| 摘要 |
An automatic umbrella includes a plurality of ribs respectively pivotally secured to a plurality of ferrules respectively mounted or held on a telescopic central shaft, an opening tensioning spring formed in the central shaft for opening the umbrella, at least a retraction restoring spring for closing the umbrella, and a tip cap slidably mounted on a grip, in which the tip cap may be operated for depressing a biasing lever for disengaging a lower ferrule pivotally linked with the ribs for opening the umbrella, and may be further operated for depressing a sliding latch for releasing an elastic force of the opening tensioning spring to allow a restoring operation acted by the retraction restoring springs for closing the umbrella from its opening state.
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