Pole, electric device installing device, and electric device installing structure

Abstract

To provide a pole on which an electric device can be mounted and with which a cable laid from a power supply facility can be wired to the electric device without interfering passage of people and vehicles.SOLUTION: A pole 1 is disposed so as to stand on an installation surface 70, and an electric device 50 is mounted on an upper end side of the pole. The pole has a pole main body 10 in which a tubular portion 11 extending in the standing direction is disposed and a hollow inner space 12 is disposed in the tubular portion 11. A through hole is formed in a portion of a circumferential wall 13 surrounding the inner space 12 in the circumferential direction. The electric device 50 can be mounted into the through hole. Further, in the inner space 12, an introduction port through which a cable 60 can be introduced to the inside of the space is formed in a position opposite to the through hole and away and above the installation surface 70. A wire tube connection body 30 to which a wire tube 61 can be connected is disposed in the introduction port. Accordingly, to the pole 1, the cable 60 and the wire tube 61 are laid on a passage in a parking space or the like so that interference with passage of vehicles, etc. is prevented.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a support for installing electrical equipment such as an EV charging outlet and a parking meter, an electrical equipment installation device, and an electrical equipment installation structure. [Background technology]

[0002] EV charging outlets for charging the storage batteries of electric vehicles are installed on poles erected in parking lots and other locations. The poles are generally fixed with their lower ends buried in the ground. However, in this case, the parking lot must be excavated and a concrete foundation poured, which increases the time and cost required to install the poles, and if it becomes necessary to move the poles after installation, it is necessary to remove them from the concrete foundation.

[0003] In response to this, Patent Document 1 discloses a technology for installing the pole in a parking lot or the like without burying the lower end of the pole in the ground. The charging equipment installation structure described in Patent Document 1 involves placing a foundation block on the ground of the parking lot and fastening the pole to the foundation block with bolts and nuts via a base member, and the weight of the foundation block prevents the pole from falling over, making it possible to install the pole without driving a foundation. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-68499 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, while the installation structure of the charging equipment in Patent Document 1 allows flexibility in where the poles are installed, the poles on which the EV charging outlets are installed are installed at a location separated by a parking lot from the outlet of the power supply cable through which power is supplied, and the cable from the outlet of the power supply cable to the pole's EV charging outlet is laid partway over the walkway surface of the parking lot. This creates a risk of people passing through the parking lot tripping over the cable, and it was necessary to take protective measures such as covering the top of the cable with an enclosure such as a wiring protector that can withstand the impact of vehicles passing by.

[0006] Therefore, an object of the present invention is to provide a support, an electrical equipment installation device, and an electrical equipment installation structure to which electrical equipment can be attached and which allows cables laid from a power supply facility to be wired to the electrical equipment without interfering with the passage of people or vehicles along the way and without the need for special protective measures. [Means for solving the problem]

[0007] The support of claim 1 is It is installed upright on the installation surface and electrical equipment is attached to the upper end side, The support body includes a cylindrical portion extending in a vertical direction at least at an upper end side, and a hollow internal space is provided in at least a part of the axial direction of the cylindrical portion, a through hole that communicates the internal space with the outside is formed through a portion of a peripheral wall that circumferentially surrounds the internal space, and the electrical device can be attached to the through hole; The internal space has an inlet through which a cable can be introduced, the inlet being formed above half the erection length of the support, The inlet is provided with a connection portion to which a conduit that forms a wiring path for the cable can be connected. Here, the "standing length of the pillar" refers to the length of the exposed part of the pillar above the installation surface. Even if the lower end of the pillar is buried in the ground and erected on the erection surface, the length of the buried part is not included. Note that the upper end of the pillar is included in the standing length because it is above half of the erection length.

[0008] In the support of claim 2, particularly, the introduction port is formed at a position that is shifted in the circumferential direction with respect to the through hole and at a position where the height in the erecting direction overlaps with the through hole. As a result, the inlet is offset in the circumferential direction from the electric device attached to the through hole, so it does not get in the way when operating the electric device, the connection part provided at the inlet is not noticeable, and the inlet is balanced in the height direction with the electric device, resulting in a good appearance. In the support of claim 3, particularly, an introduction port is formed at a position facing the through hole. This makes it easier to wire the cable because the wiring path from the inlet to the electrical device provided in the through hole is linear. Also, the cable can be wired from the inlet to the electrical device in the shortest distance.

[0009] In the support of claim 4, the inlet is formed at the upper end of the support body. This allows the electric conduit to be connected directly above the support body, and the electric conduit is less likely to interfere with obstacles that may exist to the sides of the piping route.

[0010] In the support of claim 5, the connection portion can be connected in a state where the end of the electric conduit to be connected is aligned with the erection direction of the support body. As a result, the conduit does not protrude too much to the side of the support body and is neatly arranged in the vertical direction together with the support body, resulting in a good appearance around the connection. In the support of claim 6, the connection portion is provided with an outer tube portion that receives the end of the electric conduit inside, and the axis of the outer tube portion is parallel to the erection direction of the support body or is inclined within a range of 45°. As a result, like the support of claim 5, the conduit protrudes less to the side of the support body, resulting in a good appearance around the connection.

[0011] The support column according to claim 7 has a plurality of through holes formed at positions offset in the circumferential direction of the peripheral wall. The support of claim 8 is The support body is a hollow cylinder whose internal space continues in the vertical direction, and a cable connecting to an electrical device can be introduced from the lower end side and wired inside the support body up to the through hole, The inlet with the connection portion removed has the same shape as the through hole, is shifted in the circumferential direction relative to the through hole, and is formed at a position where its height in the vertical direction overlaps with the through hole, making it possible to attach another electrical device different from the electrical device attached to the through hole. This allows the inlet to be used to mount the electrical equipment when installing two electrical devices by not using a conduit connector at the inlet.

[0012] The electrical equipment installation device according to claim 9 comprises: The electrical equipment is provided with a support pole that is erected on an installation surface and has an electrical device attached to its upper end, and a conduit connector that is fixed to the support pole. The support pillar is The support body includes a cylindrical portion extending in a vertical direction at least at an upper end side, and a hollow internal space is provided in at least a part of the axial direction of the cylindrical portion, a through hole that communicates the internal space with the outside is formed through a portion of a peripheral wall that circumferentially surrounds the internal space, and the electrical device can be attached to the through hole; The internal space has an inlet through which a cable can be introduced, the inlet being formed above half the erect length of the support, The conduit connector is The cable has a connection portion to which a conduit that forms the wiring path therein can be connected, and is fixed to the inlet, forming a continuous wiring path from the inside of the conduit to the internal space via the inlet.

[0013] The electrical equipment installation structure of claim 10 comprises: A support is erected on the installation surface, and an electrical device is attached to an upper end side of the support; The lower end of the electric conduit hanging down from above is connected to a point away from the installation surface of the support, and a cable wired inside the electric conduit passes through an internal space provided in the support and is connected to the electrical equipment. The electrical equipment installation structure of claim 11 comprises: A support is erected on the installation surface, and an electrical device is attached to an upper end side of the support; The lower end of the electric conduit hanging down from above is connected to the electric device, and a cable wired inside the electric conduit is connected to the electric device.

[0014] The electrical equipment installation structure of claim 12 comprises: An electrical equipment installation device having a fixing part fixed to an installation surface and an electrical equipment having an operation part operated by a user is fixed to the installation surface in a state where the operation part is disposed above and away from the installation surface, The lower end of the electric conduit suspended from above is connected to the electric equipment, and a cable routed within the electric conduit is connected to the electric equipment.

[0015] In the electrical equipment installation structure of claim 13, a cable is laid in a wiring path formed by a cable rack suspended from the ceiling above the installation surface, and the cable is wired in a conduit. This allows the cable to be run to the electrical equipment without the wiring path being in the way above the mast. In the electric device installation structure of claim 14, particularly, at least a part of the electric conduit is flexible. As a result, even if the support pole and the cable rack sway in different directions during an earthquake, the flexible portion of the electric conduit absorbs the difference in the sway between the two, preventing damage to the support pole and the cable rack. In the electric device installation structure of claim 15, the electric conduit is arranged upward along the erection direction of the support.

[0016] The electrical equipment installation structure of claim 16 comprises: A support is erected on an installation surface, and an electrical device is attached to an upper end side of the support, A flexible conduit is connected to the other side of the pole, the flexible conduit forming a wiring path for wiring a cable from a structure located on an outer surface or inside of the structure to the pole, the other side being different from the side on which the electrical equipment is installed; and The cable wired inside the conduit passes through an internal space provided in the support and is connected to the electrical equipment. This allows the cable to be routed over a nearby structure and then run a short path to the support pole. Effect of the Invention

[0017] In the present invention, the inlet is formed above the installation surface and above half the erected length of the pole, the conduit through which the cable is inserted is connected to the connection part of the pole from above, the cable wired from the power supply equipment is inserted into the inlet from the side or above the pole, and the cable is not laid on a path to a parking lot or the like on the way to the pole, so that the cable and conduit do not get in the way and impede the passage of people, vehicles, etc. on the way. Also, the cable can be wired to electrical equipment without taking special protective measures such as covering the top of the cable with an enclosure on the way. [Brief description of the drawings]

[0018] [Figure 1] FIG. 2 is a front view of the support pillar of the first embodiment of the present invention. [Diagram 2] FIG. 2 is a perspective view of the support column of FIG. 1. [Diagram 3] 2A and 2B are perspective views of the support pole of FIG. 1, in which FIG. 2A shows a state before the conduit connector is attached, and FIG. 2B shows a state after the connector is attached. [Figure 4] 2 is a perspective view of the support column of FIG. 1 as seen obliquely from below. [Diagram 5] 3(b) is a cross-sectional view taken along line AA in FIG. [Figure 6] 6A and 6B show the conduit connector of FIG. 5, in which FIG. 6A is an exploded vertical sectional view and FIG. 6B is a perspective view. [Figure 7] FIG. 11 is a front view of a support pillar according to a second embodiment of the present invention. [Figure 8] 8 is a perspective view of the support in FIG. 7, in which (a) shows a state before the electric conduit connector is attached, and (b) shows a state after the connector is attached. [Figure 9] 8(b) is a cross-sectional view taken along line BB in FIG. [Figure 10] FIG. 13 is a perspective view of a support pillar according to a third embodiment of the present invention. [Figure 11] FIG. 11 is a front view of the support column of FIG. [Figure 12] 12A and 12B show the conduit connector of FIG. 11, in which (a) is an enlarged cross-sectional view of a main portion, and (b) is a perspective view of the connector fixture of (a). [Figure 13] 11A and 11B are perspective views showing a support pillar according to another embodiment of the present invention, in which FIG. 11A is a perspective view seen from diagonally above, and FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] First Embodiment First, a support column according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 5, the support 1 of this embodiment is erected on an installation surface 70 such as the ground of a facility such as an underground parking lot, a self-propelled multi-storey car park, or a gas station, and an electric device 50 is attached to the upper end side. The support body 10 has a cylindrical part 11 extending in the erecting direction at the upper end side, and a hollow internal space 12 is provided over the entire axial direction of the cylindrical part 11. In the internal space 12 of the support body 10, a through hole 26 is formed to which the electric device 50 can be attached, and an inlet 28 to which a cable 60 can be introduced to the inside is formed at a position different from the through hole 26, above the installation surface 70 and above half the erected length of the support 1. The inlet 28 is provided with a connection part 36 to which an electric conduit 61 that configures the wiring path of the cable 60 inside can be connected. In this embodiment, an EV charging outlet is exemplified as the electric device 50. Each member will be described below.

[0020] In Figures 1 and 2, cables 60 are laid in a wiring path on a ladder-shaped cable rack 80 suspended from a ceiling 83 via hanging bolts 82, and hanging down from there, protected by an electrical conduit 61, inserted into internal space 12 from the top of a support 1 erected on a mounting surface 70 on the ground of the parking lot, and connected to electrical equipment 50.

[0021] In this embodiment, the electric conduit 61 that houses and protects the cable 60 is made of a synthetic resin and is a corrugated pipe in a bellows shape in which large diameter parts 62 and small diameter parts 63 are alternately formed in the pipe axis direction over the entire axial length, and on the outer surface, peak parts 64 and valley parts 65 are alternately formed in the pipe axis direction, and is flexible over the entire length. The electric conduit 61 is piped between the cable rack 80 and the connection part 36 provided on the upper part of the support 1, and its upper end part is fixed to the cable rack 80 by being tied to a sub-girder 81 of the cable rack 80 using a cable tie or the like, although not shown in the figure. Note that FIG. 2 also shows a support 1 of a second embodiment described later, and the support 1 of the first embodiment is the support 1 on the right side of FIG. 2.

[0022] As shown in Figures 3 to 5, the pillar body 10 has a tubular section 11 made of a square cylinder extending in the vertical direction, and a hollow internal space 12 is continuously formed in the tubular section 11 throughout the entire vertical direction. The internal space 12 is entirely surrounded by a peripheral wall 13. An upper end opening 15 of a top portion 14, which is the upper end of the pillar body 10, is integrally closed by a top plate 16 made of a flat plate.

[0023] A fixing part 19 is provided at the lower end opening 18 of the bottom 17 of the pillar body 10, which is placed on the installation surface 70. The fixing part 19 is made of a square fixing plate 20 having an area larger than the lower end opening 18 of the pillar body 10. As shown in FIG. 4, the fixing part 19 has a square hole 21 in the center, which is approximately the same size and shape as the lower end opening 18 of the pillar body 10, and approximately trapezoidal cut-and-raised pieces 22 are cut and raised vertically upward from each of the four peripheral edges of the square hole 21, and an insertion hole 22a is provided in the center of each cut-and-raised piece 22. In addition, fixing holes 20a through which anchor bolts are inserted are formed at the four corners of the fixing plate 20 of the fixing part 19, and the pillar 1 is fixed to the installation surface 70 by inserting the anchor bolts into these holes and driving them into the ground. As shown in Figure 5, a through hole 25 through which a bolt 23 is inserted is formed in the lower peripheral wall 13 of the pillar body 10 at a position opposite to the insertion hole 22a of the cut-and-raised piece 22 of the fixed portion 19. The pillar body 10 is assembled to the fixed portion 19 by inserting the bolt 23 into the through hole 25 of the pillar body 10 and the insertion hole 22a of the cut-and-raised piece 22 and tightening the nut 24.

[0024] As shown in Fig. 4, a rectangular through hole 26 that connects the internal space 12 to the outside is formed at the upper end side of one of the four peripheral walls 13 of the pillar body 10. A pair of mounting holes 27 having female threads for receiving mounting screws for mounting the electrical device 50 are provided at the upper and lower centers of the through hole 26 in the width direction.

[0025] Here, the electrical device 50 has an EV charging outlet 51 built in a cover 53 shown in FIG. 5, and the outlet 51 is attached to a central opening 52a of a rectangular-frame-shaped equipment mounting frame 52. The equipment mounting frame 52 has screw insertion holes 52b formed at both upper and lower ends, and mounting screws are inserted through the holes and screwed into a pair of mounting holes 27, 27 around the upper and lower ends of the through hole 26, thereby attaching the electrical device 50 to the through hole 26. The cover 53 has an opening on the back side that is slightly larger than the through hole 26, and covers the entire through hole 26 from the front side. The lower side of the two outer plates bent into a dogleg shape on the front side of the cover 53 is a lid 54 that can be rotated up and down around a bent top 53a, and when using the electrical device 51, the lid 54 can be opened toward the front side to insert a plug. The cover 53 prevents rainwater from entering and prevents dust and insects from entering. Furthermore, since the lid portion 54 is provided on the lower side of the cover 53 which is bent into a L-shaped plate, the infiltration of rainwater is further prevented.

[0026] In the internal space 12 of the support body 10, an inlet 28 capable of introducing the cable 60 to the inside is formed at a position different from the through hole 26 in the circumferential direction, above the installation surface 70, and on the upper end side that is above half the erection length of the support 1. Specifically, as shown in Figs. 3(a) and 5, the inlet 28 is formed at approximately the same height as the through hole 26 in the erection direction on the surface opposite to the surface on which the through hole 26 is provided among the four peripheral walls 13 of the support body 10, and is formed in approximately the same rectangular shape and size as the through hole 26. A pair of screw holes 29 having female threads to which screws 41 for attaching the connector fixing body 32 described later are attached are provided at the upper and lower width centers of the inlet 28. Here, the erection length of the support 1 refers to the length of the exposed part above the installation surface 70 in the support 1, and refers to the length from the fixing part 19 fixed to the erection surface 70 to the top 14.

[0027] A conduit connector 30 having a connection part 36 to which a conduit 61 can be connected is attached to the inlet 28. As shown in Figures 5 and 6, the conduit connector 30 is formed separately from the strut body 10 and is composed of a conduit connector 31 made of a connector and having the connection part 36, and a connector fixture 32 for attaching the conduit connector 31 to the inlet 28. The conduit connector 30 is separably attached to the strut body 10 using a screw 41 for the connector fixture 32.

[0028] The conduit connector 31 has a circular cylindrical outer tube 33 that receives an end of the conduit 61 inside. In detail, the outer tube 33 of the conduit connector 31 is formed of an insertion side cylindrical portion 33a arranged on the side where the conduit 61 is inserted, and an outer tube main body portion 33b arranged below the insertion side cylindrical portion 33a. A tube insertion side opening 34 is formed in the insertion side cylindrical portion 33a. A plurality of rectangular plate-like elastic pieces 35 are arranged at predetermined intervals in the circumferential direction along the inner wall of the insertion side cylindrical portion 33a. Furthermore, an engaging claw 35a that engages with a valley portion 65 of the conduit 61 is formed at the tip portion of each elastic piece 35 on the side opposite to the tube insertion side. When the conduit 61 is pushed into the tube insertion side opening 34 of the conduit connector 31, the elastic piece 35 elastically bends in the outer circumferential direction around the tube insertion side as an axis to accommodate the insertion of the peak portion 64 of the conduit 61, and then the engaging claw 35a engages with the valley portion 65 at the end of the conduit 61, thereby connecting the conduit 61 to the conduit connector 31.

[0029] Incidentally, the conduit connector 31 can also be configured such that the elastic piece 35 is elastically expanded in the outer circumferential direction by rotating the insertion side cylindrical portion 33a provided with the elastic piece 35 by a predetermined angle in the circumferential direction to release the engagement of the engagement claws 35a with the connected conduit 61, thereby removing the conduit 61 from the conduit connector 31. In the conduit connector 31, the portion where the elastic piece 35 to which the conduit 61 can be connected is formed constitutes the connection portion 36. Incidentally, the entire conduit connector 31 may constitute the connection portion 36.

[0030] At the lower side, which is the side opposite to the pipe insertion side, of the electric conduit connector 31, a step portion 37 is formed on the lower side of the outer tube portion 33, and below that a reduced diameter tube portion 38 with a smaller diameter is formed. The reduced diameter tube portion 38 is connected from above to the connector fixing body 32 which is attached to the inlet 28 of the pillar main body 10.

[0031] The connector fixing body 32 comprises a flat base 39 with abutment parts 40 consisting of flanges that abut against the periphery of the inlet 28 so as to surround the entire inlet 28, and a connector mounting part 42 that protrudes laterally from the base 39 and to which the conduit connector 31 is attached. The base 39 has a communication port 39a formed in the center that is substantially the same shape and size as the inlet 28, and above and below the communication port 39a, the abutment parts 40 extend along the peripheral wall 13 of the support body 10, and a screw insertion hole 40a is formed in the center of each of the upper and lower abutment parts 40.

[0032] The connector mounting portion 42 is formed with a horizontal plate portion 43 that projects horizontally from the lower side of the upper abutment portion 40, and a curved plate portion 44 of a constant width that is curved downward from the tip of the horizontal plate portion 43, and a connector mounting hole 43a is formed in the center of the horizontal plate portion 43 to which the reduced diameter tube portion 38 of the electric conduit connector 31 is attached. The electric conduit connector 31 is fixed to the connector fixture 32 by bonding the step lower surface 37a of the step portion 37 to the periphery of the connector mounting hole 43a by adhesive. The curved plate portion 44 smoothly guides the cable 60 inserted from above along the inner wall of the curved surface to the inlet 28.

[0033] As a result, the connector fixing body 32 is attached laterally to the peripheral wall 13 at the upper end of the pillar body 10 so as to block the inlet 28, and the conduit connector 31 is connected in a state in which the end of the connected conduit 61 is aligned in the vertical direction of the pillar body 10.

[0034] The conduit connector 30, which is composed of the conduit connector 31 equipped with the connection portion 36 and the connector fixing body 32, is fixed to the inlet 28 and guides the cable 60 in the conduit 61 from the conduit connector 31 through the connector mounting portion 42 to the inlet 28 and further to the internal space 12 of the pillar body 10. In addition, the conduit connector 30 broadly refers to a device that connects the conduit 61 to the inlet 28 of the pillar body 10, and also includes a device in which the conduit connector 31 is connected directly to the inlet 28 alone without including a connector fixing body 32, as in the second embodiment described later.

[0035] Next, a method for mounting the electric device 50 on the support pole 1 of this embodiment configured as described above and connecting the cable 60 thereto will be described. First, the conduit connector 30 for connecting the conduit 61 to the inlet 28 of the pole 1 fixed to the installation surface 70 is attached. To do this, first, screws 41 are inserted into a pair of upper and lower screw insertion holes 40a provided in the abutting portion 40 of the base 39 of the connector fixing body 32, and screwed into a pair of upper and lower screw holes 29, 29 provided above and below the inlet 28 of the pole body 10 to attach the connector fixing body 32 to the inlet 28. Next, the reduced diameter tube portion 38 of the conduit connector 31 is inserted from above into the connector mounting hole 43a of the connector mounting portion 42, and the step lower surface 37a is placed on the peripheral upper surface of the connector mounting hole 43a of the horizontal plate portion 43 of the connector mounting portion 42 and fixed by adhesion. As a result, the conduit connector 30 is attached to the inlet 28 as shown in FIG. 5.

[0036] Separately from this, a conduit 61 is hung from a cable rack 80 suspended via a hanging bolt 82 to a ceiling 83 of a parking lot or the like, and its lower end is inserted from the tube insertion side opening 34 of the conduit connector 31 while being pressed into the outer tube portion 33, and the engaging claw 35a of the elastic piece 35 of the conduit connector 31 is engaged with the valley portion 65 on the outer surface of the conduit 61 to connect to the connection portion 36 of the conduit connector 31. Then, the cable 60 laid in the wiring path of the cable rack 80 is inserted from the opening at the upper end of the conduit 61 and passed vertically downward through the conduit 61, and then the tip portion is moved from inside the conduit connector 31 along the curved inner wall of the curved plate portion 44 of the connector mounting portion 42 while passing through the connector mounting portion 42, and further fed into the internal space 12 from the introduction port 28 of the pillar body 10.

[0037] Next, the tip of the cable 60 is passed through the through hole 26 located on the opposite side of the support body 10 and temporarily pulled out to the outside of the support body 10. Then, the tip of the cable 60 is connected to the terminal on the back side of the outlet 51 for EV charging, which is the electrical device 50 previously attached to the equipment mounting frame 52. After that, while pushing the tip of the cable 60 back into the internal space 12, the mounting screw is inserted into the screw insertion hole 52b of the equipment mounting frame 52 of the electrical device 50, and screwed into the mounting holes 27 on the upper and lower peripheries of the through hole 26 to attach the equipment mounting frame 52 to the through hole 26. Next, the cover 53 is fitted and attached from the outside of the equipment mounting frame 52, covering the entire outlet 51 and the equipment mounting frame 52. As a result, as shown in Figures 1 and 2, the cable 60 laid in the wiring path of the cable rack 80 is inserted into the hanging electric conduit 61 to wire it inside the support body 10, the electrical device 50 is attached to the support 1, and the work of connecting the cable 60 to it is completed.

[0038] Next, the operation of the support pillar 1 of the first embodiment will be described. The pillar 1 has an inlet 28 formed at the upper end side of the pillar body 10, above the installation surface 70, and the conduit 61 through which the cable 60 is inserted hangs down from the cable rack 80 and is connected to the connection part 36 of the pillar 1 from above. The cable 60 is inserted into the inlet 28 from the side of the pillar 1, and the cable 60 and the conduit 61 do not need to be laid along a passageway in a parking lot or the like on their way to the pillar 1, so that the cable 60 and the conduit 61 are prevented from getting in the way and interfering with the passage of people, vehicles, etc.

[0039] Furthermore, since the inlet 28 is formed on the upper end side of the pillar body 10 and is located close to the electrical equipment 50 attached to the through hole 26 also formed on the upper end side of the pillar body 10, the wiring path of the cable 60 inside the pillar body 10 can be made shorter compared to the conventional method of wiring the cable 60 from the inlet at the bottom of the lower end of the pillar body 10 to the internal space 12.

[0040] Furthermore, the introduction port 28 of the support 1 has approximately the same height as the through hole 26 in the erecting direction in the support body 10, and is formed facing the through hole 26 on the peripheral wall 13 on the opposite side to the through hole 26. Therefore, since it is offset in the circumferential direction from the electric device 50 attached to the through hole 26, the electric conduit connector 30 attached to the inlet 28 does not get in the way when the electric device 50 is operated, and the connection part 36 provided at the inlet 28 is not noticeable. Also, the height balance with the electric device 50 is achieved, and the appearance is good. Furthermore, the connection portion 36 provided at the inlet 28 is located on the opposite side to the electrical device 50 and in an inconspicuous position, so that it looks good. Furthermore, since the wiring path from the inlet 28 to the electric device 50 provided in the through hole 26 is linear, the cable 60 is easy to wire and the cable 60 can be wired from the inlet 28 to the electric device 50 in the shortest distance.

[0041] The connection part 36 of the conduit connector 31 is connected with the axis of the outer tube part 33, which receives the end of the conduit 61 inside, parallel to the erection direction of the pillar body 10, and the lower end of the connected conduit 61 is connected along the erection direction of the pillar body 10, so that the conduit 61 is neatly arranged in the erection direction together with the pillar body 10, and the appearance around the connection part is good. Also, the conduit 61 hardly protrudes laterally from the pillar body 10, so it is unlikely to impede the passage of people.

[0042] In addition, the cable 60 laid in the wiring path of the cable rack 80 suspended from the ceiling 83 is wired in the electric conduit 61 hanging down from the cable rack 80, so that the cable 60 can be laid up to the electric device 50 above the support 1 without the electric conduit 61 getting in the way.

[0043] Furthermore, since the conduit 61 is flexible, even if the pillar 1 and the cable rack 80 sway differently during an earthquake, the flexible portion of the conduit 61 absorbs the difference in the sway between them, preventing damage to the pillar 1 and the cable rack 80. Even if the conduit connector 31 provided on the side or upper end of the pillar 1 is not located directly below the attachment position of the upper end of the conduit 61 suspended from the cable rack 80 above, the flexure of the flexible conduit 61 can be utilized to smoothly connect the lower end of the conduit 61 to the conduit connector 31 from above.

[0044] Second Embodiment Next, a support column according to a second embodiment of the present invention will be described with reference to FIGS. The pillar 1 of the second embodiment differs from the pillar 1 of the first embodiment only in the position of the inlet 28 for the cable 60 and the attachment position of the electric conduit connector 31, and while the inlet 28 of the first embodiment is formed facing laterally on a part of the peripheral wall 13 on the upper end side of the pillar body 10, the inlet 28 of the second embodiment is formed facing upward on the top plate 16 of the top 14 of the pillar body 10 as shown in Fig. 8 etc. The following will mainly explain the points that are different from the first embodiment.

[0045] In FIG. 8(a), the support 1 has a circular inlet 28 formed in the center of the top plate 16 of the top 14 of the support body 10. The inlet 28 has an inner diameter slightly larger than the outer diameter of the reduced diameter tube portion 38 at the lower end of the electric conduit connector 31. The electric conduit connector 31 is fixed to the top 14 of the support body 10 as shown in FIG. 8(b) and FIG. 9 by inserting the reduced diameter tube portion 38 into the inlet 28 from above and placing and adhering the step lower surface 37a on the upper surface of the periphery of the inlet 28 on the top plate 16. When the electric conduit 61 is connected to the electric conduit connector 31, the lower end of the electric conduit 61 is in a state along the erection direction of the support body 10. The electric conduit connector 31 of the second embodiment is directly attached to the inlet 28 without the connector fixing body 32 used in the first embodiment. Here, in other words, the inlet 28 of the second embodiment has an inner-outer penetrating direction aligned with the erection direction, and is shifted by 90° from the inner-outer penetrating direction of the through hole 26 .

[0046] To attach an electric device 50 to the support pole 1 of the second embodiment and connect a cable 60, the lower end of the conduit 61 is inserted into the conduit connector 31 provided at the inlet 28 of the top 14 of the support body 10 while pressing it from the tube insertion side opening 34 of the conduit connector 31 in the same manner as in the first embodiment, and connected to the connection part 36 of the conduit connector 31. After connection, the conduit 61 is piped between the connection part 36 of the conduit connector 31 and the cable rack 80, and is piped upward along the erection direction of the support pole 1 relative to the conduit connector 31, with the axis of the lower end of the conduit 61 being parallel to the erection direction of the support pole 1. 2 and 7, the cable 60 laid in the wiring path of the cable rack 80 is inserted from above into the electric conduit 61 suspended from the cable rack 80, and is drawn from the electric conduit connector 31 through the inlet 28 into the internal space 12 of the pillar body 10, and connected to the electric device 50. In addition, in FIG. 2, the pillar 1 of the second embodiment is the left pillar 1.

[0047] In the support pillar 1 of the second embodiment, the electric conduit 61 can be connected directly above the support pillar body 10, and the electric conduit 61 is unlikely to interfere with obstacles present to the sides of the piping path.

[0048] Here, the configurations in the first and second embodiments are as follows: A support 1 is erected on an installation surface 70, and an electric device 50 is attached to the upper end side of the support 1. The lower end of the electric conduit 61 hanging down from above is connected to a location away from the installation surface 70, and the cable 60 wired inside the electric conduit 61 passes through the internal space 12 provided in the support 1 and is connected to the electric equipment 50, thereby forming an installation structure for the electric equipment.

[0049] Third Embodiment Next, a support pole and an electrical equipment installation structure according to a third embodiment of the present invention will be described with reference to Figs.

[0050] In the third embodiment, as shown in Fig. 10, a protective pipe 66 is laid horizontally along a wall surface 84 of a building, which is a structure located on the opposite side of the pole 1 from the side on which the electrical device 50 is installed, and is connected to a relay distribution box 85, and an electric conduit 61 is laid horizontally from the distribution box 85 to the pole 1. The protective pipe 66 is made of a metal pipe, a synthetic resin pipe, or the like, and protects the cable 60 wired inside. The protective pipe 66 may be laid inside the wall of the building, or may be the same as the electric conduit 61. The electric conduit 61 is flexible, as in the first and second embodiments.

[0051] The pole body 10 of the third embodiment is almost the same as that of the first embodiment, but the conduit connector is different from that of the first embodiment. The conduit connector 30 of the first embodiment is composed of a conduit connector 31 and a connector fixture 32, whereas the conduit connector 45 of the third embodiment is composed of a conduit connector 31 and a connector fixture 46, and the conduit connector 31 is the same but the connector fixture is different. However, the conduit connector 31 may also be configured differently from that of the first and second embodiments. In the conduit connector 30 of the first embodiment, the conduit 61 is piped upward along the erection direction of the pillar body 10, but in the conduit connector 45 of the third embodiment, as shown in Figures 10 and 11, it is attached to an inlet 28 formed in the peripheral wall 13 on the upper end side of the pillar body 10 opposite to the through hole 26 to which the electric device 50 is attached, and the conduit 61 is piped laterally in the peripheral wall 13 of the pillar body 10, perpendicular to the erection direction of the pillar body 10. The inlet 28 is formed in a circular shape.

[0052] As shown in Fig. 12, the connector fixing body 46 of the electric conduit connector 45 includes a rectangular plate-shaped base 47 that covers the entire inlet 28 of the pole body 10, and a short circular tube-shaped connector mounting part 49 that is erected at the center of the base 47 and to which the electric conduit connector 31 is attached. The base 47 has a circular opening of approximately the same size as the connector mounting part 49 at its center, and abutment parts 48 that abut entirely against the peripheral wall 13 of the periphery of the inlet 28 are formed outside the opening. A pair of upper and lower screw insertion holes 48a through which the screws 41 are inserted are provided at the center of the upper and lower ends of the abutment parts 48 in the width direction. The inner diameter of the connector mounting hole 49a on the opposite side of the base 47 in the connector mounting part 49 is slightly larger than the outer diameter of the reduced diameter tube part 38 at the lower end of the electric conduit connector 31.

[0053] To attach an electric device 50 to the support 1 of the third embodiment and connect a cable 60, screws 41 are inserted into a pair of upper and lower screw insertion holes 48a, 48a provided in a base 47 of the connector fixing body 46, and are attached to a pair of upper and lower screw holes 29, 29 provided above and below the inlet 28 of the support body 10, thereby attaching the connector fixing body 46 to the inlet 28. Next, the reduced diameter tube portion 38 of the electric conduit connector 31 is inserted from the horizontal side into the connector mounting portion 49, and the step lower surface 37a is placed on the opening end surface 49b of the connector mounting hole 49a of the connector mounting portion 49 and adhesively fixed. Note that the electric conduit connector 45 may be attached to the inlet 28 by using the screws 41 after the electric conduit connector 31 is adhesively fixed to the connector fixing body 46 first.

[0054] Next, the lower end of the conduit 61 is inserted from the tube insertion side opening 34 of the conduit connector 31 and connected to the connection portion 36 of the conduit connector 31. After connection, the conduit 61 is piped between the connection portion 36 of the conduit connector 31 and the switch box 85. Next, the cable 60 laid in the wiring path of the protective tube 66 and the conduit 61 is passed from the conduit connector 31 through the inlet 28 and drawn into the internal space 12 of the pillar body 10, and connected to the electrical equipment 50.

[0055] The installation structure of the pillar 1 and electrical equipment in the third embodiment allows wiring to be performed to the electrical equipment 50 on the pillar 1 by utilizing nearby structures, and therefore the wiring path of the electrical conduit 61 can be made shorter than in the conventional case in which the electrical conduit 61 from the distribution box 85 is routed downward along the wall surface 84 of the building and the cable 60 in the electrical conduit 61 is introduced into the internal space 12 from the lower end side of the pillar 1 to be connected to the electrical equipment 50.

[0056] Here, each configuration of the first to third embodiments described above is as follows: The electrical equipment installation device includes a support pole 1 that is erected on an installation surface 70 and has an electrical equipment 50 attached to its upper end, and a conduit connector 30, 45 that is fixed to the support pole 1, Support 1 is The support body 10 has a cylindrical portion 11 extending in the vertical direction at least at the upper end side, and a hollow internal space 12 is provided in the cylindrical portion 11. A through hole 26 that connects the internal space 12 to the outside is formed through a portion of the peripheral wall 13 that circumferentially surrounds the internal space 12, and an electric device 50 can be attached to the through hole 26. The internal space 12 has an inlet 28 through which the cable 60 can be introduced, formed above half the erected length of the support 1. The conduit connectors 30 and 45 are It has a connection part 36 to which a conduit 61 that forms the wiring path of the cable 60 inside can be connected, and is fixed to the inlet 28 to form an electrical equipment installation device that forms a wiring path of the cable 60 that continues from the inside of the conduit 61 to the internal space 12 via the inlet 28.

[0057] From the configurations of the conduit fixing bodies 32, 46 of the first and third embodiments, a conduit connector fixing body having the following technical concept can also be grasped. That is, A conduit connector fixture fixed to an inlet 28 opening on a side of a hollow cylindrical support 1, The conduit connector fixed body is characterized in that it comprises a base (39, 47) having abutment portions (40, 48) that abut against the periphery of the inlet (28) so as to surround the inlet (28), and connector mounting portions (42, 49) provided on the base (39, 47) for mounting an electric conduit connector (31), and when fixed to the support (1), it is possible to wire a cable (60) from inside an electric conduit (61) connected to the attached electric conduit connector (31) through the inlet (28) into the interior of the support (1).

[0058] <Another example> Next, another example of the support pole and the electrical equipment installation structure of the first and second embodiments will be described. In Fig. 13, the support of the other example is provided with a fixing part 2a fixed to the installation surface 70, is erected on the installation surface 70, has a square tubular part 11 extending in the erecting direction at the upper end thereof, and is provided with a hollow internal space 12 in the tubular part 11. The support body 10 is provided with a circular pipe-shaped support 2 erected from its lower surface to the installation surface 70, and is installed on the installation surface 70 by the fixing part 2a provided at its lower end. That is, the support 1 of the first embodiment is formed with the tubular part 11 made of a square tubular body with a constant cross section over the entire erecting direction, whereas the support of the other example is formed with the tubular part 11 only at the upper end side in the erecting direction, and the part below the tubular part 11 is composed of the circular pipe-shaped support 2.

[0059] Furthermore, the pillar body 10 of the pillar of the other example has through holes 26 formed on three of the four peripheral walls 13, through which the electric devices 50 can be attached, and three electric devices 50 are attached. In addition, an inlet 28 capable of introducing the cable 60 to the inside is formed at the same height in the vertical direction as the through hole 26 on one of the four peripheral walls 13 other than the three faces on which the through holes 26 are formed. The inlet 28 is attached with the same electric conduit connector 30 as that of the first embodiment. A connector 2d consisting of a disk 2e and a short cylinder 2f is fixed to the lower end surface of the pillar body 10, and the pillar body 10 and the pillar 2 are connected vertically via the connector 2d. The lower end of the pillar 2 is provided with a fixing part 2a consisting of a disk 2b and a short cylinder 2c having a configuration substantially similar to that of the connector 2d. However, the disk 2b has an outer diameter larger than the disk 2e of the connector 2d. This configuration also constitutes an installation structure for electrical equipment.

[0060] Note that Figure 13 shows another example of the first embodiment, but if the configuration of the above-mentioned pillar body 10 and pillar 2 is another example of the second embodiment, in Figure 13, the electric conduit connector 31 is connected to the top 14 of the pillar body 10 instead of the side thereof.

[0061] Here, by expressing each component of the alternative examples with different terms, the above-described first and second embodiments and alternative examples can be expressed in different ways as follows. That is, An electric device 3 having a support 1, 2 with a fixing portion 19, 2a fixed to an installation surface 70 and an electric device 50, 55 with an operation portion operated by a user is fixed to the installation surface 70 with the operation portion disposed above and away from the installation surface 70, An electrical equipment installation structure in which the lower end of an electrical conduit 61 hanging down from above is connected to an electrical equipment device 3, and a cable 60 wired inside the electrical conduit 61 is connected to electrical equipment 50, 55.

[0062] Among these, the "pillar 2" in the alternative example is, as described above, a circular pipe-shaped pillar extending from the lower surface of the pillar body 10 to the installation surface 70, and the "electrical device 55" in the alternative example is the entire portion placed on the disk e of the connector 2d, which is made up of the pillar body 10, the three electrical devices 50, and the conduit connector 30. The electrical device 3 includes the pillar 1 and the electrical device 50 in the first and second embodiments, and includes the pillar 2 and the electrical device 55 in the alternative example.

[0063] Here, if the electrical device 50 is an EV charging outlet, the operation unit corresponds to the outlet socket, push buttons, switches, etc., and if the electrical device 50 is a parking meter, the operation unit corresponds to the coin slot, receipt issuing button, etc.

[0064] <Modification> Incidentally, in the above first to third embodiments, one through hole 26 and one inlet 28 are formed in the pillar body 10, but the present invention is not limited to this when it is implemented, and a plurality of through holes 26 may be formed as in another example, and a plurality of inlets 28 may also be formed. For example, two through holes 26 and two inlets 28 may be formed, and the cables 60 inserted into the two inlets 28 may be separately connected to the electric devices 50 attached to the two through holes 26, respectively.

[0065] Furthermore, the through holes 26 and the inlets 28 are formed in a rectangular or circular shape, but are not limited to these shapes, and when multiple inlets are formed, they may be different shapes, or may be formed at different heights in the erection direction on the peripheral wall 13 of the support body 10. Furthermore, the inlets 28 and the through holes 26 may be formed on the same surface of the peripheral wall 13. When multiple inlets 28 are formed, they may be formed on the peripheral wall 13 and the top 14 of the support body 10.

[0066] The inlet 28 in each of the above embodiments can also be used as the through hole 26 in which the electrical device 50 is installed. In this case, the support 1 has a support body 10 formed as a hollow tubular section 11 with an internal space 12 continuing throughout the entire erection direction, and a cable 60 connected to an electric device 50 can be introduced from the lower end side and wired inside the support body 10 up to the through-hole 26. The introduction port 28 has the same shape as the through-hole 26, is offset in the circumferential direction from the through-hole 26, and is formed at a position where its height in the erection direction overlaps with the through-hole 26, making it possible to attach an electric device different from the electric device 50 attached to the through-hole 26.

[0067] This support 1 can also be used when installing a total of two electrical devices 50 by attaching an electrical device 50 to the through hole 26 and attaching another electrical device different from the electrical device 50 to the inlet 28 without attaching the electric conduit connector 30.

[0068] In addition, although the introduction port 28 in each of the above-described embodiments is formed at a position with approximately the same height in the vertical installation direction as the through hole 26, this is not limited thereto, and the introduction port 28 may be formed at a different position with a different height from the through hole 26. For example, in the case where one through hole 26 is formed on each of the four peripheral walls 13 and a total of four electric devices 50 are attached at the same height to different peripheral walls 13, the introduction port 28 may be formed at a higher position than each of the through holes 26.

[0069] Furthermore, in the first to third embodiments described above, the inlet 28 is formed in the peripheral wall 13 opposite the through hole 26 on the four sides of the peripheral wall 13 of the pillar main body 10 consisting of a rectangular cylinder, but it may be formed in another peripheral wall 13 that is 90° different from the peripheral wall 13 in which the through hole 26 is formed, and in another example in which a plurality of through holes 26 are formed, the inlet 28 is formed in a surface that is shifted by 90° from the through hole 26, in addition to the surface that faces the through hole 26.

[0070] Next, in the support 1 of the first to third embodiments described above, the tubular portion 11 is formed in a rectangular tube shape, but this is not limited to this and may be formed in a polygonal tube shape such as a triangle, pentagon, or octagon, or a cylindrical shape, etc. Further, in the above embodiment, the tubular portion 11 of the support 1 is formed to have the same cross-sectional shape over the entirety in the erecting direction, but this is not limited thereto, and the shape may be different halfway along the erecting direction.

[0071] Furthermore, the tubular portion 11 is provided over the entire vertical direction of the pillar 1, but as in the above-mentioned other example, it may be provided only on a part of the vertical direction, such as only on the upper end side or only on the middle part of the pillar 1, and not on other parts of the vertical direction, or it may be provided in multiple parts spaced apart in the vertical direction.

[0072] In addition, the pole body 10 has a lower end opening 18 formed at the bottom 17 through which the cable 60 can be introduced, but the bottom 17 may not have the lower end opening 18, and the cable 60 may not be inserted from the lower end. In this case, it is possible to prevent dust, underground moisture, insects, etc. from flowing into or entering the internal space 12 through the lower end opening of the pole body 10.

[0073] Furthermore, the conduit connector 30 of the first and second embodiments is attached to the peripheral wall 13 so that the axis of the outer tube 33 of the connection part 36 of the conduit connector 31 is parallel to the erection direction of the pole body 10, but this is not limited thereto, and the axis of the outer tube 33 may be inclined within a range of 45° to the erection direction of the pole body 10. The reason for the inclination within 45° is that if the inclination exceeds this range, there is a high possibility of interference with surrounding structures and passage spaces. It is more preferable that the inclination of the axis of the outer tube 33 is within 30°. If the outer tube 33 is inclined, the conduit 61 is bent near the outer tube 33 to avoid interference with the surroundings.

[0074] In the connection portion 36 of each of the above embodiments, the conduit connector 31 is a connector made of synthetic resin, and the conduit 61 is connected by engaging the engaging claw 35a of the elastically deforming elastic piece 35 with the lower end of the conduit 61, but the conduit 61 may be connected to the inlet 28 by any method as long as a separation prevention means is provided to prevent easy separation, such as a joining means using a pressing bolt that radially presses the outer surface of the conduit 61 at the tip, a connecting means such as tying with a cable tie, or a joining means such as adhesion or welding. In addition, the conduit connector 31 is not limited to the connector shown in the figures.

[0075] Furthermore, in each of the above embodiments, the conduit connector 31 is glued to the connector mounting hole 43a, but it is also possible to form a male thread on the outer surface of the reduced diameter tubular portion 38 and attach a lock nut with a female thread from below, on the opposite side of the connector mounting hole 43a, to fix it, or to form a female thread on the inner surface of the connector mounting hole 43a and directly screw it in to fix it.

[0076] In addition, the electric conduit 61 is formed of a corrugated pipe made of synthetic resin and has flexibility over its entire length, but only a portion of it may have flexibility. Here, "a part" refers to both a part in which a plurality of electric conduits 61 are connected, one or more of which are flexible and the others are not flexible like metal tubes, and a part in which only one electric conduit 61 is used, and that one electric conduit 61 has both flexible and inflexible parts formed along the way.

[0077] In each of the above embodiments, a corrugated pipe made of synthetic resin is used as the electric conduit 61, but other pipes may be used, such as a metal pipe or a straight pipe with a smooth outer surface.

[0078] Furthermore, the connection portion 36 in each embodiment is attached to the support body 10 and connects the electric conduit 61 via a separate electric conduit connector 30, 45 which is separable, but is not limited to this and may be formed integrally with the support body 10 and inseparable. For example, although not shown, a short cylinder of approximately the same inner diameter as the inlet 28 of the peripheral wall 13 of the pillar body 10 can be integrally formed to protrude outward, and the end of the reduced diameter tubular portion 38 of the conduit connector 31 can be glued and fixed to the outer or inner wall surface of this short cylinder with an adhesive to form the connection portion; in this case, the connection portion is provided inseparably to the pillar body 10.

[0079] In addition, a straight tube made of synthetic resin, metal, etc. with a smooth outer surface can be used as the electric conduit for the short cylinder that protrudes integrally from the peripheral wall 13 of the pillar body 10, and an adhesive can be applied to the outer or inner surface of the end of the tube to directly glue and fix it to the short cylinder. In this case, the connection part consisting of the short cylinder is also provided so as to be inseparable from the pillar body.

[0080] The inlet 28 and the through hole 26 do not necessarily have to be located at the upper end of the pillar body 10, and may be located at the middle position in the erection direction or at the lower end. Also, the pillar 1 may introduce the cable 60 into the internal space 12 from the lower end of the pillar body 10, provided that the cable 60 is not laid across the passage of people, vehicles, etc. in a parking lot, a gas station, etc.

[0081] In addition, the conduit connector 30 may be connected to the connector mounting portion 42 in a state in which the lower end of the reduced diameter tube portion 38 of the conduit connector 31 is not adhesively fixed to the connector mounting portion 42, and the tube axis of the reduced diameter tube portion 38 can be freely tilted within the connector mounting hole 43a. In this case, the conduit connector 31 is rotated about its tube axis and connected to the connector mounting portion 42 while being freely tilted at any angle, and is connected to the support body 10 while being tilted at angles in all directions. The conduit connector 30 of this configuration can stably connect the conduit 61 to the connection portion 36 and pipe it, even if the vertical installation position of the cable rack 80 of the conduit 61 and the installation position of the conduit connector 31 are slightly misaligned in the horizontal direction, or even if the conduit 61 does not have flexibility.

[0082] Furthermore, in the above embodiment, if the hanging position of the electric conduit 61 from the cable rack 80 and the erected position of the pillar are significantly misaligned in the horizontal direction, the electric conduit 61 can be a straight pipe that first hangs vertically down from the cable rack 80, and then bent and piped horizontally, for example via a distribution box 85, and connected laterally to the electric conduit connector 30 of the pillar 1, and then connected to the inlet 28 of the pillar.

[0083] In addition, when the electrical device is a parking meter, the parking meter is attached to the upper end of a support pole such as a metal pipe erected on the installation surface 70, and an electrical conduit 61 is connected to the top, which is piped from above and sideways.

[0084] The present invention is similarly applicable to poles on which electrical equipment such as garden lighting or drive-through order reception intercoms are mounted. [Explanation of symbols]

[0085] 1, 2: support, 3: electrical equipment, 10: support body, 11: tubular portion, 12: internal space, 13: peripheral wall, 19: fixing portion, 26: through hole, 28: inlet, 30: conduit connector, 31: conduit connector, 32: connector fixing body, 33: outer tube portion, 36: connection portion, 39: base, 40: abutment portion, 42: connector mounting portion, 45: conduit connector, 46: connector fixing body, 47: base, 48: abutment portion, 49: connector mounting portion, 50, 55: electrical equipment, 60: cable, 61: conduit, 70: installation surface, 80: cable rack.

Claims

1. A support pole that is erected on an installation surface and has an electrical device attached to its upper end, The support body includes a cylindrical portion extending in a vertical direction at least at an upper end side, and a hollow internal space is provided in at least a part of the axial direction of the cylindrical portion, a through hole that communicates the internal space with the outside is formed through a portion of a peripheral wall that circumferentially surrounds the internal space, and the electrical device can be attached to the through hole; The internal space has an inlet through which a cable can be introduced, the inlet being formed above half the erection length of the support, The support is characterized in that the inlet is provided with a connection portion to which an electric conduit that forms a wiring path for the cable can be connected.

2. The support according to claim 1 , wherein the inlet is formed at a position offset in the circumferential direction with respect to the through hole and at a position where its height in the erecting direction overlaps with that of the through hole.

3. The support according to claim 1 , wherein the inlet is formed at a position opposite the through hole.

4. The support according to claim 1 , wherein the inlet is formed at an upper end of the support body.

5. 5. The support pole according to claim 1, wherein the connecting portion is capable of connecting the end of the electric conduit to be connected in a state aligned along the erection direction of the support body.

6. The support pillar described in any one of claims 1 to 4, characterized in that the connection portion has an outer tube portion that receives the end portion of the electric conduit inside, and the axis of the outer tube portion is parallel to the erection direction of the support body or is inclined within a range of 45°.

7. 5. The support column according to claim 1, wherein the through holes are formed in a plurality of positions offset in the circumferential direction of the peripheral wall.

8. The support body has a hollow cylindrical shape with the internal space continuing in the vertical direction, and a cable connected to the electrical device can be introduced from the lower end side and wired inside the support body to the through hole, A support as described in any one of claims 1 to 3, characterized in that the inlet with the connection portion removed has the same shape as the through hole, is shifted in the circumferential direction relative to the through hole, and is formed at a position where its height in the vertical installation direction overlaps with that of the through hole, and is capable of attaching another electrical device different from the electrical device attached to the through hole.

9. An electrical equipment installation device comprising a support pole which is erected on an installation surface and to which an electrical equipment is attached at its upper end, and a conduit connector which is fixed to the support pole, The support pillar is The support body includes a cylindrical portion extending in a vertical direction at least at an upper end side, and a hollow internal space is provided in at least a part of the axial direction of the cylindrical portion, a through hole that communicates the internal space with the outside is formed through a portion of a peripheral wall that circumferentially surrounds the internal space, and the electrical device can be attached to the through hole; The internal space has an inlet through which a cable can be introduced, the inlet being formed above half the erection length of the support, The conduit connector is An electrical equipment installation device having a connection portion to which an electric conduit that forms the wiring path of the cable inside can be connected, and which is fixed to the inlet to form a continuous wiring path from the inside of the electric conduit to the internal space via the inlet.

10. A support is erected on the installation surface, and an electrical device is attached to an upper end side of the support; An electrical equipment installation structure characterized in that a lower end of an electrical conduit hanging down from above is connected to a location away from the installation surface of the support, and a cable wired within the electrical conduit passes through an internal space provided in the support and is connected to the electrical equipment.

11. A support is erected on the installation surface, and an electrical device is attached to an upper end side of the support; An electrical equipment installation structure, characterized in that the lower end of an electrical conduit hanging down from above is connected to the electrical equipment, and a cable wired inside the electrical conduit is connected to the electrical equipment.

12. An electrical device including an electrical device having a fixing part fixed to an installation surface and an operation part operated by a user, the operation part being fixed to the installation surface in a state where it is disposed above and away from the installation surface, An electrical equipment installation structure, characterized in that the lower end of an electrical conduit hanging down from above is connected to the electrical equipment device, and a cable wired inside the electrical conduit is connected to the electrical equipment.

13. 13. The electrical equipment installation structure according to claim 10, wherein the cables are laid in a wiring path formed by a cable rack suspended from a ceiling above the installation surface, and the cables are wired inside the conduit.

14. The electrical device installation structure according to claim 13, wherein at least a portion of the electrical conduit is flexible.

15. 13. The electrical equipment installation structure according to claim 10, wherein the electric conduit is arranged upward along the erection direction of the support pole.

16. A support is erected on an installation surface, and an electrical device is attached to a side of an upper end of the support, A flexible conduit is connected to the other side of the pole, the flexible conduit forming a wiring path for wiring a cable from a structure located on an outer surface or inside of the structure to the pole, the cable being wired on the other side of the pole from the other side of the structure to the pole; An electrical equipment installation structure, characterized in that the cable wired inside the conduit passes through an internal space provided in the support and is connected to the electrical equipment.

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