| 摘要 |
<p>A flipper foot for a toy uses a cylindrical inner support on a shaft and an outer housing fitting loosely over the support. The outer housing is oblong with rounded ends and has inside dimensions slightly larger than the inner support and includes an oblong slot through which the shaft extends. As the toy moves along, the inner support moves along the inside of the outer housing to one of the rounded ends, rotates the housing 180 DEG to flip the housing ahead of the direction of motion of the inner support and then moves along the inside of the housing toward the other rounded end so that the outer housing rotates 180 DEG then stays still for an interval then rotates another 180 DEG and so on as the toy moves steadily along to produce a flipper foot effect.</p> |
