Palm-held electric bath massage brush

Abstract

An electric bath massage brush includes a hand-sized casing, a vibrating device and a control circuit device. The casing defines a massage surface at one side. The vibrating device is disposed within the casing and configured for imparting vibration and motion to the massage surface of the casing. Specifically, the vibrating device is disposed within the casing and includes a motor and an eccentric cam. The eccentric cam is connected to one end of a drive shaft of the motor for vibrating the massage surface upon rotation of the drive shaft. The control circuit device is also disposed within the casing and has a control circuit electrically coupled to the motor of the vibrating device for control the rotation of the drive shaft of the motor.

What is claimed is: 
     
         1 . An electric bath massage brush, comprising:
 a hand-sized casing having a massage surface at a front thereof;   a vibrating device disposed within the casing and including a motor and an eccentric cam connected to one end of a drive shaft of the motor for vibrating the massage surface upon rotation of the drive shaft; and   a control circuit device disposed within the casing and having a control circuit electrically coupled to the motor of the vibrating device for control the rotation of the drive shaft of the motor.   
     
     
         2 . An electric bath massage brush as recited in  claim 1 , wherein the control circuit device further includes a power supply and a rechargeable power source; the power supply has one end connected to the rechargeable power source, and the other end to be connected to an outer power source; and the rechargeable power source is connected to the control circuit for energizing the motor. 
     
     
         3 . An electric bath massage brush as recited in  claim 2 , wherein the control circuit device further includes a warning lamp disposed on the casing for indicating whether the power supply is shorted. 
     
     
         4 . An electric bath massage brush as recited in  claim 2 , wherein the rechargeable power source includes a charging/discharging circuit and a battery; and the charging/discharging circuit has one end connected to the battery and the other end to the power supply in order to charge the battery. 
     
     
         5 . An electric bath massage brush as recited in  claim 4 , further comprising a docking station having a receptacle for receiving the casing and charging the battery in the casing. 
     
     
         6 . An electric bath massage brush as recited in  claim 5 , wherein the docking station has a plurality of charging contacts disposed in the receptacle to be in contact with electrode contacts of the power supply when the casing is inserted in the receptacle of the docking station. 
     
     
         7 . An electric bath massage brush as recited in  claim 6 , wherein the docking station further includes a power input connector electrically coupled to the charging contacts of the docking station. 
     
     
         8 . An electric bath massage brush as recited in  claim 7 , wherein the power input connector of the docking station is a USB port. 
     
     
         9 . An electric bath massage brush as recited in  claim 1 , wherein the casing includes a case body, a lid covering an opening of the case body, and a sealing washer disposed in between the case body and the lid to seal any gap between the case body and the lid. 
     
     
         10 . An electric bath massage brush as recited in  claim 1 , wherein the casing includes a case body and a lid; the case body defines at its front said massage surface and at its rear an opening that is covered by the lid, and the case body is integrally formed at the massage surface with a plurality of bristles. 
     
     
         11 . An electric bath massage brush as recited in  claim 10 , wherein the bristles comprise a silicon material. 
     
     
         12 . An electric bath massage brush as recited in  claim 10 , wherein the casing has an oval shape. 
     
     
         13 . An electric bath massage brush as recited in  claim 12 , wherein the bristles on the massage surface of the case body includes a first group of bristles of a first diameter, a second group of bristles of a second diameter greater than the first diameter of the first group of the bristles, and a third group of bristles of a third diameter greater than the second diameter of the second group of bristles, and wherein the second group of the bristles is located at a circular center area of the massage surface of the case body; the third group of the bristles is disposed around the second group of the bristles; and the first group of the bristles is located outside the third group of the bristles. 
     
     
         14 . An electric bath massage brush as recited in  claim 13 , wherein the bristles on the massage surface of the case body further includes a fourth group of bristles of a fourth diameter generally identical to the first diameter of the first group of the bristles, and the fourth group of the bristles is generally arranged in a ring and interposed at a junction between the second and third groups of the bristles. 
     
     
         15 . An electric bath massage brush as recited in  claim 10 , wherein the case body includes an inner shell and an outer shell removably attached to the inner shell; the inner shell is coupled with the lid to form a chamber therein for accommodation of the vibrating device and the control circuit device; and the outer shell defines thereon said massage surface and is integrally formed at the massage surface with the bristles. 
     
     
         16 . An electric bath massage brush as recited in  claim 15 , wherein the outer shell with the bristles comprises a silicon material. 
     
     
         17 . An electric bath massage brush as recited in  claim 15 , wherein the lid defines a first annular groove, and the outer shell has an annular lip portion engaged in the annular groove of the lid. 
     
     
         18 . An electric bath massage brush as recited in  claim 17 , wherein the outer shell further has an annular rib extending inwardly, and the inner shell and the lid co-define a second annular groove in which the annular rib of the outer shell is engaged.