Floor structure of a building with a 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 install wired devices such as electrical appliances that are connected to power and signal cables on desks or storage furniture that are placed against a wall, so indoor outlets to which power cables and other devices are connected are generally installed on the wall as wall-mounted outlets.

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

[0004] Floor outlets, which are installed on the floor, can be relocated or added even after the log wall is constructed. However, floor outlets require the cords of electrical appliances and other devices to crawl along the floor, creating a problem of obstructing indoor walking. To prevent cords from obstructing walking, methods exist for freely positioning outlets using a double-floor structure (so-called free-access floors) (see, for example, Patent Document 2), but the double-floor structure reduces ceiling height and increases construction costs. Particularly in the case of log houses, which are constructed using log framing, adopting a double-floor structure and ensuring ceiling height would require an increase in the number of log layers used to construct the log wall, making this unacceptable in terms of construction costs. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2018-200511 A [Patent Document 2] JP 2005-312101 A Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention was invented in consideration of the above-mentioned conventional problems, and aims to provide a floor structure for a building with a floor outlet box that ensures ceiling height while preventing cords connected to it from interfering with indoor walking, does not restrict furniture placement, and maintains the aesthetic appearance 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 has an upper surface All or almost all of but Opened The box body and the top surface of the box opening a detachable lid body that is installed in a manner that covers the The connecting part to which the cord of a wired device such as an electrical appliance is connected. A floor structure of a building in which a floor outlet box comprising: The height of the top surface of the lid is approximately the same as the height of the floor surface, of the box Part of the outer surface is the interior surface of the wall in plan view. It almost matches, The flat surface of the lid visual periphery has one or more wire-passing notches, The connected portion is an elevation of the interior of the box body. The interior side of the wall far from surface It is attached to Electrical appliances to the connected part Wired connection devices such as The cord is inserted from the outside to the inside of the room. [Effects of the Invention]

[0008] Because the present invention is configured as described above, it is possible to provide a floor outlet box structure that ensures ceiling height while the cords connected thereto do not interfere with walking inside the room, does not restrict furniture placement, maintains the aesthetic appearance of the room, and is particularly suitable for use in log houses built using the log frame construction method, and makes it easy to add or relocate outlets. [Brief explanation of the drawings]

[0009] [Figure 1] 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. [Figure 2] FIG. 2 is a partially cutaway plan view of the cover of the first embodiment. [Figure 3] FIG. [Figure 4] FIG. 2 is a right side cross-sectional view of the electric appliance with the power cord removed. [Figure 5] FIG. 10 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. 10 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 and 1B are enlarged cross-sectional views from the front showing the state in which a guide rail and a carriage are used to attach a receptacle to the inside of a box according to each embodiment of the present invention, and enlarged end views of the guide rail and the carriage. DETAILED DESCRIPTION OF THE INVENTION

[0010] The floor structure of a building according to an embodiment will be described below with reference to the drawings. (First embodiment)

[0011] Fig. 1 is a perspective view showing the floor structure of a building according to a first embodiment of the present invention, Fig. 2 is a plan view with a lid partially 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 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 first floor floor 201, and the wall 7 is a log wall constructed by log construction. 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 portion 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 a power cord 9 of an electrical appliance is connected, a box body 11 that is elongated in plan view and that houses the outlet 13, and a removable lid body 12 that is installed to cover the entire top of the box body 11 is installed on the edge of the first floor 201 inside the room so that its upper surface is approximately the same height as the top surface of the first floor 201, and the box body 11 is a rectangular prism having a plate-shaped bottom surface that is elongated in plan view and an outer periphery that is erected in the shape of a plate on the periphery of the bottom surface, and the entire top surface 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) that is approximately the same as the planar external 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 top of the box body 11 so as to cover the entire top of the box body 11, and the height of the top surface of the lid body 12 is approximately the same as the height of the top surface of the first floor 201.

[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 subfloor plywood 22, which is a horizontal structural surface material, and floor finishing materials 21, such as flooring materials, laid on top of the subfloor plywood 22.

[0015] As shown in Figure 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. In this embodiment, the wall 7 is an exterior wall, but it does not necessarily have to be an exterior wall as long as it is a log wall constructed using 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 to the interior elevation of the base 5, and the other long side of the outer periphery attached to the elevation of a support member 4 provided directly below the first-floor floor 201. As shown in FIGS. 1 and 3 , this support member 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 member 4, which also serves as one of the joists 23. Note that in this embodiment and the second and third embodiments described below, the support member 4 has been described as also serving as the joist 23, but the form of the support member 4 is not limited thereto. For example, the present invention can be applied to a case where the support member 4 does not also serve as the joist 23 but is provided separately from the joist 23 directly below the floor 2, or to a structure in which the joist 23 is not required by increasing the horizontal rigidity of the floor 2 (a 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 at both long sides of the outer periphery in plan view (however, the base 5 is sandwiched via the edge joists 231 or spacers).

[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 underfloor plywood 22 so as to fill the entire lower area of ​​the first floor 201. In this case, the heat insulating layer is installed without gaps on the underside and outer peripheral surface of the floor outlet box 1 so as not to leave any missing parts even at the position of the floor outlet box 1.

[0018] FIG. 4 is a right-side cross-sectional view showing the first embodiment of the present invention with the power cord 9 of the electrical appliance removed. For convenience, FIG. 4 shows only a portion of the wall 7, which is a log wall, 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 pulled from the underfloor space outside the floor outlet box 1 into the interior of the floor outlet box 1, i.e., into the box 11. The wiring 14 may be a power cord, a LAN cable, an optical communication cable, a television antenna cable, a telephone cable, or the like. The wiring 14 is preferably pulled into the box 11 by providing a wiring hole (not shown) at the longitudinal end of the box 11 and passing the wiring 14 straight through the insulation. This allows the wiring 14 to easily expand and contract within the box 11, allowing the outlet 13 to be installed at a desired location within the box 11.

[0019] As shown in Figure 2, the outlet 13 is attached to the interior of the box 11 on one of the interior elevations of the box 11 that is 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 has multiple connection ports 131 arranged in a horizontal row for connecting plugs 91 of the power cord 9 of an electrical appliance. In FIG. 4 , four connection ports 131 are shown for power plugs. In this embodiment and the second embodiment described below, the power cord 9 of an 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. For example, the present invention can be applied to connecting cables for wired devices in general, including signal cables other than power cords, such as LAN cables, optical communication cables, television antenna cables, and telephone line cables, via plugs. In other words, the outlet 13 is merely one example of a "connectable part" in the present invention, and the term "connectable part" also includes receptacles for connecting the above-mentioned signal cables. The connection ports 131 are positioned vertically when the outlet 13 is attached to the interior elevation of the box 11, as shown in FIG. 3 . This prevents dust from entering the connection ports 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 small.

[0021] 2 and 4, it is preferable that the longitudinal size of the interior of box 11 is larger than the longitudinal size of the outer dimensions of outlet 13, and more preferably, the longitudinal size of the interior of box 11 is at least twice the longitudinal size of the outer dimensions of outlet 13. This makes it possible to freely select the installation position of outlet 13 inside box 11 within the range of the longitudinal size of the interior of box 11.

[0022] It is preferable that the outlet 13 be attached to the interior vertical surface of 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 interior vertical surface of 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. To attach the outlet 13 to the interior vertical surface of the box 11 using 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 an alternative material for detachably attaching the outlet 13 to the interior vertical surface of the box 11, 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 iron plate 8 is preferably greater than the longitudinal length of outlet 13 and is approximately equal to the overall longitudinal length of the interior of box 11. Iron plate 8 may be continuous with a gap in the middle inside box 11. This allows outlet 13 to be attached at a suitable position on the elevation of the interior of box 11 that is parallel to and distant from wall 7. Note that, in order to allow outlet 13 to be attached at a suitable position on the elevation of the interior of box 11, 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 top of the box 11 so as to cover the entire opening at the top of the box 11. The lid 12 has an outer shape of a rectangular plate in a plan view, which is substantially the same as the shape of the box 11 in a plan view. The lid 12 has a wiring cutout 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 in use so that the wiring cutout 121 is located close to the wall 7. There may be one or more wiring cutouts 121 per lid 12.

[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 not having the 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 and the lid body 12b. Furthermore, the division of the lid body 12 into the lid body 12a and the lid body 12b may be such that there are multiple lid bodies 12a and 12b, or there may be multiple lid bodies 12a and 12b. 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] Figure 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 Figure 5 is omitted, and only a portion below the first-floor ceiling 3 and a portion above the second-floor floor 202 are shown.

[0027] As shown in FIG. 5 , the structure of this embodiment includes a floor outlet box 1 including an outlet 13 to which an electrical appliance power cord 9 is connected, a rectangular box 11 that houses the outlet 13, and a removable lid 12 that covers the entire top of the box 11. The floor outlet box 1 is installed on the edge of the second floor 202 in the room so that its top surface is approximately flush with the top surface of the second floor 202. As in the first embodiment, the box 11 in this embodiment is a rectangular parallelepiped having a plate-shaped bottom surface that is rectangular in plan view and a plate-shaped outer periphery that extends from the bottom surface, and the entire top surface is open. Also, as in the first embodiment, the floor 2, which is the second floor 202 in FIG. 5 , is composed of a horizontal structural surface material, a subfloor plywood 22, and a floor finishing material 21, such as flooring, laid on the subfloor plywood 22. As in the first embodiment, a support member 4 is installed directly below the floor 2.

[0028] Fig. 6 is a right side cross-sectional view showing a state in which the power cord 9 of an electrical appliance has been disconnected in a 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 wall 7, which is a log wall. Note that, although wall 7 is shown as 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 using the log frame construction method, and it may also be an interior partition wall. In any case, since 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 , 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 to the interior elevation of wall 7, and the other long side attached to the elevation of support member 4 provided directly below second-floor floor 202. In this embodiment, both long sides of the outer periphery in plan view are sandwiched between wall 7 and support member 4. Depending on the structure of second-floor floor 202, box 11 may be attached to wall 7 via edge joists 231 or spacers. In this case, box 11 is also sandwiched between wall 7 and support member 4 (however, with respect to wall 7, both long sides in plan view are sandwiched between wall 7 and support member 4 (however, with respect to wall 7, via edge joists 231 or spacers).

[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 the 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 only shows a portion below the first-floor ceiling 3 and a portion above the second-floor floor 202.

[0032] As shown in FIG. 7 , the structure of this embodiment includes a floor outlet box 1 including an outlet 13 to which a power cord 9 of an electrical appliance is connected, a rectangular box 11 that houses the outlet 13, and a removable lid 12 that covers the entire top of the box 11. The floor outlet box 1 is installed on the edge of the second floor 202 in the room so that its top surface is approximately flush with the top surface of the second floor 202. As with the first and second embodiments, the box 11 in this embodiment is a rectangular parallelepiped having a plate-shaped bottom surface that is rectangular in plan view and a plate-shaped outer periphery that extends from the bottom surface, and the entire top surface is open. Also, as with the first and second embodiments, the floor 2, which is the second floor 202 in FIG. 7 , is composed of a horizontal structural surface material, a subfloor plywood 22, and a floor finishing material 21, such as flooring, laid on the subfloor plywood 22. As with the first and second embodiments, a support member 4 is installed directly below the floor 2.

[0033] The second-floor wall 72, which is a wall 7 erected on the edge of the second-floor floor 202, is constructed on girths 502, which are horizontal members (defined in Article 2, Item 3 of the Enforcement Order of the Building Standards Act) that are laid 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 above a horizontal member, and it may also be a second-floor partition wall constructed on the second-floor floor beams, which are horizontal members.

[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 serves as a wall base material, to the interior-facing surfaces of the pillars 701 and studs 702, and then pasting wallpaper 704, which serves as a finishing material, on the interior-facing surface of the gypsum board 703. To adjust for the thickness of the gypsum board, it is preferable that one of the long sides of the outer periphery of the box body 11, which corresponds to the long side in plan view, is attached to the interior-facing elevation of the girth 502, which serves as 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 floor joists 23, on the other side.

[0035] A first-floor ceiling 3 is stretched below the second-floor floor 202. Rod-shaped hanging beams 303 are attached vertically to the sides of the floor joists 23 supporting the second-floor floor 202, and rod-shaped joist supports 302 are attached horizontally to the lower ends of the hanging beams 303. Rod-shaped joists 301 are attached horizontally to the underside of the joist supports 302, perpendicular to the joist supports 302, and the first-floor ceiling 3 is attached to the underside of the joist supports 301. In the wooden frame structure that is the building of this embodiment, the hanging beams 303 may be attached to a hanging beam support (not shown), which is a horizontal member erected between the second-floor floor 202 and the first-floor ceiling 3, rather than to the sides of the floor joists 23. In either case, a space is created between the underside of the box body 11 and the top 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 a receptacle 13 is attached inside a box 11 using a guide rail G and a carriage C in the floor structure of a 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 (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 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 when laid on its side, (b') is an enlarged front end view of the guide rail G and 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 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 guide rail G is preferably greater than the longitudinal length of outlet 13 and is approximately equal to the overall longitudinal length of the interior of box 11. This allows outlet 13 to slide on guide rail G within the elevational surface of the interior of box 11 that is parallel to and far from wall 7, and to move as needed to find a suitable position. [Industrial Applicability]

[0038] The present invention, as configured above, provides a floor structure for a building with a floor outlet box that maintains ceiling height while preventing cords from interfering with indoor walking and restricting furniture placement, thereby maintaining the aesthetics of the room. Furthermore, the present invention allows for easy repositioning of electrical appliance cords without requiring construction work while remaining within the size of the floor outlet box, thereby increasing the flexibility of indoor furniture and electrical appliance placement. In addition, in log houses constructed using log frame construction, it has traditionally been nearly impossible to relocate or add wall outlets installed in log walls. Replacing conventional wall outlets installed in log walls with the floor outlet box of the present invention significantly reduces the burden of electrical work. Furthermore, by configuring the box body 11 to be supported only by the foundation 5 or cross members and the support member 4 installed directly below the floor 2, the present invention can be easily applied to buildings without a double floor structure, thereby increasing the design flexibility. [Explanation of symbols]

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

Claims

[Claim 1] a box body whose entire or almost entire top surface is open; a removable lid installed to cover an opening on the top surface of the box; The connecting part to which the cord of a wired device such as an electrical appliance is connected. A floor structure of a building in which a floor outlet box comprising: The height of the top surface of the lid is approximately the same as the height of the floor surface, A part of the outer peripheral surface of the box body is substantially aligned with the surface of the wall facing the room in a plan view, The lid body has one or more wire-passing notches on its periphery in a plan view, the connected portion is attached to a surface of the wall on the interior elevation of the box body, the surface being far from the interior surface of the wall, The cord of a wired device such as an electrical appliance is inserted into the connection part in a direction from the outside of the room to the inside of the room. A floor structure of a building characterized by:

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