Under-stair structure

Abstract

To provide an under-stair structure that can effectively utilize a space and enable both telework and watching over children.SOLUTION: An under-stair structure 1 formed under a stair 2 that has at least a straight portion 10 that does not turn back, is adjacent to a living room 5, and connects a lower floor and an upper floor comprises: a sloped ceiling 3 that is formed on the lower side of the straight portion 10; and an under-stair space 4 that is formed under the stair and includes at least the lower side of the sloped ceiling 3. The under-stair space 4 is separated into two spaces by a waist-high wall 17 that is disposed on the lower side of the sloped ceiling 3 and rises from a floor surface 13 of the lower floor. The two spaces are a child's space 7, which is located on the lower side of the sloped ceiling 3, and a work space 6, which is located on the higher side of the sloped ceiling 3 and has a desk top 27 that protrudes from the waist-high wall 17.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates primarily to under-staircase structures in residential buildings. [Background technology]

[0002] The space under the stairs in a house or other building has a low sloped ceiling, which makes it unsuitable for use as a general living space, and so has traditionally been used for storage, toilets, etc.

[0003] Various inventions have been made to make more effective use of the space under the stairs. For example, an invention has been proposed that provides a home office or workspace under the stairs (see Patent Document 1 and Patent Document 2). In this invention, a workspace or the like that is basically used in a seated position is provided under the stairs, so that even in a space under the stairs with a low ceiling, a sense of oppression is not felt, and the space under the stairs can be effectively utilized.

[0004] There have also been proposals for creating a play area or study space for children in the space under the stairs (see Patent Documents 3 and 4). If the space under the stairs is used as a children's space, even if the ceiling is low, it is unlikely to get in the way, and a space with a moderately low ceiling has the advantage of making it easier for children to engage in sedentary activities such as taking a nap, reading, or studying. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2003-227237 A [Patent Document 2] JP 2013-57172 A [Patent Document 3] JP 2014-62419 A [Patent Document 4] JP 2015-209646 A Summary of the Invention [Problem to be solved by the invention]

[0006] In recent years, the number of opportunities to work from home has increased, and homes are now required to have spaces suitable for working from home. In addition, people with children who work from home want to be able to work from home while also being able to keep an eye on their children.

[0007] Therefore, an object of the present invention is to provide an under-stair structure that can effectively utilize space and enable working from home while also keeping an eye on children. [Means for solving the problem]

[0008] The first invention of the present application is a staircase structure formed under a staircase that has at least a straight portion that does not turn back, is adjacent to a living room, and connects a lower floor and an upper floor, the structure comprising a sloped ceiling formed below the straight portion, and an under-staircase space formed under the stairs including at least the underside of the sloped ceiling, the under-staircase space being separated into two spaces by a waist-high wall that is positioned below the sloped ceiling and rises from the floor surface of the lower floor, the two spaces being a child's space that is positioned on the lower side of the sloped ceiling, and a work space that is positioned on the higher side of the sloped ceiling and has a desk top protruding from the waist-high wall.

[0009] The second invention of the present application is a staircase structure of the first invention, in which a transparent panel is erected on the waist wall, and the upper end of the transparent panel is connected to the sloped ceiling.

[0010] The third invention of the present application is a staircase structure of the second invention, wherein the children's space is open toward the living room, a first partition wall with fittings installed is provided between the work space and the living room, and the entire staircase space is closed off by a second partition wall on the side opposite the living room.

[0011] A fourth aspect of the present invention is the under-staircase structure of the third aspect, wherein the fixture has a transparent portion.

[0012] The fifth invention of the present application is the under-staircase structure of the first invention, wherein the work space is formed facing an exterior wall on the side opposite the children's space, and a high window is formed along the exterior wall.

[0013] A sixth aspect of the present invention is the under-staircase structure of the fifth aspect, wherein the high window is openable and closable.

[0014] The seventh invention of the present application is the under-staircase structure of the fifth invention, in which a built-in shelf storage is formed under the high window along the exterior wall.

[0015] The eighth invention of the present application is the under-staircase structure of the third invention, wherein the children's space is a space surrounded by the floor surface of the lower floor, the sloped ceiling, the waist-high wall and the transparent panel, and a vertical wall surface provided on the opposite side of the waist-high wall, and the open boundary between the children's space and the living room is formed in a mountain shape with a first sloped section whose upper edge follows the sloped ceiling and a second sloped section having an opposite slope to the first sloped section.

[0016] A ninth aspect of the present invention is the under-staircase structure of the third aspect, wherein the space above the sloped ceiling or the second partition wall is provided with a soundproof structure. Effect of the Invention

[0017] According to the first invention of the present application, the stairs have at least a straight section that does not turn back, and the space under the stairs, including the sloped ceiling formed below the straight section, is separated into two spaces by a waist-high wall, and the two spaces are a child's space and a work space with a desk top protruding from the waist-high wall, so that when working from home facing the desk top from the work space side, the child's space can be seen on the other side across the waist-high wall, so that desk work can be done while watching over the child. And, since the child's space is located on the low side of the sloped ceiling and the work space is located on the high side of the sloped ceiling, a small space with a low ceiling where children want to stay can be used as the child's space, and by using the side with a higher ceiling than the child's space as the work space, a space with two roles can be provided under the stairs, and space efficiency can be improved.

[0018] According to the second invention of the present application, a waist-high wall and a transparent panel extending from the top of the waist-high wall to the sloped ceiling are provided between the children's space and the work space, so that sounds made by the children can be blocked to a certain extent while keeping an eye on the children from the work space, and sounds made by the children can be prevented from being picked up by the microphone during, for example, a remote conference.

[0019] According to the third invention of the present application, the children's space is open to the living room, so that it is possible to keep an eye on the children whether they are in the work space or the living room. Furthermore, a first partition wall with fittings installed is provided between the work space and the living room, and the opposite side to the living room is closed off by a second partition wall, so that the daily sounds of other residents are less likely to enter the work space, allowing desk work and remote meetings to be carried out in a quieter environment.

[0020] According to the fourth invention of the present application, the fittings installed on the first partition wall have transparent parts, thereby preventing the work space from feeling claustrophobic, and making it a more comfortable space.

[0021] According to the fifth aspect of the present invention, the opposite side of the work space to the children's space faces an exterior wall, and a high window is formed along the exterior wall, so that light can be brought into the work space during the day, and a transparent panel is provided at the boundary between the children's space and the work space, so that light can also be brought into the children's space from the high window. In particular, by providing a high window, light can reach further outdoors, allowing more light to be brought into the children's space.

[0022] According to the sixth aspect of the present invention, the high window can be opened and closed, so that the work space can be ventilated.

[0023] According to the seventh invention of the present application, a built-in shelf is formed under the high window, so documents, books, laptops, etc. necessary for desk work can be stored. Because the window is a high window, storage can be done without blocking the window.

[0024] According to the eighth invention of the present application, the open boundary between the children's space and the living room has an upper edge formed in a mountain shape with a first sloped section that follows the sloped ceiling and a second sloped section that has an inverse slope to the first sloped section, so that the entrance from the living room to the children's space can be designed like the gable of a house, making it easy for children to enter. And because the formation of the second sloped section makes the upper edge of the boundary mountain-shaped rather than sloped, the inner periphery can be made into an opening with an obtuse angle, making it easier to do work such as laying wallpaper during construction.

[0025] According to the ninth invention of the present application, the space above the sloped ceiling and the second partition wall have a soundproof structure, thereby blocking out noise from going up and down the stairs and daily life sounds on the other side of the second partition wall, thereby improving the soundproofing of the work space. [Brief description of the drawings]

[0026] [Figure 1] FIG. 2 is a partially omitted horizontal cross-sectional view illustrating the configuration of the under-stair structure. [Diagram 2] FIG. 2 is a partially omitted vertical cross-sectional view illustrating the configuration of the stairs and the space under the stairs. [Diagram 3] This is a diagram that adds a description of the fixtures to the partially omitted vertical cross-sectional view of Figure 2, which explains the relationship between the home office and the fixtures. [Figure 4] A diagram illustrating the first partition wall as seen from the living room side and the entrance / exit formed at the boundary between the children's space and the living room. [Diagram 5] A diagram explaining lighting and ventilation through high windows. [Figure 6] An enlarged cross-sectional view illustrating the point where sound-insulating material is placed inside the second partition wall. [Figure 7] FIG. 13 is a horizontal cross-sectional view illustrating a modification of the embodiment in which the stairs are arranged inside the living room like a living room staircase. [Figure 8] FIG. 13 is a perspective view illustrating a modified example of an embodiment in which the stairs are arranged inside the living room, like a living room staircase. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] Hereinafter, an embodiment of the staircase structure of the present invention will be described with reference to the drawings. The staircase structure 1 of this embodiment is arranged in a building such as a detached house with two or more floors or a maisonette-type apartment house, and includes a staircase 2 connecting the lower floor and the upper floor, a sloped ceiling 3 formed under the staircase 2, and a staircase space 4 formed under the staircase including the underside of the sloped ceiling 3.

[0028] As shown in FIG. 1, the staircase 2 is disposed so that one side surface on the lower floor is adjacent to the living room 5. In this embodiment, the living room 5 is a space including a living room, a dining room, or both. Although the living room 5 is not limited thereto, it is preferable that the living room 5 is a space used by all residents since the living room 5 is a space that has direct access to the work space 6 and the children's space 7 described below. In this embodiment, the other side surface of the staircase 2 on the lower floor is disposed so that it is adjacent to the toilet room 8 and the hallway 9.

[0029] As shown in Figs. 2 and 3, the staircase 2 has at least a straight section 10 that is not turned back. That is, the staircase 2 includes straight staircases that do not have a turning point, 90-degree bend staircases that bend 90 degrees along the way, or turn staircases and spiral staircases that turn 180 degrees along the way, but does not include stairs that do not have a straight section 10, such as a spiral staircase. Note that the staircase 2 is a turn staircase or a turn staircase that is formed so that the upper end of the straight section 10 is a landing 11, and if the landing 11 is formed facing an exterior wall 12, the staircase space 4 formed below the straight section 10 and the landing 11 will also face the exterior wall 12. By providing a window in the exterior wall 12 that the staircase space 4 faces, it is possible to provide lighting L and ventilation W for the staircase space 4 as shown in Fig. 5, and the comfort of the staircase space 4 can be improved. In addition, it is preferable that the sloped ceiling 3 formed below the straight section 10 is formed at a height range of at least 600 mm to 1800 mm from the floor surface 13 of the lower floor. In this embodiment, the staircase 2 forms a straight section 10 that does not turn back from the floor surface 13 of the lower floor to the 11th step, and the 11th step forms a landing 11, and a two-step turn-back section 15 is formed to form a turn-back staircase that reaches the floor surface of the upper floor. In this embodiment, the side of the staircase 2 opposite the straight section 10 of the landing 11 faces an exterior wall 12.

[0030] As shown in Fig. 1, the staircase 2 of this embodiment is 1m long in the width direction, and the combined length of the straight section 10 and the landing 11 is 3m in the horizontal direction. If the width of the staircase 2 and the combined length of the straight section 10 and the landing 11 are formed as a multiple of the modular unit in the design of the building, it is easy to design and propose products. In particular, in this embodiment, the widths of the toilet room 8 and the hallway 9 provided adjacent to the staircase 2 are also formed in modular units, which makes it easy to incorporate them into the design of the building as a whole, and the under-staircase structure 1 of this embodiment can be commercialized as a set plan with the toilet room 8 and the hallway 9.

[0031] As shown in Figures 2 and 3, below the fourth step of the straight section 10 of the staircase 2, a vertical wall surface 14 is formed, rising vertically from the floor surface 13 of the lower floor. The vertical wall surface 14 rises to a height of about the third step of the staircase 2, and a sloped ceiling 3 is formed from the upper end of the vertical wall surface 14 upward in the gradient direction of the staircase 2. The height of the upper end of the vertical wall surface 14 is, for example, 600 mm. The sloped ceiling 3 is formed from the upper end of the vertical wall surface 14 to the vicinity of the lower side of the riser board rising from the 10th step to the 11th step of the staircase 2. The height of the upper end of the sloped ceiling 3 is about the height of the 9th step of the staircase 2. A horizontal ceiling 16 is formed between the upper end of the sloped ceiling 3 and the exterior wall 12. The horizontal ceiling 16 is arranged below the landing 11, which is the 11th step of the staircase 2, and is formed at a height of, for example, 1800 mm from the floor surface 13, which is lower than the ceiling of the adjacent room 5. The sloped ceiling 3 is formed in a range of heights, for example, from 600 mm to 1800 mm. The height dimensions of the sloped ceiling 3 and the horizontal ceiling 16 are not limited to these values, and it is sufficient if they are tall enough to accommodate the children's space 7 and the work space 6, which will be described later.

[0032] In this embodiment, the space between the vertical wall surface 14 and the exterior wall 12 and below the sloped ceiling 3 and the horizontal ceiling 16 is the under-stairs space 4. The under-stairs space 4 is formed below the sloped ceiling 3 and has a waist-high wall 17 rising from the floor surface 13 of the lower floor. The waist-high wall 17 separates the under-stairs space 4 into two spaces, the space located on the lower side of the sloped ceiling 3 being the children's space 7, and the space located on the higher side of the sloped ceiling 3 being the work space 6. A second partition wall 18 is formed at the boundary between the under-stairs space 4 and the toilet room 8 and the corridor 9, completely closing it off.

[0033] The waist wall 17 is formed to a height of, for example, 900 mm from the floor surface 13, and a transparent plate 19 is erected on the waist wall 17. The transparent plate 19 is formed so that its upper end contacts the sloped ceiling 3. The transparent plate 19 is formed of glass or transparent resin, and may be provided with, for example, a window-shaped frame. The transparent plate 19 is formed to a height of, for example, 500 mm from the upper end of the waist wall 17.

[0034] As shown in FIG. 2, the children's space 7 is a space surrounded by the floor surface 13 of the lower floor, the sloped ceiling 3, the waist wall 17, the transparent panel 19, and the vertical wall surface 14 formed on the opposite side of the waist wall 17. As shown in FIG. 1 and FIG. 4, the children's space 7 is formed with an open boundary with the adjacent living room 5. The children's space 7 is also formed with a closed boundary with the adjacent corridor 9 and toilet room 8 by a second partition wall 18. The doorway 20 formed at the open boundary between the children's space 7 and the living room 5 is formed in a mountain shape with a first sloped portion 21 along the sloped ceiling 3 and a second sloped portion 22 with a reverse slope to the first sloped portion 21, and both side edges are formed along the vertical wall surface 14 and the waist wall 17, forming a shape like the gable of a house.

[0035] As shown in Figs. 2 and 3, the sloped ceiling 3 in the child's space 7 is provided with a ceiling-embedded downlight 23 that is embedded in the sloped ceiling 3. By using a ceiling-embedded type, the lighting fixture does not protrude, which can reduce injury or damage. Although not shown, the ceiling-embedded downlight 23 may have an LED light source with an adjustable angle, for example. Although not shown, the ceiling-embedded downlight 23 may have a filter cover in front of the light source that diffuses light. It is preferable that the light is diffused widely throughout the child's space 7.

[0036] The child's space 7 has a low ceiling and a narrow floor surface 13 that is a square with each side being about 900 mm, and the living room 5 side is open, providing a comfortable feeling for the child while also providing a sense of seclusion.

[0037] As shown in Figs. 1 and 2, the work space 6 is formed between the floor surface 13 of the lower floor and the ceiling surface, and the ceiling surface is formed by the sloped ceiling 3 continuing from the child space 7 and the horizontal ceiling 16 below the landing 11, and is separated by the waist wall 17, the transparent plate 19, and the outer wall 12 formed on the opposite side of the waist wall 17. The boundary with the living room 5 is closed by the first partition wall 24, and the boundary with the toilet room 8 is closed by the second partition wall 18, forming an enclosed space. As shown in Figs. 3 and 4, the first partition wall 24 is provided with a fitting 25 that serves as an entrance / exit 20 to the living room 5. The fitting 25 is, for example, a hinged door, and has rectangular openings at the top and bottom. A transparent glass plate is fitted into each rectangular opening to form a transparent portion 26. Although the work space 6 is closed by the first partition wall 24 in this way, the transparent portion 26 is formed in the fitting 25, so that the space is opened to the living room 5 side and does not feel oppressive.

[0038] As shown in FIG. 2, the work space 6 is formed by a horizontal desk top 27 protruding from the waist wall 17. The desk top 27 is formed at a height of 700 mm from the floor surface 13, and the protruding length of the desk top 27 toward the work space 6 is, for example, 500 mm. A stand light 28 capable of diffusing light is arranged on the desk top 27 to illuminate the work space 6. A lighting fixture may also be provided on the ceiling of the work space 6. Although not shown, an outlet is formed in the work space 6 at an appropriate position, and electricity can be supplied to the stand light 28, a laptop computer, a tablet terminal, etc.

[0039] Chairs 29 are arranged in work space 6 so that people can sit facing desk top 27. As described above, when the height of desk top 27 is 700 mm and the height of waist wall 17 is 900 mm, the upper part of waist wall 17 protrudes 200 mm upward from desk top 27, and transparent plate 19 is arranged above it. When a person sits on chair 29 facing desk top 27, he or she can see child space 7 through transparent plate 19, and therefore can keep an eye on a child in child space 7 while doing desk work or a remote conference in work space 6.

[0040] When the chair 29 in the work space 6 is seated, the outer wall 12 is formed behind the chair 29. The outer wall 12 has a high window 30 formed along the horizontal ceiling 16. The high window 30 is formed over the entire width of the work space 6 and folded, and the height of the high window 30 is, for example, 300 mm. By providing the high window 30 in the work space 6, light L can be taken in from the outdoors as shown in FIG. 5. In addition, since the high window 30 is along the horizontal ceiling 16, the light L taken in from the outdoors can also enter the child space 7 without being blocked. For example, if the sloped ceiling 3 is a color that easily reflects light, such as white, the light can be reflected by the sloped ceiling 3 and more light can enter the child space 7. The high window 30 may be a fixed window, but it is more preferable that it is openable. If it is openable, the outside air W can be taken in through the work space 6. In this embodiment, the high window 30 is a sliding window.

[0041] A built-in storage shelf 31 is provided under the high window 30 along the exterior wall 12. The built-in storage shelf 31 can be used as a space for storing documents and equipment necessary for desk work, for example, and by storing various books in it, the work space 6 can function as a home library.

[0042] The work space 6 is closed off at the boundary with the children's space 7 by a waist-high wall 17 and a transparent panel 19, at the boundary with the toilet room 8 by a second partition wall 18, and at the boundary with the living room 5 by a first partition wall 24, so that during remote meetings or desk work, the daily sounds of other residents or the sounds of children playing are less likely to intrude into the work space 6, and are less likely to interfere with telecommuting.

[0043] In this embodiment, as shown in Figures 2 and 6, glass wool sound insulation material 32 is arranged in the space above the sloped ceiling 3, the space above the horizontal ceiling 16, and inside the second partition wall 18, respectively, to provide soundproofing. By providing soundproofing to the walls and ceilings that separate the work space 6 and the children's space 7 in this way, the work space 6 can be made a quieter space in which it is easier to work. Note that the structure for enhancing the soundproofing of the sloped ceiling 3, the horizontal ceiling 16, and the second partition wall 18 is not limited to the glass wool sound insulation material 32, and may be, for example, a shock absorbing damper or other sound absorbing and insulating materials 32.

[0044] In this embodiment, the staircase 2 on which the staircase structure 1 is formed is disposed adjacent to the outside of a living room or other room 5 across the first partition wall 24, but is not limited thereto. The staircase 2 may be disposed on the living room 5 side of the partition wall 33 and disposed adjacent to the living room 5 on the inside of the living room 5, as in a so-called living room staircase, as shown in Figs. 7 and 8. By forming the staircase structure 1 on the inside of the living room 5 in this way, the straight section 10 and landing 11 of the staircase 2 face the living room without a partition wall, and these straight section 10 and landing 11, together with the child space 7 and the work space 6, can be incorporated into the design of the building and proposal of the floor plan as set components facing the living room.

[0045] It goes without saying that the embodiment of the present invention is not limited to the above-mentioned embodiment, and can be modified as appropriate without departing from the scope of the concept of the present invention.

[0046] <First Invention> The first invention of the present application is a staircase structure formed under a staircase that has at least a straight portion that does not turn back, is adjacent to a living room, and connects a lower floor and an upper floor, the structure comprising a sloped ceiling formed below the straight portion, and an under-staircase space formed under the stairs including at least the underside of the sloped ceiling, the under-staircase space being separated into two spaces by a waist-high wall that is positioned below the sloped ceiling and rises from the floor surface of the lower floor, the two spaces being a child's space that is positioned on the lower side of the sloped ceiling, and a work space that is positioned on the higher side of the sloped ceiling and has a desk top protruding from the waist-high wall.

[0047] According to this, the stairs have at least a straight section that does not turn back, and the space under the stairs, including the sloped ceiling formed below the straight section, is separated into two spaces by a waist-high wall, and the two spaces are a children's space and a work space with a desk top protruding from the waist-high wall, so that when working from home or the like facing the desk top from the work space side, the children's space can be seen on the other side across the waist-high wall, so that desk work can be done while keeping an eye on the child. And because the children's space is located on the low side of the sloped ceiling and the work space is located on the high side of the sloped ceiling, a small space with a low ceiling where children like to stay can be used as the children's space, and by using the side with a higher ceiling than the children's space as the work space, a space with two roles can be provided under the stairs, thereby improving spatial efficiency.

[0048] <Second Invention> The second invention of the present application is a staircase structure of the first invention, in which a transparent panel is erected on the waist wall, and the upper end of the transparent panel is connected to the sloped ceiling.

[0049] According to this, a waist-high wall is installed between the children's space and the work space, and a transparent panel extending from the top of the waist-high wall to the sloped ceiling is installed, so that the children can be watched from the work space while sounds made by the children are blocked to a certain extent, and sounds made by the children can be prevented from being picked up by microphones during remote conferences, for example.

[0050] <Third Invention> The third invention of the present application is a staircase structure of the first or second invention, wherein the children's space is open toward the living room, a first partition wall with fittings installed is provided between the work space and the living room, and the entire staircase space is closed off by a second partition wall on the side opposite the living room.

[0051] With this, the children's space is open to the living room, so it is possible to keep an eye on the children whether they are in the work space or the living room. Also, a first partition wall with fittings installed is provided between the work space and the living room, and the opposite side from the living room is closed off by a second partition wall, so that the daily sounds of other residents are less likely to enter the work space, allowing desk work and remote meetings to be carried out in a quieter environment.

[0052] <Fourth Invention> A fourth aspect of the present invention is a staircase under-structure according to any one of the first to third aspects of the present invention, wherein the fixture has a transparent portion.

[0053] According to this, since the fittings installed on the first partition wall have transparent parts, the work space can be prevented from feeling claustrophobic, making it a more comfortable space.

[0054] <Fifth Invention> The fifth invention of the present application is a staircase structure of any of the first to fourth inventions, wherein the work space is formed facing an exterior wall on the side opposite the children's space, and a high window is formed along the exterior wall.

[0055] According to this, the opposite side of the work space to the children's space is formed facing the exterior wall, and a high window is formed along the exterior wall, so light can be brought into the work space during the day, and since a transparent panel is provided at the boundary between the children's space and the work space, light can also be brought into the children's space from the high window. In particular, by installing a high window, light can reach further outdoors, allowing more light to be brought into the children's space.

[0056] <Sixth Invention> A sixth aspect of the present invention is a staircase structure according to any one of the first to fifth aspects of the present invention, wherein the high window is capable of being opened and closed.

[0057] According to this, since the high window can be opened and closed, the work space can be ventilated.

[0058] <Seventh Invention> The seventh invention of the present application is a staircase structure according to any one of the first to sixth inventions, in which a built-in shelf storage is formed below the high window along the exterior wall.

[0059] According to this, a built-in shelf is formed under the high window, so documents, books, laptops, etc. necessary for desk work can be stored. Because the window is a high window, storage can be done without blocking the window.

[0060] <Eighth Invention> The eighth invention of the present application is a staircase structure according to the first to seventh inventions, wherein the children's space is a space surrounded by the floor surface of the lower floor, the sloped ceiling, the waist-high wall and the transparent panel, and a vertical wall surface provided on the opposite side of the waist-high wall, and the open boundary between the children's space and the living room is formed in a mountain shape with an upper edge of a first sloped section that follows the sloped ceiling and a second sloped section that has an opposite slope to the first sloped section.

[0061] According to this, the open boundary between the children's space and the living room has an upper edge formed in a mountain shape with a first sloped section that follows the sloped ceiling and a second sloped section that has an opposite slope to the first sloped section, so the entrance to the children's space from the living room can be designed like the gable of a house, making it easy for children to enter. And, because the formation of the second sloped section makes the upper edge of the boundary a mountain shape rather than a sloped one, the inner perimeter can be made into an opening with an obtuse angle, making it easier to do work such as laying wallpaper during construction.

[0062] <Ninth Invention> The ninth invention of the present application is a staircase structure according to any one of the first to eighth inventions, wherein the space above the sloped ceiling or the second partition wall is made of a soundproof structure.

[0063] According to this, the space above the sloped ceiling and the second partition wall are constructed with soundproofing properties, so they can block out noises from going up and down the stairs and from daily life on the other side of the second partition wall, thereby improving the soundproofing of the work space. [Industrial Applicability]

[0064] The under-staircase structure according to the present invention is suitable, for example, as a home that allows parents to raise their children while working from home. [Explanation of symbols]

[0065] 1 Under-stair structure 2 stairs 3. Sloped ceiling 4 Space under the stairs 5 Room 6. Work Space 7. Children's Space 10 Straight section 12 Exterior Wall 17 Waist wall 18 Second Partition Wall 19 Transparent plate 24 First Partition Wall 25 Doors and windows 26 Transparent part 27 Desk top 31 Built-in shelf storage 32 Soundproofing material

Claims

1. A staircase structure having at least a straight portion that is not turned back, adjacent to a living room, and formed under a staircase connecting a lower floor and an upper floor, A sloped ceiling formed below the straight portion; A space under the stairs formed under the stairs including at least the underside of the sloped ceiling; Equipped with The space under the stairs is separated into two spaces by a waist wall that is disposed under the sloped ceiling and rises from the floor surface of the lower floor, The two spaces are a children's space located on the lower side of the sloped ceiling, and a work space located on the higher side of the sloped ceiling, with a desk top protruding from the waist-high wall, which is an under-stair structure.

2. A transparent plate is erected on the waist wall, The structure under the stairs according to claim 1 , wherein the upper end of the transparent plate is connected to the sloped ceiling.

3. The child space is open toward the living room, and a first partition wall having a fixture installed thereon is provided between the work space and the living room, 3. The structure according to claim 2, wherein the entire space under the stairs is closed off by a second partition wall on the side opposite the living room.

4. The staircase under structure according to claim 3 , wherein the fixture has a transparent portion.

5. The work space is formed so that the side opposite the child space faces an outer wall, The staircase structure according to claim 1, wherein a high window is formed along the exterior wall.

6. The under-stair structure according to claim 5 , wherein the high window is openable and closable.

7. 6. The structure for under stairs according to claim 5, wherein a built-in shelf storage is formed under the high window along the exterior wall.

8. The child space is a space surrounded by the floor surface of the lower floor, the sloped ceiling, the waist wall and the transparent panel, and a vertical wall surface provided on the opposite side of the waist wall, The open boundary between the children's space and the living room is formed in a mountain shape with a first sloped section whose upper edge follows the sloped ceiling and a second sloped section having an opposite slope to the first sloped section.

9. The under-stair structure according to claim 3 , wherein a soundproof structure is arranged in the space above the sloped ceiling or in the second partition wall.

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