HINGE OR THE LIKE FOR FOLDING REBOUNDER

摘要

A portable exercise system has a foldable perimeter frame comprising at least two elongated frame members that are joined by hinges. The hinges are joined to ends of the frame members, which ends are generally tubular. Each hinge has a cap-like body having an interior surface that defines a cavity configured to nestingly receive one of the ends of the frame members. A deformable plug is located within the central cavity of the one of the ends. A tightening mechanism is operated to expand the plug radially and thereby cause the end to expand radially such the generally tubular outer surface of the end frictionally engages the interior surface of the a cap-like body.

主权项

1. A portable exercise system comprising:
an frame that defines a central opening and that consists of two equal halves that are rail segments, each half having two frame ends and having attachment points for connection of one or more spring members or elastic members; one or more legs for supporting the frame; a jumping surface composed of a mat attached to the frame; and two hinges according to claim 21 connecting each of the two frame halves, each hinge having two hinge segments that are connected to each other at a pivot point, each hinge segment having a cap that overlaps a frame end, each cap being shaped to fit the shape of the associated frame end.