Patent ID: 7789096

Claim:
A fully automatic collapsible and multi-foldable umbrella, comprising an umbrella rib, an upper nest, a lower nest, a middle rod and a compression spring, which is disposed between and presses the upper nest and the lower nest, and surrounds the middle rod, characterized in that: the middle rod has an upper internal plug and a lower internal plug disposed inside the middle rod, a fastener is pivotally connected to the upper internal plug, an internal side of the fastener is supported by the compression spring to have elasticity to partially project out of the middle rod and to fasten an external tube of the middle rod, so that the umbrella is opened, the fastener is formed with a slanting slide hole, and the umbrella further comprises: a first pull wire having one end connected to the lower internal plug of the middle rod and the other end connected to the upper nest after the first pull wire wraps around pulleys on the upper nest and the lower nest; and a second pull wire, which is disposed in the middle rod, and has an upper end connected to the fastener in the upper internal plug and a lower end connected to a runner on a handle, the upper end of the second pull wire slides in the slide hole to press the fastener down so that the runner drives the fastener to close the umbrella.