Rotational hoisting device

Abstract

The invention disclosed is a rotational hoisting device that is mounted into the top opening of a mast pole located on a cellular network tower. The hoisting device is connected to a third party block and tackle and hoist line that is connected to a piece of cellular network equipment such as an antenna or radio. The rotational hoisting device can rotate back and forth in the mast pole to achieve mounting of the cellular equipment on a particular position on the mast pole without ever having disconnect the cellular equipment from the hoist lie.

Claims

1. A rotational hoisting device, comprising; a pole having an upper portion and a lower portion whereby the upper portion is separated from the lower portion by a collar; a head having a hollow cylindrical main body that is adapted to be inserted over and on top of the upper portion of the pole and whereby the lower portion of the pole is insertable into a mast pole located on a cellular tower such that the collar comes to rest on a top edge of the mast pole; and a removable block attachable to the head such that a hoist line can be inserted into the block for hoisting an item of cellular tower equipment to the top of the cellular tower for mounting.

2. The rotational hoisting device of claim 1 wherein the head has two vertical parallel plates located on the side of the hollow cylindrical main body and whereby each said vertical parallel plate has an aperture that corresponds to each other such that the removable block can be installed between the vertical parallel plates by using a bolt and nut to attach the block to the vertical parallel plates of the head.

3. The rotational hoisting device of claim 1 further comprising an aperture in the upper portion of the pole purposed for inserting a bolt to ensure that the head maintains position on the pole.

4. The rotational hoisting device of claim 1 further comprising a tubular sleeve that is purposed for insertion into the mast pole such that the rotational hoisting device can be installed into the tubular sleeve where the mast pole does not conform to the diameter of the hoisting device pole bottom portion.

5. The rotational hoisting device of claim 4 further comprising the collar on top of the tubular sleeve such that the rotational hoisting device collar comes to rest on top of the tubular sleeve collar and the hoisting device can be rotated from side to side.

6. A method for hoisting and mounting a cellular component onto the top of a cellular comprising the steps of: providing a rotational hoist device further comprising a pole having an upper portion and a lower portion whereby the upper portion is separated from the lower portion by a collar; a head having a hollow cylindrical main body that is adapted to be inserted over and on top of the upper portion of the pole and whereby the lower portion of the pole is insertable into a mast pole located on a cellular tower such that the collar comes to rest on the top edge of the mast pole; and a removable block attachable to the head such that a hoist line can be inserted into the block for hoisting an item of a cellular tower equipment to the top of the cellular tower for mounting; installing a block between two vertical parallel plates located and installing a hoist line into the block and dropping said hoist line down to the ground for attachment to a piece of cellular equipment; installing said rotational hoist device into the top of a mast pole located at the top of the cellular tower; connecting the tag end of the hoist line to a winch and winching the piece or equipment upwards to the top of the cellular tower; hoisting the equipment to an appropriate level adjacent to the mast pole; rotating the rotational hoist device around the mast pole to a desired position; and mounting the cellular equipment to a desired position on the mast pole.

7. The method of claim 6 further comprising the steps of inserting a tubular sleeve into the mast pole whereby said tubular sleeve has a collar on its top end when the diameter of a given mast pole is to large for the rotational hoist device and then installing the rotational hoist device into the tubular sleeve such that there is a substantially flush fit of the rotational hoist device inside the mast pole.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a perspective exploded view of the rotational hoisting device.

(2) FIG. 2 is an exploded perspective view of the hoisting device and optional sleeve located over a mast pole.

(3) FIG. 3 is a perspective view of the hoisting device installed into the top of a mast pole showing rotation.

(4) FIG. 4 is a perspective view of the hoisting device in operation as it is used to lift and antenna for installation.

(5) FIG. 5 is a perspective view of the hoisting device.

(6) It should be understood that the present drawings are not necessarily to scale and that the embodiments disclosed herein are sometimes illustrated by fragmentary views. In certain instances, details which are not necessary for an understanding of the present invention or which render other details difficult to perceive may have been omitted. It should also be understood that the invention is not necessarily limited to the particular embodiments illustrated herein. Like numbers utilized though-out the various figures designate like or similar parts or structure.

DETAILED DESCRIPTION

(7) Referring now to FIG. 1 there is shown an exploded perspective of the rotational hoist device. For sake of brevity the term rotational hoist device may alternatively be referred to as the “hoisting device” and both terms identify the invention. The hoisting device has a hoist pole 10 that has an upper portion 12 and a lower portion 14 with a collar 16 that is located between the upper portion 12 and the lower portion 14. The hoist pole 10 in one embodiment is 3 feet long. The hoisting device is designed to be inserted into a mast pole 36 on a cellular network tower. Mast poles 36, as shown in FIGS. 2-4, are vertical hollow cylindrical poles that are mounted to super structure such as beams on the top of a cell tower. The mast pole 36 serves two purposes. One purpose of a mast pole 36 is to use it as mounting location for antennas 38 and other cellular equipment. A second purpose or function of the mast pole is to use top of the mast pole 36 as hoisting location as it is normally the tallest structure on a cell phone tower and allows for cellular equipment to be lifted to an adequate height for installation on the mast pole 36 or the cellular tower superstructure located at the top of the tower.

(8) The hoisting device also has a head 18 that has a hollow cylindrical body 22 and two vertical parallel plates 20 that project of a side of the head 18. The two vertical parallel plates 20 each have an aperture 24 that corresponds to the aperture 24 on the other vertical parallel plate. The apertures 24 are purposed for installing a third-party block 30 and tackle by locating the block 30 between the vertical parallel plates 20 and inserting a bolt through said apertures 24 and said block 30 with a nut to secure the block to the head 18. The head 18 is inserted on the upper portion 12 of the hoist pole and comes to rest on the collar 16. An eye bolt 40 and nut are then inserted through an aperture 28 located on the top and through the upper portion of the hoist pole. The eye bolt secures the head 18 to the hoist pole 10 such that the head 18 cannot inadvertently be removed or dislodged. In use, the bottom portion 14 of the hoist pole 10 is inserted into the top opening of a hollow mast pole 36 whereby the collar 16 makes contact with the top edge of the mast pole 36 such that the head 18 is not pinned against the eye bolt 40. Mast poles 36 are made of metal as is the hoist device and hoist pole 10. A user would then take a hoist line and insert it into the block 30 and lower a tag end of the hoist line 44 down to the ground for a person to attach the hoist line 44 to a piece of cellular equipment such as antenna 38 as shown in FIG. 4. The remaining tag end of the hoist line 44 is connected to a winch which slowly raises the cellular equipment up alongside the mast pole 36. A cellular network installation technician would locate, for example, an antenna 38 in the appropriate orientation on the mast pole 36 by rotating the head 18 of the hoist device in a desired direction to then place and install the antenna 38 the desired side of the mast pole 36. The rotational ability of the head 18 to rotate on the upper portion 12 of the hoist pole 10 greatly enhances safety of the technician because it allows for the antenna 38 to be attached at all times to the hoist line 44. Traditionally, technicians would have to detach heavy and cumbersome antennas 36 and other equipment from the hoist line 44 and move them and support them by hand to the desired position on a mast pole 36. This is extremely dangerous work and the hoisting device solves this problem such that the cellular equipment is supported by the hoist line 44 until the equipment is bracketed and installed on a mast pole 36.

(9) Further disclosed in FIG. 2 is an optional tubular sleeve 32 having a collar 34 on its top end. Certain mast poles 36 on particular cellular network towers are wider than others which would cause the bottom portion of 14 of the hoist pole to fit sloppily inside the mast pole 36 causing instability of the hoisting device. The tubular sleeve 32 solves this problem by having an inner diameter substantially equivalent to the diameter for the bottom portion 14 hoist pole 10 and the outer diameter of the tubular sleeve 34 is generally equivalent to the inner diameter of the mast pole 36. The tubular sleeve 34 is inserted into the mast pole 36 and the bottom portion 14 of the hoist pole 10 is inserted into the tubular sleeve. The tubular sleeve 34 or sleeves 34 of different diameter allows one standard hoisting device to be used with a variety of widths that a technician may encounter on the top of various mast poles. The collar 34 is designed to be the resting surface for collar 16 on the hoist pole 10 which allows the head 18 to rotate more freely than if the head 18 were pinned against the eye bolt 40. In an alternate embodiment, a plurality of collars can be installed onto the bottom portion 14 of the hoist pole 10 such that the collars fill the extra space between the inner diameter of the mast pole and the outer diameter of the bottom portion 14 of the mast pole 36.

(10) The principles, embodiments, and modes of operation of the present invention have been set forth in the foregoing specification. The embodiments disclosed herein should be interpreted as illustrating the present invention and not as restricting it. The foregoing disclosure is not intended to limit the range of equivalent structure available to a person of ordinary skill in the art in any way, but rather to expand the range of equivalent structures in ways not previously contemplated. Numerous variations and changes can be made to the foregoing illustrative embodiments without departing from the scope and spirit of the present invention.

ELEMENTS

(11) 10 hoist pole 12 upper portion 14 lower portion 16 collar 18 head 20 vertical parallel plates 22 hollow cylindrical body 24 apertures 26 bolt 28 aperture 30 block and tackle 32 sleeve 34 sleeve collar 36 mast pole 38 antenna 40 upper gin pole aperture 42 eye bolt 44 Hoist line