JP6401746B2 - sash - Google Patents

Description

  The present invention relates to a sash in which internal and external shojis are housed in a frame provided in an opening of a building, and in particular, a gap is not generated by maintaining the positional relationship between the frame and the shojis even when exposed to high temperatures in the event of a fire. Regarding sashes.

  In the sash provided in the opening of the building, a sliding sash is widely used, in which internal and external shojis are housed in a frame. A sash including a sliding sash is required to have a fireproof performance that maintains a closed state for a predetermined time or more even when a fire occurs. In order to ensure sufficient fire prevention performance, even if the sash is exposed to high temperatures, a gap is created between the frame and the shoji by maintaining the positional relationship between the frame and the shoji that make up the sash. It is important not to let them.

  In the sash, not only a resin sash but also a metal sash, resin members are used in various places. Since such a resin member melts when exposed to a high temperature during a fire, it is necessary to maintain the positional relationship between the frame and the shoji even if the resin member melts. In the resin sash, for example, a metal part is provided on each of the frame body side and the shoji side so that they can be engaged with each other in the event of a fire to prevent the shoji from falling off. An example of such a sash is disclosed in Patent Document 1.

JP 2010-265646 A

  In a metal sash, thermal expansion occurs when exposed to a high temperature in the event of a fire, and a phenomenon occurs in which the frame material constituting the frame body and the eaves material constituting the shoji are greatly elongated. If there is a gap at the end of the frame material or the saddlewood, these members will extend in the longitudinal direction. Bend. When such bending occurs, a gap is generated between the frame and the shoji, so that a flame enters from the gap and a sufficient fireproof performance cannot be ensured.

  The lower heel that constitutes the sliding sash shoji is provided with a door wheel that can run on the rail portion formed on the lower frame, and the indoor side surface is in contact with an airtight material provided along the longitudinal direction of the lower frame. To ensure airtightness. Under normal circumstances, the lower arm is supported by the lower frame via a door wheel, and the swinging in the indoor / outdoor direction is restricted so as to reliably contact the airtight material.

  However, door cars are usually made of resin and melt when exposed to high temperatures during a fire. When the door pulley melts, the shoji falls downward, and the lower end is no longer supported and becomes unstable. Therefore, the shoji tilts and creates a gap, thereby reducing the fire performance.

  The present invention has been made in view of the above-mentioned problems, and for the lower armor constituting the sash shoji, even if the door cart melts in the event of a fire, the indoor side surface is reliably prevented from being shaken out of the vertical frame. It aims at providing the sash which can maintain the state contact | abutted to the airtight material and can prevent generation | occurrence | production of a clearance gap.

In order to solve the above-described problem, a sash according to the present invention is a sash including a shoji and a frame having a rail portion on which the shoji runs, and the frame opposes a finding surface on the indoor side of the shoji. An opposing portion and an airtight material that is provided in the opposing portion and abuts against a finding surface on the indoor side of the shoji, and is spaced apart from the rail portion on the outer peripheral surface side of the shoji in the vertical direction from the outdoor side to the indoor side Inclined towards

As the child descends, it is provided so as to abut against the rail portion and press the shoji against the airtight material .

Moreover, in the sash which concerns on this invention, it is preferable that an inclined surface member is equipped with the base fixed to the outer peripheral surface side of a shoji, and the inclined surface part arrange | positioned facing the rail part.

Furthermore, in the sash according to the present invention, the inclined surface member may have the inclined surface portion at a hanging portion depending from the base portion .

Furthermore, in the sash according to the present invention, the inclined surface member may be provided at a position that does not interfere with the resin door fixed to the outer peripheral surface side of the shoji.

And the sash which concerns on this invention may be further equipped with the heating foaming agent which obstruct | occludes between a shoji and a frame body in the state which the inclined surface part contacted the rail part.

According to the sash of the present invention, the sash during fire is exposed to high temperatures, when the supporting shoji bottom is lost by melting the door rollers also, the inclined surface members in contact with the rail portion of the lower frame shoji the because can be pressed against the interior side, maintaining the abutting state with the lower rail with respect to the counter unit of the lower frame to prevent deflection of the indoor and outdoor direction of the lower rail, between the lower frame and the lower frame by airtight material A gap can be prevented from being generated, and the fireproof performance can be increased.

It is a longitudinal cross-sectional view of the sash of this embodiment. It is a cross-sectional view of the sash of this embodiment. It is an enlarged vertical sectional view near the lower frame. It is a top view of an inclined surface member. It is an expanded longitudinal cross-sectional view of the lower frame vicinity in the state at the time of fire outbreak. It is an expanded longitudinal cross-sectional view of lower frame vicinity containing the horizontal inclined surface part concerning a 2nd Example. FIG. 4 is an enlarged longitudinal sectional view in the vicinity of a lower frame including a laterally inclined surface portion according to the embodiment of FIG. 3. It is an expanded longitudinal cross-sectional view of the lower frame vicinity containing the horizontal inclined surface part concerning a 4th Example. FIG. 3 is an enlarged vertical cross-sectional view of the vicinity of the lower frame in which the summon bowl, the vertical hook lower brace part, and the vertical hook lower end metal part are represented by solid lines. It is an enlarged longitudinal cross-sectional view of the lower frame vicinity where the summon bowl appeared.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a longitudinal sectional view of the sash of this embodiment, and FIG. 2 shows a transverse sectional view of the sash of this embodiment. As shown in each of these drawings, the sash according to the present embodiment is a sliding sash in which an inner shoji 2 and an outer shoji 3 are accommodated in a frame 1 attached to a building opening.

  The frame 1 is configured by a rectangular frame of an upper frame 10 and a lower frame 11 and left and right vertical frames 12 and 12 made of a metal material. Each of the inner and outer shojis 2 and 3 is made of a glass plate in a casing 4 in which an upper collar 20 and a lower collar 21, a vertical collar 22 and a summing collar 23 made of a metal material are assembled in a square shape. The panel body 5 is configured.

  The upper frame 10 constituting the frame body 1 includes an indoor side surface 10b and an outdoor side surface 10c extending vertically from the indoor and outdoor ends of the inner peripheral surface 10a, respectively, and between the indoor side surface 10b and the outdoor side surface 10c, An inner upper rail portion 10d that guides the upper side of the shoji 2 in the longitudinal direction and an outer upper rail portion 10e that guides the upper side of the outer shoji 3 in the longitudinal direction are formed so as to protrude from the inner peripheral surface 10a.

  The lower frame 11 constituting the frame body 1 is formed such that the inner peripheral surface 11a has a step in the indoor / outdoor direction, and the indoor side is high and the outdoor side is low. An inner rail portion 11b for guiding the lower side of the inner shoji 2 in the longitudinal direction is provided on the higher indoor side of the inner peripheral surface 11a, and an outer rail 3b is provided on the lower outer side of the inner peripheral surface 11a. The outer rail portions 11c for guiding the lower side in the longitudinal direction are each formed in a protruding shape.

  The inner frame side surface of the lower frame 11 is formed with an inner impingement facing portion 11d that faces the inner side surface of the lower collar 21 constituting the inner shoji 2, and an airtight material 11f is provided at the tip thereof, and this airtight material 11f. Is in contact with the indoor side surface of the inner impeller 2 to ensure the airtightness of the lower side of the inner impeller 2. Further, the lower frame 11 is formed with an outer obstacle facing portion 11e that protrudes from the lower portion of the inner rail portion 11b to the outdoor side and faces the indoor side surface of the lower arm 21 that constitutes the outer obstacle 3, and an airtight material is formed at the tip thereof. 11f is provided, and this airtight material 11f abuts against the indoor side surface of the external obstacle 3 to ensure the airtightness of the lower side of the external obstacle 3.

  The vertical frame 12 constituting the frame body 1 includes an indoor side surface 12b and an outdoor side surface 12c that extend in the vertical direction from the indoor and outdoor end portions of the inner peripheral surface 12a. An intermediate fin portion 12 d is formed on the inner peripheral surface 12 a of the vertical frame 12 on the side where the closed inner pouch 2 is arranged. A portion of the surface constituting the indoor side surface 12 b that protrudes inward in the direction of finding from the inner peripheral surface 12 a is an indoor fin portion 12 f that faces the indoor side surface of the vertical rod 22 that constitutes the inner shoji 2. An airtight material 12g is provided at the front end portion of the indoor fin portion 12f so as to abut against the indoor side surface of the inner limb 2 to ensure the airtightness of the longitudinal side of the inner limb 2.

  An intermediate fin portion 12 d is formed on the inner peripheral surface 12 a of the vertical frame 12 on the side where the closed outer obstacle 3 is disposed, and projects toward the outer peripheral surface of the outer obstacle 3. Further, from the inner peripheral surface 12a on the indoor side from the intermediate fin portion 12d, an indoor fin portion 12f facing the indoor side surface of the vertical rod 22 constituting the shoji 3 protrudes, and an airtight material 12g is provided at the tip thereof. It is provided and is in contact with the indoor side surface of the outer screen 3 to ensure the airtightness of the vertical side of the outer screen 3.

  The upper collar 20 constituting the casing 4 has a panel swallowing portion 20a for accommodating the end of the panel body 5 on the inner peripheral side, and the inner upper rail portion 10d of the upper frame 10 or the outer upper rail on the outer peripheral side. It has the rail guide part 20b which swallows and guides the part 10e. The rail guide portion 20b has a concave cross section, and an airtight material 20c is provided in the vicinity of the opening both indoors and outdoors. When these abut against the inner upper rail portion 10d or the outer upper rail portion 10e, The upper side of the shoji 2 and the shoji 3 is secured.

  The lower basket 21 constituting the casing 4 has a panel swallowing part 21a for accommodating the end of the panel body 5 on the inner peripheral side. A door wheel 21d is provided on the outer peripheral side, that is, the lower end portion of the lower arm 21, and the door wheel 21d is placed on the inner rail portion 11b or the outer rail portion 11c of the lower frame 11, so 3 is movable.

  On the indoor side surface of the lower rod 21, an indoor surface extending portion 21b having a lower end portion extending downward is formed. The inner surface extension portion 21b of the inner shoji 2 faces the inner obstacle facing portion 11d of the lower frame 11, and the inner surface extension portion 21b of the outer shroud 3 faces the outer obstacle facing portion 11e of the lower frame 11, and is airtight. It contacts the material 11f. An outdoor surface extension portion 21c having a lower end portion extending downward is also formed on the outdoor side surface of the lower rod 21. The outdoor surface extension part 21c extends downward from the upper end of the inner rail part 11b or the outer rail part 11c, and prevents wind and rain from blowing into the room.

  The vertical basket 22 constituting the casing 4 has a panel swallowing part 22a for accommodating the end of the panel body 5 on the inner peripheral side. A concave fin swallowing portion 22 c that swallows the intermediate fin portion 12 d of the vertical frame 12 is formed on the outer peripheral side of the vertical rod 22. The indoor side surface constituting the fin swallowing part 22c abuts against the airtight material 12g provided on the indoor fin part 12f of the vertical frame 12, thereby ensuring the airtightness of the longitudinal sides of the inner and outer children 2 and 3 Yes.

  The panel swallowing portion 22a of the vertical basket 22 is provided with a vertical pulling member 25 made of a resin piece at the indoor side portion at the intermediate position in the longitudinal direction. The vertical pulling member 25 has a shape that is sandwiched between the indoor side surface of the panel swallowing portion 22a and the intermediate fin portion 12d of the vertical frame 12 in a state in which the inner shoji 2 or the outer shoji 3 is closed. Alternatively, when the external shoji 3 is closed, the vertical spade 22 is prevented from swinging indoors and outdoors, and the internal shoji 2 or the external shoji 3 is drawn indoors to ensure that the vertical spade 22 is airtight of the vertical frame 12. It abuts on the material 12g.

  The summoning bowl 23 constituting the casing 4 has a panel swallowing part 23a for accommodating the end of the panel body 5 on the inner peripheral side. Further, the indoor side wall portion 23b of the summoning lance 23 constituting the external shoji 3 and the outdoor side wall portion 23c of the summoning diaper 23 constituting the internal repellent child 2 are respectively formed in a substantially L shape, and the inner shoji 2 and the outside A smoke return portion 23g is formed which meshes with each other when the shoji 3 is closed. Further, an airtight material 23 h is provided on the outdoor side wall portion 23 c of the summoning cage 23 constituting the inner shoji 2. The smoke return portion 23g closes the gap at the summoning part of the inner shoji 2 and the outer shoji 3, and the airtight material 23h secures the airtightness of the summoning side.

  Next, securing of fire prevention performance in the lower arm 21 will be described in detail. When a fire occurs and the sash is exposed to a high temperature, the resin door roller 21d provided in the lower arm 21 melts, and as such, the lower end portions of the inner shoji 2 and the outer shoji 3 are no longer supported and unstable. Thus, a gap is created between the lower frame 11 and the lower rod 21 to reduce the fireproof performance. Therefore, in the present embodiment, even if the door pulley 21d is melted, by maintaining the state where the lower arm 21 is pulled toward the indoor side, the generation of a gap is prevented and the fireproof performance is to be ensured.

  FIG. 3 shows an enlarged longitudinal sectional view near the lower frame 11. The longitudinal sectional view of FIG. 1 is a sectional view showing the door pulley 21d, while FIG. 3 is a sectional view at a different position. As shown in FIG. 3, a metal inclined surface member 24 is attached to the outer peripheral surface portion 21 e of the lower collar 21. The inclined surface member 24 is made of a piece-shaped member, and a plurality of inclined surface members 24 are provided along the longitudinal direction of the lower arm 21 so as not to interfere with the door wheel 21d.

  The inclined surface member 24 includes a base portion 24a that comes into contact with and is fixed to the outer peripheral surface portion 21e of the lower collar 21, and a hanging portion 24b that hangs downward from the base portion 24a. The drooping portion 24b has an inclined surface-like horizontal inclined surface portion 24c extending from the outdoor inner peripheral side to the indoor outer peripheral side at an intermediate position in the vertical direction. The horizontal inclined surface portion 24c is the inner rail portion 11b of the lower frame 11 or the outer rail. It faces the part 11c. Moreover, the front end side of the laterally inclined surface portion 24c of the hanging portion 24b is opposed to the inner side rail portion 11b of the lower frame 11 or the indoor side surface of the outer rail portion 11c.

  FIG. 4 shows a plan view of the inclined surface member 24. As shown in this figure, the base 24a is provided with a fixing hole portion 24e for screwing and fixing to the outer peripheral surface portion 21e of the lower collar 21, and a central portion of one side of the base portion 24a is cut out, and the base portion 24a is suspended from the cutout portion. A portion 24b is formed.

  As shown in FIG. 3, the holding member 24 d fixed to the base portion 24 a of the inclined surface member 24, is suspended downward from the outer surface extension portion 21 c of the lower collar 21, and is fixed to the base portion 24 a of the inclined surface member 24. Is provided. A heating foaming agent 27 is provided along the longitudinal direction on the inner surface side of the outdoor surface extending portion 21c of the lower collar 21.

  The heating foaming agent 27 foams when the temperature exceeds a predetermined temperature, and the volume increases several tens of times. As the sash is exposed to a high temperature in the event of a fire, it foams and closes the lower part of the lower arm 21, It is possible to prevent the resin material from flowing out by the melted door roller 21d. Since the heating foaming agent 27 is held by the outdoor surface extending portion 21c, which is a vertical surface, there is a risk of falling off in the event of a fire, but in this case as well, it is held by the holding member 24d. It can be made to foam toward the lower part of. Moreover, the heating foaming agent 28 is provided also in the inner surface side of the outdoor surface extension part 21c of the inner shoji 2, and the outflow of the resin material by the doorwheel 21d is prevented.

  When a fire occurs and the sash is exposed to a high temperature, the resin door wheel 21d melts as described above, and the inner and outer shojis 2 and 3 lose their lower end support. For this reason, the lower eyelid 21 moves toward the lower frame 11 side. FIG. 5 shows an enlarged longitudinal sectional view of the vicinity of the lower frame 11 in the state at the time of the occurrence of a fire.

  As shown in FIG. 5, even when a fire occurs, the inclined surface member 24 made of a metal material is fixed to the lower gutter 21 as it is. When the lower eyelid 21 moves to the inner peripheral surface 11a side of the lower frame 11, the laterally inclined surface portion 24c of the inclined surface member 24 comes into contact with the distal end portion of the inner rail portion 11b or the outer rail portion 11c. As the lower rod 21 further moves to the inner peripheral surface 11a side of the lower frame 11 due to its own weight, the lower rod 21 is moved indoors by the inner rail portion 11b or the outer rail portion 11c along the inclination direction of the lateral inclined surface portion 24c. Pressed.

  Finally, as shown in FIG. 5, the vertical surface portion on the upper side of the laterally inclined surface portion 24c of the hanging portion 24b is in a state of pressing the inner rail portion 11b or the outer rail portion 11c. The indoor side surface of the lower collar 21 is pressed against the airtight material 11f provided on the inner frame facing portion 11d of the lower frame 11, and the outer side surface of the lower collar 21 is provided on the outer obstacle facing portion 11e of the lower frame 11 in the outer frame 3. It is pressed against the airtight material 11f. Therefore, it is possible to prevent a gap from being generated between the lower eyelid 21 and the lower frame 11. That is, the fireproof performance of the lower arm 21 can be maintained.

  As described above, the laterally inclined surface portion 24c is provided on the outer peripheral surface portion 21e of the lower rod 21 so as to be opposed to the inner rail portion 11b or the outer rail portion 11c of the lower frame 11. 21 to the indoor side can be realized. Moreover, since the horizontal inclined surface part 24c is separated from the inner rail part 11b or the outer rail part 11c at the normal time, it is possible to prevent the traveling by the door pulley 21d from being hindered.

  In particular, in the sash of the present embodiment, the clearance between the frame body 1 and the inner limbs 2 and the outer limbs 3 is set to be large in consideration of the fact that the housing 4 is bent by a strong wind or the like. By providing the lower flange 21 with the laterally inclined surface portion 24c facing the rail portion 11b or the outer rail portion 11c, even if the clearance is large, the lower rod 21 can be surely pulled toward the indoor side to prevent the generation of a gap. it can. Further, the vertical clearance between the frame 1 and the inner and outer obstacles 2 and 3 is set so as not to interfere with each other even if the height of the door wheel 21d is adjusted.

  The laterally inclined surface portion can take another form. FIG. 6 shows an enlarged longitudinal sectional view of the vicinity of the lower frame 11 including the laterally inclined surface portion according to the second embodiment. In FIG. 6, a laterally inclined surface portion 25 c is provided on a detachment prevention component 25 provided on the lower arm 21 of the shoji 3. The anti-separation component 25 includes a base portion 25a fixed in contact with the outer peripheral surface portion 21e of the lower collar 21, a hanging portion 25b hanging downward from the base portion 25a, and a detent portion 25d provided at the lower end portion of the hanging portion 25b. And is provided at the center position in the longitudinal direction of the lower eyelid 21.

  The detent portion 25d is formed so as to protrude from the lower end portion of the drooping portion 25b toward the room side, and is disposed so as to sink into the lower portion of the outer frame facing portion 11e of the lower frame 11. Thereby, when the external shoji 3 tries to lift for some reason, the anti-slip portion 25d interferes with the external obstacle facing portion 11e, so that the external shoji 3 does not come off from the outer rail portion 11c of the lower frame 11. can do.

  In FIG. 6, the laterally inclined surface portion 25 c is formed at an intermediate position in the vertical direction of the drooping portion 25 b that constitutes the locking part 25. In the inner shoji 2, the inclined surface member 24 is provided similarly to FIG. 3, and the laterally inclined surface portion 24c is formed in the hanging portion 24b. Thus, the same effect as the case where the inclined surface member 24 is provided in the lower collar 21 can be obtained also by forming the horizontal inclined surface portion 25c in the anti-separation component 25 having the hanging portion 25b.

  FIG. 7 shows an enlarged longitudinal sectional view of the vicinity of the lower frame 11 including the laterally inclined surface portion according to the embodiment of FIG. In FIG. 7, a laterally inclined surface portion 26 c is provided on the reinforcing component 26 provided on the lower arm 21 of the inner shroud 2. The reinforcing part 26 is a metal part provided when it is desired to increase the strength of the lower collar 21, and is a base part 26 a that is in contact with and fixed to the outer peripheral surface part 21 e of the lower collar 21, and is suspended from the base part 26 a. And a hanging portion 26b along the outdoor surface extending portion 21c of the lower collar 21. A laterally inclined surface portion 26c is formed by bending a portion of the hanging portion 26b toward the indoor side. An inclined surface member 24 is provided on the lower collar 21 of the external shoji 3.

  As shown in FIG. 6 and FIG. 7, by forming the laterally inclined surface portion on the anti-separation component 25 and the reinforcing component 26, the laterally inclined surface portion can be formed on the part originally provided on the lower collar 21. There is no need to provide new parts, and the number of parts can be reduced.

  Further, the laterally inclined surface portion can be formed integrally with the lower collar 21. FIG. 8 shows an enlarged longitudinal sectional view of the vicinity of the lower frame 11 including the laterally inclined surface portion according to the fourth embodiment. As shown in this figure, a projecting piece 21f projecting from the outer peripheral surface portion 21e is formed on the lower collar 21 of the inner and outer shojis 2 and 3, respectively, and a laterally inclined surface portion 21g is formed on the projecting piece 21f. It faces the inner rail portion 11b or the outer rail portion 11c.

  As described above, the laterally inclined surface portion 21g formed integrally with the lower collar 21 can also perform the same function as the laterally inclined surface portion in the previous embodiments. Since the laterally inclined surface portion 21g is integrally formed with the lower collar 21, it is not necessary to separately provide components for the laterally inclined surface portion, so that the number of components can be reduced.

  At the lower end portion of the summoning cage 23 constituting the external shoji 3, the metal rails attached to the components provided to be guided by the inner rail portion 11b and the outer rail portion 11c are used to prevent the swinging. FIG. 9 shows an enlarged vertical sectional view near the lower frame 11. In this figure, the lower lid 21 of the shoji 3 is shown by a broken line, and the summoning cage 23, the vertical lower brace component 30, and the vertical lower end metal component 31 are shown by a solid line. The vertical hook lower brace component 30 is provided inside the hollow of the lower end portion of the summoning hook 23 and has a sliding contact portion 30 a straddling the outer rail portion 11 c of the lower frame 11 on the lower surface side. The sliding contact portion 30a is in sliding contact with the outer rail portion 11c, and smoothly guides the outer shoji 3 along the outer rail portion 11c.

  Supporting parts 30b and 30c on which the two heating foaming agents 32 and 33 can be placed are formed on the vertical armrest part 30. The upper surfaces of the heating foams 32 and 33 placed on the support portions 30b and 30c are covered with the covering metal portions 31a and 31b of the vertical lower end metal component 31 provided above the vertical vertical anti-vibration component 30. Yes. The vertical lower end metal part 31 has a vertical surface portion 31d extending upward from the coated metal portion 31b, and a heating foaming agent 34 is also provided on the vertical surface portion 31d.

  Between the covering metal parts 31 a and 31 b of the vertical bottom metal part 31, an inclined surface-like horizontal inclined surface part 31 c is formed, which is opposed to the outer rail part 11 c of the lower frame 11. When the lower rod 21 approaches the inner peripheral surface 11a of the lower frame 11 in the event of a fire, the laterally inclined surface portion 31c is pressed indoors by the outer rail portion 11c, and the indoor side surface of the summing rod 23 faces the outer frame of the lower frame 11 The state of being in contact with the airtight material 11f provided in the portion 11e can be maintained. In this way, in the summoning cage 23 of the shoji 3, the laterally inclined surface portion 31c of the vertical metal lower end metal part 31 attracts the lower cage 21 to the indoor side when the firewood 21 moves to the lower frame 11 side in the event of a fire. Can be made.

  Further, at the lower end portions of the vertical rod 22 and the summoning rod 23 of the inner shoji 2 and the outer shoji 3, they are attracted by the shapes formed on the inner peripheral wall portion and the outer peripheral wall portion. FIG. 10 shows an enlarged cross-sectional view of the vicinity of the lower frame 11 where the shape of the summoning bowl 23 appears. At the lower end of the summoning bowl 23, a substantially U-shaped cutout 23k is formed in each of the inner peripheral wall 23d and the outer peripheral wall 23e. In addition, although the summoning basket 23 is demonstrated in FIG. 10, the vertical hook 22 has the same structure.

  The cutout portion 23k is formed with a convex portion 23m in which the vicinity of the upper end of the room rises in both the inner and outer shojis 2 and 3, and the innermost portion of the cutout portion 23k has a shape biased toward the outdoor side. Yes. For this reason, when the lower eyelid 21 approaches the inner peripheral surface 11a of the lower frame 11 in the event of a fire, the projecting portion 23m comes into contact with the inner rail portion 11b or the outer rail portion 11c. Both are drawn indoors. As a result, not only in the lower collar 21 but also in the summoning collar 23, the casing 4 is in contact with the airtight material 11f provided on the inner frame facing part 11d and the outer panel facing part 11e of the lower frame 11, respectively. Can be maintained.

  In FIG. 10, the convex part 23m is formed in the notch part 23k of the summoning bowl 23, and the casing 4 is attracted in the event of a fire, but the notch part 23k of the summoning bowl 23 is U-shaped. The same function can be given by fixing the plate having the notched portion and the convex portion to the inner peripheral wall portion 23d and the outer peripheral wall portion 23e of the summoning bowl 23 in advance.

  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. For example, in the present embodiment, the internal and external shojis 2 and 3 are retracted into the frame 1, but either the internal or external shoji 2 or 3 is a single-drawing sash that is fixed to the frame 1. Similarly, the present invention can be applied.

DESCRIPTION OF SYMBOLS 1 Frame 2 Inner shoji 3 External shoji 4 Housing 5 Panel body 10 Upper frame 11 Lower frame 11b Inner rail part 11c Outer rail part 11f Airtight material 12 Vertical frame 20 Upper collar 21 Lower collar 22 Vertical collar 23 Summing collar 24 Inclination Surface member 24a Base 24b Hanging part 24c Lateral inclined surface part 25 Anti-slip part 26 Reinforcement part 27 Heating foaming agent

Claims (5)

A sash comprising a shoji and a frame having a rail portion on which the shoji runs,
The frame is provided with opposing portion opposed to locate surface of the interior side of the sash, and a gas-tight material in contact with the found surface of the interior side of the sash provided in the opposing portion,
An inclined surface member in which an inclined surface portion that is spaced apart from the rail portion in the vertical direction and is inclined from the outdoor side toward the indoor side is opposed to the outer peripheral surface side of the shoji ,
The sash , wherein the inclined surface member is provided so as to abut against the rail portion and press the shoji against the hermetic material as the shoji descends when a fire occurs .   2. The sash according to claim 1, wherein the inclined surface member includes a base portion fixed to the outer peripheral surface side of the shoji and the inclined surface portion disposed to face the rail portion.   The sash according to claim 2, wherein the inclined surface member has the inclined surface portion at a hanging portion depending from the base portion.   The sash described in any one of Claims 1 thru | or 3 with which the said inclined surface member is provided in the position which does not interfere with the resin door roller fixed to the outer peripheral surface side of the said shoji.   The sash as described in any one of Claim 1 to 4 further equipped with the heating foaming agent which obstruct | occludes between the said shoji and the said frame body in the state which the said inclined surface part contacted the said rail part.

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