| 摘要 |
FIELD: construction.SUBSTANCE: group of inventions relates to cutting tool assemblies used in mining and construction. Cutting tool assembly comprises a tooth holder with front portion, a rear portion, central opening forming a top bridge portion extending from top of front portion to top of rear portion, and a generally planar mounting surface between said front and rear portions, front portion of holder defining a front opening, which has a front end and axis of which is inclined relative to mounting surface, and rear portion defines rear opening in said front opening. Cutting tool assembly also comprises a cutting tooth, installed in front opening and having a rear end, to which there is access through rear opening made in rear portion of tooth holder.EFFECT: technical result consists in providing simple extraction of curved or broken cutting teeth of tooth holder.28 cl, 8 dwg |
