JP4701583B2 - High water tightness device (water barrier) with flat sash for outdoor bottom frame - 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. 17, a projecting rail is generally provided on the lower frame sash, and the door wheel attached to the lower arm of the shoji is rotated on the 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 of the lower frame, and in particular, 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. However, outdoor sashes are accompanied by wind pressure, so rainwater is more likely to enter, and it is necessary to ensure airtightness and drainage.
Moreover, it is necessary to provide a lower frame recess for drainage to ensure high drainage from the upper surface of the lower frame formed in a flat shape. It was necessary for rainwater to flow into the lower frame recess, drain from the drain opening provided in the lower frame recess, and prevent rainwater from entering the inner side of the outer shingles along the inner frame lower frame recess.
[0004]
[Problems to be solved by the invention]
The present invention provides a high watertight device according to the present invention in a sliding shoji that slides open and close on the lower frame surface of a sash composed of upper and lower frames 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 ability to prevent the intrusion of rainwater against winds accompanied by rain. 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.
[0006]
The first technical gist of the present invention is a sliding shoji that slides open and close the upper surface of an outdoor sash lower frame composed of an upper and lower frame and left and right vertical frames, the upper surface of the lower frame is formed in a substantially flat surface, The sliding frame slide piece is suspended from the lower armpit side wall of the shoji that opens and closes the flat surface through the door wheel, and the lower frame recess having a slide groove for guiding the shoji slide piece is provided in the lower frame. The shoji slide piece and the lower frame recess By forming a seal line (A), (B) only on the indoor side of the shoji slide piece in the opening and closing direction of the shoji with a lateral tight material interposed between the side walls, a gap for drainage on the outdoor side of the shoji slide piece A water barrier is attached to the lower side wall of the shoji slide opening / closing direction of the shoji sumo so that the seal line (C) is formed on the indoor side wall and the lower frame flat surface of the lower shoji, (B) Continuously it lies in having a (C).
[0007]
As a result, the upper surface of the lower frame has a flat surface in which only the two grooves corresponding to the thickness of the shoji slide piece of the shoji lower armor can be seen from the external appearance. As shown in FIG. A seal line (A) is formed with the side wall of the lower frame for the shoji through the lateral tight material, and a seal line (A with the side wall of the inner frame for the inner frame through the lateral tight material for the inner shingle is formed on the slide piece ( B) is formed.
Moreover, since the water barrier is attached to the lower side of the sliding door opening / closing direction of the shoji sliding door, that is, the prospective direction, the sealing lines (A), (B), (C) are continuous by forming the sealing line (C). Become.
[0008]
A flat surface drain is provided in the lower frame corresponding to the summing position when the outer and inner shoji are closed, and an elastic material is inserted near the flat surface drain port of the lower frame at the bottom of the inner frame. Install a water stop block that comes into contact with the seal, and the windshield barrier line (D) or the rain barrier seal line (E) on the flat surface of the lower frame across the inner side of the outer sliding door slide and the outer side of the inner sliding door slide Formed.
[0009]
Thus, as shown in FIG. 3, the elastic material of the sumo stop water block attached to the bottom part of the inner shoji summon block allows the seal line ( In addition to the formation of D) or (E), as shown in FIG.
The rainwater that has flowed vigorously with the wind pressure with the flat surface of the lower frame facing the summing part for the inner and outer shoji flows at the fin-like rain barrier (seal line E) made of an elastic material provided in the summon water block. In addition, the fin-shaped wind barrier (seal line D) made of an elastic material shields the bottom of the summon bowl and the flat surface of the lower frame, ensuring the airtightness of the summon section, and the rain It acts to promote the rainwater drainage and drainage to the flat surface drainage port provided between the barrier and the windbarrier.
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.
[0010]
Since there is no step such as a rail as in the past, the amount of water outside the lower summoning room for summoning sliding shojis is particularly large, so by adopting such a configuration, the rainwater that has flowed into the summoning section with wind pressure The water is stopped and drained by the summon water block, and the water barrier is attached to the indoor side, so that the seal line of the summoning part is a triple structure of (E), (D), (C) Therefore, it is possible to reliably prevent water leakage to the indoor side.
In addition, if both the seal line (D) and the seal line (E) by the summon stop water block are provided as described above, the waterproof property is further improved, but only one of the seal lines (D) and (E) may be provided. A sufficiently good waterproof property can be obtained.
[0011]
The lower frame flat surface between the inner shoji summons and the outer shoji summons forms the seal lines (C), (D), and (E) as described above at the summon stop water block and the water barrier. However, since the lower frame concave part for drainage for drainage is provided under the seal line for inner shingles, it is necessary to ensure the water stoppage of this part.
Therefore, on the seal line of the inner shoji, a lower frame concave water stop block was provided in the lower frame concave for the inner shroud almost corresponding to the position of the summing portion when the outer shoji and the inner shoji were closed.
[0012]
The lower frame recess water blocking block is formed of a sponge-like elastic body so as to close the lower frame recess shape, and when the inner shoji is closed, it slides into contact with the water barrier to ensure the airtightness of this portion.
Accordingly, the shape of the lower frame recess water stop block corresponds to the depth and width of the groove of the lower frame recess and is in sliding contact with the inner slide slide piece.
In addition, as described above, the structure is provided with a wide lower frame recess in the lower part of the two narrow grooves for sliding paper slides. Although it was easily exposed to splashing, the present invention can also prevent such splashing.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described below with reference to the drawings.
FIG. 16 shows an image of construction of an outdoor barrier-free sash incorporating a high watertight device according to the present invention, FIG. 18 shows an example of a floor plan of a reinforced concrete building, and FIGS. 19 and 20 show cross sections of the outdoor openings. 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]
A longitudinal sectional view of a lower frame sash portion of the sash structure according to the present invention is shown in FIG. 1, and a transverse sectional view thereof is shown in FIG. As shown in FIGS. 1 and 20, a frame is formed by a sash of a lower frame 10 and an upper frame 40 attached to the housing by anchors 8 and a left vertical frame 20 and a right vertical frame 30 as shown in FIG. In addition, the outer shoji 50 and the inner shoji 60 are attached to the inside from the outdoor side.
As shown in FIG. 20, the lower frame does not have a conventional protruding rail, and the upper surface of the lower frame is formed with two grooves corresponding to the thickness of the shoji slide piece of the shoji lower armature. It is a flat surface that does not interfere with walking, and there are no steps at the boundary between the veranda of the apartment and the indoor side, the flooring of the indoor floor, the upper surface of the lower frame, the floor of the balcony through the grating It has a barrier-free structure arranged almost horizontally.
[0015]
As shown in FIG. 1 and FIG. 2, the external shoji 50 forms a frame with the external shoji lower arm 51 and upper arm 55, the external shoji door torch 52 and the external shoji summon cage 53, and glass or the like is inside. It is installed.
On the indoor side of the shoji screen 51, the shoji slide piece 51a is suspended. Further, a shoji door wheel 54 is attached to the lower armpit recess 51b of the lower arm and moves on the substantially flat upper surface 11 of the lower frame 10.
[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 suspended from the inner side of the lower arm 61, and an inner door 64 is attached to the lower arm recess 61b of the lower arm and moves on a substantially flat upper surface 11 of the lower frame 10.
Here, as shown in FIG. 9 in an enlarged view, the seal line made of the transverse tight material is formed only on the indoor side of the shoji slide piece, and a gap K for drainage is formed on the outdoor side of the shoji slide piece. .
This gap K becomes wider as the shoji is pushed indoors by the wind pressure.
[0017]
A lower frame recess 12a for an external handicap having an external door slide piece 51a hanging on the lower arm of the external door and the internal door, an external door slide groove 11a on which the internal door slide piece 61a slides, and an internal door slide groove 11b. The inner frame side wall of the recess is provided with a lateral tight material fitting groove 13a for the inner shingle, and a lateral tight material fitting groove 13b for the inner child is provided, The lateral tight material 14b for shoji is arranged, and these lateral tight materials are in sliding contact with the shoji slide piece.
[0018]
The lower frame 10 is configured by fitting and combining frame members 10a, 10b, and 10c that are extruded using an aluminum alloy or the like. The frame member 10c is provided with a recess for attaching a screen door, but this recess is not necessarily required.
Thus, when the lower frame is divided and configured, notch processing of the lower frame flat surface, processing of the drain opening of the lower frame concave portion, attachment of the lower frame concave water blocking block, and the like are facilitated.
[0019]
As shown in FIG. 2, a left vertical frame recess 21 is provided inside the left vertical frame 20 so as to receive a door guard of a shoji screen, and the left vertical frame vertical tight material is fitted to the left vertical frame recess indoor side wall. A groove 22 is provided and a left vertical frame vertical tight member 23 is provided.
The right vertical frame recess 31 for receiving the doorpad of the inner shoji is provided on the inner side of the right vertical frame 30 as well as the case of the shoji, and the right vertical frame vertical tight material is provided on the indoor side wall of the right vertical frame recess. A fitting groove 32 is provided, and a right vertical frame vertical tight member 33 is provided.
As shown in FIG. 4, wind pressure and shoji are provided in the outer and inner shojis so that the seal line of the horizontal tight material and the slide piece and the seal line of the vertical tight material and the door rod are arranged continuously. Since it acts to stably and reliably seal against the installation adjustment of rainwater, it is possible to prevent rainwater and the like from entering the room.
In the present invention, the seal line of the transverse tight material may be formed so as to be substantially flush with the seal line of the longitudinal tight material, and the tight material may be attached to either the shoji side or the frame side. Adopted well selectively.
[0020]
In the summoning section, as shown in FIG. 2, 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 repellent 60 are closed. The summit rod tight material 66 is attached to the summit rod tight material fitting groove 63b provided at the inner shoji summoning 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]
In addition, as shown in FIG. 5, the flat frame drainage port 15, the left corner drainage port 16 a, the right corner drainage port 16 b, the outer frame lower frame recess drainage port 17 a, and the inner frame lower frame recess drainage port 17 b as shown in FIG. 5. And the lower frame outdoor drain port 18 is provided, (B) is a perspective view of a shoji summoning part, (A) and (C) are corner parts.
The position of the flat surface drain outlet is not limited to the summing part of the above-mentioned inner and outer shoji, but a plurality of flat bottom drain surfaces may be provided at equal intervals. Although it may be provided regardless of the position, rainwater tends to concentrate especially on the summoning part, and if a drain outlet is provided on this part, it will not be visible from the outside and the appearance will be good, so in this embodiment it is provided at this summoning part. It is a thing.
In addition, a reverse wind and reverse water blocking member 19 is pivotally attached to the outside of the lower frame outdoor drain port 18 so as to cover the drain port.
[0022]
As shown in FIGS. 7 and 8, a fin-like water barrier 90 (seal line C) made of an elastic material such as rubber is attached to the side wall in the sliding direction of the inner shoji summon through the water barrier attachment member 91. The fixing member 92 is attached. As shown in the side view of FIG. 9 and the front view of FIG. 10, the resin water barrier mounting member is provided with a long water barrier mounting hole 91a so that the slide can be adjusted in the vertical direction. The water barrier is moved up and down while touching the side wall of the shoji lower arm and adjusted so as to contact the substantially flat surface of the lower frame and the lower frame water blocking block, and then fixed by the water barrier locking member 92. . As shown in FIG. 6, a summon stop water block 70 is attached to the bottom of the inner shoji sump corresponding to the vicinity of the flat surface drainage port with a sump stop water blocking member 75 such as a screw. ing.召合The Kamachitomesui block 70召合Kamachitomesui block base member 73 fin-like rain barrier 71 made of an elastic material (seal line E) and fin-like window barrier 72 (seal line D) is provided al Re in It is arranged so as to abut on the upper surface of the lower frame and the side surface of the inner side of the outer frame. Rain flow with wind pressure is suppressed at the rain barrier, and air tightness is secured at the wind barrier, so that intrusion of air into the room is blocked and rain water is poured into the flat surface drainage port provided in the meantime . Here, the plan view of FIG. 11 has a triple structure of a rain barrier 71, a wind barrier 72, and a water barrier 91 so as to show the positional relationship between the water barrier and the summon water blocking block. The summon water stop block shown in FIG. 6 forms a part of the inner heel lower eyelid slide piece 61 a by a summing water stop water hanging piece 74 .
[0023]
As shown in FIGS. 12 and 13, the inner / outer children summoning portion of the inner frame lower frame concave portion is located on the seal line of the inner shoji and almost corresponds to the position of the inner / outer children summoning portion. The lower frame recess water blocking block 80 made of an elastic material is provided in the lower frame recess for the shoji so as to close the shape of the lower frame recess for the inner shoji, and rainwater flows into the inside of the outer shoji room along the lower frame recess of the inner shoji. (For the sake of clarity, FIG. 13 shows a state in which the water barrier is removed).
As shown in FIG. 12, the lower frame concave water stop block 80 has a water stop elastic body 81 fixed to a water stop block fixture 82, and this is fixed to a bottom of the lower frame concave part such as a screw. It was attached with a block locking member.
The positional relationship is shown in FIGS. 13 and 14, wherein (a) is a top view, (b) is a side view thereof, (c) is a front view, and (d) is a side view thereof.
As shown in (a) and (b), the water blocking block elastic body 81 of the lower frame recess water blocking block is inserted corresponding to the depth and width of the groove of the lower frame recess, and slides with the inner slide slide piece 61a. It touches.
Further, a bottom frame recess drainage port 17b is provided at the bottom of the bottom frame recess.
[0024]
The flat frame drainage port 15 of the lower frame communicates with the outside air via the lower frame recess drainage port 17a for the shoji screen and the lower frame outdoor drainage port 18.
Moreover, as shown in FIG. 11, the upper part of a flat surface drain outlet is the outer armor summon 53 and the inner armor summoning arm 63, the outer armor butt piece 53a, the inner armor butt piece 63a (smoke return part) provided in these. The space is formed by the summoned tight material 66.
[0025]
As shown in FIG. 15, the outdoor barrier-free sash incorporating the high watertight device according to the present invention moves the shoji upward along the rail of the upper frame unlike the so-called suspension type, and slides the shoji slide piece. It can be easily attached to the window frame by inserting it into the slide groove, and it can be easily removed in a short time by the reverse operation, so that maintenance is easy.
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.
[0026]
FIG. 16 showing an example in which an outdoor barrier-free sash incorporating a high water-tightness device according to the present invention is applied to an outdoor opening of a building is compared with FIG. 17 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 (see FIG. 21).
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 lower frame with conventional rails, you can also put your feet on the lower frame, and it will not interfere with walking, so even if you become older and your body weakens, you can go out on the veranda as well as indoors (Universal design)
[0027]
【The invention's effect】
In the present invention, the seal line (A) between the shoji made of the lateral tight material and the side wall of the lower frame recess is formed even if the rail of the protrusion provided on the conventional lower frame sash is eliminated to form a substantially flat surface. A continuous seal line can be formed by B) and the water barrier (seal line C).
In addition, by installing a water stop block at the bottom of the inner shoji summon, a double or triple seal line is formed at the summing position of the outer shoji and inner shoji to prevent water leakage into the room. it can.
[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.
FIG. 2 is a cross-sectional view of a high watertight sash structure with a flat bottom frame according to the present invention.
FIG. 3 shows a seal line.
FIG. 4 is a perspective view of a frame corner portion.
FIG. 5 shows a layout of drain outlets.
FIG. 6 is a perspective view of a flat surface drain port portion.
FIG. 7 is a partial perspective view of a summing unit.
FIG. 8 is a perspective view of a water barrier portion.
FIG. 9 shows a side view of the summing unit.
FIG. 10 is a front view of a summing unit.
FIG. 11 is a top view of the summoning unit (view of the summon water stoppage block).
FIG. 12 is a perspective view of a lower frame recess water stop block.
FIG. 13 shows an attached state (top view) of the lower frame recessed water blocking block.
FIG. 14 shows an attached state (side view) of the lower frame recess water blocking block.
FIG. 15 shows a method for detaching a shoji.
FIG. 16 shows a construction image diagram of an outdoor barrier-free sash incorporating a high watertight device according to the present invention.
FIG. 17 is a construction image view of the condominium veranda side and indoor side of a conventional sash.
FIG. 18 shows an example of a floor plan.
FIG. 19 is a longitudinal sectional view of an outdoor opening.
FIG. 20 is a longitudinal sectional view near the lower frame of the outdoor opening.
FIG. 21 shows an example of a living space to which an outdoor barrier-free sash high watertight device according to the present invention is applied.
[Explanation of symbols]
10 Lower frame 11 Flat surface (upper surface)
11a Extrinsic slide groove 11b Extrinsic slide groove 12a Retractor lower frame recess 12b Extrinsic lower frame recess 13a Exogenous lateral tight material fitting groove 13b Endoscope horizontal tight material fitting groove 14a Material 14b Horizontal tight material 15 for inner sward 15 Flat surface drain port 16a Left corner drain port 16b Right corner drain port 17a Lower frame recess drain port 17b Endoscope lower frame recess drain port 18 Lower frame outdoor drain port 19 Reverse water stop member 20 Left vertical frame 30 Right vertical frame 21 Left vertical frame recess 31 Right vertical frame recess 22 Left vertical frame vertical tight material fitting groove 32 Right vertical frame vertical tight material fitting groove 23 Left vertical frame vertical tight material 33 Right Vertical frame Vertical tight material 40 Upper frame 50 Electrum 60 Inner shoji 51 Eraser lower arm 61 Inner shoder lower arm 51a Ejector slide piece 61a Ejector slide piece 52 Summoning 63 63 Shoji Summon 53a Jiraiko Matching Piece 63a Shoji Matching Piece 54 Shoji Door 64 64 Neji Door 55 55 Shoji Shoji 65 Shoji Sho 66 66 Summoning Tight Material 70 Summon Block Water Block 71 Rain barrier (seal line E)
72 Wind barrier (seal line D)
73 Summon stop water block base member 74 Summon stop water block vertical piece 75 Summon stop water block locking member 80 Lower frame recess water stop block 81 Water stop block elastic body 82 Water stop block fixture 82 Water stop Block locking member 90 Water barrier (seal line C)
91 Water barrier mounting member 91a Water barrier mounting hole 92 Water barrier locking member

Claims (2)

A sliding shoji that slides open and close the upper surface of an outdoor sash lower frame composed of an upper and lower frame and left and right vertical frames. The shoji that forms the upper surface of the lower frame as a substantially flat surface and slides the flat surface through a door. The sliding frame slide piece is suspended from the lower side wall of the lower frame, a lower frame recess having a slide groove for guiding the sliding sheet slide piece is provided in the lower frame, and a lateral tight material is interposed between the sliding frame slide piece and the lower frame recess side wall. By forming the seal lines (A) and (B) only on the indoor side of the shoji slide piece in the opening and closing direction of the shoji, a drainage gap is provided on the outside of the shoji slide piece, so A water barrier is attached to the lower portion of the side wall in the opening and closing direction to form a seal line (C) on the indoor side wall and the lower frame flat surface of the shoji lower armpit, and the seal lines (A), (B), and (C) are continuously formed. Provided The flat surface drain port provided in the lower frame so as to correspond to the calling alignment when the outer sash and the inner sash is closed, via an elastic member in the vicinity of the flat surface drain port of the lower frame to the bottom of the inner sash召合stile Install a water stop block that comes into contact with the seal, and the windshield barrier line (D) or the rain barrier seal line (E) on the flat surface of the lower frame across the inner side of the outer sliding door slide and the outer side of the inner sliding door slide An outdoor lower frame flat sash high watertight device characterized by forming A sliding shoji that slides open and close the upper surface of an outdoor sash lower frame composed of an upper and lower frame and left and right vertical frames. The shoji that forms the upper surface of the lower frame as a substantially flat surface and slides the flat surface through a door. The sliding frame slide piece is suspended from the inner side wall of the lower arm of the lower arm, and a lower frame recess having a slide groove for guiding the sliding sheet slide piece is provided in the lower frame, and a horizontal tight material is interposed between the sliding frame slide piece and the lower frame recess side wall. Form a seal line (A), (B) in the sliding door opening / closing direction, and attach a water barrier to the bottom of the sliding door opening / closing direction of the shoji sliding door, and attach the water barrier to the indoor side wall and lower frame flat surface of the lower sliding door The seal line (C) is formed in the seal line (A), (B), (C) is continuously provided, and the wind barrier or rain barrier and the hanging piece are provided at the bottom of the shoji sumo Summon water stop Attach the click, 召合Kamachitomesui block drooping piece is continuous to the shoji sliding piece depending from bottom rail interior side wall, down over the inner sash slide piece exterior side and the outer sash slide piece indoor-side frame An outdoor lower frame flat sash high water-tightness device characterized in that a seal line (D) by a wind barrier or a seal line (E) by a rain barrier is formed on a flat surface.

Images