Folding frame for use in umbrella or the like

Details Folding frame for use in umbrella or the like Folding frame for use in umbrella or the like

1990-03-06

1991-09-10

Raduazo, Henry E.

Tent, canopy, umbrella, or cane

Umbrella

Retainers

135 39, A45B 2912

Patent

active

050465180

ABSTRACT:
A folding frame for use in umbrella or the like includes a plurality of arcuate stretcher ribs each pivotally secured between a lower runner reciprocatively held on a central shaft of the umbrella and a top rib pivotally secured to an upper notch of the shaft so that when extending the ribs and an umbrella cloth secured to the top ribs for opening the umbrella, the arcuate stretcher ribs may resiliently retain the top ribs and the umbrella cloth without the aid of a spring catch for saving production cost and for simplifying a folding or extending operation of the umbrella.

REFERENCES:
patent: 833724 (1906-10-01), Abbott
patent: 1056786 (1913-03-01), Freud
patent: 1236299 (1917-08-01), Hart
patent: 1749363 (1930-03-01), Venner
patent: 1843961 (1932-02-01), Stone
patent: 2047711 (1936-07-01), Siers
patent: 2816560 (1957-12-01), Wuster
patent: 3643673 (1972-02-01), Weber

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