JP6700023B2 - building - Google Patents

Description

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

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

  The folded ceiling is formed by folding a part of the ceiling surface into a stepped shape in the pocket space of the ceiling. By providing such a folded ceiling, it is possible to increase the ceiling height of the living room, that is, the height from the floor surface to the ceiling surface, and make the living room feel wide (for example, see Patent Document 1).

JP, 2004-011154, A

  However, since the folded ceiling is constructed by folding a part of the ceiling surface toward the inside of the pocket space of the ceiling, in the area where the beams supporting the floor of the upper floor are provided inside the pocket space. There were many restrictions on the installation area and height, such as the fact that a folded ceiling could not be provided and the ceiling height could only be increased within the range of the thickness of the ceiling pocket space. Also, if the ceiling is configured as a folded ceiling, the dimension between the floor surface of the upper floor and the ceiling surface of the lower floor becomes smaller, so it is difficult to secure sound insulation between the upper floor and the lower floor. There was also the problem that

  The present invention has an object to solve such a point, and an object thereof is to reduce the size and height of the ceiling, and to increase the ceiling height while ensuring sound insulation and to improve the aesthetic appearance. The purpose is to provide a building having an elevated ceiling structure.

  The building of the present invention is a building having a plurality of layers, and constitutes at least a part of a floor slab that separates an upper floor and a lower floor, and a lower surface is a first slab portion that is a first ceiling surface of the lower floor. A bottom surface having a thickness substantially the same as that of the first slab portion, the bottom surface being offset with respect to the first slab portion toward the upper floor side or the lower floor side and having a lower surface with respect to the first ceiling surface. A second slab portion that serves as a second ceiling surface of the floor and a ceiling surface that is a lower side of the first ceiling surface and the second ceiling surface and projects laterally from the ceiling surface, And a plate-shaped projecting portion which is arranged so as to be overlapped with a space on an upper ceiling surface of the ceiling surface and the second ceiling surface.

  In the building of the present invention, in the above structure, it is preferable that a lighting fixture is arranged between the upper ceiling surface of the first ceiling surface and the second ceiling surface and the projecting portion.

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

  In the building of the present invention, in the above-mentioned configuration, it is preferable that a wallpaper having a roughened surface is applied to a ceiling surface that is an upper side of the first ceiling surface and the second ceiling surface.

  In the building of the present invention, in the above structure, a kitchen is provided on a floor opposite to a side on which the second slab portion is displaced with respect to the first slab portion between the upper floor and the lower floor sandwiching the floor slab. Is preferred.

  According to the present invention, a part of the area where the thickness of the floor slab is constant is shifted to the upper floor side or the lower floor side while keeping the thickness constant to increase the ceiling height of the desired floor. It is possible to increase the ceiling height while reducing the size and height of the region in which the height is increased and ensuring sound insulation. In addition, by shifting a part of the floor slab to the upper floor side or the lower floor side, a step portion that occurs in the ceiling portion of the lower floor overhangs along the ceiling surface that is the lower side of the step and the ceiling surface of the upper side. Since the overhanging portions are provided so as to be overlapped with each other with a space therebetween, the overhanging portion can enhance the sense of continuity of the indoor space in the step portion and enhance the aesthetic appearance of the ceiling portion of the floor.

  As described above, according to the present invention, it is possible to provide a building having a ceiling structure in which the size and height are less restricted and the ceiling height can be increased while ensuring the 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 step 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 in the overhang|projection part. It is a figure which shows the modification of arrangement|positioning of the lighting fixture to the overhang part shown in FIG. It is a figure which shows the modification of the overhang part shown in FIG. It is a figure which shows an example of the house to which this invention was applied, (a) is a floor plan of a second floor part, (b) is a floor plan of a third floor part. It is a figure which shows the other example of the house to which this invention was applied, (a) is a floor plan of a 1st floor part, (b) is a floor plan of a 2nd floor part. It is a figure which shows the other example of the house to which this invention was applied, (a) is a floor plan of a 1st floor part, (b) is a floor plan of a 2nd floor part.

  Hereinafter, the present invention will be described more specifically by way of example 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 structure, and has three floors of a first floor portion 2, a second floor portion 3 and a third floor portion 4. have. The first floor portion 2 and the second floor portion 3 are separated by a floor slab 5, and the second floor portion 3 and the third floor portion 4 are separated by a floor slab 6. The floor slab 5 is a floor structure that supports the load of the floor of the second floor portion 3 of the building 1, and the floor slab 6 is a floor structure that supports the load of the floor of the third floor portion 4 of the building 1.

  Although not shown in detail, the first floor 2 of the building 1 is provided with an entrance, a storage room, a bathroom, etc., and the second floor 3 has a living room (living room), dining room (dining room), kitchen (kitchen), etc. A living room such as a bedroom is provided on the third floor portion 4. Further, the second floor portion 3 is provided with a blow-through 7 which 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 that separates the second-floor portion 3 and the third-floor portion 4 is shifted to the upper floor side with respect to the other portions so that the ceiling height of the second-floor portion 3, that is, the floor surface 3b to the ceiling surface 3a. The height of the part is partially increased. By partially increasing the ceiling height of the second-floor portion 3 in a region where a living room such as a living room is provided, the living room can be given a feeling of openness, thereby making the room feel wider and enhancing its comfort. ..

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

  The 2nd slab part 6b can be provided in the area|region which matched the grid of the frame structure of the steel frame structure of the building 1 of the floor slab 6, for example. With such a configuration, the second slab portion 6b can be reliably supported by the body with a simple configuration. Further, in this case, another beam may be arranged above the beam that supports the first slab portion 6a so that the second slab portion 6b is supported by the beam that is overlapped on the upper side. With such a configuration, the second slab portion 6b can be reliably supported by the frame on the upper floor side of the first slab portion 6a with a simple configuration.

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

  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, that is, The thickness of the second slab portion 6b is substantially the same as the thickness of the first slab portion 6a.

  In the illustrated case, the floor slab 6 has a constant thickness over the entire area, but the floor slab 6 is configured to have a region having a different thickness in addition to a region having a constant thickness. 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.

  As described above, in the building 1 of the present invention, the second slab portion 6b having substantially the same thickness as the first slab portion 6a with respect to the first slab portion 6a which constitutes a part of the region where the floor slab 6 has a constant thickness. Since the first slab portion 6a is shifted to the upper floor side, restrictions on the size and height of the region where the ceiling height is increased are reduced, and the second floor portion 3 is provided 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 be a predetermined thickness, 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 the desired area of the second floor portion 3 is controlled. Can be higher.

  By arranging the second slab portion 6b so as to be displaced from the first slab portion 6a on the side of the third floor portion 4 by a predetermined height, the floor surface 4b of the third floor portion 4 is provided with the first slab portion 6a. A first floor surface 4b1 formed by the upper surface and a 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 ceiling height of the area corresponding to the second floor surface 4b2 of the third floor portion 4 is lower than that of the area corresponding to the first floor surface 4b1. Therefore, it is preferable that the second floor surface 4b2 is provided in a region such as a bedroom or a storage room that does not require a high ceiling height.

  In this building 1, the kitchen is provided in the second floor portion 3 where the ceiling height is increased by shifting the second slab portion 6b with respect to the first slab portion 6a as described above. With such a configuration, it is possible to increase the ceiling height of a living room such as a living room and a dining room provided on the second floor portion 3 together with the kitchen, and enhance the comfort of the living room.

  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 has 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 displaced upward with respect to the first ceiling surface 3a1 and has a step with respect to the first ceiling surface 3a1, and between the first ceiling surface 3a1 and the second ceiling surface 3a2. 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 surface 3a1. A step formed by the second ceiling surface 3a2, which is higher than the surface 3a1, is generated.

  As described above, when the ceiling surface 3a of the second-floor portion 3 has a shape having a simple step in which the first ceiling surface 3a1 and the second ceiling surface 3a2 are connected by the connecting surface 3a3, the step causes space A sense of discontinuity will occur and the aesthetics of the ceiling will be impaired. Therefore, in the building 1 of the present invention, the first ceiling surface 3a1 and the second ceiling surface 3a2 are provided on the side of the lower side of the first ceiling surface 3a1 toward the side along the first ceiling surface 3a1. The overhanging portion 10 is provided to enhance the appearance 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 is flush with 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. In addition, the thickness of the overhanging portion 10 is smaller than the step (difference in height) between the first ceiling surface 3a1 and the second ceiling surface 3a2, so that the overhanging portion 10 is spaced apart from the second ceiling surface 3a2. Are arranged in a stack.

  As described above, in the building 1 of the present invention, since the projecting portion 10 is provided at the step portion between the first ceiling surface 3a1 and the second ceiling surface 3a2, compared to the case where a simple step is provided on the ceiling surface 3a. Thus, it is possible to enhance the sense of continuity of the space in the step portion and enhance the aesthetic appearance of the ceiling.

  It is preferable that the overhanging portion 10 is provided along the entire outer peripheral edge of the first slab portion 6a that forms a step with respect to the second slab portion 6b. 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. It is preferably formed. Further, when the first slab portion 6a has a step on three sides with respect to the second slab portion 6b, it is preferable that the overhanging portion 10 is formed in a U-shape extending along each side portion, Further, when the first slab portion 6a surrounds the second slab portion 6b in a rectangular shape and a step is formed on four sides, the overhanging portion 10 is preferably formed in a rectangular annular shape extending along each side portion. In this way, by providing the overhanging portion 10 along all the outer peripheral edges that make a step with respect to the second slab portion 6b of the first slab portion 6a, the distance between the first ceiling surface 3a1 and the second ceiling surface 3a2 is increased. It is possible to enhance the sense of continuity of the space for all the stepped portions that occur in 2) and further enhance the aesthetic appearance of the ceiling of the second floor portion 3. In these cases, the overhanging portion 10 may have a configuration in which all the portions corresponding to the respective sides are integrally formed, or may have a configuration in which separate plate bodies are combined as illustrated.

  The overhanging portion 10 can be configured, for example, by attaching a gypsum board or the like to the surface of a plate-shaped base material. In this case, by extending the base material and the gypsum board forming the first slab portion 6a and integrally forming the base material and the gypsum board forming the extension portion 10, the extension portion 10 and the first slab portion 6a are integrated. It can also be formed. Accordingly, the overhanging portion 10 can be easily formed together with the first slab portion 6a.

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

  For example, as shown in FIG. 1 when applied to a floor slab 5 that separates the first-floor portion 2 and the second-floor portion 3, in the building 1 of the present invention, one of the floor slabs 5 that separate the first-floor portion 2 and the second-floor portion 3 from each other. 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 raise the ceiling height in the region. 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 similar to the case where a part of the floor slab 6 is shifted toward the upper floor side as described above. It is possible to give a feeling of openness to a room such as a room and make the room feel wider.

  More specifically, the floor slab 5 is supported by the body 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 arranged on the lower floor side, that is, on the first floor portion 2 side with a predetermined height offset (lowered).

  Similar to the second slab portion 6b described above, the second slab portion 5b can also be provided in a region of the floor slab 5 that is aligned with the grid of the steel frame structure of the building 1. With such a configuration, the second slab portion 5b can be reliably supported by the body with a simple configuration.

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

  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, that is, 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 displaced downward from the first floor surface 3b1 formed by the upper surface of the first slab portion 5a. In this way, the ceiling height of the second floor portion 3 can be increased without reducing the thickness of the floor slab 5 in the area of the second floor surface 3b2. That is, it is possible to increase the ceiling height of the second-floor portion 3 while ensuring the thickness of the floor slab 5 and ensuring sound insulation by the floor slab 5 between the first-floor portion 2 and the second-floor portion 3. In this case as well, 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.

  The second slab portion 5b of the floor slab 5 is arranged on the first floor portion 2 side by being lowered by a predetermined height with respect to the first slab portion 5a, while the floor surface 2b of the first floor portion 2 has a constant 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 such as a storage door, which does not require a high ceiling height.

  If the second slab portion 5b is shifted to the lower floor side with respect to the first slab portion 5a so that the ceiling height of the second floor portion 3 is increased, the ceiling surface 2a of the first floor portion 2 has the first slab portion 5a of the first slab portion 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 between the first ceiling surface 2a1 and the second ceiling surface 2a2. They are connected to each other by a connecting surface 2a3 that is perpendicular to these surfaces. Thus, 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 also, By providing the overhanging portion 10 projecting laterally along the second ceiling surface 2a2 on the side of the second ceiling surface 2a2 that is the lower side of the first ceiling surface 2a1 and the second ceiling surface 2a2. , The appearance of the ceiling can be enhanced.

  The configuration of the overhanging portion 10 provided on the side portion 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 portion of the first ceiling surface 3a1 of the second floor portion 3 described above. The detailed description of the configuration will be omitted.

  As shown in FIG. 2, the lighting fixture 20 can be disposed between the overhanging portion 10 and the second ceiling surface 3a2 overlapping the overhanging portion 10 with a space therebetween. Examples of the lighting device 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. In this way, by disposing the lighting fixture 20 between the overhanging portion 10 and the second ceiling surface 3a2, the lighting equipment 20 illuminates the second ceiling surface 3a2 and the shadow of the overhanging portion 10 is projected on the second ceiling surface 3a2. In addition, the light emitted from the lighting fixture 20 toward the second ceiling surface 3a2 makes it less likely to occur, and creates a space expansion in the stepped portion between the overhanging portion 10 and the second ceiling surface 3a2, and the ceiling of the second floor portion 3 The aesthetics 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, it is possible to further enhance the appearance of the ceiling by shining light on a wider area of the second ceiling surface 3a2.

  Further, as the lighting device 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 linearly arranged into one unit, and a 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 oriented along the longitudinal direction of the overhang 10. By using such a rod-shaped lighting fixture 20, a smaller area of the lighting fixture 20 can efficiently illuminate a wider area of the second ceiling surface 3a2.

  The lighting fixture 20 also functions as indirect lighting that illuminates the interior space with the light reflected by the second ceiling surface 3a2.

  As shown in FIG. 2, the lighting fixture 20 can be attached to the upper surface of the overhang portion 10. With such a configuration, the lighting fixture 20 can be placed on the overhanging part 10 when the lighting fixture 20 is mounted on the upper surface of the overhanging part 10, whereby the lighting fixture 20 can be attached to the overhanging part 10. The mounting work can be facilitated.

  The lighting fixture 20 is not limited to the upper surface of the projecting 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 projecting portion 10 and the second ceiling surface 3a2. .. In these cases, the wiring of the lighting fixture 20 can be easily drawn into the floor slab 6 to facilitate the installation work of the lighting fixture 20.

  When arranging a plurality of rod-shaped lighting fixtures 20 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 is laterally spaced from the one lighting fixture 20, and is shifted in the longitudinal direction so that the light emitting portions of the lighting fixtures overlap each other in a predetermined range. It can be arranged. When arranging three or more rod-shaped lighting fixtures 20 on the overhanging portion 10, these lighting fixtures 20 are divided into two rows, and one row and the other row are alternately turned in the longitudinal direction. It is preferable to arrange 20. With such an arrangement, even if a plurality of rod-shaped lighting fixtures 20 are arranged on the overhanging portion 10 along the longitudinal direction thereof, a portion where adjacent light fixtures 20 are not irradiated with light is generated. Therefore, it is possible to illuminate the second ceiling surface 3a2 without unevenness.

  In the above-mentioned configuration, it is preferable to use, as the plurality of rod-shaped lighting fixtures 20, those having the same length and the same shape. Accordingly, the lighting fixtures 20 can be evenly arranged in the respective portions of the overhanging portion 10, and the second ceiling surface 3a2 can be evenly illuminated by the plurality of lighting fixtures 20.

Moreover, when arranging three or more rod-shaped lighting fixtures 20 on the overhanging portion 10, the light emitting portions of the respective lighting fixtures 20 have a length that overlaps the light emitting portions of the other lighting fixtures 20 at one end side in the longitudinal direction. It is preferable to set the same length as the length overlapping the light emitting portion of the other lighting fixture 20 on the other end side in the longitudinal direction. This makes it possible to equalize the amount of light in the portions where the light emitting portions of the respective lighting fixtures 20 overlap with each other, and to evenly illuminate the second ceiling surface 3a2 with these plurality of lighting fixtures 20.

  When the longitudinal end portion of the rod-shaped lighting fixture 20 arranged on the overhanging portion 10 is arranged to face the connecting surface 3a3 or another wall in the room, for example, the longitudinal direction of the lighting fixture 20 is reduced. 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 of the lighting fixture 20 in the longitudinal direction 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 longitudinal end of the lighting fixture 20 adjacent to the wall of the connecting surface 3a3 or the like, unevenness of light in the end region of the overhanging portion 10 is suppressed, and the aesthetic appearance of the ceiling is improved. It can be increased.

  As shown in FIG. 3, when the overhanging portion 10 is formed in a shape having a corner portion, the lighting fixture 20 disposed on the side closest to the corner portion in each side portion of the overhanging portion 10 is shown. It is preferable to arrange the ends in the longitudinal direction adjacent to the corresponding connecting surfaces 3a3. With such a configuration, even at the corners of the overhanging portion 10, a suitable amount of light is emitted from the lighting fixture 20, thereby suppressing unevenness of light in a region corresponding to the corners of the overhanging portion 10 of the ceiling. You can enhance your aesthetics.

  As shown as a modified example in FIG. 4, when the overhanging portion 10 is formed in a shape having a corner portion, a portion L corresponding to the corner portion of the overhanging portion 10 is bent at a right angle at the central portion in the longitudinal direction. It is also possible to arrange the L-shaped lighting fixture 21 having a letter shape. The L-shaped lighting fixture 21 may have a configuration in which a plurality of LED light sources are arranged and arranged in an L shape. In this way, by arranging the L-shaped lighting fixtures 21 at the corners of the overhanging portion 10, unevenness of light in the region corresponding to the corners 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, 4a of the respective layers can be configured by applying 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. In the case where the above is arranged, it is preferable to use a white wallpaper as the wallpaper to be attached to the second ceiling surface 3a2. As the white wallpaper, for example, a white wallpaper, a light beige wallpaper, or the like having a high light reflectance can be adopted. Further, it is more preferable that the white wallpaper is made of a material having gloss. As described above, by using the white wallpaper as the wallpaper to be attached 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 used. The interior space of the second floor portion 3 can be illuminated more brightly by the lighting fixture 20 by efficiently reflecting the interior space by the 3a2.

  In the case where the lighting fixture 20 is arranged between the overhanging portion 10 and the second ceiling surface 3a2 as described above, the surface is roughened as a wallpaper to be attached to the second ceiling surface 3a2. It is preferable to use the one. As the wallpaper subjected to the rough surface treatment, for example, a wallpaper having a predetermined pattern or a random pattern having irregularities on the surface can be used. By using a wallpaper that has been roughened as the wallpaper to be applied to the second ceiling surface 3a2 illuminated by the lighting fixture 20, the second ceiling surface 3a2 is illuminated by the light emitted from the lighting fixture 20 onto the second ceiling surface 3a2. It is possible to further enhance the aesthetic appearance of the ceiling portion by producing a shade of light corresponding to the rough surface treatment.

  As shown in FIG. 5, the overhanging portion 10 may be configured to include a hidden wall 10b protruding upward on the outer peripheral edge thereof. In this case, it is preferable that the hidden wall 10b is configured to project upward to at least the same height as the lighting fixture 20 and cover the lateral 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 directly irradiating the space in the room and to prevent the lighting fixture 20 from being viewed from the indoor space, and You can enhance your aesthetics. The hidden wall 10b is not limited to the illustrated shape, but may have various shapes as long as it covers the lateral sides of the lighting fixture 20 and produces the above effect.

  FIG. 6 is a diagram showing an example of a house to which the present invention is applied, in which (a) is a floor plan of a second floor portion and (b) is a floor plan of a third floor portion. FIG. 7 is a diagram showing another example of a house to which the present invention is applied, where (a) is a floor plan of the first floor portion and (b) is a floor plan of the second floor portion. Further, FIG. 8 is a view showing still another example of a house to which the present invention is applied, where (a) is a floor plan of a first floor portion and (b) is a floor plan of a second floor portion.

  Below, based on FIG. 6 to FIG. 8, an explanation will be given of where in the building to which the present invention is applied, the stepped portion and the overhanging portion of the ceiling can be arranged in the floor plan.

  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 connected to the staircase 34, a bedroom 36, a storage room 37, and the like. Further, verandas 38 and 39 are provided on the second and third floors, respectively. Although illustration is omitted, the entrance, bathroom, etc. are provided on the first floor of the house 30.

  In this house 30, of the floor slab that separates the second floor portion and the third floor portion, by shifting the portion of the area A1 that constitutes the ceiling portion of the toilet 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 it is increased. Then, by increasing the ceiling height in this way, an L-shaped overhanging portion 10 having a structure similar to that shown in FIG. 2 is provided at the step formed in the ceiling portion of the dining room 32. With such a configuration, it is possible to increase the ceiling height of the dining room 32 and enhance the aesthetic appearance of the ceiling of the dining room 32. In this house 30, the ceiling of the second floor is raised in the area A1, so that the floor of the hall 35 corresponding to the area A1 of the third floor is raised.

  In the house (building) 41 shown in FIG. 7, a garage (garage) 42, an entrance 43, two bedrooms 44, 45, a storage room 46, a staircase 47, etc. are provided on the first floor shown in FIG. 7A. 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, etc. are provided on the second floor shown in FIG. A veranda 55 is provided on the second floor.

  In this house 41, among the floor slabs that separate the first floor portion and the second floor portion, the area A2 forming the floor portion of the living room 48 is shifted to the lower floor side, so that the floor surface in the area A2 of the living room 48 is shifted. To raise the ceiling height. On the other hand, in the house 41, the floor of the second floor is lowered in the area A2, so that the ceiling surfaces of a part of the storage door 46 and the bedroom 45 corresponding to the area A2 of the first floor are lowered. The ceiling of the storage door 46 is entirely lowered, and a step is arranged in the partition wall, so that no step is formed in the ceiling. On the other hand, in the bedroom 45, since a step is generated due to the floor portion of the living room 48 being lowered, the projecting 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 ceiling height of the living room 48 and enhance the aesthetic appearance of the ceiling of the bedroom 45 provided on the lower floor side thereof.

  In the house (building) 56 shown in FIG. 8, the entrance 57, two bedrooms 58 and 59, a corridor 60, a Japanese-style room 61, a storage room 62, a staircase 63, etc. are provided on the first floor shown in FIG. 8A. 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 on the second floor shown in FIG. 8B. A veranda 70 is provided on the second floor.

  In this house 56, among the floor slabs that separate the first floor portion and the second floor portion, the area A3 that constitutes the floor portion of the living room 64 is shifted to the lower floor side, so that the floor surface in the area A3 of the living room 64 is shifted. To raise the ceiling height. On the other hand, in this house 56, since the floor of the second floor is lowered in the area A3, a part of the bedroom 58 and the ceiling surface of the corridor 60 corresponding to the area A3 of the first floor are lowered. Since the floor part of the living room 64 is lowered in the bedroom 58, a step is generated. Therefore, the L-shaped projecting portion 10 having the same structure as that shown in FIG. 2 is provided on two sides of the step. There is. Further, since a step due to the floor portion of the living room 64 being lowered is generated in a portion facing the entrance 57 of the corridor 60 and a portion facing the side of the staircase 63, these steps also have a difference in FIG. The overhanging portion 10 having a structure similar to that shown in FIG. With such a configuration, it is possible to increase the ceiling height of the living room 64 and enhance the aesthetic appearance of the ceiling of the bedroom 58 and the corridor 60 provided on the lower floor side.

  It is needless to say that the present invention is not limited to the above-mentioned embodiment and can be variously modified 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 buildings having other configurations such as a wooden house. Further, the floors of the building are not limited to two floors and three floors, and any number of floors may be used as long as it has a plurality of floors.

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

Furthermore, it is also possible to provide a projecting wall portion 71 having a shape similar to that of the projecting portion 10 at the end of the floor slab 6 connected to the blow-through 7 and provide a lighting fixture 72 on the upper surface of this projecting wall portion 71. In this case, the ceiling at the boundary between floor slab 6 and blow-through 7 and the ceiling at the portion where overhanging portion 10 is provided can have a greater sense of unity and the aesthetic appearance of the ceiling can be further enhanced.

  INDUSTRIAL APPLICABILITY The present invention can be used when building a multi-story building.

1 Building 2 First Floor 2a Ceiling 2a1 First Ceiling 2a2 Second Ceiling 2b Floor 2a3 Connecting Surface 3 Second Floor 3a Ceiling 3a1 First Ceiling 3a2 Second Ceiling 3a3 Connecting 3b Floor 3b1 1st Floor 3b2 Second floor 4 Third floor 4a Ceiling 4b Floor 4b1 First floor 4b2 Second floor 5 Floor slab 5a 1st slab 5b 2nd slab 6 Floor slab 6a 1st slab 6b 4th 2 slab part 7 blow-through 10 overhang part 10a lower surface 10b hidden wall 20 lighting fixture 21 L-shaped lighting fixture 30 house (building)
31 Living Room 32 Dining Room 33 Kitchen 34 Stair Room 35 Hall 36 Bedroom 37 Storage 38, 39 Veranda 40 Toilet 41 House (Building)
42 Garage 43 Entrance 44, 45 Bedroom 46 Storage room 47 Staircase 48 Living room 49 Dining room 50 Kitchen 51 Staircase 52 Japanese style room 53 Corridor 54 Bathroom 55 Veranda 56 House (building)
57 entrance 58, 59 bedroom 60 corridor 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 protruding wall 72 lighting fixture A1 area A2 area A3 area

Claims (6)

A building with multiple levels,
A first slab portion that constitutes at least a part of a floor slab that separates the upper floor and the lower floor, and the lower surface is the first ceiling surface of the lower floor;
A lower floor having a thickness substantially the same as that of the first slab portion, the lower floor having a thickness lower than that of the first slab portion, the lower floor having a step with respect to the first ceiling surface. A second slab that serves as the second ceiling surface of
The first ceiling surface and the second ceiling surface are protruded laterally from the ceiling surface along the lower side ceiling surface, and are the upper side of the first ceiling surface and the second ceiling surface. a plate-shaped overhang portion which is arranged to overlap at an interval in the ceiling surface, was closed,
The building characterized in that the first slab portion and the second slab portion overlap in the vertical direction in a side view . A position of a step formed between a first floor surface formed by the upper surface of the first slab portion and a second floor surface formed by the upper surface of the second slab portion;
The building according to claim 1, wherein the positions of the steps formed between the first ceiling surface and the second ceiling surface are the same in plan view. 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 projecting part, The building of Claim 1 or 2 characterized by the above-mentioned. 4. The building according to any one of claims 1 to 3 , wherein a white wallpaper is attached to an upper ceiling surface of the first ceiling surface and the second ceiling surface. Wherein the roughened on the surface to the ceiling surface becomes the upper side of the first ceiling surface and the second ceiling surface is applied wallpaper is affixed, one of claims 1-4 1 Building described in paragraph. The kitchen is provided on a floor opposite to a side on which the second slab portion is displaced with respect to the first slab portion between the upper floor and the lower floor with the floor slab sandwiched therebetween. The building according to any one of 1 to 5 .

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