JP3305617B2 - Ventilation fittings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation fitting for attaching to a ventilation hole in a house wall connecting an outdoor and an indoor.

[0002]

2. Description of the Related Art In general, a building such as a house is provided with a ventilation hole connecting an indoor and an outdoor in a cloth foundation under a floor or an attic, for the purpose of moisture proofing, mold proofing and prevention of temperature rise in summer. Have been. On the outdoor side of the ventilation hole, a ventilation opening is attached to prevent animals such as rats and snakes from entering the room through the ventilation hole. As such a ventilation opening, a net or a grid-like attachment is widely used.

[0003]

However, the conventional mesh or lattice-shaped fixture has a simple structure, so that rainwater easily falls down indoors. Especially during a storm
Rainwater easily penetrates and the interior gets wet. Then, indoors may be filled with moisture to induce corrosion and mold. Therefore, the conventional fixture having a simple configuration has a problem that the durability of the building may be impaired.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a ventilation fitting capable of preventing rainwater from entering indoors while achieving sufficient ventilation between the inside and outside of a roof wall. To provide.

[0005]

According to the first aspect of the present invention, there is provided a ventilating device provided in a ventilation hole formed in a roof wall. comprising a spout body having a wall and a rear wall, and a plurality of partition wall provided in order to set the ventilation path into the port device body, the partition
Each of the walls is disposed substantially orthogonal to the front and rear walls
At the same time, each partition wall has a wave shape from the front wall to the rear wall.
It is the gist that it is formed in .

[0006]

[0007]

According to a second aspect of the present invention, in the ventilating device according to the first aspect , the ventilation passage has a ventilation cross-sectional area that becomes smaller toward a central region in the body of the ventilation device. .

The invention described in claim 3 is the first or second invention.
In the ventilation mouthpiece according to the above, the lower wall of the mouthpiece body is provided with a slope that descends from the rear wall to the front wall,
A through hole is provided at a lower end of a front wall of the mouthpiece body and a lower end of each partition wall.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) Hereinafter, Embodiment 1 of a ventilating device according to the present invention will be described with reference to FIG.
This will be described with reference to FIG. Note that, in the first embodiment,
The configuration of the divided walls 8, 10, and 12
Amended in the procedural amendment filed on March 19 [Patent
Range), but one reference example
This is what we write here.

The ventilation fitting is a substantially rectangular box-shaped fitting body 1.
And a partition wall (8, 10, 12) that divides the internal volume of the mouthpiece body 1 into substantially equal four parts.
The whole ventilation opening is made of ceramic. As shown in FIG. 3, the mouthpiece body 1 is formed such that its height gradually increases from the indoor side to the outdoor side. In addition, as shown in FIG.
A plurality of depressions 2 are provided. This depression 2 is a roof wall 3
And extends in the horizontal and upright directions.

A plurality of circular ventilation holes 5 are formed in the front wall 4 (outdoor side) of the mouthpiece body 1 over substantially the entire surface thereof to communicate the outside with the inside of the mouthpiece body 1. At the lower end of the front wall 4, a plurality of rectangular through holes 6 are provided for returning rainwater that has entered the mouthpiece body 1 through the vent holes 5 to the outside. On the other hand, as shown in FIGS. 2 and 3, a plurality of circular ventilation holes 5 are formed in the rear wall 7 (indoor side) of the mouthpiece body 1 to communicate the inside of the mouthpiece body 1 with the interior. The total cross-sectional area of the ventilation holes 5 in the rear wall 7 is, for example, 40% of the total cross-sectional area of the ventilation holes 5 provided in the front wall 4.
１００100% (60% in the present embodiment). Then, the respective ventilation holes 5 of the rear wall 7 are arranged rightward when viewed from the outdoor side in FIG.

The first partition wall 8 is fixed to the upper, lower, left and right inner wall surfaces of the mouthpiece body 1 at a predetermined distance from the front wall 4. The first partition wall 8 constitutes a first ventilation chamber 9 by the front wall 4 and the upper, lower, left and right inner wall surfaces of the mouthpiece main body 1, and a plurality of ventilation holes 5 communicating the first ventilation chamber 9 with the indoor side. have.
The total cross-sectional area of the ventilation holes 5 is, for example, 25% to 25% of the total cross-sectional area of the ventilation holes 5 formed in the front wall 4.
It is set to be 75% (40% in the present embodiment), and is arranged to the left as viewed from the outdoor side in FIG. Also, as shown in FIG.
A rectangular through hole 6 for returning rainwater that has entered the mouthpiece body 1 to the outside is provided at the lower end of the tool body 1.

The second partition wall 10 is fixed to the upper, lower, left and right inner wall surfaces of the mouthpiece body 1 at a predetermined distance from the first partition wall 8. The second partition wall 10 constitutes a second ventilation chamber 11 by the first partition wall 8 and the upper, lower, left and right inner wall surfaces of the mouthpiece main body 1, and a plurality of communication ports for communicating the second ventilation chamber 11 with the indoor side. It has pores 5. The total ventilation sectional area of the plurality of ventilation holes 5 is, for example, 25% to 65% (in this embodiment, 3% to 65%) with respect to the total ventilation sectional area of the ventilation holes 5 formed in the front wall 4.
0%), and is arranged to the right as viewed from the outdoor side in FIG. Further, a rectangular through-hole 6 for returning rainwater that has entered the mouthpiece main body 1 to the outside is also provided at the lower end of the second partition wall 10.

The third partition wall 12 is fixed to the upper, lower, left and right inner wall surfaces of the mouthpiece body 1 at a predetermined interval from the second partition wall 10. The third partition wall 12 forms a third ventilation chamber 13 together with the second partition wall 10 and the upper, lower, left and right inner wall surfaces of the tool body 1, and the fourth partition wall together with the rear wall 7 and the upper, lower, left, and right inner wall surfaces of the tool body 1.
The ventilation chamber 14 is formed, and has a plurality of ventilation holes 5 communicating the third ventilation chamber 13 and the fourth ventilation chamber 14. Here, the total ventilation cross-sectional area of the ventilation holes 5 is, for example, 25% to 25% of the total ventilation cross-sectional area of the ventilation holes 5 formed in the front wall 4.
It is set so as to be 65% (30% in the present embodiment), and is arranged on the left side when viewed from the outdoor side in FIG. The mouthpiece body 1 is also provided at the lower end of the third partition wall 12.
A rectangular through hole 6 for returning rainwater that has entered the inside to the outside
Is provided. In this embodiment, the mouthpiece body 1 is used.
The circular vents 5 formed in each of the partition walls 8, 10, 12 all have the same diameter.
The members are arranged at a predetermined interval.

The ventilating device thus configured is shown in FIG.
As shown in FIG. 3, it is used by being attached to a ventilation hole 15 provided in advance on the wall 3 of the building. The ventilation hole 15 has a size substantially the same as that of the mouthpiece body 1, and the gap between the outer surface of the mouthpiece body 1 and the inside surface of the ventilation hole 15 is filled with a filling material such as mortar 16 to form the ventilation hole 15. The mounting and fixing of the tool are completed. In this case, as shown in FIG. 3, the mouthpiece main body 1 is fixed in the ventilation hole 15 such that the lower end of the front wall 4 on the outdoor side is lower than the lower end of the rear wall 7 on the indoor side. .

Next, the operation of the ventilating device of the present embodiment will be described. The flow of air will be described.
Since the ventilation holes 5 formed in the rear wall 7 are provided on the left and right sides of the respective walls, the air ventilation path in the mouthpiece body 1 is constructed to meander. . That is, as shown in FIG. 2, the air that has entered the mouthpiece main body 1 through the ventilation holes 5 of the front wall 4 reaches the first ventilation chamber 9 and then continues to reach the ventilation holes 5 of the first partition wall 8. Move left to pass. The air that has reached the second ventilation chamber 11 passes through the ventilation hole 5 of the second partition wall 10,
Flow to the right. Further, in the third ventilation chamber 13, go to the left,
In the fourth ventilation chamber 14, the air blows indoors via the ventilation hole 5 of the rear wall 7 while moving to the right. On the other hand, the movement of air from indoors to outdoors is performed by reversely following the above-described inflow path in the mouthpiece body 1. In this way, the building wall 3
Through the at least one ventilation opening provided in the air conditioner, air can be circulated both outdoors and indoors.

Next, a case where rainwater enters the ventilation fitting will be described. As described above, the air ventilation path is configured to meander. Furthermore, each partition wall 8,1
Two of the second and third partition walls 10, 12 disposed at the center of the rear wall 7, 0, 12 and the rear wall 7, have a larger total cross-sectional area of the ventilation hole 5 than the other two (8, 7). Is configured to be smaller. Thus, rainwater is prevented from following the ventilation hole 5 of the mouthpiece body 1 and entering the room. Also,
The height of the mouthpiece main body 1 is formed so as to gradually increase from the indoor side to the outdoor side, and at the time of attachment to the ventilation hole 15, the lower inner wall of the mouthpiece body 1 descends from indoor to outdoor. Since the slope is provided, even if rainwater enters the mouthpiece main body 1, the rainwater follows the through holes 6 provided at the lower ends of the partition walls 8, 10, and 12 and is returned to the outside.

This embodiment has the following advantages. The ventilation holes 5 formed in each of the partition walls 8, 10, 12 and the rear wall 7 are provided on either side of each wall. For this reason, the air entering the mouthpiece main body 1 can move through the ventilation chambers 9, 11, 13, and 14 toward one of the right and left sides, and the meandering configuration of the ventilation path allows indoors of rainwater to enter. Can be prevented. Further, since the time during which the air stays in the mouthpiece body 1 is secured longer than in the meandering configuration, the air from which heat has been removed can be blown into the room during this time.

Of the three partition walls 8, 10, 12 and the rear wall 7 mounted on the mouthpiece body 1, the ventilation holes 5 of the two partition walls 10, 12 disposed in the center are formed. The total ventilation cross section is smaller than the other two (8, 7). With this configuration, in combination with the meandering configuration of the ventilation path described above, it is possible to more effectively prevent rainwater from entering the room.

The tool body 1 is formed so that its height increases from the indoor side to the outdoor side.
At the time of attachment to the ventilation hole 15, the lower inner wall of the mouthpiece body 1 is provided with an inclination from indoors to outdoors. For this reason, the rainwater that has infiltrated into the mouthpiece body 1 is applied to each partition wall 8, 1.
It can be returned to the outside through the through hole 6 provided at the lower end of 0,12.

When a strong wind blows from outdoors to indoors during a storm such as a typhoon, the wind must pass through a complicated meandering ventilation path in the mouthpiece body 1.
Therefore, it is possible to reduce the strong wind blowing directly into the room.

A plurality of depressions 2 extending in the same direction as the roof wall 3 are provided on the outer surface of the mouthpiece body 1. For this reason,
When the ventilation opening is installed in the ventilation hole 15 with a filling material such as mortar 16, the mortar 16 and the like can easily spread along the recess 2, and the ventilation opening can be securely attached to the roof wall 3 without being rattled in the attached state. Can be fixed.

○ Since the mouthpiece body 1 is made of ceramic, corrosion due to moisture, salt, etc. can be prevented.
Excellent environmental resistance. In addition, the embodiment of the invention is shown in FIGS.
The present invention is not limited to the first embodiment shown in FIG. 4, but can be embodied with the following modifications.

(Modification) In the first embodiment shown in FIGS. 1 to 4, the ventilation paths are configured so that the ventilation chambers 9, 11, 13, and 14 in the mouthpiece body 1 are alternately moved left and right. As shown in FIG. 5, a ventilation hole 5 may be formed in each of the partition walls 8, 10, 12 and the rear wall 7 so as to meander alternately in the upper and lower directions. Also, as shown in FIG. 6, even if the ventilation holes 5 are formed in the partition walls 8, 10, 12 and the rear wall 7 so that the lower left and the upper right or the lower right and the upper left can meander alternately. Good. Even with such a configuration, the same effect as that of the first embodiment in FIGS. 1 to 4 can be obtained.

(Modification) Front wall 4, partition walls 8, 10,
12 and the ventilation hole 5 provided in each of the rear wall 7,
Although the shape is round (circular), this shape may be changed. For example, even if the shape is changed to a square or an ellipse, the same effect as that of the first embodiment in FIGS. 1 to 4 can be obtained.

(Modification) In the first embodiment shown in FIGS. 1 to 4, the diameters of the ventilation holes 5 provided in the front wall 4, the partition walls 8, 10, 12 and the rear wall 7 are the same. However, the diameter of the ventilation hole 5 may be different for each wall. In the first embodiment shown in FIGS. 1 to 4, three partition walls 8, 10, and 12 are mounted, but the number may be increased or decreased. In making these changes, while adjusting both the requirements for preventing rainwater from entering the indoors and for securing a meandering ventilation path that can promote sufficient ventilation, the ventilation holes 5 with respect to the surface area of each wall surface are adjusted. It must be determined in view of the proportion of the total ventilation cross section. (Embodiment 2) FIGS. 7 and 8 show a ventilation opening according to Embodiment 2 of the present invention. This ventilating device has the same basic configuration as that of the first embodiment, except that the shape of the partition wall that partitions the inside of the tool body 1 is different, so that the meandering configuration of the ventilation path is different. Therefore, this difference will be mainly described.

The front wall 4 (outdoor side) and the rear wall (indoor side) 7 of the mouthpiece body 1 are provided with a plurality of circular ventilation holes 5 for communicating the inside and outside of the mouthpiece body 1 over substantially the entire surface thereof. In addition, a rectangular through hole 6 is provided at the lower end of the front wall 4 for returning rainwater that has entered the mouthpiece body 1 to the outside (see FIG. 1). A plurality of partition walls 20 arranged substantially perpendicular to the front wall 4 and the rear wall 7 are fixed to the upper, lower, front and rear inner wall surfaces of the mouthpiece body 1. As shown in FIGS.
Each partition wall 20 is formed in a waveform that swings right and left from the front wall 4 to the rear wall 7 as viewed from the outdoor side in FIG. Also,
A semicircular through-hole 21 is provided at the lower end of each partition wall 20 for returning rainwater that has entered the mouthpiece body 1 to the outside. In each partition wall 20, the through holes 21 are arranged so as to be substantially straight from the rear wall 7 to the front wall 4 (see FIG. 7).

The air that has respectively entered the plurality of ventilation chambers in the mouthpiece body 1 through the ventilation holes 5 in the front wall 4 is
While moving toward the air holes 5 in the rear wall 7 while being guided by the waveforms of FIG. At this time, a ventilation path meandering right and left from the front wall 4 to the rear wall 7 is formed between the adjacent partition walls 20. Also, the movement of air from indoor to outdoor,
It is performed through the meandering ventilation path. In this manner, the air is circulated between the outside and the inside through at least one ventilation opening provided on the roof wall 3 of the building.

When rainwater infiltrates into the ventilating device, each partition wall 20 has a waveform, and the waveform forms a meandering configuration of the ventilation path. Intrusion into the room is prevented. In addition, the height of the mouthpiece body 1 is formed so as to gradually increase from the indoor side to the outside side, and the lower inner wall of the mouthpiece body 1 is attached to the ventilation hole 15 from indoor to outdoor. Is provided, even if rainwater enters the mouthpiece body 1, the rainwater is returned to the outside through the through holes 21 provided at the lower end of each partition wall 20 and the through holes 6 of the front wall 4. It is.

The same effects as those of the first embodiment shown in FIGS. 1 to 4 can be obtained in the ventilating device thus configured. The second embodiment can be changed to the following mode.

(Modification) In the second embodiment shown in FIGS. 7 and 8, the ventilation cross-sectional area of the ventilation path is substantially constant in the mouthpiece main body 1. The space between the partition walls 20 may be made narrower, and the space between the adjacent partition walls 20 in the front area or the rear area of the mouthpiece main body 1 may be made slightly wider than the central area. With this configuration, the same effect as in the above embodiment can be obtained.

(Modification) In the second embodiment shown in FIGS. 7 and 8, a waveform that swings right and left from the front wall 4 to the rear wall 7 is formed. However, the waveform may be changed to a waveform that swings up and down. Good. With this configuration, the same effect as in the above embodiment can be obtained.

(Modification) Compared to the second embodiment shown in FIGS. 7 and 8, the number of partition walls 20 may be increased or decreased.
May be changed in magnitude, or the number of waves in one partition wall 20 may be increased or decreased. still,
These changes must be determined while adjusting the requirements for both preventing rainwater infiltration into the room and securing meandering ventilation paths that can promote sufficient ventilation.

The embodiment of the present invention is not limited to the first embodiment shown in FIGS. 1 to 4 and the second embodiment shown in FIGS. 7 to 8, and may be modified as follows. It is possible. (Modification) The shape of the mouthpiece main body 1 may be changed to, for example, a substantially cylindrical shape or a triangular cylindrical shape. Even with this configuration, the same effects as those of the first and second embodiments can be obtained.

(Modification) Although the entire ventilation opening is made of ceramic, it may be changed to, for example, metal such as stainless steel or plastic. With this configuration, it is possible to obtain the same effects as those of the first and second embodiments, and it is possible to provide a ventilation fitting that matches the roof wall 3 of the building.

[0037]

According to the ventilation mouthpiece of the first aspect, since the ventilation passage constructed in the mouthpiece body is formed so as to meander, rainwater can be supplied while the air circulation is secured. And do not enter the room indoors. Therefore, the occurrence of corrosion and mold is suppressed, and the durability of the building is improved.

[0038]

Further, air enters the spout body, moves the waveform is applied while being guided by the respective partition walls.
At this time, corrugated partition walls are arranged adjacent to each other, and a meandering ventilation path is constructed between the partition walls. Therefore, air can be circulated between the outdoors and the indoors, and the intrusion of rainwater into the indoors can be prevented. Therefore, the occurrence of corrosion and mold is suppressed, and the durability of the building is improved.

According to the ventilating device of the second aspect , in addition to the effect of the first aspect , since the ventilation cross-sectional area of the ventilation path becomes smaller toward the center region of the main body of the mouth, rainwater is not contained in the main body of the mouth. When it invades, further intrusion toward the indoor can be suppressed.

[0041] According to the ventilation opening device according to claim 3, also claim 1
In addition to the effect of 2 , the rainwater that has infiltrated into the mouthpiece body is prevented from entering the indoor side by the partition wall, and the lower inner wall of the mouthpiece body is given a slope from indoors to outdoors. Therefore, rainwater can be returned to the outdoors through through holes provided at the lower end of the front wall of the mouthpiece main body and the lower end of each partition wall.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a ventilation fitting common to Embodiments 1 and 2. FIG.

FIG. 2 is a sectional view taken along line AA of FIG. 1 in the first embodiment.

FIG. 3 is a sectional view taken along line BB in FIG. 2;

FIG. 4 is a sectional view taken along line CC in FIG. 2;

FIG. 5 is a sectional view of a ventilation fitting according to a modification of the first embodiment.

FIG. 6 is a sectional view of a ventilation fitting according to a modification of the first embodiment.

FIG. 7 is a sectional view taken along the line AA of FIG. 1 according to the second embodiment.

FIG. 8 is a perspective view showing a partition wall according to the second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... mouthpiece main body, 3 ... house wall, 4 ... front wall, 5 ... vent hole, 6 ...
Through hole, 7 ... rear wall, 8 ... first partition wall, 10 ... second partition wall,
12: third partition wall, 15: ventilation hole, 20: (corrugated) partition wall, 21: through hole.

Claims (3)

(57) [Claims] 1. A ventilation hole (15) formed in a roof wall (3).
A mouthpiece body (1) having a front wall (4) and a rear wall (7), provided to set a ventilation path in the mouthpiece body (1). A plurality of partitioned walls ( 20 ), wherein each of the partitioned walls (20) is the front wall (4) and the rear wall.
(7), and each partition wall (2
0) is a wave shape from the front wall (4) toward the rear wall (7).
A ventilating device characterized by being formed in . 2. The ventilation path according to claim 2, wherein said ventilation passage has a ventilation sectional area.
It is characterized in that it is smaller in the central area in the main body (1)
The ventilation mouthpiece according to claim 1, wherein 3. A lower wall of the mouthpiece body (1) is a rear wall.
An inclined surface that goes down from (7) to the front wall (4) is provided.
And the lower end of the front wall (4) of the mouthpiece body (1) and
A through hole (21) is provided at the lower end of each partition wall (20).
The ventilation mouthpiece according to claim 1 or 2, wherein the mouthpiece is provided .