Shelf fixing device for a refrigerator

Abstract

A shelf fixing device for attaching a shelf to an internal wall of a refrigerator is provided. The shelf fixing device includes a vertical supporting plate, a horizontal supporting plate, a stopping plate, and hooking device. The hooking device includes a cylinder part with first and second ends, a plurality of hooking gap, and a predetermined number of protrudes extending substantially perpendicularly and radially from the side surface the cylinder part. The first end of the cylinder part is attached to the second wall of the vertical supporting plate. The protrude is aligned with the second end of the cylinder part. The hooking gap is defined by the protrude, the side of the cylinder part, and the second wall of the vertical supporting plate. The shelf clip is adapted to detachably attach the shelf clip to the internal wall of the refrigerator. The shelf clip is made of plastic.

1 . A shelf fixing device for attaching a shelf to an internal wall of a refrigerator comprising: 
 a) a vertical supporting plate comprising a first wall and a second wall separated by an edge;    b) a horizontal supporting plate comprising a top surface and a bottom surface separated by an edge, wherein a part of the edge is attached to the first wall of the vertical supporting plate;    c) a stopping plate comprising a first wall and a second wall separated by an edge, wherein the a part of the edge is attached to the edge of the horizontal supporting plate upward from the top surface; and    d) a hooking device comprising a cylinder part with first and second ends, a plurality of hooking gap, and a predetermined number of protrudes extending substantially perpendicularly and radially from the side surface the cylinder part, wherein the first end of the cylinder part is attached to the second wall of the vertical supporting plate, wherein the protrude is aligned with the second end of the cylinder part, wherein the hooking gap is defined by the protrude, the side of the cylinder part, and the second wall of the vertical supporting plate.    
   
   
       2 . The shelf fixing device of  claim 1 , wherein the vertical supporting plate, the horizontal supporting plate, the stopping plate, and the hooking device are integrated into one body and form a shelf clip.  
   
   
       3 . The shelf fixing device of  claim 2 , wherein the hooking device is adapted to detachably attach the shelf clip to the internal wall of the refrigerator.  
   
   
       4 . The shelf fixing device of  claim 3 , wherein the shelf clip is made of plastic.  
   
   
       5 . The shelf fixing device of  claim 1 , wherein the first wall and the top surface of the horizontal supporting plate meet each other substantially perpendicularly.  
   
   
       6 . The shelf fixing device of  claim 1 , further comprising: 
 a) an accepting hole provided on the internal wall of the refrigerator for accepting the hooking device, having a shape on the internal wall adapted to accept the hooking device and to lock the hooking device by rotating the hooking device by a predetermined angle; and    b) a shelf board comprising a top surface, a bottom surface, and a plurality of ends, wherein each end of the shelf board is adapted to straddle the horizontal supporting plate and the stopping plate.    
   
   
       7 . The shelf fixing device of  claim 6 , wherein the accepting hole comprises an entrance part, a holding bottleneck part, and a backroom allowing the protrude's rotation.  
   
   
       8 . The shelf fixing device of  claim 7 , wherein the depth of the holding bottleneck part is commensurate with the thickness of the internal wall of the refrigerator.  
   
   
       9 . The shelf fixing device of  claim 8 , wherein the depth of the holding bottleneck part is smaller than the thickness of the internal wall of the refrigerator.  
   
   
       10 . The shelf fixing device of  claim 7 , wherein the vertical supporting plate, the horizontal supporting plate, the stopping plate, and the hooking device are integrated into one body and form a shelf clip, wherein the shelf straddles three or more shelf clips.  
   
   
       11 . The shelf fixing device of  claim 7 , wherein the shelf board further comprises a plurality of recess on the bottom of the shelf board, wherein the recess has a shape adapted to partially accept the horizontal supporting plate and the stopping plate.  
   
   
       12 . The shelf fixing device of  claim 1 , wherein the protrudes are disposed evenly around the circumference of the cylinder.  
   
   
       13 . The shelf fixing device of  claim 1 , wherein at least one of the protrudes is aligned vertically upward from the center of the cylinder part.  
   
   
       14 . The shelf fixing device of  claim 13 , wherein the predetermined number of the protrudes is two.  
   
   
       15 . The shelf fixing device of  claim 13 , further comprising: 
 a) an accepting hole provided on the internal wall of the refrigerator for accepting the hooking device, having a shape on the internal wall adapted to accept the hooking device and to lock the hooking device by rotating the hooking device by a predetermined angle; and    b) a shelf board comprising a top surface, a bottom surface, and a plurality of ends, wherein each end of the shelf board is adapted to straddle the horizontal supporting plate and the stopping plate,    wherein the vertical supporting plate, the horizontal supporting plate, the stopping plate, and the hooking device are integrated into one body and form a shelf clip.    
   
   
       16 . The shelf fixing device of  claim 15 , wherein the hooking device has two radial positions comprising an inserting position and a locking position.  
   
   
       17 . The shelf fixing device of  claim 16 , wherein the angle between the inserting position and the locking position is determined by the number of the protrudes.  
   
   
       18 . The shelf fixing device of  claim 17 , wherein at least one of the protrudes is aligned vertically upward from the center of the cylinder part in a locking position.  
   
   
       19 . The shelf fixing device of  claim 1 , further comprising a propping plate for propping the horizontal supporting plate against the gravitational force.  
   
   
       20 . The shelf fixing device of  claim 19 , wherein the propping plate is right triangular comprising a first leg part, a second leg part, and a hypotenuse part, wherein the first leg part is attached to the bottom surface of the horizontal supporting plate, wherein the second leg part is attached to the first wall of the vertical supporting plate, wherein the propping plate meets the vertical supporting plate and the horizontal supporting plate substantially perpendicularly, wherein the propping plate is integrated with the vertical supporting plate and the horizontal supporting plate.