JPS6137530B2 - - 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 particularly to a ventilation hole built into the ventilation hole to form a meandering passage within the ventilation hole. Regarding soundproof tubes.

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 soundproofing 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, the present invention includes two pairs of side plates having a sound absorbing material fitted along the upper and lower and left and right side walls of a cylindrical body, and a partition having a sound absorbing material on either the upper and lower or left and right side plates. A soundproof tube is formed with a meandering passage between the intake and exhaust ports formed on both the front and rear walls of the cylindrical body.This soundproof tube can be simply inserted into the ventilation hole. It is possible to form a meandering passage within the ventilation hole that exhibits an excellent soundproofing effect.

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 an 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 cylindrical body 11 formed of a hard material such as hard synthetic resin in a hole 10 opened in a frame 2 such as a wall of a building,
A louver 12 is attached to the outdoor opening of the cylindrical body 11, and a register 13 is attached to the indoor opening, and a soundproof tube A is fitted into the cylindrical body 11.

The cylindrical body 3 constituting the soundproof cylinder A has both front and rear walls 4 formed separately from the main body 3a, and has intake and exhaust ports 5 at the bottom of one and the top of the other, respectively. has been established. Furthermore, two pairs of side plates 8a, 8b having sound absorbing materials 7 made of glass wool, urethane foam, styrene foam, etc. are fitted into the main body 3a of the cylindrical body 3 along the upper and lower and left and right side walls 6a, 6b. A pair of upper and lower side plates 8a are each provided with a partition plate 9 having a sound absorbing material 7, and a meandering passage a is formed between the intake and exhaust ports 5.
is beginning to form.

Therefore, according to this embodiment, one of the front and rear walls 4 is first attached to the main body 3a of the cylindrical body 3, and then the two pairs of upper and lower and left and right side plates are attached from the remaining opening of the main body 3a. The soundproof cylinder A can be assembled by fitting the parts 8a and 8b along the upper and lower and left and right side walls 6a and 6b, and finally attaching the other of the front and rear walls 4. In addition, when assembling the soundproof cylinder A, the upper and lower and left and right side plates 8a and 8b are
It is also possible to assemble them in advance by means of adhesive or the like, and to fit this assembled thing into the main body part 3a of the cylindrical body 3.

As described above, in the soundproof cylinder of the present invention, the cylindrical body inserted into the ventilation hole has suction and exhaust ports on both the front and rear walls, and either or both of the front and rear walls are connected to the main body of the cylindrical body. Two pairs of side plates formed separately from the cylindrical body and having sound absorbing materials are fitted along the upper and lower and left and right side walls of the cylindrical body, and a partition wall having sound absorbing materials on either the upper or lower or left and right side plates. A meandering passageway is formed between the air intake and exhaust ports, so simply by inserting the soundproof cylinder into the ventilation hole, a meandering passageway that exhibits an excellent soundproofing effect can be formed inside the ventilation hole. In particular, this meandering passageway has extremely good soundproofing because not only each partition plate is coated with sound-absorbing material, but also the side panels covering the inside surfaces of the upper, lower, left, and right side walls are also coated with sound-absorbing material. It is effective. Moreover, when assembling the soundproof tube, it is only necessary to fit two pairs of side plates (top, bottom, left and right) into the main body of the tube and attach one or both of the front and back walls, which greatly improves the work efficiency of the assembly process. In addition to the improved performance, each part can be mass-produced and can be manufactured by assembly-line operations, resulting in a significant reduction in manufacturing costs.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a ventilation hole to which a soundproof tube according to an embodiment of the present invention is applied, and FIG. 2 is an exploded view of the soundproof tube of FIG. 1. A... Soundproof cylinder, a... Passage, 1... Ventilation hole, 2
...Structure, 3...Cylindrical body, 3a...Main body, 4...
...Both front and rear walls, 5... Suction/exhaust port, 6a... Upper and lower side walls, 6b... Left and right side walls, 7... Sound absorbing material, 8a...
...Upper and lower side plates, 8b...Left and right side walls, 9...Partition plate.

Claims (1)

[Claims] 1. In a soundproof tube A that is fitted into a ventilation hole 1 provided in a frame 2 of a building wall, etc. to form a meandering passage a within the ventilation hole 1 and absorb noise, The cylindrical body 3 to be fitted into the cylindrical body 3 is provided with suction and discharge ports 5 on both its front and rear walls 4, and one or both of the front and rear walls 4 are formed separately from the main body 3a of the cylindrical body 3, Two pairs of side plates 8a and 8b having sound absorbing material 7 are fitted along the upper and lower and left and right side walls 6a and 6b of the cylindrical body 3, and the sound absorbing material 7 is fitted to either the upper or lower or left and right pair of side plates 8a. A soundproof tube for a ventilation hole, characterized in that a diaphragm 9 is provided to form a meandering passage a between the intake and exhaust ports 5.