Patent ID: 7448399

Claim:
An umbrella comprising: an umbrella support; a plurality of umbrella ribs that are installed on an upper portion of the umbrella support and that are capable of being folded; a plurality of support ribs respectively supporting the umbrella ribs; a slider to which an end of each of the support ribs is hingedly coupled and which slides along the umbrella support to fold or unfold the umbrella ribs and the support ribs; a canopy giving a user shelter from rays of the sun, rain, or snow, wherein the canopy is divided into an upper canopy installed on upper portions of the umbrella ribs and a lower canopy installed on lower portions of the umbrella ribs, and a space is formed between the upper and lower canopies when the umbrella is unfolded; and space maintaining portions fixedly inserted around the respective umbrella ribs, wherein the lower canopy is fixed on bottom portions of the space maintaining portions, wherein the upper canopy is located on top surfaces of the umbrella ribs so that an upper portion of the lower canopy is spaced apart from a lower portion of the upper canopy in a substantially vertical direction, thereby defining the space, and wherein each of the space maintaining portions is gradually widened as it goes from a lower portion of the corresponding umbrella rib toward an upper portion of the corresponding umbrella rib.