Reinforcing bar joint

Abstract

To avoid the rotation of a sleeve, providing an enhanced joint force. A reinforcing bar joint 1 according to the present invention includes an elliptic-sectioned sleeve 2 , a load transfer rod 3 to be inserted through the sleeve, and wedging means 4 . The sleeve 2 is configured so that end portions of reinforcing bars 5 a, 5 b can be inserted into openings 6 a, 6 b formed in respective ends of the sleeve 2 so that the reinforcing bars are arranged in series along an identical line. The load transfer rod 3 can also be inserted therethrough in parallel with the end portions of the reinforcing bars 5 a, 5 b which are inserted into the sleeve 2.

1 . A reinforcing bar joint comprising:
 an elliptic-sectioned sleeve having openings in both ends, end portions of two reinforcing bars being insertable into said openings, respectively, so that the reinforcing bars are arranged in series along an identical line;   a load transfer rod to be inserted through said sleeve so as to be in parallel with the end portions of said reinforcing bars which are inserted into said sleeve; and   a wedging means inserted through wedge insertion holes formed at opposite positions in a pair of flat wall portions constituting said sleeve,   said wedging means comprising a first wedge member to be driven into a space between either one of said two reinforcing bars and said load transfer rod, and a second wedge member to be driven into a space between the other reinforcing bar and said load transfer rod.   
   
   
       2 . The reinforcing bar joint according to  claim 1  wherein said load transfer rod are arranged on both sides of said two reinforcing bars. 
   
   
       3 . The reinforcing bar joint according to  claim 1  wherein protruding portions protruding toward peripheries of said reinforcing bars are formed on said load transfer rod. 
   
   
       4 . The reinforcing bar joint according to  claim 3  wherein said load transfer rod is composed of a straight portion and bent portions formed on respective ends of said straight portion so that said bent portions form said protruding portions. 
   
   
       5 . The reinforcing bar joint according to  claim 3  wherein said load transfer rod is composed of a rod body and large diameter portions that are detachably attached to respective ends of said rod body, said large diameter portions having an outer diameter that is greater than said rod body, so that said large diameter portions form said protruding portions. 
   
   
       6 . The reinforcing bar joint according to  claim 1  wherein said load transfer rod has a hardness that is relatively higher than that of said reinforcing bars. 
   
   
       7 . The reinforcing bar joint according to  claim 1  wherein said sleeve has a hardness that is relatively lower than that of said reinforcing bars. 
   
   
       8 . The reinforcing bar joint according to  claim 2  wherein protruding portions protruding toward peripheries of said reinforcing bars are formed on said load transfer rod. 
   
   
       9 . The reinforcing bar joint according to  claim 2  wherein said load transfer rod has a hardness that is relatively higher than that of said reinforcing bars. 
   
   
       10 . The reinforcing bar joint according to  claim 3  wherein said load transfer rod has a hardness that is relatively higher than that of said reinforcing bars. 
   
   
       11 . The reinforcing bar joint according to  claim 4  wherein said load transfer rod has a hardness that is relatively higher than that of said reinforcing bars. 
   
   
       12 . The reinforcing bar joint according to  claim 5  wherein said load transfer rod has a hardness that is relatively higher than that of said reinforcing bars. 
   
   
       13 . The reinforcing bar joint according to  claim 2  wherein said sleeve has a hardness that is relatively lower than that of said reinforcing bars. 
   
   
       14 . The reinforcing bar joint according to  claim 3  wherein said sleeve has a hardness that is relatively lower than that of said reinforcing bars. 
   
   
       15 . The reinforcing bar joint according to  claim 4  wherein said sleeve has a hardness that is relatively lower than that of said reinforcing bars. 
   
   
       16 . The reinforcing bar joint according to  claim 5  wherein said sleeve has a hardness that is relatively lower than that of said reinforcing bars.