JPH0381053B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a ventilation system for ventilating an attic, a room, etc. of a building.

[Background technology]

Conventionally, a ventilation device is provided on the roof to ventilate the attic and the like. As a ventilation system,
Some have ventilation holes in the roof and cover these ventilation holes with rain covers.

However, the cover only had a ventilation window in one place, and air circulation between the inside and outside of the cover was poor. Therefore, there was a problem in that the ventilation performance of taking in outside air into the attic and discharging the air from the attic to the outside was poor.

Another problem was that rainwater that blown into the cover from the ventilation window entered the attic through the ventilation opening, resulting in poor rain drainage.

[Purpose of the invention]

An object of the present invention is to provide a ventilation device that allows good air circulation between the inside and outside of a cover, improves ventilation performance, and has good rain control.

[Disclosure of the invention]

The ventilation system of this invention has a ventilation hole in the roof,
A ventilation opening is provided on the upper surface covering the ventilation opening, and an inclined surface is formed that slopes downward from the vicinity of the ventilation opening toward the periphery, and this inclined surface is connected to a substantially vertical side surface. A hood is provided above the roof with the lower peripheral edge of the side facing outward along the slope of the roof, and a cover is provided to cover the hood and form a gap between the lower end and the roof. A pair of ventilation windows are provided on opposite sides.

According to the configuration of this invention, the following effects are achieved.

Since ventilation windows are provided on opposite sides of the cover, outside air can easily pass through the cover, improving air circulation between the inside and outside of the cover. Therefore, air intake and exhaust from the ventilation opening can be carried out efficiently, and ventilation performance is improved.

In addition, since the ventilation opening is covered with a hood and a cover, it has a double structure, so even if rainwater blows into the cover from the ventilation window, it will be blocked by the hood, preventing rainwater from entering the attic through the ventilation opening. Moreover, since a space is formed between the cover, the lower end, and the roof, rainwater that has entered the cover can be drained outside, improving rainwater management. Furthermore, the condensed water generated within the hood smoothly descends along the inclined surfaces, side surfaces, and lower peripheral edge of the hood, and flows out to the outside of the hood.

First Embodiment The first embodiment of the present invention is shown in FIGS. 1 to 12.
This will be explained based on the diagram. That is, as shown in FIG.
An inclined surface 3 having a ventilation opening 38 on the upper surface provided above the roof 10 and sloping downward from the vicinity of the ventilation opening 38 toward the periphery.
7 is formed, and this inclined surface 37 is connected to a substantially vertical side surface, and a hood 36 with a lower end peripheral edge 39 of this side surface facing outward along the slope of the roof 10, and a hood 36 that covers this hood 36. The cover 16 is provided along the roof 10 and has a gap 51 between the lower end and the roof 10, and a pair of ventilation windows 18 and 20 are provided on opposite sides of the cover 16.

FIG. 1 is a cross-sectional view of the girder side of the ventilation system, and the ventilation ports 12 and 14 are provided side by side in the direction of inclination of the roof 10. An exhaust pipe 22 and an intake pipe 24 are provided through the ventilation ports 12 and 14, respectively, and the exhaust pipe 22 and intake pipe 24 are supported on the roof 10 by wires (not shown). Exhaust pipe 22, intake pipe 24
The lower end openings 26, 28 open into the attic 30 (or the attic), and the upper end opening 3
2 and 34 open upwardly in the roof 10 and face each other. Further, the lower end opening 2 of the intake pipe 24
8 is provided with a fan 29 for introducing air into the attic 30. Note that the fan 29 is connected to the intake pipe 24.
It may be provided within.

A hood 36 is provided on the upper surface of the roof 10 to cover the exhaust pipe 22 and the intake pipe 24. hood 36
is made of a steel plate or the like, and as shown in FIG.
The upper surfaces on both sides of the ventilation opening 38 form inclined surfaces 37 that are inclined downward along the periphery from the vicinity of the ventilation opening 38 . Further, inside the hood 36, a hood frame 36' as shown in FIG. 3 is provided. Hood frame 3
6' denotes a pair of vertical hood frame members 44 and a pair of vertical hood frame members 46 that are longer than the vertical hood frame members 44.
, a pair of hood horizontal frame members 45 constructed between a pair of hood vertical frame members 44 , a pair of hood horizontal frame members 47 constructed between a pair of hood vertical frame members 46 , and hood vertical frame members 44 and 46 . It is comprised of a pair of horizontal hood frames 48 installed between their upper ends and a pair of horizontal hood frames 49 installed obliquely between the lower ends of the vertical hood frames 44 and 46. In addition, each component frame material 44, 4
5, 46, 47, 48, and 49 are made of L-shaped steel.
The hood 36 is attached to the hood frame 3 as shown in FIG.
6' is placed on the upper surface of the roof 10, and the roof 1
The lower end peripheral edge 39 that covers the rain restraint plate 40 provided on the upper surface of 0 and reaches above the roof tiles 43 is covered by the rain restraint plate 40.
It is fixed with nails. In addition, the rain cover plate 4
0 is fixed to the roof 10 with nails through a base material 42, and there is a space between the rain restraining plate 40 and the base material 42 to prevent rainwater from entering the hood 36, as shown in FIG. In order to
A water draining plate 41 is interposed therebetween, which is bent downward from the outer surface of the drain plate and bent outward.

The cover 16 is provided above the roof 10 to cover the hood 36. 50 and 52 are wall panels facing each other of the cover 16, and face materials 50c and 5 are provided on both sides of the outer frames 50a and 52a and the middle crosspieces 50b and 52b.
2c, and a ventilation window 18 at the upper end,
It has 20. As shown in FIG. 5, the wall panel 52 is fixed at both ends to the hood vertical frame member 44 via fixtures 54. The fixture 54 is the sixth
As shown in the figure, two L-shaped metal fittings 56 and 58 are butted against each other and fixed with bolts 60 and nuts 62. The fixture 54 is provided by fixing an L-shaped metal fitting 56 to the hood vertical frame member 44 with screws and fixing an L-shaped metal fitting 58 to the wall panel 52 with screws. Also,
66 is a louver provided on the outside of the ventilation window 20;
A louver frame 68 at the side end is fixed to the wall panel 52. In FIG. 1, wall panel 50
Also, both ends are fixed to the hood vertical frame member 46 using fittings 72 similar to the fittings 54. Further, a louver 74 is provided outside the ventilation window 18. Note that the wall panels 5 on each side of the cover 16
A space 51 is formed between the lower end of the roof 10 and the roof 10.

FIG. 7 is a partially cutaway front view of the end side of the ventilator. In the figure, 82 is a wall panel of the cover 16. The mounting state of this wall panel 82 is similar to that shown in FIG. 8, which shows the mounting state of a wall panel 84 facing the wall panel 82. Wall panels 82, 84
The facing materials 82b and 8 are provided on both sides of the outer frames 82a and 84a.
4b is attached. The wall panel 84 is
Both ends are attached to the hood vertical frame member 4 via the mounting members 86.
It is fixed at 4,46. That is, the mounting member 86 is made of Z-shaped steel, and one flange 86a is attached to the vertical frame portion of the outer frame member 84a of the wall panel 84 with the bolt 8.
8. Fix with nut 90 and attach the other flange 86b
are fixed to the hood vertical frame members 44, 46 with bolts and nuts. Furthermore, a louver 94 is provided on the outer surface material 84b of the wall panel 84 by fixing a louver frame 92 with wood screws. In addition, the seventh
In the figure, the wall panel 82 is similarly provided with both ends fixed to the hood vertical frame members 44, 46 via mounting members 96 made of Z-shaped steel, and louvers 98 are provided on the outer surface of the panel 82b. is provided. However, the louvers 94 and 98 are the louvers 6 on the girder side.
6 and 74, and the wall panels 82 and 84 are not provided with ventilation windows.

FIG. 9 is a partial sectional view of the roof of the cover 16. In the figure, 78 is a roof panel, and the roof panel 78 is composed of a frame material 100 and face materials 102 and 103 attached to both sides of the frame material 100. A base material 104 made of a square lumber passes through the center of the upper surface of the face material 103, and a waterproof sheet 106 covers the upper surface of the face material 103 and the base material 104. Further, a roof panel cover 108 is provided to cover the upper surfaces of the base material 104 and the roof panel 78. The roof panel cover 108 is fixed to the base material 104 and the facing material 103 with wood screws 110 at the center, and with wood screws 11 at the outer periphery.
2 to fix it to the face material 103 and the frame material 100. Furthermore, a decorative louver 80 is provided on the entire outer circumferential surface of the roof panel 78 and is fixed to the frame member 100 with wood screws 114. Furthermore, a sealing material 115 is filled between the roof panel 78 and the wall panel 82 facing material 82b.

FIG. 10 is a partially cutaway plan view of the ventilation device. Note that the exhaust pipe 22 and intake pipe 24 are omitted.

FIG. 11 is an external view of the ventilation system. In the figure, 120 is a ridge of the roof 10, and an antenna 118 is attached to the outer surface of the wall panel 84 of the cover 16 via an antenna attachment device 116.

According to the ventilation system constructed in this manner, the ventilation windows 18 and 20 are provided on the wall panels 50 and 52 facing each other of the cover 16, so that, for example, as shown in FIG. As the outside air comes in, the air inside the cover 16 comes out to the outside through the ventilation window 20, and the air circulation between the inside and outside of the cover 16 is improved. Therefore, when the fan 29 is driven, the outside air that has entered the cover 16 through the ventilation window 18 is sucked into the hood 36 through the ventilation opening 38 of the hood 36, passes through the upper opening 34 into the intake pipe 24, and is drawn into the lower opening. 28 to attic 30
be forcibly introduced. When outside air is introduced into the attic 30, the warm air that has been in the attic 30 is discharged from the lower opening 26 through the exhaust pipe 22 and into the hood 36 from the upper opening 32. The air discharged into the hood 36 reaches the inside of the cover 16 through the ventilation opening 38 and is led out to the outdoors through the ventilation window 20, thereby cooling the attic 30. In this way, when the air circulation between the inside and outside of the cover 16 is improved, the air circulation between the outdoors and the attic 30 is also improved, the intake and exhaust efficiency is improved, and the ventilation performance is improved. That is, the attic 30 can be cooled with outside air to cool the inside of the building, or the attic 30 can be prevented from becoming damp.

Also, the exhaust pipe 22 and intake pipe 24 are connected to the hood 3.
Since it has a double structure covered by 6 and cover 16,
Even if rainwater enters the cover 16 through the ventilation windows 18 and 20 of the cover 16, the ventilation opening 3 of the hood 36
8, it falls onto the slope 37 on the upper surface of the hood 36 and travels along the outer surface of the hood 36, causing the wall panels 50, 52, 82, and 8 of the cover 16 to fall.
It flows out of the cover 16 from the gap 51 between the lower end of the cover 4 and the roof 10. Moreover, ventilation windows 18, 2
Since louvers 74 and 66 are provided at 0,
Rainwater leaks from the exhaust pipe 22, intake pipe 24 and ventilation opening 1.
It is possible to prevent rain from entering the attic 30 through the pipes 2 and 14, and improve the drainage.

Further, as shown in FIG. 12, the upper piece of the hood 36 is inclined downward from the ventilation opening 38 toward the periphery, and the lower end peripheral edge 39 is bent outward to form a step. Therefore, the condensed water w generated inside the hood 36 is deposited on the slopes, sides, etc. inside the hood 36.
It smoothly descends along the lower edge and flows out to the outside of the hood 36. In this way, the hood 36 is better protected against rain.

Furthermore, the cover 16 is provided by fixing the wall panels 52, 50 to the hood frame 36' with mounting members 54, 72, respectively, and fixing the wall panels 84, 82 to the hood frame 36' with mounting members 86, 96, respectively. It is being In this way, the cover 16 is directly connected to the roof 1.
Since it is not fixed at 0, when a load is applied to the cover 16 from the outside, the cover 16 tilts to follow the external force, and when the external force disappears, it returns to its original position and responds flexibly. Therefore, the strength of the cover 16 against external forces, changes over time, repeated heating and cooling, etc. is improved.

Note that the intake pipe 24 may not be provided with the fan 29 and natural ventilation may be provided, or a ventilation port may be simply provided in the roof 10 without passing the pipe.

Further, in this embodiment, the ventilation holes 12 and 14 are arranged side by side in the direction of inclination of the roof 10, but they may be arranged in a direction perpendicular to the direction of inclination of the roof 10.

In addition, an intake pipe is provided in the ventilation port 12, and the ventilation port 14 is provided with an intake pipe.
An exhaust pipe may be provided.

Further, ventilation holes may be provided in the upper portions of the wall panels 82 and 84 of the cover 16 so that outside air can enter from the entire circumference of the cover 16.

Furthermore, the cover 16 may be fixed directly to the roof 10.

Second Embodiment The second embodiment of this invention is shown in Figures 13 to 1.
This will be explained based on FIG. Note that the same parts as in the first embodiment are given the same reference numerals, and the explanation thereof will be omitted. That is, the ventilation system of this example has the 14th
As shown in the figure, the lower end peripheral edge 39' of the hood 36'' that covers the ventilation holes 12, 14 is bent outward and diagonally downward.The hood 36'' is placed on the upper surface of the roof 10, and the lower end The peripheral edge portion 39' is interposed between the flashing plate 40 and the base material 42. Furthermore, as shown in FIG.
0, a rain flashing cover 120 is provided by fixing the flashing plate 40, the lower end peripheral edge 39' of the hood 36'', the base material 42, and the roof 10 with nails. Figures 3 and 5
The configuration is similar to that of the first embodiment shown in FIGS.

The ventilation system configured in this manner also provides the following effects: improved ventilation performance, increased strength of the cover 16, and improved rain protection.

Further, since the lower end peripheral edge 39' of the hood 36'' is bent outward and diagonally downward and interposed between the flashing plate 40 and the base material 42, the hood 36''
The lower end peripheral edge 39' of the hood 36'' functions as a drainer. In this way, the lower end peripheral edge 39' of the hood 36'' functions as a drainer, which eliminates the need to separately provide a drain plate and improves the ease of implementation.

In addition, if a separate drainage board is installed, there is a risk that rainwater may enter through the joint between the drainage board and the hood 36'', but as in this embodiment, the hood 36'' also has the function of a drainage system. , the rain performance becomes even better.

〔Effect of the invention〕

According to the ventilation device of the present invention, the following effects can be obtained.

Since ventilation windows are provided on opposite sides of the cover, outside air can easily pass through the cover, improving air circulation between the inside and outside of the cover. Therefore, air intake and exhaust from the ventilation opening can be carried out efficiently, and ventilation performance is improved.

Since the ventilation opening is covered with a hood and a cover, it has a double structure, so even if rainwater blows into the cover from the ventilation window, it will be blocked by the hood, preventing rainwater from entering the attic etc. from the ventilation opening. Moreover, since a gap is formed between the lower end of the cover and the roof, rainwater that has entered the cover can be drained outside, improving rainwater drainage. Furthermore, an inclined surface is formed that slopes downward from the vicinity of the ventilation opening of the hood toward the periphery, and this inclined surface is connected to a substantially vertical side surface, and the lower end of this side surface is connected to the slope of the roof. Since the hood faces outward along the hood, the condensed water generated inside the hood smoothly descends along the slopes, side surfaces, and lower edge of the hood, and flows out to the outside of the hood.
For this reason, the hood's rain protection becomes even better.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the first embodiment of the invention, FIG. 2 is a perspective view of the hood, FIG. 3 is a perspective view of the hood frame, FIG. 4 is a partially enlarged sectional view, and FIG.
The figure is a partially enlarged sectional view, FIG. 6 is a perspective view of the fixture, FIG. 7 is a cutaway front view, FIG. 8 is a partially enlarged sectional view, and FIG. 9 is a partially enlarged sectional view.
FIG. 10 is a partially cutaway plan view, FIG. 11 is a perspective view, FIG. 12 is an explanatory diagram showing how the rain is cleared, FIG. 13 is a sectional view of the second embodiment of the invention, and FIG. The figure is a perspective view of the hood, and FIG. 15 is a partially enlarged sectional view thereof. 10... Roof, 12, 14... Ventilation vent, 16...
... Cover, 18, 20 ... Ventilation window, 36 ... Hood, 38 ... Ventilation opening, 37 ... Inclined surface, 3
9... lower end periphery, 51... = between.

Claims (1)

[Claims] 1. A ventilation opening provided in the roof, and a slope surface that is provided above the roof covering the ventilation opening, has a ventilation opening on the upper surface, and slopes downward from the vicinity of the ventilation opening toward the periphery. a hood with a sloping surface connected to a substantially vertical side surface and a lower peripheral edge of the side surface facing outward along the slope of the roof; A ventilation system comprising a cover forming a space between the cover and the roof, and a pair of ventilation windows provided on opposite sides of the cover.