1. Field of the Invention
The present invention relates to umbrellas capable of being folded or adjusted in a specific way, and more particularly, to an automatic inversely foldable umbrella stably operated when being folded or expanded.
2. Description of the Related Art
A conventional umbrella includes a shaft, a handle, and a canopy. The handle is disposed on one end of the shaft. When the umbrella is folded, the canopy contracts toward the handle. However, the conventional umbrella requires a relatively large space during the folding or expanding process. When the user needs to expand or fold the umbrella during a rainy day for getting into out getting out a vehicle, the door of the vehicle shall be opened to a large scope. As a result, the user usually gets his/her body wet.
For improving the inconvenience of the conventional umbrella, TW patent M514236 discloses an inversely foldable umbrella including a main shaft, a covering canopy, and a lining canopy. The main shaft is provided with opposite two ends, wherein one end is provided with a handle portion. When the inversely foldable umbrella is folded, the covering canopy and the lining canopy contract toward one end of the main shaft away from the handle portion. Therefore, the door of the vehicle is only needed to be slightly opened, such that the inversely foldable umbrella is able to be folded or expanded outside the vehicle. However, such inversely foldable umbrella does not achieve an automatic expanding function. As a result, the user needs to apply both of his/her hands for operating the umbrella. The solution for such issue is desired.