Patent Publication Number: US-6220260-B1

Title: Sunshade device

Description:
BACKGROUND OF THE INVENTION 
     The present invention relates to a sunshade device. More particularly, the present invention relates to a sunshade device which has a connection rod inserted in the ground or a tube. 
     Referring to FIG. 5, a conventional sunshade device has a solid shaft  21 , a gore  2  disposed on an upper end of the solid shaft  21 , and a lower end of the solid shaft  21  inserted in a tube  11  of a base seat  1 . However, the base seat  1  should not be placed on soft soil or uneven ground. The conventional sunshade device will fall down under a strong wind. 
     SUMMARY OF THE INVENTION 
     An object of the present invention is to provide a sunshade device which has a connection rod to be inserted in the ground. 
     Another object of the present invention is to provide a sunshade device which has a connection rod to be inserted in a tube of a base seat. 
     In accordance with a first preferred embodiment of the present invention, a sunshade device comprises a hollow shaft, a gore disposed on an upper end of the hollow shaft, and a lower end of the hollow shaft receiving a connection rod. The hollow shaft has two lower protrusions. The connection rod has an annular flange defining a first portion and a second portion. The first portion of the connection rod has a flat end and two generally L-shaped grooves. The second portion of the connection rod has a tip end and two generally L-shaped recesses. The second portion of the connection rod is inserted in the lower end of the hollow shaft. The lower protrusions of the hollow shaft are inserted in the generally L-shaped recesses of the second portion of the connection rod. 
     In accordance with a second preferred embodiment of the present invention, a sunshade device comprises a hollow shaft, a gore disposed on an upper end of the hollow shaft, and a lower end of the hollow shaft receiving a connection rod. The hollow shaft has two lower protrusions. The connection rod has an annular flange defining a first portion and a second portion. The first portion of the connection rod has a flat end and two generally L-shaped grooves. The second portion of the connection rod has a tip end and two generally L-shaped recesses. The first portion of the connection rod is inserted in the lower end of the hollow shaft. The lower protrusions of the hollow shaft are inserted in the generally L-shaped grooves of the first portion of the connection rod. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective assembly view of a sunshade device of a preferred embodiment in accordance with the present invention; 
     FIG. 2 is a sectional assembly view of a hollow shaft, a connection rod, a tube, and a base seat of a preferred embodiment in accordance with the present invention; 
     FIG. 3 is a perspective exploded view of a hollow shaft and a connection rod of a preferred embodiment in accordance with the present invention; 
     FIG. 4 is a sectional schematic view illustrating a tip end of a connection rod inserted in the ground; and 
     FIG. 5 is a perspective view of a conventional sunshade device of the prior art. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Referring to FIGS. 1 to  3 , a sunshade device comprises a hollow shaft  4 , a gore  5  disposed on an upper end of the hollow shaft  4 , and a lower end of the hollow shaft  4  receiving a connection rod  3 . 
     The hollow shaft  4  has two lower protrusions  41 . 
     The connection rod  3  has an annular flange  31  defining a first portion  32  and a second portion  33 . The first portion  32  of the connection rod  3  has a flat end  321  and two generally L-shaped grooves  322 . The second portion  33  of the connection rod  3  has a tip end  331  and two generally L-shaped recesses  332 . 
     Referring to FIGS. 1 and 2 again, the second portion  33  of the connection rod  3  is inserted in the lower end of the hollow shaft  4 . The lower protrusions  41  of the hollow shaft  4  are inserted in the generally L-shaped recesses  332  of the second portion  33  of the connection rod  3 . 
     The first portion  32  of the connection rod  3  is inserted in a tube  51  of a base seat  50 . 
     Referring to FIGS. 3 and 4, the first portion  32  of the connection rod  3  is inserted in the lower end of the hollow shaft  4 . The lower protrusions  41  of the hollow shaft  4  are inserted in the generally L-shaped grooves  322  of the first portion  32  of the connection rod  3 . 
     The tip end  331  of the second portion  33  of the connection rod  3  is inserted in the ground  6 . 
     The invention is not limited to the above embodiment but various modifications thereof may be made. Further, various changes in form and detail may be made without departing from the scope of the invention.