Supports – Brackets – Specially mounted or attached
Reexamination Certificate
1999-05-26
2001-08-14
Ramirez, Ramon O. (Department: 3632)
Supports
Brackets
Specially mounted or attached
C248S300000, C411S400000
Reexamination Certificate
active
06273377
ABSTRACT:
CROSS-REFERENCE TO RELATED APPLICATION
This application claims priority of European Patent Applications No. 98460018.9, which was filed on May 29, 1998.
TECHNICAL FIELD
The present invention concerns the fixing of “aerial” equipment and more particularly the fixing of antenna.
BACKGROUND OF THE INVENTION
Pylons, or other basic supports intended to receive antenna, have sectional steel sections either integrated or built into their structure. Antennas, or their poles, are anchored to the sectional steel sections with the aid of an intermediate support element. These sectional steel sections are commonly known in the trade as “rafters”, and will be referred to herein as rafters.
Rafters have different types of sections that vary in shape and dimension. For the most part, the sections are round bar sections or angle bar sections. The angle bar sections may have a right or closed or open angle. Corresponding to each of the section shapes is a particular shape of intermediate support element.
A problem with this is that in his daily work, an operator laying antenna is required to always have a complete range of intermediate support elements available on site in order to be able to use the one that corresponds to the type of rafter used.
SUMMARY OF THE INVENTION
In order to solve this problem, the invention offers a single intermediate support device able to be used on a plurality of rafters with different sections whilst ensuring effective and reliable anchoring. According to the invention, this intermediate support device anchors an equipment item, such as an antenna, on an angle bar rafter. The intermediate support device includes an anchoring portion for fixing the equipment integral with an anchoring portion of the rafter. The anchoring portion includes an anchoring base to be applied to the outside of a first wing of the rafter. The anchoring base has a first element at one end of the anchoring base. The first element hooks onto the free edge of the first wing of the rafter. Optionally, the first element may consist of an end return of the base forming with it an acute rectilinear angle. The anchoring portion also includes at least one shank hook that hooks onto the free edge of a second wing of the rafter. Each shank hook passes into a hole of the anchoring base at a distance from the first element. In one embodiment of the invention, the holes can be elongated slits orientated in a direction corresponding to a transverse direction of the rafter, and, for each shank hook, the anchoring base can have a set of these slits aligned in a direction corresponding to the transverse direction of the rafter. Each shank hook has its end portion threaded so as to receive a tightening nut. An interposition element is located between the tightening nut and the anchoring base to ensure an adequate bearing of the nut on the base. The portion of the interposition element intended to come into contact with the anchoring base can be a rounded profile segment, allowing a variable slanting of the shank hook transversally with respect to the rafter. This allows an effective anchoring on any one of a plurality of angle bar rafters regardless of their rectilinear angle and the dimensions of their section. Optionally, two shank hooks may be provided and may be spaced from each other in a direction corresponding to the length of the rafter. The interposition element can then be a small bar common to the two shank hooks. The anchoring base may also have stiffening returns on two opposing sides. The direction of the stiffening returns corresponds to the transverse direction of the rafter.
In an alternative embodiment of the invention, U-shaped fastening elements can be used instead of shank hooks. The U-shaped fastening elements traverse the anchoring base via their extremities to allow anchoring on round section rafters. The passage holes in the anchoring base provided for the extremities of the fastening elements are advantageously the same holes that are used for the passage of the shank hooks.
REFERENCES:
patent: 2675982 (1954-04-01), Budy
patent: 3880090 (1975-04-01), Duclos
patent: 4079487 (1978-03-01), Coop, Sr.
patent: 4957251 (1990-09-01), Hubbard
patent: 5215281 (1993-06-01), Sherman
Lucent Technologies - Inc.
Ramirez Ramon O.
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