Adjustable shelf storage system

Abstract

One section of a shelf storage system comprises a first unit having front and rear lower vertical members, each lower vertical member comprising a C-shaped, hollow channel having a base plate at one end, the vertical lower members being coupled together by braces. The vertical lower members have first and second adjacent row of notches formed on one surface thereof. A second unit, essentially identical to the first unit, is spaced from the first unit and joined thereto by cross members having locking lugs attached to each end. The locking lugs engage two adjacent notches formed in the first row on the surface of the front and rear vertical members of the first and second unit whereby the first and second units are secured together. The cross beams have a lip portion which is adapted to support a shelf or similar item positioned therebetween.

What is claimed is:  
     
         1 . A shelf storage system comprising: 
 a first unit having front and rear vertical members, each vertical member comprising a C-shaped hollow channel and having a base plate on one end thereof, a plurality of notches formed on one surface of said front and rear vertical members of said first unit;    a second unit having front and rear vertical members, each vertical member comprising a C-shaped hollow channel and a base plate on one end thereof;    a plurality of notches formed on one surface of said front and rear vertical members of said second unit;    a first cross beam having first and second ends, said first end of said first cross beam being coupled to selected notches formed on the surface of said front vertical member of said first unit, said second end of said first cross beam being coupled to selected notches formed on the surface of said front vertical member of said second unit; and    a second cross beam having first and second ends, said first end of said second cross beam being coupled to selected notches formed on the surface of said rear vertical member of said first unit; said second end of said second cross beam being coupled to selected notches formed on the surface of said rear vertical member of said second unit.    
     
     
         2 . The shelf storage system of  claim 1  wherein each of said vertical members have first and second ends, one end of each vertical member having a base plate formed thereon.  
     
     
         3 . The shelf storage system of  claim 1  further including: 
 a third unit having front and rear vertical members, each vertical member comprising a C-shaped channel and having extensions formed on one end thereof;  
 a plurality of notches formed on one surface of said front and rear vertical members of said third unit;  
 a fourth unit having front and rear vertical members, each vertical member comprising a C-shaped hollow channel and having extensions found on one end thereof;  
 a plurality of notches formed on one surface of said front and rear vertical members of said fourth unit;  
 a first cross beam having first and second ends, said first end of said first cross beam being coupled to selected notches formed on the surface of said front vertical member of said third unit, said second end of said first cross beam being coupled to selected notches formed on the surface of said front vertical member of said fourth unit; and  
 a second cross beam having first and second ends, said first end of said second cross beam being coupled to selected notches formed on the surface of said rear vertical member of said third unit; said second end of said second cross beam being coupled to selected notches formed on the surface of said rear vertical member of said fourth unit.  
 
     
     
         4 . The shelf system of  claim 3  wherein the extensions formed on the ends of said vertical members forming said third and fourth unit are positioned within channels in the vertical members forming said first and second units.