JP2014084648A - Opening device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening device that improves fireproof performance by preventing a gap from being made between meeting portions of inner and outer sashes even in the case of fire.SOLUTION: Inner and outer sashes are housed in a frame body that is provided in a building opening. Upper rail portions 10b and 10c along a longitudinal direction are formed in a head 10 that configures the frame body. The head 10 has a wind stop member 30 provided in a portion that faces meeting portions of meeting stiles configuring the inner and outer sashes. A heated and foamed material 35 is arranged between the wind stop member 30 and the head 10.

Description

  The present invention relates to an opening device in which internal and external shojis are housed in a frame provided in a building opening, and more particularly to an opening device having high fire prevention performance by reliably closing an upper part of a summing portion of internal and external shojis in the event of a fire.

  As the opening device that houses the internal and external shoji in the frame provided in the building opening, the sliding opening device that allows the internal and external shoji to run in a sliding manner, or the single pulling opening that allows one of the shoji to run freely There is a device. Parts for ensuring airtightness are provided in the summoning part of the shoji. A windshield member having a fin portion that abuts against the upper end portion of the inner and outer shoji is provided on the upper frame of the summoning portion, thereby ensuring airtightness inside and outside the room. As an opening part apparatus provided with such a windshield member, there exist some which are mentioned in patent document 1, for example.

JP 2007-177415 A

  The windshield member provided at the summing part of the inner and outer shoji is made of resin material, so it melts when a fire breaks out and the opening device is exposed to high temperature, and a gap is created between the frame and the shoji at the summoning part. It will be. If there is a gap between the frame and the shoji, heat and flame may penetrate inside and outside the room.

  In addition, the shoji has a summoning bowl having a hollow cross section, and the resin bowls provided at both ends of the summoning bowl are melted so that the summoning bowl communicates vertically. Since the summoning bowl straddles the rail part formed in the frame, the summoning bowl communicates with the top and bottom, leading to communication between the interior and the exterior, which may also cause heat and flame to penetrate inside and outside the room. was there.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an opening device that has high fire prevention performance by preventing a gap from being generated at the summing portion of the internal and external shojis even when a fire occurs.

In order to solve the above-mentioned problem, an opening device according to the invention of claim 1 includes an inner and outer shoji placed in a frame provided in a building opening, and an upper rail portion extending in a longitudinal direction in an upper frame constituting the frame. In the opening device in which is formed,
The upper frame has a windshield member at a portion facing the summoning portion of the summoning bowl that constitutes the inner and outer shoji, and a heating foam material is disposed between the windshield member and the upper frame. It is configured as a feature.

  According to the first aspect of the present invention, when a fire occurs, the heated foam material foams and can close the gap between the upper frame and the summon bowl.

  In the opening device according to the invention of claim 2, the windshield member includes a main body portion attached to the upper frame and an airtight piece provided on the main body portion, and the airtight piece or the The heating foam material is provided in the main body portion.

  According to the invention which concerns on Claim 2, a heating foam can be arrange | positioned between a windshield member and an upper frame only by attaching a windshield member to an upper frame.

  Furthermore, the opening part apparatus which concerns on invention of Claim 3 has a plane part with which the said main-body part can contact | abut the upper end part of the said internal and external shoji, Between this plane part and the internal peripheral surface of the said upper frame The airtight piece made of a foam material is provided.

  According to the invention of claim 3, in the case where the airtight piece has the windshield member whose flat surface portion is pressed against the upper end of the shoji, it is heated so as to close the gap between the upper frame and the summoning bowl in the event of a fire. Foam can be placed.

  Furthermore, the opening device according to the invention of claim 4 is characterized in that the heating foam material is the airtight piece arranged between the windshield member and the upper frame.

  According to the invention which concerns on Claim 4, a number of parts can be reduced, ensuring fire prevention performance.

  And the opening part apparatus which concerns on invention of Claim 5 has the fin part which the said airtight piece can contact | abut to the upper end part of the said internal and external shoji, and hold | maintains the said heating foam material at least above the said fin part. It is comprised as follows.

  According to the invention which concerns on Claim 5, when a fin part has a windshield member which contact | abuts the upper end part of a shoji, a heating foam material is arrange | positioned so that the clearance gap between an upper frame and a summoning bowl may be plugged up at the time of a fire outbreak can do.

  In the opening device according to a sixth aspect of the invention, the main body portion is provided with a distance between an engagement portion that can be engaged with the upper frame and an upper end portion of the inner and outer obstacle provided at one end of the main body portion. It is configured to include an adjustable stopper portion.

  According to the invention which concerns on Claim 6, while being able to attach a main-body part to an upper frame easily, it can have the function of the slippery prevention.

  Moreover, the opening part apparatus which concerns on invention of Claim 7 has a hollow part which the said summoning bowl follows a longitudinal direction, and this hollow part is arrange | positioned so that it may straddle the said upper rail part, The said heating foam material Is arranged so as to face the hollow portion.

  According to the seventh aspect of the present invention, it is possible to prevent the foamed heated foam material from entering the hollow portion of the summon bowl and communicating the interior and the exterior through the hollow portion of the summon bowl.

  Further, the opening device according to the invention of claim 8 is a blockage between the summon pods and the summon jars for closing the gap between the summons along the longitudinal direction in the event of a fire. A member is provided.

  According to the eighth aspect of the present invention, it is possible to prevent the penetration of heat and flame by continuously closing the gap generated between the summoning tubs up to the upper end portion by the closing member and the heating foam material.

  According to the opening device according to the present invention, it is possible to improve the fireproof performance by preventing a gap from being generated in the summoning part of the internal and external shoji even when a fire occurs.

It is a longitudinal cross-sectional view of the opening part apparatus in this embodiment. It is a cross-sectional view of the opening part apparatus in this embodiment. It is an upper enlarged longitudinal cross-sectional view near the summoning part of an internal and external shoji. It is a disassembled perspective view of a windshield member. It is a front view showing the relationship between an upper frame, a windshield member, and a summon bowl. It is a perspective view of the main-body part which comprises a windshield member, and sectional drawing of an upper frame and a windshield member in the state before attaching a windshield member to an upper frame. It is the perspective view of the main-body part which rotated the rotation engaging part, and sectional drawing of an upper frame and a windshield member in the state which attached the windshield member to the upper frame. It is a side view of the main-body part which comprises a windshield member. FIG. It is the front view showing the relationship between the upper frame at the time of fire outbreak and the summon bowl. It is an expanded cross-sectional view of the vicinity of the summoning part at the time of fire outbreak. It is a disassembled perspective view of the windshield member at the time of changing the structure of an airtight piece. It is a disassembled perspective view of the windshield member of a 2nd form. It is a perspective view of a windshield member. It is an upper part enlarged longitudinal sectional view near the summoning part of the internal and external shoji which has a windshield member. It is a front view showing the relationship between an upper frame, a windshield member, and a summon bowl. It is the front view showing the relationship between the upper frame at the time of fire outbreak and the summon bowl.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a longitudinal sectional view of the opening device in the present embodiment, and FIG. 2 shows a transverse sectional view of the opening device in the present embodiment. The opening device of this embodiment will be described by taking a sash as an example. As shown in FIG. 1 and FIG. 2, the sash draws the inner frame 2 and the outer frame 3 in a frame 1 that is formed by rectangularly framing an upper frame 10, a lower frame 11, and left and right vertical frames 12, 12. Consists of differences. The inner and outer shoji 2 and outer shoji 3 have a panel body 5 made of a glass plate in a casing 4 in which an upper collar 20 and a lower collar 21, a frame-side vertical collar 22 and a summing collar 23 are assembled in a square shape. It becomes.

  On the inner peripheral surface 10a of the upper frame 10 constituting the frame 1, an upper inner rail portion 10b and an upper and outer rail portion 10c for guiding the inner and outer obstacles 2 and 3, respectively, are formed along the longitudinal direction. Further, an inner rail portion 11a and an outer rail portion 11b for guiding the inner shoji 2 and the outer shoji 3, respectively, are formed on the inner peripheral surface of the lower frame 11 along the longitudinal direction.

  A concave guide groove 20a that is guided by the upper inner rail portion 10b or the upper outer rail portion 10c of the upper frame 10 is formed on the upper side of the upper rod 20 that constitutes the housing 4. A door wheel 24 that is placed on the inner rail portion 11a or the outer rail portion 11b of the lower frame 11 to allow the shoji to run is provided below the lower rod 21.

  As shown in FIG. 2, an airtight material 25 is provided on the outside surface of the summoning cage 23 constituting the inner shoji 2 along the longitudinal direction. Touch. In addition, smoke return portions 26 having a substantially L-shaped cross section are formed along the longitudinal direction on the outdoor side surface of the summoning cage 23 constituting the inner shoji 2 and the indoor side surface of the summoning salve 23 constituting the outer shoji 3, respectively. These are in contact with each other so as to mesh with each other. A heating foam material 27 is also provided along the longitudinal direction on the indoor side surface of the summon bowl 23 that constitutes the shoji 3.

  In FIG. 2, the inner rail portion 11 a and the outer rail portion 11 b of the lower frame 11 appear, but the upper inner rail portion 10 a and the upper and outer rail portion 10 b of the upper frame 10 are respectively an inner rail portion in the indoor / outdoor direction. 11a and the outer rail portion 11b are in the same position. The summoning cage 23 of the inner shoji 2 has a hollow portion 23a straddling the upper inner rail portion 10a along the longitudinal direction. Moreover, the summoning cage | basket 23 of the external shoji 3 has the hollow part 23a which straddles the upper outer rail part 10b along a longitudinal direction.

  FIG. 3 shows an enlarged vertical sectional view of the upper part in the vicinity of the summoning part of the inner and outer shoji. As shown in this figure, the upper groove 20 has a guide groove 20a provided with upper airtight members 20b on both sides of the upper end, and is in contact with the upper inner rail portion 10b or the upper outer rail portion 10c. Further, in the region between the upper inner rail portion 10b and the upper outer rail portion 10c of the upper frame 10, a windbreak member 30 of the first form is provided.

  The windshield member 30 is in contact with the upper ends of the inner and outer children 2 and 3 at the summing portion of the inner and outer children 2 and 3 so that no gap is generated between the frame 1 and the inner and outer children 2 and 3. It is what you want to do. The windshield member 30 of the present embodiment includes a main body portion 31 that comes into contact with the inner and outer children 2 and 3, and an airtight piece 32 provided between the main body portion 31 and the inner peripheral surface 10 a of the upper frame 10. It has become.

  FIG. 4 shows an exploded perspective view of the windshield member 30. The main body 31 constituting the windshield member 30 is in an open state with a rotation engagement portion 31a that is rotatable and engageable with the upper frame 10, an engagement claw portion 31b that is engageable with the upper frame 10, and An anti-slip part 31c that opposes the upper side of the inner shoji 2, and an abutment part 31d that is provided so as to cover the airtight piece 32 and contacts the upper ends of the shojis 2 and 3. It is configured. The main body 31 is made of a resin material such as 6 nylon.

  The contact part 31d which comprises the main-body part 31 is formed so that it may become concave shape toward the downward direction, The bottom part is the plane part 31e. A heating foam material 35 is provided on the flat portion 31e, and the airtight piece 32 is disposed thereon.

  The airtight piece 32 is a sponge-like member made of ethylene-propylene-diene rubber or the like. The material of the airtight piece 32 may be another elastic material such as silicon. In the airtight piece 32, a substantially rectangular parallelepiped piece main body 32a and a locking portion 32b formed on the upper surface of the piece main body 32a are integrally configured. As shown in FIG. 3, the locking portion 32 b is locked and fixed to a concave portion 10 d formed on the inner peripheral surface 10 a of the upper frame 10.

  FIG. 5 shows a front view showing the relationship between the upper frame 10, the windshield member 30, and the summoning tub 23. The hollow portion 23a of the summoning bowl 23 is closed by a resin upper end cap 23b provided at the upper end portion. In the windshield member 30, the flat surface portion 31 e of the main body portion 31 abuts against the upper end portion of the summoning bowl 23.

  The airtight piece 32 interposed between the inner peripheral surface 10 a of the upper frame 10 and the flat surface portion 31 e of the windshield member 30 acts to press the flat surface portion 31 e against the upper end portion of the summing bowl 23. This prevents a gap from being formed between the upper end portion of the summoning bowl 23 and the windshield member 30. Moreover, when opening and closing the inner shoji 2 and the outer shoji 3, the upper end portion of the upper collar 20 is in sliding contact with the flat surface portion 31e, but the upper collar 20 can be stably in sliding contact with the flat surface portion 31e which is a resin plate. it can.

  FIG. 6 is a perspective view of the main body 31 constituting the windshield member 30 (FIG. 6A) and a cross section of the upper frame 10 and the windshield member 30 in a state before the windshield member 30 is attached to the upper frame 10. The figure (FIG.6 (b)) is shown. As shown in FIG. 6A, the main body 31 is formed with engaging claws 31b and 31b on both sides in two longitudinal directions. The rotation engagement portion 31a is formed so as to be longer on one side and shorter in a direction orthogonal to the rotation engagement portion 31a. In FIG. 6A, the longitudinal direction of the rotation engagement portion 31a and the longitudinal direction of the main body portion 31 coincide with each other. Is arranged.

  As shown in FIG. 6B, a concave portion 10d is formed on the inner peripheral surface 10a of the upper frame 10 between the upper inner rail portion 10a and the upper outer rail portion 10b. The concave portion 10d has projecting pieces 10e at the edges on both sides. The engaging claw portion 31b of the main body portion 31 can be engaged with the protruding piece 10e in the concave portion 10d. Further, when the longitudinal direction of the rotation engaging portion 31a and the longitudinal direction of the main body portion 31 coincide with each other, the rotation engaging portion 31a is not engaged with the concave portion 10d. In a state in which is merely engaged with the upper frame 10, the main body 31 can be slid in the longitudinal direction of the upper frame 10.

  7 is a perspective view of the main body 31 (FIG. 7A) in which the rotation engaging portion 31a is rotated, and the upper frame 10 and the windshield member 30 in a state where the windshield member 30 is attached to the upper frame 10. Sectional drawing (FIG.7 (b)) is shown. As shown in FIG. 7A, by rotating the rotation engagement portion 31a by 90 ° from the lower surface side, the longitudinal direction of the rotation engagement portion 31a and the longitudinal direction of the main body 31 are orthogonal to each other, and the rotation engagement portion 31a. Is substantially the same as the width of the concave portion 10 d of the upper frame 10. At this time, as shown in FIG. 7B, the rotation engaging portion 31a is engaged with the concave portion 10d and fixed so that the main body portion 31 cannot move any further.

  In FIG. 8, the side view of the main-body part 31 which comprises the windshield member 30 is shown. The inclination prevention part 31c provided in the one end part of the main-body part 31 can change inclination by tightening or loosening the screw 31f, and can adjust a lower end position to an up-down direction by it. The stopper portion 31c faces the upper end portion of the inner limb 2 at a predetermined interval. However, it is necessary to prevent the detachment portion 31c from coming into contact with the inner limb 2 when traveling, and adjustment in the vertical direction is required. In the windshield member 30 of this embodiment, the adjustment can be easily performed with the screw 31f.

  FIG. 9 shows an enlarged cross-sectional view of the vicinity of the summoning part of the internal and external shoji. In this figure, the arrangement of the windshield member 30 and the heating foam material 35 is shown in an overlapping manner. The heating foam material 35 faces the upper end of the summing portion from the summoning cage 23 constituting the inner shoji 2 to the summoning cage 23 constituting the outer shoji 3. Further, the heating foam material 35 faces both the hollow portion 23 a of the summoning cage 23 that constitutes the inner shoji 2 and the hollow portion 23 a of the summoning cage 23 that constitutes the outer shoji 3.

  In FIG. 10, the front view showing the relationship between the upper frame 10 at the time of fire outbreak and the summon bowl 23 is shown. When a fire occurs and the opening device is exposed to a high temperature, the main body 31 and the airtight piece 32 of the windshield member 30 made of a resin material are melted. Moreover, since the upper end cap 23b provided in the upper end part of the summoning bowl 23 is also made of a resin material, it melts. The heated foam material starts to foam at 250 to 300 ° C. At this time, a part of the resin material has already started to be softened and melted, and the foamed heat foamed material has been foamed in this softened and melted space. Enters and closes the gap. The heated foam material 35 is foamed before and after the resin material is melted to increase its volume.

  The heating foam 35 foams so as to block the region between the upper inner rail portion 10a and the upper outer rail portion 10b of the upper frame 10, and also foams toward the summoning tub 23 side. It also enters the hollow portion 23a of the flange 23. As a result, as shown in FIG. 10, the space between the upper end of the summing bowl 23 and the inner peripheral surface 10 a of the upper frame 10 is closed, and the upper portion of the hollow portion 23 a of the summing bowl 23 is closed by the heating foam material 35. Is done.

  FIG. 11 shows an enlarged cross-sectional view of the vicinity of the summoning portion when a fire occurs. The foamed heating foam 35 closes the upper end of the hollow portion 23a of the summoning cage 23 as described above, and also blocks the region between the summoning cage 23 of the inner shoji 2 and the summing cage 23 of the outer shrine 3. Yes. Moreover, the heating foam material 27 provided along the longitudinal direction of the summoning candy 23 of the external shoji 3 is foamed so as to close the gap between the opposing shoji 2 and the summoning candy 23.

  Thus, by providing the heating foam material 35 in the windshield member 30, the heating foam material 35 will be arrange | positioned between the windshield member 30 and the upper frame 10, and this heating foam material 35 will be carried out at the time of a fire outbreak. By foaming, at the upper end of the summing part of the opening device, the gap between the inner sward 2 and the outer sward 3 and the gap between the summoning cage 23 and the upper frame 10 are closed, and The upper end portion of the hollow portion 23a of the external shoji 3 can be closed. About the clearance gap between the inner shoji 2 and the outer shoji 3, the heating foam material 27 which is provided in the outer shoji 3 and functions as an obstruction member and the heating foam material 35 of the windshield member 30 become continuous. The closed state at the mating portion can be continued up to the upper end portion to increase the fireproof performance. In addition, by closing the upper ends of the hollow portions 23a of the inner and outer children 2 and 3, it is possible to prevent indoor and outdoor communication through the hollow portions 23a, and prevent fire and heat from penetrating. Can be high.

  Further, on the upper side of the opening device, the upper airtight material 20b provided on the upper collar 20 is formed of a material that hardens when heated. A gap is not formed between the shojis 2 and 3 and the frame 1 along the longitudinal direction of the flange 20. As shown in FIG. 10, the clogging of the gap by the upper airtight material 20b continues with the heated foam material 35 foamed in the summing portion, so that the shoji 2, 3 is extended from the summing portion to the upper side of the opening device. And the gap between the frame 1 can be continuously closed. As a configuration for closing the space between the frame 1 and the shoji 2 and 3 on the upper surface of the opening device in the event of a fire, a heating foam material is disposed in the guide groove 20a instead of the upper airtight material 20b. Also good. In this case, when the fire occurs, the heating foam material of the guide groove 20a and the heating foam material 35 of the windshield member 30 respectively foam, so that the gap between the frame body 1 and the shoji 2 and 3 can be closed continuously. .

  In the present embodiment, the closing member that closes the gap between the inner and outer children 2 and 3 along the longitudinal direction is composed of the heating foam material 27 provided on the outer obstacle 3. May be configured. For example, by forming the airtight material 25 provided in the inner shredder 2 with a material that hardens when heated, the airtight material 25 remains without melting in the event of a fire. It is possible to function as a closing member that closes the gaps along the longitudinal direction. In addition, the smoke return part 26 of the inner shoji 2 and the smoke return part 26 of the outer shoji 3 are formed in such a length that can maintain the facing state even in the event of a fire, so that the smoke return part 26 functions as a blocking member. You can also.

  In FIG. 12, the disassembled perspective view of the windshield member 30 at the time of changing the structure of the airtight piece 32 is shown. As the airtight piece 32, a sponge-like member that foams when heated can be used, and the airtight piece and the heated foam material can be formed of the same member. In this case, it is not necessary to dispose the heating foam material 35 on the flat surface portion 31e of the main body 31, and the airtight piece 32 is placed directly on the flat surface portion 31e and disposed between the inner peripheral surface 10a of the upper frame 10. . Even in this case, the airtight piece 32 foams in the event of a fire, and as shown in FIGS. 10 and 11, the upper end of the summing portion of the opening device is closed, and the gap between the inner and outer shojis 2 and 3 is closed. While closing, the upper end part of the hollow part 23a of the inner shoji 2 and the outer shoji 3 can be obstruct | occluded.

  Next, the windshield member 40 of a 2nd form is demonstrated. In FIG. 13, the disassembled perspective view of the windshield member 40 of a 2nd form is shown. As shown in this figure, the windshield member 40 according to the second embodiment includes a main body portion 41 attached to the upper frame 10 and an airtight piece 42 attached to the main body portion 41. Both the main body 41 and the airtight piece 42 are formed of a resin material.

  The main body 41 is formed with a fixing hole 41d for fixing the airtight piece 42 at an intermediate position in the longitudinal direction. In addition, a heating foam material 45 is disposed on the upper surface side around the fixed hole 41d. The configuration other than the portion for fixing the airtight piece 42 of the main body 41 is the same as that of the main body 31 of the windshield member 30 of the first embodiment.

  The airtight piece 42 has a plurality of fin portions 42b formed on the lower surface side of the piece main body 42a. A fixing portion 42 c that engages with the fixing hole 41 d of the main body portion 41 is formed on the upper surface side of the airtight piece 42, and a heating foam material 45 is disposed on both sides. The airtight piece 42 includes a piece main body 42a and a fin portion 42b. The fin portions 42b are plate members that are suspended from the lower surface side of the piece main body 42a and have elasticity that extends in the expectation direction, and a plurality of fin portions 42b are arranged at predetermined intervals in the find direction. The fin portion 42 b comes into contact with the upper end portions of the inner and outer obstacles 2 and 3 while being elastically deformed so that no gap is generated between the frame 1, the inner and outer obstacles 2, and 3.

  In FIG. 14, the perspective view of the windshield member 40 is shown. As shown in this figure, the windshield member 40 is configured by integrating an airtight piece 42 into the main body 41. And the heating foam material 45 will be arrange | positioned on the upper surface.

  FIG. 15 shows an enlarged vertical sectional view of the upper part in the vicinity of the summing portion of the inner and outer shoji having the windshield member 40. As shown in this figure, the fin part 42b formed in the airtight piece 42 of the windshield member 40 is in contact with the upper end portions of the inner and outer shojis 2 and 3, and between the frame 1 and the inner and outer shojis 2 and 3. So that there is no gap. Further, the heated foam material 45 is held by the windshield member 40.

  In FIG. 16, the front view showing the relationship between the upper frame 10, the windshield member 40, and the summoning ridge 23 is shown. As shown in this figure, the fin part 42 b of the windshield member 40 abuts against the upper end part of the summoning bowl 23. Moreover, the heating foam material 45 provided in the windshield member 40 is arrange | positioned so that the hollow part 23a of the summoning bowl 23 may be opposed.

  In FIG. 17, the front view showing the relationship between the upper frame 10 at the time of a fire outbreak and the summoning bowl 23 is shown. As shown in this figure, even in the windbreak member 40 of the second form, the main body 41 and the airtight piece 42 are melted in the event of a fire, but the heating foam 45 foams, so that the summoning bowl 23 In addition, the upper end of the hollow portion 23a can be closed, and the region between the summoning cage 23 of the inner shy hand 2 and the summoning cage 23 of the outer shingle 3 can be closed. As a result, as in the case of the windshield member 30 of the first embodiment, the gap between the inner sward 2 and the outer sward 3 and the gap between the summoning cage 23 and the upper frame 10 are blocked in the summing portion. The upper end portions of the hollow portions 23a of the inner and outer children 2 and 3 can be closed to increase the fireproof performance.

  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.

DESCRIPTION OF SYMBOLS 1 Frame 2 Inner shovel 3 Outer shovel 4 Housing 5 Panel body 10 Upper frame 10a Inner peripheral surface 10b Upper inner rail part 10c Upper outer rail part 11 Lower frame 12 Vertical frame 20 Upper collar 21 Lower collar 22 Frame side longitudinal collar 23 Summoning bowl 23a Hollow part 27 Heating foam material 30 Windshield member 31 Main body part 31e Flat part 32 Airtight piece 35 Heating foam material 40 Windshield member 41 Main body part 42 Airtight piece 45 Heating foam material

Claims (8)

In the opening device in which the inner and outer shojis are stored in the frame provided in the building opening, and the upper frame forming the frame is formed with the upper rail portion along the longitudinal direction,
The upper frame has a windshield member at a portion facing the summoning portion of the summoning bowl that constitutes the inner and outer shoji, and a heating foam material is disposed between the windshield member and the upper frame. An opening device characterized by the above.   The windshield member has a main body portion attached to the upper frame and an airtight piece provided on the main body portion, and the heating foam is provided on the airtight piece or the main body portion. The opening device according to claim 1.   The main body portion has a flat surface portion with which the upper end portion of the inner and outer shoji can contact, and the airtight piece made of a foam material is provided between the flat surface portion and the inner peripheral surface of the upper frame. The opening device according to claim 2.   The opening device according to claim 2 or 3, wherein the heating foam material is the airtight piece arranged between the windshield member and an upper frame.   3. The opening device according to claim 2, wherein the airtight piece has a fin portion that can come into contact with an upper end portion of the internal and external shoji, and holds the heating foam material at least above the fin portion. .   The main body portion includes an engaging portion that can be engaged with the upper frame, and a locking portion that is provided at one end of the main body portion and that can adjust a distance between the upper end portion of the internal and external shoji. The opening part apparatus of any one of 2-5.   The summoning bowl has a hollow portion along the longitudinal direction, the hollow portion is disposed so as to straddle the upper rail portion, and the heating foam is disposed so as to face the hollow portion. The opening part apparatus of any one of Claims 1-6 characterized by the above-mentioned.   8. A blocking member is provided between the inner heel summoning candy and the outer pelvic summoning candy along the longitudinal direction between the summoning heels in the event of a fire. The opening part apparatus of any one of.

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