JPH0624510Y2 - Ventilation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a ventilation device for indoor ventilation of a house.

[Conventional technology]

Conventionally, indoor ventilation of a house is performed as shown in FIG. Indoor air is guided to a ventilation device 52 provided on a roof 51 through a duct 50 provided at the back of the hut.

The structure of the ventilation device 52 is, for example, as shown in FIG.
The duct 50 opens at the bottom of the ventilation device 52, and the ventilation device 5
Some of the second box 53 is exhausted through the top opening of the box 53. Also, as shown in FIG.
The duct 50 makes a U-turn in the ventilation device 52, and the box 5
There is also one connected to the upper surface of No. 4. Further, as shown in FIG. 8, there is also one in which the duct 50 is connected to the lower surface of the box 55.

[Problems to be solved by the device]

However, in the example of FIGS. 6 and 7, in the ventilation device 52, a passage for air and a passage for the duct 50 must be provided on the sides of the boxes 53, 54, and the box
There is a problem that the cross-sectional area of 3, 54 becomes small and the ventilation efficiency decreases. Also, in the example of FIG.
There was a problem that rainwater entering through the openings at both ends of No. 5 entered into the duct 50.

Therefore, an object of the present invention is to provide a ventilation device which has good ventilation efficiency and can prevent rainwater from entering the duct.

[Means for Solving the Problems]

The ventilation device of the present invention includes a ventilation opening provided on the roof, a box-shaped main body having an opening formed over substantially the entire width on a pair of side surfaces provided on the upper surface of the roof to cover the ventilation opening, and The ventilation box and the attic ventilation box with ventilation windows that are arranged side by side over the entire width of the side where the opening of the main body is formed inside the main body and are joined to both openings of the main body at each end Inside the protrusion, the protrusion formed on the top surface, the ventilation opening formed on the top of the attic ventilation box, and the ventilation opening that penetrates the bottom end indoors and the top end penetrates the bottom surface of the ventilation box into the ventilation box. It is provided with a duct opened to.

[Action]

According to the ventilation device of this invention, the duct is inserted into the ventilation box from the lower surface of the ventilation box, and it is not necessary to provide a duct passage or an air passage on the side of the ventilation box in the main body. The cross-sectional area can be maximized, improving ventilation efficiency. Moreover, since the ventilation box and the attic ventilation box are installed side by side over almost the entire width of the main body, the space inside the main body can be effectively used and the ventilation efficiency is further improved. In addition, the upper end of the duct inserted into the ventilation box is open in the protrusion on the top of the ventilation box,
Even if rainwater enters through the ventilation window of the ventilation box, it will not enter the duct.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is an assembly state diagram thereof, and FIG. 2 is an exploded view of each component. In the figure, 10 is a roof, 11 is a rafter, and 12 is a base plate. A ventilation port 13 is formed in the base plate 12. A frame 14 is provided on the upper surface of the roof 10 so as to surround the ventilation port 13, a snow crack 15 and a rain guard 16 are provided on the outer periphery of the platform 14, and a water retaining material 23 is provided on the inner periphery. Side walls 17, 18, 1 are provided on each side of the gantry 14.
9 and 20 are provided upright, and openings 21 and 22 are formed in both side walls 17 and 18 on the facing side of the girder. A ventilation box 24 including a box body 25 and a protrusion 26 is provided in each of the sidewalls 17, 18, 19, 20. As shown in FIG. 3, the box body 25 is formed in a box shape having ventilation windows 28 and 29 closed at both ends with nets, and an opening 30 is formed on the upper surface. An upper duct 31 is provided through the
The upper duct 31 is supported by the support plate 32. The box body 25 is provided by fitting the ventilation windows 28 and 29 at both ends into the openings 21 and 22 of the side walls 17 and 18, respectively. Further, as shown in FIG. 4, the protrusion 26 is formed in a box shape having an opening 33 on the lower surface, and is attached so as to cover the upper opening 30 of the box 25.

Further, a flexible duct 34 is connected to the lower end of the upper duct 31 of the ventilation box 24, and the lower end of the duct 34 penetrates the ventilation port 13 and opens to the room. Further, adjacent to the ventilation box 24, an attic ventilation box 27 for ventilating the attic is provided. The attic ventilation box 27 has ventilation windows that fit into the openings 21 and 22 at both ends, and a ventilation opening 27a is formed on the upper surface thereof. It becomes a pressure and sucks out the air in the attic through the ventilation opening 27a. Further, the ventilation box 24 and the attic ventilation box 27 are covered with a roof frame 35, and a full vest sheet 36 is provided.
A louver 37 that covers the ventilation windows 28 and 29 is provided, and a roof panel cover 38 is attached. In addition, stand 1
4, the side walls 17, 18, 19, 20, the roof mount 35, the louver 37, and the roof panel cover 38 constitute a box-shaped main body 39.

According to the ventilation device thus configured, since the upper duct 31 is inserted into the ventilation box 24 from the lower surface of the ventilation box 24, the duct passage and the air passage are provided on the side of the ventilation box 24 in the main body 39. It may not be necessary, and the cross-sectional area of the ventilation box 24 can be maximized, and ventilation efficiency is improved.

In addition, the ventilation box 24 is provided over substantially the entire width of the main body 39.
And an attic ventilation box 27 are installed side by side,
The space inside the main body 39 can be effectively used, and the ventilation efficiency is further improved.

In addition, a ventilation box 24 for ventilation indoors through a duct 34 and an attic ventilation box 27 for ventilation of the attic.
There are two types of ventilation boxes installed, and it is possible to ventilate both indoors and the attic at the same time. Moreover, since the ventilation box 24 and the attic ventilation box 27 are completely independent from each other, they can be reliably ventilated indoors and attic.

Further, in the case of the ventilation box 24, the air passing through the ventilation box 24 causes a negative pressure in the ventilation box 24, and the indoor air is sucked out from the duct 34. As described above, the duct 34 is penetrated into the ventilation box 24 to be connected to the indoor space in an airtight state, the negative pressure due to the passage of the wind becomes high, and the ventilation efficiency is good.

Further, the upper end of the upper duct 31 inserted into the ventilation box 24 projects from the upper surface opening 30 of the box body 25 and opens in the projecting portion 26, and rainwater enters from the ventilation windows 28 and 29 of the box body 25. However, it does not penetrate into the upper duct 31.

The box body 25 and the protrusion 26 may be integrally formed.

[Effect of device]

According to the ventilation device of this invention, the duct is inserted into the ventilation box from the lower surface of the ventilation box, and it is not necessary to provide a duct passage or an air passage on the side of the ventilation box in the main body. The cross-sectional area can be maximized, improving ventilation efficiency. Moreover, since the ventilation box and the attic ventilation box are installed side by side over almost the entire width of the main body, the space inside the main body can be effectively used and the ventilation efficiency is further improved. The upper end of the duct inserted in the ventilation box is
Since it opens in the protruding part on the upper surface of the ventilation box, the effect that it does not enter the duct even if rainwater enters from the ventilation window of the ventilation box is obtained.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, and FIGS. 3 (A), (B), and (C) are plan views, side views, and front views of the box body. , FIG. 4 (A),
(B) and (C) are a plan view, a side view, and a front view of the projecting portion, FIG. 5 is a cross-sectional view showing a conventional ventilation structure of a building, and FIGS. 6 to 8 are schematics of the ventilation device. It is a figure. 10 ... Roof, 13 ... Ventilation port 21, 22 ... Opening part, 24
... Ventilation box, 26 ... Protrusion, 27 ... Attic ventilation box, 27a ... Ventilation opening, 28, 29 ... Ventilation window, 3
1 ... Upper duct, 34 ... Duct, 39 ... Main body

Claims (1)

[Scope of utility model registration request] 1. A ventilation opening provided on a roof, a box-shaped main body having an opening formed over substantially the entire width on a pair of side surfaces provided on the upper surface of the roof to cover the ventilation opening, and the inside of the main body. The ventilation box and the attic ventilation box having ventilation windows arranged side by side over substantially the entire width of the side surface of the body forming the opening and joined to both openings of the body at each end, and the ventilation A protrusion formed on the upper surface of the box, a ventilation opening formed on the upper surface of the attic ventilation box, a ventilation opening that penetrates the ventilation opening, a lower end is opened indoors, and an upper end is from the lower surface of the ventilation box to the inside of the ventilation box. And a duct that opens through the protrusion in the projection.