Soil Treating Tool With Hardened Cutting Element

Abstract

A soil working tool for an agricultural machine includes a carrier that comprises a cutting region having a cutting edge, and one or more hard-material elements being arranged in the cutting region. The hard-material element is a cutting element that forms at least a part of the cutting edge.

1 . A soil working tool for an agricultural machine, comprising:
 a carrier having a front side and a rear side, the carrier also having an end face, the carrier having a receptacle defined in the front side adjacent the end face; and   at least one cutting element including a mounting piece received in the receptacle and an extension protruding from the mounting piece, the extension at least partially covering the end face of the carrier, the cutting element having a cutting edge, the cutting element being attached to the carrier by bonding of a flat surface of the cutting element to a flat surface of the carrier, the cutting element being formed of a hard material harder than the carrier; and   wherein the extension of the cutting element is supported by and bonded to the end face of the carrier.   
     
     
         2 . The tool of  claim 1 , wherein:
 the cutting element includes a deflection surface that transitions flush into the front side of the carrier.   
     
     
         3 . The tool of  claim 1 , wherein:
 the cutting edge has a rounding radius in a range of between 0.1 mm and 15 mm.   
     
     
         4 . The tool of  claim 1 , wherein:
 the cutting element includes a forward cutting surface, and the extension of the cutting element includes an exposed surface inclined at an angle in a range of from 20° to 70° with respect to the forward cutting surface.   
     
     
         5 . The tool of  claim 4 , wherein:
 the cutting edge is a rounded cutting edge and forms a transition between the forward cutting surface and the exposed surface of the extension.   
     
     
         6 . The tool of  claim 1 , wherein:
 the at least one cutting element comprises a plurality of cutting elements arranged side by side.   
     
     
         7 . The tool of  claim 1 , further comprising:
 one or more hard-material coverings arranged on the front side of the carrier.   
     
     
         8 . The tool of  claim 7 , wherein:
 the hard-material coverings are received in recesses in the front side of the carrier.   
     
     
         9 . The tool of  claim 1 , wherein the cutting element is bonded to the carrier by soldering. 
     
     
         10 . The tool of  claim 1 , wherein the cutting element is bonded to the carrier by adhesive bonding. 
     
     
         11 . The soil working tool of  claim 1 , wherein the extension of the cutting element terminates at or above an intersection of the end face of the carrier and the rear side of the carrier. 
     
     
         12 . The soil working tool of  claim 1 , wherein the hard material of the cutting element comprises cemented carbide. 
     
     
         13 . A soil working tool for an agricultural machine, comprising:
 a carrier including a cutting region; and   one or more L-shape cutting elements made of a hard material harder than the carrier, each cutting element having a cross section defined in an L-shape having a longer mounting piece and a shorter extension, the mounting piece of each cutting element being mounted on the cutting region of the carrier, the extension of each cutting element being supported by the carrier, each cutting element including a cutting edge defined at a junction of the mounting piece and the extension.   
     
     
         14 . The soil working tool of  claim 13 , wherein:
 the carrier includes in the cutting region a receptacle; and   the extension of each cutting element is bonded to the carrier in the receptacle.   
     
     
         15 . The soil working tool of  claim 14 , wherein:
 the carrier includes a front side; and   the mounting piece of each cutting element includes a deflection surface that transitions flush or in a manner protruding thereabove, into the front side of the carrier.   
     
     
         16 . The soil working tool of  claim 13 , wherein:
 the cutting element forms a rounded cutting edge.   
     
     
         17 . The soil working tool of  claim 16 , wherein:
 the rounded cutting edge has a radius in a range of from 0.1 mm to 15 mm.   
     
     
         18 . The soil working tool of  claim 13 , wherein:
 the mounting piece of each cutting element includes a deflection surface; and   the extension of each cutting element includes an exposed surface inclined with respect to the deflection surface at an angle in a range of from 20° to 70°.   
     
     
         19 . The soil working tool of  claim 18 , wherein:
 the cutting edge of each cutting element forms a transition between the deflection surface of the mounting piece and the exposed surface of the extension.   
     
     
         20 . The soil working tool of  claim 13 , wherein:
 the one or more cutting elements comprise two or more cutting elements arranged next to one another.