JP6933904B2 - Housing - Google Patents

Description

The present invention relates to a house having an atrium space straddling the upper and lower floors.

The house may be provided with an atrium space that straddles the upper and lower floors. Patent Document 1 discloses a configuration in which a stairwell space is provided in a unit-type building in which a plurality of building units are combined. In the house of Patent Document 1, the atrium space is formed by using two building units stacked one above the other. Specifically, of these two building units, the building unit provided on the lower floor (hereinafter referred to as the lower floor atrium unit) has an opening formed on the upper surface thereof and is provided on the upper floor. An opening is formed on the lower surface of the upper floor atrium unit (hereinafter referred to as an upper floor atrium unit). By stacking the atrium units on the upper and lower floors, an atrium space straddling the upper and lower floors is formed through the openings of the atrium units.

Further, in the house of Patent Document 1, a plurality of lower floor atrium units are provided side by side, and a plurality of upper floor atrium units are provided side by side. Therefore, it is possible to form a large atrium space by using these a plurality of atrium units.

However, since the upper surface of the lower floor atrium unit is opened as described above, it is considered that it is difficult to secure the rigidity of the entire building if a plurality of such lower floor atrium units are adjacent to each other. Therefore, in Patent Document 1, in consideration of this point, a bridge unit that crosses the atrium space is provided so as to reinforce the opening. This makes it possible to form a large atrium space while ensuring the rigidity of the atrium space.

Japanese Unexamined Patent Publication No. 10-280547

Here, in the configuration of Patent Document 1, although it is possible to enhance the feeling of openness indoors by enlarging the atrium space, further improvement of the feeling of openness is required.

The present invention has been made in view of the above circumstances, and a main object of the present invention is to provide a house having a stairwell space and capable of further enhancing a feeling of openness.

In order to solve the above problems, the house of the first invention is a house having a lower floor portion and an upper floor portion adjacent to each other on the upper and lower sides, and a roof portion is provided above the upper floor portion, and is indoors. In, the atrium space formed straddling the lower floor portion and the upper floor portion, and the outdoor open space formed as an above-floor space having a floor portion while being adjacent to the atrium space across the outer wall portion. The outdoor open space is formed so as to straddle the lower floor portion and the upper floor portion on the outdoor side of the outer wall portion, and at least a part of the roof portion projects to the outdoor side of the outer wall portion. It is covered from above by a roof overhanging portion, and the outer wall portion is provided with a window portion that allows the outdoor open space to be seen from the atrium space.

According to the present invention, an atrium space straddling the upper and lower floors and an outdoor open space adjacent to each other across the outer wall portion are provided, and the outdoor open space is formed as a floor space covered by a roof portion. In this case, when looking at the outdoor side from the window in the atrium space, since the outdoor open space is provided with a floor and a roof, it feels like the floor of the atrium space continuously extends to the outdoor open space. In addition to being able to embrace, it is possible to embrace the feeling that the ceiling of the atrium space continuously extends to the open outdoor space. As a result, the feeling of openness can be further enhanced in the configuration provided with the atrium space.

In the first invention, the house of the second invention is a unit type house in which a plurality of building units having pillars, ceiling girders and floor girders are combined with each other, and the upper and lower building units are raised and lowered. A pair of atrium units that are stacked on the floor to form the atrium space are provided, and the atrium unit on the lower floor of the pair of atrium units has a ceiling opening surrounded by the ceiling girder on its upper surface. The atrium unit on the upper floor is formed with a floor opening surrounded by the floor girder on the lower surface thereof, and the atrium space is atrium on the upper and lower floors through the ceiling opening and the floor opening. As the atrium space, a first atrium space and a second atrium space provided apart from each other are provided, and as the building unit, the first atrium space and the second atrium space are stacked vertically. A pair of intermediate units are provided, and among the pair of intermediate units, the intermediate unit on the lower floor has a plurality of ceilings bridged between the pair of ceiling girders facing each other on the upper surface thereof. A beam is provided, and the intermediate unit of the upper floor is provided with a plurality of floor beams bridged between a pair of the floor girders facing each other on the lower surface thereof, and is provided in the middle of the lower floor. The lower floor intermediate space formed in the unit and the upper floor intermediate space formed in the upper intermediate unit are between the floor including the plurality of ceiling beams and the plurality of floor beams. The first atrium space and the second atrium space are continuous with each other through at least the lower floor intermediate space portion, and the first atrium space and the second atrium space are divided into upper and lower parts. It is characterized in that at least one of the atrium spaces is adjacent to the outdoor open space across the outer wall portion.

According to the present invention, in a unit type house, two atrium spaces are provided at positions separated from each other, and intermediate spaces are provided on upper and lower floors between the atrium spaces. Since each atrium space is continuous with each other through at least an intermediate space portion on the lower floor side, in this case, it is possible to form a large space in which each atrium space and the lower floor intermediate space portion are continuous. As a result, the feeling of openness indoors can be further enhanced.

Further, the pair of upper and lower atrium units forming the atrium space have openings on the upper surface and the lower surface, respectively, while the pair of upper and lower intermediate units forming each intermediate space have ceiling beams on the upper surface. Is provided, and a floor beam is provided on the lower surface. In this case, even if the atrium units having openings are arranged on the same floor, the feeling of openness can be enhanced while ensuring the rigidity around the atrium space.

In particular, in the conventional technique (technology of Patent Document 1) in which the rigidity of the atrium space is ensured by bridging a bridge unit that crosses the atrium space, the width of the atrium space is wide in the building unit provided with the bridge unit. It is made smaller by the unit, and as a result, the width of the atrium space is made smaller than the width of the building unit (1 unit). Therefore, there is a concern that the feeling of openness will decrease. In that respect, according to the above configuration, since the intermediate unit is arranged between each atrium unit and the rigidity is secured by the intermediate unit, the above-mentioned problem that the width of each atrium space is restricted occurs. Can be avoided. Therefore, the feeling of openness can be further enhanced as compared with the conventional technique.

In the house of the third invention, in the second invention, a first partition portion for partitioning both spaces is provided between the upper floor intermediate space portion and the first atrium space, and the upper floor intermediate space is provided. A second partition that separates the two spaces is provided between the portion and the second atrium space, and both the first partition and the second partition are composed of a waist wall portion or a handrail portion. It is characterized by.

According to the present invention, the space between the upper floor intermediate space and the first atrium space and the space between the upper floor intermediate space and the second atrium space are partitioned by a partition portion composed of a waist wall portion or a handrail portion, respectively. There is. In this case, the upper floor intermediate space and the first atrium space are communicated with each other via above the partition (first partition), and the upper floor intermediate space and the second atrium space are connected to the partition (first). Since the first atrium space and the second atrium space are communicated with each other via the upper part of the partition portion), the first atrium space and the second atrium space are connected to each other via the upper intermediate space portion. As a result, each atrium space is continuous in each of the lower floor and the upper floor, so that the feeling of openness can be further enhanced.

In the third invention, when the direction in which the first atrium space and the second atrium space are lined up is the atrium arrangement direction, the intermediate unit has a length in the atrium arrangement direction. The space is smaller than the atrium unit, and the upper intermediate space portion is a passage space extending in a direction orthogonal to the atrium arrangement direction.

According to the present invention, since the length of the intermediate unit in the blow-out arrangement direction is smaller than the length of the blow-by unit (in other words, the middle unit is formed narrowly), the first blow-by space and the second blow-by space are formed. You can get closer to the space. As a result, it is possible to easily feel the continuity of each atrium space, and it is possible to further enhance the feeling of openness. Further, since the intermediate unit is narrowed in width and the intermediate space on the upper floor is used as the passage space, the intermediate space on the upper floor can be preferably used.

In any of the second to fourth inventions, the house of the fifth invention is the first atrium space in the atrium arrangement direction in which the first atrium space and the second atrium space are lined up as the outdoor open space. A first outdoor open space provided on the opposite side of each intermediate space portion and a second outdoor open space provided on the opposite side of each intermediate space portion across the second atrium space. The first outdoor open space is adjacent to the first atrium space across the first outer wall portion as the outer wall portion, and the first outer wall portion has the first window portion as the window portion. A first window portion is provided so that the first outdoor open space can be seen from the atrium space, and the second outdoor open space is adjacent to the second atrium space across the second outer wall portion as the outer wall portion. The second outer wall portion is provided with a second window portion as the window portion so that the second outdoor open space can be seen from the second atrium space.

According to the present invention, the first outdoor open space, the first atrium space, the intermediate space portion, the second atrium space, and the second outdoor open space are arranged in the atrium arrangement direction in which the first atrium space and the second atrium space are lined up. It will be arranged in this order. Therefore, it is possible to greatly enhance the feeling of openness indoors.

In the fifth aspect of the invention, the house of the sixth invention has, as the atrium unit, a pair of upper and lower first atrium units forming the first atrium space and a pair of upper and lower second atrium units forming the second atrium space. A plurality of building unit groups including the units and a plurality of the building units provided side by side in the blowout direction on each of the lower floor portion and the upper floor portion are provided, and the plurality of building unit groups include the above. A first building unit group including a pair of first stairwell units, the pair of second stairwell units, and the pair of intermediate units, and a pair of second buildings provided on both sides of the first building unit group. A unit group and a unit group are included, and each of the second building unit groups includes a first overhanging unit provided at least on the lower floor so as to project to the outside of the first atrium unit, and said. It is characterized in that a second overhanging unit is provided so as to project to the outdoor side of the second atrium unit.

According to the present invention, as a building unit group, a first building unit group including a first atrium unit, a second atrium unit, and an intermediate unit, and a pair of second building unit groups on both sides of the first building unit group. And have. In addition, each second building unit group has a first overhanging unit that overhangs the first atrium unit on the outdoor side and a second overhanging unit that overhangs the second atrium unit on the outdoor side, at least on the lower floors. An output unit is provided. In this case, since each of the first overhanging units can form a pair of overhanging portions that overhang on the outdoor side of the first outer wall portion, the overhanging portions allow the first overhanging portion to pass through the first window portion from the outside. 1 It is possible to block the line of sight to the atrium space. Further, similarly to this, since each second overhanging unit can form a pair of overhanging portions extending to the outdoor side from the second outer wall portion, the overhanging portions can form a pair of overhanging portions from the outside to the second window portion. It is possible to block the line of sight to the second atrium space through. Therefore, in this case, the feeling of openness can be greatly enhanced while ensuring a certain level of privacy.

In the sixth invention, the house of the seventh invention is provided with the first overhanging unit in only one of the second building unit groups or both in the upper floor. The first overhanging unit is not provided, and similarly, in the upper floor, the second overhanging unit is provided in only one of the second building unit groups, or both of them. The second overhanging unit is not provided.

According to the present invention, in the upper floor, only one of the second building unit groups is provided with the first overhang unit, or both are not provided with the first overhang unit. Similarly, on the upper floor, only one of the second building unit groups is provided with the second overhang unit, or both are not provided with the second overhang unit. .. As a result, the feeling of openness can be further enhanced as compared with the case where the first overhanging unit and the second overhanging unit are provided in both of the second building unit groups on the upper floor.

In addition, it is considered sufficient if the line of sight from the outside can be blocked in the lower floors, but according to the above configuration, the first overhang unit and the second overhang are in each of the second building unit groups in the lower floors. Since the output unit is provided, it is possible to further enhance the feeling of openness while ensuring a certain level of privacy.

External view showing the appearance of a house. A plan view showing the floor plan of the first floor of a house. Top view showing the floor plan of the second floor of the house. A vertical sectional view showing the inside of a house. The perspective view which shows the arrangement composition of each building unit which constitutes a house. (A) is a diagram showing the arrangement configuration of each building unit on the first floor portion, and (b) is a diagram showing the arrangement configuration of each building unit on the second floor portion. A perspective view of the configuration of the building unit. The plan view which shows the structure of each building unit of the 2nd floor part in the middle building unit group. The perspective view which shows the structure of each atrium unit arranged up and down.

Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. In this embodiment, the house is embodied as a two-story unit type house. A unit-type house is composed of a plurality of building units having ceiling beams, floor beams and columns. FIG. 1 is an external view showing the appearance of the house, FIG. 2 is a plan view showing the floor plan of the first floor part of the house, FIG. 3 is a plan view showing the floor plan of the second floor part, and FIG. It is a vertical sectional view which shows. Note that FIG. 4 corresponds to the cross-sectional view taken along the line AA of FIG. 2 and the cross-sectional view taken along the line BB of FIG.

As shown in FIG. 1, the house 10 includes a building main body 13 having a first floor portion 11 and a second floor portion 12, and a roof portion 14 provided above the building main body 13. The building body 13 is configured by combining a plurality of building units with each other. Further, the roof portion 14 is composed of a ridge-type roof. The first floor portion 11 corresponds to the lower floor portion, and the second floor portion 12 corresponds to the upper floor portion.

As shown in FIG. 2, the first floor portion 11 of the house 10 has an entrance 21, a living / dining room 22, a kitchen 23, a living room 24, a storage room 25, a washroom 26, and a toilet 27 as indoor spaces. And a bathroom 28 are provided. The entrance 21 is provided on the south side of the first floor portion 11. The entrance 21 is provided with an entrance 31, and the entrance 31 opens to the south side of the house 10. Therefore, in the main house 10, the south side of the house 10 is the front of the house, the depth direction of the house 10 is the north-south direction, and the frontage direction (width direction) of the house 10 is the east-west direction. The entrance 21 leads to the outdoor approach 33 (passage) through the entrance 31.

The entrance 21 is located substantially in the center of the house 10 in the east-west direction (the direction of the frontage of the house). A living / dining room 22 is adjacent to the west side of the entrance 21. The living / dining room 22 is a living room space having a function as a living room and a function as a dining room. As shown in FIG. 4 in addition to FIG. 2, the living / dining room 22 extends in the north-south direction (the depth direction of the house), and is provided so as to straddle the outer wall portion 36 on the north side and the outer wall portion 37 on the south side. The living / dining room 22 has a stairwell space 22a on the north side and the south side, respectively. It is 22b. Both of these atrium spaces 22a and 22b are formed so as to straddle the first floor portion 11 and the second floor portion 12, and the atrium space 22a (hereinafter referred to as the first atrium space 22a) is located on the north side, and the atrium space 22b (hereinafter referred to as the first atrium space 22a). Hereinafter, the second atrium space 22b) is located on the south side. The first atrium space 22a is adjacent to the outer wall portion 36 on the north side thereof, and the second atrium space 22b is adjacent to the outer wall portion 37 on the south side thereof. Further, in the first atrium space 22a, a staircase 34 leading to the second floor portion 12 is provided.

In the living / dining room 22, the atrium spaces 22a and 22b are arranged apart from each other, and the space between the atrium spaces 22a and 22b is an intermediate space portion 22c. In the living / dining room 22, only this intermediate space 22c is a non-atrium space that is not an atrium space. In the living / dining room 22, the atrium spaces 22a and 22b are continuous through the intermediate space portion 22c, and the living / dining room 22 is formed as a large space by the continuous spaces 22a to 22c. Further, the intermediate space portion 22c communicates with the entrance 21 (and thus the entrance hall) via the entrance / exit 39. The living / dining room 22 corresponds to the living room space, and the intermediate space portion 22c corresponds to the lower intermediate space portion.

Incidentally, the boundary portion between the first atrium space 22a and the intermediate space portion 22c is not provided with a partition wall for partitioning the two spaces 22a and 22c. Specifically, the partition wall extends over the entire boundary portion. Not provided. Similarly, the boundary portion between the second atrium space 22b and the intermediate space portion 22c is not provided with a partition wall for partitioning the two spaces 22b and 22c. There is no partition wall.

A kitchen 23 is adjacent to the west side of the living / dining room 22. The kitchen 23 is a continuous space continuous with the living / dining room 22. A storage room 25 is provided on the north side of the kitchen 23. Food and daily necessities can be stored in the storage room 25, which also serves as a so-called pantry.

A living room 24 is provided adjacent to the east side of the entrance 21. The living room 24 is, for example, a room in which the grandmother stays, and a veranda 41 is provided on the south side of the living room 24. A washroom 26 is adjacent to the north side of the living room 24, and the toilet 27 and the bathroom 28 can be accessed from the washroom 26.

Further, in addition to the indoor spaces 21 to 28 described above, terrace spaces 43 and 44 are provided on the first floor portion 11 adjacent to the outdoor side of the outer wall portions 36 and 37. The explanation of these terrace spaces 43 and 44 will be described later.

Next, the floor plan of the second floor portion 12 will be described with reference to FIG.

As shown in FIG. 3, the second floor portion 12 is provided with a living room 51, a children's room 52, a laundry room 53, a bathroom 54, a toilet 55, and an aisle space 56 as indoor spaces. The living room 51 is provided on the east side of the second floor portion 12. The living room 51 is a room used by parents and extends from north to south. The living room 51 has a bedroom space 51a on which a bed or the like is placed on the north side, and a living space 51b on which a sofa or the like is placed on the south side. Further, on the west side of the second floor portion 12, a children's room 52, a laundry room 53, a bathroom 54, and a toilet 55 are provided, respectively.

In addition to the indoor spaces 51 to 56, balconies 57 and 63 are provided on the second floor portion 12. The balcony 57 is provided adjacent to the south side of the living room 51 (specifically, the living space 51b), and the balcony 63 is provided adjacent to the north side of the child room 52.

In the second floor portion 12, as shown in FIG. 4 in addition to FIG. 3, the first atrium space 22a and the second atrium space 22b are atrium from the first floor portion 11. In the second floor portion 12, a passage space 56 is formed between the atrium spaces 22a and 22b. The passage space 56 leads to each of the indoor spaces 51 to 55, and also leads to a staircase 34 extending to the first floor portion 11. The passage space 56 is formed above (directly above) the intermediate space portion 22c on the first floor portion 11 and extends in the east-west direction (residential frontage direction). In other words, the passage space 56 extends in a direction orthogonal to the direction in which the first atrium space 22a and the second atrium space 22b are lined up. The passage space 56 corresponds to the upper intermediate space. Further, in the present embodiment, the direction in which the stairwells are lined up is the same as the direction of the depth of the house (north-south direction).

The passage space 56 is vertically partitioned from the intermediate space portion 22c by the passage floor portion 58, which is the floor portion thereof. In the passage floor portion 58, waist wall portions 59 are erected on both sides of the passage space 56. Although not shown, the waist wall portion 59 has a plurality of pillar portions provided at predetermined intervals along the passage space 56, and a wall plate portion provided straddling each of the pillar portions. There is. In this case, a transparent plate such as a transparent glass plate is used as the wall plate portion.

One of the waist wall portions 59 on both sides of the passage space 56 (hereinafter, a is added to this reference numeral) is provided between the passage space 56 and the first atrium space 22a. .. The passage space 56 and the first atrium space 22a are separated from each other by the waist wall portion 59a. The waist wall portion 59a corresponds to the first partition portion. Further, the passage space 56 and the first atrium space 22a communicate with each other through above the waist wall portion 59a.

On the other hand, the other waist wall portion 59 (hereinafter, this reference numeral b is attached) is provided between the passage space 56 and the second atrium space 22b. The passage space 56 and the second atrium space 22b are separated from each other by the waist wall portion 59b. The waist wall portion 59b corresponds to the second partition portion. Further, the passage space 56 and the second atrium space 22b communicate with each other through above the waist wall portion 59b.

Next, the configurations of the terrace spaces 43 and 44 and their surroundings will be described.

Of the terrace spaces 43 and 44, the terrace space 43 is provided adjacent to the north side of the living / dining room 22 (specifically, the first atrium space 22a) with the outer wall portion 36 interposed therebetween. The terrace space 43 is an on-floor space formed by laying a deck 43a (floor portion) outdoors, and the floor surface is set at substantially the same height as the floor surface of the living / dining room 22. .. The outer wall portion 36 corresponds to the first outer wall portion.

The terrace space 43 is formed so as to straddle the first floor portion 11 and the second floor portion 12 on the outdoor side of the outer wall portion 36. A part of the terrace space 43 is covered from above by a roof overhanging portion 14a (eave portion) that overhangs the outer wall portion 36 on the roof portion 14 on the outdoor side. In this case, in the terrace space 43, the space below the roof overhanging portion 14a corresponds to the space under the first eaves. The terrace space 43 corresponds to the first outdoor open space.

The outer wall portion 36 is formed with a window portion 61 that connects the living / dining room 22 (specifically, the first atrium space 22a) and the terrace space 43. The window portion 61 corresponds to the first window portion. The window portion 61 includes a first floor window portion 61a provided on the first floor portion 11 of the outer wall portion 36 and a second floor window portion 61b provided on the second floor portion 12 of the outer wall portion 36. The first floor window portion 61a is formed as a sweep-out window, and the living / dining room 22 and the terrace space 43 can be accessed through the first floor window portion 61a. Further, a glass window 62 is arranged in each of the window portions 61a and 61b. At least a part of the glass window 62 can be opened and closed.

More specifically with respect to the window portions 61a and 61b, the opening width of the first floor window portion 61a is made larger than half the width of the first atrium space 22a (the length in the opening width direction), and more specifically, the first atrium space. It is made larger than 3/4 of the width of 22a. Further, the opening height of the first floor window portion 61a is set to be substantially the same as or slightly smaller than the distance (ceiling height) from the floor surface to the ceiling surface in the first floor portion 11.

Similarly, the opening width of the second floor window portion 61b is made larger than half the width of the first atrium space 22a, and more specifically, it is made larger than 3/4 of the width of the first atrium space 22a. The opening height of the second-floor window portion 61b is set to be substantially the same as or slightly smaller than the distance (ceiling height) from the floor surface to the ceiling surface in the second-floor portion 12. As described above, both the first-floor window portion 61a and the second-floor window portion 61b are windows having a large opening, thereby enhancing the openness of the living / dining room 22. Further, in the present embodiment, each of the window portions 61a and 61b has the same size.

Subsequently, the terrace space 44 will be described. The terrace space 44 is provided adjacent to the south side of the living / dining room 22 (specifically, the second atrium space 22b) across the outer wall portion 37. The terrace space 44 is an on-floor space formed by laying a deck 44a (floor portion) outdoors, and the floor surface is set at substantially the same height as the floor surface of the living / dining room 22. .. The outer wall portion 37 corresponds to the second outer wall portion.

The terrace space 44 is formed so as to straddle the first floor portion 11 and the second floor portion 12 on the outdoor side of the outer wall portion 37. A part of the terrace space 44 is covered from above by a roof overhanging portion 14b (eave portion) that overhangs the outer wall portion 37 on the roof portion 14 on the outdoor side. In this case, in the terrace space 44, the space below the roof overhanging portion 14b corresponds to the space under the second eaves. The terrace space 44 corresponds to the second outdoor open space.

Incidentally, the decks 43a and 44a do not necessarily have to be used as the floors forming the terrace spaces 43 and 44, and tiles, concrete floors and the like may be used in addition to the decks.

The outer wall portion 37 is formed with a window portion 64 that connects the living / dining room 22 (specifically, the second atrium space 22b) and the terrace space 44. The window portion 64 corresponds to the second window portion. The window portion 64 includes a first floor window portion 64a provided on the first floor portion 11 of the outer wall portion 37 and a second floor window portion 64b provided on the second floor portion 12 of the outer wall portion 37. The first floor window portion 64a is formed as a sweep-out window, and the living / dining room 22 and the terrace space 44 can be accessed through the first floor window portion 64a. Further, a glass window 65 is arranged in each of the window portions 64a and 64b. At least a part of the glass window 65 can be opened and closed.

More specifically with respect to the windows 64a and 64b, the opening width of the first floor window portion 64a is made larger than half the width of the second atrium space 22b (the length in the opening width direction), and more specifically, the second atrium space. It is made larger than 3/4 of the width of 22b. Further, the opening height of the first floor window portion 64a is set to be substantially the same as or slightly smaller than the distance (ceiling height) from the floor surface to the ceiling surface in the first floor portion 11.

Similarly, the opening width of the second floor window portion 64b is made larger than half the width of the second atrium space 22b, and more specifically, it is made larger than 3/4 of the width of the second atrium space 22b. The opening height of the second-floor window portion 64b is set to be substantially the same as or slightly smaller than the distance (ceiling height) from the floor surface to the ceiling surface in the second-floor portion 12. As described above, both the first-floor window portion 64a and the second-floor window portion 64b are windows having a large opening, thereby enhancing the openness of the living / dining room 22. Further, in the present embodiment, each of the window portions 64a and 64b has the same size.

Here, as described above, the main house 10 is a unit type house formed by using a plurality of building units 70. Hereinafter, the configuration of each building unit 70 constituting the unit-type house 10 will be described with reference to FIGS. 5 to 7. FIG. 5 is a perspective view showing an arrangement configuration of each building unit 70 constituting the house 10. 6A and 6B are diagrams showing the arrangement configuration of each building unit 70 on the first floor portion 11, and FIG. 6B is a diagram showing the arrangement configuration of each building unit 70 on the second floor portion 12. FIG. 7 is a perspective view of the configuration of the building unit 70.

First, the configuration of the building unit 70 will be described with reference to FIG. As shown in FIG. 7, the building unit 70 has four pillars 71 arranged at its four corners, and four ceiling girders 72 and floor girders 73 connecting the upper ends and lower ends of the pillars 71, respectively. And. A rectangular parallelepiped skeleton (frame) is formed by the columns 71, the ceiling girder 72, and the floor girder 73. The pillar 71 is made of square tubular steel. The ceiling girder 72 and the floor girder 73 are made of channel steel having a U-shaped cross section, and are installed so that their openings face each other.

A plurality of ceiling beams 75 are laid at predetermined intervals between the ceiling beams 72 facing each other on the long sides of the building unit 70. Similarly, a plurality of floor girders 76 are bridged between the opposite floor girders 73 on the long sides of the building unit 70 at predetermined intervals. The ceiling beam 75 and the floor beam 76 are provided at the same interval and at positions corresponding to the upper and lower sides. The ceiling beam 75 is made of lip channel steel, and the floor beam 76 is made of square steel. The ceiling beam 75 supports the ceiling material (not shown), and the floor beam 76 supports the floor material (not shown).

As shown in FIGS. 5 and 6, the first floor portion 11 and the second floor portion 12 of the building body 13 are each composed of a plurality of building units 70 provided side by side. The building body 13 is roughly divided into three building unit groups X1 to X3 arranged in the frontage direction (east-west direction) of the house. Each of these building unit groups X1 to X3 includes a plurality of building units 70 arranged in a row in the housing depth direction (north-south direction) on the first floor portion 11 and the second floor portion 12. In each of the building unit groups X1 to X3, the building units 70 are arranged side by side (in a plan view) in each of the first floor portion 11 and the second floor portion 12. Of the building unit groups X1 to X3, the building unit group X1 is located in the middle portion, and the building unit groups X2 and X3 are located on both sides of the building unit group X1. In this case, the building unit group X1 corresponds to the first building unit group, and the building unit groups X2 and X3 correspond to the second building unit group, respectively.

The building unit group X1 includes a pair of upper and lower atrium units 70A and 70B forming the first atrium space 22a and a pair of upper and lower atrium units 70C and 70D forming the second atrium space 22b as the building unit 70. A pair of upper and lower intermediate units 70E and 70F arranged between the atrium units 70A and 70B and the pair of atrium units 70C and 70D are included.

Of the pair of upper and lower atrium units 70A and 70B, the atrium unit 70A is arranged on the first floor portion 11, and the atrium unit 70B is arranged on the second floor portion 12. All of these atrium units 70A and 70B have the same size, and are arranged in a state of being stacked one above the other. Of the pair of upper and lower atrium units 70C and 70D, the atrium unit 70C is arranged on the first floor portion 11, and the atrium unit 70D is arranged on the second floor portion 12. All of these atrium units 70C and 70D have the same size, and are arranged in a state of being stacked one above the other. The atrium units 70C and 70D have the same size as the atrium units 70A and 70B. Further, the atrium units 70A and 70B correspond to the first atrium unit, and the atrium units 70C and 70D correspond to the second atrium unit, respectively.

Subsequently, the configurations of the atrium units 70A to 70D will be described with reference to FIGS. 8 and 9. FIG. 8 is a plan view showing the configuration of each building unit 70B, 70D, 70F of the second floor portion 12 in the building unit group X1. Note that FIG. 8 shows the configuration of the lower surface portion of each building unit 70B, 70D, 70F. Further, FIG. 9 is a perspective view showing the configurations of the atrium units 70A and 70B (70C and 70D) arranged one above the other. Note that FIG. 9 shows the stairwell units 70A and 70B (70C and 70D) separated from each other. Further, in the present embodiment, the atrium units 70A and 70B forming the first atrium space 22a and the atrium units 70C and 70D forming the second atrium space 22b both have the same configuration (specifically, the same skeleton configuration). ), In addition to 70A and 70B, 70C and 70D are shown in parentheses as the codes of the atrium units arranged one above the other.

As shown in FIGS. 8 and 9, the vertically arranged atrium units 70A and 70B (70C and 70D) are partially different from the normal building unit 70 shown in FIG. 7. That is, each atrium unit 70A. Of the 70B (70C, 70D), the ceiling unit 70A (70C) of the first floor portion 11 is not provided with the ceiling beam 75 on the upper surface thereof. Therefore, the ceiling unit 70A (70C) is formed with a ceiling opening 78 surrounded by ceiling girders 72 on the upper surface thereof. Further, the atrium unit 70B (70D) of the second floor portion 12 is not provided with the floor beam 76 on the lower surface portion thereof. Therefore, the atrium unit 70B (70D) is formed with a floor opening 79 surrounded by each floor girder 73 on the lower surface portion thereof.

In a state where the atrium units 70A and 70B (70C, 70D) are stacked one above the other, each atrium is passed through the ceiling opening 78 of the atrium unit 70A (70C) and the floor opening 79 of the atrium unit 70B (70D). The internal spaces of the units 70A and 70B are communicated vertically. As a result, the atrium space 22a (22b) is formed by the internal spaces of the atrium units 70A and 70B (70C, 70D) that communicate with each other.

In the atrium unit 70A (70C) of the first floor portion 11, one reinforcing beam 77 (see the alternate long and short dash line in FIG. 8) may be provided between the pair of ceiling girders 72. Further, in the atrium unit 70B (70D) of the second floor portion 12, one reinforcing beam 77 may be bridged between the pair of floor girders 73.

Subsequently, a pair of upper and lower intermediate units 70E and 70F will be described.

As shown in FIG. 6, of the pair of upper and lower intermediate units 70E and 70F, the intermediate unit 70E is provided on the first floor portion 11, and the intermediate unit 70F is provided on the second floor portion 12. Inside the intermediate unit 70E, an intermediate space portion 22c of the living / dining room 22 is formed, and inside the intermediate unit 70F, a passage space 56 of the second floor portion 12 is formed.

The intermediate units 70E and 70F are all of the same size and are arranged in a vertically stacked state. The length of each of the intermediate units 70E and 70F in the longitudinal direction (in plan view) is the same as the length in the longitudinal direction of the stairwell units 70A to 70D, while the length in the lateral direction (in plan view) is the same. L1 is made smaller than the length L2 in the lateral direction of the atrium units 70A to 70D (L1 <L2). Specifically, each of the intermediate units 70E and 70F has a length L1 in the lateral direction that is approximately half the length L2 in the lateral direction of the atrium units 70A to 70D (see FIG. 8).

Each of the intermediate units 70E and 70F has the configuration of the normal building unit 70 shown in FIG. 7. Therefore, of the intermediate units 70E and 70F, the intermediate unit 70E is provided with a plurality of ceiling beams 75 on the upper surface thereof, and the intermediate unit 70F is provided with a plurality of floor beams 76 on the lower surface thereof. ing. Then, the passage floor portion 58 is formed including these ceiling beams 75 and floor beams 76. The aisle floor 58 corresponds to the floor.

Subsequently, each building unit group X2 and X3 will be described.

As shown in FIGS. 5 and 6A, the first floor portions 11 of the building unit groups X2 and X3 have the building units 70 as the atrium units 70A and 70B of the building unit group X1 (in other words, the outer wall portion 36). Rather than the house depth direction X (in other words, the direction in which the first atrium space 22a and the second atrium space 22b are lined up), the overhanging units 70G and 70H are provided so as to project to the outdoor side, and the building unit group X1. Including the overhanging units 70I and 70J provided so as to project to the outdoor side in the depth direction X of the house from the atrium units 70C and 70D (in other words, the outer wall portion 37). Of these overhanging units 70G to 70J, the overhanging units 70G and 70I are provided in the building unit group X2, and the overhanging units 70H and 70J are provided in the building unit group X3. The overhanging units 70G and 70H of the building unit groups X2 and X3 correspond to the first overhanging unit, and the overhanging units 70I and 70J of the building unit groups X2 and X3 correspond to the second overhanging unit.

The overhanging units 70G and 70H of the building unit groups X2 and X3 form a pair of lower floor overhanging portions 81 overhanging the outer wall portion 36 on the outdoor side of the building main body 13. Further, between the overhanging units 70G and 70H, there is a unit external space in which the building unit 70 is not provided, and a terrace space 43 is formed including the unit external space. In this case, at least a part of the terrace space 43 is formed so as to be sandwiched between the overhanging units 70G and 70H (each lower floor overhanging portion 81), and more specifically, the terrace space 43 faces each other at each lower floor overhanging portion 81. It is formed inside surrounded by a pair of wall portions 81a and an outer wall portion 36.

Similarly, the overhanging units 70I and 70J of the building unit groups X2 and X3 form a pair of lower floor overhanging portions 82 overhanging the outer wall portion 37 on the outdoor side of the building main body 13. .. Between the overhanging units 70I and 70J, there is a unit exterior space in which the building unit 70 is not provided, and a terrace space 44 is formed including the unit exterior space. In this case, at least a part of the terrace space 44 is formed so as to be sandwiched between the overhanging units 70I and 70J (each lower floor overhanging portion 82), and more specifically, the terrace space 44 faces each other at each lower floor overhanging portion 82. It is formed inside surrounded by a pair of wall portions 82a and an outer wall portion 37.

As described above, on the first floor portion 11, a pair of overhanging units 70G, 70I (70H, 70J) overhanging from the building unit group X1 are provided on both sides of each building unit group X2 and X3 in the housing depth direction X, respectively. Has been done. As a result, on the first floor portion 11, a plurality of building units 70 constituting each building unit group X1 to X3 are arranged so as to form a substantially H-shape in a plan view as a whole.

Next, the second floor portion 12 of each building unit group X2 and X3 will be described. As shown in FIGS. 5 and 6B, the second floor portion 12 of the building unit group X2 has a housing depth as the building unit 70, which is larger than the atrium units 70A and 70B (in other words, the outer wall portion 36) of the building unit group X1. An overhanging unit 70K provided overhanging to the outdoor side in direction X is included. The overhanging unit 70K is arranged above the overhanging unit 70G on the first floor portion 11. The overhanging unit 70K corresponds to the first overhanging unit.

Further, in the second floor portion 12 of the building unit group X3, as the building unit 70, the overhanging unit 70 overhanging to the outdoor side in the depth direction X of the house from the atrium units 70A and 70B of the building unit group X1 does not exist. .. Therefore, in the second floor portion 12, the first overhanging unit 70K is provided only in the building unit group X2 among the building unit groups X2 and X3. Further, the overhanging unit 70K forms an upper floor overhanging portion 83 overhanging on the outdoor side of the outer wall portion 36 on the building main body 13. In the building unit group X3, a balcony 63 is formed above the overhanging unit 70H on the first floor portion 11.

The second floor portion 12 of the building unit group X3 is provided as a building unit 70 so as to project to the outdoor side in the depth direction X of the house from the atrium units 70C and 70D (in other words, the outer wall portion 37) of the building unit group X1. The output unit 70L is included. The overhanging unit 70L is arranged above the overhanging unit 70J on the first floor portion 11. The overhanging unit 70L corresponds to the second overhanging unit.

Further, on the second floor portion 12 of the building unit group X2, as the building unit 70, there is no overhanging unit 70 overhanging to the outdoor side in the housing depth direction X from the atrium units 70C and 70D of the building unit group X1. .. Therefore, in the second floor portion 12, the second overhanging unit 70L is provided only in the building unit group X3 among the building unit groups X2 and X3. Further, the overhanging unit 70L forms an upper floor overhanging portion 84 overhanging on the outdoor side of the outer wall portion 37 on the building main body 13. In the building unit group X2, a balcony 57 is formed above the overhanging unit 70I on the first floor portion 11.

As described above, in the second floor portion 12, only one of the building unit groups X2 and X3, the building unit group X2, overhangs the atrium units 70A and 70B of the building unit group X1 in the housing depth direction X. 70K is provided, and only the other building unit group X3 is provided with an overhanging unit 70L overhanging the atrium units 70C and 70D of the building unit group X1 in the depth direction X of the house. As a result, on the second floor portion 12, a plurality of building units 70 constituting each building unit group X1 to X3 are arranged so as to form a substantially N-shape in a plan view as a whole.

According to the configuration of the present embodiment described in detail above, the following excellent effects can be obtained.

The atrium spaces 22a and 22b straddling the first floor portion 11 and the second floor portion 12 and the terrace spaces 43 and 44 adjacent to the atrium spaces 22a and 22b and the outer wall portions 36 and 37 are provided, and the terrace space 43 is provided. , 44 are formed as floor spaces on the decks 43a and 44a, and are covered from above by roof overhangs 14a and 14b. In this case, in the atrium spaces 22a and 22b, when the outdoor side is viewed from the windows 61 and 64, the terrace spaces 43 and 44 are provided with floors (deck 43a and 44a) and roofs (roof overhangs 14a and 14b). Therefore, it is possible to give a feeling that the floors of the atrium spaces 22a and 22b are continuously extended to the terrace spaces 43 and 44, and the ceilings of the atrium spaces 22a and 22b are extended to the terrace spaces 43 and 44. You can feel the feeling that it is spreading continuously. As a result, the atrium spaces 22a and 22b (and thus the living / dining room 22) are provided, and the feeling of openness can be further enhanced.

In the living / dining room 22, two atrium spaces 22a and 22b are provided at positions separated from each other, and an intermediate space portion 22c is provided in the first floor portion 11 between the atrium spaces 22a and 22b. Then, the atrium spaces 22a and 22b were made continuous with each other via the intermediate space portion 22c. In this case, since the living / dining room 22 can be formed as a large space in which the atrium spaces 22a and 22b and the intermediate space portion 22c are continuous, the feeling of openness can be further enhanced.

Further, between the atrium spaces 22a and 22b, a passage space 56 is provided in the second floor portion 12, and the passage space 56 is partitioned between the aisle spaces 22a and 22b by the waist wall portions 59a and 59b. In this case, the passage space 56 and the first atrium space 22a are communicated with each other via the upper part of the waist wall portion 59a, and the passage space 56 and the second atrium space 22b are communicated with each other via the upper part of the waist wall portion 59b. Therefore, the atrium spaces 22a and 22b are continuous with each other via the passage space 56. As a result, the atrium spaces 22a and 22b are continuous in each of the first floor portion 11 and the second floor portion 12, so that the feeling of openness can be further enhanced.

Further, for each of the waist wall portions 59a and 59b, since the wall plate portion is formed of a transparent plate such as transparent glass, the space between the atrium spaces 22a and 22b and the passage space 56 is provided via the waist wall portions 59a and 59b. Can be made visible. As a result, the feeling of openness can be further improved.

Since the length L1 of the intermediate units 70E and 70F in the depth direction X of the house (in other words, the direction in which the stairwells are lined up) is made smaller than the length L2 of the stairwell units 70A to 70D, the first stairwell space 22a and the second stairwell space 22b are made smaller than each other. You can get closer. As a result, the continuity of the atrium spaces 22a and 22b can be easily felt, and the feeling of openness can be further enhanced. Further, since the intermediate units 70E and 70F are configured to be narrow and the upper floor intermediate space portion in the intermediate unit 70F is the passage space 56, the upper floor intermediate space portion can be preferably used. It will be possible.

The first atrium space 22a was adjacent to the terrace space 43 across the outer wall portion 36, and the second atrium space 22b was adjacent to the terrace space 44 across the outer wall portion 37. In this case, the terrace space 43, the first atrium space 22a, the intermediate space portion 22c, the second atrium space 22b, and the terrace space 44 are arranged in this order from north to south (in other words, the atrium arrangement direction). Therefore, it is possible to greatly enhance the feeling of openness indoors.

Ceiling openings 78 and floor openings 79 are formed in the pair of upper and lower atrium units 70A and 70B (70C, 70D) forming the atrium spaces 22a (22b), respectively, while they are provided between the atrium spaces 22a and 22b. The intermediate units 70E and 70F are provided with ceiling beams 75 on the upper surface and floor beams 76 on the lower surface. In this case, even if the atrium units 70A to 70D having the openings 78 and 79 are arranged on the same floor, the feeling of openness can be enhanced while ensuring the rigidity around the atrium spaces 22a and 22b.

On the first floor 11 of each building unit group X2 and X3, the overhanging unit overhanging to the outdoor side in the depth direction X of the house from the atrium units 70A and 70B (corresponding to the first atrium unit) of the building unit group X1, respectively. 70G and 70H (corresponding to the first overhanging unit) are provided, and overhanging to the outdoor side in the depth direction X of the house from the atrium units 70C and 70D (corresponding to the second atrium unit) of the building unit group X1. Units 70I and 70J (corresponding to the second overhanging unit) were provided. In this case, since each of the overhanging units 70G and 70H can form a pair of lower floor overhanging portions 81 overhanging to the outdoor side of the outer wall portion 36, the lower floor overhanging portions 81 can form a window portion from the outside. It is possible to block the line of sight to the first atrium space 22a (living / dining room 22) through 61. Further, similarly to this, since each of the overhanging units 70I and 70J can form a pair of lower floor overhanging portions 82 overhanging to the outdoor side of the outer wall portion 37, the lower floor overhanging portions 82 can be used. It is possible to block the line of sight from the outside to the second atrium space 22b (living / dining room 22) through the window portion 64. Therefore, in this case, the feeling of openness can be greatly enhanced while ensuring a certain level of privacy.

In the second floor portion 12, of the building unit groups X2 and X3, only the building unit group X2 has an overhanging unit 70K (overhanging unit 70K) that overhangs the atrium units 70A and 70B of the building unit group X1 in the depth direction X of the house. The overhanging unit 70L (second overhanging unit) is provided and is provided only in the building unit group X3 and overhangs to the outdoor side in the housing depth direction X from the atrium units 70C and 70D of the building unit group X1. (Equivalent to the output unit) was provided. In this case, the feeling of openness can be further enhanced as compared with the case where the first overhanging unit and the second overhanging unit are provided on both of the building unit groups X2 and X3 on the second floor portion 12.

Further, it is considered sufficient that the line of sight from the outside can be blocked by the first floor portion 11, but in the above configuration, the first overhang unit and the first overhang unit and each of the building unit groups X2 and X3 are formed in the first floor portion 11. Since the second overhanging unit is provided, it is possible to further enhance the feeling of openness while ensuring a certain degree of privacy.

Since the roof overhangs 14a and 14b are provided above the terrace spaces 43 and 44, the atrium spaces 22a and 22b are adjacent to the terrace spaces 43 and 44 to enhance the feeling of openness. It is possible to prevent sunlight from entering through the windows 61 and 64.

The present invention is not limited to the above embodiment, and may be implemented as follows, for example.

(1) In the above embodiment, in the second floor portion 12, the overhanging unit 70K overhanging the atrium units 70A and 70B of the building unit group X1 only in the building unit group X2 among the building unit groups X2 and X3. Although (corresponding to the first overhanging unit) is provided, this may be changed so that the first overhanging unit is provided only in the building unit group X3. Further, the first overhanging unit may not be provided in both the building unit groups X2 and X3.

Further, in the above embodiment, in the second floor portion 12, of the building unit groups X2 and X3, only the building unit group X3 has an overhanging unit 70L (overhanging unit 70L) that overhangs the atrium units 70C and 70D of the building unit group X1. (Corresponding to the second overhanging unit) is provided, but this may be changed so that the second overhanging unit is provided only in the building unit group X2. Further, the second overhanging unit may not be provided in both the building unit groups X2 and X3. In these cases as well, in the second floor portion 12, the first overhanging unit and the second overhanging unit are not provided in one or both of the building unit groups X2 and X3, so that the feeling of openness can be enhanced. ..

In the second floor portion 12, the first overhanging unit and the second overhanging unit may be provided in each of the building unit groups X2 and X3, respectively.

(2) In the above embodiment, on the first floor portion 11, the overhanging units 70G and 70H (third) overhanging the atrium units 70A and 70B of the building unit group X1 on both of the building unit groups X2 and X3. Although one overhanging unit (corresponding to one overhanging unit) is provided, one or both of these overhanging units 70G and 70H may not be provided.

Further, in the above embodiment, on the first floor portion 11, the overhanging units 70I and 70J (second) overhanging the atrium units 70C and 70D of the building unit group X1 on both of the building unit groups X2 and X3. Although (corresponding to the overhanging unit) is provided, one or both of these overhanging units 70I and 70J may not be provided.

(3) In the above embodiment, the passage space 56 is formed as the upper floor intermediate space portion in the intermediate unit 70F of the second floor portion 12, but the upper floor intermediate space portion includes a stay space in which chairs, desks, etc. are placed. , A space other than the passage space 56 may be formed. Further, in that case, the length L1 of the intermediate units 70E and 70F in the housing depth direction X may be the same as or larger than the length L2 of the atrium units 70A to 70D in the same direction X.

(4) In the above embodiment, the waist wall portions 59a and 59b are provided as partition portions for partitioning the passage space 56 and the atrium spaces 22a and 22b, but this may be changed to provide a handrail portion as the partition portion. .. The handrail portion includes, for example, a plurality of handrail struts provided at predetermined intervals along the passage space 56, and handrail rods provided straddling the handrail struts. In this case as well, since the atrium spaces 22a and 22b and the passage space 56 are communicated with each other via the upper part of the handrail portion, the atrium spaces 22a and 22b are continuous via the passage space 56.

Further, the partition portion that separates the passage space 56 and the atrium spaces 22a and 22b does not necessarily have to be a waist wall portion or a handrail portion, and may be a partition wall. However, in that case, the atrium spaces 22a and 22b cannot be made continuous via the passage space 56, and in view of this point, it is considered desirable that the partition portion is a waist wall portion or a handrail portion.

(5) In the above embodiment, the atrium spaces 22a and 22b of the living / dining room 22 are adjacent to the terrace spaces 43 and 44 (outdoor open spaces) with the outer wall portions 36 and 37 separated from each other. One of the 22b atrium spaces 22a (22b) may be adjacent to the outdoor open space, and the other atrium space 22b (22a) may not be adjacent to the outdoor open space. Even in that case, it is possible to enhance the feeling of openness of the living / dining room 22.

(6) In the above embodiment, the living / dining room 22 is formed having two atrium spaces 22a and 22b, but the living / dining room 22 may be formed having only one atrium space. Even in that case, if the atrium space is adjacent to the terrace space with the outer wall portion separated, the feeling of openness of the living / dining room 22 can be enhanced.

(7) In the above embodiment, a part of the terrace spaces 43 and 44 is covered with the roof overhanging portions 14a and 14b from above, but at least one of the terrace spaces 43 and 44 is covered with the roof overhanging portions 14a and 14b. The whole may be covered with a roof overhang.

(8) In the above embodiment, the present invention is applied to a unit type house, but it may be applied to a house constructed by another construction method such as a steel frame construction method or a conventional wooden construction method.

10 ... Residential, 11 ... First floor as lower floor, 12 ... Second floor as upper floor, 14 ... Roof, 14a, 14b ... Roof overhang, 22 ... Living dining, 22a ... First atrium space , 22b ... Second atrium space, 22c ... Intermediate space as lower floor intermediate space, 43 ... Terrace space as first outdoor open space, 43a ... Deck as floor, 44 ... As second outdoor open space Terrace space, 44a ... Deck as floor, 36 ... Outer wall as first outer wall, 37 ... Outer wall as second outer wall, 56 ... Passage space as upper middle space, 58 ... Inter-floor 59a ... Waist wall as the first partition, 59b ... Waist wall as the second partition, 61 ... Window as the first window, 64 ... Window as the second window Part, 70 ... Building unit, 70A, 70B ... Atrium unit as the first atrium unit, 70C, 70D ... Atrium unit as the second atrium unit, 70E, 70F ... Intermediate unit, 70G, 70H ... As the first overhang unit Overhang unit, 70I, 70J ... Overhang unit as the second overhang unit, 70K ... Overhang unit as the first overhang unit, 70L ... Overhang unit as the second overhang unit, 71 ... Pillar, 72 ... Ceiling girder, 73 ... Floor girder, 75 ... Ceiling girder, 76 ... Floor girder, 78 ... Ceiling opening, 79 ... Floor opening, X1 ... Building unit group as first building unit group, X2, X3 … Building unit group as the second building unit group.

Claims (2)

A unit having a lower floor and an upper floor adjacent to each other and having a roof above the upper floor, and a plurality of building units having columns, ceiling girders and floor girders combined with each other. It ’s a type of house,
An atrium space formed indoors across the lower floor and the upper floor,
It is adjacent to the atrium space with an outer wall separated from it, and has an outdoor open space formed as an on-floor space with a floor.
The outdoor open space is formed so as to straddle the lower floor portion and the upper floor portion on the outdoor side of the outer wall portion, and at least a part of the roof portion overhangs the outer wall portion on the outdoor side. It is covered from above by the protrusion,
The outer wall portion is provided with a window portion that allows the outdoor open space to be seen from the atrium space.
The building unit includes a pair of atrium units that are stacked one above the other to form the atrium space.
Of the pair of atrium units, the lower floor atrium unit has a ceiling opening surrounded by the ceiling girder on the upper surface thereof, and the upper floor atrium unit has the lower surface portion thereof. A floor opening surrounded by floor girders is formed,
The atrium space is open to the upper and lower floors through the ceiling opening and the floor opening.
As the atrium space, a first atrium space and a second atrium space provided apart from each other are provided.
The building unit includes a pair of intermediate units that are vertically stacked between the first atrium space and the second atrium space.
Of the pair of intermediate units, the lower floor intermediate unit is provided with a plurality of ceiling beams bridged between the pair of ceiling girders facing each other on the upper surface thereof.
The intermediate unit on the upper floor is provided with a plurality of floor beams bridged between a pair of floor beams facing each other on the lower surface thereof.
The lower floor intermediate space portion formed in the intermediate unit of the lower floor portion and the upper floor intermediate space portion formed in the intermediate unit of the upper floor portion are the plurality of ceiling beams and the plurality of floors. It is divided into upper and lower parts by the floor including the beam.
The first atrium space and the second atrium space are continuous with each other through at least the lower intermediate space portion.
A first partition that separates both spaces is provided between the upper intermediate space and the first atrium space.
A second partition that separates both spaces is provided between the upper intermediate space and the second atrium space.
Both the first partition and the second partition are composed of a waist wall portion or a handrail portion.
When the direction in which the first stairwell space and the second stairwell space are lined up is defined as the stairwell line-up direction, the length of the stairwell line-up direction of the intermediate unit is approximately half the length of the stairwell unit in the stairwell line-up direction. It is said that
The upper floor intermediate space portion is a passage space extending in a direction orthogonal to the blowout arrangement direction.
As the outdoor open space, the first outdoor open space provided on the side opposite to each intermediate space portion across the first atrium space and the second atrium space across the atrium in the atrium arrangement direction. It is equipped with a second outdoor open space provided on the opposite side of the intermediate space.
The first outdoor open space is adjacent to the first atrium space across the first outer wall portion as the outer wall portion.
The first outer wall portion is provided with a first window portion as the window portion so that the first outdoor open space can be seen from the first atrium space.
The second outdoor open space is adjacent to the second atrium space across the second outer wall portion as the outer wall portion.
The second outer wall portion is provided with a second window portion as the window portion so that the second outdoor open space can be seen from the second atrium space.
The atrium unit includes a pair of upper and lower first atrium units forming the first atrium space and a pair of upper and lower second atrium units forming the second atrium space.
A plurality of building unit groups including a plurality of the building units provided side by side in the blowout direction on each of the lower floor portion and the upper floor portion are provided.
For the plurality of building units,
A first building unit group including the pair of first stairwell units, the pair of second stairwell units, and the pair of intermediate units, respectively.
A pair of second building unit groups provided on both sides of the first building unit group are included.
In the first building unit group, the pair of first stairwell units, the pair of second stairwell units, and the pair of intermediate units are arranged so that the short side direction in a plan view is directed to the stairwell arrangement direction.
Each of the second building unit groups has a first overhanging unit provided on the lower floor at least on the outdoor side of the first atrium unit, and an overhanging unit on the outdoor side of the second atrium unit. A house characterized by being provided with a second overhanging unit. In the upper floor, the first overhanging unit is provided in only one of the second building unit groups, or the first overhanging unit is not provided in both of them.
Similarly, in the upper floor, the second overhanging unit is provided in only one of the second building unit groups, or the second overhanging unit is not provided in both of them. The house according to claim 1, which is characteristic.

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