JPS621494B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ventilation hole provided in a wall of a building for indoor ventilation, and in particular, a partition plate and a partition plate perpendicular to the partition plate in a soundproof cylinder forming the ventilation hole. The present invention relates to a sound-absorbing tube which is formed separately from a connecting member to be connected, has a meandering ventilation passage formed therein, and has a sound-absorbing material attached thereto to enhance its sound-absorbing effect.

Conventionally, ventilation holes are made to provide ventilation between indoors and outdoors by fixing registers or louvers to the inner and outer openings of holes made in walls, etc., or inserting appropriate hoods into the holes. The format was to do this. Therefore, in noisy industrial areas, airports, and their surrounding areas, there was a problem in that noise entered indoors through ventilation holes. In addition, it has been proposed that the ventilation hole in the boiler room or the ventilation hole attached to the sash has a meandering passage and the inner wall surface forming this passage is equipped with sound absorbing material, but in such a ventilation hole, Although it has an excellent sound absorption effect, it is very difficult to form a meandering passage inside the ventilation hole or attach sound absorbing material to the inner wall surface, and it takes a lot of time and money to manufacture the ventilation hole. There was a problem in that the ventilation holes were expensive.

In view of this point of view, the present invention provides a soundproof tube that is fitted into a ventilation hole provided in a frame of a building such as a wall, forms a meandering ventilation passage in the ventilation hole, and absorbs noise. A cylindrical body with openings at both ends, a plurality of partition plates that are formed separately from the cylindrical body and that form a meandering ventilation passage inside the cylindrical body, and a connection that is orthogonally connected to these partition plates. and a passage forming member fitted into the cylindrical body, and a sound absorbing material is attached to the partition plate, thereby solving various problems with the conventional ventilation hole. This provides a soundproof tube with ventilation holes that can be used.

Hereinafter, the content of the present invention will be described in detail based on embodiments shown in the accompanying drawings.

1 and 2, a soundproof tube A according to a first embodiment of the present invention and a ventilation hole 1 to which this soundproof tube A is applied are shown. This ventilation hole 1 has a hole 8 in a frame 2 such as a wall of a building, and a cylindrical part 9 that is fitted and fixed into the hole 8 of the frame 2 on the outdoor side.
It is formed by providing a louver 10 with a louver 10 and arranging a register 11 on the indoor side of the louver 10, and forming a meandering ventilation passage a in the ventilation hole 1 and a soundproof tube A for absorbing noise. ing.

The soundproof tube A includes a cylindrical body 3 formed in a cylindrical shape from a hard material such as a hard synthetic resin and open at both front and rear ends, and a meandering ventilation passage a that is fitted into the cylindrical body 3. and a passage forming member 4 that forms a passageway. The cylindrical body 3 has a flange 12 protruding outwardly formed at the indoor opening edge thereof, and this flange 12 is brought into contact with the indoor opening edge of the hole 8 to form a cylindrical shape. The body 3 is fixed to the ventilation hole 1, and the register 11 on the indoor side is attached to the flange 12.
It is now possible to install the .

In addition, the passage forming member 4 connects a plurality of partition plates 5 alternately arranged in upper and lower stages with a plate-shaped connecting member 6.
The sound absorbing material 7 made of glass wool, urethane foam, styrene foam, etc. is attached to the entire surface of each partition plate 5 and the connecting member 6 by means of adhesion or by means of adhesion or the like. It is attached by integral molding when the material 6 is manufactured.

Next, the soundproof tube A of the second embodiment shown in FIG.
Unlike the case of the above embodiment, each partition plate 5 is provided with a locking pawl 13, and the connecting member 6 formed in a substantially U-shape is locked with the locking pawl 13, so that the partition plate 5 can be moved in the vertical direction. They are orthogonally connected to form a passage forming member 4, and each partition plate has a sound absorbing material (not shown) attached to both sides thereof.

As described above, the soundproof cylinder of the present invention is composed of a cylindrical body with openings at both front and rear ends, and a passage forming member that is fitted into the cylindrical body to form a meandering passage. It is made up of partition plates and a connecting material that connects these partition plates, and each partition plate has a sound absorbing material attached to at least one or both sides of the partition plate, so that ventilation can be carried out from the outdoor side of the ventilation hole to which this soundproof cylinder is applied. The noise that enters the meandering path is prevented from going straight, and at least is absorbed by contacting the sound absorbing material attached to each diaphragm, which significantly reduces the amount of noise that permeates indoors. The assembling work of the soundproof tube is extremely easy, and the manufacturing of the ventilation hole that has a meandering ventilation passage and exhibits an excellent soundproofing effect is extremely simple, and the manufacturing cost thereof can be significantly reduced. Furthermore, since the passage-forming member is formed separately from the cylindrical body, it is easy to remove it during use, repair or clean the inside, and maintenance and inspection can be carried out reliably and at all times. It can perform ventilation function.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a ventilation hole to which a soundproof cylinder according to the first embodiment of the present invention is applied, Fig. 2 is an exploded view showing the soundproof cylinder of Fig. FIG. 3 is an exploded view showing the soundproof tube. A... Soundproof tube, a... Ventilation passage, 1... Ventilation hole, 2... Frame, 3... Cylindrical body, 4... Passage forming member, 5... Partition plate, 6... Connecting material, 7 ...Sound absorbing material.

Claims (1)

[Claims] 1. In a soundproof tube A that is fitted into a ventilation hole 1 provided in a frame 2 such as a wall of a building to form a meandering ventilation passage a in the ventilation hole 1 and absorb noise, the above-mentioned soundproof tube A A cylindrical body 3 having openings at both ends, a plurality of partition plates 5 formed separately from the cylindrical body 3, and forming a meandering ventilation passage a inside the cylindrical body 3. A passage forming member 4 is fitted into the cylindrical body 3, and a connecting member 6 is orthogonally connected, and a sound absorbing material 7 is attached to at least the partition plate 5. Soundproof cylinder for ventilation holes.