JPS6326658Y2 - - Google Patents

Description

[Detailed explanation of the invention] Modern houses have great soundproofing and airtightness due to the use of metal fittings such as sash. However, because it is soundproof and airtight, there is extremely little inflow of outside air, and places where many people gather, such as meeting halls, where the whole family gathers, such as dining rooms in ordinary homes, and fires for cooking and relaxing. In rooms where they are used at the same time, there is a risk of not only contaminating the indoor air but also causing oxygen deficiency accidents. In order to prevent this, it is said that windows should be opened at predetermined intervals to ventilate the room, but this is easier said than done and has not been effective. In order to cope with this problem, conventional ventilation systems have been used in which air supply holes are bored in appropriate positions of the sash (mainly in the upper stile) and the air supply holes are opened and closed by a shutter plate to introduce outside air.
However, the above-mentioned conventional device does not have a sufficient sound-damping effect and not only impairs the inherent soundproofing effect of metal fittings, but the most serious drawback is that when ventilation is performed using the above-mentioned conventional device, the supplied outside air I dislike this because it creates a draft that hits my upper body and makes me feel uncomfortable, and if I use fire with the shutter closed, there is a risk of an oxygen deficiency accident as a result of improper usage.

In view of the above-mentioned conventional drawbacks, the present application has two sets of air supply holes drilled at two different locations on the indoor wall surface of an air supply box fitted and fixed to the wall surface, and one set of air supply holes is formed to avoid drafts. When it is closed, the other set of air supply holes is opened, and even if the usage is inappropriate as described above, the necessary amount of outside air is always supplied, and the outside air that is supplied is free from drafts. This relates to a noise-reducing ventilation system that does not cause discomfort and, in addition, muffles the outdoor noise that enters during ventilation, and does not impair the functionality of houses that use metal fittings, and is as follows: The present application will be described in detail with reference to drawings showing embodiments.

The air supply box 1 consists of an outdoor box 2, an indoor/outdoor box 3, and left and right side plates 4, 4a.
are fixed to the side plates 4, 4a with screws 5 or other appropriate means, and the bottom plate 3b of the indoor box 3 is pivoted to the pivot 6 provided on the side plates 4, 4a, and the top plate 3a is attached to the outdoor box 2. The air supply box 1 has an air intake hole 8 opened on its outdoor side surface. As described above, by removing the screws 7, the indoor box body 3 swings toward the indoor side about the pivot 6 and is opened, making it easy to clean the inside of the air supply box 1. In addition, in the embodiment, air supply box 1
Although only the configuration shown above is shown, this is not limited to the above configuration, and can be modified as appropriate in relation to the mounting hole 9, which will be detailed later. The shape of the body 3 can be polygonal or arcuate,
In short, it does not matter what the configuration shape is as long as it can be attached to the attachment hole 9 and satisfies the intended effects of the present application.

Wall surface 300 of indoor box body 3 constituting air supply box 1
As shown in the exploded view in FIG. 3, two sets of numerous air supply holes 10, 10a are drilled therein. In this embodiment, one set of air supply holes 10 is bored in the front wall 3C of the indoor box 3, and the other set of air supply holes 10a is bored in the top plate 3a.
a are located so as to correspond to each other (directly facing each other vertically as shown by the arrows). The total opening area of the air supply holes 10a formed in the top plate 3a is determined so that the minimum amount of air necessary for ventilation is supplied.

Next, 11 is a shutter plate which is slidably superimposed on the front wall 3C and the top plate 3a, in which air supply holes 10 and 10a are bored, and the shutter plate 11 has ventilation holes 12 and 12a located as shown below. It is perforated.
That is, as shown in FIG. 3, one set of air supply holes 10 are formed in the front wall 3C, and ventilation holes 12 are formed in the shutter plate 11 that overlaps the front wall 3C.
When the air supply holes 10 are opened in accordance with the
0a is closed, the shutter plate 11 slides in the opposite direction, and the air supply hole 10 of the front wall 3C closes.
1, the air supply hole 10 of the top plate 3a
a and the ventilation hole 12a communicate with each other to form the air supply hole 10a.
The ventilation holes 12, 12 are arranged in a staggered manner as shown by the dotted arrows in FIG.
Drill a. Therefore, by sliding the shutter plate 11 by a predetermined amount left and right using the operating knob 13 shown in FIG. The air supply holes 10, 10a of the set are always open. In the above embodiment, the ventilation holes 12, 12a are arranged in a staggered pattern, but this can be reversed so that the air supply holes 10, 10a are arranged in a staggered pattern, and the ventilation holes 12, 12a are arranged directly opposite each other. However, the same thing does not require much explanation.

14, 14a are sound deadening plates, and one sound deadening plate 14 is
It is attached to a shutter plate 11 which is slidably superimposed on the indoor side wall surface 300 of the air supply box 1, and slides together with the shutter plate 11. The other sound deadening plate 14a is installed inside the outdoor box body 2 so as to cover the entire surface of the intake hole 8. As shown in FIGS. 4 and 5, the sound deadening plates 14 and 14a are provided with a large number of through holes 15 on the entire surface.
A punched plate of expanded metal, punched metal, or the like having an area of 50% or less, that is, an aperture ratio of 50% or less, is used, and the shape of the through hole 15 is not limited to that shown in the drawings.

Next, as shown in FIG. 2, a guide plate 16 is disposed inside the air supply box 1, and a bent air passage 17 communicating with the air intake hole 8 and the air supply hole 10 is formed. The guide plate 16 is made by pasting an appropriate sound absorbing material 19 on a core material 18 made of aluminum or the like, and attaching the core material 18 to the side plates 4, 4.
b, by using appropriate means, such as Utility Application No. 57-73648 (Utility Model Application No. 73648, filed earlier by the present applicant).
No. 177488), the air supply box 1 configured as described above is fitted into the mounting hole 9 drilled in the wall surface 20, and the side plates 4, 4a are screwed together. It is attached by fixing it to the wooden frame 22 with 21. Mounting hole 9 in this application
Although the wooden frame 22 is fitted into the opening 21 made in the wall surface 20, the present invention is not limited to this.
The purpose of the present application can be achieved with any device that can fit and fix the air supply box 1. 23 in the diagram
24 is a well-known garari.

This application is configured as described above, and the outside air is
4, the air enters the air supply box 1 through the intake hole 8 and through the through hole 15 of the sound deadening plate 14a, but when the outside air passes through the through hole 15, the once compressed air is diffused again, thereby muffling the noise. The noise is reduced by the so-called "resonant silencing effect." Experiments have shown that this silencing effect is most effective when the aperture ratio is 50% or less, and taking into consideration the fact that nets used for screens etc. do not have the above effect, in this application, the aperture ratio is set as described above. Uses punched plates made of punched metal, expanded metal, etc. with a thickness of 50% or less. Sound deadening board 14
When the air that enters the air supply box 1 whose noise has been muffled by a is passed through the bent air passage 17, the noise is absorbed and interfered with by the sound absorption effect of the sound absorbing material 19 and the interference effect of the bending path. The outside air is muffled again by the sound deadening plate 14 on the front wall 3C side, and
Alternatively, the air is supplied into the room through the air supply holes 10, 10a which are open on either side of the top plate 3a. Therefore, in this application, the outside air supplied into the room is muted and sound-absorbed by the two sound-absorbing plates 14, 14a and the sound-absorbing material 19, so most of the noise is eliminated and no large noise enters the room. This allows for comfortable ventilation without having to do anything.

Needless to say, when using the ventilation system of the present application, it is desirable to open the air supply hole 10 bored in the front wall 3C as shown in Fig. 2 and introduce the maximum amount of air for ventilation. Manufacturers also provide guidance on the correct and proper use as described above. However, as mentioned above, on the user side,
Many people do not like the discomfort caused by the draft of the outside air that is introduced and press down on the upper body, so they close the air supply hole 10 on the front wall 3C and use fire in an inappropriate manner. Since the ventilation holes in these ventilation systems were completely closed, there was a risk not only of air contamination but also of oxygen deficiency accidents. Accordingly, in the present application, as described in detail above, air supply holes 10 and 10a are formed in the front wall 3C and the top plate 3a, respectively, and when one set of air supply holes is opened in the shutter plate 11, the other set of air supply holes are opened. When the air supply holes of the set of air supply holes are closed, that is, the air supply holes 10 of the front wall 3C are opened, the top plate 3
When the front wall 3C is closed and the front wall 3C is closed, the air supply hole 10a of the top plate 3a is configured to open, and the opening area of the air supply hole 10a of the top plate 3a is at least suitable for ventilation. Since the system is designed to supply the necessary minimum amount of air, even in the case of improper use as described above, the minimum necessary amount of outside air is always supplied, eliminating all the drawbacks of the conventional system. Also, top plate 3
The air supplied from A hits the ceiling and flows along it, creating a natural convection state, so it does not cause discomfort, and ventilation is constantly performed even when the person is unconscious and has no intention of ventilating.

As described above, the present application uses two sound deadening plates 14, 14a.
The sound absorbing material 19 and the bent air passage 17 not only effectively reduce the noise of the supplied outside air and provide comfortable ventilation, but also allow the front wall 3c and the top plate 3a to
Either one of the air supply holes 10, 10a drilled in the front wall 3C is always open to prevent oxygen deficiency accidents, and since the indoor air is less contaminated, there is no need for active ventilation. Even when the air supply hole 10 is closed, the air supply hole 1 of the top plate 3a is always closed.
Since the outside air is supplied from 0a, the indoor air is kept clean, and the supplied air also promotes convection in the room, which makes the temperature distribution uniform and allows effective heating and cooling. Furthermore, since the air supply box 1 is small and lightweight, the area of the wall surface 20 to be demolished is small, and it can be easily installed in an existing building.

Note that this application is not limited to the above embodiments,
The most preferable position for the air supply holes 10, 10a is as shown in the drawings, but it is also possible to drill them at other positions.In short, two sets of air supply holes 10, 10a, the purpose of the present invention can be achieved and the drilling position can be freely selected. Also, sound deadening board 1
It is also possible to omit one of the plates 4 and 14a, and the mounting position is not limited to that shown in the drawings, but the purpose can be achieved by installing it in any of the paths leading to the outside air entering the room.

[Brief explanation of the drawing]

Figure 1 is a front view, Figure 2 is an enlarged sectional view of the main parts,
FIG. 3 is a developed plan view of the front wall, top plate, and shutter plate superimposed thereon, and FIGS. 4 and 5 are plan views of the sound deadening plate. 1...Air supply box, 8...Intake hole, 9...Mounting hole,
10, 10a... Air supply hole, 11... Shutter plate, 12, 12a... Ventilation hole, 14, 14a...
...Sound deadening material, 15...Through hole, 16...Guidance plate, 17
...Air passage.

Claims (1)

[Claims for Utility Model Registration] 1. Two sets of numerous air supply holes 10, 10a are bored in the indoor wall surface 300 of the air supply box 1, and communicate with one of the sets of air supply holes 10, 10a. If this is opened, the other set of air supply holes 1
Ventilation holes 12, 0a, 10 are closed.
The shutter plate 11 having the holes 12a formed therein is slidably superimposed on the indoor wall surface 300 where the two sets of air supply holes 10 and 10a are formed, and the sound absorbing material 19 is placed inside the air supply box 1. By arranging the pasted guide plate 16, the air intake hole 8 and the air supply hole 1 are
Silence plates 14, 14a, which form bent air passages 17 communicating with air passages 0, 10a, and have a large number of through holes 15, are installed at two locations, one on the intake hole 8 side of the intake box 1 and the other on the air supply hole 10, 10a side. Alternatively, a noise-reducing ventilation device is installed at any one location, and the air supply box 1 is fitted and fixed into a mounting hole 9 drilled in a wall surface 20. 2. The noise-reducing ventilation device according to claim 1, wherein the sound-reducing plates 14, 14a are punched plates such as expanded metal or punched metal with an aperture ratio of 50% or less.