Patent ID: 7150061

Claim:
An electric toothbrush, comprising: a neck extending in a longitudinal direction of the toothbrush, a head at a remote end of the neck, a handle at a proximal end of the neck, an electric motor located within the handle, a tuft block mounted to the head in a manner allowing pivotal oscillation thereof about a tuft block axis substantially normal to the longitudinal direction of the neck, a primary rocker arm extending longitudinally within the handle and/or neck and pivoting about a primary rocker arm axis substantially parallel to the tuft block axis, a proximal end of the primary rocker arm being driven by the electric motor, and a secondary rocker arm extending longitudinally within the neck and pivoting about a secondary rocker arm axis substantially parallel to the tuft block axis, a distal end of the secondary rocker arm driving the tuft block and a proximal end of the secondary rocker arm being driven by the primary rocker arm.