Structure of the mobile luggage case

Abstract

The invention relates to an improved structure of mobile luggage case, comprising the case body, wheels, extension handle mechanism and side rollers, which mainly incorporates a plurality of side rollers on one side of the case body. While in waiting, the mobile luggage case can be couched horizontally on the ground. The case body can also be towed along. While in this way of moving, the side rollers roll on the ground with the least friction against the surface of the ground, making the towing less energy-consuming.

What is claimed is:  
     
         1 . An improved structure of a mobile luggage case, comprising: 
 a case body;    at least two wheels mounted at a bottom side of said case body;    an extension handle mechanism installed on a back side of said case body; and    a plurality of side rollers mounted on one side of said case body.    
     
     
         2 . An improved structure of a mobile luggage case of  claim 1 , wherein said plurality of side rollers pivotally connected to a left or right side of said case body.  
     
     
         3 . An improved structure of a mobile luggage case of  claim 1 , wherein said case body having corners wrapped with protective corners for receiving said side rollers.  
     
     
         4 . An improved structure of a mobile luggage case of  claim 1 , wherein said bottom of said case body provided with a bottom leg.  
     
     
         5 . An improved structure of a mobile luggage case of  claim 1 , wherein said case body having the other side provided with a plurality of side legs.  
     
     
         6 . An improved structure of a mobile luggage case of  claim 1 , wherein said extension handle mechanism having a handle bar and two extension rods.