JP2002097869A - Louver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a louver capable of daylighting to make the interior of a room moderately light without the direct sunlight streaming into the room. SOLUTION: In this louver 2 for shading and daylighting by rotating a plurality of lined-up louver blades 1 of plate shape, a part of the whole surface of the louver blade 1 of plate shape is provided with a diffusion part 3 for diffusing light, and the part other than the diffusion part 3 is made a shading part 4 that does not transmit light. When rotating each louver 1 for shading, the diffusion part 3 of each louver blade 1 overlaps the shading part 4 of the louver blade 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a louver provided in a window for shading and lighting.

[0002]

2. Description of the Related Art Hitherto, a louver has been provided in a window to appropriately block light and light in order to block light such as direct sunlight radiating into a room from a window.

As shown in FIG. 7, a conventional louver provided on a window is provided with a plurality of plate-like louver blades 1 long in the left and right directions in the vertical direction, and each louver blade 1 is rotated about its own longitudinal axis. 8A, a gap 5 is formed between the adjacent louver blades 1 so that the room can be illuminated through the gap 5 or the space between the adjacent louver blades 1 can be formed as shown in FIG. 8B. The gap 5 is eliminated to shield light.

However, in the conventional louver 2 as described above, when the gap 5 is formed between the louver blades 1 for lighting as shown in FIG.
1 is straight through the gap 5 and shines into the room, and is dazzling. Therefore, in order to block the direct sunlight 61 that goes straight through the gap 5 and shines into the room, the direct sunlight 61 as shown in FIG.
When the louver blades 1 are rotated until the space does not enter the room and the gap 5 is narrowed, the light passing through the space 5 is reduced and the room becomes too dark.
There is a problem that it cannot be adjusted so that the direct sunlight 61 does not enter the room and the room does not become too dark.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to prevent direct sunlight from shining in and to make the room have a moderate brightness. It is an object to provide a louver capable of lighting.

[0006]

According to the present invention, there is provided a louver according to the present invention, comprising: a louver 2 for rotating a plurality of plate-shaped louver blades 1 to shield and collect light; A diffusing portion 3 for diffusing light is provided in a part of the entire surface of the blade 1 and a portion other than the diffusing portion 3 is formed as a light shielding portion 4 which does not transmit light. The diffusion part 3 of the louver blade 1 overlaps with the light shielding part 4 of the adjacent louver blade 1. With such a configuration, the direct sunlight 61 on the light-shielding portion outer surface 4a of the louver blade 1 can be used.
And the reflected light 62 is further reflected by the light shielding portion inner surface 4b of the adjacent louver blade 1 to be taken into the room 7, and the direct sunlight 61 is diffused by the diffusion portion 3 provided in the louver blade 1. The diffused light 63 can be introduced into the room 7 and indirect light such as the reflected light 62 and the diffused light 63 can be introduced, and soft light that is neither too dazzling nor too dark can be introduced into the room 7. In addition to switching between shading and lighting, the user can change the turning angle θ of the louver blade 1 arbitrarily within a settable range so that the user can adjust the lighting amount so that the room 7 has the desired brightness. It is possible to adjust.

Further, in a louver 2 for shading and lighting by rotating a plurality of plate-shaped louver blades 1 arranged in a row, a diffusing portion 3 for diffusing light to the upper end of the plate-shaped louver blades 1.
And a light-shielding portion 4 that does not transmit light except for the diffusion portion 3 of the plate-shaped louver blade 1. When each louver blade 1 is rotated to shield light, each louver blade 1 is rotated.
Is preferably overlapped with the light shielding portion 4 of the adjacent louver blade 1. With such a configuration, the direct sunlight 61 is reflected by the light-shielding portion outer surface 4a of the louver blade 1, and the reflected light 62 is further reflected by the adjacent light-shielding portion inner surface 4b of the louver blade 1 to be taken into the room 7. And the diffuser 3 provided at the upper end of the louver blade 1 diffuses the direct sunlight 61, and the diffused light 63 can be taken into the room 7, and the indirect light such as the reflected light 62 and the diffused light 63 can be taken. It becomes possible to take in soft light which is not too dazzling and not too dark into the room 7,
In addition to switching between shading and lighting, the user can adjust the amount of light so that the interior 7 has the desired brightness by arbitrarily changing the rotation angle θ of the louver blade 1 within a settable range. It is possible.

Further, in a louver 2 for shading and lighting by rotating a plurality of plate-like louver blades 1 arranged in a row, a diffusing portion 3 for diffusing light to a lower end portion of the plate-like louver blades 1.
And a light-shielding portion 4 that does not transmit light except for the diffusion portion 3 of the plate-shaped louver blade 1. When each louver blade 1 is rotated to shield light, each louver blade 1 is rotated.
Is preferably overlapped with the light shielding portion 4 of the adjacent louver blade 1. With such a configuration, the direct sunlight 61 is reflected by the light-shielding portion outer surface 4a of the louver blade 1, and the reflected light 62 is further reflected by the adjacent light-shielding portion inner surface 4b of the louver blade 1 to be taken into the room 7. And the diffuser 3 provided at the lower end of the louver blade 1 diffuses the direct sunlight 61, and the diffused light 63 can be introduced into the room 7, and the indirect light such as the reflected light 62 and the diffused light 63 can be collected. It becomes possible to take in soft light which is not too dazzling and not too dark into the room 7,
In addition to switching between shading and lighting, the user can adjust the amount of light so that the interior 7 has the desired brightness by arbitrarily changing the rotation angle θ of the louver blade 1 within a settable range. It is possible.

Further, in a louver 2 for shading and lighting by rotating a plurality of plate-shaped louver blades 1 arranged, a diffusion portion 3 for diffusing light at the upper end and the lower end of the plate-shaped louver blades 1 is provided. At the same time, a portion other than the diffusion portion 3 of the plate-shaped louver blade 1 is a light shielding portion 4 that does not transmit light, and when each louver blade 1 is rotated to block light, the diffusion portion 3 of each louver blade 1 is adjacent. It is preferable to overlap with the light shielding portion 4 of the louver blade 1. With such a configuration, the direct sunlight 61 on the light-shielding portion outer surface 4a of the louver blade 1 can be used.
And the reflected light 62 is further reflected by the light-shielding portion inner surface 4b of the adjacent louver blade 1 and can be taken into the room 7, and is directly radiated by the diffusion portion 3 provided at the upper end and the lower end of the louver blade 1. The sunlight 61 is diffused and the diffused light 63 is taken into the room 7 or transmitted through the diffusion portion 3 provided at the upper end of the louver blade 1 and further transmitted through the diffusion portion 3 provided at the lower end of the adjacent louver blade 1. It is possible to take in indirect light such as reflected light 62, diffused light 63, and double diffused diffused light 63, and to provide softer light that is not too dazzling and not too dark. 7 and by changing the rotation angle θ of the louver blade 1 arbitrarily within a settable range as well as switching between light shielding and lighting, so that the room 7 has a desired brightness. To the user In which it is possible to adjust the lighting amount.

The width W ₃ of the diffusion section 3 in the direction orthogonal to the rotation axis of the louver blade 1 is set to
It is preferable to substantially half to equal the width W _4. By adopting such a configuration, it is possible to efficiently introduce soft light that is not too dazzling and not too dark by preventing direct sunlight 61 from a window from radiating into the room 7 with a simple configuration. And the amount of light taken into the room 7 can be adjusted according to the user's preference.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings.

The louver 2 according to the present embodiment has a plurality of plate-like louver blades 1 long in the left-right direction arranged in the vertical direction and arranged on a window so as to be rotatable about the longitudinal direction. Is changed to change the state of light shielding and lighting from the window and adjust the amount of light.

The louver blade 1 is provided with a diffusing portion 3 at the lower end in the vertical direction which does not directly travel light but transmits while diffusing the light, and a light shielding portion which blocks portions other than the diffusing portion 3 without transmitting light. It is set to 4. The light-shielding portion 4 of the louver blade 1 has a rigidity that does not cause excessive bending in the left and right longitudinal directions and does not transmit light.
For example, it is made of a material such as a synthetic resin. On the other hand, the diffusing portion 3 of the louver blade 1 is made of a translucent material that transmits light while diffusing the light without directly traveling the light, such as a material obtained by whitening or embossing a transparent synthetic resin or a film that diffuses light. It is composed of things that have been pasted. The louver blade 1 is obtained by integrally molding the light shielding portion 4 and the diffusion portion 3 by a method such as two-color molding or fusion.

The louver 2 in which a plurality of the louver blades 1 are arranged in the vertical direction as described above,
That is, by changing the rotation angle θ of the louver blade 1 about each axis in the left-right direction, the light-shielding / lighting state is switched or the light-amount is adjusted. For example, FIG. As shown, by increasing the rotation angle θ of the louver blade 1 to the maximum θ _max , the gap 5 between the louver blades 1 is eliminated, so that light entering through the gap 5 is eliminated. 1 diffusion unit 3
Are arranged so that they overlap the light-shielding portions 4 of the louver blades 1 adjacent to the lower side, so that the diffusion portion 3 is covered with the light-shielding portions 4 and light diffused and transmitted from the diffusion portion 3 is also provided. It blocks light by blocking it. In the case of daylighting, as shown in FIG. 2, the gap 5 is formed between the louver blades 1 by reducing the rotation angle θ of the louver blades 1, and the direct sunlight 61 hits the light-shielding portion outer surface 4 a of the louver blades 1. The reflected light 62 reflected on the inner surface 4b of the adjacent louver blade is further reflected by the light-shielding portion 4b, and the reflected light 62 further reflects into the room 7, and the direct sunlight 61 hit on the diffusion portion 3 of the louver blade 1 The light is diffused and transmitted to form diffused light 63, and the diffused light 63 can enter the room 7. Further, when adjusting the amount of light to be collected, for example, when increasing the amount of light to be collected, the rotation angle θ is reduced to increase the gap 5 between the louver blades 1 and increase the amount of light entering the room through the gap 5. In order to reduce the amount of light to be collected, the gap 5 between the louver blades 1 is reduced by increasing the rotation angle θ so that light entering the room through the gap 5 is reduced. The rotation angle θ is changed within a range where the direct sunlight 61 does not enter the room 7 through the gap 5 formed therebetween.

In this embodiment, the reflected light 62
Louver blades 1
While the longer longer a manner and the width W ₃ of the diffusing unit 3 a blade width W of, and improves the condensing effect shielding portion outer surface 4b of the louver blade 1 as curved such as a concave arc shape. That is, as shown in FIG. 3A, in the case where the blade width W of the louver blade 1 is long and the width W ₃ of the diffusion portion ₃ is long, the blade width of the louver blade 1 as shown in FIG. Compared to the case where the width W ′ is short and the width W ₃ ′ of the diffusion portion 3 is short, the rotation angle θ ₁ of the louver blade 1 for increasing the amount of collected light while preventing the direct sunlight 61 from entering the room 7 is reduced. It can be made smaller. That is, in the configuration shown in FIG. 3B, the rotation angle θ ₂ of the louver blade 1 is large and most of the direct sunlight 61 hitting the outer surface 4a of the light shielding portion is reflected to the outdoor 8. In the embodiment shown in FIG. 3A, the width W ₃ of the diffusion portion 3 is large, and the rotation of the louver blade 1 for increasing the amount of light to be collected while preventing direct sunlight 61 from entering the room 7. Since the angle θ ₁ can be small,
Most of the direct sunlight 61 is reflected by the outer surface 4a of the light-shielding portion, and much of the reflected light 62 is further reflected by the inner surface 4b of the light-shielding portion of the louver blade 1 adjacent to the lower side, and can be guided to the room 7. In the present embodiment, as shown in FIG. 1, the width W ₃ of the diffusion portion ₃ is substantially half of the width W ₄ of the light shielding portion 4. Then, the outer surface 4 of the light shielding portion of the louver blade 1
When a is an arc-shaped concave portion, the direct sunlight 61 hitting the outer surface 4a of the light-shielding portion can be reflected as much as possible on the inner surface 4b of the light-shielding portion of the adjacent louver blade 1 and made incident on the room 7.

By providing the louver 2 configured as described above in the window, the direct sunlight 61 can be diffused by the diffusing portion 3 at the lower end of the louver blade 1 and the diffused light 63 can be taken into the room 7, and the louver blade 1 can be introduced. 1 light-shielding part outer surface 4
a, the direct sunlight 61 is reflected, and the reflected light 62 is further reflected by the light-shielding portion inner surface 4b of the louver blade 1 adjacent to the lower side and taken into the room 7, whereby indirect light such as the reflected light 62 and the diffused light 63 is generated. It is possible to take in soft light that is not too dazzling and not too dark into the room 7, and it is possible not only to switch between shading and lighting, but also to set the rotation angle θ within a settable range. , The user can adjust the amount of collected light so that the interior 7 has the desired brightness.

In this embodiment, the diffusing portion 3 is provided at the lower end of the louver blade 1, but the diffusing portion 3 is provided at the upper end of the louver blade 1 as shown in FIG.
As shown in (1), the diffuser 3 may be provided at both the upper end and the lower end of the louver blade 1.

Further, although not shown, a single plate-shaped moving body is connected to a longitudinal end of each louver blade 1 and a driving section of driving means such as an electric motor via a crank-shaped member or the like. Alternatively, the louver blades 1 may be rotated in association with each other by rotating a drive unit of a drive unit such as an electric motor.

[0019]

As described above, according to the first aspect of the present invention, in a louver in which a plurality of plate-shaped louver blades are rotated to block light and collect light, the entire surface of the plate-shaped louver blades is used. A diffusion part for diffusing light is provided in a part of the light diffusion part, and a part other than the diffusion part is a light shielding part that does not transmit light.When each louver blade is rotated to shield light, the diffusion part of each louver blade is adjacent. The louver blade overlaps with the light-shielding portion of the louver blade, so that the direct sunlight can be reflected on the outer surface of the light-shielding portion of the louver blade, and the reflected light can be further reflected on the inner surface of the light-shielding portion of the adjacent louver blade to be taken into the room. The diffuser provided on the blades diffuses direct sunlight, and the diffused light can be taken into the room, and indirect light such as reflected light and diffused light can be taken in. It is possible to take in uninterrupted soft light into the room.In addition to switching between shading and daylighting, by changing the rotation angle of the louver blade arbitrarily within a settable range, the room will have the desired brightness. Thus, the user can adjust the amount of light collected.

According to the second aspect of the present invention, there is provided a louver for shading and lighting by rotating a plurality of plate-shaped louver blades, the light being diffused to an upper end portion of the plate-shaped louver blade. In addition to providing a portion, a portion other than the diffusion portion of the plate-shaped louver blade is a light blocking portion that does not transmit light, and when each louver blade is rotated to shield light, the diffusion portion of each louver blade is adjacent to the louver blade. The light-shielding portion of the louver blades reflects the direct sunlight on the outer surface of the light-shielding portions of the louver blades, and further reflects the reflected light on the inner surface of the light-shielding portions of the adjacent louver blades to be taken into the room. The diffuser provided in the part diffuses direct sunlight, and the diffused light can be taken into the room, and indirect light such as reflected light and diffused light can be taken in. It is possible to take in only soft light into the room.In addition to switching between shading and daylighting, by changing the rotation angle of the louver blade arbitrarily within a settable range, the room can have the desired brightness. Thus, the user can adjust the amount of light to be collected.

According to the third aspect of the present invention, there is provided a louver for shading and lighting by rotating a plurality of plate-shaped louver blades, the light being diffused to a lower end portion of the plate-shaped louver blade. In addition to providing a portion, a portion other than the diffusion portion of the plate-shaped louver blade is a light blocking portion that does not transmit light, and when each louver blade is rotated to shield light, the diffusion portion of each louver blade is adjacent to the louver blade. The light-shielding portion of the louver blades reflects the direct sunlight on the outer surface of the light-shielding portion of the louver blade, and further reflects the reflected light on the inner surface of the light-shielding portion of the adjacent louver blade to be taken into the room. The diffuser provided in the part diffuses direct sunlight, and the diffused light can be taken into the room, and indirect light such as reflected light and diffused light can be taken in. It is possible to take in only soft light into the room.In addition to switching between shading and daylighting, by changing the rotation angle of the louver blade arbitrarily within a settable range, the room can have the desired brightness. Thus, the user can adjust the amount of light to be collected.

According to a fourth aspect of the present invention, in a louver for shading and lighting by rotating a plurality of plate-shaped louver blades, light is applied to upper and lower ends of the plate-shaped louver blades. In addition to providing a diffusing portion for diffusing, a portion other than the diffusing portion of the plate-like louver blade is a light blocking portion that does not transmit light, and when each louver blade is rotated to block light, the diffusing portion of each louver blade is adjacent. The louver blade overlaps the light-shielding portion of the louver blade, so that the direct sunlight can be reflected on the outer surface of the light-shielding portion of the louver blade, and the reflected light can be further reflected on the inner surface of the light-shielding portion of the adjacent louver blade to be taken into the room. The diffuser provided at the upper end and lower end of the blade diffuses direct sunlight and takes the diffused light into the room, or transmits through the diffuser provided at the upper end of the louver blade and further adjoins the louver. Light transmitted through the diffuser provided at the lower end of the blade can be taken in, and indirect light such as reflected light, diffused light, and double diffused light can be taken in. It is possible to take in softer light that is not too dark into the room.In addition to switching between shading and lighting, it is also possible to change the rotation angle of the louver blade arbitrarily within a settable range to make the room a favorite. This allows the user to adjust the amount of light to be taken so as to achieve brightness.

According to a fifth aspect of the present invention, in addition to the effects of the first to fourth aspects of the present invention, the width of the diffusing portion in a direction perpendicular to the rotation axis of the louver blade is set in the direction. Approximately half or more of the width of the light-shielding part of, but with a simple configuration, direct sunlight from the window does not shine into the room so that soft light that is not too dazzling and not too dark efficiently into the room The light can be taken in, and the amount of light taken into the room can be adjusted according to the user's preference.

[Brief description of the drawings]

FIG. 1 shows louver blades in a louver according to an embodiment of the present invention, wherein (a) is a perspective view, (b) is a front view, and (c) is a cross-sectional view.

FIG. 2 is an explanatory diagram of adjustment of a light-collecting amount in a window provided with a louver according to the embodiment.

3A and 3B are explanatory diagrams illustrating differences in the amount of collected light due to differences in the blade width and shape of the louver blade. FIG. 3A illustrates a lighting state of a louver blade having a long blade width and a light-shielding portion width and having an arc shape. FIG. 6B is an explanatory view showing a lighting state of a louver blade having a short blade width and a short light-shielding portion width and having a linear shape.

FIG. 4 is an explanatory diagram illustrating a light blocking state by a louver.

FIG. 5 is a sectional view of another embodiment of the present invention.

FIG. 6 is a sectional view of still another embodiment of the present invention.

FIG. 7 is a perspective view of a conventional louver.

8A and 8B are explanatory diagrams illustrating a problem of a conventional louver, wherein FIG. 8A is an explanatory diagram when lighting is performed, and FIG. 8B is an explanatory diagram when light is shielded.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Louver blade 2 Louver 3 Diffusing part 4 Shading part

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshihiro Tanaka 1048 Kadoma Kadoma, Osaka Prefecture Inside Matsushita Electric Works, Ltd.

Claims (5)

[Claims] 1. A louver for shading and collecting light by rotating a plurality of plate-shaped louver blades, wherein a diffusion portion for diffusing light is provided on a part of the entire surface of the plate-shaped louver blade, and a diffusion portion other than the diffusion portion is provided. A louver, characterized in that a portion is a light-shielding portion that does not transmit light, and when each louver blade is rotated to shield light, a diffusion portion of each louver blade overlaps a light-shielding portion of an adjacent louver blade. 2. A louver for shading and collecting light by rotating a plurality of plate-shaped louver blades, wherein a diffusion portion for diffusing light is provided at an upper end portion of the plate-shaped louver blades, and the plate-shaped louver blades are provided. When the louver blades are rotated to shield light, the diffusion portion of each louver blade overlaps with the light shielding portion of the adjacent louver blade. A louver to be characterized. 3. A louver for shading and collecting light by rotating a plurality of plate-shaped louver blades, wherein a diffusion portion for diffusing light is provided at a lower end portion of the plate-shaped louver blades, and the plate-shaped louver blades are provided. When the louver blades are rotated to shield light, the diffusion portion of each louver blade overlaps with the light shielding portion of the adjacent louver blade. A louver to be characterized. 4. A louver for shading and lighting by rotating a plurality of plate-shaped louver blades, wherein a diffusion portion for diffusing light is provided at an upper end and a lower end of the plate-shaped louver blade. When the louver blades are rotated to shield light, the diffusion portions of the louver blades overlap with the light shielding portions of the adjacent louver blades. A louver characterized by being formed. 5. The illuminating device according to claim 1, wherein the width of the diffusion portion in a direction orthogonal to the rotation axis of the louver blade is substantially half or equal to the width of the light shielding portion in the direction. louver.