Trolley bag

Abstract

The present invention provides an improved trolley bag comprising a primary bag unit, a left bag unit, a right bag unit and collapsible bag units; wherein the collapsible bag units are provided between the primary bag unit and the left bag unit as well as between the primary bag unit and the right bag unit respectively in order to form one single trolley bag and such that the trolley bag is of a collapsible function for extending and collapsing thereof. As a result, the improved trolley bag of the present invention can be used for carrying conventional items under a collapsed configuration and can be advantageously used for carrying elongated items including such as golf clubs under an extended configuration. Accordingly, the practical applications and usefulness of the improved trolley bag of the present invention are increased and enhanced.

1 . An improved trolley bag, comprising:
 a primary bag unit, a left bag unit, a right bag unit and collapsible bag units;   wherein said collapsible bag units are provided between said primary bag unit and said left bag unit as well as between said primary bag unit and said right bag unit respectively in order to form said improved trolley bag integrally as one single bag and such that said improved trolley bag is of a collapsible function for extending and collapsing thereof.   
     
     
         2 . The improved trolley bag according to  claim 1 , wherein a top surface of said left bag unit and a bottom surface of said right bag unit comprise a locking ring respectively and said primary bad unit comprises locking buckles for correspondingly buckling onto said locking rings whereby when said improved trolley bag is collapsed with a decreased overall length, said left bag unit, said right bag unit and said primary bag unit are held to be attached to each other firmly. 
     
     
         3 . The improved trolley bag according to  claim 1 , wherein said primary bad unit comprises a supporting platform provided therein, and said supporting platform is attached an extendable frame with extendable left and right ends. 
     
     
         4 . An improved trolley bag, having a vertical form in a collapsed configuration, comprising:
 a primary bag unit, an upper board, a lower base and collapsible bag units;   wherein said collapsible bag units are provided between said primary bag unit and said upper board as well as between said primary bag unit and said lower base respectively in order to form said improved trolley bag integrally as one single bag and such that said improved trolley bag is of a collapsible function for extending and collapsing thereof.   
     
     
         5 . The improved trolley bag according to  claim 4 , wherein a top surface of said lower base and a bottom surface of said upper board comprise a locking ring respectively and said primary bad unit comprises locking buckles for correspondingly buckling onto said locking rings whereby when said improved trolley bag is collapsed with a decreased overall length, said lower base, said upper board and said primary bag unit are held to be attached to each other firmly. 
     
     
         6 . The improved trolley bag according to  claim 4 , wherein said primary bad unit comprises a supporting platform provided therein, and said supporting platform is attached an extendable frame with extendable upper and lower ends.