Electric toothbrush having a flexible drive shaft

Details Electric toothbrush having a flexible drive shaft Electric toothbrush having a flexible drive shaft

A - Human Necessities

61

C

A61C 17/22 (2006.01) A61C 17/26 (2006.01) A61C 17/34 (2006.01)

Patent

CA 2556449

An electric toothbrush is disclosed comprising a body, a head, and a neck extending therebetween. A motor, drive train, and one or more batteries impart motion to the collection of movable bristles. A spring component is provided in the drive train that is configured to absorb excessive loads that would otherwise be transmitted to the motor. Reducing or eliminating application of such excessive loads on the motor extends battery life.

L'invention concerne une brosse à dents électrique comprenant un corps, une tête, et un manche s'étendant entre le corps et la tête. Un moteur, un train d'entraînement, et au moins une batterie permettent de conférer un mouvement à l'ensemble des poils mobiles de la brosse. Un composant de ressort est situé dans le train d'entraînement et configuré pour absorber des charges excessives qui pourraient être transmises au moteur. L'application de cette réduction ou l'élimination de telles charges excessives sur le moteur permettent de prolonger la durée de vie de la batterie.

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