Cart Type Bag

Abstract

Disclosed is a cart type bag whose volume can be minimized when the cart type bag is carried or stored. The cart type bag is made of material that can be shrunk or restored depending on the volume of stored items, and comprises: a bottom side volume adjustment member that is arranged in the inner bottom side of the bag and comprises a pair of opposite base plates, which are foldable or unfoldable; a rest that is arranged in the outer bottom side of the bag and is fixed to one of the pair of base plates; a bag movement member that comprises a mount that is arranged in the outer bottom side of the bag and is fixed to the other of the pair of base plates and in which a mounting space is defined in the outer bottom side of the bag, and wheels that are respectively fixed to both lower edges of the mount; and a balancing means that balances the pair of base plates of the bottom side volume adjustment member such that the pair of base plates are not folded after the pair of base plates is unfolded.

1 . A cart type bag, which is made of material that can be shrunk or restored depending on the volume of stored items, comprising:
 a bottom side volume adjustment member  100  that is arranged in the inner bottom side of the bag and comprises a pair of opposite base plates  110  and  120 , which are foldable or unfoldable;   a rest  200  that is arranged in the outer bottom side of the bag and is fixed to one  110  of the pair of base plates  110  and  120 ;   a bag movement member  300  that comprises a mount  310  that is arranged in the outer bottom side of the bag and is fixed to the other  120  of the pair of base plates  110  and  120  and in which a mounting space  310   a  is defined in the outer bottom side of the bag, and wheels  320  that are respectively fixed to both lower edges of the mount  310 ; and   a balancing means that balances the pair of base plates  110  and  120  constituting the bottom side volume adjustment member  100  such that the pair of base plates  110  and  120  are not folded after the pair of base plates  110  and  120  is unfolded.   
   
   
       2 . The cart type bag according to  claim 1 , wherein the pair of base plates  110  and  120  of the bottom side volume adjustment member  100  is integrally formed and a fold groove  130  is formed along a boundary between the pair of integrally formed base plates  110  and  120 . 
   
   
       3 . The cart type bag according to  claim 1 , wherein the pair of base plates  110  and  120  of the bottom side volume adjustment member  100  is separately formed, and interconnected and fixed by a hinge. 
   
   
       4 . The cart type bag according to  claim 1 , wherein the balancing means comprises:
 a fixing tube  412  that is arranged at the bottom side of the mount  310  in correspondence to at least one through hole  411  formed in an end side of the rest  200 ; and   a balancing bar  413  inserted in the fixing tube  412  through the through hole  411 .   
   
   
       5 . The cart type bag according to  claim 1 , wherein the balancing means comprises:
 a rotating balancing bar  421  rotatably attached to the bottom side of the rest  200 ; and   an insertion member  422  that is provided at the bottom side of the mount  310  and has an insertion space  422   a  in which the rotating balancing bar  321  is inserted.   
   
   
       6 . The cart type bag according to  claim 1 , wherein the balancing means comprises:
 a guiding part  432  that has one rail groove  431  formed in an inner side of the rest  200  and the other rail grove  432   a  formed in the bottom side of the mount  310  and corresponding to the one rail groove  431 ; and   a balancing plate  433  that is slid and inserted between the one rail groove  431  and the other rail groove  432   a.      
   
   
       7 . The cart type bag according to  claim 1 , wherein the balancing means comprises:
 a fixing part  435  that has a through space  434  formed in an inner side of the rest  200  and an insertion space  435   a  formed in the bottom side of the mount  435  and corresponding to the through space  434 ; and   a balancing plate  436  that passes the through space  434  and is forcedly inserted and fixed in the insertion space  435   a.      
   
   
       8 . The cart type bag according to  claim 1 , wherein the balancing means comprises:
 a fixing tube  461  that is provided at the bottom side of the rest  310  in correspondence to at least one through hole  460  formed at a side of the rest  200 ;   a balancing bar  462  that is provided in correspondence to the through hole  461  and is inserted in the fixing tube  461  through the through hole  460 , with an insertion space  463  formed in a side of the balancing bar  462 ; and   a fixing means that comprises a blocking plate  464  that blocks an outer end of the balancing bar  462 , a hooking plate  465  projecting from the blocking plate  464 , and a hooking jaw  465   a  formed below the hooking plate  465 , wherein the fixing means is hooked and fixed on the rest  200  when the hooking jaw  465   a  is inserted in the insertion space  463  of the balancing bar  462 .   
   
   
       9 . The cart type bag according to  claim 1 , wherein the balancing means comprises:
 a fixing tube  467  that is provided at the bottom side of the rest  310  in correspondence to at least one through hole  466  formed at a side of the rest  200 ; and   a balancing bar  468  that is provided in correspondence to the through hole  466  and is inserted in the fixing tube  467  through the through hole  466 , the balancing bar  468  including a fixing rack comprising a hooking jaw  468   a  that projects from a side of the balancing bar  468  and fixes the balancing bar  468  inserted in the fixing tube  467  through the through hole  466 , wherein the hooking jaw  468   a  is hooked and fixed on the rest  200  when the balancing bar  468  is inserted in the fixing tuber  467  through the through hole  466 .   
   
   
       10 . The cart type bag according to  claim 1 , further comprising a retractable handle  500  whose length can be adjusted, and a pair of fixing holes  311  that is formed on the mount  310  of the bag movement member  300 , the retractable handle  500  being inserted and fixed in the pair of fixing holes  311 .