JPH0311640Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a ventilation system for ventilating the attic and interior 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, which are covered with rain-protecting hoods with ventilation windows.

However, since the ventilation window is fixed to the hood, there is a problem that if the wind direction changes, it becomes impossible to draw outside air into the hood. Therefore, the ventilation performance, which takes outside air into the attic and discharges air from the attic to the outside, was poor.

Therefore, as disclosed in Japanese Utility Model Application Publication No. 58-158238, a ventilation system has been proposed in which the ventilation opening is always directed upwind by a wind direction plate, thereby increasing the ventilation efficiency.

However, in the case of the proposed ventilation system, a manually opened/closed valve is installed to prevent rainwater from blowing in from the vents exposed outdoors.
There was a high risk of rainwater blowing in due to forgetting to close the door. Moreover, the cylindrical ventilation system was exposed on the roof, making it look unsightly.

[Purpose of invention]

The purpose of this invention is to provide a ventilation device that has excellent ventilation performance and waterproofness, and has a good appearance.

[Disclosure of invention]

The ventilation system of this invention has a ventilation hole provided in the roof, and a pair of hood ventilation windows provided above the roof covering the ventilation hole and movable in the circumferential direction at opposing positions on the circumferential surface at the upper end. a hood formed with a cylindrical part for ventilation; a wind direction plate provided in conjunction with the hood ventilation window and rotated depending on the wind direction to position the pair of hood ventilation windows in the ventilation direction; and a wind direction plate provided to cover the hood. The cover is provided with a cover ventilation window formed at approximately the same height as the hood ventilation window on the entire circumferential surface thereof.

According to the structure of this invention, the pair of hood ventilation windows provided in the hood are positioned in the ventilation direction by the wind direction plate, so even if the wind direction changes, air can circulate smoothly inside and outside the hood. Ventilation performance is improved. Furthermore, since the hood is covered with a cover, waterproof performance and appearance are improved.

〔Example〕

An embodiment of this invention will be explained based on FIGS. 1 to 12. That is, as shown in FIG. 1, the ventilation system of this embodiment includes ventilation holes 12 and 14 provided in a roof 10, and a peripheral surface provided above the roof 10 covering the ventilation holes 12 and 14. a hood 36 having ventilation windows 126, 128 that are movable in the circumferential direction;
26 is located upwind.

FIG. 1 is a sectional view of the girder side of the ventilation system, in which ventilation holes 12 and 14 are provided side by side in the direction of inclination of the roof 10. There is an intake pipe 2 inside the ventilation ports 12 and 14.
2. An exhaust pipe 24 is provided through it, and the intake pipe 22 and exhaust pipe 24 are connected to the roof 10 with wires (not shown).
It is supported by The lower end openings 26 and 28 of the intake pipe 22 and the exhaust pipe 24 open into the attic 30 (or the attic), and the upper end openings 32 and 28 open into the attic 30 (or the attic).
34 are open above the roof 10 and face each other. Further, a fan 29 is provided at the lower end opening 26 of the intake pipe 22 to introduce air into the attic 30. Note that the fan 29 may be provided within the intake pipe 22.

A hood 36 is provided on the upper surface of the roof 10 to cover the intake pipe 22 and the exhaust pipe 24. hood 36
The hood 36 is made of a copper plate or the like, and as shown in FIG. An inclined surface 37 is inclined downward from the vicinity of the cylindrical portion 38 to the periphery thereof. Further, as shown in FIG. 3, the ventilation cylindrical part 38 is composed of a lower part 38b rising from the inclined surface 37, and an upper part 38a disposed above the lower part with a space 120 interposed therebetween. The upper part 38a and the lower part 38b are connected by a plurality of connectors 122, and the upper part 38a
In the space 120 with the lower part 38b, there is an upper part 38a.
The annular body 124 is rotatably provided along a guide formed by bending the lower edge and the upper edge of the lower part 38b inward. The annular body 124 is provided with hood ventilation windows 126, 128 (see FIG. 1) at opposing positions.

Furthermore, a crosspiece 130 is installed on the inner surface of the lower portion 38b, and a hole 132 is provided on the upper surface of the upper portion 38a. 134 is a vertical shaft that is inserted into this hole 132 and whose lower end is supported by a bearing 136 provided on the crosspiece 130, and a wind direction plate 138 is attached to the upper end of the vertical shaft 134. Further, a horizontal shaft 140 having both ends fixed to the inner surface of the annular body 124 is fixed to the vertical shaft 134 . Note that the wind direction plate 138 and the annular body 124 are
The longitudinal axes 134 are aligned with each other so that the hood ventilation window 126 is located upwind when the wind direction plate 138 faces the wind direction.
and is connected via a horizontal shaft 140. Additionally, inside the hood 36, there is a hood frame 3 as shown in FIG.
6' is provided. The hood frame 36' includes a pair of vertical hood frames 44, a pair of vertical hood frames 46 longer than the vertical hood frames 44, and a pair of horizontal hood frames constructed between the pair of vertical hood frames 44. Material 45
, a pair of hood horizontal frame members 47 constructed between a pair of hood vertical frame members 46 , a pair of hood horizontal frame members 48 and hood vertical frame members 44 , 46 constructed between the upper ends of the hood vertical frame members 44 , 46 . It is composed of a pair of hood horizontal frame members 49 installed at an angle between the lower ends of the hood. In addition, each component frame material 44, 45, 46, 47,
48 and 49 are made of L-shaped steel. As shown in FIG. 1, the hood 36 has a hood frame 36' placed on the upper surface of the roof 10, and a lower end that covers the flashing plate 40 provided on the upper surface of the roof 10 and reaches above the roof tiles 43. The peripheral edge portion 39 is fixed to the rain cover plate 40 with nails. Further, the flashing board 40 is fixed to the roof 10 with nails via a base material 42, and the flashing board 40
0 and the base material 42, as shown in FIG. A water draining plate 41 formed by bending the drain plate 41 is interposed.

In Fig. 1, 16 is a cover, and the hood 3
6 and is provided above the roof 10. 5
0 and 52 are wall panels facing the cover 16, including outer frames 50a and 52a and middle crosspieces 50b and 52.
It is constructed by pasting face materials 50c and 52c on both sides of b, and has cover ventilation windows 18 and 20 at the top. As shown in FIG. 6, the wall panel 52 is fixed at both ends to the hood vertical frame member 44 via fixtures 54. As shown in FIG. 7, the fixture 54 is made by butting two L-shaped metal fittings 56 and 58 together.
It is fixed with bolts 60 and nuts 62.
The fixture 54 connects the L-shaped hardware 56 to the hood vertical frame material 44.
The L-shaped hardware 58 is fixed to the wall panel 52 with screws. Moreover, 66 is a louver provided on the outside of the cover ventilation window 20, and the louver frame 68 at the side end portion is fixed to the wall panel 52. In FIG. 1, the wall panel 50 is also provided with its both ends fixed to the hood vertical frame member 46 using fixtures 72 similar to the fixtures 54. Further, the cover ventilation window 18 is provided with a louver 74.

FIG. 8 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. 9, 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, and has cover ventilation windows 83 and 85 at the top. The wall panel 84 has both ends attached to the hood vertical frame members 44, 4 via attachment members 86.
It is fixed at 6. That is, the mounting member 86 is made of Z-shaped steel, one flange 86a is fixed to the vertical frame portion of the outer frame member 84a of the wall pallet 84 with bolts 88 and nuts 90, and the other flange 86b is fixed to the vertical frame member 44 of the hood vertical frame member 84, 46 with bolts and nuts. In addition, a louver frame 92 is fixed to the outside of the cover ventilation window 85 with wood screws, and the louver 94 is fixed to the outside of the cover ventilation window 85.
is provided. In addition, in FIG. 8, the wall panel 82 is similarly provided with its both ends fixed to the hood vertical frame members 44 and 46 via Z-shaped steel mounting members 96, and the cover ventilation window 83
A louver 98 is provided on the outside.

FIG. 10 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 100 and face materials 102 and 103 attached to both sides of a frame material 100.
At the center of the upper surface of the facing material 103 is a base material 1 made of square timber.
04 passes through, and a waterproof sheet 106 covers the upper surface of the face material 103 and the base material 104. Furthermore, the base material 104 and the roof panel 7
A roof panel cover 108 is provided to cover the upper surface of 8. The roof panel cover 108 is attached to the base material 104 and the face material 10 with wood screws 110 at the center.
3, and the outer peripheral portion is fixed to the face material 103 and the frame material 100 with wood screws 112. 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 sealant 1 is provided between the roof panel 78 and the face material 82b of the wall panel 82.
15 is filled.

FIG. 11 is a partially cutaway plan view of the ventilation device. Note that the wind direction plate 138 is omitted.

FIG. 12 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. Further, a vertical axis 134 passes through the roof of the cover 16, and a wind direction plate 138 is located above the roof.

According to the ventilation system configured in this way, the wind direction is detected by the wind direction plate 138 and the hood ventilation window 12
6 is always located upwind. Therefore, even if the wind direction changes, the outside air blown into the cover 16 can be reliably taken into the hood 36 through the hood ventilation window 126. That is, when the fan 29 is driven, the outside air blown into the cover 16 through the ventilation window 18 is sucked into the hood 36 through the hood ventilation window 126 of the hood 36, passes through the opening 32 into the intake pipe 22, and flows into the lower opening 26. It is forcibly introduced into the attic 30 from the inside. 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 28 through the exhaust pipe 24 and into the hood 36 from the upper opening 34. The air discharged into the hood 36 reaches the inside of the cover 16 through the hood ventilation window 128 and is led outside through the cover ventilation window 20 to cool the attic 30. in this way,
Since the hood ventilation window 126 is always located upwind,
Enables reliable intake of outside air and improves ventilation performance. Therefore, 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.

In addition, the wall panels 50, 5 facing the cover 16
2 or 82, 84 with cover ventilation windows 18, 20
Alternatively, since the ventilation holes 83 and 85 are provided, for example, as shown in FIG.
The outside air enters the inside, and the air inside the cover 16 comes out to the outside through the cover ventilation window 20, improving air circulation between the inside and outside of the cover 16. Further, the hood ventilation windows 126 and 128 are also provided opposite each other, so that air circulation within the hood 36 is improved. For this reason, outdoor and attic 3
The air circulation between 0 and 0 improves, the intake and exhaust efficiency improves, and the ventilation performance improves. Moreover, the cover ventilation windows 18, 20, 83, 85 and the hood ventilation window 12
6 and 128 are provided at approximately the same height, the airflow generated between the cover ventilation windows 18, 20, 83, and 85 is used to actively intake and exhaust air from the hood ventilation windows 126 and 128, improving ventilation performance. Improve even further.

In addition, the intake pipe 22 and the exhaust pipe 24 are connected to the hood 3.
Since it has a double structure covered by 6 and cover 16,
Cover ventilation window 18, 20, 83, 8 of cover 16
Even if rainwater enters into the cover 16 from the hood 3
Since there is a distance to the cover ventilation windows 126 and 128 of No. 6, the liquid falls on the slope 37 on the upper surface of the hood 36 and flows through the hood 36 to the outside of the cover 16. Moreover, the cover ventilation windows 18, 20, 83,
Since the louvers 85 are provided with louvers 74, 66, 98, and 94, rainwater can be prevented from entering the attic 30 through the intake pipe 22, exhaust pipe 24, and ventilation openings 12, 14, and rainwater can be effectively shut off. Become.

Also, since the hood 36 is covered with the cover 16,
Improves appearance.

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. As a result, the strength of the cover 16 against external forces, changes over time, repeated cold and warm temperatures, etc. is improved.

Moreover, the upper part 38a and the lower part 3 of the ventilation cylindrical part 38
Only a shielding plate for blocking wind may be provided in the space 120 between 8b. In addition, the shielding board shall be a wind direction board that shields areas other than windward and leeward. In this way, if only the shielding plate is provided within the space 120,
The structure is simple, the weight is small, and it can be easily rotated.

Further, the intake pipe 22 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 a pipe.

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

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.

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

(Effects of the invention) According to the ventilation system of this invention, the pair of hood ventilation windows provided in the hood are positioned in the ventilation direction by the wind direction plate, so even if the wind direction changes, the air inside and outside the hood remains unchanged. Smooth distribution and improved ventilation performance. Furthermore, since the hood is covered with a cover, the waterproof performance and appearance are improved.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an embodiment of the invention, Fig. 2 is a perspective view of the hood, Fig. 3 is a partial sectional view of the hood, Fig. 4 is a perspective view of the hood frame, and Fig. 5 is a perspective view of the hood.
6 is a partially enlarged sectional view thereof, FIG. 7 is a perspective view of the fixture, FIG. 8 is a cutaway front view thereof, and FIG. 9 is a partially enlarged sectional view thereof.
FIG. 10 is a partially enlarged sectional view, FIG. 11 is a partially cutaway plan view, and FIG. 12 is a perspective view. 10... Roof, 12, 14... Ventilation vent, 16...
... Cover, 18, 20, 83, 85 ... Cover ventilation window, 36 ... Hood, 38 ... Cylindrical part for ventilation,
126, 128...Hood ventilation window, 138...Wind direction board.

Claims (1)

[Scope of utility model registration request] A ventilation cylindrical part is formed, which includes a ventilation opening provided in the roof, and a pair of hood ventilation windows provided above the roof covering the ventilation opening and having a pair of hood ventilation windows movable in the circumferential direction at opposing positions on the circumferential surface at the upper end. a wind direction plate that is provided in conjunction with the hood ventilation window and rotates depending on the wind direction to position the pair of hood ventilation windows in the ventilation direction; and the hood that is provided to cover the hood and has an entire circumferential surface. A ventilation system comprising a ventilation window and a cover forming a cover ventilation window at approximately the same height.