Functional toothbrush

Abstract

The present invention relates to a functional toothbrush having a bent portion (curved portion) formed on the outer surface of a first head portion and a second head portion such that, during a rotation or a vertical movement of the toothbrush head when brushing teeth, interference with the teeth arrangement is prevented. The area of contact between bristles and the teeth arrangement is maximized to increase the intensity of polishing and cleaning of the surface of teeth, thereby further improving the effect of brushing. A first head portion and a second head portion are divided and positioned on the left and right sides of the head. In case that the angle of inclination of the bristles of the first and second head portions is configured in a predetermined angle range, for example, 5 to 15 degrees, the bristles of the first head portion contact the upper teeth of the user, and the bristles of the second head portion simultaneously contact the lower teeth of the user when brushing teeth. The user rotates the handle of the toothbrush to brush teeth such that the bristles of the first head portion is directed from the upside to the downside, and the bristles of the second head portion is directed from the downside to the upside. Accordingly, foreign substances and dental plaque are easily removed, and the bristles are correctly inserted between teeth and between teeth and gums, thereby effectively removing food remnants between teeth and between teeth and gums.

Description

Functional toothbrush

[0001] The present invention relates to a toothbrush, and more particularly, to a functional toothbrush in which the bristles of a first head portion and a second head portion located on the left and right sides of a head are planted in an outwardly slanted manner so that the bristles are properly inserted between teeth and between teeth and gums, thereby cleanly removing food debris caught between teeth and between teeth and gums, and in which a pointed portion is further formed on the front of the head, thereby easily digging into the inside of molars when brushing teeth to facilitate the removal of foreign substances while minimizing damage to teeth and gums, and providing a sufficient cleaning effect with little force.

[0002] Typically, a toothbrush consists of bristles made of nylon or silicone, a head on which the bristles are planted, and a handle extending from the head for the user to grip.

[0003] Although toothbrushes are very convenient for brushing teeth, they have the disadvantage of being difficult to clean even the narrow crevices of teeth.

[0004] To maintain healthy teeth and gums, regular brushing is very important. Most oral diseases are caused by dental plaque (bacterial film on teeth), so it is important to remove plaque, which is a mass of bacteria stuck to food residue after eating.

[0005] Proper brushing is paramount for plaque removal. Even if you brush your teeth three times a day, cavities often develop because you're not brushing properly.

[0006] Various methods have been developed to maintain healthy teeth, such as brushing teeth properly and using dental floss or interdental brushes, but it is an undeniable fact that these methods are cumbersome.

[0007] In order to effectively perform important brushing, toothbrushes with various shapes of bristles, such as those in Utility Model No. 20-0264911 and Patent No. 10-0386214, have been developed to perform brushing, but it is difficult to clean between the gums.

[0008] It is a widely known fact that the primary incorrect usage habits (left and right usage) of users of regular toothbrushes are not only inappropriate in that they fail to remove foreign substances and plaque between teeth, but also apply excessive force to the teeth by brushing only the front surface of the teeth, which causes tooth wear and gum disease.

[0009] Because of these problems, users are using a circular brushing method (also known as the rotation method) that involves inserting the toothbrush head between the teeth and gums and then moving it upwards in a circular motion to remove foreign substances and plaque without applying force.

[0010] This rotation method refers to the method of brushing from the gums to the teeth while rotating the wrist holding the toothbrush. The rotation method is to hold the toothbrush facing the gums and rotate the wrist, brushing the upper teeth from top to bottom and the lower teeth from bottom to top.

[0011] However, when using a regular toothbrush to brush teeth using the rotation method, there are the following problems in using it in actual brushing due to the difficulty of the brushing motion.

[0012] The first problem with the rotation method was that when pushing the toothbrush between the teeth and gums to remove debris between teeth, the structural defect of conventional toothbrushes (the repulsive force of the bristles in the middle) made it difficult to remove debris and plaque, forcing the user to apply excessive force to the teeth and gums. This not only made brushing difficult, but also caused the bristles to easily split, limiting long-term use.

[0013] Also, the second problem is that excessive force is applied to the teeth and gums, so although it is suitable for removing foreign substances and tartar, there is a problem that the teeth and gums are damaged.

[0014] In addition, the third problem is that because existing toothbrush bristles are densely packed on the bristles surface (toothbrush bristles plate), even if the used toothbrush bristles are rinsed clean, foreign substances are not completely removed and drying is not done well, making it easy for bacteria to grow and leading to gum disease.

[0015] In addition, the fourth problem is that because the toothbrush bristles are densely connected, the toothpaste applied to the toothbrush bristles gets excessively stuck to the teeth, causing a large amount of toothpaste to be used inefficiently, and there is a problem of the toothpaste running down while brushing.

[0016] A method is needed that can powerfully clean the narrow gaps in the gums without irritating the gums too much, thus preventing gum recession. To solve the aforementioned problems, various education programs are actively being conducted, such as on how to brush teeth and how to use dental floss, but these methods are insufficient.

[0017]

[0018] Meanwhile, Fig. 1 is a drawing illustrating a conventional toothbrush, and Fig. 2 is a plan view for explaining contact between conventional toothbrush bristles and teeth.

[0019] As illustrated in FIGS. 1 and 2, a conventional toothbrush (10) has a head (11) for planting toothbrush bristles (11a) and a handle (12) for a user to hold. The outer surface of the head (11) is formed in a straight line, and the toothbrush bristles (11a) are planted upright.

[0020]

[0021] However, conventional toothbrushes have the following problems:

[0022] First, since the outer surface of the head (11) of the conventional toothbrush is formed in a straight line, while the teeth are formed in a curved surface, the toothbrush bristles (11a) do not adhere closely to the teeth, and the toothbrush bristles are not properly inserted between the teeth and between the teeth and gums, so there is a problem in that food debris caught between the teeth and between the teeth and gums cannot be cleanly removed.

[0023] Second, at the beginning of brushing, the straight toothbrush bristles (11a) come into contact with the tooth surface at a 90° angle, increasing the vertical pressure, but the contact area with the tooth surface is small, so there is a problem that brushing is not done properly, and since the outer surfaces on both sides of the head (11) are formed in a straight shape, there is a problem that the toothbrush head interferes with the teeth when it rotates or moves up and down, and the force pressing the toothbrush bristles is concentrated on one side, causing uneven wear of the toothbrush bristles, shortening the lifespan of the toothbrush.

[0024] Third, since the toothbrush bristles are planted vertically only on the flat surface of the head, there is a problem in that the bristles have difficulty penetrating below the gum line when brushing teeth, making it difficult to brush teeth properly.

[0025] The present invention has been invented to solve the above-mentioned problems, and the first problem to be solved by the present invention is to provide a functional toothbrush in which a first head part and a second head part are positioned in half on both left and right sides of the head, and the inclination angle of the toothbrush bristles of the first head part and the second head part are set to a certain angle, for example, in the range of 5° to 15°, so that when brushing the teeth, the toothbrush bristles of the first head part contact the user's upper teeth and at the same time, the toothbrush bristles of the second head part contact the user's lower teeth, and the user rotates the handle of the toothbrush so that the toothbrush bristles of the first head part point upward and the toothbrush bristles of the second head part point upward while sweeping, thereby easily removing foreign substances and plaque, and the toothbrush bristles are properly inserted between the teeth and between the teeth and the gums, so that food residue caught between the teeth and between the teeth and the gums can be thoroughly removed.

[0026]

[0027] The second problem to be solved by the present invention is to provide a functional toothbrush that can further improve the brushing effect by forming a curved portion (curved surface portion) on the outer surface of the first head portion and the second head portion, thereby preventing interference with the teeth when the toothbrush head rotates or moves up and down while brushing teeth, and by maximizing the contact area between the toothbrush bristles and the teeth, thereby increasing the polishing and cleaning power on the surface of the teeth.

[0028]

[0029] The third problem to be solved by the present invention is to provide a functional toothbrush in which the upper surfaces of the toothbrush bristles of the first head portion and the second head portion are formed to be curved downward, so that when brushing teeth, the toothbrush bristles closely contact the curved surfaces of the teeth, thereby allowing the toothbrush bristles to be properly inserted between teeth and between teeth and gums, thereby removing food debris caught between teeth and between teeth and gums more cleanly, and which can be applied not only between teeth but also between teeth and gums, and effectively clean areas where plaque and foreign substances are not easily removed.

[0030]

[0031] The fourth problem to be solved by the present invention is to provide a functional toothbrush that is convenient for use by children and the elderly, etc., and can improve oral hygiene by forming a pointed portion on the front of the head to have a specific direction, thereby easily digging into the inside of the molars when brushing teeth, making it easy to remove foreign substances, minimizing damage to the teeth and gums, and providing sufficient cleaning effect with little force.

[0032] In order to achieve the above object, the functional toothbrush of the present invention is a toothbrush having a head on which a plurality of toothbrush bristles are planted, and a handle formed to extend long from the head for a user to hold, wherein the head is formed with a first head portion and a second head portion on both left and right sides, and the toothbrush bristles are planted at a certain angle toward the outside on the planting surfaces of the first head portion and the second head portion.

[0033]

[0034] Additionally, the planting surfaces of the first head portion and the second head portion may be formed flat or inclined.

[0035]

[0036] Additionally, a third head portion may be further formed on the front side of the head.

[0037]

[0038] Additionally, a curved portion may be further formed on the outer surface of the first head portion and the second head portion.

[0039]

[0040] Additionally, the third head portion may have a pointed portion formed in the front portion to clean the molars.

[0041] [Correction under Rule 91 19.05.2025] In addition, the head may be formed in a shape in which the front end is pointed and both sides are concave inward.

[0042]

[0043] In addition, the toothbrush bristles of the first head portion and the toothbrush bristles of the second head portion are arranged in an inclined manner to increase the contact area with the teeth when brushing teeth, thereby preventing eccentric wear of the toothbrush bristles, and the tip of the toothbrush bristles is inserted into the gingival sulcus to remove food debris remaining in the gingival sulcus.

[0044]

[0045] In addition, when brushing teeth, the toothbrush bristles of the first head part contact the user's upper teeth, and the toothbrush bristles of the second head part contact the user's lower teeth. When brushing the upper and lower teeth, the toothbrush bristles of the first head part sweep downward from top to bottom, and the toothbrush bristles of the second head part sweep upward from bottom to clean the upper and lower teeth.

[0046]

[0047] In addition, since the upper surfaces of the toothbrush bristles of the first head portion and the second head portion are formed to be curved downward, when brushing teeth, the toothbrush bristles come into close contact along the curved surfaces of the teeth, so that the toothbrush bristles are properly inserted between teeth and between teeth and gums, thereby more thoroughly removing food debris caught between teeth and between teeth and gums.

[0048]

[0049] In addition, when brushing molars, the toothbrush bristles of the first head part contact the occlusal surface of the teeth to clean them, and at the same time, the toothbrush bristles of the second head part are configured to be inserted into the gingival sulcus to clean them or to clean the lingual surface and gum area of ​​the teeth.

[0050]

[0051] Additionally, a toothpaste groove may be further formed between the upper surface of the first head portion and the second head portion.

[0052]

[0053] Additionally, the toothbrush bristles inclination angle of the first head portion and the second head portion can be set in the range of 5° to 15° (based on the vertical line).

[0054] In this way, the present invention has the following effects.

[0055] First, when the first head part and the second head part are positioned in half on the left and right sides of the head, and the inclination angle of the toothbrush bristles of the first head part and the second head part are set to a certain angle, for example, in the range of 5° to 15°, when brushing the teeth, the toothbrush bristles of the first head part contact the user's upper teeth and at the same time, the toothbrush bristles of the second head part contact the user's lower teeth, and the user rotates the handle of the toothbrush so that the toothbrush bristles of the first head part point upward and the toothbrush bristles of the second head part point upward while sweeping, so that foreign substances and plaque can be easily removed, and the toothbrush bristles can be properly inserted between the teeth and between the teeth and the gums, so that food residue caught between the teeth and between the teeth and the gums can be cleanly removed.

[0056] Second, by forming a curved portion (curved portion) on the outer surface of the first head portion and the second head portion, interference with the teeth when the toothbrush head rotates or moves up and down during brushing is prevented, and the contact area between the toothbrush bristles and the teeth is maximized, thereby increasing the polishing and cleaning power on the surface of the teeth and improving the brushing effect.

[0057] Third, since the upper surfaces of the toothbrush bristles of the first head and the second head are curved downward, when brushing teeth, the toothbrush bristles closely contact the curved surfaces of the teeth, so that the toothbrush bristles are properly inserted between the teeth and between the teeth and gums, and food debris caught between the teeth and between the teeth and gums can be more thoroughly removed. In addition, it can be applied to areas where plaque and foreign substances are not easily removed, such as between the teeth and gums, so that it can be effectively cleaned.

[0058] Fourth, a toothpaste groove is formed between the first head and the second head, so that when brushing teeth, the toothpaste does not flow out due to the toothpaste groove but is maintained in the toothpaste groove for a certain period of time, allowing for convenient brushing.

[0059] Fifth, by forming a sharp part on the front of the head to have a specific direction, it is easy to dig into the inside of the molars when brushing teeth, making it easy to remove foreign substances while minimizing damage to the teeth and gums, and it is possible to enjoy sufficient cleaning effect with little force, making it convenient for children and the elderly to use, and it can improve oral hygiene by allowing more effective brushing of the inside of the molars.

[0060] Sixth, brushing is easy, so the user does not have to apply excessive force to the teeth and gums, and because the toothbrush bristles are spread at a certain angle, the toothbrush bristles do not become deformed even if the toothbrush is used for a long time, which extends the lifespan of the toothbrush.

[0061] Figure 1 is a drawing showing a conventional toothbrush.

[0062] Figure 2 is a plan view illustrating the contact between the conventional toothbrush bristles and teeth.

[0063] Figure 3 is a perspective view showing a multifunctional toothbrush according to a preferred embodiment of the present invention.

[0064] Figure 4 is a plan view of Figure 3

[0065] Figure 5 is a plan view showing the arrangement of toothbrush bristles in lines in a multifunctional toothbrush according to a preferred embodiment of the present invention.

[0066] Figure 6 is a plan view showing different arrangements of toothbrush bristles in lines in a multifunctional toothbrush according to a preferred embodiment of the present invention.

[0067] Figure 7 is a side view of Figure 3.

[0068] Figure 8 is a left side view of Figure 3.

[0069] Figure 9 is a cross-sectional view taken along line AA of Figure 7, showing toothbrush bristles planted on an inclined planting surface.

[0070] Figure 10 is a cross-sectional view showing toothbrush bristles angled on a flat bristled surface.

[0071] Figure 11 is a cross-sectional view taken along line BB of Figure 8.

[0072] Figure 12 is a plan view illustrating how the toothbrush head prevents interference with teeth during rotation or up-and-down movement by the curved portions of the first head portion and the second head portion when brushing teeth.

[0073] Figure 13 is a drawing explaining that the upper surfaces of the toothbrush bristles of the first head portion and the second head portion are formed to be curved downward, so that the toothbrush bristles closely follow the curved surface of the teeth and make contact when brushing teeth, thereby increasing the polishing and cleaning power on the surface of the teeth.

[0074] FIGS. 14 to 16 are drawings explaining that when brushing teeth, the toothbrush bristles of the first head contact the user's upper teeth and at the same time, the toothbrush bristles of the second head contact the user's lower teeth, and the user rotates the handle of the toothbrush so that the toothbrush bristles of the first head point downward and the toothbrush bristles of the second head point upward in a sweeping manner, thereby easily removing foreign substances and plaque, and the toothbrush bristles are properly inserted between teeth and between teeth and gums to cleanly remove food debris caught between teeth and between teeth and gums.

[0075] Figure 17 is a drawing explaining that a sharp part is formed on the front of the head so that when brushing teeth, it can easily dig into the inside of the molars to remove foreign substances while minimizing damage to the teeth and gums, and allowing sufficient cleaning effect with little force.

[0076] Figures 18 to 20 are drawings explaining that when brushing molars, the toothbrush bristles of the first head contact the occlusal surface of the teeth to clean them, and at the same time, the toothbrush bristles of the second head are inserted into the gingival sulcus to clean them or to clean the tongue surface and gum area of ​​the teeth.

[0077] Figures 21 to 23 are drawings showing examples of different shapes of the bristles and the toothbrush bristles.

[0078] Hereinafter, a functional toothbrush according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0079] FIG. 3 is a perspective view showing a multifunctional toothbrush according to a preferred embodiment of the present invention, FIG. 4 is a plan view of FIG. 3, FIG. 5 is a plan view showing the arrangement of toothbrush bristles in a multifunctional toothbrush according to a preferred embodiment of the present invention with lines, FIG. 6 is a plan view showing another arrangement of toothbrush bristles in a multifunctional toothbrush according to a preferred embodiment of the present invention with lines, FIG. 7 is a side view of FIG. 3, FIG. 8 is a left side view of FIG. 3, FIG. 9 is a cross-sectional view taken along line AA of FIG. 7, showing toothbrush bristles planted on an inclined bristles surface, FIG. 10 is a cross-sectional view showing toothbrush bristles planted on an inclined bristles surface, and FIG. 11 is a cross-sectional view taken along line BB of FIG. 8.

[0080] And Fig. 12 is a plan view explaining how the toothbrush head prevents interference with the teeth when rotating or moving up and down by the curved portions of the first head portion and the second head portion when brushing teeth.

[0081] Figure 13 is a drawing explaining that the upper surfaces of the toothbrush bristles of the first head portion and the second head portion are formed to be curved downward, so that the toothbrush bristles closely contact the curved surface of the teeth when brushing teeth, thereby increasing the polishing and cleaning power on the surface of the teeth.

[0082] FIGS. 14 to 16 are drawings explaining that when brushing teeth, the toothbrush bristles of the first head contact the user's upper teeth and at the same time, the toothbrush bristles of the second head contact the user's lower teeth, and the user rotates the handle of the toothbrush so that the toothbrush bristles of the first head point downward and the toothbrush bristles of the second head point upward in a sweeping manner, thereby easily removing foreign substances and plaque, and the toothbrush bristles are properly inserted between teeth and between teeth and gums to cleanly remove food debris caught between teeth and between teeth and gums.

[0083] First, referring to FIGS. 3 to 11, a functional toothbrush (100) according to a preferred embodiment of the present invention has a head (110) on which a plurality of toothbrush bristles (brush: B) are planted, and a handle (120) that extends long from the head (110) for the user to grip.

[0084] In this embodiment, the toothbrush bristles (B) may be made of monofilament manufactured using nylon, which has an excellent brushing feel, as a raw material.

[0085] The toothbrush bristles of this embodiment are PBT (Polybutylene telephthalate) slip bristles, and it is preferable to use bristles with a tapered end.

[0086] [Revised 19.05.2025 by Rule 91] The head (110) may be formed with a first head portion (111) and a second head portion (112) on the left and right sides, and a third head portion (113) may be further formed on the front side. For example, the head (110) may be formed in a shape in which the front end is pointed and the sides are concave inward.

[0087]

[0088] In addition, as shown in FIGS. 4 and 5, the toothbrush bristles (B) of the first head portion (111) and the second head portion (112) may be arranged in the shape of curved portions (111a) (112a), or may be arranged in a straight line as shown in FIG. 6.

[0089]

[0090] In addition, since the upper surfaces of the toothbrush bristles (B) of the first head portion (111) and the second head portion (112) are formed to be curved downward, when brushing teeth, the toothbrush bristles (B) come into close contact along the curved surfaces of the teeth, so that the toothbrush bristles are properly inserted between the teeth and between the teeth and the gums, thereby removing food debris caught between the teeth and between the teeth and the gums more cleanly, and can be applied not only between the teeth but also between the teeth and the gums, so that areas where plaque and foreign substances are not easily removed can be effectively cleaned (see FIG. 11).

[0091]

[0092] In addition, in the case of the toothbrush bristles (B), the toothbrush bristles (B) of the first head portion (111) and the second head portion (112) are tilted to both sides and are tilted, and the toothbrush bristles (S) of the first head portion (111) and the second head portion (112) may be tilted at a certain angle toward the outside (see FIG. 9) or may be formed flat (see FIG. 10).

[0093] As shown in Fig. 9, when the bristles surface (S) is formed to be inclined at a certain angle toward the outside, the bristles (B) of the first head portion (111) and the bristles (B) of the second head portion (112) can be inclined and planted left and right.

[0094] As shown in Fig. 10, when the above-mentioned bristles surface (S) is formed flat, the bristles (B) of the first head portion (111) and the bristles (B) of the second head portion (112) can be planted at an angle by spreading out to the left and right.

[0095]

[0096] In addition, as illustrated in Fig. 5, a toothpaste groove (groove: G) may be formed between the upper surfaces of the first head portion (111) and the second head portion (112). When brushing teeth, the toothpaste does not flow out due to the toothpaste groove (G) but is maintained in the toothpaste groove (G) for a certain period of time, allowing for convenient brushing.

[0097]

[0098] Hereinafter, with reference to FIGS. 12 to 20, a functional toothbrush (100) according to the present invention will be described in detail.

[0099] By forming curved portions (111a) (112a) on the outer surfaces of the first head portion (111) and the second head portion (112), interference with the teeth when the head (110) of the toothbrush rotates or moves up and down is prevented when brushing teeth (see FIG. 12), and since the upper surfaces of the toothbrush bristles (B) of the first head portion (111) and the second head portion (112) are formed to be curved downward, when brushing teeth, the toothbrush bristles (B) come into close contact along the curved surfaces of the teeth, thereby maximizing the contact area between the toothbrush bristles (B) and the teeth, thereby improving the brushing effect (see FIG. 13).

[0100]

[0101] As described above, when the bristles (S) of the first head portion (111) and the second head portion (112) are formed to be inclined at a certain angle toward the outside, the toothbrush bristles (B) of the first head portion (111) and the toothbrush bristles (B) of the second head portion (112) can be inclined and erected by spreading outward. In this way, the toothbrush bristles (B) of the first head portion (111) and the toothbrush bristles (B) of the second head portion (112) are spread outward to reduce abrasion when cleaning the tooth surface, and the toothbrush bristles (B) can penetrate to the lower part of the gum (gingival sulcus) to cleanly remove foreign substances.

[0102] For reference, the gingival sulcus is a narrow space between the teeth and the gums that hold them in place. Through this space, infectious agents such as bacteria and inflammatory products can enter the bloodstream and affect the entire body.

[0103] The inclination angle of the toothbrush bristles (B) of the first head portion (111) and the second head portion (112) is set to, for example, 5° to 15°, preferably 10°, which is good in terms of teeth cleaning, but the inclination angle of the toothbrush bristles (B) may be changed depending on the user's oral condition.

[0104]

[0105] In addition, as illustrated in FIGS. 1 and 17, a pointed portion (113a) capable of cleaning the inside of the molars (1c) may be formed on the front portion of the third head portion (113). Since the head (110) does not interfere with the teeth and gums due to the pointed portion (113a), it is possible to cleanly clean the inside of the molars.

[0106] That is, as shown in Fig. 17, by forming a pointed portion (113a) on the front of the head (110) to have a specific directionality, it is easy to dig into the inside of the molars when brushing teeth, making it easy to remove foreign substances while minimizing damage to the teeth and gums, and allowing sufficient cleaning effect with little force, making it convenient for children and the elderly to use, and improving oral hygiene by allowing more effective brushing of the inside of the molars.

[0107]

[0108] In addition, as shown in FIGS. 14 to 16, when brushing teeth, the toothbrush bristles (B) of the first head portion (111) contact the user's upper teeth (1a), and the toothbrush bristles (B) of the second head portion (112) contact the user's lower teeth (1b). When brushing the upper teeth (1a) and lower teeth (1b), the toothbrush bristles (B) of the first head portion (111) sweep downward from top to bottom, and the toothbrush bristles (B) of the second head portion (112) sweep upward from bottom to clean the upper teeth (1a) and lower teeth (1b).

[0109]

[0110] In addition, as illustrated in FIGS. 18 to 20, the slanted arrangement structure of the toothbrush bristles (B) of the first head portion (111) and the toothbrush bristles (B) of the second head portion (112) expands the contact area with the teeth when brushing teeth, thereby preventing eccentric wear of the toothbrush bristles (B), and inserts the ends of the toothbrush bristles (B) into the gingival sulcus to easily remove food debris remaining in the gingival sulcus.

[0111] Furthermore, when brushing the molars (1c), the toothbrush bristles (B) of the first head portion (111) contact the occlusal surface of the teeth to clean them, and at the same time, the toothbrush bristles (B) of the second head portion (112) are inserted into the gingival sulcus to clean them or to clean the lingual surface and gum area of ​​the teeth.

[0112] That is, by the slanted bristles arrangement structure of the toothbrush bristles (B), the contact area with the teeth is expanded when brushing teeth (when brushing teeth), thereby preventing eccentric wear of the toothbrush bristles (B), and by inserting the tip of the toothbrush bristles (B) into the gingival sulcus, it stably protects the inside of the gingival sulcus without applying too much pressure, while also being able to cleanly remove food debris and dental plaque remaining in the gingival sulcus, and simultaneously clean the occlusal surface and buccolingual side of the teeth.

[0113]

[0114] Meanwhile, FIGS. 21 to 23 are longitudinal cross-sectional views illustrating different shapes of the bristles and the toothbrush bristles as examples.

[0115] As illustrated in FIG. 21, the toothbrush (100) of the present invention may be formed such that the bristles (S) of the head (110) are inclined outward, and the toothbrush bristles (B) are also inclined outward. The heights of the toothbrush bristles (B) may be formed to be the same. The inclination angle of the toothbrush bristles (B) may be configured to be inclined at, for example, 5 to 15 degrees with respect to the vertical line.

[0116]

[0117] As illustrated in FIG. 22, the toothbrush (100) of the present invention may be formed such that the bristles (S) of the head (110) are inclined outward, and the toothbrush bristles (B) are also inclined outward. The inclination angle of the toothbrush bristles (B) may be configured to be inclined at, for example, 5 to 15° with respect to a vertical line. The height of the toothbrush bristles (B) may be formed to gradually decrease from the outside toward the inside.

[0118]

[0119] As illustrated in FIG. 23, the toothbrush (100) of the present invention may have a flat bristles surface (S) of the head (110), and the bristles (B) may be formed to be inclined outward. The angle of inclination of the bristles (B) may be configured to be inclined at, for example, 5 to 15 degrees with respect to a vertical line. The height of the bristles (B) may be formed to be the same.

[0120]

[0121] In this way, the present invention has the following effects.

[0122] First, when the first head part and the second head part are positioned in half on the left and right sides of the head, and the inclination angle of the toothbrush bristles of the first head part and the second head part are set to a certain angle, for example, in the range of 5° to 15°, when brushing the teeth, the toothbrush bristles of the first head part contact the user's upper teeth and at the same time, the toothbrush bristles of the second head part contact the user's lower teeth, and the user rotates the handle of the toothbrush so that the toothbrush bristles of the first head part point upward and the toothbrush bristles of the second head part point upward while sweeping, so that foreign substances and plaque can be easily removed, and the toothbrush bristles can be properly inserted between the teeth and between the teeth and the gums, so that food residue caught between the teeth and between the teeth and the gums can be cleanly removed.

[0123] Second, by forming a curved portion (curved portion) on the outer surface of the first head portion and the second head portion, interference with the teeth when the toothbrush head rotates or moves up and down during brushing is prevented, and the contact area between the toothbrush bristles and the teeth is maximized, thereby increasing the polishing and cleaning power on the surface of the teeth and improving the brushing effect.

[0124] Third, since the upper surfaces of the toothbrush bristles of the first head and the second head are curved downward, when brushing teeth, the toothbrush bristles closely contact the curved surfaces of the teeth, so that the toothbrush bristles are properly inserted between the teeth and between the teeth and gums, and food debris caught between the teeth and between the teeth and gums can be more thoroughly removed. In addition, it can be applied to areas where plaque and foreign substances are not easily removed, such as between the teeth and gums, so that it can be effectively cleaned.

[0125] Fourth, a toothpaste groove is formed between the first head and the second head, so that when brushing teeth, the toothpaste does not flow out due to the toothpaste groove but is maintained in the toothpaste groove for a certain period of time, allowing for convenient brushing.

[0126] Fifth, by forming a sharp part on the front of the head to have a specific direction, it is easy to dig into the inside of the molars when brushing teeth, making it easy to remove foreign substances while minimizing damage to the teeth and gums, and it is possible to enjoy sufficient cleaning effect with little force, making it convenient for children and the elderly to use, and it can improve oral hygiene by allowing more effective brushing of the inside of the molars.

[0127] Sixth, brushing is easy, so the user does not have to apply excessive force to the teeth and gums, and because the toothbrush bristles are spread at a certain angle, the toothbrush bristles do not become deformed even if the toothbrush is used for a long time, which extends the lifespan of the toothbrush.

[0128]

[0129] Meanwhile, the present specification and drawings disclose preferred embodiments of the present invention. Although specific terms have been used, they are used in a general sense only to easily explain the technical contents of the present invention and to assist in understanding the invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modified examples based on the technical concept of the present invention are possible in addition to the embodiments disclosed herein.

[0130] For example, the shape or size of the head and handle of the toothbrush, and the arrangement structure of the toothbrush bristles are not limited to this embodiment and can be changed in various ways.

[0131] [Explanation of symbols]

[0132] 1a: Upper teeth

[0133] 1b: Lower canine

[0134] 1c: molars

[0135] 100: Toothbrush

[0136] 110: Head

[0137] 111: First Head Section

[0138] 111a: Curved section

[0139] 112: Second Head Section

[0140] 112a: Curved section

[0141] 113: Third Head Section

[0142] 113a: Point

[0143] 120: Handle

[0144] B: Toothbrush bristles

[0145] G: Toothpaste Home

[0146] S: Moss cotton

Claims

1. A toothbrush having a head (110) on which a plurality of toothbrush bristles (B) are planted, and a handle (120) that extends long from the head (110) for the user to grip, A functional toothbrush characterized in that the head (110) is formed with a first head portion (111) and a second head portion (112) on both left and right sides, and the bristles (B) are planted at a certain angle toward the outside on the planting surfaces (S) of the first head portion (111) and the second head portion (112).

2. In paragraph 1, A functional toothbrush characterized in that the bristles surfaces (S) of the first head portion (111) and the second head portion (112) are formed flat or inclined.

3. In paragraph 1, A functional toothbrush characterized in that a third head portion (113) is formed on the front side of the head (110).

4. In paragraph 1, A functional toothbrush characterized in that a curved portion (111a) (112a) is formed on the outer surface of the first head portion (111) and the second head portion (112).

5. In paragraph 3, A functional toothbrush characterized in that the third head portion (113) above has a pointed portion (113a) formed in the front portion for cleaning molars.

6. In paragraph 5, The above head (110) is " "A functional toothbrush characterized by being formed into a shape.

7. In paragraph 1, A functional toothbrush characterized in that the slanted arrangement structure of the toothbrush bristles (B) of the first head portion (111) and the toothbrush bristles (B) of the second head portion (112) expands the contact area with the teeth when brushing teeth, thereby preventing eccentric wear of the toothbrush bristles (B), and inserts the ends of the toothbrush bristles (B) into the gingival sulcus to remove food debris remaining in the gingival sulcus.

8. In paragraph 1, When brushing teeth, the toothbrush bristles (B) of the first head portion (111) contact the user's upper teeth (1a), and the toothbrush bristles (B) of the second head portion (112) contact the user's lower teeth (1b). A functional toothbrush characterized in that, when brushing the upper teeth (1a) and lower teeth (1b), the toothbrush bristles (B) of the first head portion (111) sweep downward from top to bottom, and the toothbrush bristles (B) of the second head portion (112) sweep upward from bottom to top to clean the upper teeth (1a) and lower teeth (1b).

9. In paragraph 1, A functional toothbrush characterized in that the toothbrush bristles (B) of the first head portion (111) and the toothbrush bristles (B) of the second head portion (112) are formed so that the upper surfaces thereof are curved downward, so that when brushing teeth, the toothbrush bristles (B) are in close contact with the curved surfaces of the teeth, so that the toothbrush bristles are properly inserted between teeth and between teeth and gums, thereby more thoroughly removing food debris caught between teeth and between teeth and gums.

10. In paragraph 1, A functional toothbrush characterized in that when brushing molars (1c), the toothbrush bristles (B) of the first head portion (111) contact the occlusal surface of the teeth to clean them, and at the same time, the toothbrush bristles (B) of the second head portion (112) are inserted into the gingival sulcus to clean them or to clean the lingual surface and gum area of ​​the teeth.

11. In paragraph 1, A functional toothbrush characterized in that a toothpaste groove (G) is formed between the upper surfaces of the first head portion (111) and the second head portion (112) so that toothpaste is supplied to the toothbrush bristles (B) when brushing teeth.

12. In paragraph 1, A functional toothbrush characterized in that the inclination angle of the toothbrush bristles (B) is set in the range of 5° to 15°.

13. In paragraph 4, A functional toothbrush characterized in that the toothbrush bristles (B) of the first head portion (111) and the second head portion (112) are arranged in either the shape of the curved portion (111a) (112a) or in a straight line.

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