Abstract: A coupling structure of the upper notch and the ferrule on an umbrella or parasol is provided to improve upon the habitually used screw type. With a newly designed ring, the coupling of the ferrule with the upper notch can be easily accomplished by pressing once. This saves effort and time. Once they are coupled, they will not become loose, thus preventing the ferrule from falling-off. If the umbrella falls to the ground due to carelessness, the ferrule and upper notch are not easily damaged or broken.

Abstract: A component framework structure for a foldable umbrella avoids channeled frame parts so as to make its various auxiliary stretchers fold into an abreast position instead of overlapping. Various stretchers on both the left and right sides have flat and thin structures, while their head joints are in conjunction with an upper notch member of the umbrella hereby the joints are positioned under the bottom of the notch. The outside part of the joints thus do not protrude beyond the diameter of the upper notch, so that the tail part of the foldable umbrella, after it is folded up, becomes very slim with new practical effectiveness achieved in its carrying, packing and outer appearance.

Abstract: A locking device for an automatic opening umbrella having the function of an anti-missrelease and automatic locking device wherein a push button and a button seat are formed in conjunction with a spring element, whereby, by just pushing forward and depressing said button to unlock the locking device and thus continuously complete the action of automatically opening the umbrella. The push botton will automatically return to its original position in a locking up condition after the force against the button is released.