| 摘要 |
An improved joint mechanism for an umbrella which has a first connecting device which includes a shaft member which has a channel through its length and is capable of sleeving onto a rib member and a saddle portion with a U-shaped configuration disposed at the middle portion of the shaft member. A second connecting device defines a connecting tube suitable for fixing a tip portion of a stretcher and a yoke portion having a supporting beam which can be rotatably received by the saddle portion of the first connecting device.
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