MXPA98000884A - System to raise and lower communication equipment - Google Patents

Abstract

A system (10,400) for lowering and lifting a telecommunications equipment along a pole of mast (24, 424). The system (10,400) comprises a pole of mast (24, 424), a platform element (32, 432), a frame element (28, 428), a plurality of lifting cables (36, 436), an element of crane (for example 52, 452), and a transition element (40, 440). The platform element (32, 432) surrounds the external surface of the pole pole (24, 424), and can be moved along its length. The platform element (32, 432) is configured for mounting telecommunications equipment thereon. The frame element (28, 428) is joined at the open upper end of the arrow of the pole of the mast (24, 424), and comprises pulley elements (for example 194, 224, 240), elements for guiding at least a lifting cable (for example 200), and elements for guiding at least one telecommunications cable, i.e., a signal cable or an energy cable. Each lifting cable (36, 436) has a first end connected to the platform element (32, 432), and extends through the guide element, and through the passage of the pole pole (24, 424). The crane element (eg, 52, 452) is secured to the lower end of the mast pole (24, 424), and is provided to selectively raise and lower the platform element (32, 432). The pulley element (for example 194, 224, 240) includes a winch cable (44, 444) having a free end. The transition element (40, 440) is located inside the passage of the pole of mast (24, 424), and is provided to couple the second end of the lifting cables (36, 436) with the free end the winch cable (44, 444). The transition element (40, 440) also provides an element for retaining at least one telecommunications cable therein (eg, 120, 128, 52

Description

SYSTEM TO RAISE AND LOWER COMMUNICATION EQUIPMENT This invention relates, in general terms, to a system for raising and lowering antennas and related equipment used in cellular telecommunications systems and in personal communications systems (PCS). In particular, the invention relates to a mast pole shaft that is provided with a ring or platform assembly that is raised and lowered using lifting cables that are connected to a crane element placed in the lower portion of the pole shaft. of mast through a transition assembly provided in association with it. The system of the present invention provides means for guiding lifting cables and telecommunications cables, for example, coaxial signal cables and power cables, during the raising and lowering of antennas and related equipment. Mast pole systems of the prior art used in connection with the operation of wireless cellular telecommunications systems require that the antennas used as part of this telecommunications equipment be permanently fixed to an elevated position near the top of a tower. mast, tubular pole or similar reticular structure. Typically, multiple antennas are fixed near the top of the mast tower, each antenna having an associated coaxial signal cable that connects it with auxiliary equipment placed on the ground, in order to enable the service personnel to provide maintenance to these antennas mounted on poles, steps, stairs or other elements to facilitate climbing are commonly permanently attached in an elevated position where the antenna is placed. Additionally, safety regulations require that current technology mast poles be provided with safety climbing equipment and a service platform mounted to the elevated position where the antennas and other related telecommunications equipment is positioned to allow safe performance of the equipment. Service work by service personnel. Many in the industry and the public have considered that the presence of these facilitating elements to climb permanently assembled and safety platforms in a communications pole is depreciated * the aesthetic appearance of the site in which the communications pole is located. In fact, the presence of that on a communications pole has been sufficient reason for the rejection of a proposal during a zone review. Additionally, the installation of steps, safety climbing equipment and safety platforms increases the manufacturing cost. Therefore, there has been a need very much felt by the public and by those in the industry, for a communications hub that eliminates the need for steps, safety platforms and climbing devices and provides a more current and visually attractive appearance that would be more acceptable to the public and to the area review boards. Additionally, the presence of permanently mounted climbing facilitation elements presents a potentially serious liability problem in the event that a rapist may suffer an accident as a result of climbing that equipment and falling from it. Because within the systems of the prior art, the service can only be provided in an elevated position, where the antennas are permanently fixed, security is a matter of great importance. Only service personnel who have a training as high equipment repairers can be used to provide service to the pole-mounted equipment. Because relatively few service people possess the expertise of a senior equipment repairman, those individuals are able to request higher fees for their services and usually have higher demand and are often unavailable. In addition, while a senior equipment repairman is performing the service in an elevated position, within the safety requirements, a second service person must be stopped at the base of the pole while the repairman is working in an elevated position to provide assistance in the event of an emergency. Therefore, both from the point of view of cost and safety, there has been a very strong need in the industry for a system that trains personnel who do not have the expertise to repair high equipment to perform service work with security. Additionally, within the systems of the prior art, the antennas are customarily mounted in an elevated position on the mast pole while another portion of the related telecommunications equipment, eg, radio frequency equipment, power supply, batteries, rectifiers , they are placed at the level of the floor and they are placed around the base of the pole. By placing all telecommunications equipment other than the antenna at ground level instead of the mast pole, the service can be provided to this equipment without requiring service personnel to climb the pole pole. However, placing that equipment at ground level has many disadvantages. For example, considerably larger land is required to house this equipment. In addition, in order to protect against vandalism or weathering, it is not uncommon for equipment stored on the floor to be housed within a trailer or similar roof structure, which further increases the required lot size and cost. Additionally, it is not uncommon for fencing to be erected around ground of equipment parked at ground level to discourage vandalism and thereby increase the required lot size and cost. Consequently, in order to place telecommunication equipment at ground level, one must provide a relatively large plot of land on which a roof can be located and a fence erected in order to house and protect that equipment. Therefore, there is a felt need for a system that is implemented without the need to use the costly protective measures mentioned above. There are lifting / lowering devices in the prior art that are dedicated to the purpose of raising / lowering lighting systems. These lighting systems are also known as luminaries. These devices are manufactured by several different companies including American High Mast, Inc., the assignee of the present invention and application. These systems have been in existence and commercially available for some time and routinely appear in parking lots, shopping centers, highways, toll plazas, airports and other locations where outdoor lighting is required. Within these devices for raising / lowering minators by lights, a plurality of luminaires are attached to a platform assembly that surrounds the outside of the pole pole. The platform assembly is typically suspended by three lifting cables which are connected thereto and extend through the interior of the pole pole and are connected to an elevator element, for example an internal motor. Additionally, one or at most two cables connected to the luminaires extend through the mast pole and connect at their second end to power supplies placed at floor level. However, within these prior art systems, since only three hoisting ropes and one or two power cables actually extend through the interior of the mast pole shaft there was no reason to provide a means for routing these cables or to ensure proper orientation as they feed from the mast pole and connect to the luminaires and other related equipment mounted on the platform assembly. While the lifting / lowering devices of the prior art are suitable for their intended purpose, ie, raising and lowering luminaires, these are unsuitable for raising and lowering antennas and other related telecommunications equipment because those devices do not provide means for routing additional telecommunications cables, for example, coaxial signal cables, energy and lifting cables associated with that equipment. Within the prior art, a single large opening is provided in the upper part of the mast pole through which all the cables are fed.

This large opening is inadequate for routing and securing the proper orientation of a plurality of telecommunications cables, eg, multiple coaxial signal cables, a plurality of power cables, in addition to at least six survey cables. Therefore, there is a felt need for a system to route a significant number of cables, for example telecommunication cables, lifting cables. Within prior art lifting / lowering devices where a single large opening is used for routing cables, typically a special dome is provided over the large opening for the purpose of protection against the entry of rainwater, birds and drips of the birds inside the pole. Furthermore, within the prior art lifting / lowering systems, a mechanical clutch is coupled to the electric motor in order to control the torque output of the motor to the gears. Within these prior art systems, once a predetermined amount of torque is reached, such as when the platform assembly reaches the raised position and rests on the frame assembly, the mechanical clutch disengages the motor from the frames. gears in order to discontinue the lifting of the platform assembly. Unless a clutch is provided, the motor will continue to exert the torque on the lifting cables and the platform assembly. That torque can damage the motor and / or other components of the system and will eventually result in one or more lifting cables breaking out of the assembly of the platform they are supporting. Because the clutch is a device that is mechanical in nature, it may fail to calibrate, which will result in damage to the system or motor. When a lifting / lowering device is used to lift and lower expensive telecommunications equipment, a more accurate and reliable means must be provided to disengage the gear motor once the platform assembly reaches the raised position and once the platform assembly reaches the lowest position for service. There is also a need for a means to decrease the speed of the ascent and descent of the platform assembly as it approaches the high and lower positions. OBJECTS OF THE INVENTION It is a general object of this invention to provide an apparatus for raising and lowering communications equipment that overcomes the disadvantages of the prior art. Another object of the invention is to provide an apparatus for raising and lowering communications equipment that allows to service the equipment mounted on the pole at ground level. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that eliminates the need to use service personnel who have expertise as a repairman of overhead equipment. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that provides an increased level of security to service personnel. Another object of this invention is to provide a system for raising and lowering communications equipment that reduces insurance costs. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that reduces labor requirements. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that minimizes service costs. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that reduces the time of repairs. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that provides increased security by reducing the potential for theft or vandalism.

Another object of this invention is to provide an apparatus for raising and lowering communications equipment that does not detract from the aesthetic appearance of the site in which it is located. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that can be implemented on a relatively smaller piece of land. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that allows telecommunications equipment to be located near the antenna thereby increasing the performance characteristics of telecommunications equipment. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that is more acceptable for zoning review panels. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that has an aesthetically pleasing visual appearance. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that eliminates the need for safety platform steps or the use of climbing devices safely. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that includes a motor and provides a precise and reliable means for disengaging the motor once the platform assembly has reached the elevated position. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that includes a motor and provides a means to accurately control the speed of the internal motor in order to control the rate of rise and fall of the platform assembly as approximate the high and low positions, respectively. Another object of this invention is to provide an apparatus for raising and lowering communications equipment operating at multiple speeds. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that provides a means for guiding a plurality of survey cables and several telecommunications cables. , for example, signal cables and power cables. Another object of this invention is to provide an apparatus for raising and lowering communications equipment that does not require the use of a dome or other cover device. Summary of the Invention These and other objects of this invention are achieved by providing a system for lowering and lifting telecommunications equipment along the pole of the mast. In accordance with one aspect of this invention, the system for raising / lowering telecommunications equipment comprises a pole pole, a platform element, a frame element, a plurality of lifting cables, an elevator element and a transition element. . The platform element surrounds the outer surface of the mast pole and can be moved along the length thereof. The platform element is assembled for mounting the telecommunications equipment on it. In one embodiment the platform element comprises a circular ring surrounding the pole of the mast, the ring having a plurality of arms attached thereto and extending outwardly thereof. The arms are arranged to support at least one antenna or at least one luminaire on it. In another embodiment, the platform element comprises a triangle-shaped multilayer structure that is arranged to support antennas and additional pieces of telecommunication equipment. The frame member is attached to the open upper end of the shaft of the pole pole and comprises pulley elements, elements for guiding at least one lifting cable and elements for guiding at least one telecommunications cable. The telecommunications cable being guided one or more signal cables, one or more power cables, or a combination of signal and power cables.

Each lifting cable has a first end connected to the platform element and extends through the guide element and through the passage of the pole of the mast. The lifting element can be an internal motor linked to a winch drum on which a winch cable is wound. Additionally, the gears would be provided in combination with the engine to achieve an adequate rate of rise and fall of the platform assembly. The transition element is located within the passage of the mast pole and is provided for coupling the second end of the lifting cables with the free end of the winch cable. The transition element also provides an element to retain at least one telecommunications cable therein. The telecommunications cable being retained therein is one or more signal cables, for example, coaxial cables, one or more power cables, or a combination of signal and power cables. According to another aspect of this invention, a base assembly is provided in combination with an up / down system. In accordance with another aspect of this invention, a programmable frequency inverter is provided in combination with the raise / lower system which can detect the amount of current produced by the internal motor. As a safety device, the frequency inverter is arranged to stop the motor when a predetermined level of current has been exceeded. According to another aspect of this invention, an element is provided for controlling the speed of the ascent and descent of the platform assembly. Description of the Drawings Figure 1 is a side elevational view showing a preferred embodiment of the system of the present invention with the platform assembly in the raised position; Figure IA is an isometric view of the upper portion of the preferred embodiment of the system shown in Figure 1 with the platform assembly in a partially lowered position, - Figure 2 is an enlarged sectional view taken along the line 2-2 of Figure 1; Figure 3 is an enlarged sectional view taken along line 3-3 of Figure 1; Figure 4 is an enlarged sectional view taken along line 4-4 of Figure 1; Figure 5 is an enlarged sectional view illustrating the interior of the lower portion of the mast pole and the interior of the base assembly of the preferred embodiment of the present invention; Figure 6 is an enlarged sectional view taken along line 6-6 of Figure 3; Figure 7 is an enlarged sectional view taken along line 7-7 of Figure 3; Figure 8 is an enlarged sectional view taken along line 8-8 of Figure 3; Figure 9 is an enlarged sectional view taken along line 9-9 of Figure 3; Figure 10 is an enlarged sectional view taken along line 10-10 of Figure 3; Figure 11 is an enlarged sectional view of one of the plurality of openings from one end to the other located in the manifold portion of the base plate of the frame assembly shown in Figure 3. The exemplary opening from one end to the other it is shown fitted with a cylindrical liner. Figure 12 is a top view of an alternative embodiment of the present invention. Figure 13 is a partially sectioned elevated view of the lower portion of an alternative embodiment of the present invention. Figure 14 is an enlarged sectional view taken along line 14-14 of Figure 13. Figure 15 is a sectional elevated view of the upper portion of the alternative embodiment of the present invention. Figure 16 is a detail elevational view, partly in section of the element for controlling the speed of the assembly of the platform along the axis of the pole of the mast.

DETAILED DESCRIPTION OF THE PREFERRED MODALITIES Referring now to several figures of the drawings, in which the similar numerals refer to similar parts, it is shown with figure 10 in Figure 1, the system for raising and lowering communications equipment constructed in accordance with this invention. The details of the system 10 will be described later. Figure 1 shows the preferred embodiment of the system 10 of the present invention that includes a platform assembly 32, (Figure 2) arranged to support a plurality of antennas 12 (Figure 2) within a plurality of antenna cylinders 64 in a position raised on a conventional elongated hollow taper mast pole 24 while various components of radio frequency and power supply equipment (to be described later) are located at ground level housed within a cabinet 69 located adjacent to the base of the pole. According to the present invention, the system for lifting, lowering 10 is provided to allow servicing the equipment mounted on the platform assembly by lowering that assembly at ground level, thus obviating the need to climb to the top of the pole to have access to it. Providing an element to lower the antenna 12 and other related equipment to ground level to service it, eliminates the need to use service personnel who have repairman expertise on top. Additionally, the need to provide steps, safety platforms and devices to climb safely at the communication poles is eliminated. The system of the present invention provides an increased level of security for service personnel, reduces insurance and service costs, reduces the labor requirements of the service and serves as a more acceptable and visually appealing alternative to service. zoning the review panels. The various principal components of the preferred embodiment 10 of the system of the invention are shown herein in Figures IA and 5 and basically comprise the mast pole identified above (Figure IA), a frame assembly 28 (FIG. IA) comprising several roller compartments 184, 188, 192 mounted on a base 100 (FIG. IA), a platform assembly 32 (FIG. IA), a plurality of lifting cables 36 (Figures IA and 5), a transition assembly 40 (FIG. 5), an internal motor 52 (Figure 5), a base assembly 60 (Figure 5, a plurality of antenna cylinders identified above in the present 64 (Figure IA) for housing the antennas 12 and a plurality of luminaire cylinders 68. (Figure IA) to house luminaires, a cabinet 69 adjacent to the base assembly 60 for housing the power supplies 20 and radio frequency equipment 16 (Figure 5). Referring now to Figures 1, 2 and 4, the pole axis of the mast is a hollow member open at both ends, and is provided with a horizontally disposed base eyebrow 25 and a circular upper flange 26 welded to the 24 axis. upper flange has an outer edge 26a and an inner flange 26b. As shown in Figures 4 and 5, the base flange 25 is provided with openings 25a lengthwise to facilitate joining the shaft of the pole pole 24 with the base assembly 60. The shaft of the pole pole 24 is manufactured to from numerous hollow segments of metal that are embossed that fit one into another to form a superimposed telescopic unit. The segments are put together to reach the total desired height, typically around one hundred feet (30.48 m). The tapered segments that are embossed from the shaft of the pole pole 24 can be made of galvanized steel or stainless steel or any other suitable material. The pole pole of mast 24 maintains a uniform taper on its total length from the bottom to the top.

As shown in Figures 1 and 5, the base portion 25 of the mast pole shaft 24 is connected to the upper part of the base assembly 60 by conventional means, for example screws 89. Referring now to Figure 5 , the base assembly 60 comprises a pair of opposed base plates 61 placed horizontally, which .48 m) separated by a plurality of tubes 62 extending from each other. The base assembly 60 is fixed to a concrete plate 63 by some conventional means known to those having practice in the art, for example, attachment with bolts 63a extending upwardly from the concrete plate 63. The open area defined between the base plates 61 of the base assembly 60 is used to house various components of the preferred embodiment including an internal motor 52, the winch assembly 48, gear reducers 53 and 54, and a frequency inverter 294. These components are mounted on a base mounting plate 60a within the base assembly 60 by some suitable conventional means. Additionally, the base assembly 60 is provided with covers 65 to protect the components mounted therein from the outside environment. In accordance with the preferred embodiment of the present invention, it is often a matter of design to place various components of telecommunications equipment, for example, radio frequency equipment 16 and power supplies 20, at ground level instead of at an elevated position. about the mast pole due to the fact that that equipment is very expensive. According to this preferred embodiment, these components, that is, the radiofrequency equipment 16 and the power supplies 20, are housed within a cabinet 69 adjacent to the base assembly 60. A conduit 69a provides access between the cabinet and the cabinet. base assembly 60 to allow various cables to be routed from the power supply 20 and the radio frequency equipment housed within the cabinet 69 within the base assembly 60. The power is supplied to other equipment, eg, an obstruction light (not shown) ), the luminaires or any other equipment mounted on the platform that requires power by means of a power cable 80 extending from the power supply located in the housing 69 through a conduit 69a and upwardly through the portion bottom of pole pole of mast 24. When platform assembly 32 is in the raised position, cable 80 is detachably connected with a power cable 81 p or middle of a connector 80a. When it is desired to lower the platform assembly 32 to a position for servicing, the power cable 80 is separated from the connector 80a and connected to a connector located at the free end of the power cable 78. The other end of the cable 78 is connected to one side of the frequency inverter 294, 1 another side of the frequency inverter is connected via the cable 78a to a motor 52. Thus, the motor 52 is provided with power by connecting the power cable to the cable 78, a through the inverter 294 and through the cable 78a. The power cable 81 extends through the transition assembly 40 and up through the shaft of the pole pole 24 and is connected at its second end to the equipment, for example, an obstruction light, mounted on the platform assembly 32. Likewise, a plurality of coaxial signal cables 75 are connected at their first ends with the radiofrequency equipment 16 housed inside the cabinet 69 and extended in a bundle * through the conduit 69a and connected at their second ends. with the coaxial signal cables 76 by means of detachable connectors 76a. The signal cables 76 extend through the transition assembly 40 and up through the open interior of the shaft of the pole pole 24 and connect at their second ends with the antennas 12 mounted on the platform assembly 32. Referring at hour to Figures 4 and 5, it can be seen that the transition assembly 40 of the preferred embodiment is located in the lower portion of the mast pole axis and is generally triangular in shape. It can be manufactured from any suitable material, for example, palatinate or galvanized steel. As shown in Figure 4, the transition assembly 40 is provided with a plurality, for example, nine, threaded openings for coaxial cables 120, a plurality, for example six, openings for lifting cables 124, and a plurality, for example, three, threaded openings for power cables 128, and an opening for centrally located winch cable 132. It should be understood that the number of openings shown in the transition assembly of the preferred embodiment is only exemplary and one can specify a more or fewer openings or a different arrangement of openings according to the customer's requirements without departing from the spirit of this invention. Six lifting cables 36 are shown passing through each of the six lifting cable openings 124 of the transition assembly 40. The lifting cables 36 are secured to the transition assembly 40 by any suitable means of attachment, eg, joining equipment including thrust bearings, hex nuts and nylon stop nuts (not shown). The lifting cables 36 extend upwardly through the interior of the shaft of the pole pole 24 towards the frame assembly 28. The coaxial signal cables 76 are gripped within the coaxial cable openings 120 of the transition assembly 40 by any suitable means, for example, strain relief cable lugs 164, which are installed within the coaxial cable openings with thread 120. The strain relief cable lugs 164 may be of any suitable construction. A particularly effective design cable handle is sold under the registered trademark KELLEMS manufactured by Hubbel Incorporated of Bridgeport, Connecticut. An energy cable 81 passes through the energy cable opening 128 of the transition assembly 40 and extends upwardly through the interior of the shaft of the pole pole 24 towards the frame assembly 28. The power cable 81 is grasps within the opening 128 of the transition assembly 40 by any suitable means, for example, a tie-down cable tie 168 (equal to those previously discussed in connection with coaxial signal cables and suitably sized to the diameter outside of the power cable 81). Still referring to Figures 4 and 5, the winch cable opening 132 of the transition assembly is provided with equipment, for example, an eyebolt 148, to provide a point of attachment for a round-tip anchor shackle 152. winch cable 44 is wound onto the winch drum 176 of winch assembly 48 and one end secured to the drum. The free end of the winch cable 44 is provided with a thimble 156 that attaches to the free end of the winch cable by conventional means, for example, a compression cold-forged compression sleeve to allow attachment to the eyebolt 148. winch cable 44 can be made from any suitable material, for example, 7x19 stainless steel cable for 5/16"rope diameter aircraft of type 303/304. Winch rope 44 is of sufficient length to maintain at least four full wrappers on the winch drum 176 when the platform assembly 32 has been lowered to its lowest position The winch drum 176 is provided with conventional "maintainers" (not shown) to guide the non-entanglement portion of the winch cable uniformly inside the drum 176 during the entanglement The operation of the winch assembly 48 is effected by the motor 52. The motor 52 can be of any construction suitable that will produce the torque needed to lift and lower the load of the platform assembly 32, the antenna 12 and other equipment mounted on the platform assembly 32. The engine 52 includes a switch that allows it to operate in either the forward or reverse directions to raise or lower the platform assembly 32. A particularly effective engine which can generate sufficient torque to raise the previously described load is manufactured by Leeson Electric Corp. of Grafton, Wl.

In order to achieve an appropriate speed for the ascent and descent of the platform assembly 32 during its raising and lowering and to achieve an appropriate torque, the internal motor 52 is connected to the winch drum 176 by means of a gear reducer. on line 53 and a right angle gear reducer 54. The sreductors 53 and 54 serve to reduce the revolutions per minute of the motor 52 to the winch drum 176. The reducers 53 and 54 may be of any suitable construction. Particularly effective are in-line and right-angle reducers manufactured by Winsmith Corporation of Springville, NY. In the preferred embodiment, the engine 52 has an output speed of 1750 revolutions / minute. It should be understood that according to an aspect of this invention discussed later in this specification, the motor 52 can be controlled to operate at a lower or higher speed, thus making it possible to control the assembly ascent / descent speed. of platform 32 along pole e mast 24. Line reducer 53 provides a gear reduction ratio of 8: 1, while the right angle reducer 54 provides an additional gear reduction ratio of 36: 1. Thus, the winch drum 176 rotates at approximately six revolutions per minute. It should be understood that the gear reduction ratios set forth in this specification are exemplary and different types of gear reducers having different ratios of gear reduction can be used without departing from the spirit of this invention. As shown in Figure IA, the frame assembly 28 is mounted on the top of the pole pole assembly 24. The frame assembly 28 of the preferred embodiment comprises a base plate 100, a plurality of wire roller compartments. coaxial 184, a plurality of roller compartments for lifting cables 188, and a roller compartment for power cable 192. As can be seen in Figure 3, the base plate 100 of frame assembly 28 is generally in a circular shape and It can be made of a galvanized metal such as rolled steel or other suitable material. The base plate 100 is provided with a centrally located manifold portion comprising a plurality, for example, nine, threaded openings for coaxial cables 196, a plurality, for example six, openings for lifting cables 200, and a plurality, for example, three, threaded openings for power cables 204. It should be understood that the number of openings shown in the base plate 100 of the preferred embodiment is only exemplary and a greater or lesser number of openings or a different arrangement of openings may be specified. according to the client's requirements without departing from the spirit of this invention. Each of the openings in the base plate 100 is located to correspond to the plurality of coaxial cable openings 120, the openings for lift cables 124, and openings for power cables 128, respectively, located on the transition assembly 40. Each of the coaxial cable openings 196 in the base plate 100 provides a means for guiding the respective one of the plurality of signal cables 76 as they extend upwardly from the transition assembly 40 and into each of the compartments. of coaxial cable rolls 184. Likewise, each energy cable opening 204 located in the base plate 100 provides the guide for an energy cable 81 as it extends upwardly from the transition assembly 40 and within each of the compartments of the power cable rolls 192. Similarly, each lifting cable opening 200 located on the base plate 100 p A similar guide for a lifting cable 36 as it extends upwardly from the transition assembly 40 is provided within each of the lifting cable roll compartments 188. It should be understood that the number of openings provided in the mounting plate of the lifting cable roll. base 100 in connection with the preferred embodiment 10 is merely exemplary. A greater or lesser number of these openings must be specified for particular applications without departing from the spirit of this invention. As you can see in Figures 2 and 3, the base plate 100 is also provided with a plurality of end-to-end slotted openings 208. The openings allow the attachment of the base plate 100 with the upper flange 26 of the pole pole assembly 24 by any conventional means, by example screws and nuts. The end-to-end openings 208 are slotted to allow rotation of the base plate 100 in order to achieve the precise spatial orientation of the antennas 12. Referring now to Figure 11, a cross-sectional view of a end-to-end opening that is exemplary of the plurality of coaxial cable openings 196 and energy cable openings 204 located in the base plate 100 shown in Figure 3. The exemplary end-to-end opening shown in Figure 11 it is fitted with a cylindrical liner 212 having an outer steel cover 212a and having a soft, captive plastic interior 212b. An exemplary cable, for example, either coaxial or power, is shown passing through the center of the liner 212. The purpose of the liner 212 is to minimize friction and protect the outer jacket of the coaxial and power cables as they move. along it during the raising and lowering of the platform assembly 32.

More important are the liners because they provide guidance for each of the coaxial cables 76 and the power cables 81 as they pass through the base plate 100, during lifting and lowering. The liner 212 can be of any suitable construction. A particularly effective liner is manufactured by Thomas and Betts under the name of Insulated Chase Nipple. The inner diameter of the liner is large enough to allow free movement of the coaxial cable 76 or the power cable 81 that runs through it. Figures IA, 2 and 3 illustrate the orientation of each of the various roll compartments 184, 188, 192 on the base plate 100. Each of the signal cable roll compartments 184 has a first end oriented on a of the openings for signal cables 196 located in the manifold portion of the base plate 100 and a second end extending over the outer edge 100a of the base plate 100. Similarly, each of the roller compartments of lifting cable 188 has a first end oriented on one of the openings for lifting cable 200 located in the portion of. multiple of the base plate 100 and a second end extending over the outer edge 100a of the base plate 100. The roller compartment for power cable 192, similarly, has a first end oriented on one of the openings for lifting cable 204 located in the manifold portion of the base plate 100 and a second end extending over the outer edge 100a of the base plate 100. It should be understood that although only the roller compartment of the cable is shown. energy 192 in the preferred embodiment, additional energy cable roller compartments according to this invention can be provided. Additionally, a greater or lesser number of lift cable roller compartments 188 and signal cable roller compartments 184 may be provided, based on the number of antennas 12 that are used in the platform assembly 32 and the amount of equipment requiring power located on the platform assembly 32. Referring again to Figure 3, the orientation of the compartments for signal cable rollers 184, sections for lifting cable roller 188 and cable roller compartment is illustrated. of energy 192 on the base plate 100. As shown therein, the coaxial cable roller compartments 184 are disposed on the base plate 100 in three groups. Each group of three compartments 184 is oriented 120 degrees with respect to the other two groups of three coaxial cable roller compartments 184. It should be understood that the orientation of the various roller compartments on the base plate 100, as shown in FIG. preferred embodiment is exemplary. Other orientations may be used without departing from the spirit of this invention. The details of each of the coaxial cable roller compartments 184 are illustrated in Figures 8 and 9. Referring now to Figure 9, each coaxial cable roller compartment 184 comprises two opposite semicircular side plates 216 and an upper plate 220 that form a closed compartment. Two adjacent compartments can share a common side plate 216. The compartment side plates 216 can be made of galvanized sheet steel or similar material and can be secured to the base plate 100 by means of L-fasteners and screws (not shown) or by other means of restraint. Referring again to Figure 8, disposed within the closed compartment 184 there is a plurality, for example, seven freewheeling wire rollers 224. The wire rollers 224 are spaced sufficiently apart from each other and from the upper plate 220 to allow a signal cable 76 of a particular diameter to travel and be supported between the cable roller 224 and the upper plate 220 during the lifting and lowering of the platform assembly 32. Typically, the coaxial signal cables 76 used in accordance with the present invention have a diameter of 7/8 inch (2.2 cm) or greater. The coaxial cable is relatively inflexible or stiff. Accordingly, cable manufacturers specify a curve radius based on a particular diameter that must not be exceeded in order to avoid premature degradation of the cable. For example, manufacturers suggest that a coaxial cable that has a diameter of 7/8 of an inch (2.2 cm) must maintain a curve radius of not less than eight inches (20.32 cm). In order to maintain that curve radius and avoid degradation of the coaxial cable, according to the manufacturers, the cable rollers 224 are placed inside the roller compartment 184 in a manner that allows the cable 76 to travel over it and maintain that curve radius. Each cable roller 224 within the coaxial cable roller compartment 184 is made of polyvinyl chloride or a similar low friction material to facilitate movement of the coaxial cable 76 thereon and to minimize stress and friction as the cable 76 it moves along the roller 224 during the raising and lowering of the platform assembly 32. Referring to Figure 9. it can be seen that the outer periphery of each cable roller 224 is in the shape of a channel 224a to accept the outer diameter of a coaxial cable 76 having a particular thickness. The cable rollers 224 are mounted between the side plates 216 by means of stainless steel arrows 228.

The details of the power cord roll compartment 192 are illustrated in Figures IA and 7. Like the signal wire roll compartment 184, each power cord roll compartment 192 comprises two opposite semicircular side plates and a plate superior to form a closed compartment. The side plates of the power cable roller compartment can be made of galvanized sheet steel or a similar material and can be secured to the base plate 100 by means of L-fasteners and screws (not shown) or by other conventional fastening means . Referring again to Figure 7, disposed within the compartment 192 there is a plurality, eg, five, rollers for freewheeling cable 194. The rollers 194 are spaced sufficiently apart from one another and from the upper plate 193 to allow an energy cable 81 of a particular diameter, traverse and be supported between the cable roller 194 and the upper plate 193 during the lifting and lowering of the platform assembly 32. Additionally, the cable rollers 194 are placed inside the cable compartment 194. roller 192 in a manner that allows power cable 81 to travel over it and maintain the curve radius as previously discussed in connection with coaxial cables. Similarly, each cable roller 194 is made of polyvinyl chloride or a similar low friction material to facilitate movement of the energy cable 81 thereon and to minimize stress and friction as the cable 81 moves along of the roller 194 during the raising and lowering of the platform assembly 32. Additionally, the periphery of each of the cable rollers 194 has a grooved shape for accepting the power cable 81 having a particular thickness. The details of the lifting cable roller compartment 188 is illustrated in Figures 6 and 9. With reference to Figure 9, it can be seen that each lifting cable roller compartment 188 is made of structural rectangular tubing 236 having two open ends and defining a compartment in it. In the preferred embodiment, two pulleys 240 are mounted within the compartment 188 by means of stainless steel arrows 244. The outer periphery of each of the pulleys 240 is in the form of channel 240a to accept the thickness of the lifting cable 36 to avoid that the lifting cable is degraded, that is, flattened or crushed. As shown in Figure 6, each pulley 240 is positioned within a closed tolerance near the interior top surface 263a of a rectangular tube 236. In this manner, the interior top surface 236a of the tube 236 serves to prevent the cable from lift 36 jump out of channel 240a of associated pulley 240 during operation. In other words, the inner upper surface 236a of the tubing 236 serves to "hold" the lifting wire 36. Each lifting wire 36 extends upwardly from the lifting cable opening 200 in the base plate 100 on the pulleys 240 within of the lifting cable roller compartment 188 and thereafter extends downwardly from the lifting cable roller compartment 188. Once the lifting cable 36 has come out of the lifting cable roller compartment 188, it extends through a downwardly facing guide tip receptacle 296 that is attached to the inner side of each lifting cable roll compartment as shown in Figures 1, 6, 9 and 10. The purpose of the tip receptacle guide 296 will be explained in detail later in this specification. After the same, each lifting cable 36 extends downwardly along the outside of the axis of the pole pole 24 towards the platform assembly 36. Referring to FIGS., 6 and 9, the platform assembly is shown surrounding the shaft of the pole pole 24 and comprises a generally circular central platform assembly 242, a plurality of antenna mounting arms 243a and a plurality of luminaire mounting arms 243b that extend radially outwardly from the central platform assembly 242. As shown in Figure 9, the three antenna mounting arms 243a are equidistantly spaced apart from each other around the central platform assembly 242 in approximately one hundred twenty degrees of distance and the three arms of the luminaires 243b are similarly spaced one from another around the central platform assembly 242. The arms 243a are connected to the center of the platform assembly 242 by any conventional means, for example, attached by screws and nuts to a plate welded to the assembly of the central platform 242 (Figures 6 and 9) The arms 243b are joined in a similar way lar. The central platform assembly 242 and the arms 243a and 243b can be made of any suitable material, for example, galvanized tube, tube steel or sheet. It should be understood that the platform assembly 32 described in connection with the preferred embodiment is exemplary and a greater or lesser number of antenna or luminaire arms can be specified based on the application without departing from the spirit of this invention. In addition, the position of the mounting arms of the luminaire and the antenna around the central platform assembly 242 as discussed herein is exemplary and different positions and distances for these arms could be specified, without departing from the spirit of this invention. . Referring to Figures IA and 3, it can be seen that the inner surface of the central ring 242 is provided with a plurality of rollers 246 for protecting the platform stud 32 and the pole pole 24 during the lifting and lowering of the same. Referring to Figures IA and 10, the platform assembly 32 is also provided with a plurality of spring housings 260, which are attached around the lower surface of the central ring 242 and extend downwardly from the platform assembly 32. Each spring housing contains a compression spring 264 (Figure 10) '. The platform assembly 32 is suspended around the shaft of the pole pole 24 by means of the lifting cables 36. These cables extend downwardly from the frame assembly 28 and pass through guide tips facing upwardly. 292 and the spring housings 260. The purpose of the facing tips 292 will be discussed later in this specification. As shown in Figure 10, the lifting cables 36 are held within the spring housings 260 by means of an adapter 272 extending within the compression spring 264 and a wire rope gripper 276 attached to the end of each lifting cable 36 exiting spring housing 260. Repeatability of the operation is an extremely important aspect of the raising / lowering systems for communication equipment. "Repeatability" as used herein, means the ability of a raise / lower system to raise the antennas 12 to a position and orientation that is identical to that occupied by them before lowering the platform assembly 32 for service. As shown in Figures IA and 10, in order to achieve a high degree of repeatability, a plurality, for example, six upwardly projecting guide tips 292 (mentioned above), are provided opposite to each other. spring housings 260 on the platform assembly 32. Additionally, a plurality of corresponding downwardly facing guiding tips 296 (mentioned above) are provided on the inner side of each of the six roll compartments of Lifting cable 188. Referring to Figure 10, the lifting cables 36 are disposed through the respective guide tip receptacles 296 and the guide tips 292. As the platform assembly 32 reaches the raised position, each guide tip 292 enters the hollow opening within the corresponding tip receptacle. guide 296. and the upper surface 296 of the guide tip receptacle 296. The entry of the tips 292 into the guide tip receptacles 296 ensures proper orientation of the antennas 12, thus ensuring a high degree of repeatability. Once the upper surface 242a of the central ring 242 is embedded in the surface of the end 296a of the receptacle of the guide tip, the platform assembly is in the "raised" or "operating" position. The system of the present invention is provided with a cutting element of the internal motor, for example, a frequency inverter 294, for cutting the motor 52 once the platform assembly 32 has reached the operating position. Referring again to Figure 10, in particular, there is shown a large compression spring 264 housed within each of the spring housings 260 located around the interior of the assembly of the central platform 242. According to the platform assembly 32 reaches the operating position the lifting cables continue to be attracted by the operation of the motor 52. This results in exerting a force on the compression springs 264 within the housing 260. The compression springs 264 thus begin to compress and create a resistive force that requires a large torque of the motor 52. In order for the motor to continue to raise the platform assembly 32, it must attract increasing amounts of current to produce greater amounts of torque. It is possible that motor 52 can draw current at the speed exceeding its maximum speed. Such an increase in the speed of the current drawn by the motor 52 can result in damage to it and to the various components of the system 10. In order to avoid much damage, the frequency inverter 294 identified above is provided herein . In particular, the frequency inverter is arranged to detect the current velocity which is drawn by the motor 52 and the power supply to the motor 52 ceases once the previously determined threshold velocity of current is exceeded. A particularly effective frequency inverter 294 is sold under the name 8200 Frequency Inverter Series 0.37-2.2 kW manufactured by Lenze Antriebstechnik. The use of a frequency inverter 294 in combination with a lifting / lowering device is a significant innovation over the use of a mechanical clutch of the prior art, because it is capable of detecting and controlling the current that is attracted by the motor 52 while a mechanical clutch measures the torque that is being applied by the driving shaft of the motor 52. Since the frequency inverter 294 is an electronic device, it is much more accurate and reliable than the mechanical clutch and maintains the calibration for more weather. The inverter 294 is also programmable to allow it to govern the amount of current that the motor 52 attracts. This feature is of considerable importance according to another aspect of this invention. In particular, it allows one to govern the speed at which the motor 52 rotates and thus governs the speed at which the platform assembly 32 ascends and descends along the pole pole 24. In this regard, the telecommunications equipment rising and falling through the device of this invention is extremely costly, often costing hundreds of thousands of dollars. This is in contrast to lighting systems mounted on lifting / lowering devices that cost only hundreds of dollars per luminaire. In order to protect this expensive telecommunications equipment from harm, it is desirable to slow the movement of the platform assembly 32 along the pole pole 24 as it reaches the raised position, for example, within a ten foot (3,048 m) area of the raised position. In the same way it is convenient to decrease the movement of the platform assembly 32 as it approaches the lowered position to service it. It is also convenient that the platform assembly 32 moves at a higher rate of speed when it is traveling between these two zones in order to reduce the total time involved in raising and lowering the telecommunications equipment thereby minimizing the costs related to provide service to this team. To achieve these ends and, as shown in Figures 5 and 16, the system of the present invention includes the apparatus for controlling the rate of rise and fall of the platform assembly 32 along the axis of the pole pole 24. In In particular, as shown in Figure 5, the apparatus for controlling the speed of the present invention is housed within the base assembly 60, and comprises three components, i.e., an element for determining the position of the platform assembly 32 as along the axis of the demastile pole 24, interupting elements and the frequency inverter 294 identified hereinabove. The element for determining the location of the platform assembly 32 on the axis of the pole pole 24 is shown in Figures 5 and 16. Referring now to Figure 16, it can be seen that that element comprises an acme screw 300 having a threaded body and a ball 304 having an internal threaded opening therethrough. The acme screw 300 is coupled to the free end of the shaft (not shown) of the winch drum 176 by means of a right angle gear reducer 302a having a reduction ratio of 1: 1. The threaded body of the acme screw 300 has a predetermined length, for example, ten inches (25.4 cm), and a preferentially determined number of strings per inch, for example, ten. The total length of the acmé screw 300, for example, ten inches (25.4 cm), corresponds to the total length of the mast pole axis 24.

The acme screw 300 is disposed through the internally threaded opening of the movable ball 304. Mounted on the movable ball 304 is an arrow indicator or pointer 306. As the axis of the winch drum rotates in one direction, the acme screw 300 it rotates in the same direction causing the ball 304 to travel in a direction along the threaded body of the acme screw 300 a given distance. Conversely, when the axis of the winch drum rotates in the opposite direction, the ball 304 is caused to travel in the opposite direction. Each inch in length that the ball 304 travels along the threaded body of the acme screw 300 corresponds proportionally to a number of travel feet of the platform assembly 32 along the pole pole 24. For example, every inch the ball 304 running along the coiled tang of the acme screw 300 may represent 10 feet (3,048 m) of travel of the platform assembly 32 along the axis of the pole pole 24. It is presented adjacent to the acme screw a visual scale 306a representing numerically the height of the mast pole shaft 24 in increments of ten feet (3,048 m) from zero to one hundred feet (30.48 m). Zero feet corresponds to the lowest position to give service and one hundred feet (30.48 m) corresponds to the elevated position. The arrow 306 indicates the position of the platform assembly 32 on the axis of the pole pole 24 as it travels from the lowest position to the elevated position.

As shown in Figure 16, the platform assembly 32 is located approximately twenty-three feet (7.01 m) above the pole pole axis 24. A lower stop switch 310 is mounted adjacent the screw 300 in a position corresponding to the lower part of the axis of the pole pole 24. Thus, when the lower stop switch 310 is triggered by the arrow indicator 306 the switch sends a signal to the frequency inverter 294 to stop the supply of current to the motor 52. This makes the motor ceases operation, thus stopping the descent of the platform assembly 32. Similarly, an upper switch 308 is mounted adjacent to the screw 300 in a position corresponding to the upper shaft part of the pole pole 24. When the upper switch 308 is triggered by the indicator of arrow 306 the switch sends a signal to frequency inverter 294 to stop the power supply for the motor 52. This causes the motor to stop operating, thereby stopping the ascent of the platform assembly 32. Additionally, the upper speed change limit switches 314 and lower 312 are provided mounted adjacent to the screw in adjacent positions to the acme screw 300 corresponding to positions near the top and near the bottom of the shaft of the pole pole 24, for example at ten feet (3,048 m) from the top and at ten feet (3,048 m) from the bottom of the pole shaft of mast 24. Thus, the platform assembly begins the ascent from the lowered position, the frequency inverter 294 is initially programmed to run the motor 52 at a reduced speed, for example 1350 rpm. When the lower speed change limit 312 is triggered by the arrow indicator 306, a signal is sent therefrom for the frequency inverter 294. In turn, the frequency inverter 294 adjusts the current level attracted by the motor 52 to increase the speed of the motor 52, for example, from 1350 rpm to 1800 rpm, thus increasing the rate of ascent of the platform assembly 32. When the upper speed change limit 314 is triggered by the arrow indicator 306, a signal is sent to the frequency inverter 294 which in turn effects a decrease in the speed of the internal motor 52, for example, from 1800 rpm to 1350 rpm, thus decreasing the rate of climb. It should be understood that stop and limit switches may be placed at any position along the acme screw 300 as required without departing from the spirit of this invention. An alternative arrangement (not shown) for governing the speed of the ascent and descent of the platform assembly 32 on the shaft of the pole pole 24 could also be implemented by placing limit switches on the length of the pole pole shaft., the limit switches being arranged to send a signal to the frequency inverter 294 once the platform assembly reaches the limit switch. This alternative arrangement is less convenient because the limit switches are on the outer surface of the mast pole shaft 24 and thus are exposed to the weather conditions, instead of being covered within the base 60 assembly. As shown in Figure IA, the coaxial cables 76 extend downwardly from the frame assembly 28 and pass through a plurality, eg, three, adjacent openings in the plate 284 connected to the inner surface of the opposite central platform assembly 242. to each arm 243a. The oaxial cables 76 are gripped within the openings by some suitable means, for example strain relief cable lugs (not shown) that are installed within the openings of the plate 284. The strain relief cable lugs 288 can be of any suitable construction, such as those mentioned previously in connection with the transition assembly 40. Each coaxial cable 76 extends through a respective opening in the plate 284 and is routed through the arm 243a and joins three antennas 12 mounted on the extended end of the associated antenna mounting arm 243a. As shown in Figure 2, a plurality, e.g., three, antennas are attached to the extended end of each antenna mounting arm 243a. It should be understood that the number of antennas shown as attached to the extended end of each antenna mounting arm 243a is merely exemplary and any number of antennas may be mounted therein without departing from the spirit of this invention. As shown in Figure 2, the antennas can be housed inside the optional antenna cylinder 64. Additionally, optional cylinders 68 are provided for luminaires at the extended end of each arm 243b if luminaires are desired or necessary (not shown) in addition to the antennas 12. The power cable 81 is routed through the platform assembly 32 and connected to the equipment mounted thereon in a similar manner. As shown in Figure 5, the mast pole shaft 24 is provided with low safety tie plates 298. Once the platform assembly 32 has been raised to its raised position after servicing, the transition assembly 40 is secured to the low safety tie plates by chain elements 302. Each chain includes a pair of ends, one of which is connected to a ball support swivel 148 and the other end connected to a low plate Safety Tie Down 298. This provides safety backup in the event that winch rope 44 fails. During the operation, in order to lower the platform assembly from its elevated position for service, the coaxial cables 75 are disconnected from the coaxial cables 76 in the connectors 76a. The power cable 80 is disconnected from the power cable 81 at the connector 80a. The power cable is then connected to the connector located at the free end of the power cable 78. The chains 302 are disconnected from the ball-bearing swivel 148 of the transition assembly 40. Next, power is supplied to the motor 52 from of the electric power supply 20. The motor 52 is connected to run in the reverse direction, wherein the winch assembly unrolls the winch cable 44 from the winch drum 176, thereby lowering the platform assembly 32 to its lowered position. . At this moment the engine stops. As the assembly 32 is lowered, the telecommunications cables are retained in the respective openings of the transition assembly 40 as the transition assembly 40 travels upwardly within the axis of the pole pole 24. Additionally, the openings in the portion of the manifold the base plate 100 provides the guidance for the telecommunications cables as they are traversed therethrough. Once the service has been completed, the motor 52 is connected to the forward direction, which acts to wind the winch cable 44 on the winch drum 176, thereby lifting the platform assembly 32 to its raised position. Once the platform assembly reaches the operating position, the frequency inverter stops sending power to the motor 52 and the motor stops operating. After this, the cables are returned to the transition assembly 40, that is, the coaxial cables 75 extending from the radiofrequency equipment 16 are reattached to the connectors 76a and the power cable 80 is disconnected from the power cable 78 and reattached to the connector 80a extending from the transition assembly 40. The chains are reconnected to the ball support swivel 148 of the transition assembly 40. The various major components of the alternative embodiment 400 are shown in Figures 12 to 15. The alternative embodiment 400 basically comprises a pole pole 424 having a base flange 425 (Figures 13 and 14) and a circular upper flange 426 welded to the shaft 424 (Figure 12) . The upper circular flange has an outer edge 426a and an inner edge 426b. As shown in Figures 12 and 15, alternative embodiment 400 also comprises a frame assembly 428 having several roller compartments, 588 and 592, mounted on a base plate 500 (Figure 12). In addition, the alternative embodiment includes a platform assembly 432 that could be formed in any number of shapes and sizes, eg, triangular (Figures 12 and 15), a plurality of survey cables 436 (Figure 13), a transition assembly 440 (FIGS. 13 and 14), a winch assembly 448 (FIG. 13), a winch cable 444 (FIG. 13), an internal motor 452 (FIG. 13), an in-line reducer 453 (FIG. 13), a reducer in FIG. right angle 454 (Figure 13), a frequency inverter 594 (Figure 13, lower lock assembly 456 including lower safety tie plates 598, chains 602 (Figure 13), base assembly 460 (Figure 13), and a cabinet 469 adjacent to the base assembly 460 (Figure 13) for housing the electrical power supplies 420. Referring now to Figure 13, the pole pole of the mast pole 424 of the alternative embodiment is attached to the base assembly 460 and the base assembly joins the concrete slab 463 of the mi Such a way as described in the preferred embodiment 10. The base assembly 460 of the alternative embodiment 400 is configured in the same manner as in the preferred embodiment 10 and houses similar components, that is, the internal motor 452, the winch assembly 448, the gear reducers 453 and 454 and the frequency inverter 594, which are mounted to a base mounting plate 460a. According to the alternative mode 400, it is a design choice to mount the radio frequency equipment 416 on the triangular platform assembly 432 instead of placing that equipment at ground level. As shown in Figure 13, a conduit 469a provides access between the cabinet 469 and the base assembly 460 to allow the electric power cable 480 to be routed from the electrical power supply 420 within the base assembly 460. The current is supplies from power supply 420 to radio frequency equipment 416 mounted to triangular platform assembly 432 via power cable 480. This cable extends through conduit 469a and up through the shaft of mast pole 424. The power cable 480 is detachably connected to the cable 481 via the connector 480a. The power cable 481 extends through the transition assembly 440 and up through the shaft of the pole pole 424 to connect to the equipment, for example radio frequency equipment 416, mounted on the platform 432. As in the preferred embodiment, when you want to lower the platform assembly 32 to a position to service, the electrical power cable is disconnected from the connector 480a and connected to the connector located at the free end of the electric power cable 478. The transition assembly 440 of the alternative embodiment, shown in Figures 13 and 14, is generally circular and can be manufactured from any suitable material, for example galvanized sheet steel. As shown in Figure 14, the transition assembly 440 is provided with a plurality, for example, six, openings for lifting cables 524, a threaded opening for electric power cable 528 and an opening for centrally placed winch cable 532a . Figure 13 shows the lifting cables attached to the transition assembly 440 by any conventional means, such as that described in relation to the preferred embodiment and extend upwardly through the interior of the shaft of the pole pole 424 towards the frame assembly 428. The power cable 481 passes through the transition assembly 440 and extends upwardly through the interior of the shaft of the pole pole 424 to the frame assembly 428. The power cable 481 is gripped within the opening 528 by any means suitable, for example, strain relief cable lugs as previously described in this specification. The winch cable 444 is attached to the transition assembly 440 in the winch cable opening 532 by means previously described in the preferred embodiment. The frame assembly 428 of the alternative embodiment is shown in Figure 12 and comprises a plurality of lift cable roller compartments 588, and roller compartments for electrical power cable 592 mounted by conventional means, eg, bolted, to the base plate 500. The base plate 500 is provided with slotted holes 500b to allow attachment of the base plate 500 to the upper flange 426 by conventional means, for example screws or bolts. The base plate 500 of the alternative embodiment 400 is provided with a centrally located manifold portion (not shown) similar in disposition to the manifold portion described in the preferred embodiment (and shown in Figure 3), except for the provision of the openings for the coaxial signal cables. The manifold portion of the base plate 500 is provided with a plurality of lifting cable openings 502 and an opening for electric power cable 504. Since in this embodiment, the radio frequency equipment 416 is mounted on the platform assembly. triangular 432 instead of at ground level, there is no need to provide openings for the coaxial cables in the manifold portion of the base plate 500 or in the transition assembly 440 since the coaxial signal cables do not run along the outer of the shaft of the pole pole 424. Instead, the coaxial signal cables (not shown) run a short distance from the radio frequency equipment 416 mounted on the platform assembly 432 to the antennas 412 mounted on the platform, thereby improving the operation of the radio. Each of the riser cable openings and the opening for the electrical power cable in the manifold portion of the base plate 500 is located to correspond to the riser cable openings 524 and to the opening of the power cable 528 located on the transition assembly 440 mentioned above. Each opening in the manifold portion of the base plate 500 is fitted with a cylindrical liner similar to that described in the preferred embodiment and shown in Figure 11 in order to minimize friction and drag during lifting and lowering of the assembly. triangular platform 432. The orientation of the lifting cable roller 588 compartments and the electrical power cable compartment 592 are shown in Figures 12 and 15. As shown in Figure 15, each lifting cable roller compartment 588 is positioned with one end located on a lifting cable opening 524 in the manifold portion of the base plate 500 and the other end extending beyond the outer periphery 500a of the plate of base 500. Similarly, the electrical power cable roller compartment 592 is positioned with one end located on an electrical power cable opening 528 of the base plate 500 and the other end extending beyond the outer periphery 500a of the base plate 500. As shown in Figures 13 and 15, the lift cables 436 and the power cable 481 extend upwardly from the transition assembly 440 and through the openings in the manifold portion of the manifold. the base plate 500. The openings in the manifold assembly provide a means for guiding the lifting cables 436 and the electric power cable 481 in a manner that similar to that described in the preferred embodiment. As shown in Figure 15, the internal construction of the lift cable roller compartments 588 and the power cable compartment 592 of this embodiment is basically the same as that described in the preferred embodiment. As in the preferred embodiment, each lift rope roller compartment 588 is provided with downwardly facing guide tip receptacles 593 to ensure repeatability as previously discussed in connection with the preferred embodiment 10. The lift wires 436 and the electric power cable 481 leaves the roller compartments 588 and 592, respectively, and extends downwardly through the guide tip receptacles 593 and along the outside of the shaft of the pole pole 424 toward the platform assembly triangular 432. The details of the triangular platform assembly 432 are shown in Figures 12 and 15 and basically comprise an upper row 530 and a lower row 532 which are connected by joining sections 534. However, it should be understood that according to this invention, any number of rows can be joined together as necessary to form a platform for mounting telecommunications equipment, for example, rectifiers, radio frequency equipment, electrical power supplies, and so on. Additionally, the platform assembly does not necessarily have to be triangular in shape. As shown in Figure 12, upper row 530 of platform assembly 432 comprises a plurality of angled iron pieces 536 that are oriented end-to-end to form a triangular outer shape. The angled iron pieces 536 are held in position by connection with cross members 538 and support members 539 by any suitable means, for example, welding or bolting. The lower row 532 is similar in construction and configuration to the upper row 530. The antennas 412 and the radio frequency equipment 416 are mounted on the outer surface of the steel members at an angle 536 between the upper rows 530 and lower rows 532. As shown in FIG. previously said, the coaxial signal cables (not shown) run a short distance from the radio frequency equipment 416 mounted on the platform assembly 432 to the antennas 412 mounted on the platform, thereby improving radio operation in this mode, since the distance between the antennas 412 and the radiofrequency equipment 416 has been shortened considerably (compared to other systems of the prior art), the operation of the radius is significantly improved.

Additionally, since expensive radio frequency equipment is mounted on platform assembly 432, instead of at ground level, the risk of vandalism is reduced. Additionally, since the equipment is mounted on a platform, this alternative mode can be implemented in a smaller area than the systems of the prior art. Referring now to Figure 15, as in the preferred embodiment, the upper row 530 of the triangular platform assembly 432 of the system 400 s provides with a plurality of spring housings 540 and guide tips 542. The spring housings 540 are attached to the lower surface of a cross member 538 and extend upwards. The triangular frame assembly 432 is suspended around the pole pole of the mast 424 by means of the lifting cables 436, which extend downwardly from the frame assembly 428 and pass through the guide tips facing upwards. 542 and the spring housings 540. The hoisting ropes 436 are held within the spring housings 540 with the means described in relation to the preferred system 10. The triangular platform assembly can be lowered from its raised position to service them to the antennas 412 and to another equipment mounted on the platform, for example, radio frequency equipment. Referring now to Figure 15, the upper and lower rows are also provided with a plurality of rollers 544 for protecting the platform assembly 432 and the pole pole shaft 424 during the lifting and lowering of the platform assembly 432. operation of the alternative mode of the system 400 is similar to the operation of the preferred embodiment of the system 10. At this point it seems repetitive that the shapes and sizes of the various components described herein are shown for the purpose of example, only and other shapes and / or shapes could be used. size without departing from the spirit of this invention. In addition, the number of components shown and the number of openings shown passing through those components are exemplary as well as a greater or lesser number of components and opening therethrough could be employed without departing from the spirit of this invention.

Claims (61)

1. CLAIMS 1. A system (10, 400) for lowering and lifting a first telecommunications equipment (12, 416) along a pole of mast (24,424), the first telecommunications equipment (12,416) being connected with the second equipment telecommunications (16, 420) placed at ground level by elements of at least one telecommunications cable (81,481), the telecommunications cable (81,481) having a first end connected to the first telecommunications equipment (12,416) and a second end connected to the second telecommunications equipment (16, 420), the second end of the telecommunications cable (81,481) being separable from the second telecommunications equipment (16,420) to allow lowering and lifting of the first telecommunications equipment (12,416) characterized in that said system comprises: to. an elongated mast pole (24,424) having an open upper end, and a lower end, an outer surface and a passage extending between the open upper end and the lower end; b. a platform element (32, 432) surrounding the outer surface of the mast pole (24, 424) and can be moved along a length thereof, the platform element (32, 432) being disposed to mount the first telecommunications equipment (12, 416) thereof; c. a frame member (28, 428) attached to the pole pole (24, 424) adjacent the open top end, the frame member (28, 428) comprising pulley elements (e.g., 194, 224, 240). elements for guiding at least one survey cable (for example, 200) and one element for guiding at least one telecommunications cable (for example, 196, 204, 528); d. at least one lifting cable (36, 436) having a first end and a second end, the first end being connected to the platform element (32, 432), the lifting cable (36, 436) extending over the pulley elements (e.g., 194, 224, 240), along the guide member (e.g., 200) and along the mast pole passage (24, 424); and. a crane element (for example 52, 452) coupled to the lower end of the mast pole (24, 424), the crane element (eg, 52, 452) including a winch cable (44, 444) having a free end, the crane element (for example 52, 452) being provided to selectively lift the platform element (32, 432) to a raised position adjacent to the upper end of the pole pole (24, 424) and lowering the platform (32,432) at a lowered position adjacent to the lower end of the mast pole (24, 424); and f. a transition element (40, 440) located within the passage of the mast pole (24, 424), the transition element (40, 440) coupling the second end of the at least one lifting cable (36, 436) to the end freeing the winch cable (44, 444), the transition element (40, 440) further comprising an element for retaining at least one telecommunications cable (for example, 120, 128, 528.
2. 2. The system (10, 400 ) of claim 1 characterized in that the crane element (e.g., 52, 452) comprises a winch drum (e.g., 176) in which the winch cable (44, 444) is wound, the drum being winch (for example, 176) at the lower end of the mast pole (24, 424) 3.
3. The system (10, 400) of claim 2 characterized in that the crane element (for example, 52, 452) further comprises a motor (52, 452) coupled to the winch drum (e.g., 176).
4. The system (10, 400) of claim 3, characterized in that the crane element (for example, 52, 452) further comprises a first gear element (for example, 53, 453) with the first gear element being interposed ( for example, 53, 453) between the motor (52, 452) and the winch drum (for example, 176) and having a first end coupled to the motor (52, 452) and a second end coupled to the winch drum ( for example, 176).
5. 5. The system (10, 400) of claim 4 characterized in that the crane element (for example, 52, 452) further comprises a second gear element (for example, 54, 454) with the second gear element being interposed (e.g. , 54, 454) between the first gear element (53, 453) and the winch drum (for example, 176) and having a first end coupled to the first gear element (53, 453) and a second end coupled to the gear (53, 453). winch drum (for example, 176).
6. The system (10, 400) of claim 5 characterized in that the first gear element (e.g., 53, 453) comprises a line reducer (53, 453) and the second gear element (e.g., 54, 454) comprises a right angle reducer (54, 454).
7. The system (10, 400) of claim 6 characterized in that the crane element (e.g., 52, 452) further comprises a frequency inverter (294, 594) coupled to the motor (52, 452).
8. The system (10, 400) of claim 1 characterized in that the mast pole (24, 424) is made conical uniformly on its total length from its lower end towards its upper end.
9. The system (10, 400) of claim 1, characterized in that the transition element (40, 440) comprises at least one lifting cable opening (124, 524) extending the entire length thereof to be coupled with the second end of at least one lifting cable (36, 436) with the transition element (40, 440).
10. The system (10, 400) of claim 9, characterized in that the transition element (40, 440) comprises at least one winch cable opening (132, 532) extending the entire length thereof for coupling the free end of at least one winch cable (44, 444) with the transition element (40, 440).
11. The system (10, 400) of claim 10 characterized by a winch cable connection element (e.g., 148) positioned within the winch cable opening (132, 532) of the transition element (40, 440) for coupling the free end of the winch cable (44, 444) with the transition element (40, 440).
12. The system (10, 400) of claim 11 characterized in that a winch cable connection element (e.g., 148) is a rotating ball support head (148).
13. The system (10, 400) of claim 10, characterized in that the transition element (40, 440) comprises a central portion and wherein the winch cable opening (132, 532) is located in the central portion of the element. of transition (40, 440).
14. 14. The system (10) of claim 1 characterized in that the retaining element of the at least one telecommunications cable (120, 128) of the transition element (40) comprises an element for retaining at least one signal cable (for example, 120). ).
15. The system (10) of claim 14 characterized in that the element for retaining at least one signal cable (e.g., 120) comprises at least one aperture for signal cable (120) extending through the transition element (40) and a cable handle (164) attached thereto.
16. 16. The system (10) of claim 15 characterized in that at least one opening for signal cable (120) has rope.
17. The system (10, 400) of claim 1 characterized in that the element for retaining at least one telecommunications cable (eg, 120, 128, 528) of the transition element (40, 440) comprises an element to be retained when minus one power cable (for example 128, 528).
18. The system (10, 400) of claim 17 characterized in that the element for retaining at least one power cable (e.g., 128, 528) comprises at least one opening for power cable (128, 528) extending through the transition element (40, 400) and a cable handle (e.g., 168) attached thereto.
19. 19. The system (10, 400) of claim 18, characterized in that the at least one opening for power cable (128, 528) has rope.
20. The system (10) of claim 15 characterized in that the transition element (40) further comprises an element for retaining at least one power cable (e.g., 128).
21. The system (10) of claim 20 characterized in that the element for retaining at least one power cable (e.g., 128) comprises at least one power cable opening (128) extending through the transition element. (40) and a cable grip (168) attached thereto.
22. 22. The system (10) of claim 21 characterized in that the opening for at least one power cable (128) has rope.
23. 23. The system (10) of claim 22, characterized in that the transition element (40) is generally triangular in shape.
24. The system (400) of claim 18, characterized in that the transition element (440) is generally circular in shape.
25. The system (10) of claim 1 characterized in that the platform element (32) comprises a generally circular central ring (242) having an inner surface, an outer surface and a lower surface.
26. 26. The system (10) of claim 25 characterized in that the platform element (32) additionally comprises at least one antenna mounting arm (243a), the antenna mounting arm (243a) having a first end connected to the outer surface of the central ring (242) and a second end extending outwardly of the central ring (242), the second end being arranged to mount at least one antenna (12) thereon.
27. The system (10) of claim 25 characterized in that the platform element (32) additionally comprises at least one luminaire mounting arm (243b), having the luminaire mounting arm (243b) a first end connected to the outer surface of the central ring (242) and a second end extending outwardly from the central ring (242), the second end being arranged to mount at least one luminaire (68) in the same.
28. The system (10) of claim 25 characterized in that the platform element (32) further comprises at least one roller (246) attached to the inner surface of the circular shank (242).
29. 29. The system (400) of claim 1"characterized in that the platform element (432) is adapted to support telecommunications elements comprising at least one antenna (412) and at least one unit of telecommunications equipment (e.g., 416) connected thereto and wherein the platform element (432) is arranged to support the at least one antenna (412) and the at least one telecommunications equipment unit (e.g., 416) thereon.
30. 30. The system (400) of claim 29, characterized in that the platform element (432) comprises at least two row antennas (530, 532) connected by connecting elements (534).
31. 31. The system (400) of claim 30, characterized in that each row antenna (530, 532) is generally triangular in shape).
32. 32. The system (10, 400) of claim 1 characterized in that the frame element (28, 428) additionally comprises a base plate (100, 500) having a central portion and an upper surface, the elements of pulley (eg, 194, 224, 240) to the upper surface of the base plate (100, 500).
33. The system (10, 400) of claim 32, characterized in that the base plate (100, 500) comprises the element for guiding at least one telecommunications cable (for example, 196, 204, 528) and the element for guide at least one lifting cable (for example, 200).
34. 34. The system (10, 400) of claim 33 characterized in that the element for guiding at least one telecommunications cable (eg, 200) comprises at least one lifting cable opening (eg, 200) extending to through the base plate (100, 500).
35. 35. The system (10) of claim 34, characterized in that the guiding element of at least one telecommunications cable (196, 204) comprises at least one signal cable opening (196) that extends through the communication plate. base (100).
36. 36. The system (10) of claim 35 characterized in that the at least one signal cable opening (196) is located in the central portion of the base plate (100).
37. 37. The system (10, 400) of claim 34, characterized in that the at least one opening of the lifting cable (for example 200) is located in the central portion of the base plate (100, 400).
38. 38. The system (10) of claim 36 characterized by a liner (212) located within the at least one opening for signal cable (196).
39. 39. The system (10, 400) of claim 33 characterized in that the element for guiding at least one telecommunications cable (eg, 196, 204, 528) comprises at least one opening for power cable (204, 528) that is extends through the base plate (100, 500).
40. 40. The system (10, 400) of claim 39 characterized in that the at least one opening for power cable (204, 528) is located in the central portion of the base plate (100, 500).
41. 41. The system (10, 400) of claim 40 further characterized by a liner (212) located within at least one opening for power cable (204, 528).
42. 42. The system (10) of claim 35 further characterized by at least one opening for power cable (204) extending through the base plate (100).
43. 43. The system (10) of claim 42 characterized in that at least one opening for power cable (204) is located in the central portion of the base plate (100).
44. 44. The system (10) of claim 43 characterized by a liner (212) located within the opening of at least one power cable (204).
45. 45. The system (10) of claim 42 characterized in that the base plate (100) is generally circular.
46. 46. The system (10, 400) of claim 1 characterized in that the pulley member (e.g., 194, 224, 240) comprises at least one roller element (e.g., 194, 224) and at least one lightening roller roll compartment ( for example, 240).
47. 47. The system (10) of claim 46, characterized in that the roller element for telecommunications cable (194, 224) comprises at least one roller for signal cable (for example, 224).
48. 48. The system (10, 400) of claim 46 characterized in that the roller element for telecommunications cable (194, 224) comprises at least one roller for power cable (for example, 194).
49. 49. The system (10) of claim 47, characterized in that the roller for telecommunications cable (194, 224) also comprises at least one roller for power cable (194).
50. 50. The system (10) of claim 35 characterized in that the at least one opening for lifting cable (200) is arranged to allow the passage therethrough, of a lifting cable (36) having a thickness, being at least one lifting cable opening (200) of the size substantially equal to the thickness of said lifting cable (36), and wherein the at least one opening for signal cable (196) is arranged to allow passage through the same of a signal cable (76) having a thickness, said at least one signal cable opening (196 made the same size substantially as the thickness as the signal cable (76), the base plate being closed ( 100) except for at least one lifting cable opening (200) and at least one signal cable opening (196) to prevent the entry of undesirable materials therethrough
51. 51. The system (10) of the claim 5 0 characterized in that at least one power cable opening (204) extends through the base plate (100), at least one power cable opening (204) is arranged to allow passage therethrough of a power cable (204). power cable (81) having a thickness, at least one opening for power cable (204) made of the size substantially equal to the thickness of the power cable (81).
52. 52. The system (10, 100) of claim 1 characterized in that the platform element (32, 432) is provided with an upper surface and the frame element (28, 428) is provided with a lower surface, further comprising the system (10, 400) a plurality of coupling bolts (292, 542) connected to the upper surface of the platform element (32, 432) and extending upwards, the system additionally comprises a plurality of coupling bolt receptacles (e.g., 296), connected to the bottom surface of the frame member (28, 428), said coupling bolts (292, 542) being opposite the receptacles (e.g., 296) and arranged to fit within said receptacles (e.g., 296) when the platform elements (32, 432) are raised to the elevated position to ensure accurate repeatability of the first telecommunications equipment.
53. 53. A system (10, 400) for lowering and lifting an object along a mast pole (24, 424) having an open upper end, a lower end, the system (10, 400) comprising: a. an elongated mast pole (24,424) having an open upper end, and a lower end, an outer surface and a passage extending between the open upper end and the lower end; b. a platform element (32, 432) that surrounds the outer surface of the pole pole (24, 424) and can be moved along a length thereof; c. a pulley element (e.g., 194, 224, 240) located on the open upper end of the pole pole (24, 424); d. at least one lifting cable (36, 436) having a first end and a second end, the first end being connected to the platform element (32, 432), the lifting cable (36, 436) which extends over the pulley elements (eg, 194, 224, 240), and which is connected at its second end to a motor element (52, 452); (pages 43 and 44) e. a motor element (for example 52, 452) provided for raising and lowering the platform element (32, 432) on the mast pole (24, 424), said motor element (52, 452) attracts current for the purpose raising and lowering the platform (32, 432); and f. a cutting element of the motor (for example, 294, 594) coupled to the motor element (52, 452), which monitors the motor cutting element the amount of current drawn by the motor element (52, 452), being said motor cut-off element (eg, 294, 594) for sending a cut signal to the motor element (52, 452) when a previously determined level of current has been driven by the motor element (52, 452) .
54. 54. The system (10, 400) of claim 53 wherein the motor cut-off element (e.g., 294, 594) comprises a frequency inverter (294, 594).
55. 55. A system (10, 400) for lowering and lifting an object along a mast pole (24, 424), the system comprising: a. an elongated mast pole (24,424) having an open upper end, and a lower end, an outer surface and a passage extending between the open upper end and the lower end, - b. a platform element (32, 432) that surrounds the outer surface of the pole pole (24, 424) and can be moved along the length thereof; c. a pulley element (eg, 194, 224, 240) located at the open upper end of the pole pole (24, 424), - d. at least one lifting cable (36, 436) having a first end and a second end, the first end being connected to the platform element (32, 432), the lifting cable (36, 436) extending over the elements of pulleys (e.g., 194, 224, 240), and which is connected at its second end to an engine element (52, 452); and. an engine element (for example 52, 452) provided for raising and lowering the platform element (32, 432) on the pole pole (24, 424); and f. a base member (60, 460) having an upper portion, the lower end of the pole pole (24, 424) being mounted on the upper portion of the base member (60, 460). The base element (60, 460) being arranged to accommodate an internal motor (52, 452), a winch assembly (48, 448) and at least one gear element (e.g., 52, 53, 452, 453) .
56. 56. The system (10, 400) of claim 56 wherein the base member further comprises a base plate (60a) arranged to mount the internal motor (52, 452), the winch assembly (48, 448) and at least one gear reducer (for example 52, 53, 452, 453).
57. 57. A system (10, 400) for lowering and lifting an object along a mast pole (24, 424), the system comprising: a. an elongated mast pole (24,424) having an open upper end, and a lower end, an outer surface and a passage extending between the open upper end and the lower end; b. a platform element (32, 432) that surrounds the outer surface of the pole pole (24, 424) and can be moved along the length thereof; c. a pulley element (e.g., 194, 224, 240) located on the open upper end of the pole pole (24, 424); d. at least one lifting cable (36, 436) having a first end and a second end, the first end being connected to the platform element (32, 432), the lifting cable (36, 436) extending over the elements of pulleys (e.g., 194, 224, 240), and which is connected at its second end to an engine element (52, 452); and. a crane element (for example 52, 452) provided for raising and lowering the platform element (32, 432) on the pole of mast (24, 424); f. a position determining element (32) of the platform element on the mast pole; and g. a speed control element (31) coupled to the position determining element (32), and arranged to transmit a signal that governs the speed of the crane element (for example 52, 452) when the platform element (32, 432) has reached a predetermined position, causing the signal governing the speed that the crane element (for example, 52, 452) moves the platform element to a predetermined second speed, the second speed previously determined being different than the one previously determined. first speed previously determined.
58. 58. The system (10, 400) of claim 58 wherein the crane element (e.g., 52, 452) includes a motor (52, 452) and the speed that governs the signal is provided to the motor (52, 452). ).
59. 59. The system (10, 400) of claim 58 wherein the previously determined second speed is greater than the first previously determined speed.
60. 60. The system (10, 400) of claim 58 wherein the previously determined second speed is less than the first previously determined speed.
61. 61. The system (10, 400) of claim 58 wherein the speed control element (31) is also arranged to transmit a stop signal to the crane element (e.g., 52, 452) when the platform element ( 32, 432) has reached a predetermined position, causing that stop signal that the crane element (52, 452) stop its movement on the platform element (32, 432). SUMMARY One system (10, 400) for lowering and lifting a telecommunications equipment along a pole of mast (24, 424). The system (10, 400) comprises a pole of mast (24, 424), a platform element (32, 432), a frame element (28, 428), a plurality of lifting cables (36, 436), a crane element (for example 52, 452), and a transition element (40, 440). The platform element (32, 432) surrounds the outer surface of the mast pole (24, 424), and can be moved along its length. The platform element (32, 432) is configured for mounting telecommunications equipment thereon. The frame element (28, 428) is attached at the open upper end of the pole arrow of the mast (24, 424), and comprises pulley elements (eg, 194, 224, 240), elements to guide at least to a survey cable (for example, 200), and elements to guide at least one telecommunications cable, that is, a signal cable or an energy cable. Each lifting cable (36, 436) has a first end connected to the platform element (32, 432), and extends through the guide element, and through the passage of the pole pole (24, 424). The crane element, (eg, 52, 452) is secured to the lower end of the mast pole (24, 424), and is provided to selectively raise and lower the platform element (32, 432). The pulley element (e.g., 194, 224, 240) includes a winch cable (44, 444) having a free end. The transition element (40, 440) is located within the passage of the pole pole (24, 424), and is provided for coupling the second end of the lifting cables (36, 436) with the free end of the winch cable (44, 444). The transition element (40, 440) also provides an element for retaining at least one telecommunications cable therein (eg, 120, 128, 528).