JP5489040B2 - building - Google Patents

Description

  The present invention relates to a building in which a plurality of levels of air-blowing spaces are provided, and handrails and fire-proof shutters that can open and close the openings are provided at the openings of the layers facing the air-blowing spaces.

Conventionally, in this type of building, the damage caused by flames and smoke when a fire breaks out in the ventilated space spreads to each level, and the fire and smoke generated by the fire in the layered part passes through the ventilated space. In order to prevent expansion to other levels, as shown in FIG. 8, a fire-proof shutter 2 that can isolate the blow-out space V from each level K is provided.
In the fire-proof shutter 2, a driving device 2B that opens and closes the shutter body 2A is installed on the upper edge (the back of the ceiling, etc.) of the opening W, and the shutter body 2A extends from the floor F along the vertical plane. It is installed so that a fire prevention zone may be comprised by paying out to the flooring part 7 (for example, refer patent document 1).

JP 2002-147138 A (FIGS. 6 and 1)

As shown in FIG. 8, a beam H is often installed along the edge at the edge of the opening of each level facing the blowout space. In this case, a fire shutter is provided directly below the beam. If 2 is installed, the opening height under the beam cannot be effectively secured, so that the fire shutter 2 is installed on the opposite side of the blowout space V, avoiding the beam H portion.
Further, even in the case of a frame structure in which the beam H is not provided at the edge of the opening W, the drive device 2B is moved from the time of the blowout space V in order to improve the aesthetics of the floor edge that faces the blowout space V. It may be installed in a portion that enters each layer K side.
According to the above-described conventional building, the shutter main body 2A moves up and down along the vertical plane, so that the driving device 2B enters the respective layer portion K side from the edge of the floor edge facing the blowout space V. As it is installed at the portion, the shutter main body 2A and the landing portion 7 are also located in the portion that enters the respective layer portion K side from the edge of the floor edge.
On the other hand, the handrail 1 is disposed at the edge of the floor edge facing the blown-out space V as shown in FIG. 8A, or the position of the shutter main body 2A as shown in FIG. 8B. May be placed along the inside.
When the handrail 1 is disposed at the edge of the floor edge, the floor F can be effectively used up to the edge of the floor edge, but the opening W is formed on the landing portion 7 by the lowering of the shutter body 2A. There is a risk that objects (for example, chairs, foliage plants, luggage, etc.) that are obstructed when shutting off the door will be placed, and there is a problem that causes the shutter to fall down.
Further, when the handrail 1 is disposed inside the shutter body 2A, the floor portion F is arranged at the edge of the floor, although it is unlikely that the above-described problem of the lowering of the shutter is likely to occur because the object is rarely placed outside the handrail 1. There is a problem that cannot be used effectively until the department.
In addition, one cause of such a problem is that there is a restriction on the installation position of the shutter main body in order to secure a space for the bulky drive device 2B. To improve this point, a bulky drive device is required. Patent Document 1 describes that a fire blind that is not used is installed.
However, fire blinds can be operated by rotating a large number of blades that make up the blinds, thereby forming gaps between adjacent blades on the top and bottom, or conversely by bringing blade edges into contact with each other to shield the gaps. Thus, since the blind surface is opened and closed, the fire blind main body needs to be located at the normal time at the opening of each layer facing the blowout space. Therefore, a large number of blades and a frame supporting the blades block the line of sight, and the feeling of release in the blowout space is significantly impaired.

  Therefore, the object of the present invention is to solve the above-mentioned problems and to effectively use the floor surface to the edge of the floor edge facing the blowout space while maintaining a feeling of release in the blowout space. It is in the place of providing a building that is difficult to generate.

  According to the first characteristic configuration of the present invention, a blowout space is provided over a plurality of levels, and a handrail and a fire shutter that can open and close the opening are provided at the opening of each level facing the blowout space. A drive device that opens and closes the shutter body of the fire shutter is installed in an upper edge portion of the opening, and is landed on a lower end portion of the shutter body that is fed from the drive device. The portion is provided at a floor position that is closer to the blow-out space side than directly below the shutter extension portion of the drive device.

According to the first characteristic configuration of the present invention, since the landing portion is provided at a floor portion position that is closer to the blow-out space side than immediately below the shutter feeding portion of the driving device, the inner side from the landing portion is provided. It becomes larger than the conventional floor area and can be used as a wider space. In addition, since the landing part itself is close to the blow-off space side, it is possible to secure a wider space inside the handrail than before, regardless of whether the handrail is installed inside or outside the landing part. It becomes.
Further, according to the first characteristic configuration of the present invention, since the opening / closing locus of the shutter main body can be positioned on the blow-out space side from directly below the shutter payout part, for example, a chair or a foliage directly below the shutter payout part. Even if an obstacle such as a plant or a baggage is placed, it is possible to make it difficult for the shutter to fall down.
As a result, the floor surface can be effectively used up to the edge of the floor edge facing the blow-out space while maintaining a feeling of release in the blow-out space, and the shutter descent failure can be prevented.

  According to a second characteristic configuration of the present invention, an opening / closing locus of the shutter main body includes an inclined portion that is positioned on the side of the blow-off space as the distance from the driving device increases, and a linear portion that extends directly below the inclined portion. Is where you are.

  According to the second characteristic configuration of the present invention, the opening / closing locus of the shutter main body can be formed in a convex shape on the blow-out space side, and the inner space of the shutter can be secured more widely.

  According to a third characteristic configuration of the present invention, the landing portion is located closer to the blowout space than the handrail.

According to the third characteristic configuration of the present invention, it is possible to prevent the handrail from falling to the blow-out space side (outside), and the opening / closing locus of the shutter body is located on the outer side from the handrail. It becomes easy to prevent descent trouble.
That is, the handrail is used to partition the inner part and the outer part that are frequently used, and it is easy to prevent the object from being placed on the outer part of the section over the handrail. Obstacles are not left on the landing portion, and it is possible to prevent the shutter from being lowered.

  A fourth characteristic configuration of the present invention is that a beam is provided along an edge of the opening, and the driving device is installed on the side of the beam opposite to the blowout space.

  According to the fourth characteristic configuration of the present invention, since the beam is provided along the edge of the opening, the stress sharing of the floor edge can be effectively performed using the beam, and a reasonable stress can be obtained. Distribution is possible. In addition, since the driving device is installed on the opposite side of the blow-out space of the beam, the driving device can be installed by effectively using the space at the beam, and the opening height of the space under the beam is used effectively. can do.

Perspective view showing installation of fire shutter Sectional view showing installation of fire shutter Sectional drawing which shows the installation condition of the fire shutter of another embodiment Sectional drawing which shows the installation condition of the fire shutter of another embodiment Sectional drawing which shows the installation condition of the fire shutter of another embodiment Sectional drawing which shows the installation condition of the fire shutter of another embodiment Sectional drawing which shows the installation condition of the fire shutter of another embodiment Sectional view showing the installation status of a conventional fire shutter

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.

FIG. 1 shows an embodiment of a building B according to the present invention, and the building B is provided with a ventilated space V extending over a plurality of levels, and the opening W of each level facing the ventilated space V is as follows. A handrail 1 and a fire shutter 2 that can freely open and close the opening W are provided, and the fire shutter 2 constitutes a fire protection section between the layer portion K and the blowout space V.
A beam H is provided along the edge of the opening W.

As shown in FIG. 2, the fire shutter 2 is a metal shutter body 2A housed in a wound state in a metal shutter box X, and the shutter body 2A is fed out or taken up. And a driving motor (an example of a driving device) 2B that opens and closes.
In addition, the shutter box X is installed at a portion of the upper edge portion of the opening W opposite to the blowout space V of the beam H, and the front end of the shutter main body 2A is extended to the lower surface of the shutter box X. A payout window (corresponding to a shutter payout portion) 3 is formed.

The shutter main body 2A is configured by connecting a plurality of slat plates 4 via hinge portions 5 that connect the long side portions of the slat plates 4 so as to be relatively swingable. It is connected to a winding shaft 6 linked to the motor 2B.
By rotating the drive motor 2B, the shutter main body 2A can be wound around the winding shaft 6 or fed downward from the feed window 3.

  The landing portion 7 where the tip of the shutter main body 2A that is fed out from the driving device 2B is landed is a portion of the floor portion F that is closer to the blowout space V side than just below the feeding window 3 of the driving device 2B. Is provided.

Both lateral ends of the shutter main body 2A are fitted into guide rails 8 of channel members provided vertically from the upper edge of the opening W to the floor F, and along the guide rails 8 The shutter body 2A moves up and down along the feeding locus.
The guide rail 8 has an upper end portion corresponding to the feeding window 3 and a lower end portion corresponding to the landing portion 7. In the present embodiment, the shape of the guide rail 8 is, as shown in FIG. 2, the upper end portion is an inclined rail portion 8A that is positioned on the blowout space V side as the distance from the drive motor 2B increases. The portion that continues downward is a vertical rail portion 8B that extends directly from the inclined rail portion 8A.
The opening / closing locus portion of the shutter body 2A guided by the inclined rail portion 8A is referred to as an inclined portion 9, and the opening / closing locus portion of the shutter body 2A guided by the vertical rail portion 8B is referred to as a straight portion 10.

As shown in FIG. 2, the handrail 1 is erected on the floor F along the inside of the straight portion 10.
Usually, since it does not enter the blow-off space V side from the handrail 1, it is easy to prevent an object from being inadvertently placed on the mating floor portion 7 located outside the handrail 1, and a shutter due to an obstacle. Can prevent the descent trouble.

According to the building of the embodiment, the landing portion 7 is provided at the floor portion position near the blow-out space V side, and the handrail 1 is provided on the inner side along the straight portion 10 of the shutter opening / closing locus. The inside of the floor 7 is larger than the conventional floor area and can be used as a wider space, and it is possible to make it difficult to cause a shutter lowering failure.
In addition, since the beam H is provided along the edge of the opening W, the beam H can be used effectively to distribute stress rationally, and the beam H becomes a blindfold so that the side of the blowout space V can be used. It is possible to prevent the drive motor 2A from being exposed, and to prevent a decrease in aesthetics at the floor edge.

[Another embodiment]
Other embodiments will be described below.

<1> The fire shutter 2 is not limited to the structure and type described in the previous embodiment, but is a type that extends from the state wound around the winding shaft 6 to the opening W while being rewound by the driving device. For example, when storing, the shutter body 2A is taken in and stored in the ceiling space while sliding along the longitudinal direction, and when the shutter is lowered, the shutter body 2A is moved from the ceiling space along the feeding direction. It may be of a type that extends to the opening W by sliding.
<2> The opening / closing locus of the shutter main body 2A is not limited to the one provided with only the inclined portion 9 and the linear portion 10 subsequent to the shutter box X as described in the previous embodiment. As shown in FIG. 3, it is the structure which provided the inclination part 9 and the linear part 10 below the linear part 10, or was the structure which provided only the inclination part 9 as shown in FIG. 4, FIG. Also good.
Further, as described in the previous embodiment, the inclined portion 9 is not limited to a linear shape, for example, a combination of a linear shape and a curved shape, or as shown in FIGS. It may be configured in a curved shape.
<3> The building B is not limited to the structure described in the previous embodiment. For example, as shown in FIGS. 5 and 6, a structure in which the beam H along the edge of the opening W is not provided. It may be. In the embodiment shown in FIG. 5, the mounting position of the fire shutter 2 is set to a portion that enters the inside from the edge of the floor, and the presence of the fire shutter 2 is made difficult to see from the blow-out space V side. The design is prevented from being lowered.
Further, as shown in FIG. 6, a building structure in which the floor F on the upper floor enters the layer K side from the ventilated space V than the floor F on the lower floor may be used.
<4> As described in the previous embodiment, the handrail 1 is not limited to the one provided inside the landing portion 7, and for example, as shown in FIG. You may install in the blowing space V side from the floor part 7. FIG.

  In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Handrail 2 Fire prevention shutter 2A Shutter main body 2B Drive motor (an example of a drive device)
3 Feeding window (equivalent to the shutter feeding part)
7 Landing part 9 Inclined part 10 Straight part F Floor part H Beam V Vented space W Opening part

Claims (4)

There is an open space across multiple levels,
A building in which a handrail and a fire shutter that can freely open and close the opening are provided at the opening of each level facing the blowout space,
The drive device for opening and closing the shutter body of the fireproof shutter is installed at the upper edge of the opening,
The flooring portion where the lower end portion of the shutter main body fed out from the driving device lands is provided at a floor portion position near the blow-out space side from directly below the shutter feeding portion of the driving device.   2. The building according to claim 1, wherein the opening / closing locus of the shutter main body includes an inclined portion that is positioned on the side of the blow-off space as it moves away from the driving device, and a linear portion that extends directly below the inclined portion.   The building according to claim 1, wherein the landing portion is positioned on the side of the blow-out space from the handrail.   The building as described in any one of Claims 1-3 in which the beam was provided along the edge of the said opening part, and the said drive device is installed in the opposite side to the said hollow space of the said beam.

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