Patent ID: 9038225
Filing Date: 2015-05-26
Classification: A61C,Y10T

Abstract:
1. A toothbrush comprising: a brushing attachment that includes a main body portion that includes a hollow neck and a head, wherein the neck includes an attachment opening and the head includes a cleaning member opening, a drive shaft positioned in the neck, wherein the drive shaft includes a spline drive having a plurality of splines on one end and gearing on the opposite end, wherein the spline drive is positioned adjacent the attachment opening in the neck, a cleaning member drive mechanism matingly engaged with the gearing on the drive shaft, and a cleaning member extending through the cleaning member opening in the head and operatively associated with the cleaning member drive mechanism, a handle that includes a main body portion that houses a motor, and a brushing attachment connection receiver extending upwardly from the main body portion that is at least partially received in the attachment opening in the brushing attachment, wherein the brushing attachment connection receiver includes a recess defined therein that receives a drive hub therein, wherein the drive hub includes a grooved recess, said grooved recess having a plurality of grooves, an incline section and a straight section with a smaller outer diameter than the outer diameter than said incline section, and wherein each of the grooves are defined by a circumferential incline surface and two non-circumferential incline surfaces; wherein individual splines are received in individual grooves when said grooved recess receives the spline drive.