Abstract: According to the invention, in order to lift said safety detent, use is made of a multi-vane fan (5), which is arranged inside the fuselage (2) of the projectile, but the vanes (4) of which pass through said fuselage (2) via a lateral opening (3).

Abstract: According to the invention, in order to lift said safety detent, use is made of a multi-vane fan (5), which is arranged inside the fuselage (2) of the projectile, but the vanes (4) of which pass through said fuselage (2) via a lateral opening (3).

Abstract: The present invention relates to priming device for the explosive charge of a sub-munition scattered by a carrier, of the type incorporating a firing pin onto which a deployable drag ribbon has been attached, a primer able to be driven by a motor organ and a detonating primer to ignite the explosive charge. This device also comprises self-destruction means for the sub-munition operating after a predetermined delay, such means being activated by the extraction of a self-destruction lock. It is characterized in that the self-destruction lock is integral with the drag ribbon and is therefore extracted by the ribbon during its deployment.

Abstract: A method and apparatus for protecting and arming fuses in a projectile to satisfy safety requirements and to initiate ignition with only minimal delay. In accordance with the method, after launch of a projectile, behind a cap having a central inlet opening a safety device of a turbine/ignition pin unit is released and the impeller thereof is subjected to ram pressure. The ram pressure displaces the turbine/ignition pin unit into a front position, to act as impact detector. In a device constructed in accordance with the invention, the turbine/ignition pin unit has a screw thread on its shank and is screwed into a threaded bushing so that the ram pressure displaces the unit, against the direction of flow into the front position. On impact, the rear end of the unit acts as a percussion needle and initiates an ignition chain.

Abstract: A fuze mechanism (1) for projectiles, rockets, bomblets and mines which is of the type including a fuze housing (2) and a self-destruct device containing a pyrotechnic delay arrangement (10) and a firing pin (11), with the fuze housing (2) having a side opening (5) for a transversely movable detonator carrier (4) which can be moved out beyond the outer housing contour into the armed position and which contains the pyrotechnic delay arrangement (10) and a fuze detonator (7). To manufacture fuze mechanisms (1) which are simple and free of spin and whose self-destruct devices are additionally provided with a delay time that is as long as possible, the firing pin (11) for the self-destruct mechanism is pivotably fastened to the fuze housing (2) in the region of the side opening (5).

Abstract: A fuze for a bomblet projectile of the type including a primary firing pin mounted in a housing for axial displacement in the longitudinal direction and a detonation charge carried by a slide disposed in the housing for displacement in a direction transverse to said longitudinal direction of the housing, between a safety position, wherein the detonation charge is not aligned with the primary firing pin, and an armed position, wherein the detonation charge is aligned with primary firing pin. To further improve the firing and safety devices of such fuzes and permit safe pick-up of duds, a lateral recess is provided in a side surface of the slide in the form of a longitudinal groove so that the movement of the slide, if minimum centrifugal forces are no longer present, can be arrested in an intermediate position by renewed engagement of a spring tensioned safety pin in the recess.

Abstract: A slider type fuse for a cargo warhead grenade. The slider is slidable in a lane normal to the axis of the striker pin and carries additional to the detonator a pyrotechnic device comprising an igniter charge, a booster charge removed therefrom and located in close proximity to the detonator, a delay charge between the two and swingable striker means which become unlocked in the armed state and are adapted to strike the igniter charge in consequence of centrifugal forces that develop in the course of flight. The delay of the pyrotechnic device is designed to outlast the flight time of the grenade. Whenever the striker does not strike the detonator when the grenade hits the target, the detonator is initiated by the booster charge of the pyrotechnic device.

Abstract: The sub-munition is provided with an arming device comprising a striker member, movable substantially in the direction of its longitudinal axis, and a detonator carried by a slide movable from a first position in which the detonator is located out of the path of the striker member to a second position in which the detonator is brought into the path of the said member and beneath it; the striker member is provided with a threaded stem screwed into a threaded hole of a bush movable axially on the body of the sub-munition in such a way that the striker member is brought from the said first to the said second position upon unscrewing of the stem from the threaded hole; a pair of strip form flexible elements are connected to the striker member, one end of which flexible elements is fixed to the striker member and each of which can be disposed, when the sub-munition is expelled from the projectile, in a twisted configuration in such a way that the aerodynamic forces acting on them cause a moment to be transmitted t

Abstract: A cluster bomb grenade having a fuse and striker pin mechanism in the rear ortion is known per se. On the rear portion there are mounted telescoping wings in a centro-symmetrical arrangement and adapted to swing from a folded to an unfolded position. There are provided retainer means cooperating with the striker pin in such a fashion that in the locking position of the striker pin the wings are located in the folded position, which retainer means are adapted to be jettisoned upon retraction of the striker pin. There are also provided stop means for arresting the wings in a desired position. When in operation the grenade is rejected from its cargo projectile the telescoping wings unfold and extend, whereby the spin rate of the grenade is gradually reduced.