Patent ID: 8875336
Filing Date: 2014-11-04
Classification: A46B,A61C

Abstract:
1. A brush section for an electrical toothbrush housing an electric drive, the brush section having a head portion comprising: a frame including a first plurality of contact elements supported within the frame; a movable contact element holder including a second plurality of contact elements supported within the movable contact element holder, the movable contact element holder being structured to receive a cleaning motion from the electric drive to have at least one freedom of motion relative to the first plurality of contact elements; an extension portion of the movable contact element holder arranged at a tip end of the head portion, with a gap disposed between the extension portion and the frame; and a rear gap between a rear portion of the movable contact element holder and the frame; wherein at least a first portion of the gap in a side periphery region of the head portion is smaller in width than a second portion of the gap in an interior region of the toothbrush head; and wherein the rear gap is smaller in width than the first portion of the gap.