Patent ID: 9687053
Date: 2017-06-27
CPC Classifications: A45B

Claim:
1. An automatic umbrella comprising: an umbrella shaft which comprises a grip portion for allowing a user to grip, at one end according to a longitudinal direction; a plurality of main ribs pivotably coupled with the other end of the umbrella shaft and spaced apart along a circumferential direction of the umbrella shaft; an elevating body slidably installed at the umbrella shaft along the longitudinal direction; a plurality of sub ribs pivotably coupled between the main ribs and the elevating body; umbrella canvas coupled with the main ribs; and an operation unit which moves the elevating body to the other end of the umbrella shaft to unfold the umbrella shaft when the umbrella shaft tilts to locate the other end to be above the one end of the umbrella shaft and moves the elevating body to the one end of the umbrella shaft to fold the umbrella shaft when the umbrella shaft tilts to locate the one end to be above the other end of the umbrella shaft wherein the operation unit comprises: a weight portion which is installed at the umbrella shaft to be slidable along the longitudinal direction and has a weight to be moved along a direction in which the umbrella shaft tilts; and a driving portion moves the elevating body toward the one end of the umbrella shaft to fold the umbrella shaft when the weight portion becomes adjacent to the other end of the umbrella shaft and moves the elevating body toward the other end of the umbrella shaft when the weight portion is moved toward the one end of the umbrella shaft.