Three point blade that offsets as it angles

Abstract

A three point grader/snow scraper blade assembly has the ability to offset itself as the blade angles. The frame of the assembly is reversible and can be mounted from the front or the rear, providing a blade that can be manipulated to perform a desired task. The assembly includes a three point hitch mounted frame, an angle frame and a blade mount.

What is claimed is: 
     
         1 . A blade assembly comprising:
 a frame assembly formed from a back weldment having a first blade attachment mechanism formed therein, a rear weldment having a second blade attachment mechanism formed therein, and left and right link weldments interconnecting the back weldment with the front weldment; and   a dampener disposed between one of the left and right link weldments and the front weldment, the dampener configured to allow a blade to offset itself when angled.   
     
     
         2 . The blade assembly of  claim 1 , wherein the front and back weldments are each formed from two channel members interconnected with gusset bars. 
     
     
         3 . The blade assembly of  claim 2 , wherein the left and right link weldments each include two link channel members. 
     
     
         4 . The blade assembly of  claim 3 , wherein the two link channel members are pivotably attached to the front and back weldments. 
     
     
         5 . The blade assembly of  claim 1 , further comprising at least one spring extending from the frame to the blade, the at least one spring urging the blade in a generally vertical position. 
     
     
         6 . The blade assembly of  claim 6 , wherein the at least one spring includes two springs disposed on opposite sides of the frame assembly. 
     
     
         7 . The blade assembly of  claim 1 , further comprising a pin configured to lock a vertical configuration of the blade. 
     
     
         8 . A blade assembly comprising:
 a frame assembly formed from a back weldment having a first blade attachment mechanism formed therein, a rear weldment having a second blade attachment mechanism formed therein, and left and right link weldments interconnecting the back weldment with the front weldment;   a dampener disposed between one of the left and right link weldments and the front weldment, the dampener configured to allow a blade to offset itself when angled; and   at least one spring extending from the frame to the blade, the at least one spring urging the blade in a generally vertical position, wherein   the front and back weldments are each formed from two channel members interconnected with gusset bars;   the left and right link weldments each include two link channel members; and   the two link channel members are pivotably attached to the front and back weldments.   
     
     
         9 . The blade assembly of  claim 8 , wherein the at least one spring includes two springs disposed on opposite sides of the frame assembly. 
     
     
         10 . The blade assembly of  claim 8 , further comprising a pin configured to lock a vertical configuration of the blade.