JP3356998B2 - Gutter for ventilation - Google Patents

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. 4 to FIG. 6 show an example of a conventional vent gallery. This type of vent gallery can be inserted into a vent formed in a wall A of a building (see FIG. 5). A louver body 2 having a cylindrical vent insertion portion 1, and a hood 4 surrounding the entrance 3 of the louver body 2 to prevent rainwater from entering.
And a permeable screen 5 for preventing invasion of foreign substances and insects into the entrance 3 of the louver body 2 by pressing or extruding a plate material such as aluminum. Of the hood 4 and a flange 7 formed at the base end of the hood 4 are overlapped with a screen 5 interposed therebetween, and are integrally assembled with rivets 8.

[0004] In addition, the ventilation hole insertion portion 1 of the rattle body 2
At several places (three to four places) in the circumferential direction on the outer peripheral surface of, a retaining metal fitting 9 for pushing the vent insertion portion 1 into the vent and fixing the vent insertion part 1 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 vents as described above, strong wind is generated on the wall A.
When rainwater is blown up into the opening 11 of the hood 4 due to collision with the water, the rainwater that has passed through the screen 5 immediately enters the ventilation hole insertion portion 1, and There was a problem that the rainwater that had invaded the pit caused corrosion.

The present invention has been made in view of the above circumstances, and provides a gutter for an air vent in which rainwater can be reliably prevented from entering into the air hole insertion portion by a screen to prevent the occurrence of corrosion. It is intended to be.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a flange portion engageable with a wall surface of a building is integrally formed at one end of a cylindrical ventilation hole insertion portion insertable into a ventilation hole formed in a wall surface of the building. A formed louver body, a hood surrounding the inlet opening on the flange side of the louver body to prevent rainwater from entering, and a ventilator to prevent foreign matter and insects from entering the inlet of the louver body. A ventilation gutter having a screen, wherein the screen is doubled in the ventilation direction by a vertically arranged front row lattice and a rear row lattice which are stood upright so as to close an entrance of the gutter body. At the same time, the front row grid and the rear row grid are supported at their upper ends, and the lower side is suspended, and the front row grid and the rear row grid form a mountain shape with the front row grid facing outdoors and the rear row grid is placed outdoors. Valley shape toward Is characterized in that it has formed are denoted by the V-shaped cross-section oppositely directed such that they form.

When the strong wind collides with the wall surface and blows rainwater into the opening of the hood, the air that has entered the hood with the rainwater stitches the gap between the front row grid and the back row grid. In this way, the rainwater flows into the ventilation hole insertion part of the garbage body, but the rainwater enters the screen with a relatively linear motion due to the inertia force due to its own weight,
Most of them collide with the front row grid and are prevented from entering the vent insertion section, and rainwater that has passed through the gaps in the front row grid also collide with the rear row grid and is prevented from entering the vent insertion section. Therefore, the penetration rate of rainwater into the ventilation hole insertion portion is greatly reduced.

In addition, rainwater that has collided with the front and rear grids forming the screen flows down along the front and rear grids and drops from the lower ends thereof, so that the rainwater caught by the screen forms a wall. Avoiding run-off.

[0012]

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

FIGS. 1 to 3 show an embodiment of the present invention. In the drawings, reference numeral 12 denotes a cylindrical vent which can be inserted into a vent formed on a wall A of a building (see FIG. 1). Insertion part 13
A gully body 15 integrally formed with a flange portion 14 which can be locked to the wall A of the building at one end of the gutter body 15 surrounds an entrance 16 opening on the flange portion 14 side of the gully body 12 to prevent rainwater from entering. A half dome-shaped hood 17 is a ventilable screen for preventing foreign substances and insects from entering the entrance 16 of the rattle body 12, and the screen 17 is composed of a front row grid 18 and a rear row grid 19 which are alternately arranged. And the front row grid 18
And the back row grid 19 are formed to have V-shaped cross sections that are opposite to each other so that the front row grid 18 forms a mountain shape toward the outside and the back row grid 19 forms a valley shape toward the outside (particularly in FIG. 2, and in FIG. 3, a dashed line indicates a ridge line of the front row lattice 18, and a two-dot chain line indicates a valley line of the back row lattice 19).

In particular, in this embodiment, the screen 17 is arranged so as to stand upright in the vertical direction so as to close the entrance 16 of the rattle main body 12.
A front row grid 18 and a back row grid 19 forming the screen 17
Are extended in the vertical direction, the upper end thereof is supported, and the lower end is suspended.

Here, an opening 20 on the lower surface of the hood 15 is provided.
Is designed to open greatly to the position where the lower part of the front row lattice 18 and the rear row lattice 19 is opened.

The ventilation hole insertion portion 1 of the rattle main body 12
3 and a flange portion 14 formed at one end of the hood 15
The flange 21 formed at the base end of the screen 1
7 are overlapped with each other with a flange portion 22 formed on the outer periphery of the upper half portion interposed therebetween, and these are integrally assembled at a plurality of positions (three to four positions) in the circumferential direction by rivets 23.

At several places (three to four places) in the circumferential direction on the outer peripheral surface of the ventilation hole insertion portion 13 of the louver main body 12, stopper fittings for pushing the ventilation hole insertion portion 13 into the ventilation hole and fixing the same. 24 is attached via a rivet 25.

When a strong wind collides with the wall A and blows rainwater into the opening 20 of the hood 15, the air that has entered the hood 15 with the rainwater is separated by the gap between the front row grid 18 and the rear row grid. Twisting and bending into the gap of 19 and flowing into the ventilation hole insertion part 13 of the rattle body 12, but the rainwater enters the screen 17 by a relatively linear motion due to the inertia force of its own weight. Most of the water collides with the front row grid 18 and is prevented from entering the ventilation hole insertion section 13. Also, the rainwater that has passed through the gap between the front row grid 18 also collides with the rear row grid 19 and the ventilation hole insertion section 13 Since the intrusion into the inside is prevented, the rate of intrusion of rainwater into the ventilation hole insertion portion 13 is greatly reduced.

In this embodiment, the screen 1
The rainwater that has collided with the front row grid 18 and the back row grid 19 that forms the water 7 flows down along the front row grid 18 and the back row grid 19 and drops from the lower ends thereof. It is avoided that it runs down.

Therefore, according to the above embodiment, even if the strong wind collides with the wall A and blows the rainwater into the opening 20 of the hood 15, the screen 17 ensures that the rainwater enters the ventilation hole insertion portion 13. Since it can be prevented, the occurrence of corrosion due to rainwater can be reliably prevented.

Further, since it is possible to prevent rainwater caught by the screen 17 from flowing down the wall A, it is possible to prevent a problem that black soil marks are formed on the wall A. it can.

It should be noted that the louver for vents of the present invention is not limited to the above-described embodiment, and various shapes other than those shown in the figures can be adopted for the shape of the hood. Various methods can be adopted for the method of attaching the screen to the hood, and various methods can also be adopted for the method of attaching the retaining fittings to the rattle body. Others that do not depart from the gist of the present invention. It is needless to say that various changes can be made within.

[0023]

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

(I) Even if a strong wind collides with the wall surface and blows rainwater into the opening of the hood, the rainwater is surely introduced into the ventilation hole insertion part by the screens of the alternately arranged front and rear grids. So that
Corrosion due to rainwater can be reliably prevented.

(II) Since it is possible to prevent rainwater caught by the screen from flowing down the wall of the building, it is possible to prevent a problem that black soil marks are formed on the wall. it can.

[Brief description of the drawings]

FIG. 1 is a side sectional view partially showing an example of an embodiment of the present invention in a sectional view.

FIG. 2 is a view in the direction of arrows II-II in FIG.

FIG. 3 is a sectional view taken along the line III-III of FIG. 1 and showing a right half in cross section.

FIG. 4 is a perspective view showing a conventional example.

FIG. 5 is a side cross-sectional view of the vent gallery in FIG. 4;

6 is a view in the direction of arrows VI-VI in FIG. 5;

[Explanation of symbols]

 Reference Signs List 12 Gully body 13 Vent insertion part 14 Flange part 15 Hood 16 Inlet 17 Screen 18 Front row grid 19 Back row grid 20 Opening A Wall

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24F ^7/ 04-7/06

Claims (1)

(57) [Claims] 1. A rattle main body comprising: a tubular vent insertion portion insertable into a vent formed in a wall of a building; For a vent provided with a hood that surrounds an entrance opening on the flange portion side of the rattle body to prevent rainwater from entering, and a ventilable screen that prevents foreign matter and insects from entering the entrance of the rattle body. A screen, wherein the screen is doubled in the ventilation direction by a front row grid and a rear row grid which are vertically arranged so as to close an entrance of the glass body and are alternately arranged, and the front row grid and the rear row grid are formed. And the upper end of each is supported, and the lower end is suspended in the air,
In addition, the front row grid and the rear row grid are formed to have V-shaped cross sections that are opposite to each other so that the front row grid has a mountain shape facing the outdoors and the rear row grid has a valley shape facing the outdoors. Gutter for vents.