JP5324167B2 - Daylighting equipment - Google Patents

Description

  The present invention relates to a daylighting apparatus for introducing sunlight into an indoor space to illuminate the indoor space.

  2. Description of the Related Art In recent years, daylighting devices for illuminating indoors by introducing sunlight into the indoors are known (see, for example, Patent Document 1). This daylighting device is provided on the roof of a building, provided with a daylighting means for introducing sunlight, a cylindrical light guide means for guiding light from the daylighting means in a predetermined direction while reflecting the light from its inner surface, and an indoor ceiling And irradiating means for irradiating light from the light guiding means indoors.

  The daylighting means includes a dome member and a mounting member. The attachment member includes a base portion attached to the roof and a cylindrical support portion extending upward from the base portion, and the dome member is attached to the support portion. The irradiation means is composed of a diffusion cover member, and is attached to the indoor ceiling via a fixing ring. The light guide means is composed of a plurality of cylindrical members connected to each other. One end portion of the light guide means is connected to the support portion of the mounting member through an opening provided in the roof, and the other end portion is connected to the diffusion cover member through the fixing ring through the opening provided in the ceiling.

JP 2006-54071 A

  However, the conventional daylighting apparatus as described above has the following problems. First, when installing a daylighting device in a building, for example, the light guiding means must pass through a storage space such as a closet or a closet, or a living space such as a study or a living room. There is a problem that the effective space in the interior is narrowed.

  Second, if a daylighting device is installed in a building in a relatively large amount of snow, if the snow falls on the roof of the building, the dome member of the daylighting means will be buried in the snow, and sunlight will be lost. There is a problem that it cannot be introduced indoors.

An object of the present invention is to provide a daylighting apparatus capable of installing a light guiding means without narrowing an effective space inside a building.
Another object of the present invention is to provide a daylighting apparatus that can introduce sunlight into a room even when snow falls on the roof.

In the daylighting apparatus according to the first aspect of the present invention, the daylighting means for introducing sunlight, the cylindrical light guide means for guiding the light from the daylighting means in a predetermined direction while reflecting the light from the inner surface thereof, and the light guide In a daylighting apparatus provided with irradiation means for irradiating light from the means indoors,
The daylighting means is attached to the outside of the building, at least a part of the light guiding means is disposed in a wall space of the building, and an introduction portion of the light guiding means is connected to the daylighting means through the wall space. The lead-out part is connected to the irradiation means through the space in the wall ;
The irradiating means has a plurality of irradiating portions, and the light guiding means includes a connection light guiding tube disposed in the inner space, a plurality of first light guiding tubes, and a plurality of second light guiding tubes. And having
The introduction portion of the connection light guide tube is provided with a first attachment plate, and the lead portion of the connection light guide tube is provided with a second attachment plate,
Each of the plurality of first light guide tubes is inserted and held in a plurality of through holes provided in the first attachment plate, and each of the plurality of second light guide tubes is attached to the second attachment plate. Inserted and held in a plurality of through-holes provided,
Each introduction part of the plurality of first light guide tubes is connected to the daylighting means through the space in the wall, and each lead-out part of the plurality of second light guide tubes is respectively connected to the plurality of irradiation parts through the space in the wall. concatenated characterized Rukoto.

Further, in the daylighting apparatus according to claim 2 of the present invention, the daylighting means includes an attachment member attached to the outside of the building and a dome member attached to the attachment member, The base part and a cylindrical support part extending from the base part, the dome member is attached to the support part, and an attachment member is attached to the opening of the support part, and the attachment The member is provided with a plurality of through holes into which the introduction portions of the plurality of first light guide tubes are inserted and held.

In the daylighting device according to claim 3 of the present invention, a ring-shaped locking portion is provided on the outer peripheral portion of the mounting member, and the locking portion is locked to the opening edge of the support portion. It is characterized by that.
In the daylighting device according to claim 4 of the present invention, the daylighting means includes an attachment member attached to the outside of the building, and a dome member attached to the attachment member. It is composed of a base part and a cylindrical support part extending from the base part,
The light guide means further includes a cylindrical light guide member attached to the daylighting means, and each lead-in portion of the plurality of first light guide tubes is attached to a lead-out portion of the cylindrical light guide member ,
The cylindrical light guide member includes a first taper portion whose transverse area is enlarged from the daylighting means side to the irradiation means side, and a second taper portion whose transverse area is reduced from the daylighting means side to the irradiation means side. And the first taper portion is provided on the introduction portion side of the cylindrical light guide member, and the second taper portion is provided on the lead portion side of the cylindrical light guide member, and passes through the dome member. The introduced sunlight is reflected by the reflection surface formed on the inner surface of the second taper portion, and then reflected by the reflection surface formed on the inner surface of the first taper portion, and the plurality of first light guides. It is guided to the inside of the tube .

According to the daylighting device of the first aspect of the present invention, since at least a part of the light guide means is disposed in the space in the wall of the building, for example, an effective space inside the building such as a storage space or a living space is reduced. The light guiding means can be arranged without narrowing.
Further, since the light guide means has a connection light guide tube disposed in the wall space, a connection light guide tube is disposed in the wall space, and a plurality of introduction light guide portions and a plurality of guide light guide portions are provided in the space. The light guide means can be disposed by a relatively simple operation of connecting the first and second light guide tubes.

According to the daylighting device of the second aspect of the present invention, the mounting member is attached to the opening of the support portion, and each of the plurality of first light guide tubes of the light guide means is installed on the mounting member. Since the plurality of through-holes through which the portion is inserted and held are provided , the introduction portions and the support portions of the plurality of first light guide tubes of the light guide means can be easily connected.

Moreover, according to the lighting device of the third aspect of the present invention, the locking portion can be locked to the opening edge of the support portion.
According to the daylighting device of the fourth aspect of the present invention, the cylindrical light guide member attached to the daylighting means has the first and second taper portions, and from the daylighting means to the inside of the cylindrical light guide member. light guided from the is reflected by the inner surface of the first taper portion after being reflected by the inner surface of the second tapered portion, since the reflected light is guided to the interior of the plurality of guide tubes, solar It can guide efficiently to the inside of a plurality of light guide tubes.

Hereinafter, various embodiments of a daylighting device according to the present invention will be described with reference to the accompanying drawings.
[First Embodiment]
First, with reference to FIGS. 1-6, the lighting apparatus of 1st Embodiment is demonstrated. FIG. 1 is a schematic cross-sectional view showing a daylighting apparatus according to a first embodiment of the present invention, FIG. 2 is a partial enlarged cross-sectional view of the daylighting apparatus of FIG. 1, and FIG. 4 is an exploded perspective view, FIG. 4 is a schematic cross-sectional view of a plurality of light guide tubes arranged in the wall space along the line AA in FIG. 1, and FIG. 5 is a bend in the lighting device of FIG. FIG. 6 is a schematic cross-sectional view showing a state where the tubular member is not bent, and FIG. 6 is a view showing the bent tubular member of FIG. 5 bent at an angle of about 90 degrees.

  In FIG. 1, the illustrated daylighting device 2 is guided by a daylighting means 4 for introducing sunlight, a light guiding means 6 for guiding light from the daylighting means 4 in a predetermined direction while reflecting the light from the inner surface, and a light guiding means 6. Irradiating means 8 for irradiating the emitted light indoors. Hereinafter, the configuration of the daylighting apparatus 2 will be described in detail.

  The daylighting means 4 includes an attachment member 10 and a dome member 12 attached to the attachment member 10. The mounting member 10 is formed of, for example, a metal such as galvanium, aluminum or copper, fiber reinforced plastic (FRP), or the like, and has a base portion 18 attached to the roof 16 of the building 14 and a cylindrical shape extending upward from the base portion 18. The support part 20 is comprised. A disc-shaped attachment member 22 is detachably attached to the opening of the support portion 20 (see FIGS. 2 and 3). The mounting member 22 is provided with a plurality of through holes 24 through which the respective introduction portions of a plurality of light guide tubes 68a, 68b, 68c, which will be described later, are inserted and held, and a ring-shaped locking portion 26 is provided on the outer periphery thereof. Is provided. With the introduction parts of the light guide tubes 68 a, 68 b, 68 c inserted and held in the through holes 24, the locking part 26 is detachably locked to the opening edge of the support part 20.

  The dome member 12 is formed of, for example, a synthetic resin such as transparent acrylic or polycarbonate, and has a substantially hemispherical shape. A condensing reflection plate 28 that is curved in an arc shape is attached to the inner surface of the dome member 12, and a reflection surface for collecting sunlight is formed on the concave surface side of the condensing reflection plate 28. . The dome member 12 is attached to the support portion 20 using a plurality of attachment screws 30 so as to cover the opening.

  The irradiation unit 8 includes a plurality of irradiation units 32a, 32b, and 32c, and each irradiation unit 32a, 32b, and 32c includes a substantially hemispherical diffusion cover member 34. The diffusion cover member 34 is formed of a synthetic resin such as translucent acrylic or plastic, for example. A plurality of arc-shaped locking projections 36 extending inward in the radial direction are provided in the opening of the diffusion cover member 34 (see FIG. 2). The diffusion cover member 34 is attached to the indoor ceilings 40, 42 or the inner wall 44 via a fixing ring 38, and the fixing ring 38 includes an attachment ring member 46 and a decorative ring member 48. The attachment ring member 46 includes a ring main body portion 50, a cylindrical portion 52 extending upward from the inner peripheral portion of the ring main body portion 50, and a ring-shaped attachment portion extending radially inward from the inner peripheral portion of the ring main body portion 50. 54. A plurality of locking recesses 56 are provided on the outer peripheral portion of the ring main body 50 so as to correspond to the plurality of locking protrusions 36 of the diffusion cover member 34. The decorative ring member 48 includes a ring-shaped attachment main body portion 58 and a ring-shaped decoration portion 60 provided on the outer peripheral portion of the attachment main body portion 58. A ring-shaped dew condensation prevention seal member 62 is attached to the lower surface of the attachment main body 58 over the entire circumference.

  The diffusion cover member 34 is attached to the indoor ceiling 40 as follows, for example. First, a circular opening 64 penetrating the indoor ceiling 40 is provided, and a decorative ring member 48 is disposed outside the opening 64. The ring main body portion 50 of the attachment ring member 46 is attached to the inner peripheral portion of the attachment main body portion 58 of the decorative ring member 48 via the dew condensation prevention seal member 62, and the attachment ring member 46 and the decorative ring member 48 are attached using the attachment screws 66. Are attached to the indoor ceiling 40, respectively. By locking the locking protrusions 36 of the diffusion cover member 34 in the locking recesses 56 of the mounting ring member 46 thus mounted, the diffusion cover member 34 is attached to the indoor ceiling 40 via the fixing ring 38. It is attached.

  The light guide means 6 has a plurality of light guide tubes 68a, 68b, 68c. The light guide tube 68a includes a lighting side cylindrical member 70 connected to the support part 20 of the lighting means 4, an irradiation side cylindrical member 72 connected to the irradiation part 32a, a lighting side cylindrical member 70, and an irradiation side cylinder. And a plurality of intermediate cylindrical members 74 connected between the cylindrical members 72. Each of the light guide tubes 68b and 68c includes a lighting side tubular member 70, a plurality of intermediate tubular members 74, and a plurality of bent tubular members 76.

  A reflective surface is formed on the inner surface of each of the cylindrical members 70 to 76, and this reflective surface is formed by sticking a reflective material such as an aluminum film, or vapor deposition of aluminum. Moreover, each cylindrical member 70-76 is formed in the taper shape where the outer diameter of the one end side is somewhat smaller than the outer diameter of the other end side, respectively. Ring-shaped locked portions 78 and 80 extending outward in the radial direction are provided at one end of the lighting-side tubular member 70 and the other end of the irradiation-side tubular member 72, respectively.

  The bent tubular member 76 is composed of four tubular bodies 82 that are rotatably connected to each other (see FIG. 5). The open ends of the tubular bodies 82 connected to each other are inclined at an angle of about 60 degrees with respect to the axis C, and the open ends on the outside of the tubular bodies 82 disposed on both sides are respectively axis lines. It is configured substantially perpendicular to C. Further, each of the opening ends of the cylindrical body 82 is provided with a ring-shaped fitting protrusion 84 that protrudes somewhat outward in the radial direction, and the other opening end of the cylindrical body 82 is respectively provided with A ring-shaped fitting recess 86 that is slidably fitted to the fitting protrusion 84 is provided. Thereby, one cylindrical body 82 of a pair of adjacent cylindrical bodies 82 can be rotated with respect to the other cylindrical body 82 as shown by an arrow in FIG. By moving, one cylindrical body 82 is freely bent in an angle range of 0 degrees to 30 degrees with respect to the other cylindrical body 82, and therefore, the bent cylindrical member 76 as a whole is 0 degrees to 90 degrees. It can be freely bent at an arbitrary angle within an angle range (see FIG. 6). In FIGS. 1 and 2, the fitting protrusion 84 and the fitting recess 86 are not shown.

  For example, from the state where the bent cylindrical member 76 extends linearly (that is, the state where the bending angle is about 0 degree), the cylindrical body 82 on one end side is about 30 degrees with respect to the adjacent cylindrical body 82. When bent at an angle, the bent tubular member 76 is bent at an angle of about 30 degrees as a whole. Further, when this cylindrical body 82 is bent at an angle of about 30 degrees with respect to the adjacent cylindrical body 82, the bent cylindrical member 76 is bent at an angle of about 60 degrees as a whole. Furthermore, when this cylindrical body 82 is bent at an angle of about 30 degrees with respect to the cylindrical body 82 on the other end side adjacent thereto, the bent cylindrical member 76 is bent at an angle of about 90 degrees as a whole. The It should be noted that the outer diameter on one end side of the bent tubular member 76 is configured to be somewhat smaller than the outer diameter on the other end side.

  The light guide means 6 is disposed inside the building 14 as follows. First, a method for arranging the light guide tube 68a will be described. One end portion of the lighting-side cylindrical member 70 (that is, the introduction portion of the light guide tube 68a) is inserted into the through hole 24 of the mounting member 22 through the opening 88 provided in the roof 16 and the inside of the support portion 20, and the covered portion thereof. The locking portion 78 is locked to the inner peripheral edge portion of the through hole 24 of the mounting member 22. One end portion of the intermediate cylindrical member 74 is inserted into the interior of the lighting side cylindrical member 70 by a predetermined length from the other end portion thereof, and the other end portion of the lighting side cylindrical member 70 and one end portion of the intermediate cylindrical member 74 are For example, an aluminum tape (not shown) or the like is attached to the joint of the two to connect them to each other. Similarly, the lighting side cylindrical member 70, the plurality of intermediate cylindrical members 74, and the irradiation side cylindrical member 72 are connected to each other in this order, thereby forming the light guide tube 68a. Further, the locked portion 80 of the irradiation side cylindrical member 72 is locked to the mounting portion 54 of the mounting ring member 46 through the opening 64 provided in the ceiling 40 of the second floor portion, and further, the locked portion of the irradiation side cylindrical member 72 is engaged. By attaching a fixing tube member 90 formed of rubber or the like between the stopper 80 and the cylindrical portion 52 of the attachment ring member 46, the other end portion of the irradiation-side cylindrical member 72 (that is, the light guide). The lead-out portion of the tube 68 a is connected to the irradiation portion 32 a through the fixing ring 38. In this way, the light guide tube 68a is disposed to extend downward from the daylighting means 4 toward the irradiation unit 32a in the attic space 92 of the building 14.

  Next, a method for arranging the light guide tubes 68b and 68c will be described. The light guide tube 68b is bent about 90 degrees after extending downward from the attic space 92 of the building 14 from the daylighting means 4, and further bent approximately 90 degrees after extending in the substantially horizontal direction, and is provided in the inner wall 44. 94 extends into the wall space 96 (that is, the space formed between the outer wall 100 disposed on the outdoor side of the column member 98 and the inner wall 44 disposed on the indoor side of the column member 98) (see FIG. 1 and FIG. 4). The light guide tube 68b extends downward along the inner space 96 and then bends about 90 degrees. Through the opening 102 provided in the inner wall 44, the light guide tube 68b passes through the ceiling back space 104 in a substantially horizontal direction. After extending, it is bent about 90 degrees again and connected to the irradiation part 32b attached to the ceiling 42 of the first floor. Similarly to the light guide tube 68b, the light guide tube 68c is disposed through the attic space 92 and the in-wall space 96, and is bent about 90 degrees after extending through the in-wall space 96. It is connected to the irradiation unit 32 c attached to 44.

  Indoor lighting by the lighting device 2 of the present embodiment is performed as follows. The sunlight introduced through the dome member 12 of the daylighting means 4 is reflected on the concave surface side of the condensing reflection plate 28 mounted in the dome member 12 when the solar altitude is low such as sunrise or sunset, and the light guide tube 68a, The light is guided to the inside of the light guide tubes 68a, 68b, 68c from the opening of the support portion 20 when the solar altitude is high such as during the daytime. The light thus guided is guided in a predetermined direction (that is, the direction in which the irradiation means 8 is disposed) while being irregularly reflected on the inner surfaces of the light guide tubes 68a, 68b, 68c, and the light guide tubes 68a, 68b. , 68c. The light emitted from the lead-out portion of the light guide tube 68a is diffused and irradiated into the second floor room through the diffusion cover member 34 of the irradiation portion 32a, and the light emitted from the lead-out portions of the light guide tubes 68b and 68c is respectively The first floor room is diffused and irradiated through the diffusion cover member 34 of the irradiation parts 32b and 32c.

  In the lighting device 2 of the present embodiment, as described above, the light guide tube 68a is disposed in the attic space 92 of the building 14, and the light guide tubes 68b and 68c are the attic space 92, the in-wall space 96 of the building 14, and Since it arrange | positions through the ceiling back space 104, the light guide means 6 can be arrange | positioned, without narrowing the effective space inside the building 14, such as storage space and a living space, for example.

  In the present embodiment, a part of the light guide tubes 68b and 68c is disposed in the inner wall space 96 formed between the outer wall 100 and the inner wall 44, but the inner wall formed between the pair of inner walls is not limited. You may arrange | position in space.

  Moreover, in this embodiment, although the introduction part of light guide tube 68a, 68b, 68c was attached to the support part 20 via the mounting member 22, you may attach as follows, for example. That is, a hook member is provided on the outer peripheral surface of each introduction portion of the light guide tubes 68a, 68b, 68c, and this hook member is locked to the opening edge portion of the support portion 20, whereby the light guide tubes 68a, 68b, 68c. These introduction portions may be attached to the support portion 20.

  In the present embodiment, the light guide means 6 is composed of a plurality of light guide tubes 68a, 68b, 68c having substantially the same outer diameter, but may be composed of a plurality of light guide tubes having different outer diameters, or You may comprise from one light guide tube.

[Second Embodiment]
Next, a daylighting apparatus according to a second embodiment will be described with reference to FIGS. FIG. 7 is a schematic cross-sectional view of a daylighting apparatus according to the second embodiment of the present invention, and FIG. 8 is an outline of a light guide tube for connection arranged in a wall space along line BB in FIG. FIG. 9 is a schematic perspective view showing the connection light guide tube of FIG. 7. Note that in the following embodiments, substantially the same components as those in the first embodiment are given the same reference numerals, and descriptions thereof are omitted.

  7 to 9, in the daylighting device 2 </ b> A according to the second embodiment, the light guide unit 6 </ b> A includes a cylindrical light guide member 106 attached to the support unit 20 of the daylighting unit 4, and a wall space 96 of the building 14. A connection light guide tube 108, a plurality of first light guide tubes 110 connected between the introduction portion of the connection light guide tube 108 and the cylindrical light guide member 106, and a connection light guide A plurality of second light guide tubes 112 connected to the lead-out portion of the tube 108.

  The cylindrical light guide member 106 has a first taper portion 114 whose transverse area is enlarged from the daylighting means 4 side to the irradiation means (not shown) side, and a transverse area is reduced from the daylighting means 4 side to the irradiation means side. The first taper portion 114 is provided on the introduction portion side of the cylindrical light guide member 106, and the second taper portion 116 is provided on the lead portion side of the cylindrical light guide member 106. Is provided. Reflective surfaces are formed on the inner surfaces of the first and second taper portions 114 and 116, respectively. A ring-shaped locking portion 118 extending radially outward is provided at the opening edge of the cylindrical light guide member 106 on the introduction portion side, and the locking portion 118 is locked to the opening edge of the support portion 20. As a result, the cylindrical light guide member 106 is disposed inside the support portion 20. The introduction portions of the plurality of first light guide tubes 110 are inserted and attached to the lead-out portion of the cylindrical light guide member 106.

  The first light guide tube 110 is configured by connecting a lighting side tubular member 70, an intermediate tubular member 74, and a plurality of bent tubular members 76 to each other. The second light guide tube 112 is configured by connecting an irradiation side cylindrical member (not shown), an intermediate cylindrical member 74, and a plurality of bent cylindrical members 76 to each other. The connection light guide tube 108 is formed in a cylindrical shape having an elliptical cross section, and mounting plates 120 and 122 are provided at the introduction portion and the lead-out portion, respectively (see FIG. 9). The attachment plate 120 is provided with a plurality of through holes 124 through which the respective lead-out portions of the plurality of first light guide tubes 110 are inserted and held, and the attachment plate 122 is provided with each introduction of the plurality of second light guide tubes 112. A plurality of through holes 126 through which the portion is inserted and held are provided.

  In the daylighting apparatus 2A of the present embodiment, the light guide means 6A is arranged as follows. Each of the plurality of first light guide tubes 110 is bent about 90 degrees after extending downward in the attic space 92 of the building 14 from the daylighting means 4, and further bent about 90 degrees again after extending in a substantially horizontal direction. Each of the plurality of first light guide tubes 110 extends into the inner space 96 through the opening 94 provided in the inner wall 44 and is connected to the introduction portion of the connection light guide tube 108. The connecting light guide tube 108 is disposed so as to extend downward along the in-wall space 96. The plurality of second light guide tubes 112 extend from the lead-out portion of the connection light guide tube 108 and are disposed in the in-wall space 96, the ceiling space 104, and the like, and are respectively connected to the plurality of irradiation units (not shown). The

  Indoor lighting by the daylighting apparatus 2A of the present embodiment is performed as follows. Sunlight introduced through the dome member 12 of the daylighting means 4 is guided to the inside of the cylindrical light guide member 106 and reflected by the reflection surface formed on the inner surface of the second taper portion 116, and then the first taper. The light reflected by the reflecting surface formed on the inner surface of the portion 114 is guided into the plurality of first light guide tubes 110. The light is guided in a predetermined direction while irregularly reflecting the inner surfaces of the plurality of first light guide tubes 110, the connection light guide tubes 108, and the plurality of second light guide tubes 112, and is emitted from the plurality of irradiation units. Is done.

  In the daylighting apparatus 2A of the present embodiment, the connection light guide tube 108 is disposed in the wall space 96, and a plurality of first and second light guide tubes 110 and 112 are connected to the introduction part and the lead-out part, respectively. Since it is good, arrangement | positioning of 6 A of light guides can be performed easily.

[Third Embodiment]
Next, a daylighting apparatus according to a third embodiment will be described with reference to FIGS. 10 is a schematic cross-sectional view showing a daylighting apparatus according to a third embodiment of the present invention, FIG. 11 is a perspective view showing a branched light guide portion of the light guide means of FIG. 10, and FIG. 10 is a schematic cross-sectional view of a light guide unit disposed inside the building along line CC in FIG.

  In FIG. 10, in the daylighting device 2B of the third embodiment, a cylindrical support 128 that extends through the interior of the building 14B and extends in the vertical direction is disposed, and this cylindrical support 128 is the main part of the building 14B. It is connected and fixed to a pillar (not shown). The upper end part of the cylindrical support body 128 extends upward through an opening 88B provided in the roof 16B, and the lower end part thereof is fixed to the floor 130 of the second floor part.

  The mounting member 10B of the daylighting means 4B is composed of a plate-like base portion 18B and a support portion 20 extending upward from the base portion 18B, and a cylindrical shape extending downwardly on the outer peripheral portion of the base portion 18B. A side cover portion 134 is provided. The attachment member 10 </ b> B is attached to the upper end portion of the cylindrical support body 128 so that the side cover portion 134 of the base portion 18 </ b> B covers the outer peripheral portion of the upper end portion of the cylindrical support body 128.

  Further, the irradiation unit 8B includes a main irradiation unit 136 and a plurality of sub irradiation units 138. The main irradiation unit 136 is configured by a substantially hemispherical diffusion cover member 34, and the sub irradiation unit 138 is configured by a plate-shaped diffusion cover member 140.

  The light guide unit 6 </ b> B includes a main light unit 142 and a plurality of branch light guide units 144 extending from the side surface of the main light unit 142. The main light guide unit 142 is configured by connecting the lighting side tubular member 70, the irradiation side tubular member 72, the plurality of intermediate tubular members 74, and the branched tubular member 146 to each other. The branched cylindrical member 146 includes a main body cylindrical portion 148 and a plurality of branched cylindrical portions 150 extending from the side surface of the main body cylindrical portion 148, and the branched cylindrical portion 150 serves as the branched light guide portion 144. Function as. The main light guide portion 142 is disposed so as to extend in the vertical direction inside the cylindrical support body 128, and the introduction portion of the main light guide portion 142 extends upward through the upper end opening of the cylindrical support body 128 to support the support portion 20. The lead-out part extends downward through the lower end opening of the cylindrical support 128 and is connected to a main irradiation part 136 provided on the ceiling 42B of the first floor part. Moreover, the some branch light guide part 144 is arrange | positioned corresponding to the floor plan 152 of the building 14B (refer FIG. 12). A lead-out part of the branch light guide part 144 is attached to an opening 154 provided on a side surface of the cylindrical support 128, and a sub-irradiation part 138 is connected to the lead-out part.

  The protruding length L of the upper end portion of the cylindrical support 128 extending from the roof 16B is preferably set longer than the snow cover amount D in the area where the daylighting device 2B is installed. For example, the snow cover amount is 0.8 m. In the region, it is preferable that the protruding length L of the upper end portion of the cylindrical support 128 is set to about 1.0 m to 1.2 m which is longer than the snow accumulation amount of 0.8 m. By setting the length L of the upper end portion of the cylindrical support body 128 in this way, for example, when snow falls on the roof 16B, the dome member 12 can be positioned above the snow. Therefore, the dome member 12 is not buried in the snow, and sunlight can be reliably irradiated indoors. Moreover, since the several branch light guide part 144 is arrange | positioned corresponding to the floor plan 152 of the building 14B, it can irradiate sunlight indoors efficiently.

  As mentioned above, although various embodiment of the lighting device according to this invention was described, this invention is not limited to this embodiment, A various deformation | transformation thru | or correction | amendment are possible without deviating from the scope of the present invention.

1 is a schematic cross-sectional view showing a daylighting device according to a first embodiment of the present invention. It is a partial expanded sectional view of the lighting device of FIG. It is a disassembled perspective view of the lighting means of FIG. It is a schematic sectional drawing of the several light guide tube arrange | positioned in the wall space by the AA line in FIG. It is a schematic sectional drawing shown in the state which does not bend the bending cylindrical member in the lighting apparatus of FIG. FIG. 6 is a diagram showing the bent cylindrical member of FIG. 5 in a state where the bent cylindrical member is bent at an angle of about 90 degrees. It is a schematic sectional drawing of the daylighting apparatus by the 2nd Embodiment of this invention. It is a schematic sectional drawing of the light guide tube for a connection arrange | positioned in the wall space by the BB line in FIG. It is a schematic perspective view which shows the light guide tube for a connection of FIG. It is a schematic sectional drawing which shows the daylighting apparatus by the 3rd Embodiment of this invention. It is a perspective view which shows the branch light guide part of the light guide means of FIG. It is a schematic sectional drawing of the light guide means arrange | positioned by the CC line in FIG. 10 inside the building.

Explanation of symbols

2, 2A, 2B Daylighting device 4, 4B Daylighting means 6, 6A, 6B Light guiding means 8, 8B Irradiation means 10, 10B Mounting member 12 Dome member 14, 14B Building 18, 18B Base part 20 Supporting part 22 Mounting member 24 Through-hole 68a, 68b, 68c Light guide tube 96 Wall space 106 Tubular light guide member 108 Light guide tube for connection 110 First light guide tube 112 Second light guide tube 114 First taper portion 116 Second taper portion 128 Tube -Shaped support 136 Main irradiation part 138 Sub irradiation part 142 Main light guide part 144 Branch light guide part

Claims (4)

Daylighting means for introducing sunlight, cylindrical light guide means for guiding light from the daylighting means in a predetermined direction while reflecting the light from the inner surface thereof, and irradiation means for irradiating light from the light guide means indoors; In a daylighting apparatus comprising:
The daylighting means is attached to the outside of the building, at least a part of the light guiding means is disposed in a wall space of the building, and an introduction portion of the light guiding means is connected to the daylighting means through the wall space. The lead-out part is connected to the irradiation means through the space in the wall ;
The irradiating means has a plurality of irradiating portions, and the light guiding means includes a connection light guiding tube disposed in the inner space, a plurality of first light guiding tubes, and a plurality of second light guiding tubes. And having
The introduction portion of the connection light guide tube is provided with a first attachment plate, and the lead portion of the connection light guide tube is provided with a second attachment plate,
Each of the plurality of first light guide tubes is inserted and held in a plurality of through holes provided in the first attachment plate, and each of the plurality of second light guide tubes is attached to the second attachment plate. Inserted and held in a plurality of through-holes provided,
Each introduction part of the plurality of first light guide tubes is connected to the daylighting means through the space in the wall, and each lead-out part of the plurality of second light guide tubes is respectively connected to the plurality of irradiation parts through the space in the wall. linked lighting device according to claim Rukoto. The daylighting means includes an attachment member attached to the outside of the building and a dome member attached to the attachment member, and the attachment member has a base portion and a cylindrical support extending from the base portion. The dome member is attached to the support portion, and an attachment member is attached to the opening of the support portion, and each of the plurality of first light guide tubes is introduced to the attachment member. The daylighting device according to claim 1, wherein a plurality of through holes through which the portion is inserted and held are provided. The lighting device according to claim 2, wherein a ring-shaped locking portion is provided on an outer peripheral portion of the mounting member, and the locking portion is locked to an opening edge portion of the support portion.   The daylighting means includes an attachment member attached to the outside of the building and a dome member attached to the attachment member, and the attachment member has a base portion and a cylindrical support extending from the base portion. And consists of
  The light guide means further includes a cylindrical light guide member attached to the daylighting means, and each lead-in portion of the plurality of first light guide tubes is attached to a lead-out portion of the cylindrical light guide member,
  The cylindrical light guide member includes a first taper portion whose transverse area is enlarged from the daylighting means side to the irradiation means side, and a second taper portion whose transverse area is reduced from the daylighting means side to the irradiation means side. The first tapered portion is provided on the introduction portion side of the cylindrical light guide member, and the second tapered portion is provided on the lead portion side of the cylindrical light guide member,
  Sunlight introduced through the dome member is reflected by the reflecting surface formed on the inner surface of the second taper portion and then reflected by the reflecting surface formed on the inner surface of the first taper portion. The daylighting apparatus according to claim 1, wherein the daylighting apparatus is guided into the first light guide tube.

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