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WO2018151136A1 - Dispositif d'éclairage naturel - Google Patents

Dispositif d'éclairage naturel Download PDF

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Publication number
WO2018151136A1
WO2018151136A1 PCT/JP2018/005021 JP2018005021W WO2018151136A1 WO 2018151136 A1 WO2018151136 A1 WO 2018151136A1 JP 2018005021 W JP2018005021 W JP 2018005021W WO 2018151136 A1 WO2018151136 A1 WO 2018151136A1
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WO
WIPO (PCT)
Prior art keywords
daylighting
sheet
area
folded
lighting
Prior art date
Application number
PCT/JP2018/005021
Other languages
English (en)
Japanese (ja)
Inventor
俊 植木
俊平 西中
透 菅野
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2018151136A1 publication Critical patent/WO2018151136A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S11/00—Non-electric lighting devices or systems using daylight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • F21V11/04—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type adjustable

Definitions

  • One embodiment of the present invention relates to a daylighting apparatus.
  • This application claims priority on Japanese Patent Application No. 2017-025013 filed in Japan on February 14, 2017, the contents of which are incorporated herein by reference.
  • a daylighting technique described in Patent Document 1 is known as a technique for efficiently guiding light from the outside incident on the window glass to the indoor.
  • a reflective surface is formed by filling a plurality of concave grooves repeatedly produced on one side of a transparent sheet to form a reflective surface, and the light path of sunlight transmitted through the window glass is reflected by the reflective surface.
  • a daylighting sheet that is folded and introduced indoors is disclosed. Such a daylighting sheet is installed by being attached to a window glass with an adhesive layer.
  • One aspect of the present invention is made in view of the above-described problems of the prior art, and has a daylighting function, and can easily ensure a view from the room to the outdoors as needed.
  • the purpose is to provide.
  • the daylighting device is a foldable daylighting device, and includes a daylighting sheet having a plurality of daylighting portions having light permeability on one side, and the daylighting sheet includes a daylighting region having the daylighting unit. 3 or more in the folding direction, and each daylighting area is configured to be foldable so as to overlap each other in the folding direction, and the daylighting sheet has at least a part thereof, and the daylighting state in which the daylighting area is flat, It is set as the structure switched between the 2nd states where the lighting area was folded.
  • the daylighting part of the (n + 1) daylighting area and the daylighting part of the daylighting area (n + 2) that overlaps the daylighting area (n + 1) may be mutually opposite. .
  • the daylighting apparatus may be configured such that the folding direction of the daylighting sheet is the longitudinal direction of the daylighting apparatus.
  • the folding direction of the daylighting sheet may be a lateral direction of the daylighting apparatus.
  • the daylighting sheet has a flexibility that connects a plurality of daylighting strips extending in a direction perpendicular to the folding direction and at least a part of the daylighting strips to each other. It is good also as a structure provided with the 1st connection member which has.
  • the guide rail extending along the folding direction of the daylighting sheet, and between the odd-numbered n daylighting areas and the (n + 1) daylighting area in the daylighting sheet, or It is good also as a structure provided with the some 2nd connection member which is arrange
  • the daylighting sheet may be configured to be folded in order from the daylighting area on one end side.
  • the daylighting sheet may be configured to be housed or deployed in the folding direction as a whole at the same rate.
  • the daylighting sheet is configured such that the daylighting area is sequentially developed from one end side when the daylighting sheet is unfolded from the folded storage state, and the daylighting sheet is unfolded. It is good also as a structure provided with the stopper which maintains the accommodation state of the said lighting areas other than a lighting area.
  • the daylighting apparatus may further include a bracket that houses the folded daylighting sheet, and a lifting cord that is suspended from the bracket.
  • the daylighting apparatus may include a holding member that holds both ends of the daylighting sheet along a first direction that intersects the folding direction.
  • a daylighting apparatus that has a daylighting function and can ensure the brightness of the room and can easily ensure the view from the room to the outdoors as needed.
  • the figure which shows the accommodation state of the daylighting sheet in 3rd Embodiment The figure which shows the mode of the expansion
  • FIG. 4th Embodiment It is a figure which shows one form of the lighting device in 4th Embodiment, Comprising: The figure which shows a lighting state. It is a figure which shows one form of the lighting apparatus in 4th Embodiment, Comprising: The figure which shows an accommodation state. It is a figure which shows the other form of the lighting apparatus in 4th Embodiment, Comprising: The figure which shows a mode that a vertical movement is possible. It is a figure which shows the other form of the lighting apparatus in 4th Embodiment, Comprising: The figure which shows a mode that a vertical movement is possible.
  • the top view which shows the lighting condition of the lighting apparatus in 5th Embodiment.
  • FIG. 20 is a diagram illustrating a room model including a lighting system, and a cross-sectional view taken along line B-B ′ of FIG. 19.
  • the top view which shows the ceiling of a room model.
  • the graph which shows the relationship between the illumination intensity of the light (natural light) daylighted indoors with the lighting apparatus, and the illumination intensity (illumination system) by an indoor lighting apparatus.
  • the positional relationship (upper and lower, left and right, front and rear) of the daylighting device is based on the positional relationship (upper and lower, left and right, front and rear) when the daylighting device 10 is used, and unless otherwise specified, Also in the drawings, the positional relationship of the daylighting device is the same as the positional relationship with respect to the paper surface.
  • FIG. 1 is a perspective view showing a configuration (deployed state) of a daylighting apparatus 10 according to the first embodiment.
  • FIG. 2 is a perspective view showing the configuration (partially folded) of the daylighting apparatus 10 according to the first embodiment.
  • FIG. 3 is a cross-sectional view illustrating a schematic configuration (deployed state) of the daylighting apparatus 10 according to the first embodiment.
  • FIG. 4 is a cross-sectional view illustrating a schematic configuration (partially folded state) of the daylighting apparatus 10 according to the first embodiment.
  • FIG. 5 is a cross-sectional view illustrating a schematic configuration (folded state) of the daylighting apparatus 10 according to the first embodiment.
  • the vertical direction (vertical direction) of the daylighting apparatus 10 in FIGS. 1 and 2 is defined as the Z direction
  • the horizontal direction (lateral direction) is defined as the X direction
  • the front and back direction is defined as the Y direction.
  • the daylighting apparatus 10 mainly includes a daylighting sheet 11 having daylighting properties and an elevating mechanism 12 that supports the daylighting sheet 11 so as to be movable up and down. ing.
  • the daylighting sheet 11 has a plurality of daylighting areas 100A in the vertical direction, and can be folded by the elevating mechanism 12 so that the daylighting areas 100A are folded in the folding direction (Z direction: vertical direction). Yes.
  • the number of the daylighting regions 100A in the daylighting sheet 11 is set as appropriate, and is set according to the size and folding width of the window glass 1003 (FIG. 3). Like this embodiment, what is necessary is just to have three or more lighting areas 100A in the folding direction.
  • the elevating mechanism 12 has a fixing box (bracket) 13 attached to the ceiling near the window via a fixture (not shown). Inside the fixed box 13 are a plurality of lifting / lowering cords 14, a plurality of cord insertion portions 15 through which the lifting / lowering cords 14 are respectively inserted, and a gear (not shown) that winds the lifting / lowering cords 14 by rotating each cord insertion portion 15. And is housed.
  • One end side of the lifting / lowering cord 14 is suspended from the corresponding predetermined cord insertion portion 15 along the back surface of the daylighting sheet 11, and is connected to the daylighting sheet 11 via a connector 16 provided at the lower part of the daylighting sheet 11. Yes.
  • the lifting / lowering cord 14 is wound around the fixed box 13 by the rotation of the cord insertion portion 15.
  • the cord insertion portion 15 is a mechanism that is rotated by the operation of the operation cord 8, and the raising and lowering of the lifting / lowering cord 14 is controlled by the rotation of the cord insertion portion 15. It is possible to switch between the lighted state and the folded storage state.
  • the daylighting sheet 11 has substantially the same width as the extension length of the fixed box 13, and the upper end side is attached to the fixed box 13 and suspended.
  • the daylighting sheet 11 has daylighting properties and has a plurality of daylighting strips 18 having a rectangular shape in plan view extending in a direction (X direction) orthogonal to the folding direction (Z direction) and a predetermined interval in the vertical direction.
  • a connecting member (first connecting member) 19 for connecting the plurality of daylight strips 18 is mainly provided.
  • a plurality of daylight strips 18 are arranged in parallel to each other at a predetermined interval in the hanging direction (Z direction) of the daylighting sheet 11.
  • the daylighting sheet 11 of the present embodiment includes a daylighting strip portion 18 arranged in each of a plurality of daylighting regions 100A set at regular intervals in the vertical direction of the connecting member 19, and the plurality of daylighting strip portions.
  • the light incident surface 11a side on which 18 is disposed is placed toward the window glass 1003 (FIG. 3).
  • a plurality of ring-shaped insertion portions 9 are attached to the light incident surface 11a side of the daylighting sheet 11 with a predetermined interval in the vertical direction (Z direction). Each ring-shaped insertion portion 9 is inserted in the vertical direction.
  • the ring-shaped insertion part 9 is attached at a position along the lifting / lowering cord 14.
  • the ring-shaped insertion part 9 is arranged every two lighting strips 18 arranged in the vertical direction. That is, there are two daylight strips 18 between the other ring-shaped insertion parts 9 adjacent in the vertical direction.
  • the daylighting strip 18 has a base material 18 ⁇ / b> A that has a rectangular shape in a cross section perpendicular to the longitudinal direction (X direction), and light transmittance provided on the first surface 18 a of the base material 18 ⁇ / b> A.
  • a plurality of daylighting portions 18B and a gap portion 18C formed between the plurality of daylighting portions 18B are provided.
  • the daylighting portion 18B extends in the longitudinal direction (X direction) of the base material 18A and is arranged side by side in the short direction (Z direction) of the base material 18A.
  • the daylighting unit 18B constitutes a prism body having a hexagonal cross section, for example.
  • the shape of the daylighting unit 18B is not limited to the hexagonal cross section of the present embodiment, and may be a pentagonal cross section, a triangular cross section, or a multitaper shape, and is not particularly limited.
  • air air gap portion 18C
  • other low refractive index materials may be filled therebetween.
  • the difference in refractive index at the interface between the daylighting portion 18B and the gap portion 18C is maximized when air is present rather than when any low refractive index material is present outside. Therefore, when air is present, as shown in FIG. 3, the critical angle of light totally reflected by the reflecting surface 4b or the reflecting surface 4c out of the light incident on the daylighting unit 18B is the highest according to Snell's law. Get smaller.
  • the range of the incident angle of the light totally reflected by the reflective surface 4b or the reflective surface 4c becomes the widest, the light incident on the daylighting portion 18B is efficiently guided to the second surface 18b side of the base material 18A. be able to. As a result, the loss of light incident on the daylighting unit 18B is suppressed, and the luminance of light emitted from the other surface of the base material 18A can be increased.
  • the refractive index of the substrate 18A and the refractive index of the daylighting portion 18B are substantially equal.
  • the refractive index of the base material 18A and the refractive index of the daylighting unit 18B are significantly different, when light enters the basement 18A from the daylighting unit 18B, it is unnecessary at the interface between the daylighting unit 18B and the base material 18A. Light refraction and reflection may occur. In this case, there is a possibility that problems such as failure to obtain desired lighting characteristics and a decrease in luminance may occur.
  • the base material 18A is made of a light transmissive resin such as a thermoplastic polymer, a thermosetting resin, or a photopolymerizable resin. Further, as the light transmissive resin, those made of acrylic polymer, olefin polymer, vinyl polymer, cellulose polymer, amide polymer, fluorine polymer, urethane polymer, silicone polymer, imide polymer, etc. are used. be able to.
  • a light transmissive resin such as a thermoplastic polymer, a thermosetting resin, or a photopolymerizable resin.
  • the light transmissive resin those made of acrylic polymer, olefin polymer, vinyl polymer, cellulose polymer, amide polymer, fluorine polymer, urethane polymer, silicone polymer, imide polymer, etc. are used. be able to.
  • polymethyl methacrylate resin PMMA
  • triacetyl cellulose PET
  • cycloolefin polymer COP
  • PC polyethylene naphthalate
  • PEN polyethylene naphthalate
  • PES polyethersulfone
  • PI polyimide
  • the total light transmittance of the substrate 18A is preferably 90% or more in accordance with JIS K7361-1. Thereby, sufficient transparency can be obtained.
  • the daylighting unit 18B is made of, for example, an organic material having optical transparency and photosensitivity such as acrylic resin, epoxy resin, and silicone resin. Moreover, what mixed the polymerization initiator, the coupling agent, the monomer, the organic solvent, etc. can be used for these organic materials. Furthermore, the polymerization initiator contains various additive components such as a stabilizer, an inhibitor, a plasticizer, a fluorescent brightening agent, a release agent, a chain transfer agent, and other photopolymerizable monomers. Also good. In addition, materials described in Japanese Patent No. 41299991 can be used.
  • the total light transmittance of the daylighting unit 18B is JIS 90% or more is preferable according to the regulation of K7361-1. Thereby, sufficient transparency can be obtained.
  • the dimensions of the daylight strip 18 are set as appropriate.
  • the length in the longitudinal direction (X direction) of the daylight strip 18 is set according to the horizontal dimension of the window glass 1003, and the length in the lateral direction (Z direction) is a ring. It is set according to the arrangement interval (folding condition) of the shape insertion part 9, and the thickness is about 1 mm.
  • the dimensions of the connecting member 19 are also set as appropriate.
  • the length L2 in the longitudinal direction (X direction) of the connecting member 19 is the same as or longer than the daylight strip 18.
  • the length in the vertical direction (Z direction) is a length corresponding to the vertical dimension of the window glass.
  • An elevating bar may be provided on the lower edge of the connecting member 19.
  • the material of the connecting member 19 may be a translucent member having flexibility as a whole, and examples thereof include a cloth, a film, and a sheet.
  • the connecting member 19 has a light-collecting property as a whole.
  • the connecting member 19 is not limited to this.
  • a portion overlapping the light-collecting strip portion 18 has light-transmitting properties, and a light-collecting strip portion.
  • a portion that does not overlap with 18 (between daylighting strip portions 18 adjacent in the vertical direction) may have a light shielding property.
  • you may have light scattering property as a whole, and light scattering property may be provided only in the overlapping part.
  • connection member 19 of this embodiment has the magnitude
  • the configuration of the present embodiment is not limited. It is only necessary that the plurality of daylight strips 18 can be connected in parallel with each other in a horizontal posture. For example, a member that partially connects the upper and lower daylight strips 18 may be used.
  • the lifting operation unit 17 is operated to release the code restriction of the lifting stopper (not shown), and the lifting and lowering operation is performed.
  • the operation code 8 on the operation unit 17 side is raised.
  • the other end side of the lifting / lowering cord 14 suspended from the cord insertion portion 15 of the fixed box 13 and connected to the daylighting sheet 11 is lowered, and the daylighting sheet 11 is sequentially developed from the upper end side, as shown in FIG. Full deployment state.
  • the daylighting sheet 11 extends in the vertical direction in the unfolded state, and the light incident surface 11 a and the light emitting surface 11 b are flat and substantially parallel to the window glass 1003.
  • the whole or at least part of the daylighting sheet 11 is developed, and the daylighting function is exhibited in a part parallel to the window glass 1003.
  • the daylighting strip 18 is unfolded and the daylighting area is flat, and the daylighting strip 18 is folded and stored. It can be switched.
  • the connecting tool 16 that connects the lifting / lowering cord 14 and the daylighting sheet 11 gradually moves upward, and the cord insertion portion 15 arranged vertically.
  • the connecting member 19 between the two daylight strips 18 disposed between the two is folded in a convex shape toward the indoor side.
  • the folding portion 5 has increased flexibility, so that it is naturally folded at this portion.
  • the folding width (superimposition width) of the daylighting regions 100A adjacent in the folding direction is substantially equal to each other.
  • the two daylight strips 18 arranged between the ring-shaped insertion parts 9 and 9 adjacent in the vertical direction are folded in a state where the daylighting part 18B faces each other.
  • the daylighting portions 18B of the daylighting strips 18-2 in the side daylighting region ((n + 1) daylighting region) 100A-2 face each other.
  • the daylighting portions 18B of the strip portion 18-3 are in conflict with each other. That is, the base material 18A side of each of the daylight strips 18-2 and 18-3 faces each other.
  • the folded daylighting sheets 11 are grouped directly under the fixed box 13.
  • the folded daylighting sheet 11 may be housed in the fixed box 13. Thereby, since the folded daylighting sheet
  • the daylighting apparatus 10 of the present embodiment when it is desired to brighten the room by daylighting, the daylighting sheet 11 is unfolded and used, and when it is desired to view the outdoors, the daylighting sheet 11 is folded and stored.
  • the outside can be seen from the glass 1003.
  • the daylighting apparatus 10 of the present embodiment can change the usage state of the daylighting sheet 11 as appropriate.
  • the view can be easily secured as necessary.
  • a clear view could not be obtained because the outside was viewed through the daylighting sheet.
  • the window was kept away from the daylighting sheet 11. Since the outside can be directly viewed from the glass 1003, a clear view can be obtained.
  • the daylighting strip portion 18 is in a posture parallel to the window glass 1003 in the daylighting state in which the daylighting sheet 11 is unfolded. It can be well daylighted and glare light can be suppressed.
  • the daylighting device 20 according to the second embodiment of the present invention will be described.
  • the basic configuration of the daylighting device 20 of the present embodiment shown below is substantially the same as that of the first embodiment, except that the daylighting sheet 21 is formed integrally instead of the plurality of daylight strips 18. Different. Therefore, in the following description, the daylighting sheet 21 and its peripheral configuration will be described in detail, and description of common parts will be omitted.
  • the same reference numerals are given to the same components as those in FIGS.
  • FIG. 6 is a cross-sectional view illustrating a schematic configuration of the daylighting device 20 according to the second embodiment.
  • the daylighting apparatus 20 of the present embodiment includes a daylighting sheet 21 having a size corresponding to the window glass 1003 and a connecting member 19 having substantially the same size as the daylighting sheet 21.
  • the daylighting sheet 21 includes one base material 22 and a plurality of daylighting units 18 ⁇ / b> B provided over substantially the entire surface 22 a of the base material 22.
  • the connection member 19 the thing similar to previous embodiment can be used.
  • two daylighting areas 100A and 100A are set between two ring-shaped insertion portions 9 and 9 adjacent in the vertical direction.
  • the operation cord 8 When folding the daylighting sheet 21 in the fully unfolded state, the operation cord 8 is pulled to fold in the vertical direction (Z direction: vertical direction) so as to overlap each other in the folding direction in order from the lower daylighting area 100A.
  • a plurality of daylighting units 18B existing in the lower daylighting area 100A-1 and a plurality of daylighting parts 18B existing in the upper daylighting area 100A-2 that overlaps the daylighting area 100A-1 Are opposed to each other.
  • each daylighting unit 18B in the daylighting area 100A-2 and each daylighting part 18B in the daylighting area 100A-3 that folds over the daylighting area 100A-2 are mutually contradictory, and each daylighting area 100A-2, 100A-3
  • the substrate 18A side faces each other.
  • the daylighting device 20 of this embodiment is not provided with a plurality of daylight strips 18 as in the first embodiment, but is composed of a single daylighting sheet 21 in the form of a film. Since the daylighting sheet 21 is a thin film having flexibility, the strength is increased by providing the connecting member 19 on one side. Along with this, the curvature of the folding part 5 increases, so that the daylighting part 18B of one daylighting area 100A and the daylighting part 18B of the other daylighting area 100A that are folded in the vertical direction are less likely to collide with each other, and the fine structure surface is damaged. It can prevent sticking.
  • the daylighting device 30 according to the third embodiment of the present invention will be described.
  • the basic configuration of the daylighting device 30 of the present embodiment described below is substantially the same as that of the first embodiment, but the deployment and storage methods are different. Therefore, in the following description, the daylighting sheet feeding method and the configuration associated therewith will be described in detail, and description of common parts will be omitted.
  • the same reference numerals are given to the same components as those in FIGS.
  • FIG. 7 is a perspective view illustrating a schematic configuration of the daylighting device 30 according to the third embodiment.
  • the daylighting device 30 of the present embodiment is configured to be sequentially drawn out from the housed state and deployed like a roll curtain.
  • the daylighting device 30 includes a daylighting sheet 31 having a plurality of daylighting strips 18 and a connecting member (first connecting member) 34 that connects the plurality of daylighting strips 18 in the vertical direction. I have.
  • the folded portion 5 is formed on the light incident surface 31 a side of the daylighting sheet 31.
  • the connecting member 34 is provided with a plurality of projecting portions 32 extending to the light emission surface 31 b side opposite to the folding portion 5, and the elevating cord 14 is provided in the hole 33 formed in each projecting portion 32. Is inserted. Further, a tension cord 35 shown in FIG. 8 is provided at the lower end of the daylighting sheet 31.
  • FIG. 8 is a diagram illustrating a storage state of the daylighting sheet 31 according to the third embodiment.
  • the operation cord 8 is pulled so that the daylighting surfaces (microstructures) between the daylighting strips 18 adjacent in the vertical direction via the overhanging part 32 are drawn. It is superposed so as to be overlapped with the surface) side facing each other, and is compactly accommodated in the upper part of the window glass 1003.
  • the superposed daylighting sheet 31 is pressed by a feeding stopper (stopper) 37 provided at a lower position of the fixed box 13 so as not to drop downward due to gravity.
  • the daylighting sheet 31 has a short length corresponding to the folded length, and substantially the entire window glass 1003 is exposed. Therefore, an external view is possible from the indoor side.
  • FIGS. 9 to 11 are diagrams sequentially illustrating the development of the daylighting sheet 31 in the third embodiment.
  • the daylighting apparatus 30 in this embodiment has a tension cord 35 at the lower end of the daylighting sheet 31, and pulling the tension cord 35 results in one daylighting strip 18 as shown in FIGS. 9 to 11. It is a mechanism that is fed out one by one. Since the daylighting sheet 31 is superimposed so that the daylighting strips 18 face each other at the time of storage, by pulling the tension cord 35, the daylighting strips 18 from the lowermost side of the daylighting sheet 31 are separated from the window glass 1003. It is sequentially drawn out so as to have a parallel posture.
  • the drawn light strip portion 18 functions as a daylighting sheet 31 for introducing outside light into the room.
  • the portion of the daylighting strip unit 18 fed out depends on whether the portion pressed by the feeding stopper 37 is the daylighting strip unit 18 side or the connecting member 34 side. The position differs in the front-rear direction of the daylighting sheet 31.
  • the connecting member 34 side is pressed by the feeding stopper 37, and then the window glass 1003 is drawn out. Located on the near side.
  • FIG. 9 shows that when the odd-numbered daylight strips 18 are fed out from the upper side of the daylighting sheet 31, the connecting member 34 side is pressed by the feeding stopper 37, and then the window glass 1003 is drawn out.
  • the fine structure surface side of the daylighting strip portion 18 is pressed and fed out by the feeding stopper 37. It is located on the side away from the window glass 1003 later.
  • FIG. 12 is a diagram showing a state of the daylighting of the daylighting sheet in the third embodiment. As shown in FIG. 12, when the daylight strips 18 are all drawn out and the daylighting sheet 31 is in a posture parallel to the window glass 1003, the daylighting area is maximized. At this time, the daylighting sheet 31 has a planar shape with the entire surface extended. External light that has entered each daylight strip 18 of the daylighting sheet 31 is daylighted and introduced toward the indoor ceiling.
  • the gear (not shown) connected to the upper portion is rotated by the operation of the operation cord 8, and the vertical direction from the daylighting strip 18 on the upper end side of the daylighting sheet 31. It can be folded in the (Z direction: longitudinal direction) and finally folded to the storage state shown in FIG.
  • the overhanging portion 32 is provided on the light exit surface 31b side of the daylighting sheet 31, light leakage from the hole portion 33 through which the elevating cord 14 is inserted can be suppressed. It is possible to prevent a person in the room from feeling dazzling.
  • a daylighting device 40 according to a fourth embodiment of the present invention will be described.
  • the basic configuration of the daylighting device 40 of the present embodiment shown below is substantially the same as that of the first embodiment, but differs in that it has an accordion structure. Therefore, in the following description, the accordion configuration will be described in detail, and description of common parts will be omitted.
  • the same reference numerals are given to the same components as those in FIGS.
  • FIG. 13 is a perspective view showing a daylighting state of the daylighting device 40 according to the fourth embodiment.
  • FIG. 14 is a perspective view illustrating a storage state of the daylighting device 40 according to the fourth embodiment.
  • FIGS. 15A and 15B are diagrams showing one embodiment of the daylighting device 40 according to the fourth embodiment.
  • FIG. 15A shows a daylighting state
  • FIG. 15B shows a storage state.
  • FIG. 15C and FIG. 15D are diagrams showing another embodiment of the daylighting device 40 in the fourth embodiment and showing how the lighting device 40 can move up and down.
  • the daylighting sheet 41 is folded by contracting and unfolding in the vertical direction (Z direction: vertical direction) at substantially the same rate as a whole.
  • the housing state and the daylighting state extending in a planar shape are appropriately switched.
  • the connecting member (first connecting member) 42 of the present embodiment is subjected to a bending process in advance with respect to the area between the plurality of daylight strips 18, and is stored by being bent in a predetermined direction when stored. Is done.
  • a configuration in which the lifting / lowering cord (not shown) is pulled may be stored, or a configuration in which it is automatically stored may be used.
  • the daylighting device 40 may be a daylighting device 40A including a daylighting sheet 41A having a size covering the entire window glass 1003, as shown in FIG. 15A.
  • the state in which all are developed may be the daylighting device 40B including the daylighting sheet 41B having a size covering a part of the window glass 1003.
  • the daylighting device 40A (40) is fixed to the ceiling, and the daylighting sheet 41A contracts and expands substantially evenly in the vertical direction between the daylighting state shown in FIG. 15A and the housed state shown in FIG. 15B.
  • a pair of holding members 43 (one holding member is not shown) are provided on both sides in the width direction crossing the folding direction (vertical direction) of the daylighting sheet 41 to hold the end portions on both sides in the width direction of the daylighting sheet 41. May be.
  • the daylighting sheet 41 can be appropriately switched between the daylighting state and the housed state as the daylighting sheet 41 expands and contracts substantially uniformly.
  • the daylighting sheet 41 in daylighting situations, when you want to avoid sunlight or direct sunlight where you can expect daylighting, or when you are concerned about the line of sight from the outside, you can unfold the daylighting sheet 41 and cover all or part of the window glass 1003. It is good also as the lighting state which covers.
  • the daylighting sheet 41 is partially or entirely housed to expose the window glass 1003. It may be.
  • the holding member 43 it is possible to suppress shaking and rattling in the front-rear direction when the daylighting sheet 41 is stored and deployed. Further, by adopting a configuration in which both sides of the daylighting sheet 41 are fitted into the holding member 43, light leakage from the lateral gap can be prevented.
  • the pair of holding members 43 are not necessarily provided, and may be provided only on at least one end side in the width direction of the daylighting sheet 41.
  • a pair of guide rails 44 (one guide rail is not shown) for guiding the daylighting device 40B in the vertical direction are provided on both sides in the width direction of the daylighting device 40B.
  • the daylighting device 40B can be translated in the vertical direction, and the arrangement position of the daylighting device 40B with respect to the window glass 1003 can be appropriately changed. Thereby, it can respond easily even if the position which sunlight injects changes with the height and installation conditions of the sun.
  • the daylighting device 40B vertically movable, it is possible to obtain both daylighting and viewability at the same time.
  • the lighting device 40B can be slid up and down regardless of whether the lighting device 40B is in the expanded state or the stored state.
  • the structure which slides the lighting apparatus 40B to a perpendicular direction is not restricted to said structure, You may use another structure.
  • a daylighting device 50 according to a fifth embodiment of the present invention will be described.
  • the basic configuration of the daylighting device 50 of the present embodiment described below is substantially the same as that of the first embodiment, but is different in that it has a curtain structure. Therefore, in the following description, the curtain structure will be described in detail, and description of common parts will be omitted.
  • the same reference numerals are given to the same components as those in FIGS.
  • FIG. 16 is a top view showing a daylighting state of the daylighting device 50 according to the fifth embodiment.
  • FIG. 17 is a top view illustrating a storage state of the daylighting device 50 according to the fifth embodiment.
  • the daylighting device 50 of the present embodiment is installed so as to be suspended from the ceiling at the window, and is slidable in the left-right direction of the window (the first direction intersecting the folding direction: the lateral direction). It is what makes.
  • the lighting device 50 includes a guide rail 51 installed on the ceiling near the window, a plurality of runner parts (second connecting members) 52 attached to the guide rail 51 and movable along the guide rails 51, and a plurality of runner parts. And a daylighting pleat (daylighting sheet) 53 connected to the guide rail 51 via 52. Furthermore, a rail box (not shown) for hiding the guide rail 51 and the runner portion 52 may be installed on the ceiling.
  • the daylighting pleat 53 includes a plurality of daylighting strip portions 18 and a connecting member (first connecting member) 54 having flexibility that connects the plurality of daylighting strip portions 18, and in the horizontal direction (Y direction). It is configured to be stored and unfolded while being folded in a wave shape.
  • the runner portions 52 are respectively disposed between both end sides of the daylighting pleat 53 and the daylighting regions 100A-2 and 100A-3 where the folding portion 5 does not exist.
  • You may provide the runner part 52 in the position where the folding part 5 exists. That is, the runner portion 52 may be provided between the daylighting area 100A-1 and the daylighting area 100A-2 that folds so as to be adjacent to the daylighting area 100A-1.
  • the lighting pleat 53 is arranged on the window glass 1003 side of the guide rail 51.
  • a person in the room can expose the window glass 1003 by moving the daylighting pleats 53 along the guide rails 51 to the left and right of the window, thereby ensuring a clear outdoor view. it can.
  • a plurality of daylight strips 18 are provided on the light incident surface 53a side of the daylight pleat 53.
  • the plurality of daylight strips 18 have a length in the vertical direction (direction perpendicular to the paper surface).
  • a plurality of daylighting portions (not shown) provided in the daylighting strip portion 18 respectively extend along the left-right direction of the window (the vertical direction of the paper).
  • [Lighting system] 18 is a view showing a room model 2000 provided with the illumination system 2001, and is a cross-sectional view taken along the line BB ′ of FIG.
  • FIG. 19 is a plan view showing the ceiling of the room model 2000.
  • the ceiling material constituting the ceiling 2003a of the room 2003 into which sunlight is introduced has high light reflectivity.
  • a light-reflective ceiling material 2003 ⁇ / b> A is installed on the ceiling 2003 a of the room 2003 as a light-reflective ceiling material.
  • the light-reflective ceiling material 2003A promotes introduction of external light from the daylighting apparatus 2010 installed in the window 2002 toward the back of the room.
  • the light-reflective ceiling material 2003A is installed on the ceiling 2003a near the window. Specifically, it is installed in a predetermined area E (an area about 3 m from the window 2002) of the ceiling 2003a.
  • the light-reflective ceiling material 2003A efficiently guides the sunlight introduced into the room through the window 2002 in which the light control blind according to any of the embodiments is installed to the back side of the room.
  • Sunlight introduced from the daylighting apparatus 2010 toward the indoor ceiling 2003a is reflected by the light-reflective ceiling material 2003A and changes its direction to illuminate the desk surface 2005a of the desk 2005 placed in the interior of the room. The effect of brightening the desk top surface 2005a is exhibited.
  • the light-reflective ceiling material 2003A may be diffusely reflective or specularly reflective, but has the effect of brightening the desk top surface 2005a of the desk 2005 placed in the interior of the room, and is in the room. In order to achieve both the effects of suppressing glare light that is unpleasant for humans, it is preferable that the characteristics of both are appropriately combined.
  • the light introduced into the room by the daylighting apparatus 2010 goes to the ceiling near the window 2002, but the light quantity in the vicinity of the window 2002 is often sufficient. Therefore, by using the light-reflective ceiling material 2003A as described above, the light incident on the ceiling (region E) near the window can be distributed to the back side of the room where the amount of light is smaller than that near the window.
  • the light-reflective ceiling material 2003A is formed by embossing a metal plate such as aluminum with unevenness of about several tens of micrometers, or by depositing a metal thin film such as aluminum on the surface of a resin substrate on which similar unevenness is formed. Can be produced. Or the unevenness
  • the emboss shape formed on the light-reflective ceiling material 2003A it is possible to control the light distribution characteristics and the light distribution in the room. For example, when embossing is performed in a stripe shape extending to the back side in the room, the light reflected by the light-reflective ceiling material 2003A spreads in the left-right direction of the window 2002 (direction intersecting the longitudinal direction of the unevenness). . When the size and orientation of the window 2002 are limited, using such characteristics, the light reflecting ceiling material 2003A diffuses light in the horizontal direction and reflects it toward the back of the room. be able to.
  • the lighting device 2010 is used as a part of the lighting system of the room 2003.
  • the lighting system includes, for example, components of the entire room including a lighting device 2010, a plurality of indoor lighting devices 2007, a control system thereof, and a light-reflective ceiling material 2003A installed on the ceiling 2003a. .
  • a lighting device 2010 is installed in the window 2002 of the room 2003.
  • the daylighting apparatus 2010 any one daylighting apparatus from the first to fifth embodiments described above is used.
  • a plurality of indoor lighting devices 2007 are arranged in a grid in the left-right direction (Y direction) of the window 2002 and the depth direction (X direction) of the room.
  • the plurality of indoor lighting devices 2007 together with the daylighting device 2010 constitute an entire lighting system of the room 2003.
  • the length L1 in the width direction of the room 2003 is 18 m
  • the length L2 in the depth direction (X direction) of the room 2003 is 9 m.
  • An office ceiling 2003a is shown.
  • the indoor lighting devices 2007 are arranged in a grid pattern with an interval P of 1.8 m in the horizontal direction (Y direction) and the depth direction (X direction) of the ceiling 2003a. More specifically, 50 indoor lighting devices 2007 are arranged in 10 rows (Y direction) ⁇ 5 columns (X direction).
  • the indoor lighting device 2007 includes an indoor lighting fixture 2007a, a brightness detection unit 2007b, and a control unit 2007c.
  • the indoor lighting device 2007 has a configuration in which a brightness detection unit 2007b and a control unit 2007c are integrated with an indoor lighting fixture 2007a.
  • the indoor lighting device 2007 may include a plurality of indoor lighting fixtures 2007a and a plurality of brightness detection units 2007b. However, one brightness detection unit 2007b is provided for each indoor lighting device 2007a.
  • the brightness detection unit 2007b receives the reflected light of the irradiated surface illuminated by the indoor lighting fixture 2007a, and detects the illuminance of the irradiated surface.
  • the brightness detector 200b detects the illuminance of the desk surface 2005a of the desk 2005 placed indoors.
  • the control units 2007c provided one by one in the room lighting device 2007 are connected to each other.
  • Each indoor lighting device 2007 is configured such that the illuminance of the desk top surface 2005a detected by each brightness detecting unit 2007b becomes a constant target illuminance L0 (for example, average illuminance: 750 lx) by the control units 2007c connected to each other.
  • Feedback control is performed to adjust the light output of the LED lamp of each indoor lighting fixture 2007a.
  • FIG. 20 is a graph showing the relationship between the illuminance of light (natural light) taken indoors by the daylighting device and the illuminance (illumination system) by the indoor lighting device.
  • the vertical axis indicates the illuminance (lx) on the desk surface
  • the horizontal axis indicates the distance (m) from the window.
  • the broken line in a figure shows indoor target illumination intensity. ( ⁇ : Illuminance by lighting device, ⁇ : Illuminance by indoor lighting device, ⁇ : Total illumination)
  • the illuminance on the desk surface caused by the light collected by the lighting device 2010 is brighter in the vicinity of the window, and the effect becomes smaller as the distance from the window increases.
  • the daylighting device 2010 is used in combination with the indoor lighting device 2007 that compensates for the illuminance distribution in the room.
  • the indoor lighting devices 2007 installed on the ceiling of the room are controlled by dimming so that the average illuminance below each device is detected by the brightness detection unit 2007b and the desk surface illuminance of the entire room becomes a constant target illuminance L0. Lights up. Therefore, the S1 row and the S2 row installed in the vicinity of the window are hardly lit, and are lit while increasing the output toward the back side of the room, such as the S3 row, the S4 row, and the S5 row. As a result, the desk surface of the room is illuminated by both natural lighting and lighting by the indoor lighting device 2007, and the desk surface illumination is 750 lx (“JIS Z9110 general lighting rules), which is sufficient for work throughout the room. "Recommended maintenance illuminance in the office”.
  • the daylighting device 2010 and the lighting system indoor lighting device 2007
  • One embodiment of the present invention can be used in a daylighting apparatus for taking in outside light such as sunlight into a room and an illumination system for illuminating the room.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Selon un mode de la présente invention, un dispositif d'éclairage naturel est un dispositif d'éclairage naturel qui peut être plié comprenant une feuille d'éclairage naturel ayant une pluralité de parties d'éclairage naturel, chacune étant perméable à la lumière sur un premier côté de surface. Dans la direction de pliage, la feuille d'éclairage naturel comporte trois régions d'éclairage naturel ou plus ayant les parties d'éclairage naturel, et est constituée d'une manière telle que les régions d'éclairage naturel peuvent être pliées de façon à s'empiler les unes contre les autres dans la direction de pliage. Au moins dans une partie de celle-ci, la feuille d'éclairage naturel peut alterner entre un état d'éclairage naturel dans lequel les régions d'éclairage naturel sont à plat, et un second état dans lequel les régions d'éclairage naturel ont été pliées.
PCT/JP2018/005021 2017-02-14 2018-02-14 Dispositif d'éclairage naturel WO2018151136A1 (fr)

Applications Claiming Priority (2)

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JP2017025013 2017-02-14
JP2017-025013 2017-02-14

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WO2018151136A1 true WO2018151136A1 (fr) 2018-08-23

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010077709A (ja) * 2008-09-26 2010-04-08 Yokota Ryohan Kk アコーディオンドア
WO2015098940A1 (fr) * 2013-12-25 2015-07-02 シャープ株式会社 Élément laissant passer la lumière naturelle, vitre, store et persienne laissant passer la lumière naturelle
JP2017002705A (ja) * 2015-06-09 2017-01-05 岡田装飾金物株式会社 開閉構造及びその形成方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010077709A (ja) * 2008-09-26 2010-04-08 Yokota Ryohan Kk アコーディオンドア
WO2015098940A1 (fr) * 2013-12-25 2015-07-02 シャープ株式会社 Élément laissant passer la lumière naturelle, vitre, store et persienne laissant passer la lumière naturelle
JP2017002705A (ja) * 2015-06-09 2017-01-05 岡田装飾金物株式会社 開閉構造及びその形成方法

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