Combination plastic pallet

Abstract

A combination plastic pallet includes a plurality of top deckboards each having a plurality of bottom plug rods, and a plurality of stringers each having a plurality of hollow columns that receive the. bottom plugs of the top deckboards respectively to have said top deckboards be supported on the stringers. Each bottom plug of each top deckboard has a split bottom tip and a barbed portion extending around the periphery of the split bottom tip. Each hollow column of each stringer has a stepped annular edge extending around the inside wall for engagement with the barbed portion of the associating bottom plug rod.

1 . A combination plastic pallet comprising:
 a plurality of plastic top deckboards horizontally arranged in parallel and each having a plurality of bottom plug rods continuous with and extending downward from a bottom surface of said top deckboard, each said bottom plug rod having a bottom split tip and a barbed portion extending around the periphery of said bottom split tip; and   a plurality of plastic stringers fastened to said top deckboards at a bottom side and arranged in parallel, each of said stringers comprising a plurality of hollow columns continuous with said stringers, each said hollow column having a stepped annular edge extending around an inside wall thereof;   wherein the bottom plug rods of said top deckboards are respectively tightly plugged into said hollow columns of said stringers, the barbed portion of said bottom split tip of each bottom plug rod being forced into engagement with the stepped annular edge of the associating hollow column, whereby each of said top deckboards is directly fixed to each of said stringers without intervening joints.   
   
   
       2 . The combination plastic pallet as claimed in  claim 1 , wherein said barbed portion has a diameter gradually upwardly increased in direction from a bottom side thereof toward the respective top deckboard. 
   
   
       3 . The combination plastic pallet as claimed in  claim 1 , wherein each said stringer has a plurality of tool notches on a top side thereof corresponding to said top deckboard. 
   
   
       4 . The combination plastic pallet as claimed in  claim 1 , further comprising a plurality of bottom deckboards respectively fastened to said hollow columns of said stringers and arranged in parallel corresponding to said top deckboards, each said bottom deckboard comprising a plurality of cylindrical sockets projecting upwardly and continuous with said bottom deckboard that receive the associating hollow columns of said stringers;
 wherein when fastened said plug rods, said hollow columns, and said cylindrical sockets form a structure having three concentric cylinders joined together.   
   
   
       5 . The combination plastic pallet as claimed in  claim 4 , wherein each said hollow column has a plurality of outside annular ribs extending around the periphery thereof at different elevations and stopped against an inside wall of the associating cylindrical socket. 
   
   
       6 . The combination plastic pallet as claimed in  claim 5 , wherein each said cylindrical socket has a plurality of inside annular ribs extending around an inside wall thereof at different elevations for engagement with the outside annular ribs of the associating hollow column. 
   
   
       7 . The combination plastic pallet as claimed in  claim 5 , wherein each said cylindrical socket has a plurality of inside annular grooves extending around an inside wall thereof at different elevations for engagement with the outside annular ribs of the associating hollow column. 
   
   
       8 . The combination plastic pallet as claimed in  claim 4 , wherein each said hollow column has a plurality of outside annular grooves; each said cylindrical socket has a plurality of inside annular ribs extending around an inside wall thereof at different elevations for engagement with the outside annular grooves of the associating hollow column. 
   
   
       9 . The combination plastic pallet as claimed in  claim 4 , wherein each said stringer has a plurality of tool notches on a top side thereof corresponding to said top deckboard and a bottom side thereof corresponding to said bottom deckboard.