Patent ID: 8087883

Claim:
A device for controlling a variable-pitch vane for a turbomachine compressor, the device comprising: a rod which is substantially cylindrical in shape; means for fastening a first end of the rod on a pivot of a vane to be controlled, the first end of the rod being engaged in a bore in the pivot of the vane; connection means between a second end of the rod and a control ring; and clamping means for clamping the first end of the rod in the bore in the pivot in order to fasten the rod to the pivot, the clamping means exerting clamping in a direction that is substantially perpendicular to the longitudinal axis of the rod, wherein a slot is formed in a head of the pivot of the vane in a plane containing the longitudinal axis of the rod and lies in the middle of the pivot such that the head is split into two portions which are substantially symmetrical about the plane, an orifice is formed through the head of the pivot of the vane in a direction substantially perpendicular to the plane of the slot, and a screw is mounted in the orifice of the pivot and clamped by a clamping nut so as to clamp said slot, and wherein a cylindrical portion of the body of the screw abuts the first end of the rod when the screw is mounted in the orifice in the pivot of the vane.