Aeronautics and astronautics – Missile stabilization or trajectory control – Externally mounted stabilizing appendage
Patent
1986-04-09
1987-12-01
Kyle, Deborah L.
Aeronautics and astronautics
Missile stabilization or trajectory control
Externally mounted stabilizing appendage
744115, 74425, 74 8914, 244 49, F42B 15027, F16H 100
Patent
active
047098775
ABSTRACT:
A mechanism for rotating a missile control surface 6 about an axis 26 from the illustrated stowed position within the missile to a deployed position in which it extends radially from the missile axis M--M and for then turning the surface about radial axis 13 so as to steer the missile. A single drive motor 22 is coupled by worm 20 to a bevel gear 18 mounted in a bracket 12, the bracket being turnable about axis 13 with respect to a fixed support 10. The control surface 6 is fixed via arm 23 to a bevel gear 24, which gear is mounted to the bracket 12 for rotation about axis 26 and is engaged with gear 18. While the surface 6 is stowed, a sprung locking pin 14 carried by the bracket 12 is held in engagement with support 10 by gear 18 so that rotation of the motor 22 rotates gear 18 with respect to bracket 12 and hence rotates gear 24 along with arm 23 and control surface 6 about axis 26. When the surface so comes to its deployed position, a hole 25 in gear 18 becomes aligned with pin 14 and the pin moves into the hole so fixing gear 18 with respect to the bracket. Rotation of the shaft of motor 22 then produces rotation of bracket 12, gear 18 and surface 6 about axis 13.
The mechanism can be used in other situations where it is required to erect a member from a stowed position to one of a range of operative positions and to then move the member within that range.
REFERENCES:
patent: 3098445 (1963-07-01), Jackson
patent: 3688334 (1972-09-01), Peterson
patent: 4028950 (1977-06-01), Osterday
patent: 4323208 (1982-04-01), Ball
patent: 4560121 (1985-12-01), Terp
patent: 4575025 (1986-03-01), Sadvary et al.
British Aerospace PLC
Carone Michael J.
Kyle Deborah L.
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