Umbrella with offset shaft

Abstract

An umbrella includes an umbrella cover and an umbrella frame supported the umbrella cover to form an umbrella body. The umbrella frame further includes a radiated cover frame mounted under the umbrella cover for supporting the umbrella cover thereof, and an offset shaft coupled at the center of the radiated cover frame to support the whole umbrella, wherein the radiated cover frame includes a runner and a plurality of stretchers, wherein the offset shaft comprises a first rigid rod, a second rigid rod, and a third rigid rod are connected together one after another to form the offset shaft that can adjust between a straight shape to an offset shape.

1 . An umbrella, comprising:
 an umbrella cover; and   an umbrella frame supported said umbrella cover to form an umbrella body, wherein said umbrella frame further comprises a radiated cover frame mounted under said umbrella cover for supporting said umbrella cover thereof, and an offset shaft coupled at a center of said radiated cover frame to support said umbrella with said offset shaft.   
     
     
         2 . The umbrella, as recited in  claim 1 , wherein said radiated cover frame further comprises a plurality of ribs each having two ends, wherein one of said ends of said respective rib is joined at the upper portion of said offset shaft, and the other of said ends of said respective rib is extended outwardly and downwardly to form a tip. 
     
     
         3 . The umbrella, as recited in  claim 2 , wherein said offset shaft comprises a first rigid rod, a second rigid rod, and a third rigid rod, wherein said three rigid rods are connected together subsequently one after another to form said offset shaft. 
     
     
         4 . The umbrella, as recited in  claim 3 , wherein said radiated cover frame further comprises a runner and a plurality of stretchers, wherein each of the stretchers has a first end and a second end, wherein said first end of each of said stretchers is pivotally jointed at said runner, and said second end of each of said stretchers is pivotally fastened to the middle of said respective rib. 
     
     
         5 . The umbrella, as recited in  claim 4 , wherein there is an angle θ between two adjacent said rigid rods, wherein said angle θ between said two adjacent rigid rods is adjustable. 
     
     
         6 . The umbrella with offset shaft, as recited in  claim 5 , wherein said angle θ is preferably 90°. 
     
     
         7 . The umbrella, as recited in  claim 5 , wherein said runner is mounted on said first rigid rod and is slidable along said first rigid rod of said offset shaft back and forth to open or close said umbrella with said offset shaft. 
     
     
         8 . The umbrella, as recited in  claim 6 , wherein said runner is mounted on said first rigid rod and slides along said first rigid rod of said offset shaft back and forth to open or close said umbrella with said offset shaft. 
     
     
         9 . The umbrella, as recited in  claim 5 , wherein a length of said second rigid rod should be at least equal to a radius R of said umbrella when completely opened. 
     
     
         10 . The umbrella, as recited in  claim 6 , wherein a length of said second rigid rod should be at least equal to a radius R of said umbrella when completely opened. 
     
     
         11 . The umbrella, as recited in  claim 7 , wherein a length of said second rigid rod should be at least equal to a radius R of said umbrella when completely opened. 
     
     
         12 . The umbrella, as recited in  claim 8 , wherein a length of said second rigid rod should be at least equal to a radius R of said umbrella when completely opened. 
     
     
         13 . The umbrella, as recited in  claim 12 , wherein said first rigid rod, said second rigid rod, and said third rigid rod are rotated with respect to each other so as to change a shape of said offset shaft. 
     
     
         14 . The umbrella, as recited in  claim 9 , wherein said runner comprises a C-shaped body and has a nick, wherein when said C-shaped runner is moved to slide upwardly along said first rigid rod to open said umbrella, said nick of said C-shaped runner allows said C-shaped body to pass through said second rigid rod to completely open said umbrella. 
     
     
         15 . The umbrella, as recited in  claim 10 , wherein said runner comprises a C-shaped body and has a nick, wherein when said C-shaped runner is moved to slide upwardly along said first rigid rod to open said umbrella, said nick of said C-shaped runner allows said C-shaped body to pass through said second rigid rod to completely open said umbrella. 
     
     
         16 . The umbrella, as recited in  claim 11 , wherein said runner comprises a C-shaped body and has a nick, wherein when said C-shaped runner is moved to slide upwardly along said first rigid rod to open said umbrella, said nick of said C-shaped runner allows said C-shaped body to pass through said second rigid rod to completely open said umbrella. 
     
     
         17 . The umbrella, as recited in  claim 13 , wherein said runner comprises a C-shaped body and has a nick, wherein when said C-shaped runner is moved to slide upwardly along said first rigid rod to open said umbrella, said nick of said C-shaped runner allows said C-shaped body to pass through said second rigid rod to completely open said umbrella. 
     
     
         18 . The umbrella, as recited in  claim 14 , wherein said offset shaft further comprises a soft elongated element rigidly connected to the lower end of said first rigid rod to allow said umbrella to be opened. 
     
     
         19 . The umbrella, as recited in  claim 15 , wherein said offset shaft further comprises a soft elongated element rigidly connected to the lower end of said first rigid rod to allow said umbrella to be opened. 
     
     
         20 . The umbrella, as recited in  claim 16 , wherein said offset shaft  12  further comprises a soft elongated element rigidly connected to a lower end of said first rigid rod to allow said umbrella with offset shaft to be opened easily. 
     
     
         21 . The umbrella, as recited in  claim 17 , wherein said offset shaft  12  further comprises a soft elongated element rigidly connected to a lower end of said first rigid rod to allow said umbrella with offset shaft to be opened easily.