Luggage capable of being opened in all directions

Abstract

A luggage includes a first case, a second case, and a connecting portion. The connecting portion has a pair of teeth rows connected to the first case and the second case respectively and two sliders engage the teeth rows. The sliders are moved to make the teeth rows mesh together or separate. When the sliders are moved to separate the teeth rows and they are moved to the same side of the second case, the meshed section of the teeth rows becomes a hinge of the second case for opening and closing the luggage. As a result, the second case is capable of being opened in all directions.

What is claimed is: 
     
         1 . A luggage, comprising:
 a first case having a first board and a first rim portion connected to an edge of the first board to form a room within the first board and the first rim portion and an opening at a side opposite to the first board;   a second case having a second board and a second rim portion connected to an edge of the second board; and   a connecting device having a pair of teeth rows and two sliders, wherein the teeth rows are connected to the first rim portion of the first case and the second rim portion of the second case, and the sliders engage the teeth rows;   whereby the sliders are moved to mesh the teeth rows together or separate the teeth rows, and when the sliders are moved to separate the teeth rows and the sliders are move to the same side of the second case, the teeth rows have a section still meshed together to form a hinge for opening and closing the second case.   
     
     
         2 . The luggage of  claim 1 , wherein the first case is a single element, and the first rim portion has a first top side, a first bottom side opposite to the first top side, and two first lateral sides between the first top side and the first bottom side. 
     
     
         3 . The luggage of  claim 2 , wherein the first rim portion further includes a flange portion projected from an edge of the first bottom side toward the first top side, and the flange portion has opposite sides connected to the first lateral sides respectively. 
     
     
         4 . The luggage of  claim 2 , further comprising a plurality of wheel assemblies connected to the first bottom side of the first rim portion of the first case. 
     
     
         5 . The luggage of  claim 1 , further comprising an expanding mechanism, wherein the first rim portion of the first case includes a fixed portion connected to the first board and a movable portion connected to the teeth row of the connecting device; the expanding mechanism is connected to the fixed portion and the movable portion to expand and narrow the room of the first case. 
     
     
         6 . The luggage of  claim 5 , wherein the expanding mechanism includes an extended layer and a zipper; the extended layer has opposite sides connected to the fixed portion and the movable portion, and the zipper has a pair of teeth rows connected to the fixed portion and the movable portion respectively. 
     
     
         7 . The luggage of  claim 1 , wherein the second case is a single element, and the second rim portion has a second top side, and two second lateral sides at opposite sides of the second top side.