JP2015017480A - Blind system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blind system which can efficiently introduce daylight from a window to lighten a room, and prevent an inhabitant from feeling glare.SOLUTION: The blind system includes a blind 2 installed along a surface of a window pane 14 (window surface), and a light refracting film 3 capable of refracting daylight, entering from outdoors 12, to a ceiling 17 (an upper direction) in a room 11. The light refracting film 3 is supported by the blind 2 and arranged at a position between the window pane 14 and the blind 2 and corresponding to an upper part 14a side of the surface of the window pane 14. The blind 2 includes a plurality of slats 21, 21... arranged in a height direction and extending in a horizontal direction. The plurality of slats 21, 21... are installed at at least a position corresponding to a lower part 14b side below the upper part 14a side of the surface of the window pane 14.

Description

  The present invention relates to a blind system for improving an indoor light environment while reducing illumination energy using daylight.

2. Description of the Related Art Conventionally, when reducing lighting energy used indoors, positively introducing and using daylight from a room indoors is one of effective means for reducing power consumption of lighting.
In general, blinds are used as means for adjusting solar radiation, and appropriate daylight is guided into the room by adjusting the angle of the slats to adjust the brightness of the room (for example, Patent Document 1). reference).
In recent years, a photorefractive film capable of refracting daylight has been developed, and the daylight incident on the window from the outside is refracted toward the ceiling of the room by sticking the photorefractive film directly on the window surface. Is brightening.

Japanese Patent No. 3700098

However, in the method of installing a blind, since the solar altitude changes every moment, it is necessary to adjust the angle of the slats of the blind according to the solar altitude, which is troublesome. For this reason, in many offices, the blinds are used in a closed state, and the ceiling lights are always on.
In addition, there are blinds that can automatically adjust the angle of the slats, but they are expensive and often cannot be installed.

  In addition, in the method using a photorefractive film, it is difficult to adjust the brightness, and when the photorefractive film is attached to the window glass, there is a possibility that the window glass will be cracked due to the influence of solar heat. There is a problem that some types cannot be used. Further, when the photorefractive film is applied at a position lower than the resident's line of sight, there is a problem that the resident feels dazzled because daylight reflected on the ceiling strikes the resident. For this reason, it is conceivable that the photorefractive film is not attached to a position lower than the line of sight. However, in this way, there is a problem that daylight directly enters from a portion where the photorefractive film is not attached.

  The present invention has been made in view of the above-described problems, and provides a blind system that can efficiently introduce daylight from a window to brighten the room and does not cause a resident to feel dazzling. The purpose is to do.

  In order to achieve the above object, a blind system according to the present invention is a blind system installed along a window provided on a wall surface that separates the room from the outside, and a blind provided along the window surface of the window; A photorefractive film that can refract daylight incident from the outside so as to be directed upward in the room, the photorefractive film being supported by the blind, and between the window surface and the blind. And the blind is provided with a plurality of slats arranged in a height direction and extending in the horizontal direction, and the plurality of slats are at least an upper side of the window surface. It is provided at a position corresponding to a lower lower side.

In the present invention, of daylight transmitted through the window surface, the daylight incident on the upper side of the window surface and incident on the photorefractive film is refracted toward the indoor ceiling by the photorefractive film. At this time, if the slat is not provided at the position corresponding to the upper side of the window surface, daylight refracted by the photorefractive film faces the indoor ceiling without being blocked by the slat, and corresponds to the upper side of the window surface. In the case where a plurality of slats are provided at a position, a part of the daylight refracted by the photorefractive film passes between the upper slats adjacent in the height direction toward the indoor ceiling. And since the daylight toward the indoor ceiling is reflected by the ceiling of the room, the daylight can be used efficiently to brighten the room.
Of daylight that has passed through the window surface, daylight that enters the lower side of the window surface (daylight that does not enter the photorefractive film) is blocked by the lower slat so that all or part of it does not enter the room. Therefore, the daylight is not directly applied to the occupants in the room, and the occupants can be prevented from feeling dazzling, and the indoor light environment can be improved while reducing the illumination energy.
In addition, because the photorefractive film is supported by the blinds, there is no thermal cracking of the window surface due to the influence of solar heat as when the photorefractive film is applied to the window surface. Regardless of whether the blind system can be installed easily.

  In the blind system according to the present invention, the plurality of slats are provided at positions corresponding to the entire surface of the window surface, and are provided at positions corresponding to the upper side of the window surface among the plurality of slats. It is preferable that the plurality of upper slats have a smaller angle of inclination with respect to the horizontal plane than the plurality of lower slats provided below the plurality of upper slats.

Thus, the plurality of upper slats have a smaller inclination angle with respect to the horizontal plane than the plurality of lower slats, so that the upper side of the blind in which the plurality of upper slats are arranged can easily pass daylight. The slat is configured to shield all or part of daylight from entering the room.
For this reason, of the daylight that has passed through the window surface, the daylight that is incident on the upper side of the window surface and incident on the photorefractive film is refracted by the photorefractive film toward the indoor ceiling, and in the height direction. Since it passes between adjacent upper slats and reflects off the ceiling of the room, daylight can be used efficiently to brighten the room.
In addition, the daylight that has entered the lower part of the window surface out of the daylight that has passed through the window surface is shielded by the lower slats so that all or part of it does not enter the room. There is no daylight, and residents can be prevented from feeling dazzling.

  In the blind system according to the present invention, the blind includes a head box provided above the plurality of slats, and a ladder cord that is suspended and supported by the head box and supports the plurality of slats, The ladder cord is provided on the indoor side of the plurality of slats and supported by the head box and is supported on the outside of the plurality of slats, and the chamber is provided on the outside of the plurality of slats and supported by the head box. An outer cord, arranged at a predetermined interval in the height direction, one end connected to the indoor cord, the other end connected to the outdoor cord, and the slats at the top A plurality of connecting cords mounted, and a first lowermost slat disposed at a lowermost portion of the plurality of upper slats is mounted The distance between the first indoor side connecting portion between the connecting cord and the indoor side cord, and the second indoor side connecting portion between the second connecting cord directly below the first connecting cord and the indoor cord is different. It is preferable that it is smaller than the space | interval of the indoor side connection part of the connection code | cord | chord adjacent to the height direction of the said, and the said indoor side code | cord | chord.

Thus, the connection which supports a lower slat by making the space | interval of a 1st indoor side connection part and a 2nd indoor side connection part smaller than the space | interval of the indoor side connection part adjacent to another height direction. The end of the cord on the indoor side (indoor side connecting portion) is pulled up, or the end of the connecting cord that supports the upper slat on the indoor side (indoor side connecting portion) is pulled down.
For this reason, the inclination angle with respect to the horizontal plane of the plurality of upper slats can be easily and reliably made smaller than the inclination angle with respect to the horizontal plane of the plurality of lower slats.

According to the present invention, of daylight transmitted through the window surface, the daylight incident on the upper side of the window surface and incident on the photorefractive film is refracted by the photorefractive film toward the indoor ceiling. At this time, if the slat is not provided at the position corresponding to the upper side of the window surface, daylight refracted by the photorefractive film faces the indoor ceiling without being blocked by the slat, and corresponds to the upper side of the window surface. In the case where a plurality of slats are provided at a position, a part of the daylight refracted by the photorefractive film passes between the upper slats adjacent in the height direction toward the indoor ceiling. And since the daylight toward the indoor ceiling is reflected by the ceiling of the room, the daylight can be used efficiently to brighten the room.
Of daylight that has passed through the window surface, daylight that enters the lower side of the window surface (daylight that does not enter the photorefractive film) is blocked by the lower slat so that all or part of it does not enter the room. Therefore, the daylight is not directly applied to the occupants in the room, and the occupants can be prevented from feeling dazzling, and the indoor light environment can be improved while reducing the illumination energy.
In addition, because the photorefractive film is supported by the blinds, there is no thermal cracking of the window surface due to the influence of solar heat as when the photorefractive film is applied to the window surface. Regardless of whether the blind system can be installed easily.

It is a figure which shows an example of the blind system by embodiment of this invention. It is the elements on larger scale of FIG.

Hereinafter, a blind system according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2.
As shown in FIG. 1, the blind system 1 according to the embodiment includes a blind 2 installed on the indoor 11 side of the window glass 14 along the window glass 14 provided on the wall surface 13 that partitions the indoor 11 and the outdoor 12. And a photorefractive film 3.

The blind 2 is provided on the lower side of the plurality of slats 21, 21..., The head box 22 provided on the upper side of the slats 21, 21. And a plurality of ladder cords 24, 24... That hang down from the head box 22 and support the bottom rail 23.
The plurality of slats 21, 21... Are formed in a long thin plate shape extending in the horizontal direction along the surface of the window glass 14. Further, the head box 22 and the bottom rail 23 are also constituted by long members extending in the horizontal direction along the surface of the window glass 14.

  The head box 22 of the blind 2 is fixed to a wall or ceiling 17 above the window glass 14 or a blind box. The plurality of slats 21, 21... And the bottom rail 23 are configured to be movable in the height direction by the operation of the ladder cords 24, 24. When the bottom rail 23 moves to the lowermost part, the window glass It is comprised so that it may be located below the lower end part 14c of the window glass 14, or the same height as the lower end part 14c of 14.

The ladder cord 24 includes an indoor cord 25 that hangs down to the room 11 side of the plurality of slats 21, 21, and an outdoor cord 26 that hangs down to the outdoor 12 side (window glass 14 side) of the slats 21, 21. , One end portion 27a is connected to the indoor side cord 25, and the other end portion 27b is connected to the outdoor side cord 26, and a plurality of connecting cords 27, 27... Arranged in the height direction are provided. .
The plurality of connecting cords 27, 27... Extend in a direction substantially orthogonal to the extending direction of the slat 21, and the slat 21 is placed on the upper part to support the slat 21 from the lower surface side.
For this reason, when both ends 27a, 27b of the connecting cord 27 are located at the same height, the surface of the slat 21 is horizontal, and both ends 27a, 27b of the connecting cord 27 are located at different heights. When inclined, the surface of the slat 21 is configured to be inclined with respect to a direction substantially orthogonal to the extending direction of the slat 21 in the horizontal plane.

Then, the relative angle of the indoor cord 25 and the outdoor cord 26 in the height direction changes the inclination angle of the plurality of connecting cords 27, 27... With respect to the horizontal plane. In accordance with the change, the inclination angle of the surfaces of the plurality of slats 21, 21... With respect to the horizontal plane is changed.
In this embodiment, the end 27a on the indoor 11 side of the connecting cord 27 is adjusted to be higher than the end 27b on the outdoor 12 side, and the upper surface 21a of the slat 21 faces obliquely upward on the outdoor 12 side. ing

  Here, among the plurality of slats 21, 21..., For example, the slats 21, 21... Are arranged at a height higher than the line of sight of the resident 15 in the room 11 (height higher than about 2 m from the floor 16 of the room 11). The slats 21, 21 ... are upper slats 21A, 21A ..., and the slats 21, 21 ... lower than the upper slats 21A, 21A ... are lower slats 21B, 21B .... In the present embodiment, the upper slat 21A is adjusted so that the inclination angle with respect to the horizontal plane is smaller than that of the lower slat 21B.

  Usually, the connecting cords 27, 27... Are arranged at equal intervals in the height direction. The connecting portion between the connecting cord 27 and the indoor cord 25 is the indoor connecting portion 28, and the connecting cord 27 and the outdoor cord 26 are connected. When the connecting portion is the outdoor connecting portion 29, the interval between the indoor connecting portions 28 and 28 adjacent in the height direction and the interval between the outdoor connecting portions 29 and 29 adjacent in the height direction are all equal. Is set.

On the other hand, in this embodiment, as shown in FIG. 2, the connecting cord 27A (hereinafter referred to as the first connecting cord 27A) that supports the lowermost upper lower slat 21Aa among the plurality of upper slats 21A, 21A. ) And an indoor side cord 25 as an indoor side connecting portion 28A (hereinafter referred to as a first indoor side connecting portion 28A), and a connecting cord 27B (hereinafter referred to as a second connecting portion) disposed immediately below the first connecting cord 27A. The first indoor side connecting portion 28A and the second indoor side connecting portion 28B, when the indoor side connecting portion 28B (hereinafter referred to as the second indoor side connecting portion 28B) is connected to the indoor side cord 25. Is configured to be smaller than the distance d2 between the indoor side connecting portions 28 and 28 adjacent to each other in the height direction (and the distance d3 between the outdoor side connecting portions 29 and 29 adjacent to each other in the height direction). Has been.
In order to configure as described above, a blind may be manufactured by adjusting the length of the cord in advance to a desired length. In addition, the indoor cord 25 is pinched between the first indoor side connecting portion 28A and the second indoor side connecting portion 28B, or the lowermost upper slat 21Aa of the plurality of upper slats 21A, 21A. It can also be configured as described above by sandwiching the lower slat 21 </ b> B directly below the indoor slat 21 </ b> B.
The distance d1 between the first indoor side connecting portion 28A and the second indoor side connecting portion 28B is made smaller than the distance d2 between the indoor side connecting portions 28 and 28 adjacent to each other in the height direction. The end portion 27a (indoor side connecting portion 28) on the indoor 11 side of the connecting cord 27 that supports the slat 21B is pulled up, or the end portion 27a (indoor side connecting portion) on the indoor 11 side of the connecting cord 27 that supports the upper slat 21A. 28) is pulled down.

And by being configured as described above, the upper connecting cords 27, 27... From the first connecting cord 27A have an inclination angle with respect to the horizontal plane relative to the lower connecting cords 27, 27 from the second connecting cord 27B. It is getting smaller.
Therefore, the inclination angle θ1 of the upper slats 21A, 21A... Placed on the upper connection cords 27, 27... From the first connection cord 27A is lower than the second connection cord 27B and the lower connection cords 27, 27. Are lower than the inclination angle θ2 with respect to the horizontal plane of the lower slats 21B, 21B.

  At this time, the upper side of the blind 2 on which the upper slats 21A, 21A,... Are arranged, allows daylight to easily pass through the room 11, and the lower slats 21B, 21B,. In addition, the inclination angles θ1 and θ2 of the upper slats 21A, 21A... And the lower slats 21B, 21B.

Next, as shown in FIG. 1, the photorefractive film 3 is a transparent or translucent sheet-like or thin plate-like film that refracts most of the light incident from one surface side to the other surface side. It is configured to transmit.
The photorefractive film 3 has an upper end 3a and its vicinity adhered to the outdoor 12 side of the head box 22 or fixed using a locking tool such as a screw, and is suspended and supported by the head box 22.
The photorefractive film 3 is installed in a direction parallel to the surface of the window glass 14. And the photorefractive film 3 is formed in the position corresponding to several upper slat 21A, 21A ... of the blind 2, and the magnitude | size substantially the same as the projection area of upper slat 21A, 21A .... In other words, the lower end 3 b of the photorefractive film 3 is disposed so as to be located at a height of about 2 m from the floor surface 16 of the room 11.

Such a light refraction film 3 can refract the incident daylight toward the ceiling 17 of the room 11 when daylight enters from an obliquely upper side on the outdoor 12 side.
As shown in FIGS. 1 and 2, the lower end 3 b of the photorefractive film 3 is provided with a weight 4 in order to prevent deformation such as wrinkling of the photorefractive film 3. For the weight 4, for example, a linear member such as an L-shaped angle provided along the lower end portion 3 b of the photorefractive film 3 is used.

Next, the operation and effect of the above-described blind system 1 will be described with reference to the drawings.
In the blind system 1 according to the present embodiment, among the daylight that has passed through the window glass 14, most of the daylight that enters the upper portion 14a side of the surface of the window glass 14 and enters the photorefractive film 3 is a photorefractive film. 3 refracts toward the ceiling 17 of the room 11. And since the daylight which permeate | transmitted the photorefractive film 3 passes between the upper slats 21A and 21A adjacent to a height direction, and reflects on the ceiling 17 of the room | chamber interior 11, it uses daylight efficiently and uses the room | chamber 11 Can be brightened.
Of daylight transmitted through the window glass 14, daylight (daylight not incident on the photorefractive film 3) incident on the lower part 14 b side of the surface of the window glass 14 is reflected by the lower slats 21 </ b> B, 21 </ b> B. Therefore, the resident 15 in the room 11 is not directly exposed to daylight, and the resident 15 can be prevented from feeling dazzling. The light environment can be improved.

In addition, the distance d1 between the first indoor side connecting portion 28A and the second indoor side connecting portion 28B is made smaller than the distance d2 between the indoor side connecting portions 28 and 28 adjacent to each other in the height direction. The inclination angle θ1 with respect to the horizontal plane of the upper slats 21A and 21A can be easily made smaller than the inclination angle θ2 with respect to the horizontal plane of the plurality of lower slats 21B and 21B. Since only the length of the cord is adjusted in this way, the slat angle can be operated (adjusted) uniformly for all the slats by the resident as in the case of a normal blind.
Further, since the photorefractive film 3 is suspended and supported by the head box 22 of the blind 2, the thermal cracking of the window glass 14 occurs due to the influence of solar heat as when the photorefractive film 3 is attached to the window glass 14. Therefore, the blind system 1 can be easily installed regardless of the type of the window glass 14.

As mentioned above, although embodiment of the blind system 1 by this invention was described, this invention is not limited to said embodiment, It can change suitably in the range which does not deviate from the meaning.
For example, in the above embodiment, the plurality of upper slats 21A, 21A... And the photorefractive film 3 are provided at a height of about 2 m from the floor 16 of the room 11 that is above the line of sight of the occupant 15 in the room 11. However, it does not have to be provided at a height of about 2 m from the floor surface 16 of the room 11, and daylight incident on the upper portion 14a side of the surface of the window glass 14 is directed toward the ceiling 17 and on the lower portion 14b side. As long as the incident daylight can be blocked from entering the room 11, it may be provided at a height that matches the application or shape of the room 11.
In the above embodiment, the daylight incident on the lower part 14b side of the surface of the window glass 14 is shielded from entering all of the room 11 by the lower slats 21B and 21B. Depending on the shape or the like, a part may be introduced into the room 11 and the other may be shielded from entering the room 11.
Further, in the above embodiment, the slat 21 of the blind 2 is composed of the upper slats 21A, 21A ... and the lower slats 21B, 21B .... For example, when the room 11 does not need to be darkened, The upper slats 21A and 21A are not provided, and the slats 21 of the blind 2 are configured only by the lower slats 21B, 21B... And the daylight refracted by the photorefractive film 3 is sufficiently taken into the room 11. You may make it utilize. Even when the upper slats 21A, 21A are provided, the upper slats 21A, 21A,... The daylight refracted by the photorefractive film 3 may be sufficiently taken into the room 11 and used so as to be larger than the interval.
In the above embodiment, the photorefractive film 3 is suspended and supported by the head box 22, but may be supported by a member of the blind 2 other than the head box 22.
In the above embodiment, the weight 4 is provided at the lower end portion 3b of the photorefractive film 3, but the weight 4 may not be provided.

DESCRIPTION OF SYMBOLS 1 Blind system 2 Blind 3 Photorefractive film 4 Weight 11 Room 12 Outdoor 13 Wall surface 14 Window glass 14a Upper part 14b Lower part 15 Resident 16 Floor surface 17 Ceiling 21A Upper slat 21Aa Upper lowest slat 21B Lower slat 22 Head box 23 Bottom rail 24 Ladder cord 25 Indoor side cord 26 Outdoor side cord 27 Connection cord 27A First connection cord 27B Second connection cord 28 Indoor side connection portion 28A First indoor side connection portion 28B Second indoor side connection portion 29 Outdoor side connection portion θ1, θ2 tilt angle

Claims (3)

In the blind system installed along the window provided on the wall that separates the room from the outside,
A blind provided along the window surface of the window;
A photorefractive film that can refract daylight incident from the outside so as to be directed upward in the room, and
The photorefractive film is supported by the blind, and is disposed at a position corresponding to the upper side of the window surface between the window surface and the blind,
The blind includes a plurality of slats arranged in a height direction and extending in a horizontal direction,
The blind system according to claim 1, wherein the plurality of slats are provided at positions corresponding to at least a lower side below the upper side of the window surface. The plurality of slats are provided at positions corresponding to the entire surface of the window surface,
Among the plurality of slats, a plurality of upper slats provided at positions corresponding to the upper side of the window surface are in a horizontal plane rather than a plurality of lower slats provided below the plurality of upper slats. The blind system according to claim 1, wherein the inclination angle is small. The blind includes a head box provided above the plurality of slats, and a ladder cord that is suspended and supported by the head box and supports the plurality of slats,
The ladder cord is provided on the indoor side of the plurality of slats, and is supported by hanging from the head box;
An outdoor cord provided on the outdoor side of the plurality of slats and supported suspended from the head box;
Arranged at a predetermined interval in the height direction, one end is connected to the indoor cord, the other end is connected to the outdoor cord, and the slat is placed on the top. A plurality of connecting cords,
Of the plurality of upper slats, there is a first indoor-side connecting portion between the first connecting cord on which the uppermost lower slat disposed at the lowermost portion is placed and the indoor-side cord, and immediately below the first connecting cord. The interval between the second connecting cord and the second indoor side connecting portion between the indoor side cord is smaller than the interval between the connecting cords adjacent to each other in the height direction and the indoor side connecting portion. The blind system according to claim 2.

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