Concrete forming system

Abstract

A concrete forming panel system as disclosed having at least two panels wherein each panel has a pair of spaced apart sidewalls. Each panel has at least one opening along each sidewall and the panels are adapted to be positioned in a side-by-side relationship so that one sidewall of each panel abuts against the sidewall of the adjacent side panel and, upon doing so, the opening in one sidewall of the first panel registers with the opening in the abutting sidewall of the adjacent panel. An elongated wall pin is pivotally secured to one end of an arm while the other end of the arm is pivotally mounted to its associated panel. The arm is pivotal between an extended position in which the wall pin extends through registering openings on adjacent panels, and a retracted position in which the wall pin is retracted from the registering opening in the adjacent panel. The wall pin and arm construction is particularly advantageous for confined spaces, such as an inside corner form.

1 . A concrete forming panel system comprising 
 at least two panels, each panel having a pair of spaced side walls,    said panels having at least one opening along each side wall,    said panels adapted to be positioned in a side by side relationship so that said side wall of each panel abuts against the side wall of the adjacent side wall and said at least one opening in each side panel registers with the at least one opening in the adjacent panel,    an elongated wall pin,    an arm having a first end pivotally mounted to one end of said pin and a second end pivotally mounted to one of said panels, said arm being pivotal between an extended position in which the wall pin extends through registering openings on adjacent panels, and a retracted position in which said wall pin is retracted from said registering opening in said adjacent panel.    
   
   
       2 . The invention as defined in  claim 1  wherein said panels are constructed of aluminum.  
   
   
       3 . The invention as defined in  claim 2  wherein each side wall comprises an aluminum tube.  
   
   
       4 . The invention as defined in  claim 1  and comprising a tubular and cylindrical bushing positioned in each said opening in said side wall.  
   
   
       5 . The invention as defined in  claim 1  wherein said at least one opening in said side walls comprises a plurality of spaced apart openings.  
   
   
       6 . The invention as defined in  claim 1  and comprising a stop pin attached to said one panel which limits pivoting of said arm to said retracted position.  
   
   
       7 . The invention as defined in  claim 1  wherein with said arm in said retracted position, the other end of said pin is at least partially inserted into said opening of said one panel.  
   
   
       8 . The invention as defined in  claim 1  wherein said arm is L-shaped.