JP2009084962A - Waterproof and snow protection type ventilation louvre - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof and snow prevention type ventilation louvre which can obtain excellent waterproof and drainage performance while securing sufficient air permeability and also can obtain sure waterproof and snow protection performance against the rain water and snow whirled up from under. <P>SOLUTION: Each of vertical slats 7 is so formed that a cross section in the direction of the width of a frame body 2 (in the direction of inside and outside) is formed in an approximately dogleg shape and that a first arc-shaped surface 8 and a second arc-shaped surface 9 having curved directions different from each other are continued, with a refraction point 7a of the vertical slat 7 as a boundary. An opening section 18a for exhausting rain water making incursion therein is provided to the bottom section, and a drainage incline 19 inclined downward to the outside from the inside of the waterproof and snow protection type ventilation louver 1 is formed downward of the opening section 18a. A skirt section 20 covering the lower end front surface of the louvre 1 from the lower end of the horizontal slats 3 is mounted, and a drainage port 21 is formed with regard to the drainage incline 19. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a ventilation louver used to improve ventilation and prevent rainwater intrusion by attaching it to an opening of a building, etc., and more particularly to a waterproof, snowproof and drainage structure thereof. .

  Conventionally, a ventilation louver attached to an opening of a building such as a factory, a power plant, a gymnasium, a warehouse, a building, or a house for the purpose of ventilation basically has a plurality of blades as a predetermined frame. It is the structure arranged in the grid | lattice form in the horizontal direction or the vertical direction.

  By the way, the conventional ventilation louver is mainly of a type in which blades are arranged in the horizontal direction. Of course, this conventional ventilation louver is also arranged with the blades tilted downward to prevent sunlight and rain. There was a drawback of intruding inside. For this reason, it is necessary to attach a water receiver in the room or to attach a hood to the outside. Therefore, in order to ensure sufficient air permeability and prevent intrusion of rainwater in heavy wind and rain, a vertical gallery with blades arranged vertically, or a combination of horizontal blades and vertical blades combined alternately. Ventilation louvers such as layer gallery have been developed. Among them, as in Patent Document 1 or Patent Document 2 and Patent Document 3, the cross section in the width direction of the slats is formed in a substantially square shape or S shape to improve air permeability and shielding effect against wind and rain. Ventilation louvers aiming to achieve this have been proposed.

  The applicant of the present invention has made extensive studies to further improve the performance of the conventional ventilation louver, and is provided at the opening of the building. In a waterproof and snowproof ventilation louver that is provided to be ventilated with a gap between each other and is waterproofed by the slats, the cross-sectional shape in the width direction of the slats is substantially rectangular, and the refracting point of the slats is A waterproof and snowproof ventilation louver has been proposed, characterized in that arc-shaped surfaces having different bending directions are provided at the boundary (see Patent Document 4).

  On the other hand, in consideration of drainage of rainwater captured in the ventilation louver, it is preferable to provide a drainage portion at the lower part of the louver, and Patent Literature 5 proposes a ventilation louver with good drainage performance.

JP-A-5-044314 Japanese Patent Laid-Open No. 11-062419 JP-A-11-166376 JP 2002-276256 A JP 2005-194715 A

  However, by providing a drainage portion at the lower part of the louver, it is necessary to ensure waterproofing against rainwater and snow that rolls up from below. Therefore, the present invention has been intensively studied to further improve the performance of the ventilation louver and have come to the present invention. The present invention is not only able to obtain high waterproof performance and drainage performance while ensuring sufficient air permeability, but also provides a waterproof type capable of obtaining reliable waterproofing and snowproof performance against rainwater and snow rolling up from below and The object is to provide a snowproof ventilation louver.

For this reason, the present invention is provided at the opening of a building, in which a plurality of blades are arranged side by side in a lattice pattern, and are provided so as to be able to ventilate with a gap between the blades. The first feature of the snowproof ventilation louver is that a skirt portion is provided that covers the inclined surface for drainage that communicates with the front surface of the lower end of the louver and the bottom of the louver.
In addition, a waterproof and snowproof ventilation louver provided at the opening of a building, provided with a plurality of blades arranged in a lattice pattern so as to be ventilated by a gap between the blades, and waterproofed by the blades The second feature is that a net pair is provided in front of the louver.

  In the waterproof and snowproof type ventilation louver according to the present invention, the outside air flows through the gaps between the blades, but the flow of the outside air is directed downward by the horizontal blades, so that water droplets attached to the inside of the louver are blown. Ascending is eliminated. In addition, if rainwater or snow taken inside the louver is captured by the net provided on the front or front surface of the vertical blades, and if the captured rainwater or snow falls as water droplets and flows downward in the louver, The water is discharged from the drain hole formed in the bottom through the inclined surface for drainage. In addition, the skirt portion covering the front surface of the lower end portion of the louver can provide reliable waterproofing and snowproof performance against rainwater and snow rolling up from below.

  Hereinafter, embodiments of the present invention will be described based on examples shown in the drawings. 1 is a front view showing one embodiment of a waterproof and snowproof ventilation louver according to the present invention, FIG. 2 is a plan sectional view of FIG. 1, FIG. 3 is a longitudinal sectional view of FIG. 1, and FIG. FIG. 5 is an enlarged plan sectional view of the main part of the slats, FIG. 6 is a longitudinal sectional view of the main part of the lower part of the louver, and FIG. 7 is a front view showing another embodiment of the waterproof and snowproof ventilation louver according to the present invention. 8 is a plan sectional view of FIG. 7, and FIG. 9 is a longitudinal sectional view of FIG.

  1 to 3, reference numeral 1 denotes a waterproof and snowproof ventilation louver, which includes an outer surface 4 in which a plurality of horizontal blade plates 3, 3... Are integrally connected to a rectangular frame 2 made of aluminum sash, And mounting portions 40 formed on the upper and lower ends and left and right ends of the frame body 2 are attached to a mounting tool 40a installed in the opening of the building. It is configured.

  The horizontal blades 3, 3... Are made of an aluminum plate, and have an inner lower portion through a screw hole 17 from a substantially central portion inside a flat plate having folded pieces facing the inner side of the waterproof and snowproof ventilation louver 1 at both upper and lower ends. An inclined surface 3a that is curved downward is formed, and a flat plate is suspended from the lower end of the inclined surface 3a so as to form a substantially inverted letter shape. In this embodiment, the inclined surface 3a is formed in a shape curved downward, but even if it is a curved shape upward or a linear inclined surface, the inclined surface 3a is inclined downward in the interior. If you do. Preferably, in order to optimize the flow of outside air including rainwater taken in, it is formed in a shape that is curved downward as in this embodiment and is inclined toward the inside downward. Further, since the horizontal blade plates 3, 3,... Are arranged at regular intervals in the vertical direction, a plurality of horizontally elongated vent holes 6, 6 ... are similarly formed at regular intervals in the vertical direction. Further, screw holes 17 are provided at both ends in the width direction (vertical direction in FIG. 3) of the horizontal blade plate 3, and the horizontal blade plate 3 is fixed to the frame body 2 with screws 50 through the screw holes 17. The

  In the figure, 7, 7... Are vertical blades. The vertical blade plate 7 has a substantially square cross-section in the width direction (inside / outside direction) of the frame body 2, and the first arcuate surfaces 8 having different bending directions from each other at the refraction point 7 a of the vertical blade plate 7. And the 2nd arcuate surface 9 is formed continuously. Further, an intermediate groove member 10 extending from the first arcuate surface 8 outside the refraction point 7a, having a plurality of folded pieces 13, and having an inverted L-shaped cross section is formed integrally. A lower edge groove member 11 having a plurality of folded pieces 14 and having an inverted L-shaped cross section is integrally formed at the lower end edge of the arcuate surface 9. That is, the vertical blade plate 7 is constituted by a mold material having a continuous cross-sectional shape including the first and second arcuate surfaces 8 and 9, the intermediate groove member 10, and the lower edge groove member 11. Further, on the surface of the second arcuate surface 9 on the concave side, a ridge 19 formed in the vertical direction is continuously arranged along the arcuate surface. And it is supposed that outside air distribute | circulates from the outdoor to the indoor with the gap | interval 12 (ventilation path) of these vertical blades 7,7 ....

  That is, the vertical blades 7 configured as described above are arranged in parallel to each other and fixed in the rectangular frame 2. At that time, each of the vertical blade plates 7, 7... Is positioned so that one intermediate groove member 10 overlaps the other lower edge groove member 11 between adjacent ones, and one vertical blade plate 7. Are arranged in parallel so that a gap (ventilation passage) 12 having a substantially square cross section is formed between the inner side surface of the first vertical blade plate 7 and the outer side surface of the other vertical blade plate 7.

  Further, a bottom plate 18 having an opening 18a is attached to the inner bottom portion of the waterproof and snowproof ventilation louver 1 with screws 50, and further below the opening 18a from the inside of the waterproof and snowproof ventilation louver 1 to the front surface. A drainage inclined surface 19 inclined downward toward the outside is formed. Further, a skirt portion 20 that covers the front surface of the lower end portion of the louver 1 from the lower end of the horizontal blade plate 3 is attached, and a drainage port 21 is formed between the drainage inclined surface 19.

  4 and 5 are an enlarged perspective view of a main part in the width direction showing a characteristic part of the vertical blade plate 7 and an enlarged plan sectional view of the main part. As described above, the vertical blade plate 7 has the first arcuate surface 8 and the second arcuate surface 8 having a curved portion or a circular arc shape in the upper and lower sides with one point indicated by a reference numeral 7a in the figure as a refraction point. An arcuate surface 9 is provided, and an intermediate groove member 10 extending from the first arcuate surface 8 and having an inverted L-shaped cross section is integrally formed outside the refraction point 7a, and the second arcuate surface 9 is further formed. A lower edge groove member 11 having an L-shaped cross section is integrally formed in the lower end edge inward. Further, folding pieces 13 or 14 may be provided at the ends of the arcuate surfaces 8 and 9, respectively, which are integrally formed with the intermediate groove member 10 and the lower edge groove member 11, respectively. Further, on the surface of the second arcuate surface 9 on the concave side, the ridges 20 formed in the vertical direction are continuously disposed along the arcuate surface, and a rough surface 9a having a corrugated cross section is formed. . Screw holes 15 and 16 are provided at both ends in the width direction of the vertical blade plate 7, and the vertical blade plate 7 is fixed to the frame body 2 through the screw holes 15 and 16. Each of the vertical blade plates 7, 7... Is formed in an arc shape having a substantially square cross section at the substantially center in the width direction and bulging outward. Centrifugal force can be applied, and the resistance of circulating air can be greatly reduced. Furthermore, when this circulating air collides with the second arcuate surface 9, moisture such as rain water and snow contained in the circulating air can be captured.

  In the present invention, a plurality of slats 7 are arranged in the vertical direction. Since the slats 7 have a substantially cross-sectional shape in the width direction and are provided with two arcuate surfaces 8 and 9, The snow flows smoothly along each arcuate surface and can provide sufficient ventilation. Further, grooves are formed in the vertical direction by the intermediate groove member 10 and the lower edge groove member 11 on the back and end portions of these arc-shaped surfaces 8 and 9, and further, a rough surface is formed on the surface of the arc-shaped surface 9; These grooves and rough surfaces prevent intrusion of wind and rain and snow from the outside to the inside, and water droplets can be captured and collected to flow down.

  Specifically, the outside air freely passes through the gap 12, and most of rainwater and snow that naturally falls from above is received by the intermediate groove member 10. On the other hand, rainwater and snow blown together with the wind first collide with the bulging portion of the first arcuate surface 8 and are mostly received in the intermediate groove member 10 having the folded piece 13. When the wind direction of the rainwater that has passed over the intermediate groove member 10 with the wind is bent along the first arcuate surface 8 and the adjacent second arcuate surface 9, first, the second arcuate surface 9 is caused by centrifugal force. Then, the moisture is trapped and flows down, and then the remaining moisture that could not be trapped by the second arcuate surface 9 is received by the lower edge groove member 11 having the folded piece 14 and flows down. Rainwater intrusion into the indoors is reliably prevented.

  As shown in FIG. 6, in the waterproof and snowproof ventilation louver 1 according to the present invention, the lateral blade plate 3 provided in the vicinity of the intake port for outside air containing rainwater is provided inside the waterproof and snowproof ventilation louver 1. It is arranged in a substantially inverted square shape having an inclined surface 3a that is curved downwardly. Further, a plurality of horizontally long ventilation holes 6 are provided at regular intervals in the vertical direction. For this reason, the rainwater blown with the wind from the outside passes through the ventilation hole 6 toward the inner lower side along the inclined surface 3 a of the horizontal blade 3. For this reason, it is possible to prevent water from blowing up inside the waterproof and snowproof ventilation louver 1.

  Furthermore, rainwater or the like accumulated inside flows down, passes through the opening 18a of the bottom plate 18 provided at the bottom, flows along the drainage inclined surface 19 provided below the opening 18a, and from the drainage port 21. Drained outside. A skirt portion 20 is provided above the drainage inclined surface 19 and at the lower end of the horizontal blade plate 3 so as to extend forward, so that rainwater is not blown into the interior. As described above, the skirt portion 20 that covers the front surface of the lower end portion of the louver 1 can provide a reliable waterproof and snowproof performance against rainwater and snow rolling up from below.

  7 to 9, reference numeral 1 denotes a waterproof and snowproof ventilation louver, and an outer surface 4 in which a plurality of horizontal blade plates 3, 3... Are integrally connected to a rectangular frame 2 made of aluminum sash, And mounting portions 40 formed on the upper and lower ends and left and right ends of the frame body 2 are attached to a mounting tool 40a installed in the opening of the building. It is configured. For convenience, the same components as those in the first embodiment will be described with the same reference numerals.

  What should be noted in this embodiment is that a net body (net) 22 is interposed between the horizontal blade plates 3, 3... And the vertical blade plates 7, 7. There is. The mesh degree of the net 22 is about 60 mesh and snow is captured, but it is preferable to use a mesh size that allows smooth ventilation. Thus, more reliable snowproof performance can be obtained by the net body 22 covering the front surface of the louver 1.

It is a front view of the waterproof and snowproof type ventilation louver which concerns on this invention. FIG. 2 is a plan sectional view of FIG. 1. It is a longitudinal cross-sectional view of FIG. It is a principal part expansion perspective view of a slat. It is a principal part expanded plan sectional view of a slat. It is a principal part longitudinal cross-sectional view of the lower part of a louver. It is a front view which shows the other Example of the waterproof and snowproof type ventilation louver which concerns on this invention. FIG. 8 is a plan sectional view of FIG. 7. It is a longitudinal cross-sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Waterproofing and snow-proof type ventilation louver 2 Frame 3 Horizontal blade board 3a Inclined surface 4 Outer side surface 5 Inner side surface 6 Ventilation hole 7 Vertical blade plate 7a Refraction point 8 First arcuate surface 9 Second arcuate surface 10 Intermediate groove member 11 Lower edge groove member 12 Gap 13 Folded piece 14 Folded piece 15 Screw hole 16 Screw hole 17 Screw hole 18 Bottom plate 18a Opening portion 19 Drained inclined surface 20 Skirt portion 21 Drainage port 22 Net (net)
40 mounting part 40a mounting tool 50 screw

Claims (2)

  In the waterproof and snow-proof type ventilation louver provided in the opening of the building, arranged in parallel with a plurality of blades in a lattice shape, provided to be ventilated with a gap between these blades, and waterproofed by the blades, A waterproof and snowproof type ventilation louver characterized in that a skirt portion is provided to cover an inclined surface for drainage communicating with the front surface of the lower end of the louver and the bottom of the louver.   In the waterproof and snow-proof type ventilation louver provided in the opening of the building, arranged in parallel with a plurality of blades in a lattice shape, provided to be ventilated with a gap between these blades, and waterproofed by the blades, 2. The waterproof and snowproof type ventilation louver according to claim 1, wherein a net is provided on a front surface of the louver.

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