Brush section for an electric toothbrush

Details Brush section for an electric toothbrush Brush section for an electric toothbrush

A - Human Necessities

61

C

A61C 17/26 (2006.01)

Patent

CA 2202256

The invention is directed to a brush section (1) for an electric toothbrush, which includes a mounting tube (2) in which a shaft (7) arranged in the direction of a longitudinal axis (3) is received. Two bristle carriers (14, 15) are mounted for rotation about associated brush axes (24, 25). Further, means are provided, in particular two connecting rods (30, 31), to effect coupling engagement of the shaft (7) with the two bristle carriers (14, 15), such that a motion (36) of the shaft (7) effects a rotary motion (37, 38) of the two bristle carriers (14, 15) about the two brush axes (24, 25) . The two brush axes (24,25) are arranged in a plane approximately at right angles to the longitudinal axis (3) and define between them an approximately right angle. In this arrangement, the motion of the shaft may be a rotary motion about the longitudinal axis (3) or a longitudinal motion in the direction of the longitudinal axis (3). Still further, the bristle carriers (14, 15) may be pivotally arranged by means of arms (60, 61), utilizing in particular the longitudinal axis (3) as pivot axis.

L'invention concerne un élément de brossage (1) pour une brosse à dents électrique, qui comprend un support tubulaire (2) dans lequel est monté un arbre (7) dans le sens d'un axe longitudinal (3). Deux porte-soies (14, 15) sont montés de manière à tourner autour d'axes de brosses (24, 25) associés. En outre, il est prévu des éléments, notamment deux bielles (30, 31), servant à accoupler l'arbre (7) et les deux porte-soies (14, 15), de manière qu'un mouvement (36) de l'arbre (7) entraîne un mouvement rotatif (37, 38) des deux porte-soies (14, 15) autour des deux axes de brosses (24, 25). Les deux axes de brosses (24, 25) sont placés sur un plan situé approximativement à angle droit par rapport à l'axe longitudinal (3) et forment approximativement un angle droit entre eux. Le mouvement de l'arbre peut être un mouvement rotatif autour de l'axe longitudinal (3) ou un mouvement longitudinal dans le sens de l'axe longitudinal (3). En outre, les porte-soies (14, 15) peuvent être montés pivotant à l'aide de bras (60, 61), l'axe longitudinal (3) servant notamment d'axe de pivotement.

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