Ground Post Extracting Tool

Abstract

The present disclosure provides a post extraction tool that is simply screwed into a hole drawn into a post that is already present into the ground. By screwing the extraction tool into the post, the components of the tool expand inside and clutch to the internal walls of the post, so that it is firmly fixed into the post. The extraction tool can, then, be simply hooked to an external pulling out equipment or machine, e.g., a tractor, a jack, etc. Thereafter, by applying a pulling force using the pulling out machine, the extraction tool is pulled, that in turn extracts the post out from the ground.

1 . A post extraction tool, comprising:
 at least one hook attachment;   at least one rotating shaft connected to the at least one hook attachment such that the at least one rotating shaft rotates with a rotation of the at least one hook attachment; and   at least one clawing shaft including at least two clawing components, wherein each of the at least two clawing components has a cylindrical flap like structure, that freely opens and closes, and is partially releasably attached to the at least one clawing shaft, and wherein the at least one clawing shaft is rotatably connected to the at least one rotating shaft,   
       wherein the at least one clawing shaft is inserted into a hole in a post, and as the post extraction tool rotates using the at least one hook attachment, the at least one rotating shaft rotates that tightens the at least one clawing shaft inside the hole in the post, the cylindrical flap like structures of the at least two clawing components expand, open up, and clutch firmly, under pressure, from internal of the hole in the post, and the post is extracted out by applying an external pulling force at the at least one hook attachment. 
     
     
         2 . The post extraction tool of  claim 1 , further comprising
 at least two sets of supporting nuts situated on top and bottom of the at least one clawing shaft, and supporting the at least one clawing shaft,   
       wherein the at least one clawing shaft is a spring-loaded rod, the spring-loaded rod including a rod with a spring wound around the rod, wherein the spring supports top and bottom portions of the at least two clawing components when the at least one clawing shaft is inserted into the hole in the post, and the at least two clawing components expand, open up, and clutch firmly, under pressure, the internal of the hole in the post. 
     
     
         3 . The post extraction tool of  claim 2 , wherein the at least one rotating shaft has a threaded screw like outer surface and the rod of the at least one clawing shaft has a threaded screw like outer surface to support the spring wound around it. 
     
     
         4 . The post extraction tool of  claim 1 , wherein the at least one rotating shaft and the at least one clawing shaft are an integrated shaft, and wherein the integrated shaft has the at least two clawing components attached to a partial lower portion of the integrated shaft. 
     
     
         5 . The post extraction tool of  claim 1 , wherein the at least one rotating shaft and the at least one clawing shaft are two separate shafts that are rotatably connected to each other. 
     
     
         6 . The post extraction tool of  claim 1 , wherein the at least one hook attachment, the at least one rotating shaft, and the at least one clawing shaft rotate together in one direction for tightening or loosening the post extraction tool inside the hole in the post. 
     
     
         7 . A post extraction tool, comprising:
 at least one rotating shaft; and   at least one clawing shaft including at least two clawing components, wherein each of the at least two clawing components has a cylindrical flap like structure, that freely opens and closes, and is partially releasably attached to the at least one clawing shaft, wherein the at least one clawing shaft is rotatably connected to the at least one rotating shaft, and wherein the at least two clawing components are aligned opposite to each other in a vertical axis along the length of the post extraction tool, such that an end with the cylindrical flap like structure of one clawing component, of the at least two clawing components, faces an end with the cylindrical flap like structure of the other clawing component,   
       wherein the at least one clawing shaft is inserted into a hole in a post, and the post extraction tool rotates by rotating the at least one rotating shaft that further rotates and tightens the at least one clawing shaft inside the hole in the post, the cylindrical flap like structures of the at least two clawing components expand, open up, and clutch firmly, under pressure, from internal of the hole in the post, and the post is extracted out by applying an external pulling force at the post extraction tool. 
     
     
         8 . The post extraction tool of  claim 7 , further comprising a hook attachment connected to the at least one rotating shaft for handling by a user, wherein the post extraction tool is rotated using the hook attachment, and the external pulling force is applied at the hook attachment. 
     
     
         9 . The post extraction tool of  claim 8 , further comprising:
 at least two sets of supporting nuts situated on top and bottom of the at least one clawing shaft, and supporting the at least one clawing shaft,   
       wherein the at least one clawing shaft is a spring-loaded rod, the spring-loaded rod including a rod with a spring wound around the rod, wherein the spring supports top and bottom portions of the at least two clawing components when the at least one clawing shaft is inserted into the hole in the post, and the at least two clawing components expand, open up, and clutch firmly, under pressure, the internal of the hole in the post. 
     
     
         10 . A post extraction tool, comprising:
 at least one rotating shaft; and   at least one clawing shaft including at least two clawing components, wherein each of the at least two clawing components has a cylindrical flap like structure, that freely opens and closes, and is partially releasably attached to the at least one clawing shaft, wherein the at least one clawing shaft is rotatably connected to the at least one rotating shaft, and wherein the at least two clawing components are aligned with each other in a vertical axis along the length of the post extraction tool, such that one end with the cylindrical flap like structure of one clawing component faces the other end of cylindrical flap like structure of the other clawing component,   
       wherein the at least one clawing shaft is inserted into a hole in a post, and the post extraction tool rotates by rotating the at least one rotating shaft that further rotates and tightens the at least one clawing shaft inside the hole in the post, the cylindrical flap like structures of the at least two clawing components expand, open up, and clutch firmly, under pressure, from internal of the hole in the post, and the post is extracted out by applying an external pulling force at the post extraction tool. 
     
     
         11 . The post extraction tool of  claim 9 , further comprising a hook attachment connected to the at least one rotating shaft for handling by a user, wherein the post extraction tool is rotated using the hook attachment, and the external pulling force is applied at the hook attachment. 
     
     
         12 . The post extraction tool of  claim 11 , further comprising:
 at least two sets of supporting nuts situated on top and bottom of the at least one clawing shaft, and supporting the at least one clawing shaft,   
       wherein the at least one clawing shaft is a spring-loaded rod, the spring-loaded rod including a rod with a spring wound around the rod, wherein the spring supports top and bottom portions of the at least two clawing components when the at least one clawing shaft is inserted into the hole in the post, and the at least two clawing components expand, open up, and clutch firmly, under pressure, the internal of the hole in the post.