Patent ID: 8661597
Filing Date: 2014-03-04
Classification: A61C

Abstract:
1. A brush head for an electric toothbrush, comprising: a neck connectable to a handle of the electric toothbrush, and a bristle carrier pivotally supported by a pivot support at the neck about a pivot axis extending transverse to a longitudinal axis of the neck, wherein the bristle carrier is provided with a drive joint connectable to a swivel element swiveling about a drive shaft axis substantially parallel to the longitudinal axis of the neck, the drive joint being radially spaced apart from the pivot axis of the bristle carrier and adapted to allow pivoting movement of the swivel element relative to the bristle carrier about a drive joint axis substantially parallel to the pivot axis of the bristle carrier, such that the pivot support provides for transverse movability of the bristle carrier relative to the pivot axis and/or of the pivot axis relative to the neck along a transverse axis extending transverse to the pivot axis, and that the drive joint is adapted to transmit driving forces of the swivel element to the bristle carrier in the direction of the transverse axis; and wherein the pivot axis is secured to the neck at a fixed position in a fixed angular orientation and tumble prevention means are provided for preventing the bristle carrier from tumbling, the tumble prevention means projecting from an outer surface of a wall of the neck through a through-hole and into the bristle carrier in a plane perpendicular to the pivot axis.