JP5173518B2 - Fire shutter device for construction - Google Patents

Description

  The present invention belongs to the technical field of a fire prevention shutter device for buildings provided with a shutter curtain that opens and closes an opening.

  In general, in a shutter device for construction in which the shutter curtain provided in the housing opening is transformed into a fully closed position that closes the opening and a fully open position that opens the opening, the shutter curtain partitions the shutter curtain, thereby There is a fire prevention shutter device that prevents smoke and smoke from entering the fire prevention space formed on one side of the shutter curtain. In this case, when the shutter curtain is, for example, a shutter curtain (panel shutter) configured by connecting a plurality of panel bodies, each panel body is provided with a predetermined plate thickness with front and back plates made of a metal material. The part between the shutter curtain and the housing in the fully closed position, that is, between the shutter curtain and the guide rail that moves and guides the left and right sides of the shutter curtain, the shutter curtain and the housing opening In order to prevent fire and smoke from entering the fire prevention space by sealing the space between the top edge of the shutter and the bottom surface of the shutter curtain and the floor using sealing members. Need to be configured.

As an improvement measure, a first sealing member made of an elastic material is provided as a sealing member at each portion, and a second sealing member that expands at a high temperature is provided. In the case where sealing is performed with a sealing member and the temperature becomes high due to a fire or the like, the second sealing member is thermally expanded to be sealed.
Japanese Patent Laid-Open No. 3-71556

  However, in this thing, it is set as the structure which accommodates the 1st, 2nd sealing member which seals between the lower end part of a shutter curtain, and a floor surface, and a 2nd sealing member inside a 1st sealing member. When the outer first sealing member is melted or burned due to a fire, the inner second sealing member is thermally expanded. For this reason, the first sealing member faces both the fire-generating space and the fire-proofing space partitioned by the shutter curtain, and the fire-generating first sealing member melts or burns Then, there is a problem that the first sealing member on the side of the fire prevention space may be melted or burned, resulting in poor fire prevention performance. Furthermore, when a fire occurs and the shutter curtain becomes high temperature, it is assumed that the shutter curtain itself thermally expands and projects in a curved shape with respect to the space on the fire occurrence side. However, there is a problem that the first sealing member on the side of the fire prevention space that has been melted or burned is left behind on the side, which may cause ignition, and there are problems to be solved by the present invention.

The present invention has been created in view of the above circumstances and has been created for the purpose of solving these problems. The invention of claim 1 is that the shutter curtain provided in the housing opening closes the opening. In an architectural fire-proof shutter device that transforms into a fully-closed position and a fully-opened position that opens the opening, a sealing member that is elastic in the left-right direction and is elastically deformable at the lower end of the shutter curtain, and an elongated shape in the left-right direction The fire-resistant closure body is provided adjacent to the front and back sides of the shutter curtain so that the closure body abuts against the floor surface. In configuring the fireproof performance to be improved by sealing with the fireproof closed body in contact, the closed body is located on one side in the front and back direction, which is the fireproof space side formed by the shutter curtain, Sealed on the other side It is assumed that a material is provided, and the sealing member is configured so as not to protrude to one side of the front and back direction of the closing body in a sealing posture, and is a hollow body in which a gap is formed in the front and back direction, A bent part that is located at the middle part in the vertical direction and protrudes to the other side in the front and back direction, and a sharp part that becomes sharper toward the lower end below the bent part, and the sealing member is based on the bent part It is the fire shutter device for construction which is constituted so that it may be elastically deformed and it may become a fold-like sealing posture .
According to a second aspect of the invention, the sealing member is fire protection building of claim 1, the lower edge portion is formed so as to be located in the front and back direction other side of the center line of the front and back direction thickness of the shutter curtain It is a shutter device.

Since the space in the front and back direction of the shutter curtain is partitioned by the sealing member and the closing body by using the invention of claim 1, the sealing property is reliable, and the fire prevention space can be surely fire-resistant with good fire resistance. Therefore, the fire performance can be improved. Moreover, even if the sealing member melts and burns, it does not affect the fireproof space, and the shutter curtain bends so that the shutter curtain bulges from the fireproof space to the non-fireproof space. Even in such a case, the sealing member is not left on the fire prevention space side, and the fire prevention performance can be further improved. In addition, it is possible to reliably prevent the sealing member from melting and burning on the fire prevention space side, and the fire prevention performance is further improved. Furthermore, the sealing member is transformed into a folded sealing posture, so that sealing performance is ensured, and the sealing member can be reliably prevented from protruding beyond the closing body to the fire-proof space side.
By making it the invention of claim 2 , the transformation of the sealing member into the folded sealing posture is further ensured.

Next, embodiments of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes an overhead type fireproof shutter device for construction (fireproof panel shutter device), and the shutter curtain (door body) 2 constituting the fireproof shutter device for construction 1 is formed in an elongated shape in the left-right direction. The uppermost end panel body 3 positioned at the uppermost end, the lowermost end panel body 4 positioned at the lowermost end, and a plurality of intermediate panel bodies 5 positioned between them are respectively slidably connected. It is configured.

Each of the panel bodies 3, 4 and 5 is made of a metal material and has a predetermined panel thickness H in the front and back direction, and the intermediate panel body 5 has an arcuate outer periphery at the upper edge. A connecting portion 5a having a surface is formed, and a connecting receiving portion that is slidably fitted to the connecting portion 5a at a lower end edge portion so as to be slidable (bendable) in the vertical direction. 5b is formed. Further, at both ends in the left-right direction on the connecting portion 5a side of the intermediate panel body 5, there are respectively proximal ends of the support shafts 6a, which are positioned below the connecting portions 5a and on which the guide rollers 6 are rotatably supported. It is supported.
Further, the uppermost panel body 3 has a connection receiving portion 3 a formed in the same shape as the connection receiving portion 5 b of the intermediate panel body 5 at the lower end edge portion, and an intermediate portion adjacent to the lower end of the uppermost panel body 3. A swingable connecting portion is configured by slidably fitting to the connecting portion 5a of the panel body 5. And the base end part of the spindle 6a by which the guide roller 6 was rotatably supported by the front-end | tip was supported on the back surface of the uppermost end panel body 3 and the right-and-left both ends of the surface set to the fire prevention space side, respectively. Has been.
Further, the lowermost panel body 4 is formed with a connecting portion 4 a formed in the same shape as the connecting portion 5 a of the intermediate panel body 5 at the upper end edge, and is adjacent to the uppermost lower panel body 4. The connecting part 5b is slidably fitted in the connecting receiving part 5b, and the connecting part is swingable. And in the left-right direction both ends by the side of the connection part 4a of the lowest end panel body 4, it is located under the connection part 4a, and the base end part of the spindle 6a by which the guide roller 6 was rotatably supported by the front-end | tip is respectively It is supported. Further, the lowermost panel body 4 is rotatably supported by guide rollers 6 similar to those provided in the connecting portion 6a at both ends in the left-right direction at the lower end portion via a support shaft 6a.

  On the other hand, a pair of left and right guide rails G is provided on each of the left and right sides of the housing opening. Each guide rail G includes a straight vertical rail 7 standing on the side of the opening, and an opening. And a straight horizontal rail 8 provided along the ceiling of the housing located on the back side of the shutter curtain 2 on the fire prevention space side, and a curved R shape connecting the rails 7 and 8 to each other. The rail 9 is provided. The rails 7, 8, and 9 of the guide rail G are formed with guide grooves 7a, 8a, and 9a that are in communication with each other, and the shutter curtain 2 (each panel is provided in each of the guide grooves 7a, 8a, and 9a. The guide rollers 6 provided on the bodies 3, 4, 5) are fitted to receive movement guidance.

  Reference numeral 10 denotes a rotating shaft that is rotatably supported above the opening, and a pair of wire drums 10 a are fitted and fixed to both left and right ends of the rotating shaft 10 so as to rotate integrally with the rotating shaft 10. The free ends of the wires 10b wound around these wire drums 10a are connected to the lowermost panel body 4 constituting the shutter curtain 2. Further, one end portion of the operating arm 11 is connected to the middle portion on the back side of the uppermost panel body 3 so as to be swingable in the vertical direction, and the tip end portion of the operating arm 11 extends above the shutter curtain 2. The moving body 12 is connected to the extended end. On the other hand, an operation rail 13 that is long in the front and back direction is provided on the housing ceiling surface on the side where the horizontal rail 8 is provided, and the moving body 12 is movably provided on the operation rail 13. A driving device 13a is provided at the rear side end, and the moving body 12 is configured to move along the operating rail 13 based on the driving of the driving device 13a.

The shutter curtain 2 is pulled by the operating arm 11 when the moving body 12 moves in the front and back direction based on the driving of the driving device 13a, and moves in a state where the left and right side portions are guided by the guide rail G. It is configured. Thus, the shutter curtain 2 is configured to move between a fully closed posture that is positioned on the vertical rail 7 and closes the opening, and a fully open posture that is positioned on the horizontal rail 8 and opens the opening. When the shutter curtain 2 moves on the R-shaped rail 9 of the guide rail G during the opening / closing movement, the adjacent panel bodies 3, 4, 5 are connected to each other in a bent state with appropriate swing angles. Thus, when the vertical rail 7 and the horizontal rail 8 are moved, the adjacent panel bodies 3, 4, 5 are configured to have a linear posture in which they are linearly connected. Incidentally, the guide roller 6 provided on the uppermost panel body 3 is positioned on the R-shaped rail 9 above the vertical rail 7 in the fully closed posture of the shutter curtain 2. The curtain 2 is configured to open and close smoothly.
The rotating shaft 10 is provided with a balance ammunition machine (not shown) that energizes an accumulating force that balances the load of the shutter curtain 2 when the shutter curtain 2 is closed. It is configured to assist the opening and closing operation.

  On the other hand, the guide rail G for guiding the movement of the shutter curtain 2 is configured to guide the movement of the guide roller 6 protruding from the both side portions of the panel bodies 3, 4, 5. A gap is formed between each panel body 3, 4, 5. For this reason, in order to prevent fire and smoke from entering the fire prevention space formed on the back surface side of the shutter curtain 2 with the shutter curtain 2 in a fully closed posture, the shutter curtain 2 is sealed between the shutter curtain 2 and the housing opening. A stop structure is required, and the following considerations are made.

Between the housing opening and the left and right sides of the shutter curtain 2, a cover body 14 is provided to cover the vertical rail 7 standing on both sides of the opening from the outside in the left-right direction. Are provided by providing a vertical rail sealing unit 15 therebetween.
The cover body 14 is integrally provided over the entire length of the vertical rail 7 in the up-down direction. As shown in FIG. 3A, the cover body 14 is bent by a metal plate material that is a fire-resistant material. It is formed in a U-shaped cross section with a pair of front and back side pieces 14a, 14b provided so as to be laminated on the back side, and each panel body 3, Projections 14c that are close to and opposed to the back surfaces 3b, 4b, and 5c of 4, 5 are formed. The vertical rail sealing unit 15 is provided over substantially the entire length in the vertical direction excluding the upper end of the vertical rail 7, and the surface of the vertical rail 7 is formed by bending a long metal flat plate. A first support piece 15a fixed to the side piece 7b on the side, a second support piece 15b projecting from the edge of the opening side of the first support piece 15a to the surface side, and the second support piece 15b A third support piece 15c that protrudes from the projecting end portion toward the opening and is supported along the back surface of the side piece 14a on the front surface side of the cover body 14, and a back surface from the edge on the opening side of the third support piece 15c. A fourth support piece 15d that protrudes to the side and faces the surfaces 3c, 4c, and 5d of the panel bodies 3, 4, and 5 in proximity is formed. And the base end part 16a of the elongate 1st sealing member 16 comprised with a rubber-like elastic material is fitted by the front-end | tip part of the 4th support piece 15d, and the front-end | tip of the 1st sealing member 16 is fitted. The tongue piece 16b formed on the side is in sliding contact with the surface (3c, 4c, 5d) of the shutter curtain 2 in the fully closed position, so that the housing opening on the surface (3c, 4c, 5d) side of the shutter curtain 2 is It is comprised so that the clearance gap between side parts may be sealed.

  Furthermore, a second sealing member 17 that expands due to high temperature is provided over the entire length of the second support piece 15b on the surface of the vertical rail sealing unit 15 on the opening side of the second support piece 15b. . When the temperature becomes high and the first sealing member 16 falls off or burns, the second sealing member 17 expands, and the second support piece 15b and the fourth support piece 15d It is set to seal between the two. As a result, the first and second sealing members 16 and 17 seal both sides of the housing opening between the cover 14 and the left and right sides of the shutter curtain 2. It is configured so that reliable sealing can be achieved even at high temperatures.

Here, since the shutter curtain 2 that moves the R-shaped rail 9 has a bending posture with a predetermined swing angle, the R-shaped rail 9 includes side pieces that are stacked on the front and back surfaces of the shutter curtain 2. The cover body and the above-described vertical rail sealing unit 15 cannot be provided. For this reason, in the sealing on the left and right sides of the housing opening,
When the temperature becomes high and the first sealing member 16 falls off or burns, a gap is formed in the connecting portion from the upper end of the vertical rail 7 to the R-shaped rail 9, and the sealing performance is impaired. Is assumed. Therefore, in this embodiment, the gap formed above the vertical rail 7 is closed by sealing between the upper end portion of the vertical rail 7 and the uppermost panel body 3 in the fully closed posture. It is configured.
That is, the uppermost end panel body first sealing unit 18 is provided on both the left and right sides of the uppermost end panel body 3 so as to face the second sealing member 17. As shown in FIG. 4, the uppermost panel body first sealing unit 18 is provided over substantially the entire length of the uppermost panel body 3 in the vertical direction, and a long metal flat plate is folded into an L shape. By bending, the fixed piece 18a fixed to the surface 3c of the uppermost panel member 3 and the edge of the fixed piece 18a on the guide rail G side protrude to the surface side, and the vertical rail sealing unit second support A protruding piece 18b that is close to and opposed to the piece 15b is formed, and a second sealing member 17 similar to the above is provided on the surface side of the fixed piece 18a.
When flame or smoke is generated due to a fire or the like, the fourth support piece 15d and the protruding piece 18b prevent the flame and smoke from entering the fire prevention space. 3, the second sealing member 17 of the vertical rail sealing unit second support piece 15 b and the second sealing member 17 of the uppermost panel body first sealing unit fixing piece 18 a are thermally expanded. The vertical rail sealing unit second support piece 15b and the uppermost panel body first sealing unit protruding piece 18b are sealed, and the uppermost panel body first sealing unit fixing piece 18a and the vertical rail are sealed. The sealing unit third support piece 15c (the cover body surface side piece 14a) is sealed, and thus the vertical rail 7 is in a high temperature state where the first sealing member 16 is dropped. From the upper end to the R-shaped rail 9 Gap portion is configured to be securely sealed that.

Further, the sealing at the upper edge of the housing opening and the upper edge of the shutter curtain 2 (upper edge of the uppermost panel body 3) is as shown in FIG. While the upper end body side sealing unit 19 is provided in the upper portion, the uppermost end panel body 3 is provided with the uppermost end panel body second sealing unit 20 so as to be sealed.
The upper end case side sealing unit 19 is provided on the back side over the substantially entire length in the left-right direction of the upper end portion of the case constituting the opening, and by bending a long metal flat plate, A frame fixing piece 19a, a first support piece 19b protruding from the lower end edge of the fixing piece 19a to the back surface side, a protruding piece 19c protruding from the intermediate portion in the vertical direction of the fixing piece 19a to the back surface side, and the protruding piece 19c A second support piece 19d is formed which protrudes upward from the projecting leading edge and is close to and opposed to the surface 3c of the upper end portion of the uppermost panel body 3 of the shutter curtain 2 in the fully closed posture. And the 1st sealing member 16 similar to the above is fixed to the front-end | tip part of the 1st support piece 19b, and the tongue piece part 16b of the 1st sealing member 16 is the upper part of the surface 3c of the uppermost end panel body 3. By being in sliding contact with each other, the gap between the upper end of the housing opening on the surface side of the shutter curtain 2 is sealed.
Further, the second support piece 19d of the upper-end housing-side sealing unit 19 is provided with a second sealing member 17 similar to the above that expands due to a high temperature so as to face the uppermost end panel body 3. Yes.

On the other hand, as shown in FIG. 4, the uppermost end panel body second sealing unit 20 is provided over the uppermost end panel body 3 over substantially the entire length in the left-right direction, and bends a long metal flat plate material. By doing so, the panel body fixing piece 20a fixed to the upper end surface of the uppermost panel body 3 and the shutter curtain 2 are in the fully closed position, so that the second support piece 19d of the upper body casing side sealing unit 19 is provided. A support piece 20b that is positioned above and is opposed to the protruding piece 19c in the vertical direction, and protrudes downward from the edge on the surface side of the support piece 20b. A projecting piece 20c is formed which is close to and opposed to the second support piece 19d and has a phase-like positional relationship. And the 2nd sealing member 17 similar to the above is provided in the lower end surface of the support piece 20b.
And when flame and smoke are generated by the occurrence of a fire, the second support piece 19d and the projecting piece 20c, which are in a phase-like positional relationship, prevent the flame and smoke from entering the fire prevention space and increase the temperature. In this case, the second sealing members 17 provided on the second support piece 19d of the upper-end housing-side sealing unit 19 and the support piece 20b of the uppermost panel second sealing unit 20 are heated. By expanding, the space between the upper end body side sealing unit second support piece 19d and the uppermost panel body 3 is sealed, and the uppermost panel body second sealing unit support piece 20b and the protruding piece 20c are sealed. And the space surrounded by the projecting piece 19c of the upper-end housing-side sealing unit 19 is sealed, and thus the upper end of the housing opening is high even when the first sealing member 16 becomes so hot that it falls off. Sealing at the part is made Is constructed sea urchin.

And this invention is implemented by the sealing in the lower end part of a housing opening part.
As shown in FIGS. 5 and 6, the lowermost panel body 4 is provided with a lower end sealing unit 21 at the lower end. The lower end sealing unit 21 includes a third sealing member 22 (equivalent to a sealing member of the present invention) 22 that is elongated in the left-right direction and elastically deformable, and is elongated in the left-right direction. A metal closing body 23 having a vertical length shorter than the vertical length of the stop member 22 is provided adjacent to the front and back direction.
The closing member 23 constituting the lower end sealing unit 21 is a retaining piece that is retained by a dovetail recess 4e formed on the lower end surface 4d of the lowermost panel body 4 so that the lower part is open. 23a is formed, and a pair of front and back side pieces 23b and 23c are formed extending downward from the retaining piece 23a. A pair of front and back support pieces 23d and 23e projecting in directions close to each other are formed at the lower end edges of the pair of side pieces 23b and 23c, respectively, and a dovetail groove having a lower end opened below the retaining piece 23a. A support recess 23f is formed. Further, a closing piece 23g extending downward is formed on the side piece 23c on the back surface side, and the closing piece 23g is positioned so as to be substantially flush with the back surface 4b of the lowermost panel body 4. It is formed with.

  The said 3rd sealing member 22 is formed in the left-right direction elongate body with the rubber-like elastic material, The hollow shape which has a space | gap in the front-back direction below the narrow neck part 22a of the state dented from the front-back direction Thus, a deformable portion 22b that is elastically deformable is formed. Then, the third sealing member 22 closes the narrow neck portion 22a and fits into the support concave portion 23f of the body 23, and the upper piece portion 22c of the narrow neck portion 22a is engaged with the pair of front and back support pieces 23d and 23e, The third sealing member 22 is configured to be supported by the closing body 23 in a retaining shape. And the 3rd sealing member 22 is located in the up-down direction intermediate part of the deformation | transformation part 22b, and the bending part 22d is formed by protruding a pair of front and back side pieces which comprise the deformation part 22b to the surface side, respectively, and a deformation | transformation part 22b is configured to be easily bent and deformed. Further, the bent portion 22d forming portion of each side piece is formed to be thin, so that the deformable portion 22b is more easily subjected to the bending deformation based on the bent portion 22d. Further, a sharpened portion 22e that is sharper toward the lower end is formed below the bent portion 22d. The lower end edge 22f of the sharpened portion 22e is a center line M of the panel thickness H of the lowermost panel body 4. It is formed so as to be biased toward the surface side. Further, the third sealing member 22 is formed such that the lower end edge 22f protrudes below the lower end edge of the closing piece 23g of the closing body 23 in a natural state where the third sealing member 22 is not elastically deformed. Yes.

When the shutter curtain 2 is closed, the leading edge 22f of the third sealing member 22 protruding downward from the closing piece 23g of the closing body 23 comes into contact with the floor surface in advance, and the closing piece 23g In the fully closed position in contact with the surface, the third sealing member 22 is configured to be elastically deformed by the pressing force from the floor surface to be in the sealed position. The sealing member 22 is set to seal between the lowermost panel body 4 and the floor surface. In this case, the third sealing member 22 melts or burns when the closing member 23 faces the fireproof space formed on the back surface side of the shutter curtain 2 together with the third sealing member 22. Even if it happens, it is configured to be sealed by the closing body 23 and to have excellent fireproof performance.
Further, in this case, the closing body 23 is configured to face the fire prevention space side, and the third sealing member 22 does not ignite on the fire prevention space side. It is configured to improve. In addition, the third sealing member 22 is formed with a thin bent portion 22d which is easily elastically deformed and protrudes to the surface side. The third sealing member 22 is formed with a sharp portion 22e below the bent portion 22d. In the case where the lower end edge 22f is formed to be offset toward the surface side and elastically deforms by contacting the floor surface, as shown in FIG. 6 (B), a folded sealing posture with reference to the bent portion 22d It is set to be elastically deformed. Thus, the front side lower end piece 22g, which is the front side surface of the sharp portion 22e, is deformed along the floor surface in a natural state so that the sealing performance with respect to the floor surface can be improved. Further, the folded sharp portion 22e is dimensioned so that the tip edge 22f does not protrude beyond the closing piece 23g of the closing body 23 to the back surface side, thereby protruding to the fire prevention space side. Even if the third sealing member 22 is configured so as to be able to reliably prevent a problem such as burning, and even if the shutter curtain 2 is bent so as to bulge out toward the space on the fire occurrence side, the third sealing member 22 The stop member 22 is pushed out to the fire occurrence side by the closing body 23 on the fire prevention space side so that there is no problem that the fire prevention performance on the fire prevention space side is reduced.

  In the present embodiment configured as described, the shutter curtain 2 in which the panel bodies 3, 4, and 5 are swingably connected is guided by the guide rail G on which the R-shaped rail 9 is formed, so that the opening can be opened. In the overhead shutter device configured to open and close the part, the lower end portion of the shutter curtain 2 comes into contact with the floor surface in front of the closing body 23 in accordance with the fully closed posture. Therefore, the space between the floor and the floor surface is sealed, so that the sealing between the lower end of the shutter curtain 2 and the floor surface can be ensured. In addition, in this case, since the fire generating space and the fire prevention space are partitioned by both the third sealing member 22 and the closing body 23, the fire prevention space is reliably sealed, and the fire prevention space is reliably provided. It is possible to prevent fire with good fire resistance and improve fire prevention performance.

Thus, in the embodiment of the present invention, the fireproof space is partitioned by the third sealing member 22 and the closing body 23, but the metal closing body is arranged on the fireproof space side. Therefore, even when the third sealing member 22 is melted and burned, the influence is not given to the fireproof space side, and the fireproof performance can be further improved.
Furthermore, even if the shutter curtain 2 is thermally expanded toward the space on the fire occurrence side (non-fire prevention space) and bends, the third sealing member 22 is pushed to the fire occurrence side by the closing piece 23g and fire prevention space. There is no problem left on the side, and fire performance can be further improved.

  In addition, in this case, when the third sealing member 22 is elastically deformed by contact with the floor surface and assumes a sealing posture, the third sealing member 22 does not protrude beyond the blocking piece 23g to the fire prevention space side. It is possible to reliably prevent the three sealing members 22 from causing a fire on the fire prevention space side.

  In addition, in this case, when the third sealing member 22 is brought into contact with the floor surface and transformed into a folded sealing posture, the third sealing member 22 is thin and susceptible to elastic deformation. Since the bent portion 22d is formed and the lower portion of the bent portion is formed in the sharp portion 22e, it becomes easy to change to a folding sealing posture set in advance with the bent portion 22d as a reference. In addition to ensuring the sealing performance, the third sealing member 22 can be reliably prevented from protruding to the back side of the closing piece 23g.

  In addition, since the lower end edge 22f of the third sealing member 22 has a shape that is biased toward the surface side, the transformation to a preset folding-type sealing posture is more reliably performed, and fireproof performance. It is possible to provide a highly reliable fire shutter device with excellent reliability.

It is side surface sectional drawing which notched a part of overhead type fire prevention shutter apparatus for construction. It is side surface sectional drawing which notched a part of shutter curtain. 3A and 3B are a plan sectional view of the vertical rail and a side sectional view of the upper part of the shutter device, respectively. 4A, 4B, and 4C are a front view, a rear view, and a side sectional view of the uppermost panel body, respectively. 5A, 5B, and 5C are a front view, a rear view, and a side cross-sectional view of the lowermost panel body, respectively. 6A and 6B are a side cross-sectional view for explaining the natural state of the third sealing member and a side cross-sectional view for explaining the sealing posture of the third sealing member, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fire prevention shutter apparatus for construction 2 Shutter curtain 3 Uppermost panel body 4 Lowermost panel body 7 Vertical rail 9 R-shaped rail 14 Cover body 15 Vertical rail sealing unit 16 First sealing member 17 Second sealing member 18 Maximum Upper end panel body first sealing unit 19 Upper end case side sealing unit 20 Uppermost end panel body second sealing unit 21 Lower end part sealing unit 22 Third sealing member 22d Bending part 22e Sharpened part 22f Lower end edge 23 Blocking body 23g Blocking piece

Claims (2)

In a fire protection shutter device for buildings where the shutter curtain provided at the opening of the housing transforms into a fully closed position that closes the opening and a fully open position that opens the opening, the shutter curtain has an elongated shape in the left-right direction at the lower end The sealing member that is elastically deformable and the fire-resistant closing body that is long in the left-right direction are provided adjacent to each other in the front and back direction, and the shutter curtain is sealed in a fully closed posture where it contacts the floor surface. When the member has an elastically deformed sealing posture and the fireproof performance is improved by sealing with the fireproof closing member in contact with the floor surface, the closing member is a fireproof space formed by a shutter curtain. It is assumed that a sealing member is provided on the other side of the closing body, and the sealing member does not protrude to one side of the closing body in a sealing posture. Configured as a table A hollow body having a gap formed in the direction, a bent portion that is located at the middle in the vertical direction and protrudes to the other side of the front and back direction, and a sharpened portion that becomes sharper toward the lower end below the bent portion A fireproof shutter device for buildings, which is formed and configured so that the sealing member is elastically deformed with a bent portion as a reference to have a folded sealing posture . The architectural fireproof shutter device according to claim 1 , wherein the sealing member is formed such that a lower end edge portion is positioned on the other side in the front and back direction with respect to the center line of the thickness in the front and back direction of the shutter curtain.

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