JP2016059727A - Device for installing smoke-proof hanging wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for installing a smoke-proof hanging wall which is a sheet type, and intensity of a wall surface of an installation place does not have to be considered, and which can quickly and easily install it, and a smoke-proof hanging wall using the same.SOLUTION: A device for installing a smoke-proof hanging wall, which is used for installing a sheet-type smoke-proof hanging wall, comprises: (a) a support frame for supporting an upper side of the sheet; and (b) a sheet holding tool for hooking the sheet and suspending the sheet in a state of holding an upper edge of the sheet, in which (c) the support frame has a cross section in which a space for storing the holding tool is defined, and a lower side is partially opened, and one side of the inside has a groove which is opened upward and extends a longitudinal direction of the support frame, and (d) the holding tool has a grip part for sandwiching and holding the sheet by repulsion of a spring, and a projection part which hooks in the groove of the support frame and is suspended by the support frame.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a device for installing a smoke barrier on a building, and a smoke barrier using the device.

  Buildings with a certain floor area or more, such as buildings, are obligated by the Building Standards Act to install smoke-proof hanging walls that constitute smoke-proof sections. Smoke barriers are used to provide time for people to evacuate from smoke generated in the event of a fire. Conventionally, many glass plates have been lowered from the ceiling to a predetermined height. It was composed by connecting. In many cases, the upper edge of the glass plate is inserted into an elongated opening on the lower side of the upper frame member attached to a support structure such as a beam on the back of the ceiling, and the corners at both ends of the lower edge of the glass plate are It was attached by a method such as placing it on a receiving part of a hanging bracket lowered from the frame member. Many of these types of smoke barriers are not very stable mechanically, and if the corner of one glass plate falls off the receiving part and falls, the next glass plate is in the same state due to its recoil. It becomes easy to cause the situation that the whole smoke-proof hanging wall collapses. In addition, the glass plate is susceptible to cracking when the structure that supports it is distorted. For this reason, most of the conventional smoke barriers are vulnerable to earthquakes, and when an earthquake of a certain level of intensity occurs, the glass plate breaks or drops, or the entire smoke barriers fall and fall from overhead. It causes serious physical dangers such as injury due to the glass pieces that collide with the coming glass plates and the floor surface, and is an obstacle to evacuation. After the end of the earthquake, a large amount of scattered glass pieces , There was a problem that prevented quick recovery work.

  For this reason, smoke-proof hanging walls that use panels that are much lighter and more flexible than glass plates and that are paneled under tension are also used in some areas (patented) Reference 1). As a sheet used for smoke barriers (hereinafter also referred to as “sheet for smoke barriers”), a glass cloth as a base material is impregnated with a synthetic resin (for example, diallyl phthalate resin or unsaturated polyester resin). Incombustible sheets are known in which a resin is further incorporated with silicic acid or other inorganic fillers. A resin-impregnated sheet based on glass cloth is extremely thin and flexible enough to be wound into a roll, but has a property that the Young's modulus is very large and hardly stretched against tension.

  As another smoke-proof wall using these sheets, hold both ends of one sheet cut to a length suitable for the installation location with a specified holder, and pull them horizontally between the walls. The thing of the type maintained by drooping wall shape is known (refer patent document 2). In this case, the member holding the end of the sheet is strongly pulled toward the wall by turning the adjustment bolt on the holder body fixed to the wall surface, thereby generating strong tension on the sheet. A means of maintaining a vertical wall shape is adopted.

  In the case of a sheet-type smoke barrier where the end of the sheet is pulled and the sheet is maintained by tension as described above, when a building is distorted due to shaking, When the resulting tensile stress in the strain direction is added to the original tension, there is a potential problem that the sheet or the holder may be damaged or deformed when excessive tensile stress acts on the sheet. In order to cope with this, by holding the end of the seat in a state where tension is maintained using a spring, even if the structure is distorted due to shaking during an earthquake, the spring is elastically deformed accordingly. Also known is a smoke-proof hanging wall mounting device that relaxes the tensile stress in the sheet and prevents the generation of excessive tensile stress (Patent Document 3).

JP 2008-220508 A JP 2009-060965 A JP2013-000210A

In the smoke-proof hanging wall of the type that holds the end portion of the sheet as described above, the sheet is stretched and maintained in the shape of a hanging wall by applying tension to both ends of the sheet using the wall surface. Since the sheet has its own weight, the longer the center, the easier it is to lower slightly near the center. To counter this, it is necessary to apply a considerable amount of tension. For this reason, the wall must be strong enough to resist the tension. In other words, if the wall surface for securing the end of the sheet while pulling is not strong enough to support the necessary tension via embedded bolts, etc. It cannot be installed, and installation takes extra effort and cost.
Therefore, there is a potential demand for sheet-type smoke barriers that do not substantially matter the strength of the wall at the installation site. In particular, from the viewpoint of disaster prevention, the removal of the huge amount of smoke-proof hanging walls of the old type using the glass plates already provided in many existing buildings, and the sheet type with excellent safety during earthquakes It is important to proceed promptly with the replacement of the smoke barrier, which is a sheet type smoke barrier that does not substantially affect the strength of the wall of the installation site. If it exists, it will be easy to proceed with smooth replacement, which is very useful.
In addition, if the installation work can be done with simple work, it is useful for promoting smooth replacement because it directly leads to a reduction in installation cost.

  Under the above background, the object of the present invention is a sheet-type smoke barrier, which can be installed more easily and quickly than a conventional sheet-type smoke barrier, When applying tension to the sheet, the wall surface facing the end of the sheet only needs to be applied with a very small load compared to the conventional one, and therefore the smoke proofing type does not matter the strength of the wall surface at the installation site. It is providing the apparatus for wall installation, and a smoke-proof hanging wall using the same.

  A further object of the present invention is a smoke proof wall of this type, in which no tension is applied to the wall facing the end of the sheet when applying tension to the sheet at the installation site, and It is to provide a method of installing the smoke barrier in such a manner.

  The inventor of the present invention has a support frame attached along the ceiling surface of a building in a sheet type smoke-proof hanging wall, and has an upwardly extending groove extending in the longitudinal direction. It has been found that the above object can be achieved by supporting the weight of the sheet at its upper edge by a combination of a protrusion that can be hung and a holder having a clip part that can be fixed to the upper edge of the sheet. It has been completed after examination. That is, the present invention provides the following:

1. An apparatus for installing a smoke barrier for installing a sheet type smoke barrier,
(A) a support frame for supporting the upper part of the seat in a state attached along the ceiling surface;
(B) a sheet holder for hanging the sheet by hooking it with the upper edge of the sheet held on the support frame attached along the ceiling surface;
(C) The support frame defines a space in which the holder can be accommodated, and has a cross section in which the lower side is partially opened, and is opened upward on one side of the interior; A groove extending in the longitudinal direction of the support frame;
(D) The holding tool includes a clip portion that holds the sheet sandwiched by the repulsive force of a spring, and a projection portion that is hooked in the groove of the support frame and is suspended by the support frame. Is,
Equipment for installing smoke barriers.
2. The apparatus for installing a smoke barrier according to 1 above, wherein the clip portion of the holder includes a spring and a pressing surface for holding the sheet between the spring.
3. The smoke-proof hanging wall installation device according to 1 or 2, wherein the spring is a leaf spring.
4). The smoke barrier of any one of the above 1 to 3, wherein at least the lower part of the support frame is configured as a cover member that can be attached to and detached from other parts on the side opposite to the side provided with the groove. Wall installation equipment.
5. 4. The apparatus for installing a smoke-proof hanging wall according to 4 above, wherein the cover member has a projecting portion extending inwardly to the vicinity of the surface of the holder inside the cover member.
6). A smoke proof wall comprising the smoke proof wall installation device according to any one of 1 to 5 above and a seat suspended thereby.
7). The smoke-proof hanging wall according to 6 above, wherein a sheet having a length between the terminal end of the sheet and a wall surface facing the wall is suspended from a support frame, and the end of the sheet is An end holding member is fixed along the edge, and an upper end portion and a lower end portion of the end holding member are pulled by respective pulling means, and the pulling means is opposed to the end of the sheet. A smoke-proof hanging wall in which one end is attached to a support member fixed with respect to the ceiling surface between the wall surfaces and the other end is attached to an upper end portion and a lower end portion of the end portion holding member, respectively.
8). 8. The smoke-proof hanging wall according to 7 above, wherein the support member fixed with respect to the ceiling surface is fixed to an end portion of the support frame extending beyond the end of the sheet.
9. The above-described smoke-proof wall of 6 in which the sheet having a length that is spaced from the end of the sheet and the wall surface facing the wall is suspended from a support frame, and tension is applied to the sheet. In the method of installing in a state, the end holding member along the edge of the end is fixed to the sheet, and the ceiling surface is between the end of the sheet and the wall surface facing the end holding member. Providing a fixed support member, wherein the upper end portion and the lower end portion of the end holding member are respectively pulled against the support member.
10. 9. The method according to 9 above, wherein the support member fixed with respect to the ceiling surface is fixed to an end of the support frame extending beyond the end of the sheet.

According to the present invention, a support frame having a required length is attached along the ceiling surface according to the installation location of the smoke proof wall, and is attached to the upper edge of the corresponding length of the smoke proof wall sheet at an appropriate interval. The holding weight is fastened to a clip type, and the weight of the seat is supported by hanging the holding tools in the grooves inside the support frame. For this reason, unlike the conventional case, the tension component required for tensioning the weight so that the vicinity of the center of the sheet does not fall is eliminated. Therefore, when fixing the end of the sheet to the wall surface, it is not necessary to apply a strong tension as in the past, and it is sufficient to apply a very weak tension so that the sheet does not wavy. In addition, since it is practically unnecessary to consider the strength of the wall surface, and the reinforcement work of the wall surface is also unnecessary, it is possible to install a sheet type smoke proof wall regardless of the strength of the wall surface. Further, since the entire length of the seat is first suspended from the support frame, and the end portion of the seat is fixed to the wall surface with a weak tension by an appropriate method, the mounting operation is easy.
For this reason, the apparatus for installing smoke barriers according to the present invention is particularly suitable for a large amount of old type smoke barriers using glass plates provided in many existing buildings. It is possible to replace quickly with a sheet type smoke barrier.

  In particular, when the upper and lower ends of the end of the seat are pulled with respect to a support member fixed with respect to the ceiling surface, the seat can be tensioned without applying any load to the wall surface. .

FIG. 1 is a perspective view showing a part of one embodiment of the smoke-proof hanging wall of the present invention cut out. FIG. 2 is a perspective view of one holder holding a sheet in one embodiment of the smoke barrier according to the present invention. FIG. 3 is an end view of one holder holding a sheet in one embodiment of the smoke barrier according to the present invention. FIG. 4 is a perspective view of the support frame with the cover member removed in one embodiment of the smoke-proof hanging wall of the present invention. FIG. 5 is an end view of the support frame with the cover member removed in one embodiment of the smoke-proof hanging wall of the present invention. FIG. 6 is a perspective view showing a state in which the sheet is suspended by a holding tool that holds the sheet in a state in which the cover member is removed in one embodiment of the smoke-proof hanging wall of the present invention. FIG. 7 is an end view of the smoke barrier wall shown in FIG. FIG. 7 is a side view showing an example of traction of the sheet end in a further embodiment of the smoke barrier according to the present invention.

  In the present invention, the smoke barrier wall sheet is not particularly limited as long as it is a non-combustible sheet suitable for the application. As an example of such a sheet, a resin-impregnated glass fiber sheet is known. A plurality of resin-impregnated glass sheets are commercially available. For example, a woven fabric (glass cloth) made of glass fibers is impregnated with a synthetic resin (diallyl phthalate resin or unsaturated polyester resin), or the impregnated resin is further impregnated. A non-combustible sheet certified by the Minister of Land, Infrastructure, Transport and Tourism that contains silicic acid and other inorganic fillers is on the market, and is one of those that can be suitably used in the present invention.

  In the present invention, the support frame may have bolt holes and other suitable shapes and / or structures for attachment at appropriate positions so that the support frame can be attached along the ceiling surface. At least the lower side of the support frame is partially opened so that the holder holding the upper edge of the sheet can be inserted into the support frame and hooked into the groove. The length of the support frame corresponds to the place where the smoke barriers are to be installed, but it is sufficient to install multiple support frames in a row along the ceiling surface. The length may be appropriate, and may be cut into a suitable length as necessary.

  The support frame defines a sufficient space in which the holder holding the sheet can be accommodated. Inside, there is a groove that opens upward and extends in the longitudinal direction on one side with respect to the longitudinal center plane of the support frame. Since it is sufficient for the groove to be caught by the protrusion of the holding portion, the shape of the cross section is not particularly limited as long as it is such in relation to the protrusion.

  The support frame has a detachable cover member and other parts (main body part) so that the opening can be secured wider when the holder is inserted and hooked into the groove. ) May be included. In that case, the lower part of the support frame other than the cover member (main body part) is open at the bottom with a sufficient width so that the holder can be easily inserted and hooked into the groove. After completion, the cover member is attached to the main body portion of the support frame, and at least a part of the open portion is closed.

  When the support frame is configured to include a cover member, a bolt hole for coupling and separation between the cover member and another part (main body part), and other appropriate shapes and / or easy attachment and detachment It may have a structure.

  The support frame can be usually formed by appropriately selecting and using metals such as various steels including aluminum, aluminum alloy, and stainless steel.

  The holding tool may be of any shape, structure, and dimensions including a clip part that holds the sheet and a protrusion part that fits into a groove provided inside the support frame. Is not particularly limited. In particular, the specific configuration of the clip portion is also arbitrary, and any material that can sandwich and hold a sheet (for example, about 0.5 mm thick) may be used. For this, it is convenient and preferable to use a spring. A clip part can be comprised by the holding surface which opposes a spring and its repulsive force, for example. The pressing surface may be, for example, a contact surface with a spring in a member integral with the protrusion of the holder. Specifically, in a state where the spring exerts a certain repulsive force on such a pressing surface, that is, in a state where the spring is pressed against the pressing surface, the member and the spring are fixed (for example, with rivets, bolts, etc.). ). The shape of the spring is not essential in the present invention and is not particularly limited. An example of a preferred spring is a leaf spring.

  The protrusion of the holder for hooking into the groove inside the support frame may be an integral member that provides the pressing surface as described above, but it also extends the spring of the clip and extends its tip. It can also be configured as.

  By pressing the upper edge of the sheet against the repulsive force of the spring between the spring and the pressing surface in the clip part of the holder, the upper and lower surfaces of the upper edge of the sheet are sandwiched between the spring and the pressing surface. Can be held. Thus, the retainer is attached to the upper edge of the sheet in a secure manner so that it does not accidentally come off.

  After attaching holders to the upper edge of the sheet at appropriate intervals, insert the holders into the support frame from below and hook the protrusions of each holder into the grooves in the support frame. With this simple operation, the seat can be suspended from the support frame over its entire length. The end of the sheet is fixed to the wall surface in advance, for example, using a smoke-proof hanging wall mounting device (for example, Patent Document 3) that maintains tension with a spring (for example, about 1/5 of the conventional one) It can be attached to the wall surface by adjusting the tension to a very weak level), and the gap between the wall surface and the wall surface can be closed by an appropriate method. In addition, since it is necessary to apply very little tension to the end of the sheet, the attachment of the end of the sheet to the wall surface can be performed using any other appropriate device or method.

  In this way, after the entire length of the sheet is suspended from the support frame, the smoke barrier can be quickly installed by a simple operation of attaching the end of the sheet to the wall surface with a weak tension.

  In addition, when the upper and lower ends of the end of the seat are pulled with respect to the support member fixed with respect to the ceiling surface in the vicinity of the wall surface, tension is applied to the seat without applying any load to the wall surface. be able to. In this case, an end holding member is fixed to the end of the sheet along the edge. The end holding member prevents the end of the sheet from bending and provides a coupling site for pulling the upper and lower portions of the end of the sheet from the ceiling surface near the wall surface. Therefore, the specific form is not limited as long as it is suitable for this purpose, but it can be plate-like, and one sheet or a plurality of sheets may be used in combination. The form of the support member on the ceiling surface side is not limited as long as it can support the traction force with respect to the end of the seat. Arbitrary mounting brackets or those obtained by further coupling S cans (one or two) can be mentioned. When the support member of the present invention is used by further fixing the support frame of the smoke barrier to the end of the support frame (or, for example, the frame member fixed to the ceiling side of the old type smoke barrier) Of the frame member). For traction between the support member and the upper and lower parts of the seat edge, a wire or other durable traction force transmission member can be used, and a pair of nuts and bolts attached to the support member and the wire respectively. What is necessary is just to generate and adjust tractive force using a combination, a turnbuckle, etc. suitably. By pulling the upper and lower portions of the sheet end in this way, a desired tension can be generated on the sheet without applying a load to the wall surface. In the present invention, such means for generating and maintaining the traction force is referred to as “traction means”.

  In the present invention, when the support member is referred to as “fixed with respect to the ceiling surface”, it is sufficient if it is fixed with respect to the ceiling surface, and does not necessarily mean that the support member is directly fixed to the ceiling surface itself. Therefore, when the existing frame member for hanging the smoke-proof hanging wall remains fixed on the ceiling surface, the support frame in the present invention is fixed to the old frame member with a bolt or the like. In that case, the length of the support frame in the present invention may be up to the length of the sheet, and the support member may be fixed to the end of the old frame member extending beyond the end of the support frame. Is possible. Further, when the support frame of the smoke proof wall according to the present invention is directly fixed to the ceiling surface, the end of the support frame may be extended to the wall surface, and the support member may be fixed to the end portion.

  In addition, when the support frame includes a removable cover member, it can be hooked while visually confirming the protrusion of the holder in the groove of the support frame with the cover member removed. It becomes easier. The cover member may be attached thereafter.

  The cover member can be configured to have a protruding portion that extends inward to the vicinity of the surface of the holder inside. In that case, when the cover member is attached after the holder is inserted into the support frame and hooked in the groove, the holder is sandwiched between the protruding portion of the cover member and the groove. For this reason, even if an accidental external force is applied, there is no possibility that the holder will be displaced in the transverse direction and come out of the groove, and the suspended state of the seat becomes more stable, which is more preferable. This “protrusion” prevents the protrusion of the holder from coming off the groove and falling off the support frame even when an accidental external force is applied to the smoke barrier. It is intended. Therefore, the term “up to the surface of the holder” for the protrusions means that such a transverse direction of the holder can be used to prevent the protrusion of the holder from coming out of the groove and falling off the edge of the groove. Since it is only necessary to be able to prevent the displacement of the position, the case where it is in contact with the surface of the holder (for example, the surface of the spring) is included.

  Hereinafter, the present invention will be described more specifically with reference to examples. However, it is not intended that the present invention be limited to the examples.

  FIG. 1 is a perspective view showing a part of the smoke barrier wall of the present invention extending long over a certain width. In the figure, reference numeral 1 denotes a support frame attached along the ceiling surface to suspend the seat. The support frame 1 is provided with bolt holes (not shown) spaced from the top surface 2 and can be fixed along the ceiling surface by screwing bolts from below into the ceiling surface. ing. As shown in the figure, the lower side of the support frame 1 is partially open over the entire length, and a nonflammable sheet 3 for the smoke-proof hanging wall hangs down according to gravity from the elongated opening. The support frame 1 defines a space inside, and a groove 5 extending in the longitudinal direction over the entire length of the support frame 1 is formed on one side of the support frame 1. A holder 6 is accommodated inside the support frame 1, and the projection 7 is supported in a fixed position by being hooked in a groove 5 of the support frame 1. The holder 6 includes a bent leaf spring 8, and the leaf spring 8 is formed on a surface (pressing surface) facing the leaf spring side of the plate 9 that is bent into an integral U-shape including the protrusion 7. The plate 9 is fixed to the plate 9 with a repulsive force applied thereto. The leaf spring 8 and the plate 9 are fixed to each other by rivets 10 in both horizontal portions. The support frame 1 of the present embodiment includes a detachable cover member 11, and the cover member 11 includes a protruding portion 12 that extends to the vicinity of the surface of the holder 6 (plate spring 8 thereof).

  FIG. 2 is a perspective view of one holder 6 holding the sheet 3, and FIG. 3 is an end view thereof. The holder 6 is a component arranged on the upper edge of the sheet 3, and a plurality of them are arranged on the upper edge of the sheet at appropriate intervals in the vicinity of both ends and at appropriate positions between them over the length of the sheet. It is attached. The holder 6 can be easily attached by pushing the upper edge of the sheet 3 between the leaf spring 8 and the plate 9 against the pressing force of the leaf spring 8, and is attached at various points. By these holders 6, the sheet 3 can be stably suspended without fear of dropping off.

  FIG. 4 is a perspective view of the support frame 1 with the cover member 10 removed, that is, a main body portion of the support frame 1, and FIG. 5 is an end view thereof. As can be seen from these drawings, in this state, the lower half of one side of the support frame 1 is open at the side and bottom, and through this open part, the seat 3 is suspended to the inside of the support frame 1. Since the holder 6 can be easily inserted and the inside of the main body portion of the support frame 1 is viewed with the eye, the protrusion 7 of the holder 6 can be inserted into the groove 5 of the support frame 1 very much. This makes it easy to attach the sheet to the support frame 1 more quickly.

  FIG. 6 shows a state in which the projection 7 of the holder 6 holding the sheet 3 is inserted into the groove 5 of the support frame 1 and the sheet 3 is suspended by the support frame 1 with the cover member 11 removed. It is a perspective view of a smoke-proof hanging wall. Thereafter, the cover member 11 is attached to the main body portion of the support frame 1 with bolts. By attaching the cover member 11, the protruding portion 12 of the member extends to the vicinity of the surface of the holding member 6 (of the leaf spring 8) in the support frame 1. As a result, the protruding portion 12 substantially prevents lateral displacement of the holding portion 6 in the direction of the cover member 11 because the holding portion 6 has some accidental external force (for example, acceleration of pitching during an earthquake). Even when subjected to the action of pushing up the sheet), it is possible to prevent a situation in which the holder 6 hooked in the groove 5 is detached from the groove 5 and the sheets are dropped off. The state where the cover member 11 is attached is as shown in FIG. 1, and FIG. 7 is an end view of the state.

  FIG. 8 is a side view showing an example of the traction of the sheet end in a further embodiment of the smoke barrier according to the present invention. The frame member F of the old type smoke proof wall is left on the surface of the ceiling C, and the smoke proof wall of the present invention is attached to the frame member F. In the figure, reference numeral 15 denotes an end holding member, which is composed of a plurality of metal plates, and a set of two is sandwiched between the front and back of the end of the sheet and fixed with bolts. The L-shaped metal fitting 18, the bolt hook 19, and the S can 20 constitute a supporting member. The L-shaped metal fitting is fixed to the frame member F with bolts. 22 is a wire, and 23 is a turnbuckle for generating and adjusting a traction force. At the end of the seat 3, traction force is applied to the upper and lower portions by the two turnbuckles 23, whereby horizontal tension (corresponding to the horizontal component of the traction force) is generated in the seat. Although the sheet is stretched by the horizontal tension, the wall W is not subjected to a load for that purpose.

  The present invention does not substantially require the strength of the wall surface facing the end of the sheet at the place where the smoke proof wall is installed and does not matter the strength of the wall surface. Useful for facilitating the rapid replacement of a vast amount of old type smoke barriers in buildings with sheet-type smoke barriers with excellent safety during earthquakes. . Further, it is further useful as a means for making the installation work of the sheet-type smoke proof wall very simple and quick.

1 = support frame 2 = top surface 3 = sheet 5 = groove 6 = holder 7 = projection 8 = leaf spring 9 = plate 10 = rivet 11 = cover member 12 = protrusion 15 = end holding member 18 = L-shape Metal fitting 19 = bolt hook 20 = S can 22 = wire 23 = turn buckle C = ceiling F = frame member W = wall surface

Claims (10)

An apparatus for installing a smoke barrier for installing a sheet type smoke barrier,
(A) a support frame for supporting the upper part of the seat in a state attached along the ceiling surface;
(B) a sheet holder for hanging the sheet by hooking it with the upper edge of the sheet held on the support frame attached along the ceiling surface;
(C) The support frame defines a space in which the holder can be accommodated, and has a cross section in which the lower side is partially opened, and is opened upward on one side of the interior; A groove extending in the longitudinal direction of the support frame;
(D) The holding tool includes a clip portion that holds the sheet sandwiched by the repulsive force of a spring, and a projection portion that is hooked in the groove of the support frame and is suspended by the support frame. Is,
Equipment for installing smoke barriers.   The smoke-proof hanging wall installation device according to claim 1, wherein the clip portion of the holder includes a spring and a pressing surface that holds the sheet between the spring.   The smoke-proof hanging wall installation device according to claim 1 or 2, wherein the spring is a leaf spring.   The smoke-proof device according to any one of claims 1 to 3, wherein at least a lower portion of the support frame is configured as a cover member that can be attached to and detached from another portion on the side opposite to the side having the groove. Vertical wall installation device.   The apparatus for installing a smoke-proof hanging wall according to claim 4, wherein the cover member has a projecting portion extending inwardly to the vicinity of the surface of the holder inside the cover member.   A smoke proof wall comprising the smoke proof wall installation device according to claim 1 and a seat suspended thereby.   The smoke-proof hanging wall according to claim 6, wherein a sheet having a length that is spaced from a terminal end of the sheet and a wall surface facing the wall is suspended from a support frame. An end holding member is fixed along the edge, and an upper end and a lower end of the end holding member are pulled by respective pulling means, and the pulling means is opposed to the end of the sheet. A smoke-proof hanging wall in which one end is attached to a support member fixed with respect to the ceiling surface between the wall surface and the other end is attached to an upper end portion and a lower end portion of the end portion holding member, respectively.   The smoke-proof hanging wall according to claim 7, wherein the support member fixed with respect to the ceiling surface is fixed to an end portion of the support frame extending beyond the end of the sheet.   The smoke-proof hanging wall according to claim 6, wherein the sheet is suspended from the support frame and has a length with a space between the end of the sheet and a wall surface facing the end, and tension is applied to the sheet. In this method, an end holding member along the edge of the end is fixed to the sheet, and the ceiling surface is between the end of the sheet and the wall surface facing the end holding member. Providing a fixed support member with respect to the support member, wherein the upper end portion and the lower end portion of the end holding member are respectively pulled against the support member. The method of claim 9, wherein the support member fixed with respect to the ceiling surface is fixed to an end of the support frame that extends beyond the end of the sheet.

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