Motion decoy with biaxial wing beat

摘要

A motion decoy having a body and wings in the form of a waterfowl provides a realistic biaxial wing beat motion. The wing beat motion simultaneously includes a flapping action and a rotation action. The flapping action can sweep through an obtuse angle, while at the same time the rotating action that changes the angle of incidence of the wings at different angular positions. The compound biaxial wing beat motion better replicates the motion of live waterfowl, especially during the “lighting” phase of flight.

主权项

1. A waterfowl motion decoy, comprising:
a hollow body shaped in the form of a waterfowl; at least one wing member shaped in the form of a waterfowl wing; an actuator mounted within the body having a drive shaft rotatable about a drive axis; a swivel joint pivotally coupled to the body so as to pivot about a pivot axis; and a linkage assembly coupled to the drive shaft and the at least one wing member; wherein rotation of the drive shaft about the drive axis simultaneously causes the linkage assembly to pivot the swivel joint about the pivot axis and rotate the at least one wing member about a rotation axis that pivots about the pivot axis along with the swivel joint; wherein the linkage assembly includes a first part that extends along the rotation axis and rotates with the at least one wing member; wherein the linkage assembly includes a second part that extends along an axis that intersects the rotation axis and pivots about the rotation axis along with rotation of the first part; wherein the swivel joint includes a bore and an end opening disposed about the rotation axis through which the first part extends, and wherein the swivel joint includes a facial opening about an axis intersecting the rotation axis through which the second part extends.