Patent ID: 8814626
Filing Date: 2014-08-26
Classification: A63H

Abstract:
1. An expanding and contracting yo-yo, comprising: a pair of disks, each of the disks having a periphery, an outer face, and an axial center; a cross member connecting the axial centers of the disks to form a spool; a string attached to and wound around the cross member, the string having an end formed into a finger loop; a plurality of overlapping wings attached to at least one of the disks, the wings being pivotal and unfolding to an expanded position extending from the periphery of the disk and folding to a contracted position against the outer face of the disk; a circular outer cover plate forming the outer face of the at least one of the disks, the outer cover plate having a plurality of slots defined therein, the slots being spaced apart radially around the cover plate, the wings extending from the slots, the slots extending at an angle so that the wings overlap in the contracted position; and wherein each of said wings comprises a head, a mounting tab, and a neck joining the head to the mounting tab, the neck being thinned to form a resilient, flexible living hinge, the mounting tabs being press fit into the slots in the outer cover plate so that the living hinge extends slightly above the outer cover plate, the resilient living hinge biasing the wings to the contracted position.