Patent ID: 7832435

Claim:
A cutter head of a planer machine, comprising: an elongated mount body which extends along a rotating axis in a longitudinal direction, which terminates at front and rear ends, and which has a surrounding outer wall surface that surrounds the rotating axis, said surrounding outer wall surface including a flat mount region which extends between said front and rear ends, which extends in a first transverse direction to terminate at a lateral end that extends in a direction parallel to the rotating axis, and which is distant from the rotating axis by a first length, a flat counter region which extends between said front and rear ends, and which is symmetrical to said mount region with respect to the rotating axis, and left and right rounded regions which interconnect said flat mount and counter regions, which are disposed opposite to each other in the first transverse direction, and which are configured to be symmetrical to each other with respect to the rotating axis; front and rear journalled couplers which extend respectively from said front and rear ends along the rotating axis, and which are revolved so as to rotate said elongated mount body about the rotating axis; an elongated cutter blade having an elongated cutting edge which extends in the longitudinal direction, and an elongated blade body which extends in the longitudinal direction, and which is opposite to said elongated cutting edge in the first transverse direction such that, when said elongated blade body is secured to and abuts against said flat mount region, said elongated cutting edge extends beyond said lateral end for performing a cutting operation when said elongated mount body is rotated about the rotating axis; an elongated press member which has an elongated tightened body extending in the longitudinal direction, and an elongated pressing strip opposite to said elongated tightened body in the first transverse direction such that, when said elongated tightened body is tightened against said flat mount region, said elongated pressing strip is brought to press said elongated blade body against said flat mount region, thereby ensuring firm abutment of said elongated blade body against said flat mount region when said elongated cutting edge is performing a cutting operation; and a counterweight which is disposed on said flat counter region, and which is configured to balance the combined weights of said elongated cutter blade and said elongated press member so as to smooth rotation of said elongated mount body.