Patent ID: 8499775
Filing Date: 2013-08-06
Classification: A45B

Abstract:
1. A leverage-based large-sized umbrella, comprising: a central post, an internal shaft, a cap, an intermediate collar, a runner, ribs, stretchers, and driving bars, the internal shaft being fit into an interior chamber of the central post, the cap being fixed to a top end of the internal shaft, the intermediate collar and the runner being fit over the central post, the runner being arranged below the intermediate collar, each of the ribs having an inner end connected to the cap, each of the stretchers having two ends respectively connected to the intermediate collar and the respective rib, each of the driving bars having an end connected to the runner and an opposite end connected to the respective rib at a location between the connection of the rib to the cap and the connection of the rib to the respective stretcher, characterized in that: the runner is fixed to the central post and the intermediate collar is movable fit to the central post; a connector is movably fit over the central post at a location below the runner, a pull bar is connected between the connector and the intermediate collar, and the connector comprises a fixing member that is engageable and fixable to the central post.