Patent ID: 6216712
Filing Date: 2001-04-17
Classification: A45B

Abstract:
A safety umbrella comprising:a central shaft having an upper notch formed on a top portion of the shaft and a grip formed on a lower portion of the shaft;a ball retained in a lower portion of said shaft adjacent to the grip;a rib assembly having an umbrella cloth secured thereon and including a plurality of top ribs each pivotally secured to the upper notch, and a plurality of stretcher ribs each pivotally connected between each said top rib and a runner slidably held on said shaft, each said stretcher rib defining an acute angle between the stretcher rib and said shaft from said runner to said grip of the umbrella when opened, said runner engaging with said ball resiliently retained in said shaft when closing the umbrella; anda plurality of pulling ropes each connected between an outer portion of each said top rib and a collar disposed about and resiliently held on an upper portion of said shaft by a tension spring retained on a retainer fixed on the upper portion of said shaft; whereby upon opening of the umbrella, each said pulling rope will pull each said top rib inwardly towards said shaft to arcuately bend each said top rib to force upon each said stretcher rib centipetally towards the runner and the shaft for stably resiliently keeping the rib assembly and the umbrella cloth at an opening condition; andupon closing of the umbrella by lowering said runner, said runner will be engaged with said ball to be stably locked at a folded condition.