| 摘要 |
Fuze including safety element ( 30 ) includes an acceleration detector ( 31 ) that acts on a timer ( 32 ) coacting with a primer housing rotor ( 14 ). Rotation of the rotor can be halted by a second safety device ( 35 ) responsive to the dynamic pressure generated by the speed of the projectile ( 11 ) in flight. For this purpose, the device includes a diaphragm ( 36 ) engaging a flexible blade ( 51 ) to space apart the end ( 55 ) of the blade and the rotor when the dynamic pressure has a predetermined value, whereby a primer ( 18 ) can be moved into line in the explosive train. When the dynamic pressure is too low, the end ( 55 ) stops the rotor ( 14 ) from rotating and the firing procedure is also blocked in a notch in the rotor ( 14 ). The resulting fuze thus has highly reliable dual safety element responsive to two separate physical phenomena and having a simple construction.
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