ApplicationNo. 06/256643 filed on 04/23/1981
US Classes:172/540, Tool has circumferentially spaced teeth, tines, blades or the like172/120, Disk or planar cutter (e.g., saw, etc.)175/426, Insert299/39.9, And having rotatable cutting element37/94Transverse axis
ExaminersPrimary: Johnson, Richard J.
International ClassesA01B 33/00 (20060101)
A01B 33/10 (20060101)
A01C 5/00 (20060101)
A01C 5/06 (20060101)
AbstractAn improved cutter wheel that is particularly useful with tilling apparatus for sod seeding purposes. The cutter wheel is mounted for rotation by a drive structure that includes a drive shaft. The cutter wheel includes a central disk portion with an outer periphery defining a plurality of equally spaced slots, each for receiving a tip-holding insert. A bullet-shaped tungsten carbide tip is soldered or brazed to the tip-holder and the holder is welded to the disk. The disk periphery is shaped to allow cutting clearance for the tip, to protect the tip from breaking off, and to provide rear support for the tip-holder. The angle at which the tip is connected to the holder is chosen so that the brazed or soldered joint is loaded primarily in compression as the wheel cuts through the soil.