| 摘要 |
A portable shelter including an expandable component and an expandable component support. The expandable component including at least one structural element, e.g., a wall, configured to extend from, and retract into, an opening in a wall of the portable shelter. The expandable component support including a first non-roller bearing assembly affixed to the portable shelter to bear at least a portion of the weight of the at least one structural element.
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