Patent ID: 7913707
Filing Date: 2011-03-29
Classification: A45B

Abstract:
1. An umbrella, comprising: an upright post; a swing mechanism pivotally mounted on the upright post; a frame mounted on the swing mechanism to move in concert with the swing mechanism and to pivot relative to the upright post; wherein the swing mechanism includes: a mounting seat mounted on an upper end of 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 of the pivot seat to drive the pivot seat to pivot relative to the mounting seat; a driven gear secured on the worm to rotate the worm; a propeller shaft rotatably mounted on the upper end of the upright post; a drive gear secured on the propeller shaft to rotate in concert with the propeller shaft and meshing with the driven gear to rotate the driven gear; a rocker arm secured on the propeller shaft to rotate the propeller shaft.