Patent ID: 7051776
Filing Date: 2006-05-30
Classification: B27G,Y10T

Abstract:
1. A rotary cutter for a wood planing machine, comprising: an elongated polygonal shaft that defines a rotation axis, that has axially extending blade-mounting surfaces parallel to and surrounding said rotation axis, and that is formed with threaded holes indented inwardly from each of said blade-mounting surfaces and aligned in an axial direction relative to said rotation axis, and blade-aligning studs projecting outwardly from each of said blade-mounting surfaces for aligning a blade during mounting of the blade on a respective one of said blade-mounting surfaces of said shaft, said blade-mounting surfaces being equidistant from said rotation axis, two adjacent ones of said blade-mounting surfaces defining an angle therebetween, said angles defined by said blade-mounting surfaces being equal; a plurality of elongated blade-fastening plates, each of which is attached to a respective one of said blade-mounting surfaces of said shaft, each of which is formed with a plurality of through-holes that are respectively registered with said threaded holes at the respective one of said blade-mounting surfaces, and each of which cooperates with the respective one of said blade-mounting surfaces to define a blade-receiving gap therebetween for receiving the blade therein; and a plurality of fastening screws, each of which extends through a respective one of said through-holes in a respective one of said blade-fastening plates and said blade-receiving gap and engages threadedly a respective one of said threaded holes in said shaft so as to fasten the blade to the respective one of said blade-mounting surfaces of said shaft upon tightening of said fastening screws.