Rollback ball
First Claim
Patent Images
1. A rollback ball comprising a ball shell and a mechanical tracking device, wherein the mechanical tracking device is housed inside the ball shell and whereina. the ball shell comprises an inner wall;
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each wheel comprises a notch and each shaft comprises a slot, wherein the outer end of each coil spring is anchored to the notch and the center end of each coil spring is anchored to the slot, so that each coil spring is wound around each shaft when each wheel rotates; and
the weight is attached to a center of the symmetrical supporting frame at a bottom, wherein the inner wall of the ball shell comprises a bottom and the weight floats above the bottom of the inner wall of the ball shell, and the weight is configured to prevent the tracking device from rotating within the ball.
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Abstract
The Rollback Ball or Ballmerang is a ball toy consisting of a ball shell and a mechanical tracking device tracking the ball shell by using friction force or magnetic force converting the moving ball kinetic energy to potential energy, and then releasing the potential energy rolling the ball back at the same straight line path to the same launching destination when rolling the ball in any direction on a flat floor.
35 Citations
13 Claims
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1. A rollback ball comprising a ball shell and a mechanical tracking device, wherein the mechanical tracking device is housed inside the ball shell and wherein
a. the ball shell comprises an inner wall; - and
b. the mechanical tracking device comprises a symmetrical supporting frame with three symmetrical arms and three shafts, each shaft protruding perpendicularly from each arm of the frame, three wheels, wherein each wheel has a tire thereon, three spiral coil springs, wherein each coil spring is positioned within each wheel and has an outer end and a center end, and a weight, wherein each of the three wheels is symmetrically arranged around the frame and supported on one of the three shafts, rotates freely thereon, and the tire on each of the wheels leans against the inner wall of the shell; each wheel comprises a notch and each shaft comprises a slot, wherein the outer end of each coil spring is anchored to the notch and the center end of each coil spring is anchored to the slot, so that each coil spring is wound around each shaft when each wheel rotates; and the weight is attached to a center of the symmetrical supporting frame at a bottom, wherein the inner wall of the ball shell comprises a bottom and the weight floats above the bottom of the inner wall of the ball shell, and the weight is configured to prevent the tracking device from rotating within the ball. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification