Exposed wiring box, and installation method of exposed wiring box and wiring duct

Abstract

To provide an exposed wiring box which is installed on the wall surface of a building and facilitates connection work of wiring ducts arranged along the wall surface.SOLUTION: An exposed wiring box includes a bottom wall having a fixing portion 11 fixed to a wall surface 60, and a peripheral wall 20 erected from the bottom wall, the peripheral wall 20a is formed with an insertion opening 23 into which the end of a wiring duct 40 which constitutes an installation route of a cable 73 is inserted, and the fixing portion 11 is formed of a long hole 12 extending along the insertion direction of the wiring duct 40 into the insertion opening 23. The long hole 12 has a length that exceeds the thickness of the peripheral wall 20a in which the insertion opening 23 is formed, and is formed to be longer than the extension of a contact opening 13 with the outer surface of the peripheral wall 20a of the insertion opening 23 as a base point.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an exposed wiring box that is installed on a wall surface after construction of a building, and to a method for installing an exposed wiring box and a wiring duct. [Background technology]

[0002] A wiring box for mounting wiring devices such as electrical outlets to be attached to the wall of a building is usually installed on the back side of the wall, but may be added after the building is constructed, in which case the wiring box is installed exposed on the front side of the wall. In this case, a wiring duct for accommodating cables is arranged along the wall to the wiring box, and the cables in the wiring duct are pulled out of the wiring duct and accommodated in the wiring box. Patent documents 1 and 2 disclose this type of exposed wiring box that is added after the building is constructed.

[0003] When the wiring boxes described in Patent Documents 1 and 2 are installed on a wall surface, the wiring box is fixed to the wall surface by aligning the installation center position of the wiring device such as an outlet with the center position of the wiring box, and then the wiring duct constituting the wiring path is cut and adjusted in length using the fixed wiring box as a guide. After that, the wiring duct is inserted into the wiring box along the wall surface from an insertion opening provided in the peripheral wall of the wiring box while being bent, and fixed to the wall surface with double-sided adhesive tape. Here, the wiring duct is composed of a long base fixed to the wall surface using double-sided adhesive tape or the like, and a long cover body attached to the base from above. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2004-201469 A [Patent Document 2] JP 2012-228176 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the installation of a conventional exposed wiring box, when the wiring duct is attached to the wall by gluing, the double-sided adhesive tape attached to the base of the wiring duct may be prematurely attached to an unexpected position during the installation work. Therefore, until the wiring duct is placed in the specified position, the end of the base must be inserted into the insertion opening of the wiring box while being careful not to glue the double-sided adhesive tape to the wall. Moreover, this work must be performed while adjusting the base of the wiring duct so that it is held in a certain direction, such as horizontally or vertically. For this reason, the installation work of the wiring duct was troublesome.

[0006] In addition, after the wiring duct base is installed on the wall, when attaching the wiring duct cover to the base from above, the cover must be inserted into the narrow gap between the wiring box insertion opening and the base while bending it, and then fitted to the base, making the installation of the cover difficult. The same applies when fixing the wiring duct base with nails, screws, etc.

[0007] Therefore, an object of the present invention is to provide an exposed wiring box that can smoothly connect a wiring duct that is arranged along the wall surface when installed on the wall surface of a building, and an installation method for the exposed wiring box and the wiring duct. [Means for solving the problem]

[0008] The exposed wiring box of claim 1 has a wiring device installed on the front surface thereof, The device has a bottom wall having a fixing portion to be fixed to a structure, and a peripheral wall extending upright from the bottom wall, An insertion opening is formed in the peripheral wall, into which an end of a wiring duct that configures an arrangement path for a cable connected to the wiring device is inserted, the fixing portion is a long hole extending along an insertion direction of the wiring duct into the insertion opening, a contact opening is formed in the bottom wall, the contact opening communicating with the insertion opening and extending in a direction penetrating the peripheral wall in which the insertion opening is formed, so that the end of the inserted wiring duct can be abutted against the structure so that the end of the wiring duct can be inserted inside the inner surface of the peripheral wall; The length of the slot is determined by the length of the insertion opening. The length of the abutment opening is greater than the length of the abutment opening from the outer surface of the peripheral wall. It is something.

[0009] The exposed wiring box of claim 2 is The wiring device is installed on the front, The container is formed in an elongated rectangular box shape and has a bottom wall having a fixing portion to be fixed to a structure, and a peripheral wall extending upright from the bottom wall. a housing opening having a size capable of housing a rear end side of the wiring device in a direction in which a rectangular long side side facing forward of the wiring device is aligned with a longitudinal direction of the exposed wiring box is formed on a tip side of the peripheral wall; An insertion opening is formed in a pair of opposing peripheral walls on both sides in the longitudinal direction of the peripheral walls, into which an end of a wiring duct that configures an arrangement path for a cable connected to the wiring device is inserted, the fixing portion is a long hole extending along the longitudinal direction in a direction in which the wiring duct is inserted into the insertion opening, The length of the long hole is greater than the thickness of the peripheral wall in which the insertion opening is formed, and is large enough to simultaneously accommodate two screws that are driven into the structure through one long hole.

[0010] The method for installing the exposed wiring box and wiring duct of claim 3 comprises: The device has a bottom wall having a fixing portion fixed to a structure, and a peripheral wall erected from the bottom wall, and the peripheral wall is formed with an insertion opening into which an end of a wiring duct that forms an internal path for a cable connected to a wiring device installed on the front side is inserted, and the fixing portion is an elongated hole that extends along the insertion direction of the wiring duct into the insertion opening and has a size that exceeds the plate thickness of the peripheral wall in which the insertion opening of the wiring duct is formed. a temporary fixed state in which a screw penetrating the fixing portion is lightly driven into the structure so that the exposed wiring box can slide between a regular installation position and a temporary position in which the exposed wiring box has been moved in an insertion direction into the insertion opening by more than an insertion length of the wiring duct connected to the insertion opening; placing the exposed wiring box in the temporary position; an end portion of the wiring duct is disposed at the end portion of the wiring duct exposed thereby; The exposed wiring box is slid to the normal installation position, and is inserted through the insertion opening. receiving an end of the wiring duct; The exposed wiring box in the correct installation position is finally fixed to the structure by further tightening the screws. Effect of the Invention

[0011] In the present invention, the length of the elongated hole, which is the fixing portion of the exposed wiring box, exceeds the thickness of the peripheral wall in which the insertion opening is formed. Alternatively, the length is greater than the extension length of the abutment opening from the outer surface of the peripheral wall in which the insertion opening is formed.Therefore, when connecting the wiring duct to the exposed wiring box, while the exposed wiring box is temporarily fixed to the wall surface in the correct installation position in the long hole with screws, the exposed wiring box can be slid to the temporary position to expose the end placement location of the wiring duct on the wall surface where the end will be placed, so that the wiring duct can be placed from the front on the wall surface without interfering with the exposed wiring box. After the wiring duct is installed, the exposed wiring box can be slid to the correct installation position and the exposed wiring box can be permanently fixed to the wall surface by tightening the screws. This allows the wiring duct to be smoothly installed on the wall surface and connected to the exposed wiring box. [Brief description of the drawings]

[0012] [Figure 1] 1A and 1B show an exposed wiring box according to an embodiment of the present invention, in which FIG. 1A is a perspective view seen from the opening side, and FIG. [Diagram 2] 2A and 2B show the exposed wiring box of FIG. 1, in which FIG. 2A is a plan view and FIG. 2B is a cross-sectional view taken along line AA of FIG. [Diagram 3] 2A and 2B show a wiring duct connected to the exposed wiring box of FIG. 1, where (a) is a perspective view and (b) is a front view. [Figure 4] 4 is a plan view illustrating a procedure for fixing the exposed wiring box of FIG. 1 and the wiring duct of FIG. 3 to a wall surface. [Diagram 5] 4(a) and (b) are cross-sectional views of FIG. 4(c), that is, cross-sectional views of the wiring duct, and (c) and (d) are cross-sectional views of FIG. 4(d), that is, cross-sectional views of the wiring duct. [Figure 6] 2A and 2B show the exposed wiring box of FIG. 1 with a wiring device and a decorative plate attached thereto, (a) and (c) being plan views, and (b) and (d) being cross-sectional views. [Figure 7] 2 is a plan view showing a state in which a wiring duct is connected vertically to the exposed wiring box of FIG. 1. [Figure 8] FIG. 2 is a plan view showing a state in which a wiring duct is connected vertically to the exposed wiring box of FIG. [Figure 9]5 is a plan view illustrating a procedure for connecting a wiring duct to an exposed wiring box by a method different from that in FIG. 4. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An exposed wiring box and a wiring duct according to an embodiment of the present invention will now be described with reference to the drawings. The exposed wiring box and the wiring duct are installed on a wall surface after construction of a building.

[0014] 1 and 2, exposed wiring box 1 is made of synthetic resin and has a long and narrow rectangular box shape, and includes a bottom wall 10 and a peripheral wall 20 standing upright from bottom wall 10, with a housing opening 30 formed at the tip side of peripheral wall 20 for housing the rear end side of a wiring fixture. Exposed wiring box 1 is designed so that wiring ducts 40 can be connected to peripheral walls 20 on both the left and right sides. Incidentally, exposed wiring box 1 may be made of metal.

[0015] The bottom wall 10 is formed in a long and narrow rectangular plate shape, and is provided at the middle in the width direction with two fixing parts 11 which are fixed to a wall surface 60 of a structure at a predetermined interval in the longitudinal direction. 23 The bottom wall 10 has a long hole 12 extending in the direction in which the wiring duct 40 is inserted, i.e., in the longitudinal direction of the bottom wall 10.

[0016] The peripheral wall 20 has an insertion opening 23 into which an end of the wiring duct 40 is inserted at the end of the narrower peripheral wall 20a of the four sides, i.e., the pair of opposing peripheral walls 20a, 20a on both the left and right sides in Fig. 2(a) facing each other, on the bottom wall 10 side. The insertion opening 23 is formed in a shape that substantially matches the outer wall surface of the wiring duct 40, and the bottom wall 10 side penetrates to the outside. A plate-shaped cover member 24 that closes the insertion opening 23 is removably attached.

[0017] In the bottom wall 10, between each fixing portion 11 and the left and right peripheral walls 20a, there is provided a contact opening 13 that allows the inserted end 40a of the wiring duct 40 to contact the wall surface so that the end 40a of the wiring duct 40 can be inserted inside the inner surface 21 of the peripheral wall 20a. The contact opening 13 is formed so as to communicate with the insertion opening 23 of the peripheral wall 20a and to extend in a direction penetrating the left and right peripheral walls 20a in which the insertion opening 23 is provided.

[0018] As shown in FIG. 2(a), the elongated holes 12, 12 of the pair of fixing parts 11, 11 provided on the bottom wall 10 are formed so that the extension length L1 is greater than at least the plate thickness t of the peripheral wall 20a in which the insertion opening 23 is formed. Here, the extension length of the elongated hole 12 means the length by which the screw 50 attached in the elongated hole 12 can move relatively in the elongated hole 12 by sliding the exposed wiring box 1. Furthermore, the extension length L1 of the elongated hole 12 is greater than the extension length L2 of the abutment opening 13, which is based on the outer surface 22 of the peripheral wall 20a of the insertion opening 23. Here, the extension length of the abutment opening 13 means the length by which the end 40a of the wiring duct 40 inserted into the abutment opening 13 can enter the abutment opening 13, which is based on the outer surface 22 of the peripheral wall 20a. In this regard, the extension length L1 of the long hole 12 is determined based on the allowable insertion length of the wiring duct 40, but if the extension length L1 of the long hole 12 is determined based on the insertion opening 23, it can also be expressed as being greater than the height of the internal space of the insertion opening 23.

[0019] As shown in FIG. 2(b), an insertion opening 25 is formed at the end of the bottom wall 10 side of the longitudinal middle part of the wider peripheral wall 20b of the four peripheral walls 20, i.e., a pair of peripheral walls 20b, 20b that are perpendicular to and adjacent to the peripheral walls 20a on both the left and right sides in FIG. 2(a) and face each other in the vertical direction, into which the end 40a of the wiring duct 40 can be inserted by removing the knockout formed in the peripheral wall 20b. In addition, abutment openings 14 are formed at both vertical sides of the longitudinal middle part of the bottom wall 10, which communicate with the insertion opening 25 and allow the end 40a of the wiring duct 40 to abut against the wall surface 60 so that the end 40a of the wiring duct 40 can be inserted from the insertion opening 25 inside the inner surface of the peripheral wall 20b. The insertion openings 25 formed in the peripheral wall 20b and the abutment openings 14 in the bottom wall 10 constitute a spare connection part that is used as a spare depending on the wiring direction of the cable.

[0020] The bottom wall 10 is formed with a screw holder 15 for holding a mounting screw for attaching a wiring device mounting frame 71 for holding a wiring device 70. The inner wall surface at the longitudinal center position of the peripheral wall 20b is formed with a groove 16 for holding a partition plate that divides the interior, so that the interior of the exposed wiring box 1 can be divided into left and right sections by attaching a partition plate.

[0021] At both ends of the accommodating opening 30 of the exposed wiring box 1, boss portions 31 are provided at the ends of the peripheral walls 20a on both sides facing the accommodating opening 30, and mounting holes 32 are formed in the boss portions 31 into which mounting screws are screwed to pass through insertion holes at both ends of a wiring device mounting frame 71 that holds the wiring device 70. The mounting holes 32 in the boss portions 31 are formed by embedding nuts in the boss portions 31, or by directly forming screw holes in the boss portions 31.

[0022] Next, as shown in FIG. 3, the wiring duct 40 connected to the exposed wiring box 1 is composed of a long base 41 having a cross section formed in a fixed rectangular frame shape and fixed to a wall surface 60, and a long lid 42 assembled to the base 41 from above to form a wiring path inside. The base 41 has a plate-shaped part 41a having a fixing part consisting of a screw hole (not shown) and side walls 41b erected on both sides of the plate-shaped part 41a, and is fixed to the wall surface 60. The lid 42 has a pair of side plate parts 42a, 42a having a fitted part 42b on the inside that fits with a fitting part 41c formed on each side wall 41b of the base 41, and a top plate part 42c connecting the side plate parts 42a, 42a, and is assembled to the base 41 from above to form a wiring path for the cable 73 inside. These members are made of synthetic resin material. The wiring duct 40 can be fixed to the wall surface 60 by adhering double-sided adhesive tape to the base 41, or by driving nails, screws 50, etc. into the base 41.

[0023] Next, a method for installing the exposed wiring box 1 and the wiring duct 40 configured as described above on the front side of the wall surface 60 after construction of the building will be described. Here, a case where the exposed wiring box 1 and the wiring duct 40 are arranged horizontally and installed on the wall surface 60 will be described.

[0024] First, as shown in Fig. 4(a), screws 50 are attached to the long holes 12 of the two fixing parts 11 of the exposed wiring box 1 to fix the exposed wiring box 1 in the correct position on the wall surface 60, which is a structure. Before fixing the exposed wiring box 1, the cover member 24 provided on the right-side peripheral wall 20a, which is one of the insertion openings 23, is removed. Next, the screws 50 are slightly loosened to temporarily fix the exposed wiring box 1, and the exposed wiring box 1 is slid to the left as shown in Fig. 4(b). After the movement, each screw 50 is located at the right end of the long holes 12.

[0025] After the exposed wiring box 1 is moved to the left, a wall surface 60 exposed on the outer side of the right side peripheral wall 20a appears, and the wall surface 60 in that portion becomes the end arrangement position 61 where the end 40a of the wiring duct 40 is to be arranged. Then, as shown in FIG. 4(c) and FIG. 5(a) and (b), the base 41 of the wiring duct 40 is arranged horizontally, and the end 41d is arranged at the end arrangement position 61 while being abutted against the wall surface 60 and bonded with a double-sided adhesive tape previously attached to the base 41. At this time, the base 41 can be arranged from the front side against the wall surface 60 without interfering with the exposed wiring box 1. In addition, at this time, the position of the tip of the wiring duct 40 may be approximately coincident with the outer surface 22 of the right side peripheral wall 20a of the exposed wiring box 1, or may be slightly spaced to the right from the outer surface 22 of the peripheral wall 20a. The base 41 may be fixed to the wall surface 60 by driving nails, screws 50, etc., instead of the double-sided adhesive tape.

[0026] Next, the cable 73 is wired inside the base 41 of the wiring duct 40, and further inserted through the insertion opening 23 of the exposed wiring box 1 to wire inside. Thereafter, the cover 42 of the wiring duct 40 is fitted and attached from above the base 41, that is, from the front side against the wall surface 60. At this time, the cover 42 is attached by simply pressing it from above, with the fitting portions 41c on both sides elastically fitting into the fitted portions 42b on both sides of the cover 42.

[0027] Next, as shown in Figures 4(d) and 5(c) and (d), the exposed wiring box 1 is slid to the right so that the end 40a of the wiring duct 40 is inserted through the insertion opening 23 and accepted into the interior of the exposed wiring box 1, and the screws 50 that were temporarily fixed in the correct installation position are tightened to permanently fix the exposed wiring box 1 to the wall surface 60.

[0028] After the exposed wiring box 1 and the wiring duct 40 are fixed to the wall surface 60 in this manner, the cable 73 and the wiring device 70 are connected as shown in Figs. 6(a) and (b). Then, mounting screws are inserted into the insertion holes at both ends of the wiring device mounting frame 71 that holds the wiring device 70, and the wiring device 70 is attached to the exposed wiring box 1 via the wiring device mounting frame 71 by mounting the wiring device 70 to the mounting holes 32 of the boss portions 31 on both sides of the exposed wiring box 1. Then, as shown in Figs. 6(c) and (d), a decorative plate 72 is fitted and attached to the front side of the wiring device 70. As a result, the exposed wiring box 1 and the wiring duct 40 are fixed in an exposed state on the wall surface of the wall material after construction, and the installation work of the wiring device 70 is completed.

[0029] Here, in the above, the exposed wiring box 1 and the wiring duct 40 are arranged and fixed in a horizontal direction, but when the wiring duct 40 is arranged vertically from above and connected to and fixed to the exposed wiring box 1, as shown in Fig. 7(a), the exposed wiring box 1 is placed in a vertical position and the screws 50 are attached and fixed to the wall surface 60 in the normal position, and then the screws 50 are loosened a little to move the exposed wiring box 1 relatively in the long hole 12, and the exposed wiring box 1 is slid downward as shown in Fig. 7(b). At this time, the exposed wiring box 1 descends by its own weight, so the screws 50 may be in a fairly loosely fastened state. In this state, the end arrangement portion 61 where the end 40a of the wiring duct 40 is to be arranged is exposed on the wall surface 60 above the exposed wiring box 1, so as shown in Fig. 7(b), the base 41 of the wiring duct 40 is placed in a vertical position and the end 41d is placed in the end arrangement portion 61, the base 41 is fixed to the wall surface 60, and the cover 42 is attached.

[0030] Thereafter, in the same manner as when the exposed wiring box 1 etc. described above is installed horizontally, the exposed wiring box 1 is slid upward so that the end 40a of the wiring duct 40 is inserted through the insertion opening 23 and received inside the exposed wiring box 1, and the screws 50 are further tightened to finally fix the exposed wiring box 1 to the wall surface 60 in the correct installation position.

[0031] In addition, when the wiring duct 40 is arranged vertically from below and connected to and fixed to the exposed wiring box 1, as shown in Fig. 8(a), the exposed wiring box 1 is vertically elongated and the screws 50 are attached to the wall surface 60 in the normal position, and then the screws 50 are loosened a little to move the exposed wiring box 1 relatively in the long holes 12, and the exposed wiring box 1 is slid upward as shown in Fig. 8(b). At this time, each screw 50 is located at the lower end of the long holes 12 and is in a provisionally fixed state, but if the screws 50 are not tightened enough, the exposed wiring box 1 will fall under its own weight, so the screws 50 are tightened a little more firmly to prevent the exposed wiring box 1 from falling under its own weight. In this state, the end arrangement portion 61 is exposed on the wall surface 60 below the exposed wiring box 1, so as shown in Fig. 8(b), the end 41d of the base 41 is arranged at the end arrangement portion 61 below the exposed wiring box 1, abutted against the wall surface 60, and fixed, and the cover 42 is attached.

[0032] Next, the exposed wiring box 1 is slid downward to receive the end 40a of the wiring duct 40 inside the exposed wiring box 1, and the screws 50 are tightened to finally fix the exposed wiring box 1 to the wall surface 60 in the correct installation position.

[0033] Next, the operation of the exposed wiring box 1 of this embodiment will be described. In the exposed wiring box 1, the length L1 of the long hole 12, which is the fixing portion 11, is formed to be larger than the plate thickness t of the peripheral wall 20a in which the insertion opening 23 is formed. Therefore, when the wiring duct 40 is connected to the exposed wiring box 1, the exposed wiring box 1 is slid to a temporary position in a state in which the screws 50 are temporarily fixed in the regular installation position in the long hole 12, so that the end arrangement portion 61 where the end 40a of the wiring duct 40 is arranged can be exposed on the wall surface 60 outside the peripheral wall 20a, and the wiring duct 40 can be arranged and fixed from the front against the wall surface 60 without interfering with the exposed wiring box 1. After the wiring duct 40 is installed, the exposed wiring box 1 is slid to the regular installation position, and the screws 50 are further tightened to permanently fix the exposed wiring box 1 to the wall surface 60.

[0034] As a result, when installing the wiring duct 40 on the wall surface 60, there is no need to insert the base 41 of the wiring duct 40 into the insertion opening 23 of the exposed wiring box 1 while being careful not to let the double-sided adhesive tape attached to the base 41 stick to the wall surface 60 during installation, and the wiring duct 40 can be fitted and attached to the base 41 without bending the cover 42 of the wiring duct 40 and inserting it into the narrow gap between the insertion opening 23 of the exposed wiring box 1 and the base 41. As a result, the wiring duct 40 can be installed on the wall surface 60 and connected to the exposed wiring box 1 simply and easily.

[0035] Furthermore, since the extension length L1 of the long hole 12 is formed to be greater than the thickness t of the peripheral wall 20a in which the insertion opening 23 is formed, at least the tip of the wiring duct 40 is inserted further inward than the inner surface 21 of the peripheral wall 20a, and the entire thickness portion of the inner wall surface of the insertion opening 23 overlaps with the outer surface of the wiring duct 40, thereby sealing the gap between the insertion opening 23 and the wiring duct 40. This improves the appearance of the connection point between the exposed wiring box 1 and the wiring duct 40 and prevents dust and other foreign matter from entering the wiring duct 40 from the outside.

[0036] Furthermore, the bottom wall 10 of the exposed wiring box 1 is formed with an abutment opening 13 that allows the end 40a of the wiring duct 40 inserted into the insertion opening 23 to abut against the wall surface 60, and the length L1 of the elongated hole 12 is set to be greater than the length L2 of the abutment opening 13 extending from the outer surface 22 of the peripheral wall 20a of the insertion opening 23 as a base point. This increases the range over which the exposed wiring box 1 can be slid and adjusted, and also increases the degree of freedom in the position at which the screw 50 is driven into the elongated hole 12, thereby increasing the degree of freedom in the installation position of the exposed wiring box 1 on the wall surface 60.

[0037] In the above embodiment, in the method of installing the exposed wiring box 1 and the wiring duct 40 on the front side of the wall surface 60, when the exposed wiring box 1 is fixed in the regular position on the wall surface 60 by driving the screws 50 into the long holes 12 of the exposed wiring box 1, the two screws 50 are driven into the two long holes 12 to attach the exposed wiring box 1 in a temporarily fixed state. In contrast, as shown in FIG. 9, first, only the right screw 50 may be attached to temporarily fix the exposed wiring box 1, and in that state, the exposed wiring box 1 may be slid and moved. That is, first, as shown in FIG. 9(a), the right screw 50 is attached in the regular position of the right long hole 12. Next, as shown in FIG. 9(b), the exposed wiring box 1 is slid and moved to the left, and the end 41d of the base 41 of the wiring duct 40 is placed from the front at the end placement location 61 exposed outside the right peripheral wall 20a, as shown in FIG. 9(c).

[0038] When the exposed wiring box 1 is finally slid to the right to return to the normal position and is finally fixed, an additional screw 50 is attached to the left long hole 12 as shown in FIG. 9(d). In the previous embodiment, the position where the additional left screw 50 is attached is a position closer to the left in the long hole 12 as shown in FIG. 4(a) because it is necessary to slide the exposed wiring box 1 to the left after driving in the two screws 50, but in the case of FIG. 9, it is a position closer to the right in the long hole 12 as shown in FIG. 9(d). In this way, the two screws 50 are disposed at positions closer to the opposite sides of each other in the long hole 12, so that even if the screws 50 become slightly loose, the exposed wiring box 1 is restricted from sliding to the left and right. This holds the exposed wiring box 1 in a fixed position.

[0039] In the case of Fig. 9, when fixing with only one screw 50 in the initial state shown in Fig. 9(a), if the tightening is too loose, the exposed wiring box 1 will tilt around the attachment position of the one right screw 50 due to the left-right weight balance and will rotate to a vertical state, so the screw 50 is tightened a little more firmly just enough to prevent rotation. Alternatively, in the state shown in Fig. 9(a), a second screw 50 can be attached at any position in the left long hole 12 with a loose tightening force just enough to prevent the exposed wiring box 1 from rotating under its own weight, and when the exposed wiring box 1 has moved to the final position shown in Fig. 9(d), the screw 50 can be temporarily removed from the left long hole 12 and then re-driven into the same left long hole 12 at a position shifted to the right as shown in Fig. 9(d).

[0040] In addition, in the above embodiment, the extension length of the long hole 12 is formed to be large enough to allow the end 40a of the wiring duct 40 to be inserted into the abutment opening 13, but it is sufficient that it can be inserted at least up to the inner surface 21 of the peripheral wall 20a in which the insertion opening 23 is provided.

[0041] In addition, in the installation procedure of the above embodiment, the wiring duct 40 is fixed to the wall surface 60 when the exposed wiring box 1 is in a temporary position, but this is not limited to this. The exposed wiring box 1 may be moved from the temporary position to the regular position so that the end 40a of the wiring duct 40 is inserted into the exposed wiring box 1 through the insertion opening 23, and then the wiring duct 40 may be fixed to the wall surface 60 using nails, screws, etc., or further, the exposed wiring box 1 may be fixed in the regular position and then fixed to the wall surface 60.

[0042] Furthermore, the cover 42 of the wiring duct 40 is attached to the base 41 after the exposed wiring box 1 is in a temporary position and the end 41d of the base 41 of the wiring duct 40 is positioned at the end position 61 of the wiring duct 40, but this does not prevent the exposed wiring box 1 from being slid into the correct position and then attached to the base 41.

[0043] In the procedure of the above embodiment, the cable 73 is wired into the base 41 and the exposed wiring box 1 after the exposed wiring box 1 is in a temporary position and the end 41d of the base 41 is positioned, and the cover 42 of the wiring duct 40 is attached to the base 41, but the cable 73 may be wired after the base 41 is fixed to the wall surface 60 and the exposed wiring box 1 is slid from the temporary position to the correct position but before the cover 42 is attached to the base 41.

[0044] In addition, in the above embodiment, the fixing portion 11 is provided in two at a predetermined interval in the longitudinal direction in the widthwise intermediate portion of the bottom wall 10, and each is formed by a long hole 12, but the present invention is not limited to this when it is implemented. As long as the exposed wiring box 1 can slide along the longitudinal direction of the wiring duct 40 in the temporarily fixed state, one or three or more fixing portions 11 may be provided, and the position of the fixing portion 11 on the bottom wall 10 does not matter. Furthermore, the shape of the fixing portion 11 is not limited to the long hole 12. When the fixing portion 11 is formed by one long hole 12, two screws 50 are usually attached in one long hole 12, so that the long hole 12 becomes quite long.

[0045] Although the exposed wiring box 1 in the above embodiment is formed in a long and narrow rectangular box shape, the shape is not limited to this, and may be a square box shape, a polygonal box shape, a substantially circular box shape, a substantially elliptical box shape, etc. Furthermore, the wiring duct 40 is also not limited to the above shape.

[0046] Furthermore, the exposed wiring box of the present invention is not limited to those installed on the wall surface of a building after construction, but can be applied to various wiring boxes that are installed in an exposed state and improve the appearance of the connection with a wiring duct. [Explanation of symbols]

[0047] 1 Exposed wiring box 40 Wiring duct 10 Bottom wall 40a End 11 Fixing part 50 Screw 12 Long hole (fixing part) 60 Wall surface 13 Abutment opening 61 End arrangement location 20, 20a, 20b Peripheral wall 70 Wiring device 21 Inner surface of perimeter wall 73 Cable 22 Outer surface of peripheral wall L1 Length of elongated hole 23 Insertion opening L2 Extension length of abutment opening 30 Storage opening t Thickness of surrounding wall

Claims

1. An exposed wiring box in which wiring equipment is installed on the front surface, The device has a bottom wall having a fixing portion to be fixed to a structure, and a peripheral wall extending upright from the bottom wall, An insertion opening is formed in the peripheral wall, into which an end of a wiring duct that configures an arrangement path for a cable connected to the wiring device is inserted, the fixing portion is a long hole extending along an insertion direction of the wiring duct into the insertion opening, a contact opening is formed in the bottom wall, the contact opening communicating with the insertion opening and extending in a direction penetrating the peripheral wall in which the insertion opening is formed, so that the end of the inserted wiring duct can be abutted against the structure so that the end of the wiring duct can be inserted inside the inner surface of the peripheral wall; An exposed wiring box, characterized in that the length of extension of the long hole is greater than the length of extension of the abutment opening from the outer surface of the peripheral wall on which the insertion opening is formed.

2. An exposed wiring box in which wiring equipment is installed on the front surface, The container is formed in an elongated rectangular box shape and has a bottom wall having a fixing portion to be fixed to a structure, and a peripheral wall extending upright from the bottom wall. a housing opening capable of housing a rear end side of the wiring device in a direction in which a rectangular long side side of the wiring device facing forward is aligned with a longitudinal direction of the exposed wiring box is formed on a tip side of the peripheral wall; An insertion opening is formed in a pair of opposing peripheral walls on both sides in the longitudinal direction of the peripheral walls, into which an end of a wiring duct that configures an arrangement path for a cable connected to the wiring device is inserted, the fixing portion is a long hole extending along the longitudinal direction in a direction in which the wiring duct is inserted into the insertion opening, An exposed wiring box characterized in that the length of the long hole exceeds the thickness of the surrounding wall in which the insertion opening is formed, and is large enough to simultaneously accommodate two screws that are driven into the structure through one long hole.

3. An exposed wiring box having a bottom wall having a fixing portion fixed to a structure, and a peripheral wall erected from the bottom wall, wherein an insertion opening is formed in the peripheral wall into which an end of a wiring duct forming an internal arrangement path for a cable connected to a wiring device installed at the front is inserted, and wherein the fixing portion is a long hole extending in the insertion direction of the wiring duct into the insertion opening with a size exceeding the plate thickness of the peripheral wall in which the insertion opening of the wiring duct is formed, the exposed wiring box being in a temporary fixed state in which screws penetrating the fixing portion are lightly driven into the structure so that the exposed wiring box can slide between a normal installation position and a temporary position moved in the insertion direction into the insertion opening by more than the insertion length of the wiring duct connected to the insertion opening, placing the exposed wiring box in the temporary position; an end portion of the wiring duct is disposed at the end portion of the wiring duct exposed thereby; The exposed wiring box is slid to the normal installation position to receive the end of the wiring duct through the insertion opening; a wiring duct mounting member for mounting the exposed wiring box to the structure, the wiring duct being attached to the exposed wiring box;

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