Patent ID: 8215324
Filing Date: 2012-07-10
Classification: A45B

Abstract:
1. A control structure for an automatically folding and unfolding umbrella, said control structure being installed in a handle of said umbrella and fixedly joined to a bottom end of a first tube of a shaft of said umbrella, said control structure comprising: a main body whose upper and lower halves are hollow and a support base is configured in the middle; a control piece installed in said upper hollow space; a lever pivotally configured on said support base; an actuating piece configured above said lever, said actuating piece having two arms extended backward, a T-shaped positioning block being configured between said arms, said actuating piece further having a through opening in front of said positioning block and above a slant block, said opening having a slant inner surface corresponding to said slant block; and a one-way wheel installed inside said lower hollow space, said one-way wheel having circumferential ratchets and a wire groove where a safety string is wound; wherein, when said umbrella is closed, said lever is prepared to engage said ratchets in case some mishap occurs; and, when said umbrella is successfully closed, said actuating piece engages said lever so that said lever is moved away from said ratchets and that said umbrella could be smoothly opened subsequently.