BRUSH HEAD FOR ELECTRIC TOOTH BRUSH Russian patent published in 1999 - IPC

FIELD: medicine. SUBSTANCE: brush head 1 for electric tooth-brush has tube 2 containing shaft 7 positioned along longitudinal axis 3. Two bristle holders 14, 15 are mounted for rotation around interacting brush axles 24, 25. Two connecting tie-rods 30, 31 are provided for engagement of shaft 7 with two bristle holders 14, 15 so that motion 36 of shaft 7 causes swinging motion 37, 38 of two bristle holders 14, 15 around brush axles 24, 25. Two axles 24, 25 of brush are positioned in plane at approximately right angles to longitudinal axis 3. They form approximately right angle with respect to each other. Due to this construction shaft motion may be either swinging about longitudinal axis 3 or longitudinal in direction of the same axis 3. In addition, bristle holders 14, 15 may be mounted for turning by means of brackets 60, 61 with use of longitudinal axis 3 as axis of turn. EFFECT: improved cleaning effect. 21 cl, 14 dwg