Scaling assembly with pivotally mounted pick component

Abstract

A scaling apparatus comprises a hammer component and a pick component which includes a tooth. The apparatus also includes a mechanism for moving the pick component with respect to the hammer component to thereby impart a scaling force to and through the tooth. In a preferred embodiment of the invention, the pick component includes a pick body comprising a first pivot having a pivot axis and a tooth mounted on the pick body. In this embodiment of the invention, the hammer component includes a hammer housing and a second pivot mounted within the housing and adapted to pivotally engage the first pivot of the pick body. This embodiment of the invention also includes a mechanism for rotating the pick body relative to the hammer component so as to impart a scaling force.

1 . A scaling apparatus comprising: 
 (a) a pick component which includes: 
 (i) a pick body comprising a first pivot having a pivot axis;  
 (ii) a tooth mounted on the pick body;  
   (b) a hammer component which includes: 
 (i) a hammer housing;  
 (ii) a second pivot mounted within the housing and adapted to pivotally engage the first pivot of the pick body;  
   (c) an eccentric drive shaft which is rotatably mounted on the pick body;    (d) an eccentric plate which is mounted on the eccentric drive shaft in such a manner that rotation of the eccentric drive shaft will produce a force on the pick body that tends to move the pick body relative to the hammer component to apply a force through the tooth;    (e) a drive motor which is mounted on the pick body and adapted to rotate the eccentric drive shaft.    
   
   
       2 . The scaling apparatus of  claim 1  which includes: 
 (a) a boom on which the hammer housing is mounted;    (b) means for manipulating the boom.    
   
   
       3 . The scaling apparatus of  claim 1  wherein the hammer housing includes a vibration isolator that is adapted to cushion the impact of the pick body on the hammer component during recoil.  
   
   
       4 . The scaling apparatus of  claim 1  in which the pick body has an upper surface which includes a rocker profile.  
   
   
       5 . The scaling apparatus of  claim 1  which includes a biasing mechanism to urge the pick body and the hammer component apart.  
   
   
       6 . A scaling apparatus comprising: 
 (a) a pick component which includes: 
 (i) a pick body comprising a first pivot having a pivot axis;  
 (ii) a tooth mounted on the pick body;  
   (b) a hammer component which includes: 
 (i) a hammer housing;  
 (ii) a second pivot mounted within the housing and adapted to pivotally engage the first pivot of the pick body;  
   (c) a first eccentric rotation shaft which is rotatably mounted on the pick body;    (d) a first eccentric plate which is mounted on the first eccentric rotation shaft in such a manner that rotation of the first eccentric rotation shaft will produce a first force on the pick body that tends to move the pick body relative to the hammer component;    (e) a second eccentric rotation shaft which is rotatably mounted on the pick body;    (f) a second eccentric plate which is mounted on the second eccentric rotation shaft in such a manner that rotation of the second eccentric rotation shaft will produce a second force on the pick body that reinforces the first force;    (g) means for causing the first eccentric rotation shaft and the second eccentric rotation shaft to rotate in opposite directions, said means including a drive motor which is mounted on the pick body.    
   
   
       7 . A scaling apparatus comprising: 
 (a) a pick component which includes: 
 (i) a pick body comprising a first pivot having a pivot axis;  
 (ii) a tooth mounted on the pick body;  
   (b) a hammer component which includes: 
 (i) a hammer housing;  
 (ii) a second pivot mounted within the housing and adapted to pivotally engage the first pivot of the pick body;  
   (c) a first eccentric rotation shaft which is rotatably mounted on the pick body;    (d) a drive gear which is mounted on the first eccentric rotation shaft;    (e) a first eccentric plate which is mounted on the drive gear in such a manner that rotation of the first eccentric rotation shaft will produce a first force on the pick body that tends to move the pick body relative to the hammer component;    (f) a drive motor that is mounted so as to rotate the first eccentric rotation shaft;    (g) a second eccentric rotation shaft which is spaced from the first eccentric rotation shaft and rotatably mounted on the pick body;    (h) an idler gear that is mounted on the second eccentric rotation shaft so as to engage with the drive gear in such manner that rotation of the first eccentric rotation shaft by the drive motor will cause the second eccentric rotation shaft to rotate in a direction opposite to that of the first eccentric rotation shaft;    (i) a second eccentric plate which is mounted on the idler gear in such a manner that rotation of the second eccentric rotation shaft will produce a second force on the pick body that reinforces the first force.