The present disclosure relates to a kit for mounting one or more appliances on a pole, a carrier base to be used in such a kit and to a utility pole.
Utility poles are commonly used to carry electrical power lines, including distribution lines and sub transmission lines. In urban areas, a variety of utility poles may be used for supporting telephone lines, fibre optic cables, and even traffic lights, street illumination and video cameras. It may happen that whenever a utility is installed in a neighbourhood, new poles are placed next to already existing ones. Chaotic situations may arise wherein different kinds of cables cross over and under each other and a variety of poles exist next to each other.
This kind of situation may have a number of disadvantages: firstly, maintenance work on any of the utilities involved may be complicated, and it may be difficult to install any new utility or other appliance on existing poles or new poles. Secondly, when electrical power lines are placed in the vicinity of other utility cables, electromagnetic interference may occur. Thirdly, the chaos of cables may lead to an unpleasant street view.
In order to solve the above-mentioned problems, it is known to use underground power and telephone lines instead of overhead lines. However, depending on the circumstances, an enormous investment may be necessary to replace a significant part of the overhead systems with underground systems. Such an investment may not be viable in all situations.
WO 2012025153 A1 discloses a kit for mounting one or more appliances on a pole, the kit including a central ring for being mounted around a pole and having a through-hole, a fitting surface and a support surface, and a carrier having a base part and at least one support arm extending from said base part for supporting one or more appliances, wherein said base part is adapted to be fitted on said support surface and has a through-hole adapted for being fitted around said fitting surface. This kit permits mounting several appliances on a same pole with a versatility which solves the above-mentioned problems.
The present subject matter aims at further improving the prior systems.
In a first aspect, the subject matter hereof provides a kit for mounting one or more appliances on a pole, the kit including a central ring, a carrier base and at least one carrier arm for supporting one or more appliances. The central ring has a through-hole for mounting the central ring around a pole, and a conical fitting surface. The carrier base has a conical through-hole for fitting the carrier base on the fitting surface of the central ring and one or more side arms. Each carrier arm is mountable by an end on one of the side arms of the carrier base.
In this aspect, a through-hole of a central ring may be adapted to a particular size and shape of a pole and a particular position on the pole, whereas the carrier base may be standardized to be fitted on a central ring. Moreover, the carrier base and the at least one carrier arm are separate pieces which can be assembled. Replacement of a carrier arm can be done without having to replace the carrier base, or dismounting any other part from a pole. This kit for mounting appliances on a pole is thus very versatile.
The fitting surface of the central ring and the through-hole of the carrier base may be conical which permits achieving good supporting and fitting effects between the fitting support surface of the central ring and the through-hole of the carrier base. This simple geometry may reduce the costs of manufacturing of both the central ring and the carrier base.
In some implementations, the fitting surface may include one or more protrusions and the through-hole of the carrier base may include indentations mating at least part of said protrusions. This way, the carrier base can only be fitted on top of the central ring in one or more predefined relative horizontal orientations. Hereby, assembly of a kit may be facilitated. Optionally, the indentations of the through-hole of the carrier base may be substantially identical and equispaced along an inner circumference of the through-hole.
In some implementations, the central ring may include a plurality of salient pieces at the bottom of the fitting surface for protecting cables and wires related to appliances mounted on the carrier arms.
In some implementations, the vertical orientation of at least one of the carrier arms may be adjustable. To this end, the carrier arm may include curved oblong holes for fastening the carrier arms to the side arms of the carrier base. Different inclinations of the carrier arm may be achieved by fitting the fastener at different positions along the length of the lateral elongated hole. Therefore, some implementations hereof may permit adjustable horizontal orientation (through indentations of a carrier base mating protrusions of a central ring, as explained before) and adjustable vertical orientation (through e.g. said curved oblong holes) of appliances. An aspect of this combination of adjustable horizontal and vertical orientations may make mounting of appliances more flexible and versatile, which may be very important in situations where obstacles have to be overcome to achieve specific arrangement of appliances.
In a further aspect, the developments hereof may provide a kit as substantially hereinbefore described, including at least two central rings. The first central ring has a first through-hole and a second central ring has a second through-hole of a different size than said first through-hole. The first central ring and second central ring have corresponding fitting support surfaces, such that a carrier base can be mounted on either the first central ring or on the second central ring. In this aspect, a kit is provided wherein several central rings with varying sizes of through-holes can be fitted at different heights on a utility pole (due to the taper of the pole). However, since the fitting support surface is the same in the at least two central rings, a carrier base may be fitted on any of the different heights.
In some implementations, the carrier arm may include holes for fitting electrical insulators and thus be adapted to carry electrical power lines. In some implementations, a carrier arm may include an illumination system (e.g. street lights) or may carry a traffic light.
In yet another aspect, the developments may provide a carrier base suitable for being used in a kit substantially as hereinbefore described. And in yet another aspect, the developments may provide a utility pole carrying one or more of the kits substantially as hereinbefore described.
Particular embodiments of the present invention will be described in the following by way of non-limiting examples, with reference to the appended drawings, in which:
a-1b illustrate an implementation of a central ring in accordance with the presently-described subject matter;
a-2b illustrate an implementation of a carrier base in accordance herewith;
a-3b illustrate a first implementation of a carrier arm in accordance herewith;
a-4b illustrate a second implementation of a carrier arm in accordance herewith;
a-5b illustrate instructions for assembling a kit comprising a central ring, a carrier base and a first and second carrier arm of the types shown in preceding figures;
a-6b partially illustrate the kit shown in
a-8b illustrate a kit similar to the one shown in
a-9d illustrate different arrangements of a same carrier base with one or more supporting plates mounted on said carrier base, according hereto; and
a-10b illustrate another implementation of a central ring in accordance herewith.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present inventions. It will be understood by one skilled in the art however, that the present inventions may be practiced without some or all of these specific details. In other instances, well known elements have not been described in detail in order not to unnecessarily obscure the description of the present inventions.
a-1b illustrate a first implementation of a central ring according to the presently-described subject matter.
With reference to
In this implementation, the central ring 10 has holes 17 in a top surface 11 of the central ring 10 for fixing a carrier base (or similar) on it, and two salient top pieces 15 with corresponding holes 19 for fixing the central ring 10 to a pole. This central ring 10 may also include bottom salient pieces 16 by way of flaps suitable for protecting cables or similar elements related to appliances. The functionalities of various characteristics of the central ring 10 according to this implementation will be further explained later on.
The central ring 10 may further have one or more troughs (not shown) on a top surface 11. These troughs may serve for positioning and guiding cables and wires leading to and from various utilities and/or other appliances to be mounted on a pole.
The through-hole of the central ring 10 may be tapered and may have a substantially circular cross-section. Within the scope hereof, any other cross-sectional shape may be used. An aspect of a tapered cross-section is that it may form an interlocking fit on a tapered pole. No additional fasteners would be necessary to ensure a stable connection. However, in some implementations hereof, additional fasteners such as screws or bolts may be provided to fix the central ring 10 in position with respect to the pole. To this end, fastener holes 19 may be provided, as commented before. These fastener holes may be provided in implementations with through-holes with a tapered cross-section or with a straight cross-section.
Also, in some implementations hereof, the through-hole of the central ring 10 may have an indentation 19x to adapt for a weld bead which may be present at the external surface of a pole.
The central ring may include troughs, which may serve to guide cables or wiring to an interior of a pole. To this end, the pole should be provided with holes in appropriate locations, either during manufacture of the pole or e.g. by drilling after installation of a kit on the pole. The cables or wiring may e.g. be connected to an electrical appliance mounted on a pole, such as e.g. a security camera.
a-10b illustrate a second implementation of a central ring according hereto.
This central ring 100 is similar to the one shown in
a-2b illustrate an implementation of a carrier base in accordance herewith.
a-2b show a carrier base 20 having a through-hole with an internal sidewall 21 with a tapered shape, for fitting the carrier base 20 to the fitting surface 12 of a central ring 10 as the one shown in
The carrier base 20 also has a plurality of holes 23 on a top surface 25 for fitting a fastener to fix the carrier base 20 on a central ring 10 as the ones described hereinbefore.
In some implementations, the carrier base 20 may have more than two (three, four or more) side arms 24, such that the carrier base 20 may carry more than two (three, four or more) carrier arms.
a-3b illustrate a first implementation of a carrier arm in accordance herewith.
This carrier arm 30 has a tubular part 37 with a longitudinal through-hole 31. The through-hole 31 may receive a fitting region of an appliance such that the appliance may be reliably supported by the carrier arm 30. The tubular part 37 may further have corresponding holes 32 for fitting fasteners (e.g. screws or bolts) to fix the received part of the appliance to the carrier arm 30. This carrier arm 30 may also include a structure with two lateral regions 36 with corresponding holes 34, 35 for fitting fasteners to fix the carrier arm 30 to the side arms of a carrier base 20 as the one shown in
Therefore, in some implementations, appliances may be mounted on a pole with adjustable horizontal and vertical orientations. The adjustable horizontal orientation may be achieved in the way commented with respect to
a-4b illustrate a second implementation of a carrier arm in accordance herewith.
In this implementation, the carrier arm 40 has a first end with suitable shape to be fitted in/on a side arm 24 as the ones shown in
a-5b illustrate exploded views of an assembly of a kit including a central ring 10, a carrier base 20 and two different carrier arms 30, 40 of the types shown in preceding figures.
a-6b partially illustrate the kit shown in
b shows how the central ring 10 fits into the carrier base 20 and how some bolts 64 (and corresponding nuts) fix the carrier base 20 to the central ring 10. An aspect is how the tapered internal sidewall 21 of the through-hole of the carrier base 20 (see
b further shows the through-hole with internal sidewall 18 of the central ring 10 for mounting the central ring 10 around a pole, and top salient pieces 15 with corresponding holes 19 for fixing the central ring 10 to the pole.
a-8b illustrate a kit similar to the one shown in
Still with reference to
The central ring 10 of
a-9d illustrate different arrangements of a same carrier base with one or more different supporting plates mounted on said carrier base, according to alternatives hereof.
d shows another arrangement of the same type, but, in this case, just having one semicircle-shaped supporting plate 95, i.e. with a shape different from the shape of the supporting plates 90, 91, 93, 94 of
One or more lateral holes may be provided in top salient parts of a central ring to house e.g. bolts to fix the central ring with respect to the pole 72. The bolts may penetrate to the interior of the pole 72, or may simply exert a sufficient pressure on the external surface of the pole. Furthermore, substantially vertical holes may be provided in a top surface of the central ring in order to fix the carrier base with respect to the central ring using suitable bolts.
The pole 72 may have a tapering circular cross-section. The heights at which the central rings 10 and 10′ are mounted may be determined by the size of the through-holes of the central rings. The central rings may be slid down the pole until the internal surface of the through-hole interlocks with the pole's external surface. In this case, the pole and through-holes of the central rings are of circular cross-section. The central ring with the through-hole of greatest diameter may be mounted first by sliding down the pole, followed by the central ring with a through-hole of second greatest diameter etc.
Although the central rings 10 and 10′ have different through-holes, their fitting support surfaces may be the same to a large extent. In this aspect, carrier base 20 may be mounted on central ring 10, but it could also be mounted on central ring 10′. Also the other carrier base could be mounted on any of the central rings. A modular concept for a utility pole is thus provided which may be quickly and easily installed, and can also easily be adapted to different needs. A further aspect of the modular concept is that the different parts may be easily manufactured at low cost. In alternatives hereof, the carrier bases do not need any fasteners to fix them with respect to the central rings (due to the interlocking fit between them), and the central rings may not need any fasteners to be fixed with respect to the pole (because of the interlocking fit of the internal surface of the tapered through-hole with the conical pole). These implementations may thus be particularly easy to assemble.
The carrier bases 20, 20′ (and associated carrier arms 30, 40, 40′) may have substantially the same or different orientations with respect to the central rings. As previously explained, the relative orientations of the carriers may be varied in accordance with circumstances.
In certain implementations, electromagnetic interference between different utilities may be a problem. This problem may be reduced by increasing the distance between the utilities and/or changing their relative orientations. One or both of these adjustments may be done relatively easily in various implementations hereof.
It may be seen in
The pole 72 may have tapering cross-section which may be circular, triangular, square (or rectangular) and hexagonal. It will be clear however, that further alternative cross-sections are also possible, e.g. pentagonal, heptagonal etc.
An alternative and/or additional aspect hereof is that only the through-hole of the central ring needs to be adapted to the pole upon which it is to be mounted. This through-hole may thus also be of circular, triangular, etc. cross section. The carrier bases are merely adapted to be fitted to the fitting support surface(s) of the central ring(s). The height of the utility pole may be varied freely, but for most of the implementations mentioned, heights between 6 meters and 12 meters may be most advantageous.
Although poles of tapering cross-section have advantages (e.g. an interlocking connection may be achieved with a tapered through-hole of a central ring), the developments hereof may also be used with poles of cylindrical (i.e. non-tapering) cross-section. In these arrangements, usually at least one additional fastener would be needed to fix a central ring with respect to a pole. When a plurality of kits is to be mounted on a cylindrical pole, the central rings and their through-holes may all be of the same size. In accordance with circumstances, carrier bases may then be selected to fit on any of the central rings.
Furthermore, only a limited number of all possible appliances that may be mounted on a pole have been illustrated. Non-illustrated alternative appliances include (but are not limited to): transformers, optical fibre, telephone, ADSL, Internet connection, photovoltaic systems, Wi-Fi, low voltage and medium voltage electrical power lines, webcams, security cameras, speed cameras, traffic cameras, street lighting and non-public lamps.
Although only a number of particular embodiments and examples of the inventions hereof have been disclosed herein, it will be understood by those skilled in the art that other alternative embodiments and/or uses of the inventions and obvious modifications and equivalents thereof are possible. Furthermore, the present inventions cover all possible combinations of the particular embodiments described. Thus, the scope of the present inventions should not be limited by particular embodiments, but should be determined only by a fair reading of the claims that follow.
Filing Document | Filing Date | Country | Kind |
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PCT/EP2013/051056 | 1/21/2013 | WO | 00 |