Scaffold deck and self-locking hook

Abstract

A type of deck for use in a scaffold assembly, wherein the frame for the deck has at least two hooks at each end for hooking on to a bar section of the scaffold. The top of the deck extends over one end of the frame and over the hooks at that end when decks are placed side by side, hooked on to the same bar, this top section on one deck prevents the adjacent deck from flying off the bar.

1 . A deck configured to be removably secured to a scaffold assembly, comprising: 
 a) a plurality of rails forming a rectangular frame with a first end and a second end,    b) at least two first hooks attached to and extending from a rail at the first end of the frame;    c) at least two second hooks attached to and extending from a rail at the second end of the frame; and    d) a flat top with a first end and a second end attached to the frame, dimensioned so that the top has a width approximately the same as the frame width and a length such that the second end of the top is approximately flush with the second end of the frame and the first end of the top extends beyond the first end of the frame so that the first end of the top extends over the first hooks.    
   
   
       2 . The deck as claimed in  claim 1 , wherein the first hooks include a bottom ridge for securing the underside of a bar.  
   
   
       3 . The deck as claimed in  claim 1 , wherein the first and second hooks are generally located at the corners of the rectangular frame.  
   
   
       4 . The deck as claimed in  claim 3 , wherein the first hooks and the second hooks are offset laterally from the hooks at the other end, to permit multiple decks to be aligned with one another.  
   
   
       5 . The deck as claimed in  claim 1 , wherein the top is plywood.  
   
   
       6 . The deck as claimed in  claim 1 , wherein the top is aluminum.  
   
   
       7 . The deck as claimed in  claim 1 , wherein the top is steel.  
   
   
       8 . A hook configured to be attached to a scaffold deck, comprising: 
 a) a body;    b) means to secure the body to the scaffold deck;    c) an upper tongue member for resting on a bar; and    d) a bottom ridge for securing the underside of the bar dimensioned so that the bar can pass between the upper tongue member and the bottom ridge.    
   
   
       9 . The hook as claimed in  claim 8 , wherein the securing means are a plurality of spaced apertures.  
   
   
       10 . A deck configured to be removably secured to a scaffold assembly, comprising: 
 a) a plurality of rails forming a rectangular frame with a first end and a second end;    b) at least two first hooks attached to and extending from a rail at the first end of the frame, wherein the first hooks include: 
 i) a body;  
 ii) means to secure the body to the rectangular frame;  
 iii) an upper tongue member for resting on a bar, and  
 iv) a bottom ridge for securing the underside of the bar, dimensioned so that the bar can pass between the upper tongue member and the bottom ridge;  
   c) at least two second hooks attached to and extending from a rail at the second end of the frame; and    d) a flat top with a first end and a second end attached to the frame, dimensioned so that the top has a width approximately the same as the frame width and a length such that the second end of the top is approximately flush with the second end of the frame and the first end of the top extends beyond the first end of the frame so that the first end of the top extends over the first hooks.    
   
   
       11 . The deck as claimed in  claim 10 , wherein the first and second hooks are generally located at the corners of the rectangular frame.  
   
   
       12 . The deck as claimed in  claim 11 , wherein the first hooks and the second hooks are offset laterally from the hooks at the other end, to permit multiple decks to be aligned with one another.