JP5001916B2 - sash - Google Patents

Description

  The present invention relates to a sash in which at least three movable shojis are housed in a frame body, and more particularly to a sash in which movable shojis are housed in a frame body in a staggered manner.

Conventionally, a sash having a plurality of movable shojis in a frame is known. In particular, when three or more movable shojis are housed in the frame, the open / close range of each movable shoji differs depending on how the movable shojis are arranged. In the conventional sash, in the case of a four-drawer sash, the two movable shojis on the vertical frame side are arranged on the outdoor side, the two middle movable shojis are arranged on the indoor side, and the two movable shojis in the center are It was made to be in the closed state by the contact between the outer peripheral surfaces of the vertical hooks. An example of such a sash is disclosed in Patent Document 1.
Japanese Patent Laid-Open No. 7-145692

  Since the conventional sash has two shojis with which the outer peripheral surfaces of the vertical spades abut, the two vertical spats are arranged side by side when viewed from the indoor side when the movable shovel is closed. In recent years, it has been required to make the shoji folds appear as thin as possible in the sash, and conventional sashes in which two vertical folds are arranged side by side have not been able to meet this need.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a sash in which movable shojis can be arranged without juxtaposition when three or more movable shojis are provided. To do.

In order to solve the above-mentioned problem, the sash according to the present invention is a sash comprising at least three movable shojis in a frame formed by framing an upper and lower frame and a left and right vertical frame.
The lower frame has an inner rail and an outer rail along the longitudinal direction on the upper surface, and a first movable shoji adjacent to the one vertical frame is guided by the outer rail, and a second adjacent to the first movable shoji. A movable shoji is guided by the inner rail, a third movable shoji adjacent to the second movable shoji is guided by the outer rail,
The first movable shoji has a first summing bowl that faces the second movable shoji in the indoor and outdoor directions, and the second movable shoji has a second summing bowl that faces the first summing bowl, and A third movable shoji that opposes the third movable shoji in the indoor / outdoor direction, the third movable shoji has a fourth summit soop facing the third summon
The second summon bowl and the third summit bowl have a smoke return portion on the outdoor side opposite to the direction in which the second movable shoji moves toward the first movable shoji, and the first summit bowl. And the fourth summon bowl have smoke return portions on the interior side that mesh with the smoke return portions of the second and third summon bowls with the respective shojis closed. The smoke return portion is configured such that the outdoor end portion is formed closer to the outdoor side than the outdoor end portion of the smoke return portion of the second sumo bowl.

  Further, in the sash according to the present invention, the smoke return portion of the third summon bowl is formed at the inner peripheral end portion of the outdoor side surface, the contact surface portion extending toward the outdoor side, and the outdoor end portion of the corresponding contact surface portion And a contact portion that extends toward the outer periphery of the third summing rod, and the contact surface portion is an outer peripheral surface of the first summing rod that constitutes the first movable shoji when the second movable shoji is fully opened. It is characterized by contacting.

  Furthermore, in the sash according to the present invention, the contact surface portion constituting the smoke returning portion of the third summon bowl is in the state where the meshing portion is engaged with the smoke returning portion of the fourth summon bowl. It is characterized by being substantially flush with the outer peripheral surface of the fourth sumo bowl facing the sumo bowl.

  Furthermore, in the sash according to the present invention, the smoke return portion of the third summon bowl is formed on the outer peripheral side of the second movable shoji with respect to the inner peripheral end of the outdoor side surface, The side surface is configured such that the outer peripheral side of the third movable shoji is formed closer to the outdoor side than the smoke return portion.

  The sash according to the present invention is configured such that the frame body houses a fourth movable obstacle adjacent to the third movable obstacle, and the fourth movable obstacle is guided by the inner rail. .

  According to the sash according to the present invention, the first movable shoji adjacent to one vertical frame is guided by the outer rail, the second movable shoji adjacent to the first movable shoji is guided by the inner rail, and the second movable shoji is The adjoining third movable shoji is guided by the outer rail, and the second and third summoning fences have a smoke return section that opens on the opposite side to the direction in which the second movable shoji moves to the first movable shoji. The 1st and 4th summons are on the side, and the smoke return part that meshes with the smoke return parts of the 2nd and 3rd summons with each shoji screen closed The third summon smoke return section is formed with the outdoor end closer to the outdoor end than the second end smoke smoke return section. Because it is adjacent by facing each other, it can make the wrinkles appear thinner than when the vertical sputs are faced to the left and right, improving the design It is possible. Further, the second movable shoji can be moved to the first movable shoji side by the configuration of the smoke return portion, and the movable pattern of the movable shoji can be diversified.

  Further, according to the sash according to the present invention, the smoke return portion of the third summon bowl is formed at the inner peripheral end portion of the outdoor side surface, the contact surface portion extending toward the outdoor side, and the outdoor end portion of the contact surface portion And a contact surface portion that contacts the outer peripheral surface of the first summing rod constituting the first movable shoji in the fully open state of the second movable shoji. Thus, the movement range of the second movable shoji can be reliably regulated by the smoke return portion.

  Further, according to the sash according to the present invention, the abutting surface portion constituting the smoke returning portion of the third summon bowl is in the state where the meshing portion is engaged with the smoke returning portion of the fourth summon bowl. By being substantially flush with the outer peripheral surface of the fourth summoning bowl facing the salmon, the outer surface of the fourth summoning salmon is substantially flush with the outer peripheral surface of the fourth summoning salmon. It is possible to improve the design.

  Furthermore, according to the sash according to the present invention, the smoke return portion of the third summoning bowl is formed on the outer peripheral side of the second movable shoji rather than the inner peripheral edge of the outdoor side surface, The outer peripheral side of the third movable shoji is formed closer to the outdoor side than the smoke return section, so that when the second movable shoji is moved to the first movable shoji side, the smoke return section of the third summon bowl is the first movable Since it can be made not to contact the shoji, the second movable shoji can be moved closer to the vertical frame, and the opening formed by opening the second movable shoji can be enlarged.

  And according to the sash which concerns on this invention, the 4th movable shoji which adjoins a 3rd movable shoji is stored in a frame, and a 4th movable shoji is guided by an inner rail, and vertical scissors are not faced | matched In this way, more movable shoji can be accommodated in the frame.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view of a sash according to the present embodiment, and FIG. 2 is a transverse sectional view of the sash according to the present embodiment. As shown in FIG. 2, the sash according to the present embodiment is configured by placing four movable shojis 2, 3, 4, and 5 in a frame 1. Among these four movable shojis, the first movable shoji 2 and the third movable shoji 4 are arranged on the outside of the frame 1, and the second movable shoji 3 and the fourth movable shoji 5 are located inside the frame 1. Arranged closer. That is, each movable shoji is arranged so as to be staggered in the indoor / outdoor direction with the adjacent movable shoji. In addition, a screen door is housed inside the frame 1 outside the area where the movable shoji is housed.

  As shown in FIG.1 and FIG.2, the frame 1 which comprises a sash is comprised by frame | framing the upper frame 10, the lower frame 11, and the left and right vertical frames 12 and 12 into a square shape. An inner rail 13 and an outer rail 14 are formed in a protruding shape on the upper surface of the lower frame 11, and the inner rail 13 lowers the second movable obstacle 3 and the fourth movable obstacle 5 that are arranged closer to the room among the movable obstacles. The outer rail 14 guides in the longitudinal direction of the lower frame 11 in the longitudinal direction of the lower frame 11.

  In the upper frame 10, an inner guide part 15 and an outer guide part 16 are respectively formed inside and outside the room. The inner guide part 15 includes the second movable shoji 3 and the fourth movable shoji 5, and the outer guide part 16 serves as the first. The movable shoji 2 and the third movable shoji 4 are each guided. Thereby, each movable shoji is allowed to run along the longitudinal direction of the upper and lower frames 10 and 11.

  As shown in FIG. 2, the first movable shoji 2 adjacent to one vertical frame 12 is disposed outside the frame 1 and guided to the outer rail 14. The first movable shoji 2 is configured by housing a panel body 7 made of a glass plate in a housing 6 formed by assembling an upper rod 20 and a lower rod 21 and left and right vertical rods 22 and 22 into a square shape. Of the left and right vertical rods 22, the vertical rod 22 whose outer peripheral surface faces the vertical frame 12 is formed as a frame-side vertical rod 23, and the opposite vertical rod 22 is the frame of the second movable shoji 3. 6 is formed as a first summoning bowl 24 opposite to 6.

  The frame side vertical rod 23 has an airtight material 23 a on the outer peripheral surface side facing the vertical frame 12, and the airtight material 23 a abuts on the protruding piece 12 a formed on the inner peripheral surface of the vertical frame 12. 1 The airtightness between the movable shoji 2 and the vertical frame 12 is ensured. On the other hand, the 1st summoning bowl 24 has the outer peripheral contact member 24b on the outer peripheral surface. The outer peripheral abutting member 24b faces the outer peripheral surface of the third movable obstacle 4 to alleviate the collision with the casing 6 and also functions as a stopper for the second movable obstacle 3. A smoke return portion 24 a that opens toward the inner peripheral side of the first movable shoji 2 is formed on the side of the room facing the second movable shoji 3 of the first summon bowl 24.

  The second movable shoji 3 adjacent to the first movable shoji 2 is disposed closer to the interior of the frame 1 and guided to the inner rail 13. The second movable shoji 3 is configured by placing a panel body 7 made of a glass plate in a housing 6 formed by assembling an upper rod 20 and a lower rod 21 and left and right vertical rods 22 and 22 into a square shape. One of the left and right vertical rods 22 is a second summing rod 25 that faces the first summing rod 24 of the first movable shoji 2, and the other is a third summing rod 26 that faces the third movable shoji 4. Each is formed.

  The second summon bowl 25 is provided with a crescent 25b on the outer peripheral surface so that the first movable shoji 2 and the second movable shoji 3 can be locked. In addition, on the outer peripheral surface of the second summing bowl 25 facing the first summing bowl 24, on the inner peripheral side of the second movable shoji 3 so as to mesh with the smoke return portion 24a of the first summing bowl 24. A smoke return portion 25a opening toward the top is formed. The smoke return portion 25a of the second sumo bowl 25 is formed within the range of the thickness of the outdoor side surface, and is not formed so as to protrude from the second sump bowl 25 to the outdoor side. The smoke return portion 24a of the summon bowl 24 is formed so as to protrude to the indoor side from the range of the thickness of the indoor side surface, and meshes with the smoke return portion 25a of the second sump bowl 25.

  The first movable shoji 2 is movable in a direction away from the adjacent vertical frame 12, and the second movable shoji 3 is movable in the direction opposite to the moving direction of the first movable shoji 2. The smoke return part 25a of 25 is in a state of facing the indoor side surface of the first summing bowl 24 when the second movable shoji 3 is moved, whereas the smoke return part 24a of the first summing bowl 24 is As the first movable shoji 2 moves, it moves in a direction away from the second summon bowl 25, so that the smoke return portion 24a of the first summit bowl 24 protrudes indoors, and the smoke of the second summon bowl 25 By forming the return portion 25a so as not to protrude, the opposing distance between the first summoning bowl 24 and the second summing bowl 25 is reduced, and the smoke returning portions 24a, 25a do not interfere with the opposing summing bowl. Can be.

  The third summing rod 26, which is the vertical rod 22 on the other side of the second movable shoji 3, has a smoke return portion 26a at the inner peripheral end of the outdoor side surface. The smoke return part 26a of the third summon bowl 26 opens toward the outer peripheral side of the second movable shoji 3, and is formed to face the same direction as the smoke return part 25a of the second sump bowl 25. Yes. In addition, the smoke return portion 25a of the second summon bowl 25 and the smoke return portion 26a of the third summon bowl both have a direction opposite to the direction in which the second movable shoji 3 moves to the first movable shoji 2 side. Therefore, the second movable shoji 3 can be moved to the first movable shoji 2 side alone.

  The 3rd movable shoji 4 adjacent to the 2nd movable shoji 3 is arrange | positioned on the outdoor side of the frame 1, and is guided to the outer rail 14. FIG. The third movable shoji 4 is configured by placing a panel body 7 made of a glass plate in a housing 6 formed by assembling an upper rod 20 and a lower rod 21 and left and right vertical rods 22 and 22 into a square shape. One of the left and right vertical rods 22 is a fourth summing rod 27 facing the third summing rod 26 of the second movable shoji 3, and the other is facing the fourth movable shoji 5 and summing the first movable shoji 2. It is formed as a first summon bowl 24 formed in the same manner as the bowl.

  The fourth summing rod 27 has an outer peripheral abutting member 27b on the outer peripheral surface, and is opposed to the outer peripheral abutting member 24b of the first summing rod 24, and as described above, The third movable shoji 4 has a function of mitigating a collision caused by the movement. Further, the indoor side surface of the fourth summing rod 27 facing the third summing rod 26 opens toward the outer peripheral side of the third movable shoji 4 and meshes with the smoke return portion 26a of the third summing rod 26. A smoke return portion 27a is formed.

  The smoke return portion 27a of the fourth sump bowl 27 is formed so that the outer peripheral side end portion of the fourth sump bowl 27 has a substantially U-shaped cross section. It is made not to protrude from the indoor side surface of the 4 summon bowl 27 to the indoor side. The smoke return portion 26a of the third summon bowl 26 is formed so as to protrude from the outdoor side surface of the third sump bowl 26 toward the outdoor side in order to mesh with the smoke return portion 27a of the fourth sump bowl 27. The outdoor end is formed closer to the outdoor side than the outdoor end of the smoke return portion 25a of the second sump 25. Specifically, the smoke return portion 26a of the third summing bowl 26 includes a contact surface portion 26b that protrudes outward from the outdoor side surface of the third summing bowl 26, and a second end from the outdoor end portion of the contact surface portion 26b. It is comprised with the meshing part 26c extended toward the outer peripheral side of the movable shoji 3. FIG.

  Thus, the smoke return part 26a of the 3rd summoning bowl 26 is formed in a stepped manner with respect to the smoke return part 25a of the 2nd summoning bowl 25, so It is possible to prevent interference with each movable obstacle even if the second movable obstacle 3 is moved alone while meshing with the smoke return portions of the first movable obstacle 2 and the third movable obstacle 4. Further, when the second movable shoji 3 is moved, the smoke return portion 26a of the third summoning rod 26 that moves away from the fourth summoning rod 27 protrudes toward the fourth summing rod 27 side. Thus, the third summing bowl 26 and the fourth summing bowl 27 can be brought close to each other so as not to interfere with each other during the movement.

  Here, the contact surface portion 26b is formed so as to be substantially flush with the outer peripheral surface of the fourth summing rod 27 when the second movable shoji 3 and the third movable shoji 4 are closed. As a result, in a state where the second movable shoji 3 and the third movable shoji 4 are closed, the inner peripheral surface of the second movable shoji 3 can be substantially flush with the outer peripheral surface of the third movable shoji 4, Designability can be enhanced. The outer peripheral surface of the first summon bowl 24 and the inner peripheral surface of the second summit bowl 25 are also formed so as to be substantially flush with the interior and the exterior, so that the straw can be shown as thin as possible. I can do it.

  The first summing rod 24 that constitutes the vertical rod 22 on the other side of the third movable shoji 4 has the same shape as that of the first movable shoji 2, and is the fourth facing the third movable shoji 4. In the movable shoji 5, a second summing rod 25 is disposed on the vertical rod 22 on the side facing the first summing rod 24, and the frame-side vertical rod 23 is disposed on the vertical rod 22 on the side facing the other vertical frame 12. It is arranged. These configurations are the same as those described for the first movable shoji 2 and the second movable shoji 3.

  In FIG. 3, the figure of the state which moved the 2nd movable obstacle 3 and the 3rd movable obstacle 4 from the state of FIG. 2 is shown. As shown in this figure, when the second movable shoji 3 is moved to the first movable shoji 2 side to be in the fully open state, the third summing rod 26 that constitutes the second movable shoji 3 The contact surface portion 26b contacts the outer peripheral contact member 24b of the first movable shoji 2. As a result, the second movable shoji 3 cannot move any further, and the outer peripheral contact member 24 b functions as a stopper for the second movable shoji 3.

  Thus, by providing the smoke return portion 26a of the third summoning bowl 26 at the inner peripheral end portion of the second movable shoji 3, the smoke return portion 26a regulates the movement of the second movable shoji 3. On the other hand, the fourth summing rod 27 can be provided with the smoke return portion 27a at the outer peripheral end of the third movable shoji 4, so that the third movable shoji 4 interferes with the smoke returning portion 26a of the third summing rod 26. It is not necessary to form a step portion for avoiding this, and the shape of the fourth summon bowl 27 can be simplified.

  As shown in FIG. 3, the pattern of opening each movable shoji is that the second movable shoji 3 is moved to the first movable shoji 2 side and the third movable shoji 4 is moved to the fourth movable shoji 5 side to center the frame 1. It is not restricted to what opens a part large. Although not shown, the first movable shoji 2 can be moved to the second movable shoji 3 side and the fourth movable shoji 5 can be moved to the third movable shoji 4 side to open both sides of the frame 1. Also, the first movable obstacle 2, the second movable obstacle 3, and the third movable obstacle 4 are all moved to the fourth movable obstacle 5, or the second movable obstacle 3, the third movable obstacle 4, and the fourth movable obstacle 5 are used. By moving all of them to the first movable shoji 2 side, one of the left and right sides of the frame 1 can be greatly opened.

  Next, a second embodiment of the present invention will be described. The sash of the present embodiment has substantially the same configuration as that of the sash of the first embodiment, but the configurations of the third summing bowl 26 and the fourth summing bowl 27 are different. For this reason, the drawing shows only a cross-sectional view. FIG. 4 is a cross-sectional view of the sash according to the present embodiment, and an enlarged view from the first movable shoji 2 to the third movable shoji 4 is shown.

  As shown in FIG. 4, a smoke return portion 26 a protruding toward the outdoor side is formed on the outdoor side surface of the third summing bowl 26, and the third summing bowl 26 is formed on the indoor side surface of the fourth summing bowl 27. The smoke return part 27a which meshes with the smoke return part 26a is formed. The smoke return part 26a of the third summon bowl 26 is formed closer to the outer peripheral side of the second movable shoji 3 than the inner peripheral end of the outdoor side surface, and the smoke return part of the fourth summon pole 27 correspondingly. The portion 27a is formed closer to the inner peripheral side of the third movable shoji 4 than the outer peripheral end of the indoor side surface.

  Accordingly, a stepped portion 27c is formed on the indoor side surface of the fourth summing bowl 27 so that the smoke return portion 26a of the third summing bowl 26 does not interfere when the second movable shoji 3 is opened. . For this reason, the space | interval between the 3rd summoning bowl 26 and the 4th summoning bowl 27 becomes large compared with 1st Embodiment.

  In FIG. 5, the figure of the state which moved the 2nd movable obstacle 3 and the 3rd movable obstacle 4 from the state of FIG. 4 is shown. In the lower frame 11 constituting the frame body 1, an end block 30 is disposed at an end of a region where the inner rail 13 is formed. Further movement of the second movable shoji 3 moved to the first movable shoji 2 side is restricted when the outer peripheral surface of the second summing rod 25 contacts the end block 30. At this time, unlike the first embodiment, the smoke return portion 26a of the third summing bowl 26 is separated from the outer peripheral contact member 24b provided on the first summing bowl 24.

  In this way, the smoke return portion 26a of the third summing bowl 26 is formed closer to the outer peripheral side of the second movable shoji 3 than the inner peripheral end of the outdoor side surface, and the smoke return of the fourth summing bowl 27 is correspondingly formed. Since the portion 27a is formed closer to the inner peripheral side of the third movable shoji 4 than the outer peripheral end of the indoor side surface, when the second movable shoji 3 is moved to the first movable shoji 2 side, Since the outer peripheral surface of the second summing rod 25 can be in contact with the end block 30 without the 26 smoke return portions 26a being in contact with the first movable shoji 2, the second movable shoji 3 is formed in a fully open state. The opening to be made can be made larger.

  Next, a third embodiment of the present invention will be described. A cross-sectional view of the sash of this embodiment is shown in FIG. As shown in this figure, the sash of the present embodiment is configured by housing six movable shojis in a frame 1. These six movable shojis are, in order from the left side in the figure, the first movable shoji 2, the second movable shoji 3, the third movable shoji 4, the fourth movable shoji 5, the fifth movable shoji 8, and the sixth movable shoji 9. The first movable obstacle 2, the third movable obstacle 4, and the fifth movable obstacle 8 are arranged outside the frame 1 and guided to the outer rail 14, and the second movable obstacle 3, the fourth movable obstacle 5, The six movable shojis 9 are arranged closer to the interior of the frame 1 and guided to the inner rail 13.

  Here, the structure of the 1st movable shoji 2, the 2nd movable shoji 3, and the 3rd movable shoji 4 is the same as that of 1st Embodiment. The fourth movable shoji 5 is the same as the first embodiment in that the vertical rod 22 facing the third movable shoji 4 is the second summing rod 25, whereas the other vertical rod 22 has the second Unlike the first embodiment, a third summon bowl 26 is arranged. The fifth movable screen 8 has the same configuration as the third movable screen 4 and the sixth movable screen 9 has the same configuration as the fourth movable screen 5 in the first embodiment. That is, in this embodiment, a movable shoji having the same configuration as the second movable shoji 3 and the third movable shoji 4 is further arranged between the third movable shoji 4 and the fourth movable shoji 5 in the first embodiment. In order to make the 4th movable shoji 5 movable to the 3rd movable shoji 4 side, the direction of movement is respectively given to the 2nd summoning fence 25 and the 3rd summoning fence 26 which comprise the 4th movable shoji5. Smoke return portions 25a and 26a that are open on the opposite side are formed.

  As described above, the movable shoji arranged near the room guided by the inner rail 13 is formed so that the left and right smoke return portions are opened in the same direction. Even when the frames 1 are alternately stored in the frame 1, the movable shojis close to the room can be moved independently. Note that the number of movable shojis can be further increased so that, for example, 8 sheets can be accommodated in the frame 1.

  Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical idea.

It is a longitudinal cross-sectional view of the sash in 1st Embodiment. It is a cross-sectional view of a sash. It is a figure of the state which moved the 2nd movable shoji and the 3rd movable shoji from the state of FIG. It is a cross-sectional view of the sash in 2nd Embodiment, Comprising: It is an enlarged view from a 1st movable shoji to a 3rd movable shoji. It is a figure of the state which moved the 2nd movable obstacle and the 3rd movable obstacle from the state of FIG. It is a cross-sectional view of the sash of 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 2 1st movable shoji 3 2nd movable shoji 4 3rd movable shoji 5 4th movable shoji 6 Frame 7 Panel body 10 Upper frame 11 Lower frame 12 Inner rail 14 Outer rail 20 Upper arm 21 Lower arm 22 vertical rod 23 frame side vertical rod 24 first summing rod 24a smoke returning portion 24b outer peripheral contact member 25 second summing rod 25a smoke returning portion 25b crescent 26 third summing rod 26a smoke returning portion 26b abutting surface portion 26c Mating portion 27 Fourth summing rod 27a Smoke returning portion 27b Outer peripheral contact member 27c Step portion 30 End block

Claims (5)

In a sash in which at least three movable shojis are housed in a frame formed by framing the upper and lower frames and the left and right vertical frames,
The lower frame has an inner rail and an outer rail along the longitudinal direction on the upper surface, and a first movable shoji adjacent to the one vertical frame is guided by the outer rail, and a second adjacent to the first movable shoji. A movable shoji is guided by the inner rail, a third movable shoji adjacent to the second movable shoji is guided by the outer rail,
The first movable shoji has a first summing bowl that faces the second movable shoji in the indoor and outdoor directions, and the second movable shoji has a second summing bowl that faces the first summing bowl, and A third movable shoji that opposes the third movable shoji in the indoor / outdoor direction, the third movable shoji has a fourth summit soop facing the third summon
The second summon bowl and the third summit bowl have a smoke return portion on the outdoor side opposite to the direction in which the second movable shoji moves toward the first movable shoji, and the first summit bowl. And the fourth summon bowl have smoke return portions on the interior side that mesh with the smoke return portions of the second and third summon bowls with the respective shojis closed. The smoke return portion of the sash is characterized in that the outdoor end portion is formed closer to the outdoor side than the outdoor end portion of the smoke return portion of the second sumo bowl.   The smoke return portion of the third summon bowl is formed at the inner peripheral end portion of the outdoor side surface, the contact surface portion extending toward the outdoor side, and the outer periphery of the third summon basket from the outdoor end portion of the corresponding contact surface portion. And an abutting portion extending toward the side, wherein the abutting surface portion abuts on an outer peripheral surface of a first summing rod constituting the first movable shoji when the second movable shoji is fully opened. Item 1. A sash according to item 1.   The abutment surface portion constituting the smoke return portion of the third sumo bowl has a fourth summon facing the third sump bowl in a state where the meshing part is engaged with the smoke return part of the fourth sump bowl. The sash according to claim 2, wherein the sash is substantially flush with the outer peripheral surface of the mating rod.   The smoke return portion of the third sumo bowl is formed on the outer peripheral side of the second movable shoji than the inner peripheral end of the outdoor side surface, and the indoor side surface of the fourth sumo cup is the third return side of the smoke return part. The sash according to claim 1, wherein the outer peripheral side of the movable shoji is formed closer to the outdoor side.   The said frame body accommodates the 4th movable shoji which adjoins the said 3rd movable shoji, and this 4th movable shoji is guided to the said inner rail, The any one of Claims 1-4 characterized by the above-mentioned. Sash.

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