JPH04194186A - Longitudinal type soundproof and waterproof louver - Google Patents

Abstract

PURPOSE:To increase waterproof effect and sound insulation effect without increasing the thickness of a lower by adjoining wing plates continuously providing rear plate sections to edges of longer inclining sections on one side of top sections to each other to provide, and forming zigzag ventilation spaces. CONSTITUTION:Wing plates 11 are constituted of front top sections 12 having shorter inclining sections 13 and longer inclining sections 14, rear plate sections 16 continuously provided to rear end edges of the longer inclining sections 14, small flashing projecting pieces 17 and large flashing projecting pieces 18 provided respectively to the shorter inclining sections 13 and rear plate sections 16 and sound absorbing materials 19 loaded to the rear of the top sections 12 and the front of the rear plate sections 16. After that, a large number of wing plates 11, 11... are fixed lengthwise in parallel with each other, and ventilation spaces 21 are formed between the wing plates 11 to form a lower A. Drops of water from the front side are caught with the flashing projecting pieces 17 and 18, most noises on the rear side are absorbed with the sound absorbing materials 19 on the rear of the top sections 12, a part of reflected noises is absorbed with the sound absorbing materials 19 on the front of the rear plate sections 16.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is attached to a vent in a building, etc., to ensure necessary ventilation, prevent rainwater from entering from outside,
This invention mainly relates to a vertical soundproofing and waterproofing louver that blocks noise from inside.

(Prior Art) Conventionally, as shown in FIG. 5, as shown in FIG. 5, water return protrusions 2, 2 are attached to various parts of the slat main body 1, which has a chevron-shaped cross section. There is a type (Japanese Unexamined Patent Publication No. 61-98890) in which protruding parts are arranged parallel to each other and a sound absorbing material 3 is attached to the inner surface of the chevron shape.

This conventional louver has a high waterproof effect and good ventilation, or the thickness a of the entire louver must be increased to improve the soundproofing effect, and one side of the ventilation gap 4 does not have sound absorption properties. However, due to the structure, there was a problem that a high sound insulation effect could not be expected.

Particularly in the case of rain, the surface of the sound absorbing material 3 becomes wet, resulting in a decrease in sound insulation properties.

(Problems to be Solved by the Invention) In view of the above-mentioned problems, the present invention has a large waterproof effect, and a high sound insulation effect can be obtained without increasing the thickness of the louver, and the sound insulation effect does not deteriorate even during rain. The purpose is to provide a vertical soundproof and waterproof louver with less noise.

(Means for Achieving the Object) The features of the present invention for achieving the above-mentioned objects include: a peripheral frame having a pair of horizontal horizontal bars in an upper and lower arrangement; In a vertical soundproofing and waterproof louver, which is equipped with a large number of slats and serves as a ventilation gap between the slats,
The slat has a chevron-shaped portion on the front side that has a short chain diagonal portion and a long chain diagonal portion with different widths on the left and right, and a rear end edge of the long chain diagonal portion that is continuous in a direction perpendicular to the thickness direction. It is composed of a rear plate section provided in the arrangement, and a water return protrusion provided on the front side of each open side edge of the short chain slope section and the rear panel section, and the wing plates are brought close to each other and the blades are moved back and forth between them. A zigzag-shaped ventilation gap is formed, and a sound absorbing material such as glass wool is fixed to the back surface of the mountain-shaped portion and the front surface of the rear flat plate portion.

(Function) In the vertical soundproofing and waterproofing louver of the present invention, when wind and rain blow on the front side, the flow speed increases and enters the short chain sloped portions because the depths between the mountain-shaped portions are gradually narrowed. Approximately half of the water droplets are captured when going over the water return protrusion on the edge 6 Furthermore, by being bent in a jittery manner at the front position of the rear plate, most of the remaining water droplets are captured by the water return protrusion on the rear plate. Water droplets are captured.

On the other hand, the %i sound on the back side enters from the open part on the back side of the ventilation gap and collides with the sound absorbing material on the back side of the chevron part, so most of it is absorbed. The sound is absorbed and attenuated by the sound absorbing material on the front.

(Example) Next, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show a first embodiment of the present invention, and in the figures, A is a rattle and 10 is an outer peripheral frame.

The outer peripheral frame 0 consists of upper and lower horizontal bars 10a, 10a and vertical vertical bars 10b, 10b on both sides.

Between the horizontal bars 10b and 10b, there are many blade plates 11°11...
. . . are fixed vertically in parallel with each other, and a ventilation gap is formed between each of these vanes to form a louver A.

The blade plate 11 has a --like cross-sectional shape when viewed from above and below, and has a chevron-shaped portion 12 on the front side of the louver A as shown in FIG.
The chevron shape is composed of a long chain diagonal portion 14, a short chain diagonal portion 13 formed to have approximately half the width of the long chain diagonal portion 14, and a top surface portion 15. A rear plate portion 16 in a direction perpendicular to the thickness direction of the louver A is continuous to the rear edge side of this mountain-shaped long chain oblique portion 14. A small water return protrusion 17 is provided on the front side of the open side edge of the short chain slanted portion 13, and a large water return protrusion 18 for changing the wind direction is provided on the front side of the open side edge of the rear plate portion 16 in the vertical direction. It is continuously protruding from the Further, each vane plate 11 has a sound absorbing material 19 such as glass wool attached to the back surface of the chevron-shaped portion 12 and the front surface of the rear plate portion 16, and the surface thereof is covered with a perforated plate 20.

Each of the slats 11 configured as described above is mounted in the outer peripheral frame 10 in the same direction, and on one side, the open edge side of the short wound part 13 is located approximately at the center of the long chain oblique part 14 of the slats 11 adjacent to each other on one side. are opposed to each other, and the open side edge of the rear plate portion 16 is positioned approximately at the central back of the chevron-shaped portion 12 of the adjacent blade plate 11 on the other side, and between each of the blade plates 11, 11... A ventilation gap 21 having a zigzag shape in cross section is formed.

In the figure, IIA and IIB are divided blade plates arranged on both side edges of the louver A, and the above-mentioned blade plates 11 are divided into appropriate widths according to the total width of the louver A.

3 and 4 show a second embodiment of the present invention, in which a laterally symmetrical center blade plate 22 is provided at the center of the outer peripheral frame 10. This central blade plate 22 is constructed by vertically dividing the blade plate 11 described above from the center of the chevron-shaped portion 12, connecting the divided pieces of the long chain oblique portion 14fFI to each other in a symmetrical arrangement, and forming the blade plate 11 on the left and right sides in opposite directions. .11... are arranged to form ventilation gaps 21, 21... similar to those described above.

The above-mentioned louver according to the present invention is installed in a ventilation opening such as a ventilation opening with the chevron-shaped part 121) It of the blade plate 11 facing outdoors, and when wind or rain blows from the outside, the ventilation gap 21 closes. On the front side, since the back side between the winter mountain-shaped parts 12 is narrower, the airflow is not accelerated and enters along the long chain slope part, and its direction is changed at the front of the rear plate part 16, and Most of the water droplets are captured by the large water return protrusion 18 when they pass over the large water return protrusion 18, and flow downward along it. Further, by colliding with the back surface of the chevron-shaped portion 12, water droplets are removed again and blown out from the back surface of the louver toward the indoor side.

In addition, since sound-absorbing material is placed on either the front or back of each part of the louver slats 11, the sound of the elbows on the indoor side is difficult to be emitted outdoors through the slats, and moreover, The vibration of the sound that enters the ventilation gap is caused by the chevron part 1.
The sound vibrations that are absorbed by the sound absorbing material on the back surface of the back panel 2 and further reflected and hit the front surface of the rear panel section are further absorbed here.

(Effects of the Invention) As described above, the vertical soundproofing and waterproof louver of the present invention has the sloping part on one side of the chevron-shaped part lengthened, and the slats with the rear plate part continuous to the edge thereof are installed adjacent to each other. By forming the zigzag ventilation gap, the exposed indoor part and the exposed outdoor part of the ventilation gap can be divided into sound absorbing and waterproofing functions, and the overall thin structure and high sound absorbing and waterproofing effect can be obtained. This is what became.

In addition, since the outdoor side of the slats is mountain-shaped, the open gap on the outdoor side where rainwater enters is wide, and the gap narrows at the back to create a zigzag shape, so rainwater can enter with the wind from the outdoor side. This is a more complete way to remove ice and rain.

[Brief explanation of the drawing]

Fig. 1 is a front view of the first embodiment of the present invention, Fig. 2 is the same, partially omitted cross-sectional view, Fig. 3 is a front view of the second embodiment of the present invention, and Fig. 4 is the same, partially omitted. Cross-sectional view, FIG. 5 is a cross-sectional view of a conventional example. A...Garari, 10...Outer frame, 10
a...Horizontal beam, 10. b... Vertical bar, 11
・・・・・・Feather board, 12... Chevron-shaped part, 13・
...Short chain oblique part, 14...Long furnace oblique part, 15
...Top part, 16...Rear plate part, 17
...Small water return projecting piece, 18... Large water return projecting piece, 19 ... Sound absorbing material, 20 ... Perforated plate, 21 ... ...Ventilation gap, 22...Central slat.

Claims (1)

[Claims] In the vertical soundproofing and waterproof louver, the vertical soundproofing and waterproof louver is equipped with a peripheral frame having a pair of horizontal horizontal bars arranged vertically, and a large number of blade plates fixed vertically between the horizontal bars, and a ventilation gap is formed between the blade plates. The blade plate has a chevron-shaped part on the front side having a short slope part and a long slope part with different widths on the left and right, and a continuous arrangement in a direction perpendicular to the thickness direction of the louver on the rear edge of the long slope part. A zigzag-shaped ventilation system that is composed of a rear panel section, and water return protrusions provided on the front surface of each open side edge of the short inclined section and the rear panel section, and that brings each vane panel close to each other and communicates back and forth between them. A vertical soundproofing and waterproofing louver, characterized in that a gap is formed and a sound absorbing material such as glass wool is fixed to the back surface of the chevron-shaped part and the front surface of the rear flat plate part.