JP2000306406A - Lighting system for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To introduce daylight into inner circumferential parts of a building and into a building incapable of being lighted. SOLUTION: Horizontal light shafts 4 as passages guiding outdoor light into a building are provided in spaces in the ceilings within the building, opening parts 5 for daylight are provided in outer walls facing the horizontal light shafts 4, and incoming members 6 causing outdoor light to come into the horizontal light shafts 4 are provided so that their elevation-angles can be adjusted. For use as the incoming members 6, flat plate-shaped reflectors are installed in the form of an outward tilting window or flat plate-built prisms are installed in the form of a projecting window. A drive device is provided for vertically turning each incoming member to adjust its elevation angle corresponding to the height of the sun. Outgoing members 14 are provided for causing the outdoor light coming into the horizontal light shafts 4 to go out into the building. The horizontal light shafts 4 also serve as ventilation shafts and the incoming members 6 also serve as windows capable of opening/closing the opening parts 5 for daylight.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for extracting outdoor light into a building, and more particularly to a device for incorporating solar radiation.

[0002]

2. Description of the Related Art Lighting of outdoor light into a building, particularly taking in sunlight is mainly performed by windows provided on an outer wall.
Although it is possible to sufficiently light the outer part near the window,
Sufficient lighting cannot be provided to the inner periphery far from the window. There is a top light as a lighting method for the inner circumference of the building,
Toplights can only be installed if the room to be lit is below the roof (and therefore only the top floor in a typical multi-story building)
In addition, the roof surface is limited to a form and a structure in which a top light can be installed, and is not widely and generally applicable.

[0003]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention provides a daylighting device that can effectively perform daylighting even on the inner periphery of a building or a building where daylighting cannot be performed sufficiently. The purpose is to provide.

[0004]

According to the first aspect of the present invention, an optical horizontal shaft that guides outdoor light into a building is provided in a space above a ceiling in a building, and an outer wall facing the optical horizontal shaft is provided on the outer wall. A lighting opening is provided, and an incident member for allowing outdoor light to enter the light horizontal shaft substantially horizontally is provided in the lighting opening so as to be adjustable in elevation angle.

According to a second aspect of the present invention, the incident member is installed in the form of an overturned window whose lower part is rotatably supported, and reflects the outside light on the inner surface thereof to enter the light horizontal shaft. It is characterized by being a flat reflecting mirror.

According to a third aspect of the present invention, the incident member is provided in the form of a protruding window whose upper part is rotatably supported, and refracts and transmits outdoor light so as to be incident on the light horizontal shaft. It is a flat prism.

According to a fourth aspect of the present invention, there is provided a driving device for rotating the incident member vertically in accordance with the altitude of the sun to adjust the elevation angle thereof.

According to a fifth aspect of the present invention, an emission member for emitting the outdoor light made incident by the incident member into the building is provided in the light horizontal shaft.

The invention according to claim 6 is characterized in that the light horizontal shaft also functions as a ventilation shaft, and the incident member also functions as a window capable of opening and closing the lighting opening.

[0010]

1 to 4 show an embodiment of the present invention. The daylighting device of the present embodiment is for a multi-dwelling building, and is a terrace 2 in a dwelling unit 1 as shown in FIG. 2A or a corridor 3 between two dwelling units 1 as shown in FIG. For collecting outdoor light, especially sunlight.

In the lighting device of this embodiment, a light horizontal shaft 4 is provided in the space above the ceiling of each floor as a path for guiding outdoor light into the building, and the outer walls on both sides facing the light horizontal shaft 4 are used for lighting. An opening 5 is provided, and in the lighting opening 5, an incident member 6 for allowing sunlight to enter the light horizontal shaft 4.
Is provided.

As shown in FIG. 3, the incident member 6 is a flat reflecting mirror for reflecting sunlight on the inner surface thereof. The incident member 6 is attached to a sash (window frame), which is a normal fitting, and its lower portion is turned. It is installed in the form of an overturned window that is pivotally supported. The incident member 6 is, for example, as shown in FIG.
And the elevation angle is adjusted optimally every moment according to the sun altitude, so that the sunlight is always substantially horizontal from the lighting opening 5 to the light horizontal shaft 4. It can be made to be incident.

The driving device 7 shown in FIG. 4 has a configuration in which a push-pull chain 10 is pushed and pulled by a motor 8 via a connecting shaft 9, whereby the incident member 6 is turned up and down. It is configured to automatically operate according to a preset program in accordance with the solar altitude data for each time and time, and to automatically control the incident member 6 so that it always has an appropriate elevation angle. The adjustment of the inclination angle of the incident member 6 by the driving device 7 detects, for example, the number of rotations and the rotation time of the connecting shaft 9, the stroke of the push-pull chain 10, the inclination angle of the incident member 6, and the like by various sensors and limit switches. By doing so, it can be performed with high accuracy. In FIG. 4, reference numeral 11 denotes a sensor for detecting rotation of the connection shaft 9, and reference numeral 12 denotes a sequencer for controlling a motor based on the sensor. In addition, when the incident member 6 is set up at the time of non-use at night or the like to control the lighting member 5 to be closed, dirt on the surface of the incident member 6 and a decrease in the incident efficiency can be suppressed.

As shown in FIGS. 1 and 2, the ceiling surface 13 of the terrace 2 or the central corridor 3 is formed of a glass plate, a louver or the like so as to be capable of transmitting light. An emission member 14 is provided in the shaft 4. A reflecting mirror similar to the incident member 6 is used as the emitting member 14, and the light incident on the light horizontal shaft 4 is reflected downward by the emitting member 14 and passes through the ceiling surface 13 to the terrace 2 or the central corridor 3. Are emitted. If a device such as a chandelier is attached to the ceiling surface 13 and the light is emitted or guided to the device by the emission member 14, the device can function as if it were a lighting device. it can.

It is desirable that the inner surface of the optical horizontal shaft 4 has high light reflectivity. For this purpose, it is desirable to increase the light reflectivity by applying a white paint or attaching a light reflection film or a glossy metal plate. . When a deck plate is provided on the lower surface of the upper floor slab facing the light horizontal shaft 4, if the surface is electro-galvanized, it can have light reflectivity by itself. In addition, when glass wool for heat insulation or sound insulation is installed on the upper surface of the ceiling plate, light reflectivity can be provided by an aluminum foil sandwich vinyl film on the surface. Further, in the case where a waterproof sheet is provided in the space above the ceiling in case of an emergency water leak from the upper floor, it is conceivable to attach an aluminum foil or the like to the waterproof sheet to have light reflectivity. When the light reflectance of the inner surface of the light horizontal shaft 4 is increased in such a manner, the light made incident by the incident member 6 is diffused throughout the light horizontal shaft 4 while being reflected, so that the entire inside is brightly illuminated. If a light-transmitting material is provided facing the horizontal shaft 4, the light-emitting material itself naturally shines as if it were a light ceiling. In such a case, even if the emission member 14 as described above is omitted, Light can be taken into the room from the light horizontal shaft 4.

Furthermore, it is also possible to perform natural ventilation in the building by using the above-mentioned light horizontal shaft 4. That is, if a ventilation opening communicating with the light horizontal shaft 4 is provided on the ceiling surface of the building, when the incident member 6 is opened, room air flows from the ventilation opening through the light horizontal shaft 4 to the lighting opening 5. A natural ventilation path is formed such that the air is discharged from the outside to the outside or the outside air flows into the building through the reverse path, whereby the space inside the building and the space above the ceiling can be efficiently ventilated. In this case, the light horizontal shaft 4 also functions as a ventilation shaft, the lighting opening 5 also functions as a ventilation opening, and the incident member 6 also functions as a window that opens and closes it. Because it is effective in reducing the cooling load and is ventilated through the space above the ceiling, compared to direct ventilation with the indoor windows open, ventilation of high-temperature air that stays near the ceiling This is advantageous in preventing intrusion of external noise and external noise.

By installing the above daylighting device in a building, it becomes possible to perform sufficient daylighting even in a building interior space where natural daylighting was impossible, and it is possible to obtain a favorable environment. In particular, by changing the elevation angle of the incident member 6 according to the solar altitude, the solar radiation is always
Can be guided to. Also, as shown in FIG. 1, by taking light from both sides of the building, it is possible to take light from the other even if the sun moves and one becomes a shadow, regardless of the orientation of the building. Daylighting is always possible.

The above daylighting device has a simple configuration in which a simple reflecting mirror is used as the incident member 6 and the exit member 14 and a driving device 7 for adjusting the elevation angle of the incident member 6 is provided. Since a power source other than the driving device 7 is not required, much equipment cost and operating cost are not required. Further, since the incident member 6 can be installed in a sash and installed in the form of a normal falling window, the building can be installed. It does not limit or impair the appearance, and there is no design problem in installing it.

FIG. 5 shows an example in which the daylighting device of the above embodiment is applied to a building under an elevated track. In this building, an optical horizontal shaft 4 is provided in the space above the ceiling on the top floor, sunlight is made incident on the optical horizontal shaft 4 by the incident member 6, and the light is emitted from the optical horizontal shaft 4 to the light field 16 in the building by the emission member 14. It is like that. In addition, a part of the outdoor light collected by the incident member 6 is reflected by reflecting means 17 and 18 such as reflecting mirrors, for example, and guided to various parts of the dwelling unit (in the illustrated example, a maisonette type dwelling unit).
As described above, according to the lighting device described above, it is possible to collect light even in a building in which lighting cannot be expected at all. For example, if there is a dry area, the lighting device can be applied to an underground building.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes as listed below are possible.

The incident member 6 is not limited to the above-mentioned reflecting mirror, but may be a flat prism that refracts and transmits outdoor light as shown in FIG. By installing it in the form of a protruding window,
Outdoor light can be horizontally incident on the light horizontal shaft 4. The incident member 6 composed of such a prism is suitable when the solar altitude is relatively low, such as when it is installed on the northeast, northwest, or north side. Conversely, when the solar altitude is relatively high, it is preferable to use the reflecting mirror of the above embodiment shown in FIG. Further, the same prism as described above can be used as the light emitting member 14.

The drive device 7 may be any device that can raise and lower the incident member 6 so as to have a desired elevation angle. In addition to the drive device shown in FIG. , A power transmission mechanism using a sprocket and a chain or a gear train, etc., can be arbitrarily adopted, and a manual operation can be performed if necessary, or even a manual operation alone can be used. good.

It is conceivable that the driving device 7 performs finer control in accordance with the weather and the use condition in the building, in addition to the automatic control by the preset program as described above. A timer and various sensors (light sensor, rain sensor, wind sensor, temperature sensor, room sensor, etc.) may be provided. Further, as a disaster prevention measure, a configuration in which the incident member 6 is forcibly closed in conjunction with a fire detector or a smoke detector is conceivable, and the same applies to a case where a fire prevention damper is provided at an important part of the optical horizontal shaft 4. Good.

It is preferable that the optical horizontal shaft 4 also serves as a ventilation shaft as in the above embodiment.
It is not impossible to make the lighting opening 5 function as a smoke outlet by also serving as a smoke exhaust shaft in case of fire.
The optical horizontal shaft 4 does not hinder the use as a normal space behind the ceiling, for example, the use as an installation space for ducts and pipes as long as it does not hinder lighting. Of course, the light horizontal shaft 4 may be reserved for exclusive use in daylighting. In this case, the light-receiving opening 5 is always closed in a state where daylighting is possible by providing a glass window inside the incident member 6 or the like. You can keep it. Instead of using the space behind the ceiling itself as the optical horizontal shaft 4 as in the above embodiment, it is also possible to install a duct as the light horizontal shaft 4 in the space above the ceiling and light through the duct. Further, the lighting opening 5 may be of a continuous window type that is continuous in the horizontal direction or may be an independent window, or a vertical reflector may be provided on both sides of the lighting opening 5 in the width direction. It is also conceivable that the lighting efficiency to the light horizontal shaft 4 is increased.

It is not impossible to configure the incident member 6 not only to rotate in the vertical direction to adjust the elevation angle as in the above embodiment, but also to rotate in the horizontal direction by tracking the sun. However, in the case of such a configuration, a mechanism for horizontally rotating the incident member 6 and a control mechanism for sun tracking are required, so that complication and cost increase are avoided as compared with the above embodiment. And it also affects the appearance of the building, so only if those conditions are met.

It is needless to say that the daylighting device of the present invention can be widely applied regardless of the size, form, and use of the building. By sharing the space with the entire building and fully utilizing it, it is possible to effectively perform daylighting on the entire building.

[0027]

According to the first aspect of the present invention, a light horizontal shaft which guides outdoor light into a building is provided in a space above a ceiling in a building, and an opening for lighting is formed in an outer wall facing the light horizontal shaft. The lighting opening is provided with an incident member that allows outdoor light to enter the light horizontal shaft substantially horizontally so that the elevation angle can be adjusted, so that the outdoor light passes from the lighting opening to the light horizontal shaft. By allowing the light to enter and emit the light into the building, it becomes possible to collect outdoor light even in a building far from the outer wall or in a building in which lighting cannot be normally expected.

According to the second aspect of the present invention, since a flat reflecting mirror in the form of an inverted window is used as the incident member, outdoor light can be reliably and efficiently made incident on the horizontal optical shaft, and the appearance is improved. Since it is the same as a normal window, it does not impair the appearance of the building, and when not in use, standing up with the window closed can prevent dirt on the inner surface and a decrease in reflection efficiency.

According to the third aspect of the present invention, since a flat prism in the form of a protruding window is used as the incident member, the outdoor light can be surely and efficiently incident on the horizontal optical shaft, and the external appearance is usually reduced. The appearance of the building is not impaired because it is the same as that of the window. When the window is not used, the window is kept closed to prevent dirt and a decrease in reflection efficiency.

According to the fourth aspect of the present invention, the elevation angle of the incident member can be adjusted by rotating the incident member by the driving device. Therefore, it is possible to always adjust the elevation angle in accordance with the altitude of the sun and always perform optimal lighting.

According to the fifth aspect of the present invention, since the light emitting member is provided for emitting the outdoor light having entered the light horizontal shaft into the building, the light can be reliably and efficiently emitted from the light horizontal shaft into the building. .

According to the sixth aspect of the present invention, since the light horizontal shaft also functions as a ventilation shaft and the incident member also functions as a window which can be opened and closed, not only lighting but also ventilation can be efficiently performed, and It can fully contribute to improving the performance and saving energy.

[Brief description of the drawings]

FIG. 1 is an elevation view showing an example of a building employing a daylighting device according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a plan of the same building.

FIG. 3 is a diagram showing an example of an incident member in the daylighting device.

FIG. 4 is a diagram showing an example of a driving device in the lighting device.

FIG. 5 is an elevation view showing an example in which the lighting device is applied to a building under an elevated track.

FIG. 6 is a diagram showing another example of the incident member in the daylighting device.

[Explanation of symbols]

 Reference Signs List 4 light horizontal shaft 5 daylighting opening 6 entrance member 7 driving device 13 ceiling surface 14 exit member

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takeki Kumagai 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Hideyo Shiokawa 1-2-3 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Kenji Suzuki 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Katsuezawa 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation ( 72) Inventor Toshiyuki Ishikawa 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Toru Okochi 1-3-2 Shiba-Daimon, Minato-ku, Tokyo Oiles Industry Co., Ltd. (72) Invention Person Takeshi Matsumoto 68, Kamioshida, Narumi-cho, Midori-ku, Nagoya-shi, Aichi

Claims (6)

[Claims] 1. A light horizontal shaft, which serves as a path for guiding outdoor light into a building, is provided in a space above the ceiling in the building, and an opening for lighting is provided on an outer wall facing the horizontal light shaft. A lighting device for a building, characterized in that a light-entering member that allows outdoor light to be incident on the light horizontal shaft substantially horizontally is provided at the portion so that the elevation angle can be adjusted. 2. A flat reflecting mirror, wherein the incident member is installed in the form of an inverted window whose lower part is rotatably supported, and reflects outdoor light on its inner surface to enter the light horizontal shaft. The lighting device for a building according to claim 1, wherein: 3. The incident member is a flat prism that is installed in the form of a protruding window whose upper part is rotatably supported, and that refracts and transmits outdoor light to enter the light horizontal shaft. 2. The method according to claim 1, wherein
The lighting device of the building as described. 4. The lighting of a building according to claim 1, further comprising a driving device for adjusting the elevation angle by rotating the incident member vertically according to the sun altitude. apparatus. 5. The light horizontal shaft according to claim 1, further comprising an emission member for emitting the outdoor light made incident by the incident member into the building. Lighting equipment for buildings. 6. The light horizontal shaft also serves as a ventilation shaft, and the incident member also serves as a window capable of opening and closing the lighting opening.
The lighting device of a building according to 4, or 5.