| 摘要 |
The present invention relates to an umbrella which is simple it structure and easily spread and folded. That is, the present invention relates to an umbrella including: a shank consisting of an outer tube having a lower end coupled with a handle and inner tube secured within the outer tube and which has a middle portion or an upper end with a stopper; an auxiliary rib fixing member and a main rib fixing member arranged on the top of the outer tube and of the inner tube, respectively; a rib assembly consisting of a plurality of auxiliary ribs and main ribs rotatably assembled to the auxiliary rib fixing member and the main rib fixing member; an operating slit extending in the vertical direction on the handle and opposed to the outer tube; an operating handle moving in a vertical direction along the outer surface of the outer tube; and which is assembled to the inner tube by a pin inserted through the operating slit; an operating button mounted on the handle such that the operating button is elastically supported by a spring, and which has a stopper protrusion inserted into the operating slit formed at the lower end of the outer tube; and a stopper hole formed below the operating handle at the position matched to an upper head center and a lower dead center where the inner tube elevates, and which is selectively coupled with the stopper protrusion of the operating button. The umbrella of the present invention has a simple structure, can be manufactured at a low cost, enables easy spreading and folding operations, and improves the durability and prevents breakdown. |
