ELECTRIC ACTIVE TOOTHBRUSH (EAT)

摘要

To provide an electric toothbrush (20), with a battery (21), drive motor (24), drive shaft (25), and a rotatable sealed disc (26), based inside a sealed casing (22) inside the handle (23) of the brush (20), while an eccentric rotatable semi- flexible arm (27) is fixed from one side on the sealed disc (26) near its edge, and fixed from its other side to the brush head (28). The drive shaft (25) rotates the disc (26), to rotate the arm (27) to rotate the brush head (28) in a circular path, but without changing the direction of the bristles of the brush head (28), such that the brush head (28) rotates toward the teeth lower side, and lets its bristle (29) applies a little pressure against the teeth crown while crossing it, then it rotates away from the teeth, to move down again, then moves toward the teeth gum, completing one circular rotation, and so on, simulating perfectly an actual manual brushing of the teeth.