Patent ID: 7311110

Claim:
An automatic close umbrella comprising: a telescopic multi-sectional central pole ( 10 ), including an upper central pole, a plurality of intermediate central poles, and a handle central pole disposed at a lower end of the multi-section central pole, each central pole having a hook device ( 90 ) for placing each two central poles in position; an upper rib collector ( 20 ) secured upon an upper end of the multi-sectional central pole ( 10 ); an elastic key ( 22 ) being disposed in the upper rib collector ( 20 ); the key ( 22 ) being connected with one end of a wire ( 51 ), another end of the wire ( 51 ) being extended and then entering into the multi-sectional central pole ( 10 ) and then being connected with a tenon ( 54 ) in the handle central pole; a first elastomer ( 56 ) disposed in the multi-section central pole ( 10 ) for retracting the central pole ( 10 ); one end of the first elastomer ( 56 ) being secured to the upper rib collector ( 20 ); and another end of the first elastomer ( 56 ) being secured to a lower end of the handle central pole ( 14 ); a second elastomer ( 57 ) having an end connected with a lower end of the tenon ( 54 ) and having another end connected with the handle central pole ( 14 ); a lower rib collector ( 30 ) movable along the multi-section central pole ( 10 ); a buckle unit ( 33 ) being disposed in the lower rib collector ( 30 ) which can be pressed by the elastic key ( 22 ) for operatively fitting and releasing the lower rib collector on the upper end of the upper central pole; a third elastomer ( 70 ) disposed on an outer circle of the upper central pole ( 11 ) and retractable between the upper rib collector ( 20 ) and lower rib collector ( 30 ); a handle ( 40 ) secured to a lower end of the handle central pole ( 14 ); a control device ( 50 ) disposed in the handle and being buckled with the tenon ( 54 ); an umbrella stand ( 60 ) formed by a plurality of hinged ribs ( 61 ); and a canopy ( 62 ) arranged on the hinged ribs ( 61 ); wherein each hook device ( 90 ) is an U-type ring ( 91 ) having an opening at a ring section and is disposed along a lower end of the central pole; the opening have inverted flanges ( 98 ) on both sides which insert into two corresponding slits ( 116 ) of the central pole; the U-type ring ( 91 ) has an elastic buckle ( 92 ); an upper end of the elastic buckle ( 92 ) has an impact portion ( 96 ) with a buckling hook ( 97 ); each central pole has a buckle hole; and the buckling hook ( 97 ) passes through buckling holes of two central poles so as to combine the two central poles.