Patent ID: 9297622
Filing Date: 2016-03-29
CPC Classification: F42B

Claim Text:
1. A projectile with incidence steerable fins comprising at least three incidence steerable fins, each of the at least three incidence steerable fins being rotatable with respect to the projectile around a pivot axis perpendicular to a longitudinal axis X of the projectile, the projectile comprising: a fin orientation ring, the ring comprising as many arms as there are fins, wherein the ring can translate in a plane P perpendicular to the longitudinal axis X of the projectile and following at least two directions of this plane P, wherein the fin orientation ring can rotate around a centre of the fin orientation ring parallel to the longitudinal axis X of the projectile, each arm comprising means cooperating with an orientation lever fixed to a fin to be able to cause a rotation of the fin around the rotation axis of the fin during movement of the ring, the translation of the ring being ensured by positioning means of the centre of the fin orientation ring in the plane P with respect to an absolute frame centered on the longitudinal axis of the projectile, and wherein the positioning means comprises a disk positioned in a central bore of the ring and comprising a circular opening off-centered with respect to a centre of the disk to move the centre of the fin orientation ring by rotation of the disk.