Patent ID: 7258068

Claim:
A safety and arming mechanism for a munition having a longitudinal axis of travel comprising: a housing comprising a body and a cap; a first detonator and an explosive mounted to said housing and in alignment with one another; a longitudinal shaft mounted axially within said housing, centered on the longitudinal axis of travel of said munition; a first component rotatingly fixed to said shaft and moveable around said shaft between a first position and a second position within said housing; a second component mounted on said shaft between said first detonator and said explosive, said second component releasably fixed to said housing and moveable around said shaft between a safe and an armed position when released from said housing, said second component having a bore formed there through said first component having a helically ramped lower surface slidingly engaging with a ramped upper surface of said second component; a biasing member fixed to said shaft and fixed to said second component; and an actuator extending from said first component through said second component, parallel to said shaft, said actuator capable of freeing said second component for rotation with respect to said housing; wherein said bore is aligned with said first detonator and said explosive when said first component is in said second position and said second component is in said armed position; and wherein said second component is releasably fixed to said housing by a boss formed on an aft end of said second component extending aftwards, relative to the axis of travel of said munition, wherein said actuator is aligned with said boss, and said actuator travels longitudinally aftwards relative to the axis of travel of said munition to shear said boss from said second component when said actuator is actuated.