Anti-turning umbrella frame
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United States of America Patent
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Dec 19, 2017
Issued Date -
N/A
app pub date -
Mar 3, 2017
filing date -
Mar 3, 2017
priority date (Note) -
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Abstract
An anti-turning umbrella frame is revealed. The anti-turning umbrella frame includes a plurality of inner main ribs, a plurality of inner connecting ribs, a plurality of middle main ribs, and a plurality of stretchers. An outer end of the inner main rib is riveted to an inner end of the middle main rib to form a first rivet point. The anti-turning umbrella frame features on that a positioning portion is disposed on an inner side of the first rivet point of the inner main rib while a locking portion corresponding to the positioning portion is arranged at or close to the outer end of the inner connecting rib. The locking portion is locked with the positioning portion while the umbrella frame is opened. Thereby the inner main rib and the middle main rib are connected to form a rigid body for preventing the middle main rib from turning over.
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