Trash bag fixing device

Abstract

A trash bag fixing device for a trash can includes a top locking part, a bottom locking part, a connecting part for connecting the top and the bottom locking parts elastically, and a holder for engaging the trash bag frictionally. The top and the bottom locking parts hold the trash bag circumferentially in between frictionally when locked. The top locking part includes an enclosing part for enclosing the bottom locking part, a stopping part for keeping the bottom locking part from slipping through the top locking part, and handles. The bottom locking part has a holding part used to fix the bottom locking part to the trash can. The bottom locking part can be coalesced with the trash can into one. The connecting part includes a pleat with folds, which can be folded entirely when the top and bottom locking parts are locked and maintains a predetermined distance elastically otherwise.

1 . A trash bag fixing device for a trash can, comprising: 
 a) a top locking part;    b) a bottom locking part which is adapted to be fitted to the top of the trash can; and    c) a connecting part for connecting the top locking part and the bottom locking part elastically,    wherein the top locking part and the bottom locking part are a first predetermined distance apart when locked, and a second predetermined distance apart when unlocked.    
   
   
       2 . The trash bag fixing device of  claim 1 , wherein the top locking part comprises an enclosing part for enclosing the bottom locking part, a stopping part for keeping the bottom locking part from slipping through the top locking part.  
   
   
       3 . The trash bag fixing device of  claim 2 , wherein the top locking part further comprises one or more handles.  
   
   
       4 . The trash bag fixing device of  claim 1 , wherein the bottom locking part has a holding part for an attachment to the trash can.  
   
   
       5 . The trash bag fixing device of  claim 1 , wherein the connecting part comprises a pleat with one or more folds, wherein the dimension of the pleat corresponds to the first predetermined distance when the pleat is folded and the second predetermined distance when the pleat is extended.  
   
   
       6 . The trash bag fixing device of  claim 5 , wherein the first predetermined distance is a minimum distance corresponding to the locked state.  
   
   
       7 . The trash bag fixing device of  claim 5 , wherein the minimum distance is about zero (0) centimeter.  
   
   
       8 . The trash bag fixing device of  claim 5 , wherein the second predetermined distance is a maximum distance corresponding to the unlocked state.  
   
   
       9 . The trash bag fixing device of  claim 5 , wherein the maximum distance is from about five (5) to ten (10) centimeters.  
   
   
       10 . The trash bag fixing device of  claim 1 , further comprising a holder for engaging the trash bag frictionally.  
   
   
       11 . The trash bag fixing device of  claim 10 , wherein the holder comprises one or more recesses, wherein the recess comprises a gap of a shape of wedge.  
   
   
       12 . The trash bag fixing device of  claim 11 , wherein the recess comprises tapering walls, wherein the walls are made of elastic material.  
   
   
       13 . The trash bag fixing device of  claim 12 , wherein the holder comprises a first recess and a second recess.  
   
   
       14 . The trash bag fixing device of  claim 13 , wherein the distance between the first recess and the second recess is predetermined to the thickness and the size of the trash bag.  
   
   
       15 . The trash bag fixing device of  claim 14 , wherein the distance is from about one (1) to five (5) centimeters.  
   
   
       16 . The trash bag fixing device of  claim 14 , wherein the holder is integrated with the bottom locking part.  
   
   
       17 . The trash bag fixing device of  claim 1 , wherein the top locking part and the bottom locking part have a predetermined geometrical shape.  
   
   
       18 . The trash bag fixing device of  claim 17 , wherein the top locking part and the bottom locking part are circular.  
   
   
       19 . A trash bag fixing device comprising: 
 a) a container comprising a top open end;    b) a top locking part;    c) a bottom locking part fixed to the top of the trash can;    d) a connecting part for connecting the top locking part and the bottom locking part elastically; and    e) a holder for engaging the trash bag frictionally,    wherein the top locking part and the bottom locking part hold the trash bag circumferentially in between when locked.    
   
   
       20 . The trash bag fixing device of  claim 19 , wherein the bottom locking part is integrated with the container.  
   
   
       21 . The trash bag fixing device of  claim 19 , wherein the top locking part comprises an enclosing part for enclosing the bottom locking part, a stopping part for keeping the bottom locking part from slipping through the top locking part.  
   
   
       22 . The trash bag fixing device of  claim 21 , wherein the top locking part further comprises one or more handles.  
   
   
       22 . The trash bag fixing device of  claim 19 , wherein the bottom locking part has a holding part for an attachment to the trash can.  
   
   
       23 . The trash bag fixing device of  claim 19 , wherein the connecting part comprises a pleat with one or more folds, wherein the dimension of the pleat corresponds to a first predetermined distance when the pleat is folded and a second predetermined distance when the pleat is extended.  
   
   
       24 . The trash bag fixing device of  claim 19 , wherein the top locking part and the bottom locking part have the same shape as the trash can.