JPH0241270Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a shutter-type soundproof louver, and particularly to a shutter-type soundproof louver provided in a communicating opening of a wall, a door, a duct, etc.

[Prior art]

The structure of a conventional louver is shown in FIG.
That is, a rectangular frame 1 is provided in the opening 12 of the building wall surface 10.
4, and within this frame 14, a plurality of blades 16 are arranged vertically at predetermined intervals in a state of being inclined with respect to the air flow direction. However, although the conventional louver does not impede the passage of airflow, it has almost no mechanism to prevent the intrusion of sound from the outside or the leakage of sound generated inside the louver.

Further, in seasons when ventilation is not necessary, for example, during the intermediate seasons (spring, autumn) when air conditioning equipment is used, the ventilation vents are unnecessary and there is no need for air to enter and exit. However, in the soundproof louver shown in FIG. 1, the opening is still left as is, resulting in many inconveniences such as intrusion of external dust and intrusion of rainwater during windy weather. Therefore, as shown in FIG. 2, an opening/closing shutter device 18 is generally provided inside the louver as a separate device from the louver body, and is opened and closed as necessary by a link mechanism 20.
Used for opening and closing ventilation vents. However, providing a separate opening/closing shutter causes various disadvantages such as construction methods, manufacturing costs, installation space, and appearance problems.

Furthermore, in Japanese Utility Model Publication No. 45-12136, a plurality of blades are placed horizontally in a communication opening in a wall, and each blade is arranged so as to be swingable, and these blades are moved using a link mechanism to close the communication opening. A technique for opening and closing the section is disclosed. However, each blade of this louver is formed into a simple flat plate shape, and when the blades are open for ventilation, sound easily enters and exits, and there is no soundproofing effect, and when the blade is open for ventilation, indoor noise escapes to the outside. be.

Furthermore, in JP-A-52-100734, a plurality of inverted V-shaped shutter blades composed of a glass plate and a shielding plate are installed horizontally in a communicating opening, and a drive mechanism is used to adjust the angle between the glass plate and the shielding plate. There is one that adjusts the opening degree of the communication opening by adjusting. However, this louver has no soundproofing measures on the glass plate and shielding plate itself, and when the shutter blades are open for ventilation, sound still enters and exits, and there is no soundproofing effect, and the drawback is that indoor noise escapes to the outside. There is.

[Purpose of invention]

This invention eliminates the shortcomings of the conventional technology, eliminates the need to install a shutter, etc. to open and close the ventilation vent, provides the louver itself with an opening/closing function, and provides a shutter-type soundproof louver that has a soundproofing effect even in ventilation conditions. There is something to do.

[Structure of the idea]

In order to achieve the above object, the present invention has a wall surface,
A plurality of blades arranged horizontally in the communication opening of a door, duct, etc. are provided in the vertical direction, and the blades are formed in an inverted V-shape in cross section, and the front surface of the blade is made of a reflective material, and the back surface is is covered with sound absorbing material,
The blades are arranged at a predetermined distance from each other so as not to create a horizontal passage, and furthermore, at least one piece of the blade in an inverted V shape is configured to be swingable, so that the opening degree of the communication opening can be adjusted. It is characterized by

〔Example〕

Preferred embodiments of the shutter type soundproof louver according to the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 3, a rectangular frame 14 is provided in the opening 12 of the building wall surface 10. Fixed blades 22 are arranged on this frame 14 so as to be inclined as shown in the figure. Further, a swinging blade 24 is supported in an inverted V-shape in a pair with the fixed blade 22 so as to be freely rotatable about a hinge 26 . Fixed blade 22
A sound absorbing material 28 is provided on the back surface of the sound absorbing surface 30 to form a sound absorbing surface 30. The back surface of the swinging blade 24 is also configured in the same manner as the fixed blade 22, and a sound absorbing surface 30 is formed thereon. The surface of the fixed blade 22 and the surface of the swing blade 24 are formed of a reflective material that reflects sound.

One end 3 of a link 32 is attached to the lower end of the swinging blade 24.
4 is pivotally supported, and the other end 36 of the link 32 is pivotally supported on a movable rod 38. All of the swinging vanes 24 are connected to a movable rod 38 via links 32. A rack 40 is cut into the lower end of the movable rod 38 in FIG. 3, and a pinion 42 is engaged with the rack 40. Therefore, when the drive shaft 44 of the pinion 42 is rotated, the swing blade 24 swings about the hinge 26 via the link 32 and the movable rod 38. Note that 46 is a support member for the movable rod 38.

The operation of the embodiment of the present invention constructed as described above is as follows.

First, when the swinging blade 24 is in the position shown in FIG. 3, it forms a pair with the fixed blade 22 to form a soundproof louver in an inverted V shape. As a result, the ventilation passage 50 is formed by bending into a mountain shape, and although it effectively takes in outside air, normal noise collides with the surfaces of the blades 22 and 24 and is reflected, and the reflected sound is absorbed by the sound-absorbing material of the upper blade. 2
Sound is absorbed by 8. In this way, in this embodiment, normal noise can be effectively soundproofed even in a ventilated state.

In addition, in seasons (spring, autumn) when ventilation is not necessary in the air-conditioning equipment, the drive shaft 44 is rotated, and the fourth
As shown in the figure, the movable rod 38 is moved down and the swinging blade 24 closes the ventilation passage 50. This blocks the inflow of outside air and also blocks out loud noises.

Furthermore, in the embodiment described above, since the swinging blade 24 is swingable about the hinge 26, the width of the ventilation passage 50 can be arbitrarily changed by changing the swinging angle.

In the embodiment described above, only one of the blades forming the inverted V-shape is configured as the swinging blade, but both blades can also be configured as the swinging blade.

[Effect of idea]

As explained above, according to the shutter type soundproof louver according to the present invention, at least one of the blades formed in an inverted V shape is configured to be swingable, so there is no need to take in outside air from the ventilation hole. In some cases, the louver itself can seal the ventilation passage, preventing rainwater and dust from entering. This also provides a soundproofing effect against loud noises.

In addition, even when the louver is open for ventilation, sound-absorbing material is attached to the back side of the blade, so normal noise collides with the surface of the blade and is reflected, and the reflected sound is absorbed by the sound-absorbing material above. Soundproofed.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing the structure of a conventional louver, Figure 2 is a sectional view of a conventional soundproof louver with a shutter,
FIG. 3 is a sectional view of this embodiment, and FIG. 4 is a sectional view showing the operating state of this embodiment. DESCRIPTION OF SYMBOLS 10... Building wall surface, 22... Fixed blade, 24... Swinging blade, 26... Hinge, 28... Sound absorbing material, 32... Link, 38... Movable rod.

Claims (1)

[Scope of utility model registration request] A plurality of blades arranged horizontally in a communication opening of a wall, a door, a duct, etc. are provided in the vertical direction, and the stepped surfaces of the blades are formed in an inverted V-shape, and the surfaces of the blades are made of a reflective material. At the same time, a sound absorbing material is attached to the back surface, the blades are arranged at a predetermined distance from each other so as not to create a horizontal passage, and furthermore, at least one piece of the blade has an inverted V shape and is configured to be swingable. A shutter type soundproof louver, characterized in that the degree of opening of the communication opening can be adjusted.