Lock mechanism of large umbrella for effecting a multi-sectional length adjustment of telescopic shank
First Claim
1. A lock mechanism mounted in a large umbrella having a handle, a plurality of ribs, a plurality of spreaders, and a canopy, the lock mechanism comprising:
- a sliding sleeve connected to the spreaders and including a lower extension and a first aperture on a surface of the extension;
a telescopic shank including a lower tube fixed in the handle, a sliding upper tube adapted to slide in the lower tube, and a lock device disposed in the upper tube;
an actuation assembly including a hollow upper enlargement with the extension received therein, a transverse first opening formed on the enlargement, and a spring biased actuation member adapted to have a first predetermined portion disposed in the first aperture for locking the extension in a closed position of the umbrella, and a second predetermined portion disposed externally of the enlargement; and
a spring biased rib fixing assembly disposed between the handle and the actuation assembly, the rib fixing assembly being adapted to fix tips of the ribs in the closed position of the umbrella;
whereby pushing the second predetermined portion of the actuation assembly will disengage the first predetermined portion with the first aperture to unlock the extension of the sliding sleeve for sliding the sleeve upward to open the umbrella, and operating the lock device of the telescope shank will effect a subsequent multi-sectional length adjustment of the shank.
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Accused Products
Abstract
A lock mechanism mounted in a large umbrella includes a sliding sleeve including an aperture on surface of a lower extension, a telescopic shank including a lower tube fixed in a handle and a sliding upper tube, a lock device disposed in the upper tube such that disposing a resilient projection of the lock device through holes of the tubes may fasten the shank, an actuation assembly for receiving the extension and including a transverse opening and a spring biased actuation member having a portion disposed in the aperture for locking the extension in a closed position of the umbrella, the actuation member including a trigger, and a spring biased rib fixing assembly disposed between the handle and the actuation assembly. Pushing the trigger will disengage the portion with the aperture to open the umbrella. Operating the lock device will effect a subsequent multi-sectional length adjustment of the shank.
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Citations
9 Claims
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1. A lock mechanism mounted in a large umbrella having a handle, a plurality of ribs, a plurality of spreaders, and a canopy, the lock mechanism comprising:
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a sliding sleeve connected to the spreaders and including a lower extension and a first aperture on a surface of the extension;
a telescopic shank including a lower tube fixed in the handle, a sliding upper tube adapted to slide in the lower tube, and a lock device disposed in the upper tube;
an actuation assembly including a hollow upper enlargement with the extension received therein, a transverse first opening formed on the enlargement, and a spring biased actuation member adapted to have a first predetermined portion disposed in the first aperture for locking the extension in a closed position of the umbrella, and a second predetermined portion disposed externally of the enlargement; and
a spring biased rib fixing assembly disposed between the handle and the actuation assembly, the rib fixing assembly being adapted to fix tips of the ribs in the closed position of the umbrella;
whereby pushing the second predetermined portion of the actuation assembly will disengage the first predetermined portion with the first aperture to unlock the extension of the sliding sleeve for sliding the sleeve upward to open the umbrella, and operating the lock device of the telescope shank will effect a subsequent multi-sectional length adjustment of the shank. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification