JP2008173271A - Smoke barrier - Google Patents

Abstract

An object of the present invention is to make it possible to easily attach and install a sheet-shaped smoke barrier without loosening.
A heat-resistant resin sheet 1 is sandwiched between a pair of seat grips 5 having a similar cross-sectional shape in a grip frame 4 whose upper and lower edges are narrowed at the opening side of a U-shaped cross-section, and the seat grip from the bottom surface side of the frame The plate 6 is pressed by a fastening screw and fixed by a pressing force acting between the seat grips. The attachment to the fixed frame 60 is supported on the sealing opening edge 63 in the frame by the grip holder 10.
The steady rest structure is provided with a pair of joiners 25 that sandwich the seat between the steady rest brackets. The square bracket piece 16 at the top of the bracket is inserted through the sealing opening at the bottom of the fixed frame and rotated above the support step 65, and the length of the long side of the bracket piece is larger than the inner wall width of the frame. In this state, the fastening bolt is tightened and the bolt head is brought into contact with the partition wall 66 and fixed.
[Selection] Figure 7

Description

  The present invention relates to a smoke-proof hanging wall that suppresses the flow of smoke and toxic gas generated along a ceiling surface by a structure in which a barrier that blocks an airflow flowing along a ceiling surface of a building is suspended.

According to the Building Standards Law Enforcement Order (Article 126, 2 and 3), for buildings that meet the requirements above a certain standard, ensure evacuation routes in the event of fire, prevent the spread of fire, and facilitate fire fighting activities. In order to plan, it is obliged to install smoke barriers hanging from the ceiling of the building.
The smoke-proof hanging wall is formed of a non-combustible material in terms of its function, and has a structure that is suspended from the ceiling.
Typical examples thereof are shown in FIGS.
The material of the smoke-proof hanging wall is a structure that is arranged vertically and horizontally along the ceiling of the building, and if it is an opaque material, the visual field will be disturbed and a feeling of pressure will be felt. Plates were common.
The support structure of the smoke-proof hanging wall with respect to the ceiling portion is such that a long smoke-proof hanging wall (glass) hanging frame 60 is hung by a frame hanging bolt 71 from a strong beam material such as a field edge receiver above the ceiling. The glass hanging bracket 73 is supported horizontally by supporting and fixing horizontally, and further hanging a smoke-proof hanging wall (glass) hanging bolt 72 from the hanging frame 60 at an appropriate interval.
The glass plate 85 serving as a hanging wall material has a lower edge supported on the glass suspension fitting 73, and the upper edge is accommodated in a sealing opening formed in the length direction on the bottom surface of the suspension frame. The material 75 is applied, and further sealing 76 is performed to seal and prevent appearance of smoke from the gap between the hanging wall material and the hanging frame.
As the glass plate 85 constituting the vertical wall, a reinforcing net or a lined glass plate is used for safety.

By the way, although the smoke-proof hanging wall using a glass material is excellent in transparency, the glass itself is easily damaged even if it is heavy and is reinforced with a net.
The installation work to suspend the smoke-proof hanging wall along the ceiling supports these fairly long and heavy glass plates horizontally and seals them against the suspension frame by screwing by hand. It was necessary to carry out processing, etc., and it required a lot of manpower and man-hours, which caused the cost to increase.
In addition to fires, earthquakes are easily damaged by shaking and deformation of the building, and broken glass pieces can easily cause evacuation. These structures are damaged when the whole building is shaken, such as an earthquake, and the stress is concentrated on the support structure near the ceiling due to the shaking moment generated between the suspended support structure and the glass. There is a risk of falling.
Furthermore, since the bending and twisting generated in the entire building is applied to the glass via a hanging frame, a hanging bolt, a glass hanging bracket, etc., the glass that cannot follow the deformation is damaged and falls.
Such a situation may be caused by a relatively small shake during an earthquake, and there is a risk that glass fragments will fall and scatter, further increasing the damage.

In order to eliminate the disadvantages of such a glass material, a transparent sheet having a structure in which a non-flammable or highly heat-resistant resin sheet is reinforced with glass fibers has been developed in recent years.
These materials are rich in elasticity, lightweight and excellent in flexibility, so that their functions are not damaged even if the support structure of the smoke-proof wall is significantly deformed due to shaking or deformation of the building due to an earthquake, etc. Can be maintained.
These smoke-proof hanging walls made of non-combustible resin sheets are suspended from the ceiling in the same way as conventional smoke-proof hanging walls made of glass if the frame structure is made of an aluminum extruded material. Because it is lightweight, it can be used as it is without attaching any special reinforcement to the mounting structure used in conventional glass materials. By replacing the existing smoke proof wall with a smoke proof wall made of a non-combustible resin sheet, the safety of these can be improved.

However, if such a nonflammable resin sheet is fixed to a rigid frame frame by such a structure, the sheet around the fixing structure to the frame frame is partially distorted or loosened, and the appearance is impaired. Not only was it difficult to fix firmly.
For example, as shown in FIG. 10, when the nonflammable resin sheet 1 is sandwiched between a pair of frame frames 77 and 77 ′ and fastened by a bolt 78 or the like, the fastening pressure of the seat is near the fastening location and its periphery. There is a difference between them, and distortion and slack 15 occur. Further, when the smoke-proof hanging wall composed of the frame body to which the non-combustible sheet is fixed in this manner is attached to the ceiling in a state of hanging from the smoke-proof hanging wall fixing frame 60, the sheet surface is caused by these distortions and slackness. Will appear more intensely.
Furthermore, since these glass fiber reinforced noncombustible resin sheets have a very low thermal expansion coefficient of the glass fiber, the resin layer of the sheet is also restrained by the reinforced glass fiber, and the thermal expansion coefficient of the sheet is extremely low. On the other hand, the frame made of extruded aluminum material that fixes these sheets has a relatively large coefficient of thermal expansion, so when these fixing structures expand and contract with changes in temperature, the sheets may follow the expansion and contraction. Can not.
Even if these dimensional changes are small enough that there is no problem in strength, they appear as bending or slackness of the sheet as described above, and in particular, when fixed to a quadrilateral frame, Deformation along each side is concentrated at the four corners, and as shown in FIG. 11, wrinkles and slacks 15 appear from the four corners to the center of the sheet 1 and appear widely on the sheet surface.
This is because the non-combustible resin sheet does not have the rigidity like a glass plate, and because it is flexible, it can be bent and deformed even by a slight stress. However, deformation due to these loads cannot be avoided.
In particular, the distortion appearing on the sheet surface is considered to be accompanied not only by deformation such as elongation but rather by a bending phenomenon, and is likely to occur even if there is a slight stress difference.
Such deformation appears as distortion on the sheet surface, but it is easily noticeable because it is transparent, and it looks irregular and distorted, especially depending on the viewing direction and lighting conditions. .
In addition, since the sheet used for these smoke barriers has a structure in which fine glass fibers are sandwiched between resin layers whose refractive indexes are adjusted, when a strong load is generated at these tightening points, these encapsulated glass The fibers peel from the resin layer, and the glass fiber bundle appears white. In this case, not only the appearance is deteriorated, but also the strength is not preferable.

Therefore, in order to make the load applied to the fixed portion uniform, an attempt was made to sandwich and bond between these frame frames through an adhesive, but the adhesive was systematically applied to the sheet or frame frame. Since they are not integrally coupled to each other, if they are placed in a state where they are suspended and are always subjected to a load, even if the load itself is small, the bonded portion will be displaced or deformed over time. If a mechanical fastening means such as a bolt is used together to compensate for this, the effect of partial fastening action appears in the same manner as described above, so that distortion is unavoidable.
In addition, these sheet-shaped smoke barriers are lightweight and have a small load on the suspension structure from the ceiling, so it is possible to use an existing suspension structure with high support strength without changing to a new support structure. However, since the conventional support structure is a structure for smoke-proof hanging walls using high-strength and heavy glass, it is generally not suitable for fixing lightweight and sheet-shaped smoke-proof hanging walls. Since it is a complicated mounting structure, workability is poor and the light-weight property of the corner cannot be utilized.
JP 2005-310746 A Japanese Patent No. 3803929

The problem to be solved is that the non-combustible resin sheet reinforced with glass fiber is firmly fixed to the frame material supporting the smoke-proof hanging wall without causing distortion or slack, and without causing deformation over a long period of time. Structure.
In addition, the structure for attaching the smoke-proof hanging wall using these non-combustible sheets to the ceiling is simplified, and the installation and replacement of the smoke-proof hanging wall with respect to the ceiling can be easily performed without requiring manual work.

The present invention relates to a grip frame having a cross-sectional shape in which a U-shaped opening is narrowed, a pair of seat grips having a cross-sectional shape narrowed toward the opening along the cross section of the grip frame, and a sheet-shaped smoke barrier A grip plate abutting from the bottom side of the grip frame with respect to a pair of seat grips held in the U-shaped section of the grip frame with the material sandwiched therebetween, and the opening direction in which the grip frame is narrowed It is a sheet-shaped smoke barrier wall fixing member consisting of means for pressing,
A square bracket piece consisting of a short side and a long side is provided at the top, a bracket consisting of a shaft part penetrating from one end to the bracket piece through a bolt insertion hole formed with an internal screw, and the bolt insertion hole passing through the inside It consists of a bolt that is screwed into the screw and protrudes from the bracket piece,
The bracket piece is accommodated between a smoke-proof hanging wall supporting step portion protruding from the slit of the smoke-proof hanging wall hanging frame and a partition wall thereabove, and the bracket piece is placed on the supporting step portion. , The bolt head projecting from the bracket piece abuts against the partition wall, and fixed between the stepped portion and the partition wall,
In the sheet-like smoke barrier wall steadying fixing member and the fixing member,
The width between the long sides of the quadrilateral bracket piece is made smaller than the interval between the support step portions of the smoke-proof hanging wall hanging frame,
One of the diagonal lines is larger than the width between the inner walls of the frame above the supporting step portion, and the other is a smoke-proof hanging wall steadying fixing member having a width smaller than the width,
Furthermore, the upper and lower edges of the sheet-shaped smoke proof wall material are fixed to the upper and lower frames arranged in the horizontal direction,
The upper frame body is fixed to the ceiling-side smoke suspending wall hanging frame to suspend the smoke proof wall material, and the weight of the lower frame body causes the vertical tension to the sheet-shaped smoke proof wall material. Load
An anti-rest member is arranged in the vertical direction along the vertical edge of the sheet-shaped smoke proof wall material fixed to the fixed frame, and the lower part of the anti-static member is slid in the vertical direction with respect to the lower frame body. By installing it as possible, it prevents wrinkles, etc. that occur in the sheet-shaped smoke-proof wall material due to the difference in thermal expansion between the sheet-shaped smoke-proof wall material and its fixed frame. It is a sheet-shaped smoke-proof hanging wall that is fixed so as not to exist.

The present invention is lightweight and can suspend and fix a non-combustible sheet-shaped smoke-proof wall that is broken like glass and has no danger of debris without causing distortion or sagging,
Moreover, it is possible to easily and easily attach and replace an existing smoke-proof hanging wall not only when newly installed but also by using the structure of a hanging frame as a hanging structure.

In order to fix the smoke-proof wall material using the non-combustible resin sheet reinforced with glass fiber as described above, the fastening force against the sheet material is fastened by tightening and tightening with a rigid aluminum frame material etc. There is a difference between the vicinity and periphery of the fastening means such as bolts and the position away from the fastening means, and a uniform fastening action is not achieved. Further, under such a load, even when these smoke-proof hanging walls are suspended, even a slight difference in the fastening force or load causes partial slackening due to bending, thereby impairing the appearance.
On the other hand, the present inventors have conceived that a fastening force is applied from the entire surface of the frame material that sandwiches and fixes the sheet material, which comes into contact with the sheet material, and have reached the present invention.

The structure is shown in FIGS.
In the figure, 1 is a non-combustible resin sheet, and 4 is a grip frame for fixing the sheet, and has a cross-sectional shape in which the U-shaped opening side is narrowed as shown.
The non-combustible sheet is sandwiched between a pair of seat grips 5 having a cross-sectional shape that narrows toward the opening in accordance with the cross section of the grip frame, and is set in the opening. The seat grip is pressed through the plate toward the opening direction where the grip frame is narrowed by the fastening screw 7 and fixed.
The non-combustible resin sheet is fastened and fixed by a pressing force received from the grip frame between a pair of seat grips, and further in a direction in which the non-combustible resin sheet is pulled out by the weight of the smoke-proof hanging wall. Since the acting force acts as a fastening force between the seat grip and the grip frame, it does not loosen even in a state of hanging for a long time.
The pressing force for tightening these non-combustible resin sheets acts uniformly and uniformly over the entire length of the grip frame from the grip frame to the seat grip, so that the non-combustible resin sheet is not distorted or loosened.
On the surface of the seat grip that contacts the incombustible resin sheet, as shown in the figure, a multi-stage concave groove 8 can be formed over the entire length so as to enhance the clamping force.
The materials of these grip frame, seat grip, and seat grip plate are not particularly limited, but an aluminum extruded material is suitable from the viewpoint of strength, corrosion resistance, workability, and the like.

The smoke-proof hanging wall sheet fixing structure of the present invention can be configured with the same structure on the upper and lower edges of the non-combustible sheet, and can be easily installed and constructed using the existing ceiling-side hanging frame.
FIG. 2 is a cross-sectional view (A) showing a state in which the smoke-proof hanging wall of the present invention is attached using the existing smoke-proof hanging wall material fixing frame 60, and a grip frame fixing structure (B) with respect to the fixing frame. is there.
The smoke-proof hanging wall can be handled in a state in which the upper and lower edges of the non-combustible sheet 1 are fixed to the grip frame 4 and integrated.
The smoke-proof wall material fixing frame 60 in FIG. 2 (A) has a general structure, and is a long aluminum extrusion mold material as in the example shown in FIG. 9, and is shown in these drawings. In general, it is provided with a shelf-like sealing opening edge 63 on both sides of the slit formed on the bottom surface of the frame body, a support step 65 for supporting the glass suspension bolt, and a partition wall 66 between the frame suspension bolt 71. It is.
In order to attach the smoke barrier according to the present invention using such a structure, the grip holder (Japanese Patent Application No. 2006-192636) 10 previously proposed by the present applicant as shown in FIG. The frame 4 is supported on the sealing opening edge 63 on both sides of the slit at the bottom of the smoke-proof wall material fixing frame 60. Of course, other structures may be used as the structure for attaching the smoke-proof hanging wall to the fixed frame. However, in the structure shown in the figure, the attachment is completed by pushing the grip holder into the slit opening from below.
The grip holder 10 is formed in a U-shape that widens toward the end, punches out part of both side surfaces to form an inward claw 12, and a plurality of grooves 11 in the length direction on the side of the grip frame 4. When the two are combined as shown in the figure, the grip holder's claws bite into the groove on the side of the grip frame, and this groove is against the downward force of the figure due to its own weight while the smoke barrier is hanging down. The nail can be bitten and supported.
In this state, when the grip holder and the upper edge of the grip frame are inserted into the slit opening on the bottom surface of the fixed frame 60 and further pushed into the slit opening, the U-shaped lower side of the grip holder is opened slightly. Expands above the slit opening and is supported on the shelf-like sealing opening edge 63.
A smoke stopper 13 made of heat-resistant elastic material is pushed into the space above the slit at the top of the smoke proof wall to seal the gap between the smoke proof wall material fixing frame 60 and the smoke proof wall and fire. Block the smoke of time.

The smoke-proof hanging wall structure formed in this way has a characteristic that the non-combustible resin sheet is lightweight, so that the smoke-proof hanging wall material fixing frame is used as in the case of the smoke-proof hanging wall using glass. It does not require high support strength and does not require a complicated mounting structure.
The grip holder 10 to which the smoke proof wall is attached can obtain sufficient support strength by being arranged at an appropriate interval with respect to the grip frame 4 over the entire length of the smoke proof wall.
As is apparent from the above structure, the seat fixing structure of the present invention is configured so that the upper and lower edges of the sheet-shaped smoke-proof wall material are sandwiched between grip frames, and the grip frame with the upper edge of the sheet fixed is used as a smoke-proof wall. The grip frame, which is fixed to a material fixing frame and suspends the lower edge of the sheet via the sheet, is suspended, and the sheet is not fixed on the side of the smoke proof wall.
Since the non-combustible sheet is fixed by the upper and lower grip frames with a uniform and uniform fastening force, the non-combustible sheet is firmly fixed without causing wrinkles or the like in the vicinity of the grip frame. Furthermore, a constant tension is applied to the sheet in the vertical direction by the weight of the seat grip with the lower edge fixed, and the tensioned state is maintained.
In this state, the effect of horizontal expansion and contraction due to the thermal expansion of the grip frame remains, but since it is only in the two upper and lower sides, the above-described four-corner wrinkles that occur due to concentration and crossing of the flexure and slack do not occur. In addition, since it is maintained in a tensioned state by tension due to the weight of the grip frame that fixes the lower edge portion, wrinkles in the vertical direction are suppressed and hardly noticeable.
In order to maintain these tensions, the weight of the grip frame that fixes the lower edge of the smoke-proof hanging wall can be used, or a weight can be placed inside it, and the weight can be adjusted by making the grip frame thicker. .
As described above, the sheet-shaped smoke-proof hanging wall structure of the present invention can provide sufficient support strength with a simple mechanism for the smoke-proof hanging wall material fixing frame, but is lightweight because it is suspended by its own weight. And in order to prevent it from shaking due to the airflow even though it is indoors, a steady rest structure is also installed as a reinforcement.

3 to 6 show the structure of the smoke-proof hanging wall steady rest according to the present invention.
As shown in FIG. 3, the steady rest structure includes a steady rest bracket 15, a bracket fastening bolt 20, and a pair of steady rest joiners 25 and 25 ′.
A bracket piece 16 is formed at the top of the steady bracket 15, and a bolt insertion hole 17 for passing the steady bracket fastening bolt 20 is formed at the center of the cylindrical shaft body.
The steady rest joiners 25, 25 ′ are fixed by inserting a bracket shaft body in which a bracket hole 26 is formed in one of them and a knurled bark 18 is formed.
4A and 4B show a state in which the bracket fastening bolt 20 is inserted into the bolt insertion hole of the steady rest bracket 15 and screwed, and the bracket 15 through which the fastening bolt is inserted is a bracket hole of one joiner 25. The state inserted and fixed is shown.
In order to attach the anti-sway bracket 15 to the smoke-proof hanging wall material fixing frame 60, the bracket piece 16 of the anti-skid bracket is passed through the slit opening between the smoke-proof hanging wall material support step 65 of the smoke-proof hanging wall material fixing frame 60. It is rotated above it and supported on the smoke-proof wall material support step.
5A and 5B show a mode in which the bracket 15 is attached to the smoke proof wall material fixing frame 60. FIG.
As shown in the upper part of FIG. 5A, the planar shape of the bracket piece 16 at the top of the bracket is a substantially parallelogram, and the width b between the pair of long sides is the sealing opening edge 63 at the bottom of the fixed frame and its Since it is narrower than the distance a between the upper support step portions 65, it can be set by inserting between them as shown.
On the other hand, the width (length) between the short sides is wider than the interval a between the slit openings, the short sides are formed obliquely, and the shorter diagonal line r1 is above the support step 65 in the frame. The longer diagonal line r2 which is smaller than the width d between the inner walls of the frame is larger than the inner wall interval d. When the bracket piece is inserted through the support step slit and rotated above it, as shown in FIG. At the position near the longer diagonal, it is held by the inner wall of the fixed frame and stopped.

In this state, when the bracket fastening bolt 20 is screwed into the internal screw in the bracket body and advanced, the head of the bolt becomes a partition 66 above the smoke-proof wall material support step 65 of the smoke-proof wall material fixing frame 60. When abutted and further screwed, the bolt head and the bracket piece are stretched and fixed between the partition wall 66 and the stepped portion 65.
In this state, as shown in FIG. 4 (B) and FIG. 5 (B), the bracket shaft body is pushed into the bracket hole of the steady rest joiner 25 and is fixed by the knurled 18 parts.
6A and 6B are cross-sectional views of the steady rest joiners 25 and 25 '. FIG. 6A is a plan view of fixing the bracket 15 having the bracket fastening bolt 20 inserted into one steady rest joiner 25 and the other runout. The state where the smoke barrier wall sheet is sandwiched between the stop joiner 25 'and the stop joiner 25' is shown.
(B) is a position where the bracket is not inserted away from the upper and lower edges of the smoke barrier wall sheet, and the side edge of the sheet 1 is sandwiched between the sheet clamping pieces 27 and 27 of the joiners 25 and 25 ′. The joiner 25, 25 'is coupled with the sheet fastening screw 28, and the smoke proof wall sheet 1 is sandwiched. Since the steady rest joiner is lightly clamped so as to allow the non-combustible sheet to move in the vertical direction, the fastening screw 28 does not require a strong fastening force.
In addition to the fastening screws described above, the joiners 25 and 25 ′ can be assembled by being provided with a snap on the joiner 25 ′ side and fitted into a hole formed in the bracket insertion hole of the other joiner 25, and fixed appropriately. Means can be employed.
The lower end of the joiner is not fixed to the grip frame to which the lower edge of the non-combustible sheet is fixed, and the bracket piece 16 'of the second bracket 15' provided with a flat bracket piece at the top is gripped like the upper bracket 15. It is inserted and attached in the gap between the seat grip plate at the bottom of the frame and the bottom. The thickness of the bracket is smaller than the gap, and a play that can slide in the vertical direction is provided between the gaps, so that the expansion and contraction action due to the thermal expansion of the whole steady rest member extends to the nonflammable sheet. To avoid.
The mounting structure of the anti-sway member to the grip frame is not limited to this example, as long as the smoke-proof hanging wall can be restricted so as not to swing only in the direction perpendicular to the seat surface. What is necessary is just to employ | adopt suitably the structure which can be slid, such as combining the shaft body which penetrates this insertion hole to this insertion hole in the other.
Further, in case of an emergency such as a sudden load applied to the grip frame, safety can be maintained by providing a stopper at the lower end of these slide structures and receiving these loads with a steady rest.

FIG. 7 is a partial cutaway view showing the entire smoke-proof hanging wall structure of the present invention in which the smoke-proof hanging wall sheet is attached to the smoke-proof hanging wall material fixing frame 60.
The upper and lower grip frames 4, 4 ′ sandwiching and fixing the smoke barrier wall sheet 1 are basically the same in a structure including the sheet grip 5 and the seat grip plate 6 that sandwich the smoke barrier wall sheet.
In order to attach the smoke proof wall using the non-flammable resin sheet of the present invention to the smoke proof wall fixed frame 60 fixed to the ceiling, the non-flammable sheet 1 is previously fixed to the upper and lower grip frames 4 as described above. The grip holder 10 is set on the upper grip frame 4 at a predetermined interval.
Next, the grip holder is pushed from the slit opening at the bottom of the smoke-proof hanging wall fixing frame 60 and supported on the shelf-like sealing opening edge 63 on both sides of the slit by a spring piece on the lower side of the grip holder.
On the other hand, the steady bracket fastening bolt 10 is inserted into the steady bracket 15, and the bracket piece 16 is rotated above through the slit between the support step portions 65 of the fixed frame 60 so that the long side of the bracket piece abuts the inner wall surface. Next, the bracket fastening bolt 20 is screwed in, and the bolt head is brought into contact with and fixed to the fixed frame partition wall 66.
After the bracket is fixed, the bracket shaft portion is inserted into the bracket hole of the joiner 25 and the knurled portion on the outer peripheral surface of the shaft portion is bitten and fixed, and the side edge portion of the non-combustible sheet is fixed to the seat clamping side 27 of the joiner 25, 25 ′. , 27 and fixed with a sheet fastening screw 28.
The lower end of the joiner fixes a second bracket 15 'similar to the upper end, and a flat bracket piece 16' at the top of the bracket is inserted into the gap between the bottom surface of the grip frame 4 'and the seat grip plate 6, Suppresses vibration in the direction perpendicular to the surface.
At this time, a gap is formed between the bracket piece, the seat grip plate, and the grip plate to allow the thermal expansion of the steady rest member in the vertical direction.
After this, seal around the steady rest joiner and adjust the appearance to complete the construction.

  The smoke-proof hanging wall structure of the present invention can be easily constructed because it is a simple structure, or can be used without replacing the fixing structure with respect to a conventional smoke-proofing wall made of a meshed glass material or the like. It can be easily refurbished to a smoke-proof wall using sheet-shaped smoke-proof wall materials, and is expected to spread widely due to multifaceted usefulness such as fire prevention in earthquake disasters and securing escape routes. Is done.

The state (A) fixed to the sheet-like smoke-proof wall material frame with the smoke-proof wall material fixture of this invention, and fixed structure sectional drawing (B). Sectional drawing (A) of the structure attached to the smoke-proof hanging wall material fixed frame which fixed the smoke-proof hanging wall of this invention to the ceiling side, and the attachment structure with respect to the fixed frame of a smoke-proof hanging wall. The component part figure of the smoke-proof drooping wall steadying structure of this invention. The partial assembly figure (A) and (B) of the smoke-proof drooping wall steadying structure of this invention. The application example which shows the attachment structure (A) and attachment operation (B) of the steady rest of this invention. The upper end (A) and middle part (B) of the steady rest joiner sectional view of the present invention. The smoke-proof hanging wall whole assembly figure of this invention. Example of conventional smoke barrier. The figure which shows the conventional smoke-proof hanging wall fixing structure. The figure which shows the wrinkle generation state in the case of fixing a nonflammable sheet | seat to a frame. A state in which loosening due to thermal expansion occurs when a sheet-shaped smoke barrier is fixed to a quadrilateral frame.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet-like smoke-proof hanging wall material 2 ３ 3 Sheet-like smoke-proof hanging wall material fixed frame 4, 4 'Grip frame 5 Seat grip 6 Seat grip plate 7 Fastening screw 8 Groove 10 Grip holder 13 Smoke stopper 15 Stabilization bracket 15 'Second bracket 16 Bracket top piece 16' Bracket piece 17 Bolt insertion hole 18 Knurling 20 Stabilization bracket fastening bolt 25 Stabilization fixing joiner 26 Bracket hole 27 Seat clamping piece 28 Seat fastening screw 50 Conventional smoke-proof wall material 51 Column 60 Smoke-proof wall material fixing frame 61 Fastening screw 63 Sealing opening edge portion 65 Supporting step portion 66 Partition wall 67 Sealing material 72 Ceiling (finishing material)
71 Frame Suspension Bolt 72 Glass Suspension Bolt 73 Glass Suspension Fitting 75 Backup Material 76 Sealing 77, 77 'Nonflammable Sheet Fixing Frame Material 78 Fastening Screw 80 Glass Support Frame 85 Netted Glass

Claims (4)

A grip frame having a cross-sectional shape with a U-shaped opening narrowed, a pair of seat grips having a cross-sectional shape narrowed toward the opening along the cross section of the grip frame, and a sheet-shaped smoke barrier wall A grip plate abutting from the bottom side of the grip frame against a pair of seat grips accommodated in the U-shaped cross section of the grip frame, and means for pressing the grip plate in the narrowed opening direction of the grip frame ,
A sheet-shaped smoke barrier wall fixing member. A square bracket piece consisting of a short side and a long side is provided at the top, a bracket consisting of a shaft part penetrating from one end to the bracket piece through a bolt insertion hole formed with an internal screw, and the bolt insertion hole passing through the inside It consists of a bolt that is screwed into the screw and protrudes from the bracket piece,
The bracket piece is accommodated between a smoke-proof hanging wall supporting step portion protruding from the slit of the smoke-proof hanging wall hanging frame and a partition wall thereabove, and the bracket piece is placed on the supporting step portion. Abutting a bolt head protruding from the bracket piece to the partition wall and fixing between the stepped portion and the partition wall;
A steady-state fixing member for a sheet-shaped smoke-proof hanging wall. The width between the long sides of the quadrilateral bracket piece is made smaller than the interval between the support step portions of the smoke-proof hanging wall hanging frame,
One of the diagonal lines is larger than the width between the inner walls of the frame above the support step, and the other is smaller than the width;
The steady rest fixing member for smoke-proof hanging walls according to claim 2 characterized by these. Fix the upper and lower edges of the sheet-shaped smoke-proof wall material to the upper and lower frames arranged in the horizontal direction,
The upper frame body is fixed to the ceiling-side smoke suspending wall hanging frame to suspend the smoke proof wall material, and the weight of the lower frame body causes the vertical tension to the sheet-shaped smoke proof wall material. Load
An anti-rest member is arranged in the vertical direction along the vertical edge of the sheet-shaped smoke proof wall material fixed to the fixed frame, and the lower part of the anti-static member is slid in the vertical direction with respect to the lower frame body. Installed as possible,
A sheet-shaped smoke barrier.

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