Patent ID: 6471597
Filing Date: 2002-10-29
Classification: A47D

Abstract:
A baby swing, comprising:a) a frame and a baby seat swingably engaged to the frame via an arm; and b) a swing mechanism engaged to the frame for swinging of the baby seat, wherein the swing mechanism comprises: i) a housing; ii) an electric motor engaged to the housing; iii) a worm gear extending from the electric motor and being driven by the motor; iv) a rotating gear pivotally affixed to the housing and including a crank; v) an axle drive mounted to the housing via a bearing, wherein the axle drive includes a slot, wherein the axle drive is driven by the crank engaging the slot; vi) an axle having a first and second end, with the axle further having a spline, wherein the axle drive drives the axle, wherein the first end of the axle is fixedly received by the axle drive which is formed to receive the spline of the axle such that rotation and oscillation is prevented between the axle drive and axle; vii) a cap having a central aperture shaped to receive the axle and the spline of the axle in a nonrotating, fixed fashion, wherein the cap further includes a peripheral aperture; viii) an integral coil spring having first and second ends, wherein the first end is engaged in the peripheral aperture of the cap such that the cap must immediately drive said first end; ix) a hanger mount, wherein the hanger mount is pivotally joined to the second end of the axle via a bearing between the second end of the axle and the hanger mount such that the hanger mount may oscillate relative to the axle, wherein the coil spring is received within the hanger mount and the cap closes off the hanger mount with the coil spring received therein, wherein the hanger mount engages the arm that in turn is engaged to the baby seat, wherein the hanger mount includes an aperture to receive the second end of the coil spring such that said second end must immediately drive said hanger mount such that rotation of the worm gear immediately rotates the crank which in turn immediately oscillates the axle drive which in turn immediately oscillates the cap which in turn immediately oscillates one end of the coil spring which in turn is isolated from the second end of the integral coil spring which in turn immediately oscillates the hanger mount which in turn immediately oscillates the arm which in turn immediately oscillates the baby seat.