JP3792553B2 - Ventilation equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ventilator, and more particularly, an eaves vent, which serves as an outside air introduction port when ventilating indoors and outdoors through the eaves, a ventilation part between a roof drainer and a wall surface, and a ventilation between a foundation drainer and a wall surface. In particular, the present invention relates to a ventilator installed in a narrow gap portion between the eaves lower side wall and the wall of a so-called wall rising type building structure .
[0002]
[Prior art]
In recent years, buildings to be constructed have a structure in which a ventilation layer is provided between the outer wall and the inner wall, and a perforated plate is placed under the eaves in order to let out moist air from the room that permeates through the wall. It has become. The air flowing into the building from the ventilation layer and the perforated plate under the eaves flows out through the attic. Therefore, ventilation openings or ventilation devices having various shapes are conventionally provided in the attic. Similarly, a ventilator is provided between the roof drainer and the wall surface, or between the foundation drainer and the wall surface.
[0003]
Japanese Patent No. 2683109 discloses an intake / exhaust member used for this purpose, which is a laminate of a plurality of plastic plates in which vent holes penetrating in the width direction (vertical direction at the time of installation) are continuously provided over the entire length. The laminated plastic plate is cut with a heat cutter, and the cut surface is fixed by heat sealing.
[0004]
This air intake / exhaust member is installed, for example, between a nose concealment board and a ceiling board under the eaves, with its ventilation holes facing up and down, and because of the length of the ventilation holes, it prevents the intrusion of rain and snow. Allow internal and external ventilation.
[0005]
However, when a fire breaks out, flames and hot air may melt this intake / exhaust member or pass through and enter the indoors, and conversely, indoor flames and hot air may go out and cause fire spread.
[0006]
[Problems to be solved by the invention]
In the case of the intake / exhaust member, since the above-described problem has occurred, the present invention does not have such a problem, that is, in a narrow gap portion between the eaves lower side wall and the wall of the so-called wall rising type building structure. It is a ventilation device suitable for installation , and it can secure sufficient ventilation performance while preventing the intrusion of rain and snow at the installation location , and can prevent the passage of flame and hot air in the event of a fire. Thus, an object is to provide a ventilator that can prevent the spread of fire.
[0007]
[Means for Solving the Problems]
The present invention relates to a ventilation apparatus installed in the narrow gap portion, such as eaves side walls and walls of the building structure walls rising type, the intake and exhaust member disposed on the interior side, is adjacent thereto chamber consists of a fire protection member disposed on the outer side, the intake and exhaust member, I der which vent passage passing from one end to the other end is arranged a number vertically and horizontally, installed to the ventilation path is directed in the vertical direction is, the fire member includes a pair of opposing sides, have an inclined bottom vents are formed, Tsu der which one or both non-flammable thermal expansion material of the side surfaces the opposite is fixed Thus , the above-described problems are solved by a ventilator characterized in that the pair of side surfaces are installed so as to extend in parallel with the ventilation path .
[0008]
In the above invention, a control surface extending in an inward horizontal direction may be provided on any one of the side surfaces of the fire prevention member .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the accompanying drawings. Ventilation device according to the present invention, the intake and exhaust member 1, consists of fire member 3 which, between the eaves side wall 26 and the wall 27 of the building structure of the so-called wall rising type (Fig. 1), between the roof drainage and the wall, base Installed in a narrow gap between the drainer and the wall. In each case described above, the fire prevention member 3 is disposed immediately below (outside) the intake / exhaust member 1.
[0010]
As the intake / exhaust member 1, various conventionally used members can be used as they are. The intake / exhaust member 1 shown in FIG. 3 is in accordance with the invention of the above-mentioned Japanese Patent No. 2683109, and when installed, a plurality of plastic plates 12 having a large number of ventilation passages 13 penetrating in the vertical direction are stacked, and this is a heat cutter. By cutting to a predetermined length, the cut surface is fixed by thermal fusion at the same time as cutting. The lower surface (the surface indicated by arrow A in FIG. 3) may be a horizontal surface, but may be a slope as shown.
[0011]
The fire prevention member 3 has a bottom surface 9 provided with a vent 10 and side surfaces 14 and 15 fixed in contact with the eaves lower side wall 26 and the wall 27. Since this ventilator is installed in a narrow gap between the eaves lower side wall 26 and the wall 27, the bottom surface 9 is inclined to ensure a sufficient opening area in the vent 10. The bottom surface 9 is also a slope for those installed between the roof drainage and the wall surface, which is a narrow gap, or between the foundation drainer and the wall surface.
[0012]
As shown in FIG. 2, the fire prevention member 3 can be formed by folding one plate material provided with the vent 10 and overlapping the folded portions.
[0013]
11 is a nonflammable thermal expansion material, and a known graphite-based thermal expansion sheet or butyl rubber-containing graphite sheet can be used. The non-combustible thermal expansion material 11 may be fixed on the inner surfaces of both the side surfaces 14 and 15, but since the interval between the side surfaces 14 and 15 is narrow, it is usually sufficient to be fixed on one of the side surfaces 14 and 15. . Alternatively, the air vent 10 can be fixed to the bottom surface 9 so as not to be blocked. The intake / exhaust member 1 is fixed immediately above the fire prevention member 3.
[0014]
A control surface extending in the inward horizontal direction from either one of the side surfaces 14 and 15 may be provided. This control surface is extended to the middle position between the side surfaces 14 and 15, thereby controlling the course of the flame and preventing the non-combustible thermal expansion material 11 from falling off due to a fire and preventing its function from being performed.
[0015]
In the ventilator having such a structure, outdoor air reaches the intake / exhaust member 1 through the vent hole 10 of the fire prevention member 3 and flows into the indoor side through the vent passage 13. Also, the indoor air flows in the opposite direction to the above and is exhausted outside the room.
[0016]
Although there is not much resistance to the air flow, rain or snow that tends to flow into the room during strong winds can pass through the vent 10 of the fire prevention member 2 with little resistance, but the narrow air passage of the intake / exhaust member 1 When trying to enter 13, surface tension may act, and since it is prevented from entering deeply into the air passage 13, it does not enter the indoor side.
[0017]
Further, when a flame or high hot air reaches the fire prevention member 3 at the time of the occurrence of a fire, the non-combustible thermal expansion material 11 expands to fill the inside of the fire prevention member 3 and completely close the vent hole 10. For this reason, the flame and hot air are prevented from entering further.
[0018]
【The invention's effect】
The present invention is as described above, and in a narrow gap ventilation section such as between the eaves lower side wall and the wall of a so-called wall-rise type building structure, while maintaining sufficient ventilation performance, a flame and high hot air are generated in the event of a fire. This prevents the passage of fire and thus kills the fire and prevents the spread of fire.
[Brief description of the drawings]
FIG. 1 is a construction state diagram of an embodiment of the present invention.
FIG. 2 is a view showing a configuration of a fire prevention member in the embodiment shown in FIG. 1;
FIG. 3 is a diagram showing a configuration example of an intake / exhaust member used in the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Intake / exhaust member 3 Fire prevention member 9 Bottom surface 10 Vent 11 Incombustible thermal expansion material 12 Plastic plate 13 Ventilation path 14 Side surface 15 Side surface

Claims (2)

A ventilating device installed in a narrow gap portion between the eaves underside wall and the wall of a wall rising type building structure, and is arranged on the outdoor side adjacent to the intake / exhaust member arranged on the indoor side consists of a fire protection element, the intake and exhaust member, I der which vent passage passing from one end to the other end is arranged a large number in a matrix, wherein the air passage is disposed to face the vertical direction, the fire member includes a pair of opposing sides, have an inclined bottom vents are formed, on one or both sides of the counter I der those incombustible thermal expansion material is fixed, the pair The ventilator is characterized in that the side surface is installed so as to extend in parallel with the air passage .   The ventilation apparatus according to claim 1, wherein a control surface extending in an inward horizontal direction is provided on any one of the side surfaces of the fire prevention member.

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