Patent ID: 7635242

Claim:
A beveling machine easily controlling the extent of bevel, comprising: a cutting unit housing ( 10 ) inside which a rotary cutting unit ( 8 ) is rotatively positioned and which includes a fixed spline ( 12 ) formed on an outer surface of an upper part thereof, an adapter ( 20 or 20 a ) which is connected to the upper part of the cutting unit housing ( 10 ) by a screw and which is selectively connected to a tool for supplying a rotation force to the rotary cutting unit ( 8 ); a ruler ( 30 ) with graduations which is fitted between an outward flange ( 26 ) formed on an outside of the adapter ( 20 or 20 a ) and the cutting unit housing ( 10 ); a transfer guiding holder ( 40 ) which is connected to an outside of the cutting unit housing ( 10 ) by a screw, so as to be up or down transferred, and which includes a rotary spline ( 41 ) formed on an outer surface thereof; a supporting holder ( 50 ) which is connected to a lower part of the transfer guiding holder ( 40 ) by a screw and which includes a guide plate ( 51 ) positioned under the supporting holder ( 50 ); a bevel-extent controlling unit ( 60 ) which includes a rotary spline ( 61 ) formed on an inner surface thereof and which controls and maintains the extent of bevel while being selectively transferred by upward or downward sliding, wherein the rotary spline ( 61 ) of the bevel-extent controlling unit is connected to the rotary spline ( 41 ) of the transfer guiding holder ( 40 ) and the fixed spline ( 12 ) of the cutting device housing ( 10 ); and an elastic member ( 70 ) which is fitted between the bevel-extent controlling unit ( 60 ) and the supporting holder ( 50 ), and supplies elasticity to the bevel-extent controlling unit ( 60 ).