Floor structure of building with floor outlet box

Abstract

To provide a floor structure of a building with a floor outlet box which ensures indoor ceiling height, prevents cords connected thereto from obstructing indoor walking or restricting furniture arrangement, and can retain indoor aesthetics.SOLUTION: The invention provides a floor structure of a building in which a floor outlet box is mounted on an indoor periphery of a room. The floor outlet box comprises: a box body that is rectangular in plan view and has an entirely open upper surface; a detachable lid that covers the entire opening of the upper surface of the box body; and an outlet to connect to electrical appliance cords. The outlet is attached to one of inner vertical surfaces of the box body that is positioned far from the indoor periphery of the room.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a floor structure of a building having a floor outlet box. [Background technology]

[0002] In homes, many residents place wired devices, such as electrical appliances that are connected to power sources and signal cables, on desks or storage furniture that are placed against a wall, so indoor outlets for connecting power cables, etc., are generally installed on the wall as wall-mounted outlets.

[0003] In the case of log houses, which are built using log frame construction, installing a wall outlet indoors requires wiring inside the log wall, which is the structural body, but in this case, it is necessary to manufacture logs with wiring holes drilled in them in advance at a factory or the like, and assemble them at the construction site to construct the log wall (for example, Patent Document 1). In this structure, it is nearly impossible to move or add a wall outlet after the log wall is constructed unless exposed wiring is used.

[0004] If the outlet is a floor outlet that is installed on the floor, it is possible to relocate or add an outlet even after the log wall is constructed. However, if a floor outlet is used, the cords of electrical appliances connected to the outlet will crawl on the floor, which creates a problem of obstructing indoor walking. There is a method (so-called free access floor) that uses a double floor structure to freely position the outlet so that the cords do not obstruct walking (for example, Patent Document 2), but the ceiling height is lowered by the double floor structure and the construction costs are high. In particular, in the case of a log house built by the log frame construction method, a double floor structure and securing a ceiling height would increase the number of log layers that construct the log wall, which is unacceptable in terms of construction costs. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP2018-200511A [Patent Document 2] JP2005-312101A Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention was made in consideration of the above-mentioned conventional problems, and its object is to provide a floor structure for a building having a floor outlet box that ensures ceiling height while preventing the cords connected to it from interfering with walking inside the room, does not restrict furniture placement, and maintains the aesthetic look of the room. [Means for solving the problem]

[0007] In order to solve the above problems, the floor structure of a building according to an embodiment of the present invention includes a box body having an open upper surface and an elongated rectangular shape in a plan view, A removable lid body that is installed in a manner that covers the entire opening on the top surface of the box body; A floor structure of a building in which a floor outlet box is installed, the floor outlet box having a connection part to which a cord of a wired connection device such as an electrical appliance is connected, The height of the top surface of the lid is approximately the same as the height of the floor surface, The position of one of the long sides of the box in a plan view is approximately aligned with the edge of the floor of the room, One or more wire-passing notches are provided on one of the planar long sides of the lid body on the edge side, The connected portion is attached to an elevational surface of the interior of the box body that is located far from the edge, The cord of the electrical appliance is inserted into the connection portion in a direction from the outside of the room to the inside of the room. Effect of the Invention

[0008] Since the present invention is configured as described above, it is possible to provide a floor outlet box structure which ensures ceiling height while the cords connected thereto do not impede walking inside the room, nor do they restrict furniture placement, maintaining the aesthetic look of the room, and which can be used particularly well in log cabins built using the log frame construction method, and which makes it easy to add or relocate outlets. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing an example in which a power cord of an electrical appliance is connected according to a first embodiment of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. 2 is a right side cross-sectional view of the electric appliance with the power cord removed. [Diagram 5] FIG. 11 is a perspective view showing an example of connecting a power cord of an electrical appliance according to a second embodiment of the present invention. [Figure 6] FIG. 2 is a right side cross-sectional view of the electric appliance with the power cord removed. [Figure 7] FIG. 11 is a perspective view showing an example of connecting a power cord of an electrical appliance according to a third embodiment of the present invention. [Figure 8] 1A to 1C are enlarged front cross-sectional views showing the state in which a guide rail and a carriage are used to attach a socket inside a box in each embodiment of the present invention, and enlarged end views of the guide rail and the carriage. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the floor structure of a building according to an embodiment will be described with reference to the drawings. First Embodiment

[0011] Fig. 1 is a perspective view showing the floor structure of a building according to the first embodiment of the present invention, Fig. 2 is a plan view with a part of the cover cut away showing a state in which a power cord 9 of an electrical appliance is connected in the first embodiment of the present invention, and Fig. 3 is a front view cross-sectional view showing the floor structure of a building according to the first embodiment of the present invention. In this embodiment, the floor 2 on which the floor outlet box 1 is installed is the floor 201 of the first floor, and the wall 7 is a log wall constructed by a log construction method. For convenience, the internal structure of the wall 7, which is a log wall in this embodiment, is omitted in Figs. 1, 2, and 3, and only a part above the first floor floor 201 is shown in Figs. 1 and 3.

[0012] As shown in Figures 1, 2 and 3, the structure of this embodiment is one in which a floor outlet box 1 consisting of an outlet 13 to which an electrical appliance power cord 9 is connected, a box 11 that is elongated in plan view and stores the outlet 13, and a removable lid 12 that is installed to cover the entire upper part of the box 11, is installed on the edge part of the first floor 201 inside the room so that its upper surface is approximately the same height as the upper surface of the first floor 201, and the box 11 is a rectangular prism having a plate-shaped bottom portion that is elongated in plan view and a plate-shaped outer periphery that is erected on the outer periphery of the bottom portion, and the entire top portion is open.

[0013] As shown in Figure 2, at the installation position of the floor outlet box 1, a rectangular opening is provided on the edge of the first floor 201 (i.e., near the wall) which is approximately the same as the planar outer shape of the floor outlet box 1, and a box body 11 is installed in the opening provided on the edge of the first floor 201, and a lid body 12 is placed on the top of the box body 11 so as to cover the entire top of the box body 11, with the height of the top surface of the lid body 12 and the height of the top surface of the first floor 201 being approximately the same.

[0014] As shown in Figure 3, the first floor 201 is built on horizontal joists 23 whose end faces are vertically long rectangles, and is composed of floor underlay plywood 22, which is a horizontal structural surface material, and floor finishing material 21, such as flooring material, laid on top of the floor underlay plywood 22.

[0015] As shown in Fig. 3, the wall 7 erected on the edge of the first floor 201 is constructed on a base 5 placed horizontally on a foundation 6. Note that, although the wall 7 is an exterior wall in this embodiment, it does not necessarily have to be an exterior wall as long as it is a log wall constructed by the log frame construction method, and it may also be an interior partition wall.

[0016] As shown in FIG. 3, the box 11, which is an elongated rectangle in plan view, has one long side of its outer periphery, which corresponds to the long side in plan view, attached in contact with the indoor elevation of the base 5, and the other long side attached in contact with the elevation of the support material 4 provided directly below the first floor 201. As shown in FIG. 1 and FIG. 3, this support material 4 also serves as one of the joists 23. That is, both long sides of the outer periphery of the box 11 in plan view are sandwiched between the base 5 and the support material 4 also serving as one of the joists 23. In this embodiment and the second and third embodiments described below, the support material 4 has been described as also serving as the joist 23, but the form of the support material 4 is not limited to this, and can be applied, for example, to a case where the support material 4 does not also serve as the joist 23 and is provided separately from the joist 23 directly below the floor 2, and to a structure in which the joist 23 is not required by increasing the horizontal rigidity of the floor 2 (so-called rigid floor structure). In this embodiment, the box body 11 may be attached to the base 5 via edge joists 231 or spacers depending on the structure of the first floor 201. In this case, the box body 11 is also sandwiched between the base 5 and the support material 4 (however, the base 5 is supported via the edge joists 231 or spacers) at both long sides in a plan view of the outer periphery.

[0017] When forming a heat insulating layer on the first floor 201, heat insulating material (not shown) is installed in contact with the underside of the floor base plywood 22 so as to completely fill the entire lower area of ​​the first floor 201. At this time, the heat insulating layer is installed without gaps on the underside and outer peripheral surface of the floor outlet box 1 so that no missing parts are created even at the position of the floor outlet box 1.

[0018] FIG. 4 is a right side cross-sectional view showing a state in which the power cord 9 of the electrical appliance is removed in the first embodiment of the present invention. For convenience, in FIG. 4, the wall 7, which is a log wall, is shown only partially above the first floor 201, with the internal structure omitted. As shown in FIG. 4, the outlet 13 is connected to a wiring 14 that is drawn from the underfloor space outside the floor outlet box 1 to the inside of the floor outlet box 1, i.e., the inside of the box body 11. The wiring 14 may be a LAN cable, an optical communication cable, a television antenna cable, a telephone line cable, etc., in addition to a power cord. It is preferable to draw the wiring 14 into the inside of the box body 11 by providing a wiring hole (not shown) at the end of the longitudinal direction of the box body 11 and introducing it by penetrating the heat insulating material in a straight line. In this way, the wiring 14 can be easily stretched and contracted inside the box body 11, and the outlet 13 can be installed at a suitable position inside the box body 11.

[0019] 2, the outlet 13 is attached to the interior elevation of the box 11 at a position parallel to and far from the wall 7. By attaching the outlet 13 in this position, the power cord 9 of an electrical appliance connected to the outlet 13 can be easily taken out of the floor outlet box 1 from a position close to the wall 7, i.e., into the room.

[0020] In this embodiment, the outlet 13 is provided with a plurality of connection ports 131 in a row for connecting the plug 91 of the power cord 9 of the electrical appliance. In FIG. 4, the connection ports 131 are four for power plugs. In this embodiment and the second embodiment described below, the power cord 9 of the electrical appliance, which is a cable, is connected via the plug 91 as an example of what is connected to the outlet 13. However, the cable is not limited to this, and can be applied to the connection of cables of general wired connection devices to which, for example, signal cables other than the power cord, such as LAN cables, optical communication cables, television antenna cables, telephone line cables, etc. are connected via plugs. That is, the outlet 13 is merely one example of the "connected part" in the present invention, and the above-mentioned sockets for connecting the signal cables, etc. are also included in the "connected part" in the present invention. The position of the connection port 131 is vertical when the outlet 13 is attached to the vertical surface inside the box body 11, as shown in FIG. 3. In this way, it is possible to prevent dust from entering the connection port 131 when the plug 91 is not connected. Furthermore, since the insertion direction of the plug 91 is horizontal when connected to the connection port 131, the internal height dimension of the box 11 can be made small.

[0021] 2 and 4, it is preferable that the size of the interior longitudinal direction of box 11 is larger than the longitudinal direction size of the outer dimensions of outlet 13, and more preferably, the interior longitudinal direction size of box 11 is at least twice the longitudinal direction size of the outer dimensions of outlet 13. In this way, the attachment position of outlet 13 inside box 11 can be freely selected within the range of the interior longitudinal direction size of box 11.

[0022] It is preferable that the outlet 13 is attached to the vertical surface inside the box 11 in a detachable manner. For this reason, it is preferable that the attachment surface of the outlet 13 to the box 11 has a magnet (not shown). As shown in FIG. 4, an iron plate 8 is attached to the vertical surface inside the box 11 to which the outlet 13 is attached, and as described above, a magnet (not shown) is attached to the attachment surface of the outlet 13 to the box 11. In order to attach the outlet 13 to the vertical surface inside the box 11 by a magnet, instead of the iron plate 8 in FIG. 4, a commercially available magnetic paint that attracts magnets may be applied to the vertical surface, or a commercially available magnetic sheet may be attached to the vertical surface. As another material for attaching the outlet 13 to the vertical surface inside the box 11 in a detachable manner, a hook-and-loop fastener or a suction cup may be used instead of a magnet.

[0023] As shown in FIG. 4, the length of the iron plate 8 is preferably greater than the length of the outlet 13 in the longitudinal direction and is generally equal to the length of the interior of the box 11 in the longitudinal direction. The iron plate 8 may be continuous with a gap provided in the middle inside the box 11. In this way, the outlet 13 can be attached at a suitable position selected from among the elevations inside the box 11 that are parallel to and far from the wall 7. Note that, in order to be able to select a suitable position from among the elevations inside the box 11 of the outlet 13, a hook-and-loop fastener or a suction cup may be used instead of the magnet as described above.

[0024] As shown in FIG. 2, a lid 12 is placed on the top of the box 11 so as to cover the entire opening at the top of the box 11. The outer shape of the box 12 is a long rectangular plate in a plan view, and is substantially the same as the shape in a plan view as the box 11. The lid 12 is provided with a wire-passing notch 121 on one of its long sides in a plan view, through which the power cord 9 of an electrical appliance can be passed. The lid 12 is usually placed on the box 11 when in use, with the wire-passing notch 121 positioned close to the wall 7. The number of wire-passing notches 121 per lid 12 may be one or more than two.

[0025] As shown in FIG. 2, it is preferable that the lid body 12 is divided into a lid body 12a having a wiring cutout 121 and a lid body 12b having no wiring cutout 121 for one box body 11. In this way, the position where the power cord 9 of the electrical appliance is taken out from the floor outlet box 1 can be changed at any time by interchanging the lid body 12a with the lid body 12b. In addition, the division of the lid body 12 into the lid body 12a and the lid body 12b may be such that either the lid body 12a or the lid body 12b is multiple, or both are multiple. In this way, there are even more options for changing the position where the power cord 9 of the electrical appliance is taken out from the floor outlet box 1. Second Embodiment

[0026] Fig. 5 is a perspective view showing the floor structure of a building according to a second embodiment of the present invention. In this embodiment, the floor 2 on which the floor outlet box is installed is the second floor floor 202. For convenience, the internal structure of the log wall in Fig. 5 is omitted, and only a part below the ceiling 3 on the first floor and a part above the second floor floor 202 are shown.

[0027] As shown in Fig. 5, the structure according to this embodiment is such that a floor outlet box 1, which includes an outlet 13 to which a power cord 9 of an electrical appliance is connected, a box body 11 having a rectangular shape in plan view for storing the outlet 13, and a removable lid body 12 installed in a manner covering the entire upper part of the box body 11, is installed on the edge of the second floor 202 in the room so that its upper surface is at approximately the same height as the upper surface of the second floor 202. Note that in this embodiment, the box body 11 is a rectangular parallelepiped having a plate-shaped bottom surface portion having a rectangular shape in plan view and a plate-shaped outer peripheral portion that is erected on the outer periphery of the bottom surface portion, and the entire upper surface portion is open, as in the first embodiment. Also, in Fig. 5, the floor 2, which is the second floor 202, is composed of a floor underlay plywood 22, which is a horizontal structural surface material, and a floor finishing material 21, such as a flooring material, laid on the floor underlay plywood 22, and a support material 4 is installed directly under the floor 2, as in the first embodiment.

[0028] Fig. 6 is a right side cross-sectional view showing a state in which the power cord 9 of an electrical appliance is removed in the second embodiment of the present invention. As shown in Figs. 5 and 6, in this embodiment, the edge of the second floor 202 is in contact with the wall 7 which is a log wall. Note that, although the wall 7 is an exterior wall in Figs. 5 and 6, it does not necessarily have to be an exterior wall as long as it is a log wall constructed by the log frame construction method, and it may be an interior partition wall. In any case, since the wall 7 is a log wall in this embodiment, it is a log wall constructed vertically and continuously directly above the log wall on the first floor.

[0029] As shown in FIG. 5, the box 11, which is an elongated rectangle in plan view, has one long side of its outer periphery, which corresponds to its long side in plan view, attached to the interior elevation of the wall 7, and the other long side attached to the elevation of the support material 4 provided directly below the second floor 202. In this embodiment, both long sides of the outer periphery in plan view are sandwiched between the wall 7 and the support material 4. Depending on the structure of the second floor 202, the box 11 may be attached to the wall 7 via an edge joist 231 or a spacer. In this case, the box 11 also has both long sides of the outer periphery in plan view sandwiched between the wall 7 and the support material 4 (however, with respect to the wall 7, via an edge joist 231 or a spacer).

[0030] The first floor ceiling 3 is stretched on the underside of the floor joists 23. The height dimension of the floor joists 23 is greater than the height dimension of the outer shape of the box body 11, and a space is created between the underside of the box body 11 and the upper surface of the first floor ceiling 3, so the box body 11 is not placed on the first floor ceiling 3. Third embodiment

[0031] Fig. 7 is a perspective view showing a floor structure of a building according to a third embodiment of the present invention. In this embodiment, the wall 7 is an exterior wall of a wooden frame construction, and the floor 2 on which the floor outlet box is installed is the second floor floor 202. For convenience, the wall 7 in Fig. 7 shows only a part below the ceiling 3 on the first floor and a part above the second floor floor 202.

[0032] As shown in Fig. 7, the structure according to this embodiment is such that a floor outlet box 1, which includes an outlet 13 to which a power cord 9 of an electrical appliance is connected, a box body 11 having a rectangular shape in plan view for storing the outlet 13, and a removable lid body 12 installed in a manner covering the entire upper part of the box body 11, is installed on the edge of the second floor 202 in the room so that its upper surface is at approximately the same height as the upper surface of the second floor 202. Note that in this embodiment, the box body 11 is a rectangular parallelepiped having a plate-shaped bottom surface part having a rectangular shape in plan view and a plate-shaped outer peripheral part erected on the outer periphery of the bottom surface part, and the entire upper surface part is open, as in the first and second embodiments. Also, in Fig. 7, the floor 2, which is the second floor 202, is composed of a floor underlay plywood 22, which is a horizontal structural surface material, and a floor finishing material 21, such as a flooring material, laid on the floor underlay plywood 22, and a support material 4 is installed directly under the floor 2, as in the first and second embodiments.

[0033] The second floor wall 72, which is a wall 7 erected on the edge of the second floor 202, is constructed on a girder 502, which is a horizontal member (meaning that defined in Article 2, Clause 3 of the Enforcement Order of the Building Standards Act) that is spanned over the pipe columns of the first floor. Note that, although the second floor wall 72 is an exterior wall in this embodiment, it does not necessarily have to be an exterior wall as long as it is a wall constructed directly on top of a horizontal member, and it may also be a second floor partition wall constructed on a second floor beam, which is a horizontal member.

[0034] In the present embodiment, the wall 7 is finished on the interior side by attaching one or more sheets of gypsum board 703, which is a wall base material, to the interior side surfaces of the pillars 701 and studs 702, and pasting wallpaper 704, which is a finishing material, on the interior side of the gypsum board 703. In order to adjust the thickness of the gypsum board, it is preferable that one of the long sides of the outer periphery, which corresponds to the long side in plan view of the box body 11, is attached to the interior side elevation of the girth 502, which is a cross member, via a spacer 111. That is, in FIG. 7, both long sides of the outer periphery in plan view are sandwiched between the girth 502 via the spacer 111 on one side and the support member 4 which also serves as one of the joists 23 on the other side.

[0035] The first floor ceiling 3 is stretched below the second floor 202. A rod-shaped hanging beam 303 is attached vertically to the side of the joist 23 supporting the second floor 202, a rod-shaped siding support 302 is attached horizontally to the lower end of the hanging beam 303, a rod-shaped siding support 302 is attached horizontally to the lower surface of the siding support 302 so as to be perpendicular to the siding support 302, and the first floor ceiling 3 is attached to the lower surface of the siding support 301. In addition, in the wooden frame structure which is the building of this embodiment, the hanging beam 303 may be attached to a hanging beam support (not shown) which is a horizontal member erected between the second floor 202 and the first floor ceiling 3, instead of the side of the joist 23. In either case, a space is generated between the lower surface of the box body 11 and the upper surface of the first floor ceiling 3, so that the box body 11 is not placed on the first floor ceiling 3.

[0036] 8 is an enlarged front cross-sectional view showing a state in which the outlet 13 is attached inside the box 11 using the guide rail G and the carriage C in the floor structure of the building according to each embodiment of the present invention, and an enlarged front end view of the guide rail G and the carriage C. In the drawings of (a), (a'), (b), (b'), (c), and (c'), (a) is an enlarged front cross-sectional view when the cross-sectional shape of the guide rail G is approximately C-shaped, (a') is an enlarged front end view of the guide rail G and the carriage C in that case, (b) is an enlarged front cross-sectional view when the cross-sectional shape of the guide rail G is approximately dish-shaped lying on its side, (b') is an enlarged front end view of the guide rail G and the carriage C in that case, (c) is an enlarged front cross-sectional view when the cross-sectional shape of the guide rail G is approximately U-shaped, and (c') is an enlarged front end view of the guide rail G and the carriage C in that case, respectively. Regardless of the shape of the guide rail G, the guide rail G is attached to one of the internal vertical surfaces of the box body 11 that is parallel to and far from the wall 7, and the carriage C is attached to the surface opposite the connection port 131 of the outlet 13.

[0037] The length of the guide rail G is preferably greater than the longitudinal length of the outlet 13 and is generally equal to the longitudinal length of the interior of the box 11. This allows the outlet 13 to slide on the guide rail G within the elevational surface inside the box 11 that is parallel to and far from the wall 7, and to move as needed to find a suitable position. [Industrial Applicability]

[0038] Since the present invention is configured as described above, it is possible to provide a floor structure of a building having a floor outlet box, which ensures a high ceiling while the cord connected thereto does not impede walking in the room, does not restrict the arrangement of furniture, and maintains the beauty of the room. Furthermore, the present invention allows the position of the cord of an electrical appliance to be easily changed without construction while living within the size of the floor outlet box, and increases the freedom of arrangement of furniture and electrical appliances in the room. In addition, in the case of a log house built by a log frame construction method, it was almost impossible to relocate or add a wall outlet installed in a log wall. Therefore, by replacing the wall outlet installed in the log wall with the floor outlet box of the present invention, the burden of electrical work is greatly reduced. Furthermore, by configuring the box body 11 to be supported only by the foundation 5 or horizontal member and the support material 4 installed directly under the floor 2, the present invention can be easily applied to buildings that do not have a double floor structure, and the freedom of design can be increased. [Explanation of symbols]

[0039] 1 Outlet box 11 Box body 12 Lid 12a Lid body a 12b Lid body b 121 Wire cutout 13. Outlet 14 Wiring 2 Beds 201 1st floor 202 2nd floor 21 Floor finishing materials 22 Flooring plywood 3. Ceiling 4 Support material 5 Foundation 6 Basics 7. Wall 8 Iron Plate 9. Power cords for electrical appliances

Claims

1. a floor structure of a building in which a floor outlet box is installed, the floor structure comprising: a box body whose entire top surface is an opening and which is an elongated rectangle in plan view; a removable lid body installed to cover the entire opening of the top surface of the box body; and a connection portion to which a cord of a wired connection device such as an electrical appliance is connected, wherein the height of the top surface of the lid body approximately matches the height of the floor surface, the position of one of the long sides of the box body in plan view approximately matches the edge of the floor inside the room, one side of the long sides of the lid body in plan view facing the edge is provided with one or more wiring notches, the connection portion is attached to one of the internal elevations of the box body at a position farthest from the edge, and the direction in which the cord of the electrical appliance is inserted into the connection portion is from the outside to the inside of the room.

2. A floor structure of a building in which a floor outlet box is installed, the floor outlet box comprising a box body whose entire top surface is an opening, a removable lid body installed in a manner that covers the entire opening on the top surface of the box body, and a connection portion to which a cord of a wired connection device such as an electrical appliance is connected, wherein the height of the top surface of the lid body approximately matches the height of the floor surface, the position of one of the long sides of the box body when viewed in plan approximately matches the edge of the floor inside the room, the lid body is divided into multiple parts in the longitudinal direction, at least one of the divided lid bodies has at least one wiring notch on one side of the long side when viewed in plan that is closer to the edge, the connection portion is attached to one of the internal vertical surfaces of the box body that is farthest from the edge, and the direction in which the cord of the electrical appliance is inserted into the connection portion is from the outside to the inside of the room.

3. 3. The floor structure of a building as described in claim 1 or 2, characterized in that one of the outer elevations of the long sides of the box body when viewed in plan is in contact with the side of the foundation or cross member directly or via a spacer or support material.

4. 4. The floor structure of a building according to claim 3, wherein the box body is supported only by the foundation or the cross member and a support member installed directly below the floor.

5. 3. The floor structure of a building as described in claim 1 or 2, characterized in that one of the outer elevations of the long sides of the box body in a plan view is in contact directly or via a spacer or support material with the interior surface of a log wall constructed by a log frame construction method.

6. 6. The floor structure of a building according to claim 5, wherein the box body is supported only by the indoor surface of the log wall and a support material installed directly below the floor.

7. 3. The floor structure of a building according to claim 1, wherein the connection portion is attached to the interior elevation of the box body in a detachable manner by a magnet, a hook-and-loop fastener or a suction cup.

8. The floor structure of a building as described in claim 1 or 2, characterized in that the connection part is attached to the internal vertical surface of the box body by a guide rail fixed horizontally to the internal vertical surface of the box body and a carriage fixed to the surface opposite the connection port of the connection part so that the connection part can be attached to the guide rail, and the connection part is movable along the guide rail inside the box body.

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