A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
A61C 17/22 (2006.01) A46D 1/00 (2006.01)
Patent
CA 2522103
The invention relates to a brush head (3) for an electric toothbrush with a bristle carrier (4), in which bristles (5, 6) which are set in motion during the operation of the electric toothbrush are anchored. According to the invention, the bristles are at least partly pointed filaments (5), which are arranged on the bristle carrier (4) in such a way that, during the operation of the electric toothbrush, their tips (5a) cover at most a predetermined maximum path d max. This advantageously succeeds in providing a toothbrush with an improved cleaning effect, in particular of the spaces between the teeth and the smallest structures on the tooth surface, while minimizing the mechanical loading, and consequently the wear, of the pointed filaments (5). The invention also relates to an electric toothbrush with such a brush head (3) and to a production method for such a brush head (3).
L'invention concerne une tête (3) destinée à une brosse à dents électrique, comportant un support de poils (4) dans lequel des poils (5, 6) sont ancrés, lesdits poils étant mis en mouvement lors de l'utilisation de la brosse à dents électrique. Selon l'invention, les poils se présentent au moins partiellement sous la forme de filaments pointus (5) disposés de telle manière sur le support de poils que leurs pointes (5a) parcourent au plus un chemin maximal prédéfini d¿max ?lors de l'utilisation de la brosse à dents électrique. Ainsi, la brosse à dents électrique selon l'invention présente une meilleure efficacité de brossage, en particulier dans les interstices dentaires et les plus petites structures de la surface des dents, la contrainte mécanique et donc l'usure des filaments pointus (5) étant par ailleurs minimisées. L'invention concerne par ailleurs une brosse à dents électrique et un procédé de fabrication d'une telle tête de brosse à dents (3).
Fischer Franz
Gross Peter
Gowling Lafleur Henderson Llp
Trisa Holding Ag
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