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US 4,664,338 AGranted
Projectile having extendable wings
AssigneeDiehl GmbH & Co.
InventorsRaimar Steuer, Bernd Brieseck
Life of this patent
Estimating the term…
Abstract
A projectile possessing extendable wings or fins which are adapted to be pivoted radially outwardly of the projectile. The wing or fin includes a flexible covering and a tensioning device; for example, a strut arrangement, and with the wing or fin being displaceable from a retracted position prior to launch of the projectile to an outwardly extended position in which the applicable covering portion is tensioned by the tensioning device so as to thereby provide a stable, predetermined aerodynamically defined wing or fin configuration.
Claims14
A projectile having extendable wings;
- longitudinal recesses arranged along an outer wall surface of the projectile, said wings being hingedly fastened to said projectile so as to be retractable into said recesses and pivotable outwardly thereof, each of said wings comprising a strut arrangement and a flexible covering tensioned by said strut arrangement upon extension of each wing;
- an aerodynamically rigid profiled nose spar defining a leading edge encompassed by said covering behind the leading edge of said wing;
- means hinging the forward end of said nose spar in the forward end of said longitudinal recess so as to be laterally and forwardly unfoldable out of the recess;
- said nose spar having a trailing edge having rearwardly opening space therein;
- a rigid rear spar at least partly receivable in said rearwardly opening space;
- and means hinging said rear spar to said nose spar;
- a base rib extending along the longitudinal direction of the projectile between an inner end of the nose spar and an inner end of the rear spar proximate the surface of the projectile in the extended position of the wing, said rib being subdivided by a knee hinge joint.
4 more elements
A projectile having extendable wings;
- longitudinal recesses arranged along an outer wall surface of the projectile, said wings being hingedly fastened to said projectile so as to be retractable into said recesses and pivotable outwardly thereof, each of said wings comprising a strut arrangement and a flexible covering tensioned by said strut arrangement upon extension of each wing;
- an aerodynamically rigid profiled nose spar defining a leading edge encompassed by said covering behind the leading edge of said wing;
- means hinging the forward end of said nose spar in the forward end of said longitudinal recess so as to be laterally and forwardly unfoldable out of the recess;
- said nose spar having a trailing edge having a rearwardly opening space therein;
- a rigid rear spar at least partly receivable in said rearwardly opening space;
- and means hinging said rear spar to said nose spar;
- a base strut forming a rigid rocker arm having a leading end hinged so as to have a trailing end of the arm displaceable along the front edge of the rear spar from the outwardly pivotable end of the rear spar towards the inner end of said rear spar upon outward pivoting of the strut arrangement during extending of the wing.
4 more elements
Dependencies are inferred from the claim text.