JPH05148966A - Ventilating tower - Google Patents

Abstract

PURPOSE:To prevent the intrusion of rain water completely even in the case of strong wind blowing. CONSTITUTION:The top part of a roof 11 is provided with a roof opening 13 extended along this top part and communicated with an attic. There is provided an exhaust passage body 14 protruding upward from the roof opening 13, and a blowout hole 14a for exhausting air in the attic and the like is formed at the upper end part. The ridge 15 of the roof is provided in such a way as to cover the exhaust passage body 14, and ventilating holes 18, 19 are formed in the positions, lower than the blowout hole 14a, of both side plates 16a, 17a positioned on both sides of the top part of the ridge 15. An air passage 15b passing the upper side of the blowout hole 14a from one ventilating hole 18 or 19 to reach the other ventilating hole 19 or 18 is then formed to construct a ventilating tower. In this ventilating tower, communicating holes 21, 22 provided at a partition plate 20 are closed by sheets 25, 26 to shut off the air passage 15b when the wind of the specified strength or more flows into the air passage 15b from the ventilating holes 18, 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation tower provided at the top of a roof to ventilate the attic or the like.

[0002]

2. Description of the Related Art As such a ventilation tower, for example, one shown in FIG. 3 is known (see Japanese Utility Model Laid-Open No. 59-38320).

In FIG. 3, reference numeral 1 designates an inner drainage body having openings 2 and 1a at the upper and lower portions thereof, and the opening portion 1a at the lower portion thereof communicates with an opening ventilation portion C formed by opening a field plate 6 of a roof B. is doing. A is a building in which ventilation holes 5 are provided in the lower part of the side plate 4, and this building A is installed at the top of the roof B so as to cover the inner drainage body 1.

As for ventilation, the air in the attic is ventilated from the open ventilation passage C to the outside through the ventilation holes 5 provided in the side plate 4 of the ridge A through the inner drainage body 1.

The ventilation hole 5 is provided at a position lower than the opening 2 at the upper part of the inner water drainage body 1 so as to prevent rainwater from entering.

[0006]

However, in such a ventilating tower, when the wind is strong, rainwater will go over the height of the sprinkler 1 and enter the attic,
There was a problem that the infiltration of rainwater could not be completely prevented.

The present invention has been made in view of the above problems, and an object thereof is to provide a ventilation tower capable of completely preventing rainwater from entering even when wind is strong.

[0008]

In order to achieve the above object, the present invention provides a roof opening at the top of the roof, which extends along the top and communicates with the inside of the attic, and which projects upward from the roof opening and has an upper end. An exhaust passageway in which an air outlet for discharging the air in the attic is formed, and a ridge is provided so as to cover the exhaust passageway, and both side plates located on both sides of the top of the ridge, from the outlet In a ventilation tower in which a ventilation hole is formed at a lower position and an air passage extending from one of the ventilation holes to the other ventilation hole through the upper side of the air outlet is formed, in the ventilation path, a force of a predetermined value or more from the ventilation hole is provided. An air passage blocking means is provided for shutting off the wind passage when the wind blows in.

[0009]

[Operation] According to the present invention, with the above structure, when a wind having a strength higher than a predetermined level flows in from the ventilation hole, the air passage blocking means shuts off the air passage.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a ventilation tower according to the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 10 denotes a road plate of a roof 11, and the road plate 10 at the top of the roof 11 has an attic 12 inside.
A roof opening 13 that communicates with is provided along the top. An exhaust passage 14 projecting upward is provided upright in the roof opening 13, and an air outlet 14a for discharging air from the attic or the like is formed at the upper end of the exhaust passage 14. A ridge 15 made of, for example, a vinyl chloride steel plate is provided at the top of the roof 11 so as to cover the exhaust duct 14.

Both side plates 1 located on both sides of the top of the ridge 15.
Lower parts 16a, 17 of 6, 17 lower than the outlet 14a
A plurality of ventilation holes 18 and 19 are formed in a. An air passage 15b is formed in the ridge 15 and continues from one ventilation hole 18, 19 to the other ventilation hole 19, 18 through the upper side of the outlet 14a. Building 15 shown in this embodiment
Has a height of about 25 cm, a length of about 1 m and a width of about 35 cm, and the exhaust duct 14 has a width of about 5 cm.

Inside the building 15, the outlet 14 of the exhaust body 14 is provided.
A partition plate 20 is provided at an intermediate position between the height of a and the ventilation holes 18 and 19, and the air passage 15b includes the upper air passage 15a and the left air passage 15.
It is divided into c and the right wind passage 15d.

The partition plate 20 has a communication hole 2 at a position sandwiching the exhaust passage 14 and connecting the upper air passage 15a and the left air passage 15c.
1 and the communication hole 22 that connects the upper air passage 15a and the right air passage 15d.
Are provided in plurality. And the left wind passage 15
c and the right air passage 15d connect the communication holes 21 and 22 and the upper air passage 15a.
It is only communicated via. The partition plate 20 is made of vinyl chloride steel plate.

Metal meshes 23 and 24 made of stainless steel are provided at a position approximately 1 to 3 cm below the communication holes 21 and 22. One ends of the wire nets 23 and 24 are fixed to the exhaust passage body 14. Rubber sheets 25, 26 are placed on the wire nets 23, 24, and one end 2 of the rubber sheets 25, 26 is placed.
5a, 26a are fixed to the exhaust body 14, and the other end 25
b and 26b are free. In addition, the other end 25
The distance from b, 26b to the inner walls 16b, 17b of the ridge 15 is about 5
A space of cm is formed and the air passage is secured.

Then, the exhaust body 14, the ridge 15, and the partition plate 2
0 and the rubber sheets 25 and 26 and the like constitute a ventilation tower, and the partition plate 20 and the rubber sheets 25 and 26 constitute an air passage blocking means.

The rubber sheets 25, 26 are made of, for example, ethylene-propylene rubber (EPDM) and have an area density of 2K.
When the g / m ² is used, the rubber sheets 25 and 26 are lifted up to close the communication holes 21 and 22 when the wind pressure exceeds a predetermined value.

Guide plates 27 and 28 are provided so as to project from the inner wall of the ridge 15 at a position approximately 3 to 5 cm below the wire nets 23 and 24. The tip portions 27a, 28a of the guide plates 27, 28 project up to about 1/2 of the distance from the inner walls 16b, 17b to the exhaust passage body 14 so that the wind entering from the ventilation holes 18, 19 directly hits the rubber sheet. ing.

Next, the operation of the ventilation tower constructed as described above will be described.

Now, for example, when the wind is blowing from left to right as shown by arrow P in FIG. 1, the left side of the roof 10 has a positive pressure and the right side has a negative pressure. Then, the wind enters the ridge 15 through the ventilation holes 18 and is guided by the guide plate 27 to the rubber sheet 2
Abut 5. When the wind is weak, the rubber sheet 25 does not float up due to the wind pressure and therefore flows in the direction indicated by the arrow Q1. Then, this wind flows from the left air passage 15c through the communication hole 21 to the upper air passage 15a as shown by an arrow Q2, and further flows from the upper air passage 15a to the right air passage 15d through the communication hole 22. ..

On the other hand, by the flow of the arrow Q2, the air in the attic or the like is discharged from the roof opening 13 through the exhaust passage 14 from the outlet 14a and flows into the upper air passage 15a in the ridge 15. Further, the air flows to the right air passage 15d through the communication hole 22 along with the flow indicated by the arrow Q2, and is ventilated from the ventilation hole 19 to the outside.

When the wind is stronger than a predetermined level, the rubber sheet 2
Since the wind pressure received by 5 becomes strong, the rubber sheet 25 is
The communication hole 21 of the floating partition plate 20 is closed as shown in FIG. As a result, even if rainwater enters the ventilation holes 19 by the wind when it is raining, the rainwater does not enter the upper air passage 15a, and the entry of rainwater into the attic can be completely prevented. ..

Even when the wind is blowing in the opposite direction, ventilation is performed in the same manner as described above, and in the case of strong wind, the communication hole 22 is blocked by the rubber sheet 26, so that the entry of rainwater into the attic is prevented. It can be completely prevented.

The embodiment has been described above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and the present invention is applicable even if there are design changes and the like within the scope not departing from the gist of the present invention. Of course, it is included in.

For example, in the embodiment of the present invention, the partition plate 2
0 and the rubber sheets 25 and 26 are arranged to block the air passage 15a. May be blocked by the blocking plate. Further, although the rubber sheet is used in the above embodiment, the present invention is not limited to this, and any soft sheet may be used. For example, a vinyl sheet may be used. Further, although the metal nets 23 and 24 are used to receive the rubber sheets 25 and 26, the present invention is not limited to this, and a plate having a large number of holes may be used. Further, although the guide plates 27 and 28 are provided, they may be omitted if the wind entering from the ventilation holes 18 and 19 sufficiently hits the rubber sheets 25 and 26 and the air passage can be secured.

[0026]

As described above, according to the present invention, there is provided the air passage shut-off means for shutting off the air passage when a wind having a strength higher than a predetermined level flows into the air passage from the air passage. Then, when a wind with a certain strength or more enters the air passage through the ventilation holes,
Since the air passage blocking means shuts off the air passage, even if rainwater enters through the ventilation holes, it is possible to completely prevent the rainwater from entering the attic.

[Brief description of drawings]

FIG. 1 is a sectional view showing the structure of a ventilation tower according to the present invention,

FIG. 2 is a cross-sectional view showing a state in which a sheet closes a communication hole.

FIG. 3 is a cross-sectional view showing a configuration of a conventional ventilation tower.

[Explanation of symbols]

 11 Roof 13 Roof Opening 14 Exhaust Body 15 Building 15a Airway 16,17 Side Plate 18,19 Ventilation Hole 20 Partition Plate 21,22 Communication Hole 25,26 Sheet

Claims (1)

[Claims] 1. A roof opening, which extends along the top and communicates with the inside of the attic, is provided at the top of the roof, and an air outlet for discharging air in the attic or the like is formed at the upper end so as to project upward from the roof opening. An exhaust passage is provided, a ridge is provided so as to cover the exhaust passage, and a ventilation hole is formed at a position lower than the blowout port on both side plates located on both sides of the top of the ridge. In a ventilation tower in which an air passage that passes through the upper side of the air outlet and continues to the other air passage is formed, when a wind having a predetermined strength or more flows into the air passage from the air passage, a wind that blocks the air passage. A ventilation tower equipped with a road blocking means.