JP6087203B2 - Vertical louver - Google Patents

Description

  The present invention relates to a vertical louver attached to a window opening formed in a building.

  2. Description of the Related Art Conventionally, there is known a vertical louver that is attached to the outdoor side of a window opening formed in a building and can shield or blind the window opening while ensuring visibility from the window opening.

  For example, Patent Literature 1 includes a plurality of outer slats and a plurality of inner slats disposed on the building side of the outer slats, and the outer slats and the inner slats are orthogonal to the interior and exterior directions of the building. There is disclosed a vertical louver that is arranged with a predetermined interval offset in the direction and has concave surface portions formed on the inner surface of the outer slat and the outer surface of the inner slat.

JP 2005-308976 A

  However, in the conventional vertical louver, the outer slats and the inner slats are arranged in parallel to the window opening, so that the concave surface of the inner slats passes through the gap formed between the adjacent outer slats. After hitting the part, the light is reflected back to the gap. For this reason, reflected light cannot be taken into the room from the window opening, and it has been difficult to ensure appropriate brightness.

  Further, in the conventional vertical louver, the outer slats and the inner slats are arranged in parallel to the window opening, so the interval between the outer slats and the inner slats in the inside and outside direction of the building becomes small, The visibility (viewability) from the window opening was poor.

  The present invention was created from such a viewpoint, and an object of the present invention is to provide a vertical louver that can improve the visibility from a window opening while taking reflected light from the window opening. .

  In order to solve the above-mentioned problems, the present invention is a vertical louver attached to a window opening formed in a building from the outdoor side, and an outer slat and an inner wing disposed closer to the building than the outer slat. The outer slats and the inner slats are arranged with a predetermined interval offset in a direction perpendicular to the inner and outer directions of the building, and on the side of the outer slats facing the inner slats The first concave surface portion is formed, and the second concave surface portion is formed on the side of the inner slat facing the outer slat. The outer slat and the inner slat are set at different arrangement angles. It is characterized by.

According to the present invention, by adjusting the arrangement angle of the inner slats with respect to the outer slats, the sunlight that hits the second concave part of the inner slats is reflected toward the first concave part of the outer slats, The reflected light hitting the first concave surface portion can be guided toward the window opening. Therefore, since reflected light can be taken into the room from the window opening, it is possible to reduce glare while ensuring appropriate brightness.
Further, according to the present invention, when the outer slats are arranged in parallel to the window opening, the inner slats are arranged at an angle relative to the outer slats (that is, closer to the outer slats of the inner slats). The edge of the door is inclined so that it approaches the window opening), and the distance between the outer and inner slats in the inside and outside of the building is made larger than before to improve visibility from the window opening. be able to.

  The second concave surface portion reflects sunlight toward the first concave surface portion, and the first concave surface portion directs the sunlight reflected by the second concave surface portion toward the window opening. It is preferable to have a configuration in which the light is reflected.

  According to this configuration, since reflected light can be taken into the room from the window opening, dazzling can be reduced while ensuring appropriate brightness.

  Moreover, it is preferable that the first concave surface portion and the second concave surface portion are configured by a diffuse reflection surface.

  According to such a configuration, since the first concave surface portion and the second concave surface portion are configured by the diffuse reflection surface, the sunlight hitting the first concave surface portion and the second concave surface portion is diffusely reflected. Thereby, since sunlight spreads uniformly toward the window opening, it is possible to uniformly brighten the room and reduce glare.

  Moreover, it is preferable that the outer slats and the inner slats are configured to be rotatable around a vertical axis.

  According to such a configuration, since the outer slats and the inner slats can rotate around the vertical axis, the arrangement angle of the outer slats and the inner slats is arbitrarily set according to the region, season, time zone, etc. The amount of light collected (light shielding amount) can be adjusted.

  Further, it further comprises rotating means for rotating the outer slats and the inner slats about a vertical axis, and the rotating means is configured to rotate the outer slats and the inner slats synchronously while maintaining a phase difference. Is preferable.

  According to such a configuration, the rotating means rotates the outer blade plate and the inner blade plate synchronously while maintaining the phase difference, so that the outer blade plate and the inner blade plate can rotate while maintaining different arrangement angles. it can.

  Moreover, it is preferable that the horizontal ends of the outer slats and the inner slats overlap in the inner and outer directions of the building in a state where the outer slats are arranged in parallel to the window opening. .

  According to such a configuration, in the state where the outer slats are arranged in parallel to the window opening, the horizontal ends of the outer slats and the inner slats overlap in the inner and outer directions of the building. By tilting so that one end in the direction approaches the window opening, it is possible to reflect sunlight that hits one end in the horizontal direction of the inner slat toward the first concave portion of the outer slat. The reflected light can be taken into the room.

  In addition, it is preferable that a photovoltaic power generation element is installed on a surface opposite to the first concave portion with the center of the outer slats interposed therebetween.

  According to such a configuration, since the photovoltaic power generation element is installed on the surface opposite to the first concave portion across the center of the outer slat, sunlight that is shielded from light can be effectively used as energy for power generation.

  ADVANTAGE OF THE INVENTION According to this invention, the vertical louver which can improve the visibility from a window opening part can be provided, taking in reflected light from a window opening part.

It is a front view which shows the state which attached the vertical louver which concerns on embodiment to the window opening part of a building. It is the II sectional view taken on the line of FIG. It is a top view which shows the outer blade and inner blade which concern on embodiment. It is a top view which shows the outer blade, inner blade, and rotation means which concern on embodiment. It is explanatory drawing which shows operation | movement of the vertical louver which concerns on embodiment. It is explanatory drawing which shows operation | movement of the vertical louver which concerns on embodiment. It is explanatory drawing which shows operation | movement of the vertical louver which concerns on embodiment. It is explanatory drawing which shows operation | movement of the vertical louver which concerns on embodiment. It is explanatory drawing which shows operation | movement of the vertical louver which concerns on embodiment. It is explanatory drawing which shows operation | movement of the vertical louver which concerns on embodiment. It is a top view which shows the outer blade and inner blade which concern on a modification.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the description, the same elements are denoted by the same reference numerals, and redundant description is omitted. In the following description, the inside / outside direction of the building is referred to as “inside / outside direction X”, and the direction orthogonal to the inside / outside direction X is referred to as “orthogonal direction Y”.

Drawing 1 is a front view showing the state where the vertical louver concerning an embodiment was attached to the window opening of a building. 2 is a cross-sectional view taken along the line II of FIG.
As shown in FIGS. 1 and 2, a vertical louver 1 according to an embodiment of the present invention is a member attached from the outdoor side to a window opening B <b> 1 formed in a building B, and has functions such as light shielding and blindfolding. have. The vertical louver 1 includes a frame 10, a plurality of outer blades 20, a plurality of inner blades 30, and a rotating means 60 (see FIG. 4).

<Frame>
As shown in FIG. 1, the frame 10 is a metal member formed in a square frame shape when viewed from the front. The frame 10 includes a pair of vertical frames 11 arranged at a predetermined interval along the orthogonal direction Y, and a pair of horizontal frames 12 that connect the upper ends and the lower ends of the pair of vertical frames 11. . As shown in FIG. 2, the frame 10 is fixed to the outer wall surface of the building B via a connecting member 50. Rotating means 60 (see FIGS. 2 and 4) for rotating the outer slat 20 and the inner slat 30 is installed inside the horizontal frame 12. The rotating means 60 will be described in detail later.

<Outer slat>
As shown in FIG. 1, the outer wing plate 20 is a metal member that is vertically disposed between the upper and lower horizontal frames 12 and formed of, for example, an aluminum alloy. The outer blades 20 are arranged in parallel along the orthogonal direction Y with a predetermined interval. As shown in FIG. 2, the outer wing plate 20 includes a hollow quadrangular columnar outer body member 21 and an outer rotating shaft 22 provided at the center of the outer body member 21. The outer slat 20 may be made of resin or wood, for example.

  An arcuate (curved surface) first concave surface portion 23 is formed on the outer body member 21 on the side facing the inner wing plate 30. The first concave surface portion 23 is curved so as to be concave toward the direction away from the inner wing plate 30. For example, a mat reflector is attached to the first concave surface portion 23 to form a diffuse reflection surface.

  An arc-shaped first convex surface portion 24 is formed on the opposite side of the first concave surface portion 23 across the center of the outer body member 21. The first convex surface portion 24 is curved so as to be convex toward the direction away from the inner wing plate 30. A solar power generation element 40 is attached to the first convex surface portion 24. The outer body member 21 may be freely changed in consideration of the appearance design, for example, it may be flat without forming the first convex surface portion 24.

  As shown in FIG. 1, the outer rotation shaft 22 is installed so as to penetrate the outer body member 21 in the vertical direction, and is fixed to the outer body member 21 with a mounting plate and a bolt (not shown). The outer rotating shaft 22 is attached so that its upper end and lower end can rotate about the vertical axis with respect to the upper and lower horizontal frames 12. With such a configuration, the outer body member 21 rotates with the rotation of the outer rotating shaft 22, so that the arrangement angle of the outer blade 20 can be adjusted. The outer rotating shaft 22 is mechanically coupled to rotating means 60 provided inside the horizontal frame 12 (see FIG. 4). All the outer slats 20 are rotated by the same angle by the rotating means 60. Further, all the outer slats 20 are arranged in parallel so that the rotation center (outer rotation shaft 22) is located on the same straight line along the orthogonal direction Y, as shown in FIG. In addition, you may make it the fixed type which cannot adjust the arrangement | positioning angle of the outer blade 20.

<Inner slats>
As shown in FIG. 1, the inner slat 30 is a metal member that is vertically disposed between the upper and lower horizontal frames 12 and formed of, for example, an aluminum alloy. The inner slats 30 are arranged in parallel along the orthogonal direction Y with a predetermined interval. As shown in FIG. 2, the inner slats 30 are disposed on the building B side with respect to the outer slats 20 and are offset from the outer slats 20 by a predetermined interval in the orthogonal direction Y. The inner slat 30 has a hollow rectangular columnar inner main body member 31 and an inner rotary shaft 32 provided at the center of the inner main body member 31. The inner slat 30 may be made of resin or wood, for example.

  An arc-shaped second concave surface portion 33 is formed on the side of the inner body member 31 that faces the outer blade 20. The second concave surface portion 33 is curved so as to be concave toward the direction away from the outer wing plate 20. For example, a mat reflecting plate is attached to the second concave surface portion 33 to form a diffuse reflection surface. In the present embodiment, the second concave surface portion 33 mainly has a function of reflecting sunlight toward the first concave surface portion 23. Further, the first concave surface portion 23 has a function of reflecting sunlight reflected mainly by the second concave surface portion 33 toward the window opening B1.

  An arc-shaped second convex surface portion 34 is formed on the side opposite to the first concave surface portion 23 across the center of the inner body member 31. The second convex surface portion 34 is curved so as to be convex in a direction away from the outer wing plate 20. The inner body member 31 may be freely changed in consideration of the appearance design, for example, it may be flat without forming the second convex surface portion 34.

  As shown in FIG. 1, the inner rotary shaft 32 is installed so as to penetrate the inner main body member 31 in the vertical direction, and is fixed to the inner main body member 31 with a mounting plate and a bolt (not shown). The inner rotary shaft 32 is attached such that the upper end and the lower end are rotatable about the vertical axis with respect to the upper and lower horizontal frames 12. With such a configuration, the inner body member 31 rotates with the rotation of the inner rotation shaft 32, so that the arrangement angle of the inner blade 30 can be adjusted. The inner rotating shaft 32 is mechanically coupled to rotating means 60 provided inside the frame 10 (see FIG. 4). All the inner slats 30 are rotated by the same angle by the rotating means 60. Further, all the inner slats 30 are arranged side by side so that the rotation center (inner rotation shaft 32) is located on the same straight line along the orthogonal direction Y as shown in FIG. In addition, you may make it the fixed type which cannot adjust the arrangement | positioning angle of the inner blade 30. FIG.

FIG. 3 is a plan view showing an outer slat and an inner slat according to the embodiment. FIG. 4 is a plan view showing the outer slats, the inner slats, and the rotating means according to the embodiment. In the present embodiment, the following description will be made with the state of FIGS. 3 and 4 as the reference position of the vertical louver 1.
As shown in FIG. 3, the center line Ca1 along the orthogonal direction Y passing through the center Ca of the outer slat 20 and the center line Cb1 along the orthogonal direction Y passing through the center Cb of the inner slat 30 are parallel to each other. And offset by a predetermined interval in the inner and outer direction X. In addition, an outer reference line La1 that is parallel to the line La2 that connects both ends of the first concave surface portion 23 and passes through the center Ca coincides with the center line Ca1. That is, the arrangement angle of the outer blade 20 is zero. Further, the inner reference line Lb1 that is parallel to the line Lb2 connecting both ends of the second concave surface portion 33 and passes through the center Cb is inclined by a predetermined angle θ (for example, θ = 15 °) with respect to the center line Cb1. ing. That is, the arrangement angle of the inner wing plate 30 is inclined by an angle θ than the arrangement angle of the outer wing plate 20 and is set to be different from the arrangement angle of the outer wing plate 20. In other words, the inner slat 30 is inclined so that the end (one end in the longitudinal direction in plan view) near the outer slat 20 approaches the window opening B1.

  With such a configuration, as shown in FIG. 4, the gap G1 between the outer wing plate 20 and the inner wing plate 30 in the inner / outer direction X is the outer wing when the outer wing plate 20 and the inner wing plate 30 are arranged in parallel. It becomes larger than the gap G <b> 2 in the inner / outer direction X between the plate 20 and the inner wing plate 30. Therefore, according to this embodiment, visibility from the window opening B1 can be improved. Incidentally, the angle θ may be set freely, but is preferably set within a range of, for example, more than 0 ° and not more than 20 °. Further, as indicated by the rotation trajectories La3 and Lb3 in FIG. 3, the outer wing plate 20 and the inner wing plate 30 are provided at positions where they do not contact each other.

<Rotating means>
As shown in FIG. 4, the rotating means 60 is a device that rotates the outer slat 20 and the inner slat 30. The rotating means 60 is connected to the first wheel gear 61 connected to the outer rotating shaft 22 of the outer blade 20, the first worm gear 62 meshing with the first wheel gear 61, and the inner rotating shaft 32 of the inner blade 30. Second wheel gear 63, second worm gear 64 meshing with second wheel gear 63, shaft 65 connecting first worm gear 62 and second worm gear 64, servo motor 66 for rotating shaft 65, servo And a control unit 67 that controls the motor 66.

  The controller 67 controls the servo motor 66 so that the first convex surface 24 of the outer slat 20 is orthogonal to the sunlight angle calculated from the position coordinate data of the building B stored in advance and the date / time data. It is. Thereby, the power generation efficiency of the photovoltaic power generation element 40 provided on the first convex surface portion 24 is improved. The control unit 67 is realized, for example, by causing a general-purpose computer device to execute a predetermined program. In the present embodiment, the rotating means 60 includes a gear ratio between the first wheel gear 61 and the first worm gear 62 and a second wheel gear so that all the outer blades 20 and the inner blades 30 rotate at the same angle simultaneously. 63 and the gear ratio of the second worm gear 64 are set.

  The rotating means 60 is not limited to such an automatic control device. For example, the shaft 65 is rotated by a manual rotation lever so that the outer wing plate 20 and the inner wing plate 30 are rotated. May be. Moreover, you may make it rotate the outer blade 20 and the inner blade 30 with another drive type. Furthermore, you may make it rotate the outer blade 20 and the inner blade 30 separately.

  The vertical louver 1 according to the embodiment of the present invention is basically configured as described above. Next, the operation thereof will be described with reference to FIGS. In the following description, a case where the vertical louver 1 is installed in the window opening B1 on the south surface of the building B will be described as an example. The angle of the outer slat 20 (inner slat 30) is positive when rotated counterclockwise with respect to the center line Ca1 (Cb1), and negative when rotated clockwise. Furthermore, the symbol “Z” in FIGS. 5 to 10 indicates the incident direction of sunlight.

  As shown in FIG. 5 to FIG. 10, the control unit 67 sets the outer wing plate 20 with respect to the sunshine angle (sunlight incident direction Z) calculated from the position coordinate data and date / time data of the building B stored in advance. The servo motor 66 is rotated so that the first convex surface portion 24 is orthogonal.

  As shown in FIG. 5, since the sun is in the east in the morning and the sunlight is incident at an angle substantially parallel to the window opening B1, the outer wing plate 20 is angled from the center line Ca1 by an angle θa1 (eg, θa1 = 75 And the first convex surface portion 24 is orthogonal to the incident direction Z. When the outer wing plate 20 is thus rotated, the inner wing plate 30 is inclined from the center line Cb1 by an angle θb1 (for example, θb1 = 90 °) and is located on the back side of the outer wing plate 20 with respect to the incident direction Z. At this time, the phase difference (that is, θb1−θa1) between the outer blade 20 and the inner blade 30 is 15 °. Thereby, since sunlight hits only the photovoltaic power generation element 40 installed in the 1st convex surface part 24, while being able to perform solar power generation, the amount of light extraction can be suppressed.

  Subsequently, as shown in FIG. 6, the sun moves from the east to the south as it shifts from morning to noon, so the outer wing plate 20 and the inner wing plate 30 are rotated according to the movement of the sun. Specifically, the outer blade 20 is rotated from the center line Ca1 by an angle θa2 (for example, θa2 = 45 °), and the first convex surface portion 24 is orthogonal to the incident direction Z. When the outer slats 20 are thus rotated, the inner slats 30 are inclined from the center line Cb1 by an angle θb2 (for example, θb2 = 60 °), and in the plan view of the second concave surface portion 33, toward the one end 33a in the longitudinal direction. Sunlight hits. At this time, the phase difference (that is, θb2−θa2) between the outer blade 20 and the inner blade 30 is kept at 15 °. The sunlight that hits the second concave surface portion 33 is reflected toward the first concave surface portion 23 of the outer blade 20 and then further reflected from the first concave surface portion 23 toward the window opening B1. Thereby, while being able to perform solar power generation, reflected light can be taken in indoors, shielding direct sunlight.

  As shown in FIG. 7, when the sun further moves from east to south, the outer wing plate 20 is rotated from the center line Ca1 by an angle θa3 (for example, θa3 = 30 °), and the first convex surface portion 24 is moved in the incident direction Z. Make orthogonal. When the outer slats 20 are thus rotated, the inner slats 30 are inclined from the center line Cb1 by an angle θb3 (for example, θb3 = 45 °), and the sun extends from one longitudinal end 33a of the second concave surface portion 33 to the center. Light hits. Also at this time, the phase difference between the outer wing plate 20 and the inner wing plate 30 (ie, θb3−θa3) is maintained at 15 ° (the same applies hereinafter). The sunlight that hits the second concave surface portion 33 is reflected toward the first concave surface portion 23 of the outer blade 20 and then further reflected from the first concave surface portion 23 toward the window opening B1. Thereby, while being able to perform solar power generation, reflected light can be taken in indoors, shielding direct sunlight.

  As shown in FIG. 8, when the sun further moves from east to south, the outer wing plate 20 is rotated from the center line Ca1 by an angle θa4 (for example, θa3 = 15 °), and the first convex surface portion 24 is moved in the incident direction Z. Make orthogonal. When the outer slat 20 is thus rotated, the inner slat 30 is inclined from the center line Cb1 by an angle θb4 (for example, θb4 = 30 °), and the second concave surface portion 33 is extended from one longitudinal end 33a to the other longitudinal end 33b. Sunlight hits the side. Thereby, while being able to perform solar power generation, the sunlight which hit the longitudinal direction one end 33a side of the 2nd concave-surface part 33 can be reflected so that it may bounce off toward the outdoors. At this time, the arrangement angle of the inner blade 30 is inclined by θ than the arrangement angle of the outer blade 20 (see FIG. 3), and the inner blade 30 has the second concave surface portion 33. The sunlight hitting the other end 33 b in the longitudinal direction of the second concave surface portion 33 can be reflected toward the first concave surface portion 23. As a result, the reflected light that has hit the first concave surface portion 23 can be guided toward the window opening B1. Therefore, reflected light can be taken into the room while shielding direct sunlight.

  Subsequently, as shown in FIG. 9, when the sun is located south, sunlight enters from a direction orthogonal to the window opening B1, and therefore the outer wing plate 20 is parallel to the center line Ca1 (angle θa5 = 0 °), and the first convex surface portion 24 is orthogonal to the incident direction Z. When the outer wing plate 20 is thus rotated, the inner wing plate 30 is inclined from the center line Cb1 by an angle θb5 (for example, θb5 = 15 °), and sunlight hits the entire second concave surface portion 33. Thereby, while being able to perform solar power generation, the sunlight which hit the longitudinal direction one end 33a side of the 2nd concave-surface part 33 can be reflected so that it may bounce off toward the outdoors. At this time, the arrangement angle of the inner wing plate 30 is inclined by θ than the arrangement angle of the outer wing plate 20 (see FIG. 3), and the inner wing plate 30 has the second concave surface portion 33. Since one end in the longitudinal direction (one end in the horizontal direction) of the outer wing plate 20 and the inner wing plate 30 overlaps in the inner and outer direction X, the sunlight that hits the other end 33b in the longitudinal direction of the second concave surface portion 33 is exposed to the first concave surface. The light can be reflected toward the portion 23. As a result, the reflected light that has hit the first concave surface portion 23 can be guided toward the window opening B1. Further, since the arrangement angle of the inner wing plate 30 is inclined by θ than the arrangement angle of the outer wing plate 20, the outer wing plate 20 is compared with the case where the outer wing plate 20 and the inner wing plate 30 are arranged in parallel. And the inner and outer blades 30 in the inner and outer direction X can be increased. Therefore, visibility from the window opening B1 can be improved while blocking direct sunlight and taking reflected light into the room.

  Subsequently, as shown in FIG. 10, the sun moves from south to west as it moves from day to evening, so the outer wing plate 20 and the inner wing plate 30 are rotated in accordance with the movement of the sun. Specifically, the outer wing plate 20 is rotated from the center line Ca1 by an angle θa6 (for example, θa6 = −15 °), and the first convex surface portion 24 is orthogonal to the incident direction Z. When the outer wing plate 20 is thus rotated, the inner wing plate 30 is positioned in parallel (θb6 = 0 °) with respect to the center line Cb1 and the entire second concave surface portion 33 is exposed to sunlight. Thereby, while being able to perform solar power generation, it can reflect so that the sunlight which hit the 2nd concave-surface part 33 may bounce off toward the outdoors. At this time, since the arrangement angle of the inner wing plate 30 is inclined by θ from the arrangement angle of the outer wing plate 20, the outer wing plate is compared with the case where the outer wing plate 20 and the inner wing plate 30 are arranged in parallel. The distance G3 in the inner / outer direction X between the inner wing plate 30 on the right and 20 can be increased. Therefore, visibility from the window opening B1 can be improved while shielding direct sunlight.

  Note that the vertical louver 1 may be configured to be switchable in a plurality of stages. For example, by operating an operator such as a handle, the vertical louver 1 is configured to be switchable between two stages of the state of FIG. 6 and the state of FIG. Also good. Further, the vertical louver 1 may be automatically controlled to rotate so that the outer surface of the outer wing plate 20 is orthogonal to the incident direction Z according to the movement of the sun. If it does in this way, power generation efficiency can be raised.

According to the present embodiment described above, by adjusting the arrangement angle of the inner slat 30 with respect to the outer slat 20, the sunlight that hits the second concave surface portion 33 of the inner slat 30 is the second of the outer slat 20. The reflected light that is reflected toward the first concave surface portion 23 and impinges on the first concave surface portion 23 can be guided toward the window opening B1. Therefore, since reflected light can be taken in into the room from the window opening B1, dazzle can be reduced while ensuring appropriate brightness.
Further, according to the present embodiment, when the outer wing plate 20 is arranged in parallel with the window opening B1, the arrangement angle of the inner wing plate 30 with respect to the outer wing plate 20 is adjusted (that is, the inner wing plate). 30), the gap G1 in the inner / outer direction X between the outer wing plate 20 and the inner wing plate 30 is made larger than the conventional one by tilting the end portion of the outer wing plate 20 closer to the window opening B1). The visibility from the window opening B1 can be improved.

  According to this embodiment, since the diffuse reflection surface is formed in the first concave surface portion 23 and the second concave surface portion 33, the sunlight hitting the first concave surface portion 23 and the second concave surface portion 33 is diffusely reflected. To do. Thereby, since sunlight spreads uniformly toward the window opening B1, it is possible to uniformly brighten the room and reduce glare.

  According to the present embodiment, since the outer slats 20 and the inner slats 30 can rotate around the vertical axis, the arrangement of the outer slats 20 and the inner slats 30 according to the region, season, time zone, and the like. The angle can be arbitrarily set, and the amount of light collected (light shielding amount) can be adjusted.

  According to the present embodiment, the rotation means 60 rotates the outer wing plate 20 and the inner wing plate 30 synchronously while maintaining the phase difference, so that the outer wing plate 20 and the inner wing plate 30 maintain different arrangement angles. It can be rotated as it is.

  According to the present embodiment, the longitudinal ends of the outer blade 20 and the inner blade 30 overlap in the inner / outer direction X in a state where the outer blade 20 is arranged in parallel to the window opening B1. When the one end in the longitudinal direction of the slat 30 is inclined so as to approach the window opening B <b> 1, the sunlight that hits one end in the longitudinal direction of the inner slat 30 is reflected toward the first concave portion 23 of the outer slat 20. As a result, reflected light can be taken into the room from the window opening B1.

  According to this embodiment, since the photovoltaic power generation element 40 is installed on the first convex surface portion 24 of the outer slat 20, sunlight that is shielded from light can be effectively used as power generation energy.

  According to the present embodiment, by adjusting the arrangement angle of the outer wing plate 20 and the inner wing plate 30 with respect to the incident direction Z of sunlight, direct sunlight can be blocked or reflected light can be taken in. Then, by blocking direct sunlight, it is possible to suppress an increase in the room temperature in summer and to reduce the amount of power used by the air conditioning equipment. In addition, by adopting reflected light, it is possible to suppress the decrease in the room temperature in winter and to reduce the amount of power used by the air conditioning equipment. Therefore, it can contribute to energy saving.

  As mentioned above, although embodiment of this invention was described in detail with reference to drawings, this invention is not limited to this, In the range which does not deviate from the main point of invention, it can change suitably.

  In the present embodiment, the first concave surface portion 23 and the second concave surface portion 33 are formed in an arc shape, but the present invention is not limited to this. For example, as shown in FIG. 11, the first concave surface portion 23 includes a pair of sides 23 a and 23 a provided symmetrically across the center of the outer body member 21, and is a concave surface that exhibits a dogleg shape (V shape). May be formed. Similarly, the second concave surface portion 33 may include a pair of sides 33c and 33c provided symmetrically with respect to the center of the inner main body member 31, and may be formed as a concave surface having a character shape. Although not shown, the first concave surface portion 23 and the second concave surface portion 33 are concave surfaces having a plurality of sides (three sides or more) provided symmetrically with the centers of the outer body member 21 and the inner body member 31 interposed therebetween. It may be formed.

B Building B1 Window opening 1 Vertical louver 10 Frame 20 Outer wing plate 21 Outer body member 22 Outer rotating shaft 23 First concave surface portion 24 First convex surface portion 30 Inner wing plate 31 Inner body member 32 Inner rotating shaft 33 Second concave surface portion 34 Second convex portion 40 Photovoltaic power generation element 60 Rotating means X Inner / outer direction Y Orthogonal direction Z Incident direction

Claims (7)

A vertical louver attached from the outdoor side to a window opening formed in a building,
The outer slats,
An inner slat disposed closer to the building than the outer slat, and
The outer slats and the inner slats are arranged with a predetermined interval offset in a direction orthogonal to the interior and exterior directions of the building
On the side of the outer slat facing the inner slat, a first concave portion is formed,
On the side of the inner slat facing the outer slat, a second concave portion is formed,
The longitudinal louver is characterized in that the outer slat and the inner slat are set at different arrangement angles. The second concave surface portion reflects sunlight toward the first concave surface portion,
The vertical louver according to claim 1, wherein the first concave surface portion reflects the sunlight reflected by the second concave surface portion toward the window opening.   The vertical louver according to claim 1 or 2, wherein the first concave surface portion and the second concave surface portion are configured by a diffuse reflection surface.   The longitudinal louver according to any one of claims 1 to 3, wherein the outer slats and the inner slats are rotatable around a vertical axis. Rotating means for rotating the outer slats and the inner slats about a vertical axis,
The vertical louver according to claim 4, wherein the rotating means rotates the outer wing plate and the inner wing plate synchronously while maintaining a phase difference.   5. The horizontal ends of the outer slats and the inner slats overlap in the inner and outer directions of the building in a state where the outer slats are arranged in parallel to the window opening. Or the vertical louver of Claim 5.   The photovoltaic power generation element is installed in the surface on the opposite side to the said 1st concave-surface part on both sides of the center of the said outer blade | wing board, The Claim 1 thru | or 6 characterized by the above-mentioned. Vertical louver.

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