Electric toothbrush

A - Human Necessities – 46 – B

Patent

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Details

A46B 13/02 (2006.01)

Patent

CA 2529773

An object is to provide an electric toothbrush superior in plaque removal, producible at low costs, and adapted to be easily utilized even by a patient with gingivitis. In an electric toothbrush (10) making brushing possible by linearly reciprocating a hair-planted section (31), the product of the distance (mm) of travel of the hair bundle of the hair-planted section (31) and the frequency (times) of reciprocatory vibration per minute is set in the range of 3000 - 9000. Further, the distance ((x) mm) of travel of the hair bundle of the hair-planted section (32) and the frequency ((y) times) of reciprocatory vibration per minute are set in a range which satisfies the following equation. Y = ax + b where a = -3000, 10000 <= b <= 12500, x > 0

L'invention vise à fournir une brosse à dents électrique supérieure en termes d'élimination de plaque, que l'on peut obtenir à faibles coûts et apte à être utilisée facilement même par un patient souffrant de gingivite. Dans une brosse à dents électrique (10) permettant le brossage de dents par alternance linéaire d'une section de soies (31), le produit de la distance (mm) du trajet des soies de la section (31) et la fréquence (fois) de vibration alternative par minute est définie entre 3 000 et 9 000. Par ailleurs, la distance ((x)mm) du trajet des soies de la section (32) et la fréquence ((y)fois) de vibration alternative par minute sont définies dans une fourchette correspondant à l'équation suivante Y=ax+b où a= -3 000, 10 000 <= b <= 12 500, x > 0.

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