KR200173499Y1 - Electric toothbrush with protecting cover - Google Patents

Abstract

The present invention relates to an electric rotary toothbrush having a protective cover.

Conventional toothbrushes have been introduced a number of domestic utility models, but these are all uncomfortable because the protective cover is rotated with the toothbrush, or the protective cover is fixed to the toothbrush bar, difficult to remove and difficult to clean or the protective cover is too thick There is a problem that is uncomfortable to put in the mouth.

Electric rotary toothbrush of the present invention is composed of a cylindrical toothbrush portion consisting of a brush, toothbrush shaft and toothbrush insert, a protective cover to protect the mouth from the rotating toothbrush, and a motor case with a built-in drive motor. The toothbrush insert of the cylindrical toothbrush is hexagonal and can be easily inserted into the rotating shaft. The protective cover is 90 to 140 degrees open to one side, allowing the brush to continue to sweep the gums and teeth as it rotates, while the other side is blocked and rotated. If the lower part of the protective cover is inserted by removing the fixing pin of the motor case slightly while inserting the protective cover from the motor case, the protective cover is fixed to the motor case by the anti-load force of the spring and the cylindrical toothbrush part also supports to prevent it from falling out when rotating.

Description

Electric Toothbrush with Protecting Cover}

The present invention relates to an electric rotary toothbrush having a protective cover. Conventional toothbrushes have been introduced a number of domestic utility models, but these are all uncomfortable because the protective cover is rotated with the toothbrush, or the protective cover is fixed to the toothbrush bar, difficult to remove and difficult to clean or the protective cover is too thick There is a problem that is uncomfortable to put in the mouth.

Korean Utility Model Publication 91-2 is a portable rotary toothbrush, which is inconvenient for practical use because the protective cover is turned like a toothbrush.The manual rotary device of Utility Model Publication Nos. 90-4488 and 1231 is difficult to clean because the protective cover is fixed to the toothbrush. Utility Model Disclosures 91-1, 1353 Electric Toothbrushes and Utility Model Disclosures 93-5404, 1804 The rotary toothbrush has a protective cover that is integrated with the toothbrush bar, making it difficult to remove and difficult to clean. Utility Model Disclosure 91-8903, 1518 Toothbrushes have a thick body of protective cover and are inconvenient to brush freely.

There are also U.S. Patent Nos. 4,710,995, 4,175,299, 4,149,291, and 3,945,076, but these all have a form in which the sole vibrates up and down or reciprocates.

The present invention has the advantage that the structure is simple to rotate the cylindrical toothbrush by a motor, the structure is simple, so there is less fear of failure and the manufacturing cost is low. In addition, by changing the direction of rotation as needed, the rotating brush is swept vertically from the side of the enhancement gum to remove the food stuck between the teeth and the gum to the teeth to make the gums healthy. It is also convenient for children as it can easily brush both upper and lower, inner and outer teeth. In particular, the protective cover can be easily fixed or removed, so it is easy to clean and the body of the protective cover is thin and easy to put in the mouth. Protective covering is essential to protect other oral areas that do not require brushing.

1 is a partial cross-sectional view of the present invention

FIG. 2A is a cross-sectional view taken along the line AA ′ of FIG. 1.

(b) is sectional drawing along the line B-B 'of FIG.

(c) is sectional drawing along the line C-C 'of FIG.

3 is a configuration diagram of the switch unit of the present invention

<Description of Symbols for Major Parts of Drawings>

1: brush 2: toothbrush shaft 3: toothbrush insert

4: protective cover 5: covering fixing pin 6: spring covering

7: spring 8: rotating shaft 9: motor case

10: turn right button 11: turn left button 12: stop button

The electric rotary toothbrush provided with the protective cover of the present invention is a mouthpiece from a rotating toothbrush and a cylindrical toothbrush portion consisting of a brush part (1) planted around a cylindrical body, a toothbrush shaft (2) and a toothbrush insert (3). It consists of a half-cover type protective cover (4), a driving motor and a motor case (9) in which the ball motor is built.

The toothbrush insert 3 of the cylindrical toothbrush portion can be inserted into the rotary shaft 8 simply in a hexagon. The protective cover (4) is open about 90 to 140 degrees on one side to form a half moon shape, and the brush rotates to continuously sweep the gums and teeth, and the other side is blocked to protect the mouth from the rotating toothbrush.

Insert the underside of the protective cover (4) by slightly removing the cover fixing pin (5) of the motor case (9), and then placing the cover spring (5) to protect the cover by the repulsive force of the spring (7) in the spring cover (6). 4) is fixed to the motor case and also serves to support the cylindrical toothbrush so as not to fall out when rotating.

The upper part of the protective cover 4 has an outer diameter of 15 to 22 mm and a length of 15 to 40 mm depending on the size of the toothbrush. The silver is slightly separated from the toothbrush shaft (2), the length is 50 to 100 mm and manufactured in various sizes so that both adults and children can easily clean the inside and outside of the tooth. The protective cover 4 may be directly injection molded plastic, but may be produced by stamping and pressing stainless steel sheet.

The cover fixing pin (5) uses a spring (7) to push the fixing pin always in place, and when the protective cover is inserted or removed, the protective cover can be removed from the position where the pin is slightly removed.

The motor case (9) with a built-in drive motor is provided with a right turn button (10), a left turn button (11) and a stop button (12), and the brush always changes the direction of rotation of the toothbrush as needed while brushing the teeth from the gum side. Make sure to turn to the side, so that food debris is well removed and the gums are always swept towards the teeth to make the gums stronger.

The rotational speed of the drive motor can be fixed or variable by adjusting the speed suitable for brushing. The power source can be a conventional disposable battery, a rechargeable battery or a rechargeable battery.

The protective cover of the present invention consists of a cylindrical toothbrush comprising a brushed part, a toothbrush shaft and a toothbrush insert formed around the cylindrical body, a protective covering to protect the mouth from the rotating toothbrush, and a motor case with a built-in driving motor. One electric rotary toothbrush is simple in structure, inexpensive, has fewer breakdowns, is very easy to clean and can be used by children. The cylindrical toothbrush part is a consumable item, and when replaced, it is replaced with a new one.

Claims (3)

In a conventional toothbrush composed of a brush (1), a toothbrush shaft (2) and a toothbrush insert (3), the lower end of the toothbrush shaft is composed of a hexagonal toothbrush insert (3) and a drive motor having a rotary shaft interlocked at the upper end thereof. While the motor case (9) with a built-in drive motor is provided, the hexagonal toothbrush insert (3) is inserted into the rotating shaft and interlocked, and one side of the brush (1) constitutes a semi-monthly protective cover (4). An electric rotary toothbrush provided with a protective cover, characterized in that it is configured to couple to one end of the motor case to cover and fix it with a fixing pin (5). The electric rotary toothbrush of claim 1, wherein the protective cover (4) is detachable from the motor case (9) by a fixed cover pin (5). 3. The protective cover (4) according to claim 1 or 4, wherein the upper part of the protective covering (4) is open about 90 to 140 degrees to one side, and the outer diameter is 15 to 22 mm, the length is 15 to 40 mm, and the inner diameter is the brush side according to the size of the toothbrush. And a slight contact with the middle part, the outer diameter of which is 9 to 12 mm, the inner diameter of the inner diameter is slightly away from the toothbrush shaft (2), the electric rotation with a protective cover characterized in that the length is 50 to 100 mm Toothbrush.