Smoke barrier curtain device

Abstract

To provide a smoke barrier device that can prevent damage from earthquake-induced shaking, even when the smoke barrier is installed across the left and right structural elements. [Solution] A smoke-proof curtain wall device installed in the joint between one structural frame and the other structural frame, The smoke barrier consists of one box-shaped smoke barrier wall, one end of which is attached to one structural frame and the other end of which is open; another smoke barrier wall, one end of which is attached to the other structural frame and the other end of which is normally inserted into the other end of the first smoke barrier wall; and a biasing means provided inside the first smoke barrier wall that biases the other barrier wall toward the first barrier wall. When the width of the joint changes due to an earthquake, the overlap width of the first smoke barrier wall and the other smoke barrier wall changes, thereby absorbing the shaking caused by the earthquake.

Description

Technical Field

[0001] The present invention relates to a smoke-proof hanging wall device provided at a joint portion between ceilings between left and right bodies.

Background Art

[0002] Conventionally, a smoke-proof hanging wall has been installed for the purpose of preventing the spread of smoke in case of a fire or the like. As existing smoke-proof hanging walls, plate-shaped members, smoke-proof hanging walls made of glass or non-combustible sheets, etc. are provided on the ceiling of a building. As a movable hanging wall, a device in which the hanging wall drops only during a fire is known. For example, "a plate-shaped member attached to the ceiling side so as to be rotatable about one end side, a locking device that locks the other end side of the plate-shaped member on the ceiling side and maintains the plate-shaped member in a state where the plate surface thereof extends along a horizontal plane, and when the locking device releases the locking of the other end side of the plate-shaped member based on a release signal from a smoke detector, a smoke-proof hanging wall device provided with a smoke-proof hanging wall setting means for setting a smoke-proof hanging wall in which the plate-shaped member drops from one end side toward the other end side, and the smoke-proof hanging wall setting means includes a flexible metal connecting member having one end connected to a connected portion provided on the ceiling back side or the wall side and the other end connected to a connected portion on the other end side of the plate-shaped member" etc. are known (Patent Document 1).

[0003] As long as it is a smoke-proof hanging wall provided within the same body, even a conventional hanging wall or a hanging wall such as that in Patent Document 1 can exhibit sufficient effects. However, when a smoke-proof hanging wall is provided so as to span between different bodies, there is a risk that the smoke-proof hanging wall may be damaged during an earthquake.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In view of the above-mentioned drawbacks of conventional smoke barriers, the present invention aims to provide a smoke barrier device that can prevent damage from earthquake-induced shaking, even when the smoke barrier is installed by spanning it across left and right structural frames that are fixedly provided with joints.

[0006] The aforementioned and other objectives and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.

[0007] However, the drawings are for illustrative purposes only and do not limit the technical scope of the present invention. [Means for solving the problem]

[0008] To achieve the above objective, the smoke-proof curtain wall device described in claim 1 of the present invention is a smoke-proof curtain wall device installed in the joint between one building structure and the other building structure, comprising: one box-shaped smoke-proof curtain wall with one end attached to one building structure and the other end open; the other smoke-proof curtain wall with one end attached to the other building structure and the other end being installed so as to be inserted into the other end of the first smoke-proof curtain wall under normal conditions; and a biasing means provided inside the first smoke-proof curtain wall to bias the other curtain wall toward the first curtain wall, wherein when the width of the joint changes due to an earthquake, the overlap width of the first smoke-proof curtain wall and the other smoke-proof curtain changes, thereby absorbing the shaking caused by the earthquake.

[0009] The smoke barrier device according to claim 2 is characterized in that a gap is formed between one of the smoke barriers and the ceiling material and between the other smoke barrier and the ceiling material, and further comprises a sealing member for closing the gap.

[0010] The biasing means of the smoke barrier device according to claim 3 is characterized by comprising a wire winding device provided inside one of the smoke barriers, and a wire having one end connected to the wire winding device and the other end connected to the other smoke barrier. [Effects of the Invention]

[0011] As is clear from the above explanation, the present invention provides the following effects. (1) In the invention described in claim 1, the overlap width of one smoke barrier wall and the other smoke barrier wall changes during an earthquake, and in order to absorb the shaking caused by the earthquake, even when installed between different structural frames, the shaking caused by the earthquake can be absorbed without damage. (2) In the invention described in claim 2, the same effects as in (1) above can be obtained, and the presence of a gap allows for smoother displacement of one smoke barrier wall and the other smoke barrier wall during an earthquake. (3) The invention described in claim 3 also provides the same effects as those described in (1) and (2) above. [Brief explanation of the drawing]

[0012] Figures 1 to 7 are explanatory diagrams showing the first embodiment of the present invention. [Figure 1] Front view of the ceiling joint device according to the first embodiment. [Figure 2] A cross-sectional view along line 2-2 in Figure 1. [Figure 3] A cross-sectional view along line 3-3 in Figure 1. [Figure 4] Diagram illustrating the left and right smoke barriers and biasing mechanisms. [Figure 5] A diagram illustrating the operation of joints that have narrowed due to an earthquake. [Figure 6] A diagram illustrating the operation of joints that have widened due to an earthquake. [Figure 7] A diagram illustrating the movement of a building when the left and right sides of the structure sway in different directions (forward and backward) during an earthquake. [Modes for carrying out the invention]

[0013] Hereinafter, the present invention will be described in detail according to the embodiments for carrying out the present invention shown in the drawings. In this specification, the left - right direction, the front (lower part of the drawing) - rear (upper part of the drawing) direction are based on FIG. 2, and the up (upper part of the drawing) - down (lower part of the drawing) direction is based on FIG. 1.

[0014] In addition, in the present invention, the building body refers to a building such as a building, a road, a slab, an elevator shaft, etc. where a joint plate can be installed, and the entrance / exit includes not only the entrance / exit provided with a door or a gate, but also a passage through which people, vehicles, etc. can pass.

[0015] In the first embodiment for carrying out the present invention shown in FIGS. 1 to 7, 1 is a smoke - proof curtain wall device installed such that one smoke - proof curtain wall 5 and the other smoke - proof curtain wall 6 are positioned in a substantially horizontal state at the joint part 2 between one building body 3 and the other building body 4. Note that one building body 3 and the other building body 4 are separate and independent structures.

[0016] This smoke - proof curtain wall device 1 is composed of, for example, as shown in FIGS. 1, 2, 7, etc., one smoke - proof curtain wall 5 which is a long box - shaped member with one end attached to one building body 3 and the other end opening in the horizontal direction, and the other smoke - proof curtain wall 6 with one end attached to the other building body 4 so as to be inserted into the other end of the one smoke - proof curtain wall 5 in a freely - slidable manner in the left - right direction with respect to the one smoke - proof curtain wall 5, and biasing means 7 provided inside the one smoke - proof curtain wall 5 for biasing the other curtain wall 6 toward the one curtain wall 5 side.

[0017] One building body 3 and the other building body 4 are provided via the joint part 2, and an overhead joint device provided with an overhead joint plate as the ceiling material 8 is provided above the vicinity of the smoke - proof curtain wall device 1 of the present invention. Note that the overhead joint device or the overhead joint plate as the ceiling material 8 may be of any known configuration.

[0018] One smoke-proof curtain 5 has one end attached to the wall surface of one housing 3 via a rotating member 9 such as a hinge or a hinge, and the other end side is open. In this embodiment, this one smoke-proof curtain 5 is provided with a gap between the ceiling material 8, and this gap is blocked by a seal member 10. In this embodiment, as the seal member 10, a plate-shaped elastic material is used, and one end is fixed to the one smoke-proof curtain 5 and provided so that the upper end contacts the ceiling material 8. In this embodiment, an opening or slit 5a is formed on the upper surface of this one smoke-proof curtain 5 so that the seal member 10 fixed to the upper surface of the other smoke-proof curtain 6 described later can pass through. It is desirable that the end of this opening or slit 5a is bent substantially at a right angle downward.

[0019] The other smoke-proof curtain 6 has one end attached to the wall surface of the other housing 4 via a rotating member 9 such as a hinge or a hinge, and is provided in a state where the other end side is inserted into the opening on the other end side of the one smoke-proof curtain 5 during normal times.

[0020] T Although not shown, rollers, sliding materials, etc. may be provided inside the one smoke-proof curtain 5 or at the bottom of the other smoke-proof curtain 6 so as to make the sliding of the one smoke-proof curtain 5 and the other smoke-proof curtain 6 smooth. Further, a sealing material or the like may be provided at the opening of the one smoke-proof curtain 5 so that smoke does not leak through the inside of the one smoke-proof curtain 5. It is also desirable to provide a sealing material or the like between the left and right smoke-proof curtains 5 and 6 and the left and right housings 3 and 4.

[0021] T A seal member 10 is also provided in the gap between the upper part of this other smoke-proof curtain 6 and the ceiling material 8. In this embodiment, this seal member 10 passes through the opening or slit 5a formed on the upper surface of the one smoke-proof curtain 5 and is fixed to the upper surface of the other smoke-proof curtain 6 so that the upper end contacts the ceiling material 8. Further, it is desirable to provide a rising guide rail near this opening or slit 5a so as to be guided by the bent portion formed in the opening or slit 5a.

[0022] If no openings are formed on the upper surface of one of the smoke-proof curtain walls 5, the sealing member 10 fixed to one of the smoke-proof curtain walls 5 can be extended to the other building structure to seal the gap between the other smoke-proof curtain wall 6 and the ceiling material 8. In such cases, it is desirable to use magnets or the like to ensure that the other smoke-proof curtain wall 6 and the sealing member 10 are in close contact. Also, if the ceiling material 8 and the other smoke-proof curtain wall 6 do not move relative to each other during an earthquake, the sealing member 10 may be fixed to the ceiling material 8. Thus, in this embodiment, gaps are formed between one of the smoke-proof curtain walls 5 and the ceiling material 8, and between the other smoke-proof curtain wall 6 and the ceiling material 8, and the sealing member 10 is provided to seal these gaps.

[0023] In this embodiment, gaps are formed between one smoke-proof curtain wall 5 and the ceiling material 8, and between the other smoke-proof curtain wall 6 and the ceiling material 8. However, the upper surface of one smoke-proof curtain wall 5 may be made open, and the upper surface of the other smoke-proof curtain wall 6 may be formed to be substantially horizontal, so that the left and right smoke-proof curtain walls 5 and 6 and the ceiling material 8 are in substantially contact with each other. In such a case, if smoke does not leak from between the left and right smoke-proof curtain walls 5 and 6 and the ceiling material 8, it is not necessarily required to provide the sealing member 10.

[0024] In this embodiment, the biasing means 7 consists of a wire winding device 11 provided inside one of the smoke-proof curtain walls 5, and a wire 12, one end of which is connected to the wire winding device 11 and the other end of which is connected to the other smoke-proof curtain wall 6. This wire 12 is provided in an upper and lower pair and is connected to the upper and lower sides of the center of the other smoke-proof curtain wall 6 via pulleys 13, respectively. By connecting the pair of wires 12 to the upper and lower parts of the other smoke-proof curtain wall 6 in this way, the other smoke-proof curtain wall 6 can be smoothly biased. In this embodiment, the biasing means 7 is used as described above, but a biasing means 7 may also be provided by fixing one end of a coil spring or the like inside one of the smoke-proof curtain walls 5 and connecting the other end to the other smoke-proof curtain wall 6.

[0025] When the structural members 3 and 4 sway from side to side during an earthquake, causing the joint 2 to narrow, as shown in Figure 5, the other end of the other smoke barrier wall 6 will move further into the interior of the first smoke barrier wall 5, causing a positional displacement that increases the overlap between the first smoke barrier wall 5 and the second smoke barrier wall 6, thereby absorbing the shaking caused by the earthquake.

[0026] When the building structures 3 and 4 sway from side to side during an earthquake, causing the joint 2 to widen, the smoke barriers 5 and 6 will shift positions to reduce the overlap between them, as shown in Figure 6, thereby absorbing the seismic movement. At this time, it is conceivable that the other smoke barrier 6 may temporarily detach from the other smoke barrier 5. However, since it is biased by the biasing means 7 to retract into the interior of the other smoke barrier 5, it will automatically retract into the interior of the other smoke barrier 5 and return to its original position once the seismic movement ends. Thus, although there is a possibility that the other smoke barrier 6 may temporarily detach during an earthquake, it will return to its original position once the seismic movement ends, allowing it to properly perform its smoke-blocking function.

[0027] If the left and right structural bodies 3 and 4 sway in different longitudinal directions during an earthquake, the left and right smoke-proof curtain walls 5 and 6 rotate in the longitudinal direction with the pivot member 9 as the pivot point, as shown in Figure 7, to absorb the shaking caused by the earthquake. [Industrial applicability]

[0028] This invention is used in industries that manufacture and use smoke barriers. [Explanation of symbols]

[0029] 1: Smoke barrier curtain device, 2: Joint section, 3: One structural frame, 4: The other structural frame, 5: One smoke barrier, 6: The other smoke barrier, 7: Biasing means, 8: Ceiling material, 9: Rotating member, 10: Sealing member, 11: Wire winding device, 12: Wire, 13: Pulley.

Claims

1. A smoke-proof curtain wall device installed in the joint between one structural frame and the other structural frame, A smoke-proof curtain device comprising: one box-shaped smoke-proof curtain wall with one end attached to one structural frame and the other end open; another smoke-proof curtain wall with one end attached to the other structural frame and the other end inserted into the other end of the first smoke-proof curtain wall under normal conditions; and a biasing means provided inside the first smoke-proof curtain wall to bias the other curtain wall toward the first curtain wall, wherein when the width of the joint changes due to an earthquake, the overlap width of the first smoke-proof curtain wall and the other smoke-proof curtain changes, thereby absorbing the shaking caused by the earthquake.

2. The smoke barrier device according to claim 1, characterized in that a gap is formed between one of the smoke barriers and the ceiling material and between the other smoke barrier and the ceiling material, and further comprising a sealing member for closing the gap.

3. The biasing means is characterized by comprising a wire winding device provided inside one of the smoke-proof curtain walls, and a wire whose one end is connected to the wire winding device and whose other end is connected to the other smoke-proof curtain wall, as described in claim 1 or claim 2.

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