Importance

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Abstract

The present invention relates to an electric toothbrush having a handpiece, a bristle holder which is arranged on a head portion of the handpiece and is rotatable about an axis of rotation of the bristle holder, and a drive mechanism for the bristle holder, wherein the drive mechanism includes a motor which is arranged on the handpiece, and a transmission member which transfers a driving motion from the motor to the bristle holder. According to the invention, a drive rocker is provided as transmission member, and is arranged to rock in multiple axes and is driven by the motor such that it approximately traverses a double conical path. The connection between the drive rocker and the bristle holder is realised in jointed manner about an articulated axis that is parallel to the bristle holder's axis of rotation. For easy assembly, and space-saving attachment of the motor, a motor-supporting chassis is provided that may be inserted into the toothbrush hosing section and attached thereto for supporting the motor, wherein the chassis together with the attached motor may be inserted into the toothbrush housing through a frontal opening in the corresponding toothbrush housing section lengthwise relative to the toothbrush, and may be secured thereto.

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First Claim