Patent ID: 7222381
Filing Date: 2007-05-29
Classification: A61C

Abstract:
1. A toothbrush comprising: a handle containing an electric drive motor and having an engagement socket for a head section; a replaceable head section being an elongate structure having a driveable toothbrush head at one end and having a plug part which is engageable with the socket at its opposite end; the plug part having an end surface which when the plug part is engaged with the socket faces generally in the direction of the handle, and the socket having an end surface which faces generally in the direction of the head; wherein: the end surface of the plug part is resiliently deformable in the handle-head direction under the influence of pressure applied longitudinally to the end surface; one of either the end surface of the plug part or the end surface of the socket has a convexity thereon projecting along the head-handle direction, and the other has a concavity therein which receives the projection when the plug part is engaged with the socket.