JP7538386B2 - Pole Structure - Google Patents

Description

The present invention relates to a pole structure.

Patent document 1 discloses an electric wire entry post that includes a cylindrical pole body, an outlet unit with a flat mounting surface, and a mounting bracket for mounting the outlet unit to the pole body. The mounting bracket includes a first mounting portion for mounting the outlet unit, and a second mounting portion whose mounting surface to the pole body is curved to follow the outer periphery of the pole body.

JP 2013-219979 A

With this configuration, the mounting bracket must be attached to the curved outer surface of the pole body, which makes the installation difficult. In addition, the entire mounting bracket is exposed from the pole body, so the space required to install the electric wire lead-in post is increased by the thickness of the mounting bracket.

The present invention was made in consideration of the above problems, and aims to provide a pole structure that allows an outlet box for mounting an outlet unit to be easily attached to the pole body, while minimizing exposure of the outlet box from the pole body.

The pole structure of the present invention is
A cylindrical pole body,
An outlet box to which an outlet unit can be attached;
A mounting tool that is housed in the pole body,
The pole body has an opening on a side surface,
The mounting fixture has a mounting portion to which the outlet box is attached,
The outlet box is inserted into the opening and attached to the attachment portion ,
The mounting portion has a plate-shaped mounting plate portion,
The mounting plate portion is
A partition wall portion that divides the space inside the pole body along the axial direction;
a box mounting portion extending from the partition wall portion and to which the outlet box is attached,
The box mounting portion is formed to protrude from the partition wall toward the opening .

In the above pole structure,
The pole body may have a guide portion on an inner surface thereof for moving the mounting plate portion along the axial direction and guiding it to a predetermined position.

In the above pole structure,
A holder is provided which is attached to one end side of the pole body,
The holder may hold one end side of the mounting plate portion.

In the above pole structure,
The mounting plate portion is
The guided portion may be guided by the guiding portion.

In the above pole structure,
The mounting plate portion may be formed by bending a single plate member.

The pole structure of the present invention allows the outlet box for mounting the outlet unit to be easily attached to the pole body, while minimizing exposure of the outlet box from the pole body.

FIG. 2 is a front view of the lighting fixture of the embodiment. FIG. 2 is an enlarged cross-sectional view taken along the line AA in FIG. FIG. 2 is an exploded top perspective view of a portion of the lighting fixture of FIG. 1; FIG. 4 is a bottom perspective view of FIG. 3 . FIG. 4 is a front view showing a state in which the parts in FIG. 3 are assembled. FIG.

In this embodiment, a lighting fixture 10 having the pole structure of the present invention will be described as an example. The lighting fixture 10 is a pole-type lighting fixture installed outdoors on the ground G, and is a so-called pole light. In the following description, as shown in FIG. 1, each direction is defined based on the lighting fixture 10 in use, and the direction of each component is also based on the state in which it is assembled to the lighting fixture 10 in use. Specifically, the left and right sides in FIG. 1 are defined as the left and right sides of the lighting fixture 10, the upper and lower sides in FIG. 1 are defined as the upper and lower sides of the lighting fixture 10, the front side of the paper in FIG. 1 is defined as the front side (front side) of the lighting fixture 10, and the rear side of the paper in FIG. 1 is defined as the rear side (rear side) of the lighting fixture 10. The up and down directions are examples of axial directions.

Figure 1 is a front view of the lighting fixture 10, Figure 2 is an enlarged view of the A-A cross section of Figure 1, and Figure 3 is an upper exploded perspective view of a portion of the lighting fixture of Figure 1. Figure 4 is a lower perspective view of Figure 3, Figure 5 is a front view showing the assembled state of the parts of Figure 3, and Figure 6 is a lower perspective view of the mounting plate portion.

As shown in Figures 1 to 5, the lighting fixture 10 includes a pole body 20, an extension pole 30, a lighting unit 40, a holder 50, a mounting fixture 60, an outlet box 70, and an outlet unit 80. The pole structure is composed of at least the pole body 20, the outlet box 70, and the mounting fixture 60.

As shown in FIG. 2, the pole body 20 is a member that supports the lighting unit 40, the holder 50, the mounting fixture 60, the outlet box 70, and the outlet unit 80. The pole body 20 has a tube portion 21, an opening 22, and a guide portion 23.

The tube portion 21 is a cylindrical member having a diameter and length capable of accommodating a part of the lighting unit 40, the holder 50, the mounting fixture 60, and a part of the outlet box 70. The tube portion 21 is designed in consideration of the durability capable of supporting the lighting unit 40, the holder 50, the mounting fixture 60, the outlet box 70, and the outlet unit 80, and the weather resistance capable of being installed outdoors. The material constituting the tube portion 21 can be, for example, a metal material such as aluminum, an aluminum alloy, iron, an iron alloy, a resin material, or a combination thereof.

As shown in Figures 3 and 4, the opening 22 is a rectangular cutout formed on the front side of the tube portion 21 when viewed from the front. The opening 22 is formed to a size that allows the outlet box 70 to fit in.

The guide portion 23 is provided on the inner surface of the tube portion 21, and is a member that moves the mounting plate portion 61 of the mounting fixture 60 (described later) in the vertical direction, which is the axial direction, to a predetermined position. The predetermined position is the position where the mounting plate portion 61 faces the opening 22. The guide portion 23 is provided on the left and right sides of the inner surface of the tube portion 21 so as to face each other, and is composed of a pair of grooves that extend in the vertical direction from the upper end to the lower end of the tube portion 21. The grooves are formed to a width that allows the mounting plate portion 61 to fit into them. Note that the guide portion 23 only needs to be able to move the mounting plate portion 61 in the axial direction and guide it to a predetermined position. For example, if a groove is provided in the mounting plate portion 61, it can be a protrusion that can engage with the groove to guide it.

As shown in Figures 1 and 2, the extension pole 30 is a member that is provided below the pole body 20. The vertical length of the extension pole 30 can be designed appropriately according to the usage environment, taking into account the portion that is buried in the ground. The extension pole 30 has a tube portion 31 and a ring 32.

The tube portion 31 is a cylindrical member made of the same material and with the same diameter as the pole body 20. Two holes 33 are formed at positions facing each other on the front and back sides near the lower end of the tube portion 31. The holes 33 are holes through which the wiring 81 (see Figure 2) of the lighting unit 40 and the outlet unit 80 is inserted. The holes 33 are provided so as to be located below the ground level G when the lighting fixture 10 is installed. This allows the wiring coming out of the holes 33 to be buried in the ground, and the wiring around the lighting fixture 10 to be hidden.

The ring 32 is a member for connecting the pole body 20 and the extension pole 30. The ring 32 is an annular member provided at the upper end of the tube portion 31, and is engaged with the holder 50 by screwing.

The pole body 20 and the extension pole 30 may have any shape as long as they are cylindrical, for example, they may be rectangular. They may also have a tapered shape in the upward or downward direction.

The lighting unit 40 includes a light source section 41, a holder 42, a globe 43, and a cover 44. The light source section 41 is housed in the pole body 20 and is a member that emits light upward. The light source section 41 includes a light source holding section 411, a socket 412, and an LED (Light Emitting Diode) bulb 413 as a light source. The light source holding section 411 is a member that holds the socket 412, and is suspended by being screwed to the lower end of the holder 42.

A wiring 414 (shown by a two-dot chain line in FIG. 2) that connects to an external power source is connected to the socket 412. The LED bulb 413 is screwed into the socket 412 and fixed facing upward so that its upper end protrudes from the holder 42. This allows current to be supplied from the external power source to the LED bulb 413, causing the LED bulb 413 to emit light upward.

In this embodiment, an LED bulb 413 is used as the light source, but there is no particular limitation on the type of light source, and other light sources may be used. For example, a light-emitting module equipped with a surface-mounted or chip-on-board type LED element, an organic EL element, or the like may be used.

The holder 42 is a member that holds the light source unit 41 and the globe 43. The holder 42 is an annular member that is provided at the upper end of the tube unit 21 and is fitted into the upper end of the tube unit 21. The globe 43 is a cylindrical member with a bottom that is screwed onto the upper part of the holder 42 and emits light to the surroundings. The globe 43 is made of a light-transmitting material, for example, a transparent or milky white resin.

The cover 44 is a member that covers the periphery of the globe 43 and emits the light emitted from the globe 43 forward. The cover 50 has an opening 441 on the front side. The light emitted from the globe 43 is emitted forward through the opening 441.

The holder 50 is a member that is attached to one end of the pole body 20 and holds one end of the mounting plate 61. The holder 50 is also a member for attaching the ring 32. In this embodiment, the holder 50 is a ring-shaped member that is screwed to the lower end of the tube 21 and holds the lower end of the mounting plate 61.

The upper surface of the outer edge 51 of the holder 50 abuts against the lower end of the tube 21, positioning the holder 50 relative to the pole body 20. This positions the mounting plate 61 held by the holder 50 at a predetermined position facing the opening 22.

The mounting fixture 60 is a member that supports the outlet box 70. The mounting fixture 60 is housed in the pole body 20. This makes it easier to assemble the mounting fixture 60 to the pole body 20 compared to the conventional method of attaching mounting brackets to the curved outer surface of the pole body.

The mounting fixture 60 has a mounting portion to which the outlet box 70 is attached. There are no particular limitations on the shape of the mounting portion, and it can be, for example, plate-like, rod-like, or cylindrical. In this embodiment, the mounting portion is a mounting plate portion 61 made of a single sheet of metal. The plate-like mounting plate portion 61 is formed by bending a single plate member. This makes it easy to manufacture the mounting plate portion 61. In addition, for pole bodies with different diameters, it is only necessary to change the design of the mounting plate portion 61, and the outlet box 70 can be made common.

The mounting plate portion 61 may be made of a metal material such as aluminum, aluminum alloy, iron, iron alloy, etc. The mounting plate portion 61 may also be made of resin, etc. It may also be formed by bending a single plate member, or by combining multiple plate members.

As shown in FIG. 6, the mounting plate portion 61 has a partition portion 62, a guided portion 63, a box mounting portion 64, and a holder mounting portion 65. The partition portion 62 is a rectangular portion that divides the space inside the pole body 20 along the vertical direction, which is the axial direction. The partition portion 62 divides the inside of the tube portion 21 into a front space and a rear space, as shown in FIG. 2. Therefore, by passing the wiring 414 of the lighting unit 40 through the rear space and the wiring 81 of the outlet unit 80 through the front space, the wiring 414 of the lighting unit 40 does not get in the way when attaching the outlet box 70 and the outlet unit 80.

The guided portion 63 is a portion that is guided by the guiding portion 23 of the pole body 20. The guided portion 63 is a rectangular portion that extends in the left-right direction from the partition portion 62. As shown in Figures 3 and 4, by moving the mounting fixture 60 from below to above with respect to the pole body 20, the left and right ends of the guided portion 63 fit into the grooves of the guiding portion 23, and the guided portion 63 is guided along the guiding portion 23.

The box mounting portion 64 extends from the partition portion 62 and is a portion to which the outlet box 70 is attached. In this embodiment, four box mounting portions 64 are provided, each protruding forward from the partition portion 62 toward the opening 22. Specifically, the four box mounting portions 64 are provided on the left and right ends of the partition portion 62, above and below the guided portion 63. Each box mounting portion 64 is formed by bending forward at approximately right angles from the left and right ends of the partition portion 62 and then bending further outward at approximately right angles to the left and right. Screw holes 641 are formed in the box mounting portions 64 for screwing the outlet box 70.

By forming the box mounting portion 64 to protrude forward from the partition portion 62, as shown in FIG. 2, a space can be secured between the partition portion 62 and the outlet box 70 to pass the wiring 81 of the outlet unit 80. In addition, since the position of the box mounting portion 64 within the pole body 20 can be positioned closer to the opening 22, the installation work of the outlet box 70 can be made easier and the outlet box 70 can be made smaller. In addition, since the gap between the back surface 64A of the box mounting portion 64 (see FIG. 4) and the tube portion 21 is larger, the screws for attaching the outlet box 70 that protrude from the back surface of the box mounting portion 64 are less likely to interfere with the tube portion 21.

As shown in FIG. 6, the holder attachment portion 65 is a portion that extends from the partition portion 62 and is attached to the holder 50. In this embodiment, the holder attachment portion 65 is a generally U-shaped portion that is bent rearward at a generally right angle from the lower end of the partition portion 62. The holder attachment portion 65 has two screw holes 651 for screwing to the holder 50 and two screw holes 652 for screwing to the wiring support portion 66 described below.

2 to 4, the mounting fixture 60 has a wiring support portion 66 that supports the wiring 414 of the lighting unit 40. The wiring support portion 66 has a support plate portion 661 and two cable ties 662. The support plate portion 661 is a sheet metal member bent into a substantially L-shape, and is screwed into the screw holes 652 of the holder mounting portion 65. The support plate portion 661 is disposed so as to extend downward and be substantially flush with the partition portion 62. The cable ties 662 are attached to the back surface of the support plate portion 661, and bundle and support the wiring 414 of the lighting unit 40. The cable ties 662 function as a tension stopper when the wiring 414 is pulled downward.

2 to 5, the outlet box 70 is inserted into the opening 22 of the pole body 20 and attached to the box mounting portion 64 of the mounting plate portion 61. Between the outlet box 70 and the box mounting portion 64, a rectangular packing 67 and a metal fitting 68 are sandwiched in order from the front side. The packing 67 and the metal fitting 67 cover a part of the rear side of the outlet box 70 and are formed to a length smaller than the length dimension of the outlet box 70. When the outlet box 70 is attached to the mounting plate portion 61, a part of the lower side of the rear side of the outlet box 70 is opened. Since a part of the rear side of the outlet box 70 is opened, it is easy to pass the wiring 81 of the outlet unit 80 through the extension pole 30, and the installation work of the outlet unit 80 is easy. The packing 67 and the metal fitting 68 can be attached to the box mounting portion 64 of the mounting plate portion 61. The packing 67 and the metal fitting 68 form the mounting surface between the box mounting portion 64 and the outlet box 70 and suppress the wobbling of the outlet box 70. Additionally, the packing 67 and metal fittings 68 are components for improving the waterproofing of the inside of the outlet box 70. However, the packing 67 and metal fittings 68 are not essential components.

The outlet box 70 is a roughly rectangular box with openings on the front, back, and bottom. The front of the outlet box 70 has two screw holes 71 for screwing the outlet unit 80. The back of the outlet box 70 has four screw holes 72 for screwing to the box mounting portion 64.

As shown in FIG. 2, the outlet box 70 is inserted into the opening 22 and attached so that most of it is contained within the pole body 20. This reduces the exposure of the outlet box 70 from the pole body 20 and reduces the front-to-rear dimension of the lighting fixture 10, thereby reducing the space required to install the lighting fixture 10.

The outlet unit 80 is a box having an outlet (not shown) to which an electrical device plug is connected. The outlet unit 80 is screwed to the front of the outlet box 70. A wire 81 (shown by a two-dot chain line in FIG. 2) that connects to an external power source is connected to the outlet. The wire 81 passes through the outlet box 70, the tube portion 21, the holder 50, the ring 32, and the tube portion 31 before being taken out from the hole 33.

The assembly procedure up to attaching the outlet unit 80 will be described with reference to Figures 3 to 5. First, the mounting fixture 60 is moved upward from below the pole body 20 so that the left and right ends of the guided portion 63 fit into the grooves of the guide portion 23. Next, the guided portion 63 is moved upward along the guide portion 23, and the upper surface of the outer edge portion 51 of the holder 50 is abutted against the lower end of the tube portion 21 of the pole body 20, and the pole body 20 and the holder 50 are screwed together. This positions the mounting plate portion 61 in a position facing the opening 22.

Next, the outlet box 70 is inserted into the opening 22 from the front, and as shown in FIG. 5, the outlet box 70 is screwed from the front into the screw holes 641 of the box mounting portion 64 via the four screw holes 72 of the outlet box 70. At this time, since the screw holes 71 and 72 of the outlet box 70 are located in different positions when viewed from the front, the screw holes 71 do not get in the way when screwing into the screw holes 72. Next, the outlet unit 80 is screwed to the front surface of the outlet box 70.

In this way, the mounting fixture 60, the outlet box 70, and the outlet unit 80 can be easily assembled. In particular, the mounting fixture 60 can be easily assembled by inserting it into the pole body 20 along the guide portion of the pole body 20.

According to the pole structure of the present embodiment described above, the pole structure includes a cylindrical pole body 20, an outlet box 70 to which an outlet unit 80 can be attached, and a mounting fixture 60 housed in the pole body 20. The mounting fixture 60 has a mounting portion to which the outlet box 70 is attached. The outlet box 70 is inserted into an opening 21 provided on the side of the pole body 20 and attached to the mounting portion. This allows the outlet box 70 to be easily assembled to the pole body 20. In addition, since the outlet box 70 is inserted into the opening 21 of the pole body 20 and attached to the mounting portion, the portion exposed from the pole body 20 can be reduced. In addition, a portion of the outlet box 70 is embedded inside the pole body 20, and the fixed portion with the mounting portion inside the pole body 20 is not exposed. Therefore, the outlet box 70 is unlikely to fall off even if the pole body 20 is subjected to an impact from the outside.

According to the pole structure of this embodiment, the mounting portion has a plate-shaped mounting plate portion 61. The pole body 20 has a guide portion 23 on the inner surface that moves the mounting plate portion 61 along the axial direction and guides it to a predetermined position. This makes it easy to position the mounting portion at a predetermined position in the space inside the pole body 20.

The pole structure according to this embodiment includes a holder 50 that is attached to one end of the pole body 20, and the holder holds one end of the attachment part. This makes it easy to position the attachment part at a predetermined position in the space inside the pole body 20.

According to the pole structure of this embodiment, the mounting plate portion 61 has a partition portion 62 that divides the space inside the pole body 20 along the axial direction, a guided portion 63 that is guided by the guide portion 23, and a box mounting portion 64 that extends from the partition portion 62 and to which the outlet box 70 is attached. This makes it easy to divide the space inside the pole body 20. Therefore, even when a member such as a lighting unit 40 is attached to the pole body 20, it is easy to divide the space into the space through which the wiring 81 of the outlet unit 80 is inserted and the space through which the wiring 414 of the lighting unit 40 is inserted. Since the space through which the wiring 414 of the lighting unit 40 is inserted is divided, the wiring 414 is less likely to interfere, making it easy to install the outlet unit 80.

According to the pole structure of this embodiment, the box mounting portion 64 is formed to protrude from the partition portion 62 toward the opening 22. This allows the mounting position of the box mounting portion 64 and the outlet box 70 on the pole body 20 to be located on the opening 22 side, making it easier to install the outlet box 70. This also prevents the outlet box 70 from becoming too large.

According to the pole structure of this embodiment, the mounting plate 61 is formed by bending a single plate member. This makes it easy to manufacture the mounting plate 61, and the productivity is high. Furthermore, even if the pole body 21 is changed from a cylindrical shape to a square tube shape, or the diameter size is changed, the outlet box 70 can be standardized by changing only the mounting plate 61.

REFERENCE SIGNS LIST 10 Lighting fixture 20 Pole body 22 Opening 23 Guide portion 50 Holder 60 Mounting fixture 61 Mounting plate portion (mounting portion)
62 Partition wall portion 63 Guided portion 64 Box mounting portion 70 Outlet box 80 Outlet unit

Claims (5)

A cylindrical pole body,
An outlet box to which an outlet unit can be attached;
A mounting tool that is housed in the pole body,
The pole body has an opening on a side surface,
The mounting fixture has a mounting portion to which the outlet box is attached,
The outlet box is inserted into the opening and attached to the attachment portion ,
The mounting portion has a plate-shaped mounting plate portion,
The mounting plate portion is
A partition wall portion that divides the space inside the pole body along the axial direction;
a box mounting portion extending from the partition wall portion and to which the outlet box is attached,
The box mounting portion has a pole structure formed by protruding from the partition portion toward the opening . The pole structure according to claim 1, wherein the pole body has a guide portion on the inner surface that moves the mounting plate portion along the axial direction and guides it to a predetermined position. A holder is provided which is attached to one end side of the pole body,
The pole structure according to claim 1 or 2, wherein the holder holds one end side of the mounting portion. The mounting plate portion is
The pole structure according to claim 2 , further comprising a guided portion guided by the guiding portion. The pole structure according to claim 1 , wherein the mounting plate portion is formed by bending a single plate member .

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