Umbrella frame

Details Umbrella frame Umbrella frame

1998-09-10

2000-05-16

Aubrey, Beth A.

Tent, canopy, umbrella, or cane

Umbrella

Ribs and stretchers

A45B 1910

Patent

active

060622423

ABSTRACT:
An improved umbrella frame comprises a stick having an upper sleeve which has an upper nest set on the topside thereof being installed on the stick. And below the upper sleeve, the stick is further installed a mid runner and a lower runner between which a spring is set. A pluralities of long ribs are radiated around the nest and each of which have a first end pivotally connected thereto. A plurality of short ribs are radiated around the mid runner and each of which have a firs end pivotally connected thereto, and a second end pivotally connected to the long ribs. Wherein, the short ribs are made of fiber material and are formed in a solid rectangular shape with the lateral edge being longer than the top and bottom edge.

REFERENCES:
patent: 5553634 (1996-09-01), Yang
patent: 5931175 (1999-08-01), Lin

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