Importance

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Abstract

The present invention relates to a middle disk of sunshade umbrellas, which comprises a first and a second end part which are connected with each other. The first end part is an insertion portion for a short rib and the insertion portion for a short rib is provided with fixing holes for a short rib. The second end part has the first and the second clamp arm which are disposed opposite to each other. The first and the second clamp arm have a first and a second boss respectively and the first and the second boss are disposed opposite to each other. Preferably, the fixing holes for a short rib of which the number is not less than two are disposed at intervals along the length of the insertion portion for a short rib. The first and the second clamp arm are both in curved or corner shape. The middle disk of sunshade umbrellas is composed of a first and a second part. The first part comprises a first and a second end which are connected with each other and the second end has the first clamp arm. The second part comprises a third and a fourth end and the fourth end has the second clamp arm. The first and the third end contact with each other to form the insertion portion for a short rib. The present invention is ingeniously and uniquely designed, concise in structure, simple to assemble, artistic in appearance and is appropriate to be promoted on a large scale.

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First Claim