| 摘要 |
An automatic umbrella includes a closing controller formed as a pushing rod pivotally connected on a push button of a control device for disengaging a locking head of the rope for closing the umbrella from its opening state upon depression of the push button, with the pushing rod being biased as downwardly thrusted by a middle tubular shaft when folding the umbrella for preventing an unexpected closing operation after opening the umbrella. The rope of the umbrella control device has an integrally formed roller holder for pivotally securing a roller on the holder for guiding the rope, with the integrally formed roller holder embedded in a lower runner of the rib assembly for reducing the assembly cost. The rib assembly includes an outer joint member for pivotally connecting the outer ribs having a pair of elongated lugs of an the outer joint member operatively clamping an outer pressed end portion of a middle rib within the elongated lugs of the outer joint member for stabilizing the outer ribs of the rib assembly when opening the umbrella; and a top rib having an outer bending edge portion bent downwardly from an outer end of the top rib to be spaced between two side walls of the U-shaped top rib to prevent the collapse or deformation of the top rib for prolonging its service life.
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