US Patent 7770971 Seat support structure for a child motion device

A child motion device has a frame assembly configured to rest on a floor surface, a drive system defining a generally vertical axis of rotation, and a support arm supported above the floor surface by the frame assembly. The support arm is cantilevered from near the axis of rotation and has a driven end coupled to the drive system, which pivotally reciprocates the support arm through a partial orbit around the axis of rotation. A seat holder is carried by the support arm spaced from the driven end and a seat is supported by the seat holder. The seat and seat holder are constructed to permit the seat to be removed from the seat holder. The seat is usable as a seat when removed from the seat holder and can be positioned on the seat holder in more than one optional seat facing orientation.