Smoke proof wall

Abstract

To provide a smoke barrier in which tension adjustment of a sheet material attached to vertical frames and horizontal frames can be performed in two orthogonal directions.SOLUTION: A smoke barrier is attached to a ceiling, and comprises a pair of vertical frames, a pair of horizontal frames, a sheet material attached to the vertical frames and the horizontal frames, connection members connected to each of the vertical frames and the horizontal frames adjacent to each other, vertical frame position adjustment means for advancing or retreating with respect to the connection members to displace the vertical frames in a vertical direction, and horizontal frame position adjustment means for advancing or retreating with respect to the connection members to displace the horizontal frames in a horizontal direction.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a hanging smoke barrier. [Background technology]

[0002] Smoke barriers are installed to prevent the spread of smoke in the event of a fire and ensure evacuation time. Traditionally, most of them were made of glass, but in recent years, secondary disasters caused by falling glass have become an issue, so the use of smoke barriers made of resin sheets is increasing.

[0003] In panel-type vertical smoke barriers made of resin sheets, the non-flammable sheet is often attached to a metal frame with double-sided tape, but wrinkles in the sheet may occur vertically or horizontally. Such wrinkles can occur not only due to the precision when the sheet is attached to the panel, but also due to distortion of the building itself in which the panel is installed, or expansion and contraction of the resin sheet or panel due to temperature changes.

[0004] In view of this, for example, Patent Document 1 (JP 2016-77311 A) proposes a mechanism for applying tension to the noncombustible sheet to eliminate wrinkles in the sheet. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2016-77311 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, the above-mentioned Patent Document 1 only adjusts the tension in one direction (horizontal direction) and does not provide a mechanism for adjusting the tension in the other perpendicular direction (vertical direction), so wrinkles are not sufficiently eliminated. In this regard, there is a method of adjusting the tension in the vertical direction using a tension bar in the center, but this is time-consuming and spoils the appearance.

[0007] Therefore, the object of the present invention is to provide a smoke-proof vertical wall that allows easy tension adjustment of sheet material attached to frame materials (vertical frames and horizontal frames) in two perpendicular directions. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention provides: A vertical smoke barrier attached to a ceiling, A pair of opposing vertical frames; A pair of opposing horizontal frames; A sheet material attached to the vertical frame and the horizontal frame; A connecting member connected to each of the adjacent vertical frames and horizontal frames; A vertical frame position adjustment means that moves forward and backward relative to the connecting member and displaces the vertical frame in the vertical direction; A horizontal frame position adjustment means that moves forward and backward relative to the connecting member and displaces the horizontal frame in a horizontal direction; The present invention provides a smoke-proof hanging wall comprising: Here, the connecting member needs to be provided at least in one place.

[0009] In the smoke-proof vertical wall of the present invention having such a configuration, the vertical frame can be displaced vertically and the horizontal frame can be displaced horizontally by simply moving the vertical frame position adjustment means and the horizontal frame position adjustment means forward and backward relative to the connecting members, respectively, which allows the tension of the sheet material to be adjusted in both the up-down and left-right directions. Therefore, it is no longer necessary to accurately attach the sheet material to the vertical and horizontal frames while taking into account the slack of the sheet material, and the sheet material can be easily and quickly attached. Furthermore, since the tension of the sheet material can be adjusted vertically and left-right, it is possible to cut the vertical and horizontal frames on site to adjust their length.

[0010] In the smokeproof vertical wall of the present invention, it is preferable that the vertical frame is connected to the connecting member so as to be vertically displaceable, and the horizontal frame is connected to the connecting member so as to be horizontally displaceable.

[0011] According to the smoke-proof vertical wall of the present invention having such a configuration, the connecting members can be displaced vertically relative to the vertical frames and horizontally relative to the horizontal frames, thereby guiding the direction of displacement of the vertical and horizontal frames and enabling reliable tension adjustment.

[0012] In addition, in the smokeproof vertical wall of the present invention, it is preferable that the vertical frame position adjustment means faces an end of the vertical frame, and the horizontal frame position adjustment means faces an end of the horizontal frame.

[0013] According to the smoke-proof vertical wall of the present invention having such a configuration, the vertical frame position adjustment means faces the end of the vertical frame, and the horizontal frame position adjustment means faces the end of the horizontal frame, so that the vertical frame position adjustment means directly or indirectly presses the end of the vertical frame, and the horizontal frame position adjustment means can directly or indirectly press the end of the horizontal frame, so that the vertical frame position adjustment means and the horizontal frame position adjustment means can have a simple configuration such as a screw, for example.

[0014] In addition, in the smoke-proof vertical wall of the present invention, it is preferable that the wall has a spacer member interposed between at least one end of the vertical frame and the horizontal frame and the connecting member, and capable of abutting against a corresponding position adjustment means of the vertical frame position adjustment means and the horizontal frame position adjustment means.

[0015] According to the smoke barrier of the present invention having such a configuration, the position adjustment means contacts the spacer members, not the vertical and horizontal frames, so there is no need to provide end faces on the vertical and horizontal frames for pressing with the position adjustment means. Therefore, the vertical and horizontal frames can be cut at the desired positions, and the length of the vertical and horizontal frames can be easily adjusted on site.

[0016] In addition, in the smoke-proof vertical wall of the present invention, it is preferable that the spacer members are interposed between the ends of the vertical frames and the ends of the horizontal frames and the connecting members, and are capable of abutting both the vertical frame position adjustment means and the horizontal frame position adjustment means.

[0017] According to the smoke barrier of the present invention having such a configuration, the spacer members can be made common to the vertical and horizontal frames, resulting in good workability.

[0018] Furthermore, in the smoke-proof vertical wall of the present invention, it is preferable that the vertical frame includes a first guide extending vertically, the horizontal frame includes a second guide extending horizontally, and the connecting member includes a first flat plate portion sliding along the first guide, and a second flat plate portion connected to the first flat plate portion and sliding along the second guide.

[0019] According to the smoke-proof vertical wall of the present invention having such a configuration, the sliding direction of the connecting member is restricted to only the vertical and horizontal directions, making it easy to connect and adjust the position of the vertical and horizontal frames.

[0020] In the smokeproof vertical wall of the present invention, it is preferable that the wall further comprises a vertical frame position fixing means for fixing the vertical frame and the connecting member, and a horizontal frame position fixing means for fixing the horizontal frame and the connecting member.

[0021] According to the smoke barrier of the present invention having such a configuration, the vertical and horizontal frames can be reliably fixed at the desired positions. Effect of the Invention

[0022] According to the smoke barrier of the present invention, the tension of the sheet material attached to the vertical and horizontal frames can be adjusted in two perpendicular directions. Therefore, it is no longer necessary to accurately attach the sheet material to the vertical and horizontal frames while taking into account the slack of the sheet material, and the sheet material can be easily and quickly attached. Furthermore, since the tension of the sheet material can be adjusted vertically and horizontally, it is possible to cut the vertical and horizontal frames on site to adjust the length. [Brief description of the drawings]

[0023] [Figure 1] FIG. 1 is a front view of a vertical smoke barrier 1 according to a first embodiment. [Diagram 2]2 is a partially enlarged front view, a side view, and a bottom view of part A in FIG. [Diagram 3] FIG. 2 is a partially enlarged perspective view of part A in FIG. [Figure 4] FIG. 2 is a partially enlarged exploded view of part A in FIG. [Diagram 5] 4 is a schematic diagram of a position adjustment mechanism for the vertical frame 11 and the horizontal frame 12. FIG. [Figure 6] FIG. 11 is a front view of a vertical smoke barrier 2 according to a second embodiment. [Figure 7] 7A and 7B are a partially enlarged front view, a side view, and a bottom view of part B in FIG. 6. [Figure 8] FIG. 7 is a partially enlarged perspective view of part B in FIG. 6. [Figure 9] 2 is a schematic diagram showing the shape of the ends of a vertical frame 21 and a horizontal frame 22. FIG. [Figure 10] 2 is a schematic diagram of a position adjustment mechanism for a vertical frame 21 and a horizontal frame 22. FIG. [Figure 11] FIG. 2 is a front view of a vertical smoke barrier 3 according to a modified example of the first and second embodiments. [Figure 12] 4 is a schematic diagram of a position adjustment mechanism for the vertical frame 31 and the horizontal frame 32. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, a representative embodiment of the smoke barrier wall according to the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to those shown in the drawings. In addition, since each drawing is intended to conceptually explain the present invention, the ratio of size, length, and quantity may be exaggerated or simplified as necessary for easy understanding. Furthermore, in the following description, the same or equivalent parts are given the same reference numerals, and duplicated descriptions may be omitted.

[0025] For ease of explanation, the coordinate axes are defined as follows: the Z axis is taken as the vertical direction, i.e., the direction in which the vertical frames 11, 21, and 31 extend; the X axis is taken as the direction in which the horizontal frames 12, 22, and 32 extend; and the Y axis is taken as a direction perpendicular to the X and Z axes. Note that the Z axis direction may also be referred to as the up-down or vertical direction, the X axis direction as the left-right or horizontal direction, and the Y axis direction as the thickness direction.

[0026] 1. Embodiment 1 The vertical smoke barrier 1 according to the first embodiment will be described with reference to Figs.

[0027] 1-1. Structure of smoke barrier wall 1 The smokeproof vertical wall 1 includes a pair of opposing vertical frames 11 (11A, 11B), a pair of opposing horizontal frames 12 (12A, 12B), a sheet material 13, a connecting member 14, a vertical frame position adjustment means 15, a horizontal frame position adjustment means 16, and a spacer member 17 (see Fig. 1 and Fig. 2(A)). The vertical frames 11A, 11B and the horizontal frames 12A, 12B are combined into a substantially rectangular shape to form a frame material or a frame of the smokeproof vertical wall 1.

[0028] The vertical frame 11 is a member extending substantially vertically (Z-axis direction) and is connected to the connecting member 14 so as to be displaceable in the vertical direction. The vertical frame 11 is an extruded member made of a metal material such as an aluminum alloy, and has a hollow structure (see FIG. 4).

[0029] 2(A) to 2(C), the vertical frame 11 may include a first guide 112 extending in the vertical direction. The first guide 112 guides the connecting member 14 (first flat plate portion 141) along the vertical frame 11. The first guide 112 also plays a role in holding the connecting member 14 at a desired position in the vertical frame 11. In this embodiment, the first guide 112 is configured as a groove or rail provided on the outer surface side of the vertical frame 11 in the lateral direction, but is not limited to this.

[0030] More specifically, the first guide 112 is composed of a pair of hook-shaped members 112A, 112B protruding from the lateral outer surface of the vertical frame 11 (see FIG. 3). The tips (hook parts) of the hook-shaped members 112A, 112B face each other at a predetermined distance apart, and therefore a space for sliding the connecting member 14 is formed between the hook-shaped members 112A, 112B and the main body of the vertical frame 11. In addition, by separating the tips of the hook-shaped members 112A, 112B from each other, the engaging part 145 of the connecting member 14 is exposed to the outside, enabling the engaging part 145 to engage with the vertical frame position fixing means 18.

[0031] Next, the horizontal frame 12 is a member extending in the left-right direction (X-axis direction) and is connected to the connecting member 14 so as to be displaceable in the left-right direction. The horizontal frame 12 is an extruded member made of a metal material such as an aluminum alloy, and has a hollow structure (see FIG. 4).

[0032] 2(A) to 2(C), the horizontal frame 12 may include a second guide 122 extending in the horizontal direction. The second guide 122 guides the connecting member 14 (second flat plate portion 142) along the horizontal frame 12. The second guide 122 also plays a role in holding the connecting member 14 at a desired position in the horizontal frame 12. In this embodiment, the second guide 122 is configured as a groove or rail provided on the outer surface side of the horizontal frame 12 in the vertical direction, but is not limited to this.

[0033] More specifically, the second guide 122 is composed of a pair of hook-shaped members 122A, 122B protruding from the outer surface of the horizontal frame 12 in the vertical direction (see FIG. 3). The tips (hook portions) of the hook-shaped members 122A, 122B face each other at a predetermined distance apart, and therefore a space for sliding the connecting member 14 is formed between the hook-shaped members 122A, 122B and the main body of the horizontal frame 12. In addition, by separating the tips of the hook-shaped members 122A, 122B from each other, an engaging portion 146 of the connecting member 14 is exposed to the outside, enabling the engaging portion 146 to engage with the horizontal frame position fixing means 19.

[0034] Moving on to the explanation of the sheet material 13, the sheet material 13 is attached to the vertical frames 11 and the horizontal frames 12 (see FIG. 1) so as to cover an opening (not shown) formed by the frame materials (vertical frames 11 and horizontal frames 12). The sheet material 13 is non-flammable. The sheet material 13 may also be flexible and may be transparent or translucent. The sheet material 13 is made of a resin material such as, for example, fiber-reinforced synthetic resin, but is not limited to this. The sheet material 13 can be attached to the frame materials with, for example, double-sided tape or the like.

[0035] Next, the connecting member 14 will be described. The connecting members 14 are placed at the corners of the frame material (ends 111 of the vertical frames 11 and ends 121 of the horizontal frames 12 or their vicinity) and are connected to the vertical frames 11 and the horizontal frames 12, respectively (see, for example, Figures 2(A) and 3). Here, the connecting members 14 are provided at all corners of the frame material, but it is not necessary to provide connecting members 14 at all corners as long as tension adjustment is possible in both the up-down and left-right directions.

[0036] The connecting member 14 can be configured as a plate material bent into a substantially L-shape. That is, the connecting member 14 may include a first flat plate portion 141 that extends along the first guide 112 of the vertical frame 11 and slides, and a second flat plate portion 142 that is connected to the first flat plate portion 141 and slides along the second guide 122 of the horizontal frame 12 (see Figs. 3 and 4). The connecting member 14 may be made of a metal material such as an aluminum alloy, but may also be made of other materials such as resin as long as it has the required rigidity and strength.

[0037] The connecting member 14 has engagement portions 143, 144 for engaging with the vertical frame position adjustment means 15 and the horizontal frame position adjustment means 16, respectively. Here, as an example of the engagement portions 143, 144, screw holes for engaging with screws (position adjustment screws) serving as the position adjustment means 15, 16 are formed in the connecting member 14, but the present invention is not limited to this. The engagement portions 143, 144 are provided at positions facing (or facing) the spacer member 17, and enable contact between the vertical frame position adjustment means 15 and the horizontal frame position adjustment means 16 and the spacer member 17 (see FIG. 4).

[0038] The connecting member 14 also has engagement portions 145, 146 for engaging with the vertical frame position fixing means 18 and the horizontal frame position fixing means 19, respectively (see FIG. 3). Here, as an example of the engagement portions 145, 146, screw holes for engaging with screws (position fixing screws) serving as the position fixing means 18, 19 are formed in the connecting member 14, but the present invention is not limited to this. The engagement portions 145, 146 are provided at positions facing (or facing) the vertical frame 11 and the horizontal frame 12, and allow the vertical frame position fixing means 18 and the horizontal frame position fixing means 19 to come into contact with the main bodies of the vertical frame 11 and the horizontal frame 12, respectively.

[0039] The position adjustment means 15 and 16 will now be described. The vertical frame position adjustment means 15 moves forward and backward relative to the connecting member 14, displacing the vertical frame 11 in the vertical direction. In this embodiment, the vertical frame position adjustment means 15 indirectly displaces the vertical frame 11 in the vertical direction by pressing a spacer member 17 interposed between the vertical frame 11 and the vertical frame position adjustment means 15 (see FIG. 3).

[0040] An example of the vertical frame position adjustment means 15 is a screw (position adjustment screw) that advances and retreats while engaging with the engagement portion 143 (screw hole) of the connecting member 14. That is, as the head of the position adjustment screw rotates, the position adjustment screw advances and retreats relative to the connecting member 14 while engaging with the engagement portion 143 (screw hole) of the connecting member 14. The position adjustment screw then displaces the vertical frame 11 in the vertical direction by pressing the spacer member 17 with its tip.

[0041] Furthermore, the horizontal frame position adjustment means 16 advances and retreats relative to the connecting member 14, displacing the horizontal frame 12 in the horizontal direction. In this embodiment, the horizontal frame position adjustment means 16 indirectly displaces the horizontal frame 12 in the horizontal direction by pressing a spacer member 17 interposed between the horizontal frame 12 and the horizontal frame position adjustment means 16 (see FIG. 3).

[0042] An example of the horizontal frame position adjustment means 16 is a screw (position adjustment screw) that advances and retreats while engaging with the engagement portion 144 (screw hole) of the connecting member 14. That is, as the head of the position adjustment screw rotates, the position adjustment screw advances and retreats relative to the connecting member 14 while engaging with the engagement portion 144 (screw hole) of the connecting member 14. The position adjustment screw then displaces the horizontal frame 12 in the lateral direction by pressing the spacer member 17 with its tip.

[0043] Moving on to an explanation of the spacer member 17, the spacer member 17 is a block-shaped member interposed between the end 111 of the vertical frame 11 and the connecting member 14, and between the end 121 of the horizontal frame 12 and the connecting member 14 (see, for example, Figures 3 and 4). Alternatively, the spacer member 17 can be said to be a cover member or a cap member that covers both the end (end face) 111 of the vertical frame 11 and the end (end face) 121 of the horizontal frame 12. Therefore, the spacer member 17 can abut against both the vertical frame position adjustment means 15 and the horizontal frame position adjustment means 16.

[0044] In other words, the vertical and horizontal frames 11 and 12, which are hollow structures, have only a small end surface for the position adjustment screws when viewed from the end portions 111, 121, so in order to increase the contact area with the position adjustment screws, the spacer members 17 are attached to the ends of the vertical and horizontal frames 11 and 12. In other words, the spacer members 17 play the role of receiving pressure from the vertical and horizontal frame position adjustment means 15, 16 and transmitting it to the vertical and horizontal frames 11 and 12.

[0045] 4, the spacer member 17 has insertion portions 171, 172 that are inserted into the vertical frame 11 and the horizontal frame 12. Alternatively, the insertion portions 171, 172 may be said to be protrusions that extend toward the internal spaces of the vertical frame 11 and the horizontal frame 12.

[0046] The vertical width (thickness) of the insertion portion 172 is smaller than the distance between the vertical inner faces of the horizontal frame 12, and therefore the insertion portion 172 has a play (gap) in the vertical direction within the horizontal frame 12. Similarly, the horizontal width (thickness) of the insertion portion 171 is smaller than the distance between the horizontal inner faces of the vertical frame 11, and therefore the insertion portion 171 has a play (gap) in the horizontal direction within the vertical frame 11.

[0047] This play allows the spacer member 17 to be displaced vertically and horizontally in accordance with the advancement and retreat of the vertical frame position adjustment means 15 and the horizontal frame position adjustment means 16. In addition, since the displacement of the insertion parts 171, 172 is restricted to the limited range of the internal space of the vertical frame 11 and the horizontal frame 12, the insertion parts 171, 172 function to prevent the spacer member 17 and the frame material from shifting in position.

[0048] In addition, it is preferable that the outer surface of the spacer member 17 in the Y-axis direction is located at the same position as the outer surface of the frame material in the Y-axis direction or located inside the outer surface of the frame material. By doing so, it is possible to prevent wrinkles from occurring when the spacer member 17 abuts against the sheet material 13 attached to the outer surface of the frame material.

[0049] Moreover, it is preferable that the width (thickness) in the Y-axis direction of the insertion portion 172 is approximately the same as the distance between the inner faces in the Y-axis direction of the horizontal frame 12. Similarly, it is preferable that the width (thickness) in the Y-axis direction of the insertion portion 171 is approximately the same as the distance between the inner faces in the Y-axis direction of the vertical frame 11. In this way, the displacement of the spacer member 17 in the Y-axis direction can be suppressed, and the occurrence of wrinkles in the sheet material 13 due to the abutment of the spacer member 17 can be more suitably prevented.

[0050] The spacer member 17 can be made of any material, such as metal or resin, as long as it has sufficient strength and fireproofing to withstand the pressure from the vertical frame position adjustment means 15 and the horizontal frame position adjustment means 16.

[0051] 3, the smoke-proof vertical wall 1 may include a vertical frame position fixing means 18 for fixing the vertical frame 11 and the connecting member 14 in a desired positional relationship, and a horizontal frame position fixing means 19 for fixing the horizontal frame 12 and the connecting member 14 in a desired positional relationship. An example of the vertical frame position fixing means 18 and the horizontal frame position fixing means 19 is a screw (position fixing screw) that engages with the engagement portions (screw holes) 145, 146 of the connecting member 14.

[0052] The position fixing screw advances and retreats relative to the connecting member 14 by turning its head. As the position fixing screw advances, the tip of the position fixing screw protrudes from the connecting member 14 and contacts the main body of the frame material. As the position fixing screw advances further, the protruding length of the position fixing screw from the connecting member 14 increases, and the connecting member 14 is moved away from the main body of the frame material. At this time, the connecting member 14 is pressed against the inner surfaces of the first and second guides 112, 122 (specifically, the tips of the hook-shaped members 112A, 112B and the hook-shaped members 122A, 122B), and movement (sliding) is restricted. This fixes the connecting member 14 to the frame material, and therefore fixes the positional relationship between the vertical frame 11 and the horizontal frame 12.

[0053] 1-2. Construction of smoke barrier wall 1 The construction of the vertical smoke barrier wall 1 in this embodiment will be described.

[0054] (1) First, the vertical frame 11 and the horizontal frame 12 are connected with the connecting member 14. For example, a spacer member 17 is attached to the vertical frame 11, and a first flat plate portion 141 of the connecting member 14 is inserted into the first guide 112. Next, the second flat plate portion 142 of the connecting member 14 is inserted into the second guide 122, thereby connecting the vertical frame 11 and the horizontal frame 12. The vertical frame 11 and the horizontal frame 12 may be used with the same length as when they were shipped from the factory, or the length may be adjusted (cut, etc.) on-site depending on the dimensions of the installation location, etc.

[0055] (2) The sheet material 13 is attached to the frame material using a fixing means such as double-sided tape. At this time, it is acceptable if some wrinkles occur in the sheet material 13. It is also acceptable if some slack occurs in the sheet material 13.

[0056] (3) The vertical frame position adjustment means 15 and the horizontal frame position adjustment means 16 are advanced and retreated relative to the connecting member 14 to adjust the positions of the vertical frame 11 and the horizontal frame 12 (see FIG. 5). For example, the vertical frame 11 and the horizontal frame 12 are displaced vertically and horizontally by screwing position adjustment screws into screw holes in the connecting member 14 with a screwdriver or the like. This adjusts the tension applied to the sheet material 13, eliminating wrinkles and sagging in the sheet material 13.

[0057] (4) The vertical frame position fixing means 18 and the horizontal frame position fixing means 19 are advanced relative to the connecting member 14 to fix the respective positional relationships between the connecting member 14 and the vertical frames 11 and horizontal frames 12. For example, position fixing screws are screwed into the corresponding screw holes of the connecting member 14 with a screwdriver or the like. This fixes the positional relationship between the vertical frames 11 and horizontal frames 12.

[0058] A plurality of smokeproof vertical walls 1 assembled in this manner are connected by rails, joints, etc., and attached to a ceiling, etc., to install a smokeproof compartment at a desired position.

[0059] 1-3. Effects of the First Embodiment In the first embodiment, the vertical frame 11 can be displaced vertically and the horizontal frame 12 can be displaced horizontally by advancing and retracting the vertical frame position adjustment means 15 and the horizontal frame position adjustment means 16 relative to the connecting member 14. The vertical frame 11 and the horizontal frame 12 can be easily displaced by adjusting position adjustment screws, which are an example of the vertical frame position adjustment means 15 and the horizontal frame position adjustment means 16. This makes it possible to easily adjust the tension of the sheet material 13 in both the up-down and left-right directions, which not only eliminates the need to accurately attach the sheet material 13 to the vertical frames 11 and the horizontal frames 12, but also makes it easy and quick to attach the sheet material 13.

[0060] More specifically, the connecting member 14 is inserted and fitted to the outside of the vertical frame 11 and the horizontal frame 12 (into the first and second guides 112, 122) to position the frame body. In addition, by pushing the spacer member 17 with the vertical and horizontal frame position adjustment means 15, 16, the vertical frame 11 and the horizontal frame 12 are displaced, making it possible to apply appropriate tension to the sheet material 13 in the vertical and horizontal directions.

[0061] In addition, by making it possible to adjust the tension in two directions, it is easy to eliminate wrinkles that occur when the squareness of the corners of the frame body is lost due to variations in the lengths of the vertical frames 11 and horizontal frames 12. This makes it easier to adjust the length (cutting, etc.) at the construction site.

[0062] Furthermore, the spacer members 17 are interposed between the end portions 111 of the vertical frames 11 and the end portions 121 of the horizontal frames 12 and the connecting members 14, and can abut against both the vertical frame position adjustment means 15 and the horizontal frame position adjustment means 16. As a result, the position adjustment means 15, 16 only come into contact with the spacer members 17, eliminating the need to provide contact or pressing surfaces for the position adjustment means 15, 16 on the end faces of the vertical frames 11 and the horizontal frames 12.

[0063] Therefore, the vertical frames 11 and horizontal frames 12 can be cut at desired positions, making it easy to adjust the lengths of the vertical frames 11 and horizontal frames 12 on-site. In addition, the spacer members 17 can be shared between the vertical frames 11 and horizontal frames 12, reducing the number of parts, which leads to reduced manufacturing costs.

[0064] Furthermore, the connecting member 14 slides along the first guide 112 of the vertical frame 11, and also slides along the second guide 122 of the horizontal frame 12. In other words, the sliding direction of the connecting member 14 is restricted to two directions that are substantially perpendicular to each other, making it easy to connect the vertical frame 11 and the horizontal frame 12 and adjust their positions.

[0065] In addition, the vertical frame position fixing means 18 fixes the vertical frame 11 and the connecting member 14, and the horizontal frame position fixing means 19 fixes the horizontal frame 12 and the connecting member 14, so that the vertical frame 11 and the horizontal frame 12 can be fixed in the desired positional relationship.

[0066] 2. Embodiment 2 The vertical smoke barrier 2 according to the second embodiment will be described with reference to Figs.

[0067] 2-1. Composition of smoke barrier wall 2 The smokeproof vertical wall 2 includes a pair of opposing vertical frames 21 (21A, 21B), a pair of opposing horizontal frames 22 (22A, 22B), a sheet material 23, a connecting member 24, a vertical frame position adjusting means 25, a horizontal frame position adjusting means 26, a spacer member 27, a vertical frame position fixing means 28, and a horizontal frame position fixing means 29 (see, for example, Figs. 6 to 8). The main difference from the smokeproof vertical wall 1 according to the first embodiment is the spacer member 27, and therefore, hereinafter, the smokeproof vertical wall 2 will be described with a focus on the spacer member 27.

[0068] 8, the spacer member 27 includes a cap 27A interposed between the end 211 of the vertical frame 21 and the connecting member 24, and a cap 27B interposed between the end 221 of the horizontal frame 22 and the connecting member 24. The cap 27A can abut against the vertical frame position adjustment means 25, and the cap 27B can abut against the horizontal frame position adjustment means 26.

[0069] In this embodiment, the caps 27A, 27B are provided on both the ends 211, 221 of the vertical frame 21 and the horizontal frame 22, but a cap may be provided on only one of the ends 211, 221 of the vertical frame 21 and the horizontal frame 22. In addition, the spacer member 27 may be made of any material, such as a resin material or a metal material, as long as it has the strength to withstand the pressure from the vertical frame position adjustment means 25 and the horizontal frame position adjustment means 26.

[0070] With the use of such a spacer member 27, the end 221 of the horizontal frame 22 faces the first flat plate portion 241 of the connecting member 24 via the cap 27B, while the end 211 of the vertical frame 21 faces the vertical inner surface of the horizontal frame 22 via the cap 27A. In other words, the horizontal frame 22 is interposed between the end 211 and cap 27A of the vertical frame 21 and the second flat plate portion 242 and vertical frame position adjustment means 25 of the connecting member 24.

[0071] In order to enable vertical displacement of the vertical frame 21 in this arrangement (i.e. so that the horizontal frame 22 does not impede the advancement and retreat of the vertical frame position adjustment means 25), a long hole 223 (slit, notch) for inserting the vertical frame position adjustment means 25 is provided at the end 221 of the horizontal frame 22 (see FIG. 9). The long hole 223 is formed to be longer in the horizontal direction than the horizontal length (width) of the vertical frame position adjustment means 25, and also plays a role in enabling displacement of the horizontal frame 22 in conjunction with the advancement and retreat of the horizontal frame position adjustment means 26.

[0072] Alternatively, the vertical frame 21 and the horizontal frame 22 may be arranged in the opposite manner to that described above. In this case, a hole equivalent to the long hole 223 is formed in the end portion 211 of the vertical frame 21.

[0073] 2-2. Construction of smoke barrier wall 2 The construction of the vertical smoke barrier wall 2 will be explained, focusing on the differences from the first embodiment.

[0074] (1) Caps 27A and 27B are attached to ends 211 and 221 of the vertical frame 21 and the horizontal frame 22, respectively. If necessary, the lengths of the vertical frame 21 and the horizontal frame 22 are adjusted in advance.

[0075] (2) The first flat plate portion 241 of the connecting member 24 is inserted into the first guide 212 of the vertical frame 21. Next, the vertical frame 21 and the horizontal frame 22 are assembled while inserting the second flat plate portion 242 of the connecting member 24 into the second guide 222 of the horizontal frame 22. At this time, the end portion 221 (cap 27B) of the horizontal frame 22 having the long hole 223 is brought close to the first flat plate portion 241 of the connecting member 24, and then the end portion 211 (cap 27A) of the vertical frame 21 is brought close to the inner surface of the horizontal frame 22.

[0076] (3) The sheet material 23 is attached to the frame material. At this time, accurate positioning of the sheet material 23 is not required.

[0077] (4) The vertical and horizontal frame position adjustment means 25, 26 are advanced and retreated relative to the connecting member 24 to adjust the positions of the vertical frame 21 and the horizontal frame 22, thereby adjusting the tension applied to the sheet material 23. At this time, the vertical frame position adjustment means 25 can contact the cap 27A through the long hole 223, so that the cap 27A and the vertical frame 21 can be displaced vertically by advancing and retreating the vertical frame position adjustment means 25 (see FIG. 10). In addition, the long hole 223 is formed to be longer in the horizontal direction than the outer diameter of the vertical frame position adjustment means 25, so that the horizontal displacement of the horizontal frame 22 can be ensured.

[0078] 2-3. Effects of the second embodiment The smoke-proof vertical wall 2 according to the second embodiment has the same effects as those of the first embodiment, but in particular, since the vertical and horizontal frame position adjustment means 25, 26 contact only the spacer member 27 (caps 27A, 27B), there is no need to provide the vertical frame 21 and the horizontal frame 22 with a contact surface or pressing surface for the position adjustment means 25, 26. Therefore, the vertical frame 21 and the horizontal frame 22 can be cut at a desired position, and the length of the vertical frame 21 and the horizontal frame 22 can be easily adjusted on-site.

[0079] 3.Reference example The vertical smoke barrier 3 according to the reference examples of the first and second embodiments will be described with reference to Figs.

[0080] The smokeproof vertical wall 3 at least includes a pair of opposing vertical frames 31 (31A, 31B), a pair of opposing horizontal frames 32 (32A, 32B), a sheet material 33, a connecting member 34, a vertical frame position adjustment means 35, and a horizontal frame position adjustment means 36. That is, the smokeproof vertical wall 3 is common to the smokeproof vertical walls 3 according to the first and second embodiments, except that the spacer members 17 and 27 are not included.

[0081] The vertical frame position adjustment means 35 and the horizontal frame position adjustment means 36 directly contact the end 311 of the vertical frame 31 and the end 321 of the horizontal frame 32, and displace the vertical frame 31 and the horizontal frame 32 (see FIG. 12).

[0082] The smokeproof vertical wall 3 can be constructed in the same manner as in the first and second embodiments. However, since the vertical frame 31 and the horizontal frame 32 are hollow members, in this case, the vertical frame position adjustment means 35 and the horizontal frame position adjustment means 36 are appropriately positioned so that they are in reliable contact with the end 311 of the vertical frame 31 and the end 321 of the horizontal frame 32. It is also possible to form the ends of the frame material into a solid shape.

[0083] In this reference example, similarly to the first and second embodiments, the tension of the sheet material 33 can be adjusted in both the vertical and horizontal directions, while the number of parts is reduced by the spacer members 17 and 27, leading to reductions in manufacturing costs and work processes.

[0084] Although typical embodiments of the present invention have been described above, the present invention is not limited to these, and various design modifications are possible. It goes without saying that such design modifications also fall within the technical scope of the present invention. [Explanation of symbols]

[0085] 1,2,3 Smoke-proof hanging wall 11,11A,11B,21,21A,21B,31,31A,31B Vertical frame 12,12A,12B,22,22A,22B,32,32A,32B Horizontal frame 13,23,33 Sheet material 14, 24, 34 Connecting members 15,25,35 Vertical frame position adjustment means 16,26,36 Horizontal frame position adjustment means 17,27 Spacer member 18,28 Vertical frame position fixing means 19,29 Horizontal frame position fixing means

Claims

1. A vertical smoke barrier attached to a ceiling, A pair of opposing vertical frames; A pair of opposing horizontal frames; A sheet material attached to the vertical frame and the horizontal frame; A connecting member connected to each of the adjacent vertical frames and horizontal frames; A vertical frame position adjustment means that moves forward and backward relative to the connecting member and displaces the vertical frame in the vertical direction; A horizontal frame position adjustment means that moves forward and backward relative to the connecting member and displaces the horizontal frame in a horizontal direction; a spacer member interposed between at least one end of the vertical frame and the horizontal frame and the connecting member and capable of contacting a corresponding position adjustment means of the vertical frame position adjustment means and the horizontal frame position adjustment means; A smoke-proof vertical wall comprising:

2. The vertical frame is connected to the connecting member so as to be displaceable in the vertical direction, The horizontal frame is connected to the connecting member so as to be displaceable in the horizontal direction; The smoke barrier according to claim 1,

3. The vertical frame position adjustment means faces the end of the vertical frame, The horizontal frame position adjustment means faces an end of the horizontal frame; The smoke barrier according to claim 1 or 2,

4. the spacer member is interposed between the end of the vertical frame and the end of the horizontal frame and the connecting member, and is capable of contacting both the vertical frame position adjustment means and the horizontal frame position adjustment means; The smoke barrier according to any one of claims 1 to 3,

5. The vertical frame includes a first guide extending in a vertical direction, The horizontal frame includes a second guide extending in a horizontal direction, the connecting member includes a first flat plate portion that slides along the first guide, and a second flat plate portion that is connected to the first flat plate portion and slides along the second guide; The smoke barrier according to any one of claims 1 to 4,

6. A vertical frame position fixing means for fixing the vertical frame and the connecting member; Further comprising a horizontal frame position fixing means for fixing the horizontal frame and the connecting member; The smoke barrier according to any one of claims 1 to 5,

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