Diamond blade having rim type cutting tip for use in grinding or cutting apparatus

Abstract

A diamond blade having a rim type cutting tip for an apparatus such as cutting saw machine having a structure which rim type cutting tip is able to produce cutting chips with relative large size during the cutting operation so that those chips are easily discharged outside with reducing the friction with the rim type cutting tip of the diamond blade, thereby it increases cutting ability and prevents the chips from dispersing in the air and from causing the bad affects to user's health and the contamination of environment. The diamond blade comprises a wheel body and a rim type cutting tip for cutting or grinding workpieces, which is disposed on the circumference of the wheel body.

1 - 8 . (canceled)  
   
   
       9 . The diamond blade of claim  1  further comprising: 
 said non-diamond portion having a plurality of depressed portions, the depressed portions being disposed at predetermined intervals to cross each other on the inner and outer surfaces of the non-diamond portion; and    a plurality of diamond layers longitudinally disposed parallel with the rotation direction of the diamond blade respectively on depressed bottom surfaces of the depressed portions, and on the inner and outer surfaces of the non-diamond portion divided by the depressed portions of the non-diamond portion, wherein the depressed bottom surfaces and the inner and outer surfaces are parallel to the rotation direction of the diamond blade.    
   
   
       10 . The diamond blade as claimed in  claim 9 , wherein the bottom surfaces of the depressed portions of the non-diamond portion are positioned in a plane between the inner and outer surfaces of the non-diamond portion.  
   
   
       11 . The diamond blade as claimed in  claim 9 , wherein the depth of the depressed bottom surfaces of the depressed portions surfaces of the non-diamond portion is less than a half of the thickness of the non-diamond portion.  
   
   
       12 . The diamond blade as claimed in  claim 9 , wherein the diamond particles in each diamond layer of the rim type cutting tip are distributed in a predetermined pattern or arrangement.  
   
   
       13 . The diamond blade as claimed in  claim 12 , wherein the diamond particles in each diamond layer of the rim type cutting tip are distributed in a single layer with grid shaped spots.  
   
   
       14 . The diamond blade as claimed in  claim 12 , wherein the diamond particles in each diamond layer of the rim type cutting tip are distributed in a double layer with grid shaped spots.  
   
   
       15 . The diamond blade as claimed in  claim 9 , wherein the diamond particles in each diamond layer of the rim type cutting tip are randomly distributed.