JP6675525B2 - Smoke barrier and its installation method - Google Patents

Description

  The present invention relates to a smoke-proof wall installed on a ceiling to prevent diffusion of smoke generated at the time of a fire and a method of installing the same, and more particularly, to a ceiling provided with a flexible non-combustible sheet attached to a frame. The present invention relates to a smoke barrier to be installed and a method of installing the same.

  For example, when a fire occurs inside a building such as an office building or a large store, the fire causes smoke to fill the vicinity of the ceiling. In order to prevent such smoke from being spread over a wide area, a method of installing a smoke-proof hanging wall vertically suspended from a ceiling has conventionally been adopted. Generally, a transparent plate such as a glass plate is used for such a smoke-proof hanging wall so as not to obstruct the view near the ceiling. In addition, when the sheet glass is used, there is a problem that the sheet falls and scatters when it is damaged by an earthquake or the like.

  In consideration of such problems, for example, in Patent Document 1, a box that accommodates a sheet material roll in a form in which a flexible sheet material is wound and includes a slit for extracting the sheet material, A frame member for fixing the sheet material tip arranged to be perpendicular to the ceiling surface at a position spaced from the box, and a guide rail attached to the ceiling surface so as to extend between the box and the frame member. The sheet material is pulled out of the box, the upper side edge of the sheet material is guided by the guide rail, and the front end is fixed to the frame, thereby being stretched between the box and the frame. An arrangement for a smoke-proof hanging wall is disclosed.

JP 2007-29109 A

  In the smoke-proof hanging wall described in Patent Document 1, the sheet material pulled out from the sheet material roll is made of a flexible material such as a glass fiber reinforced resin sheet. Causes a “winding habit” in the winding direction. For this reason, when the draw-out distance from the box to the frame increases, the "winding habit" is present in the intermediate region, so that even if the drawn-out tip of the sheet material is fixed to the frame in the vertical direction. In addition, there is a new problem that the sheet material is bent and the appearance is impaired.

  Regarding this point, in Patent Document 1 described above, in order to suppress the bending and swinging of the sheet material, a structure in which a wire such as a piano wire is stretched between the box and the frame, or a structure in which the wire is attached vertically to the guide rail in the intermediate region. Also disclosed is a configuration in which a swing-preventing member that sandwiches the sheet material is provided. However, all of these configurations are merely means for regulating the direction of bending or swinging, and do not firmly fix the sheet material itself, so that repeated swinging and expansion and contraction due to a difference in temperature are applied. Then, looseness, distortion, and the like occur in the mounting structure of the sheet material.

  Therefore, an object of the present invention is to provide a smoke-proof wall to be mounted on a ceiling and a method for installing the same, which does not cause loosening or distortion in the mounting structure even when a flexible sheet is used. .

  In order to solve the above-mentioned problems, a smoke barrier according to the present invention includes a guide rail attached along a ceiling, a plurality of side frames slidably suspended along the guide rail, and A plurality of non-combustible sheets attached between the side frames, wherein the plurality of non-combustible sheets are attached to the side surfaces of the plurality of side frames, so that tension is applied in the left-right direction. It is characterized in that it is attached in a state where it is placed.

  Also, the method for installing a smoke barrier according to the present invention includes a step of attaching the guide rail along a ceiling, and a step of attaching the guide rail to one of the plurality of side frames. Attaching one end in the left-right direction, attaching one of the side frames to the guide rail, and positioning the other, and attaching one of the side frames to one side surface of the other one of the plurality of side frames. Attaching the other end in the left-right direction of one of the non-combustible sheets, and attaching another one of the side frames to the guide rail, Positioning so as to apply tension to the other side surface of the other one of the side frames; Attaching an end, attaching a second end of the other one of the non-combustible sheets in the left-right direction to one side surface of still another one of the plurality of side frames, Attaching yet another one of the side frames to the guide rail, and positioning the other one of the non-combustible sheets so as to apply a tension in the left-right direction. .

  Further, in the above invention, the plurality of side frames may be configured to include a long side frame that is longer than a length of the plurality of noncombustible sheets in a vertical direction.

  According to this invention, since the left and right ends of the plurality of non-combustible sheets are attached to the plurality of side frames to apply tension, a flexible sheet is used. Also, there is no loosening or distortion in the mounting structure.

It is a side view which shows the outline of the example which specifically installed the smoke barrier by this invention in the room. It is a partial side view showing the outline of the mounting structure of the first smoke barrier according to the first embodiment of the present invention. 3A and 3B are diagrams showing partial details of the mounting structure shown in FIG. 2, wherein FIG. 3A is a cross-sectional view taken along line AA shown in FIG. 1, and FIG. FIG. 3C is a partial front view showing the relationship between the frame and the non-combustible sheet, and FIG. 3C is an enlarged view showing details of a region B1 shown in FIG. 4A and 4B are partial side views schematically showing an operation of attaching a smoke barrier to a ceiling according to the first embodiment, where FIG. 4A is a first stage, FIG. 4B is a second stage, and FIG. Each of the three stages is shown. It is a partial side view showing an outline of a mounting structure of a second smoke barrier according to a second embodiment of the present invention. FIG. 6A is a view showing a partial detail of the mounting structure shown in FIG. 5, and FIG. 6A is a divided view showing the internal structure of the side frame shown in FIG. 5, and FIG. It is the elements on larger scale which show the detail of area | region B2 shown.

  Hereinafter, specific examples of the smoke barrier and the method for installing the same according to the present invention will be described with reference to the drawings.

  FIG. 1 is a side view schematically showing an example in which a smoke barrier according to the present invention is specifically installed in a room. As shown in FIG. 1, a smoke barrier according to the present invention includes, for example, a first smoke barrier 100 and a second smoke barrier installed on a ceiling CE of a living room 10 inside an office building or a large store. It consists of a wall 200. The living room 10 includes, for example, an office desk unit 20 and an entrance / exit door 30 provided in a room surrounded by a floor portion FR, a ceiling portion CE, and a side wall portion WA. , The first smoke barrier 100 and the second smoke barrier 200 are suspended from the ceiling CE.

<Example 1>
FIG. 2 is a partial side view showing the outline of the mounting structure of the first smoke barrier according to the first embodiment of the present invention. FIG. 3 is a view showing partial details of the mounting structure shown in FIG. 2, and FIG. 3A is a cross-sectional view taken along line AA shown in FIG. 1, and FIG. FIG. 3 is a partial front view illustrating a relationship between a side frame and a nonflammable sheet illustrated in FIG. 2, and FIG. 3C is an enlarged view illustrating details of a region B1 illustrated in FIG.

  As illustrated in FIG. 2, the smoke barrier (first smoke barrier) 100 according to the first embodiment includes a guide rail 110 attached along a ceiling CE, and a slidable along the guide rail 110. It includes a plurality of suspended side frames 120 and a plurality of noncombustible sheets 130 attached between the plurality of side frames 120. The plurality of noncombustible sheets 130 are attached to the side surfaces of the plurality of side frames 120 so that tension is applied in the left and right directions.

  As shown in FIG. 3A, the guide rail 110 is a long member having a substantially rectangular cross section made of, for example, an extruded material of an aluminum alloy, and is connected to the upper surface portion 112 and both ends of the upper surface portion 112 in the width direction. And a lower surface portion 116 that protrudes inward in the width direction from the lower ends of the side surface portions 114 in a flange shape. An opening facing up and down in the figure is formed between the opposing lower surfaces 116, and a closed space for receiving the abutting portion 122 c of the side frame 120 and the rolling roller 124 described below is formed inside the guide rail 110. It is formed. In order to attach the side frame 120, it is preferable that the guide rail 110 be detachably divided at the center line of the upper surface 112 shown in FIG.

  As shown in FIG. 3A, the side frame 120 includes a main body 122 that is a pair of plate-like members, and a rolling roller 124 that is provided to pass through an abutting portion 122c at an upper end of the main body 122. And a holding member 126 that is housed in a plane in which the pair of main bodies 122 are opposed to each other. The main body 122 has, at least on both sides thereof, a thin portion (opening) 122a through which the non-combustible sheet 130 is inserted, and two pairs of main bodies 122 formed in the longitudinal direction inside the opposing surfaces. A groove portion 122b and an abutting portion 122c located at the upper end thereof and in which opposing surfaces contact each other are formed. A holding member 126 having appropriate rigidity and elasticity such as rubber is accommodated in the two grooves 122b. Here, as shown in FIG. 3C, the holding member 126 is formed to be slightly larger than the depth of the groove 122b (that is, to protrude toward the thin portion 122a where one surface is open). The holding member 126 may be formed to have substantially the same length as the length of the groove 122b in the longitudinal direction, or may be arranged so as to be divided into a plurality of portions (in FIG. The case where the holding member 126 is arranged is illustrated).

  The noncombustible sheet 130 is a flexible, colorless and transparent sheet material, for example, a sheet material obtained by impregnating a glass fiber fabric woven with glass fibers with a colorless and transparent resin material. Here, examples of suitable glass fibers include glass fibers having high transparency such as non-alkali glass fibers and high-strength glass fibers. Examples of suitable resin materials include materials having both heat resistance and mechanical strength, such as vinyl ester resins, unsaturated polyester resins, and epoxy resins.

  When the noncombustible sheet 130 is attached, as shown in FIG. 3B, the noncombustible sheet 130 is attached to the surface (contact surface) of the sandwiching member 126 housed in one groove 122b formed in one main body 122. In a state where one end in the left-right direction is placed, the other opposing main body 122 is overlapped and fixed. At this time, the superposed main body 122 may be fixed by a fastening member (bolt or the like) not shown. Then, as shown in FIG. 3 (c), since the contact surfaces of the opposing holding members 126 protrude into the thin portions 122a that open in a slit shape, the noncombustible sheet 130 sandwiched between them is The pinching force P is received from the contact surfaces on the front and back sides, and strong holding and fixing can be performed. In this state, after the rolling roller 124 is inserted through the butting portion 122c, the side frame 120 is attached to the guide rail 110.

  4A and 4B are partial side views schematically showing an operation of attaching the smoke barrier to the ceiling according to the first embodiment. FIG. 4A is a first stage, FIG. 4B is a second stage, and FIG. c) shows the third stage, respectively. To attach the first smoke barrier 100 to the ceiling CE, first, as shown in FIG. 4A, a guide rail 110 is attached along the ceiling CE. Subsequently, one end in the left-right direction of the first noncombustible sheet 130 is attached to the first side frame 120, and the side frame 120 is attached to the guide rail 110 and positioned and fixed (first stage). At this time, it is preferable to position the first side frame 120 so as not to form a gap between the first side frame 120 and the side wall WA.

  Next, as shown in FIG. 4B, the other end in the left-right direction of the first noncombustible sheet 130 is attached to one side surface of the second side frame 120. Subsequently, the second side frame 120 is attached to the guide rail 110 and positioned and fixed while applying a tensile force F. Thereby, the first noncombustible sheet 130 is firmly fixed in a state where the tension T is applied in the left-right direction. Thereafter, one end in the left-right direction of the second noncombustible sheet 120 is attached to the other side surface of the second side frame 120 (second stage).

  Next, the other end in the left-right direction of the second noncombustible sheet 130 is attached to one side surface of the third side frame 120. Subsequently, as in the case of the second stage, the third side frame 120 is attached to the guide rail, and is positioned and fixed while applying a tensile force F. Thereby, the second noncombustible sheet 130 is firmly fixed in a state where the tension T is also applied to the left and right direction (third stage). Thereafter, each time the number of noncombustible sheets 130 to be attached increases, the operations of the second and third stages are repeated. It is preferable that the side frame 120 to be attached last be positioned so as not to form a gap between the side frame 120 and the side wall WA, as in the first stage.

  With this configuration, the smoke-proof wall 100 according to the first embodiment of the present invention has a structure in which the non-combustible sheet 130 divided into a required length is sandwiched between a plurality of side frames 120 arranged on both right and left sides thereof. Since the side frame 120 is positioned and fixed so as to apply a horizontal tension to the flexible sheet 130, even when a flexible sheet is used, the mounting structure may be loosened or distorted. There is no. In the past, for example, when the sheet material was stretched over the entire width of the room, the non-combustible sheet of the winding body was pulled out only by the necessary length and used integrally, so when a part of the sheet was damaged, Is required to replace the entire required length, whereas according to the smoke barrier 100 of the present invention, it is only necessary to replace only the divided noncombustible sheet 130. The burden of maintenance etc. can be reduced.

<Example 2>
FIG. 5 is a partial side view showing an outline of a mounting structure of a second smoke barrier according to Embodiment 2 of the present invention. FIG. 6 is a view showing a partial detail of the mounting structure shown in FIG. 5, and FIG. 6A is a divided view showing the internal structure of the side frame shown in FIG. FIG. 6B is a partially enlarged view showing details of a region B2 shown in FIG. 5. In the second embodiment, the same or similar components as those of the smoke barrier 100 according to the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals, and the description thereof will not be repeated.

  As illustrated in FIG. 5, the smoke barrier (second smoke barrier) 200 according to the second embodiment includes a ceiling CE having a first ceiling CE1 at a higher position and a ceiling CE1 at a lower position than the first ceiling CE1. And a second ceiling portion CE2 protruding from the second ceiling portion. That is, the second smoke barrier 200 includes a guide rail 110 attached along the ceiling CE1, a plurality of side frames 120 slidably suspended along the guide rail 110, and a guide rail. A plurality of non-combustible sheets 130 attached to the area where the 110 is installed, a guide rail 210 attached along the ceiling CE2, and a plurality of sides slidably suspended along the guide rail 210. It includes a unit frame 220 and a plurality of non-combustible sheets 230 attached to an area where the guide rail 210 is installed. The plurality of noncombustible sheets 130 and 230 are attached to the side surfaces of the plurality of side frames 120 or 220 so that tension is applied in the left and right directions, respectively.

  The guide rail 210 has the same configuration as the guide rail 110 shown in FIG. Although FIG. 5 illustrates an example in which the side frame is not attached to the guide rail 220, when the width of the second ceiling part CE2 is large, an additional side frame is arranged in the intermediate region. You may. The guide rail 210 also has a function of accommodating the upper end of the non-combustible sheet 230 so that no gap is formed between the upper end of the non-combustible sheet 230 and the second ceiling CE2.

  As shown in FIG. 6A, the side frame 220 includes a main body 222 that is a pair of plate-like members, and a rolling roller 224 that is provided so as to penetrate an abutting portion 222c at an upper end of the main body 222. And a holding member 226 housed in a surface where the main body 222 faces. The main body 222 has at least on both sides thereof a thin portion (opening) 222a through which the non-combustible sheet 230 is inserted, and two pairs of longitudinally formed inside the pair of main bodies 122 facing each other. A groove 222b and an abutting portion 222c located at the upper end thereof and in which opposing surfaces contact each other are formed. Here, as shown in FIG. 5, the side frame 220 in the second embodiment is set so that the length in the longitudinal direction is larger than the length in the vertical direction of the non-combustible sheets 130 and 230.

  A holding member 226 similar to that of the first embodiment is accommodated in the two grooves 222b. Here, as shown in FIG. 6A, the holding member 226 is set so that its length in the longitudinal direction is smaller than the length in the longitudinal direction of the groove 222b. Thereby, the holding member 226 can be freely positioned in the longitudinal direction of the groove 222b. Then, as shown in FIG. 6B, in the side frame 220, the holding member 226 housed in the groove 222 b on the first ceiling CE1 side (the upper right in the drawing) is disposed on the upper side, and the non-combustible sheet 130 is placed. The noncombustible sheet 230 is sandwiched and fixed by disposing the sandwiching member 226 accommodated in the groove 222b on the second ceiling CE2 side (upper left side in the drawing) on the lower side.

  With this configuration, the smoke barrier 200 according to the second embodiment of the present invention uses the long side frame 220 that is longer than the vertical length of the non-combustible sheet 130 or 230 in addition to the effects described in the first embodiment. Accordingly, for example, even in a room having a structure in which the ceiling CE has a step, the divided noncombustible sheet 230 can be installed without any gap.

  The embodiments according to the present invention and the modifications based thereon have been described above, but the present invention is not necessarily limited to these examples. Those skilled in the art will also be able to find various alternative embodiments and modifications without departing from the spirit of the invention or the scope of the appended claims.

  As one aspect, in the above-described first and second embodiments, the case where the smoke barriers are arranged on a straight line is illustrated, but the present invention is not limited to this. For example, when the guide rail is bent at 90 ° or an arbitrary angle at the ceiling, the side frames are arranged at the positions of the bent portions of the guide rails, and the distance between the adjacent side frames is determined according to the bending angle. By connecting with an attachment or bending and arranging the non-combustible sheet, it is possible to cope with the arrangement of a smoke barrier that is not on a straight line.

  Further, in the side frame shown in the above-described embodiment, the case where the holding member is formed to be substantially the same as the width of the groove is illustrated by way of example, but for example, an elastic member such as a spring is attached to the side surface of the holding member. By applying a spring force to the inner wall of the groove, auxiliary tension may be applied to the non-combustible sheet. As a result, even after the side frames are positioned and fixed, fine adjustment of the tension on the non-combustible sheet can be performed.

100, 200 Smoke barrier 110, 210 Guide rail 112 Upper surface 114 Side surface 116 Lower surface 120, 220 Side frame 122, 222 Body 122a, 222a Thin wall 122b, 222b Groove 122c, 222c Butt 124, 224 Rolling Rollers 126, 226 Holding members 130, 230 Non-combustible sheet

Claims (4)

A guide rail mounted along the ceiling, a plurality of side frames slidably suspended along the guide rail, and a plurality of non-combustible sheets mounted between the plurality of side frames. A smoke barrier comprising:
The guide rail includes an upper surface portion, side surface portions connected to both ends in the width direction of the upper surface portion, and a lower surface portion that protrudes inward in the width direction from lower ends of these side surface portions,
The side frame includes a main body that is a pair of plate-shaped members, and a rolling roller that is provided to penetrate upper ends of the pair of main bodies,
The plurality of non-combustible sheets are attached to the pair of main body portions of the plurality of side frames so as to be attached in a state where tension is applied in the left-right direction. wall. 2. The smoke barrier according to claim 1, wherein the plurality of side frames include a long side frame longer than a length of the plurality of noncombustible sheets in a vertical direction. 3. A guide rail mounted along the ceiling, a plurality of side frames slidably suspended along the guide rail, and a plurality of non-combustible sheets mounted between the plurality of side frames. A method of installing a smoke barrier that attaches a smoke barrier to a ceiling, including:
The guide rail includes an upper surface portion, side surface portions connected to both ends in the width direction of the upper surface portion, and a lower surface portion that protrudes inward in the width direction from lower ends of these side surface portions,
The side frame includes a main body that is a pair of plate-shaped members, and a rolling roller that is provided to penetrate upper ends of the pair of main bodies,
Attaching the guide rails along the ceiling,
Attaching one end in the left-right direction of one of the plurality of non-combustible sheets to one of the plurality of side frames;
Attaching and positioning one of the side frames to the guide rail;
Attaching the other end in the left-right direction of one of the non-combustible sheets to one side surface of the other one of the plurality of side frames;
Attaching another one of the side frames to the guide rail and positioning one of the non-combustible sheets to apply tension in the left-right direction;
Attaching one end in the left-right direction of the other one of the plurality of non-combustible sheets to the other side surface of the other one of the side frames;
Attaching the other end in the left-right direction of the other one of the non-combustible sheets to one side surface of still another one of the plurality of side frames;
Attaching another one of the side frames to the guide rail, and positioning the other one of the non-combustible sheets so as to apply tension in the left-right direction;
A method that includes The method of claim 3, wherein the plurality of side frames include a long side frame that is longer than a vertical length of the plurality of noncombustible sheets.

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