JP2017082560A - building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building having a ceiling structure for reducing restriction in a size and a height, capable of heightening a ceiling height while securing sound insulation performance, and enhancing an aesthetic appearance.SOLUTION: A building 1 having a plurality of stories comprises a first slab part 6a for constituting at least a part of a floor slab 6 for separating the upper floor and the lower floor and having an undersurface of becoming a first ceiling surface 2a1 of the lower floor, a second slab part 6b having the substantially same thickness as the first slab part 6a, deviatively arranged on the upper floor side or the lower floor side to the first slab part 6a and having an undersurface of becoming a second ceiling surface 2a2 of the lower floor having a step difference to the first ceiling surface 2a1 and a plate-like overhang part 10 for overhanging toward the side from the ceiling surface along the ceiling surface of becoming the lower side among the first ceiling surface 2a1 and the second ceiling surface 2a2 and superposably arranged at an interval on the ceiling surface of becoming the upper side among the first ceiling surface 2a1 and the second ceiling surface 2a2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a building such as a house, and more particularly to a building having a plurality of layers separated from each other by a floor slab.

  Conventionally, as a building having a plurality of floors separated from each other by a floor slab, such as a two-story house or a three-story house, the ceiling of a living room such as a living room provided on the lower floor is folded up (two It is known to have a heavy ceiling).

  The folded ceiling is constructed by folding a part of the ceiling surface into a ceiling space in a stepped shape. By providing such a folded ceiling, the ceiling height of the living room, that is, the height from the floor surface to the ceiling surface can be increased to make the living room feel wide (see, for example, Patent Document 1).

JP 2004-011154 A

  However, the raised ceiling is constructed by folding a part of the ceiling surface toward the ceiling space of the ceiling, so in the area where the beam that supports the upper floor is provided inside the pocket space There were many restrictions on the installation area and height, such as the fact that the ceiling could not be provided and the ceiling height could be increased only within the range of the ceiling space. In addition, if the ceiling is configured as a folded ceiling, the size between the upper floor and the lower floor is reduced, making it difficult to ensure sound insulation between the upper and lower floors. There was also the problem of becoming.

  An object of the present invention is to solve such a point, and the object of the present invention is to reduce the size and height restrictions, and to increase the ceiling height while ensuring sound insulation, and to be aesthetically pleasing. The object is to provide a building having an enhanced ceiling structure.

  The building of the present invention is a building having a plurality of floors, which constitutes at least a part of a floor slab that separates the upper floor and the lower floor, and the lower surface is a first ceiling surface of the lower floor, The lower surface has substantially the same thickness as the first slab portion, and is shifted to the upper floor side or the lower floor side with respect to the first slab portion, and the lower surface has a step with respect to the first ceiling surface. The second slab part which becomes the second ceiling surface of the floor, and the first ceiling surface and the ceiling surface which is the lower side of the second ceiling surface, project from the ceiling surface toward the side, and the first It has a plate-shaped overhang | projection part arrange | positioned at intervals on the ceiling surface which becomes an upper side among a ceiling surface and said 2nd ceiling surface, It is characterized by the above-mentioned.

  The building of this invention WHEREIN: It is preferable that the lighting fixture is arrange | positioned between the ceiling surface which becomes an upper side among the said 1st ceiling surface and the said 2nd ceiling surface, and the said overhang | projection part.

  In the building of the present invention, in the above configuration, it is preferable that white wallpaper is pasted on the upper ceiling surface of the first ceiling surface and the second ceiling surface.

  The building of this invention WHEREIN: It is preferable that the wallpaper by which the roughening process was given to the surface is stuck on the ceiling surface which becomes an upper side among the said 1st ceiling surface and the said 2nd ceiling surface.

  The building according to the present invention has the above-described configuration, wherein a kitchen is provided on the upper floor and the lower floor with the floor slab sandwiched on the side opposite to the side where the second slab section is shifted with respect to the first slab section. It is preferable.

  According to the present invention, the ceiling height of the desired floor is increased by shifting a part of the area where the thickness of the floor slab is constant to the upper floor side or the lower floor side while keeping the thickness constant. The height of the ceiling can be increased while reducing the size and height restrictions on the area where the noise can be increased and ensuring sound insulation. In addition, by projecting a part of the floor slab to the upper floor side or the lower floor side and projecting along the ceiling surface on the lower side of the step, the upper ceiling surface is projected to the step portion generated on the lower floor ceiling part. Since the overhanging portion is provided so as to be overlapped and spaced apart from each other, the overhanging portion can enhance the continuity of the indoor space in the stepped portion and enhance the aesthetic appearance of the ceiling portion of the hierarchy.

  As described above, according to the present invention, it is possible to provide a building having a ceiling structure in which there are few restrictions on the size and height, the ceiling height can be increased while ensuring sound insulation, and the aesthetic appearance is enhanced. it can.

It is a figure which shows typically the building which is one embodiment of this invention. It is a figure which expands and shows the level | step-difference part of the ceiling of the building shown in FIG. It is a figure which shows typically an example of arrangement | positioning of the lighting fixture to an overhang | projection part. It is a figure which shows the modification of arrangement | positioning of the lighting fixture to the overhang | projection part shown in FIG. It is a figure which shows the modification of the overhang | projection part shown in FIG. It is a figure which shows an example of the house to which this invention was applied, Comprising: (a) is a floor plan of the 2nd floor part, (b) is a floor plan of the 3rd floor part. It is a figure which shows the other example of the house to which this invention was applied, Comprising: (a) is a floor plan of the 1st floor part, (b) is a floor plan of the 2nd floor part. It is a figure which shows the further another example of the house to which this invention was applied, Comprising: (a) is a floor plan of the 1st floor part, (b) is a floor plan of the 2nd floor part.

  Hereinafter, the present invention will be described in more detail with reference to the drawings.

  A building 1 according to an embodiment of the present invention shown in FIG. 1 is a three-story industrialized house having a steel frame, and has three levels: a first floor part 2, a second floor part 3, and a third floor part 4. have. The first floor part 2 and the second floor part 3 are separated by a floor slab 5, and the second floor part 3 and the third floor part 4 are separated by a floor slab 6. The floor slab 5 has a floor structure that supports the load on the floor of the second floor portion 3 of the building 1, and the floor slab 6 has a floor structure that supports the load on the floor of the third floor portion 4 of the building 1.

  Although details are not shown, the first floor part 2 of this building 1 is provided with a front door, a storage room, a bathroom, and the second floor part 3 has a living room (living room), a dining room (dining room), a kitchen (kitchen), and the like. The third floor portion 4 is provided with a living room such as a bedroom. Further, the second floor portion 3 is provided with a blowout 7 that reaches the ceiling surface 4a of the third floor portion 4 by cutting out a part of the floor slab 6.

  In this building 1, a part of the floor slab 6 separating the second floor part 3 and the third floor part 4 is shifted to the upper floor side with respect to the other parts, and the ceiling height of the second floor part 3, that is, from the floor surface 3 b to the ceiling surface 3 a. I try to partially increase the height. By raising the ceiling height of the second floor part 3 in a region where a living room such as a living room is provided, for example, it is possible to give the living room a feeling of opening, thereby making the living room feel wider and enhancing its comfort. .

  More specifically, the floor slab 6 is supported by the frame of the building 1 at a reference height and constitutes a part of the floor slab 6, and the first slab part 6 a And a second slab portion 6b arranged at a predetermined height on the upper floor side, that is, the third floor portion 4 side.

  The 2nd slab part 6b can be provided in the area | region matched with the grid of the steel frame frame of the building 1 of the floor slab 6, for example. With such a configuration, the second slab portion 6b can be reliably supported on the housing with a simple configuration. Further, in this case, another beam can be placed over the beam supporting the first slab portion 6a, and the second slab portion 6b can be supported by the beam overlaid on the upper side. With such a configuration, the second slab portion 6b can be reliably supported on the housing on the upper floor side than the first slab portion 6a with a simple configuration.

  The amount of shift (shift amount) to the upper floor side of the second slab part 6b with respect to the first slab part 6a can be set to about 30 cm, for example.

  The first slab portion 6a and the second slab portion 6b are provided in a region where the thickness of the floor slab 6 (the thickness from the ceiling surface 3a of the second floor portion 3 to the floor surface 4b of the third floor portion 4) is substantially constant. The thickness of the second slab portion 6b is substantially the same as the thickness of the first slab portion 6a.

  In the case shown in the figure, the floor slab 6 has a constant thickness in the entire area, but the floor slab 6 has a structure having a different thickness in addition to the constant thickness area. You can also In this case, both the first slab portion 6a and the second slab portion 6b are provided in a region where the thickness of the floor slab 6 is constant.

  Thus, in the building 1 of the present invention, the second slab portion 6b having substantially the same thickness as that of the first slab portion 6a with respect to the first slab portion 6a constituting a part of the region where the thickness of the floor slab 6 is constant. Is shifted to the upper floor side with respect to the first slab portion 6a, so that the restriction on the size and height of the area where the ceiling height can be increased is reduced, and the second floor portion 3 is reduced without reducing the thickness of the floor slab 6. The ceiling height can be partially increased. Thereby, the thickness of the floor slab 6 is ensured to a predetermined thickness, and the sound insulation by the floor slab 6 between the second floor portion 3 and the third floor portion 4 is secured, and the ceiling height of a desired region of the second floor portion 3 is partially increased. Can be expensive.

  The second slab portion 6b is disposed at a predetermined height on the third floor portion 4 side with respect to the first slab portion 6a, so that the floor surface 4b of the third floor portion 4 has the first slab portion 6a. The first floor surface 4b1 formed by the upper surface and the second floor surface 4b2 formed by the upper surface of the second slab portion 6b are provided. The second floor surface 4b2 is displaced upward with respect to the first floor surface 4b1 and has a step with respect to the first floor surface 4b1, while the ceiling height of the third floor portion 4 is constant. The area of the third floor portion 4 corresponding to the second floor surface 4b2 has a lower ceiling height than the area corresponding to the first floor surface 4b1. Therefore, it is preferable that the second floor surface 4b2 is provided in an area that does not require much ceiling height, such as a bedroom or a storage room.

  In this building 1, the kitchen is provided in the second floor portion 3 where the ceiling height is raised by shifting the second slab portion 6b with respect to the first slab portion 6a as described above. By setting it as such a structure, the ceiling height of living rooms, such as a living room and a dining room provided in the second-floor part 3 with a kitchen can be raised, and the comfort of the said living room can be improved.

  When the ceiling height of the second floor portion 3 is increased by the above configuration, the ceiling surface 3a of the second floor portion 3 is formed by the first ceiling surface 3a1 formed by the lower surface of the first slab portion 6a and the lower surface of the second slab portion 6b. The formed second ceiling surface 3a2 is provided. The second ceiling surface 3a2 is shifted upward with respect to the first ceiling surface 3a1 and has a step with respect to the first ceiling surface 3a1, and the space between the first ceiling surface 3a1 and the second ceiling surface 3a2 is They are connected to each other by a connecting surface 3a3 perpendicular to these surfaces. In this way, by shifting the second slab portion 6b to the upper floor side with respect to the first slab portion 6a to increase the ceiling height, the ceiling surface 3a of the second floor portion 3 has the first ceiling surface 3a1 and the first ceiling. The level | step difference which consists of the 2nd ceiling surface 3a2 higher than the surface 3a1 will arise.

  As described above, if the ceiling surface 3a of the second-floor portion 3 has a shape with a simple shape in which the first ceiling surface 3a1 and the second ceiling surface 3a2 are connected by the connection surface 3a3, this step makes the space A discontinuity will occur and the aesthetics of the ceiling will be impaired. Therefore, in the building 1 of the present invention, the side of the first ceiling surface 3a1 which is the lower side of the first ceiling surface 3a1 and the second ceiling surface 3a2 is directed sideways along the first ceiling surface 3a1. An overhanging portion 10 is provided to enhance the beauty of the ceiling.

  As shown in FIGS. 2 and 3, the overhanging portion 10 is formed in a long plate shape extending along the outer peripheral edge of the first ceiling surface 3a1, and the lower surface 10a forms the same surface as the first ceiling surface 3a1. Are arranged in parallel to the first ceiling surface 3a1 and the second ceiling surface 3a2, and are fixed to the side portions of the first slab portion 6a at the side portions thereof. Further, the thickness of the overhanging portion 10 is smaller than the level difference (height difference) between the first ceiling surface 3a1 and the second ceiling surface 3a2, so that the overhanging portion 10 is spaced from the second ceiling surface 3a2. Are arranged in layers with a gap between them.

  Thus, in the building 1 of the present invention, the overhanging portion 10 is provided at the step portion between the first ceiling surface 3a1 and the second ceiling surface 3a2, so that compared to a case where a simple step is provided on the ceiling surface 3a. Thus, the continuity of the space in the step portion can be increased, and the beauty of the ceiling can be enhanced.

  The overhanging portion 10 is preferably provided along all outer peripheral edges that cause a step with respect to the second slab portion 6b of the first slab portion 6a. For example, when the first slab portion 6a has a step on two sides with respect to the second slab portion 6b, the overhanging portion 10 has an L-shape extending along each side portion as shown in FIG. Preferably it is formed. In addition, when the first slab part 6a has a step on three sides with respect to the second slab part 6b, the overhanging part 10 is preferably formed in a U-shape extending along each side part, Further, when the first slab portion 6a surrounds the second slab portion 6b in a rectangular shape, the projecting portion 10 is preferably formed in a rectangular ring shape extending along each side portion. Thus, by providing the overhang | projection part 10 along all the outer periphery which produces a level | step difference with respect to the 2nd slab part 6b of the 1st slab part 6a, it is between 1st ceiling surface 3a1 and 2nd ceiling surface 3a2. The continuity of the space can be enhanced for all the step portions generated in the above, and the aesthetic appearance of the ceiling of the second floor portion 3 can be further enhanced. In these cases, the overhanging portion 10 may have a configuration in which all portions corresponding to each side are integrally formed, or may be a configuration in which different plate bodies are combined as illustrated.

  The overhang portion 10 can be configured, for example, by attaching a gypsum board or the like to the surface of a plate-like base material. In this case, the overhanging portion 10 is integrated with the first slab portion 6a by extending the underlaying material or gypsum board constituting the first slab portion 6a and integrally forming the underlaying material or gypsum board constituting the overhanging portion 10. It can also be formed. Thereby, the overhang | projection part 10 can be easily formed with the 1st slab part 6a.

  The thickness of the overhang portion 10 can be set to, for example, about 12.5 cm. By setting the overhanging portion 10 to such a thickness, a desired strength can be ensured while maintaining an appropriate distance from the second ceiling surface 3a2.

  For example, in the building 1 of the present invention, one floor slab 5 that separates the first floor portion 2 and the second floor portion 3 is shown in FIG. By shifting the part to the lower floor side with respect to the other part, the floor surface 3b of the second floor part 3 can be partially lowered to increase the ceiling height in the area. With such a configuration, even when the ceiling height of the second-floor portion 3 is increased, the living room provided in the second-floor portion 3 is the same as the case where a part of the floor slab 6 is shifted toward the upper floor as described above. A feeling of opening can be given to a room such as a room to make the room feel wide.

  More specifically, the floor slab 5 is supported by the frame of the building 1 at a reference height and constitutes a part of the floor slab 5, and the first slab portion 5a. The second slab portion 5b is disposed on the lower floor side, that is, on the first floor portion 2 side, shifted (lowered) by a predetermined height.

  Similarly to the second slab portion 6b described above, the second slab portion 5b can also be provided in a region that matches the grid of the steel frame of the building 1 of the floor slab 5. With such a configuration, the second slab portion 5b can be reliably supported on the housing with an easy configuration.

  The shift amount (shift amount) of the second slab portion 5b toward the lower floor with respect to the first slab portion 5a can be set to about 30 cm, for example.

  The first slab portion 5a and the second slab portion 5b are provided in a region where the thickness of the floor slab 5 (the thickness from the ceiling surface 2a of the first floor portion 2 to the floor surface 3b of the second floor portion 3) is substantially constant. The thickness of the second slab portion 5b is substantially the same as the thickness of the first slab portion 5a.

  With such a configuration, the second floor surface 3b2 formed by the upper surface of the second slab portion 5b is shifted downward with respect to the first floor surface 3b1 formed by the upper surface of the first slab portion 5a. In this manner, the ceiling height of the second floor portion 3 can be increased without reducing the thickness of the floor slab 5 in the region of the second floor surface 3b2. That is, the ceiling height of the second floor portion 3 can be increased while securing the thickness of the floor slab 5 and ensuring the sound insulation by the floor slab 5 between the first floor portion 2 and the second floor portion 3. Even in this case, both the first slab portion 5a and the second slab portion 5b are provided in a region where the thickness of the floor slab 5 is constant.

  In addition, the 2nd slab part 5b of the floor slab 5 is arrange | positioned by the predetermined height to the 1st floor part 2 side with respect to the 1st slab part 5a, and the floor surface 2b of the 1st floor part 2 is fixed height. Therefore, the area of the first floor portion 2 where the second ceiling surface 2a2 is provided has a lower ceiling height than the area where the first ceiling surface 2a1 is provided. Therefore, it is preferable that the second ceiling surface 2a2 is provided in an area that does not require much ceiling height, such as a storage room.

  When the second slab part 5b is shifted to the lower floor side with respect to the first slab part 5a to increase the ceiling height of the second floor part 3, the ceiling surface 2a of the first floor part 2 has the first slab part 5a. A first ceiling surface 2a1 formed by the lower surface and a second ceiling surface 2a2 formed by the lower surface of the second slab portion 5b are provided. The second ceiling surface 2a2 is shifted downward with respect to the first ceiling surface 2a1, and has a step with respect to the first ceiling surface 2a1, and the gap between the first ceiling surface 2a1 and the second ceiling surface 2a2 is They are connected to each other by a connecting surface 2a3 perpendicular to these surfaces. In this way, the ceiling surface 2a of the first floor portion 2 has a step formed by the first ceiling surface 2a1 and the second ceiling surface 2a2 lower than the first ceiling surface 2a1, but in this case as well, By providing an overhanging portion 10 projecting sideways along the second ceiling surface 2a2 on the side portion of the second ceiling surface 2a2 which is the lower side of the first ceiling surface 2a1 and the second ceiling surface 2a2. , Can enhance the beauty of the ceiling.

  The configuration of the overhanging portion 10 provided on the side of the second ceiling surface 2a2 of the first floor portion 2 is basically the same as the configuration of the overhanging portion 10 provided on the side of the first ceiling surface 3a1 of the second floor portion 3 described above. Therefore, detailed description of the configuration is omitted.

  As shown in FIG. 2, the lighting fixture 20 can be disposed between the overhanging portion 10 and the second ceiling surface 3 a 2 that overlaps the overhanging portion 10 with a space therebetween. Examples of the lighting fixture 20 include various types such as an LED lamp using a light emitting diode, a fluorescent lamp, a discharge gas lamp such as a neon tube, an incandescent lamp, and various shapes such as a rod shape, a spherical shape, and a plate shape. Can be used. Thus, by arranging the lighting fixture 20 between the overhanging portion 10 and the second ceiling surface 3a2, the lighting device 20 illuminates the second ceiling surface 3a2 and the shadow of the overhanging portion 10 is reflected on the second ceiling surface 3a2. The ceiling of the second-floor portion 3 is produced by causing the space between the projecting portion 10 and the second ceiling surface 3a2 to expand by the light emitted from the lighting fixture 20 toward the second ceiling surface 3a2. The beauty of can be further enhanced.

  A plurality of lighting fixtures 20 may be arranged side by side along the longitudinal direction of the overhanging portion 10 between the overhanging portion 10 and the second ceiling surface 3a2. In this case, the beauty of the ceiling can be further enhanced by allowing light to strike a wider range of the second ceiling surface 3a2.

  Moreover, as the lighting fixture 20, for example, a rod-shaped LED lamp or a rod-shaped fluorescent lamp in which a plurality of light-emitting diodes (LED light sources) are arranged in a straight line to form a single unit, the light-emitting portion has a linear shape with a predetermined length. Can be used. In this case, the lighting fixture 20 is arranged with its longitudinal direction directed in a direction along the longitudinal direction of the overhanging portion 10. By using such a rod-shaped lighting fixture 20, a wider range of the second ceiling surface 3a2 can be efficiently illuminated with a small number of lighting fixtures 20.

  In addition, the lighting fixture 20 functions also as indirect illumination which illuminates indoor space with the light reflected by the 2nd ceiling surface 3a2.

  As shown in FIG. 2, the lighting fixture 20 can be configured to be attached to the upper surface of the overhang portion 10. With this configuration, the lighting fixture 20 can be placed on the overhanging portion 10 when the lighting fixture 20 is attached to the upper surface of the overhanging portion 10. Installation work can be facilitated.

  The lighting fixture 20 is not limited to the upper surface of the overhanging portion 10 and may be configured to be attached to the connecting surface 3a3 or the second ceiling surface 3a2 as long as it is arranged between the overhanging portion 10 and the second ceiling surface 3a2. . In these cases, the wiring of the lighting fixture 20 can be easily pulled into the floor slab 6, and the installation work of the lighting fixture 20 can be facilitated.

  When a plurality of rod-shaped lighting fixtures 20 are arranged between the overhanging portion 10 and the second ceiling surface 3a2, as shown in FIG. It is parallel to the one lighting fixture 20 and spaced laterally with respect to the one lighting fixture 20, and is shifted in the longitudinal direction so that the light emitting portions overlap each other within a predetermined range. It can be set as the arrangement. When three or more rod-shaped lighting fixtures 20 are arranged in the overhanging portion 10, these lighting fixtures 20 are divided into two rows, and the lighting fixtures are alternately arranged in the longitudinal direction in one row and the other row. 20 is preferably arranged. By adopting such an arrangement, even when a plurality of rod-shaped lighting fixtures 20 are arranged along the longitudinal direction of the overhanging portion 10, a portion where no light is irradiated between adjacent lighting fixtures 20 is generated. And the second ceiling surface 3a2 can be illuminated uniformly.

  In the above-described configuration, it is preferable to use a plurality of rod-shaped lighting fixtures 20 having the same length and the same shape. Thereby, the lighting fixture 20 can be arrange | positioned equally in each site | part of the overhang | projection part 10, and the 2nd ceiling surface 3a2 can be illuminated uniformly by these several lighting fixtures 20. FIG.

Further, when three or more rod-shaped lighting fixtures 20 are arranged in the overhanging portion 10, the length of the light emitting portion of each lighting fixture 20 overlaps with the light emitting portion of the other lighting fixture 20 on one end side in the longitudinal direction. Moreover, it is preferable to set the length which overlaps with the light emission part of the other lighting fixture 20 to the same length in the other end side of a longitudinal direction. Thereby, the light quantity in the part in which the light emission part of each lighting fixture 20 overlaps can be equalize | homogenized, and the 2nd ceiling surface 3a2 can be illuminated more uniformly by these several lighting fixtures 20. FIG.

  When the end in the longitudinal direction of the rod-shaped lighting fixture 20 disposed in the overhanging portion 10 is disposed, for example, facing the connecting surface 3a3 or another wall in the room, the longitudinal direction of the lighting fixture 20 is It is preferable to arrange the end portion adjacent to the wall such as the connecting surface 3a3. For example, the distance between the end in the longitudinal direction of the lighting fixture 20 and the wall such as the connecting surface 3a3 is preferably 30 cm or less, more preferably 20 cm or less, even more preferably 10 cm or less, and most preferably. Is 5 cm or less. In this way, by arranging the end of the lighting fixture 20 in the longitudinal direction adjacent to the wall such as the connecting surface 3a3, unevenness of light in the end region of the overhanging portion 10 is suppressed, and the appearance of the ceiling is improved. Can be increased.

  In addition, as shown in FIG. 3, when the overhang | projection part 10 is formed in the shape which has a corner | angular part, in each edge | side part of the overhang | projection part 10, of the lighting fixture 20 arrange | positioned most at the corner | angular part side. It is preferable to arrange the end portions in the longitudinal direction adjacent to the corresponding connecting surfaces 3a3. With such a configuration, an appropriate amount of light is also emitted from the lighting fixture 20 at the corners of the overhanging portion 10, thereby suppressing unevenness of light in a region corresponding to the corner of the overhanging portion 10. The aesthetics can be further enhanced.

  As shown as a modified example in FIG. 4, when the overhang portion 10 is formed in a shape having a corner portion, the portion corresponding to the corner portion of the overhang portion 10 is bent at a right angle in the central portion in the longitudinal direction. A letter-shaped L-shaped luminaire 21 can also be arranged. For example, the L-shaped lighting fixture 21 may have a configuration in which a plurality of LED light sources are arranged in an L shape. In this way, by adopting a configuration in which the L-shaped lighting fixture 21 is arranged at the corner of the overhanging portion 10, the unevenness of light in the region corresponding to the corner of the overhanging portion 10 is further suppressed, and the appearance of the ceiling is further improved. Can be increased.

  The ceiling surfaces 2a, 3a, and 4a of each level can be configured by pasting wallpaper of various colors and patterns, but as described above, the lighting fixture 20 is provided between the overhanging portion 10 and the second ceiling surface 3a2. When the configuration is such that a white wallpaper is used as the wallpaper applied to the second ceiling surface 3a2. As the white wallpaper, for example, a wallpaper having a high light reflectance such as a white wallpaper or a light beige wallpaper can be used. Moreover, it is still more preferable that the white wallpaper is composed of a glossy material. Thus, by using a white wallpaper as the wallpaper to be applied to the second ceiling surface 3a2 illuminated by the lighting fixture 20, the light emitted from the lighting fixture 20 toward the second ceiling surface 3a2 is applied to the second ceiling surface. The light can be efficiently reflected toward the indoor space by 3a2, and the indoor space of the second floor portion 3 can be illuminated more brightly by the lighting fixture 20.

  Moreover, when it is set as the structure which has arrange | positioned the lighting fixture 20 between the overhang | projection part 10 and the 2nd ceiling surface 3a2 as mentioned above, a rough surface process is given to the surface as a wallpaper stuck on the 2nd ceiling surface 3a2. Is preferably used. As the wallpaper subjected to the rough surface treatment, for example, a wallpaper having a predetermined pattern or a random pattern with irregularities on the surface can be used. By using a wallpaper that has been subjected to a rough surface treatment as a wallpaper to be applied to the second ceiling surface 3a2 that is illuminated by the lighting device 20, the second ceiling surface 3a2 is irradiated with light irradiated from the lighting device 20 to the second ceiling surface 3a2. The shade of the light corresponding to the rough surface treatment can be generated, and the aesthetics of the ceiling portion can be further enhanced.

  As shown in FIG. 5, the overhang portion 10 may be configured to include a hidden wall 10 b that protrudes upward on the outer peripheral edge thereof. In this case, it is preferable that the hidden wall 10b protrudes upward to at least the same height as the lighting fixture 20 and covers the side of the lighting fixture 20. By providing such a hidden wall 10b, it is possible to prevent the light emitted from the lighting fixture 20 from being directly applied to the indoor space and to prevent the lighting fixture 20 from being viewed from the indoor space. The aesthetics can be further enhanced. The hidden wall 10b is not limited to the shape shown in the figure, and may be various shapes as long as the shape can cover the side of the lighting fixture 20 and produce the above effect.

  6A and 6B are diagrams showing an example of a house to which the present invention is applied. FIG. 6A is a floor plan of the second floor portion, and FIG. 6B is a floor plan of the third floor portion. FIG. 7 is a diagram showing another example of a house to which the present invention is applied, in which (a) is a floor plan of the first floor portion and (b) is a floor plan of the second floor portion. Furthermore, FIG. 8 is a figure which shows the further another example of the house to which this invention was applied, Comprising: (a) is a floor plan of the 1st floor part, (b) is a floor plan of the 2nd floor part.

  Below, based on FIGS. 6-8, it demonstrates demonstrating in which part the step part of a ceiling and an overhang | projection part can be arrange | positioned in the building in which this invention was applied.

  In the house (building) 30 shown in FIG. 6, a living room 31, a dining room 32, a kitchen 33, a staircase 34, etc. are provided on the second floor shown in FIG. 6 (a), and the third floor shown in FIG. 6 (b). The part is provided with a hall 35, a bedroom 36, a storage room 37, and the like connected to the staircase 34. Verandas 38 and 39 are provided on the second and third floor portions, respectively. In addition, although illustration is abbreviate | omitted, the entrance, the bathroom, etc. are provided in the 1st floor part of this house 30.

  In this house 30, among the floor slabs separating the second floor part and the third floor part, by shifting the part of the area A1 that constitutes the ceiling part of the toilet room 40 installed next to the dining room 32, to the upper floor side, The ceiling height in the area A1 of the dining room 32 and the toilet 40 installed beside the dining room 32 is increased. And the L-shaped overhang | projection part 10 which has the same structure as shown in FIG. 2 is provided in the level | step difference formed in the ceiling part of the dining room 32 by raising ceiling height in this way. With such a configuration, it is possible to enhance the beauty of the ceiling of the dining room 32 while increasing the ceiling height of the dining room 32. In this house 30, the floor of the hall 35 corresponding to the area A1 of the third floor is raised by raising the ceiling of the second floor part in the area A1.

  In the house (building) 41 shown in FIG. 7, a garage (garage) 42, an entrance 43, two bedrooms 44 and 45, a storage room 46, a staircase 47 and the like are provided on the first floor part shown in FIG. 7B, a living room 48, a dining room 49, a kitchen 50, a storage room 51, a Japanese-style room 52, a corridor 53, a bathroom 54, and the like are provided. A veranda 55 is provided on the second floor.

  In this house 41, the floor surface in the area A2 of the living room 48 is shifted by shifting the part of the area A2 constituting the floor part of the living room 48 out of the floor slab separating the first floor part and the second floor part. Is lowered to increase the ceiling height. On the other hand, in this house 41, the floor of the second floor part is lowered in the area A2, and the ceiling surface of a part of the storage compartment 46 and the bedroom 45 corresponding to the area A2 of the first floor part is lowered. The whole of the ceiling portion of the storage door 46 is lowered, and a step is arranged in the partition wall portion, so that no step is generated in the ceiling portion. On the other hand, since a step is generated in the bedroom 45 due to the floor portion of the living room 48 being lowered, the overhanging portion 10 having the same structure as shown in FIG. 2 is provided at this step. With such a configuration, it is possible to enhance the beauty of the ceiling of the bedroom 45 provided on the lower floor side while increasing the ceiling height of the living room 48.

  In the house (building) 56 shown in FIG. 8, the first floor portion shown in FIG. 8 (a) is provided with an entrance 57, two bedrooms 58 and 59, a hallway 60, a Japanese-style room 61, a storage room 62, a staircase 63, and the like. 8B, a living room 64, a dining room 65, a kitchen 66, a Japanese-style room 67, a washroom 68, a bathroom 69 and the like are provided. A veranda 70 is provided on the second floor.

  In this house 56, the floor surface in the area A3 of the living room 64 is shifted by shifting the part of the area A3 constituting the floor part of the living room 64 out of the floor slab separating the first floor part and the second floor part. Is lowered to increase the ceiling height. On the other hand, in this house 56, the floor of the second floor part is lowered in the area A3, so that a part of the bedroom 58 and the ceiling surface of the hallway 60 corresponding to the area A3 of the first floor part are lowered. Since a step occurs in the bedroom 58 due to the floor portion of the living room 64 being lowered, an L-shaped overhanging portion 10 having the same structure as shown in FIG. 2 is provided on two sides of the step. Yes. Further, since a step is generated in the portion facing the entrance 57 of the hallway 60 and the portion facing the staircase 63 side by lowering the floor portion of the living room 64, these steps are also shown in FIG. The overhanging portion 10 having the same structure as shown in FIG. With such a configuration, it is possible to enhance the beauty of the ceiling of the bedroom 58 and the hallway 60 provided on the lower floor side while increasing the ceiling height of the living room 64.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  For example, in the above-described embodiment, the present invention is applied to an industrialized house such as a three-story building, but it can also be applied to a building having another configuration such as a wooden house. Further, the building hierarchy is not limited to a two-story or three-story structure, and may be any number of stories as long as it has a plurality of stories.

  Furthermore, the region shifted to increase the ceiling height of the floor slab is not limited to the region exemplified in the floor plan and the like, and may be provided in any living room other than the unit bathroom or the staircase or in the ceiling part of the space.

Further, a protruding wall portion 71 having the same shape as the overhanging portion 10 may be provided at the end of the floor slab 6 connected to the blow-off 7, and a lighting fixture 72 may be provided on the upper surface of the protruding wall portion 71. In this case, it is possible to enhance the aesthetics of the ceiling by enhancing the design unity between the ceiling at the boundary between the floor slab 6 and the blow-through 7 and the ceiling at the portion where the overhanging portion 10 is provided.

  The present invention can be used when building a multi-level building.

DESCRIPTION OF SYMBOLS 1 Building 2 1st floor part 2a Ceiling surface 2a1 1st ceiling surface 2a2 2nd ceiling surface 2b Floor surface 2a3 Connection surface 3 2nd floor part 3a Ceiling surface 3a1 1st ceiling surface 3a2 2nd ceiling surface 3a3 Connection surface 3b Floor surface 3b1 1st Floor surface 3b2 Second floor surface 4 Third floor portion 4a Ceiling surface 4b Floor surface 4b1 First floor surface 4b2 Second floor surface 5 Floor slab 5a First slab portion 5b Second slab portion 6 Floor slab 6a First slab portion 6b First 2 Slab part 7 Blow-out 10 Overhang part 10a Lower surface 10b Hidden wall 20 Lighting fixture 21 L-shaped lighting fixture 30 Housing (building)
31 Living room 32 Dining room 33 Kitchen 34 Staircase 35 Hall 36 Bedroom 37 Storage unit 38, 39 Veranda 40 Toilet 41 Housing (building)
42 Garage 43 Entrance 44, 45 Bedroom 46 Storage 47 Staircase 48 Living room 49 Dining room 50 Kitchen 51 Staircase 52 Japanese-style room 53 Corridor 54 Bathroom 55 Veranda 56 Housing (building)
57 Entrance 58, 59 Bedroom 60 Hallway 61 Japanese-style room 62 Storage room 63 Staircase 64 Living room 65 Dining room 66 Kitchen 67 Japanese-style room 68 Washroom 69 Bathroom 70 Veranda 71 Projecting wall 72 Lighting fixture A1 area A2 area A3 area

Claims (5)

A building having a plurality of levels,
A first slab part which constitutes at least a part of a floor slab separating the upper floor and the lower floor, and whose lower surface is the first ceiling surface of the lower floor;
A lower floor having substantially the same thickness as the first slab part, and being arranged shifted to the upper floor side or the lower floor side with respect to the first slab part and having a lower surface having a step with respect to the first ceiling surface. A second slab portion which becomes the second ceiling surface of
The first ceiling surface and the second ceiling surface protrude from the ceiling surface to the side along the ceiling surface on the lower side, and are the upper side of the first ceiling surface and the second ceiling surface. And a plate-like projecting portion that is disposed on the ceiling surface with a space therebetween.   2. The building according to claim 1, wherein a lighting fixture is disposed between a ceiling surface on the upper side of the first ceiling surface and the second ceiling surface and the projecting portion.   3. The building according to claim 1, wherein a white wallpaper is pasted on an upper ceiling surface of the first ceiling surface and the second ceiling surface. 4.   4. The wallpaper according to claim 1, wherein a wallpaper having a roughened surface is attached to a ceiling surface on an upper side of the first ceiling surface and the second ceiling surface. 5. The building described in the section.   The kitchen is provided in the hierarchy on the opposite side to the side where the 2nd slab part shifts to the 1st slab part among the upper floor and the lower floor which sandwiched the floor slab, The building of any one of 1-4.

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