Umbrella having an angle adjustable function
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United States of America Patent
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Mar 29, 2011
Issued Date -
N/A
app pub date -
Jul 7, 2009
filing date -
Jul 7, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
An umbrella includes an upright post, a swing mechanism mounted on the upright post and a frame mounted on the swing mechanism. The swing mechanism includes a mounting seat mounted on the upright post, a pivot seat pivotally mounted on the mounting seat and having a lower end provided with a worm wheel, a worm rotatably mounted on the mounting seat and meshing with the worm wheel, a driven gear secured on the worm, a propeller shaft rotatably mounted on the upright post, a drive gear secured on the propeller shaft and meshing with the driven gear, and a rocker arm secured on the propeller shaft. Thus, when the swing mechanism is operated, the frame is rolled and tilted relative to the upright post leftward or rightward to adjust the inclined angle the frame to provide a better shading effect.
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Cited Art Landscape
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