Patent ID: 8978527
Filing Date: 2015-03-17
Classification: B23B,B23Q,Y10S,Y10T

Abstract:
1. A long shaft bit with a vibration suppressing structure, comprising: a tip fixing part disposed at a front end of the long shaft bit and coupled to a cutting tip; a shank which is connected to the tip fixing part; and a bit fixing part which is connected to the shank, the bit fixing part for fixing the bit, the vibration suppressing structure being disposed on an outer surface of the shank and comprising a vibration absorbing body disposed on the outer surface of the shank in a multi-layer and a hollow wire rod spirally coiled in a second absorption layer, a third absorption layer, and an outermost layer of the vibration absorbing body, whereby the vibration suppressing structure absorbs vibration and prevents resonance during cutting process for a cutting subject.