Travel bag having variable storage chamber

Abstract

The present invention relates to a travel bag having movable casters mounted on the underside thereof, one-step and two-step support rods and a movable handle insertedly mounted on the top thereof, comprising: an auxiliary housing disposed to a given height on the top portion of one side thereof in such a manner as to be slidingly coupled to slide surfaces 12 disposed at the inside thereof; and an auxiliary storage chamber formed at the inside of the auxiliary housing when the auxiliary housing is moved up along the slide surfaces.

What is claimed is: 
     
         1 . A travel bag having movable casters mounted on the underside thereof, one-step and two-step support rods and a movable handle insertedly mounted on the top thereof, the travel bag comprising:
 an auxiliary housing disposed to a given height on the top portion of one side thereof in such a manner as to be slidingly coupled to slide surfaces disposed at the inside thereof; and   an auxiliary storage chamber formed at the inside of the auxiliary housing when the auxiliary housing is moved up along the slide surfaces.   
     
     
         2 . The travel bag according to  claim 1 , wherein the auxiliary housing is integrally connected to the two-step support rods by means of hanging loops, so that when the two-step support rods are pulled up, the auxiliary housing is moved up together to form the auxiliary storage chamber at the interior thereof.