WO2005084580A1

WO2005084580A1 - Electrical toothbrush

Info

Publication number: WO2005084580A1
Application number: PCT/EG2004/000045
Authority: WO
Inventors: Mostafa Mohamed El Amin
Original assignee: Mostafa Mohamed El Amin
Priority date: 2004-03-09
Filing date: 2004-11-06
Publication date: 2005-09-15

Abstract

Electrical Toothbrush consists of the following : 1) Toothbrush handle (8): which has the electrical motor inside to deliver the power to the rotary toothbrushes through the main axis ; 2). Toothbrush neck (9): Which has the main axis to connect the electrical motor to the toothbrush head ; 3) Toothbrush head (10): It is a plastic case which contain two parallel axes which have a group of rotary brushes fixed on each axis, the two parallel axes engaged with a small gear box to the main axis so that the two groups of the rotary brushes are interfere in each other and rotate in opposite directions.

Description

Electrical Toothbrush

Technical Field: The Electrical Toothbrush used for cleaning teeth of every person and used also as a tooth cleaning / polishing tool for the Dentist. Background Art: The rotating mechanism of existing Electrical toothbrushes bristles is not optimum clinically proven safe on teeth and gums. Advantages of the new invention: The rotating mechanism of the new invention of the Electrical toothbrush bristles is more clinically proven safe on teeth and gums due to its bristles rotating direction which always moves out of the gums (see dwg. # 3/3). Also, this rotating mechanism get more cleaning, remove food debris and attack plaque bacteria due to its deep interpenetration reach. Disclosure of the invention: Note: the numbers below are parts no. of the invention which indicated in the attached drawings. The Electrical Toothbrush consists of the following: 1. Toothbrush handled): dwg. # 1/3. view # 1.2 &3 which has the electrical motor inside to deliver the power to the rotary brushes (11) through the main axis (16). 2. Toothbrush neck (9): dwg's # 1/3 view # 1,2 &3 and dwg. 2/3 cross sec. 7& 6. Which has the main axis (16) to connect the electrical motor to the rotary brushes (11).

3. Toothbrush head(lθ : dwg's # 1/3 view # 1,2 &3 and dwg. 2/3 cross sec. 7, 6. 12. 13 & 14. It is a plastic case which contains the following: a) The gear box (15) contains five small gears which transfer the power from the main axis (16) to the two groups of the rotating brushes (11) , and also those gears (15) are arranged to let the two groups of the rotary brushes (15) rotate in opposite direction, the gears may be made from plastics and their axes made from S.S. b) The rotary brushes (11) are two groups of circular brushes, which have extra soft bristles, every group of the rotary brushes are fixed on each axis, the two axes are parallel and engaged with the gear box (15), also the two axes are close to each other so that the two groups of the rotary brushes are interfering in each other and rotate in opposite direction.

How the toothbrush work & clean the teeth: After putting the toothpaste on the rotary brushes (11), switch on the power switch (19), the electrical motor will rotate the gearbox (15) through the main axis (16), then rotate the rotary brushes (11), dwg. # 3/3 illustrated how the toothbrush head clean the anterior teeth and molars of the upper and lower jaws. Brief Description of Drawings: The no. of the attached drawings are three. Drawing # 1/3 has three views.

- First view (1) is the elevation view of the toothbrush which describe the toothbrush handle (8), its neck (9), toothbrush head (10), rotary brushes (11) and its power switch (19).

- Second view (2) is a side view of the toothbrush.

- Third view (3) showing the toothbrush from the back. Drawing # 2/3 has the following cross sections: - Sec. # (7) is a sec. side view for the toothbrush showing the main axis (16) which connect the electrical motor to the rotary brushes (11) through a small gear box (15).

- Sec. # (8) is a sec. front view for the toothbrush showing the same parts in sec. # (7) but from the front view. - Sec. # (12) is a sec. for more detail showing the toothbrush head (10) and its rotary brushes (11) inside and describe the connection and fixation of the toothbrush head (10) to the toothbrush's neck (9) by small noses (18).

- Sec. # (13) is a sec. for more detail showing the gear box (15) which connect the motion from the main axis (16) to the rotary brushes (11). - Sec. # (14) is a sec. for more detail showing the two groups of rotary brushes (11) which rotating in an opposite direction on their two parallel axes. Drawing # 3/3 has the following views:

- Fig. # (20) showing how to brush the molars of the upper jaw (24) and molars of the lower jaw (25).

- Fig. # (21) showing how to brush the upper and lower molars together. - Fig. # (22) showing how to brush the upper and lower anterior teeth together. Fig. # (23) showing how to brush the upper anterior teeth (26) and lower anterior teeth (27).

Claims

Note: the numbers below are parts no. of the invention which indicated in the attached drawings.

The toothbrush head (10): as illustrated in dwg. # 2/3, cross sections # 6, 7, 12, 13 & 14 is a plastic case which contain the following: 1) The gear box (15) contain five small gears which transfer the power from the main axis (16) to the two groups of rotating brushes (1 1) , and also those gears (15) are arranged to let the two groups of the rotary brushes (15) rotate in opposite direction, the gears may be made from plastics and their axes made from S.S. 2) The rotary brushes (11) are two groups of circular brushes, which have extra soft bristles, every group of the rotary brushes are fixed on each axis, the two axes are parallel and engaged with the gear box (15), also the two axes are close to each other so that the two groups of the rotary brushes are interfere in each other - but the brushes it self s don't interfere- and rotate in opposite direction, the arrangement and mechanism of the rotary brushes (11) as illustrated in dwg. # 2/3, cross see's. # 6, 7, 13 & 14.