Cover ejection and fin deployment system for a gun-launched projectile
First Claim
1. Apparatus for covering and deploying folded steering fins of a missile in flight, wherein for each fin there is an associated cover which defines a slot for engaging a locking member in the closed position and a first camming surface for ejecting the cover, said apparatus comprising:
- a plurality of deployment actuators, one for each fin, each actuator having a rotatable link mounted on a pivot pin disposed in a hole in the rotatable ink, the rotatable link including a first portion comprising a locking member for engaging said slot in said cover to lock said cover in a closed position and a second portion having a second camming surface for bearing against the first camming surface of the cover to drive the cover radially outward into the slipstream for jettisoning from the missile.
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Accused Products
Abstract
A fin cover release and deployment system designed for high G forces of gun-launched missiles. In one embodiment, a pyrotechnic actuator drives actuator arms to first release and eject the fin slot covers, followed by deployment of the fins radially outward to the steering position. Following complete ejection of the covers, the fins are driven outwardly by cam surfaces along the latch arms, followed by a spring and wedge mechanism installed interiorly of the fin steering shaft to lock the fins in the fully deployed state. In another embodiment, a motor and rotating threaded shaft replace the pyrotechnic actuator.
89 Citations
20 Claims
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1. Apparatus for covering and deploying folded steering fins of a missile in flight, wherein for each fin there is an associated cover which defines a slot for engaging a locking member in the closed position and a first camming surface for ejecting the cover, said apparatus comprising:
a plurality of deployment actuators, one for each fin, each actuator having a rotatable link mounted on a pivot pin disposed in a hole in the rotatable ink, the rotatable link including a first portion comprising a locking member for engaging said slot in said cover to lock said cover in a closed position and a second portion having a second camming surface for bearing against the first camming surface of the cover to drive the cover radially outward into the slipstream for jettisoning from the missile. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
Specification