Suitcase and Manufacturing Method Thereof

Abstract

A suitcase and a manufacturing method thereof are disclosed. An upper case shell and a lower case shell are obtained, and a flexible material is fixedly connected to the upper case shell and the lower case shell. When the suitcase is assembled, elastic parts are compressed to install two ends of rods on installation parts of the upper case shell and the lower case shell, and a resilience force from the elastic parts is applied to the rods to drive the upper case shell and the lower case shell to be away from each other, and the flexible material connected to the upper case shell and the lower case shell is driven by the upper case shell and the lower case shell to be tensioned.

What is claimed is: 
     
         1 . A suitcase, comprising an upper case shell and a lower case shell, wherein a case side face connected to the upper case shell and the lower case shell is arranged between the upper case shell and the lower case shell; the upper case shell and the lower case shell have installation parts allowing rods to be inserted therein; the case side face is made of a flexible material, the upper case shell and the lower case shell are connected through a plurality of rods, and elastic parts are arranged between the rods and the upper case shell or/and the lower case shell and are located on the installation parts; when no external force is applied to the elastic parts, a sum of a length of the elastic parts and a length of the rods is greater than the length between the upper case shell and the lower case shell, and the length of the rods is smaller than the length between the upper case shell and the lower case shell; when the suitcase is assembled, the elastic parts abut against the rods and the upper case shell or/and the lower case shell and apply a force to the rods to drive the upper case shell and the lower case shell away from each other; and after the suitcase is assembled, the rods are fixedly combined with the upper case shell or the lower case shell. 
     
     
         2 . The suitcase according to  claim 1 , wherein a side plate is arranged between every two adjacent rods, and the side plates are plastic parts or metal parts and are located on an inner side of the case side face. 
     
     
         3 . The suitcase according to  claim 2 , wherein two ends of each of the side plates are respectively disposed around the two adjacent rods. 
     
     
         4 . The suitcase according to  claim 3 , wherein the side plates includes a rear side plate, a left side plate and a right side plate; the rods include a first rod, a second rod, a third rod and a fourth rod, and the first rod, the second rod, the third rod and the fourth rod are distributed at four points in a rectangular shape; one end of the left side plate is connected to the first rod, and another end of the left side plate and one end of the rear side plate are both arranged on the second rod; and one end of the right side plate is connected to the fourth rod, and another end of the right side plate and another end of the rear side plate are both arranged on the third rod. 
     
     
         5 . The suitcase according to  claim 4 , further comprising a handle arranged on the left side plate or/and the right side plate. 
     
     
         6 . The suitcase according to  claim 1 , wherein the upper case shell has a storage chamber, and an opening of the storage chamber is sealed with a sealing body. 
     
     
         7 . The suitcase according to  claim 1 , wherein a reinforcing part is arranged on a side, proximate a suitcase opening, of the upper case shell in a width direction of the suitcase. 
     
     
         8 . The suitcase according to  claim 7 , wherein the reinforcing part is a fifth rod which is fixedly connected to the upper case shell. 
     
     
         9 . The suitcase according to  claim 1 , wherein the rods of are of a hollow structure. 
     
     
         10 . The suitcase according to  claim 1 , wherein the rods are made of fiberglass, aluminum alloy, or plastic. 
     
     
         11 . The suitcase according to  claim 1 , wherein two concave parts are arranged below the lower case shell, and a bar which protrudes with respect to the concave parts is arranged between the two concave parts and extends in a width direction of the suitcase. 
     
     
         12 . The suitcase according to  claim 1 , wherein the flexible material is a textile fabric, a plastic film, or a combination thereof. 
     
     
         13 . The suitcase according to  claim 1 , wherein elastic parts are arranged on the installation parts of the lower case shell and abut against the rods, the rods are inserted into the installation parts of the upper case shell from a bottom of the upper case shell, screws are screwed into the rods from a top of the upper case shell, and the rods are combined with the upper case shell. 
     
     
         14 . The suitcase according to  claim 1 , wherein holes are formed in ends of the rods. 
     
     
         15 . A manufacturing method of a suitcase, comprising the following steps: obtaining an upper case shell and a lower case shell, and fixedly connecting a flexible material to the upper case shell and the lower case shell, wherein in terms of size selection, when no external force is applied to elastic parts, the sum of a length of elastic parts and a length of rods is greater than the length between the upper case shell and the lower case shell, and the length of the rods is less than the length spanning the upper case shell and the lower case shell; and when the suitcase is assembled, the elastic parts are compressed to install two ends of the rods on installation parts of the upper case shell and the lower case shell, and a resilience force from the elastic parts is applied to the rods to drive the upper case shell and the lower case shell to be away from each other, and the flexible material connected to the upper case shell and the lower case shell is driven by the upper case shell and the lower case shell to be placed in tension. 
     
     
         16 . The manufacturing method of a suitcase according to  claim 15 , wherein when the suitcase is assembled, elastic parts are arranged on the installation parts of the lower case shell, lower ends of the rods abut against the elastic parts, upper ends of the rods are inserted into the installation parts of the upper case shell, screws are screwed into holes in ends of the rods from a top of the upper case shell, and the rods are combined with the upper case shell; or installation positions of the elastic parts are exchanged with screw-in positions of the screws. 
     
     
         17 . The manufacturing method of a suitcase according to  claim 15 , wherein after the suitcase is assembled, the rods are fixedly combined with the upper case shell and/or the lower case shell.