Windproof umbrella

Details Windproof umbrella Windproof umbrella

1995-12-12

1997-01-28

Mai, Lanna

Tent, canopy, umbrella, or cane

Umbrella

Rib and stretcher joints

135 31, A45B 2500

Patent

active

055970044

ABSTRACT:
A Windproof umbrella comprising strut, stay, tension member, joint and spoke forming a five member-rib structure, the improvement resides in each strut being formed of a round resilient material; the inner and outer ends of each tension member being bent downwardly to form loops; each joint member having a common axis for pivotally connecting both the outer end of the tension member and the inner end of the spoke and providing with a continued curved portion extending inwardly from the common axis; so that when the umbrella frame is turned inside out the tension members are curved downwardly by virtue of the exended portion of the joint member under tension for urging the joint members upwardly when the slider is pulled downwardly on the shaft, thereby restoring the umbrella to its originally closed condition.

REFERENCES:
patent: 4007752 (1977-02-01), Weber
patent: 4884586 (1989-12-01), Szu et al.
patent: 5235998 (1993-08-01), Liu
patent: 5323801 (1994-06-01), Kuo
patent: 5435331 (1995-07-01), Okuda

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