Patent ID: 6729340
Filing Date: 2004-05-04
Classification: A45B

Abstract:
A switch for folding and opening an umbrella automatically, comprising:an engaging tube having a receiving space at a center thereof; the receiving space being installed with a first spring and a second spring, and a buckle; one end of the engaging tube having a tube; a lateral side of the tube having a protrusion; two outer lateral sides of the engaging tube being formed with parallel lateral sides; a button for covering the engaging tube being exactly located upon the receiving space; a central post, a third spring, and a movable block being pivotally installed in a sliding groove at an inner surface of the button, wherein the movable block can slid on the central post freely; a sleeve being a hollow tube for receiving the engaging tube; a post being protruded from a lower end of the sleeve; an embedding hole being formed on the post at a connection to a wall of the sleeve; an outer surface of the post is formed with an embedding body; and a handle being inserted by the sleeve; and the handle having a blind hole being formed with an embedding seat for receiving and securing the embedding body of the sleeve to the handle.