JPH11125442A - Louver for air vent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the formation of the trace of foul water produced by rain water dropping down to the wall surface of a building after the rainwater adheres to the external surface of a hood. SOLUTION: A louver for air vent is formed in such a way that the lower edge of a hood 14 is formed in an inclined state so that the front section of the edge 21 may become lower than the rear end of the edge 21 and an upward bent section 22 is formed toward the outside of the hood 14 within a required range between the rear end and the front part of the edge 21. Therefore, the rainwater flowing down to the bent section 22 drops down from the front part of the hood 14 which is separated from the wall surface of a building.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gull for a vent.

[0002]

2. Description of the Related Art Generally, a vent formed in a wall surface of a building such as a building or a house has a purpose of preventing rainwater, foreign matter (for example, dead leaves) or insects from entering the vent. A gutter for ventilation holes is installed.

FIG. 11 to FIG. 13 show an example of a conventional vent gallery. This type of vent gallery is a cylindrical vent insertion insertable into a vent formed on a wall surface of a building. A louver main body 2 having a portion 1; a hood 4 surrounding the opening 3 on the front surface of the louver body 2 to prevent rainwater from entering; and preventing foreign matter and insects from entering the opening 3 on the front surface of the louver body 2. A ventable screen 5 to be prevented is formed from a plate material such as aluminum by pressing or extrusion, and a flange portion 6 formed at one end of the ventilation hole insertion portion 1 of the bulging body 2 and a base end portion of the hood 4 are formed. And a flange portion 7 formed in the above manner is overlapped with a screen 5 interposed therebetween, and is integrally assembled with a rivet 8.

[0004] In addition, the ventilation hole insertion portion 1 of the rattle body 2
At several places (3 to 4 places) in the circumferential direction on the outer peripheral surface of, a stopper metal fitting 9 for pushing the vent insertion portion 1 into the vent and fixing the vent insert is attached via a rivet 10.

[0005] In the figure, reference numeral 11 denotes an opening formed in the hood 4.

[0006] When the ventilation hole insertion portion 1 of the louver body 2 is pushed into the ventilation hole of the building and fixed to the ventilation hole with the retaining fitting 9 to install the ventilation louver, rainwater into the ventilation hole can be obtained. The hood 4 prevents entry and the screen 5 prevents foreign substances and insects from entering the ventilation hole, thereby allowing good ventilation between the inside and outside of the building.

[0007]

However, in the conventional louver for a vent as described above, the rainwater adhering to the outer surface of the hood 4 has a curved shape of the hood 4 as shown by an arrow in FIG. There is a problem that the water flows down to the left and right sides of the opening along the side and is guided to the wall surface of the building, and further flows down along the wall surface of the building to leave a black sewage mark x, and the appearance of the wall surface of the building is significantly deteriorated.

Further, when a strong wind collides with the wall surface of the building and blows rainwater into the opening 11 of the hood 4, the rainwater passing through the screen 5 immediately enters the ventilation hole insertion portion 1. In addition, rainwater that has once entered the vent insertion portion 1 is blocked by the lower end of the screen 5 and stays there, causing corrosion.

The present invention has been made in view of the above circumstances, and forms rainwater traces due to rainwater adhering to the outer surface of a hood being guided to the wall of a building, and retains rainwater in a vent insertion portion. It is an object of the present invention to provide a ventilation gully that can prevent the occurrence of corrosion due to the above.

[0010]

According to the present invention, there is provided a tubular louver body which can be inserted into a ventilation hole formed in a wall surface of a building and has a flange on the outer periphery of a front opening, and an opening on a front surface of the louver body. A hood for surrounding the hood to prevent rainwater from entering, and a ventilating hood with a ventilable screen for preventing entry of foreign substances and insects into an opening on the front face of the gusset main body. The front portion is formed to be inclined so as to be lower than the rear end, and a bent portion directed outward and upward of the hood is formed in a required range from the rear end of the lower edge of the hood toward the front portion. It is a feature.

In this way, the rainwater attached to the outer surface of the hood and flowing down and reaches the lower edge of the hood moves along the slope of the lower edge of the hood to a position farthest away from the wall of the building. The rainwater that has fallen down from the hood, and the rainwater that has flowed down on the lower edge of the hood that is in contact with the wall of the building and its vicinity is also guided by the bent part and flows away from the wall of the building. It will not run down the wall of the building.

Further, in the louver for vents of the present invention, a vertically extending groove is formed in the lowermost front surface of the flange of the louver main body, and when the hood and the screen are mounted on the flange of the louver main body, It is also possible to configure so that the water that has entered the louver body through the groove can be discharged.

[0013] In this way, even if the rainwater infiltrates the screen through the screen due to a strong wind or the like, the rainwater is discharged to the outside of the glass body through the groove of the flange on the front surface of the glass body. Therefore, it is possible to prevent rainwater from staying in the rattle main body.

Further, in the louver for vents of the present invention, a rising portion may be formed at the lower portion of the inner peripheral surface at the rear end of the main body of the louver to prevent water from penetrating deep into the vent. Then, even if rainwater penetrates deep into the body of the gull through the screen due to a typhoon or the like, it is possible to stop the rainwater at the rising portion.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional side view of an embodiment of the present invention. A ventilation gallery is formed of a cylindrical gallery body 12 that can be inserted into a ventilation port formed on a wall A of a building. A hood 14 is provided to surround the opening 13 on the front surface of the rattle main body 12 and prevent rainwater from entering.

FIG. 2 is a front view of an embodiment of the hood 14, FIG. 3 is a right side view of FIG. 2, FIG. 4 is a rear view of FIG. 2, and FIG. 6 is VI-VI of FIG.
FIG. 7 is a view taken in the direction of the arrow VII-VII in FIG. 3, and the hood 14 is formed in a half dome shape at the front as shown in FIGS. A screen 15 is formed integrally with the hood 14 by die casting or the like at a lower portion of the hood 14.

As shown in FIG. 5, the screen 15 has a horizontal front part and a vertical L-shaped side part at the rear part. Has a possible structure.

As shown in FIG. 2, FIG. 3, and FIG.
A plurality of rainwater guiding grooves 16 having a concave shape are formed on the outer surface to guide rainwater flowing down the outer surface to an appropriate position at the lower end of the hood away from the wall A of the building.

When the hood 14 is viewed from the rear side, as shown in FIG. 4, the hood 14 is formed in a circular shape integrally with the vertical portion at the rear of the screen 15, and around the rear end of the circular shape, a rearwardly facing edging 17 is formed. Is provided, and the inside of the border 17 is
A fitting portion 18 is formed as shown in FIG. The rattle main body 12 (see FIG. 1) is fitted and fixed to the fitting portion 18 as described later. FIG.
In FIG. 5, reference numeral 19 denotes a female screw hole provided rearward for screwing a screw for fixing the rattle main body 12 fitted in the fitting portion 18 of the hood 14, and is provided at three places in the illustrated embodiment. .

At the lowermost part of the rim 17 provided at the rear end of the hood 14, the notch 2 is formed as shown in FIGS.
0 is formed.

Lower edge 21 of half-dome shaped hood 14
As shown in FIGS. 2, 3, and 5, the hood 14 is formed so as to be inclined so that the front portion is lower than the rear end.
The lower edge 21 is the lowest at the front center of the hood 14, and the required range from the rear end of the lower edge 21 of the hood 14 to the front is:
As shown in FIG. 2, FIG. 3, FIG. 4, and FIG.

Next, FIG. 8 is a front view of an example of the embodiment of the rattle body 12, FIG. 9 is a view taken in the direction of arrows IX-IX in FIG.
FIG. 10 is a view in the direction of arrows XX in FIG. 9, wherein the rattle body 12 has an opening 13 on the front surface and can be inserted into a ventilation hole formed in the wall A of the building (see FIG. 1). And a ring-shaped flange portion 24 projecting outside the front opening 13 of the vent insertion portion 23. The diameter of the vent insertion portion 23 is more front than the rear end side. The side has a slightly larger size, and the side wall of the vent insertion portion 23 is a cylindrical wall surface which is inclined so that the front side is slightly opened.

The outer diameter of the flange portion 24 is such that it can fit tightly into the fitting portion 18 inside the rim 17 on the back side of the hood 14 shown in FIG. A screw insertion hole 25 is formed. Further, a groove 26 directed downward is formed on the lowermost front surface of the flange portion 24.

An intermediate portion near the rear end of the ventilation hole insertion portion 23 of the louver body 12 is provided with a step 27 whose diameter is reduced rearward. At the lower part of the inner peripheral surface of the end, a rising part 28 for blocking water from entering the deep part of the ventilation hole is formed.

Here, the step portion 27 is intended to promote the flow of the water dammed by the rising portion 28 to the front, and as shown in FIG. 1 and FIG. The reason why the diameter near the rear end of the twelve vent insertion portions 23 is reduced is that a conventionally known tubular fireproof damper (not shown) can be attached as necessary.

In FIG. 1, reference numeral 29 denotes a screw for fixing the hood 14 to the flange portion 24 of the rattle main body 12, and reference numeral 30 denotes a pull-out for pushing the vent insertion portion 23 of the rattle main body 12 into the vent to fix the same. The stopper fitting 30 is shown.
Are fastened together by the screw 29.

Then, the above-described flange portion 24 of the rattle body 12 is fitted into the fitting portion 18 at the rear end of the hood 14 (see FIG. 1), and a screw insertion hole 25 formed in the flange portion 24 (see FIG. 8). 9), screws 29 are inserted through retaining clips 30 and screwed into female screw holes 19 on the back of the hood 14, and the flange 24 of the rattle body 12 is fixed to the rear end of the hood 14. In this way, the food 14 with the screw 29
And the flange portion 24 of the rattle body 12
When it is fixed together with 0, the lowermost notch 20 of the rim 17 provided at the rear end of the hood 14 is located immediately below the groove 26 on the lowermost front surface of the flange 24.

The ventilation hole insertion portion 23 is inserted into a ventilation hole formed on the wall A of the building, and the edge 17 provided on the back of the hood 14 is brought into close contact with the wall A of the building. The part 23 is fixed to the wall A of the building.

The screen 15 provided integrally with the lower part of the hood 14 does not allow foreign substances and insects to pass through but can ventilate. Therefore, as shown in FIG. The room can be ventilated without foreign substances, insects and the like entering.

The rainwater that has fallen on the outer surface of the hood 14 during rainy weather is guided by the rainwater guide groove 16 (see FIGS. 2, 3 and 6) and flows down toward the lower edge 21 of the hood 14. The rainwater that has fallen on the outer surface of the hood 14 very close to the wall A of the building is guided by the rainwater guide groove 16, flows down the outer surface of the hood 14, and then enters the bent portion 22.

Hood 14 in which bent portion 22 is formed
The lower edge 21 is formed so as to be inclined so that the front part is lower than the rear end as a whole, so that the rainwater entering the bent part 22 passes through the bent part 22 of the building. It flows toward the front of the hood 14 in the direction away from the wall A, and the bent portion 2
Even after exiting 2, the water reaches the front of the hood 14 while merging with other flowing rainwater, and drops downward at the front of the hood 14 where the lower edge 21 of the hood 14 is lowest.

Therefore, the rainwater falling on the outer surface of the hood 14 does not flow down the wall A of the building,
It is possible to prevent a problem that a dark sewage mark x (see FIG. 13) is formed on the wall A of the building.

Further, rainwater is generated by the screen 15 due to strong wind or the like.
Even if the rainwater has penetrated into the louver body 12 through the hood, the rainwater will flow into the groove 26 on the lowermost front surface of the flange portion 24 on the front surface of the louver body 12 and the hood 1 immediately below it.
4 is discharged to the outside of the main body 12 through the cutout portion 20 at the lower end of the rear end, so that rainwater is prevented from staying in the main body 12.

It should be noted that the amount of rainwater that has penetrated into the rattle main body 12 is very small.
There is no worry about the formation.

Further, rainwater is generated by the screen 15 due to a typhoon or the like.
Even if it penetrates deep into the main body 12 through the gutter, it can be blocked by the rising portion 28.

It should be noted that the louver for vents of the present invention is not limited to the above-described embodiment, and that the hood and the screen may be individually configured. Of course, various changes can be made within a range not to be performed.

[0038]

According to the above-mentioned louver for vents of the present invention, the following various excellent effects can be obtained.

(I) According to the invention of claim 1 of the present invention, rainwater that has fallen on the outer surface of the hood, which is very close to the wall of the building, flows down to the bent portion, and then flows out of the bent portion. After flowing through the inside toward the front of the hood away from the wall of the building, after coming out of the bend, it reaches the front of the hood while merging with the rainwater that has flowed down, and the lowest edge of the lower edge of the hood The rainwater that falls on the outer surface of the hood does not flow down the building wall because it drip downwards at the front of the hood, and the dark sewage marks are formed on the building wall. Can be prevented.

(II) According to the second aspect of the present invention, even if rainwater blown up by a strong wind or the like intrudes into the main body of the gull through the screen.
Since it is discharged to the outside of the main body of the rattle through the groove at the lower front surface of the flange part of the front of the main body of the rattle, it is possible to prevent rainwater from staying in the main body of the rattle,
Since rainwater does not stay, corrosion can be prevented from occurring.

(III) According to the third aspect of the present invention, even if rainwater penetrates through the screen to the back of the main body due to a typhoon or the like, it can be blocked at the rising portion.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of an example of an embodiment of the present invention.

FIG. 2 is a front view of an example of the embodiment of the hood.

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is a rear view of FIG. 2;

FIG. 5 is a view in the direction of arrows VV in FIG. 2;

FIG. 6 is a view taken in the direction of arrows VI-VI in FIG. 4;

FIG. 7 is a view taken in the direction of arrows VII-VII in FIG. 3;

FIG. 8 is a front view of an example of the embodiment of the rattle body.

FIG. 9 is a view taken in the direction of arrows IX-IX in FIG. 8;

FIG. 10 is a view as viewed in the direction of arrows XX in FIG. 9;

FIG. 11 is a perspective view showing a conventional example.

FIG. 12 is a vertical side view of the ventilation louver of FIG. 11;

FIG. 13 is a view in the direction of arrows XIII-XIII in FIG. 12;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Gutter body 13 Opening 14 Hood 15 Screen 20 Notch 21 Lower edge 22 Folding part 24 Flange part 26 Groove part 28 Rise part A Building wall

Claims (3)

[Claims] 1. A tubular body that can be inserted into a ventilation hole formed in a wall surface of a building and has a flange on the outer periphery of the front surface, and surrounds the opening on the front surface of the body to prevent rainwater from entering. A hood to be ventilated, comprising a ventilating screen for preventing invasion of foreign matter and insects into the opening of the front of the louver main body, wherein the front edge of the lower edge of the hood is lower than the rear end. A gusset for an air vent, wherein the hood is formed so as to be inclined so as to form a bent portion extending outward and upward from a rear end of a lower edge of the hood toward a front portion thereof. 2. A vertically extending groove is formed in the lowermost front surface of the flange of the gallery body, and water that has entered the gallery body through the groove when a hood and a screen are mounted on the flange of the gallery body. The gusset for vents according to claim 1, wherein the gusset is configured to be able to discharge air. 3. The louver for an air vent according to claim 1, wherein a rising portion for blocking water from penetrating deep into the air vent is formed at a lower portion of an inner peripheral surface of a rear end of the louver main body.