Combined suitcase and combining unit thereof

Abstract

A suitcase of the present invention includes first and second case shells disposed opposite to each other, and a combining unit disposed on two sides of the first and second case shells. The first case shell has a first annular rim, and the second case shell has a second annular rim. The combining unit includes a first seamless annular member, a second seamless annular member, a first zipper unit and a second zipper unit. The first and second seamless annular members are detachably fastened to the first and second annular rims respectively. An end of the first and second zipper units are connected with the first and second seamless annular members respectively, and the two zipper units are capable of being meshed with each other. Through the above-described configuration design, the suitcase is convenient for the replacement of the combining unit thereof.

What is claimed is: 
     
         1 . A combined suitcase comprising:
 a first case shell having a first shell wall, and a first accommodating space and a first annular rim, which are defined by the first shell wall;   a second case shell having a second shell wall, and a second accommodating space and a second annular rim, which are defined by the second shell wall; and   a combining unit comprising a first seamless annular member, a second seamless annular member, a first zipper unit and a second zipper unit, the first zipper unit having a first free end and a first zipper end, the first free end being connected with an end of the first seamless annular member, the second zipper unit having a second free end and a second zipper end, the second free end being connected with an end of the second seamless annular member, the first zipper end and the second zipper end being capable of being meshed with each other, another end of the first seamless annular member being detachably fastened to the first annular rim of the first case shell, another end of the second seamless annular member being detachably fastened to the second annular rim of the second case shell.   
     
     
         2 . The combined suitcase as claimed in  claim 1 , wherein the first seamless annular member is provided with a first embedding portion; the second seamless annular member is provided with a second embedding portion; the first annular rim of the first case shell is embedded in the first embedding portion; the second annular rim of the second case shell is embedded in the second embedding portion. 
     
     
         3 . The combined suitcase as claimed in  claim 2 , wherein the first embedding portion completely surrounds the first annular rim, and the second embedding portion completely surrounds the second annular rim. 
     
     
         4 . The combined suitcase as claimed in  claim 2 , wherein the first embedding portion and the second embedding portion both have an outer wall, an inner wall and an inserting groove defined between the outer wall and the inner wall; the inner walls of the first embedding portion and the second embedding portion are provided with a plurality of notches, and inner surfaces of the outer walls of the first embedding portion and the second embedding portion are provided with a plurality of positioning columns; the positioning columns are arranged correspondingly to the notches respectively; the first case shell is provided with a plurality of positioning holes; each of the positioning columns protrudes toward corresponding one of the notches and passes through corresponding one of the positioning holes. 
     
     
         5 . The combined suitcase as claimed in  claim 4 , wherein each of the positioning columns is provided with a threaded hole. 
     
     
         6 . The combined suitcase as claimed in  claim 1 , wherein the first seamless annular member has a first embedding portion and a first connecting band; the second seamless annular member has a second embedding portion and a second connecting band; the first embedding portion is located adjacent to the first connecting band; the second embedding portion is located adjacent to the second connecting band; the first free end of the first zipper unit is connected with the first connecting band; the second free end of the second zipper unit is connected with the second connecting band. 
     
     
         7 . The combined suitcase as claimed in  claim 6 , wherein the combining unit further comprises a third zipper unit and a fourth zipper unit; the third zipper unit is connected with the first connecting band, and the first zipper unit and the third zipper unit are located on two opposite sides of the first connecting band respectively; the fourth zipper unit is connected with the second connecting band, and the second zipper unit and the fourth zipper unit are located on two opposite sides of the second connecting band respectively. 
     
     
         8 . A combining unit comprising a first seamless annular member, a second seamless annular member, a first zipper unit and a second zipper unit, the first seamless annular member being located adjacent to the second seamless annular member and a slit being provided between the first seamless annular member and the second seamless annular member, the first zipper unit having a first free end and a first zipper end, the first free end being connected with an end of the first seamless annular member, the second zipper unit having a second free end and a second zipper end, the second free end being connected with an end of the second seamless annular member, the first zipper end and the second zipper end being capable of being meshed with each other, the first zipper end and the second zipper end being located correspondingly to the slit. 
     
     
         9 . The combining unit as claimed in  claim 8 , wherein the first seamless annular member has a first embedding portion and a first connecting band; the second seamless annular member has a second embedding portion and a second connecting band; the first embedding portion is located adjacent to the first connecting band; the second embedding portion is located adjacent to the second connecting band; the first free end of the first zipper unit and the second free end of the second zipper unit are connected with the first connecting band and the second connecting band respectively; the first embedding portion and the second embedding portion both have an outer wall, an inner wall and an inserting groove defined between the outer wall and the inner wall. 
     
     
         10 . The combining unit as claimed in  claim 9 , wherein the inner walls of the first embedding portion and the second embedding portion are both provided with a plurality of notches; inner surfaces of the outer walls of the first embedding portion and the second embedding portion are provided with a plurality of positioning columns; the positioning columns are arranged correspondingly to the notches respectively.