Abstract: Collapsible umbrella having a resilient rib tensioning member connected to an end portion of the central shaft and interconnected with a first rib end portion and a second end portion. In response to moving forces against the rib connector it moves from a default position to a first, a second and a third open position to a second to a third. In the first open position, the rib tensioning member exerts a first threshold holding force on the second rib end portion, whereas in the second position, a second threshold holding force holds the second rib end portion, which is greater than the first. The rib tensioning member exerts a third threshold holding force on the second rib end portion, which is less than the second threshold holding force. The ribs having a rib weight sufficient to bias the second rib end portions towards a mounting surface.

Abstract: Collapsible umbrella having a resilient rib tensioning member connected to an end portion of the central shaft and interconnected with a first rib end portion and a second end portion. In response to moving forces against the rib connector it moves from a default position to a first, a second and a third open position to a second to a third. In the first open position, the rib tensioning member exerts a first threshold holding force on the second rib end portion, whereas in the second position, a second threshold holding force holds the second rib end portion, which is greater than the first. The rib tensioning member exerts a third threshold holding force on the second rib end portion, which is less than the second threshold holding force. The ribs having a rib weight sufficient to bias the second rib end portions towards a mounting surface.