Powered toothbrush having three dimensional rotational head...

Details Powered toothbrush having three dimensional rotational head... Powered toothbrush having three dimensional rotational head...

A - Human Necessities

61

C

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

Patent

CA 2413288

An electrically driven toothbrush having a rotatable drive shaft with an end, off-set from the central longitudinal axis of the drive shaft and lodged in a boring in a bristle carrier, which bristle carrier is orbitally secured within a socket in the toothbrush head. When the drive shaft rotates, the end describes a circle and drivingly engages the bristle carrier to actuate the bristle carrier in a three dimensional reciprocating side-to-side and rocking up-and-down motion.

L'invention concerne une brosse à dents électrique constituée d'un arbre d'entraînement rotatif pourvu d'une extrémité, décalée par rapport à l'axe longitudinal central de l'arbre d'entraînement et logée dans un alésage ménagé dans un porte-soies, lequel porte-soies est fixé de façon orbitale dans un évidement de la tête de la brosse à dents. Lorsque l'arbre d'entraînement tourne, ladite extrémité décrit un cercle et vient en prise avec le porte-soies, de manière à imprimer à ce dernier un mouvement alternatif gauche-droite et de basculement de haut en bas tridimensionnel.

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