JP2000179904A - Ventilator for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilator for a building which has an excellent ventilating capacity and prevents penetration of rain water or the like. SOLUTION: A ventilator comprises louvers 10 which are fixed to a ventilating hole provided at an end side wall surface of a building and communicated with the interior and exterior, a ventilating hole frame 20 having a given shape which has been formed in accordance with the shape of the ventilating hole, and a cover 30 for covering the outer upper surface of the ventilating hole frame 20. Each of the louvers 10 is inclined downward from the outside to the inside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation system for a building which is mounted on a ventilation hole provided on a wall surface of the building.

[0002]

2. Description of the Related Art Conventionally, various types of ventilators for attics of buildings have been proposed, and among them, in general, a ventilating hole provided on the side of the wife's side of the building communicates with the inside and outside. In addition, there has been proposed a ventilator including a ventilation port frame having an inclined louver that rises from the outside to the inside, and a cover body that covers the ventilation port frame and is partially open.

[0003]

However, such a ventilator can prevent the intrusion of rainwater or the like in the case of normal rainfall, but can prevent the intrusion of rainwater in the case of strong wind. It was not enough for intrusion.

That is, in the conventional ventilation device, since the louver is formed so as to rise from the outside to the inside, in the case of a rainfall accompanied by a strong wind, the external airflow hitting the louver blows up along the louver. . As a result, there is a problem that rainwater easily passes between the louvers and enters the attic.

FIGS. 6 and 7 show a state in which a conventional ventilator is attached to a wife's side wall surface of a house having a gimlet roof, which is a roof of a traditional Japanese house.
As shown in these figures, when it rains with the wind,
Since the wind and rain hits the roof below the ventilation device and blows up along the slope of the roof, rainwater easily enters between the louvers. That is, as described above, since the conventional ventilation device is formed so that the louvers rise from the outside to the inside, rainwater blown up along the slope of the roof easily passes between the louvers. There was a problem of getting in.

Accordingly, the present invention has been made in view of the problems existing in such conventional techniques, and an object thereof is to provide a ventilation device for a building which has an excellent ventilation capacity and does not allow rainwater or the like to enter. It is to be.

[0007]

Means for Solving the Problems To solve the above,
The means employed by the present invention will be described with reference to the reference numerals used in the embodiment. The ventilating apparatus 100 for a building according to claim 1 is attached to a ventilation opening provided on a wall surface of the building and communicates with the inside and outside. The louver 10 is provided with a louver 10 that is formed and a ventilation port frame 20 formed in a predetermined shape according to the shape of the ventilation port, and a cover 30 that covers an outer upper surface of the ventilation port frame 20. The gist of the present invention is that the louver 10 is inclined downward from the outside toward the inside.

Next, a ventilating apparatus for a building according to claim 2 is described.
0 facilitates that the ventilation opening frame 20 constituting the building ventilation device 100 according to claim 1 has an elliptical shape.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a building ventilation system according to the present invention will be described. However, this is a typical example, and unless it exceeds the gist of the present invention, the present invention will be described by the following examples. The invention is not limited.

First, a building ventilation system 10 according to the present invention.
A representative embodiment using 0 will be described.

FIG. 1 is a building ventilation device 1 according to the present invention.
It is the perspective view which showed the Example which attached the 1st Example of 00 to the house which adopted the gable roof.

Next, a first embodiment of the building ventilation system 100 will be described in detail with reference to FIGS. The ventilation device for a building 100 is attached to a ventilation hole provided on the side wall surface of the building and has a louver frame 20 having a louver communicating with the inside and outside, and a cover portion covering an outer upper surface of the ventilation frame 20. 30.

As shown in FIGS. 1 to 3, the ventilation port frame 20 is formed in a circular shape from an iron plate or the like.
Then, the plurality of louvers 10 formed inside the ventilation opening frame 20 are arranged in an inclined manner descending from the outside to the inside as shown in FIG. The ventilation frame 20 is provided with a cover 30 partially open to cover the outside. The cover part 30 is formed in a semi-spherical shape so as to cover the outer upper surface of the ventilation opening frame 20, and an opening part 31 is formed at a lower end part so that outside air can flow in. By providing this cover part 30,
Even if the louver 10 according to the present invention is formed in an inclined shape that descends from the outside to the inside, it is possible to prevent the rain falling from the sky from entering, and the cover part 30 is formed in a semi-spherical shape. This makes the design excellent.

A net 40 is provided on the back surface of the ventilation frame 20 to prevent insects and fine dust from entering. A circular peripheral wall portion 21 formed so as to surround the ventilation port frame 20 so as to communicate with the back side of the frame 20 in the attic direction.
Is provided. By forming the peripheral wall portion 21 in a circular shape, a piping material or the like piped in the attic can be easily inserted, so that forced ventilation by a blower or the like can be performed. A water intrusion prevention wall 22 for preventing intrusion of water into the attic is provided at the lower rear end of the circular peripheral wall 21. As shown in the figure, a perforation 23 communicating with the lower peripheral edge of the peripheral wall 21 is formed at the lower end of the ventilation port frame 20.

As described above, the embodiment of the first building ventilation device 100 according to the present invention has the following effects.

That is, as shown in FIG. 3, the louver 10 which descends from the outside to the inside is formed in the ventilation port frame 20 constituting the ventilation device 100 for a building according to the present invention, so that rainwater or the like can be prevented. Intrusion is prevented. That is, in the building ventilation device 100 according to the present invention, since the louvers 10 are formed so as to descend from the outside to the inside, the rainwater hits each louver 10 and bounces outward. Therefore, even in the case of a strong wind accompanied by rainwater, the rainwater hits the louver 10 and bounces outward, thereby preventing rainwater from entering.

Even if rainwater enters from between the louvers 10, the rainwater, together with the external airflow, hits the above-mentioned water intrusion prevention wall 22 provided at the lower peripheral portion of the peripheral wall portion 21 so that only the rainwater is removed and the external airflow is removed. Only the air flows into the attic through the ventilation holes 24. Then, the rainwater remaining on the lower peripheral portion of the peripheral wall portion 21 is discharged to the outside through the perforations 23 formed in the ventilation port frame 20.

Next, a building ventilation system 10 according to the present invention will be described.
A second embodiment of the present invention will be described in detail with reference to FIGS.

As shown in FIG.
Reference numeral 0 denotes a ventilation port frame 20 which is attached to a ventilation port provided on the side wall surface of the building and has a louver 10 communicating with the inside and outside, and which is formed in an oval shape, and an outer upper surface of the ventilation port frame 20 And a cover portion 30 that covers the cover.

As shown in the figure, the ventilation port frame 20 is formed in an oval shape by an iron plate or the like. And
The plurality of louvers 10 arranged inside the ventilation opening frame 20 are formed in an inclined shape that descends from the outside to the inside as illustrated. And the ventilation opening frame 20
Is provided with a cover part 30 partially open to cover the outer surface of the cover.

The cover 30 is, as shown in FIG.
It is formed in an elliptical semi-spherical shape so as to cover the outer upper surface of the ventilation port frame 20, and an opening 31 is formed at the lower end thereof so that outside air can flow in. By providing the cover portion 30, even if the louver 10 constituting the present invention is formed in an inclined shape that descends from the outside to the inside, it is possible to prevent the rain falling from the sky from entering, and furthermore, By forming the portion 30 in an elliptical semi-spherical shape, the design becomes excellent. And, the ventilation port frame 20
A mesh body 40 is provided on the back surface of the device to prevent insects and fine dust from entering.

Next, the ventilation port frame 20 is provided with a rectangular peripheral wall portion 21 surrounding the ventilation port frame 20 so as to communicate from the back surface of the frame 20 in the direction of the attic. .

At the rear end of the upper wall 21a of the peripheral wall 21 in the direction of the attic, a water impermeable wall 25 is provided so as to be inclined toward the inside of the peripheral wall 21. At the rear end of the lower wall 21b of the peripheral wall 21 in the direction of the attic, a water intrusion prevention wall 22 inclined toward the inside of the peripheral wall 21 is provided. As shown in the figure, a perforation 23 communicating with the lower peripheral edge of the peripheral wall 21 is formed at the lower end of the ventilation port frame 20.

As described above, the embodiment of the second building ventilation system 100 according to the present invention has the following effects.

That is, as shown in FIG. 3, according to the ventilating apparatus 100 for a building according to the present invention, the ventilation opening frame 20 is formed in an oval shape, so that the ventilation volume can be increased. Rainwater intrusion is prevented. That is, according to the conventional ventilator, when the ventilation area is increased, the amount of rainwater infiltration increases in proportion thereto. However, in the building ventilator 100 according to the present invention, the louvers 10 move from the outside toward the inside. Since it is formed so as to descend, the rainwater hits each louver 10 and bounces outward. Therefore, even in the case of a strong wind accompanied by rainwater, the rainwater hits the louver 10 and bounces outward, so that only the outside air flows in. As a result, intrusion of rainwater is prevented.

Also, even if rainwater enters from the louver 10, the rainwater hits the impermeable wall 25 provided on the upper wall 21a of the peripheral wall 21 and moves downward together with the external air flow. The rainwater moved downward hits the lower wall 21b of the peripheral wall 21 and hits the water intrusion prevention wall 22 provided at the rear end. Subsequently, the rainwater blows up along with the water intrusion prevention wall 22 together with the external airflow. However, since the upper edge portion of the water intrusion prevention wall 22 is further formed with a folded portion 26,
Only the rainwater is removed by the folded portion 26, and only the outside air flow flows into the attic through the vent hole 24. Further, by making the depth of the lower wall 21b of the peripheral wall portion 21 longer than the depth of the upper wall 21a of the peripheral wall portion 21, it is possible to reliably receive the wind and rain that has moved downward while hitting the impermeable wall 25. . Further, as shown,
A perforation 23 communicating with the lower peripheral edge of the peripheral wall 21 is provided at the lower end of the ventilation port frame 20. Since the lower wall 21b of the peripheral wall 21 is formed to be inclined upward in the attic direction, rainwater remaining on the lower wall 21b of the peripheral wall 21 is discharged to the outside through the perforations 23.

The effects exerted by the embodiment of the building ventilator 100 having the above configuration will be described below.

(1) The ventilation device 100 for a building according to the first embodiment is characterized in that the louver 10 is formed so as to be inclined downward from the outside toward the inside. For this reason, the rainwater hits each louver 10 and rebounds outward, thereby preventing rainwater from entering. So, of course, gable roofs,
Even when it is attached to the wife's side of the roof of the turret, it is possible to prevent rainwater from entering.

(2) In the building ventilation system 100 according to the first embodiment, since the water intrusion prevention wall 22 that covers the lower peripheral end of the circular peripheral wall 21 is provided, the louver is temporarily provided. Even if rainwater enters from ten spaces, it is possible to prevent rainwater from entering the attic.
In addition, since the perforation 23 is provided at the lower end of the ventilation frame 20, rainwater remaining on the lower peripheral edge of the peripheral wall 21 can be discharged to the outside.

(3) In the ventilation device 100 for a building according to the second embodiment, the ventilation port frame 20 is formed in an elliptical shape, thereby increasing ventilation and preventing rainwater from entering. be able to.

(4) In the ventilation device 100 for a building according to the second embodiment, the peripheral wall portion 2 is formed on the back surface of the ventilation opening frame 20 so as to surround the ventilation opening of the ventilation opening frame 20.
1, a water-impervious wall 25 provided at the rear end of the upper wall 21a of the peripheral wall portion 21 in the attic direction so as to be inclined inwardly of the peripheral wall portion 21, and a lower wall 2 of the peripheral wall portion 21
By providing the water intrusion prevention wall 22 inclined toward the inside of the peripheral wall portion 21 at the rear end of the attic in 1b, even if rainwater enters from between the louvers 10, the rainwater can be removed together with the outside air flow. The rainwater that has moved downward while hitting the impermeable wall 25 provided on the upper wall 21a of the peripheral wall 21 that has fallen, and the rainwater that has traveled downward hits the lower wall 21b of the peripheral wall 21 and has a water intrusion prevention wall provided at the rear end. It is 22. Subsequently, the rainwater blows up along with the water intrusion prevention wall 22 together with the outside air flow.
Further, since the folded portion 26 is formed, the folded portion 2
6 removes only rainwater and only the outside air flow
4 and flow into the attic. Therefore,
Rainwater intrusion can be reliably prevented.

By the way, the present invention is not limited to the above-described embodiment, but includes improvements, modifications, etc. within a range that can achieve the object of the present invention. In the embodiment described above, the building ventilation system 10 according to the present invention is used.
Although the example where 0 was attached to the wife's side wall of the house was shown, it is not limited to this, and it may be attached to any part of the house as long as it requires ventilation. In addition, although the example in which the louver 10 is formed inside the ventilation port frame 20 is shown, the present invention is not limited to this, and the louver 10 is provided separately from the ventilation port frame 20 from the outside to the inside. It may be combined with a louvered frame. Further, the shape of the ventilation port frame 20 is not limited to the illustrated embodiment, and may be a shape such as a rectangle or a diamond, or any shape. In addition, as in the second building ventilation system described above, in order to further improve drainage,
A folded portion may be provided at the upper edge of the water intrusion prevention wall constituting the first building ventilation device.

[0033]

As described above, the ventilation system for a building according to the first aspect is provided with a louver that is attached to the ventilation hole provided on the side wall surface of the building and communicates with the inside and outside and has a shape of the ventilation hole. The ventilation port frame body formed in a predetermined shape according to, and a cover portion that covers the outer upper surface of the ventilation port frame body, the louver is an inclined louver that descends from the outside to the inside. Things. Not only in the case of normal wind and rain, but also in the case of strong wind and rain, only the outside airflow from which only rainwater has been removed can flow into the attic or the like.

In the ventilating device for a building according to the second aspect, by forming the ventilation port frame into an oval shape, not only the effect of the invention according to the first aspect but also the ventilation capacity can be obtained. Can be increased.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a first building ventilation device according to the present invention is attached to a side wall surface of a wife.

FIG. 2 is a front view showing a first building ventilation device according to the present invention.

FIG. 3 is an enlarged cross-sectional view showing a state in which the first building ventilation device according to the present invention is attached to the end wall surface.

FIG. 4 is a front view showing a second building ventilation device according to the present invention.

FIG. 5 is a perspective view as viewed from AA in FIG. 4;

FIG. 6 is a perspective view showing a state in which a conventional ventilation device is attached to the side wall surface of a wife with a purlin roof.

FIG. 7 is a schematic cross-sectional view showing a state in which a conventional ventilation device is attached to a side wall surface of a house with a gabled roof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Louver 20 Ventilation frame 21 Peripheral wall part 21a Upper wall 21b Lower wall 22 Water intrusion prevention wall 23 Perforation 24 Vent hole 25 Water barrier 26 Folding part 30 Cover part 31 Opening 40 Netting 100 Building ventilation device

Claims (2)

[Claims] 1. A ventilation port frame attached to a ventilation port provided on a wall surface of a building and having a louver communicating with the inside and outside and formed in a predetermined shape according to a shape of the ventilation port, and the ventilation port frame. A cover covering the outer upper surface of the body, wherein the louver is an inclined louver descending from the outside to the inside. 2. The ventilation device for a building according to claim 1, wherein the ventilation port frame has an oval shape.