17. A joint portion 30 is formed, and a third airtight member (lower airtight member) 31 is engaged with and attached to the third engaging portion 30 .

Like the first airtight member 24 and the second airtight member 27, the third airtight member 31 is detachably engaged with the third engaging portion 30 of the lower frame 17 to position and hold the third airtight member 31. With the engaging proximal end portion 31a and the engaging proximal end portion 31a engaged with the third engaging portion 30, the projecting direction tip portion extends from the engaging proximal end portion 31a to the lower frame 10b of the shoji screen 13 on the other side. It is formed with an airtight/insulating main body portion 31b in close contact.

The third airtight member 31 is made of resin and is formed to be elastically deformable, and is formed to have a predetermined length in the lateral direction reaching approximately both ends in the width direction T1 of the lower frame 17 . Further, the third airtight member 31 of the present embodiment is formed so that the tip end side of the airtight/insulating body portion 31b has a convex arc shape in cross section, similar to the first airtight member 24 and the second airtight member 27, and engages. A base end portion 31a is formed in a substantially flat plate shape.

In the third airtight/insulating structure B3, the tip of the airtight/insulating body portion 31b of the third airtight member 31 attached to the intermediate wall portion 20 of the lower frame 17 is in close contact with the lower frame 10b of the other shoji 13. .

As a result, the third airtight/insulating structure B3 of the present embodiment forms a third airtight line R4 inside the room by the third airtight material 31 that contacts the lower frame 10b of the other shoji 13. As shown in FIG.

At this time, the first resin member 21 attached to the other meeting frame 10d to form a heat insulating layer and the first airtight member 24 attached to the one meeting frame 10d in contact with the first resin member 21. A third airtight line R4 formed of the third airtight material 31 is formed at a position (a different position in the prospective direction (depth direction T3)) shifted to the outside of the room from the first airtight line R2 formed by .

Next, the fourth airtight/heat insulating structure B4 of this embodiment is for ensuring airtightness and heat insulation between the first airtight/heat insulating structure B1 and the third airtight heat insulating structure B3. As shown in FIGS. 7 and 8, it is interposed between the lower end of the first airtight member 24 of the first airtight/heat insulating structure B1 and one end of the third airtight member 31 of the third airtight heat insulating structure B3. and a fourth airtight member (airtight piece) 32 made of resin.

The fourth airtight member 32 is provided so as to connect airtight lines respectively formed by the first airtight/heat insulating structure B1 and the third airtight heat insulating structure B3. Further, the fourth airtight member 32 of the present embodiment projects upward (vertical direction T2) and is arranged adjacent to the lower end portion side of the first airtight member 24 of the first airtight/heat insulating structure B1. and a fitting portion 32b recessed in the width direction T1 into which one end of the third airtight member 31 of the third airtight/heat insulating structure B3 is fitted. ing.

Thus, the fourth airtight/heat insulating structure B4 is formed between the lower end of the first airtight member 24 of the first airtight/heat insulating structure B1 and one side end of the third airtight member 31 of the third airtight/heat insulating structure B3. By interposing the fourth airtight member 32, the protruding portion 32a of the fourth airtight member 32 is adjacent to the lower end portion side of the first airtight member 24, and the fitting portion 32b of the fourth airtight member 32 is connected to the fitting portion 32b. 3 By fitting one side end of the airtight material 31, a series of airtight lines are formed in this part, and the airtightness and heat insulation between the first airtight/heat insulation structure B1 and the third airtight heat insulation structure B3 property is suitably ensured.

Next, the fifth airtight/heat insulation structure B5 of the present embodiment is for ensuring airtightness and heat insulation between the first airtight/heat insulation structure B1 and the second airtight heat insulation structure B2. 7 and 8), it is interposed between the upper end of the first airtight member 24 of the first airtight/heat insulating structure B1 and one end of the second airtight member 27 of the second airtight heat insulating structure B2. It is configured with a fifth resin-made airtight member (airtight piece) 33 provided.

Like the fourth airtight member 32, the fifth airtight member 33 is provided so as to connect airtight lines respectively formed by the first airtight/heat insulating structure B1 and the second airtight heat insulating structure B2. In addition, the fifth airtight member 33 of the present embodiment protrudes downward (in the vertical direction T2) and is arranged adjacent to the upper end portion side of the first airtight member 24 of the first airtight/heat insulating structure B1. and a fitting portion 33b recessed in the width direction T1 into which one side end of the second airtight material 27 of the second airtight heat insulating structure B2 is fitted. there is

Thus, the fifth airtight/heat insulating structure B5 is formed between the upper end of the first airtight member 24 of the first airtight/heat insulating structure B1 and one side end of the second airtight member 27 of the second airtight/heat insulating structure B2. By interposing the fifth airtight member 33, the protruding portion 33a of the fifth airtight member 33 is adjacent to the upper end portion side of the first airtight member 24, and the fitting portion 33b of the fifth airtight member 33 is connected to the fitting portion 33b of the fifth airtight member 33. A series of airtight lines are formed in this portion by fitting one side end of the airtight material 27, and the airtightness and heat insulation between the first airtight/heat insulation structure B1 and the second airtight heat insulation structure B2 property is suitably ensured.

Therefore, in the airtight/heat insulating structure B of the sash window A of the present embodiment, the airtightness in the vertical direction T2 in the extending direction of the meeting frame 10d in a state where the meeting frame 10d of the pair of shojis 12 and 13 overlaps each other. A first airtight/insulating structure B1 for securing heat resistance and heat insulating properties is provided, and a first resin material is attached to the meeting frame 10d of the other shoji 13 of the first airtight/heat insulating structure B1 to form a heat insulating layer. 21 and an elastically deformable first airtight member 24 attached to the meeting frame 10d of one shoji 12 that contacts the first resin material 21 form an airtight line R2 inside the room.

As a result, in the first airtight/heat insulating structure B1 of the present embodiment having the above configuration, even if deformation such as heat shrinkage occurs in the first resin material 21, when the pair of shojis 12 and 13 are closed, , the tip of the elastically deformable first airtight member 24 can be kept in close contact with the first resin member 21 at all times, and airtightness and heat insulation can be ensured.

In addition, in the first airtight/heat insulating structure B1 of the present embodiment, the elastically deformable first airtight member 24 is brought into contact with the first resin member 21 provided on the other meeting frame 10d to achieve airtightness and heat insulation. is ensured, the thickness of the first resin material 21 can also be reduced.

As a result, the thickness of the first resin material 21 (heat insulating layer) can be reduced while ensuring desired heat insulating properties, and the width of the meeting frame 10d in the prospective direction (depth direction) T3 can be reduced. can be done. Therefore, the appearance of the meeting frame 10d and the sash window A can be improved, and the cost can be reduced.

In addition, in the airtight/heat insulating structure B of the sash window A of the present embodiment, the second airtight/heat insulating structure B2 for ensuring airtightness and heat insulation between the upper frame 16 and the meeting frame 10d and the upper frame 10a. The second airtight/insulating structure B2 forms a second airtight line R3 with a second airtight material 27 abutting on the other meeting frame 10d and the upper frame 10a.

Furthermore, in the airtight/insulating structure B of the sash window A of the present embodiment, the second airtight line R3 formed by the second airtight material 27 and the first airtight line R2 formed by the first airtight material 24 are Since these two airtight lines R2 and R3 are formed by shifting the position in the prospective direction T3, airtightness and heat insulation can be effectively exhibited. Therefore, it is possible to further improve airtightness and heat insulation compared with conventional ones.

In addition, in the airtight/heat insulating structure B of the sash window A of the present embodiment, a third airtight/heat insulating structure for ensuring airtightness and heat insulation between the lower frame 17 and the meeting frame 10d and the lower frame 10b. B3, this third airtight/heat insulating structure B3 forms a third airtight line R4 by means of a third airtight material 31 abutting on the other meeting frame 10d and lower frame 10b in the same way as the second airtight/heat insulating structure B2. Form. As a result, the third airtight/heat insulating structure B3 can provide the same effect as the second airtight/heat insulating structure B2.

In addition, the third airtight material 31 is brought into contact with the meeting frame 10d and the lower frame 10b of the other shoji 13 to ensure airtightness and heat insulation. It is possible to keep the size of the projection direction T3 small. Therefore, the appearance can be further improved, and the cost can be reduced.

In addition, since the two airtight lines R2 and R4 are formed at different positions (the positions are shifted), airtightness and heat insulation can be exhibited individually for each of the airtight lines R2 and R4. Therefore, it is possible to further improve airtightness and heat insulation compared with conventional ones.

Furthermore, in the airtight/heat insulating structure B of the sash window A of the present embodiment, the fourth airtight/heat insulating structure B4 and the first airtight/heat insulating structure B1 are provided between the first airtight/heat insulating structure B1 and the third airtight/heat insulating structure B3. By interposing the fifth airtight/heat insulating structure B5 between the second airtight heat insulating structure B2 and the second airtight heat insulating structure B2, the airtight lines can be connected to ensure airtightness and heat insulation.

The fourth airtight member 32 of the fourth airtight/heat insulating structure B4 and the fifth airtight member 33 of the fifth airtight/heat insulating structure B5 are respectively arranged adjacent to the first airtight member 24 of the first airtight/heat insulating structure B1. Since the protruding portions 32a and 33a are provided (arranged in parallel), the seams of the first airtight member 24, the fourth airtight member 32, and the fifth airtight member 33 do not become air passages (air leakage). It is possible to further improve airtightness and heat insulation.

Further, by providing the fourth airtight member 32 of the fourth airtight/heat insulating structure B4 and the fifth airtight member 33 of the fifth airtight/heat insulating structure B5, the first airtight member 24 of the first airtight/heat insulating structure B1 is further adjacent to the first airtight member 24. By providing the protruding portions 32a and 33a, even if the first airtight member 24 or the like is thermally shrunk, airtightness and heat insulation can be ensured.

Further, the fourth airtight member 32 of the fourth airtight/heat insulating structure B4 and the fifth airtight member 33 of the fifth airtight/heat insulating structure B5 are provided, and the first airtight member 24 of the first airtight/heat insulating structure B1 is provided with Adjacent protruding portions 32a and 33a are provided to secure desired airtightness and heat insulation, making it possible to form the meeting frame 10d with a smaller width compared to the conventional art. .

Further, together with the first airtight material 24 of the first airtight/heat insulating structure B1, the fourth airtight material 32 of the fourth airtight/heat insulating structure B4 and the fifth airtight material 33 of the fifth airtight/heat insulating structure B5 form a heat insulating layer. When configured to contact the first resin material 21, in other words, the first resin material 21 is arranged in the viewing direction so as to contact not only the first airtight material 24 but also the fourth airtight material 32 and the fifth airtight material 33. By increasing the width, it becomes possible to further improve airtightness and heat insulation.

An embodiment of the airtight/insulating structure for a sash window according to the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the scope of the invention. .

For example, the fourth airtight/heat insulating structure B4 and the fifth airtight/heat insulating structure B5 may be composed of a plurality of members.
For example, as shown in FIGS. 10 and 11, the intermediate rail/intermediate wall portion 20 of the upper frame 16 (lower frame 17) is provided with a heat-insulating material that protrudes downward (upward) from the tip of the intermediate rail 20 in the projecting direction. A resin material 35 having excellent properties is attached, and further, the tip of the resin material 35 in the projecting direction, the upper end (lower end) of the first airtight member 24, and the upper frame 10a of one shoji 12 and the other shoji 13 are brought into close contact with each other. A fifth airtight/insulating structure B5 may be configured by providing a fifth airtight material (airtight piece/upper filling airtight material) 33 so as to fill the upper space surrounded by the upper member. It is needless to say that the fourth airtight/heat insulating structure B4 can be configured in the same manner as this upside down.

By filling and arranging the resin material 35 and the fifth airtight material 33 in the space portion in this way, it is possible to further improve airtightness and heat insulation. Also, by providing the fifth airtight member 33, as shown in FIG. 11, the first airtight line R2 and the second airtight line R3 (the third airtight line R4) can be connected.

Furthermore, by providing the resin material 35 and the fifth airtight material 33, a new airtight line is formed at a plurality of sites where the fifth airtight material 33 abuts, such as the abutting part between the resin material 35 and the fifth airtight material 33. be able to. Therefore, by providing a large fifth airtight member 33, it is possible to improve airtightness and heat insulation more reliably and effectively while keeping the size of the meeting frame 10d small.

Further, as shown in FIG. 10, it is conceivable that the first resin material 21 attached to the other shoji 13 is displaced due to construction error or the like, and the position of the airtight line (broken line) is changed. By providing the fifth airtight member 33 together with the first airtight member 24, the airtight line of this portion is prevented from being deviated, and highly reliable airtight performance and heat insulating performance can be exhibited.

Further, as shown in FIG. 12, upper rails (or lower rails: intermediate walls) 20 are provided to slidably support the upper portions (and lower end portions) of the shojis 12 and 13, respectively, and the frame 15 is provided. When the upper frame 16 (or lower frame 17) is configured, the airtight material 36 is attached to the upper frame 10a (or lower frame 10b) of each shoji 12, 13, and the top rail (or lower rail) 20 is attached to the tip. The parts may be crimped to form an airtight line.

In this embodiment, the first airtight material 24 is brought into close contact with the first resin material 21 of the other meeting frame 10d. It is also conceivable to abut on the Also in this case, as in the present embodiment, since the airtight line is displaced, the expected direction can be reduced.

1 stiles on one side 2 stiles on the other side 3 resin material 4 smoke return 5 drainer 10 sash
10a upper frame 10b lower frame 10c vertical frame 10d meeting frame 11 glass panel 12 one shoji 13 the other shoji 15 frame body 16 upper frame 17 lower frame 18 door roller 20 intermediate wall portion (intermediate rail, upper rail, lower rail)
21 first resin material (resin cover)
23 First engaging portion 24 First airtight member (side airtight member)
24a Engaging base end portion 24b Airtight/insulating main body portion 25 Resin cover 26 Second engaging portion 27 Second airtight member 27a Engaging base end portion 27b Airtight/insulating main body portion 30 Third engaging portion 31 Third airtight member ( lower airtight material)
31a Engaging base end portion 31b Airtight/insulating body portion 32 Fourth airtight member 32a Protruding portion 32b Fitting portion 33 Fifth airtight member 33a Protruding portion (airtight material adjacent portion)
33b Fitting portion 35 Resin material 36 Airtight material 100 Conventional sash window A Sash window B Airtight/heat insulating structure B1 First airtight/heat insulating structure B2 Second airtight/heat insulating structure B3 Third airtight/heat insulating structure B4 Fourth airtight/heat insulating structure Structure B5 Fifth airtight/insulating structure R1 Airtight line R2 First airtight line R3 Second airtight line R4 Third airtight line T1 Width direction T2 Vertical direction T3 Depth direction

Claims (2)

A plurality of shoji are supported by a frame attached to the outer periphery of an opening formed in a building, and at least one shoji is slidably supported by the frame and is capable of opening and closing the opening. An airtight/insulating structure for a sash window comprising:
The sash window is an aluminum resin composite sash,
The shoji includes a frame having an upper frame, a lower frame, a vertical frame, and a meeting frame, and a glass panel whose outer peripheral edge is held by the frame and forms a window surface,
When the shoji is closed, one meeting frame of one adjacent shoji and the other meeting frame of the other adjacent shoji overlap in the depth direction, and are attached to the faces of the one meeting frame facing each other. An airtight material, and a resin material attached to the surface of the other meeting frame and to which the airtight material is in close contact,
The resin material forms a heat insulating layer,
The airtight material is made of an elastic material, and has a convex arc-shaped cross-section on the side of the tip portion that is in close contact with the resin material,
A resin cover is attached so as to cover the side surface of the one meeting frame facing the interior of the room,
A plurality of hollow portions are formed along the direction of projection between the resin cover and the side surface facing the resin cover ,
a first airtight/insulating structure arranged in the vertical direction of the extending direction of the meeting frame in a state where the one meeting frame and the other meeting frame overlap;
a second airtight/insulating structure disposed between the upper frame of the frame body and the meeting stile and the upper stile;
a third airtight/insulating structure disposed between the lower frame of the frame body and the meeting stile and the lower stile;
a fourth airtight/insulating structure disposed between the first airtight/insulating structure and the third airtight/insulating structure;
a fifth airtight/insulating structure disposed between said first airtight/insulating structure and said second airtight/ insulating structure. In the airtight/insulating structure of a sash window according to claim 1,
The airtight/insulating structure of the sash window, wherein the airtight material is provided on the indoor side of the smoke return provided between the one meeting frame and the other meeting frame.

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