Patent ID: 6386250
Filing Date: 2002-05-14
Classification: B27G,Y10T

Abstract:
A helical knife assembly comprising:a plurality of blade holders, each of the blade holders having two opposite step flanges, a blind hole, and a threaded groove communicating with the blind hole, a positioning block having a slant recess and two apertures, an oblong blade having two positioning holes, a pressing block having a bevel and an inner threaded hole, a hollow double end bolt having a first outer thread and a second outer thread, the positioning block inserted in the corresponding blade holder, the oblong blade disposed on the positioning block, two pins inserted in the apertures of the positioning block and the positioning holes of the oblong blade, the first outer thread of the hollow double end bolt inserted in the threaded groove of the corresponding blade holder, the second outer thread of the hollow double end bolt engaging with the inner threaded hole of the pressing block, and the bevel inserted in the slant recess of the positioning block.