Multiple-fold automatic umbrella

摘要

An automatic umbrella includes: a central shaft, a rib assembly for securing an umbrella cloth thereon, an opening spring for resiliently opening the umbrella, a plurality of closing springs for resiliently closing the umbrella, and a control device for controlling the opening or closing of the umbrella by depressing an upper portion or a lower portion of a seesaw button of the control device, the central shaft having a plurality of telescopic tubes telescopically retractible with one another and the rib assembly having a plurality of ribs, which can be folded to greatly shorten a total length of a closed umbrella adapted for convenient carrying or storing purposes.