Hand held tamping device

Abstract

A hand held tamping device comprises an engine, an elongated housing, and a connection chamber. The engine is coupled by a clutch to a drive shaft and is capable of rotating the drive shaft. The elongated housing includes a tamping tube to tamp an object. The connection chamber houses the drive shaft and connects the engine and the elongated housing. The drive shaft extends into the elongated housing and is fixedly coupled to an eccentric drive that rotates with the drive shaft and is attached to a connecting rod that is coupled to the eccentric drive at the proximal end of the connecting rod and extends into the tamping tube at the distal end of the connecting rod. The distal end of the connecting rod is fixedly coupled to the tamping tube. The proximal end of the connecting rod rotates with the eccentric drive and the distal end of the connecting rod moves up and down in the elongated housing facilitating the tamping tube moving up and down in the elongated housing as the engine rotates the drive shaft.

1 . A hand held tamping device comprising: 
 an engine that is coupled to a drive shaft and is capable of rotating the drive shaft;    an elongated housing that includes a tamping tube to facilitate tamping an object;    a connection chamber that houses the drive shaft and connects the engine and the elongated housing, wherein the drive shaft extends into the elongated housing;    an eccentric drive that is fixedly coupled to the drive shaft and rotates with the drive shaft;    a connecting rod that is fixedly coupled to the eccentric drive at the proximal end of the connecting rod and extends into the tamping tube at its distal end, wherein the distal end of the connecting rod is fixedly coupled to the tamping tube, wherein the proximal end of the connecting rod rotates with the eccentric drive and the distal end of the connecting shaft moves up and down in the elongated housing facilitating the tamping tube to move up and down in the elongated housing as the engine rotates the drive shaft.    
   
   
       2 . The tamping device of  claim 1  in which the drive shaft is connected to the engine by a centrifical clutch.  
   
   
       4 . The tamping device as defined in  claim 1 , further comprising a balancing weight that balances the forces imposed by the connecting rod on the eccentric drive.  
   
   
       5 . The tamping device as defined in  claim 1 , wherein the connecting rod is coupled to the eccentric drive by way of a securing pin or shaft extending through a hole in the eccentric drive and the proximal end of the connecting rod so it is capable of rotating with the eccentric drive.  
   
   
       6 . The tamping device as defined in  claim 5 , wherein the connecting rod is further coupled to the eccentric drive by the inclusion of a rod bearing between the proximal end of the connecting rod and the pin or shaft.  
   
   
       7 . The tamping device as defined in  claim 1 , further comprising a member that is fixedly coupled to inner walls of the tamping tube and the distal end of the connecting rod is fixedly coupled to the member.  
   
   
       8 . The tamping device as defined in  claim 7 , wherein the distal end of the connecting rod is coupled to the member by way of a rod bearing.  
   
   
       9 . The tamping device as defined in  claim 1 , further comprising a handle that is fixedly coupled to the outer walls of the elongated housing.  
   
   
       10 . The tamping device as defined in  claim 9 , wherein the handle includes a throttle control that controls the speed of the engine.  
   
   
       11 . The tamping device as defined in  claim 10 , further comprising a throttle cable connecting the throttle control to the engine and enabling the throttle control to control the speed of the engine.  
   
   
       12 . The tamping device as defined in  claim 1 , further comprising guide bushings between the inner walls of the elongated housing and the outer wall of the tamping tube, the guide bushings enabling the tamping tube to move up and down in the elongated housing.  
   
   
       13 . The tamping device as defined in  claim 1 , further comprising a tamping foot that is fixedly coupled to the tamping tube and tamps the tamping object as the tamping tube moves up and down in the elongated housing.  
   
   
       14 . The tamping device as defined in  claim 1  in which the engine is a 2-cycle gasoline engine.  
   
   
       15 . The tamping device as defined in  claim 1  in which the engine is an electric motor.  
   
   
       16 . The tamping device of  claim 15  in which the electric motor is powered by a battery pack.  
   
   
       16 . The tamping device of  claim 15  in which the electric motor is powered by a battery pack.  
   
   
       17 . The tamping device of  claim 1  in which the engine is a 4-cycle gasoline engine.  
   
   
       18 . The tamping device of  claim 1  in which the eccentric drive comprises a crank that is offset from the drive shaft with the proximal end of connecting rod coupled to the crank.