Patent ID: 6810895
Filing Date: 2004-11-02
Classification: A45B

Abstract:
An umbrella comprising:a central shaft including an upper notch formed on a top of said shaft; a rib assembly including at least a top rib pivotally secured to the upper notch, and a stretcher rib pivotally connected to said top rib; a runner pivotally connected with said stretcher rib and slidably held on said central shaft; and a spring catch secured to a top portion of said central shaft adjacent to said upper notch on said shaft; said spring catch protruding downwardly from said upper notch to be operatively engaged with said runner when opening the umbrella; and said spring catch juxtapositioned to said shaft as positioned outside said shaft for preventing cutting of a catch slit in said shaft for preventing weakening of mechanical strength of said shaft; and said runner including: a cylinder having a central hole slidably engageable with the central shaft, a ferrule integrally formed on the cylinder for pivotally securing the stretcher rib thereon, a button slot transversely formed through the runner to be slidably engageable with a push button, an engaging shoulder portion formed on an inner portion of the button slot to be engaged with the spring catch when opening the umbrella, a pair of lug slots transversely formed in opposite side portions of the runner to be slidably engageable with a pair of lugs formed on opposite sides of the push button, and a guiding slot longitudinally formed in the cylinder and tapered downwardly to guide the spring catch downwardly inwardly to be engaged and locked with the engaging shoulder portion of the runner.