Radio broadcasting device and relay tower therefor

• US 20030095077A1
• Filed: 09/04/2002
• Published: 05/22/2003
• Est. Priority Date: 03/07/2000
• Status: Active Grant

• Current Assignee: Emmanuel Livadiotti
• Original Assignee: Emmanuel Livadiotti
• Inventors: Livadiotti, Emmanuel
• Granted Patent: US 6,903,705 B2
• Time in Patent Office: Days
• US Class Current: 343/890
• CPC Class Codes: H01Q 1/005 Damping of vibrations; Means for reducing wind-induced forces
• CPC Class Codes: H01Q 1/1242 Rigid masts specially adapted for supporting an aerial
• CPC Class Codes: H01Q 1/246 specially adapted for base stations

Abstract

A tower for a wireless transmission device including at least one shaft extending upwardly between top and bottom portions, transverse spars extending outwardly from the shaft, at least one brace connected to at least one of the spars and extending between the top and bottom portions, wherein the transverse spars are articulated in relation to the shaft and form, in conjunction with the braces, cells conserving parallelism of the spars.

Claims

1. Tower for a wireless transmission device comprising at least one shaft and transverse spars, characterized in that the transverse spars are articulated in relation to the shaft and form with the braces cells conserving the parallelism of said spars.

2. Tower according to claim 1, characterized in that the connecting means are constituted by at least two inextensible braces arranged at either side of the shaft, attached at one of the ends to the base of the tower and at the other end to the head so as form a deformable parallelogram maintaining the head in an essentially constant plane.

3. Tower according to claim 2, characterized in that the braces are integral with each of the spars so as to form cells the bases and tops of which are maintained in parallel planes.

4. Tower according to claims 1 to 3, characterized in that the spars are connected to the shaft by a recessed articulation along the axis of the shaft, and free in at least one transverse direction and pivoting in relation to at least one transverse axis.

5. Tower according to any one of the preceding claims 1 to 4, characterized in that the spars are constituted by essentially flat elements and the connecting means comprise 3 braces.

6. Tower according to any one of the preceding claims 1 to 5, characterized in that the spars are constituted by essentially flat elements and the connecting means comprise a multiplicity of flexible rods.

7. Tower according to any one of the preceding claims 1 to 6, characterized in that the head presents a faired part that can be oriented along a vertical axis.

8. Tower according to any one of the preceding claims 1 to 7, characterized in that the head is mounted freely in rotation and presents aerodynamic driving means for creation of gyroscopic stabilization.

9. Tower according to any one of the preceding claims 1 to 8, characterized in that the shaft is constituted by a multiplicity of elements that can be recessed.

10. Tower according to claim 9, characterized in that the bottom element is of conical form.

11. Process for the installation of a tower according to claim 10, characterized in that the conical element is installed, the top end of said conical element is equipped with a winch, the top element is hoisted up to a height allowing it to fit into the lower element and continuing on in this manner until reaching the segment intended to fit into the lower element of conical form.

12. Wireless transmission device constituted by a tower according to at least one of claims 1 to 10, the upper part of which supports at least one antenna connected to electronic equipment comprising an HF amplifier located in the top part of the tower, said tower being constituted by at least one flexible median shaft presenting at its top part a head located in a plane essentially perpendicular to said shaft, said shaft being equipped with articulated transverse spars, the tower comprising furthermore non-extensible means connecting the head, said spars and the base of the tower so as to form deformable parallelepiped modules, conserving essentially the parallelism of the spars, the head and the base.

13. Wireless transmission device according to claim 12, characterized in that said electronic equipment is enclosed in a structured shelter integral with the tower.

14. Wireless transmission device according to claim 13, characterized in that said electronic equipment is powered by photovoltaic cells located in the top part of the device.

15. Wireless transmission device according to any one of claims 12 to 14, characterized in that it comprises at its top part a rotary inertial mass producing gyroscopic stabilization.