| 摘要 |
An exercise device, such as a trampoline, that is foldable with long-lasting rigidity in the framework. The trampoline is made foldable by using hinges to connect sections of the frame of the trampoline. The hinges are configured to provide lateral flexibility in the framework, thereby decreasing the stress applied to the hinges (and increasing the life of the hinges) when the trampoline is folded.
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