| 摘要 |
<p>This invention relates to a hub and strut-end assembly for the roof of a tent frame comprising two hub portions (20B,20L) fitted together in stacked relation to define therebetween a set of four sockets, each of which has a channel-shaped entryway adapted to receive a strut sleeve 26 projecting from a ball 24 on the inner end of one of the strut endcaps (14) and to permit limited side-to-side movement therein when in extended position as well as movement between its extended position and a folded position wherein the strut (18) connected thereto lies in nested essentially parallel relation to the other struts of the frame. Each entryway in the hub has its opposite walls (34,36) flared so that adjacent pairs of strut-endcaps retained in their respective entryway, can move from an extended right-angular relation to one another into an acute- angular relation thus cooperating with a like pair of sockets on the other side of the hub to enable the struts mounted therein to self-adjust and move from an essentially radial position from which a square wall or roof structure can be formed into non-radial relationship adapted for the formation of four-sided )figures with at least two unequal side.</p> |
