KR101741326B1 - Electric toothbrush - Google Patents

Electric toothbrush Download PDF

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Publication number
KR101741326B1
KR101741326B1 KR1020150117508A KR20150117508A KR101741326B1 KR 101741326 B1 KR101741326 B1 KR 101741326B1 KR 1020150117508 A KR1020150117508 A KR 1020150117508A KR 20150117508 A KR20150117508 A KR 20150117508A KR 101741326 B1 KR101741326 B1 KR 101741326B1
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KR
South Korea
Prior art keywords
toothbrush
toothbrush body
annular ring
shaft
bristles
Prior art date
Application number
KR1020150117508A
Other languages
Korean (ko)
Other versions
KR20170022478A (en
Inventor
황만석
Original Assignee
황만석
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 황만석 filed Critical 황만석
Priority to KR1020150117508A priority Critical patent/KR101741326B1/en
Publication of KR20170022478A publication Critical patent/KR20170022478A/en
Application granted granted Critical
Publication of KR101741326B1 publication Critical patent/KR101741326B1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/02—Brushes with driven brush bodies or carriers power-driven carriers
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0025—Brushes with elastically deformable heads that change shape during use
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/06—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement
    • A46B7/08—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement as a rotating disc
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/025—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups the bristles or the tufts being arranged in an angled position relative to each other
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/026—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups where the surface of the brush body or carrier is not in one plane, e.g. not flat
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • A46B9/045—Arranged like in or for toothbrushes specially adapted for cleaning a plurality of tooth surfaces simultaneously
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Abstract

The present invention relates to an electric toothbrush, and more particularly, to an electric toothbrush which includes a toothbrush body having a power supply unit built therein, a driving motor that receives power from the power supply unit and rotates the driving shaft, and a toothbrush handle coupled to the toothbrush body, In the toothbrush, the toothbrush handle is rotatably mounted on the toothbrush body, a bearing member is provided between the toothbrush handle and the toothbrush body, and an elastic member is connected between the toothbrush handle and the toothbrush body. The toothbrush body is rotated with respect to the toothbrush body to move back to the toothbrush body by applying a restoring force to the toothbrush body.

Description

[0001] ELECTRIC TOOTHBRUSH [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a power toothbrush, and more particularly, to a power toothbrush capable of easily removing foreign matter in a mouth using motor power.

In general, various devices have been developed for oral health, and electric toothbrush is one of them.

By using a motor to rotate the bristles several times per minute, the electric toothbrush can perform much more brushing than when the user directly wipes his teeth.

Therefore, it is possible to easily remove foreign substances and calculus adhered to the teeth easily.

1, a conventional electric toothbrush disclosed in Registration Practical Utility Model No. 0403315 has a user's intention to perform brushing on the tooth surface, One of the two bristle shafts 2 does not come into contact with the tooth surface when the brush head 2 is not closely contacted with the tooth surface.

Further, in the conventional electric toothbrush, the bristle shaft 2 has a cylindrical shape and the bristles 1 are arranged on the circumferential surface so as to be spaced apart from each other in the shape of a (+) letter shape, So that the foreign matter can not be removed properly.

In addition, since the bristle shaft 2 and the bristle shaft 2 are rotated so as to alternate with each other, there is a problem in that the skin tissue is caught between the bristles 1 when the soft tissue of the mouth is wiped like a tongue, .

Korean Utility Model Registration No. 0403315 (Dec. 2, 2005)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a toothbrush capable of uniformly distributing force to tooth surfaces or skin tissues.

Another object of the present invention is to make it possible to easily remove foreign matter caught in a tooth gap by using bristles of a shape having excellent scrubbing property.

It is still another object of the present invention to provide a toothbrush device and a toothbrush which are configured such that only a driving shaft connected to a toothbrush body by a driving motor rotates and a driving shaft connected to the toothbrush holder is stopped, To be reduced significantly.

According to an aspect of the present invention, there is provided a powered toothbrush comprising: a toothbrush body having a power supply unit built therein; a driving motor for receiving power from the power supply unit and rotating the driving shaft; An electric toothbrush comprising an attached toothbrush body,

Wherein the toothbrush body is rotatably mounted on the toothbrush body, a bearing member is provided between the toothbrush body and the toothbrush body,

And an elastic member is connected between the toothbrush body and the toothbrush body.

The elastic member is composed of an annular ring portion fixed to the toothbrush body and an elastic extension piece having one end fixed to the annular ring portion and the other end fixed to the toothbrush handle.

And the elastic extension member is composed of a thin metal piece and is wound around the annular ring portion and then extends toward the brush portion at positions facing each other about the annular ring portion.

The inner circumferential surface of the annular ring portion is formed with a fitting groove and the outer surface of the toothbrush body is formed with a fitting protrusion so that the fitting protrusion and the fitting groove are not rotated relative to each other when the fitting protrusion and the fitting groove are engaged.

Wherein a plurality of receiving holes are formed along the circumferential direction of the toothbrush holder, a ball constituting the bearing member is inserted from the outside of the receiving hole, the toothbrush handle is wrapped by a cylindrical leaf spring having a shape cut in the longitudinal direction,

The receiving hole has a cross-sectional area that decreases toward the hollow side of the toothbrush body to prevent the ball from falling into the hollow of the toothbrush body.

Wherein the drive shaft has a structure in which a first drive shaft and a second drive shaft are separated from each other,

The toothbrush body is provided with a first driving shaft connected to the driving motor and protruding in the longitudinal direction from an end of the toothbrush body, a first rotor shaft having a polygonal columnar shape is connected to one end in the longitudinal direction of the first driving shaft, A second driving shaft is received in the toothbrush handle, a second rotor shaft having a polygonal columnar shape is formed at the other end of the second driving shaft, and a hollow having a polygonal columnar shape for receiving the first rotor shaft and the second rotor shaft inside And a connecting cylinder.

And a plurality of cut-away portions spaced along the circumferential direction are formed on the circumferential surface of the first rotor shaft of the connecting cylinder.

And a contact protruding portion is formed at the free end of the cutout portion so as to protrude toward the inside of the connecting cylinder.

The bristles are equally spaced along the periphery of the bristle shaft and are spirally formed along the longitudinal direction of the bristle shaft.

According to the electric toothbrush of the present invention as described above, a pair of sole housed in the toothbrush socket can uniformly distribute the force to the upper teeth and the lower teeth, thereby improving the cleaning performance as well as the brushing performance .

In addition, a plurality of bristles arranged in a spiral shape on one sole part are effective to remove foreign matter sandwiched between gaps between the teeth and the tooth smoothly while continuously rotating along the bristles and tooth surfaces corresponding to each other.

 In addition, when wiping the skin tissue in the oral cavity, when the skin tissue accidentally rubs between the bristles between the bristles, only the driving shaft rotates within the toothbrush body, and the driving shaft housed in the toothbrush body is stopped, thereby remarkably reducing the scarring of the skin tissue .

1 is an exploded perspective view showing a toothbrush socket of a prior art electric toothbrush.
2 is an exploded perspective view of a powered toothbrush in accordance with the present invention.
3 is an end view of a powered toothbrush in accordance with the present invention.
4 is a perspective view showing a connection structure of the toothbrush body and the toothbrush body of the electric toothbrush according to the present invention.
5 is a perspective view showing the sole portion of the electric toothbrush according to the present invention.
6 is an operation diagram showing the force distribution operation of the sole portion according to the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 2 to 6. FIG.

2, the electric toothbrush according to the present invention includes a driving motor 200 that receives power from a power supply unit 100 and rotates the driving shaft 500 in one direction, A toothbrush body 400 having a toothbrush body 300 having a built-in power supply unit 100 for supplying toothbrushes and a toothbrush body 400 having a pair of toothbrushes 410 at its tip,

Since the driving motor 200 uses a generally known one-way driving motor 200, a detailed description thereof will be omitted.

The power source unit 100 may be a rechargeable battery or a general battery.

In addition, the toothbrush body 300 is provided with a conventional switch 310 for shutting off the power supplied from the power supply unit 100 to the driving motor 200 and supplying the power to the driving motor 200. When the user uses the electric toothbrush, It can be used while being turned on / off.

A driving shaft 500 installed in the driving motor 200 is rotatably installed inside the toothbrush body 300 and the toothbrush holder 400. At a tip of the toothbrush holder 400, A toothbrush socket 420 is formed.

Specifically, the pair of sole parts 410 may be received in the toothbrush receptacle 420 so as to be detachable, and both ends thereof are rotatably coupled to the toothbrush receptacle 420.

That is, when the life of the sole part 410 is over, it can be separated from the toothbrush socket 420 and replaced with a new sole part 410 easily.

Accordingly, it is not necessary to separate the entire toothbrush holder 400, thereby avoiding waste of material.

4, a driving gear 510 is formed at one end of the toothbrush socket 420 at the distal end of the driving shaft 500 and a driving gear 510 engaged with the driving gear 510, And a driven gear 530 formed on each of the driving gear 510 and the idle gear 520 in the sole portion 410 are disposed.

Therefore, as shown in FIG. 4, the one side portion 410 of the drive shaft 500 is rotated in the clockwise direction and the other side portion 410 is rotated in the counterclockwise direction, thereby removing foreign matter. It is possible to perform a function of gently cleaning the tongue during the reverse rotation of the tongue 500.

The idle gear 520 may be freely rotatably mounted on a frame forming the toothbrush socket 420 as an independent gear.

5, the sole portion 410 includes a pair of bristle shafts 430 on which respective driven gears 530 are formed, and a pair of bristle shafts 430 on which the bristle shafts 430 are formed, And each of the bristles 411 is formed in a spiral shape along the longitudinal direction of the bristle shaft 430. [

That is, the bristles 411 extend spirally from the front end to the rear end, and the bristles 411 facing each other are disposed along the circumference of the bristle shaft 430 at regular intervals.

The number of the bristles 411 is not fixed and can be appropriately selected.

Therefore, when the driven gear 530 meshes with the idle gear 520 and the driving gear 510 and rotates in one direction or the other, the bristles 411 contact the surface of the teeth to perform cleaning. At this time, the bristles 411 located on one side portion 410 rotate downward in contact with the surface of the upper tooth, and the bristles 411 located on the other side portion 410 contact the surface of the lower tooth, So that the teeth are cleaned.

At this time, the four bristles 411 spirally arranged on the single bristle shaft 430 rotate smoothly along the tooth surface with the bristles 411 corresponding to each other and smoothly move the foreign matter caught in the gap between the tooth and the teeth .

Particularly, the bristles 411 are tightly bound together in a row along a hole (not shown) formed in the bristle shaft 430, so that the bristles 411 can be wiped over the tooth surface. That is, the bristles 411 form one surface from the tip to the rear end.

3, the toothbrush holder 400 is rotatably mounted on the toothbrush body 300, and a bearing member 460 is provided between the toothbrush holder 400 and the toothbrush body 300. As shown in FIG.

Specifically, the toothbrush holder 400 is provided with a plurality of balls constituting the bearing member 460 at a position spaced along the longitudinal direction on one side of the inner circumferential surface of the toothbrush body 300 to be coupled with the toothbrush body 300, The first bearing mounting groove 330 and the second bearing mounting groove 340 are formed at positions spaced apart from each other on the outer circumferential surface of the coupling portion 320 positioned at the tip of the toothbrush body 300.

Accordingly, when the toothbrush holder 400 is coupled to the toothbrush body 300, the ball constituting one bearing member 460 is inserted into the first bearing mounting groove 330 to perform a rolling operation, 460 are inserted into the second bearing mounting groove 340 so as to operate in a rolling manner. That is, in a state where the toothbrush holder 400 is inserted into the toothbrush body 300, it is possible to rotate in the forward / reverse directions with respect to the toothbrush body 300.

In the bearing installation structure of the toothbrush body 400 with respect to the toothbrush body 300, the sole portion 410 of one of the rotating pair of the sole portions 410 is in intimate contact with the tooth surface, It is necessary to contact the other side sole portion 410 in a floating state with the tooth surface in the case where it is spaced apart without contacting the surface.

6, when a load is applied to the sole portion 410 which is accommodated in the toothbrush socket 420 and is in contact with the tooth surface T, the opposite portion of the opposite side of the sole portion 410 And is brought into close contact with the tooth surface while rotating around the engaging portion 320 of the toothbrush body 300.

This is because when the ball constituting the bearing member 460 is operated to roll along the first bearing mounting groove 330 and the second bearing mounting groove 340 of the toothbrush body 300 and the toothbrush table 400 is rotated in the toothbrush body 300, As shown in Fig.

Accordingly, the pair of sole parts 410 accommodated in the toothbrush socket 420 can uniformly distribute the force with being positioned parallel to the upper and lower tooth surfaces, thereby improving the cleaning performance as well as the brushing performance.

The toothbrush 400 and the toothbrush body 460 are fixed to the toothbrush body 400 such that the toothbrush body 410 is elastically brought into close contact with the tooth surface and the bearing member 460 can maintain a proper position with respect to the second bearing installation groove 340. [ And an elastic member 600 is connected between the elastic member 600 and the elastic member 600.

That is, one side of the elastic member 600 is fixed to the toothbrush 400, and the other side of the elastic member 600 is inserted and fixed to the coupling portion 320 of the toothbrush body 300.

Here, the elastic member 600 is a means for restoring the toothbrush 400 to its original position after being rotated around the toothbrush body 300 after the toothbrush 400 is removed from its original position where no load is applied.

2, the elastic member 600 includes an annular ring portion 610 fixed to the engaging portion 320 of the toothbrush body 300, and an elastic member 600 fixed to the annular ring portion 610. [ And an extension piece 620.

The elastic extension pieces 620 are made of thin metal pieces and are wound around the annular ring portion 610 and are respectively wound on the annular ring portion 610 toward the soles 410 Lt; / RTI >

The elastic extension piece 620 is fixed to the toothbrush holder 400 and serves to restore the toothbrush holder 400 to the toothbrush body 300.

The elastic extension piece 620 may be inserted into the toothbrush holder 400 or inserted into a fixing groove formed in the toothbrush holder 400.

A fitting protrusion 321 and a fitting protrusion 321 are formed on the outer surface of the fitting portion 320 so that the fitting protrusion 321 and the fitting groove 611 are formed on the inner surface of the annular ring portion 610, There is no relative rotation with each other when combined.

3, a plurality of receiving holes 470 are formed along the circumferential direction of the toothbrush holder 400 to arrange the balls constituting the bearing member 460 in the toothbrush holder 400, The bearing member 460 may be inserted from the outside of the receiving hole 470 and then the bristles 400 may be wrapped with a cylindrical leaf spring 480 having a notch 481 cut in the longitudinal direction.

A protrusion 490 corresponding to the notch 481 may be formed on the outside of the toothbrush holder 400 to prevent the leaf spring 480 from being loosened.

With this configuration, the ball constituting the bearing member 460 is blocked by the leaf spring 480 and is prevented from being released.

In order to prevent the balls constituting the bearing member 460 from falling into the hollow interior of the toothbrush holder 400, the receiving hole 470 preferably has a cross sectional area decreasing toward the hollow.

In the electric toothbrush of the present invention configured as described above, when the brushing is performed, the pair of sole parts 410 are always positioned parallel to the tooth surface to be wiped, and uniform force can be distributed to perform stable brushing .

As described above, the toothbrush 400 is detached from the toothbrush body 300, and the driving shaft 500 is also detachable.

The first driving shaft 550 is connected to the driving motor 200 and is protruded from the coupling portion 320 of the toothbrush body 300. The first driving shaft 550 A first rotor shaft 350 in the form of a polygonal column is connected to one side of the longitudinal direction of the second driving shaft 560 while a second driving shaft 560 is accommodated in the toothbrush 400, A plurality of columnar second rotor shafts 360 are formed and a hollow connecting cylinder 450 for receiving at least a part of the first rotor shaft 350 and the second rotor shaft 360 is installed .

The hollow of the connecting cylinder 450 has a corresponding polygonal column shape so that the first rotor shaft 350 and the second rotor shaft 360 are respectively fitted.

Particularly, a plurality of cutouts 455 are formed on the circumferential surface of the connecting cylinder 450 on the side of the first rotor shaft 350 in the circumferential direction.

That is, when the first rotor shaft 350 and the second rotor shaft 360 are respectively fitted into the hollows of the connecting cylinder 450, smooth power transmission is performed between the first drive shaft 550 and the second drive shaft 560 And the first and second rotor shafts 350 and 550 connected to both sides of the connecting cylinder 450 are coupled to each other by the second rotor shaft 360. The driving shafts 550 and 560, 410 are installed on the bristle shaft 430.

And a contact protrusion 455a is formed at the free end of the cutout 455 so as to protrude toward the inside of the connection cylinder 450. [

In this case, when the first rotor shaft 350 is engaged with the cutout 455, it enters through the open end of the connecting cylinder 450 so that the end of the cutout 455 and the end of the first rotor shaft 350 Since the side surfaces of the first rotor shaft 350 are fixedly installed in contact with the apexes of the contact protrusions 455a after entering, The transmission becomes clear.

If the skin tissue is accidentally caught between the bristles 411 of the one side portion 410 and the bristles 411 of the other side portion 410 when the bristles are wiped, The second rotor shaft 360 is fixed and the first rotor shaft 350 is rotated to open the cutout portion 455 of the connecting cylinder 450 so that power transmission is interrupted and idle.

When the incision 455 of the connecting cylinder 450 is opened, the rotational force of the first driving shaft 550 of the toothbrush body 300 is not transmitted to the second driving shaft 560 of the toothbrush 400 The bristle shaft 430 does not rotate, and thus the sole portion 410 does not rotate (see the dotted line in FIG. 2).

That is, only the driving motor 200 and the first rotor shaft 350 rotate smoothly, but the connecting cylinder 450 and the gear structure, and the bristle shaft 430 and the sole portion 410 do not rotate at all, 411) no longer injures the oral tissue.

Therefore, when performing brushing, the electric toothbrush according to the present invention can easily remove foreign matter caught in the tooth gap by using the brush bristles 411 having excellent scrubbing property, and the two sole parts 410 can be removed from the tooth surface, It is possible to uniformly distribute the force to the tissue, thereby improving the cleaning performance as well as the brushing performance.

According to the present invention, when wiping the skin tissue in the oral cavity, when the skin tissue is interposed between the bristles 411 between the bristles 411 by mistake, only the first driving shaft 550 in the toothbrush body 300 rotates, The second drive shaft 560 housed in the second drive shaft 400 is stopped to significantly reduce scratches on the skin tissue.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It should be understood that various modifications made by the person skilled in the art are also within the scope of protection of the present invention.

100: power supply unit 200: drive motor
300: toothbrush body 310: switch
320: engaging portion 321: insertion hole
330: first bearing mounting groove 340: second bearing mounting groove
350: first rotor shaft 360: second rotor shaft
400: a toothbrush 410: a sole
411: bristles 420: toothbrush socket
430: bristle shaft 450: connecting cylinder
455: cutout portion 460: bearing member
470 ... receiving hole 480: leaf spring
500: drive shaft 510: drive gear
520: idle gear 530: driven gear
600: elastic member

Claims (9)

1. A power toothbrush comprising: a toothbrush body having a power supply unit; a driving motor for receiving power from the power supply unit and rotating the driving shaft; and a toothbrush body coupled to the toothbrush body,
Wherein the toothbrush body is rotatably mounted on the toothbrush body, a bearing member is provided between the toothbrush body and the toothbrush body,
An elastic member is connected between the toothbrush body and the toothbrush body,
Wherein the elastic member comprises an annular ring portion fixed to the toothbrush body and an elastic extension piece having one end fixed to the annular ring portion and the other end fixed to the toothbrush handle,
The elastic extension member is composed of a thin metal piece and is wound around the annular ring part, and is extended to the brush part at a position facing each other with the annular ring part as a center, and is fixed to the toothbrush holder Wherein the electric toothbrush further comprises:
delete delete The method according to claim 1,
Wherein an inner circumferential surface of the annular ring portion is formed with a fitting groove and an outer circumferential surface of the toothbrush body is formed with a fitting protrusion so that the fitting protrusion and the fitting groove are not rotated relative to each other when the fitting protrusion is engaged.
The method according to claim 1,
Wherein a plurality of receiving holes are formed along the circumferential direction of the toothbrush holder, a ball constituting the bearing member is inserted from the outside of the receiving hole, the toothbrush handle is wrapped by a cylindrical leaf spring having a shape cut in the longitudinal direction,
Wherein the receiving hole has a cross-sectional area that is decreased toward the hollow of the toothbrush body to prevent the ball from falling into the hollow of the toothbrush body.
delete delete delete delete
KR1020150117508A 2015-08-20 2015-08-20 Electric toothbrush KR101741326B1 (en)

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KR1020150117508A KR101741326B1 (en) 2015-08-20 2015-08-20 Electric toothbrush

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Application Number Priority Date Filing Date Title
KR1020150117508A KR101741326B1 (en) 2015-08-20 2015-08-20 Electric toothbrush

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KR20170022478A KR20170022478A (en) 2017-03-02
KR101741326B1 true KR101741326B1 (en) 2017-05-30

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KR102266298B1 (en) * 2019-05-09 2021-06-16 송인규 Toothbrush

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KR100403315B1 (en) 2001-06-30 2003-10-30 주식회사 하이닉스반도체 Equalization and precharge control signal generating device of data bus

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