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    • 15. 发明公开
    • ZAHNBÜRSTE SOWIE ZAHNBÜRSTENKOPF UND ZAHNPUTZBORSTE HIERFÜR
    • 牙刷牙刷刷头和牙齿鬃THEREFOR
    • EP2028969A1
    • 2009-03-04
    • EP07724359.0
    • 2007-04-19
    • Braun GmbH
    • DRIESEN, GeorgesKUNATH, IvoSTÖRKEL, UlrichSCHMID, Michael
    • A46D1/00A46B9/04
    • A46D1/00A46B3/16A46D1/0238A46D1/0269Y10T428/2973
    • The present invention relates to a tooth cleaning bristle which is formed as a monofilament and has a generated surface with a structured profile, preferably shaped like a longitudinal groove which, in the circumferential direction, has alternate projections and depressions. The invention also relates to a toothbrush head with a bristle support to which at least one such tooth cleaning bristle is attached and, finally, to a preferably electric toothbrush with such a toothbrush head. In order to be able simultaneously to satisfy the diverse requirements of a tooth cleaning bristle, the present invention envisages a special profile of the generated surface of the tooth cleaning bristles which makes it possible to fill the bristle support easily, and which prevents the bristles which are brought together in a bunch from interlocking and yet ensures an intensive cleaning action on the generated surface side. Thanks to the profile, the circumference of the tooth cleaning bristle has a specific relationship to the cross section surface of the bristle. According to the invention, the tooth cleaning bristle which is formed as a monofilament has a profile on the generated surface side which is designed such that the relationship of the circumference of the generated surface to the cross section surface of the tooth cleaning bristle is in the range of 30 mm-1 to 50 mm-1. The generated surface of the tooth cleaning bristle is thus significantly larger compared to a circular cylindrical bristle with a comparable cross section surface, and so the cleaning action on the generated surface side improves accordingly, and toothpaste can better stick to and come off the tooth cleaning bristles on the generated surface side. Nevertheless, despite the profile on the generated surface side, the tooth cleaning bristle is still able to be attached to a suitable bristle support in the anchor connection method.