building
The building design addresses moisture and privacy issues by locating the dirt floor space on an upper floor, connected to an outdoor space, enhancing usability and privacy through integrated living and non-living spaces.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2026-03-06
AI Technical Summary
Conventional buildings with dirt floor spaces on the first floor face issues such as moisture accumulation, insect and animal invasion, and privacy concerns due to their proximity to outdoor spaces.
A building design with a dirt floor space located on an upper floor, connected to an outdoor space via a door, and integrated with a living space to enhance usability and privacy, featuring a non-living piloti space below and a balcony for access.
Ensures comfort and safety by minimizing moisture, insect intrusion, and maintaining privacy while allowing easy access to outdoor activities.
Smart Images

Figure 2026038475000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a building, and more particularly to a building having an earthen floor space inside the building. [Background technology]
[0002] In some buildings, such as houses, a dirt floor space is provided inside the building (see, for example, Patent Document 1). The dirt floor space of a building can be used for various purposes, such as maintaining materials brought in from outside (specifically, outdoor equipment such as tents) and cooking ingredients obtained by fishing, hunting, etc. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-101689 Summary of the Invention [Problem to be solved by the invention]
[0004] To efficiently perform the above-mentioned tasks, it is desirable to locate the dirt floor space within the building as close to the outdoor space as possible and in a location that is easily accessible from the outdoor space. Therefore, in conventional buildings, the dirt floor space is typically located on the first floor, as in the house shown in Patent Document 1. However, the dirt floor space is sometimes used for work involving water, and in such cases, the presence of a dirt floor space on the first floor makes it easier for moisture to accumulate on the first floor. Furthermore, when the dirt floor space is located on the first floor, insects and animals can easily invade the dirt floor space from the outside. Furthermore, people outside the building may be able to see the dirt floor space and adjacent spaces from the ground, which could violate the privacy of building users.
[0005] Therefore, the present invention has been made in consideration of the above-mentioned problems, and its purpose is to provide a building with an internal dirt floor space that ensures comfort (convenience) and safety. [Means for solving the problem]
[0006] The above problem is solved by a building of the present invention, which comprises a building main body having a floor located above the ground and supported by pillars erected between the ground and the floor, and a first space provided between the ground and the building main body and continuous with an outdoor space, wherein the building main body has, inside the building main body, a dirt floor space formed with a dirt floor that forms part of the floor, a door provided in a wall adjacent to the dirt floor space, and a second space located outside the wall that is continuous with the outdoor space and that is continuous with the dirt floor space when the door is open.
[0007] In the building of the present invention configured as described above, the dirt floor space within the main building portion and the second space connected to the outdoor space are adjacent to each other via a door, improving the usability of the dirt floor space. Furthermore, since the main building portion including the dirt floor space is located on an upper floor of the building, it is difficult for insects, animals, etc. to invade the dirt floor space. Furthermore, since it is possible to block views from outside the building (especially from people on the ground), the privacy of people inside the main building portion can be protected.
[0008] In addition, a preferred configuration of the building of the present invention is such that the interior of the main body of the building forms a living space including a dirt floor space and a living room adjacent to the dirt floor space, the first space is a piloti forming a non-living space, and the second space may be a balcony. According to the above configuration, the living space is concentrated inside the building main body, improving the convenience (ease of use) of the building.
[0009] Furthermore, as a more preferred configuration of the building of the present invention, no partition wall may be provided at the boundary between the dirt floor space and the living room inside the main body of the building, and the dirt floor space and the living room may be continuous. According to the above configuration, the earthen floor space and the living room are spatially integrated, allowing them to be used as one large space.
[0010] In addition, in the building of the present invention, the floor surface of the living room floor may be positioned higher than the floor surface of the earthen floor. According to the above configuration, by taking advantage of the step between the floor surface of the living room floor and the floor surface of the dirt floor, for example, a person inside the main body of the building can sit on the living room floor, straddling the step.
[0011] Furthermore, as a more preferred configuration of the building of the present invention, the dirt floor space and the living room form non-wet spaces inside the main body of the building, and the non-wet space may be located closer to the second space than the wet space. According to the above configuration, it is possible to enter (access) the non-wet space including the dirt floor space from the second space side which is continuous with the outdoor space.
[0012] Furthermore, as an even more suitable configuration of the building of the present invention, the kitchen facilities may be provided in the dirt floor space or a space adjacent to the dirt floor space inside the main body of the building. According to the above configuration, when cooking using the kitchen equipment, even if water or mud adhering to food gets scattered, the user can enjoy cooking without worrying about it.
[0013] The building of the present invention may further include an elevator facility that connects the first space and the second space and allows people to move up and down between the first space and the second space. According to the above configuration, it is possible to easily enter and exit the building main body from the first space via the second space.
[0014] In addition, as a more preferred configuration of the building of the present invention, the lifting facility may be a staircase, the wall may have a portion adjacent to the space where the staircase is placed, and the door may be provided in the portion of the wall adjacent to the space where the staircase is placed. According to the above configuration, when one climbs the stairs from the first space to the second space, one can immediately stand in front of the door, which shortens the distance one has to travel from the first space to the main building, further improving the usability of the building. [Effects of the Invention]
[0015] According to the present invention, it is possible to provide a building that has an earthen floor space within the building while ensuring comfort (convenience) and safety. [Brief explanation of the drawings]
[0016] [Figure 1] 1 is a diagram showing the exterior of a building according to one embodiment of the present invention. [Figure 2] 1 is a plan view showing the first floor of a building according to one embodiment of the present invention. [Figure 3] 1 is a plan view showing the second floor of a building according to one embodiment of the present invention. [Figure 4] FIG. 1 is a plan view of a loft provided on the second floor of a building according to one embodiment of the present invention. [Figure 5] This is a view of the interior of the second floor of a building according to one embodiment of the present invention, seen from the side opposite the balcony. [Figure 6] FIG. 1 is a view of the interior of the second floor of a building according to one embodiment of the present invention, seen from the balcony side. DETAILED DESCRIPTION OF THE INVENTION
[0017] The building of the present invention will be described below by taking one specific embodiment as an example. However, the embodiments described below are merely examples for facilitating understanding of the present invention and are not intended to limit the present invention. That is, the present invention may be modified or improved without departing from the spirit of the present invention. Furthermore, the present invention may include equivalents thereof.
[0018] In this specification, the meanings of "same," "identical," "equal," "even," "equally divided," and "equally spaced" may include the range of error generally accepted in the technical field to which this invention belongs. In addition, in this specification, the meanings of "vertical," "orthogonal," and "parallel" each include the range of error generally accepted in the field to which the present invention belongs, and may include cases where the deviation is less than a few degrees (e.g., 2 to 3 degrees) from the strict vertical, orthogonal, and parallel.
[0019] In addition, in this specification, two horizontal directions that are perpendicular to each other are defined as the X direction and the Y direction, and one side in the X direction will be called "+X" and the other side will be called "-X", and one side in the Y direction will be called "+Y" and the other side will be called "-Y".
[0020] The building of the present invention can be used for a variety of purposes, for example, as a residence, a leisure facility, an accommodation facility, a health resort facility, or a facility provided for other commercial purposes. Alternatively, the building of the present invention can be used as a public facility such as a meeting hall or a community center. In the following, a case where the building of the present invention is used as a residence will be described.
[0021] A house (hereinafter referred to as house 10), which is an example of a building of the present invention, is a two-story building having the exterior shown in FIG. 1, for example, with a pilotis 12 forming the first floor and a main house 14 forming the second floor. The interior of main house 14 forms the living space, and a large area of main house 14 is occupied by non-wet spaces including a dirt floor space, which will be described later. House 10 with this structure ensures continuity with outdoor spaces compared to a typical house (specifically, a single-story house), and is offered to target (customers) people who love the outdoors, for example. The number of floors that the house 10 has is not limited to two, and the house 10 may have three or more floors.
[0022] Furthermore, as described above, having a living space on the second floor of the house 10 (i.e., within the main house portion 14) improves sunlight, views, ventilation, and moisture resistance in the living space. Also, since it is difficult for the indoor space to be seen from outside the house 10, it becomes easier to protect the privacy of the residents of the house 10. Furthermore, since it becomes easier to block views from outside, the crime prevention of the house 10 is improved. Also, having a living space on the second floor of the house 10 makes the house 10 less susceptible to flood damage during heavy rain and the like compared to a single-story house such as a flat, and also makes it more difficult for insects (vermin) and animals (harmful animals) to invade the house 10.
[0023] The pilotis 12 corresponds to the first space, is provided between the ground G and the main body 14 of the house, and is continuous with the outdoor space. In this embodiment, the entire first floor of the house 10 is composed of the pilotis 12 and a staircase 18, which will be described later, as shown in FIG. 2. The pilotis 12 forms a non-living space, and specifically, as can be seen from FIGS. 1 and 2, it is used as a covered parking space. In other words, there is no living space on the first floor of the house 10. In other words, in the house 10 of this embodiment, the living space is concentrated on the second floor (one floor), and therefore the structure is more comfortable for the residents of the house 10 to live in than if the living space were divided between the first and second floors.
[0024] The height of pilotis 12 (i.e., the distance between ground G and main body 14 of the house) is not particularly limited, but may be about 3 m, for example, as long as it is high enough to use pilotis 12 as a parking space. Furthermore, the use of pilotis 12 is not particularly limited, and it may be used for purposes other than a parking space, for example, as a storeroom.
[0025] Furthermore, in this embodiment, the upper surface of the floor of the piloti 12 (hereinafter referred to as the piloti floor 22) is at approximately the same height as the ground G, in other words, the floor surface of the piloti floor 22 is continuous with the ground G. This allows vehicles traveling in the outdoor space to enter the piloti 12 from the ground G, and vehicles parked in the piloti 12 to move from the piloti 12 towards the outdoor space. In addition, there may be a slight step between the ground G and the floor surface of the piloti floor 22.
[0026] The house main body 14 corresponds to the building main body, has a floor (hereinafter referred to as the main body floor 28) located above the ground G, and is supported by external columns 20 erected between the ground and the main body floor 28. The external columns 20 are columns made of, for example, steel, and in this embodiment, multiple external columns 20 are erected at intervals along the X and Y directions as shown in Fig. 2. The installation locations and number of external columns 20 are not particularly limited, but it is preferable to arrange the number of external columns 20 required to support the house main body 14 in suitable positions, taking into consideration the access of people, vehicles, and the like to and from the pilotis 12.
[0027] The shape of the housing main body 14 when viewed from directly above is rectangular as shown in Fig. 3, and of the four sides forming the outer edge of the rectangle, one pair of opposing sides extend along the X direction, and the other pair of sides extend along the Y direction. However, the shape of the housing main body 14 when viewed from directly above is not particularly limited, and may be a circle, an ellipse, a polygon other than a rectangle, or a shape with internal corners and / or external corners.
[0028] As shown in Figures 1 and 3, the main body 14 of the house has a roof 24 that covers the interior of the main body 14 from above, and exterior walls 26a, 26b, and 26c that cover the interior of the main body 14 from the sides. The roof 24 may be a flat roof or a sloped roof. Also, part of the roof 24 may be a sloped roof, and the other part may be a flat roof. In this case, the part of the roof 24 located directly above the non-wet space within the main body 14 of the house may be a sloped roof; in other words, the non-wet space may have a sloped ceiling. The non-wet space is the space within the main body 14 other than the wet space (specifically, the toilet 34, washroom 36, and bathroom 38, which will be described later).
[0029] Exterior wall 26a is located at one end of the housing main body 14 in the X direction, more specifically the -X side end, and extends in the Y direction. Exterior wall 26b is located at one end of the housing main body 14 in the Y direction, more specifically the +Y side end, and extends in the X direction. Exterior wall 26c is located at the other end of the housing main body 14 in the Y direction, that is, the -Y side end, and extends in the X direction. Each of exterior walls 26a, 26b, and 26c has a window for lighting or ventilation.
[0030] 1 and 3, no exterior wall is provided at the +X side end of the main body 14 of the house, and instead a balcony 16, which will be described later, is provided at the +X side end of the main body 14 of the house. As a result, the +X side end of the interior of the main body 14 (i.e., the end on the balcony 16 side) is open and continuous with the outdoor space.
[0031] As mentioned above, the interior of the main body 14 of the house forms the living space, in other words, the rooms and spaces necessary for the residents of the house 10 to live are concentrated within the main body 14, which forms the second floor of the house 10. Specifically, as shown in Figure 3, the interior of the main body 14 of the house is provided with a dirt floor space 30 and a living room 32, which belong to non-wet spaces, and a toilet 34, a washroom 36, and a bathroom 38, which belong to wet spaces.
[0032] The non-wet space occupies most of the interior of the main body 14 of the house, with approximately half of it consisting of an earthen floor space 30 and the other half consisting of a living room 32. As shown in Figure 3, the earthen floor space 30 is a space formed with an earthen floor 42 that forms part of the main body floor 28, and is located on the +Y side of the non-wet space and extends in the X direction. The earthen floor 42 is constructed by pouring concrete for earthen floors.
[0033] The occupancy rate of the earthen floor space 30 in the non-wet space is not particularly limited, but is preferably 1 / 3 or more, and more preferably 1 / 2 or more.
[0034] In this embodiment, a wide area of the dirt floor space 30 is provided within the main body 14 of the house, allowing residents to enjoy an outdoor lifestyle on the second floor of the house 10, for example. Specifically, as shown in FIG. 6, a wood-burning stove can be installed and used on the dirt floor 42, and camping equipment can be maintained on the dirt floor 42. Part of the dirt floor 42 may be changed to a wooden floor or tatami floor in response to changes in the preferences and lifestyle of the residents of the house 10, or in conjunction with renovations (remodeling) of the house 10.
[0035] Furthermore, when cooking in the dirt floor space 30, even if the floor gets wet with the water used for cooking, cooking can be enjoyed without worrying because it is a dirt floor 42. Furthermore, in this embodiment, the dirt floor space 30 is provided on the second floor of the house 10, and since the second floor has better breathability, moisture resistance, and sunlight than the first floor, this configuration is suitable for cooking in the dirt floor space 30.
[0036] In this embodiment, as shown in FIG. 3, the earthen floor space 30 has a first region 30a located on the +X side and a second region 30b located on the -X side. The first region 30a and the second region 30b are each provided in the Y direction from the boundary with the living room 32 to the +Y side exterior wall 26b. The first region 30a extends further toward the +Y side than the second region 30b. Therefore, as shown in FIG. 3, the shape of the earthen floor 42 when viewed from directly above is substantially L-shaped. The space between the first region 30a and the +Y side exterior wall 26b is used to provide a staircase 18, which will be described later.
[0037] 3, kitchen equipment 46 is arranged at the +Y side end of the second region 30b of the dirt floor space 30. More specifically, the kitchen equipment 46 is arranged along the +Y side exterior wall 26b of the dirt floor space 30. By arranging the kitchen equipment 46 within the dirt floor space 30 in this way, when cooking fish, vegetables with mud on them, or the like, you can enjoy cooking without worrying about water or mud splashing around the kitchen equipment 46. Note that the kitchen equipment 46 does not have to be arranged within the dirt floor space 30, and may also be provided in a space adjacent to the dirt floor space 30 (for example, the living room 32).
[0038] As shown in Figure 3, the living room 32 is located on the -Y side of the non-wet space, adjacent to the earthen floor space 30 in the Y direction, and extends along the X direction. In this embodiment, no partition wall is provided at the boundary between the earthen floor space 30 and the living room 32 inside the main body 14 of the house, and the earthen floor space 30 and the living room 32 are spatially continuous. In other words, the non-wet space within the main body 14 of the house exists as one large space without being divided by walls, fixtures, etc. This creates a sense of openness within the main body 14 of the house.
[0039] 3, the floor of the living room 32 (hereinafter referred to as living room floor 44) forms part of the main body floor 28, more specifically the part adjacent to the earthen floor 42 on the -Y side, and is made of, for example, flooring. As is clear from FIG. 6, the floor surface of the living room floor 44 is located at a higher position than the floor surface of the earthen floor 42. In other words, a step is formed at the boundary between the floor surfaces of the living room floor 44 and the earthen floor 42, and, for example, a resident of the house 10 (shown by a dashed line in FIG. 6) can sit on the living room floor 44 by straddling this step. In this embodiment, the shape of the living room floor 44 when viewed from directly above is a rectangle with its longer side in the X direction, as shown in FIG.
[0040] As shown in Figure 3, the wet space is located on the -X side of the non-wet space within the main body 14 of the house, and is adjacent to the non-wet space across a partition wall. In other words, the non-wet space is located on the +X side of the wet space (i.e., closer to the balcony 16, which will be described later).
[0041] 3, the toilet 34, the washroom 36, and the bathroom 38 included in the wet space are arranged in a line along the Y direction. The toilet 34, the washroom 36, and the bathroom 38 are also arranged at the same position in the X direction. In this way, the rooms belonging to the wet space are arranged together at the -X side end of the main body 14 of the house, which further simplifies the routing of water and sewerage piping within the main body 14 of the house. Furthermore, if the kitchen equipment 46 is arranged as close as possible to the wet space, the routing of water and sewerage piping can be further simplified. In this specification, the space in which the kitchen equipment 46 is installed is not included in the wet area.
[0042] In this embodiment, the washroom 36 and the bathroom 38 are the same size; more specifically, the lengths in the X and Y directions are set to be the same between the washroom 36 and the bathroom 38. The toilet 34 is approximately half the size of each of the washroom 36 and the bathroom 38 in the X direction; more specifically, the length (width) of the toilet 34 in the X direction is 1 / 2 the length (width) of each of the washroom 36 and the bathroom 38 in the X direction. In this embodiment, as shown in FIG. 3 , a storage room 40 is located adjacent to the toilet 34 on the +X side of the toilet 34. The storage room 40 is the same size as the toilet 34, and the toilet 34 and the storage room 40 are separated from each other by a wall.
[0043] Ceilings (small roofs) are installed over the toilet 34, washroom 36, bathroom 38, and storage room 40, and a space (small roof space) is formed above them. As shown in Fig. 3, in this embodiment, this small roof space is used as a loft 48. The loft 48 is a square space, for example, as shown in Fig. 4, and is located in a position that straddles the wet space and the non-wet space in the X direction. In other words, the +X side end of the loft 48 is located directly above the dirt floor space 30 and the living room 32. The loft 48 can be accessed freely via a loft staircase 50 that connects the loft 48 to the living room 32. The loft 48 does not necessarily have to be provided.
[0044] 1 and 3, a balcony 16 is provided at the +X side end of the housing main body 14. The balcony 16 corresponds to the second space and is continuous with the outdoor space. The balcony 16 is provided long in the Y direction, and in this embodiment, it is provided from the +Y side outer wall 26b to the -Y side outer wall 26c. That is, as shown in FIG. 3, the balcony 16 has approximately the same width (length in the X direction) as the interior of the housing main body 14. As shown in FIG. 1, a fall prevention fence 52 is provided at the outdoor end of the balcony 16.
[0045] 3 and 5, a separation wall 54 is provided at the boundary between the balcony 16 and the interior of the main body 14 of the house (more specifically, the non-wet space), separating the balcony 16 from the interior of the main body 14 of the house. The separation wall 54 is a wall extending along the Y direction, and its +X side wall surface is adjacent to the balcony 16, and its -Y side wall surface is adjacent to the dirt floor space 30 and the living room 32. In other words, the balcony 16 is located outside (on the outdoor side) of the separation wall 54, and the dirt floor space 30 and the living room 32 are located inside (on the indoor side) of the separation wall 54.
[0046] The separating wall 54 may be provided with windows for lighting and ventilation. Also, most of the separating wall 54 (excluding the door 56) may be made of tempered glass. In this case, the continuity between the non-wet space and the balcony 16 is enhanced, further enhancing the sense of openness within the main body 14 of the house. On the other hand, as mentioned above, since the main body 14 of the house is on the second floor, it is possible to block views from outside the house 10 at ground level, thereby appropriately protecting the privacy of the residents of the house 10.
[0047] 3 and 5, a door 56 that can be opened and closed is provided in the portion of the separating wall 54 adjacent to the earthen floor space 30. This door 56 serves as an entrance to the interior of the main body 14 of the house, and when the door 56 is open, the balcony 16 and the earthen floor space 30 are connected to each other. In other words, in this embodiment, the balcony 16 functions as an entrance space for the house 10. In this way, because the balcony 16 and the earthen floor space 30 are connected to each other via the door 56, the balcony 16 and the interior of the main body 14 of the house can be used as a semi-outdoor space. The type and structure of the door 56 are not particularly limited, and may be a sliding door, a hinged door, or a folding door.
[0048] 1 to 3, the house 10 further has a staircase 18 connecting the pilotis 12 and the balcony 16. The staircase 18 is an example of an elevator facility for ascending and descending between the pilotis 12 and the balcony 16, and in this embodiment is a straight staircase extending straight in the X direction. However, the type of staircase 18 is not limited to a straight staircase, and may be any of a return staircase, a hinged staircase, or a spiral staircase.
[0049] The entrance to the stairs 18 is located on the floor of the piloti 12 (piloti floor 22), and the exit to the stairs 18 is located on the main body floor 28, specifically the floor of the balcony 16. In other words, a resident of the house 10 can climb the stairs 18 from the piloti 12 to the balcony 16 and then open the door 56 to enter the dirt floor space 30 within the main body 14 of the house. This allows, for example, a resident to transport luggage by vehicle, park the vehicle on the piloti 12, remove the luggage from the vehicle, and carry it into the main body 14 of the house via the piloti 12, the stairs 18, and the balcony 16. Conversely, luggage taken out of the main body 14 of the house can be carried to the vehicle parked on the piloti 12. As a result, even in rainy weather, luggage can be carried in and out without getting wet.
[0050] In this embodiment, as described above, the staircase 18 is disposed in the space between the +Y-side exterior wall 26b and the earthen floor space 30 (more specifically, the first region 30a). In other words, an installation space for the staircase 18 is provided between the +Y-side exterior wall 26b and the earthen floor space 30. In this embodiment, as shown in FIG. 3 , the upper end (more specifically, the entrance) of the staircase 18 is disposed adjacent to the door 56 in the Y direction. In other words, the separation wall 54 has a portion adjacent to the installation space for the staircase 18, and the door 56 is provided in this portion. This allows the resident of the house 10 to stand in front of the door 56 immediately after climbing the staircase 18 when entering the house main body 14 from the outdoor space, thereby enabling a smooth entry into the house main body 14.
[0051] As described above, the house 10 according to this embodiment is a building having an earthen floor space 30 inside, and therefore, comfort (convenience) and safety are ensured. [Explanation of symbols]
[0052] 10. Housing (Building) 12 Piloti (1st space) 14 Housing body (building body) 16 Balcony (Second Space) 18 stairs 20 Exterior columns (pillars) 22 Piloti floor 24 Roof 26a, 26b, 26c exterior walls 28 Main body floor 30 Earthen floor space 30a 1st area 30b 2nd area 32 Living Room 34 Toilet 36 Washroom 38 Bathroom 40 storage 42 Earthen floor 44 Living room floor 46 Kitchen facilities 48 Loft 50 Loft Stairs 52 Fall prevention fence 54 Separation wall (wall) 56 Door G ground
Claims
1. a building body having a floor located above the ground and supported by columns erected between the ground and the floor; a first space provided between the ground and the building main body and continuous with an outdoor space; The building main body includes: An earthen floor space formed inside the building main body and having an earthen floor that forms part of the floor; A door provided in a wall adjacent to the earthen floor space; The building has a second space that is arranged outside the wall and is continuous with an outdoor space, and that is continuous with the earthen floor space when the door is open.
2. The interior of the building main body forms a living space including the earthen floor space and a living room adjacent to the earthen floor space, The first space is a piloti that forms a non-living space, The building of claim 1 , wherein the second space is a balcony.
3. The building according to claim 2, wherein no partition wall is provided at the boundary between the dirt floor space and the living room inside the main building portion, and the dirt floor space and the living room are continuous.
4. The building according to claim 2, wherein the floor surface of the living room is located at a higher position than the floor surface of the earthen floor.
5. The building described in claim 2, wherein the earthen floor space and the living room form non-wet spaces inside the main building portion, and the non-wet space is located closer to the second space than the wet space.
6. The building according to claim 1, wherein a kitchen facility is provided in the earthen floor space or a space adjacent to the earthen floor space inside the building main body.
7. The building according to claim 1 , further comprising an elevator facility communicating between the first space and the second space and for ascending and descending between the first space and the second space.
8. the lifting facility is a staircase, The wall has a portion adjacent to the arrangement space of the staircase, The building according to claim 7, wherein the door is provided in a portion of the wall adjacent to a space in which the staircase is arranged.
Citation Information
Patent Citations
House
JP2014101689A