Patent ID: 6578488
Filing Date: 2003-06-17
Classification: F42C

Abstract:
A safety device for a pyrotechnic impact fuse of a ballistic high explosive shell, comprising a pyrotechnically reactive material which is initiated upon impact, wherein a ball safety device only passes into the armed position after launch of a shell, and whereina central initiation passage (72) is arranged in a penetration passage of a valve body (65) and is provided with a ball guide (42) with spaced end abutments (44, 75) for a ball (43) mounted therein, and lateral firing passages (41) open into the central initiation passage (72) behind the ball (43) in the armed position, characterized in that a prestressed spring element (73) is disposed between the ball (43) and the abutment (75) which faces towards a secondary explosive charge, and the ball (43) in the safe position seals off the initiation passage (72) with the lateral firing passages (41) opening into the initiation passage (72), against firing vapors flowing therethrough.