JP2007077608A - Louver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To require no labor in manufacturing and hardly cause whistling sound. <P>SOLUTION: This louver with a plurality of louver pieces 1 juxtaposed at spaces is provided with small groups 3 of louver with four or less louver pieces 1 juxtaposed, wherein a first space dimension P1 which is the mutual space dimension of the adjacent small groups 3 of louver is set wider than a second space dimension P2 which is the mutual space dimension of the louver pieces 1 in the small groups 3 of louver. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a louver that can be used, for example, as a blindfold for building exteriors, equipment, and the like. More specifically, the present invention relates to a louver in which a plurality of louver pieces are arranged in parallel at intervals.

  Conventionally, as this type of louver, as shown in FIG. 9, there is one in which a large number of strip-like louver pieces 1 are arranged in parallel at equal intervals (for example, see Patent Documents 1 to 4).

Japanese Unexamined Patent Publication No. 2004-84991 (FIGS. 1, 5, 10, and 11) JP-A-11-324520 JP-A-7-238649 JP 2001-173326 A

According to the above-described conventional louver, when wind hits the louver surface, a severe wind noise may be generated depending on the direction, strength, etc., and there is a problem of noise generation.
As shown in FIG. 9, this is caused by the fact that wind hits the sharp edge of the louver piece 1 to generate vortex between adjacent louver pieces 1 and the vibration is amplified by resonance. There are many cases. And, conventionally, attempts have been made to suppress the generation of wind noise by devising the shape of the louver piece, but in any case, high production accuracy is required, and it takes time and effort was there.

  Therefore, an object of the present invention is to provide a louver that solves the above-described problems, does not require time and effort, and hardly generates wind noise.

  According to a first characteristic configuration of the present invention, in a louver in which a plurality of louver pieces are arranged in parallel at intervals, a louver small group in which four or less louver pieces are arranged in parallel is provided, and adjacent louver small groups are arranged. The first distance dimension, which is the distance dimension, is set to be wider than the second distance dimension, which is the distance dimension between the louver pieces in the louver small group.

According to the first characteristic configuration of the present invention, the distance between the louver pieces is set wide for every four louver pieces at the maximum, and the space between the louver pieces (hereinafter simply referred to as “louver space”). However, since the space capacity of one of the four adjacent locations is larger than the other three locations at the maximum, even if air vibration occurs in one of the louver spaces, the adjacent louver spaces are synchronized. It becomes difficult. As a result, unlike the conventional case, it is difficult to occur that a large wind noise is generated by amplifying the air vibrations that resonate over each louver space.
In addition, since a simple configuration that only sets the distance between the louver pieces as described above is adopted, it can be easily manufactured without taking any special effort in manufacturing. It becomes.

  According to a second characteristic configuration of the present invention, the first interval dimension is set to an integral multiple of the second interval dimension.

According to the second characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effects of the first characteristic configuration of the present invention, parts of a conventional louver in which louver pieces are provided at equal intervals. It can be formed by simply removing a part of the louver pieces while using the same as it is, and can be formed extremely easily.
Further, since each louver piece is attached at a pitch in which the second interval dimension is the minimum unit, the appearance of the louver is orderly, and it is possible to suppress a decrease in design.

  According to a third characteristic configuration of the present invention, the louver pieces are arranged in an inclined posture with respect to the parallel arrangement direction of the louver pieces.

According to the third characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effects according to the first or second characteristic configuration of the present invention, the line of sight from the direction intersecting the inclination direction of the louver piece, The wind can be blocked by the louver piece.
Accordingly, the line of sight can be blocked, the back side of the louver can be blinded, and the design can be improved. Furthermore, when the louver is installed in a place where the normal wind direction is determined, setting the wind direction to a direction that is blocked by the louver piece makes it difficult for the louver piece to cut the wind and generates wind noise. Can be suppressed.

  According to a fourth characteristic configuration of the present invention, the second interval dimension is set to 100 mm.

  According to the 4th characteristic structure of this invention, in addition to being able to achieve the above-mentioned effect by the 1st-3rd characteristic structure of this invention, in an inclined louver, it is 2nd space | interval dimension. It has been confirmed that wind noise is less likely to occur by setting the size to 100 mm.

  According to a fifth characteristic configuration of the present invention, the louver pieces are arranged in an orthogonal posture or a substantially orthogonal posture with respect to the parallel arrangement direction of the louver pieces.

  According to the fifth characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effects according to the first or second characteristic configuration of the present invention, the louver piece extends along the line of sight from the front. The louver piece is blindfolded from a viewpoint deviating from the front, while the view is good and the view is good. Therefore, it can play the role of, for example, a bag that blocks sunlight without blocking the view.

  According to a sixth characteristic configuration of the present invention, the second interval dimension is set to 50 mm.

  According to the sixth characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effect according to any one of the first, second and fifth characteristic configurations of the present invention, in the above-mentioned orthogonal posture louver. It has been confirmed that wind noise is less likely to occur by setting the second spacing dimension to 50 mm.

  According to a seventh characteristic configuration of the present invention, a blindfold member that blocks a line of sight from the louver surface side is provided at least in a portion corresponding to the interval portion between the adjacent louver small groups in the louver back surface side space. It is in.

According to the seventh characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effect according to any one of the first to sixth characteristic configurations of the present invention, a louver subgroup wider than the interval between the louver pieces. The interval between the two appears to be clogged by arranging the blindfold member, so that it is possible to alleviate the deterioration of the design property and to exhibit the original blindfold effect of the louver with little variation.
In addition, the blindfold member is not limited to being provided only in the portion corresponding to the interval portion between the adjacent louver subgroups in the louver backside space, for example, over a wide range including other portions of the louver backside space. In that case, the blindfold member provides resistance to the air flow between each louver piece, and can suppress the occurrence of turbulent flow that is the source of noise, further improving the noise generation prevention effect Can be made.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.

[First Embodiment]
FIG. 1 and FIG. 2 show an example of the louver of the present invention, and the louver R1 is configured by arranging a plurality of louver pieces 1 in a vertical arrangement and spaced side by side.
The louver piece 1 is made of, for example, a metal plate such as aluminum, and is fixed to the base frame 2 by means such as screws.
In the embodiment, the louver piece 1 has a thickness of 5 mm, a width of 50 mm, and a length of 1600 mm. As shown in FIG. 2, the louver piece 1 is 45 degrees with respect to the parallel arrangement direction of the louver pieces 1. It is installed in a posture that tilts at an angle of.
The louver pieces 1 are arranged side by side with a reference pitch of 100 mm.
More specifically, each of the louver subgroups 3 composed of four louver pieces 1 is arranged in parallel with an interval of 200 mm.
Here, the interval dimension between the louver small groups 3 is referred to as a first interval dimension P1, and P1 = 200 mm.
In addition, the distance between the louver pieces 1 in each louver small group 3 is referred to as a second distance dimension P2, and P2 = 100 mm.
That is, the first interval dimension P1 is set to twice the second interval dimension P2.

  According to the louver of the present embodiment, it is difficult for wind noise to occur when the louver R1 hits the wind.

FIG. 3 shows the experimental results that confirm the operational effects of the louver R1 of this embodiment.
However, as shown in the figure, the experiment was carried out in a wind direction inclined by 130 degrees with respect to the direction in which the louver pieces 1 were juxtaposed, and the wind speed was 10 m / s, 12 m / s, 14 m / s, and 16 m / s. It implemented about four types. Then, as the louver small group 3, the presence or absence of wind noise was observed for each of the louver pieces 1 that were changed from 2 to 9 pieces one by one. In the figure, “◯” indicates that no wind noise was generated, and “X” indicates that wind noise was generated.
As can be seen from this experimental result, the wind noise was not observed for all wind speeds only when the louver subgroup 3 was composed of four or less louver pieces 1.

[Second Embodiment]
FIG. 4 shows a second example of the louver according to the present invention, and the louver R2 is configured by arranging a plurality of louver pieces 1 in a vertical arrangement and spaced side by side. And about the structure which overlaps with previous embodiment, description is omitted and a different structure is mainly demonstrated.
In the embodiment, as shown in FIG. 4, the louver piece 1 is arranged in an orthogonal posture or a substantially orthogonal posture with respect to the parallel arrangement direction of the louver pieces 1.
The louver pieces 1 are arranged side by side with a reference pitch of 50 mm.
More specifically, each of the louver subgroups 3 constituted by four louver pieces 1 is arranged in parallel with an interval of 100 mm.
Here, the interval dimension between the louver small groups 3 is referred to as a first interval dimension P1, and is set to P1 = 100 mm.
In addition, the distance between the louver pieces 1 in each louver small group 3 is referred to as a second distance dimension P2, and P2 = 50 mm.
That is, the first interval dimension P1 is set to twice the second interval dimension P2.

  According to the louver of the present embodiment, it is difficult for wind noise to occur when the louver R2 is hit by wind.

FIG. 5 shows the experimental results that confirm the operational effects of the louver R2 of this embodiment.
However, as shown in the figure, the experiment was conducted in a wind direction inclined by 160 degrees with respect to the direction in which the louver pieces 1 were juxtaposed, and the wind speed was conducted at 14 m / s. Then, as the louver small group 3, the presence or absence of wind noise was observed for each of the louver pieces 1 that were changed from 2 to 7 pieces one by one. In the figure, “◯” indicates that no wind noise was generated, and “X” indicates that wind noise was generated.
As can be seen from the experimental results, the wind noise was not observed only when the louver small group 3 was composed of four or less louver pieces 1.

[Another embodiment]
Other embodiments will be described below.

<1> The louver piece 1 is not limited to the shape, size, and material described in the previous embodiment, and can be appropriately changed. Further, the installation posture of the louver piece 1 is not limited to the vertical arrangement, and may be a horizontal arrangement or an oblique arrangement.
<2> The number of louver pieces constituting the louver small group is not limited to four, and may be two or three. Further, the distance dimension is not limited to the value described in the previous embodiment for both the first distance dimension P1 and the second distance dimension P2. In short, the first interval dimension P1 only needs to be larger than the second interval dimension P2.
<3> When the louver piece is provided in a state of being inclined with respect to the parallel arrangement direction, the inclination angle is not limited to 45 degrees or 90 degrees described in the previous embodiment, and can be appropriately changed. .
<4> The attachment of the louver piece to the base frame 2 is not limited to the type in which the louver piece is fixed with screws as described in the previous embodiment. On the other hand, it is possible to configure a louver arrangement that hardly generates wind noise.
<5> As shown in FIGS. 6 to 8, a blindfold member 4 that blocks the line of sight from the louver surface side may be provided in the back side space of the louver. Even if the interval is not constant, the blinding effect can be improved.
In the embodiment of FIG. 6, a blindfold member 4 formed of louver pieces is provided in a portion corresponding to the interval portion between the louver small groups 3 in the louver back side space. Since the blindfold member 4 is configured in the same shape as the louver piece 1 used in other parts, it is difficult to stand out, it looks as if the louver pieces 1 are provided at equal intervals, and the design has little discomfort Can be secured.
In the embodiment of FIG. 7, the blindfold member 4 also serves as the base frame 2. Therefore, it is possible to achieve both the effect of suppressing wind noise and the effect of maintaining good design without using extra parts.
In the embodiment of FIG. 8, the blindfold member 4 made of punching metal is provided over a wide range of the louver back side space. According to this embodiment, the blinding effect by the blindfold member 4 is improved in a wide range of louvers, and the ventilation resistance in the air passages connected to the front and back of the louver in the space between the louver pieces is increased. The turbulent flow that tends to cause the occurrence of wind noise is less likely to occur, and the effect of preventing wind noise is further improved.

  In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

The perspective view which shows the louver of 1st embodiment. The top view which shows the louver of 1st embodiment Explanatory drawing which shows the experimental result with respect to the louver of 1st embodiment. The top view which shows the louver of 2nd embodiment Explanatory drawing which shows the experimental result with respect to the louver of 2nd embodiment. The top view which shows the louver of another embodiment The top view which shows the louver of another embodiment The top view which shows the louver of another embodiment Plan view showing a conventional louver

Explanation of symbols

1 Louver piece 3 Louver small group 4 Blindfold member P1 First spacing dimension P2 Second spacing dimension

Claims (7)

A louver in which a plurality of louver pieces are arranged side by side at intervals,
A louver small group in which four or less louver pieces are arranged side by side is provided, and a first distance dimension that is a distance dimension between adjacent louver small groups is a distance dimension between louver pieces in the louver small group. A louver that is wider than the two-interval dimension.   The louver according to claim 1, wherein the first interval dimension is set to an integral multiple of the second interval dimension.   The louver according to claim 1, wherein the louver pieces are arranged in an inclined posture with respect to a direction in which the louver pieces are arranged side by side.   The louver according to claim 3, wherein the second distance dimension is set to 100 mm.   The louver according to claim 1 or 2, wherein the louver pieces are arranged in an orthogonal posture or a substantially orthogonal posture with respect to a direction in which the louver pieces are arranged side by side.   The louver according to claim 5, wherein the second interval dimension is set to 50 mm.   A blindfold member that blocks a line of sight from the louver surface side is provided at least in a portion corresponding to an interval portion between the adjacent louver small groups in the louver back surface side space. The described louver.

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