| 摘要 |
A root head cleaner differs from the known technical solutions in that additional cleaning elements are made as two planes, each of which is formed by three rotary plates, which are mounted on the generating surface of a driving horizontal shaft in cylindrical hinges in such a manner that in the cross-section they together have a V-shaped profile, and their front ends are spaced for distances, which are larger than the distances between the rear ends thereof. On the axles of the cylindrical hinges torsional springs are mounted and the internal surfaces of the rotary plates comprise fixed elastic projections shaped as cones. |
