Bourges, France
Bourges, France

Time filter

Source Type

A safety and arming device for an instant impact point fuse for a gyratory projectile and a fuse equipped with such a device. The device includes a rotor carrying a primer held in a safe, non-aligned position with respect to a striker by a sleeve pressed against a flat spot of the rotor. The device also includes a flyweight that, when subjected to the longitudinal acceleration resulting from the shot, exerts a pushing force on a first end of at least one lever, the second end of the at least one lever being located below a collar of the sleeve. The pushing force of the flyweight causes the lever(s) to pivot about a pivot point, the pivoting of the lever then separates the sleeve from the flat spot of the rotor permanently, releasing the rotor.


Patent
Nexter Munitions | Date: 2013-03-05

An arrow-type sub-caliber projectile has a piercing bar extended by a conical portion, and is surrounded by a sabot made of a lightweight material and allows the firing of the projectile in a weapon. This conical portion has a tip of a heating-resistant material with a diameter less than half the diameter of the bar, the tip being connected to the bar by a support structure having no ballistic effects, the bar having a flat front face substantially to the diameter of the bar.


Patent
Nexter Munitions | Date: 2013-11-22

The invention relates to a pyrotechnic gas generator component including an inlet stage formed by a pyrotechnic detonator composition and an intermediate stage disposed between the inlet stage and an outlet stage formed by at least one gas generator composition, said intermediate stage being formed by a compressed black powder layer.


The subject-matter of the invention is a method for controlling the control surfaces of a projectile and the associated projectile comprising incidence steerable control surfaces and comprising at least two control surfaces, each one being rotatable with respect to the projectile around a pivot axis perpendicular to the longitudinal axis X of the projectile, wherein the projectile comprises central means for controlling the control surfaces having at least a spherical shape, a control arm secured to the spherical shape and adapted to rotate the spherical shape, for each control surface a transmission member cooperating with the spherical shape and adapted to transmit to the control surface the rotation movements of the spherical shape, and means for positioning the arm.


Patent
Nexter Munitions | Date: 2013-11-22

The invention relates to a spin-stabilized projectile including a body enclosing a payload formed by a group of sub-projectiles that can be dispersed over a trajectory under the action of a pyrotechnic charge. The projectile is characterised in that the pyrotechnic charge is formed by a detonation relay that is separated from the payload by a piston slidably mounted in the body, said piston comprising a recess covering the detonation relay.


Patent
Nexter Munitions | Date: 2012-07-25

The subject-matter of the invention is a detonator comprising a flying plate propelled by a squib stage comprising at least one first pyrotechnic composition and/or one first explosive, said plate being propelled onto a relay stage comprising at least one secondary explosive, wherein said detonator is provided with thermal insulation means surrounding the squib stage for delaying the temperature rise thereof.


Patent
Nexter Munitions | Date: 2012-01-26

A micro-machined or micro-engraved safety and arming device for a pyrotechnic train of a projectile to which an axial spin motion is imparted during firing, the device includes a shutter to interrupt the pyrotechnic and being held immobile by at least two locks, a first lock or axial acceleration lock that is released further to the application of the acceleration during firing and a second lock that is a centrifugal lock released further to the spinning of the projectile.


Patent
Nexter Munitions | Date: 2012-01-26

A micro-machined or micro-engraved safety and arming device for a projectile pyrotechnic train, said device comprising a substrate onto which a shutter is positioned to ensure the blocking of a channel, said shutter being mobile in translation on said substrate, said shutter being held immobile in the safety position by at least one acceleration lock that is released further to the application of the axial acceleration imparted to said projectile during firing, wherein said acceleration lock is constituted by at least one breakable tongue linking said shutter to said substrate, said tongue being oriented and dimensioned such that the axial inertial stresses developed during firing and exerted on said shutter cause said tongue to break.


A time control device for the movement of a micro-machined or micro-engraved counterweight with respect to a substrate, said counterweight incorporating at least one face having at least one indentation intended to cooperate with at least one other indentation on a housing in which said counterweight moves so as to ensure the delaying of said movement of said counterweight, wherein said one indentation on said counterweight respectively on said housing receiving said counterweight is made on at least one flexible tongue itself integral with said counterweight respectively said housing, said at least one flexible tongue being able to be deformed by bending during the displacement of said counterweight.


The invention relates to a steering method of a projectile and to the associated projectile with incidence steerable fins, comprising at least three fins, each being pivotable with respect to the projectile around a pivot axis perpendicular to the longitudinal axis X of the projectile, wherein the projectile comprises a fin orientation ring, the ring comprising as many arms as there are fins, wherein the ring can translate in a plan P perpendicular to the longitudinal axis X of the projectile and following at least two directions of this plan P, wherein the orientation ring can rotate on itself around its centre 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 pivot the fin around its pivot axis during translation of the ring by positioning means.

Loading Nexter Munitions collaborators
Loading Nexter Munitions collaborators