Tie-rod luggage box

Abstract

A tie-rod luggage box, or travel suitcase, has a main box body, comprising of a front shell plate and a rear shell plate in an open or closed state. An L-shaped extensible tie-rod is set between the front and rear shell plates, adjacent to one flange of the front and rear shell plates. Said L-shaped extensible tie-rod at least comprises of a vertical extensible rod set extended vertically along the inner side of the main box body and a transverse handle set at top of the vertical extensible rod set. A through-type mounting portion in non-recessed state is set between the front and rear shell plates correspondingly to the transverse handle. Said mounting portion could be matched with the transverse handle, such that the transverse handle in idle state could be retracted transversely into the mounting portion.

1 . A tie-rod luggage box comprising:
 a main box body, comprising of a front shell plate and a rear shell plate in open or close state;   an L-shaped extensible tie-rod, set between the front and rear shell plates, adjacent to one flange of the front and rear shell plates; said L-shaped extensible tie-rod at least comprises of a vertical extensible rod set extended vertically along the inner side of the main box body and a transverse handle set at top of the vertical extensible rod set; with use of the vertical extensible rod set, the transverse handle could be pulled upwards for holding or pressed downwards into a retractable state;   a through-type mounting portion in non-recessed state, set between the front and rear shell plates correspondingly to the transverse handle; and, said mounting portion could be matched with the transverse handle, such that the transverse handle in idle state could be retracted transversely into the mounting portion;   since the front and rear shell plates do not require for a recessed portion to accommodate the tie-rod, only a single set of moulds could be used to fabricate the front and rear shell plates of desired integrity, provided that L-shaped extensible tie-rod is set; this could save the manufacturing cost, increase the inner space of the main box body and improve its visual effect.   
     
     
         2 . The structure defined in  claim 1 , wherein a pin joint portion is set between the front and rear shell plates, so the front and rear shell plates can be opened or closed by taking the pin joint portion as an axle center; a box frame is also formed between the front and rear shell plates; additionally a groove is set at the center of the box frame; said U-shaped extensible tie-rod is mounted into the groove of the box frame opposite to one side of the pin joint portion; said vertical extensible rod set is vertically set along the inner side of the box frame; moreover, said mounting portion is arranged correspondingly to the groove of the box frame and the transverse handle of said L-shaped extensible tie-rod;
 of which, said mounting portion comprises of an opening onto the groove of the box frame and a holding seat capable of being set on the opening; said holding seat could contain the transverse handle, while the vertical extensible rod set could penetrate one side of the holding seat, such that the transverse handle in idle state could be contained into the holding seat and concealed transversely into the groove of the box frame.   
     
     
         3 . The structure defined in  claim 2 , wherein the front and rear shell plates are of an oblique or arched periphery, so that the vertical extensible rod set of said U-shaped extensible tie-rod could be pulled or retracted obliquely or archedly; the transverse handle could thus be pulled upwards to the service position and located over the center of the main box body. 
     
     
         4 . The structure defined in  claim 1 , wherein a control button is arranged at a preset location of the transverse handle; said control button is linked with the vertical extensible rod set; when the user presses the control button, the vertical extensible rod set could move upwards to lift off the transverse handle for the user. 
     
     
         5 . The structure defined in  claim 4 , wherein the vertical extensible rod set of said L-shaped extensible tie-rod at least comprises of an outer tube, an inner tube set into the outer tube in a moveable state and an elastic bracing member set below the inner tube; of which, the transverse handle is set at top of the inner tube, while a locating portion is arranged correspondingly to the inner and outer tubes:, said locating portion is linked with the control button of the transverse handle, such that when the control button is pressed, the locating portion is in a release state, enabling the elastic bracing member to lift off the inner tube; when the control button is released, the inner tube can be shifted to the preset location, and the locating portion is in a locked sate, so that the inner tube could be located securely. 
     
     
         6 . The structure defined in  claim 5 , wherein a limiting member is set on the transverse handle at one side of the control button, so that the control button could be locked or unlocked via control of the limiting member. 
     
     
         7 . The structure defined in  claim 1 , wherein a coupling element is set between the front and rear shell plates of the main box body; said coupling element comprises of a puller and a coupler, permitting to control the coupler via the puller for connection or separation, and making the front and rear shell plates in an open or close state. 
     
     
         8 . The structure defined in  claim 1 , wherein the front and real shell plates of the main box body are of a prefabricated shell body. 
     
     
         9 . The structure defined in  claim 1 , wherein said L-shaped extensible tie-rod and mounting portion are arranged laterally at the box frame of the front or rear shell plate.