| 摘要 |
An automated swing includes a support frame assembly and a swinging frame assembly pivotally mounted to the support frame assembly. A seat is carried by the swinging frame assembly, and a swinging drive mechanism is interposed between the support frame assembly and the swinging frame assembly. The swinging drive mechanism includes a pair of resilient belts. Each belt is driven by an elliptical pulley mounted to a rotating drive shaft, with each belt being engageable with the swinging frame assembly. Upon rotation of the elliptical pulleys in response to rotation of the drive shaft, the belts pull the swinging frame assembly in one direction, with tension being introduced into the belts. Continued rotation of the elliptical pulleys releases tension in the belts, to allow the swinging frame assembly to swing in the other direction. The resiliency of the belts provides smooth transition between forward and rearward movement of the swinging frame assembly, to provide a smooth and comfortable swinging motion.
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