Waler clamp

Abstract

A waler clamp having a structure that facilitates placement of a waler board between upper and lower plates of the waler clamp, and, at the same time, provides excellent rigidity and strength against deformation and twisting of the waler clamp as a wedge is driven through openings in the waler clamp to wedge a board against abutting vertical frame members of adjacent concrete wall forms is provided. The clamp includes an upper plate having a hook for engaging the wall form, a lower plate spaced below the upper plate, the upper and lower plates interconnected at respective longitudinal edges by a side web having an opening adapted to receive a waler board.

1 . A waler clamp for use with a concrete wall form, comprising: 
 an upper plate having a hook for engaging a wall form;    a lower plate spaced below the upper plate; and    the upper plate and lower plate interconnected at respective longitudinal edges by a side web, the side web having an opening adapted to receive a waler board.    
   
   
       2 . The waler clamp of  claim 1 , further comprising: 
 an end flap extending from the side web and projecting between the upper plate and the lower plate in proximity to distal ends of the upper plate and the lower plate.    
   
   
       3 . The clamp of  claim 1 , wherein the hook includes a tooth for engaging a recess defined by abutting vertical frame members of adjacent wall forms.  
   
   
       4 . The clamp of  claim 1 , wherein the upper plate further defines a notch for engaging a vertical rib projecting from one of abutting vertical frame members of adjacent wall forms.  
   
   
       5 . The clamp of  claim 1 , wherein each of the upper and lower plates defines a wedge opening.  
   
   
       6 . The clamp of  claim 5 , further comprising a wedge disposed through the wedge openings.  
   
   
       7 . The clamp of  claim 6 , wherein the wedge has a flared lower end with a width greater than the width of the wedge opening in the lower plate, whereby the wedge is retained by the waler clamp.  
   
   
       8 . A concrete wall form, comprising: 
 at least two adjacent wall forms having vertical frame members held in abutting relationship, the abutting vertical fame members having aligned horizontal openings; and    a waler clamp having a hook engaging the aligned horizontal openings and thereby being supported on the vertical frame members, the waler clamp including an upper plate having a hook for engaging a wall form, a lower plate spaced below the upper plate, and the upper plate and lower plate interconnected at respective longitudinal edges by a side web, the side web having an opening adapted to receive a waler board.    
   
   
       9 . The wall form of  claim 8 , further comprising: 
 an end flap extending from the side web and projecting between the upper plate and the lower plate in proximity to distal ends of the upper plate and the lower plate.    
   
   
       10 . The wall form of  claim 8 , wherein the hook includes a tooth for engaging a recess defined by abutting vertical frame members of adjacent wall forms.  
   
   
       11 . The wall form of  claim 8 , wherein the upper plate further defines a notch for engaging a vertical rib projecting from one of abutting vertical frame members of adjacent wall forms.  
   
   
       12 . The wall form of  claim 8 , wherein each of the upper and lower plates defines a wedge opening.  
   
   
       13 . The wall form of  claim 12 , further comprising a wedge disposed through the wedge openings.  
   
   
       14 . The wall form of  claim 13 , wherein the wedge has a flared lower end with a width greater than the width of the wedge opening in the lower plate, whereby the wedge is retained by the waler clamp.