Adapter for cutting tooth

Abstract

An adapter for use in mounting a cutting tooth onto a mounting block. The adapter has two opposed sides with a first groove on one side for receiving a leading portion of the mounting block and a second groove on the other side opposite the one side for receiving a portion of the cutting tooth. The first and second grooves are aligned. The adapter has a fastening hole there through in the grooves, the hole transverse to the sides of the adapter. The fastening hole is used in fastening the tooth to the mounting block with the adapter sandwiched between the tooth and mounting block.

1 . An adapter for use in mounting a cutting tooth onto a mounting block, the adapter having two opposed sides with a first groove on one side for receiving a leading portion of the mounting block and a second groove on the other side opposite the one side for receiving a portion of the cutting tooth, the first and second grooves aligned; the adapter having a fastening hole there through in the grooves, the hole transverse to the sides, for use in fastening the tooth to the mounting block with the adapter sandwiched between. 
     
     
         2 . An adapter as claimed in  claim 1  wherein the adapter has opposed top and bottom ends, the grooves extending over the length of the adapter between its ends. 
     
     
         3 . An adapter as claimed in  claim 2  wherein the second groove tapers from the top end to the bottom end. 
     
     
         4 . An adapter as claimed in  claim 1  wherein the adapter is made of steel having a hardness ranging between 25 and 35 RC. 
     
     
         5 . An adapter as claimed in  claim 2  wherein the adapter is made of steel having a hardness ranging between 25 and 35 RC. 
     
     
         6 . An adapter as claimed in  claim 3  wherein the adapter is made of steel having a hardness ranging between 25 and 35 RC. 
     
     
         7 . A cutting tooth mounting assembly for a cutter having a cylindrical cutting head, the assembly having a mounting block with a bottom side for mounting against the surface of the cutting head and a front side; a plate-like cutting tooth having a mounting portion with a flat side and a cutting portion bent from one end of the mounting portion terminating in a cutting edge; an adapter having two opposed sides with a first groove on one side adapted to snugly receive a front portion of the block with the front side of the block against the bottom of the first groove and a second groove on the other side opposite the one side to snugly receive part of the mounting portion of the tooth with its flat side against the bottom of the second shallow groove; the grooves aligned to align the flat side of the tooth with the front side of the block; and a mounting bolt holding the tooth securely against the adapter and the adapter securely against the mounting block. 
     
     
         8 . A mounting assembly as claimed in  claim 7  wherein the block has a step extending forwardly from the bottom of the front side of the block toward the front of the bottom side, the mounting portion of the cutting tooth, and the adapter, resting on the step. 
     
     
         9 . A mounting assembly as claimed in  claim 8  wherein there is a stop on the step spaced from the front side of the block, the mounting portion of the cutting tooth and the adapter snug between the stop and the front side of the block. 
     
     
         10 . A mounting assembly as claimed in  claim 7  wherein the adapter has opposed top and bottom ends, the grooves extending over the length of the adapter between its ends. 
     
     
         11 . A mounting assembly as claimed in  claim 8  wherein the adapter has opposed top and bottom ends, the grooves extending over the length of the adapter between its ends. 
     
     
         12 . A mounting assembly as claimed in  claim 7  wherein the width of the tooth tapers from its cutting edge to its other end and the second groove in the adapter also tapers from the top to the bottom. 
     
     
         13 . A mounting assembly as claimed in  claim 8  wherein the width of the tooth tapers from its cutting edge to its other end and the second shallow groove in the adapter also tapers from the top to the bottom. 
     
     
         14 . A mounting assembly as claimed in  claim 7  wherein the hardness of the adapter is substantially less than the hardness of the mounting block and the cutting tooth. 
     
     
         15 . A mounting assembly as claimed in  claim 8  wherein the hardness of the adapter is substantially less than the hardness of the mounting block and the cutting tooth. 
     
     
         16 . A mounting assembly as claimed in  claim 7  wherein the hardness of the adapter is between 25 and 35 RC; the hardness of the cutting tooth is between 45 and 47 RC and the hardness of the mounting block is between 40 and 42 RC. 
     
     
         17 . A mounting assembly as claimed in  claim 8  wherein the hardness of the adapter is between 25 and 35 RC; the hardness of the cutting tooth is between 45 and 47 RC and the hardness of the mounting block is between 40 and 42 RC.