| 摘要 |
A telescopic umbrella frame comprises at least two telescopic stick parts, the upper of which is nearest to the crown of the umbrella and has the smallest cross-section, and the lower of which is nearest to the handle end of the umbrella and has the greatest cross-section, and a main and an auxiliary slider which slide on the stick and which support a canopy frame, the auxiliary slider sliding on the stick between the main slider and the crown, and the main slider being able to be locked to the stick when the canopy frame is open and having an internal cross-section corresponding to the external cross-section of the lower stick part. The upper stick part is provided with projections or a sleeve adjacent the crown, these projections or sleeve being arranged to fit into the bore of the main slider when the main slider is in its locking position with the canopy frame open so that the main slider is held steady on the upper stick part. The sleeve may be provided by an extension on the lower end of the auxiliary slider.
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