Rotary toothbrush

A - Human Necessities – 46 – B

Patent

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Details

A46B 13/02 (2006.01) A61C 17/24 (2006.01)

Patent

CA 2078330

A powered toothbrush is provided with a pair of disc-like rotary brushes (9) mounted for rotation about an axis (28) generally perpendicular to the length of the brush. The rotary brushes (9) are in axially spaced relationship and are provided with inwardly directed bristles (92). Between the rotary brushes, upper and lower brushes (6, 8) are mounted above and below the axis of rotation for linear reciprocating motion generally perpendicular to that axis. The upper brush (8) has upwardly directed bristles (80), and the linear brushes (6, 8) are mounted to the rotary brushes (9) so as to be brought into reciprocal. Linear movement when the rotary brushes are reciprocated angularly. Reciprocal motion can then be applied to one of the linear brushes (6, 8, or to the rotary brushes (9), in order to bring the entire mechanism into reciprocal motion.

Brosse à dents mécanique comprenant une paire de brosses rotatives en forme de disque (9) montées de manière à tourner autour d'un axe (28) généralement perpendiculaire à la longueur de la brosse. Les brosses rotatives (9) sont espacées de manière axiale et sont pourvues de poils orientés vers l'intérieur (92). Entre les brosses rotatives, des brosses supérieure et inférieure (6, 8) sontmontées au-dessus et au-dessous de l'axe de rotation pour permettre un mouvement linéaire de va-et-vient dans une direction pratiquement perpendiculaire à cet axe. La brosse supérieure (8) possède des poils orientés vers le haut (80) alors que les brosses (6, 8) sont montées sur les brosses rotatives (9) de manière à effectuer un mouvement linéaire de va-et-vient lorsque les brosses rotatives effectuent ce même mouvement avec un angle déterminé. Le mouvement peut alors s'exercer sur une des brosses linéaires (6, 8) ou sur les brosses rotatives (9) afin de communiquer un mouvement de va-et-vient au mécanisme tout entier.

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