JP5645352B2 - Building using natural light - Google Patents

Description

  The present invention relates to a building using natural light, and more particularly to a building using natural light provided with a horizontal light guide duct having a height of 0.5 layers.

In recent years, various technologies for taking in natural light from the sun indoors have been developed for the purpose of energy saving and environmental protection by reducing carbon dioxide emissions. For example, natural light from the sun is guided to the inside of a building from a daylighting device provided on a wall or a roof via a light duct device extending in the lateral direction, and natural light is directed toward the living space below from this light duct device. Buildings that can emit light have been proposed (see, for example, Patent Document 1 and Patent Document 2).
JP 2004-39318 A JP 2004-319110 A

  However, in a building in which natural light from the sun is guided to the inside of the building through the conventional optical duct device, the optical duct device has a complicated structure and is expensive, and the height of the back of the ceiling is high. Since it is provided in a low and narrow space, it is not easy to maintain and manage, and a person cannot enter the inside of the optical duct device, so that much labor is required for cleaning and repair. Furthermore, the light exit for emitting the natural light guided through the optical duct device indoors is provided mainly in a limited direction, such as downward, and emits natural light only in a limited living space. Because it was not possible to do so, it could not be said that the natural light guided to the inside of the building through the light duct device could be used efficiently.

  The present invention has been made by paying attention to such a conventional problem, and devised the arrangement of the living space of the building to provide a light guide duct that is simple, inexpensive and easy to maintain in the middle part of the building. Providing a building using natural light that can be provided efficiently and can emit light in four directions from the light guide duct as required, and can efficiently use natural light and save energy. Objective.

In the present invention, the upper floor living space is adjacent to the upper floor living section provided with the lower floor living section below and the lower floor living section provided with the lower floor living section below with a height difference of 0.5 layers. And the end of the floor portion of the high-floor habitation section and the end of the floor portion of the low-floor habitation section on the side of the high-floor habitation section are arranged one above the other. Thus, in the space between the end portions that are placed one above the other in the vertical direction, the right and left side surfaces for light guide having a square or rectangular cross-sectional shape with a height of 0.5 layers divided by a partition wall The duct is provided indoors with four sides surrounded by a living part, and the light guide horizontal duct is provided with a light reflecting material on the inner peripheral surface, and natural light taken from the lighting port. Is guided in the lateral direction by the light guide horizontal duct, and the lower surface and both sides of the light guide horizontal duct. , And the upper surface light radiation opening is provided in, the light radiation opening provided in a portion or the whole of the surface, release the natural light to the lower floor residential unit and the raised floor residential unit and the low-floor residence portion around The above object is achieved by providing a building using natural light that can be illuminated.

  Here, the height of 0.5 layers in the above description is abbreviated to the height located in the middle part of the height of one layer generally having a height of about 230 to 360 cm. In addition to the height of 1/2 of the height, the height includes about 40 to 63% of the height of one layer.

  In the natural light utilization building of the present invention, a storage for a height of 0.5 layers is provided in the lower-floor living space below the high-floor living portion and / or the upper-floor living space above the low-floor living portion. It is preferable to be provided.

  Further, in the building using natural light of the present invention, the daylighting port has a lower end connected to the light guide horizontal duct and extends in the vertical direction, and the upper end opens to the roof portion or the rooftop portion of the building. Natural light is formed on the light guide vertical duct and the light guide horizontal duct by the daylighting device formed at the upper end of the light guide vertical duct having a light reflecting material attached to the inner peripheral surface. It is preferable to take in.

  Further, in the natural light-use building of the present invention, the light guide horizontal duct and the light guide vertical duct are configured by installing a light guide duct pipe inside thereof, and the light guide horizontal duct And a ventilation path is held between the inner peripheral surface of the light guide vertical duct and the outer peripheral surface of the light guide duct pipe, and the air passage rises through the ventilation path passing through the light guide vertical duct. It is preferable that the living space can be ventilated by the airflow.

  Furthermore, in the building using natural light according to the present invention, a part of the horizontal light guide duct is expanded downward at a height of 0.5 layers from the floor part of the low floor living part. It is preferable that a vertical light emitting portion protruding downward is formed.

  Moreover, it is preferable that the natural light utilization building of this invention is provided with the accommodating part which can be utilized from the lower floor living space in the part directly under the said vertical light emission part.

  Further, in the building utilizing natural light of the present invention, it is preferable that the inner peripheral surface of the surrounding living space where natural light is emitted from the lateral light guide duct is finished with a photocatalytic material.

And according to the natural light utilization building of the present invention, the horizontal light guide duct is arranged adjacent to the upper floor living space with the high floor living part and the low floor living part adjacent to each other with a height difference of 0.5 layers, By arranging the adjacent ends of the floor portion of the high-floor habitation section and the floor portion of the low-floor habitation section in an up-and-down direction, the space between the overlapping end portions is 0.5 layers. Because it is formed so as to have a height, for example, in a building where a floor storage for 0.5 layers and a colonnade are provided in a part of the living space, adjacent to a portion having a height difference of 0.5 layers It is possible to easily and efficiently provide a light guide lateral duct in the middle part of the building surrounded by the living part on the four sides using the floor part between the living parts.

In addition, the horizontal light guide duct has a height of 0.5 layers formed by vertically stacking the end portions on the adjacent sides of the floor portion of the high floor living portion and the floor portion of the low floor living portion. Is formed to have a square or rectangular cross-sectional shape, and for example, has a size that allows a person to easily enter the light guide horizontal duct from a low floor living part. Construction and maintenance of the light guide horizontal duct can be easily performed, and repair and cleaning can be easily performed.

  Furthermore, since the light guide horizontal duct is provided in the middle part of the building surrounded on four sides by the living part, from the light emission openings provided on the lower surface, the side surfaces on both sides, and the part or all of the upper surface. It is possible to appropriately emit light to the four living parts as necessary, and thereby efficiently emit natural light guided from the lighting port through the light guide lateral duct over a wide area. This makes it possible to effectively save energy.

  Moreover, according to the natural light utilization building of the present invention, for example, a skip floor is arranged in the lower floor living space below the high floor living section and the upper floor living space above the low floor living section to increase the height of 0.5 layers. This makes it possible to efficiently provide a storage space with an appropriate size.

  Furthermore, according to the natural light utilization building of the present invention, the daylight outlet is connected to the lateral duct for light guide at the lower end, and extends in the vertical direction, and the upper end opens to the roof portion or the roof portion of the building. It is formed at the upper end of the light guide vertical duct having a light reflecting material attached to the inner peripheral surface, and natural light is taken into the light guide vertical duct and the light guide horizontal duct by the lighting device attached to the upper end. Can be. By this, from the daylighting device attached to the daylight opening opening to the roof part or rooftop part of the building irradiated with sunlight for a long time, the light guide vertical duct with the light reflecting material attached to the inner peripheral surface Thus, it becomes possible to guide natural light to the lateral light guide duct provided in the middle part of the building in a stable and efficient state for a long time.

  Furthermore, according to the building using natural light of the present invention, the light guide horizontal duct and the light guide vertical duct are configured by installing a light guide duct pipe inside thereof, and the light guide horizontal duct and A ventilation path is maintained between the inner peripheral surface of the light guide vertical duct and the outer peripheral surface of the light guide duct tube, and ventilation of the living space is performed by the rising airflow through the ventilation path passing through the light guide vertical duct. Can be done. As a result, the exhaust exhausted from the living part without passing through the inside of the light guide duct pipe through which natural light is guided is raised through the ventilation duct passing through the light guide horizontal duct and the light guide vertical duct. For example, the airflow can be efficiently discharged to the outside from an exhaust port provided in the upper portion of the light guide vertical duct.

  Further, according to the building using natural light of the present invention, the inner peripheral surface of the surrounding living space where natural light is emitted from the lateral light guide duct can be finished with a photocatalytic material, thereby allowing sunlight. The function of removing harmful substances in the air, deodorizing function, antibacterial function, sterilizing function, etc. can be achieved by the action of ultraviolet rays contained in natural light from It is possible to effectively suppress the occurrence of dirt on the wall surface, floor surface, ceiling surface and the like constituting the inner peripheral surface of the space.

  According to the building using natural light of the present invention, the arrangement of the living space of the building can be devised, and a light guide duct that is simple, inexpensive, and easy to maintain can be efficiently provided in the middle part of the building, and is necessary. Accordingly, it is possible to emit light in four directions from the light guide duct, and it is possible to efficiently use natural light and save energy.

  The natural light utilization building 10 according to a preferred embodiment of the present invention shown in FIGS. 1 (a), 1 (b) and 2 (a) to 2 (c) is adjacent to a neighbor on the east side, the south side, and the west side, for example. It is a low-rise residential building that is built on a narrow site and has an eaves girder height of approximately 2.5 layers. The natural light using building 10 of the present embodiment enables natural light to be introduced into the building for a long time even when it is built on a site where it is difficult to take natural light from the sun indoors. It has a function that enables efficient use and energy saving.

And the natural light utilization building 10 of this embodiment was provided in the upper-floor living space 11, the high-floor living part 12 in which the 1st-floor 3rd living part 23 was provided below, and the 1st-floor 1st residential part 20 in the downward direction. The low floor living part 13 is arranged adjacent to each other with a height difference of 0.5 layers, and the end of the floor part 12a of the high floor living part 12 on the low floor living part 13 side and the floor part of the low floor living part 13 13a of the high-floor occupancy 12 side is arranged so as to overlap vertically, so that the left and right side surfaces are partitioned by the partition walls 35 and 35 in the space between the overlapping ends. The horizontal light guide duct 14 having a substantially square cross-sectional shape with a height of 5 layers is provided indoors with an area where four sides are surrounded by living parts 12, 13, 20, and 23. The light guide horizontal duct 14 is provided with a light reflecting material on the inner peripheral surface, and is removed from the lighting port 16. Mareta has become a natural light to guide laterally in the light-guiding transverse duct 14, and the lower surface 14a of the light guide for the transverse ducts 14, both sides of the side surfaces 14b, 14b, and the light radiation opening 15 on the upper surface 14c Natural light can be emitted to the surrounding lower-floor living parts 20, 23, the high-floor residential part 12 and the low-floor residential part 13 from the light emission opening 15 provided on a part or all of the surfaces. ing.

  Further, in the present embodiment, the lighting port 16 has an inner peripheral surface in which the lower end portion 17 a is connected to the light guide horizontal duct 14, extends in the vertical direction, and the upper end portion 17 b opens to the roof portion of the building 10. A light guide vertical duct 17 and a light guide horizontal duct 14 are formed by the daylighting device 18 attached to the upper end 17b. To capture natural light.

As shown in FIGS. 1A and 1B and FIGS. 2A to 2C , the south-east part of the building 10 is located in the lower floor (first floor) living space 19 of the natural light utilization building 10 of the present embodiment . The first-floor first living part 20 having a ceiling height of one layer is provided, and the north side of the first-floor first living part 20 is arranged in the northeast part of the building 10 and 1 A first-floor second living portion 21 having a ceiling height corresponding to the layer is provided. Further, on the west side of the first-floor first living part 20, a first-floor storage 22 having a ceiling height of 0.5 layers is provided in the south-west part of the building 10, and this first-floor storage is provided. Above the 22, a first floor third living section 23 having a ceiling height of one layer is provided. Further, on the north side of the first-floor storage 22 and the first-floor third living section 23, a first-floor fourth living section 24 having a height of 1.5 layers is provided in the northwest part of the building 10. Yes.

  In addition, in this embodiment, each living part and storage in FIG. 2 (a)-(c) are mainly divided on the basis of these ceiling heights and floor heights, and each living part and storage are Can be further divided by a partition wall or the like, and a living room, a front door, a staircase, a water circulation, etc. can be provided as appropriate.

  The upper floor (second floor) living space 11 that can be moved up and down from the lower floor (first floor) living space 19 through the first staircase is in the southeast part of the building 10 as shown in FIGS. The second-floor first living part 26 having a ceiling height of one layer is provided, and the north side of the second-floor first living part 26 has a ceiling height of 1.5 layers. A second floor living section 27 is provided, and on the north side of the second floor second living section 27, the floor is disposed in the northeast part of the building 10 and has a ceiling height of 0.5 layers. 28 is provided. Above the inter-storey storage 28, a second-floor third living portion 29 having a ceiling height of one layer is provided, and the second-floor third living portion 29 is provided via a second staircase 30. It is possible to move up and down from the second living part 27 on the second floor.

  Further, on the west side of the second-floor first living portion 26, the second-floor second-living portion 27, and the third-floor third-living portion 29, it is located below the sloped ceiling 31 (see FIG. 1A). A second-floor fourth living section 32 having a ceiling height of five layers is provided in the entire west portion of the building 10. Further, a second-floor storage 33 having a ceiling height of 0.5 layers is provided above the second-floor first living part 26 arranged in the southeastern part of the building 10. In addition, it is possible to move up and down from the fourth floor living section 32 on the second floor via the third staircase 34.

And in this embodiment, as shown to FIG.1 (a), (b) and FIG.2 (b), the 2nd-floor 4th residence part 32 is made into the high-floor residence part 12 in the upper-floor residence space 11, 2 The first floor living section 26 and the second floor second living section 27 are used as the low floor living section 13, and these are arranged adjacent to each other with a height difference of 0.5 layers in the east-west direction, and the floor of the high floor living section 12. The part 12a and the floor part 13a of the low-floor living part 13 are arranged so that the end parts adjacent to each other are stacked one above the other, so that the space between the two end parts arranged in the overlapping part is 0.5 layers. A horizontal light guide duct 14 having a substantially square cross-sectional shape is provided.

  As shown in FIG. 3, the light guide horizontal duct 14 is arranged so that the floor portion 12 a of the high-floor living portion 12 and the floor portion 13 a of the low-floor living portion 13 are arranged one above the other. The left and right sides are partitioned by the partition walls 35 and 35 by 12a and 13a, thereby having a substantially square cross-sectional shape corresponding to the height of 0.5 layers, for example, having a length of about 75 to 150 cm on one side. Therefore, it is formed as a passage-shaped hollow portion having a width that allows a person to enter easily.

  In addition, a light reflecting material 36 is attached to the inner peripheral surface of the light guide horizontal duct 14, whereby the natural light taken in from the lighting port 16 can be efficiently guided in the lateral direction while reflecting. It is like that. Here, as the light reflecting material 36, various kinds of finishing materials known as materials having high total light reflectance can be used. For example, a silver-deposited resin film, a high reflectance aluminum sheet, a glass mirror, a rolling finish. Mirror surface aluminum, chemical polishing mirror surface aluminum, stainless steel mirror surface polishing material and the like can be preferably used.

  More specifically, the light guide horizontal duct 14, for example, covers the inner peripheral surface thereof and lays a heat insulating material 37 made of hard glass wool or the like, and the light guide horizontal duct 14 has a substantially square hollow shape. It can be easily formed by attaching the light reflecting material 36 with the non-combustible board 39 interposed, for example, after attaching the height adjusting base 38 with a space from the top surface so as to have a cross-sectional shape. A light reflecting material 36 is also attached to the inner surface of the open / close door 41 provided at the entrance / exit 40 to the light guide horizontal duct 14 which is an inspection port.

In this embodiment, the light emission port 15 is formed in the lower surface 14a, the side surfaces 14b and 14b on both sides, and the upper surface 14c of the lateral light guide duct 14. The light emission port 15 is provided so as to penetrate through the upper and lower floor portions 12 a and 13 a and the left and right partition walls 35 and 35 that partition the periphery of the light guide horizontal duct 14. Along the opening surface on the front side and the back side of the light emission port 15, the pair glass 42 is attached so as to have a double structure, and covers the inner wall surface of the light emission port 15. A light diffusion sheet 43 is attached. As shown in FIG. 4, when the light emission port 15 is formed in the upper surface 14 c of the light guide lateral duct 14, the glass disposed along the upper surface 14 c is a tempered glass 44. It becomes possible to stably support the load from above.

  Further, in the present embodiment, a daylighting port 16 is formed in the upper end portion 17b, and the light guide vertical duct 17 (FIG. 1 (a) for sending natural light from the sun taken in from the daylighting port 16 to the light guide horizontal duct 14 is provided. ), (B)) is a cylindrical portion having a square hollow cross-sectional shape of about 90 cm in length and width, for example, and covers the inner peripheral surface thereof, and a light reflecting material similar to the above is attached. As a result, the taken-in natural light can be efficiently guided to the light guide lateral duct 14. When the light guide vertical duct 17 extends in the vertical direction (vertical direction) through the roof in the middle part away from the outer wall of the building 10, and the lower end 17a is connected to the light guide horizontal duct 14, The upper end portion 17 b opens to the roof portion of the building 10 to form the daylighting port 16. A daylighting device 18 is attached to the daylighting port 16 of the upper end portion 17b. With the daylighting device 18, natural light from the sun can be efficiently taken into the light guide vertical duct 17 over a long period of time. ing.

  Here, as the daylighting device 18, a known acrylic or glass having a mechanism that is attached to the wall, roof, rooftop, or the like of the building and that can take in natural light from the sun through the duct into the building. Various kinds of daylighting devices can be used. For example, the daylighting apparatuses described in JP 2000-162541 A, JP 2000-243111 A, JP 2006-54071 A, JP 2004-39318 A, and the like can be used with appropriate improvements.

  Further, in the present embodiment, the light guide horizontal duct 14 is provided at the lower end of the light guide vertical duct 17 at an intermediate portion away from the outer wall of the building 10, as shown in FIGS. 1 (b) and 2 (a). It extends from the connecting portion with the portion 17a to the south side so as to reach the outer wall 45 on the south side. In addition, by extending a part of the light guide horizontal duct 14 adjacent to the outer wall 45 on the south side downward by a height of 0.5 layer, the vertical discharge projecting downward from the floor portion 13a of the low floor living portion 13 is achieved. An optical part 46 is formed. Since the vertical light emitting portion 46 is formed, natural light from the sun is efficiently emitted from the vertical light emitting portion 46 that is one step lower than the light guide lateral duct 14 through the light emission port 15. It becomes possible.

  Furthermore, in the present embodiment, as shown in FIGS. 5A and 5B, a storage portion 47 that can be used from the lower-floor living space 19 is provided immediately below the vertical light emitting portion 46. The storage section 47 is vertically moved to an upper storage section 47a that can be taken in and out of the first floor third living section 23 above the first floor storage 22, and an upper storage section 47b that can be put in and out of the first floor first living section 20. It is divided into Since the storage portion 47 is provided directly below the vertical light emitting portion 46, the space below the light guide horizontal duct 14 can be effectively used as a convenient storage space.

  Moreover, in this embodiment, the 1st-floor 1st residence part 20, the 1st-floor 3rd residence part 23, the 1st-floor 4th residence part 24 which are surrounding living spaces where natural light is emitted from the horizontal light guide duct 14, The inner peripheral surfaces of the second floor first living section 26, the second floor second living section 27, and the second floor fourth living section 32 are finished with a photocatalytic material. Here, as the photocatalyst material, various known photocatalyst materials can be used. For example, the photocatalyst material contains humidity-controllable inorganic powder supporting titanium oxide having photocatalytic activity as described in JP-A-2002-235382. A water-based emulsion paint or the like can be used. Such photocatalytic materials absorb the bad smell caused by acetaldehyde, ammonia, hydrogen sulfide, etc., and the air purification function that removes harmful substances such as NOx, SOX, and formaldehyde in the air under the effect of natural light from the sun, It is known as a material that exhibits a deodorizing function for decomposing or a water purifying function for decomposing and removing volatile aerobic compounds such as tetrachloroethylene and trichloroethylene which are contaminants melted in water. In addition, it is also known as a material that exhibits antibacterial and antibacterial effects to prevent bacteria and viruses from forming a clean environment, and antifouling functions to prevent dirt on walls and floors.

  And according to the natural light utilization building 10 of this embodiment which has the above-mentioned structure, the arrangement of the living space of a building is devised, and the light guide duct 14 which is simple, inexpensive and easy to maintain is provided in the middle part of the building. In addition to being able to be provided efficiently, it is possible to emit light in four directions from the light guide duct 14 as necessary, and it is possible to efficiently use natural light and save energy.

That is, according to the natural light utilization building 10 of the present invention, the light guide horizontal duct 14 is adjacent to the upper floor living space 11 between the high floor living portion 12 and the low floor living portion 13 with a height difference of 0.5 layers. And arranging the end portions on the adjacent sides of the floor portion 12a of the high-floor occupancy section 12 and the floor portion 13a of the low-floor occupancy portion 13 so as to overlap each other. Is formed to have a height of 0.5 layers in the space of, for example, 0.5 layers in a building in which an interstory storage for 0.5 layers or an atrium is provided in a part of the living space Using the floors 12a and 13a between the adjacent living parts 12 and 13 of the part having the difference in height, the middle of the building 10 surrounded by the living parts 20, 23, 24, 26, 27 and 32 on the four sides It is possible to easily and efficiently provide the light guide lateral duct 14 in the portion.

Moreover, the horizontal light guide duct 14 is formed by vertically arranging the adjacent ends of the floor portion 12a of the high-floor occupancy section 12 and the floor portion 13a of the low-floor occupancy section 0.5. It is formed to have a substantially square cross-sectional shape in the space of the height of the layer, and has a size that allows a person to easily enter the horizontal light guide duct 14 from, for example, the low-floor living part 12. Therefore, the construction and maintenance of the light guide horizontal duct 14 can be easily performed, and repair and cleaning can be easily performed.

  Furthermore, since the light guide horizontal duct 14 is provided in the middle part of the building 10 surrounded by the living parts 20, 23, 24, 26, 27, 32 on four sides, the lower surface 14a, the side surfaces 14b, 14b on both sides, and It becomes possible to appropriately emit light to the four living parts 20, 23, 24, 26, 27, and 32 as needed from the light emission openings 14 provided on part or all of the upper surface 14c. As a result, it is possible to efficiently emit the natural light guided from the lighting port 15 through the light guide lateral duct 14 over a wide area, thereby effectively saving energy. Become.

  Moreover, according to the natural light utilization building 10 of this embodiment, for example, a skip floor is arranged in the lower-floor living space 19 below the high-floor living portion 12 and the upper-floor living space 11 above the low-floor living portion 13 to 0 Since the first-floor storage 22 and the second-floor storage 33 having a height of five layers are provided, it is possible to efficiently secure a storage space with an appropriate size.

  Further, according to the natural light utilization building 10 of the present embodiment, the lighting port 16 is connected to the horizontal light guide duct 14 at the lower end portion 17a and extends in the vertical direction, and the upper end portion 17b is the roof portion of the building 10. The light guide vertical duct 17 and the light guide are formed by the daylighting device 18 attached to the upper end 17b. Since the natural light is taken into the horizontal duct for light 14, the lighting device 18 attached to the lighting port 16 that opens to the roof portion of the building 10 irradiated with sunlight for a long time is used as the inner peripheral surface. Natural light is guided in a stable and stable manner over a long period of time to a light guide horizontal duct 17 provided in an intermediate portion of the building 10 through a light guide vertical duct 17 to which a light reflecting material is attached. Is possible.

Furthermore, according to the natural light available building 10 of the present invention, the inner peripheral surface around the living space natural light from the light guide for the horizontal duct 14 is light radiation, since up finish by the photocatalyst material has been applied, The function of removing harmful substances in the air, deodorizing function, antibacterial / sterilizing function, etc. by the action of ultraviolet rays contained in natural light from the sun makes it possible to purify the environment of the surrounding living space and It is possible to effectively suppress the occurrence of dirt on the wall surface, floor surface, ceiling surface and the like constituting the inner peripheral surface of the living space.

  Moreover, according to the natural light utilization building 10 of the present invention, since natural light from the sun can be taken up to the deep part of the building 10, for example, in the first-floor fourth living portion 24 having a height of 1.5 layers, Tropical trees such as Benjamin, Gekkitsu, and banyan tree, and other planting can be planted to take in greenery indoors, and Takagi can be enjoyed as indoor green.

  FIG. 6 shows a natural light utilization building 50 according to another preferred embodiment of the present invention. Also in the natural light utilization building 50 of FIG. 6, in the middle part of the building 50, 0.5 layers are provided in the space of the portion where the floor portion 12 a ′ of the high floor living portion and the floor portion 13 a ′ of the low floor living portion are overlapped. A horizontal light guide duct 14 ′ having a substantially square cross-sectional shape with a height of minutes is provided. The light inlet 16 ′ has a lower end portion 17 a ′ connected to the light guide horizontal duct 14 ′ and extends in the vertical direction so that the upper end portion 17 b ′ opens in the roof portion of the building 50. It is formed at the upper end 17b ′ of 17 ′, and natural light is taken into the vertical light guide duct 17 ′ and the horizontal light guide duct 14 ′ by the daylighting device 18 ′ attached to the upper end 17b ′. ing.

  Further, according to the natural light utilization building 50 of FIG. 6, the light guide horizontal duct 14 ′ and the light guide vertical duct 17 ′ have a light guide for which a reflecting material is attached to cover the inner peripheral surface. A duct pipe 51 is provided, and a ventilation path 52 is provided between the inner peripheral surface of the light guide horizontal duct 14 ′ and the light guide vertical duct 17 ′ and the outer peripheral surface of the light guide duct pipe 51. Is held, and the living space can be ventilated by the rising air current through the ventilation path 52 that passes through the vertical light guide duct 17 '.

  And according to the natural light utilization building 50 of FIG. 6, in addition to the effect substantially the same as the natural light utilization building 10 of the said embodiment, it passes through the inside of the light guide duct 51 to which natural light is guided. However, the exhaust discharged from the living part is, for example, on the upper part of the light guide vertical duct 17 ′ by the rising air current through the ventilation path 52 passing through the light guide horizontal duct 14 ′ and the light guide vertical duct 17 ′. It is possible to efficiently discharge to the outdoors from the provided exhaust port 53.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, it is not always necessary to provide a light guide vertical duct, and it is not always necessary to form a daylighting port at the upper end of the light guide vertical duct. It is also possible to provide a daylight outlet on the outer wall surface of the building, a balcony or the like so that natural light is taken into the lateral light guide duct. The horizontal light guide duct does not necessarily have a substantially square cross-sectional shape, and may have a rectangular cross-sectional shape. Furthermore, the building to which the present invention is applied does not necessarily have to be a low-rise residential building having an eaves girder height of approximately 2.5 layers as a whole, other than a three-story building or a residential building It may be a building. It may be a building that is partially semi-underground.

The structure of the natural light utilization building which concerns on preferable one Embodiment of this invention is demonstrated, (a) is schematic sectional drawing along AA of Fig.2 (a), (b) is B of Fig.2 (a). It is a schematic sectional drawing along -B. The structure of the natural light utilization building which concerns on preferable one Embodiment of this invention is demonstrated, (a) is the schematic sectional drawing along CC of FIG. 1 (a), (b) is D of FIG. 1 (a). -D is a schematic cross-sectional view taken along -D, and (c) is a schematic cross-sectional view taken along EE in FIG. 1 (a). It is an expanded sectional view explaining the structure of the horizontal duct for light guides. It is explanatory drawing of the state which attached the tempered glass to the light emission port. (A), (b) is an expanded sectional view explaining the structure of the storage part provided in the perpendicular | vertical light emission part and the part directly under this. It is a schematic sectional drawing explaining the structure of the natural light utilization building which concerns on other preferable embodiment of this invention.

Explanation of symbols

10, 50 Natural light utilization building 11 Upper floor living space 12, 12 'High floor living section 12a, 12a' High floor living section floor 13, 13 'Low floor living section 13a, 13a' Low floor living section floor 14, 14 'Light guide horizontal duct 14a Light guide horizontal duct lower surface 14b Light guide horizontal duct side surface 14c Light guide horizontal duct upper surface 15, 15' Light outlet 16, 16 'Light outlet 17, 17' Light guide Vertical duct 18 Daylighting device 19 Lower floor living space 20, 21, 23, 24, 26, 27, 29, 32 Living part 22, 28, 33 Storage 36 Light reflector 40 Entrance 41 Opening door 46 Vertical light emitting part 47 Storage 48 Tropical tree 51 Duct pipe 52 for light guide Ventilation path 53 Exhaust port

Claims (7)

In the upper floor living space, a high floor living section with a lower floor living section below and a lower floor living section with a lower floor living section below are arranged adjacent to each other with a height difference of 0.5 layers. And the end of the floor part of the high-floor living part and the end part of the floor part of the low-floor living part and the end part of the high-floor living part side of the floor part of the low-floor living part are vertically stacked, There are 4 horizontal light guide ducts having a square or rectangular cross-sectional shape with a height of 0.5 layers in which the left and right side surfaces are partitioned by a partition wall in the space between the end portions arranged vertically. Is equipped with an area indoors surrounded by the living part,
The light guide horizontal duct has a light reflecting material attached to the inner peripheral surface thereof, and guides the natural light taken from the lighting port in the horizontal direction by the light guide horizontal duct. Light exits are provided on the lower surface, both side surfaces, and the upper surface of the horizontal duct, and natural light is emitted from the light exit provided on a part or all of the surfaces of the lower floor residential part and the high floor residential part. Or a building using natural light that can emit light to the low floor living area.   The storage of the height for 0.5 layers is provided in the lower floor living space below the high floor living section and / or the upper floor living space above the low floor living section. Building using natural light.   The light outlet has a lower end connected to the light guide horizontal duct, and a light reflecting material is attached to an inner peripheral surface extending in a vertical direction and having an upper end opened to a roof portion or a roof portion of the building. A natural light is taken into the vertical light guide duct and the horizontal light guide duct by a daylighting device formed at the upper end of the vertical light guide duct and attached to the upper end. The building using natural light as described in 2.   The light guide horizontal duct and the light guide vertical duct are configured by installing a light guide duct tube therein, and the inner periphery of the light guide horizontal duct and the light guide vertical duct. A ventilation path is maintained between the surface and the outer peripheral surface of the light guide duct tube, so that the living space can be ventilated by the rising airflow through the ventilation path passing through the light guide vertical duct. The building using natural light according to claim 3.   A portion of the horizontal light guide duct is expanded downward by a height of 0.5 layers, thereby forming a vertical light emitting portion projecting downward from the floor portion of the low floor living portion. The building using natural light according to any one of claims 1 to 4.   The building using natural light according to claim 5, wherein a storage portion that can be used from a lower-floor living space is provided in a portion directly below the vertical light emitting portion.   The building using natural light according to any one of claims 1 to 6, wherein an inner peripheral surface of a surrounding living space where natural light is emitted from the lateral light guide duct is finished with a photocatalytic material.

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