Rib assembly for multi-foldable umbrella
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United States of America Patent
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-
Dec 28, 2004
Grant Date -
Jul 1, 2004
app pub date -
Dec 30, 2002
filing date -
Dec 27, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The rib assembly for multi-foldable umbrella includes an inner rib, a middle rib, an outer rib and a secondary rib. Wherein, the secondary rib and the front strut are solid shafts and the pivot joint of the secondary rib and the inner rib is not necessitated to be flat in shape. Therefore the supporting strength of the secondary rib and the front strut against bending are increased, and the volume thereof is also effectively reduced for further significantly decreasing the volume of the collapsed umbrella as a whole, thereby bringing better convenience for carrying.
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