Abstract: An multiple-fold automatic umbrella includes a telescopic central shaft which constitutes a plurality of movable and overlapping tubes, a rib assembly, a grip, a control means, an extending spring and a plurality of retracting springs. Pressing the control means may trigger an umbrella opening means to stretch the extending spring for extending the overlapping tubes to open the umbrella or to close the umbrella through the retracting springs. The central shaft has an inner block and a rope guide disposed at the tope end to replace conventional rollers. The inner connection rib in the rib assembly is made of metallic wire for increasing the space to install retracting springs, diminishing the retracted volume of an umbrella, and reducing production cost.

Abstract: A multiple-fold automatic umbrella includes a lower runner of the umbrella ribs having a rope guiding member longitudinally formed on the runner provided with two rope grooves in two opposite sides of the rope guiding member for an easy winding of the rope on a roller rotatably mounted on the runner; a coupling spring compressibly retained between a middle shaft and an inner block adjacent to the upper notch of the umbrella ribs; at least an engaging hole formed in a lower portion of the upper shaft having a convex portion curved outwardly from the upper shaft and positioned below the engaging hole for stably engaging a wedge portion of the control device when folding the umbrella; and a resilient rib slidably coupled by a coupling ring to the middle rib and is made to prevent dogging with the coupling ring when the umbrella ribs are bent upwardly by a strong upward wind force.

Abstract: An automatic umbrella includes a closing controller formed as a pushing rod pivotally connected on a push button of a control device for disengaging a locking head of the rope for closing the umbrella from its opening state upon depression of the push button, with the pushing rod being biased as downwardly thrusted by a middle tubular shaft when folding the umbrella for preventing an unexpected closing operation after opening the umbrella. The rope of the umbrella control device has an integrally formed roller holder for pivotally securing a roller on the holder for guiding the rope, with the integrally formed roller holder embedded in a lower runner of the rib assembly for reducing the assembly cost.

Abstract: An automatic umbrella with multiple folds particularly of triple folds includes: a central shaft device having an upper, a middle, and a lower tubular shaft telescopically engageable with one another and having a grip formed on a lower portion of the central shaft device, a controller formed in the grip for controlling an opening or closing of the umbrella, a rib assembly pivotally secured to the central shaft device for supporting an umbrella cloth on the rib assembly, an extending spring retained within the central shaft device for extending the shaft and the umbrella when opening the umbrella, and a plurality of retraction restoring springs secured on the rib assembly for retracting the rib assembly for closing the umbrella, in which the extending spring is jacketed on an upper sleeve fixed in the upper tubular shaft and jacketed in a middle sleeve secured on the middle tubular shaft of the central shaft device so as to prevent any frictional contacting of the coiled extending spring with an inside wall of

Abstract: An automatic umbrella includes a resetting device slidably held on a grip of the umbrella which can be grasped by a user's hand for resetting or compressing a tensioning spring provided in a central shaft of the umbrella for automatically closing the umbrella so that a resetting operation for storing an elastic energy of the tensioning spring can be operated ergonomically.

Abstract: An automatic umbrella includes: a central shaft, a plurality of ribs secured with an umbrella cloth and pivotally secured to the central shaft, an umbrella-opening spring, an umbrella-closing spring, and a control device having a resilient retainer slidably held within an elongate slot formed in the central shaft, whereby upon an acting of a wind pressure on the umbrella cloth to lower the umbrella ribs and the resilient retainer, the elongate slot formed in the central shaft provides a buffer for allowing a downward movement of the resilient retainer and a folding of the umbrella ribs to temporarily reduce a wind-catching area of the umbrella cloth to decrease a total wind force acting on the umbrella for a lighter holding of the umbrella especially under a strong wind.

Abstract: An automatic umbrella includes: a central shaft having a grip formed on a lower portion of the central shaft and a controller formed in the grip for controlling an opening or closing of the umbrella, a rib assembly pivotally secured to the central shaft for supporting an umbrella cloth on the rib assembly, an extending spring retained within the central shaft for extending the shaft and the umbrella when opening the umbrella, and a plurality of retraction restoring springs secured on the rib assembly for retracting the rib assembly for closing the umbrella, in which the extending spring is jacketed on an inner sleeve fixed in an upper tubular shaft of the central shaft so as to prevent any frictional contacting of the coiled extending spring with an inside wall of the central shaft for noise prevention and for a smooth opening and closing operation of the umbrella.

Abstract: An umbrella includes: a central shaft having a lower tube secured on a grip and an upper tube telescopically mounted on the lower tube, a plurality of umbrella ribs pivotally secured to the central shaft for securing an umbrella cloth thereon, a plurality of rib restoring springs respectively secured on the ribs for operatively automatically closing the umbrella, which is previously opened to tension the rib restoring springs for storing their restoring spring energy, a control device having a push button transversely slidably held in a grip and a closing actuator vertically slidably held in the lower tube having a pulling rod linked to a resilient latch for operatively retracting the resilient latch for uncoupling the upper tube from the lower tube when closing the umbrella, and a rope secured between the lower tube and a lower runner of the umbrella ribs by slidably winding the rope in an upper portion of the upper tube to be operatively tensioned on the rope when opening the umbrella to have a tendency for