Retractable neck pillow

Abstract

A retractable neck pillow has multiple retractable elements sequentially connected along a retracting direction. Each retractable element is made of a flexible material, is tubular, and is capable of retracting along the retracting direction. Two ends of the retractable neck pillow can be pushed by a user to shorten for storage. The retractable neck pillow is convenient in usage and is easy to be stored.

What is claimed is: 
     
         1 . A retractable neck pillow comprising:
 multiple retractable elements sequentially connected along a retracting direction; and   each retractable element made of a flexible material, being tubular, and being capable of retracting along the retracting direction.   
     
     
         2 . The retractable neck pillow as claimed in  claim 1 , wherein
 each retractable element has a first supporting section, a folding section, and a second supporting section being annular and sequentially connected to one another; and   respective outer diameters of the first supporting section, the folding section, and the second supporting section of each retractable element gradually decrease;   when each retractable element retracts, the first supporting section, the folding section, and the second supporting section of the retractable element fold in a direction perpendicular to the retracting direction, and the folding section is disposed between the first supporting section and the second supporting section.   
     
     
         3 . The retractable neck pillow as claimed in  claim 2 , wherein
 each retractable element has
 at least one groove being annular; and 
 at least one supporting element being annular and respectively received in the at least one groove. 
   
     
     
         4 . The retractable neck pillow as claimed in  claim 3 , wherein
 the at least one groove of each retractable element includes a groove formed in an interior surface of the first supporting section of the retractable element.   
     
     
         5 . The retractable neck pillow as claimed in  claim 1 , wherein
 each retractable element has a first supporting section, a bending section, and a second supporting section being annular and sequentially connected to one another;   the first supporting section and the second supporting section of each retractable element are yieldably connected to each other via the bending section;   when each retractable element retracts, the first supporting section and the second supporting section fold in the retracting direction.   
     
     
         6 . The retractable neck pillow as claimed in  claim 1 , wherein the multiple retractable elements are distinguished into multiple first retractable elements and multiple second retractable elements. 
     
     
         7 . The retractable neck pillow as claimed in  claim 6 , wherein
 each first retractable element has a first supporting section, a folding section, and a second supporting section being annular and sequentially connected to one another; and   respective outer diameters of the first supporting section, the folding section, and the second supporting section of each first retractable element gradually decrease;   each second retractable element has a first supporting section, a bending section, and a second supporting section being annular and sequentially connected to one another;   the first supporting section and the second supporting section of each second retractable element are yieldably connected to each other via the bending section of the second retractable element;   when each first retractable element retracts, the first supporting section, the folding section, and the second supporting section of the first retractable element fold in a direction perpendicular to the retracting direction, and the folding section is disposed between the first supporting section and the second supporting section; and   when each second retractable element retracts, the first supporting section and the second supporting section of the second retractable element fold in the retracting direction.   
     
     
         8 . The retractable neck pillow as claimed in  claim 7 , wherein
 each first retractable element has
 at least one groove being annular; and 
 at least one supporting element being annular and respectively received in the at least one groove. 
   
     
     
         9 . The retractable neck pillow as claimed in  claim 8 , wherein
 the multiple first retractable elements include three first retractable elements;   the multiple second retractable elements include two second retractable elements; and   each second retractable element is disposed between two adjacent first retractable elements.   
     
     
         10 . The retractable neck pillow as claimed in  claim 9 , wherein
 the at least one groove of each first retractable element includes a groove formed in an interior surface of the first supporting section of the first retractable element.