KR20040103255A

KR20040103255A - Electric Toothbrush

Info

Publication number: KR20040103255A
Application number: KR1020030035214A
Authority: KR
Inventors: 박관근
Original assignee: 박관근
Priority date: 2003-06-02
Filing date: 2003-06-02
Publication date: 2004-12-08

Abstract

PURPOSE: An electric toothbrush which brushes all teeth at the same time is provided to minimize the brushing time, to cleanly brush even the portion that a toothbrush doesn't reach, and to more conveniently use the present toothbrush. CONSTITUTION: The electric toothbrush includes: a drive(1), having many built-in spur gears(6) rotated by a motor(5) which is installed in the front end of a grip case(4); a toothbrush mounting(2), in which many fixing frames(12) are connected by a hinge connection(9), and a toothbrush fixing panel(17) in which many toothbrushes(13) and circular toothbrushes(14) are installed, is mounted; and a power transferring portion(3), composed of protecting cases(16) in which a worm gear(15), connected with the spur gears(6), which is rotated by the motor(5), by means of a toothbrush driving shaft(8), and many worm gears(15',15"), driven by the worm gear(15) so as to rotate the toothbrushes(13) are built-in.

Description

Electric Toothbrush

본 발명은 치아를 닦는데 사용하는 전동칫솔에 관한 것으로, 더욱 상세하게는 모터의 구동에 의해 회전하면서 치아전체를 동시에 닦을 수 있도록하여 치아를 보다 신속하고 깨끗하게 닦을 수 있도록 하므로서 사용이 매우 편리한 전동칫솔에 관한 것이다.The present invention relates to an electric toothbrush used for cleaning teeth, and more particularly, it is possible to wipe the entire tooth at the same time while rotating by the drive of the motor to be able to wipe the teeth more quickly and clean electric toothbrush very convenient to use It is about.

칫솔은 사람의 치아건강을 유지시키는 중요한 위생도구로서, 근래에는 치아를 보다 깨끗하고 신속하게 닦기 위해 각종 전동칫솔이 개발되어 널리 사용되고있다.Toothbrushes are an important hygiene tool for maintaining dental health of humans. Recently, various electric toothbrushes have been developed and widely used to clean and quickly clean teeth.

그 중 가장 널리 사용되는 전동칫솔은 칫솔의 선단부에 설치된 칫솔모가 내부의 모터에 의해 회전되게 구성한 것으로서, 칫솔모를 치아에 밀착시켜 이동시키면서 칫솔모를 회전시켜 치아를 닦는 것이다.Among them, the most widely used electric toothbrush is that the bristles installed in the tip of the toothbrush is configured to rotate by an internal motor, and the brush head is rotated to clean the teeth while moving the bristles in close contact with the teeth.

그러나 상기와 같은 종래의 전동칫솔은 사용자가 닦고저하는 치아에 칫솔모를 이동시키면서 닦아야하므로 치아를 닦는 시간이 오래걸릴 뿐만 아니라, 칫솔모가 닿지 못하는 치아의 구석구석까지 닦기가 불가능하여 깨끗한 치아관리가 불가능한 문제점이 있었다.However, the conventional electric toothbrushes as described above need to be wiped while moving the bristles to the user's brushing and cleaning, which takes longer to clean the teeth, and it is impossible to clean every corner of the teeth that the bristles cannot reach. There was a problem.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서,The present invention has been made to solve the above problems,

모터에 의해 회전하는 다수의 칫솔을 내장하고 마우스피스와 같이 치아에 문상태에서 회전시켜 모든 치아를 동시에 닦을 수 있도록하므로서, 치아를 닦는 시간을 최소화함은 물론, 칫솔이 닿지 않는 부위까지 깨끗하게 닦을 수 있고, 사용이 보다 편리하여 치아의 건강유지에 크게 이바지 할 수 있는 전동칫솔을 제공함에 본 발명의 목적이 있다.Built-in toothbrushes rotated by a motor and rotated in the same state as the mouthpiece so that all teeth can be cleaned at the same time, minimizing the time for brushing teeth and cleaning the toothbrush out of reach. It is an object of the present invention to provide an electric toothbrush that is more convenient to use and can greatly contribute to maintaining the health of teeth.

도 1 은 본 발명의 전동칫솔을 도시한 평면도.1 is a plan view showing the electric toothbrush of the present invention.

도 2 는 본 발명의 전동칫솔을 도시한 측면도.Figure 2 is a side view showing the electric toothbrush of the present invention.

도 3 은 본 발명 전동칫솔의 도시한 고정패널부를 도시한 정면도.Figure 3 is a front view showing a fixed panel portion of the electric toothbrush of the present invention.

도 4 는 본 발명 전동칫솔의 웜기어설치부를 도시한 단면도.Figure 4 is a sectional view showing a worm gear installation of the electric toothbrush of the present invention.

도 5 는 본 발명의 전동칫솔에 간격조절수단을 설치한 상태의 분리사시도.Figure 5 is an exploded perspective view of the spacing control unit installed in the electric toothbrush of the present invention.

도 6 는 본 발명의 전동칫솔에 간격조절수단을 설치한 상태의 결합사시도.Figure 6 is a perspective view of the combined tooth installed in the electric toothbrush of the present invention with a gap adjusting means.

도 7 은 본 발명의 전동칫솔을 분리식으로 구성한 상태의 부분확대단면도.7 is a partially enlarged cross-sectional view of a state in which the electric toothbrush of the present invention is configured detachably.

도 8 은 본 발명 전동칫솔에 설치된 칫솔을 도시한 확대사시도.Figure 8 is an enlarged perspective view showing a toothbrush installed in the present invention electric toothbrush.

도 9 는 본 발명 전동칫솔의 작동설명도.9 is an operation explanatory diagram of the present invention electric toothbrush.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1 : 구동부 2 : 칫솔장착부1: drive unit 2: toothbrush mounting unit

3 : 동력전달부 4 : 손잡이케이스3: power transmission unit 4: handle case

5 : 모터 6 : 평기어5: motor 6: spur gear

7 : 원형칫솔구동축 8 : 칫솔구동축7: toothbrush drive shaft 8 toothbrush drive shaft

9 : 힌지연결부 10 : 스프링9: hinge connection 10: spring

11 : 지지대 12 : 고정프레임11: support 12: fixed frame

13 : 칫솔 14 : 원형칫솔13: toothbrush 14: round toothbrush

15,15',15" : 웜기어 16 : 보호케이스15,15 ', 15 ": Worm gear 16: Protective case

17 : 칫솔고정패널 18 : 요함부17: toothbrush fixing panel 18: essential parts

19 : 장공 20 : 간격조절구19: long hole 20: spacing device

21 : 왕복대 22 : 손잡이21: shuttle 22: handle

23 : 랙기어부 24 : 나사봉23: rack gear part 24: screw rod

25 : 결합구 26 : 가이드공25: combiner 26: guide ball

27 : 기어부 28 : 나사공27: gear 28: screw hole

29 : 삽탈공 30 : 경사면29: inserting hole 30: inclined surface

31 : 결합공31: coupling hole

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1 은 본 발명의 전동칫솔을 도시한 평면도이고, 도 2 는 본 발명의 전동칫솔을 도시한 측면도, 도 3 은 본 발명 전동칫솔의 도시한 고정패널부를 도시한 정면도, 도 4 는 본 발명 전동칫솔의 웜기어설치부를 도시한 단면도이다.1 is a plan view showing the electric toothbrush of the present invention, Figure 2 is a side view showing the electric toothbrush of the present invention, Figure 3 is a front view showing a fixed panel portion of the electric toothbrush of the present invention, Figure 4 is the present invention It is sectional drawing which shows the worm gear installation part of an electric toothbrush.

손잡이케이스(4) 선단에 설치되어 모터(5)의 작동에 의해 회전하는 다수의 평기어(6)가 내장된 구동부(1)와; 다수의 고정프레임(12)을 힌지연결부(9)로 연결하고, 그 양단에 칫솔(13) 및 원형칫솔(14)이 결합되는 칫솔고정패널(17)을 설치하며, 내부에 다수의 칫솔(13)과 원형칫솔(14)을 설치한 칫솔장착부(2)와; 모터(5)에 의해 회전하는 평기어(6)와 칫솔구동축(8)으로 연결된 웜기어(15) 및 이 웜기어(15)로부터 동력을 전달받아 칫솔(13)을 회전시키는 다수의 웜기어(15')(5")가 보호케이스(16)내에 설치된 동력전달부(3)로 구성하되,A drive unit 1 installed at the tip of the handle case 4 and having a plurality of spur gears 6 rotated by the operation of the motor 5; A plurality of fixing frames 12 are connected to the hinge connecting portion 9, and a toothbrush fixing panel 17 to which a toothbrush 13 and a circular toothbrush 14 are coupled to both ends thereof, and a plurality of toothbrushes 13 therein Toothbrush mounting portion (2) and a circular toothbrush (14); A worm gear 15 connected to the spur gear 6 and the toothbrush drive shaft 8 rotated by the motor 5, and a plurality of worm gears 15 'that receive power from the worm gear 15 to rotate the toothbrush 13. (5 ") consists of the power transmission part 3 installed in the protective case 16,

양측 칫솔고정패널(17)의 상하측에 각각 치아가 삽입되는 요함부(18)를 형성하고, 그 양측상하부에 칫솔(13)이 결합되는 경사상의 장공(19)과 결합공(31)을 형성하며, 중앙부에 원형칫솔(14)이 결합되는 결합공(32)을 형성하여, 이에 각각 스프링(10)으로 연결되어 절곡된 칫솔(13)과, 구동부(1)의 평기어(6)와 원형칫솔구동축(7)으로 연결된 원형칫솔(14)을 결합하고, 양측 고정프레임(12)의 내측면에 지지대(11)를 설치하여 이에 칫솔(13)을 결합하고, 양측 칫솔고정패널(17)의 전면으로 돌출된 칫솔(13)의 회전축을 각각 전기한 동력전달부(3)의 웜기어(15')(15")와 연결하여 동시회전되게 구성한 것이다.The recesses 18 are formed in the upper and lower sides of both toothbrush fixing panels 17, respectively, and the inclined long holes 19 and the coupling holes 31 are formed in the upper and lower sides of the toothbrush 13, respectively. And a coupling hole 32 to which a circular toothbrush 14 is coupled to a central portion thereof, wherein the toothbrush 13 and the spur gear 6 of the driving unit 1 and the circular shape of the toothbrush 13 are bent and connected to each spring 10. Couple the circular toothbrush 14 connected to the toothbrush drive shaft (7), install the support (11) on the inner side of the fixed frame 12 on both sides to couple the toothbrush 13 to this, and the toothbrush fixing panel (17) of The rotating shaft of the toothbrush 13 protruding to the front side is connected to the worm gear 15 'and 15 "of the power transmission unit 3, respectively.

도 5 는 본 발명의 전동칫솔에 간격조절수단을 설치한 상태의 분리사시도이고, 도 6 는 본 발명의 전동칫솔에 간격조절수단을 설치한 상태의 결합사시도로서,Figure 5 is an exploded perspective view of a state in which the interval adjusting means is installed in the electric toothbrush of the present invention, Figure 6 is a combined perspective view of the state in which the interval adjusting means is installed in the electric toothbrush of the present invention,

양측 칫솔고정패널(17)의 전면에 나사공(28)이 형성된 간격조절구(20)를 설치하고, 양측 나사공(28)에 나삽되고 중앙외주면에 기어부(27)가 형성된 나사봉(24)을 설치하여 양측 칫솔고정패널(17)을 서로 연결하되,A threaded rod 24 having a spacing adjuster 20 having a screw hole 28 formed on the front surface of both toothbrush fixing panels 17, which is screwed into both screw holes 28, and a gear part 27 is formed on the center outer circumferential surface thereof. Install) to connect both toothbrush fixing panels (17) to each other,

나사봉(24)의 중앙외주면에 형성된 기어부(27)에는, 랙기어부(23)와 손잡이(22)가 구비된 왕복대(21)가 삽탈되는 가이드공(26)이 형성된 결합구(25)를 설치한 것이다.In the gear portion 27 formed on the center outer circumferential surface of the screw rod 24, the coupling hole 25 is formed with a guide hole 26 to insert the rack gear portion 23 and the carriage 21 provided with the handle 22 ) Is installed.

도 7 은 본 발명의 전동칫솔을 분리식으로 구성한 상태의 부분확대단면도로서,7 is a partially enlarged cross-sectional view of a state in which the electric toothbrush of the present invention is configured separately;

칫솔구동축(8)과 양측의 원형칫솔구동축(7)을 각각 분리형성하고, 일측의 구동축(8)(7)에 삽탈공(29)을 형성하여 서로 삽탈되게 구성한 것이다.The toothbrush drive shaft 8 and the circular toothbrush drive shafts 7 on both sides are separately formed, and inserting holes 29 are formed in the drive shafts 8 and 7 on one side to be inserted and detached from each other.

도 8 은 본 발명 전동칫솔에 설치된 칫솔을 도시한 확대사시도로서,8 is an enlarged perspective view showing a toothbrush installed in the electric toothbrush of the present invention;

다수의 칫솔(13)을 단면상 사각형으로 형성하고, 일측면에 다수의 칫솔모를 설치하되, 칫솔모가 설치된 면의 양단부에 다수의 경사면(30)을 형성하고 이에 칫솔모를 경사상으로 설치하여 구성한 것이다.A plurality of toothbrushes 13 are formed in a rectangular cross section, and a plurality of bristles are installed on one side, and a plurality of inclined surfaces 30 are formed at both ends of a surface where the bristles are installed, and the bristles are installed in an inclined manner.

이하, 본 발명의 작용을 설명한다.The operation of the present invention will be described below.

본 발명의 전동칫솔을 이용하여 치아를 닦고저 할 때에는 도 9의 도시와 같이 양측의 칫솔고정패널(17)에 형성된 요함부(18)에 양측 어금니가 삽입되고 치아전체가 다수의 칫솔(13)사이에 위치되도록 마우스피스를 물듯이 칫솔장착부(2)를입에 문 후, 손잡이케이스(4)에 설치된 스위치(도면에는 도시하지 않음)를 조작하여 모터(5)에 전원을 인가한다.When brushing teeth using the electric toothbrush of the present invention, as shown in FIG. 9, both molar teeth are inserted into the recesses 18 formed in the toothbrush fixing panels 17 on both sides, and the entire tooth is a plurality of toothbrushes 13. The toothbrush mounting portion 2 is held in the mouth as if the mouthpiece is positioned therebetween, and then a power is supplied to the motor 5 by operating a switch (not shown) installed in the handle case 4.

모터(5)에 전원이 인가되면, 모터(5)의 회전축과 연결된 구동부(1)내의 평기어(6)들이 회전하면서 이에 연결된 칫솔구동축(8)과 원형칫솔구동축(7)이 회전하는 것이다.When power is applied to the motor 5, the toothed gear drive shaft 8 and the circular toothbrush drive shaft 7 connected thereto rotate while the spur gears 6 in the driving unit 1 connected to the rotary shaft of the motor 5 rotate.

양측의 원형칫솔구동축(7)이 회전하면서 양측 어금니 사이에 위치된 원형칫솔(14)을 회전시켜 어금니의 상하면을 닦아내게 되는 것이다.As the circular toothbrush driving shaft 7 on both sides rotates, the upper and lower surfaces of the molars are wiped by rotating the circular toothbrush 14 positioned between the molars on both sides.

중앙의 칫솔구동축(8)이 회전하면서 동력전달부(3)의 웜기어(15)를 일측방향으로 회전시키게 되고, 이와 연결된 양측의 웜기어(15')(15")가 동시에 회전하면서 스프링(10)으로 연결된 내,외측 및 상,하측 칫솔(13)이 동시에 회전하게 되는 것이다.As the toothbrush driving shaft 8 in the center rotates, the worm gear 15 of the power transmission unit 3 is rotated in one direction, and the worm gears 15 'and 15 "connected to both sides rotate simultaneously, and the spring 10 is rotated. Inner, outer and upper, lower toothbrush 13 is connected to be rotated at the same time.

이때, 상,하측에 설치된 칫솔(13)은 윗니의 경우 칫솔모가 상측에서 하측으로 향하도록 회전시키고, 아랫니의 경우 칫솔모가 하측에서 상측으로 회전되게 모터(5)의 회전방향을 설정하므로서, 잇몸을 보호하고 보다 깨끗하게 치아를 닦을 수 있는 것이다.At this time, the toothbrush 13 installed on the upper and lower sides rotates the bristles toward the upper side in the case of the upper teeth, and in the case of the lower teeth, sets the rotation direction of the motor 5 so that the bristles rotate from the lower side to the upper side. You can protect and clean your teeth more cleanly.

본 발명의 전동칫솔은 칫솔장착부(2)를 구성하는 고정프레임(12)이 다수의 힌지연결부(9)로 연결되어 있고, 내부에 설치된 다수의 칫솔(13) 및 원형칫솔(14)이 스프링(10)으로 연결되어 있으므로, 스프링(10)의 유연성 및 탄발력에 의해 모터(5)에 의한 회전력을 칫솔(13) 및 원형칫솔(14)에 그대로 전달할 수 있으면서도, 사용자의 치형에 따라 그 형상을 변형하여 사용할 수 있으며, 고정프레임(12)이 칫솔(13)의 회전시 입내부의 살과 접속되는 것을 차단하여 입안내부를 보호할 수 있는 것이다.In the electric toothbrush of the present invention, the fixed frame 12 constituting the toothbrush mounting portion 2 is connected by a plurality of hinge connecting portions 9, and a plurality of toothbrushes 13 and circular toothbrushes 14 installed therein are springs ( 10), it is possible to transfer the rotational force of the motor 5 to the toothbrush 13 and the circular toothbrush 14 by the flexibility and elasticity of the spring 10 as it is, the shape according to the user's teeth Can be used to deform, it is possible to protect the mouth guide by blocking the fixing frame 12 is connected to the flesh in the mouth when the toothbrush 13 rotates.

고정프레임(12)의 내측양면에 설치된 지지대(11)는 외측 칫솔(13)이 회전시 방해를 주지 않으면서 견고히 지지하여 사용중 칫솔(13)이 유동되는 것을 방지하는 것이다.The support 11 installed on both inner sides of the fixing frame 12 is to prevent the toothbrush 13 from flowing during use by firmly supporting the outer toothbrush 13 without disturbing the rotation.

칫솔고정패널(17)의 외측 칫솔(13)이 결합되는 장공(19)은 외측칫솔(13)이 치아의 외측에서 회전시 칫솔(13)이 이 장공(19)을 따라 슬라이딩 되도록 하므로서, 칫솔고정패널(17)외측에 칫솔(13)의 회전시 필요한 공간을 형성하지 않아도 되므로 전동칫솔의 크기를 최소화 할 수 있는 것이다.The long hole 19 to which the outer toothbrush 13 of the toothbrush fixing panel 17 is coupled allows the toothbrush 13 to slide along the long hole 19 when the outer toothbrush 13 rotates outside the tooth, thereby fixing the toothbrush. It is possible to minimize the size of the electric toothbrush because it does not have to form a space required for rotation of the toothbrush 13 on the outside of the panel 17.

이를 더욱 상세히 설명하면, 칫솔모가 회전하여 내측을 향하게 되면 스프링(10)의 인장력에 의해 칫솔(13)이 장공(19)의 외측으로 이동되었다가, 칫솔모가 외측으로 향하면 고정프레임(12)의 내측면에 접촉되면서 내측으로 밀려 칫솔(13)이 장공(19)을 따라 슬라이딩 되므로 칫솔(13)의 회전이 원활히 이루어지는 것이다.In more detail, when the bristle is rotated to face inward, the toothbrush 13 is moved outward of the long hole 19 by the tension force of the spring 10, and when the bristle faces outward, the fixing frame 12 The toothbrush 13 is pushed inward while being in contact with the side surface, so that the toothbrush 13 rotates along the long hole 19.

구동부(1)에 연결된 칫솔구동축(8)과 연결되어 칫솔(13)을 회전시키는 다수의 웜기어(15)(15')(15")는 보호케이스(16)내에 설치되어 웜기어(15)(15')(15")의 회전시 발생할 수 있는 입안의 부상을 방지하는 것이다.A plurality of worm gears 15, 15 ′, 15 ″ connected to the toothbrush drive shaft 8 connected to the drive unit 1 to rotate the toothbrush 13 are installed in the protective case 16 to install the worm gears 15, 15. ') (15 ") to prevent injuries to the mouth that can occur during rotation.

한편, 도5 내지 도6의 도시와 같이 양측의 칫솔고정패널(17)에 간격조절수단을 설치하므로서 칫솔장착부(2)를 입안에 넣거나 뺄때 입을 무리하게 벌리지 않고도 편리하게 삽탈할 수 있는 것이다.On the other hand, as shown in Figures 5 to 6 by installing the gap adjusting means on the toothbrush fixing panel 17 on both sides it can be easily removed without inserting the toothbrush mounting portion (2) in the mouth without forcibly opening the mouth.

이와 같은 간격조절수단의 작동을 살펴보면, 칫솔장착부(2)의 폭을 벌리거나 오무릴시에는 왕복대(21)에 연결된 손잡이(22)를 손으로 잡고 밀거나 당기게 되면, 이와 연결되고 결합구(25)의 가이드공(26)에 삽입된 왕복대(21)가 일측으로 이동되면서 랙기어부(23)가 함께 이동하게 되고, 이 랙기어부(23)와 기어부(27)에 의해 치합되어 있던 나사봉(24)이 회전하면서 칫솔고정패널(17)에 설치된 간격조절구(20)의 나사공(28)에 삽탈되면서 양측 칫솔고정패널(17)의 간격을 조절할 수 있는 것이다.Looking at the operation of such a gap adjusting means, when the width of the toothbrush mounting portion (2) widen or squeeze the handle 22 connected to the carriage 21 by hand to push or pull, it is connected to the coupler (25) The rack gear portion 23 is moved together while the carriage 21 inserted into the guide hole 26 of the side is moved to one side, and the rack gear portion 23 and the gear portion 27 are engaged with each other. The screw rod 24 is rotated while being inserted into the screw hole 28 of the gap adjusting hole 20 installed in the toothbrush fixing panel 17 to adjust the distance of both toothbrush fixing panel 17.

또한, 도 7의 도시와 같이 중앙의 칫솔구동축(8)과 양측의 원형칫솔구동축(7)을 분리형성하여 삽탈공(29)에 의해 삽탈되게 구성하므로서, 전동칫솔의 보관이나 휴대를 편리하게 한 것이다.In addition, as shown in FIG. 7, the central toothbrush drive shaft 8 and the circular toothbrush drive shafts 7 on both sides are separately formed to be detached by the insertion hole 29, thereby making it easy to store and carry the electric toothbrush. will be.

한편, 본 발명에 사용되는 다수의 칫솔(13)은 전기한 바와 같이 칫솔모가 설치된 면의 양단부에 다수의 경사면(30)을 설치하여 이에 칫솔모를 경사상으로 설치하므로서, 칫솔(13)이 회전시 칫솔(13)과 칫솔(13)사이에 형성되는 공백을 보완하여 종래의 수동칫솔이나 전동칫솔에 의해 닦을 수 없었던 치아의 모든 부위를 깨끗하게 닦을 수 있는 것이다.On the other hand, the plurality of toothbrushes 13 used in the present invention, as described above, by installing a plurality of inclined surfaces 30 at both ends of the surface where the bristles are installed, thereby installing the bristles in an inclined state, when the toothbrush 13 rotates Complementing the gap formed between the toothbrush 13 and the toothbrush 13 is to clean all the parts of the tooth that could not be cleaned by the conventional manual toothbrush or electric toothbrush.

상기와 같이 본 발명은 모터에 의해 회전하는 다수의 칫솔을 내장하고 마우스피스와 같이 치아에 문상태에서 회전시켜 모든 치아를 동시에 닦을 수 있도록하므로서, 치아를 닦는 시간을 최소화함은 물론, 칫솔이 닿지 않는 부위까지 깨끗하게 닦을 수 있고, 사용이 보다 편리하여 치아의 건강유지에 크게 이바지 할 수 있는 것이다.As described above, the present invention includes a plurality of toothbrushes rotated by a motor and rotates in the state of the door like a mouthpiece so that all teeth can be polished at the same time. It can be wiped cleanly to areas that do not, and it is more convenient to use, which can greatly contribute to maintaining the health of teeth.

Claims

A drive unit 1 installed at the tip of the handle case 4 and having a plurality of spur gears 6 rotated by the operation of the motor 5; A plurality of fixing frames 12 are connected to the hinge connecting portion 9, and a toothbrush fixing panel 17 to which a toothbrush 13 and a circular toothbrush 14 are coupled to both ends thereof, and a plurality of toothbrushes 13 therein Toothbrush mounting portion (2) and a circular toothbrush (14); A worm gear 15 connected to the spur gear 6 and the toothbrush drive shaft 8 rotated by the motor 5, and a plurality of worm gears 15 'that receive power from the worm gear 15 to rotate the toothbrush 13. (5 ") consists of the power transmission part 3 installed in the protective case 16,

The recesses 18 are formed in the upper and lower sides of both toothbrush fixing panels 17, respectively, and the inclined long holes 19 and the coupling holes 31 are formed in the upper and lower sides of the toothbrush 13, respectively. And a coupling hole 32 to which a circular toothbrush 14 is coupled to a central portion thereof, wherein the toothbrush 13 and the spur gear 6 of the driving unit 1 and the circular shape of the toothbrush 13 are bent and connected to each spring 10. Couple the circular toothbrush 14 connected to the toothbrush drive shaft (7), install the support (11) on the inner side of the fixed frame 12 on both sides to couple the toothbrush 13 to this, and the toothbrush fixing panel (17) of Electric toothbrush, characterized in that configured to be rotated at the same time by connecting the rotary shaft of the toothbrush (13) protruding toward the front and the worm gear (15 ', 15 ") of the power transmission unit (3).

According to claim 1, the toothbrush fixing panel 17 is provided with a spacing device (20) formed with a screw hole (28) on the front surface, the threaded portion is screwed into the two screw holes (28) and the gear portion 27 on the central outer peripheral surface Install the formed screw rods 24 to connect both toothbrush fixing panels 17 to each other,

In the gear portion 27 formed on the center outer circumferential surface of the screw rod 24, the coupling hole 25 is formed with a guide hole 26 to insert the rack gear portion 23 and the carriage 21 provided with the handle 22 Electric toothbrush, characterized in that for installing.

According to claim 1, wherein the toothbrush driving shaft 8 and the circular toothbrush driving shaft (7) on both sides is formed separately, and the insertion shaft (29) is formed on the driving shaft (8) (7) of one side to be inserted into and removed from each other Electric toothbrush characterized by.

The method of claim 1, wherein the plurality of toothbrushes 13 are formed in a rectangular cross section, and a plurality of bristles are provided on one side, but a plurality of inclined surfaces 30 are formed at both ends of the surface where the bristles are installed, and the bristles are inclined. Electric toothbrush, characterized in that the installation.