JP6086679B2 - building - Google Patents

Description

  The present invention relates to a building provided with a ventilation tower.

  Buildings in densely populated areas such as urban areas are often not sufficiently separated from adjacent buildings, and it is difficult to ventilate and daylight the buildings with windows provided on the side walls.

  Therefore, Patent Document 1 proposes a building including a ventilation skylight protruding upward from a flat roof. Such ventilation skylights can facilitate ventilation in the building.

JP 2005-146838 A

  However, in such a configuration, in winter, the ventilation skylight is closed, and even if it is opened, the incident angle of sunlight is low, so that sunlight does not reach the living room under the skylight. For this reason, it is difficult to perform sufficient lighting, and the heating effect by sunlight cannot be expected.

  This invention is made | formed in view of this point, and it aims at providing the building provided with the ventilation tower which can take in sunlight into a living room in winter.

To achieve the above object, the present invention is directed to a ventilation tower that protrudes upward from a flat roof and includes a daylighting part on a side wall surface, and light that reflects sunlight collected from the daylighting part to a living room below the ventilation tower. a reflection portion, were closed, the light reflection portion includes a plurality of reflection plates having a predetermined inclination angle, the plurality of reflectors are arranged in a vertical direction along the inner surface of the lighting unit, the lower It is a ventilation tower whose inclination angle becomes larger as the reflector in

  ADVANTAGE OF THE INVENTION According to this invention, sunlight can be reflected in the living room under a ventilation tower by reflecting with a light reflection part, and can brighten or warm a living room in winter.

  The plurality of reflectors may be arranged side by side in a horizontal direction toward the daylighting unit, and the inclination angle may be smaller as the reflector is farther from the daylighting unit. In such a case, by varying the reflection angle of sunlight, sunlight diffuses and the room can be brightened or warmed over a wide range.

  According to the present invention, since the sunlight can be effectively taken into the living room in the winter using the ventilation tower, the light environment and the thermal environment of the building can be improved using natural energy.

It is a schematic diagram of the building which has a ventilation tower. It is explanatory drawing which shows the outline of a structure of a ventilation tower. It is explanatory drawing which shows the cross section of a ventilation tower. It is explanatory drawing which shows the example which arranged the reflecting plate in the horizontal direction. It is explanatory drawing which shows the example of the reflecting plate bent. It is explanatory drawing which shows the example of light reflection of the lower surface of the bent reflecting plate.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing a building 2 having a ventilation tower 1 according to the present embodiment. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  The building 2 has a ventilation tower 1 having a substantially rectangular parallelepiped outer shape and protruding upward from the flat roof 3. The ventilation tower 1 has a window 10 as a daylighting section for collecting sunlight, and the sunlight collected from the window 10 is located inside the ventilation tower 1 and communicates with the ventilation tower 1 below the ventilation tower 1. It has the light reflection part 11 reflected in the living room 4 side. A vent 6 is formed on the floor of the living room 4, and an openable / closable window 5 is provided on the wall of the living room 4.

  The window 10 is provided, for example, on the side wall surface facing south of the four side wall surfaces of the ventilation tower 1. The window 10 is fitted with a transparent or translucent plate material that transmits light, such as glass. The window 10 includes an opening / closing mechanism that rotates outward with the upper side as a support shaft, for example. Note that the window 10 may be opened / closed using a side as a support shaft, a draw type, a raise / lower type, or the like.

  As shown in FIG. 2, the light reflecting portion 11 includes a plurality of reflecting plates 20. Each reflecting plate 20 has a strip shape, and a group of the reflecting plates 20 is arranged in the vertical direction so as to face the window 10 with its longitudinal direction horizontal. Each reflector 20 is inclined such that the window 10 side is high and the center side of the ventilation tower 1 is low. The plurality of reflectors 20 are installed such that the lower one has a larger inclination angle. The inclination angle of the uppermost reflection plate 20 is 45 °, for example, and the lower reflection plate 20 has a larger inclination angle, and the inclination angle of the lowermost reflection plate 20 is 60 °, for example. Thereby, the sunlight reflected by the upper reflecting plate 20 is irradiated to the living room 4 from the side far from the window 10, and is irradiated to a region further away from the window 11 in the region of the living room 4. The reflected sunlight is applied to an area closer to the window 11 in the area of the living room 4.

  As shown in FIG. 3, for example, the reflecting plates 20 are supported at both ends by support columns 30 fixed to the inner wall surface of the ventilation tower 1.

  In the ventilation tower 1 configured as described above, for example, as shown in FIG. 2, in the winter season, sunlight with a low incident angle with an incident angle of 45 ° or less is irradiated to the ventilation tower 1. Sunlight is taken into the ventilation tower 1 through the window 10 of the ventilation tower 1, reflected by the lower surface of each reflector 20, and irradiated into the living room 4 below the ventilation tower 1. At this time, since the lower reflection plate 20 has a larger inclination angle, the reflected sunlight is not easily blocked by the lower reflection plate 20, and is irradiated over a wide area of the living room 4 while diffusing.

  According to the present embodiment, sunlight having a low incident angle is taken from the ventilation tower 1 and can be irradiated to the room 4 below the ventilation tower 1, so that the room 4 can be brightened or warmed by sunlight in winter. it can. In addition, the plurality of reflectors 20 that are configured have different inclination angles, and the lower reflection plate 20 has a larger inclination angle, so that sunlight can be irradiated over a wide area of the living room 4.

  In the above embodiment, as shown in FIG. 5, for example, the reflecting plate 20 reflects sunlight having a high incident angle higher than a predetermined incident angle into the ventilation tower 1 and has a low incident angle lower than the predetermined incident angle. It may be configured to reflect sunlight to the living room 4. More specifically, the plurality of reflecting plates 20 are arranged in the vertical direction on the inner surface of the window 10, and each reflecting plate 20 has a bent shape. For example, each reflecting plate 20 is connected to a first reflecting portion 20a that is high on the window 10 side and low on the opposite side of the window 10, and an end portion on the opposite side of the window 10 of the first reflecting portion 20a. The second reflection portion 20b is high on the opposite side, and is formed in a shape with a substantially reverse cross section. The inclination angle of the first reflection portion 20a is set to, for example, about 45 ° to 60 °, and the inclination angle of the second reflection portion 20b is set to, for example, about 15 ° to 30 °.

  As shown in FIG. 5, the plurality of reflectors 20 reflect sunlight having a high incident angle higher than the inclination angle of the first reflector 20a into the ventilation tower 1 on the upper surface, and the first reflector as shown in FIG. The sunlight having a low incident angle lower than the inclination angle of the reflecting portion 20a is reflected on the lower surface to the living room 4. In this example, sunlight with a high incident angle is reflected on the upper surface of the first reflecting portion 20a, further reflected on the upper surface of the second reflecting portion 20b, and irradiated in the ceiling direction of the ventilation tower 1. Moreover, sunlight with a low incident angle is reflected by the lower surface of the first reflecting portion 20a of the upper reflecting plate 20 in the reflecting plates 20 adjacent to each other vertically, and then the second reflection of the lower reflecting plate 20. The light is reflected on the upper surface of the part 20b, further reflected on the lower surface of the second reflecting part 20b of the upper reflecting plate 20, and is irradiated in the direction of the living room 4.

  In such a case, since the high incident angle sunlight in the summer is not taken into the living room 4, the temperature of the living room 4 can be prevented from rising in the summer, and the low incident angle sunlight in the winter can be taken into the living room 4. it can. In this case, the inclination angle of the reflection plate 20 may be constant, or the inclination angle may be larger as the reflection plate 20 is lower. When the lower reflection plate 20 has a larger inclination angle, the inclination angle of the first reflection portion 20a becomes larger and the inclination angle of the second reflection portion 20b becomes smaller.

  Moreover, the some reflecting plate 20 may be arrange | positioned along with the horizontal direction which goes to the window 10, as shown in FIG. The plurality of reflectors 20 are, for example, the same height or lower than the lower end of the window 10 and higher than the ceiling surface of the living room 4 at the same height, and the longitudinal direction is parallel to the window 11. Is installed. Further, the plurality of reflecting plates 20 are installed such that the inclination angle becomes smaller as the reflecting plate 20 is farther from the window 10. The inclination angle of the reflection plate 20 closest to the window 10 is 60 °, and the inclination angle becomes smaller as it is closer to the window 10, and the inclination angle of the reflection plate 20 farthest from the window 10 is 45 °, for example. As a result, the sunlight reflected by the reflecting plate 20 away from the window 10 is irradiated to a region away from the window 10 in the region of the living room 4, and the sunlight reflected by the reflecting plate 20 near the window 10 is changed into the living room. Of the four regions, the region close to the window 10 is irradiated.

  Also in this example, since sunlight with a low incident angle can be taken from the ventilation tower 1 and irradiated to the room 4 below the ventilation tower 1, the room 4 can be brightened or warmed by sunlight in winter.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the idea described in the claims, and these naturally belong to the technical scope of the present invention. It is understood.

  For example, in the above embodiment, the window 10 as the daylighting unit also has a function of ventilation (exhaust) in the ventilation tower. However, the function of ventilation may be provided to other opening / closing windows, ventilation galleries, and the like. The daylighting unit may be provided on a plurality of side wall surfaces of the ventilation tower 1. Further, the shape, number, inclination angle, installation position, and the like of the reflecting plate 20 are not limited to those of the present embodiment, but may be other. The living room 4 may be a room such as a living room, a corridor, a staircase, or the like.

  The present invention is useful when taking winter sunlight into a living room in a ventilation tower.

DESCRIPTION OF SYMBOLS 1 Ventilation tower 2 Building 3 Flat roof 4 Living room 10 Window 11 Reflecting part 20 Reflecting plate

Claims (1)

A ventilation tower that protrudes upward from the flat roof and has a daylighting part on the side wall,
The lighting sunlight from the lighting unit, and a light reflecting portion for reflecting the room below the ventilation column, and possess,
The light reflecting portion is composed of a plurality of reflecting plates having a predetermined inclination angle,
The plurality of reflectors are arranged side by side in the vertical direction along the inner surface of the daylighting unit, and the angle of inclination increases toward the reflector below .

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