Patent ID: 6810894
Filing Date: 2004-11-02
Classification: A45B

Abstract:
An automatic folding umbrella comprisinga set of telescopic shafts including an upper shaft, a middle shaft and a lower shaft, a notch fixed at a top of the upper shaft, a runner movable along an upper shaft, a pull ring installed on the upper shaft and installed between the notch and the runner, a handle including a control device within, fixed at a lower end of the lower shaft, a plurality of ribs and stretchers connecting the notch and the runner, expandable springs installed between the notch and the pull ring, expandable springs installed between the pull ring and runner, at least one first buckle installed between two shafts, characterized in that: a push and brake device installed at an upper end of the middle shaft, the push and brake device includes a sleeve in the middle shaft, a push rod in the sleeve, the push rod has an upper tapered and a lower tapered head, an expandable spring in the sleeve for ejecting the push rod, a pull line installed between the push rod and a break block of the control device, a second buckle is installed at the lower end of the upper shaft, a buckle stud and an expandable spring in an inner hole of the buckle ring, where as after the buckle stud passes through holes of the upper shaft, middle shaft, and then insert into a guide groove in the push rod between a upper tapered head and a lower tapered head.