KR101222366B1 - Roller type of power toothbrush - Google Patents

Abstract

The roller-type electric toothbrush according to the present invention has a hollow body and a rear side of which is concave so as to be gripped by hand, and a main body having a cover portion covering the bristles on the tip side, and for supplying power to the inside of the main body. A drive motor driven by receiving electric power from the rechargeable battery and the rechargeable battery, a switch for driving the drive motor forward and backward to the outside of the main body, and mounted on the drive motor to receive power from the drive motor, and to the front end side of the main body. A drive shaft extending to protrude, a worm gear that is fastened to the tip of the drive shaft to receive power from the drive shaft, and a worm wheel that is engaged with the worm gear to receive power from the worm gear; and is protruded on both sides of the worm wheel, and is driven from the worm wheel. Roller type rotated by receiving the driven shaft rotated by receiving the, and both ends of the driven shaft, respectively Contains the bristles of the womb.

Therefore, according to the present invention, since the bristles of the roller shape are rotatable in the forward and reverse directions by the driving device, the upper teeth are downward, the lower teeth are the bristles are rotated in the direction of the tooth to the tooth and the teeth or between the teeth and gums. Effective removal of trapped food scraps or plaques helps to ensure proper brushing.

 Electric toothbrush

Description

Roller type of power toothbrush

The present invention relates to an electric toothbrush in which the bristles are driven by power to brush the teeth, and in particular, a plurality of bristles having a cylindrical shape are rotated up and down in accordance with the grain direction of the tooth due to a driving device built in the toothbrush. The present invention relates to a roller-type electric toothbrush that can effectively remove foreign matters and perform proper brushing.

As is well known, the purpose of brushing is to clean the tooth surface and between teeth and gums to prevent tooth decay or periodontal disease, and to remove bad breath and bacteria in the oral cavity.

The general toothbrush for brushing is a brush head is planted at the tip of the rod-shaped toothbrush rod, and the handle is integrally formed at the rear end of the toothbrush rod, so that the user brushing the toothbrush while shaking the brush head up, down, left, and right to brush teeth. have.

On the other hand, the area where the brush head is in contact with the teeth most needs to brush teeth is the area where the gum and teeth are the most accumulated foreign matter, the dental method in the dental industry to brush the teeth up and down to the teeth It is known to intensively remove foreign substances in the area where the gum and teeth are in contact with each other.

Since the general stick toothbrushes such as the above brush only one side, they cannot brush their teeth effectively to the areas that require brushing of the gums or teeth, and in the case of children, the elderly, or those who are uncomfortable, they need to brush more properly. There was a problem that can not be.

As a solution for solving this problem, an electric toothbrush has been proposed in which an electric device is built in and the bristles are driven by power.

In the conventional electric toothbrush, the bristle is rotated irrespective of the grain (direction) of the tooth, so that the bristles rotated in one direction without effectively removing foreign substances remaining in the area where the gum and the tooth come into contact with the teeth of the gum are in contact with the tooth. By stimulating the boundary, it hurts the teeth and gums, which is harmful to the health of the teeth and gums, and even more seriously damages the teeth, causing them to dig into the dentin of the teeth and kill the nerves.

In addition, the electric toothbrush as described above has been inconvenient in use that the majority of the rotation only in one direction to clean the upper and lower teeth by holding both hands alternately.

An object of the present invention devised to solve the above problems, the plurality of bristle of the cylindrical due to the drive device built in the toothbrush is rotated up and down in accordance with the grain direction of the tooth effectively remove the foreign matter accumulated in the interdental. It is to provide a roller-type electric toothbrush that can perform a correct brushing.

The above object is achieved by the following configuration provided in the present invention.
The main body is hollow and the rear side is formed to be concave so that it can be gripped by hand, and a cover part covering the bristles on the tip side is formed, and is composed of a structure that is separated and fastened; A drive motor driven by receiving electric power from a rechargeable battery, a switch for driving the drive motor to the outside of the main body in a forward and reverse direction, and mounted to the drive motor to receive power from the drive motor, and to protrude toward the front end of the main body And a worm gear that is fastened to the front end of the drive shaft and receives the power of the drive shaft and is engaged with the worm gear to receive the power of the worm gear and is protruded on both sides of the worm wheel to receive power from the worm wheel. A driven shaft capable of low speed rotation and a driven shaft can be rotated at the worm wheel side end of the driven shaft. Bearings are configured to be supported so as to support each other, and the roller bristles are rotated by receiving both ends of the driven shaft, respectively, one side end of the bristle is formed in the inclined portion of the tapered or curved shape inward Both ends of the driven shaft accommodated in the bristles are formed with an extended portion extending than the diameter of the driven shaft, a groove portion having the same shape as the expanded portion is formed inside the bristles, and any one of the extended portion and the bristles is soft Characterized in that made.

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As described above, the roller-type electric toothbrush according to the present invention has a roller-shaped bristle that can be rotated forward and backward by a driving device, so that the upper bristle is downward and the lower bristle is upward. It effectively removes food scraps or plaque between teeth and teeth or between teeth and gums, thereby effectively brushing teeth.

In addition, the driving shaft mounted on the driving motor that transmits power to the bristles reduces the rotational speed transmitted to the bristles through the worm gear and the worm wheel, so that the powerful rotational force is transmitted to the bristles, thereby removing the gum disease by removing the foreign substances accumulated long between the interdental. It is effective in preventing.

In addition, the bristle is composed of the structure that is inserted and detached by the extension of the driven shaft, the structure of the bristle is fitted, but the removable structure can be individually selected according to the size and strength of the bristle and can only disinfect the bristle separately There is an effect of extending the life as a toothbrush.

Hereinafter, with reference to the accompanying drawings will be described in detail a roller-type electric toothbrush proposed in a preferred embodiment of the present invention.

1 is a perspective view showing a preferred form of the roller-type electric toothbrush according to the present invention, Figure 2 is a cross-sectional perspective view showing a preferred form of the roller-type electric toothbrush according to the present invention, first of all the roller-type electric toothbrush of the present invention And briefly described with reference to Figure 2, the main body 10 is composed of a drive motor 20 and the rechargeable battery 15 therein, and a switch for driving the drive motor 20 to the outside of the main body 10 ( 25, a drive shaft 30 mounted to the drive motor 20, a worm gear 40 and a worm wheel 50 transmitting power of the drive shaft 30, and a driven shaft fastened to the worm wheel 50. 60) and bristles 70 which are fastened to both ends of the driven shaft 60 and rubbed with teeth.

The main body 10 is configured to be able to directly brush teeth by gripping with a hand, and the inside is hollow to constitute a drive motor 20, a rechargeable battery 15, and a drive shaft 30 to facilitate rotation of the bristle 70. One side is formed to be concave so as to be gripped by the hand to the rear side, and a cover portion 13 is formed to protect the bristle 70 for cleaning the teeth at the tip side.

In addition, the main body 10 is preferably composed of a structure that is separated and fastened to repair or replace when the internal drive motor 20 and the rechargeable battery 15 is damaged.

The drive motor 20 is configured inside the main body 10 and receives power from the rechargeable battery 15 to apply power to the drive shaft 30 to be described later to be configured to rotate the brush head 70 and more specifically The direction of rotation is set in the forward and reverse directions from the switch 25 configured outside the main body 10 to determine the rotation direction of the bristles 70.

Although not shown in the drawings, the driving motor 20 according to the present invention may be driven by being supplied with power by the rechargeable battery 15 or may be driven by being powered by a conventional power line.

In addition, the switch 25 may control the rotational direction of the brush head 70 finally by controlling the rotational direction of the driving motor 20 in the forward and reverse direction, while at the same time turning the power of the drive motor 20 on and off. It is configured to be.

The drive shaft 30 is mounted to the drive motor 20 is extended to protrude toward the front end of the main body 10 is configured to transmit power to the driven shaft 60 to be described later receives the power from the drive motor 20 In addition, the bearing 35 is fastened to the driving motor 20 side end of the driving shaft 30 and the front end side end of the main body 10 so as to rotatably support the driving shaft 30 extending inside the main body 10. It is configured to be.

As shown in FIG. 3, the front end of the drive shaft 30 includes a worm gear 40 engaged with the drive shaft 30, and a worm wheel 50 engaged with the worm gear 40. It is configured to reduce the power of the drive motor 20 to rotate at a high speed while transmitting a rotational force of.

As the power of the drive motor 20 is decelerated by the worm gear 40 and the worm wheel 50, a powerful rotational force can be transmitted, thereby increasing the frictional force with the teeth, thereby effectively cleaning the teeth.

The driven shaft 60 is engaged with the worm wheel 50 in such a way that the suspension is accommodated in the worm wheel 50 so as to protrude on both sides of the worm wheel 50 and the worm gear 40 and the worm wheel 50 of the driving motor 20. It is configured to receive low speed power and to rotate at low speed.

The worm wheel 50 side end portion of the driven shaft 60 is configured to configure the bearing 65 so as to rotatably support the driven shaft 60.

The bristle 70 is composed of a groove to the inside and is composed of a pair to accommodate each end of the driven shaft 60 is configured to be rotated by receiving power from the driven shaft 60, and to clean the teeth, The bristle 70 is preferably configured in the form of a roller so that the teeth can be made without lying down or twisting in several directions.

In addition, the bristle 70 is preferably made of a length that can cover about two front teeth, it is preferable to form a soft material rather than too stiff material.

Here, as shown in FIG. 8, the deceleration motor 80 is configured to be driven at a deceleration in place of the drive motor 20 into the main body 10 so that the bristle 70 can rotate at a low speed to properly brush teeth. .

As the reduction motor 80 is configured, the first helical gear 90 is fastened to the driving shaft 30 at the distal end of the driving shaft 30 in place of the worm gear 40 and the worm wheel 50 for decelerating rotation. And a second helical gear 100 engaged with the first helical gear 90 at a right angle to receive the power of the first helical gear 90, and the driven shaft 60 stops the second helical gear. It is received by the gear 100 and is fastened to the second helical gear 100 in a form protruding on both sides of the second helical gear 100.

Therefore, the first and second helical gears 90 and 100 are configured to transfer the power supplied from the reduction motor 80 to the driven shaft 60 without deceleration to achieve low speed rotation of the bristles 70.

Here, as shown in FIGS. 10A and 10B, one side end of the bristle 70 is formed with an inclined portion 77 formed in a tapered shape or a curved shape inwardly and brushed to a molars or wisdom teeth deep in teeth. Is possibly configured.

Here, as shown in FIG. 9, both ends of the driven shaft 60 accommodated in the bristle 70 are extended than the diameter of the driven shaft 60 to form an extension 63 which is engaged in the bristle 70. The inside of the bristles 70 forms a groove part 70h having the same shape as the expansion part 63 so that the bristles 70 are fitted so as to prevent the bristles 70 from being detached even when brushing teeth. Desorption is possible to select the size and strength of the bristle 70, and can only disinfect the bristle 70 separately has the effect of extending the life as a toothbrush.

The expansion portion 63 is composed of a soft, it is preferable that the insertion or detachment is easily configured in the groove portion (70h) formed in the bristles 70.

In addition, the expansion portion 63 is made of a metallic material in the same way as the driven shaft and the bristle 70 is made of a soft material such as plastic so that the expansion portion 63 is easily removable inside the bristle 70. May be

The roller-type electric toothbrush according to the present invention thus formed acts as follows.

First, the toothpaste is applied to the bristles 70 soaked and the lower portion of the main body 10 by hand to operate the switch 25 to rotate the drive motor 20 in the forward direction.

When the drive motor 20 rotates in the forward direction, the worm gear 40 coupled with the drive shaft 30 and the drive shaft 30 is interlocked and engaged with the worm wheel 50 and the worm wheel 50 engaged with the worm gear 40. The driven shaft 60 is rotated so that the bristle 70 is rotated. At this time, the worm gear 40 and the worm wheel 50 cause the power of the driving motor 20 to be decelerated to reduce the power to the bristle 70. The bristle 70 is rotated at low speed.

When the bristle 70 is rotated in the forward direction, as shown in Figure 5 (a), (b), (c) the bristle 70 is sequentially rubbed along the teeth from the front teeth of the upper teeth to the molar teeth of the teeth To clean the front and back, and to brush the bristle (70) with the tongue to wipe.

When the brushing of the upper tooth is completed, when the driving motor 20 is rotated in the reverse direction through the switch 25, the bristles 70 are also rotated in the reverse direction, as shown in FIGS. 6 (a) and (b). From the front teeth to the molar teeth by rubbing in sequence, you can wipe the front and back of the lower teeth.

In addition, as shown in FIG. 7, the bristles 70 may be rubbed in the lateral direction of the teeth to achieve a rinsing action of the teeth.

Therefore, the bristles 70 are rotated in the grain direction of the teeth through the switch 25, thereby removing food waste or plaques sandwiched between the teeth and the teeth or between the teeth and the gums as shown in FIGS. 4 (a) and (b). Effectively removing the gum bristles by removing the foreign matter by rubbing the bristle 70 to the corner of the tooth that the bristles 70 do not reach by applying an appropriate pressure to the bristle 70.

1 is a perspective view showing a preferred form of a roller-type electric toothbrush according to the present invention,

Figure 2 is a cross-sectional perspective view showing a preferred form of the roller-type electric toothbrush in accordance with the present invention

Figure 3 is a side cross-sectional view showing a preferred form of the worm gear and the worm wheel in accordance with the present invention,

Figure 4 (a), (b) is an exemplary view showing a preferred form of wiping the upper teeth and lower teeth according to the present invention,

Figure 5 (a), (b), (c) is an exemplary view showing a preferred form of wiping the tooth and the tongue in accordance with the present invention,

Figure 6 (a), (b) is an exemplary view showing a preferred form of cleaning the lower teeth according to the present invention,

Figure 7 is an illustration showing a preferred form of rubbing the bristles in the transverse direction of the upper and lower teeth according to the present invention,

8 is an exemplary view showing a preferred form in which the bristles are rotated at a low speed by the reduction motor and the first and second helical gears according to the present invention;

9 is an exemplary view showing a preferred form in which the expansion portion of the driven shaft according to the invention is inserted into the bristles,

Figure 10 (a), (b) is an exemplary view showing a preferred form in which the inclined portion is formed on the bristles according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: body 15: rechargeable battery

20: drive motor 25: switch

30: drive shaft 40: worm gear

50: worm wheel 60: driven shaft

70: brush head 80: reduction motor

90: first helical gear 100: second helical gear

Claims (5)

The main body 10 is formed of a structure in which the inside is hollow and a cover portion 13 is formed in a concave shape so as to be gripped by a hand at the rear side and covers the bristles 70 at the tip side, and is separated and fastened, A rechargeable battery 15 for supplying power to the inside of the main body 10 and a driving motor 20 driven by receiving electric power from the rechargeable battery 15; A switch 25 for driving the drive motor 20 to the outside of the main body 10 in the forward and reverse directions; A drive shaft 30 mounted on the drive motor 20 to receive power from the drive motor 20 and extending to protrude toward the front end of the main body 10; A worm wheel 50 coupled to the distal end of the drive shaft 30 and engaged with the worm gear 40 and the worm gear 40 to receive the power of the drive shaft 30, and receiving the power of the worm gear 40; A driven shaft 60 which is fastened to protrude on both sides of the worm wheel 50 to receive low-speed rotation by receiving power from the worm wheel 50; Bearings 65 respectively configured to rotatably support the driven shaft 60 at the worm wheel 50 side end of the driven shaft 60; To include a bristle 70 in the form of a roller that rotates to accommodate each end of the driven shaft 60, respectively, One end of the bristle 70 is inclined portion 77 is formed in the tapered or curved shape inward, Both ends of the driven shaft 60 accommodated in the bristle 70 is formed with an extension portion 63 extending than the diameter of the driven shaft 60, The groove portion 70h having the same shape as the expansion portion 63 is formed inside the bristle 70, Roller-type electric toothbrush, characterized in that any one of the expansion portion 63, the bristle 70 is made of soft. delete delete delete delete

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