JPS6320991B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a ventilation device that performs ventilation and noise reduction.

Ventilation is achieved through openings in walls, windows, and aluminum sashes with ventilation frames. Because the room performs ventilation, outside noise enters through the path through which air flows in and out. This reduces the sound insulation performance of the soundproof wall structure and soundproof sash. We are trying to solve this problem by installing sound deadening boxes. However, conventional noise-reducing boxes are independent from the building, and one side of the muffler is connected directly or through a duct to the building ventilation opening, and the noise-reducing box protrudes into or outside the building and is connected to the floor surface. When installed in a large area, it will occupy a large area.

The idea disclosed in Japanese Utility Model Publication No. 51-45894 is to provide a partition plate on a horizontal member such as an upper frame of an opening frame to provide an air passage that meanders up and down. This has almost no soundproofing effect, and since the partition board is a single flat plate in this design, the cross members are installed as special extruded shapes, and due to manufacturing reasons, special frame materials are required when installing a ventilation system. In need of.

Similarly, in the idea of Japanese Utility Model Application Publication No. 52-16246, when a partition plate is installed on a ventilation frame, it slides into the grooves in the longitudinal direction inside the ventilation frame, so the ventilation frame becomes a special extruded material and is sound-absorbing. Special frame materials are required when used as a ventilation system.

The present invention has been made in view of the above-mentioned problems of conventional noise-reducing ventilation devices, and it is an object of the present invention to provide a ventilation device with a noise-reducing effect that can be appropriately installed on a long structural member of a building that does not protrude into or out of the building wall. The purpose is to

In the present invention, a long structural member that demarcates the inside and outside of a building has a surface perpendicular to the inner wall surface that faces the opposite surface, forming a cylindrical internal space, and facing the outside of the building leading to the internal space. The opening and the opening facing the inner side are provided at the end of the same side in the longitudinal direction of the component, and the cross section is Z-shaped in the longitudinal direction of the component, and both side surfaces are opposite surfaces perpendicular to the wall surface of the component. End blocks that close the inside of the long component are fixed to both ends of a partition plate having a length shorter than the length of the component that comes into contact with the partition plate, and are inserted so as to block the openings on both sides of the long component. By fixing and partitioning the internal space with a partition plate, and providing an opening in the partition plate at the end on the side away from the opening of the component material through which the inner and outer spaces on both sides of the partition plate pass, the space between both openings of the component material can be fixed. This is a noise-reducing ventilation device that can reduce noise by configuring a curved ventilation passage in the internal space of the components.

Embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a front view of the sliding window seen from the outside.
2 is an enlarged cross-sectional view parallel to the wall surface of the section A in FIG. 1, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, and FIG. 4 is a cross-sectional view taken along line B-B in FIG. 2. The vertical frame 1 of the opening frame of a sliding window has a rectangular cross section, and end blocks 2 and 3 are fitted into the vertical frame 1 at intervals in the middle part, and the end blocks 2 and 3 are fitted inside the vertical frame 1. , 3 are partitioned by a partition plate 4 inserted in the longitudinal direction of the vertical frame 1, forming two internal and external spaces 5 and 6. The end blocks 2 and 3 are the same and are provided with a triangular protrusion 7 that forms a side surface radially from the center of the cross section of the vertical frame 1, and a partition plate 4 is provided on the side surface.
The flange 8 provided on the partition plate 4 is brought into contact with the upper surface (end block 3) or lower surface (end block 2) of the protrusion 7, and the end block 2,
A machine screw 9 is inserted through the machine screw hole 3 and screwed into the flange 8 to fix it. The machine screws 11 are inserted into the machine screw holes of the vertical frame 1 and screwed into the partition plate 4, with the faces, that is, the faces facing the inside and outside coming into contact with the opposing inner faces.

An opening 12 is provided below the partition plate 4 so as to communicate between the chambers 56, and openings 13 and 14 are provided in the upper part of the vertical frame 1 at the same position on the outside and inside, respectively. A drain cover 16 equipped with an insect screen 15 is attached to the opening 13 on the outside, and a register or a ventilation fan or the like equipped with a dust screen is attached to the opening 14 on the inside, although not shown.

The ventilation passage is connected to the draining cover 16, the opening 13, the chamber 5, the opening 12, the chamber 6, and the opening 14, and external noise that attempts to enter through the ventilation passage enters the first chamber 5, which is enlarged from the opening 13, and passes through the passage section. is attenuated by the change in the aperture 12 and the refraction in the 90 degree direction.
The sound wave is refracted 180 degrees to change its propagation direction and attenuated by the effect of the orifice. After passing through the aperture 12, the sound waves proceed through the second chamber 6 and reach the aperture 1.
At 4, the sound is further attenuated by 90-degree refraction and cross-sectional change, and the sound is muffled and propagated indoors.

As described above, according to the silencing ventilation system of the present invention, the silencing structure is provided in the vertical frame of the opening frame in the structure that partitions the inside and outside of the building, and the vertical frame has openings on the outside and inside. Therefore, as a silencing device, it does not protrude beyond the structure that partitions the inside and outside of the building, does not reduce space, and does not reduce floor space. Since the ventilation passage meanders in the longitudinal direction of a long structural member such as a vertical frame, outside air can be introduced without reducing the sound insulation performance when the window is a soundproof sash, which has a large noise damping effect. It is sufficient that the constituent material is cylindrical and that the internal and external surfaces thereof form opposing surfaces.Such a cylindrical body is a common one, and a partition plate with a Z-shaped cross section is simply inserted and fixed therein. Therefore, it can be constructed in almost any case as long as it is a long component, has a wide range of applications, and is easy to manufacture.

Furthermore, it is highly versatile because it is sufficient to use a partition plate with end blocks attached to both ends as a unit and insert it into a long structural member that demarcates the inside and outside of a building as needed.

Such a noise reduction device of the present invention may be attached to an upper frame, a lower frame, a mullion, a mumu, etc., or may be implemented on a frame of a shoji screen. Next, an example of the present invention regarding a blind eye will be described.

FIG. 5 is a front view of the step window seen from the outside.
The opening frame 17 is divided into upper and lower parts by a blind 18, and an inner shoji 19 and an outer shoji 21 are fitted into the upper part so that they can be opened and closed in a sliding manner, and the lower part is a fitting part 22.
A sound deadening structure 23 is applied to the blank 18 .

FIG. 6 is an enlarged sectional view taken along line CC in FIG. 5, and FIG. 7 is an enlarged sectional view taken along line DD in FIG. Both ends of the blind 18 are fixed to the vertical frame 24. Rails 25 and 26 are formed on the mumu 18, and the inner shoji 19 and the outer shoji 2
A door roller (not shown) fixed to rail 25,
26, and the lower part of the blind 18 is fitted with the attachment material 28 into the locking groove 27.
Although details are not shown in the groove 29 between 8 and 18, the glass 32 is formed by a pair of glazing beads 31.
The upper part of the fitting part 22 is formed by holding the part.

End blocks 33 and 34 having substantially the same cross-sectional shape as the cross-sectional shape of the cross-section 18 are inserted at intervals in the inner middle part of the cross-section 18, and a caulking material with adhesive strength is applied in the gap between the cross-section and the cross-section 18. has been done. The interior of the mesh 18 between the end blocks 33 and 34 is partitioned by a partition plate 35 to form two chambers 36 and 37. The end blocks 33 and 34 are symmetrical and face each other, and are provided with a groove into which the end of the partition plate 35 having a U-shaped cross section is fitted.
9 is in contact with the opposing surfaces of the end blocks 33, 34, and is fixed by inserting a small screw 41 into the small screw hole of the end blocks 33, 34.

An opening 42 communicating with the chamber 36 from the outside is provided in the opening 18 near the end block 33, and a chamber 37 is provided on the inside side of the opening 18 at a position approximately the same distance from the end block 33 as the end block 33 and the opening 42. An opening 43 is provided in the partition plate 35 on the side closer to the end block 34.
4 is provided. The opening 42 is covered with an insect repellent net 45 that can be easily installed and removed, and the opening 43 is covered with an insect repellent net 46 that can be installed and removed, and a ventilation fan unit 47 is attached to the inside thereof.

Opening 42, chamber 36, opening 44, chamber 37, opening 4
3 to form a ventilation passage, so when the ventilation fan is turned on, indoor air is taken in or exhausted. External noise passing through the ventilation passage enters the chamber 36 with a large cross-sectional area through the opening 42 and changes direction and is attenuated.
It passes through the opening 44, is constricted, is attenuated by the effect of the orifice and the effect of refraction, enters the chamber 37, and enters the chamber 3.
7, is refracted at the opening 43, is further attenuated by the cross-sectional change, and reaches the room.

As described above, this embodiment has the same effects as the first embodiment, and also has the advantage of being able to use ordinary open extruded shapes as they are.

Figure 8 is a front view of the window seen from the outside,
An inner shoji 49 and an outer shoji 51 are fitted into the opening frame 48 , and the upper stile of the outer shoji 51 is divided into an upper stile upper member 52 and an upper stile lower member 53 , and these ends are connected to the outer shoji 51 . It is fixed to the vertical stile and the stile, and a noise-reducing ventilation device is installed between the upper stile upper member 52 and the upper stile lower member 53. FIG. 9 is an enlarged sectional view taken along the line EE in FIG. 8. The ventilation frame 101 is fitted into the upper frame upper member 52 and the upper frame lower member 53 by fitting parts 54 and 55, and inside the ventilation frame 101, there are end blocks 2, 3 is fixed, and the partition plate 4 is fixed by inserting the small screw hole of the ventilation frame 101 and screwing the small screw 11 into the partition plate 4. An opening 13 communicating with the chamber 6 and an opening 14 communicating with the chamber 6 are open, and the partition plate 4 has an opening 1 communicating between the chambers 5 and 6 near the end block 3.
2 is provided.

With such a configuration, it functions in the same way as the first embodiment.

FIG. 10 is an exploded perspective view of an embodiment of the present invention configured in a column, in which a noise-reducing ventilation system is constructed within the column 111, as in the first embodiment. The same reference numerals as in the first embodiment are given to the figures, and the explanation thereof will be omitted. Pillar 1
11 can be designed to have a greater sound-dampening effect when it has a large cross section that extends inwardly or outwardly from the wall surface.

FIG. 11 shows an embodiment of an opening having a transom and a sleeve, in which the opening 301 has an upper frame 302,
A sleeve 305 is constructed by partitioning with a mullion 304 fixed to the lower frame 303, and the mullion 304 and the vertical frame 306
Both ends of a blind 307 are fixed in between, and a double door 308 is provided. In such an opening, a sound deadening structure 309 of the sound deadening ventilation system of the present invention is provided in a portion surrounded by the upper frame 302, blind 307, vertical frame 306, and mullion 304 that constitute the transom. Alternatively, a sound damping structure 311 of the sound damping ventilation device of the present invention is provided above the sleeve 305. Sound deadening structure 309,
311 is almost the same as the embodiment of the ventilation frame.
Reference numeral 312 is a mailbox. In this example, since the space is partitioned by an opening frame in the interior and exterior directions, the mounting flange is attached to the box of the noise-reducing ventilation system so that the dimensions are the same as the glass dimensions determined by the sash frame. Since it is only necessary to attach it, it can be installed in place of glass, and it is convenient for standardization. By installing it in place of the glass in the fitting part of soundproof sash etc., it becomes a ventilation device that does not reduce the soundproofing effect.

As described above, the noise-muffling ventilation system of the present invention can be configured on any of the constituent materials that separate the interior and exterior of the building, and the installation parts can be selected depending on the amount of ventilation, thereby making it possible to configure a noise-muffling ventilation system.

Since the partition plate has a Z-shaped cross section, when it is inserted into a long component that demarcates the inside and outside of a building, the width of the contact surface between the component and the partition plate is large and stable. Moreover, irrespective of the size of the mounting surface of the partition plate, the long component that defines the inside and outside of the building is divided into two spaces with approximately equal cross-sectional areas by the diagonal portion of the Z section. Since the end block is fixed to the partition plate so that it can be inserted into the long component, the cross section of the long component remains the same, such as an extruded section, and special special measures are taken to create a noise-absorbing ventilation structure. No need to shape it.

Next, examples will be described in which each of the present inventions further enhances the silencing effect. Figure 12 is a vertical sectional view in the internal and external directions, and Figure 13 is H in Figure 12.
-H cross-sectional view. Although it can be applied to any of the noise-reducing ventilation devices already described, it is suitable for embodiments that do not include a ventilation frame or a ventilation frame. 12 and 13 relate to the first embodiment.

In this embodiment, a sound deadening box 60 is attached to the outside, and the flange of a hood 63 contacts the vertical frame 1 so as to cover the opening 13, and a machine screw 64 is inserted into the vertical frame 1 by inserting the machine screw hole in the flange of the hood 63. Fixed by screws.

As shown in FIG. 15, the horizontal cross section of the hood 63 is a constant cross section consisting of a circular part and a square part, and the cross section gradually becomes narrower in the upper part, so that water can be drained. The lower part is covered by a cover 66 fitted into an inner circumferential groove of the hood 63, which has an opening 65 smaller than the horizontal cross section of the hood 63, and an insect screen 67 is removably fixed to the opening 65.

A sound absorbing material 68 such as glass wool is pasted on the inside of the hood 63.

According to this embodiment, intruding sound from the outside is attenuated in the sound deadening box 60, and furthermore, external noise is muffled by the sound deadening structure constructed in the vertical frame 1.
Experiments have shown that the silencing box 60 effectively attenuates sounds in the middle and low frequencies, and the silencing structure of the vertical frame 1 effectively attenuates sounds in high frequencies.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the present invention, and is a front view seen from the outside of the window, Fig. 2 is an enlarged sectional view parallel to the plane of the paper of section A in Fig. 1, and Fig. 3 is an A of Fig. 2. - A sectional view, FIG. 4 is a BB sectional view in FIG.
Fig. 6 is an enlarged sectional view taken along line CC in Fig. 5, Fig. 7 is an enlarged sectional view taken along line DD in Fig. 6, and Fig. 8 shows yet another embodiment, viewed from the outside of the window with ventilation frame. front view,
9 is an enlarged sectional view taken along line EE in FIG. 8, FIG. 10 is an exploded perspective view of another embodiment of the present invention, and FIG. 11 is a front view of another embodiment of the present invention as seen from the outside. FIG. 12 is a longitudinal sectional view showing an example of application of the present invention;
FIG. 13 is a sectional view taken along the line HH in FIG. 12. 1... Vertical frame, 2, 3... End block, 4... Partition plate, 5, 6... Chamber, 12, 13, 14... Opening, 1
5...Insect screen, 16...Drainer cover, 17...Opening frame, 18...Made, 19...Inner shoji, 21...Outer shoji,
22... Fitting part, 23... Sound deadening structure, 33, 34
...End block, 35...Partition plate, 36, 37
... Room, 42, 43, 44... Opening, 45, 46... Insect screen, 47... Ventilation fan unit, 48... Opening frame, 4
9...Inner shoji, 51...Outer shoji, 52...Upper stile upper member,
53... Upper stile lower member, 54, 55... Fitting part, 6
0...muffling box, 63...hood, 65...opening,
66...Cover, 67...Insect screen, 68...Sound absorbing material, 1
01... Ventilation frame, 111... Column, 309, 311... Sound deadening structure.

Claims (1)

[Claims] 1. The long structural members that demarcate the inside and outside of a building have a cylindrical interior space with the faces perpendicular to the inner wall faces facing each other, and an opening facing the outside of the building that leads to the interior space. An opening facing the inside is provided at the end of the same side in the longitudinal direction of the component, and the cross section is Z-shaped in the longitudinal direction of the component, and both side surfaces are in contact with opposing surfaces perpendicular to the wall surface of the component. End blocks that close the inside of the long component are fixed to both ends of a partition plate whose length is shorter than the length of the component, and are inserted and fixed so as to block the openings on both sides of the long component. , the internal space is partitioned by a partition plate, and an opening is provided in the partition plate at the end on the side away from the opening of the constituent material, through which the inner and outer spaces on both sides of the partition plate pass, thereby creating a configuration between both openings of the constituent material. A noise-reducing ventilation device that can reduce noise by configuring a curved ventilation passage in the internal space of the material.