| 摘要 |
An arrangement of cables, pulleys and cams has been invented which provides a simple, reliable, flexible and inexpensive method of converting rotary carousel motion in the horizontal plane into vertical motion of animals on the carousel. A cam is attached to the center pole of the carousel. The cam is positioned so as to interact with cables which are routed from the carousel animals to be given subsidiary motion (typically up-down). For up-down motion each cable is routed vertically from its animal to the overhead support structure and then along a radial passing neat the center pole and is fastened to the overhead support radially opposite the animal being moved. As the carousel, with animals and cables, rotate around the center pole the cam sequentially intercepts the cables forcing the overhead table paths to lenghten and drawing the animals upward to accomodate the cable path change. As the carouser rotation carries the cables sequentially beyond reach of the cam the cable and horse is restored to its initial position. Continuing carousel rotation causes the cable cycle to continue repetitively. |
