Prefabricated residential units

Abstract

To provide a prefabricated dwelling unit which is easy to assemble and excellent in handling and habitability.SOLUTION: A prefabricated dwelling unit 100 is provided with a pair of first side panels 10, a second side panel 20 removably engaged with a first edge part 11 of the first side panel, and a third side panel 30 removably engaged with a second edge part 12 of the first side panel. The first side surface panel 10 is constituted by engaging at least two sub-panels 13A, 13B having engaging edge parts of the same shape to be engaged with each other at an intermediate position between the first edge part 11 and the second edge part 12, the two sub-panels 13A, 13B are brought into contact with each other so that the respective engaging edge parts are superposed in the longitudinal direction in a state that the respective main surfaces are relatively inclined, and at least one of the sub-panels is rotated around a rotary shaft orthogonal to the engaging edge parts and parallel to the main surfaces to be engaged with each other.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a prefabricated dwelling unit that can be easily assembled. [Background technology]

[0002] In recent years, there has been a demand for improved evacuation shelters in preparation for unforeseen events such as natural disasters. Existing evacuation shelters have various problems, but there is a need to further improve livability, such as ensuring living space and privacy.

[0003] Patent Document 1 discloses an assembly compartment that is installed on the floor of a building, and that includes a shell structure that is cylindrical and has a roughly rectangular cross section, formed by butting together the edges of multiple resin dividing panels and joining them together with fasteners, and has openings formed all over the surface of both ends in the axial direction of the cylinder, and wall panels that are fitted in a locking manner into grooves formed on the inner peripheral edges of the openings so as to close at least one of the openings formed on both ends, and are fixed with fasteners so as not to move within the grooves, and that is installed on the floor of a building, and the shell structure and wall panels form side walls that separate the interior of the room from the surrounding area.

[0004] The prefabricated room in Patent Document 1 is a prefabricated room for one person to use as a lodging or resting room, and is designed to be installed on the floor of a building, so it can be assembled and installed inside the building. It is conceivable that such prefabricated rooms could be used in evacuation shelters. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-203151 Summary of the Invention [Problem to be solved by the invention]

[0006] However, conventional assembly-type compartments, such as the assembly compartment of Patent Document 1, have a large number of parts and require fasteners for the parts, making assembly difficult and time-consuming.

[0007] The present invention provides a prefabricated dwelling unit that is easy to assemble and has excellent handling and livability. [Means for solving the problem]

[0008] The prefabricated living unit of the present invention comprises: a pair of first side panels arranged opposite each other with their main surfaces parallel to each other; a second side panel removably engaging with the first edges of the pair of first side panels; a third side panel removably engaging with second edges of the pair of first side panels, the first side panel is configured by engaging at least two sub-panels, each having an engaging edge of the same shape that engages with each other at an intermediate position between the first edge and the second edge in the longitudinal direction of the first side panel; The two sub-panels are engaged with each other by contacting each other so that their respective engagement edges located at the intermediate position overlap in the longitudinal direction when engaged, with their respective main surfaces inclined relative to each other, and rotating at least one of the sub-panels around a rotation axis that is perpendicular to the engagement edge and parallel to the main surface. [Effects of the Invention]

[0009] According to the present invention, the first side panel can be constructed by overlapping two sub-panels in a relatively inclined state and engaging them by rotating them relative to each other, thereby providing a prefabricated living unit that is easy to assemble and has excellent handling and livability. [Brief explanation of the drawings]

[0010] [Figure 1]FIG. 1 is a perspective view of a prefabricated living unit according to an embodiment of the present invention. [Figure 2] FIG. 2 is a plan view showing the main surface on the inner side of the first side panel. [Figure 3] FIG. 3 is a perspective view of a sub-panel that constitutes the first side panel, where (a) is a perspective view showing the outer main surface, and (b) is a perspective view showing the inner main surface. [Figure 4] FIG. 4 is a perspective view of the second side panel, where (a) is a perspective view showing the outer main surface, and (b) is a perspective view showing the inner main surface. [Figure 5] FIG. 5 is a perspective view of the third side panel, where (a) is a perspective view of the outer surface side and (b) is a perspective view of the inner surface side. [Figure 6] FIG. 6 is a perspective view of region A in FIG. [Figure 7] FIG. 7 is a front view of the same area as FIG. [Figure 8] FIG. 8 shows the state when the engagement edges of the two sub-panels begin to engage. [Figure 9] FIG. 9 is an enlarged perspective view of two protrusions as viewed from the outer surface side of the sub-panel, where (a) is an enlarged perspective view of the first protrusion and (b) is an enlarged perspective view of the second protrusion. [Figure 10] FIG. 10 is a diagram of the first cover, where (a) is a perspective view and (b) is a diagram showing the inner space. [Figure 11] FIG. 11 is an enlarged view of the upper end portions of the engaging edges of the two sub-panels, where (a) shows the state with the first cover attached, and (b) shows the state with the first cover removed. [Figure 12] FIG. 12 is a diagram of the second cover, where (a) is a perspective view and (b) is a diagram showing the inner space. [Figure 13] FIG. 13 is an enlarged view of a corner of the prefabricated dwelling unit, where (a) shows a state in which the second cover is attached, and (b) shows a state in which the second cover is removed. [Figure 14] FIG. 14 is a front view of the prefabricated dwelling unit showing the interior space covered with a net. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an embodiment of a prefabricated residential unit to which the present invention is applied will be described in detail with reference to the drawings. FIG. 1 shows a perspective view of a prefabricated residential unit 100 according to one embodiment of the present invention. The prefabricated residential unit 100 includes a pair of a first side panel 10, a second side panel 20, and a third side panel 30. The first side panel 10, the second side panel 20, and the third side panel 30 are all made of resin by blow molding. In addition, a first cover 40 and a second cover 50, which will be described later, are also made of resin.

[0012] The prefabricated living unit 100 can be easily assembled by combining the above-mentioned components, and can provide a living space for people. The prefabricated living unit 100 can be easily assembled by hand without special tools, and is suitable for use in evacuation shelters and the like in the event of an unforeseen event such as a natural disaster.

[0013] The prefabricated residential unit 100 has an overall rectangular parallelepiped shape, and its interior space S is the living space for people. The interior space S is defined by the floor surface on which the prefabricated residential unit 100 is placed and the inner surfaces of the pair of first side panel 10, second side panel 20, and third side panel 30. In the rectangular parallelepiped shape that is the exterior shape of the prefabricated residential unit 100, the longitudinal direction along which the unit is longest is defined as the X direction, the width direction perpendicular to the X direction is defined as the Y direction, and the height direction perpendicular to the X and Y directions is defined as the Z direction. Note that a more comfortable interior space S can be provided by separately placing floor panels on the floor surface.

[0014] The first side panel 10 stands vertically from the floor surface extending along the longitudinal direction (X direction) of the unit, which is the longest direction in the exterior shape of the prefabricated residential unit 100. The pair of first side panels 10 are arranged facing each other with their main surfaces parallel to each other. The second side panel 20 is removably engaged with a first edge 11, which is one edge in the longitudinal direction of the first side panel 10. The third side panel 30 is removably engaged with a second edge 12, which is the other edge in the longitudinal direction of the first side panel 10.

[0015] By the above-mentioned engagement, the first side panel 10, the second side panel 20, and the third side panel 30 stand vertically and stably from the floor surface. A specific engagement method will be described later.

[0016] FIG. 2 is a plan view showing the inner principal surface of the first side panel 10 facing the interior space S. The first side panel 10 is a flat, longitudinal member. In this embodiment, the first side panel 10 is constructed by engaging at least two sub-panels 13 (13A, 13B), each of which has an identically shaped engaging edge 131 that engages with each other midway between the first edge 11 and the second edge 12. A first cover 40 is removably attached to both ends of the engaging portions of the sub-panels 13A, 13B. In this embodiment, the four sub-panels 13 constituting the pair of first side panels 10 are identical in shape and size, and the shapes of the outer and inner principal surfaces may be different, as long as they have the same engaging edge 131 and the same engaging portions with the second and third side panels 20, 30 (described later).

[0017] 3A and 3B are perspective views of the sub-panels 13 (13A and 13B), where (a) is a perspective view showing the outer main surface and (b) is a perspective view showing the inner main surface. The sub-panels 13A and 13B can be engaged with each other at engagement edges 131, which are the engaging portions with the other sub-panel. The sub-panel 13 has a first protrusion 134 and a second protrusion 135, which have different shapes, at both ends of the engagement edge 131. That is, the two sub-panels 13A and 13B have the same shape, but when engaged, the first protrusion 134 of the sub-panel 13A fits into the second protrusion of the sub-panel 13B, and the second protrusion 135 of the sub-panel 13A fits into the first protrusion of the sub-panel 13B (see FIG. 11(b)).

[0018] As shown in FIG. 3(a), the main surface on the outer side exposed to the outside is composed of a substantially flat surface, providing an excellent design when viewed from the outside. As shown in FIG. 3(b), the main surface on the inner side has a recess 132 formed in the main surface, and a protrusion 133 protruding from the recess 132 to a position higher than the main surface on the inner side. The presence of the recess 132 gives a sense of spaciousness to a person entering the interior space S. Furthermore, the presence of the protrusion 133 prevents a person from leaning on the first side panel 10 and causing the first side panel 10 to tip over. The protrusion 133 can also be used as a stand for placing small items such as a smartphone. Furthermore, in the sub-panel 13, on the side in the X direction of the protruding portion 133, a long hole 138 is formed which extends along the X direction and penetrates in the Y direction.

[0019] The first side panel 10 is the component with the longest unit length in the longitudinal direction, and its size can make transportation difficult, take up storage space, etc. However, in this embodiment, the first side panel 10 is composed of two sub-panels 13A, 13B, which can be separated into the sub-panels for handling when transporting or storing in an unoccupied space, improving handling convenience.

[0020] 4A and 4B are perspective views of the second side panel 20, with (a) being a perspective view showing the outer main surface and (b) being a perspective view showing the inner main surface. The second side panel 20 has an opening 22 in the center that allows a person to pass through, and its overall shape is closer to a frame than a panel.

[0021] The second side panel 20 has engagement protrusions 24 and engagement convex portions 26 on both the left and right edge portions. The engagement protrusions 24 are provided on at least one corner (two corners in this embodiment) located above and below the edge portion, and are inserted into engagement holes 15 of the first side panel 10, which will be described later. A plurality of engagement convex portions 26 are provided on the edge portion, and are inserted into engagement recesses 16 (see Figures 2 and 3) of the first side panel 10, which will be described later.

[0022] 5A and 5B are perspective views of the third side panel 30, with (a) being a perspective view of the outer surface and (b) being a perspective view of the inner surface. The third side panel 30 has a shape in which a flat plate 32 is attached to the opening 22 of the second side panel 20. Therefore, the second side panel 20 and the third side panel 30 are each blow-molded using a mold in which the shapes of the portions that make up the outer frames are common.

[0023] The third side panel 30 has an engagement protrusion 34 and an engagement convex portion 36 on both the left and right edge portions. The engagement protrusion 34 is provided on at least one corner (two corners in this embodiment) located above and below the edge portion, and is inserted into an engagement hole 15 of the first side panel 10, which will be described later. A plurality of engagement convex portions 36 are provided on the edge portion, and are inserted into engagement recesses 16 (see Figures 2 and 3) of the first side panel 10, which will be described later.

[0024] The prefabricated residential unit 100 of this embodiment is assembled by combining the three types of components described above: the first side panel 10, the second side panel 20, and the third side panel 30. However, the second side panel 20 and the third side panel 30 may be a common panel. For example, by using the third side panel 30 instead of the second side panel 20, two third side panels 30 may be provided at both ends in the longitudinal direction. In this case, the opening 22 through which a person can pass does not exist in the X direction, and the opening through which a person can pass is located above.

[0025] Fig. 6 is a perspective view of a portion of the engaging edge 131 of the sub-panel 13, specifically area A in Fig. 3(a), and Fig. 7 is a front view of the same area. Fig. 8 is a diagram showing the state when the engaging edges 131 of the two sub-panels 13A and 13B begin to engage with each other. The engaging edge 131 extends along one side of the sub-panel 13 and serves to engage the two sub-panels 13A and 13B.

[0026] As shown in FIG. 8, when engaging two sub-panels 13A and 13B, the user first brings the two sub-panels 13A and 13B into contact with each other so that their engagement edges 131 overlap in the longitudinal direction while tilting their respective main surfaces relative to one another. This positions the first engagement groove 131a1 and the second engagement ridge 131b2, and the second engagement groove 131a2 and the first engagement ridge 131b1, facing each other in the Y direction. The user then rotates at least one of the sub-panels in the direction of arrow X about a rotation axis AX that is perpendicular to the engagement edge 131 and parallel to the main surfaces. This allows the user to engage the two sub-panels 13A and 13B with each other, as shown in FIG. 2. After engaging the two sub-panels 13A and 13B, the user can separate the two sub-panels 13A and 13B by rotating the two sub-panels 13A and 13B in the direction opposite to the direction of arrow X. As described above, in this embodiment, the two sub-panels 13A and 13B can be easily engaged with and separated from each other, which increases the convenience of the prefabricated living unit 100.

[0027] The configuration of the engaging edge 131 and the method of engagement will be described in more detail. The engaging edge 131 has a longitudinal engaging groove 131a and a longitudinal engaging ridge 131b that extend along one side of the sub-panel 13. The engaging groove 131a is recessed in the thickness direction of the sub-panel 13 and is a groove with a rectangular cross section that is composed of a bottom surface that is a plane perpendicular to the Y direction and a pair of side wall surfaces on both sides of the bottom surface that are planes perpendicular to the X direction. The engaging ridge 131b is formed adjacent to the engaging groove 131a and is a ridge that protrudes in the thickness direction of the sub-panel 13. That is, in the engagement edge portion 131, a portion extending in the X direction along the outer main surface or the inner main surface relative to one side wall surface of the engagement groove 131a forms the bottom surface of the engagement groove 131a, a portion extending while bending in the thickness direction from the tip edge of the portion extending in the X direction forms the engagement protrusion 131b, and the inner surface of the engagement ridge 131b forms the other side wall surface of the engagement groove 131a. Therefore, in the engagement edge portion 131, an elongated hook portion 139 with an L-shaped cross section extending from the outer main surface is formed on one side in the Z direction with respect to the gap G through which the rotation axis AX passes, and an elongated hook portion 139 with an L-shaped cross section extending from the inner main surface is formed on one side in the Z direction with respect to the gap G through which the rotation axis AX passes.

[0028] The engagement groove 131a is divided by a gap G through which the rotation axis AX passes into a first engagement groove 131a1 formed by being recessed from one surface (the main surface on the outer or inner surface) of the sub-panel 13, and a second engagement groove 131a2 formed by being recessed from the other surface (the main surface on the inner or outer surface) of the sub-panel 13. The engagement ridge 131b is also divided by a gap G into a first engagement ridge 131b1 formed adjacent to the first engagement groove 131a1, and a second engagement ridge 131b2 formed adjacent to the second engagement groove 131a2. As a result, the two sub-panels 13A and 13B engage with each other by the first engagement protrusion 131b1 of one sub-panel (sub-panel 13A) fitting into the second engagement groove 131a2 of the other sub-panel (sub-panel 13B) and the second engagement protrusion 131b2 of the one sub-panel (sub-panel 13A) fitting into the first engagement groove of the other sub-panel (sub-panel 13B).

[0029] According to the above configuration, the engagement direction of the engagement groove 131a and the engagement protrusion 131b in the engagement edge portion 131 includes two different directions (X direction and Y direction) relative to the main surface of the sub-panel 13, thereby making the engagement between the two sub-panels 13A and 13B stronger. Furthermore, when the two sub-panels 13A, 13B are engaged, they only move relatively in the Z direction by the height of the gap G until the opposing ends of their elongated hook portions 139 come into contact, thereby preventing significant rattle in the Z direction. Furthermore, the main surfaces of the two sub-panels 13A, 13B can be tilted relative to one another until the opposing ends of their elongated hook portions 139 that face each other in the Z direction come into contact, and in this state, the two sub-panels 13A, 13B can be engaged or separated.

[0030] Furthermore, in this embodiment, the first engagement ridge 131b1 and the second engagement ridge 131b2 include thin-walled ridge portions 131c at their ends adjacent to the gap G that protrude less in the thickness direction of the sub-panel 13 than other portions. That is, the thin-walled ridge portions 131c are formed by cutting away a certain amount in the height direction from the ends of the first engagement ridge 131b1 and the second engagement ridge 131b2 that are adjacent to the gap G. The first engagement ridge 131b1 includes a first thin-walled ridge portion 131c1, and the second engagement ridge 131b2 includes a second thin-walled ridge portion 131c2.

[0031] 8, while the two sub-panels 13A, 13B are tilted relative to one another, the user moves them closer to each other in a direction along the rotation axis AX until their engagement edges 131 come into contact. During this process, the first thin-walled protrusion portion 131c1 of the first engagement ridge 131b1 of one sub-panel (sub-panel 13A) passes the position of the second thin-walled protrusion portion 131c2 of the second engagement ridge 131b2 of the other sub-panel (sub-panel 13B) in a position along the rotation axis AX, and then reaches the second engagement groove 131a2 of the other sub-panel (sub-panel 13B). Thereafter, the user rotates at least one of the two sub-panels 13A, 13B in the direction of the arrow X about the rotation axis AX, whereby the two sub-panels 13A, 13B engage with each other.

[0032] In this embodiment, a thin-walled protrusion 131c that protrudes only a small amount in the thickness direction of the sub-panel 13 is formed at the end adjacent to the gap G between the two engaging protrusions 131b. This configuration allows the engaging edges 131 of the two sub-panels 13A and 13B to overlap as shown in Figure 8, and the two sub-panels 13A and 13B can be easily rotated relative to each other to engage with each other.

[0033] Figure 9 is an enlarged perspective view of the two protrusions as seen from the outer surface side of the sub-panel 13, where (a) is an enlarged perspective view of the first protrusion 134 and (b) is an enlarged perspective view of the second protrusion 135. Figure 10 is a diagram of the first cover 40, where (a) is a perspective view and (b) is a diagram showing the internal space. Figure 11 is an enlarged view of the upper end portions of the engaging edges 131 of the two sub-panels 13A and 13B, where (a) is a view showing the state with the first cover 40 attached and (b) is a view showing the state with the first cover 40 removed.

[0034] 3, the sub-panel 13 has a first protrusion 134 shown in FIG. 9(a) and a second protrusion 135 shown in FIG. 9(b) at both ends of the engagement edge 131. That is, the first protrusion 134 and the second protrusion 135 are formed on the extension portion that extends the engagement edge 131 outward.

[0035] 3 and 9(a), the first protrusion 134 includes an extended portion of the engagement groove 131a and an extended portion of the engagement ridge 131b. Meanwhile, as shown in FIGS. 3(a) and 9(b), the second protrusion 135 also includes an extended portion of the engagement groove 131a and an extended portion of the engagement ridge 131b. With this configuration, as shown in FIG. 11(b), when the two sub-panels 13A and 13B are engaged, the extended portion of the engagement ridge 131b of the first protrusion 134 fits into the extended portion of the engagement groove 131a of the second protrusion 135, and the extended portion of the engagement ridge 131b of the second protrusion 135 fits into the extended portion of the engagement groove 131a of the first protrusion 134. This allows a stable engagement state to be maintained at both ends of the engagement edge 131. Further, at both ends of the engagement edge 131, cutouts 136 and 137 that are open on both sides in the Y direction are formed on the sides of the first protrusion 134 and the second protrusion 135, respectively.

[0036] 11(a), the user can attach the first cover 40 to the first side panel 10 so as to cover the first protrusion 134, the second protrusion 135, and the cutouts 136, 137. The internal space 42 of the first cover 40 matches the shape of the engaging portions (both ends of the engaging edge 131) of the two sub-panels 13A, 13B before the first cover 40 is attached, and the attachment of the first cover 40 can more firmly maintain the engagement between the two sub-panels 13A, 13B.

[0037] Furthermore, the first cover 40 is attached so as to form a surface that is continuous with the main surfaces (both the outer and inner surfaces) of the first side panel 10. Therefore, the first cover 40 not only covers the first protrusion 134, the second protrusion 135, and the cutouts 136, 137, but also achieves an appearance that is integrated with the first side panel 10, thereby providing excellent design.

[0038] Figure 12 shows the second cover 50 (see Figure 1) attached to the corner of the prefabricated living unit 100, where (a) is a perspective view and (b) is a view showing the interior space. Figure 13 is an enlarged view of the corner of the prefabricated living unit 100, where (a) is a view showing the state with the second cover 50 attached and (b) is a view showing the state with the second cover 50 removed.

[0039] As described above, the second side panel 20 has an engagement protrusion 24 at at least one corner. Meanwhile, as shown in Figures 2 and 3, the first side panel 10 has an engagement hole 15 at at least one corner, into which the engagement protrusion 24 is inserted. As shown in Figure 13(b), when the first side panel 10 and the second side panel 20 are engaged, the engagement protrusion 24 passes through and fits into the engagement hole 15, allowing the first side panel 10 and the second side panel 20 to maintain a stable engagement state.

[0040] 13(a), the user can attach the second cover 50 to the first side panel 10 so as to cover the engagement protrusions 24 and the engagement holes 15. The internal space 52 of the second cover 50 matches the shape of the corners of the first side panel 10 before the second cover 50 is attached; specifically, the convex parts 52a formed in the internal space 52 of the second cover 50 fit into the concave parts 24a of the engagement protrusions 24 protruding from the engagement holes 15. Therefore, by attaching the second cover 50, the engagement between the first side panel 10 and the second side panel 20 can be maintained more firmly.

[0041] The second cover 50 is attached so as to form a surface continuous with the main surface, particularly the outer main surface, of the first side panel 10. Therefore, the second cover 50 not only covers the engaging protrusions 24 and the engaging holes 15, but also achieves an appearance that is integrated with the first side panel 10, thereby providing an excellent design when viewed from the outside.

[0042] As described above, the second side panel 20 has an engaging protrusion 26, and the first side panel 10 has an engaging recess 16 into which the engaging protrusion 26 is inserted. When the first side panel 10 and the second side panel 20 are engaged, the engaging protrusion 26 is inserted into and fits into the engaging recess 16, allowing the first side panel 10 and the second side panel 20 to maintain a more stable engaged state before the second cover 50 is attached.

[0043] 5, the third side panel 30 also has an engagement protrusion 34 and an engagement protrusion 36. The engagement protrusion 34 and the engagement protrusion 36 have the same functions as the engagement protrusion 24 and the engagement protrusion 26 of the second side panel 20. Therefore, the first side panel 10 and the third side panel 30 can also maintain a stable engagement state.

[0044] As described above, the prefabricated living unit 100 of this embodiment can be easily assembled by hand without any special tools. Furthermore, by constructing a large component such as the first side panel 10 with components that can be easily assembled and disassembled, such as the two sub-panels 13A and 13B, transportation and storage become easier, achieving both ease of handling and livability.

[0045] Each of the above-described components can be formed, for example, from resin, which allows for weight reduction, but the material of each component is not particularly limited. Each component can be formed using blow molding or, for example, a 3D printer. By using resin components in this way, outdoor storage becomes possible, improving the ease of handling of the prefabricated residential unit 100.

[0046] 14, the prefabricated living unit 100 of this embodiment may be configured to cover the upper part of the interior space S and the opening 22 of the second side panel 20 by hanging a net 62 over the hole 140 formed in the first side panel 10 and the upper part of the pipe 60 inserted into the hole 44 formed in the first cover 40. Also, by changing the height of the pipe 60, a large living space can be secured above the interior space S.

[0047] The present invention is not limited to the above-described embodiments, and can be appropriately modified, improved, etc. In addition, the material, shape, dimensions, numerical values, form, number, location, etc. of each component in the above-described embodiments are arbitrary and not limited as long as they can achieve the present invention. [Explanation of symbols]

[0048] 10 First Side Panel 11 First edge 12 Second edge 13 Subpanels 13A Subpanel 13B Subpanel 15 Engagement hole 16 Engagement recess 20 Second Side Panel 24 Engagement protrusion 26 Engagement protrusion 30 Third Side Panel 34 Engagement protrusion 36 Engagement protrusion 40 First Cover 50 Second Cover 100 prefabricated residential units 131 Engagement edge 131a Engagement groove 131a1 1st engagement groove 131a2 2nd engagement groove 131b Engagement protrusion 131b1 1st engagement protrusion 131b2 2nd engagement protrusion 131c Thin protrusion 131c1 1st thin protrusion 131c2 2nd thin protrusion 132 recess 133 Protrusion 134 1st protrusion 135 2nd protrusion AX Rotation Axis

Claims

1. a pair of first side panels arranged opposite each other with their main surfaces parallel to each other; a second side panel removably engaging with the first edges of the pair of first side panels; a third side panel removably engaging with second edges of the pair of first side panels, the first side panel is constructed by engaging at least two sub-panels, each having an engaging edge of the same shape that engages with each other at an intermediate position between the first edge and the second edge in the longitudinal direction of the first side panel; The two sub-panels are engaged with each other by bringing their respective engagement edges into contact with each other with the respective main surfaces inclined relative to each other, and rotating at least one of the sub-panels about a rotation axis that is perpendicular to the engagement edge and parallel to the main surface. Prefabricated living units.

2. 10. The prefabricated dwelling unit of claim 1, The engaging edge portion has an engaging groove formed by being recessed in the thickness direction of the sub-panel; an engagement protrusion formed adjacent to the engagement groove and protruding from the engagement groove in a thickness direction of the sub-panel; the engagement groove is divided into a first engagement groove formed by being recessed from one surface of the sub-panel and a second engagement groove formed by being recessed from the other surface of the sub-panel via a gap through which the rotation shaft passes, the engagement protrusion is divided into a first engagement protrusion formed adjacent to the first engagement groove and a second engagement protrusion formed adjacent to the second engagement groove via the gap, The two sub-panels are engaged with each other by the first engagement protrusion of one sub-panel fitting into the second engagement groove of the other sub-panel, and the second engagement protrusion of one sub-panel fitting into the first engagement groove of the other sub-panel. Prefabricated living units.

3. 3. The prefabricated dwelling unit according to claim 2, the first engagement protrusion and the second engagement protrusion include a thin-walled protrusion portion at an end portion adjacent to the gap, the thin-walled protrusion portion having a smaller protrusion amount in a thickness direction of the sub-panel than other portions, In the process of bringing the two sub-panels closer together in a direction along the rotation axis while they are tilted relative to one another, the thin-walled protruding portion of the first engagement ridge of one sub-panel passes the position of the thin-walled protruding portion of the second engagement ridge of the other sub-panel in a position along the rotation axis, and then reaches the position of the second engagement groove of the other sub-panel, By rotating at least one of the two sub-panels about the rotation axis, the two sub-panels engage with each other. Prefabricated living units.

4. 3. The prefabricated dwelling unit according to claim 2, the sub-panel has a first protrusion and a second protrusion at both ends of the engagement edge; the first projection includes an extended portion of the engagement groove and an extended portion of the engagement rib, the second projection includes an extended portion of the engagement groove and an extended portion of the engagement ridge, When the two sub-panels are engaged with each other, the engagement groove and the extended portion of the engagement rib of one of the first protrusion and the second protrusion are fitted into the engagement rib and the extended portion of the engagement groove of the other of the first protrusion and the second protrusion. Prefabricated living units.

5. 5. The prefabricated dwelling unit according to claim 4, a first cover attachable to the first side panel so as to cover the first protrusion and the second protrusion; The first cover is attached to the first side panel so as to form a surface continuous with the main surface of the first side panel. Prefabricated living units.

6. 10. The prefabricated dwelling unit of claim 1, At least one of the second side panel and the third side panel has an engagement protrusion at at least one corner portion, The first side panel has an engagement hole in at least one corner portion into which the engagement protrusion is inserted. Prefabricated living units.

7. 7. The prefabricated dwelling unit according to claim 6, a second cover attachable to the first side panel so as to cover the engagement projection and the engagement hole; The second cover is attached to the first side panel so as to form a surface continuous with the main surface of the first side panel. Prefabricated living units.

8. 10. The prefabricated dwelling unit of claim 1, The sub-panel has a recess formed in a main surface on the inner side and a protrusion protruding from the recess to a position higher than the main surface on the inner side. Prefabricated living units.

9. 10. The prefabricated dwelling unit of claim 1, The at least two sub-panels have the same shape. Prefabricated living units.

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