Patent ID: 7004723

Claim:
A device for controlling variable-pitch vanes in a turbomachine, the vanes having radial pivots mounted in bearings in a casing and connected by links to a control ring surrounding the outside of the casing, said ring comprising two substantially semicircular elements rigidly interconnected at their ends by bridges disposed astride longitudinal flanges of the casing, wherein the links are pivotally mounted on the ends of radial fingers carried by the semicircular elements and by the bridges of the control ring, and wherein the fingers carried by the semicircular elements extend radially outwards from said elements, and the fingers carried by the bridges extend radially inwards from said bridges so that the pivot points of the links on said fingers are at the same distance from the pivot axis of the control ring both for the radial fingers carried by the semicircular elements and for the radial fingers carried by the bridges of the control ring.