Umbrella with ground engagement structure

Abstract

An umbrella includes: a pole part having a first end, a second end opposite the first end, and a pole axis extending through the first end and the second end; an umbrella part at the first end; and a ground engagement structure extending from the second end for engaging a ground. The ground engagement structure includes: a material shifting structure extending radially relative to the pole part; and a material receiving groove adjacent to the material shifting structure.

What is claimed is: 
     
         1 . An umbrella comprising:
 a pole part having a first end, a second end opposite the first end, and a pole axis extending through the first end and the second end;   an umbrella part at the first end; and   a ground engagement structure extending from the second end for engaging a ground, comprising:
 a material shifting structure extending radially relative to the pole part; 
 a material receiving groove adjacent to the material shifting structure; and 
 a pointed tip configured to engage the ground. 
   
     
     
         2 . The umbrella of  claim 1 , wherein the material shifting structure is a threaded structure extending radially relative to the pole part, and the material receiving groove is a channel extending between threads of the threaded structure. 
     
     
         3 . The umbrella of  claim 2 , wherein widths of the threads increase towards the pole part from an engagement end of the ground engagement structure. 
     
     
         4 . The umbrella of  claim 2 , wherein widths of the threads are constant along a length of the material shifting structure. 
     
     
         5 . The umbrella of  claim 1 , wherein the material shifting structure comprises a plurality of arms that extend radially relative to the pole part, and the arms are spaced apart from one another by the material receiving groove. 
     
     
         6 . The umbrella of  claim 5 , wherein the arms are bent or curved. 
     
     
         7 . The umbrella of  claim 1 , wherein the pole part comprises a first pole part including the umbrella part and a second pole part including the ground engagement structure. 
     
     
         8 . The umbrella of  claim 7 , wherein the first pole part is slidably connected with the second pole part. 
     
     
         9 . The umbrella of  claim 8 , wherein:
 the first pole part comprises the first end of the pole part, a third end opposite the first end, and an elongated body extending between the first and third ends;   the second pole part comprises the second end of the pole part, a fourth end opposite the second end, and a tubular body extending between the second and fourth ends; and   the third end is insertable into the fourth end such that at least a portion of the first pole part is received in the second pole part.   
     
     
         10 . The umbrella of  claim 1 , further comprising a handle part connected to the pole part. 
     
     
         11 . The umbrella of  claim 10 , wherein the handle part is hingedly connected to the pole part. 
     
     
         12 . An umbrella comprising:
 a pole part having a first end, a second end opposite the first end, and a pole axis extending through the first end and the second end, the pole part comprising:
 a first pole part comprising the first end, a third end opposite the first end, and an elongated body extending between the first and third ends; and 
 a second pole part comprising the second end, a fourth end opposite the second end, and a tubular body extending between the second and fourth ends; 
   an umbrella part at the first end; and   a ground engagement structure extending from the second end for engaging a ground, comprising:
 a material shifting structure extending radially relative to the pole part; 
 a material receiving groove adjacent to the material shifting structure; and 
 a pointed tip configured to engage the ground, 
   wherein the third end of the first pole part is insertable into the tubular body via the fourth end of the second pole part.   
     
     
         13 . The umbrella of  claim 12 , wherein the material shifting structure is a threaded structure extending radially relative to the pole part, and the material receiving groove is a channel extending between threads of the threaded structure. 
     
     
         14 . The umbrella of  claim 13 , wherein widths of the threads increase towards the pole part from an engagement end of the ground engagement structure. 
     
     
         15 . The umbrella of  claim 13 , wherein widths of the threads are constant along a length of the material shifting structure. 
     
     
         16 . The umbrella of  claim 12 , wherein the material shifting structure comprises a plurality of arms that extend radially relative to the pole part, and the arms are spaced apart from one another by the material receiving groove. 
     
     
         17 . The umbrella of  claim 16 , wherein the arms are bent or curved.