JP4483092B2 - High watertight device for outdoor underframe flat sash - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sash structure in which a shoji slide opens and closes inside a window frame attached to an outdoor opening of a building, and in particular, a high watertightness against rainwater or the like with wind pressure in a barrier-free sash in which a lower frame upper surface is formed in a substantially flat surface. Relates to the device.
[0002]
[Prior art]
The outdoor opening of a building is generally provided with a window structure in which a frame is constituted by an upper and lower frame and left and right vertical frames, and a shoji slide is opened and closed inside.
In this case, conventionally, as shown in FIG. 35, a projecting rail is generally provided on the lower frame sash, and a door wheel attached to the lower arm of the shoji is rotated on this rail. .
In addition, a step is provided on the outdoor outdoor streak rail and the indoor side streak rail of the outdoor opening of the building so that the indoor side is higher, or a step is provided on the outdoor and indoor sides of the rail groove. To prevent the entry of wind and rain.
More specifically, rainwater sprayed on window glass, etc., falls along the shoji and collects in the rail groove on the lower frame. Especially, the summing part of the shoji and inner shoji, the shoji door-tower and the vertical frame sash The wall of the rail groove prevents the entry to the indoor side, and flows out to the outdoors by the weight of the accumulated rainwater.
[0003]
However, if a barrier-free sash structure with the upper surface of the lower frame sash formed flat is used, there is no rail groove wall, and a large amount of rainwater that falls along the shoji screen during heavy rain with wind pressure etc. There was a technical problem that rainwater infiltrates along the flow of air and the watertightness becomes a problem unless it is easy to collect on the upper surface of the lower frame sash and ensure airtightness.
In particular, the amount of water collected on the outdoor side of the lower part of the sliding shoji summons is more than before, and the summoning part has a complicated airtight and watertight structure between the inner and outer shojis. In the case of outdoor sashes, it is necessary to improve the drainage as well as the airtightness because rainwater is more easily penetrated due to wind pressure.
In addition, when it becomes a middle- and high-rise building, it receives wind pressure close to 500 Pa, and in order to prevent rainwater from entering the room, an airtight line is secured between the shoji and the window frame sash, and the upper surface of the lower frame that forms the airtight line It is necessary to provide a drainage recess in order to ensure high drainage from the rainwater. In this case, it is also necessary to prevent rainwater flowing along the inner frame lower frame recess from entering the inner side of the outer door.
[0004]
[Problems to be solved by the invention]
The present invention relates to a sliding shoji that slides open and close on the lower frame surface of a sash composed of an upper and lower frame and left and right vertical frames attached to an outdoor opening of a building. As shown in the image of the construction of the built-in outdoor barrier-free sash, the barrier-free type with the flat top surface of the sash lower frame is highly airtight and watertight, has excellent drainage of rainwater, etc. An outdoor lower frame flat sash with a high water-tightness is provided that is highly waterproof against indoor water leakage.
[0005]
[Means for Solving the Problems]
Watertightness in outdoor sashes refers to the performance that indicates how much wind pressure can be prevented from entering against rainy winds. JIS is equipped with a sash as its test method, and 4 per minute. Spraying water of 1 liter / square meter, applying a predetermined pulsation pressure for 10 minutes, during that time, there is no water leakage from the sash to the indoor side, and in test category 50, the median wind pressure is 500 Pa, the upper limit wind pressure Is very strict with 750 Pa, for example, just spraying 10 liters of water per minute with a shower nozzle on the bathroom door in the watertightness of the bathroom at a distance of 30 cm and a speed of 7 cm / sec. Unlike the test conditions, flattening the bottom frame of an outdoor sash has been considered very difficult.
Therefore, the present invention has been achieved by conducting sincerity research while repeating the watertight test this time.
[0006]
The invention described in claim 1 is composed of an upper and lower frame and left and right vertical frames, the upper surface of the lower frame is formed into a substantially flat surface, and the sash structure is formed of a shoji that slides open and close via a door wheel. An indoor rising piece, an outdoor rising piece, and an intermediate rising piece located between the indoor rising piece and the outdoor rising piece are provided on the upper part of the lower frame base member having a cross-sectional shape. the inner sash for the lower frame recess and the inner sash slide groove formed at the sliding top member and the intermediate rising piece, the lower frame concavity and the outer for the outer sash at the outdoor side rising piece and the outer sash sliding top member and the intermediate rising piece A shoji slide groove is formed, and inside the bottom of the lower frame recess for the shingles, a recess drainage port for the shingles is arranged, and the inside and outside of the shoji slide are placed on the inner and outer slide slide pieces. A seal surface is formed between the inner frame and the lower frame recess side wall for the shoji through the lateral tight material, and the vertical frame is provided with a vertical frame engaging portion that receives the door sliding door of the shoji when the shoji is closed. A vertical tight material is disposed between the engagement portion and the door torch when closed to form a sealing surface so that the sealing surface of the horizontal tight material and the sealing surface of the vertical tight material are substantially the same surface. Formed.
[0007]
[0008]
As a result, it is formed so that the seal surface of the horizontal tight material and the seal surface of the vertical tight material are almost flush with the wind and rainwater blown from the outside. Since it acts to seal stably and reliably, it can prevent the intrusion of rainwater, etc. into the indoor space, and the bottom frame for drainage can be used as a pocket for rainwater to flow almost directly under the airtight line formed of horizontal tight material. Provided, and further provided with a hollow portion for drainage, rainwater accumulates in this portion, so that the pressure difference between the outside of the room and the room can be countered. At this time, in order to enhance drainage, the slide groove is set to be narrower with respect to the indoor / outdoor width of the lower frame recess, and the flat surface of the upper part of the lower frame is widened to achieve barrier-free.
Further, the indoor-side rising piece on top of the lower frame base member, and the outdoor-side rising piece, and an intermediate rising piece located on the indoor side rising piece and the outdoor-side rising pieces provided for the outer sash sliding Ru another member der from top member or the inner sash sliding top member, among, sill recess and inner for the outer sash, since to form the outer sliding door sliding groove, Ri readily Na machining such as drainage ports, for external shoji sliding By removing the upper surface member or the upper surface member for sliding inner slide, it becomes easy to clean the respective lower frame recesses.
At this time, it is desirable to adopt a Kendon-type shoji attachment method in order to facilitate the removal and installation of the shoji and to ensure maintainability of the sash frame such as the shoji and the lower frame.
[0009]
The invention of claim 2, wherein, in addition to the configuration of the invention according to claim 1, the flat surface drain port provided in the lower frame so as to correspond to the calling alignment of the outer sash and the inner sash, the inner or outer sash召合stile The summon water stop block was attached to the side of the rubber, and the elastic material provided on the summon stop water block was brought into sliding contact with the flat surface of the lower frame.
[0010]
As a result, the rainwater that has flowed vigorously along with the wind pressure with the flat surface of the lower frame facing the summing part for the inner and outer shoji, has a momentum of flow at the fin-shaped water barrier made of an elastic material provided in this summing water stop block. In addition, the fin-shaped wind barrier made of an elastic material shields the side of the summon bowl and the flat surface of the lower frame, ensuring the airtightness of the summon section, and between the water barrier and the wind barrier. It acts so that the rainwater falls to the flat surface drain port provided in the, and drainage is promoted.
At this time, the flat surface drainage port of the lower frame communicates with the outside air through the lower frame recess drainage port and the lower frame outdoor drainage port.
In addition, the upper part of the flat surface drainage port is in communication with the external shoji summon and the inner shoji summon, the butt piece (smoke return part) provided on these, and the space formed by the summit soot tight material. desirable.
[0011]
The invention according to claim 3 is different from the invention according to claim 2 in that the summon water stop block is provided on the inner side or the side part of the shoji summon block. The effect is almost the same with the one provided at the drain.
[0012]
[0013]
DETAILED DESCRIPTION OF THE INVENTION
A case where the preferred embodiment of the present invention is applied to a sliding shoji sash structure will be described below as an example.
FIG. 34 shows an image of construction of an outdoor barrier-free sash incorporating a high watertight device according to the present invention, FIG. 36 shows an example of a floor plan of a reinforced concrete building, and FIGS. 37 and 38 show cross sections of the outdoor opening. Show.
A drainage grating is attached to the outside of the window of the building house, a step adjustment block is laid outside the balcony, and a safety fence such as a handrail is attached to the outside.
The sash structure which consists of the highly watertight structure which concerns on this invention is employ | adopted at the entrance / exit to the balcony from the room.
[0014]
FIG. 1 is a longitudinal sectional view of a lower frame sash portion of the sash structure according to the present invention, and FIG. 3 is a transverse sectional view thereof. As shown in FIG. 1, FIG. 6 and FIG. 38, the lower frame 10 and the upper frame 40 are attached to the housing by the anchor 8, and the left vertical frame 20 and the right vertical frame 30 are sashed as shown in FIG. A body is formed, and a shoji 50 and a shoji 60 are attached to the inside from the outdoor side.
As shown in FIG. 38, the lower frame does not have a conventional protruding rail, and a flat surface in which two grooves corresponding to the thickness of the shoji slide piece of the shoji lower arm are formed on the upper surface of the lower frame. It has a barrier-free structure in which there is no step at the boundary between the veranda of the apartment and the indoor side, and the flooring of the indoor floor, the upper surface of the lower frame, and the floor of the balcony are arranged almost horizontally through the grating. ing.
[0015]
As shown in FIGS. 1, 5 and 3, the external shoji 50 forms a frame with the external shoji lower arm 51 and the upper arm 55, the outer shoji door toe 52 and the outer shoji summon 53, and on the inside Glass is installed.
A sliding door slide piece 51a is hung down on the indoor side of the sliding door lower arm 51, and a sliding door door 54 is attached to the lower armpit recess 51b of the lower arm. To move.
[0016]
Similarly to the outer shoji, the inner shoji 60 forms a frame with the inner shoji lower arm 61 and upper upper arm 65, the inner shoji door torch 62 and the inner shoji summon cage 63, and glass or the like is attached to the inside. .
A slide piece 61a is hung down on the outdoor side of the lower arm 61, and a lateral tight material fitting groove 13b is provided on the side wall, and a lateral tight material 14b is disposed on the side wall. The material is in sliding contact with the side wall of the lower frame recess.
An inner shovel 64 is attached to the lower heel recess 61 b of the lower heel and moves on the substantially flat upper surface 11 of the lower frame 10.
[0017]
A plurality of rising pieces on top of the lower frame base member formed of a hollow cross-sectional shape in the lower frame 10, an intermediate rising piece 103 and the outdoor side rising piece 104, the lower frame for the outer sash at the outer shoji sliding top member 107 recess 12a and the outer sliding door slide piece 51a forms an outer sliding door sliding grooves 11a which sliding indoor rising piece 102 and the intermediate rising piece 103 and the inner sash sliding top inner sash for the lower frame concavity 12b and inner at member 106 The inner slide slide groove 11b through which the slide sliding piece 61a slides was formed.
Here, the upper surface member 107 for sliding paper slides and the upper surface member 106 for inner sliding doors need not be integrally formed, and may be divided into a plurality of members although not shown.
[0018]
Further, the lower frame 10 is not limited to the above structure as long as the lower frame recess and the shoji slide groove can be formed. As shown in FIG. 2, the upper surface member 108 is replaced with the rising pieces 102 and 104 of the lower frame base member 100. The rising piece 108a may be provided on the upper surface member side. Also in this case, the lower frame recess side wall with which the lateral tight material is slidably contacted may be provided on the upper surface member side as shown in FIG. 2, and although not shown, the rising piece 108b of the upper surface member is shortened so that the lower frame base member The transverse tight material may be brought into sliding contact with the rising piece.
[0019]
As shown in FIG. 3, a left vertical frame engaging portion 21 that receives a door rod of a shoji screen is provided inside the left vertical frame 20, and the left vertical frame vertical tightness is provided on the left side vertical frame engaging portion on the indoor side wall. A material fitting groove 22 is provided, and a left vertical frame vertical tight material 23 is provided.
A right vertical frame engaging portion 31 that receives a door torch of a pouch is provided inside the right vertical frame 30 and is disposed in a right vertical frame vertical tight material fitting groove 32 provided on the pouch door toe. The vertical frame vertical tight material 33 contacts when the shoji is closed.
As shown in FIG. 4 and FIG. 5, the lateral tight material seal surface and the vertical tight material seal surface are arranged to be substantially the same in each of the outer and inner shojis.
[0020]
In the summoning section, as shown in FIG. 3, the repellent butt piece 53 a and the pouch butt piece 63 a provided on the repellent summon 53 of the rehabilitator 50 and the reciprocal summoner 63 of the inner recliner 60 are closed. The summit rod tight material 67 is attached to the summit rod tight material fitting groove 63b provided in the inner collimator summing portion and is in sliding contact with the side surface of the outer shoji.
It should be noted that the summoned tight material may be provided on the side of the shoji as long as airtightness and watertightness are ensured.
[0021]
Further, as shown in FIG. 23, the lower frame is provided with a flat surface drain port 15, a lower frame recess drain port 17a for a shoji, a lower frame recess drain port 17b for a shingles, and a lower frame outdoor drain port 18 ( (B) is a perspective view of a shoji summoning section, and (b) and (c) are corner parts.
Here, the flat surface drainage port provided on the upper surface of the lower frame does not necessarily have to be the summing position for the shoji and the inner shoji, but this summing position where rainwater tends to accumulate is desirable.
In addition, a reverse wind and reverse water stopper member 19 is pivotally attached to the outside of the lower frame outdoor drain port 18 so as to cover the drain port.
Moreover, as shown in FIG. 3, you may cut out the corner part of a flat surface of a lower frame as needed, and may provide the left corner part drain port 16a and the right corner part drain port 16b.
[0022]
As shown in FIGS. 6 and 7, a summon stop water block 70 is provided at a side portion of the shoji sumo stop corresponding to the flat surface drain port by a summit stop water block locking member 73 such as a screw. It is attached.
召合Kamachitomesui blocks the sliding contact with the fin-like water barrier 71 and fin-like window barrier 72 is set vignetting lower frame top have and outer shoji interior side surface made of an elastic material as shown in FIG. 9 It is arranged.
FIG. 11 is a top view (bottom view), FIG. 12 is a front view (outside view), and FIG. 10 is a side view. The flow of rainwater with wind pressure is suppressed in the water barrier, and airtightness is secured in the wind barrier, so that the intrusion of air into the room is blocked, and rainwater flows into the flat surface drainage port provided in the meantime .
Here, the flat surface drainage port 15 of the lower frame communicates with the outside air via the lower frame recess drainage port 17a for the shoji and the lower frame outdoor drainage port 18.
Further, as shown in FIG. 3 , the upper part of the flat surface drainage port is a repellent summit 53 and a recliner summoner 63 and a repellent butt piece 53a, a recliner butt piece 63a (smoke return part) provided on them. , Communicated with the space formed by the summoned tight material 67.
The summon water stop block may be provided on the lower frame side as shown in FIG. 13, and a side view is shown in FIG. 14, a top view is shown in FIG. 15, and a front view is shown in FIG. In this case, the water barrier and the wind barrier are in slidable contact with the side wall on the outside of the shoji summon and the side wall on the outside of the shoji summon.
[0023]
A bottom frame recess water blocking block is provided in the inner frame / outer frame summing portion of the inner frame lower frame recess to prevent rainwater from flowing into the room along the inner frame lower frame recess. The side view is shown in FIGS. 1 and 20, the top view is shown in FIG. 18, the lower frame recess internal inclination is shown in FIG. 19, and the front view is shown in FIG.
Thereby, the sealing surface by the water barrier of the sumoscope horizontal waterproof material and the sealing surface by the water barrier of the sumo water blocking block are connected by the inner frame lower frame recess water blocking block.
[0024]
As shown in FIG. 23, the outdoor barrier-free sash incorporating the high watertight device according to the present invention can be easily obtained by moving the shoji upward along the rail of the upper frame and inserting the slide piece of the shoji into the slide groove. Maintenance is easy because it can be attached to the window frame and can be easily removed in a short time by the reverse operation.
Also, when cleaning, the shoji is easy to remove and the structure is not complicated, so the quality is stable and there are few failures.
[0025]
In the present invention, the shape of the substantially flat surface of the lower frame sash is the shape shown in FIGS. 25 to 27 in addition to that shown in FIG. 1, and the accumulation of dust and the like is discharged while maintaining the barrier-free function. From the experimental results, the dimensions A1 and A2 are within about 10 mm when the door rotation part is convex ( FIG. 25 ), and the dimensions B1 and B2 are similarly when the door rotation part is concave ( FIG. 26 ) . Within about 10 mm, as shown in FIG. 27 , the slide groove width dimension is such that C1, C2,... Are within about 10 mm.
[0026]
In the present invention, the sealing surface of the transverse tight material may be formed so as to be substantially the same as the sealing surface of the longitudinal tight material, and the arrangement position of the tight material is selected as shown below. Adopted.
FIG. 28 shows a longitudinal sectional view when the transverse tight material and the longitudinal tight material are disposed with the inner tighter transverse tight material fitting groove and the longitudinal tight material fitting groove provided on the frame side, and FIG. 29 shows the transverse sectional view. FIG. 31 is a longitudinal sectional view showing a state in which a horizontal tight material is disposed on the lower slide piece of the shoji and a vertical tight material is disposed on the door toe, and FIG. 31 is a transverse sectional view.
Further, the lower frame base hollow portion may be formed integrally with the slide upper member as shown in FIG.
[0027]
FIG. 34 showing an example in which an outdoor barrier-free sash incorporating a high water-tight device according to the present invention is applied to an outdoor opening of a building is compared with FIG. 35 of the conventional example, and as shown in FIG. Since the upper surface of the substrate can be formed flat, the following can be said.
The rail disappears from the conventional sash, there are no obstacles, and it becomes a refreshing window frame structure that does not have the image of the conventional aluminum sash at all.
There is no step at the border between the veranda and the indoor side of an apartment, etc., and the floor of the indoor space and the veranda space is connected in a flat state, and it can be expected that the living space will be renewed.
Unlike the aluminum sash bottom frame with conventional rails, it is less likely to get dust, so it feels clean.
Even if you become older and your body becomes weaker, you can go out to the veranda as you would in a room (universal design).
[0028]
【The invention's effect】
In the high watertight device of the present invention, the sealing surface of the horizontal tight material and the sealing surface of the vertical tight material are configured to be substantially the same surface, so that the wind pressure is applied to the shoji or the pressure difference between the outdoor and indoors. Even in the case of occurrence, airtight and watertightness is ensured because the vertical and horizontal tight material supports the side of the shoji in a flush manner.
The water barrier of the summon water block that is attached to the side of the shoji sumo gate corresponding to the position of the flat surface drainage, especially in the summon part of the shoji shoji where the rainwater tends to collect The flow is weakened by, rainwater falls to the flat surface drain and drains to the outside, and the wind barrier can prevent the intrusion of water completely by suppressing the intrusion of the wind into the room.
An indoor side rising piece on top of the lower frame base member, and the outdoor-side rising piece, the indoor-side rising piece and the intermediate rising piece positioned at the outside side rising pieces formed, another member der Ru outer shoji sliding top member or at an inner shoji sliding top member, among the outer sash for the lower frame recess and an inner, since to form the outer sliding door sliding groove, Ri readily Na machining such as drainage ports, external shoji sliding top member Alternatively , by removing the top member for sliding the inner impeller , cleaning of the respective lower frame recesses is facilitated.
In addition, the provision of the lower frame recess upper water block for the inner frame can prevent rainwater from entering the inner side of the outer frame from the lower frame recess for the inner frame when the upper surface of the lower frame is formed flat.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a high watertight sash structure having a flat bottom frame according to the present invention.
It shows the longitudinal sectional view of another example of a high watertight sash structure of the lower frame flat according to the present invention; FIG.
FIG. 3 is a cross-sectional view of a high watertight sash structure with a flat bottom frame according to the present invention.
FIG. 4 is a partial perspective view showing a state in which a horizontal tight material and a vertical tight material are attached to a frame.
FIG. 5 is a partial inclination view showing a state in which a horizontal tight material and a vertical tight material are attached to a shoji.
FIG. 6 is a side view showing a state in which a summon water blocking block is attached.
FIG. 7 is a cross-sectional view showing a state in which a summon water blocking block is attached.
FIG. 8 shows a lower frame flat surface drain.
FIG. 9 is a perspective view of a summon water stop block.
FIG. 10 is a side view of the summing unit (lower frame flat surface drain port cross-sectional end view).
FIG. 11 is a top view of the summoning unit (view of the summon water stoppage block).
FIG. 12 is a front view of a summing unit (appearance diagram of a summon water stop block).
FIG. 13 is a perspective view showing a state in which a summon water blocking block is attached to the lower frame.
FIG. 14 is a side view showing a state in which a summon water blocking block is attached to the lower frame.
FIG. 15 is a top view showing a state in which the summon water stop block is attached to the lower frame.
FIG. 16 is a front view showing a state in which a summon water blocking block is attached to the lower frame.
FIG. 17 is a side view showing a state in which the inner frame is attached to the lower frame recess water stop block.
FIG. 18 is a top view showing a state in which the inner frame is attached to the inner frame lower frame concave water stop block.
FIG. 19 is a perspective view showing a state in which the inner frame is attached to the lower frame concave water stop block.
FIG. 20 shows a side view of the inner frame lower frame recess water stop block and attachment part.
FIG. 21 shows a top view of the inner frame lower frame recess water stop block and attachment part.
FIG. 22 shows a front view of the inner frame lower frame recess water stop block and attachment part.
FIG. 23 shows a layout of drain outlets.
FIG. 24 shows a method for detaching a shoji.
FIG. 25 shows another example of a cross section of a lower frame having a flat upper surface.
FIG. 26 shows another example of the cross section of the lower frame in which the upper surface is formed flat.
FIG. 27 shows another example of a cross section of a lower frame having a flat upper surface.
FIG. 28 is a longitudinal cross-sectional view in the case where the inner pouch horizontal tight material is disposed in the lower frame recess.
FIG. 29 shows a cross-sectional view of the case where the inner impeller vertical tight material is attached to the vertical frame.
FIG. 30 is a longitudinal cross-sectional view in the case where an external shoji lateral tight material is disposed on one side of the shoji slide.
FIG. 31 is a longitudinal cross-sectional view of a case in which a vertical shoji vertical tight material is disposed on the door toe side.
FIG. 32 is a longitudinal sectional view when the lower frame base hollow portion is integrally provided.
33 shows a cross-sectional view corresponding to FIG. 31. FIG.
FIG. 34 is a construction image diagram of an outdoor barrier-free sash incorporating a high watertight device according to the present invention.
FIG. 35 shows a construction image view of the condominium veranda side and indoor side of a conventional sash.
FIG. 36 shows an example of a floor plan.
FIG. 37 is a longitudinal sectional view of an outdoor opening.
FIG. 38 is a longitudinal sectional view near the lower frame of the outdoor opening.
[Explanation of symbols]
10 Lower frame 11 Flat surface (upper surface)
11a Endo-slider slide groove 11b Endo-slider slide groove 12a Lower frame concavity for 12-fold inner shroud Lower frame concavity 14a Side tight material for outer-edge child 14b Lateral tight material for inner-slider 15 Flat surface drain 16a Left corner drain 16b Right corner part drainage port 17a Lower frame recess drainage port for shingles 17b Lower frame recess drainage port for inner shingles 18 Lower frame outdoor drainage port 100 Lower frame base member
102 Indoor side rising piece
103 Middle rising piece
104 Outdoor rising piece 106 Upper member for sliding inner slide 107 Upper member for sliding outer slide 20 Left vertical frame 30 Right vertical frame 21 Left vertical frame engaging portion 31 Right vertical frame engaging portion 23 Left vertical frame vertical tight material 33 Right Vertical frame Vertical tight material 40 Upper frame 50 Eijiko 60 Nekoji 53 Eikosho summon 63 Nekoji summon 66 Inner shoji lower tight material 67 Summon tight material 70 Summon water stop block

Claims (3)

A lower frame base member composed of a vertical frame and left and right vertical frames, with a sash structure consisting of a shoji that slides open and close through a door wheel, with the upper surface of the lower frame formed into a substantially flat surface. An indoor rising piece, an outdoor rising piece, and an intermediate rising piece located between the indoor rising piece and the outdoor rising piece are provided at the upper part of the indoor side rising piece, the upper member for the slide and the intermediate rising piece. The inner frame lower frame recess and the inner slide slide groove are formed, and the outdoor rising piece, the upper member for the outer slide slide, and the intermediate rising piece are used to form the lower frame recess and the outer slide slide groove, Inside, the bottom of the bottom frame recess for the shingles is provided with a drain outlet for the inside and outside of the shingles. A seal surface is formed by the inner frame and the lower frame recess side wall for the external shoji, and the vertical frame is provided with a vertical frame engaging portion that receives the door sliding door of the shoji when the shoji is closed. A vertical tight material is disposed so as to be in contact with each other at the time of closing, and a sealing surface is formed, and the sealing surface of the horizontal tight material and the sealing surface of the vertical tight material are formed to be substantially the same surface. High watertight device with flat sash for outdoor bottom frame. Corresponding to the summing position of inner and outer shoji, a flat surface drainage opening is provided in the lower frame, and a summing water stop block is attached to the side of the inner or outer shoji summon. 2. A high watertight device for an outdoor lower frame flat sash according to claim 1, wherein the elastic material provided on the outer frame is brought into sliding contact with the flat surface of the lower frame. A flat surface drainage opening is provided in the lower frame corresponding to the summing position of the outer and inner shoji, and a summing water stop block is attached to the flat surface drainage opening, and the elastic material provided on the summing stop water block The high-watertight device for an outdoor lower frame flat sash according to claim 1, wherein the frame is slidably brought into contact with the sides of the inner and outer shoji summons.

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