JP6912182B2 - Blindfold panel - Google Patents

Description

The present invention relates to a blind panel, and more particularly to a blind panel capable of making the force acting on the straightening vane more uniform.

The applicant has proposed a blind panel that is provided at the lower part of the handrail of the balcony of an apartment house or the like or at the boundary between the balcony and the dwelling unit to partition the inside and outside of the balcony (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2016-176319

The blind panel disclosed in Patent Document 1 is a blind panel having a plurality of ventilation passages formed between a plurality of straightening vanes extending from one of the depth directions to the other when the passing direction of the wind is the depth direction. For example, a plurality of straightening vanes formed in a chevron shape are arranged at regular intervals in a direction along a plane orthogonal to the depth direction, and the tops of one straightening vanes adjacent to each other are the other. The straightening vane is set so as to be located on a virtual line connecting both ends in the depth direction of the straightening vane, or on the top side of the other straightening vane from the virtual line, and is formed so as to penetrate the straightening vane. A communication section for communicating adjacent ventilation paths with each other is provided near the top of each straightening vane, so that when the ventilation path is viewed from one or the other in the depth direction, the ventilation path is passed through the communication section. The outside of the straightening vane is not visible, and a pressure difference is less likely to occur on the front and back surfaces of a certain range centered on the top of each straightening vane. The pull-out force) can be reduced, and damage to the blind panel can be suppressed.

However, in the blindfold panel disclosed in Patent Document 1, since the communication portion is provided only near the top of each straightening vane, a pressure difference occurs on the front and back surfaces of the portion other than near the top of each straightening vane. It was found that the pulling force acts on each straightening vane.

In order to solve the above-mentioned inherent problem, the present invention can make the force acting on the straightening vane more uniform by making it difficult for a pressure difference to occur on the front and back surfaces of the entire range of each straightening vane, and is damaged in strong winds. The purpose is to provide a blindfold panel that can prevent.

In order to solve the above problems, the blind panel of the present invention has a plurality of ventilation paths formed between a plurality of straightening vanes extending from one of the depth directions to the other when the passing direction of the wind is the depth direction. The plurality of straightening vanes are blindfolded panels, and the plurality of straightening vanes are arranged at predetermined intervals in a direction along a plane orthogonal to the depth direction, and each straightening vane is arranged from one of the depth directions to the depth direction. A first rectifying unit having a predetermined angle on the other side and extending upward or downward, and a second rectifying unit having a predetermined angle in one of the depth directions from the other in the depth direction and extending upward or downward. A top portion forming a boundary between the first rectifying unit and the second rectifying unit, and a communicating portion formed so as to penetrate the rectifying plate and communicating adjacent ventilation paths through the rectifying plate. The top of one straightening vane adjacent to each other is located on a virtual line connecting one end and the other end of the other straightening vane in the depth direction, or the top of the other straightening vane is closer to the top of the other straightening vane. The communication portion is provided at the end side, the top side, and the intermediate portion between the end side and the top side of each straightening vane in the depth direction. Is formed by elongated holes that continuously extend from one end side to the other end side in the width direction when the ridge line direction of the top of the straightening vane is the width direction of the straightening vane, and the depth of the straightening vane. outside visual of the air passage through the communicating portion when the one end portion side in the direction toward the other side in the depth direction of the current plate along the plate surface of the rectifying plate peek the air passage The condition that the line of sight when looking into the ventilation path intersects with the inner surface of the upper rectifying plate among the upper and lower rectifying plates constituting the ventilation path, and the line of sight when looking into the ventilation path. And the wall surrounding the communication part of the upper rectifying plate among the upper and lower rectifying plates constituting the ventilation path intersect with each other, and the rectifying on the upper and lower sides constituting the ventilation path when looking into the ventilation path. The condition that the line of sight passing through the communication portion of the upper straightening vane of the plates intersects with the inner surface of the straightening vane located further above the upper straightening vane 1. The condition that the line of sight passing through the communication part of the upper rectifying plate among the upper and lower rectifying plates constituting the path intersects with the wall surrounding the communication part of the rectifying plate located further above the upper rectifying plate. One or more of 2 is satisfied, or the line of sight when looking into the ventilation path intersects with the inner surface of the lower rectifying plate among the upper and lower rectifying plates constituting the ventilation path. The condition that the line of sight when looking into the ventilation path intersects with the wall surrounding the communication portion of the lower rectifying plate among the upper and lower rectifying plates constituting the ventilation path, the condition that the ventilation path is viewed. In this case, the line of sight that has passed through the communication portion of the lower straightening vane of the upper and lower straightening vanes constituting the ventilation path and the inner surface of the straightening vane located further below the lower straightening vane are Condition 1. When looking into the ventilation path, the line of sight passing through the communication portion of the lower rectifying plate among the upper and lower rectifying plates constituting the ventilation path and further below the lower rectifying plate. Since it is configured to satisfy one or more of the condition 2 that the wall surrounding the communication portion of the straightening vane located on the side intersects, it is unlikely that a pressure difference will occur on the front and back surfaces of the entire range of each straightening vane. The force acting on the straightening vane can be made more uniform to prevent damage in strong winds, and when the ventilation path is viewed from the end side of the straightening vane in the depth direction, the ventilation is passed through the communication part. The outside of the road will be a blindfold panel that will not be visible.
Further, the condition 2 is the line of sight when looking into the ventilation path, the inner surface of the straightening vane located further above the upper straightening vane, or the straightening vane located further below the lower straightening vane. The length from the intersection with the virtual surface inside the opening of the communication portion located on the same surface as the inner surface of the communication portion to the edge of the opening located on the end side of the communication portion in the depth direction is defined as X _n, and the virtual surface is defined as X n. When the angle formed by the surface and the line of sight passing through the virtual surface is θx and the thickness dimension of the straightening vane is t, the condition is that _{X n} tan θ _{x ≦ t is satisfied.} When the ventilation path is viewed from the end side in the depth direction of the straightening vane, the outside of the ventilation path is not surely visible through the communication portion, which is a blind panel .
Also, the a first rectifying portion and second rectifying portion, since the line passing through the top and perpendicular to the imaginary line is formed in line symmetry to the objective axis, front and back surfaces of the entire range of each rectifying plate The force acting on the straightening vane can be made more uniform so that a pressure difference is less likely to occur, and when the ventilation path is viewed from the end side in the depth direction of the straightening vane, the ventilation is passed through the communication portion. A blind panel can be obtained in which the outside of the road is not visible.
_{Further, the inclination angle θ 1} of the first rectifying unit and the second rectifying unit with respect to the virtual line connecting the lower end of the first rectifying unit and the lower end of the second rectifying unit is set in the range of 5 ° to 40 °. It is characterized by that.
The outline of the above invention does not list all the necessary features of the present invention, and subcombinations of these feature groups can also be inventions.

It is the whole front view which shows the partition plate. It is a perspective view and an end view of a blindfold panel. It is a perspective view of a blindfold panel. It is a perspective view of a blindfold panel. An explanatory diagram for explaining the conditions under which the blindfold function of the blindfold panel is satisfied by a mathematical formula. An explanatory diagram for explaining the conditions under which the blindfold function of the blindfold panel is satisfied by a mathematical formula. The figure which shows the model which calculated the wind direction wind coefficient of a blindfold panel. The table which shows the result of having calculated the wind direction wind force coefficient of the blindfold panel of CASE 1-6. The figure which shows the rectifying plate of the blindfold panel of CASE 1-3. The figure which shows the rectifying plate of the blindfold panel of CASE 4-6.

Hereinafter, the present invention will be described in detail through embodiments of the invention, but the following embodiments do not limit the invention according to the claims, and all combinations of features described in the embodiments are the inventions. It is not always essential for the solution, but includes a configuration that is selectively adopted.

FIG. 1 is a front view showing an installed state of the partition plate 10. As shown in the figure, the partition plate 10 is provided at a boundary portion between dwelling units on a balcony or balcony of a building 1 such as an apartment or a building. The partition plate 10 is installed between the dwelling unit side wall surface 3 of the building 1 and the outdoor side wall surface (handrail) 5. The partition plate 10 is installed on the side wall surface 3 of the dwelling unit and the floor slab 7 via a fixing means 11 or the like, and partitions the veranda or balcony of the dwelling unit. The partition plate 10 has, for example, a vertically long rectangular shape in front view, and includes a frame body 20 and a blind panel 30 housed in the frame body 20 as a main configuration. In the following description, the "width direction" indicates the direction across the dwelling unit side and the outdoor side when the partition plate 10 is viewed from the front, and the "depth direction" is a direction other than the vertical direction orthogonal to the above width direction. It is a direction and is synonymous with "thickness direction". The "vertical direction" is a direction orthogonal to the width direction and the depth direction. Further, in a state where the blind panel 30 is housed in the frame 20, the wind passes through the blind panel 30 in the depth direction.

The frame body 20 is assembled in a rectangular shape in front view by, for example, a frame made of metal, hard resin, or the like. The frame 20 extends vertically and is erected at both ends of a pair of vertical frames 21A; 21B extending in the vertical direction and parallel to the side wall surface 3 of the dwelling unit and a pair of vertical frames 21A; 21B extending in the width direction. A pair of horizontal frames 23A; 23B and an intermediate frame 25 extending in the same direction as the horizontal frames 23A; 23B in the intermediate portion of the pair of vertical frames 21A; 21B are provided. The vertical frames 21A; 21B are, for example, hollow bodies having a substantially U-shaped cross section, and are provided so that the U-shaped openings face each other in the width direction. Similarly, the horizontal frames 23A; 23B are hollow bodies having a substantially U-shaped vertical cross section, and are provided so that the U-shaped openings face each other in the vertical direction. The intermediate frame 25 is formed in a substantially H-shape in vertical cross section, and is provided so that the upper and lower openings face the openings of the horizontal frames 23A; 23B. By assembling each of these frames by a fixing means (not shown), the frame body 20 is provided with upper and lower openings 27 capable of accommodating the blind panel 30 described later. The number of openings 27 is not limited to this.

Hereinafter, the structure of the blind panel 30 will be described. FIG. 2A is an overall perspective view of the blindfold panel 30 housed in the opening 27, and FIG. 2B is a cross-sectional view of a main part of the blindfold panel 30. In the following description, the case where the blind panel 30 is housed in the upper opening 27 will be taken as an example. The blind panel 30 is integrally manufactured by using a 3D printer, for example, using calcium silicate, a hard resin, a soft metal, or the like as a material.

The blind panel 30 extends between a pair of support portions 31A; 31B facing in the width direction and the support portions 31A; 31B, and a plurality of straightening vanes arranged along the vertical direction of the support portions 31A; 31B. 40 and. As shown in FIG. 1, the support portion 31A; 31B is a portion corresponding to the vertical frame 21A; 21B forming the upper opening 27, and is inside the opening of the vertical frame 21A; 21B formed in a U-shaped cross section. It is housed in the state of being inserted in.

As shown in FIG. 2B, the plurality of straightening vanes 40 are arranged at regular intervals along the vertical direction of the support portions 31A; 31B orthogonal to the depth direction, and have the constant spacing. A ventilation path R is formed between the straightening vanes 40; 40 adjacent to each other. The depth dimension (depth dimension L) of the straightening vane 40 is set to, for example, about 5 mm to 20 mm, and the thickness dimension (wall thickness) t (see FIG. 5) of the straightening vane 40 is for fires, earthquakes, etc. It is set to, for example, about 0.5 mm to 5.0 mm, which can be easily destroyed by human power in an emergency. In this specification, the arrangement direction of the plurality of rectifying plates 40 is described as the vertical direction orthogonal to the depth direction, but the arrangement direction is not limited to this, for example, the arrangement of the plurality of rectifying plates 40. The direction may correspond to the width direction, or may be an oblique direction.

As shown in FIG. 2B, each straightening vane 40 is inclined upward and extends from one side in the depth direction, which is the passing direction of the wind W through the ventilation path R, toward the other side in the depth direction. The first rectifying unit 41, the second rectifying unit 43 extending upward from the other side in the depth direction toward one side in the depth direction, and the extension lines of the first rectifying unit 41 and the second rectifying unit 43. The top P, which forms a boundary between the first rectifying unit and the second rectifying unit, and the ventilation passages R; R, which are formed so as to penetrate the rectifying plate 40 and are adjacent to each other through the rectifying plate 40, communicate with each other. It is provided with a communication unit 50 for making the communication.

The first rectifying unit 41 and the second rectifying unit 43 are formed in line symmetry with the line passing through the top P orthogonal to the virtual line L2 described later as the target axis L1.
_{The inclination angle θ 1} of the first rectifying unit 41 and the second rectifying unit 43 with respect to the virtual line L2 connecting the lower end 41A of the first rectifying unit 41 and the lower end 41A of the second rectifying unit 43 is, for example, in the range of 5 ° to 40 °. Can be selected arbitrarily with.

When a plurality of straightening vanes 40 having the above configuration are arranged along the vertical direction of the support portions 31A; 31B, the communicating portions 50 of the straightening vanes 40 that are vertically adjacent to each other, the first straightening vanes 41 to each other, and the second straightening vanes are rectified. The portions 43 are parallel to each other, and a ventilation path R having a constant flow path interval (flow path diameter) is formed between the straightening vanes 40; 40 adjacent to each other in the vertical direction. Then, as shown in FIG. 2B, for example, the wind W blown from one side in the depth direction toward the other side passes through the plurality of ventilation passages R formed by the plurality of straightening vanes 40; 40 and the other. It will blow through to the side.

Next, the spacing between the vertically adjacent straightening vanes 40; 40 will be described in detail. As shown in FIG. 2B, the distance between the vertically adjacent straightening vanes 40; 40 is such that the position of the top P of the straightening vane 40 located at least below is the position of the first straightening vane of the straightening vane 40 located above. The lower end 41A as an extension end of the 41 and the second rectifying unit 43; is set so as to coincide with the position of the virtual line L2 connecting the 41A or to be located above the position of the virtual line L2. Here, the top P is a point located within the depth dimension L and is located at the uppermost position on the straightening vane 40 of 1.
That is, the top P of one of the straightening vanes 40 adjacent to each other is on the virtual line L2 connecting one end and the other end in the depth direction of the other straightening vane 40, or on the other straightening vane 40 than the virtual line L2. It is set to be located on the top P side.

As shown in FIG. 2B, the communication portion 50 is provided at the end side (lower end 41A side), the top P side, and between the end side and the top P side of each straightening vane 40 in the depth direction. It is provided in the middle part.
That is, in the straightening vane 40, for example, as shown in FIG. 3, the communication portion 50 formed by the elongated holes extending in the width direction is formed on the end side, the top P side, and the top portion P side of the straightening vane 40 in the depth direction. The configuration is provided so as to be located at each of the intermediate portions between the end side and the top P side.
When the passing direction of the wind W is the depth direction of the straightening vane 40, the ridgeline direction of the top P of the straightening vane 40 is defined as the width direction of the straightening vane 40. Further, in FIGS. 1 and 2 (a), the communication portion 50 is not shown.
In other words, in the straightening vane 40, the communication portion 50 formed by the elongated holes extending in the width direction is formed on the end side, the top P side, and the end side and the top P side of the straightening plate 40 in the depth direction. It is a configuration in which one or more are provided in each of the intermediate portions between the spaces.
Specifically, in the straightening vane 40, the communication portion 50 extends from one side in the depth direction to the top P in the first straightening vane 41 of each straightening vane 40, and in the second straightening vane 43 of each straightening vane 40 in the depth direction. From the other side to the top P, a large number of them are provided at predetermined intervals, for example, at equal intervals.
For example, when the depth dimension L of the straightening vane 40 is set to 10 mm, the depth dimension of the communication portion 50 can be arbitrarily selected in the range of 1 mm to 4 mm, and is preferably set in the range of 2 mm to 3 mm.

As shown in FIG. 3, the communication portion 50 may be an elongated hole that continuously extends from one end side to the other end side in the width direction of the straightening vane 40, but as shown in FIG. 4, the width is wide. It may be formed by elongated holes or holes provided intermittently along the direction.
For example, as shown in FIG. 4A, the communication portion 50 may be formed by elongated holes intermittently provided along the width direction of the straightening vane 40, or may be formed by elongated holes in FIG. 4B. ), It may be formed by circular holes intermittently provided along the width direction and the depth direction of the straightening vane 40.

When a wind blows from one side to the other in the depth direction over the entire area of the blind panel, the wind passes through a plurality of ventilation passages formed between the straightening vanes adjacent to each other, but each sandwiching the straightening vane. When there is a difference in pressure in the ventilation passages, a pressure difference is generated on the front and back surfaces of the straightening vanes sandwiched between the ventilation passages, and a pulling force acts on the straightening vanes.
In other words, when the wind passes through each ventilation path, the rectifying plate sandwiched between the ventilation passages has a force in the opposite direction that approaches the plate surface orthogonal to the plate surface of the rectifying plate, or the rectifying plate of the rectifying plate. A force acting in the opposite direction perpendicular to the plate surface and away from the plate surface acts, but if there is no difference in pressure in each ventilation path sandwiching the rectifying plate, the force acting in the opposite direction acting on the rectifying plate is the same. Since the size is large, the pulling force does not act on the straightening vane, but if there is a difference in the pressure in each ventilation path that sandwiches the straightening vane, the magnitude of the force acting on the straightening vane in the opposite direction will be increased. Due to the difference, a pulling force acts on the straightening vane.
In the case of a blind panel composed of a straightening vane that does not have a communication portion 50, there is a tendency for a difference in pressure in each ventilation path that sandwiches the straightening vane. Differences are likely to occur, and pulling force is likely to act on the straightening vane.
On the other hand, in the case of the blind panel 30 composed of the straightening vane 40 of the first embodiment, the end side (lower end 41A side), the top P side, and the end side and the top P side of the straightening vane 40 in the depth direction. By providing the communication portions 50 in the intermediate portions between the two, the pressure difference in each ventilation passage R; R sandwiching the rectifying plate 40 is relaxed, and the rectification sandwiched between the ventilation passages R; R is relaxed. It becomes difficult for a pressure difference to occur on the front and back surfaces of the plate 40, and it becomes difficult for a pulling force to act on the rectifying plate 40.

Therefore, when the blind panel 30 is viewed as a whole, two air passages R are formed by the three straightening vanes 40 adjacent to each other, in other words, one is formed between the two air passages R adjacent to each other. Since the straightening vane 40 is present, the force acting on each straightening vane 40 of the blindfold panel 30 except for the straightening vane 40 located at the uppermost position and the lowermost position is substantially zero.
As a result, even if the wind W passes through, it becomes difficult for the pulling force to act on the entire range of each straightening vane 40, and it becomes possible to prevent an excessive wind force from acting on the blindfold panel 30 due to a typhoon or the like, and in a strong wind. Even so, the blindfold panel 30 can be prevented from being damaged.

As in the embodiment, in order to make the force acting on the straightening vane 40 more uniform, the communicating portions 50 are connected to the end side (lower end 41A side), the top P side, and the end of each straightening vane 40 in the depth direction. In the case where the intermediate portion between the portion side and the top P side is provided, in order to satisfy the blindfold function of the blindfold panel 30, the ventilation path R is provided from the end side in the depth direction of the straightening vane 40. Satisfy condition 1 that the line of sight (the direction in which the eyes are looking) intersects with the inner surface of the straightening vane 40, or the air passage R is viewed from the end side of the straightening vane 40 in the depth direction. It is necessary to satisfy the condition 2 that the line of sight of the case intersects with the wall surrounding the communication portion 50 of the straightening vane 40.
In other words, the condition 2 is on the same plane as the line of sight a when looking into the ventilation path R from the end side in the depth direction of the straightening vane 40 and the inner surface b of the straightening vane 40A (40), as shown in FIG. _{Let X n be} the length from the intersection B with the virtual surface c inside the opening of the communicating portion 50 located to the opening edge d located on the end side in the depth direction of the communicating portion 50, and let X n be the virtual surface c and the virtual surface c. When the angle formed by the line of sight a passing through the surface c is θ _x = (θ ₁ + θ ₂ ) and the thickness dimension of the straightening vane 40 is t, the condition is that _{X n} tan θ _{x ≦ t is satisfied.}

_{How to obtain Xn} will be described with reference to FIGS. 5; 6. In addition, in FIG. 5; FIG. 6, the meaning of each reference numeral is as follows.
L = the depth direction of the length l _{'n =} rectifying plate between the thickness in the depth direction of length t = current plate l _{n =} communicating portion adjacent along the depth direction of the current plate and the communicating portion of the current plate Length of communication part along the line θ ₁ = Tilt angle of the straightening vane with respect to the horizontal plane θ ₂ = Tilt angle H of the line of sight a looking into the ventilation path from the viewpoint A with respect to the horizontal plane = Vertical distance from the viewpoint A to the straightening vane to be evaluated

In the end view orthogonal to the width direction of each straightening vane shown in FIG. 5, for example, a viewpoint A looking into the ventilation path R is set on a straight line e connecting the upper ends of one end portion in the depth direction of each straightening vane 40. ..
Then, the length of the line segment AC connecting the lower end of the other end opposite to the viewpoint A and the viewpoint A in the depth direction of the rectifying plate 40A to be evaluated for obtaining _{X n is calculated by Equation 1.} Strictly speaking, L is the horizontal distance from the straight line e connecting the upper ends of one end of each straightening vane 40 in the depth direction to the straight line connecting the lower ends of the other end of each straightening vane 40 in the depth direction. Is.

Next, the intersection point B between the line of sight a from the viewpoint A and the virtual surface c inside the opening of the communication portion 50 located on the same surface as the inner surface b of the rectifying plate 40A (40) to be evaluated is obtained, and the intersection point with the viewpoint A. _{The angle θ 3} formed by the line segment AB and the line segment AC connecting B is obtained by Equation 2.

_{Next, the angle θ 4} formed by the line segment AC and the line segment CB is obtained by the mathematical formula 3.

Next, the length of the line segment BC is calculated by Equation 4.

Then, the length X _n is calculated by the mathematical formula 5.

In order to prevent the outside of the ventilation path R from being seen through the communication portion 50 when the ventilation path R is viewed from the end side of the straightening vane 40 in the depth direction, the X _n is mathematical expression 6 or 7 The condition of Equation 8 may be satisfied.

That is, when the condition of the condition of the equation 6 is satisfied, it means that the line of sight a when looking into the ventilation path R from the viewpoint A and the inner surface b of the straightening vane 40A to be evaluated intersect. The outside of the ventilation passage R is not visible through the air passage R.
Further, when the conditions of Equation 7; Equation 8 are satisfied, the line of sight a when looking into the ventilation path R from the viewpoint A and the wall surrounding the communication portion 50 formed in the rectifying plate 40A to be evaluated intersect. Therefore, in this case as well, the outside of the ventilation passage R is not visible through the communication portion 50.

That is, under the condition that the outside of the ventilation path R is not visible through the communication portion 50 when the ventilation path R is viewed from the end side in the depth direction of the straightening vane 40, X _n satisfies the condition of the following formula 9. The case.

Note that FIG. 6A illustrates a case where the outside of the ventilation passage R is not visible because the formula 7 is satisfied, and FIG. 6B is a case where the outside of the ventilation passage R is visually observed without satisfying the formula 7. Is illustrated.

Therefore, since the blind panel 30 of the embodiment is configured to satisfy the condition of the equation 9, it acts on the rectifying plate 40 so that a pressure difference is unlikely to occur on the front and back surfaces of the entire range of each rectifying plate 40. It is configured so that the force to be applied can be made more uniform, and when the ventilation path R is viewed from the end side in the depth direction of the straightening vane 40, the outside of the ventilation path R is not surely seen through the communication portion 50. It becomes a blindfold panel.

Next, in order to confirm the performance of the blind panel 30 using the straightening vane 40 of the first embodiment, in the blindfold panel having the configuration shown in FIG. 7, the blindfolding using the straightening vanes of CASE1 to CASE6 shown in FIGS. 9 and 10. _{A panel was prepared, and the wind direction wind power coefficient C f} acting on each blind panel using the straightening vanes of CASE1 to CASE6 was calculated by the following mathematical formula 10.

The meanings of the respective symbols in FIGS. 7 and 10 are as follows.
Surface wind pressure (N / m ² ) acting on P _n = point _n
P _'n = back surface of the wind pressure acting on the point _n (N ^{/ m} 2)
a _n = burden length at _{point n (m)}
θ = tilt angle of the straightening vane with respect to the horizontal plane q _H = velocity pressure acting on the top of the blind panel (N / m ² )
H = Height of blindfold panel (m)

The analysis conditions are as follows.
Discretization algorithm: Finite volume method Calculation algorithm: SIMPLEC method Spatial difference: Advection term of u, v, wk, ε ・ ・ ・ Third-order precision (QUICK) (QUICK)
Others: First-order accuracy (upwind difference)
Turbulence model: MPk-ε model Inflow wind speed: 10 m / s

CASE1 to CASE3 shown in FIG. 9 are blind panels using a rectifying plate having a sharp top of the rectifying plate, and CASE4 to CASE6 shown in FIG. 10 are rectifying panels having a curved top of the rectifying plate. It is a blind panel using a plate, and CASE1; CASE4 shown in FIG. 9A; FIG. 10A is a blinding panel using a straightening vane having a communication portion 50 only on the top side of the straightening vane, FIG. 9; (B); CASE2; CASE5 shown in FIG. 10B is a blind panel using a straightening vane having communication portions 50 only on the top side and the end side of the straightening vane, FIG. 9 (c); FIG. The CASE3 and CASE6 shown in (c) are the rectifiers of the first embodiment in which the communication portion 50 is provided at the end side and the top side of the straightening vane in the depth direction and the intermediate portion between the end side and the top side. It is a blindfold panel using a board. The curved shape of the top of the straightening vane is only 1/10 of the length dimension of the first straightening vane and the second straightening vane on both sides in the depth direction of the straightening vane from the top assumed to be the acute angle of the straightening vane. It was formed by an arc formed by connecting each distant point.
The height H of the blindfold panel was 306.6 mm for CASE1 to CASE3 shown in FIG. 9 and 289.8 mm for CASE4 to CASE6 shown in FIG.

FIG. 8 shows _{the wind direction wind force coefficient C f} of each blind panel using the rectifying plates of CASE 1 to CASE 6.
According to the analysis result, the straightening vane 40 of the first embodiment is provided with the communication portion 50 at the end side, the top side, and the intermediate portion between the end side and the top side of each straightening vane 40 in the depth direction. _{9 (c); the wind direction wind power coefficient C f} of the blind panel of CASE 3 and CASE 6 shown in FIG. 10 (c) is as small as 0.22; 0.19, and acts on the entire straightening vane 40 of the blind panel. It turned out that the force was extremely small.
On the other hand, the blind panel of CASE1 and CASE4 using a straightening vane having a communicating portion only on the top side of the straightening vane, and CASE2 using a straightening vane having a communicating portion only on the top side and the end side of the straightening vane. _{It was found that in the blindfold panel of CASE5, the wind direction wind force coefficient C f} is larger than that of the blindfold panel of CASE3 and CASE6 of the first embodiment, and the force acting on the entire straightening vane 40 of the blindfold panel 70 is larger.
That is, according to the blindfold panel 30 using the straightening vane 40 of the first embodiment, it was demonstrated that the force acting on the entire range of the straightening vane 40 can be reduced.

The shape of the communication portion 50 is not limited to the above shape, and may be any shape as long as it communicates with each other in the ventilation passage R without drastically changing the flow of the wind W. ..

Further, the shape and specific dimensions of the straightening vane 40 are not particularly limited.
For example, as in the embodiment, if the first rectifying unit 41 and the second rectifying unit 43 are formed in line symmetry with the line passing through the top P orthogonal to the virtual line L2 as the target axis L1. Although the rectifying plate 40 can be easily manufactured, the rectifying plate 40 does not necessarily have to have the first rectifying unit 41 and the second rectifying unit 43 formed line-symmetrically. _{For example, the inclination angles θ 1} ; θ _{1 of} the first rectifying unit 41 and the second rectifying unit 43 may not be set to the same angle.
Further, as described above, the top P of the straightening vane 40 may be formed in an acute-angled shape or may be formed in a curved shape.
Further, the cross-sectional shape of the straightening vane 40 may be, for example, M-shaped or W-shaped.

Further, it may be a blind panel configured so that the top P of each straightening vane 40 is located below.
Further, in the above, an example in which the distance between the communication portion 50 and the communication portion 50 is made uniform is shown, but even if the distance between the communication portion 50 and the communication portion 50 is not uniform, the above-mentioned condition 1 or condition 1 or condition is shown. It suffices to satisfy 2.
Further, in the above, the blind panel 60 configured by arranging a plurality of straightening vanes 40 at regular intervals is illustrated, but the spacing between the straightening vanes 40; 40 does not have to be constant.

Further, it is clear to those skilled in the art that the technical scope of the present invention is not limited to the above-described embodiment, and various changes and improvements can be made by combining the embodiments. Further, it is clear from the description of the scope of claims that such various modified and improved forms can be included in the technical scope of the present invention.
In the above embodiment, an example in which the blind panel 30 is applied to the so-called partition plate provided in the building 1 has been described, but the intended use is not limited to this. For example, by changing the material of the blind panel 30 to hard resin, metal, glass, or the like, it can also be used as the outdoor side wall surface (handrail) 5 of the building 1. That is, the blindfold panel 30 of the present embodiment can be applied to any place where the function as a blindfold is required, by appropriately selecting the material and the shape.
Further, if the end of the first rectifying unit 41 and the end of the second rectifying unit 43, that is, both ends of the rectifying plate 40 in the depth direction have curved surfaces, they act on the rectifying plate 40 of each blind panel. The relative value of the force can be further reduced.

30 blind panel, 40 rectifying plate, 41 1st rectifying section, 43 2nd rectifying section,
50 Communication part, L1 axis of symmetry, L2 virtual line, P top, R ventilation path, W wind,
a line of sight, b inner surface of the current plate, c virtual surface, d open edge.

Claims (4)

A blind panel having a plurality of ventilation passages formed between a plurality of straightening vanes extending from one of the depth directions to the other when the wind passing direction is the depth direction.
The plurality of straightening vanes are arranged at predetermined intervals in a direction along a plane orthogonal to the depth direction.
Each straightening vane
A first rectifying unit extending upward or downward with a predetermined angle from one of the depth directions to the other of the depth directions.
A second rectifying unit extending upward or downward with a predetermined angle from the other in the depth direction to one in the depth direction.
The top that forms the boundary between the first rectifying section and the second rectifying section,
It is provided with a communication portion formed so as to penetrate the straightening vane and allowing adjacent ventilation passages to communicate with each other through the straightening vane.
The tops of one of the straightening vanes adjacent to each other are located on the virtual line connecting one end and the other end of the other straightening vane in the depth direction, or are located on the top side of the other straightening vane with respect to the virtual line. Set to
The communication portion is provided at the end side, the top side, and the intermediate portion between the end side and the top side of each straightening vane in the depth direction.
Each of the communication portions is formed by elongated holes that continuously extend from one end side to the other end side in the width direction when the ridgeline direction of the top of the straightening vane is the width direction of the straightening vane.
The ventilation through the communicating portion when viewed through the ventilation passage toward the other side in the depth direction of the current plate from one end side in the depth direction of the current plate along the plate surface of the rectifier plate So that the outside of the road is not visible
The condition that the line of sight when looking into the ventilation path intersects with the inner surface of the upper rectifying plate among the upper and lower rectifying plates constituting the ventilation path.
The condition that the line of sight when looking into the ventilation path and the wall surrounding the communication portion of the upper rectifying plate among the upper and lower rectifying plates constituting the ventilation path intersect.
When looking into the ventilation path, the line of sight passing through the communication portion of the upper rectifying plate among the upper and lower rectifying plates constituting the ventilation path and the inner surface of the rectifying plate located further above the upper rectifying plate. Condition 1, that
When looking into the ventilation path, the line of sight passing through the communication portion of the upper rectifying plate among the upper and lower rectifying plates constituting the ventilation path and the communication of the rectifying plate located further above the upper rectifying plate. Whether one or more of the conditions 2 that the wall surrounding the part intersects are satisfied.
or,
The condition that the line of sight when looking into the ventilation path intersects with the inner surface of the lower rectifying plate among the upper and lower rectifying plates constituting the ventilation path.
The condition that the line of sight when looking into the ventilation path and the wall surrounding the communication portion of the lower rectifying plate among the upper and lower rectifying plates constituting the ventilation path intersect.
When looking into the ventilation path, the line of sight passing through the communication portion of the lower rectifying plate among the upper and lower rectifying plates constituting the ventilation path and the rectifying position further below the lower rectifying plate. Condition that the inner surface of the board intersects 1.
When looking into the ventilation path, the line of sight passing through the communication portion of the lower rectifying plate among the upper and lower rectifying plates constituting the ventilation path and the rectifying position further below the lower rectifying plate. A blindfold panel configured to satisfy one or more of the conditions 2 that the walls surrounding the communication portions of the boards intersect. The condition 2 is the line of sight when looking into the ventilation path and the inner surface of the straightening vane located further above the upper straightening vane or the inner surface of the straightening vane located further below the lower straightening vane. The length from the intersection with the virtual surface inside the opening of the communication portion located on the same surface as the above to the opening edge edge located on the end side in the depth direction of the communication portion is defined as X _n , and the virtual surface and the virtual surface. When the angle formed by the line of sight passing through the virtual surface is θx and the thickness dimension of the straightening vane is t.
The blindfold panel according to claim 1, wherein the condition is that X _n tan θ _{x ≦ t is satisfied.} The first or second rectifying unit according to claim 1 or 2 , wherein the first rectifying unit and the second rectifying unit are formed in line symmetry with a line passing through the top as an object axis orthogonal to the virtual line. Blindfold panel. _{The inclination angle θ 1} of the first rectifying unit and the second rectifying unit with respect to the virtual line connecting the lower end of the first rectifying unit and the lower end of the second rectifying unit is set in the range of 5 ° to 40 °. The blindfold panel according to any one of claims 1 to 3, wherein the blind panel is characterized.

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