Wiring extension units, wiring structures, and buildings

Abstract

To simplify wiring of cables while preventing unnecessary processing to a building structure and improving an appearance by preventing the cables from being exposed on a surface when wiring the cables.SOLUTION: A wiring expansion unit 10 attached to a wall surface and covered with a surface material 20 comprises a unit body, a storage portion 15 storing cables 5 etc., and an open portion 16 through which the cables 5 pass. The unit body comprises: a lower frame 11; side frames 12 each having a lower end provided at each of both longitudinal ends of the lower frame 11; and an intermediate frame 13 located between both side frames 12, being parallel to both side frames 12, and having a lower end provided on the lower frame 11. The storage portion 15 is a space surrounded with the lower frame 11, both side frames 12, and the intermediate frame 13. The open portion 16 is located between upper ends of both side frames 12 and an upper end of the intermediate frame 13.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a wiring blowing unit, a wiring structure, and a building.

Background Art

[0002] Conventionally, there has been known a technique for wiring cables such as electric wires and communication lines while hiding them so as not to be exposed on the surface, across between a lower floor and an upper floor. For example, in Patent Document 1, in a building constructed by a so-called panel method, a pipe body passing through a floor panel is bridged between the upper end of a wall panel on the lower floor and the lower end of a wall panel on the upper floor, and cables extending between the lower floor and the upper floor wall panels are passed through the pipe body for wiring.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The conventional wiring structure can suppress unnecessary hole processing and groove processing for wiring on the wall panels and floor panels of the upper and lower floors. Further, it is suitable when passing cables across between the wall on the lower floor and the wall on the upper floor located immediately above it. However, such a wiring structure is difficult to adopt when passing cables not between the wall on the lower floor and the wall on the upper floor located immediately above it, but toward the walls at other positions on the upper floor, the floor on the upper floor, or the walls at other positions on the lower floor.

[0005] This invention has been made in view of the above circumstances, and its objective is to enable easy cable wiring while suppressing unnecessary processing of building structures and improving the appearance by preventing cables from being exposed on the surface. [Means for solving the problem]

[0006] The invention described in claim 1 is a wiring furring unit 10 that is attached to the surface of a building wall and covered by a facing material 20, as shown in Figures 1 to 5, for example, The unit body is composed of multiple frame members 11, 12, 13, The unit body is surrounded by the multiple frame members 11, 12, 13, and includes a housing section 15 in which cables 5 and wiring devices 4 are housed, The unit body is provided with an opening 16 formed at the upper end through which the cables 5 pass, The unit body is, Lower frame 11 and, The lower end is the side frame 12 provided at each of the longitudinal ends of the lower frame 11, It is located between the two aforementioned side frames 12 and runs parallel to both of the aforementioned side frames 12, and its lower end is made up of an intermediate frame 13 provided on the lower frame 11. The aforementioned housing section 15 is a space enclosed by the lower frame 11, both side frames 12, and the intermediate frame 13. The opening 16 is characterized by being located between the upper ends of both side frames 12 and the upper end of the intermediate frame 13.

[0007] According to the invention described in claim 1, the space enclosed by the lower frame 11, both side frames 12, and the intermediate frame 13 in the unit body becomes a storage section 15 for accommodating cables 5 and wiring devices 4, etc. Therefore, by simply placing the cables 5 and wiring devices 4 into the storage section 15, the wiring of the cables 5 and the installation of the wiring devices 4 can be easily performed. Furthermore, since the space between the upper ends of both side frames 12 and the upper end of the intermediate frame 13 in the unit body is an open section 16 through which the cables 5 pass, wiring between the inside and outside of the housing section 15 of the wiring extension unit 10 can be easily performed simply by passing the cables 5 through the open section 16. Furthermore, since the wiring extension unit 10 is attached to the surface of the building's wall, it is possible to avoid unnecessary modifications to the building's structure for the wiring of cables 5 and the installation of wiring devices 4. Furthermore, since the wiring extension unit 10 is covered by the facing material 20, the cables 5 and wiring devices 4 housed in the housing section 15 are not exposed on the surface, thus improving the appearance.

[0008] The invention described in claim 2 is, for example, as shown in Figure 4, in the wiring extension unit 10 described in claim 1, The unit body is equipped with a plurality of temporary fastening members 14 that are detachably temporarily fastened to it, The plurality of temporary fastening members 14 are characterized in that they are provided between both side frames 12 and the intermediate frame 13.

[0009] According to the invention described in claim 2, the multiple temporary fastening members 14 that are detachably temporarily fastened to the unit body are provided between both side frames 12 and the intermediate frame 13, so that both side frames 12 and the intermediate frame 13 are less likely to swing. This makes it easier to handle the wiring extension unit 10 during transportation and installation work, and contributes to simplifying the wiring of cables 5 and the installation of wiring devices 4.

[0010] The invention described in claim 3 is a wiring structure in which, for example, as shown in Figures 2, 3, and 5, the wiring extension unit 10 described in claim 1 or 2 is attached to the surface of the wall of the building. The cables 5 are characterized in that they are housed in the housing section 15 and are routed through the opening section 16.

[0011] According to the invention described in claim 3, since the cables 5 are housed in the housing section 15 and routed through the opening section 16, the wiring of the cables 5 and the installation of the wiring devices 4 can be easily performed simply by placing the cables 5 and wiring devices 4 inside the housing section 15. Moreover, the wiring between the inside and outside of the housing section 15 of the wiring extension unit 10 can be easily performed simply by passing the cables 5 through the opening section 16. Furthermore, since the wiring extension unit 10 is attached to the surface of the building wall, it is possible to suppress unnecessary processing of the building structure for the wiring of the cables 5 and the installation of the wiring devices 4.

[0012] The invention described in claim 4 is, for example, as shown in Figure 3, in the wiring structure described in claim 3, The wiring extension unit 10 is characterized in that a surface material 20 is attached to its surface, thereby closing off the housing section 15.

[0013] According to the invention described in claim 4, a facing material 20 is attached to the surface of the wiring extension unit 10, and the housing section 15 is closed off, so that the cables 5 and wiring devices 4 housed in the housing section 15 are not exposed on the surface, thereby improving the appearance.

[0014] The invention described in claim 5 is, for example, as shown in Figures 2, 3, and 5, in the wiring structure described in claim 3, The upper end of the wiring extension unit 10 is located above the ceiling 21 of the room in the building, and the cables 5 are routed between the housing 15 and the space above the ceiling of the room through the opening 16.

[0015] According to the invention described in claim 5, the upper end of the wiring boosting unit 10 is located above the ceiling 21 of the room in the building, and the cables 5 are wired between the accommodation part 15 and the ceiling back of the room through the opening part 16. Therefore, the cables 5 can be wired between the ceiling back and the accommodation part 15 so that the cables 5 are not exposed on the surface, improving the appearance. Furthermore, since the cables 5 can be wired to a desired position through the ceiling back, the wiring of the cables 5 can be easily performed.

[0016] The invention described in claim 6 is a building, and as shown in FIGS. 2 and 5 for example, the wiring boosting unit 10 described in claim 1 or 2 and the first additional heat insulation panel 22 set to the same thickness dimension as the wiring boosting unit 10 are attached to the surface of the wall in a state of being arranged side by side with each other.

[0017] According to the invention described in claim 6, the wiring boosting unit 10 and the first additional heat insulation panel 22 set to the same thickness dimension as the wiring boosting unit 10 are attached to the surface of the wall in a state of being arranged side by side with each other. Therefore, the thickness of the wall of the building can be made uniform. Thereby, the step generated on the surface of the wall by the wiring boosting unit 10 can be eliminated and the appearance is improved. Moreover, the heat insulation property of the wall of the building can be improved by the first additional heat insulation panel 22. In addition, the cables 5 and the wiring appliances 4 can be accommodated in the accommodation part 15 of the wiring boosting unit 10, and the wiring of the cables 5 and the installation of the wiring appliances 4 can be easily performed.

[0018] The invention described in claim 7 is, as shown in FIGS. 2 and 5 for example, in the building described in claim 6, the accommodation part 15 is filled with a second additional heat insulation panel 17 set to the same thickness dimension as the wiring boosting unit 10.

[0019] According to the invention described in claim 7, since the accommodation part 15 is filled with the second additional heat insulation panel 17 having the same thickness dimension as the wiring bulge unit 10, the heat insulation property of the part of the building wall where the wiring bulge unit 10 is attached can also be improved.

Effect of the Invention

[0020] According to the present invention, when wiring cables, unnecessary processing on the building structure can be suppressed, the appearance can be improved by preventing the cables from being exposed on the surface, and the wiring of the cables can be easily performed.

Brief Description of the Drawings

[0021] [Figure 1] It is a perspective view showing the basic structure of a building wooden panel. [Figure 2] It is a perspective view showing a state where the wiring bulge unit is provided on the wall of a building. [Figure 3] It is a side sectional view showing a state where the wiring bulge unit is provided on the wall of a building. [Figure 4] It is a perspective view showing the wiring bulge unit. [Figure 5] It is a perspective view showing a modified example of a state where the wiring bulge unit is provided on the wall of a building.

Embodiments for Carrying Out the Invention

[0022] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are technically preferably limited in various ways for carrying out the present invention, but the technical scope of the present invention is not limited to the following embodiments and illustrated examples. The directions in the following embodiments and illustrated examples are set only for the convenience of explanation.

[0023] In FIG. 1 and the like, reference numeral 1 indicates a building wooden panel for forming components such as walls, floors, and roofs in a building when constructing a building such as a house by the panel method. The building described in this embodiment is constructed using the panel construction method as described above. The panel construction method is a method in which building components such as walls, floors, and roofs are pre-fabricated into panels (architectural wood panels 1) in a factory, and these panels are assembled at the construction site. However, it is not limited to this, and the building in this embodiment may also be constructed using conventional post-and-beam construction methods, wall-type construction methods, wooden structures, steel structures, reinforced concrete structures, etc.

[0024] In this embodiment, the wooden building panel 1 is constructed by assembling vertical and horizontal frame members Fm in a rectangular shape, and by assembling auxiliary cross members Cp vertically and horizontally inside the rectangular frame to form a frame body F. A surface material Bd such as plywood is attached to one or both sides of this frame body F, resulting in a hollow internal structure. Furthermore, an insulating material In1 such as glass wool or rock wool is packed into the hollow internal portion. In Figure 1, the wooden building panel 1 has facing material Bd attached to both sides of the frame F, and it constitutes a wall among the building's components. In the case of wooden building panels 2, which constitute floors and roofs, facing material Bd is attached only to the top surface of the frame F (see Figure 3).

[0025] The walls of a building are formed by arranging multiple wooden building panels 1 adjacent to each other, as shown in Figure 2, for example. The wooden building panels 1 are joined together by adhesives, screws, or other fasteners. These building walls are erected on wooden building panels 2 that are used for the floor.

[0026] If the building has multiple floors, as shown in Figure 3, the wooden building panels 2 that constitute the upper floor are placed on the upper end surface of the building's walls. In Figure 3, reference numeral 3 denotes a half-joist (half-sill in the case of the first floor), and the side end of the wooden building panel 2 for the upper floor and the half-joist 3 are placed on the upper end surface of the wooden building panel 1 that constitutes the lower floor wall of the building. Above the wooden building panels 1 that constitute the walls of the lower floor of the building, there are wooden building panels 1 that constitute the walls of the upper floor, and these wooden building panels 1 for the upper floor walls are positioned to span the side ends of the wooden building panels 2 for the upper floor floor and the half-joint gap 3. Note that the walls on the upper and lower floors of the building shown in Figure 3 are exterior walls facing the outdoors, but the design is not limited to these; interior walls are also acceptable.

[0027] Since the walls of a building are equipped with fixtures 4 (wiring devices 4) such as switches and outlets, it becomes necessary to run cables 5 such as electrical wires and communication lines in various places within the building. Furthermore, when doing so, the cables 5 must be routed in a way that they are not exposed on the surface of the wall. Therefore, in this embodiment, a wiring extension unit 10 is attached to the surface of the building wall.

[0028] The wiring extension unit 10 comprises a wooden unit body composed of multiple frame members 11, 12, and 13, a housing section 15 surrounded by the multiple frame members 11, 12, and 13 that make up the unit body, which houses cables 5 and wiring devices 4, and an opening 16 formed at the upper end of the unit body through which the cables 5 pass.

[0029] The unit body is a frame-like structure formed in a roughly mountain or E-shape, comprising a lower frame 11 which is a horizontal frame, left and right side frames 12 which are vertical frames, and an intermediate frame 13 which is a vertical frame. In other words, it consists of one horizontal frame, the lower frame 11, and three vertical frames 12, 13. The unit body, consisting of these multiple frame members 11, 12, and 13, is adhesively fixed to the surface material Bd of the building wood panel 1. Alternatively, fasteners such as screws may be used instead of adhesive, or adhesive and fasteners may be used in combination.

[0030] The lower frame 11 is placed on the upper surface of the floor-type wooden panel 2, similar to the wall-type wooden panel 1. The lower frame 11 is also adhesively fixed to the surface material Bd of the floor-type wooden panel 2. Alternatively, fasteners such as screws may be used instead of adhesive, or adhesive and fasteners may be used in combination.

[0031] The left and right side frames 12 are integrally provided at both ends in the longitudinal direction of the lower frame 11. In this embodiment, the left and right side frames 12 are placed on the upper surface of the lower frame 11, but this is not the only configuration; the lower frame 11 may be provided spanning between the lower ends of the left and right side frames 12.

[0032] The intermediate frame 13 is placed on the upper surface of the lower frame 11 and is integrally provided in the longitudinal center of the lower frame 11. In this embodiment, the intermediate frame 13 is located midway between the left and right side frames 12. In other words, the intermediate frame 13 is located in the center of the entire wiring extension unit 10. The distance from the intermediate frame 13 to the left side frame 12 and the distance from the intermediate frame 13 to the right side frame 12 are approximately equal. However, this is not the only option, and the intermediate frame 13 may be positioned closer to either the left or right side frame 12.

[0033] The left and right side frames 12 and the intermediate frame 13 are set to have the same height at their upper ends. In this embodiment, the upper ends of these vertical frames 12 and 13 are provided at approximately the same height as the upper end of the building wood panel 1, and are in contact with the lower surface of the building wood panel 2 for the upper floor.

[0034] The thickness of the unit body (i.e., the wiring extension unit 10) is set to be smaller than the thickness of the building wood panel 1, making it thin. In other words, if the thickness is made larger than necessary, the thickness of the building walls will increase, making the rooms smaller. Therefore, the thickness of the unit body is set to be sufficient to allow cables 5 to be routed and wiring devices 4 to be embedded.

[0035] Since the unit body does not have an upper frame which is a horizontal frame, the upper end portion is in an open state. That is, the space between the upper end portions of the left and right side frames 12 and the upper end portion of the intermediate frame 13 is the above-mentioned open portion 16.

[0036] Also, no horizontal cross members are provided in the middle part in the vertical direction of the unit body. Therefore, the unit body is a region (space) where wiring of the cables 5 or installation of the wiring devices 4 is possible from the position of the lower frame 11 to the upper end portion. That is, this region is the accommodation portion 15 where the cables 5, wiring devices 4, etc. are accommodated.

[0037] Note that since the upper end portion of the unit body of the wiring blowing unit 10 is in an open state as described above, the upper end portions of the left and right side frames 12 and the intermediate frame 13 are in a state where they are more likely to swing compared to the lower end portion. And when it is in a state where it is likely to swing, of course, it is difficult to transport. Therefore, during transportation, as shown in FIG. 4, the temporary fixing material 14 is bridged between the left and right side frames 12 and the intermediate frame 13 and temporarily fixed. That is, the wiring blowing unit 10 includes a plurality of temporary fixing materials 14 that are detachable from the left and right side frames 12 and the intermediate frame 13. And the plurality of temporary fixing materials 14 are provided at least bridged between the upper end portions of the left and right side frames 12 and the intermediate frame 13. That is, the temporary fixing material 14 is provided at the position of the open portion 16. Also, separately from the temporary fixing material 14 provided between the upper end portions, it may be additionally bridged between the central portions in the length direction of the left and right side frames 12 and the intermediate frame 13. That is, the temporary fixing material 14 is provided at the position of the accommodation portion 15. In short, the wiring blowing unit 10 during transportation also includes a plurality of temporary fixing materials 14 that are detachably temporarily fixed to the unit body, and as a whole, it is formed in a substantially Japanese character shape or a substantially field character shape.

[0038] The plurality of temporary fixing materials 14 are removed during the construction of the wiring blowing unit 10, but the timing may be before fixing the wiring blowing unit 10 to the building wooden panel 1 or after fixing the wiring blowing unit 10 to the building wooden panel 1. Furthermore, removing the multiple temporary fasteners 14 after fixing the wiring extension unit 10 to the building wood panel 1 has the advantage of making the fixing work of the wiring extension unit 10 easier, because the upper ends of the left and right side frames 12 and the intermediate frame 13 are less likely to swing due to the multiple temporary fasteners 14. Therefore, the multiple temporary fasteners 14 are attached to the left and right side frames 12 and the intermediate frame 13 in a manner that allows them to be removed even after the wiring extension unit 10 has been fixed to the building wood panel 1. Specifically, they are temporarily fastened in a manner that allows them to be stapled from the front (opposite side of the wall) or to be knocked off by tapping from above or below.

[0039] Cables 5 are routed into the housing section 15, which is the frame of the wiring extension unit 10 after the multiple temporary fasteners 14 fixed to the surface of the building wood panel 1 have been removed. The wiring device 4 may be attached to the wiring extension unit 10 or to the surface material Bd of the building wood panel 1. Furthermore, if the wiring positions of the cables 5 or the installation positions of the wiring devices 4 are above the multiple temporary fasteners 14 that are stretched between the longitudinal central portions of the left and right side frames 12 and the intermediate frame 13, the rigidity of the wiring extension unit 10 may be improved by permanently fixing the multiple temporary fasteners 14 in the longitudinal central portion without removing them.

[0040] After the wiring of cables 5 and the installation of wiring devices 4 into the housing 15 of the wiring extension unit 10 are completed, an interior surface material 20, which serves as a base for attaching interior finishing materials such as wallpaper, is attached to the surface of the wiring extension unit 10, thereby covering the housing 15. The interior surface material 20 is preferably made of gypsum board or other non-combustible boards.

[0041] The vertical dimension (height dimension) of the interior panel 20 is set to be shorter than the vertical dimension of the wiring extension unit 10. When the interior panel 20 is attached to the surface of the wiring extension unit 10, the lower end of the interior panel 20 is aligned with the lower end of the wiring extension unit 10. Therefore, the height position of the upper end of the wiring extension unit 10 is higher than the height position of the upper end of the interior panel 20. As a result, the opening 16 is not covered by the interior panel 20. Since the upper end of the interior panel 20 is often equal to or higher than the height of the room ceiling, the opening 16 will not be exposed into the room even if the upper end of the interior panel 20 does not reach the height position of the upper end of the wiring extension unit 10. Furthermore, the width dimension of the interior panel 20 is set to be approximately equal to the width dimension of the wiring extension unit 10.

[0042] The interior panel 20 may be divided into multiple sections. That is, the wiring furring unit 10 housing section 15 may be covered by multiple interior panel sections 20.

[0043] Furthermore, the interior panel 20 may have openings to allow wiring devices 4 to be used from inside the room. That is, since wiring devices 4 such as switches and outlets have surface plates and switch parts, some of them need to be exposed through the openings. In the case of devices that are not exposed on the surface, such as switches and outlets, it is not necessary to form openings in the interior panel 20.

[0044] Furthermore, when forming a room within a building, a ceiling (ceiling surface material 21) is provided in the room. In this embodiment, as shown in Figure 3, a building wood panel 2 for the floor or roof of the upper floor is installed on top of a building wood panel 1 for the wall of the lower floor, and below that, a ceiling surface material 21 that constitutes the ceiling of the room is provided. The ceiling surface material 21 is preferably made of, for example, gypsum board or other non-combustible boards. Such ceiling panels 21 are fixed to the underside of the joists 21a, but the joists 21a may be suspended from the building's wooden floor panels 2 on the upper floor by hangers or the like, or the joists 21a closest to the wall may be fixed to the wiring extension unit 10 as shown in Figure 3.

[0045] The cables 5 can be routed from the housing section 15 of the wiring extension unit 10 through the opening 16 at the upper end to the space above the ceiling panel 21. In other words, the cables 5 routed in the space above the ceiling can be routed through the opening 16 at the upper end of the wiring extension unit 10 to the housing section 15 of the wiring extension unit 10. This means that the cables 5 can be routed through the space above the ceiling to the desired location. Furthermore, when routing cables 5 between upper and lower floors, through-holes Th are formed that penetrate the surface material Bd of the building wood panel 2 for the upper floor floor and the lower frame 11 of the wiring extension unit 10 attached to the surface of the building wood panel 1 for the upper floor wall, and the cables 5 are passed through these through-holes Th. The insulation material In1 filled in the hollow interior of the building wood panel 2 for the floor is a fibrous insulation material such as glass wool or rock wool, and can be easily deformed by simply pushing or parting it with fingers or tools. Therefore, cables 5 can be easily routed between upper and lower floors.

[0046] Furthermore, as described above, if the wiring extension unit 10 is installed only on a portion of the surface of the building wall, that portion of the wall will protrude towards the center of the room. Therefore, as shown in Figure 2, the first additional insulation panel 22 is attached to the surface of the building wall where the wiring extension unit 10 is not installed. In other words, the first additional insulation panel 22 is added to the surface of the building wall (in this case, the indoor side), forming an additional insulation structure. The additional insulation structure, including the first additional insulation panel 22, has a thickness that is approximately equal to the thickness of the wiring extension unit 10. An interior facing material 20 is attached to the surface of the wiring extension unit 10 and the surface of the first additional insulation panel 22. This interior facing material 20 may be attached across the wiring extension unit 10 and the first additional insulation panel 22. This allows the thickness of the building walls to be uniform, eliminating any steps (which may also be called protrusions or unevenness) on the wall surface caused by the wiring extension unit 10, and improving the appearance. Moreover, it can improve the thermal insulation of the building walls.

[0047] The first additional insulation panel 22 of this embodiment is made of foamed plastic insulation material. The foamed plastic insulation material exhibits high insulation performance by trapping foaming gas in countless fine bubbles formed during manufacturing. The countless fine bubbles formed in the foamed insulation material In2 may be closed-cell or open-cell. Suitable foamed plastic insulation materials include, for example, rigid polyurethane foam, phenolic foam, and polystyrene foam, but on-site foaming types that foam simultaneously with spraying at the site are also acceptable.

[0048] Furthermore, when an additional insulation structure is formed in the wall of a building, the insulation performance of that section improves, but the insulation performance of the wiring extension unit 10 remains lower compared to that section. Therefore, a second additional insulation panel 17 may be filled into the left and right frames of the wiring extension unit 10. The thickness of the second additional insulation panel 17 is set to be approximately equal to the thickness of the wiring extension unit 10. The second additional insulation panel 17 of this embodiment may be made of a fibrous insulation material such as glass wool or rock wool, or it may be made of a foamed plastic insulation material such as rigid polyurethane foam. For example, the frame on the side where the cables 5 are provided may be filled with a flexible fibrous insulation material that is easily deformable, while the frame on the side where the cables 5 are not provided may be filled with a rigid foamed plastic insulation material that is less prone to deformation than the fibrous insulation material.

[0049] This embodiment provides the following excellent effects. In other words, the space enclosed by the lower frame 11, both side frames 12, and the intermediate frame 13 of the unit body becomes a storage section 15 where cables 5 and wiring devices 4 are housed. Therefore, by simply placing the cables 5 and wiring devices 4 inside the storage section 15, the wiring of the cables 5 and the installation of the wiring devices 4 can be easily performed. Furthermore, since the space between the upper ends of both side frames 12 and the upper end of the intermediate frame 13 in the unit body is an open section 16 through which the cables 5 pass, wiring between the inside and outside of the housing section 15 of the wiring extension unit 10 can be easily performed simply by passing the cables 5 through the open section 16. Furthermore, since the wiring extension unit 10 is attached to the surface of the building's wall, it is possible to avoid unnecessary modifications to the building's structure for the wiring of cables 5 and the installation of wiring devices 4. Furthermore, since the wiring extension unit 10 is covered by the facing material 20, the cables 5 and wiring devices 4 housed in the housing section 15 are not exposed on the surface, thus improving the appearance.

[0050] Furthermore, since the multiple temporary fastening members 14, which are detachably temporarily fastened to the unit body, are provided between both side frames 12 and the intermediate frame 13, both side frames 12 and the intermediate frame 13 are less likely to swing. This makes it easier to handle the wiring extension unit 10 during transportation and installation work, and contributes to simplifying the wiring of cables 5 and the installation of wiring devices 4.

[0051] Furthermore, since the cables 5 are housed in the housing section 15 and routed through the opening 16, the wiring of the cables 5 and the installation of the wiring devices 4 can be easily performed simply by placing the cables 5 and wiring devices 4 inside the housing section 15. Moreover, the wiring between the inside and outside of the housing section 15 of the wiring extension unit 10 can be easily performed simply by passing the cables 5 through the opening 16. In addition, since the wiring extension unit 10 is attached to the surface of the building wall, it is possible to avoid unnecessary modifications to the building structure for the wiring of the cables 5 and the installation of the wiring devices 4.

[0052] Furthermore, since a facing material 20 is attached to the surface of the wiring extension unit 10, and the housing section 15 is closed off, the cables 5 and wiring devices 4 housed inside the housing section 15 are not exposed on the surface, thereby improving the appearance.

[0053] Furthermore, the upper end of the wiring extension unit 10 is located above the ceiling 21 of the room in the building, and the cables 5 are routed between the storage unit 15 and the space above the ceiling of the room through the opening 16. Therefore, the cables 5 can be routed between the space above the ceiling and the storage unit 15, preventing them from being exposed on the surface and improving the appearance. In addition, since the cables 5 can be routed to the desired location through the space above the ceiling, the wiring of the cables 5 can be easily performed.

[0054] Furthermore, since the wiring extension unit 10 and the first additional insulation panel 22, which is set to the same thickness as the wiring extension unit 10, are attached to the wall surface side by side, the thickness of the building's walls can be made uniform. This eliminates any steps that would otherwise occur on the wall surface due to the wiring extension unit 10 and also improves the appearance. Moreover, the first additional insulation panel 22 improves the insulation performance of the building's walls. On top of that, cables 5 and wiring devices 4 can be housed in the housing section 15 of the wiring extension unit 10, making it easy to wire the cables 5 and install the wiring devices 4.

[0055] Furthermore, since the housing section 15 is filled with a second additional insulation panel 17 set to the same thickness as the wiring extension unit 10, the insulation performance of the portion of the building wall to which the wiring extension unit 10 is installed can also be improved.

[0056] Furthermore, in recent years, there has been a growing demand for the realization of a decarbonized society through the promotion of carbon neutrality, which aims to reduce carbon dioxide emissions to virtually zero, and for the achievement of the Sustainable Development Goals (SDGs). In the construction industry, efforts are being made to use wood for buildings, which reduces carbon dioxide emissions. Since the wooden building panels 1 and 2 and the wiring extension unit 10 of this embodiment are made of wood, they can contribute to the realization of a decarbonized society through the promotion of carbon neutrality and to the achievement of the SDGs.

[0057] [Variation] The embodiments to which the present invention can be applied are not limited to those described above, and can be modified as appropriate without departing from the spirit of the invention. Modifications are described below. The following modifications may be combined as much as possible. Furthermore, in each of the following modifications, elements common to the above-described embodiments are denoted by the same reference numerals, and their descriptions are omitted or simplified.

[0058] [Variation 1] In the above embodiment, the building wall was formed by arranging a plurality of wooden building panels 1, but in this embodiment, the building wall is composed of a plurality of wooden building panels 1 and a beam 6 spanning between the upper ends of these plurality of wooden building panels 1.

[0059] Even in the case of a wall with a beam 6, the wiring extension unit 10 can be installed across the building wood panel 1 and the beam 6 as long as the surface of the building wood panel 1 and the side surface of the beam 6 are flush. In other words, the wiring extension unit 10 can be securely installed across the top and bottom of a wall, provided that the surface on which the wiring extension unit 10 is attached is formed to be flat.

[0060] Furthermore, the upper end of the wiring extension unit 10 may be located below the upper end of the beam 6. In other words, the wiring extension unit 10 only needs to be positioned with its upper end in the ceiling space.

[0061] [Variation 2] In the above embodiment, the wiring extension unit 10 is attached to one side of the building wall, but in this modified example, although not shown in the figures, the wiring extension unit 10 is attached to both sides of the building wall. Furthermore, the wiring extension unit 10 may be attached to both sides of the building wall, regardless of whether the building wall is an interior wall or an exterior wall.

[0062] [Example 3] In the above embodiment, the wiring extension unit 10 is provided on the building wood panel 2 for the floor, but it may be positioned at a distance from the surface material Bd. That is, the wiring extension unit 10 only needs to be attached to the wall of the building and positioned with its upper end retracted into the ceiling space, and the lower end of the wiring extension unit 10 does not need to be in contact with the floor. [Explanation of symbols]

[0063] 1. Wooden panels for construction 2. Wooden panels for construction 3. Half-body difference 4. Equipment 5. Cables 10 Wiring extension unit 11 Bottom frame 12 Side frame 13 Intermediate slot 14 Temporary fastening material 15. Storage Area 16 Open area 17. Second additional insulation panel 20 Interior wall surface material 21 Ceiling materials 21a Wild Edge 22 First Additional Insulation Panel

Claims

1. A wiring extension unit that is attached to the surface of a building wall and covered with a facing material, The unit body is composed of multiple frame members, The unit body is surrounded by the multiple frame members and includes a storage section for accommodating cables, wiring devices, etc. The unit body is provided with an opening formed at the upper end through which the cables pass, The unit body is, The bottom frame and The lower end is connected to the side frames provided at each of the longitudinal ends of the lower frame, It is located between the two aforementioned side frames and runs parallel to both of those side frames, and its lower end is made up of an intermediate frame provided on the lower frame, The aforementioned housing section is a space enclosed by the lower frame, both side frames, and the intermediate frame. The wiring extension unit is characterized in that the opening is located between the upper ends of both side frames and the upper end of the intermediate frame.

2. In the wiring extension unit according to claim 1, The unit body is equipped with a plurality of temporary fastening materials that can be detachably temporarily fastened to it. The wiring extension unit is characterized in that the plurality of temporary fastening members are provided between the two side frames and the intermediate frame.

3. The wiring extension unit according to claim 1 or 2 is attached to the surface of the wall of the building, A wiring structure characterized in that the cables are housed in the housing and routed through the opening.

4. In the wiring structure described in claim 3, A wiring structure characterized in that the surface material is attached to the surface of the wiring extension unit, thereby closing the housing portion.

5. In the wiring structure described in claim 3, The wiring structure is characterized in that the upper end of the wiring extension unit is located above the ceiling of the room in the building, and the cables are routed between the housing and the space above the ceiling of the room through the opening.

6. A building characterized in that a wiring extension unit according to claim 1 or 2 and a first additional insulation panel set to the same thickness as the wiring extension unit are attached to the surface of the wall in a state where they are arranged side by side.

7. In the building described in claim 6, A building characterized in that the housing section is filled with a second additional insulation panel set to the same thickness as the wiring extension unit.

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