Portable shelters

A shelter comprising a frame structure, the frame structure comprising two pole structures and a hub structure, wherein the hub structure interconnects the two pole structures, and wherein each pole structure comprises:

• a first rigid portion extending along an axis;
• a flexible shaft extending along the axis, wherein a first end of the flexible shaft is attached to the first rigid portion;
• a connection element directly mounted to a second end of the flexible shaft distal from the first end of the flexible shaft, wherein the connection element is configured to connect the second end of the flexible shaft to the hub structure, wherein when the connection element is connected to the hub structure, the connection element and the flexible shaft together are pivotable or rotatable relative to the hub structure;
• and
• a second rigid portion that is movable relative to the first rigid portion between a first position in which the flexible shaft is free to flex relative to the axis, and a second position in which the second rigid portion restrains the flexible shaft;
• wherein the connection element is positioned entirely outside of the second rigid portion when the second rigid portion is in the second position.

A shelter comprising a frame structure, wherein:

• (a) the frame structure comprises a roof portion;
• (b) the roof portion comprises a pole structure;
• (c) the pole structure extends between a first end of the pole structure and a second end of the pole structure;
• (d) the pole structure comprises (i) a first pole portion extending along an axis from the first end of the pole structure and (ii) a flexible shaft connected to the first pole portion and extending from the first pole portion toward the second end of the pole structure;
• (e) the pole structure is configurable to a first configuration in which the pole structure has a first length along the axis between the first end of the pole structure and the second end of the pole structure;
• (f) the pole structure is configurable to a second configuration in which the pole structure has a second length along the axis between the first end of the pole structure and the second end of the pole structure, wherein the second length is less than the first length;
• (g) when the pole structure is in the second configuration, at least part of the flexible shaft diverges away from the axis;
• and
• (h) the pole structure further comprises a second pole portion, wherein the second pole portion is movable relative to the first pole portion and the flexible shaft between (i) a first position in which the second pole portion limits at least one of flexure of the flexible shaft or divergence of the flexible shaft away from the axis and (ii) a second position different from the first position.