| 摘要 |
PURPOSE: An umbrella is provided to improve convenience by making a vinyl cover for preventing dripping rainwater. CONSTITUTION: An umbrella comprises an umbrella rib fixture, umbrella inner ribs, and a main fixation pin. If an umbrella handle(10) rotates, the umbrella ribs fixture(30) rotates along a spiral groove placed in the inner wall of an umbrella cover(20). The umbrella inner ribs(32) enters the umbrella cover while rotating. A main spring(33) is fixed to the main fixation pin(11). An umbrella cover lid(13) prevents rainwater from falling. |
