| 摘要 |
PURPOSE: Provided is an auto-unfolding parasol which contains a position detection sensor to control unfolding operation of a roof automatically and a wind velocity sensor to unfold the roof automatically when wind is strong so that it protects the parasol in case of emergency. CONSTITUTION: The auto-unfolding parasol comprises the parts of: a pipe body(3) which includes a driving motor and an upper slide part(2); an internal pipe(6) which includes both guide rails(4) and cutting holes(5); a screw axis(7) which is connected to the driving motor by a connection tool and placed to a lower support plate(8) in a standing state; a ring-typed migration hole(10) which is inserted into the outer circumference side of the internal pipe; and a screw pipe which is formed by a connection stand within the migration hole as one.
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