Patent ID: 6907636

Claim:
An electric dental care device with a care head oscillatingly driven about a rotational axis, the electric dental care device comprising: a rotationally driven driving shaft with a driven end, said driven end having a driving element disposed eccentrically with respect to a rotational axis of the driving shaft; a force converter having a gymbal support, said support comprising two gymbal bearings creating a first and second rotational axis each disposed such that the axes form a right angle to each other and intersect virtually in one point; the first gymbal bearing comprising: a mounting attached to the care head and rotatably supported about the second rotational axis; a conversion element rotatably supported by the second gymbal bearing in the mounting about the first axis and having a recess shaped to receive the driving element; the driving element engaged into the recess of the conversion element and supported thereby, thereby converting a rotational driving force of the driven driving shaft into an oscillatory turning movement of the care head.