Scarifier

Abstract

A scarifier is provided with a floating axle 16 which allows the head 22 of the unit to follow the contour of the to-be-ground surface. The floating axle 16 will allow the two large outboard wheels 46 to guide the unit, but still maintain pressure on the smaller guide wheels 50 . The floating axle 16 can also be locked to compensate for extremely uneven conditions.

1 . A scarifier for grinding an removal material from a surface, said scarifier comprising:
 a cart, said cart comprising:
 at least one rear wheel rotatably attached to said frame and having an axis of rotation; 
 at least one front wheel rotatably attached to said frame and having an axis of rotation; and 
 a frame having front and rear portions; said portions being hinged to one another along an axis of articulation, said axis of articulation being generally parallel to at least one of said axes of rotation, said at least one rear wheel being attached to said rear portion and said at least one front wheel being attached to said front portion; 
   a cutter assembly adjustably attached to said cart front portion; and   handlebars attached to said cart rear portion.   
     
     
         2 . The scarifier of  claim 1  wherein said scarifier may be moved between an operating position wherein said cutter assembly engages said surface and a transport position wherein said cutter assembly is spaced from said surface by pivoting along said axis of articulation. 
     
     
         3 . The scarifier of  claim 2  further comprising means for locking said frame into said transport position. 
     
     
         4 . The scarifier of  claim 1  further comprising means to adjust the position of said cutter assembly relative to said surface. 
     
     
         5 . The scarifier of  claim 1  further comprising means to connect to a propulsion unit. 
     
     
         6 . The scarifier of  claim 1  further comprising at least one guide wheel rotatably attached to said cutter assembly. 
     
     
         7 . The scarifier of  claim 1  wherein said wheels are filled with urethane.