Patent ID: 8776809

Claim:
A short force arm deflection device, adapted to be mounted to a section of a center post of an umbrella between a top cap and a runner, and comprising: an upper deflection member, which is connected to a lower end of an upper post segment of the center post, the upper deflection member forming a pivot hole, a first pivot pin being received through the pivot hole to pivotally couple the upper deflection member to a lower deflection member; the lower deflection member, which is connected to an upper end of a lower post segment of the center post, the lower deflection member forming a pivot hole, through which the first pivot pin is received to allow of relative rotation between the upper deflection member and the lower deflection member about the first pivot pin thereby realizing deflection of the umbrella; and a barrel, which receives therein a compression spring and is fit over a connection between the lower deflection member and the lower post segment; wherein in opening the umbrella, the runner is pulled upward along the lower post segment by a pull cord and comes in contact with the barrel so as to cause the relative rotation between the upper deflection member and the lower deflection member for realizing the deflection between the top cap and the runner to make an umbrella canopy incline at an inclination angle.