Patent ID: 7389784
Filing Date: 2008-06-24
Classification: A45B

Abstract:
1. An automatic collapsible umbrella comprised of: a shaft consisting of at least three tubes, including an outer tube, a middle tube, and an inner tube; a handle with a button, the handle being connected with a lower end of the shaft; an upper joint being connected with a top end of the shaft; a runner apparatus provided around the shaft including a middle runner and a lower runner, wherein a control-open spring is placed between the middle runner and the lower runner; a double-ear receiver provided around the shaft above the runner apparatus, a control-close spring being provided around the shaft between the upper joint and the receiver; a frame having its inner ends pivoted with the upper joint, the middle runner, and the lower runner such that by movement of the runners, the frame is expanded to open the umbrella or compressed to close the umbrella; an upper controller and a middle fixer with an inner spring therebetween being provided in the shaft, a bow being received in the upper controller and having a lower hook end extending outward from a slot of the middle fixer, a lower fixer being placed below the middle fixer, the lower fixer having a rod for winding the inner ends of two ropes, both of which have their outer end extending upward to pass around a respective wheel under the upper joint, then downward to pass around a respective other wheel on the receiver, and finally upward to connect with the upper joint, the ropes being kept in tension, the lower fixer having a bottom V-shaped elastic slice, an inner controller being received in a lower inside position of the shaft and connecting with a lower end of an inner wire and having its upper end connected with the upper controller, the inner controller being provided with an upper head and a lower head facing the button of the handle and a side projection being formed on the controller; and a loop placed in the handle having a convex protrusion opposite to the button and facing the heads of the inner controller; the upper controller having on its lower side an inclined plane and the bow having a top inner hook and a lower hook end, wherein a small spring is placed inside the lower hook end to provide a stable elastic force for pushing the lower end outward; wherein when the umbrella is placed into a closed state, the upper head is stopped in a slot of the inner tube, the outer tube having its bottom end in contact with the side projection of the inner controller, the control-close spring and the inner spring being uncompressed, the control-open spring being compressed, and the inner wire being released; thereby closing the frame around the shaft, the receiver making contact with the middle runner thereby stably closing the umbrella.