Suitcase with pull rod unit

Abstract

A suitcase includes a case body, a support frame and a pull rod unit, wherein two rollers are connected to an underside of a rear side of the case body and the support frame reinforces the structural strength of the case body. The pull rod unit is connected to the rear side of the case body and extends through a rear plate of the case body and enters an interior of the case body. A lower end of the pull rod unit is connected to the support frame, thereby increasing the storage space.

1 . A suitcase comprising:
 a case body having two rollers connected to an underside of a rear side thereof and a support frame connected to the case body and supporting the case body, and   a pull rod unit connected to the rear side of the case body and extending through a rear plate of the case body and entering an interior of the case body, a lower end of the pull rod unit connected to the support frame.   
     
     
         2 . The suitcase as claimed in  claim 1 , wherein the support frame includes a reinforcement plate and a roller stand, the reinforcement plate fixed to the rear plate so as to reinforce a structural strength of the rear plate, the roller stand includes a horizontal wall, an upright wall extending from the horizontal wall and two reception portions which are connected to the horizontal wall and the upright wall, a lower end of the rear plate is connected to the upright wall and sandwiched between the reinforcement plate and the upright wall so that the roller stand is fixed to the underside of the rear side of the case body, the reception portions extend through the rear plate and the reinforcement plate and located in the interior of the case body, the pull rod unit includes two collapsible tubes, a handle and a bridge member, the handle is connected between the two collapsible tubes and the bridge member connected between mediate portions of the two collapsible tubes, the bridge member is connected to outside of the rear plate and the reinforcement plate by screws, the collapsible tubes extend through the rear plate and the reinforcement plate, and are inserted into and fixed to the reception portions in the case body. 
     
     
         3 . The suitcase as claimed in  claim 2 , wherein the rear plate includes two first through holes and the reinforcement plate includes two second through holes, the collapsible tubes extend through the first and second through holes. 
     
     
         4 . The suitcase as claimed in  claim 2 , wherein the rear plate includes two apertures defined in a lower edge thereof and the reinforcement plate includes two notches defined in a lower edge thereof, the two reception portions extend through the apertures and the notches. 
     
     
         5 . The suitcase as claimed in  claim 2 , wherein each collapsible tube is fixedly inserted into the reception portions by screws. 
     
     
         6 . The suitcase as claimed in  claim 2 , wherein the rollers are connected to two ends of the roller stand. 
     
     
         7 . The suitcase as claimed in  claim 1 , wherein the support frame is a rectangular frame and located in the case body, the support frame includes two sidewalls, a top end and a lower end connected between the two sidewalls, a first and second transverse bars are respectively connected between the two sidewalls, the support frame reinforces structural strength of a top, a bottom and two sides of the case body, the second transverse bar is further connected with the lower end of the support frame, the pull rod unit includes two collapsible tubes, a handle and a bridge member, the handle is connected between the two collapsible tubes and the bridge member connected between mediate portions of the two collapsible tubes, the bridge member is connected to outside of the rear plate and the first transverse bar by screws, the collapsible tubes extend through the rear plate and are fixed to the second transverse bar. 
     
     
         8 . The suitcase as claimed in  claim 7 , wherein the first transverse bar is located close to the top end of the support frame. 
     
     
         9 . The suitcase as claimed in  claim 7 , wherein the second transverse bar is connected to the lower end of the support frame. 
     
     
         10 . The suitcase as claimed in  claim 7 , wherein the rear plate includes two first through holes and the collapsible tube extend through the first through holes and are inserted into the case body. 
     
     
         11 . The suitcase as claimed in  claim 7 , wherein two respective lower ends of the collapsible tubes are fixed to the second transverse bar by screws. 
     
     
         12 . The suitcase as claimed in  claim 1 , wherein an outer plate is connected to the rear side of the case body and a space is defined between the outer plate and the rear side of the case body, the pull rod unit is located in the space and hidden by the outer plate. 
     
     
         13 . The suitcase as claimed in  claim 12 , wherein a flip is connected to the rear side of the case body and covers an opening of the space defined between the outer plate and the rear side of the case body, the flip has a zipper which connects the flip with the outer plate to close the opening of the space.