Toothbrush

Abstract

The present invention relates to a toothbrush in which a toothbrush head can be deformed according to the dentition of an oral cavity and the shape of teeth to achieve personalized brushing of teeth, and is reinforced by silica gel reinforcing rubber to improve the stable recovery effect of the toothbrush head, thereby not only protecting gingiva from being damaged by bristles, but also having a function of strengthening gingiva, and having a good application prospect. The toothbrush comprises: a toothbrush handle; a toothbrush head having a plurality of bristle planting sections which are disposed at a distance from each other and into which toothbrush bristles are respectively planted, and elastic sections which flexibly connect adjacent bristle planting sections; and the toothbrush neck is used for connecting the toothbrush head and the toothbrush handle.

Description

Technical Field

[0001] The present invention relates to a toothbrush, which can flexibly deform according to the dentition and the shape of teeth in the oral cavity to achieve personalized brushing suitable for the dentition and teeth, and is reinforced by silicone reinforced rubber to improve the stable recovery efficiency of the toothbrush head. The toothbrush not only protects the gums from being hurt by the bristles, but also has a massage function for strengthening the gums. Background Art

[0002] In order to maintain oral health, it is important to remove dental plaque and foreign matter between teeth by brushing. In order to brush teeth effectively, it is preferable to brush the entire oral cavity without any dead corners.

[0003] However, the problem with existing toothbrushes is that when brushing molars located deep in the oral cavity, it is difficult for the toothbrush head to enter the molars due to the narrow space between the molars and the oral mucosa.

[0004] In addition, the disadvantage of the existing toothbrush is that due to the arrangement structure of the plurality of teeth in a U-shaped bending configuration, when the toothbrush head is at an angle to the teeth, only a portion of the toothbrush bristles are in contact with the teeth.

[0005] In addition, the existing toothbrush has the problem that when brushing the inner side of the premolars on either side of the upper or lower jaw, the toothbrush neck will get stuck on the premolars on the other side, making it impossible for the toothbrush head to enter the inner side of the premolars.

[0006] In order to solve these problems, the "Public Patent 10-2015-0041524" technology is proposed. Figure 1 As shown in FIG. 1 (an enlarged side view of a toothbrush head of a conventional toothbrush), a toothbrush head 20 of a conventional toothbrush is divided into a plurality of hair-planting sections 22, and each section of the hair-planting section 22 is connected by an elastic section 24, so that adjacent hair-planting sections 22 can be flexibly bent. Thus, the conventional toothbrush can be deformed according to the morphology of the dentition and teeth, and the deformation enables the user to perform personalized brushing of the teeth.

[0007] However, the existing toothbrush relies on the elastic part 24 itself for connecting the multiple bristle parts 22 to each other, so that the toothbrush head 20 is frequently bent and restored repeatedly. Therefore, the elastic part 24 is easy to lose its elasticity, and there is a problem that as the recovery rate of the toothbrush head 20 decreases, the toothbrush head 20 remains in a bent state.

[0008] On the other hand, human dentition (cf. Figure 3) Different curvatures are formed according to the incisors, canines (including premolars), and molars. Specifically, the incisors form a dentition with a relatively large curvature, and the molars form a dentition with a relatively small curvature. Therefore, when brushing the molars with a small curvature, the curvature of the toothbrush head 20 is relatively small, and when brushing the incisors and canines with a large curvature, the curvature of the toothbrush head 20 is relatively large. In particular, as Figure 3 As shown, the toothbrush head 20 bends more when brushing the inside of the teeth than the outside of the teeth, and therefore, the toothbrush head 20 bends the most when brushing the inside of the incisors and canines.

[0009] However, according to the human body structure, when a straight toothbrush is placed in the mouth, Figure 3 As shown, it can only be inserted slightly tilted, especially when brushing the inner side of the front teeth, it can only be used to brush the front teeth and canine parts together (refer to Figure 3 That is, the hair-planting portion 21a (hereinafter referred to as the "inner hair-planting portion") close to the toothbrush handle is in a posture of 1. Figure 3 ) contacts the incisor with a large curvature of the dentition, and the outer hair implantation portion 21c (refer to Figure 3 ) is in contact with the canine or molar teeth of the tooth row with a relatively small curvature. Therefore, the toothbrush head 20 exhibits a bending characteristic in which the inner bristle portion is relatively more curved and the outer bristle portion is relatively less curved during brushing.

[0010] However, the existing toothbrush has nothing to do with this bending characteristic, and its toothbrush head has the same structure at different positions. Therefore, the existing toothbrush cannot be deformed in a personalized manner suitable for the dentition, but deforms the same way in all dentitions, which is inefficient. In particular, when the deformability of the elastic portion 24 is increased in consideration of brushing the front teeth with large curvature, the inner side of the front teeth is brushed efficiently due to the smooth bending of the inner side hair implantation portion, but the outer side hair implantation portion that contacts the canine and molar parts with relatively small curvature cannot press the corresponding teeth with sufficient pressure, and deforms frequently during brushing, thereby reducing the cleaning efficiency.

[0011] In addition to this, the problem that urgently needs to be solved is that during the brushing process, the bristles will continuously stimulate the deep gums, thereby damaging the gums, and with long-term use of the teeth, the gums become soft and weak. Summary of the invention

[0012] Technical issues

[0013] The present invention is used to solve the technical problems mentioned above and aims to provide a toothbrush that can be deformed according to the shape of the dentition and teeth to achieve optimal brushing and continuously maintain the elasticity of the toothbrush head to minimize the damage caused by the bristles to the gums during brushing, thereby improving brushing and strengthening the gums.

[0014] Technical Solution

[0015] In order to solve the above technical problems, the present invention provides a toothbrush, comprising:

[0016] The toothbrush handle is formed with a through hole along the length direction;

[0017] A toothbrush head having a plurality of hair-planting portions which are spaced apart from each other and respectively implanted with toothbrush bristles, and an elastic portion which flexibly connects adjacent hair-planting portions; and

[0018] The toothbrush neck is used to connect the toothbrush head and the toothbrush handle.

[0019] Beneficial Effects

[0020] The present invention as described above sets different deformation rates for different hair implants according to the frequently contacted dentition and the shape of the teeth, thereby achieving the best personalized brushing for different teeth and continuously maintaining the elastic force of the toothbrush head.

[0021] In addition, the damage caused by the bristles to the gums during brushing is minimized, thereby improving the brushing effect and strengthening the gums.

[0022] In addition, the tongue coating accumulated on the tongue can be easily removed during the brushing process, thereby creating a refreshing oral environment.

[0023] In addition, when the user grips the toothbrush handle, the elastic force applied by the toothbrush handle can reduce the user's grip fatigue, thereby minimizing the user's fatigue when brushing teeth for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is an enlarged side view of a toothbrush head of an existing toothbrush,

[0025] Figure 2 1 is a side view showing an embodiment of a toothbrush of the present invention,

[0026] Figure 3 It shows the use of Figure 2 A diagram showing the various ways a toothbrush can clean different rows of teeth.

[0027] Figure 4 It is shown Figure 2 Side view and bottom view of the toothbrush excluding the reinforced rubber,

[0028] Figure 5 is a side view showing another embodiment of the toothbrush of the present invention,

[0029] Figure 6 is a side view showing another embodiment of the toothbrush of the present invention,

[0030] Figure 7 It is shown Figure 6 A top view and a bottom view of a toothbrush head reinforced with reinforced rubber are shown in FIG.

[0031] Figure 8 It is shown Figure 6 A bottom view of the toothbrush head with the reinforcing rubber of the toothbrush separated,

[0032] Fig. 9 It is shown from Figure 6 A top view of a toothbrush head separated from a toothbrush in FIG.

[0033] Fig.10 It is shown from Figure 6 Side view of a toothbrush head isolated from a toothbrush in

[0034] Fig.11 It is a top view showing the toothbrush handle of the toothbrush of the present invention.

[0035] Reference numerals

[0036] 10: Toothbrush handle 11: Through hole

[0037] 12: Pad 20: Toothbrush head

[0038] 21a, 21b, 21c: implanted hair part 23: toothbrush hair

[0039] 22a, 22b: elastic part 25: placement groove

[0040] 25a: Connecting groove 30: Toothbrush neck

[0041] 40, 40a to 40c: Reinforced rubber 41: Main body

[0042] 41′: auxiliary body 42: functional hair

[0043] 43: Cleaning part 44: Connecting part DETAILED DESCRIPTION

[0044] The features and effects of the present invention described above will become clearer by referring to the detailed description related to the accompanying drawings, so that those skilled in the art can easily implement the technical ideas of the present invention. The present invention can be subjected to various changes and can have various forms, and multiple specific embodiments are shown in the accompanying drawings and the text is described in detail. However, this is not to limit the present invention to a specific public form, but should be understood to include all changes, equivalents and substitutes within the scope of the present invention and technology. The terms used in this application are only used to illustrate multiple specific embodiments, and are not intended to limit the present invention.

[0045] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0046] Figure 2 1 is a side view showing an embodiment of a toothbrush of the present invention, Figure 3 It shows the use of Figure 2 Illustration of the various ways a toothbrush can brush different rows of teeth.

[0047] The toothbrush of this embodiment includes a toothbrush head 20 having a plurality of implanted hair portions 21a, 21b, 21c spaced apart from each other and each implanted with toothbrush bristles 23, and elastic portions 22a, 22b (see Figure 4 ); toothbrush neck 30, for connecting the toothbrush head 20 and the toothbrush handle 10 (refer to Figure 6 and reinforcing rubber 40a, 40b, surrounding the toothbrush head 20 to strengthen the elastic portion 22a, 22b.

[0048] The toothbrush head 20 is a component that is disposed at the front end of the toothbrush and is implanted with toothbrush bristles 23. It is connected to the toothbrush handle 10 via a toothbrush neck 30 and includes a plurality of hair-planting portions 21a, 21b, 21c and at least one elastic portion 22a, 22b. The present embodiment is composed of three hair-planting portions 21a, 21b, 21c and two elastic portions 22a, 22b that connect the hair-planting portions 21a, 21b, 21c into a row. As described above, the toothbrush head 20 is composed of the hair-planting portions 21a, 21b, 21c and the elastic portions 22a, 22b. When the toothbrush head 20 is inserted into the oral cavity and brushing is performed, the elastic portions 22a, 22b are bent in a manner corresponding to the tooth row, such as Figure 3 In addition, during the brushing process, the implanted hair portions 21a, 21b, 21c will not apply excessive pressure to one place, but will bend and make the toothbrush bristles 23 apply uniform pressure to the teeth and gums.

[0049] In addition, the toothbrush head 20 of this embodiment can easily enter the molars located deep in the oral cavity where the space is relatively narrow, thereby preventing the formation of dead corners in the oral cavity and effectively removing dental plaque and foreign matter between multiple teeth.

[0050] The hair-implanting parts 21a, 21b, 21c are formed in plurality and are arranged at predetermined intervals in the length direction of the toothbrush head 20, and the toothbrush bristles 23 are implanted in a plurality of hair-implanting holes (not shown) formed in the upper surface thereof.

[0051] For reference, the toothbrush bristles 23 of this embodiment obtain functionality by a special process (Extraction Method for Functional Plastic) of subdividing and nano-forming minerals that emit far-infrared rays, that is, minerals mixed from crystal, quartz, topaz, tourmaline, loess stone, perlite, and diatomaceous earth. In addition, anionic bristles are mixed with existing plastic bristles and spun by a special process (Extraction Method for Functional Plastic) of nano-forming organic germanium. In addition, the toothbrush bristles 23 of this embodiment add Ag (silver) as a special antibacterial ingredient to the toothbrush bristles through a nano-process to solve the problems of existing toothbrush bristles such as wear resistance, scratch resistance, and contamination. The antibacterial bristles containing Ag (silver) have excellent functions such as wear resistance, scratch resistance, weather resistance, and contamination resistance, and can reduce Escherichia coli, Staphylococcus aureus, and Klebsiella pneumoniae by 99%, thereby preventing the reproduction of bacteria and mold.

[0052] In addition, the hair-planting parts 21a, 21b, 21c and the elastic parts 22a, 22b can be made of plastic materials and formed into one. There is no particular restriction on the plastic used to make the hair-planting parts 21a, 21b, 21c and the elastic parts 22a, 22b. For example, PP (polypropylene) with excellent elasticity can be used. Of course, the hair-planting parts 21a, 21b, 21c and the elastic parts 22a, 22b can also be combined with each other after being made of the same material or different materials.

[0053] Figure 4 It is shown Figure 2 Side and bottom views of the toothbrush excluding the reinforced rubber.

[0054] At least one elastic portion 22a, 22b is formed to connect three adjacent hair-implanted portions 21a, 21b, 21c, and provides elasticity so that the plurality of hair-implanted portions 21a, 21b, 21c form a connection structure bent to each other.

[0055] The elastic portions 22a and 22b of this embodiment will be described in more detail.

[0056] As described above, the hair implantation parts 21a, 21b, and 21c can be formed into three parts, and each hair implantation part 21a, 21b, and 21c is connected by the elastic parts 22a and 22b respectively. At this time, the ratio of the spacing W1 between the inner hair implantation part 21a and the middle hair implantation part 21b and the spacing W2 between the middle hair implantation part 21b and the outer hair implantation part 21c is 2:1, so the elastic parts 22a and 22b also form a ratio of 2:1. For reference, in this embodiment, the spacing W1 between the inner hair implantation part 21a and the middle hair implantation part 21b is 1.0 to 1.4 mm, and the spacing W2 between the middle hair implantation part 21b and the outer hair implantation part 21c is 0.5 to 0.7 mm. Therefore, the curvature between the inner hair implantation portion 21a and the middle hair implantation portion 21b is greater than the curvature between the middle hair implantation portion 21b and the outer hair implantation portion 21c. Therefore, in the toothbrush head 20, the closer to the toothbrush neck 30, the greater the curvature formed.

[0057] On the other hand, in this embodiment, the ratio of the thickness d2 of the elastic parts 22a, 22b to the width of the opposing surfaces of the hair-planting parts 21a, 21b, 21c is 1:3, and the elastic parts 22a, 22b are located in the middle of the opposing surfaces of the hair-planting parts 21a, 21b, 21c. Therefore, the ratio of the width d1, d3 from the edge of the opposing surfaces of the hair-planting parts 21a, 21b, 21c to the thickness d2 of the elastic parts 22a, 22b is 1:1:1. For reference, the width of the opposing surfaces is 3.0 to 6.0 mm, and the thickness d2 of the elastic part 22a is 1.0 to 2.0 mm.

[0058] In addition, the elastic parts 22a and 22b are flat and vertically connected to the opposing surfaces of the hair-planting parts 21a, 21b and 21c so that the elastic parts 22a and 22b are bent as a whole. Therefore, when the hair-planting parts 21a, 21b and 21c are bent by external force, the elastic parts 22a and 22b of this embodiment are not bent at one place but are bent as a whole at a predetermined curvature. Figure 1 The elastic part 24 of the existing toothbrush head 20 is in a shape where the thickness gradually decreases from the hair-planting part 22. Therefore, when the toothbrush head 20 is bent by an external force, the elastic part 24 is bent only in the middle. Therefore, the hair-planting part 22 is repeatedly bent, causing the middle part to wear quickly, and thus the elastic part 24 will quickly lose its own elasticity. Therefore, the existing toothbrush head 20 has a problem of short life.

[0059] However, the thickness of the elastic parts 22a and 22b of the toothbrush head 20 of this embodiment maintains a specified shape and is vertically connected to the opposite surfaces of the hair-implanted parts 21a, 21b, and 21c. Therefore, the elastic parts 22a and 22b are uniformly bent in a curved surface as a whole, thereby increasing the life of the elastic parts 22a and 22b.

[0060] On the other hand, the reinforcing rubbers 40a and 40b surround the outer peripheries of the elastic parts 22a and 22b to fill the intervals W1 and W2 between the hair-planting parts 21a, 21b and 21c. At this time, the reinforcing rubbers 40a and 40b are filled in a manner protruding from the hair-planting parts 21a, 21b and 21c to scrape off the tongue fur, etc. In addition, as Figure 4 As shown in (b), the elastic parts 22a, 22b are preferably shaped such that their outer peripheries are recessed between the hair-implanted parts 21a, 21b, 21c so that the reinforcing rubbers 40a, 40b surround the outer peripheries of the elastic parts 22a, 22b.

[0061] Figure 5 This is a side view showing another embodiment of the toothbrush of the present invention.

[0062] The toothbrush head 20 of this embodiment may include two main reinforcing rubbers 40a, 40b filling the intervals W1, W2 between the hair-planting parts 21a, 21b, 21c, and may further include an auxiliary reinforcing rubber 40c surrounding the outer surface of the middle hair-planting part 21b.

[0063] The main reinforcing rubbers 40a and 40b fill the spacings W1 and W2 of the hair-planting parts 21a, 21b and 21c, so that when the hair-planting parts 21a, 21b and 21c bend, they play a buffering role. However, the auxiliary reinforcing rubber 40c surrounds the outer surface of the middle hair-planting part 21b that does not bend and forms a protrusion, and the protrusion formed thereby is used to scrape off foreign matter such as tongue fur.

[0064] In the present embodiment, the auxiliary reinforcing rubber 40c is formed as one in the middle hair implantation portion 21b, but the present invention is not limited thereto, and the number or shape of the auxiliary reinforcing rubber 40c may be modified in various ways.

[0065] Figure 6 is a side view showing another embodiment of the toothbrush of the present invention, Figure 7 It is shown Figure 6 A top view and a bottom view of a toothbrush head reinforced with reinforced rubber.

[0066] The toothbrush of this embodiment includes: a toothbrush handle 10, which provides a gripping surface; a toothbrush head 20, which includes a plurality of hair-planting portions 21a, 21b, 21c which are spaced apart from each other at a predetermined interval and respectively implanted with toothbrush bristles 23, and elastic portions 22a, 22b which flexibly connect adjacent hair-planting portions 21a, 21b, 21c; a toothbrush neck 30, which is used to connect the toothbrush head 20 and the toothbrush handle 10; and a reinforcing rubber 40, which surrounds the toothbrush head 20 to reinforce the elastic portions 22a, 22b.

[0067] The toothbrush handle 10 is a component that provides a gripping surface for a user to grip a toothbrush, and may include rubber for anti-slipping when gripping, etc. For reference, the anti-slip rubber for the toothbrush handle 10 may be formed to surround the lower surface of the toothbrush handle 10, or formed at the front end of the upper surface of the toothbrush handle 10.

[0068] The toothbrush handle 10 may generally have a plastic material, such as a PP (polypropylene) material, and the rubber preferably has an anti-slip material, such as a rubber material, but is not limited thereto.

[0069] The user can grasp the toothbrush handle 10 by wrapping the rubber with the index finger, middle finger, ring finger and little finger, and then press the toothbrush handle 10 with the thumb, so as to hold the toothbrush firmly.

[0070] The toothbrush head 20 is a component located at the front end of the toothbrush and implanted with toothbrush bristles 23. It is connected to the toothbrush handle 10 through the toothbrush neck 30 and may include a plurality of hair-planting parts 21a, 21b, 21c and at least one elastic part 22a, 22b, etc. In this embodiment, it is a three-section structure consisting of three hair-planting parts 21a, 21b, 21c and two elastic parts 22a, 22b that connect each hair-planting part 21a, 21b, 21c into a row. As described above, the toothbrush head 20 is composed of the hair-planting parts 21a, 21b, 21c and the elastic parts 22a, 22b. When the toothbrush head 20 is inserted into the oral cavity, each elastic part 22a, 22b bends, so that the toothbrush head 20 can be bent according to the arrangement structure of multiple teeth. Therefore, the toothbrush head 20 can easily enter the molars located deep in the oral cavity where the space is relatively narrow. This can prevent dead corners from being generated in the oral cavity, thereby effectively removing dental plaque and foreign matter between multiple teeth.

[0071] The hair-planting parts 21a, 21b, 21c can be formed in a plurality and spaced apart from each other at a predetermined interval along the length direction of the toothbrush head 20, and the toothbrush bristles 23 are implanted in a plurality of hair-planting holes (not shown) formed on the upper surface thereof. The elastic parts 22a, 22b are formed in at least one to connect two adjacent hair-planting parts 21a, 21b, 21c, and provide elasticity so that the plurality of hair-planting parts 21a, 21b, 21c form a connection structure that is bent to each other.

[0072] The toothbrush neck 30 is a component located between the toothbrush handle 10 and the toothbrush head 20 and connecting the toothbrush handle 10 to the toothbrush head 20. The toothbrush neck 30 of this embodiment allows a height difference between the toothbrush head 20 and the toothbrush handle 10 to prevent the toothbrush handle 10 from getting stuck on the incisors, canines and other premolars located in the front area of ​​the oral cavity when the toothbrush head 20 brushes the front and back of the molars. To this end, the toothbrush neck 30 of this embodiment has a bent structure so that the toothbrush handle 10 and the toothbrush head 20 are at a predetermined angle. The bending angle between the toothbrush neck 30 and the toothbrush handle 10 is within a range of 30° to 40°, and is preferably formed to be 35° based on the principle of a dental mirror.

[0073] The reinforced rubber 40 is a silicone material with toughness and elasticity, and forms a tubular body 41 to surround the outer peripheral groove of the elastic parts 22a and 22b for connecting the plurality of hair implant parts 21a, 21b, and 21c. Figure 7 As shown in (a), a through hole is formed on the bottom surface of the main body 41 to lead out the toothbrush bristles 23 in an interference-free manner, thereby avoiding interference with brushing using the toothbrush bristles 23, and freely reaching any position in the mouth without dead angles in the upper and lower jaws and their various parts.

[0074] Figure 8 It is shown Figure 6 A bottom view of the toothbrush head with the reinforcing rubber of the toothbrush separated, Fig. 9 It is shown from Figure 6 A top view of a toothbrush head separated from a toothbrush in FIG. Fig.10 It is shown from Figure 6 Side view of a toothbrush head isolated from a toothbrush.

[0075] The reinforced rubber 40 is described in more detail. As described above, the main body 41 is in the shape of a tube with a peripheral groove surrounding the elastic parts 22a and 22b. When the multiple hair-planting parts 21a, 21b, and 21c connected to each other are bent, the elastic parts 22a and 22b maintain the connection state of the multiple hair-planting parts 21a, 21b, and 21c and rebound to restore the original shape. The main body 41 of the silicone material filled in the peripheral groove and surrounding the elastic parts 22a and 22b also assists the elastic parts 22a and 22b to make the opposite ends of the multiple hair-planting parts 21a, 21b, and 21c rebound, thereby, the toothbrush head 20 has an effective restoring force. In addition, the peripheral groove is filled by the main body 41, so the side, top surface, and bottom surface of the toothbrush head 20 will not have bumps and depressions but remain flat. Therefore, it can prevent the toothbrush head 20 from getting stuck on the teeth due to the peripheral groove when brushing.

[0076] Then, if Figure 7 (b) and Fig. 9As shown, the reinforced rubber 40 of this embodiment further includes a protruding cleaning portion 43 for removing tongue coating on the top surface of the main body 41. As is well known, tongue coating such as various foreign matter may accumulate on the top surface of the tongue, and such tongue coating may cause oral discomfort. Therefore, when brushing teeth, the cleaning portion 43 may be used to wipe the tongue to remove the tongue coating, thereby enabling the user to keep the oral cavity fresh at all times.

[0077] In addition, if Figure 8 and Fig.10 As shown, the reinforced rubber 40 of this embodiment further includes functional hairs 42 surrounding the edges of the implanted hair parts 21a, 21b, 21c and located on the outer periphery of the two sides of the toothbrush bristles 23. The functional hairs 42 continuously apply gentle stimulation to the gums during repeated brushing to achieve a massage effect, and minimize the damage caused by the toothbrush bristles directly scratching the gums.

[0078] On the other hand, the reinforced rubber 40 of the present embodiment further includes an auxiliary body 41' covering a plurality of hair-planting portions 21a, 21b, 21c. The auxiliary body 41' of the present embodiment is in the shape of a plate covering the top surface of the hair-planting portions 21a, 21b, 21c to cover the different hair-planting portions 21a, 21b, 21c respectively, and the top surface may constitute a cleaning portion 43' for removing tongue coating. In the present embodiment, the auxiliary body 41' is in the shape of a plate, but may be in the shape of a tube like the main body 41, and may be formed with functional hairs 42 along the edge. For reference, in the present embodiment, a connecting portion 44 connecting the main body 41 and the auxiliary body 41' may be further formed, and the hair-planting portions 21a, 21b, 21c are formed with a placement groove 25 for receiving and placing the auxiliary body 41', and a connecting groove 25a connecting the placement groove 25 and the peripheral groove is also formed to accommodate the connecting portion 44. Therefore, the outer surfaces of the toothbrush head 20 reinforced by the reinforcing rubber 40, such as the top surface, the bottom surface and the side surface, will not be uneven due to the peripheral groove, the main body 41 and the auxiliary body 41 ′, but will be rounded.

[0079] In this embodiment, the reinforced rubber 40 is centered on the main body 41 and has auxiliary bodies 41 at both ends to completely cover the three-section hair-implanted portions 21a, 21b, and 21c. However, as long as the reinforced rubber 40 is formed to cover the peripheral groove formed by the elastic portions 22a and 22b, it can be subjected to various deformations without departing from the scope of the attached claims.

[0080] Fig.11 It is a top view showing the toothbrush handle of the toothbrush of the present invention.

[0081] The toothbrush of this embodiment is formed with a through hole 11 formed along the length direction on the toothbrush handle 10. The toothbrush handle 10 is in a slender shape with a concave middle portion, and the through hole 11 is in a slender shape with a relatively narrow width in the middle portion according to the overall shape of the toothbrush handle 10. Therefore, the user holds the concave middle portion of the toothbrush handle 10, and is physically stuck at both ends, so that the toothbrush handle 10 is firmly grasped without sliding. In addition, the user can insert the thumb into the through hole 11 of the protruding portion on one side of the toothbrush neck 30 in the through hole 11, so that the posture of holding the toothbrush handle 10 stably can be maintained in an ergonomic manner. In addition, by forming the through hole 11 on the toothbrush handle 10, the amount of components in the range of the through hole 11 can be reduced, so the total weight of the toothbrush can be reduced. In addition, the toothpaste tube can be inserted into the through hole 11 and squeezed, thereby effectively squeezing out a large amount of toothpaste remaining in the toothbrush tube. In addition, in the toothbrush handle 10 of this embodiment, the toothbrush handle 10 is squeezed or expanded according to the gripping force of the user when gripping the through hole 11, and is closely attached to the user's hand, thereby having the effect of reducing the user's grip fatigue.

[0082] On the other hand, in the toothbrush handle 10 of the present embodiment, a pad 12 of an elastic synthetic resin material is used to surround the inner surface of the through hole 11, thereby minimizing the sliding between the thumb and the palm of the user's hand in close contact, and playing a buffering function when contacting the inner surface of the recessed middle part of the through hole 11, so that the user feels comfortable when grasping the toothbrush handle 10.

[0083] In the above detailed description of the present invention, reference is made to a number of preferred embodiments of the present invention, but those skilled in the art will appreciate that various modifications and changes may be made to the present invention without departing from the spirit and technical scope of the present invention as set forth in the appended claims.

Claims

1. A toothbrush, characterized in that: include: The toothbrush handle is formed with a through hole along the length direction; The toothbrush head comprises a plurality of hair-planting parts which are arranged separately from each other and respectively implanted with toothbrush bristles, and an elastic part which flexibly connects adjacent hair-planting parts; as well as A toothbrush neck, used to connect the toothbrush head and the toothbrush handle, An elastic pad is fixed along the inner surface of the through hole.

2. The toothbrush according to claim 1, characterized in that The elastic portion is in the shape of a flat plate and vertically protrudes from opposite facing surfaces of adjacent hair implantation portions.

3. The toothbrush according to claim 2, characterized in that In the hair implantation portion, an inner hair implantation portion connected to the toothbrush neck, a middle hair implantation portion connected to the inner hair implantation portion, and an outer hair implantation portion connected to the middle hair implantation portion are arranged in a row.

4. The toothbrush according to claim 3, characterized in that The ratio of the distance between the inner hair implantation portion and the middle hair implantation portion to the distance between the middle hair implantation portion and the outer hair implantation portion is 2:

1.

5. The toothbrush according to claim 2, characterized in that The ratio of the width of the opposite surfaces of the hair-implanting portion to the thickness of the elastic portion is 3:1, and the elastic portion is located in the middle of the opposite surfaces of the hair-implanting portion.

6. The toothbrush according to claim 1 or 2, characterized in that: The toothbrush head further includes an elastic reinforcing rubber, which surrounds and fills the outer circumference of the elastic part between adjacent hair-planting parts.

7. The toothbrush according to claim 6, characterized in that The reinforced rubber further includes a cleaning portion, which is protruded from the toothbrush head and is used for removing tongue coating.

8. The toothbrush according to claim 1, characterized in that The toothbrush handle is in a shape with a concave middle portion, and the through hole is in a shape with a concave middle portion according to the shape of the toothbrush handle.

9. The toothbrush according to claim 6, characterized in that A main body is provided, and the main body connects the reinforced rubber filling between the hair-implanting parts into one body.

10. The toothbrush according to claim 9, characterized in that It further comprises an auxiliary body, which respectively covers the hair implantation parts located on both sides with the main body as the center, and the auxiliary body is connected to the main body through a connecting part.

11. The toothbrush according to claim 10, characterized in that A placement groove for accommodating the auxiliary body is formed on the top surface of the hair implantation portion covered by the auxiliary body.

12. The toothbrush according to claim 9, characterized in that Functional hairs are protrudingly formed along the edge of the main body in a manner of surrounding the toothbrush hairs.

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