Building
The building design addresses the limitation of eave depth in conventional buildings by incorporating a flat roof that extends outward from an inclined roof, allowing for deeper eaves without compromising the eaves height, thus enhancing both functionality and aesthetics.
Patent Information
- Application Number
- JP2023178278
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2023-10-16
- Publication Date
- 2025-06-11
- Estimated Expiration
- 2043-10-16
AI Technical Summary
Conventional buildings with gable or inclined roofs face a limitation in deepening the eaves due to the inclination of the roof, which restricts the extension of the roof and thus the depth of the eaves.
The building design includes an outer wall with a first roof having a first inclined portion and a second inclined portion, and a flat roof extending outward from the outer wall, positioned higher than the lower end of the first ceiling surface. This configuration allows for increased extension of the flat roof without significantly altering the eaves height, thereby deepening the eaves sufficiently.
This design enables the eaves to be made sufficiently deep while maintaining an appropriate eaves height, creating a natural connection between the indoor and outdoor spaces and enhancing the building's design and functionality.
Smart Images

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Abstract
Description
Technical Field
[0001] The present disclosure relates to a building.
Background Art
[0002] Conventionally, a house as shown in Patent Document 1, for example, is known as a building. Such a house has a gable roof.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] By the way, in the house as described above, when it is desired to deepen the eaves, the gable roof may be extended longer. However, since the gable roof is inclined, if it is extended too long, the eaves height becomes too low, so there is a limit to the eaves height. For this reason, there is a problem that the gable roof cannot be extended too long, so the eaves cannot be deepened too much.
[0005] Note that such problems are not limited to buildings having a gable roof, but are generally common in buildings having an inclined roof other than a gable roof.
Means for Solving the Problems
[0006] (1) The building that solves the above problems includes an outer wall, a first roof having a first inclined portion inclined so as to descend toward the outer wall, and a room provided below the first roof and having a first ceiling surface inclined so as to descend toward the outer wall. A flat roof extending outward is provided on the outer wall, and the flat roof is disposed at a position equal to or higher than the height of the lower end of the first ceiling surface on the outer wall.
[0007] Generally, to deepen the eaves, the first inclined portion of the first roof may be extended. However, if the first inclined portion is extended too much, the eaves height will become too low, so it is limited by the eaves height. Therefore, since the first inclined portion cannot be extended too long, the eaves cannot be deepened too much. In this regard, according to this configuration, since the flat roof extends outward from the outer wall, even if the extension length of the flat roof is increased, the eaves height hardly changes. Therefore, the eaves can be made sufficiently deep.
[0008] (2) In the building of the above (1), the flat roof is arranged so as to be adjacent to the lower end of the first ceiling surface on the outer wall. According to this configuration, the lower surface of the flat roof and the first ceiling surface are connected in a state close to being continuous. Therefore, the space under the eaves of the flat roof and the space inside the room can be connected in a natural feeling.
[0009] (3) In the building of the above (1) or (2), the first roof has a second inclined portion that inclines downward toward the side opposite to the first inclined portion at an angle equal to the first inclined portion, and the first inclined portion is shorter in the length in the inclined direction than the second inclined portion, and the flat roof partially overlaps the first inclined portion in plan view. According to this configuration, a space under the eaves of the first inclined portion narrower than the space under the eaves of the flat roof is formed above the flat roof, which can contribute to the improvement of the design property of the appearance.
[0010] (4) In the building of the above (3), the room has a first ceiling surface along the first inclined portion and a second ceiling surface along the second inclined portion, and a first boundary line that is the boundary between the first ceiling surface and the second ceiling surface is parallel to a second boundary line that is the boundary between the first inclined portion and the second inclined portion, and the height position is located between the second boundary line and the lower end of the second inclined portion. According to this configuration, the ceiling of the room becomes a gradient ceiling where the space feels wider, so a more open space can be produced.
[0011] (5) In the building of (4) above, the extension length of the flat roof from the outer wall is longer than half of the length from the first boundary line to the lower end of the first ceiling surface. According to this configuration, since the extension length of the flat roof from the outer wall is sufficiently ensured, a sufficient soffit space of the flat roof can be ensured.
[0012] (6) In the building of (4) or (5) above, a second roof having a third inclined portion inclined along the first inclined portion and a fourth inclined portion inclined along the second inclined portion is provided, and the second roof is disposed at a position shifted in the direction along the second boundary line with respect to the first roof. According to this configuration, since the first roof and the second roof are arranged side by side in the direction along the ridge of the first roof, it can contribute to an improvement in design.
[0013] (7) In the building of (6) above, the fourth inclined portion is connected so as to be continuous with the second inclined portion.
[0014] According to this configuration, since the fourth inclined portion is connected so as to be continuous with the second inclined portion, it can contribute to an improvement in design.
Effect of the Invention
[0015] The building of the present disclosure can have a sufficiently deep eaves.
Brief Description of the Drawings
[0016]
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Embodiment for Carrying Out the Invention
[0017] Hereinafter, an embodiment of a building will be described with reference to the drawings. <Building 11> As shown in FIGS. 1 to 3, the building 11 is constituted by, for example, a single-story house built on the ground. The building 11 includes a box-shaped main body portion 12 having a plurality of side walls, and a first roof 13 and a second roof 14 disposed on the main body portion 12. The main body portion 12 has a substantially rectangular shape in plan view. The first roof 13 and the second roof 14 are both constituted by gable roofs as an example. In the following description, the long side direction of the main body portion 12 is defined as the X direction, and the short side direction of the main body portion 12 is defined as the Y direction.
[0018] <Main body portion 12> As shown in FIGS. 1 to 3, the main body portion 12 includes a first main body portion 15 constituting one side in the X direction and a second main body portion 16 constituting the other side in the X direction. The first main body portion 15 and the second main body portion 16 are arranged adjacent to each other in the X direction and are connected so that their interiors communicate with each other. The width in the Y direction of the second main body portion 16 is wider than the width in the Y direction of the first main body portion 15.
[0019] The side wall on one side in the Y direction of the first main body portion 15 is an outer wall 17. The outer wall 17 of the first main body portion 15 is located inside in the Y direction from the side wall on one side in the Y direction of the second main body portion 16. At a position adjacent to the side of the first main body portion 15 opposite to the second main body portion 16 side, a rectangular plate-shaped wall member 18 is erected so as to face the first main body portion 15 in the X direction.
[0020] As shown in FIGS. 1 and 3, a sliding window 19 is provided on the outer wall 17 of the first main body 15. A flat roof 20 that extends substantially horizontally outward in the Y direction is provided at a position above the sliding window 19 on the outer wall 17 of the first main body 15. The flat roof 20 is provided on the entire outer wall 17 of the first main body 15 in the X direction and a part of the side surface facing the wall member 18 of the first main body 15. The flat roof 20 is substantially L-shaped in plan view.
[0021] <First roof 13> As shown in FIGS. 1 to 3, the first roof 13 is provided on the first main body 15. The first roof 13 has a first inclined portion 21 that inclines downward toward the outer wall 17 and a second inclined portion 22 that inclines downward in the Y direction on the opposite side of the first inclined portion 21 at an angle equal to that of the first inclined portion 21. The upper ends of the first inclined portion 21 and the second inclined portion 22 are connected to each other. The boundary between the first inclined portion 21 and the second inclined portion 22 is a second boundary line 23 that extends in the X direction. Therefore, the ridge of the first roof 13 extends in the X direction.
[0022] The first inclined portion 21 is shorter in the inclined direction than the second inclined portion 22. The lower end portions of the first inclined portion 21 and the second inclined portion 22 project outward from the first main body 15 in the Y direction. The lower end portion of the first inclined portion 21 overlaps a part of the flat roof 20 in plan view. That is, the flat roof 20 partially overlaps the first inclined portion 21 in plan view.
[0023] <Second roof 14> As shown in FIGS. 1 to 3, the second roof 14 is provided on the second main body 16. The second roof 14 has a third inclined portion 24 that inclines along the first inclined portion 21 and a fourth inclined portion 25 that inclines along the second inclined portion 22. The second roof 14 is disposed at a position shifted in the direction along the second boundary line 23 with respect to the first roof 13. That is, the second roof 14 is disposed adjacent to the first roof 13 in the X direction.
[0024] The upper ends of the third inclined portion 24 and the fourth inclined portion 25 are connected to each other. The ridge of the second roof 14 extends in the X direction. The ridge of the second roof 14 is located on the flat roof 20 side and at a higher position than the ridge of the first roof 13 in the Y direction. The lower end portions of the third inclined portion 24 and the fourth inclined portion 25 protrude outward from the second main body portion 16 in the Y direction. The fourth inclined portion 25 is connected to be continuous with the second inclined portion 22 in the X direction.
[0025] <Internal structure of the building 11> As shown in FIGS. 4 and 5, a room 26 is provided in the first main body portion 15 below the first roof 13. The room 26 has a through structure that penetrates up to the first roof 13. The room 26 has a first ceiling surface 27 along the first inclined portion 21 and a second ceiling surface 28 along the second inclined portion 22. The first ceiling surface 27 is inclined so as to descend toward the outer wall 17. The second ceiling surface 28 is inclined at the same angle as the first ceiling surface 27 so as to descend toward the side opposite to the outer wall 17 side.
[0026] The upper ends of the first ceiling surface 27 and the second ceiling surface 28 are connected to each other. The boundary between the first ceiling surface 27 and the second ceiling surface 28 is a first boundary line 29 extending in the X direction. The first boundary line 29 is parallel to the second boundary line 23 which is the boundary between the first inclined portion 21 and the second inclined portion 22. The height position of the first boundary line 29 is located between the second boundary line 23 and the lower end of the second inclined portion 22.
[0027] The second boundary line 23 is located on the outer wall 17 side of the first boundary line 29 in the Y direction. That is, the first boundary line 29 and the second boundary line 23 have different positions in the Y direction so as not to overlap each other in the vertical direction.
[0028] <Flat roof 20> As shown in FIGS. 5 and 6, the flat roof 20 is disposed at a position above the height of the lower end of the first ceiling surface 27 on the outer wall 17. As an example, the flat roof 20 of the present embodiment is disposed adjacent to the lower end of the first ceiling surface 27 on the outer wall 17. That is, the flat roof 20 is disposed such that its lower surface is slightly higher than the lower end of the first ceiling surface 27. The extension length A of the flat roof 20 in the Y direction from the outer wall 17 is longer than half of the length B from the first boundary line 29 to the lower end of the first ceiling surface 27.
[0029] A stepped surface 30 that is a vertical surface is formed between the lower surface of the flat roof 20 and the first ceiling surface 27. The sash 19 provided on the outer wall 17 includes a sash frame 31 and a glass shoji 32. The glass shoji 32 is slidably supported by the sash frame 31. The upper part of the shoji frame 33 in the glass shoji 32 faces the stepped surface 30 in the Y direction. For this reason, the upper part of the shoji frame 33 in the glass shoji 32 is difficult to be seen from inside the room 26.
[0030] <Operation of the Embodiment> In the building 11, with the flat roof 20, it is possible to make the eaves sufficiently deep while ensuring the eaves height. For this reason, since the room 26 (indoor space) having a gradient ceiling with a sense of openness and the deep eaves space under the flat roof 20 are continuous, an intermediate region between the indoors and the outdoors is created. As a result, the outdoor living scene enters the indoors while the indoor living scene spreads outdoors. As a result, it becomes possible to realize various rich lifestyles.
[0031] <Effect of the Embodiment> According to the embodiment described in detail above, the following effects are exhibited. (1) The building 11 includes an outer wall 17, a first roof 13 having a first inclined portion 21 that slopes downward toward the outer wall 17, and a room 26 provided below the first roof 13 and having a first ceiling surface 27 that slopes downward toward the outer wall 17. The outer wall 17 is provided with a flat roof 20 that extends outward. The flat roof 20 is disposed at a position above the height of the lower end of the first ceiling surface 27 in the outer wall 17.
[0032] Normally, to deepen the eaves, the first inclined portion 21 of the first roof 13 may be extended. However, if the first inclined portion 21 is extended too much, the eaves height becomes too low, so there is a limit to the eaves height. For this reason, the first inclined portion 21 cannot be extended too long, so the eaves cannot be deepened too much. In this regard, according to this configuration, since the flat roof 20 extends outward from the outer wall 17, even if the extension length A of the flat roof 20 is increased, the eaves height hardly changes. Therefore, the eaves can be made sufficiently deep.
[0033] (2) In the building 11, the flat roof 20 is disposed adjacent to the lower end of the first ceiling surface 27 in the outer wall 17. According to this configuration, the lower surface of the flat roof 20 and the first ceiling surface 27 are connected in a state close to a continuous state. For this reason, the space under the eaves of the flat roof 20 and the space inside the room 26 can be connected in a natural feeling.
[0034] (3) In the building 11, the first roof 13 has a second inclined portion 22 that slopes downward toward the side opposite to the first inclined portion 21 at the same angle as the first inclined portion 21. The first inclined portion 21 is shorter in the inclined direction length than the second inclined portion 22. The flat roof 20 partially overlaps the first inclined portion 21 in plan view.
[0035] According to this configuration, a space under the eaves of the first inclined portion 21 that is narrower than the space under the eaves of the flat roof 20 is formed above the flat roof 20, which can contribute to improving the design property of the appearance. (4) In the building 11, the room 26 has a first ceiling surface 27 along the first inclined portion 21 and a second ceiling surface 28 along the second inclined portion 22. The first boundary line 29, which is the boundary between the first ceiling surface 27 and the second ceiling surface 28, is parallel to the second boundary line 23, which is the boundary between the first inclined portion 21 and the second inclined portion 22, and the height position is located between the second boundary line 23 and the lower end of the second inclined portion 22.
[0036] According to this configuration, since the ceiling of the room 26 becomes a sloped ceiling where the space feels wider, a more open space can be created. (5) In the building 11, the extension length A of the flat roof 20 from the outer wall 17 is longer than half of the length B from the first boundary line 29 to the lower end of the first ceiling surface 27.
[0037] According to this configuration, since the extension length A of the flat roof 20 from the outer wall 17 is sufficiently ensured, sufficient space can be ensured under the eaves of the flat roof 20. (6) The building 11 includes a second roof 14 having a third inclined portion 24 that inclines along the first inclined portion 21 and a fourth inclined portion 25 that inclines along the second inclined portion 22. The second roof 14 is arranged at a position shifted in the direction along the second boundary line 23 with respect to the first roof 13.
[0038] According to this configuration, since the first roof 13 and the second roof 14 are arranged side by side in the direction along the ridge of the first roof 13, it can contribute to an improvement in design. (7) In the building 11, the fourth inclined portion 25 is connected so as to be continuous with the second inclined portion 22.
[0039] According to this configuration, since the fourth inclined portion 25 is connected so as to be continuous with the second inclined portion 22, it can contribute to an improvement in design. <Modification Example> The above embodiments are examples of the forms that the building 11 can take, and are not intended to limit the form. The building 11 can take a form different from the forms illustrated in the above embodiments. Examples thereof are forms in which part of the configuration of the embodiment is replaced, changed, or omitted, or forms in which a new configuration is added to the embodiment. Modification examples of the embodiment are shown below.
[0040] · As shown in FIG. 7, for example, the first roof 13 may be configured by a single-slope roof. In this case, the first roof 13 has a first inclined portion 21 and does not have a second inclined portion 22. · As shown in FIG. 7, the second ceiling surface 28 may be a horizontal plane.
[0041] · By omitting the stepped surface 30, the lower surface of the flat roof 20 and the first ceiling surface 27 may be connected continuously. · The fourth inclined portion 25 does not necessarily have to be connected continuously with the second inclined portion 22.
[0042] · The second roof 14 and the second main body portion 16 may be omitted. · The second roof 14 does not necessarily have to be arranged at a position shifted in the direction along the second boundary line 23 with respect to the first roof 13.
[0043] · The extension length A of the flat roof 20 from the outer wall 17 does not necessarily have to be longer than half of the length B from the first boundary line 29 to the lower end of the first ceiling surface 27. · The first boundary line 29 does not necessarily have to be parallel to the second boundary line 23.
[0044] · The first boundary line 29 does not necessarily have to be located at a height position between the second boundary line 23 and the lower end of the second inclined portion 22. · The first inclined portion 21 does not necessarily have to be shorter in the inclined direction length than the second inclined portion 22.
[0045] · The flat roof 20 does not necessarily have to partially overlap with the first inclined portion 21 in plan view. That is, the first inclined portion 21 does not necessarily have to protrude outside the outer wall 17 in the Y direction.
[0046] · The flat roof 20 does not necessarily have to be arranged adjacent to the lower end of the first ceiling surface 27 on the outer wall 17. · If the flat roof 20 is arranged at a position higher than the height of the lower end of the first ceiling surface 27 on the outer wall 17, the height of the arranged position may be appropriately changed. In this case, it is preferable to arrange the flat roof 20 so as not to contact the first roof 13.
[0047] <Supplementary Note> This specification discloses the following technologies. [Supplementary Note 1] A building comprising an outer wall, a first roof having a first inclined portion inclined so as to descend toward the outer wall, and a room provided below the first roof and having a first ceiling surface inclined so as to descend toward the outer wall, wherein a flat roof extending outward is provided on the outer wall, and the flat roof is arranged at a position higher than the height of the lower end of the first ceiling surface on the outer wall.
[0048] [Supplementary Note 2] The building according to [Supplementary Note 1], wherein the flat roof is arranged adjacent to the lower end of the first ceiling surface on the outer wall.
[0049] [Supplementary Note 3] The building according to [Supplementary Note 1] or [Supplementary Note 2], wherein the first roof has a second inclined portion inclined so as to descend in a direction opposite to the first inclined portion at an angle equal to the first inclined portion, the length of the first inclined portion in the inclined direction is shorter than that of the second inclined portion, and the flat roof partially overlaps with the first inclined portion in plan view.
[0050] [Supplementary Note 4] The room has a first ceiling surface along the first inclined portion and a second ceiling surface along the second inclined portion. A first boundary line, which is the boundary between the first ceiling surface and the second ceiling surface, is parallel to a second boundary line that is the boundary between the first inclined portion and the second inclined portion, and the height position is located between the second boundary line and the lower end of the second inclined portion. The building according to [Appendix 3].
[0051] [Appendix 5] The extension length of the flat roof from the outer wall is longer than half of the length from the first boundary line to the lower end of the first ceiling surface. The building according to [Appendix 4].
[0052] [Appendix 6] It is provided with a second roof having a third inclined portion inclined along the first inclined portion and a fourth inclined portion inclined along the second inclined portion. The second roof is arranged at a position shifted in the direction along the second boundary line with respect to the first roof. The building according to [Appendix 5].
[0053] [Appendix 7] The fourth inclined portion is connected so as to be continuous with the second inclined portion. The building according to [Appendix 6].
Explanation of Reference Numerals
[0054] 11…Building, 12…Main body portion, 13…First roof, 14…Second roof, 15…First main body portion, 16…Second main body portion, 17…Outer wall, 18…Wall member, 19…Sash, 20…Flat roof, 21…First inclined portion, 22…Second inclined portion, 23…Second boundary line, 24…Third inclined portion, 25…Fourth inclined portion, 26…Room, 27…First ceiling surface, 28…Second ceiling surface, 29…First boundary line, 30…Step surface, 31…Sash frame, 32…Glass shoji, 33…Shoji frame, A…Extension length, B…Length.
Claims
1. An outer wall, a first roof having a first inclined portion inclined to descend toward the outer wall, and a room provided below the first roof and having a first ceiling surface inclined to descend toward the outer wall. A flat roof extending outward is provided on the outer wall, the flat roof is disposed at a position equal to or higher than the height of the lower end of the first ceiling surface on the outer wall, the first roof has a second inclined portion inclined to descend toward the side opposite to the first inclined portion at an angle equal to that of the first inclined portion, the length of the first inclined portion in the inclined direction is shorter than that of the second inclined portion, the flat roof partially overlaps the first inclined portion in plan view, a building.
2. The building according to claim 1, wherein the flat roof is disposed adjacent to the lower end of the first ceiling surface on the outer wall.
3. The room has a first ceiling surface along the first inclined portion and a second ceiling surface along the second inclined portion, a first boundary line, which is a boundary between the first ceiling surface and the second ceiling surface, is parallel to a second boundary line, which is a boundary between the first inclined portion and the second inclined portion, and the height position of the first boundary line is located between the second boundary line and the lower end of the second inclined portion. The building according to claim 1 or 2.
4. The building according to claim 3, wherein the extension length of the flat roof from the outer wall is longer than half of the length from the first boundary line to the lower end of the first ceiling surface.
5. Comprising a second roof having a third inclined portion inclined along the first inclined portion and a fourth inclined portion inclined along the second inclined portion, the second roof is disposed at a position shifted in a direction along the second boundary line with respect to the first roof. The building according to claim 4.
6. The fourth inclined portion is continuously connected to the second inclined portion. The building according to claim 5.
Citation Information
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