KR20090030829A - Separable tooth brush - Google Patents

Abstract

A separable tooth brush is provided, which can prevent the brush part from rotating in the state of fixing the handle part. A separable tooth brush comprises: a handle part(100); a brush part(200) which is detachable from the handle part; first and second engaging parts(300,400) combining and separating the handle part and brush part; and first and second rotation prevention portions(500,600) which are formed in the location adjacent to each first and the second engaging part and are combined with them and prevent the brush part from rotating in the state of fixing the handle part.

Description

Detachable Toothbrush {SEPARABLE TOOTH BRUSH}

The present invention relates to a detachable toothbrush, and more particularly, to a toothbrush that is separated from the semi-permanent handle portion and the waste brush portion.

In general, the toothbrush is used as a means of brushing the tooth with a toothpaste in order to prevent tooth decay of the teeth and to remove bad breath, other foreign matters, etc. after the user or after eating various foods.

The toothbrush is substantially divided into a brush part coupled to a brush in contact with the tooth in the state where the toothpaste is attached, and a handle part made of a flexible material to be combined with the brush part and elastically brushable.

Recently, a detachable toothbrush that can be detached from the handle part has been in the spotlight in order to reduce the cost as much as possible due to long-term use of the toothbrush. That is, when using the detachable toothbrush, the user only needs to replace the brush part, which is a consumable part, except for the semi-permanent handle part.

The detachable toothbrush includes first and second coupling parts for coupling to each other in the brush part and the handle part. Specifically, it is common that the first and second coupling portions have a protrusion shape, one of which has a protrusion shape, and the other has a groove shape into which the protrusion shape is inserted while hooking. As a related art in the related art, Utility Model Publication No. 2001-0113203 discloses a toothbrush which can replace the brush portion.

On the other hand, as a method of brushing the teeth to prevent damage to the user's teeth and gums is most commonly wiped as covering from the gum to the teeth. In other words, the upper teeth are cleaned from the gums from the gums from the top to the bottom and the lower teeth from the bottom to the top. In order to brush the teeth properly, the user repeatedly rotates the detachable toothbrush while holding the handle part.

However, when the user repeatedly rotates the detachable toothbrush while holding only the handle portion as described above for correct brushing of teeth, there is no means for stably transmitting the rotation of the handle portion to the brush portion. There is a problem that the replacement time of the brush portion is shortened.

Accordingly, the present invention has been made in view of such a problem, and an object of the present invention is to provide a detachable toothbrush which can prevent the brush portion from rotating while the handle portion is fixed.

In order to achieve the above object of the present invention, the detachable toothbrush according to one feature includes a handle portion, a brush portion, a first coupling portion, a second coupling portion, a first rotation preventing portion and a second rotation preventing portion. The brush part has a structure detachable from the handle part. The first and second coupling parts are formed in contact portions of the handle part and the brush part, respectively, to couple and separate the handle part and the brush part. The first and second anti-rotation portions are formed at positions adjacent to the first and second coupling portions, respectively, to engage with each other and prevent the brush portion from rotating while the handle portion is fixed.

One of the first and second anti-rotation parts includes a protrusion, and the other includes a groove into which the protrusion is inserted. Thus, the protrusion is formed long in one direction. Alternatively, the protrusions may include a plurality of protrusions, and the protrusions may be formed to be spaced apart from each other in one direction. In addition, the engaging surface of the protrusion and the groove may be formed to be tapered.

According to such a detachable toothbrush, in addition to the first and second engagement portions for coupling them to the handle portion and the brush portion, first and second anti-rotation portions are formed in each to rotate the brush portion when the handle portion is fixed. By preventing it, the said brush part can be used for the original lifetime.

Hereinafter, with reference to the accompanying drawings will be described in detail the removable toothbrush according to an embodiment of the present invention. As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements. In the accompanying drawings, the dimensions of the structures are shown in an enlarged scale than actual for clarity of the invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

1 is a schematic perspective view showing a detachable toothbrush according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the detachable toothbrush shown in FIG.

1 and 2, the detachable toothbrush 1000 according to the exemplary embodiment of the present invention includes a handle part 100, a brush part 200, a first coupling part 300, and a second coupling part 400. The first rotation preventing part 500 and the second rotation preventing part 600 are included.

The handle portion 100 is a portion to grab when the user brushing teeth. Thus, the handle portion 100 may generally have a long, elongated bar shape in order to be easily gripped by the user's hand. In addition, the outer surface of the handle portion 100 may be shaped similarly to the shape of the finger is formed when the user grips.

The handle part 100 is made of a flexible material to enable the user to elastically brush. This is to prevent the user from being injured by applying excessive pressure to the teeth when the user moves freely while holding the handle part 100. In addition, it is to suppress to some extent the handle portion 100 is broken by the user's force.

For example, the handle part 100 may be made of a resin material such as poly propylene (PP) or polyethylene terephthalate (PET).

On the other hand, the handle portion 100 may be attached to the rubber on its outer surface to prevent the user from sliding during brushing. At this time, the rubber is preferably attached to a position in contact with the end of the finger that the user can slide more easily due to the concentrated force of the handle portion 100.

The brush part 200 has a structure detachable from the handle part 100. The brush unit 200 is substantially composed of a brush 210 for removing foreign substances in contact with the user's teeth and the body 220 is coupled to the handle portion 100 while the brush 210 is fixed.

The brush 210 typically has a shape that is mostly perpendicular from the body 220. In this case, a portion of the brush 210 may be inclined from the body 220 in order to contact the brush 210 to a minute gap of the user's teeth.

The brush 210 may be made of a nylon material having strong chemical resistance and hygiene. However, the nylon material has a relatively low durability and may have a shape lying down sideways when the brush is used for a long time. On the other hand, recently, as the brush 210, poly butylene terephthalate (PBT) having excellent durability may be used. The brush 210 may be processed to prevent the end of injury to the gums of the user. Specifically, the brush 210 may be polished round the end.

The body 220 may have a structure extending from the handle part 100. This is because, when the body 220 is coupled to the handle portion 100, it is aesthetically good that the shape has an integral structure.

The first coupling part 300 is formed at a portion of the handle part 100 in contact with the body 220 of the brush part 200. The second coupling part 400 is formed at a portion of the body 220 of the brush part 200 in contact with the handle part 100.

The first and second coupling parts 300 and 400 are coupled to each other to integrate the brush part 200 and the handle part 100. In addition, the first and second coupling parts 300 and 400 may be easily separated by physical force. As a result, the brush part 200 may have a structure that can be detached from the handle part 100.

The first coupling part 300 may include a first protrusion 310 protruding from the handle. The first protrusion 310 may be integrally manufactured when the handle part 100 is manufactured. In contrast, the first protrusion 310 may be manufactured separately and attached to the handle part 100.

The second coupling part 400 may include a first groove 410 into which the first protrusion 310 is inserted. In this case, a first hook part 320 is formed in the first protrusion 310, and the second coupling part 400 is hooked with the first hook part 320 inside the first groove 410. A second hook portion 420 may be formed to engage.

The second hook portion 420 may have an isosceles triangle in a protruding shape so that the same stress is applied when the first protrusion 310 is separated from when the first protrusion 310 is inserted into the first groove 410.

The second hook portion 420 may have an elastic force to facilitate its operation when the first protrusion 310 is separated from when the first protrusion 310 is inserted into the first groove 410. Specifically, the second hook portion 420 may have an elastic force in a direction crossing the first protrusion 310 which is cut and inserted from the body 220. Accordingly, the first hook part 320 may have a shape recessed into an isosceles triangle shape according to the shape of the second hook part 420. The first and second hook portions 320 and 420 may be formed in the first groove 410 and the first protrusion 310 that are opposite to each other.

In addition, the first protrusion 310 has a first flat portion 330 is formed on one side. Thus, a second flat portion 430 is formed inside the first groove 410 of the second coupling portion 400 in contact with the first flat portion 330. The first and second flat parts 330 and 430 serve to guide the rotating part to the brush part 200 when the handle part 100 rotates.

The inner side of the first groove 410 of the first protrusion 310 and the second coupling portion 400 may be made of a metal material in order to strengthen the coupling and excellent durability. The first and second coupling parts 300 and 400 may be formed opposite to the brush part 200 and the handle part 100 in some cases.

The first anti-rotation part 500 is formed at a position adjacent to the first coupling part 300. The second anti-rotation part 600 is formed at a position adjacent to the second coupling part 400. The first and second anti-rotation parts 500 and 600 are coupled to each other to prevent the brush part 200 from rotating while the handle part 100 is fixed.

The second anti-rotation part 600 may include a second protrusion 610 protruding from the brush part 200. The second protrusion 610 may be manufactured integrally when the brush part 200 is manufactured. In contrast, the second protrusion 610 may be manufactured separately and attached to the brush part 200.

The first anti-rotation part 500 may include a second groove 510 into which the second protrusion 610 is inserted. That is, the second protrusion 610 is inserted into the second groove 510 to be coupled, thereby preventing the brush part 200 from rotating when the handle part 100 is fixed.

The inner side of the second protrusion 610 and the second groove 510 may be made of a metal material in order to strengthen the coupling and excellent durability. The first and second anti-rotation parts 500 and 600 may be formed oppositely to the handle part 100 and the brush part 200, as the case may be.

Therefore, in addition to the first and second coupling parts 300 and 400 for coupling them to the handle part 100 and the brush part 200, the first and second rotation preventing parts 500 and 600. By forming the respective to prevent the brush unit 200 from rotating when the handle portion 100 is fixed, it is possible to use the brush portion 200 as the original life.

3 is a view illustrating a second anti-rotation part according to an embodiment of the brush part of the detachable toothbrush illustrated in FIG. 2, and FIG. 4 is a view illustrating a state in which the second anti-rotation part of FIG. 3 is inserted.

In the present embodiment, the first and second anti-rotation parts may be the same as the configuration of FIGS. 1 and 2, and will be described in detail using the same reference numerals.

2, 3 and 4, the second protrusion 610 of the second anti-rotation part 600 formed at a portion of the brush part 200 to be joined to the handle part 100 is the handle part 100. ) Is formed long along one direction of rotation.

That is, the second protrusion 610 may be rounded while partially surrounding the second coupling part 400 formed in the brush part 200. Thus, the shape of the second groove 510 of the first rotation preventing part 500 is also formed corresponding to the second protrusion 610. In contrast, the second protrusion 610 may be formed while surrounding the entirety of the second coupling part 400. In contrast, the second protrusion 610 may be formed in a linear direction by a predetermined length around the second coupling portion 400.

As a result, the first and second rotation preventing parts 500 and 600 may more stably and strongly prevent the brush part 200 from rotating when the handle part 100 is fixed. In addition, since the second protrusion 610 is formed relatively large, it is possible to minimize the possibility of being broken by an external force.

5 is a view illustrating a second anti-rotation part according to another embodiment of the brush part of the detachable toothbrush illustrated in FIG. 2.

Referring to FIG. 5, a plurality of second protrusions 262 of the second anti-rotation part 260 formed at a portion of the brush part 250 to be joined to the handle part 100 of FIG. 2 is provided.

The second protrusions 262 are formed to be spaced apart from each other at regular intervals in a direction in which the handle part 100 of FIG. 2 rotates around the second coupling part 400 formed in the brush part 250. . At this time, each of the protrusions may be formed long by a predetermined length along the rotation direction of the handle portion (100 of FIG. 2).

As a result, since the second protrusions 262 are formed in plural, even when some of the second protrusions 262 are broken by a force applied from the outside, the handle part 100 of FIG. 2 is fixed. In the brush unit 250 can be prevented from rotating.

FIG. 6 is a view illustrating a state in which the second anti-rotation part is inserted according to another embodiment of the brush part of the detachable toothbrush illustrated in FIG. 2.

Referring to FIG. 6, the second protrusion 712 of the second anti-rotation part 710 of the brush part 700 is formed in the second groove 762 of the first anti-rotation part 760 of the handle part 750. When inserted, the mating surface is tapered.

That is, the second protrusion 712 is formed on the outer surface of the first tapered surface 714 narrower away from the body 220 of the brush portion 700, the first rotation preventing portion 760 The second tapered surface 764 corresponding to the first tapered surface 714 is formed inside the second groove 762.

As a result, the second protrusion 712 is formed such that the inlet of the second groove 762 is wider than the width of the first insertion end of the second protrusion 712 into the second groove 762. The operation of inserting into the two grooves 762 can be performed more simply. In addition, when the second protrusion 712 is inserted into the second groove 762, the insertion may be guided through the first and second tapered surfaces 714 and 764.

On the other hand, a magnetic body may be formed on the coupling surface of the second protrusion 712 and the second groove 762 to improve the mutual coupling force. In addition, the second protrusion 712 may be hooked to the second groove 762.

Although the detailed description of the present invention has been described with reference to the preferred embodiments of the present invention, those skilled in the art or those skilled in the art will have the idea of the present invention described in the claims to be described later. It will be understood that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

The present invention as described above forms a first and a second anti-rotation portion of the handle portion and the brush portion of the detachable toothbrush, respectively, to prevent the brush portion from rotating when the handle portion is fixed, so that the brush portion can be used in its original life. It can be used to

1 is a schematic perspective view of a detachable toothbrush according to an embodiment of the present invention.

2 is a cross-sectional view of the detachable toothbrush shown in FIG.

3 is a view illustrating a second anti-rotation part according to an embodiment of the brush part of the detachable toothbrush illustrated in FIG. 2.

4 is a view illustrating a state in which the second anti-rotation part of FIG. 3 is inserted.

5 is a view illustrating a second anti-rotation part according to another embodiment of the brush part of the detachable toothbrush illustrated in FIG. 2.

FIG. 6 is a view illustrating a state in which the second anti-rotation part is inserted according to another embodiment of the brush part of the detachable toothbrush illustrated in FIG. 2.

<Explanation of symbols for main parts of the drawings>

100: handle portion 200: brush portion

300: first coupling part 310: first groove

400: second coupling part 410: first protrusion

500: first rotation preventing portion 510: second groove

600: second rotation preventing portion 610: second projection

1000: detachable toothbrush

Claims (6)

Handle portion; A brush part detachable from the handle part; First and second coupling parts formed at a contact portion of each of the handle part and the brush part to couple and separate the handle part and the brush part; And And a first and second anti-rotation portion formed at positions adjacent to each of the first and second engagement portions to engage with each other, and preventing the brush portion from rotating while the handle portion is fixed. The detachable toothbrush of claim 1, wherein one of the first and second anti-rotation parts includes a protrusion, and the other includes a groove into which the protrusion is inserted. The detachable toothbrush of claim 2, wherein the protrusion is formed to extend in one direction. The detachable toothbrush of claim 2, wherein the protrusions include a plurality of protrusions, and the protrusions are spaced apart from each other in one direction. The detachable toothbrush of claim 2, wherein the engaging surface of the protrusion and the groove is formed to be tapered. The detachable toothbrush of claim 1, wherein one of the first and second engagement portions includes a protrusion and the other includes a groove into which the protrusion is inserted while hooking.

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