Assembled two-stage bed

Abstract

To provide a knock-down bunk bed capable of simplifying the structure, improving soundproof performances and facilitating assembling work, and an assembling method of the knock-down bunk bed.SOLUTION: A knock-down bunk bed includes a frame structure formed by assembling aluminum structural materials and providing a first-floor bedroom and a second-floor bedroom, a first-floor bedroom back face wall body for closing the back face of the first-floor bedroom, a second-floor bedroom back face wall body for closing the back face of the second-floor bedroom, corresponding to the front face of the first-floor bedroom, a pair of first-floor bedroom side wall bodies for closing the left / right sides of the first-floor bedroom, and a pair of second-floor bedroom side wall bodies for closing the left / right sides of the second-floor bedroom. A doorway to the first-floor bedroom and a doorway to the second-floor bedroom are provided at mutually opposite sides.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an assembled two-stage bed, and particularly to an invention devised so as to simplify the configuration, improve the sound insulation performance, and facilitate the assembly work.

Background Art

[0002] As those disclosing the configuration of this type of two-stage bed, for example, there are Patent Document 1, Patent Document 2, Patent Document 3, etc. First, in the case of the unit room according to the invention described in Patent Document 1, a framework is constructed using a plurality of columns and a plurality of beam members. Connecting fittings are attached to the column members, while the beam members are processed to engage with the connecting fittings. The processed portions are engaged with the connecting fittings and a connecting pin is inserted and fixed. In addition, wall panels are attached to the framework. The unit room according to the invention described in Patent Document 2 has a similar configuration.

[0003] Next, the method of partitioning a narrow room according to the invention described in Patent Document 3 is configured to partition into two rooms by using a commercially available two-stage bed as it is and appropriately providing a shielding wall.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] According to the above conventional configuration, there were the following problems. First, in the cases of Patent Document 1 and Patent Document 2, there were problems that the configuration was complex and the construction of the framework was troublesome. Also, there was a problem that no consideration was given to sound insulation between the first floor and the second floor. Also, in the case of the invention described in Patent Document 3, there were problems that the configuration was complex and no consideration was given to sound insulation between the first floor and the second floor.

[0006] The present invention has been made based on such points, and an object thereof is to provide a prefabricated two-story bed capable of achieving simplification of the structure, improvement of sound insulation performance, and facilitation of assembly work.

Means for Solving the Problems

[0007] The prefabricated two-story bed according to claim 1 of the present invention for solving the above problems is a framework structure formed by assembling aluminum structural materials and providing a first-floor sleeping area and a second-floor sleeping area, a first-floor sleeping area rear wall that closes the back of the first-floor sleeping area, and the front of the first-floor sleeping area On the side a second-floor sleeping area rear wall that closes the back of the second-floor sleeping area, a pair of first-floor sleeping area side walls that close the left and right side surfaces of the first-floor sleeping area, and a pair of second-floor sleeping area side walls that close the left and right side surfaces of the second-floor sleeping area, and the entrances of the first-floor sleeping area and the second-floor sleeping area are provided on opposite sides of each other , the first-floor bedroom rear wall, the second-floor bedroom rear wall, the first-floor bedroom side wall, and the second-floor bedroom side wall are detachably attached to the framework structure from the outside. Grooves are formed on the outside and inside of the frame material of the framework structure, and protrusions are formed on the sides of the first-floor bedroom rear wall, the second-floor bedroom rear wall, the first-floor bedroom side wall, and the second-floor bedroom side wall. A fitting with a protrusion is provided separately. The protrusions on the sides of the first-floor bedroom rear wall, the second-floor bedroom rear wall, the first-floor bedroom side wall, and the second-floor bedroom side wall are engaged with the groove on the outside of the frame material from the outside, the fitting is arranged inside, and its protrusion is engaged with the groove on the inside of the frame material from the inside. The fitting is fixed to the first-floor bedroom rear wall, the second-floor bedroom rear wall, the first-floor bedroom side wall, and the second-floor bedroom side wall with separately provided fixing screws This is what is characterized by. Also, the prefabricated two-story bed according to claim 2 is the prefabricated two-story bed according to claim 1, wherein the framework structure is composed of a first-floor floor framework structure, a first-floor / second-floor boundary framework structure, a second-floor ceiling framework structure, and columns that connect these first-floor floor framework structure, first-floor / second-floor boundary framework structure, and second-floor ceiling framework structure. Also, the prefabricated two-story bed according to claim 3 is the prefabricated two-story bed according to claim 2, wherein floor boards are installed on the first-floor floor framework structure. Furthermore, the prefabricated two-story bed according to claim 4 is the prefabricated two-story bed according to claim 2 or claim 3, wherein a pair of floor plates are installed in the first-floor / second-floor boundary framework structure, and a filler is filled between the pair of floor plates. Furthermore, the prefabricated two-story bed according to claim 5 is the prefabricated two-story bed according to any one of claims 1 to 4, wherein the first-floor bedroom rear wall, the second-floor bedroom rear wall, the first-floor bedroom side wall, and the second-floor bedroom side wall are filled with a filler between a pair of wall plates. Furthermore, the prefabricated two-story bed according to claim 6 is the prefabricated two-story bed according to claim 1, The first-floor bedroom rear wall, the second-floor bedroom rear wall, the first-floor bedroom side wall, and the second-floor bedroom side wall are installed flush with the framework structure which is characterized by the following.

Advantages of the Invention

[0008] As described above, according to the prefabricated two-story bed according to claim 1 of the present invention, it is composed of an aluminum structural material assembled to provide a first-floor bedroom and a second-floor bedroom, a first-floor bedroom rear wall that closes the rear of the first-floor bedroom, a second-floor bedroom rear wall that closes the rear of the second-floor bedroom corresponding to the front of the first-floor bedroom, a pair of first-floor bedroom side walls that close the left and right sides of the first-floor bedroom, and a pair of second-floor bedroom side walls that close the left and right sides of the second-floor bedroom. Since the entrances of the first-floor bedroom and the second-floor bedroom are provided on opposite sides of each other, simplification of the configuration, improvement of sound insulation performance, and facilitation of assembly work can be achieved. Moreover, the prefabricated two-story bed according to claim 2 is the prefabricated two-story bed according to claim 1, wherein the framework structure is composed of a first-floor floor framework structure, a first-floor / second-floor boundary framework structure, a second-floor ceiling framework structure, and columns that connect these first-floor floor framework structure, first-floor / second-floor boundary framework structure, and second-floor ceiling framework structure. Therefore, simplification of the configuration and facilitation of assembly work can be achieved. Moreover, according to the prefabricated two-story bed according to claim 3, in the prefabricated two-story bed according to claim 2, since floor plates are installed in the first-floor floor framework structure, improvement of sound insulation performance can be achieved. Moreover, according to the assembled two-stage bed according to claim 4, in the assembled two-stage bed according to claim 2 or claim 3, a pair of floor plates are installed in the first-floor / second-floor boundary framework structure, and a filler is filled between these two floor plates, so that the sound insulation performance can be further improved. Moreover, according to the assembled two-stage bed according to claim 5, in the assembled two-stage bed according to any one of claims 1 to 4, the first-floor sleeping area rear wall, the second-floor sleeping area rear wall, the first-floor sleeping area side wall, and the second-floor sleeping area side wall are filled with a filler between a pair of wall plates, so that the sound insulation performance can be further improved. Moreover, according to the assembled two-stage bed according to claim 6, in the assembled two-stage bed according to any one of claims 1 to 5, the first-floor sleeping area rear wall, the second-floor sleeping area rear wall, the first-floor sleeping area side wall, and the second-floor sleeping area side wall are detachably attached to the framework structure from the outside, so that the assembly work can be facilitated. Moreover, according to the assembled two-stage bed according to claim 7, in the assembled two-stage bed according to claim 6, grooves are formed on the outer and inner sides of the beam members of the framework structure, protrusions are formed on the sides of the first-floor sleeping area rear wall, the second-floor sleeping area rear wall, the first-floor sleeping area side wall, and the second-floor sleeping area side wall, a fitting with protrusions is provided separately, the protrusions on the sides of the first-floor sleeping area rear wall, the second-floor sleeping area rear wall, the first-floor sleeping area side wall, and the second-floor sleeping area side wall are engaged with the grooves of the beam members from the outside, the fitting is arranged inside and its protrusions are engaged with the grooves, and the fitting is fixed to the beam members by fixing screws provided separately, so that the assembly work can be facilitated. Moreover, according to the assembled two-stage bed according to claim 8, in the assembled two-stage bed according to claim 7, the first-floor sleeping area rear wall, the second-floor sleeping area rear wall, the first-floor sleeping area side wall, and the second-floor sleeping area side wall are installed flush with the framework structure, so that the protruding parts can be eliminated and the aesthetics can be improved. Also, according to the prefabricated two-story bed assembly method according to claim 9, a step of constructing a framework structure that provides a first-floor sleeping area and a second-floor sleeping area, and a step of installing a first-floor sleeping area ceiling body, a first-floor sleeping area rear wall body, a second-floor sleeping area rear wall body, a pair of first-floor sleeping area side wall bodies, and a pair of second-floor sleeping area side wall bodies on the framework structure are provided. Therefore, the assembly work can be facilitated. Also, according to the prefabricated two-story bed assembly method according to claim 10, in the prefabricated two-story bed assembly method described in claim 9, the framework structure is composed of a first-floor floor framework structure, a first-floor / second-floor boundary framework structure, a second-floor ceiling framework structure, and column members. The first-floor floor framework structure, the first-floor / second-floor boundary framework structure, and the second-floor ceiling framework structure are pre-constructed and carried into the site, and the framework structure is constructed by connecting the first-floor floor framework structure, the first-floor / second-floor boundary framework structure, and the second-floor ceiling framework structure via the column members at the site. Therefore, the assembly work can be further facilitated.

Brief Description of the Drawings

[0009]

Figure 1

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Figure 18

Embodiments for Carrying out the Invention

[0010] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 18. As shown in FIGS. 1 to 4, the prefabricated two-stage bed 1 in this embodiment incorporates the back wall 5 of the first-floor sleeping area, the back wall 7 of the second-floor sleeping area, the side walls 9 and 11 of the first-floor sleeping area, the side walls 13 and 15 of the second-floor sleeping area, and the ceiling panels 14 and 14 into the framework structure 3. In addition, the back wall 5 of the first-floor sleeping area and the back wall 7 of the second-floor sleeping area are arranged such that the side entrance 17 of the second-floor sleeping area and the side entrance 19 of the first-floor sleeping area face opposite sides. A fall prevention fence 16 is installed at the side entrance 17 of the second-floor sleeping area. In addition, a ladder 18 for ascending to the second-floor bedroom side entrance 17 is installed outside the back wall 5 of the first-floor bedroom.

[0011] The above-mentioned assembled two-story bed 1 is installed, for example, inside a room (not shown). Also, since the second-floor bedroom side entrance 17 and the first-floor bedroom side entrance 19 are arranged to face opposite sides, the assembled two-story bed 1 can divide the room (not shown) into two compartments. Further, after assembling the assembled two-story bed 1, for example, by providing a drop wall on the assembled two-story bed 1, the gap on the ceiling side can be eliminated to completely partition the two compartments and prevent sound leakage.

[0012] As shown in FIG. 5, the above-mentioned framework structure 3 includes a first-floor framework structure 21, a first-floor / second-floor boundary framework structure 23, and a second-floor ceiling framework structure 25. There is a first-floor bedroom 22 between the first-floor framework structure 21 and the first-floor / second-floor boundary framework structure 23, and a second-floor bedroom 24 between the first-floor / second-floor boundary framework structure 23 and the second-floor ceiling framework structure 25. The first-floor framework structure 21 and the first-floor / second-floor boundary framework structure 23 are connected by column members 27, 27, 27, 27 at the four corners. The second-floor ceiling framework structure 25 and the first-floor / second-floor boundary framework structure 23 are connected by column members 29, 29, 29, 29 at the four corners. As shown in FIGS. 1 and 2, a table 26 is installed in each of the first-floor bedroom 22 and the second-floor bedroom 24.

[0013] As shown in FIG. 6, the first-floor framework structure 21 has frame members 31, 31 arranged in parallel and frame members 33, 33 arranged in parallel in a direction orthogonal to the frame members 31, 31. The frame members 31, 31, 33, 33 are connected by four joints 35, 35, 35, 35 to form a rectangular frame, and beam members 37, 37, 37, 37, 37 are installed between the frame members 31, 31. The frame members 31, 33, joints 35, and beam members 37 are made of aluminum. Also, as shown in FIG. 2, a floor board material 38 is installed on the first-floor frame structure 21.

[0014] As shown in FIG. 7, the first-floor / second-floor boundary frame structure 23 also has frame members 41, 41 arranged in parallel and frame members 43, 43 arranged in parallel in a direction orthogonal to the frame members 41, 41. The frame members 41, 41, 43, 43 are connected by four corner joints 45, 45, 45, 45 to form a rectangular frame, and beam members 47, 47, 47, 47, 47 are installed between the frame members 41, 41. The frame members 41, 43, joints 45, and beam members 47 are made of aluminum. Also, as shown in FIG. 1, a floor board material 48 is installed on the first-floor / second-floor boundary frame structure 23.

[0015] As shown in FIG. 8, the second-floor ceiling frame structure 25 also has frame members 51, 51 arranged in parallel and frame members 53, 53 arranged in parallel in a direction orthogonal to the frame members 51, 51. The frame members 51, 51, 53, 53 are connected by four joints 55, 55, 55, 55 to form a rectangular frame, and a beam member 57 is installed between the frame members 51, 51. The frame members 51, 53, joints 55, and beam member 57 are made of aluminum.

[0016] The details of the structure of the first-floor / second-floor boundary frame structure 23 will be described with reference to FIGS. 7 and 9. First, the frame members 41, 43 have the same cross-sectional shape. As shown in FIG. 9, connection engaging grooves 61 with a width of the opening part narrower than the bottom are formed at the four corners, and a hollow shape with a through hole 63 formed in the center is formed. As shown in FIG. 9, the corner joint 45 has an upper engaging convex part 65 protruding upward, a lower engaging convex part 67 protruding downward, a horizontal engaging convex part 69 protruding forward in FIG. 9, and a horizontal engaging convex part (not shown) protruding to the right in FIG. 9. The horizontal engaging convex part 69 and the horizontal engaging convex part (not shown) are inserted into the through hole 63 of the frame members 41, 43 and engaged.

[0017] Further, as shown in FIG. 7, the beam member 47 is installed between beam member joints 71, 71 engaged with connection engaging grooves 61, 61 disposed inside the first-floor / second-floor boundary frame structure 23 of the frame members 41, 41. The beam member joint 71 is formed with an engaging convex portion (not shown) connected to the connection engaging grooves 61, 61 and an engaging concave portion 73 with which the end of the beam member 47 is engaged. Further, as shown in FIG. 9, two connection engaging grooves 75 are formed on each side surface of the beam member 47. The connection engaging groove 75 also has a width of the opening portion narrower than that of the bottom, similar to the connection engaging groove 61.

[0018] On the lower side in FIG. 9 of the surfaces where the beam members 47 face each other, a plate material support angle member 77 and a plate material holding angle member 79 are installed. A plurality (seven in this embodiment) of nuts 77 are respectively inserted into the connection engaging grooves 75, 75 on the lower sides of the left and right surfaces of the beam member 47 in FIG. 9. The plate material support angle member 77 and the plate material holding angle member 79 are fixed by passing a fixing bolt 81 through the side where the plate material support angle member 77 and the plate material holding angle member 79 extend vertically and screwing it into the nut 77. Further, a veneer plywood 91 is installed between the beam members 47. The left and right ends of the veneer plywood 91 in FIG. 9 are inserted and held between the sides where the plate material support angle member 77 and the plate material holding angle member 79 extend horizontally. Glass wool (not shown) is filled between the veneer plywood 91 and the floor board material 48.

[0019] Further, as shown in FIG. 9, spacers 93 are installed between the beam members 47, 47 at the outermost ends in FIG. 7 and the frame members 43, 43. The spacer 93 is also an angle member and is fixed by passing a fixing bolt 95 through the side where the spacer 93 extends upward in FIG. 9 and screwing it into the nut 77 installed in the connection engaging groove 75 of the frame member 43.

[0020] Next, the details of the structure of the above first-floor framework structure 21 will be described with reference to FIGS. 6, 10, and 11. Since the above frame members 31 and 33 have the same cross-sectional shape as the above frame members 41 and 43, the same reference numerals will be given to the detailed components and the description thereof will be omitted. Also, in the above joint 35, similar to the above-described joint 45, an upper engaging convex portion 65 protruding upward in FIG. 10, a horizontal engaging convex portion 69 protruding forward in FIG. 10, and a horizontal engaging convex portion (not shown) protruding to the right in FIG. 10 are formed. The above horizontal engaging convex portion 69 and the horizontal engaging convex portion (not shown) are inserted into the through holes 63 of the above frame members 31 and 33 and engaged therewith. Also, the above beam member 37 is installed between the above frame members 31 and 31 in the same manner as in the case of the above first-floor / second-floor boundary framework structure 23.

[0021] Next, the details of the structure of the above second-floor ceiling framework structure 25 will be described with reference to FIG. 8. Since the above frame members 51 and 53 have the same cross-sectional shape as the above frame members 41 and 43, the same reference numerals will be given to the detailed components and the description thereof will be omitted. Also, in the above joint 55, similar to the above-described joint 45, a lower engaging convex portion 67 protruding downward in FIG. 8 and two horizontal engaging convex portions (not shown) protruding respectively to the lower right, or upper right, or lower left, or upper left in FIG. 8 are formed. The above horizontal engaging convex portions are inserted into the through holes 63 of the above frame members 51 and 53 and engaged therewith. Also, the above beam member 57 is installed between the above frame members 51 and 51 in the same manner as in the case of the above first-floor / second-floor boundary framework structure 23.

[0022] Also, as shown in FIGS. 3, 4, and 13, through holes 101 are formed inside the above column members 27 and 29. The upper engaging convex portion 65 of the joint 35 of the above first-floor framework structure 21 and the lower engaging convex portion 67 of the joint 45 of the above first-floor / second-floor boundary framework structure 23 are inserted into the through hole 101 of the above column member 27, and the upper engaging convex portion 65 of the joint 45 of the above first-floor / second-floor boundary framework structure 23 and the lower engaging convex portion 67 of the joint 55 of the above second-floor ceiling framework structure 25 are inserted into the through hole 101 of the above column member 29.

[0023] Next, the ceiling panels 14, 14 will be described. As shown in FIGS. 1, 14, and 15, the ceiling panel 14 has frame members 102, 102, 103, 103 combined in a rectangular shape. As shown in FIG. 15, on the upper side of FIG. 15, an outer plate engaging recess 104 is formed by extending in the length direction (the paper surface direction in FIG. 15) in the frame member 102, and on the lower side of FIG. 15, an inner plate engaging recess 105 is formed by extending in the length direction (the paper surface direction in FIG. 15). Similarly, an outer plate engaging recess and an inner plate engaging recess (not shown) are formed in the frame member 103.

[0024] The ceiling panel 14 has an outer ceiling plate 106 and an inner ceiling plate 107. The edge of the outer ceiling plate 106 is engaged with the outer plate engaging recesses 104 of the frame members 102, 102 and the outer plate engaging recesses (not shown) of the frame members 103, 103, and the edge of the inner ceiling plate 107 is engaged with the inner plate engaging recesses 105 of the frame members 102, 102 and the inner plate engaging recesses (not shown) of the frame members 103, 103. As shown in FIG. 15, on the upper side of FIG. 15, a mounting engaging protrusion 108 is formed by extending in the length direction (the paper surface direction in FIG. 15) in the frame member 102. The ceiling panel 14 is installed on the second - floor ceiling framework structure 25 by engaging the mounting engaging protrusion 108 with the connecting engaging groove 61 of the frame member 51.

[0025] Next, the detailed configurations of the first - floor bedroom rear wall 5, the second - floor bedroom rear wall 7, the first - floor bedroom side walls 9, 11, the second - floor bedroom side walls 13, 15 will be described. The first - floor bedroom rear wall 5 and the second - floor bedroom rear wall 7 have the same configuration. For example, as shown in FIGS. 12, 13, and 16, on the outer peripheral side and on both the upper and lower sides in FIG. 12, there are wall frame members 111, 113, and on the outer peripheral side and on both the left and right sides in FIG. 12, there are wall frame members 115, 117.

[0026] The above-mentioned wall frame member 111 has a cross-sectional shape as shown in Fig. 17. On the upper left and right sides in Fig. 17, plate engaging portions 121 and 123 are formed. Further, on the lower left side in Fig. 17 of the above-mentioned wall frame member 111, an engaging convex portion 125 for installation is formed. Also, on the lower right side in Fig. 17 of the above-mentioned wall frame member 111, a concave portion 127 for engaging a fixing member is formed. The above-mentioned wall frame member 113 has the same configuration as the above-mentioned wall frame member 111, faces the above-mentioned wall frame member 111, and is arranged such that the above-mentioned engaging convex portion 125 for installation faces the same side.

[0027] The above-mentioned wall frame members 115 and 117 have the same configuration and have a cross-sectional shape as shown in Fig. 13. That is, at the center in the vertical direction in Fig. 13 and on the side where the above-mentioned wall frame members 115 and 117 face each other, a convex portion 129 for abutting a plate is formed to protrude. The above-mentioned wall frame members 115 and 117 are arranged at both ends of the above-mentioned wall frame members 111 and 113 in Fig. 12. The above-mentioned wall frame members 115 and 117 are fixed by passing screws (not shown) through both sides in the vertical direction of the above-mentioned wall frame members 115 and 117 in Fig. 12 and screwing them into the end faces of the above-mentioned wall frame members 115 and 117.

[0028] On the above-mentioned first-floor bedroom rear wall body 5, there are a plurality of gypsum boards 131 and 133. As shown in Fig. 16, the above-mentioned gypsum board 131 is installed on the surface of the above-mentioned first-floor bedroom rear wall body 5 on the side where the engaging convex portion 125 for installation is provided, and the above-mentioned gypsum board 133 is installed on the surface of the above-mentioned first-floor bedroom rear wall body 5 on the side opposite to the side where the engaging convex portion 125 for installation is provided. Both ends in the vertical direction of the above-mentioned gypsum board 131 in Fig. 16 are engaged with the plate engaging portion 121 of the above-mentioned wall frame member 111 and the plate engaging portion 121 of the above-mentioned wall frame member 113, and both ends in the vertical direction of the above-mentioned gypsum board 133 in Fig. 16 are engaged with the plate engaging portion 123 of the above-mentioned wall frame member 111 and the plate engaging portion 123 of the above-mentioned wall frame member 113. The convex portions 129 for abutting a plate of the above-mentioned wall frame members 115 and 117 are inserted between the above-mentioned gypsum boards 131 and 133.

[0029] Also, glass wool 135 is filled between the above-mentioned gypsum boards 131 and 133. Also, wallpaper (not shown) is attached across the plurality of gypsum boards 131 and the plurality of gypsum boards 133.

[0030] The first-floor bedroom side wall structures 9, 11 and the second-floor bedroom side wall structures 13, 15 also have substantially the same configuration as the first-floor bedroom rear wall structure 5.

[0031] As shown in FIGS. 16 and 18, the first-floor bedroom rear wall structure 5 engages the installation engaging protrusion 125 of the wall frame member 111 with the connection engaging groove 61 outside the frame member 31 of the first-floor framework structure 21, and engages the installation engaging protrusion 125 of the wall frame member 113 with the connection engaging groove 61 outside the frame member 41 of the first-floor / second-floor boundary framework structure 23. Also, there are wall fixing members 141, 143 for fixing the first-floor bedroom rear wall structure 5. As shown in FIG. 18, the wall fixing member 141 is formed with a frame engaging protrusion 145 and a wall engaging protrusion 147. The wall fixing member 143 has the same configuration as the wall fixing member 141.

[0032] The frame engaging protrusion 145 of the wall fixing member 141 is engaged with the connection engaging groove 61 on the opposite side (the right side in FIG. 18) of the side where the installation engaging protrusion 125 of the frame member 31 is located, and the wall engaging protrusion 147 of the wall fixing member 141 is engaged with the fixing member engaging recess 127 of the wall frame member 111 of the first-floor bedroom rear wall structure 5. Also, the wall fixing member 141 is fixed by passing a fixing screw 149 through the wall fixing member 141 and screwing it into the wall frame member 111 of the first-floor bedroom rear wall structure 5. Similarly, the wall fixing member 143 is attached to the wall frame member 113 of the first-floor bedroom rear wall structure 5 and the frame member 41 of the first-floor / second-floor boundary framework structure 23. In this way, the first-floor bedroom rear wall structure 5 is fixed to the framework structure 3.

[0033] Also, the second-floor bedroom rear wall structures 7, the first-floor bedroom side wall structures 9, 11, and the second-floor bedroom side wall structures 13, 15 are also fixed to the framework structure 3 by the same configuration as the first-floor bedroom rear wall structure 5.

[0034] Next, the operation according to this embodiment will be described. First, the first-floor sleeping area rear wall body 5, the second-floor sleeping area rear wall body 7, the first-floor sleeping area side wall bodies 9, 11, the second-floor sleeping area side wall bodies 13, 15 are incorporated into the frame structure 3. Since the first-floor sleeping area rear wall body 5 and the second-floor sleeping area rear wall body 7 are arranged such that the second-floor sleeping area side entrance 17 and the first-floor sleeping area side entrance 19 face opposite sides, the privacy of the users in the first-floor sleeping area and the users in the second-floor sleeping area is protected.

[0035] Also, gypsum boards 131, 133 are installed on the first-floor sleeping area rear wall body 5, the second-floor sleeping area rear wall body 7, the first-floor sleeping area side wall bodies 9, 11, the second-floor sleeping area side wall bodies 13, 15, and glass wool 135 is filled between the gypsum boards 131, 133, so sound insulation is achieved.

[0036] Also, regarding the assembly of the assembled two-story bed 1, in advance, the first-floor frame structure 21, the first-floor and second-floor boundary frame structure 23, and the second-floor ceiling frame structure 25 are assembled at the factory. The first-floor frame structure 21, the first-floor and second-floor boundary frame structure 23, the second-floor ceiling frame structure 25, the column members 27, 29, and the first-floor sleeping area rear wall body 5, the second-floor sleeping area rear wall body 7, the first-floor sleeping area side wall bodies 9, 11, the second-floor sleeping area side wall bodies 13, 15 are carried into the installation location. Then, the frame structure 3 is assembled by the first-floor frame structure 21, the first-floor and second-floor boundary frame structure 23, the second-floor ceiling frame structure 25, and the column members 27, 29. Next, the first-floor sleeping area rear wall body 5, the second-floor sleeping area rear wall body 7, the first-floor sleeping area side wall bodies 9, 11, the second-floor sleeping area side wall bodies 13, 15 are installed by incorporating them into the frame structure 3. Also, the first-floor sleeping area rear wall body 5, the second-floor sleeping area rear wall body 7, the first-floor sleeping area side wall bodies 9, 11, the second-floor sleeping area side wall bodies 13, 15 are engaged with the installation engagement convex portions 125 with respect to the frame structure 3 and fixed by the wall fixing members 141, 143. Also, during assembly, in order to perform the operation of inserting the lower engagement convex portion 67 of the joint 55 of the second-floor ceiling frame structure 25 into the through hole 101 of the column member 29, a working gap is provided on the ceiling side. When it is desired to completely partition the interior by the assembled two-story bed 1, the gap is closed, for example, by providing a descending wall on the ceiling side of the installation location.

[0037] Next, the effects of this embodiment will be described. First, in the assembled double-decker bed 1, since the framework structure 3 incorporates the back wall body 5 of the first-floor sleeping area, the back wall body 7 of the second-floor sleeping area, the side wall bodies 9 and 11 of the first-floor sleeping area, and the side wall bodies 13 and 15 of the second-floor sleeping area, the configuration can be simplified. Also, gypsum boards 131 and 133 are installed on the back wall body 5 of the first-floor sleeping area, the back wall body 7 of the second-floor sleeping area, the side wall bodies 9 and 11 of the first-floor sleeping area, and the side wall bodies 13 and 15 of the second-floor sleeping area, and glass wool 135 is filled between the gypsum boards 131 and 133, so sound insulation can be achieved. In addition, sufficient mechanical strength is ensured by the framework structure 3, the back wall body 5 of the first-floor sleeping area, the back wall body 7 of the second-floor sleeping area, the side wall bodies 9 and 11 of the first-floor sleeping area, and the side wall bodies 13 and 15 of the second-floor sleeping area.

[0038] Also, for the assembled double-decker bed 1, the first-floor framework structure 21, the first-floor and second-floor boundary framework structure 23, and the second-floor ceiling framework structure 25 are pre-assembled in the factory, and then they, together with the column members 27 and 29, and the back wall body 5 of the first-floor sleeping area, the back wall body 7 of the second-floor sleeping area, the side wall bodies 9 and 11 of the first-floor sleeping area, and the side wall bodies 13 and 15 of the second-floor sleeping area are carried to the installation location and assembled, so the assembly work can be facilitated. Moreover, the back wall body 5 of the first-floor sleeping area, the back wall body 7 of the second-floor sleeping area, the side wall bodies 9 and 11 of the first-floor sleeping area, and the side wall bodies 13 and 15 of the second-floor sleeping area only need to be engaged with the engagement convex portions 125 for installation with respect to the framework structure 3 and fixed by the wall fixing members 141 and 143, so the assembly work can be facilitated.

[0039] The present invention is not limited to the above-described embodiment. As the filler, in addition to glass wool, for example, rock wool, sound insulation sheets, sound insulation mats, etc. can be considered. The dimensions, materials, etc. of each component are just examples, and various cases can be considered.

Industrial Applicability

[0040] The present invention relates to an assembled two-story bed, and more particularly to an invention devised so as to simplify the configuration, improve the soundproofing performance, and facilitate the assembly work, and is suitable for, for example, a two-story bed for a nap room.

Explanation of Signs

[0041] 1 Assembled two-story bed 3 Framework structure 5 Back wall of the first-floor sleeping area 7 Back wall of the second-floor sleeping area 9 Side wall of the first-floor sleeping area 11 Side wall of the first-floor sleeping area 13 Side wall of the second-floor sleeping area 15 Side wall of the second-floor sleeping area 21 First-floor framework structure 22 First-floor sleeping area 23 Framework structure at the first-floor and second-floor boundary 24 Second-floor sleeping area 25 Second-floor ceiling framework structure 27 Column material 29 Column material 48 Floor board material 91 Veneer plywood (floor board material) 131 Gypsum board (wall board material) 133 Gypsum board (wall board material) 135 Glass wool (filling material)

Claims

1. A frame structure formed by assembling aluminum structural materials, providing a first-floor sleeping area and a second-floor sleeping area, A first-floor sleeping area rear wall that closes the back of the first-floor sleeping area, A second-floor sleeping area rear wall that closes the back of the second-floor sleeping area on the front side of the first-floor sleeping area, A pair of first-floor sleeping area side walls that close the left and right sides of the first-floor sleeping area, A pair of second-floor sleeping area side walls that close the left and right sides of the second-floor sleeping area, Comprising, The entrances of the first-floor sleeping area and the second-floor sleeping area are provided on opposite sides of each other, The first-floor sleeping area rear wall, the second-floor sleeping area rear wall, the first-floor sleeping area side walls, and the second-floor sleeping area side walls are detachably attached to the frame structure from the outside, Grooves are formed on the outside and inside of the frame members of the frame structure, Protrusions are formed on the sides of the first-floor sleeping area rear wall, the second-floor sleeping area rear wall, the first-floor sleeping area side walls, and the second-floor sleeping area side walls, A fitting with a protrusion is provided separately, The protrusions on the sides of the first-floor sleeping area rear wall, the second-floor sleeping area rear wall, the first-floor sleeping area side walls, and the second-floor sleeping area side walls are engaged with the grooves on the outside of the frame member from the outside, The fitting is arranged inside and its protrusion is engaged with the groove on the inside of the frame member from the inside, The fitting is fixed to the first-floor sleeping area rear wall, the second-floor sleeping area rear wall, the first-floor sleeping area side walls, and the second-floor sleeping area side walls by separately provided fixing screws. A prefabricated two-story bed characterized by this.

2. In the prefabricated two-story bed according to Claim 1, The frame structure is composed of a first-floor floor frame structure, a first-floor / second-floor boundary frame structure, a second-floor ceiling frame structure, and column members connecting these first-floor floor frame structure, first-floor / second-floor boundary frame structure, and second-floor ceiling frame structure. A prefabricated two-story bed characterized by this.

3. In the prefabricated two-story bed according to Claim 2, Floor boards are installed on the first-floor floor frame structure. A prefabricated two-story bed characterized by this.

4. In the prefabricated two-story bed according to Claim 2 or Claim 3, A pair of floor boards are installed on the first-floor / second-floor boundary frame structure, and a filler is filled between these pair of floor boards. A prefabricated two-story bed characterized by this.

5. In the prefabricated two-story bed according to any one of Claims 1 to 4, The prefabricated two-stage bed is characterized in that the back wall of the first-floor sleeping area, the back wall of the second-floor sleeping area, the side wall of the first-floor sleeping area, and the side wall of the second-floor sleeping area are filled with a filler between a pair of wall plates.

6. In the prefabricated two-stage bed according to Claim 1, the prefabricated two-stage bed is characterized in that the back wall of the first-floor sleeping area, the back wall of the second-floor sleeping area, the side wall of the first-floor sleeping area, and the side wall of the second-floor sleeping area are installed flush with the framework structure.

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