JP2017002491A - building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building capable of improving the degree of freedom of design for an upper floor while improving efficiency of light collection from a skylight window.SOLUTION: The present invention relates to a building T comprising a plurality of layers F1, F2 and F3, the building comprising, on a lower-floor outer peripheral wall 2 and a third floor F3 right above a second floor F2, a retraction wall 4 provided retracting inward from the lower-floor outer peripheral wall 2, a skylight window 5 provided between a lower part 4k of the retraction wall 4 and an upper part 2p of the lower-floor outer peripheral wall, an interior wall 6 connecting with the retraction wall 4 and provided below the skylight window 5, a stairwell part 22 provided below the skylight window 5 of the second floor F2, and a planar reflection part 7 formed on a surface of the interior wall 6 on the side of the skylight window 5.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a building having a plurality of hierarchies.

  A building with a skylight on the roof is known. For example, Patent Document 1 discloses a building in which a skylight that can be opened and closed is provided on a flat roof of the building.

Japanese Patent Laid-Open No. 2007-138893

  When light is taken into the lower room from the skylight, the light can be taken more efficiently into the whole room by arranging the skylight at the upper center of the room. However, if it is necessary to provide an upper floor above the living room where the skylight is provided, the skylight will interfere with the upper floor by design. There is a need to add restrictions. Therefore, in a building having a conventional skylight, it has been difficult to achieve both improvement in daylighting efficiency from the skylight and improvement in freedom in design of the upper floor.

  An object of the present invention is to provide a building capable of improving the degree of freedom in design of the upper floor while improving the lighting efficiency from the skylight. To do.

  The present invention is a building having a plurality of floors, and includes a lower-floor outer wall and a retreat wall provided on the upper floor, which is directly above the lower floor, retreating inward from the lower-floor outer wall. And a skylight provided between the lower part of the receding wall and the upper part of the outer peripheral wall of the lower floor, an interior wall that is continuous with the receding wall and provided below the skylight, and below the skylight on the lower floor It is characterized by comprising a lower floor space provided, and a planar reflecting portion formed on the skylight side surface of the interior wall.

  In this building, a receding wall is provided at a position retracted inward from the outer peripheral wall of the lower floor, and the skylight is provided between the lower part of the receding wall and the upper part of the outer peripheral wall of the lower floor. In other words, the skylight is provided between the receding wall and the outer peripheral wall of the lower floor so as to avoid the upper floor area, for example, compared to the case where the skylight is provided in the center of the upper floor. The degree of freedom in design is improved. On the other hand, the light incident from the skylight is reflected by the reflection part of the interior wall provided below the receding wall, and further reflected by the inner surface side of the outer peripheral wall of the lower floor, depending on the incident angle of the light. It becomes easy to spread over a wide area in the living room. In particular, the light entering through a skylight from a high altitude is likely to illuminate a narrow area below the skylight if there is no interior wall or reflection part. It becomes easy to spread light over a wide range, which is advantageous for improving the daylighting efficiency. As mentioned above, according to this building, the freedom degree in the design of an upper floor can be improved, improving the lighting efficiency from a skylight.

  Further, it is preferable that the skylight is inclined from the receding wall to the outer peripheral wall of the lower floor, and the outer peripheral wall side of the lower floor of the skylight is lower than the receding wall side of the skylight. The skylight is inclined so that the outer wall side of the lower floor, which is the opposite side of the upper floor, is lower, so the sun's altitude is low, that is, even with light with a low incident angle, it was placed horizontally Compared to the skylight, the light can be taken in more effectively, and the light taken in can be reflected by the reflecting portion and easily reach directly under the skylight.

  Further, it is preferable that the outer peripheral wall of the lower floor has a daylighting area where the light reflected by the reflection part can reach, and a windowless part having no window is formed in all the daylighting areas. The light reflected by the reflecting portion further reaches the lower floor space by being reflected by the daylighting area. Here, if there is a window in the daylighting area, there is a possibility that reflection in the daylighting area becomes unstable, or that sufficient reflected light to illuminate the lower floor space cannot be obtained. However, in the building, since the windowless portion having no window is formed in all the daylighting areas, the reflection in the daylighting area is stable, which is advantageous for improving the daylighting efficiency.

  Furthermore, it is preferable that the lower floor space extends in a direction away from the daylighting area across the interior wall. The light reflected by the lighting area spreads away from the lighting area across the interior wall. Therefore, if the lower floor space is expanded in this direction, it becomes easier to illuminate a wide range of the lower floor space by effectively using the light reflected in the daylighting area as compared with the case of expanding in the other direction.

  According to the building according to the present invention, it is possible to improve the degree of freedom in design of the upper floor while improving the lighting efficiency from the skylight.

1 is a perspective view of a building according to a first embodiment of the present invention. It is a top view of the building concerning this embodiment. It is sectional drawing along the III-III line of FIG. It is sectional drawing along the IV-IV line of FIG. It is sectional drawing which expands and shows a skylight. It is a side view which illustrates the mode which adopted the building concerning this embodiment as a city type house.

  Embodiments according to the present invention will be specifically described below with reference to the drawings. For convenience, the same reference numerals are given to substantially the same elements, and the description thereof may be omitted.

  As shown in FIGS. 1, 2, 3, and 4, the building T is a three-story (multiple-story) industrialized house (also referred to as a standardized house). A room 21 and an atrium 22 are provided on the 11th and 2nd floors F2, and a room (hereinafter referred to as an “upper room”) 31 and a veranda 32 are provided on the 3rd floor F3. ing. The lower-floor room 11 is provided with a living room 12 and a dining kitchen (not shown), and there is no slab between the living room 12 and the atrium 22 and communicates with each other. In addition, in this embodiment, the lower floor room 11 connected to the atrium part 22 and the atrium part 22 is equivalent to a lower floor space.

  The first floor F1 and the second floor F2 are surrounded by an outer peripheral wall 1 on the first floor F1 side and an outer peripheral wall 2 on the second floor F2 side formed in a substantially rectangular shape in plan view, respectively. The outer peripheral wall 2 on the F2 side corresponds to the outer peripheral wall of the lower floor, and is hereinafter referred to as the “lower floor outer peripheral wall”.

  The upper floor room 31 of the third floor F3 is surrounded by an outer peripheral wall (hereinafter referred to as “upper floor outer peripheral wall”) 3. The veranda 32 is provided directly above the second floor F2 and outside the upper floor outer peripheral wall 3, and a waist wall 4b, side walls, and the like are provided around the periphery of the veranda 32 to prevent falling. The upper floor outer peripheral wall 3 does not stand up continuously with respect to the entire circumference of the lower floor outer peripheral wall 2, but the area of the veranda 32 and the partial area continuous to the waist wall 4 b are separated from the lower floor outer peripheral wall 2. Standing up inward. A partial region continuing to the waist wall 4b is an outer peripheral wall receding portion 4a. In the present embodiment, the waist wall 4b and the outer peripheral wall receding portion 4a of the veranda 32 are retracted inward from the lower floor outer peripheral wall 2 to form the receding wall 4. The receding wall 4 is provided above the blow-through portion 22.

  The building T includes a skylight 5 provided between the lower part 4k of the receding wall 4 and the upper part 2p of the lower floor outer peripheral wall 2, and an interior wall 6 that is continuous with the receding wall 4 and provided below the skylight 5. And. The interior wall 6 is connected to the ceiling portions 1a of the first floor F1 and the second floor F2. In addition, the interior wall 6 according to the present embodiment forms a base surface on the surface of the region below the skylight 5 in the wall panel constituting the receding wall 4 so as to be continuous with the ceiling portion 1a of the blow-off portion 22, Although the interior finish is the same as that of the ceiling portion 1a and the wall of the atrium portion 22 (for example, the same wallpaper is pasted), the interior wall 6 protrudes downward from the ceiling surface of the atrium portion 22. It may be (hanging wall shape).

  The interior wall 6 is disposed to face the indoor surface of the lower floor outer peripheral wall 2, and a planar reflection portion 7 is provided on the surface of the interior wall 6 on the skylight 5 side. The reflection part 7 should just be a member with a higher reflectance than the interior wall 6 in which wallpaper etc. were stuck and the finishing process was given, For example, the plate-shaped member which has mirror surfaces, such as a stainless steel mirror, is preferable.

  As shown in FIG. 5, the skylight 5 is a glass window (also referred to as a “sash window”) in which a plate glass 5 b is fitted in a window frame 5 a fixed to the lower outer peripheral wall 2 and the upper outer peripheral wall 3. . The skylight 5 is inclined from the receding wall 4 to the lower floor outer peripheral wall 2, and the lower floor outer peripheral wall 2 side of the skylight 5 is lower than the receding wall 4 side. Note that the skylight 5 may be in any other form as long as it is capable of daylighting, and may be openable and closable.

  The light SL incident from the skylight 5 is reflected by the reflecting portion 7 of the interior wall 6, further reflected by the inner surface side of the lower floor outer peripheral wall 2 to illuminate the blow-off portion 22, and further through the blow-out portion 22 to the lower floor room 11. Illuminate the inside. The area (hereinafter referred to as “lighting area”) Ar in which the reflected light La reflected by the reflecting portion 7 can reach within the inner surface of the lower floor outer peripheral wall 2 is the shape, size and arrangement of the skylight 5 and the reflecting portion 7. Further, it can be specified at the design stage of the building T by the distance between the reflecting portion 7 and the lower outer peripheral wall 2 or the like. The daylighting area Ar is not provided with a window such as a sash, and is provided with a windowless portion 2a that has been subjected to a finishing process with white or light-colored wallpaper close to white. That is, the windowless part 2a which does not have a window is provided in all the lighting areas Ar.

  As described above, the upper floor outer peripheral wall 3 of the building T according to the present embodiment is provided with the receding wall 4 that recedes inward from the lower floor outer peripheral wall 2, and the skylight 5 includes the lower part 4 k of the receding wall 4 and the lower floor. It is provided between the upper part 2p of the outer peripheral wall 2. That is, the skylight 5 is provided between the receding wall 4 and the lower floor outer peripheral wall 2 so as to avoid an area that becomes the third floor (upper floor) F3. As a result, for example, the degree of freedom in designing the third floor F3 is improved as compared with the case where the skylight 5 is provided in the center of the third floor F3. On the other hand, the light SL incident from the skylight 5 is reflected by the reflecting portion 7 of the interior wall 6 provided below the receding wall 4, depending on the incident angle of the light SL, and is further reflected on the lower floor outer peripheral wall 2. Reflected on the inner surface side, it becomes easy to reach the wide area in the atrium 22 and the lower floor room 11. As a result, according to the building T, it is possible to improve the degree of freedom in designing the third floor F3 while improving the lighting efficiency from the skylight 5.

  In particular, the building T is advantageous in the case of a city-type house where houses are densely packed. In the case of an urban house, the distance between the building T and the adjacent buildings 100 and 101 is very narrow (see FIG. 6). That is, since the light SL from a position with a low altitude is easily blocked by the adjacent building T, the light SL entering through the skylight 5 substantially increases the light SL from a position with a high altitude. In this case, if the interior wall 6 and the reflection portion 7 are not provided, the light is likely to illuminate a narrow range below the skylight 5. In the building T according to this embodiment, the light is reflected by the reflection portion 7 and further in the daylighting area Ar. By reflecting, it becomes easy to spread the reflected light Lb (see FIG. 5) over a wide range in the lower-floor room 11, which is advantageous for improving the lighting efficiency.

  Furthermore, as FIG. 5 shows, the skylight 5 which concerns on this embodiment inclines so that the lower floor outer peripheral wall 2 side which is the opposite side to the 3rd floor F3 may become low. As a result, even the light SL with a low altitude of the sun, that is, a low incident angle, can be taken in more effectively than the skylights arranged horizontally, and the reflected light SL is further reflected. So that it can be easily reflected under the skylight 5.

  Furthermore, the lower floor outer peripheral wall 2 has a daylighting area Ar, and a windowless part 2a which is a non-window part is provided in all the daylighting areas Ar. The reflected light La reflected by the reflecting portion 7 is further reflected by the daylighting area Ar to become reflected light Lb, and the reflected light Lb reaches the lower floor room 11 widely. Here, if there is a window in the daylighting area Ar, reflection in the daylighting area Ar may become unstable, or sufficient reflected light may not be obtained enough to illuminate the lower-floor room 11. However, providing the windowless portion 2a having no window in all the daylighting areas Ar stabilizes reflection at the daylighting area Ar, which is advantageous for improving the daylighting efficiency.

  Further, the lower floor room 11 has a blow-off portion 22 below the skylight 5, and the blow-off portion 22 extends in a direction D away from the daylighting area Ar across the interior wall 6. The reflected light Lb reflected by the daylighting area Ar spreads in a direction away from the daylighting area Ar across the interior wall 6. That is, if the lower floor room 11 is expanded in this direction, the reflected light Lb reflected by the daylighting area Ar is effectively used as compared with the case where the lower floor room 11 is expanded in other directions. It becomes easy to illuminate a wide range.

  In order to effectively use the reflected light Lb reflected by the daylighting area Ar, it is desirable that the daylighting area Ar is subjected to a finishing process that promotes irregular reflection, and the incident angle of the reflected light La from the reflecting unit 7 is Even if it changes, the windowless part 2a provided with the irregular reflection member (wallpaper etc.) which can form the reflected light Lb of the lower floor living room 11, ie, the horizontal direction, is desirable.

  As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited only to said embodiment. For example, in the present embodiment, an example in which a part of the upper floor outer peripheral portion is set as the receding wall has been described, but the entire upper floor outer peripheral portion is retracted inward from the lower floor outer peripheral portion, and as a result, the upper floor outer peripheral portion is The whole can be used as a receding wall.

  T ... Building, 1 ... Outer wall on the first floor, 2 ... Lower floor outer wall (lower floor outer wall), 2a ... No window part, 2p ... Upper second floor outer wall, 3 ... Third floor outer wall, 4 ... Retreat Wall: 4k: Lower part of receding wall, 5: Skylight, 6: Interior wall, 7: Reflecting part, 11: Lower floor room (lower floor space), 22: Blow-out part (lower floor space), Ar: Daylighting area, D ... in the direction away from the lighting area, F1 ... 1st floor, F2 ... 2nd floor (lower floor), F3 ... 3rd floor (upper floor).

Claims (4)

A building with multiple levels,
The outer wall of the lower floor,
On the upper floor, which is a floor directly above the lower floor, a receding wall provided to recede from the outer peripheral wall of the lower floor,
A skylight provided between the lower part of the receding wall and the upper part of the outer peripheral wall of the lower floor;
An interior wall continuous with the receding wall and provided below the skylight;
A lower floor space provided below the skylight in the lower floor;
And a planar reflecting portion formed on the skylight side surface of the interior wall. The skylight is inclined from the receding wall to the outer peripheral wall,
The building according to claim 1, wherein the outer peripheral wall side of the skylight is lower than the receding wall side of the skylight. The outer peripheral wall has a daylighting area where the light reflected by the reflecting portion can reach,
The building according to claim 1 or 2, wherein a windowless portion having no window is formed in all the daylighting areas.   The building according to claim 3, wherein the lower floor space extends in a direction away from the daylighting area across the interior wall.

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