Igniter having a safety device for a projectile to be fired...

F - Mech Eng,Light,Heat,Weapons – 42 – C

Patent

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Details

F42C 15/34 (2006.01) F42C 15/26 (2006.01)

Patent

CA 2440731

The igniter comprises a disk-shaped element (15) for interruption or release of an ignition chain (13a, 13b) of said igniter, consisting of a central area (16) surrounded by an edge area (17). Only the central area interrupts the ignition chain and is supported by a holder (19). A collector area is provided around the holder below the edge area (17) when seen in the direction of flight of said projectile. The central area (16) and the edge area (17) are connected to each other by a predetermined breaking point (18). The edge area (17) is sheared off from the central area (16) during initial acceleration of the projectile and placed in a reception area (21) whereupon the central area (16) is also removed from the ignition chain (13a, 13b) by the angular momentum of the projectile.

Selon l'invention, le dispositif d'allumage présente un élément en forme de disque (15) destiné à interrompre ou à libérer une chaîne d'allumage (13a, 13b) du dispositif d'allumage, et doté d'une zone centrale (16) et d'une zone périphérique (17) entourant celle-ci. Seule la zone centrale interrompt la chaîne d'allumage et est maintenue par un dispositif de maintien (19). Autour du dispositif de maintien se trouve un espace de réception situé, vu dans la direction de déplacement du projectile, en dessous de la zone périphérique (17). La zone centrale (16) et la zone périphérique (17) sont reliées par une partie de rupture (18). Lors de l'accélération initiale du projectile, la zone périphérique (17) est détachée de la zone centrale (16) pour être placée dans l'espace de réception (21), la zone centrale (16) étant ensuite également éliminée de la chaîne d'allumage (13a, 13b) en raison du moment angulaire du projectile.

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