초록 ▼

A SAFE and ARM mechanism is includes an elongated casing having a first end and a second end. A high-G force firing pin is arranged relatively near to the first end and a low-G force firing pin is arranged relatively near to the second end. A detonator is arranged between the high-G force firing pin

A SAFE and ARM mechanism is includes an elongated casing having a first end and a second end. A high-G force firing pin is arranged relatively near to the first end and a low-G force firing pin is arranged relatively near to the second end. A detonator is arranged between the high-G force firing pin and the first end. When a G-force within a first range of magnitudes is applied to the casing along its longitudinal axis, the low-G force firing pin is displaced to strike a portion of the high-G force firing pin, and if a G-force within a second range of magnitudes is applied to the casing along its longitudinal axis, the high-G force firing pin is displaced to strike the detonator. The device may become ARMED in response to a centrifugal force generated by spinning the casing on its longitudinal axis.

대표청구항 ▼

1. A mechanism configured to transition an explosive device from a SAFE arrangement to an ARMED arrangement, comprising: a first firing pin configured to move along a longitudinal axis in response to a first deceleration force;a delay primer configured to be operated by the first firing pin moving a

1. A mechanism configured to transition an explosive device from a SAFE arrangement to an ARMED arrangement, comprising: a first firing pin configured to move along a longitudinal axis in response to a first deceleration force;a delay primer configured to be operated by the first firing pin moving along the longitudinal axis, the delay primer being configured to generate a pressure force at an end of a delay period;a second firing pin configured to move along the longitudinal axis in response to the pressure force at the end of the delay period and a second deceleration force that is greater than the first deceleration force;a rotor configured to move between first and second radial positions with respect to the longitudinal axis, the first radial position corresponding to the SAFE arrangement, and the second radial position corresponding to the ARMED arrangement; anda detonator configured to be operated by the second firing pin moving along the longitudinal axis when the rotor is in the second radial position, and the detonator being configured to be inoperable when the rotor is in the first radial position. 2. The mechanism of claim 1, further comprising: a first shear pin configured to prevent the first firing pin moving along the longitudinal axis in response to a deceleration force less than the first deceleration force; anda second shear pin configured to prevent the second firing pin moving along the longitudinal axis in response to a deceleration force less than the second deceleration force. 3. The mechanism of claim 2 wherein the second shear pin is configured to prevent the second firing pin moving along the longitudinal axis in response to the delay primer generating less than the pressure force. 4. The mechanism of claim 1, further comprising a first lock configured to prevent the rotor from moving from the first radial position to the second radial position until the mechanism is spinning on the longitudinal axis at a minimum angular speed. 5. The mechanism of claim 4 wherein the minimum angular speed is at least approximately 1,200 revolutions per minute. 6. The mechanism of claim 4 wherein the minimum angular speed is at least approximately 9,000 revolutions per minute. 7. The mechanism of claim 1, further comprising: a first lock configured to prevent the rotor from moving from the first radial position to the second radial position until the mechanism is spinning on the longitudinal axis at a first minimum angular speed; anda second lock configured to prevent the first firing pin moving along the longitudinal axis until the mechanism is spinning on the longitudinal axis at a second minimum angular speed. 8. The mechanism of claim 1, further comprising a rotor lock configured to lock the rotor in the second radial position. 9. The mechanism of claim 1, further comprising: a first lock configured to prevent the rotor from moving from the first radial position to the second radial position until the mechanism is spinning on the longitudinal axis at a first minimum angular speed; anda rotor lock configured to lock the rotor in the second radial position. 10. An explosive device comprising: a mechanism configured to transition from a SAFE arrangement of the explosive device to an ARMED arrangement of the explosive device, the mechanism including— a first firing pin configured to move along a longitudinal axis in response to a first deceleration force;a delay primer configured to be operated by the first firing pin moving along the longitudinal axis, the delay primer being configured to generate a pressure force at an end of a delay period;a second firing pin configured to move along the longitudinal axis in response to the pressure force at the end of the delay period and a second deceleration force that is greater than the first deceleration force;a rotor configured to move between first and second radial positions with respect to the longitudinal axis, the first radial position corresponding to the SAFE arrangement, and the second radial position corresponding to the ARMED arrangement; anda detonator configured to be operated by the second firing pin moving along the longitudinal axis when the rotor is in the second radial position, and the detonator being configured to be inoperable when the rotor is in the first radial position; anda fin configured to rotate the mechanism on the longitudinal axis in response to an air stream flowing parallel to the longitudinal axis. 11. The explosive device of claim 10, wherein the air stream flows at a minimum velocity of approximately 900 feet per second, and the fin rotates the mechanism at a minimum angular velocity of approximately 1,200 revolutions per minute. 12. The explosive device of claim 10, further comprising an explosive charge, wherein the mechanism is positioned aft of the explosive charge along the longitudinal axis. 13. The explosive device of claim 10, further comprising a tail assembly coupling the fin and the mechanism, wherein the tail assembly is positioned aft of the mechanism along the longitudinal axis. 14. The explosive device of claim 10 wherein the mechanism further includes: a first shear pin configured to prevent the first firing pin moving along the longitudinal axis in response to a deceleration force less than the first deceleration force;a second shear pin configured to prevent the second firing pin moving along the longitudinal axis in response to a deceleration force less than the second deceleration force;a first lock configured to prevent the rotor from moving from the first position to the second position until the mechanism is spinning on the longitudinal axis at a minimum angular speed; anda rotor lock configured to lock the rotor in the second position. 15. A mechanism configured to transition an explosive device from a SAFE arrangement to an ARMED arrangement, comprising: a first firing pin configured to move along an axis in response to a first deceleration force;a second firing pin configured to move along the axis in response to a second deceleration force that is greater than the first deceleration force;a rotor configured to move between first and second radial positions with respect to the axis, the first radial position corresponding to the SAFE arrangement, and the second radial position corresponding to the ARMED arrangement; anda detonator configured to be operated by the second firing pin moving along the axis when the rotor is in the second position. 16. The mechanism of claim 15, further comprising a delay primer configured to be operated by the first firing pin moving along the axis. 17. The mechanism of claim 15, further comprising: a first shear pin configured to prevent the first firing pin moving along the axis; anda second shear pin configured to prevent the second firing pin moving along the axis. 18. The mechanism of claim 15, further comprising a first lock configured to prevent the rotor from moving between the first and second radial positions. 19. The mechanism of claim 15, further comprising: a first lock configured to prevent the rotor from moving from the first radial position to the second radial position; anda second lock configured to prevent the first firing pin moving along the axis. 20. The mechanism of claim 15, further comprising a rotor lock configured to lock the rotor in the second radial position.