JP3281330B2 - Daylight utilization system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light shelf mounted outside an opening (particularly, a window) of a building;
The present invention relates to a daylight utilization system including a blind attached to the indoor side of the opening.

[0002]

2. Description of the Related Art A light shelf is one of the reflective indirect lighting means for reflecting sunlight and taking it into a room. FIG.
As shown in this figure, this light shelf 1 is
It is mounted horizontally on the outside of the room, takes in sunlight reflected on the upper surface 1a from the window 3, and irradiates the ceiling surface 7 of the room 5 as indirect illumination light. If such a light shelf 1 is used, sunlight can be effectively used as lighting,
The power load of indoor lighting can be reduced.

On the other hand, on the indoor side of the window section 3, a blind 9 for blocking direct sunlight is attached. The blind 9 has a plurality of slats 11 that are vertically arranged at intervals. These slats 11 are supported by a rail-shaped housing 13 attached to the ceiling. Rail-shaped housing 1
The slat 3 includes a slat elevating mechanism for raising and lowering the slat 11 and a slat angle changing mechanism for changing the inclination angle of the slat 11. By providing such a blind 9, radiant heat due to sunlight can be shielded and the cooling load can be reduced.

[0004]

However, when the conventional light shelf and the blind are used in combination, the slats of the entire blind are adjusted to the same angle. Adjusting the slats has a problem of lowering the visual environment of the resident of the lower window B. Conversely, if the slats are adjusted at an angle of inclination that gives priority to the visual environment of the lower window B, direct sunlight will enter the room and daylight from the light shelf will be blocked. The present invention has been made in view of the above circumstances, and provides a daylight utilization system capable of optimally shading direct sunlight and capturing reflected light without obstructing a viewing environment from a resident's lower window. Aim.

[0005]

According to the first aspect of the present invention, there is provided a daylight utilization system according to the present invention, which is provided outside a window of a building at a substantially intermediate position in a height direction of the window. It is attached almost horizontally across the frontage of the window and has a T-shaped cross section.
Plural shelves are arranged side by side with a slit in the vertical direction of the window surface.
And a light shelf that receives sunlight reflected on the upper surface from the window portion and irradiates the ceiling surface of the room as indirect illumination light, and a plurality of slats that are vertically arranged at intervals. A blind mounted on the indoor side of the window and capable of independently raising and lowering the slat and changing the angle of the slat in an upper window above the light shelf and a lower window below the light shelf. And characterized in that:

In this daylight utilization system, the height of the window
A light shelf is installed at the approximate middle position, and the window
Is the upper window and the lower
And the lower window. Light shelves, up and down
The upper window is mainly used for collecting sunlight.
Also, the lower window works as a visual environment
Become. In addition, blinds are provided on the indoor side of the window,
The blinds allow the slats to be raised and lowered and the slat angles to be changed independently for the upper and lower windows .
Swelling. Therefore, when taking sunlight into a room,
Maximizes the transmittance of light reflected from the light shelf
Inclination angle (inclination angle that goes down toward the outside of the window
Degree), only the slats in the upper window are adjusted in angle.
More efficient use of sunlight and direct light
Will be blocked. That is, only reflected light from the upper window
Can be captured. At the same time, in the lower window, the upper window
The angle of the slats can be adjusted independently of
An arbitrary visual environment of the user can be set. As a result, the slats in the lower window and the slats in the upper window are optimally adjusted, and the occupants can optimally shade direct sunlight and capture reflected light without obstructing the viewing environment from the lower window of the occupant. Will be In this case, the light shelf is placed on the upper reflective surface.
While maintaining the product, suppress the incidence of direct sunlight to the lower window,
So as not sunlight and direct sunlight and then through the slit
To make the lower surface brighter,
Brighten the bottom of the light shelf, which tends to be
Therefore, the hindrance of the visual environment can be reduced.

According to a second aspect of the present invention, in the daylight utilization system, the blind is integrally formed by a single rail-shaped housing having a built-in slat elevating mechanism and a slat angle changing mechanism.

In this daylight utilization system, the blinds are integrally formed, and only one rail-shaped housing is attached to the upper part of the upper window, so that the slats in the entire height direction of the window can be controlled in elevation and angle control. become. Thereby, it is not necessary to provide the rail-shaped housing for the lower window in the height direction intermediate portion of the window, and the resident's visual environment is improved.

According to a third aspect of the present invention, in the daylight utilization system, the blind is separated into the upper window and the lower window by two rail-shaped housings each including a slat elevating mechanism and a slat angle changing mechanism. It is characterized by comprising.

In this daylight utilization system, the blind is formed separately from the upper window portion and the lower window portion, and the slats of the upper window portion and the slats of the lower window portion are independently provided in one rail-shaped housing. There is no need to provide a control mechanism, and the blind structure is simplified.

According to a fourth aspect of the present invention, there is provided a daylight utilization system comprising: an elevation drive section for driving the slat elevation mechanism of the upper window; a slat angle drive section for driving the slat angle change mechanism of the upper window; Or, an external sensor that detects outdoor illuminance, an elevation control unit that drives and controls the elevation drive unit based on the amount of solar radiation detected by the external sensor or a detected value of the outdoor illuminance, and at least the direction of the window unit and the sun input in advance. And a slat angle control unit for driving and controlling the slat angle drive unit based on position data.

In this daylight utilization system, the elevation drive unit and the slat angle drive unit are automatically driven and controlled based on data input in advance and detection values of an external sensor, and manual slat operation according to the state of sunlight can be performed. It becomes unnecessary, and the optimal daylight use efficiency and indoor light environment are always obtained.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a daylight utilization system according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram schematically showing a daylight utilization system according to the present invention, and FIG. 2 is an image diagram showing a state of blocking direct sunlight by a modified example of a light shelf.

A pair of left and right columns 23 are fixedly provided on the window 21 of the building as support members for the bracket 27 with the window 21 interposed therebetween. A horizontal bracket 27 protruding from the outer wall 25 is provided at a substantially middle portion in the vertical direction of each pillar 23. The left and right brackets 27 have a window 2
A rectangular plate-like light shelf 29 that is long in the frontage direction is supported. The light shelf 29 is disposed substantially at the center of the window 21 in the up-down direction. The window 21 in which the light shelf 29 is disposed at the center has an upper window A on the upper side and a lower window B on the lower side with the light shelf 29 interposed therebetween. The support member of the bracket 27 is not limited to the column 23, but may be any member provided that the bracket 27 protrudes from the outer wall 25.

The light shelf 29 takes in the sunlight reflected on the upper surface 29a from the window 21 and irradiates the ceiling surface 33 of the room 31 as indirect illumination light. Therefore, sunlight can be effectively used as lighting, and the power load of indoor lighting can be reduced.

The upper surface 29a of the light shelf 29 is surface-treated so as to reflect daylight efficiently. Specific examples include application of a paint for increasing the reflectance, plating treatment, and formation of a mirror-like coating.

The light shelf 29 may be translucent or non-translucent. According to the light shelf 29 having non-light-transmitting properties, high reflection efficiency can be obtained. On the other hand, a translucent light shelf 2
According to 9, the lower surface of the light shelf 29 can be brightened. As the translucent light shelf 29, for example, as shown in FIG.
Are arranged in parallel with a slit 37 interposed therebetween. With such a structure, while ensuring the reflection area of the upper surface 29a, and with respect to the lower window section B, respectively
It is possible to suppress the incidence of direct sunlight and to make it translucent by the vertical piece of the shade board 35 of the sun
Can be transmitted so as not to be) .

On the other hand, on the indoor side of the window 21, a blind 41 for blocking direct sunlight is attached. The blind 41 has a plurality of slats 43 that are vertically arranged at intervals. The slats 43 in the upper window A are
The upper surface is surface-treated to reflect daylight efficiently. Specific examples include application of a paint for increasing the reflectance, plating treatment, and formation of a mirror-like coating.

The slats 43 are supported by rail-shaped casings 45 mounted on the ceiling via support cords (not shown). The rail-shaped housing 45 has a slat 43
Slat lifting mechanism (not shown) for lifting and lowering the slats 4
A slat angle changing mechanism (not shown) for changing the inclination angle of the camera 3 is built in. That is, the blind 41 is integrally formed by a single rail-shaped casing 45 having a slat elevating mechanism and a slat angle changing mechanism.

The rail-shaped casing 45 is provided with manual operating means (not shown). By operating the operating means, the slats 43 can be moved up and down in the upper window A and the lower window B and the slats 43 can be moved up and down. The angle can be changed independently of each other.

The daylight utilization system 4 configured as described above
The operation of No. 7 will be described. When taking sunlight into a room,
The inclination angle at which the transmittance of the light reflected from the light shelf 29 is maximized (as shown in FIG.
The angle of only the slats 43 of the upper window portion A is adjusted to the inclination angle at which the inclination becomes a gradient) . As a result, the utilization efficiency of sunlight is improved, and the direct light is blocked. At the same time, in the lower window B, the slats 4 are independent of the upper window A.
The third angle adjustment becomes possible, and an arbitrary visual environment of the resident can be set. If you do not use sunlight,
It is also possible to raise the slat 43 of only the upper window A.

As described above, in the daylight utilization system described above, the lifting and lowering of the slats 43 and the changing of the angle of the slats 43 in the upper window portion A and the lower window portion B are performed independently, and the slats in the lower window portion B are changed. 43 and slat 43 of upper window part A
Are optimally adjusted, and the shielding of the direct sunlight and the capture of the reflected light are performed optimally without obstructing the viewing environment from the lower window B of the occupant. In addition, since the blind 41 is integrally formed and the rail-shaped housing for the lower window is not required to be provided at the intermediate portion in the height direction of the window 21, the visual environment of the occupant is also improved.

Next, another embodiment of the daylight utilization system according to the present invention will be described. FIG. 3 is a main part configuration diagram of another embodiment of a daylight utilization system according to the present invention, and FIG. 4 is a block diagram of a blind drive device.

In the daylight utilization system 51, an external sensor 53 for detecting the amount of sunlight or the illuminance outdoors is provided, for example, on the outer wall 25 of a building.

An elevating drive unit 57 shown in FIG. 4 for driving a slat elevating mechanism (not shown) is mechanically connected to the rail-shaped casing 55. The elevating drive unit 57 elevates the slat 43 of the upper window A. I do. In addition, a slat angle driving unit 59 that drives a slat angle changing mechanism (not shown) is mechanically connected to the rail-shaped housing 55, and the slat angle driving unit 59 changes the slat angle of the upper window A. The elevation drive unit 57 and the slat angle drive unit 59 are manually operated by the manual operation unit 61. Note that the manual operation unit 61 also allows the elevation drive unit 63 and the slat angle drive unit 65 of the lower window B to be manually operated.

An elevation control unit 67 is electrically connected to the elevation drive unit 57, and the elevation control unit 67 controls the drive of the elevation drive unit 57 based on the amount of solar radiation detected by the external sensor 53 or the detected value of the outdoor illuminance. A slat angle control unit 69 is electrically connected to the slat angle drive unit 59. The slat angle control unit 69 controls the driving of the slat angle drive unit 59 based on the data of the input data table 71 input in advance. The data input to the input data table 71 include, for example, month, day, hour, minute, building location (latitude, longitude), window azimuth, reflection characteristics of the light shelf 29, sun position, and the like. Can be

The daylight utilization system 51 according to this embodiment
Other configurations are the same as those of the daylight utilization system 47 described above.

In the daylight utilization system 51, the elevation drive unit 57 and the slat angle drive unit 59 are automatically driven by the elevation control unit 67 and the slat angle control unit 69 based on the data input in advance and the detection value of the external sensor 53. Controlled. This eliminates the need for manual slat operation according to the state of sunlight, and can always provide optimal daylight use efficiency and indoor light environment.

In the daylight use systems 47 and 51 according to the above-described embodiments, the case where the blind 41 is integrally formed by one rail-shaped housing 45 (or 55) has been described as an example. In the daylight utilization system, the blind has an upper window A by two rail-shaped housings having a built-in slat elevating mechanism and a slat angle changing mechanism.
And the lower window B may be configured separately. According to such a daylight utilization system, it is not necessary to provide a mechanism for independently adjusting the slats 43 of the upper window portion A and the lower window portion B in one rail-shaped housing, and the blind structure can be simplified. can do.

[0030]

As described above in detail, the daylight utilization system according to the first aspect of the present invention takes in sunlight reflected on the upper surface from a window portion and indirectly illuminates light on a ceiling surface in a room. The light shelf to be illuminated was attached to the outside of the window, and the blinds that can raise and lower the slats and change the angle of the slats in the upper window and the lower window independently were attached to the indoor side of the window, so sunlight was Take it indoors
The maximum light transmittance from the light shelf.
Only the upper window slat is adjusted to
Will increase the use efficiency of sunlight
Then, the direct light is blocked. That is, from the upper window
Only the reflected light can be captured. At the same time, in the lower window
Can adjust the slat angle independently of the upper window.
Thus, an arbitrary sight environment of the resident can be set. This result
As a result, it is possible to optimally perform the shielding of the direct sunlight and the capture of the reflected light without obstructing the viewing environment from the lower window of the resident. At this time, the light shelf has a reflection area on the top surface.
While suppressing the incidence of direct sunlight on the lower window, and
Sunlight is transmitted through the slit to brighten the bottom surface
Light shelves, which tend to darken
Brighten the underside, which also reduces interference with the viewing environment
Can be done.

In the daylight utilization system according to the second aspect, since the blind is integrally formed, one rail-shaped housing may be attached to the upper portion of the upper window portion, and the upper portion of the window portion may be provided at an intermediate portion in the height direction of the window portion. In addition, it is not necessary to provide a rail-shaped housing for the lower window, so that the resident's visual environment can be improved.

In the daylight utilization system according to the third aspect, since the blind is formed separately from the upper window and the lower window, the blind structure can be simplified.

In the daylight utilization system according to the fourth aspect, the elevation control unit and the slat angle control unit drive and control the elevation drive unit and the slat angle drive unit based on the data input in advance and the detection value of the external sensor. Therefore, the optimum daylight use efficiency and indoor light environment can always be obtained.

[Brief description of the drawings]

FIG. 1 is a configuration diagram schematically illustrating a daylight utilization system according to the present invention.

FIG. 2 is an image diagram showing a state of blocking direct sunlight according to a modified example of the light shelf.

FIG. 3 is a main part configuration diagram of another embodiment of a daylight utilization system according to the present invention.

FIG. 4 is a block diagram of a blind driving device.

FIG. 5 is a configuration diagram schematically showing a conventional daylight utilization system.

[Explanation of symbols]

21: window, 29: light shelf, 31: indoor, 33
... ceiling surface, 41 ... blinds, 43 ... slats, 45,
55: rail-shaped housing, 47, 51: daylight utilization system,
53: external sensor, 57: elevating drive unit, 59: slat angle drive unit, 67: elevating control unit, 69: slat angle control unit

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hideki Ishii 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Kiyofumi Ohashi 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (56) References JP-A-10-12019 (JP, A) JP-A-10-159465 (JP, A) JP 6-28187 (JP, U) JP 6-65598 ( (JP, U) J. 36-6245 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04F 10/08 F21S 11/00 E06B 9/24-9/388

Claims (4)

(57) [Claims] 1. A shelterboard having a T-shaped cross section, which is attached to the outside of a window of a building at a substantially middle position in the height direction of the window over the frontage direction of the window and has a T-shaped cross section. Window surface vertical
A light shelf having a plurality of structures arranged side by side in the direction and taking in sunlight reflected on the upper surface from the window part and irradiating the ceiling surface of the room as indirect illumination light; and a light shelf arranged vertically with a space between the light shelves. Lifting and lowering the slats and changing the angle of the slats at an upper window above the light shelf and at a lower window below the light shelf, the plurality of slats being mounted on the indoor side of the window, respectively. A daylight utilization system comprising a blind that can be independently operated. 2. The daylight utilization system according to claim 1, wherein said blind is integrally formed by a single rail-shaped housing containing a slat elevating mechanism and a slat angle changing mechanism. 3. The blind according to claim 1, wherein the upper window portion and the lower window portion are separately formed by two rail-shaped housings each including a slat elevating mechanism and a slat angle changing mechanism. The daylight utilization system according to claim 1. 4. An elevation drive unit for driving the slat elevation mechanism of the upper window, a slat angle drive unit for driving the slat angle change mechanism of the upper window, and an external sensor for detecting the amount of solar radiation or outdoor illuminance. An elevation control unit that drives and controls the elevation drive unit based on the amount of solar radiation detected by the external sensor or the detected value of outdoor illuminance; and the slat angle drive based on at least input data of at least the direction of the window and the sun position. The daylight utilization system according to claim 2 or 3, further comprising a slat angle control unit for driving and controlling the unit.