JPH05141156A - Daylighting device - Google Patents

Abstract

PURPOSE:To secure an effective daylighting without requiring a large-scaled device or the like even in a house with northern aspect poor in daylightingness. CONSTITUTION:Plural sheets of reflecting plates 4, formed into a laterally long shape at regular intervals in the vertical direction, are set up inward a frame body 3 attached to the outer frame of a window 2 of a building, while there is provided an angle variable means which freely varies a vertical elevation angle of the reflecting plates 4, thereby constituting a daylighting device 1. With this constitution, a light at the outside of the window is reflected to these reflecting plates 4 and taken into a room.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a daylighting device capable of obtaining very good daylighting even in a room on the north side where the lighting conditions are not good due to the location of the building and the atmosphere is dark and damp. Regarding

[0002]

2. Description of the Related Art In the north part of a building, direct sunlight from the sun does not enter the shadow of the building itself throughout the year. Therefore, rooms facing north face poor heating efficiency in winter. Not only there is a risk of condensation and dew condensation, but it also has a damp atmosphere that requires lighting even during the daytime, making people gloomy and never forming a good living environment in the building. It never happened.

[0003]

In urban areas where originally the living environment is not good, it is often not possible to form a window facing south with excellent lighting, and in this case the resident There was no way to improve such a dark and inconvenient living environment. In addition, although there are some devices and equipment such as providing reflection plate bodies at multiple places to guide reflected light from a distance or introducing outside light into the room using a thick optical fiber, Since such devices and equipment are expensive and large-scale, not everyone can use them easily without taking up space.

In view of the above, according to the present invention, even if a north-facing window having poor daylighting properties is used, it is possible to obtain daylighting extremely efficiently without requiring expensive and large-scale devices and equipment. It is an object of the present invention to provide an excellent daylighting device that does not.

[0005]

In order to achieve the above-mentioned object, a daylighting device of the present invention comprises a reflector for reflecting light outside the window,
Angle varying means arranged at both ends of the reflecting plate to change the elevation angle of the reflecting plate in the vertical direction to introduce light outside the window into the room, and the reflecting plate and the angle varying means are held and installed outside the window frame of the building It is characterized by comprising a frame body.

Further, the reflecting plate may have a laterally elongated shape, and a plurality of reflecting plates may be arranged side by side at intervals in the vertical direction, or the reflecting plate may have a convex shape having a central axis in the lateral direction. It is a thing.

[0007]

[Function] The reflector for reflecting the light outside the window and the angle varying means for introducing the light outside the window into the room by changing the elevation angle of the reflector are installed outside the window frame by the frame body. , The bright light from the sky is reflected by the reflection plate and taken into the room to obtain excellent lighting, and by changing the angle of the reflection plate, it is possible to freely and easily obtain the desired brightness. ..

The reflector has a laterally elongated shape, and by arranging a plurality of the reflectors side by side at intervals in the vertical direction, the reflected light substantially equivalent to the reflected light by the large-diameter reflector is extremely thin. It is possible to obtain the reflection angle of the reflected light by changing the elevation angle of each reflection plate little by little.

By forming the reflecting plate into a convex shape having a central axis in the lateral direction, the reflected light is emitted at a wide angle without being focused.

[0010]

1 is a perspective view showing an embodiment of a daylighting device of the present invention, and FIG. 2 is a sectional view showing an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a daylighting device of the present invention, which has a frame body 3 attached to the outer frame of a window 2 of a building, and a laterally elongated shape held by the frame body 3 in the vertical direction. A plurality of (five in the present embodiment) reflectors 4 arranged in parallel with each other, and angle varying means (not shown) for freely changing the elevation angle of the reflectors 4 in the vertical direction. It consists of

The reflecting plate 4 has a mirror-finished surface or a white surface to reflect light well and may have a flat shape. However, when it has a convex shape having a central axis in the lateral direction, the reflected light is It is possible to obtain a soft reflected light that is close to natural light radiated at a wide angle without the risk of converging and locally brightening or causing a high temperature and causing a fire.

As the angle varying means, one end of each end of the reflecting plate 4 is rotatably supported, and the other end is pushed to change the elevation angle of the reflecting plate 4 in the vertical direction, or a ladder. A known material such as a string may be used.

Further, in the case where the plurality of reflectors 4 are not arranged in parallel and the angle is changed little by little in the scattering direction of the reflected light, the light reflected by the plurality of reflectors 4 is changed. Is incident on the window at a wide angle through the window 2 and the entire room is brightened.

FIG. 3 shows another embodiment of the present invention, in which the reflector 4 of the daylighting device 1 is constituted by one sheet, and although the influence of the wind is greater than that of the above-mentioned embodiment, the reflection The angle varying means for changing the elevation angle of the plate 4 in the vertical direction can be made into a simple structure, which is advantageous in that substantially the same effect can be obtained with a simple structure as a whole.

In the above-mentioned two embodiments, the daylighting device 1 can be used as a rain door or a crime prevention door by operating the angle varying means to completely cover the window 2 with the reflection plate 4. It is possible.

Further, the plurality of reflectors 4 in the first embodiment described above are collectively housed either above or below the frame 3, or the reflectors 4 in the second embodiment are tilted below the window 2. It is possible to prevent the use of the opening of the window 2 from being hindered by arranging the window.

[0018]

As described above in detail, according to the daylighting device of the present invention, the reflector which reflects the light outside the window and the vertical angle of elevation of the reflector are changed to introduce the light outside the window into the room. By installing the angle changing means with the frame outside the window frame, the bright light from the sky is reflected by the reflector and taken into the room without the need for expensive and large-scale equipment and facilities, and excellent lighting is provided. It is possible to obtain the desired brightness and freely obtain the desired brightness by changing the angle of the reflection plate.

Further, in the case where the reflecting plate has a laterally elongated shape and a plurality of the reflecting plates are arranged side by side at intervals in the vertical direction, it is substantially equivalent to the light reflected by the large-diameter reflecting plate. The reflected light can be obtained with a very thin reflector, and the emission angle of the reflected light can be freely changed by slightly changing the elevation angle of each reflector. Therefore,
Even if there is a small gap with the neighboring house on the north side, which is often the case in urban areas, extremely good lighting can be obtained in the room on the north side.

Further, when the reflecting plate is formed in a convex shape having a central axis in the lateral direction, the reflected light is not focused and there is no possibility of becoming locally bright or having a high temperature and causing a fire.
It is possible to obtain a softer reflected light that is close to natural light emitted at a wide angle.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a daylighting device of the present invention.

FIG. 2 is a sectional view showing an embodiment of a daylighting device of the present invention.

FIG. 3 is a sectional view showing another embodiment of the daylighting device of the present invention.

[Explanation of symbols]

 1 Daylighting device 2 Window 3 Frame 4 Reflector

Claims (3)

[Claims] 1. Reflecting plates for reflecting light outside the window; angle varying means disposed at both ends of the reflecting plate for changing the elevation angle of the reflecting plate in the vertical direction and introducing the light outside the window into the room; A daylighting device comprising a frame body that holds an angle varying means and is installed outside a window frame of a building. 2. The daylighting device according to claim 1, wherein a plurality of reflectors are formed in a laterally elongated shape and are arranged side by side at intervals in a vertical direction. 3. The daylighting device according to claim 1, wherein the reflecting plate has a convex shape having a central axis in the lateral direction.