KR100838174B1 - Toothbrush - Google Patents

Abstract

A toothbrush is provided to allow an excellent brushing capacity, and to carry out an effective cleansing in all brushing directions, as well as to achieve an effective removal of a tartar on surfaces of teeth. A toothbrush includes: a main body(2); a head(3), on which many bristles(8), building up many groups of collected bristles with a specific shape and arrangement, are transplanted, and around which a gingiva protecting rubber(7a) and a tongue ringing rubber(7e) are arranged; a grip(4), having a good holding property for a user; and a neck(5), having a proper elastic strength, and connecting the head with the grip; wherein all parts are shaped as one body, and wherein first rubber shaping portions(6) are formed along the upside, underside and lateral sides respectively and collected at the end of the grip, and second rubber shaping portions(7) are formed along both upper and lower sides respectively.

Description

Toothbrush {TOOTHBRUSH}

1A is a perspective view of a toothbrush in accordance with one preferred embodiment of the present invention.

FIG. 1B is a perspective view of the bottom of the head of the toothbrush of FIG. 1A. FIG.

Figure 2 is a perspective photograph showing the shape and arrangement of the toothbrush focusing hair implanted in the head in the toothbrush of Figure 1a.

3 is a schematic diagram of FIG. 2.

4 is a schematic plan view showing the form and arrangement of the focusing hair in FIGS. 2 and 3.

Figure 5a is a perspective view of a toothbrush according to another preferred embodiment of the present invention.

5B is a perspective view of the bottom of the head of the toothbrush of FIG. 5A.

6 is a perspective photograph showing the shape and arrangement of the toothbrush focusing hair implanted into a toothbrush head substantially the same as in FIG. 5A.

7A and 7B are planar photographs and side photographs of FIG. 6, respectively.

8 is a schematic view of a toothbrush head substantially the same as in FIG. 6.

It is a schematic top view which shows the form and arrangement | positioning state of the focusing hair in the toothbrush head of FIG. 6 or FIG.

FIG. 10 is an exemplary photograph showing a state in which the focusing hair of the toothbrush head essentially the same as that of FIG. 2 is in contact with a tooth when brushing.

11 is a partial cross-sectional view showing a state where the focusing hair is melt-cured in an anchorless type of an inmold method in the toothbrush head according to the present invention.

12 is an enlarged photograph showing a circular end portion of the bristles constituting the focus bristle in the toothbrush head according to the present invention.

Figure 13 is an exemplary photograph showing a state in which the focusing hair is in contact with the teeth when brushing in the conventional toothbrush head.

-Explanation of symbols for the main parts of the drawings-

1, 1a: Toothbrush according to one preferred embodiment of the present invention

2: body 3: head

4: grip part 5: neck part

6: first rubber forming portion 7: second rubber forming portion

7a, 7b: Rubber for protecting gums 7c: Rubber for gum massage

7d: dental rubber 7e: tongue cleaning rubber

8: brush head

10: front tip focusing 11: rear tip focusing

12: Blocking effect to prevent blocking effect 13: Focusing point to prevent blocking effect

14: Pin type focus hat 15: Pin type center (or cross) focus hat

16: pin type centered focus

17: Arc-shaped (for removing the bacterial film)

The present invention relates to a toothbrush having a toothbrush focusing hair of a particular shape and arrangement for effectively removing plaque from a tooth when brushing, and more particularly, to improve interdental block (ABE) anti-blocking effect. It is not only suitable for those with uneven teeth by strengthening interdental brushing function through the bristles, but also it can effectively remove tartar and plaque on the surface of teeth by the circular bristle bacterial membrane removal. In addition to the cleansing of the brush, as well as cleaning in all the directions of brushing up, down, left and right, and also has a gum protection function by preventing gum damage due to the impact of the toothbrush head end when brushing, there is no fear of falling off the brush head and brush head No gaps or voids between the head and the head, no fear of scale formation or germ propagation At the same time, the toothbrush head is compact and the optimal number of bristles for Koreans allows effective cleansing with easy access to every corner of the oral cavity. The present invention relates to an anchorless toothbrush having a gum massage effect, a whitening effect due to tooth friction, or a tongue cleaning effect by applying a rubber for application or a tongue cleaning rubber.

Conventional toothbrushes adopt an anchor method for fixing the toothbrush focusing head to the toothbrush head using a metal anchor, but the shape and size of the hole for planting the toothbrush head are large, and the angle of the brush head and the bristles It is not possible to implement the end shape freely, there is a limitation in the thickness and shape of the toothbrush head due to the depth of anchor insertion, it is difficult to implement functional massage bolds or rubbers for tooth polish, and it is a mechanical method using iron core anchoring method Inevitably, there are limitations on the image, bristles of bristles, severe difficulty, effective cleaning of various types of teeth and uneven teeth, and difficult access to the back of the molar. There is a problem.

As a conventional method for solving this problem, an anchor using a focusing hair melt fixing adapter inserting a focusing hair into an adapter having a hair follicle, melting and fixing the bottom thereof, and then fixing the focused hair adapter to the toothbrush head. Although a toothless toothbrush has been proposed, this method solves many of the problems of the above-mentioned anchor method, but there is still a certain limitation in reducing the thickness of the entire toothbrush head since it is still attached to the base of the toothbrush head using a separate adapter. In addition, there is a serious problem in hygiene that, in particular, the gap between the adapter and the base of the toothbrush head fixing the same is easy to be contaminated and the bristle base is also easily contaminated.

On the other hand, most of the conventional toothbrush group focusing hair group implanted in the toothbrush head has a uniform length as a whole and is formed in a circular shape in each plan view, so that only the same cleansing effect for each part of the tooth is different, as shown in FIG. In addition to the blocking effect of the bristles on the interdental area in the tooth arrangement having a size, there is a problem that it is difficult to access the rear of the molar teeth, so that effective brushing is not possible. It is even more serious for me.

As a conventional method for solving this problem, attempts have been made to facilitate molar cleaning by sharply brushing each end of the bristles forming the tufts of hair of the toothbrush head to form acute angles, or by tilting the bristles. These toothbrushes are effective for brushing the upper surface of molar teeth but are not effective for cleaning both sides of the tooth. In addition to the problem of bristles having such acutely formed end portions, there is a concern that if the brush is severely injured, the gum gap contacting the tooth may be injured. There is this.

Thus, various attempts have been made to specific tuft arrangements of bristles to enable simultaneous cleaning of various types of teeth and gums with one toothbrush, regardless of conventional brushing methods or techniques.

Conventional and improved toothbrushes in accordance with these attempts use a variety of shapes and arrangements of focusing hairs, and thus, various shapes and arrangements during brushing of various tooth surfaces or gums of teeth arranged in various shapes and sizes. Since the focusing hairs of each have a specific function, the plaque can be more efficiently removed, but there is still a problem in that the access to the interdental part is not satisfactory enough, so that the plaque can not be easily removed.

Effective plaque removal is one of the most important factors for maintaining healthy teeth, but effective plaque removal requires efficient and reliable access to the interdental area of the bristles, while the oral structure is narrow in the oral cavity. Therefore, the toothbrush head must have a compact structure and dimensions, as well as the group of bristles implanted therein need to have an optimal number of bristles and have a different specific shape and arrangement from each other. Toothbrushes having the shape of the toothbrushes are arranged according to the oral size and tooth characteristics of Westerners, such as the arrangement of the bristles (ie height and direction), the number of bristles, the size of the toothbrush heads, and the like. There are many small, uneven teeth, and Koreans with weak gums. Lots of amount to a rather large number of bristles the toothbrush head for use in uncomfortable stiff, and there is a problem in that the toothbrush is focused simulation arrangement and shape is not suitable for removal of plaque values shaft.

Therefore, there is an urgent need in the art for the development of a toothbrush that can satisfy these factors, especially for Asians such as Koreans.

Therefore, the first object of the present invention is to have an improved anti-blocking effect (ACE) on the interdental part, not only in the person with an even tooth, but also in the person with an uneven tooth. To provide a toothbrush that exhibits good interdental brushing ability (i.e., good plaque removal against the interdental) for any tooth shape.

The second object of the present invention is to provide a toothbrush that can effectively clean the molar rear surface as well as effective cleansing in all brushing directions of the top, bottom, left and right, in addition to the first object described above.

The third object of the present invention is to provide a toothbrush that can effectively remove plaque every corner between the tooth and the tooth, the gum and the tooth gap, in addition to the first and second objects described above.

A fourth object of the present invention is to provide a toothbrush effective for removing tartar and plaque on the tooth surface in addition to the above object.

The fifth object of the present invention, in addition to the above object, by providing a toothbrush head of the compact type and the optimum number of bristles suitable for the oral cavity size of the Korean people, to provide easy access to every corner of the oral cavity and at the same time provides an effective cleansing brush It is to.

A sixth object of the present invention is to provide a toothbrush having a gum massage function as well as preventing gum damage due to the impact of the toothbrush head when brushing in addition to the above object.

A seventh object of the present invention is to provide a toothbrush that retains the tooth whitening effect as well.

An eighth object of the present invention is to provide a toothbrush that retains a tongue cleaning effect.

According to a preferred aspect (i) of the present invention for achieving the first object of the present invention, in the toothbrush comprising a toothbrush head, a neck portion and a grip portion in which different groups of focusing hairs are planted, the toothbrush head described above. Focusing at least at four places of the oval shape as viewed from above, the inner end is low along the long axis of the ellipse shape and the outer end is formed with an oblique blocking effect prevention slope, the above-mentioned blocking effect prevention follicles are two sets of two Each jaw is adapted to be symmetrically spaced apart from each other along the longitudinal centerline of the toothbrush head, and each of said outer ends of the two barrier effect preventing focusing heads that make up each jaw pass through said inner end. A toothbrush that is twisted outward with respect to the straight line in the width direction is provided.

According to a preferred aspect of the present invention for achieving the second object of the present invention, in the aspect according to the first object described above, the front end of the toothbrush head is inclined 5 to 18 ° forward with respect to the repair of the toothbrush head plane. A toothbrush is provided in which a front tip focusing head is formed and a rear tip focusing head inclined 5-15 ° rearward with respect to the waterline in the rear end of the toothbrush head plane.

According to the first aspect of the present invention for achieving the third object of the present invention, in the aspect according to the first object described above, the blocking effect preventing focusing hairs are formed in eight places, and each of the four blocking effect preventing focusing hairs is Toothbrushes are formed in the same shape and arrangement in two places, and the pin-type central focusing hair is formed at the center between the four blocking effect preventing focusing hairs.

According to a second aspect of the invention for achieving the third object of the invention, in the first aspect immediately above, between the front tip focusing pin and the pin type center focusing hair, between the pin type center focusing hairs, the pin type Between the central focusing head and the rear tip focusing hat, a central focusing hat for preventing the blocking effect is placed in the width direction of the toothbrush head, with an elliptical shape as viewed from above and one end of which is lower along the long axis of the ellipse shape, and the other end being high. , The inclined directions of the central focusing hair for preventing the blocking effect are provided with toothbrushes alternately alternately formed.

According to a third aspect of the present invention for achieving the third object of the present invention, in the second aspect immediately above, the toothbrush in which the pin-type focusing hair is formed on both sides in the longitudinal direction of the blocking effect preventing center focusing hair is Is provided.

According to another preferred first aspect of the present invention for achieving the third and fourth objects of the present invention, in the first aspect for achieving the third object, the four pins at the central portion of the focusing hair for preventing the blocking effect A toothbrush is provided in which a crosshair of each type is formed, and a pin-type centered focusing body is positioned between the four blocking effect preventing focusing hairs, and an arc-shaped focusing hair is formed around the pin-shaped focusing hair.

According to another preferred second aspect of the present invention for achieving the third and fourth objects of the present invention, in the above-mentioned aspect, a plurality of pin-type focusing hairs are formed in an area adjacent to the pin-shaped cross hairs. Toothbrushes are provided.

According to a preferred aspect of the present invention for achieving the fifth object of the present invention, in the aforementioned aspects, the total number of bristles is 1550-2200, and the anchorless method, preferably the in-mold method, among them Toothbrushes are provided.

According to a first preferred aspect of the present invention for achieving the sixth object of the present invention, there is provided a toothbrush in which the gum protection rubber is formed along the toothbrush head outer circumferential surface in the foregoing embodiments.

According to a second preferred aspect of the present invention for achieving the sixth object of the present invention, there is provided a toothbrush in which rubber for gum massage is formed on both sides of the toothbrush head in the longitudinal direction above.

According to one preferred aspect for achieving the seventh object of the present invention, in addition to the first aspect according to the third and fourth objects described above, the pin-type centered focus hair and the arc-shaped focus hair around the periphery are described. A toothbrush is provided in which a plurality of dental rubbers is formed in an annular shape.

According to one preferred aspect for achieving the eighth object of the present invention, there is provided a toothbrush in which tongue cleaning rubber is formed on the back of the toothbrush head.

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

Figure 1a is a perspective view of a toothbrush 1 according to a preferred embodiment of the present invention, Figure 1b is a perspective view showing the bottom surface of the head 3 in the toothbrush 1 of Figure 1a, the toothbrush 1 according to the present invention It is formed of a toothbrush head (3), a grip portion (4) and a neck portion (5) formed of an integral body (2), wherein the first rubber forming portion (6) has an upper surface, a bottom surface and a side surface in the body (2). And they are joined at the ends of the grip part 4, and the second rubber forming part 7 is formed along both up and down sides.

Either of the first rubber forming portion 6 or the second rubber forming portion 7 described above includes a gum protective rubber 7a surrounding the outer periphery of the head 3 and a gum covering the bottom surface of the head 3. The rubber for protecting tongues 7b may be formed on the gum protection rubbers 7b, as shown in the example shown in the figure, but the tongue cleaning rubbers 7e may be formed, but the shape thereof is not limited. It may also be formed in the form of an upper die or an object protrusion.

On the head 3 described above, a plurality of bristles 8 are planted into a group of focused bristles of a particular shape and arrangement. The total number of bristles is about 1400 to 2400, preferably about 1550 to 2200, more preferably about 1700 to 2100, and more anchorless (anchorless) It is preferable to manufacture in-mold (in-mold) method, among the anchorless method, because the design of a variety of hair follicles are possible and the end shape of the bristle (8) is free to set the anchor pin or There is no need to insert a separate adapter structure, which makes it thin and thin, and there is no problem of missing the bristles (8) due to the fusion fixing of the bristles (8), and there is no gap or empty space between the bristles and the head, so there is no fear of water formation or bacterial propagation. This is because it is hygienic and can impart various functionalities to the toothbrush head 3.

In the present invention, as the material of the bristles used in the toothbrush head, nylon (Nylon) resin or PBT (PolyButylene Terephthalate) resin fiber which is generally used may be used, and as the rubber, EPDM (Ethylene Propylene Diene Monomer), SEBS (Styrene) Ethylene Butadiene Styrene) or a conventional synthetic rubber such as silicone may be used.

The grip part 4 of the toothbrush 1 according to the present invention has a good grip feeling and the neck part 5 is slim to show an appropriate elastic strength, and in particular, the head 3 is easy to use (accessibility to all points in the oral cavity). And a compact structure of about 3.0 to 3.8 mm thick, preferably about 3.0 to 3.5 mm thick, about 25 to 32 mm long, and about 11.5 to 14.0 mm wide, in terms of maintaining head strength. It is most suitable for structure.

FIG. 2 is a perspective photograph showing the shape and arrangement of the toothbrush focusing hair (preferably the focusing hair groups) implanted in the head 3 in the toothbrush 1 of FIG. 1A, and FIG. 3 is a schematic view of FIG. 2. 4 is a plan schematic diagram showing the shape and arrangement state of the focusing hair in FIGS. 2 and 3, which will be described together for convenience.

In the illustrated example, focusing heads 12 are formed at eight locations of the toothbrush head 3 in an elliptical shape as viewed from above and along the long axis of the elliptic shape, the inner end of which is low and the outer end of which is inclined highly. The blocking effect preventing focusing head 12 forms four sets of two, and the two sets are symmetrically spaced apart from each other along the longitudinal center line of the toothbrush head 3, respectively, each of which constitutes two sets. Each of said outer ends of the four blocking effect preventing bristle heads 12 are positioned 3-8 degrees outward with respect to the widthwise straight line of the toothbrush head 3 which passes through said inner ends, preferably about 5 degrees. By the staggered outward arrangement, the removal of plaque on the interdental can be effectively prevented by the bristles of the bristles of the teeth having various sizes and shapes in the oral cavity. Can be made to overload, especially those transversal placement for many people who have misaligned teeth is very effective. The inclination of the inner end portion and the outer end portion of the focusing hair 12 for preventing the blocking effect from the above is 20 to 40 degrees, preferably 25 to 35 degrees, and specifically about 30 degrees.

The diameter of the barrier hair 12 for preventing the blocking effect is in the range of 0.14 to 0.20 mm, preferably in the range of 0.15 to 0.18 mm and less than 0.14 mm may be inferior in the plaque removal effect and 0.20 mm If exceeded, the use becomes stiff and the interdental cleansing effect is inferior, which is not preferable. On the other hand, the height of the bristles between the bristles in the group of the bristles for preventing the blocking effect 12 is in the range of 10.0 to 12.0 mm and 8.5 to 10.5 mm, respectively, in consideration of the mutually different pressing degree of the bristles when brushing. It is the range of, Preferably it is the range of 10.3-11.8 mm, and 8.8-10.3 mm, respectively. If the highest and lowest sides are each below the lower limit, the user experiences inferiority, and there is a risk of damaging the interdental gums. Conversely, if the upper limit is exceeded, the rigidity is inferior and the interdental cleansing effect may be inferior. Not desirable

In addition, the height of planting between the groups of the above-described blocking effect focusing bristles 12 group is located between the front end and the rear end of the toothbrush head 3 and the central part in consideration of the degree of pressing of the bristles when brushing is mutually different. It is preferable that the difference is to improve the cleansing effect of the interdental part, and the height difference between them is in the range of 0.3 to 1 mm, preferably about 0.5 to 0.7 mm, and below 0.3 mm, the degree of effect expression according to the difference is increased. It is not preferable because it is low and may exceed the 1mm may hurt the feeling. In addition, in order to prevent the two or four blocking effects to the height of the two blocking effect preventing heads 12 located at the front end in consideration of the difference between the front end and the rear end of the toothbrush head (3) when brushing. It may be preferable to form a 0.1 to 0.5 mm, preferably about 0.3 mm higher than the focusing hair 12 in terms of a better feeling when brushing.

In addition, the number of bristles of the bristle bristle 12 for preventing the blocking effect of each group is preferably 45 to 70 in terms of usability and cleansing feeling that Koreans feel, and more preferably about 50 to 65. Therefore, in the case of forming eight groups of the above-described blocking effect preventing hairs 12, the number of bristles is about 45 to 70 × 8 = 360 to 560, and in some cases, the blocking hairs for preventing blocking effect 12 are 10 groups. It can also be formed.

In addition, a set of front tip focusing hairs 10 inclined forward 5 to 18 ° with respect to the waterline in the toothbrush head 3 plane is formed at the front end of the toothbrush head 3, and the rear end of the toothbrush head 3 surface. The rear tip focusing head 11 is inclined 5 to 15 ° rearward with respect to the repaired line, so that the front tip focusing head 10 can reach the rear side of the oral innermost molar and can be effectively cleaned. In addition, the deep tip of the rear tip focusing hair 11 is also possible with respect to the oral anterior interdental and the tooth surface of the molar teeth can be effectively cleaned. Here, the inclination angle between the plane forming the upper surface of the front tip focusing hair 10 and the rear tip focusing hair 11 and the upper surface of the toothbrush head 3 is 20 to 40 ° in the case of the front tip focusing hair 10, preferably Preferably it is 25-35 degrees, specifically about 30 degrees, and in the case of the rear tip focusing hair 11, it is 10-30 degrees, Preferably it is 15-25 degrees, specifically about 20 degrees.

The diameter of the anterior tip focusing hair 10 is in the range of 0.16-0.20 mm, preferably in the range of 0.17-0.19 mm, specifically 0.18 mm, and below 0.16 mm will result in inferior plaque removal effects. It is not preferable because there is a concern and if it exceeds 0.20 mm, the hard usability will be heard. On the other hand, the height of the bristles between the bristles in the front tip focusing hair 10 group is 11.5-13.0 mm and 10.0-11.0 mm, respectively, in consideration of the mutually different pressing degree of the bristles when brushing. It is a range, Preferably they are the range of 12.0-12.5 mm, and 10.5-11.0 mm, respectively. If the highest and lowest sides are less than the lower limit, respectively, the access to the lower rear of the molar teeth is inferior, and the cleansing effect is insufficient. On the contrary, if the upper limit is exceeded, the rigidity is inferior. It is also undesirable because there is a possibility that the effect will be worse.

In addition, the front tip focusing hair 10 may be formed in two groups in the front and the total number of bristles is preferably 250 to 320 in terms of feeling and cleansing feeling felt by Koreans, and more preferably 280 to 300 About dog.

On the other hand, the diameter of the rear tip focusing hair 11 is the same as the diameter of the front tip focusing hair 10, the height of the tufts is the highest and lowest between the bristles in the group 10.0 to 11.5mm and 8.7 to 10.3, respectively It is in the range of mm, preferably in the range of 10.5 to 11.2 mm and 8.9 to 9.8 mm, respectively, and below the lower limit, inferior access to the molar tooth is inferior, so that the cleansing effect is insufficient. It is not preferable because the feeling of use may be rather deteriorated when brushing. In addition, the rear tip focusing hair 11 may be formed in one group at the rear, and the number of bristles is preferably 80 to 120 in terms of feeling and cleansing feeling felt by Koreans, and more preferably 90 to 110. It is enough.

On the other hand, the central portion between the four blocking each of the above-described blocking effect preventing hair 12 is formed with a pin type central focusing hair 15 protruding upward from the center as a whole, which exerts a toothpick tooth effect by exerting a toothpick tooth effect. The cleaning effect on the gums and the gaps between the teeth and the grooves on the upper surface of the teeth is increased.

The diameter of the pin-type central focusing hair 15 is the same as the diameter of the front and rear tip focusing hairs 10 and 11, and the planting height is 10.0 at the highest center side and the lowest edge side between the bristles in the group, respectively. It is in the range of -11.2 mm and 8.8 to 9.8 mm, preferably in the range of 10.5 to 11.0 mm and 9.2 to 9.5 mm, respectively, and below the lower limit, there is a concern that the accessibility is inferior and the cleansing effect thereof is insufficient. When the upper limit is exceeded, the feeling of use when brushing may be lowered, and the strength of the cleansing caused by the bristles may be weakened. In the illustrated example, the pin-type central focusing hair 15 is formed in three groups, and the number of bristles in each group is preferably 85 to 115 in terms of usability and cleansing feeling felt by Koreans, and more preferably. It is about 95-105.

Also in the illustrated example, between the front tip focusing hair 10 and the pin type central focusing hair 15, between the pin type central focusing hair 15, 15, the pin type central focusing hair 15 and the rear tip focusing hair. Between (11), the central focusing hair 13 for preventing the blocking effect in the width direction of the toothbrush head 3 has an elliptical shape as viewed from above and an inclined end portion of which is low at one end and high at the other end along the long axis of the ellipse shape. While each is positioned, the inclination directions of the central focusing hair 13 for preventing the blocking effect are formed alternately alternately. The inclination of the said one end part and the other end part of the central focusing hair 13 for blocking effect prevention here is 20-40 degrees, Preferably it is 25-35 degrees.

The diameter of the above-described blocking effect preventing center focusing hair 13 may be the same as the diameter of the front and rear tip focusing hairs 10 and 11, and the planting height is the highest end side and the lowest end side between the bristles in the group. These are in the range of 10.5 to 11.5 mm and 8.9 to 9.9 mm, respectively, preferably about 11.0 mm and 9.4 mm, respectively, and below the lower limit, there is a concern that the accessibility is inferior and the cleansing effect is insufficient, and the upper limit is exceeded. At the time of brushing is also not preferable because the feeling of use and brushing strength by the bristles may be weakened. In the illustrated example, the central focusing hair 13 for preventing the blocking effect is formed in three groups, and the number of brush heads of each group is generally about 85 to 115, and preferably about 95 to 105 is Korean. It fits well in terms of feeling and cleanliness.

In addition, the pin-type focusing hair 14 is formed on both sides in the longitudinal direction of the blocking effect preventing center focusing hair 13, and its function is the same as in the case of the pin-shaped focusing hair 15 described above.

The diameter of the pin type focusing hair 14 is in the range of 0.14 to 0.20 mm, preferably in the range of 0.15 to 0.18 mm, and less than 0.14 mm may cause inferior plaque removal effects and exceeds 0.20 mm. This is undesirable because there is a stiff feeling of use and inferior interdental cleansing effects. Also, the planting height is substantially the same as in the case of the pin type central focusing hair 15 described above.

On the other hand, in the illustrated example, the pin-type focusing hair 14 is formed in four groups, and the number of brush heads in each group is generally 45 to 70, which is preferable in terms of feeling and cleansing feeling felt by Koreans. More preferably, it is about 50-65 pieces. Therefore, when the pin-type focusing hair 14 is formed into four groups, the number of bristles is about 45 to 70x4 = 180 to 280, and in some cases, the pin-shaped focusing hair 14 is 5 to 6 It may also be formed of dog groups.

Also, if necessary, rubbers for gum massage (eg, reference 7c in FIG. 6) or various modified forms of dental rubbers (eg, reference 7d in FIG. 6) above both sides of the toothbrush head 3 in the longitudinal direction. It is, of course, also within the scope of the present invention.

Next, FIG. 5A which is a perspective view of the toothbrush 1a according to another preferred embodiment of the present invention, and FIG. 5B which is a perspective view showing the bottom surface of the head 3 in the toothbrush 1a of FIG. 5A will be described. Since the basic configuration is substantially the same as the toothbrush 1 in FIG. 1A, only the differences will be mainly described.

On the surface of the rubber protective rubber 7b covering the bottom surface of the head 3, there is formed a tongue cleaning rubber 7e in the form of a wavy protrusion, and for protecting the gum at the outer circumference of the head 3 The gum massage rubber 7c in the form of a rubber bolds as an optional component is formed integrally upward from both sides of the rubber 7a, except that the shape and arrangement of the focusing hair are different. The overall structure is substantially the same as that of the toothbrush 1.

FIG. 6 is a perspective photograph showing the shape and arrangement of the bundled hairs implanted into the toothbrush head 3 substantially the same as in FIG. 5A, FIGS. 7A and 7B are plan and side views of FIG. 6, respectively. It is a schematic perspective view which shows the form and arrangement | positioning state of the focusing hair in the toothbrush head 3 substantially the same as FIG. 6, and FIG. 9 shows the form and arrangement | positioning state of the focusing hair in the toothbrush head 3 of FIG. As a typical schematic top view shown, it mentions together for convenience of description.

In the illustrated example, the head 3 of the toothbrush 1a according to the present invention is optimally formed in the oral cavity size and structure of the Korean, as described above, and has excellent usability, and has a thickness of about 3.0 to 3.8 mm, preferably about 3.0. It is -3.5 mm, about 25-32 mm in length, and a compact structure about 11.5-14.0 mm in width.

Even in the illustrated example, eight groups of toothbrush heads (3) having an elliptical shape as viewed from above and an inner end portion along the long axis of the ellipse shape, the inner end portion being low and the outer end portion being highly inclined are eight groups. The blocking effect preventing focusing head 12 is formed of four pairs of two pieces and the two pieces are located symmetrically spaced apart from each other along the longitudinal center line of the toothbrush head 3, and each of the sets of Each of said outer ends of each of the two blocking effect preventing focusing hairs 12 which make up the outer side is 3-8 degrees outward with respect to the longitudinal direction of the toothbrush head 3 which passes through said inner end, Preferably it is about 5 ° twisted position is the same, the effect of this structure and the angle of inclination, the diameter of the bristles, the height of the bristles, the difference in the relative height of the tufts between each group, the height of the highest and lowest tufts in each group The difference is added, such as for it the same as described above will be omitted.

In addition, a set of front tip focusing hairs 10 having the same shape and arrangement as described above at the distal end of the toothbrush head 3, and a rear tip focusing hair 11 having the same shape and arrangement as described above at the rear end are provided. Formation is the same, the diameter of the bristles, the height of the tufts, the height of the tufts of the highest side and the lowest side, etc. are the same as described above will be omitted for this.

On the other hand, unlike the case of Figs. 2 to 4, the pin-type cross-shaped focusing hair 15 is formed instead of the pin-type central focusing hair in the central portion between the four blocking effects preventing hairs 12 described above. Between the pin type cross hairs 15 (that is, between the four groups of blocking hairs for preventing the blocking effect), a pin-type centered focus hair 16 is disposed around the arc-shaped focus hair 17. Is formed. In addition, a plurality of pin-type focusing hairs 14 are formed in an area adjacent to the pin-shaped cross hairs 15.

The pin-type focusing hair 14, the pin-shaped cross hair 15, and the pin-shaped center-focused hair 16 increase the cleansing effect between teeth and teeth and between teeth and gums by the soaking toothpick effect. Is the same as described above.

Here, the diameter of the pin-type focusing hair 14, the pin-shaped cross hair 15, and the pin-type centered focusing hair 16, the height of the planting, the height of the planting height of the highest and the lowest side, etc. are described above. Although substantially the same as the one, in some cases, the diameter of the pin type focusing hair 14 and the pin type central focusing hair 16 is about 0.15 mm, while the pin type cross hair 15 is used. In the case of), in order to give a strong cleansing effect, a somewhat thicker one of about 0.18 mm diameter may be used, and the relative height thereof is within the range of about 0.3 to 0.8 mm, preferably about 0.5 mm. The flock height of the focusing hair 16 may be the highest, followed by the pin-shaped focusing hair 14 and the pin-shaped cross hair 15, the lowest. Seedling height () of High) is about 11.0 (9.5) mm, the pin type focusing hair 14 is about 10.8 (9.3) mm, and the pin type cross hairs 15 are about 10.5 (9.5) mm, The diameter of the above-described blocking effect preventing bristle bundle 12 may also be slightly thinner, such as 0.15 mm, so that the differentiation function can be well represented.

In addition, in the illustrated example, the pin-type focusing hair 14 is not limited, but is formed in five groups and is formed in one group of pin-type centered focusing hair 16. The number of bristles of each group is described above. As mentioned above, about 45 to 70 pieces are preferable in terms of feeling and cleansing feeling felt by Koreans, and more preferably about 50 to 65 pieces, but in the case of the pin type cross hair 15, 160 to 230 per group of focusing hairs. The number of dogs is about 320 to 460 in total, and preferably about 175 to 210 in each group is preferable in terms of usability and cleansing.

7A and 7B are plan and side photographs of FIG. 6, respectively, in which the diameters of the two arc-shaped focusing caps 17 in the semicircle are rather thick so that the front and rear tip focusing caps 10 and 11 can be described. It is about the same as the diameter, and the highest side of the outer periphery of the hairs and the lowest side of the inner periphery are in the range of 9.5-10.3 mm and 9.0-9.8 mm, respectively, preferably in the range of about 9.8 mm and 9.3 mm, respectively. If the upper limit is less than the lower limit, the accessibility to the tooth surface may be inferior. On the contrary, if the upper limit is exceeded, the cleaning strength may be deteriorated, and the removal of dental plaque and plaque may be insufficient. I can't.

In addition, the two (group) arc-shaped focusing hairs 17 on the semicircle may be formed in a circle as one group, or in four groups on a quarter-circle arc, and the like, which is also within the scope of the present invention. On the other hand, the number of bristles in all groups of the arc-shaped focusing hairs (17) is about 200 to 300 in each group, and about 400 to 600 in total, and in particular, about 350 to 400 in total are most preferable in terms of feeling and cleansing feeling felt by Koreans. can do.

In addition, in the illustrated example, four arc shaped dental rubbers 7d are formed between the pin-type centered focusing hair 16 and the arc focusing hair 17, which form a dome shape as a whole. The plaque removal effect is exhibited.

The height of the arc-shaped dental rubber 7d is slightly higher than the arc-shaped focusing hair 17, so that friction with the teeth can be smoothed, and preferably about 9.8 to 10.5 mm, specifically about 10 mm. The thickness may be about 1.5 to 3 mm.

In addition, if necessary, the gum massage rubber 7c may be formed on both sides of the toothbrush head 3 in the longitudinal direction, and the gum massage rubber 7c or the dental rubber 7d in various modified forms may be illustrated in FIG. 11. As shown in the figure, it is integrally formed from the gum protection rubber 7b of the toothbrush head 3 bottom surface.

The thickness of the gum massage rubber 7c may be about 1.5 to 1.9 mm, and specifically about 1.7 mm, and in the illustrated example, the brushing process may be slightly higher than the center of the tooth. Massage of the gums may be more natural, for example, the height may be about 10.0 mm at both ends and about 9.6 mm at the center.

The dental rubber 7d is expected to have a whitening effect that is smoothly rubbed with the teeth when brushing to give gloss to the teeth.

On the other hand, Figure 8 is a schematic diagram for the toothbrush head substantially the same as Figure 6 in the color of the central portion of the two circular arc-shaped focusing head 17 in a semi-circle, but this is only for showing the visual effect described above It is of course also within the scope of the present invention as essentially the same configuration as the other examples.

10 is an exemplary photograph showing a state in which the focusing hair of the toothbrush head 3, which is essentially the same as the toothbrush 1 of FIG. 2, is in contact with a tooth when brushing, and the two red circle portions in the center have a blocking effect. Excellent for interdental parts by means of a preventive focusing head (see 12 in FIG. 2) and a central focusing head (see 13 in FIG. 2) for preventing the blocking effect, and auxiliary by a pin type focusing head 14. The red circle part on the right shows that the oral innermost molar back part is effectively wiped by the front tip focusing portion (see reference numeral 10 in FIG. 2), although not indicated by the red circle. Figure 10 shows that the entire molar side is effectively wiped by the rear tip focusing portion (see reference numeral 11 in FIG. 2), and FIG. 10 shows the bristle blocking effect. As compared to the conventional toothbrushes also want to prepare a 13 showing the bristles blocking effect.

11 is a partial cross-sectional view showing a state in which the focusing hair is melt-cured fixed in the inmold method among the anchorless method in the toothbrush head 3 according to the present invention, wherein the dome shape of the toothbrush head 3 is described above. It shows the state cut off the center part, the white hair of the front center shows a pin type centered focusing hair (for example, reference numeral 16 in FIG. 8), and the yellow part of both sides shows the dental rubber (for example, in FIG. 8). 7d), the yellow portions on both outer sides indicate gum massage rubber (see, for example, reference numeral 7c in FIG. 8), indicating that the base of the focusing hair is firmly melt fixed in the head 3.

12 is an enlarged photograph showing that the distal end of the bristles constituting the bundled hair in the toothbrush head 3 according to the present invention is well rounded by acid treatment or the like known in the art before planting.

Hereinafter, the present invention will be described in more detail.

Examples 1 and 2:

The toothbrush of FIG. 1A as shown in Table 1 below with the bristles of FIG. 2 and the toothbrush of FIG. 5A as shown in Table 2 below with the bristles of FIG. Arranged at right angles and having an upper surface slope of 30 °), the following experiments were carried out using Examples 1 and 2, respectively.

Type of focusing hair (see figures 3 and 4) Brush head standard (mm) Count Number of groups Brush head total diameter Height (high / low) 10 0.18 12.5 (10.8) 144 2 288 2 toothbrush head tips (12) 0.18 11.5 (10.0) 54 2 108 4 center toothbrush heads (12) 0.18 10.8 (9.3) 54 4 216 (14) 0.18 10.8 (9.3) 54 4 216 4 toothbrush head rear ends (12) 0.18 11.2 (9.5) 54 4 216 (11) 0.18 10.8 (9.6) 96 One 96 (13) 0.18 11.0 (9.4) 100 3 300 (15) 0.18 10.8 (9.2) 100 3 300 23 1740

Type of focusing hair Refer to FIGS. 6 to 9) Brush head standard (mm) Count Number of groups Brush head total diameter Height (high / low) 10 0.18 12.0 (10.5) 144 2 288 2 toothbrush head tips (12) 0.15 11.2 (9.7) 60 2 120 (14) 0.15 10.8 (9.3) 60 5 300 4 center toothbrush heads (12) 0.15 10.5 (9.0) 60 4 240 (17) 0.18 9.8 (9.3) 240 2 480 2 toothbrush head rear ends (12) 0.15 11.0 (10.0) 60 2 120 (11) 0.18 10.8 (9.3) 96 One 96 (15) 0.18 10.5 (9.5) 192 2 384 (16) 0.15 11.0 (9.5) 60 One 60 Both ends (7c) 1.7 10.1 - - - Central (7c) 1.7 9.6 - - - (7d) - 10.0 - - - 21 2088

Comparative Examples 1 to 3:

In the bristles of Examples 1 and 2, a toothbrush having a bristles having a bristle with a regular round bristle and a rear tip bristle removed instead of a blocking effect preventing bristle with 8 arranged at a mutually staggered angle and having a top surface inclination of 30 ° These experiments were carried out using Comparative Examples 1 and 2, respectively.

On the other hand, the conventional anchor type single-hair toothbrush was set as Comparative Example 3.

Experimental Example 1 Evaluation of Plaque Removal Effect

40 subjects were divided into 4 groups of 10 people each, and subjects of each group were brushed for 3 days, 3 times a day for 30 minutes, using toothbrushes of Examples 1 and 2 and Comparative Examples 1 and 2, and 15 days. The reduction rate of the Plaque Index (%) on day 1 and day 30 was obtained, and the results are shown in Table 3 below.

% Reduction in plaque index Example 1 Example 2 Comparative Example 1 Comparative Example 2 After 15 days 4.9 ± 0.5 5.4 ± 0.2 3.9 ± 0.2 4.2 ± 0.3 After 30 days 9.1 ± 0.3 9.6 ± 0.4 8.4 ± 0.3 8.7 ± 0.5

From the results of Table 3 above, Examples 1 and 2, which use two rear-end focusing heads and a rear tip focusing head, which are arranged at two mutually staggered angles and have an upper surface inclination of 30 °, are used. Compared with 30 days, the reduction rate of plaque was 8.3% and 9.1% higher.

Experimental Example 2: Usability Evaluation

For 30 panels, the toothbrushes of Examples 1 and 2 and the toothbrush of Comparative Example 3 were used for two weeks, and their usability was measured by a five-point comparison method. The results are shown in Table 4 below.

No. Evaluation item Example 1 Example 2 Comparative Example 3 One Cleaning feeling when brushing teeth 4,1 4.3 3.2 2 Plaque removal on uneven areas 4.4 4.5 2.7 3 Feel for toothbrush head 4.0 3.9 2.6 4 A sense of reaching the oral cavity at the time of brushing 3.7 3.8 2.8 5 Overall plaque feeling 4.0 4.1 3.3 6 Overall satisfaction 4.04 4.12 2.92

Evaluation criteria: 5-excellent / 4-good / 3-normal / 2-inferior / 1-very poor

From the results of Table 4, the toothbrushes of Examples 1 and 2 were evaluated to be very excellent in each evaluation item as well as overall satisfaction as compared to the conventional anchor type flat toothbrush.

As described above, the toothbrush according to the present invention is particularly suitable for persons with uneven teeth due to the enhanced interdental brushing function through the bristles for improved anti-blocking effect (ABE). In addition, it is possible to effectively remove dental plaque and plaque on the surface of the tooth by the circular tooth surface bacterial membrane removal focus, and cleansing in all brushing directions of the upper, lower, left, and right sides as well as cleaning the rear of the molar. In addition, it has a gum protection function by preventing gum damage due to the impact of the toothbrush head end when brushing, and manufactured by the anchorless method, there is no fear of falling off the brush head and there is no gap or empty space between the brush head and the head to form scale or breed bacteria It is hygienic and the toothbrush head is compact and it is most suitable for Koreans By applying it, effective cleansing is possible by easy access to every corner of the oral cavity. Optionally, by applying rubber for gum massage, dental rubber, or tongue cleaning rubber, it is effective for gum massage effect and tooth friction. It has a whitening effect or a tongue cleaning effect.

As mentioned above, although this invention was demonstrated in detail, a person of ordinary skill in the art can variously change and modify this invention, without deviating from the range of this invention, It is also within the scope of this invention.

Claims (14)

In a toothbrush comprising a toothbrush head, a grip portion and a neck portion in which different groups of focusing hairs are implanted, A focusing hair for preventing the blocking effect is formed in at least four of the toothbrush heads as viewed from above, which are generally elliptical in shape and inclined upwardly at an inclination of 20 to 40 ° from the inner end to the outer end along the major axis of the ellipse shape. The blocking effect preventing focusing hairs constitute two sets of two sets, and each of the above-described pairs is symmetrically spaced apart from each other along the longitudinal centerline of the toothbrush head, and each of the outer ends of the two blocking effect preventing focusing hairs forming each of the pairs The toothbrush is mutually staggered by 3-8 degrees outward with respect to the width direction repair of the toothbrush head which passes the said inner edge part. The bristle diameter in the above-described blocking effect preventing bristle is 0.14 to 0.20 mm, and the heights of the outer and inner ends are 10.0 to 12.0 mm and 8.5 to 10.5 mm, respectively. Toothbrush comprising 45 to 70 of the number of bristles constituting the prevention focusing hair. The front tip focusing head of claim 1 is formed at the distal end of the toothbrush head at an angle of 5-18 ° forward with respect to the waterline in the toothbrush head plane and 5-15 ° rearward at the waterline at the rear end with the toothbrush head plane. Toothbrush characterized in that the inclined rear tip focusing hair is formed. According to claim 1, wherein the blocking effect preventing focusing hair is formed in eight places, each of the four blocking effect preventing focusing hair is formed in two places each of the same shape and arrangement as described above, located in the toothbrush head leading end and rear end The height of the blocking effect preventing focusing hair is formed to be 0.3 to 1 mm higher than the height of other blocking effect preventing focusing hairs located in the other central part, and a pin type central focusing hair is formed at the center between the four blocking effect preventing focusing hairs. Toothbrush characterized in that.        5. The apparatus according to claim 4, wherein the long axis of the elliptic shape is generally elliptical from above and between the front tip focusing pin and the pin type central focusing hair, between the pin type central focusing hair, and between the pin type central focusing hair and the rear tip focusing hair. Accordingly, the one end is low and the other end is high inclined 20-40 degrees, the central focusing head for preventing the inclined upward effect is located in the width direction of the toothbrush head, respectively, the inclination directions of the central focusing head for preventing the blocking effect are mutually cross Toothbrush, characterized in that the staple is mutually formed. The toothbrush of claim 4, wherein pin-type focusing hairs are formed on both sides in the longitudinal direction of the blocking effect preventing center focusing hair. According to claim 1, wherein the blocking effect preventing focusing hair is formed in eight places, each of four blocking effect preventing focusing hair is formed in two places in the same shape and arrangement as described above, each of the four blocking effect preventing focusing hair A pin-type cross-shaped focusing hair is formed in the center between each, and a pin-type positive center focusing hair is located between the four blocking effect preventing focusing hairs, and an arc-shaped focusing hair is formed around the toothbrush. 8. The toothbrush of claim 7, wherein a plurality of pin-type focusing hairs are formed in an area adjacent to the pin-shaped cross hairs. The toothbrush of claim 1 or 7, wherein the total number of bristles is 1550-2200, and the toothbrush is manufactured in an anchorless type in-mold type. The toothbrush according to claim 9, wherein the toothbrush head has a thickness of 3.0 to 3.5 mm, a length of 25 to 32 mm, and a width of 11.5 to 14.0 mm. The toothbrush of Claim 1 or 7 in which the rubber | gum protection rubber is formed along said toothbrush head outer peripheral surface. The toothbrush of Claim 1 or 7 in which the rubber | gum for rubber | gum massage is formed in the longitudinal direction both sides upper direction of the said toothbrush head. 8. The toothbrush according to claim 7, wherein a plurality of dental rubbers are annularly formed between the pin-type centered focusing head and the arc-blocking effect preventing focusing head around the pin-type. The toothbrush of Claim 1 or 7 in which the tongue cleaning rubber | gum is formed in the said toothbrush head back surface.

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