center support gasket 26 in the collapsed configuration of the center support assembly 102 the sliding hub 28 slides to the distal end of the outer center support rod 20 toward the base hub 30 movement of the sliding hub 28 toward the base hub 30 causes the angle between the angled support rods 31 and the outer center support rod 20 to decrease the sliding fastener 29 locks the sliding hub 28 to the outer center support rod 20 in the collapsed configuration see fig4 in some embodiments the center support assembly 102 adopts the extended or open configuration see fig3 when the center support assembly 102 is in use supporting the upper tent assembly 101 in the extended configuration of the center support assembly 102 the inner center support rod 21 is extended beyond the outer center support rod 20 in the extended configuration the latch clips 24 b of the center support latches 24 are unengaged with the protrusions 27 of the center support gasket 26 in the extended configuration of the center support assembly 102 the sliding hub 28 slides along the outer center support rod 20 toward the center support gasket 26 movement of the sliding hub 28 toward the center support gasket 26 causes the angle between the angled support rods 31 and the outer center support rod 20 to increase in the extended configuration of the center support assembly 102 the base support rail assemblies 32.