×

Multiple-fold automatic umbrella with simplified control means

  • US 5,505,222 A
  • Filed: 08/07/1995
  • Issued: 04/09/1996
  • Est. Priority Date: 08/07/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. An automatic umbrella comprising:

  • a central shaft means including;

    an inner tube, a grip secured with the inner tube, a middle tube slidably held on an outer and upper side of the inner tube, an outer tube slidably held on an outer and upper side of the middle tube, an upper notch secured on a top portion of the outer tube, and a central sleeve set having an inner and outer sleeve section telescopically held within said inner, middle and outer tubes;

    a rib assembly including a plurality of ribs pivotally connected with one another and pivotally secured between the upper notch and a lower runner slidably held on said central shaft means;

    an opening spring for opening an umbrella retained in said central shaft means and slidably disposed about the central sleeve set;

    a plurality of closing springs respectively secured on said rib assembly for operatively closing an umbrella from an opened state by an elastic energy stored when opening the umbrella; and

    a control means including;

    a push button resiliently held in the grip, an upper latch slidably held in a slotted plate perpendicularly protruding from a middle button portion of the push button from a first side of the central shaft means towards a second side of the shaft means and operatively depressed by the push button for opening the umbrella, a closing controller having a lower latch resiliently held in the grip and operatively depressible by the push button for inwardly pushing a locking head, which is secured with a drag rod coupled to a drag rope which is linked through the lower runner to an upper portion of the outer tube, for disengaging the locking head from a detent protrusion formed in a lower portion of the inner tube, thereby allowing each said closing spring to be restored to release a pre-stored elastic energy for closing the umbrella from an opened state, with the lower latch resiliently secured to an anti-false operation safety means which is lowered by the outer and middle tubes when closing the umbrella to prevent a false depression of the closing controller as depressed by the push button.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×