Abstract: A canopy support structure includes first and second hubs coupled to and movable along the pole or first and second hubs of which one is coupled to and movable along a track. The first and second hubs are movable toward each other during extension of the canopy support structure and away from each other during retraction of the canopy support structure. A plurality of articulating arms is connected directly or indirectly to the first and second hubs. The articulating arms include sets of scissor-connected primary articulating arms. At least some of the sets of scissor-connected primary articulating arms are connected directly to the first and second hubs and extend outward from the first and secondary hubs during expansion of the canopy support structure.