Safety device and weapons (1) for a fuze (101) ogive intended for a spinning projectile, device (1) comprising a rotor (2) carrier primer (3) held in a safety position misaligned with respect to a plunger (5) by a sleeve (4) mounted on a flat portion (2a) of the rotor (2), device characterized in that it comprises a counterweight (8) intended when subjected to longitudinal acceleration following the shot, to exert a thrust force on a first end of at least one lever (10), the second end of the at least one lever (10) located under a collar (4a) of the sleeve (4), by pivoting the thrust force of counterpoise (8) to the or levers (10) around a pivot point (12) located between the two ends of the lever (10), separating the pivoting of the or levers (10) to the sleeve (4) of the flat portion (2a) of the rotor (2) permanently to release the rotation of this RDial mo.
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