F - Mech Eng,Light,Heat,Weapons – 42 – C
Patent
F - Mech Eng,Light,Heat,Weapons
42
C
89/3.2
F42C 15/34 (2006.01) F42C 15/44 (2006.01)
Patent
CA 1309608
ABSTRACT OF THE DISCLOSURE An ammunition unit is disposed for firing from a gun. The ammunition unit is provided with a fuze which includes electronics with an associated electrical trajectory safety device (BA) which prevents arming of the ammunition unit within a trajectory safety distance. A movable portion (8) may be activated with the aid of an arming igniter (10) which is actuable with the electrical trajectory safety device (BA). upon its activation, the movable portion executes an instantaneous movement in which it moves a bursting cap (12) disposed in the movable portion into an arming position (12') in register with the initiation detonator (11) which is included in a detonation chain actuable by means of an impact or a proximity fuze contact. The movable portion (8) is also lockable by locking means in the form of a pin which is actuable on a retardation in the ammunition unit caused by a first hit of the ammunition unit against a first object located within the trajectory safety distance. Upon its activation, the locking device realizes a locking of the movable portion which is thereafter prevented from executing the above-mentioned instantaneous movement even if the first hit were to cause such mechanical action on the electronics as entails activation of the arming igniter. Thereby, the ammunition unit will, on a second hit, assume the safe position entailing that total bursting of the ammunition unit through the intermediary of the bursting cap is prevented if such bursting is caused by shock-triggering of the bursting cap in the unsafe position. Publication Fig.: Fig. 2.
579347
Astrom Bert
Nygards Olof
Aktiebolaget Bofors
Astrom Bert
Fetherstonhaugh & Co.
Nygards Olof
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