A - Human Necessities – 46 – B
Patent
A - Human Necessities
46
B
A46B 9/04 (2006.01) A46B 9/06 (2006.01) A46D 1/00 (2006.01)
Patent
CA 2742912
The invention is directed to a bristle for a toothbrush, said bristle being comprised of a plastic monofilament, with the preferably cloverleaf-shaped bristle body having several longitudinal ribs arranged in star shape and projecting laterally from a core section of the bristle body. The invention is also directed to a brush head for an electric toothbrush having at least one bristle tuft with at least one such bristle as well as to an electric toothbrush having such a brush head. According to the invention, the bristle of the type initially referred to is configured to be self-fanning in such a manner that the cleaning forces acting on the bristles during normal brushing cause the bristle to split open at its free end. As a result, the need to use complex splitting methods and corresponding splitting machines in the manufacture of the toothbrush can be obviated.
L'invention concerne un poil destiné à une brosse à dents, ce poil étant composé d'un monofilament en plastique. Le corps du poil, de préférence en forme de feuille de trèfle, comporte plusieurs nervures longitudinales disposées en étoile et faisant saillie latéralement par rapport à une section centrale du corps du poil. L'invention concerne également une tête destinée à une brosse à dents électrique, cette tête présentant au moins une touffe de poils comprenant au moins un poil susmentionné, ainsi qu'une brosse à dents électrique comportant ladite tête. Selon l'invention, le poil du type susmentionné est conçu pour s'étaler en éventail de telle sorte que les forces de nettoyage exercées sur les poils lors d'un brossage normal entraînent une ouverture du poil à son extrémité libre. L'invention permet ainsi de faire l'économie de procédés de séparation complexes et de machines de séparation correspondantes pour la fabrication de la brosse à dents.
Driesen Georges
Schmid Michael
Braun Gmbh
Dimock Stratton Llp
LandOfFree
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