| 摘要 |
A recreational balancing apparatus comprises a frame defining a horizontal opening therein, and a balancing board mounted on a joint assembly in a manner which allows the balancing board to tilt in every direction, and be capable of 360.degree . rotation. The apparatus further comprises an upstanding support post, the post being secur ed to a lower portion of the joint assembly, and a lower portion of the support post passes downwardly through the frame opening. Support legs are secured to the frame, and a collar, having an opening therein, is provided. A first set of high tension springs connects the collar to the frame, the springs each being connected to a periphery of the collar and an inside portion of the frame, so that the collar is supported centrally within the horizontal frame opening, to provide a stable center for the support pos t to slide through, and achieve limited tiltable movement in a radial axis about a cent er of rotation positioned in the center of the collar. A second set of high tension springs or high elastic shock modulus cords each has a first end mounted to a side of the frame and a second end attached to a bottom portion of the support post, whereby the second set of high tension springs supports the bottom of the post and permits limited movement thereon, in a vertical direction.
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