KR20040106628A - A electromotion toothbrush - Google Patents

Abstract

PURPOSE: An electric toothbrush is provided to enable an effective brushing operation using two clusters of bristles rotating in opposite directions within a short time without the risk of gum damages. CONSTITUTION: The electric toothbrush comprises: a toothbrush body(60); a motor(62) incorporated in the toothbrush body(60); and a brush head unit(70) connected to a rotation shaft(63) of the motor(62) and having a first bristle cluster(72) and a second bristle cluster(73) rotating in opposite directions and fitted into an upper end of the toothbrush body(60) to be connected to the rotation shaft(63) of the motor(62) by means of a gear unit(80).

Description

Electric toothbrush {A electromotion toothbrush}

The present invention relates to an electric toothbrush that is automatically operated by electricity, and more particularly, to a toothbrush installed in a plurality of rows are rotated inward each other and can effectively remove the foreign matter attached to the teeth without damaging the gums. will be.

In general, a toothbrush is a tool for cleaning the inside of the mouth, including teeth, and is used to remove plaque and tartar, which cause food debris and tooth decay, which remain in the mouth after ingesting food.

However, when brushing by a conventional toothbrush is mainly brushed in the transverse direction, if excessive force is applied to the gums easily damaged and if too little force to remove the plaque is not good feeling of cleanliness.

Its dental association recommended brushing to rotate the toothbrush up and down, but it was harder and more difficult than the transverse direction due to the muscle structure of the arm. In particular, the elderly with weak arm strength was difficult to precise brushing.

1 is a perspective view showing a conventional electric toothbrush, Figure 2 is an enlarged cross-sectional view showing the main portion of the electric toothbrush according to the prior art, Figure 3 is an operating state of the electric toothbrush according to the prior art.

In the related art, as shown in FIGS. 1 and 2, an electric toothbrush operated by electricity has been developed.

The conventional electric toothbrush is provided with a power supply for supplying electricity to the toothbrush body portion (10) connected to a rechargeable battery or a household outlet, the operation motor 12 is operated by receiving power from the power supply on one side.

In addition, a crank 15 and a crank shaft 16 are installed in the rotation shaft 13 of the operating motor to convert the rotational motion into a declination movement, and the toothbrush 25 is disposed in a square in the crank shaft 16. Head 20 is coupled.

However, in the case of the conventional electric toothbrush, as shown in Figure 3, since the bristle 25 is rotated about its axis, it was not possible to wipe the upper teeth and lower teeth at the same time. Digging into the gum damage was rather worse.

Figure 4 is a perspective view of another embodiment of the electric toothbrush according to the prior art, the toothbrush head 40 is provided with a gear body 41 for switching the rotation direction, the bristle 45 is rotated in one direction and the teeth However, the electric toothbrush of this type can not increase the size of the brush head 45, the number of teeth that can be wiped at a time is small, the brushing time is lengthened, the bristles (45) to dig the gum at this time This damaging problem is occurring.

The present invention has been made to solve the above problems of the prior art, the two bristles are rotated to the inner side facing each other and the upper teeth are wiped from the top to the bottom at the same time to wipe the lower teeth from the bottom to damage the gums It is an object of the present invention to provide an electric toothbrush that can be effectively brushed in a short time without making.

1 is a perspective view showing an electric toothbrush according to the prior art,

Figure 2 is an enlarged cross-sectional view of the main portion of the electric toothbrush according to the prior art,

Figure 3 is an operating state of the electric toothbrush according to the prior art,

Figure 4 is a perspective view of the electric toothbrush of another embodiment according to the prior art,

Figure 5 is a perspective view of the electric toothbrush according to the present invention,

Figure 6 is a plan view of the electric toothbrush according to the present invention,

Figure 7 is a side view of the electric toothbrush according to the present invention,

8 is an operating state diagram of the electric toothbrush according to the present invention.

<Explanation of symbols on main parts of the drawings>

60: toothbrush body 62: operation motor

68: operation switch 70: toothbrush head

72: first toothbrush head 73: second toothbrush head

75: brush head 80: gear matching means

82: main gear 84: driven gear

86: first coupler gear 87: second coupler gear

Electric toothbrush according to the present invention for solving the above problems is a toothbrush body portion forming an appearance, a drive operation motor built in the toothbrush body portion and operated when the power is applied, gear matching means to the rotating shaft of the drive operation motor The first and second toothbrush heads are fitted to the upper end of the toothbrush body and are arranged in an annular arrangement with bristles arranged in an annular manner so as to be coupled to each other.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 5 is a perspective view of the electric toothbrush according to the present invention, Figure 6 is a plan view of the electric toothbrush according to the present invention, Figure 7 is a side view of the electric toothbrush according to the present invention, Figure 8 is the present invention This is a state diagram of the electric toothbrush.

5 to 8, the electric toothbrush according to the present invention forms an appearance, the toothbrush body portion 60 is formed to hold the user's hand is formed, the inner side of the toothbrush body portion 60 to supply electricity There is a built-in power supply.

The power supply device may be configured to be inserted into a household outlet to supply power, but in the present invention, a charger (not shown) is provided therein so as to supply power by charging electricity to the charger.

In addition, an operating motor 62 is installed inside the toothbrush body 60 to operate when the charged power is applied to the charger, and a toothbrush for wiping a user's teeth on the rotary shaft 63 of the operating motor. Head 70 is coupled.

One side of the toothbrush body portion 60 is provided with an operation switch 68 for varying the rotational speed of the operating motor 62, it is possible to vary the operating force of the operating motor 62 according to the age used. have.

On the other hand, the toothbrush head 70 is the first and second toothbrush heads 72 and 73 which are arranged in an annular shape and rotated in a direction opposite to each other so that the upper teeth and the lower inside of the teeth can be wiped at the same time. The first and second toothbrush heads 72 and 73 are replaceably fitted to the first brush body, and the driving motor for driving the first and second toothbrush heads 72 and 73. The gear shaft is coupled to the rotating shaft 63 of the through (80).

The gear engaging means 80 is the main shaft gear 82 is arranged on the rotary shaft 63 of the operating motor is rotated in the forward or reverse direction when the operating motor 62 is rotated, the rotary shaft 72a of the first toothbrush head portion ) Is driven to the main gear 82 is provided with a driven gear (84) for transmitting the rotational force of the operating motor (62).

The rotation shaft 63 of the operating motor is positioned in the middle of the first toothbrush head 72 and the second toothbrush head 73 is configured so that no deviation occurs during rotation.

On the other hand, a first coupler gear 86 is provided on the rotation shaft 63 of the first toothbrush head 72.

In addition, a second coupler gear 87 geared with the first coupler gear 86 is installed on the rotation shaft 63 of the second toothbrush head 73 to rotate the first coupler gear 86. It is made to rotate in a direction opposite to the rotation direction of the first coupler gear (86).

The first coupler gear 86 and the second coupler gear 87 have the same gear ratio, and the first toothbrush head 72 and the second toothbrush head 73 are rotated at the same speed. It is preferable.

In addition, the bristles 75 installed in the first brush head portion 72 and the second brush head portion 73 are each spaced apart at a predetermined interval to form a plurality of groups, the first brush head portion 72 The bristle 75 of the second bristle head portion 73 is alternately positioned between the bristles 75 of the ().

That is, the bristle 75 of the second bristle head part is located between the bristle 75 of the first bristle head part, which is formed of a plurality of groups, and the ends of the bristle part of the bristle part of the bristle part of the bristle part of the bristle part of the bristle part of the bristle part of the bristle part of the bristle are too close together. It is configured to improve the washing force of the central portion, so that the rotational force is not reduced by overlapping with the other bristles when rotating, and reduces the distance between the first toothbrush head 72 and the second toothbrush head 73 This makes it possible to produce a compact size.

Looking at the operation of the present invention configured as described above are as follows.

First, the user brush their teeth in order to remove plaque such as food waste, tartar, plaque, or the like in oral cavity or teeth.

To this end, the user applies a predetermined amount of toothpaste to increase the cleaning force on the bristle 75 of the electric toothbrush, and then operates the operation switch 68 to supply power to the operating motor 62.

As described above, the operation motor 62 supplied with power is rotated, and the main gear 82 installed on the rotation shaft 63 of the operation motor 62 is rotated.

At this time, a driven gear 84 is arranged in the first toothbrush head 72 to be bitten with the main gear 82 to rotate.

At the same time, the first coupler gear 86 provided on the rotation shaft 63 of the first toothbrush head portion is rotated and bites with the second coupler gear 87 installed on the rotation shaft 63 of the second toothbrush head portion and rotates in the opposite direction. Will be.

That is, the second toothbrush head portion 73 and the second toothbrush head portion 73 are rotated to the inner side facing each other and the upper teeth are wiped downward from the top while effectively cleaning the lower teeth from below.

On the other hand, if the bristle 75 is worn due to continuous use to replace the toothbrush head 70 to continue to use. In addition, the toothbrush head 70 is produced in a variety of colors to be easily available on the market, to replace only the toothbrush head 70 of different colors between the family so that the whole family can use together.

While the electric toothbrush according to the present invention has been described with reference to the illustrated drawings, the present invention is not limited by the embodiments and drawings disclosed herein, and various materials including materials by those skilled in the art within the technical scope of the present invention. Of course, modifications can be made.

Electric toothbrush according to the present invention constituted as described above is composed of two bristles geared to the rotary shaft of the operating motor is rotated in a direction opposite to each other to clean the teeth, can brush the upper teeth and lower teeth at the same time to brush teeth Also can effectively remove the foreign matter has the effect of effectively maintaining oral cleanliness.

In addition, the bristles do not penetrate the gums so that the gums are not damaged, as well as the gum massage function has the effect of maintaining the health of the teeth as well as the gums.

In addition, when the bristles are worn out, it is possible to replace the toothbrush head has the advantage of low maintenance costs.

In addition, the center of rotation of the toothbrush head is located in the center is capable of stable rotation, there is an advantage that the damage of the brush head.

Claims (3)

Toothbrush body forming the appearance, An operating motor embedded in the body of the toothbrush and operating when power is applied; An electric motor comprising: first and second toothbrush heads fitted at upper ends of the toothbrush body parts to be coupled to the rotary shaft of the operating motor and arranged in annular arrangements, respectively, and rotating in opposite directions. toothbrush. The method of claim 1, The engaging means includes a main gear gear built on the rotating shaft of the operating motor, A driven gear which is arranged on one of the first and second toothbrush heads, and is bitten by the main gear; A first coupler gear installed on a rotating shaft on which the driven gear is installed; And a second coupler gear arranged on the other axis of rotation so as to engage with the second coupler gear and rotate. The method of claim 1, The bristles installed on the first and second bristle heads are formed to be spaced apart from each other by a predetermined interval to form a plurality of groups, The toothbrush group of the said 2nd bristle head part is alternately located between the bristle group of the said 1st bristle head part.