Toothbrush head structure
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- HONG SHUO TECHNOLOGY CO LTD
- Filing Date
- 2026-06-03
- Publication Date
- 2026-08-03
Smart Images
Figure 0003256900000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a toothbrush head structure, and more particularly to a toothbrush head structure that enables the bristles to have different contact angles.
Background Art
[0002] Dental caries, medically known as dental caries, refers to a process in which teeth are corroded by acidic substances generated from bacterial metabolism, and hard tissues (enamel, dentin, and even pulp) are gradually eroded.
[0003] The factors of dental caries include bacteria, food, host (teeth), and time. Bacteria in dental plaque and saliva in the human mouth (such as mutans streptococci and lactobacilli) utilize food debris (especially carbohydrates) on the tooth surface for fermentation as a nutrient source. The main pathogenic bacterium, mutans streptococci, rapidly proliferates and produces acidic by-products after metabolism. The enamel on the tooth surface is damaged by long-term contact with acidic by-products, causing tooth demineralization and erosion, and as a result, the so-called dental caries generally known occurs.
[0004] Dental caries generally occur in areas where food debris accumulates easily, is difficult to clean, and the enamel is thin, such as fissures and pits on the occlusal surface of teeth. Usually, there are deep fissures on the occlusal surface of molars, where food debris and bacteria easily accumulate and are difficult to clean. Furthermore, in the adjacent surfaces of teeth, since the teeth are usually closely arranged, bacteria can easily proliferate without using dental floss, which may lead to hidden dental caries. Also, regarding the area near the gum line, the enamel at the neck of the tooth is thin (especially when the gingiva recedes, the exposed dentin becomes even more brittle), and the area near the gum line is difficult to clean, so it easily develops into dental caries and may even spread to the tooth root.
[0005] Tooth decay is not a single-step process, but rather a gradual progression. Depending on the depth of the decay, patients experience different symptoms. The initial stage is demineralization, where the enamel surface gradually loses minerals, appearing as a cloudy or discolored appearance. As the enamel continues to erode, a prominent cavity (carious cavity) forms. When the cavity reaches the dentin, the tooth becomes sensitive and more prone to pain and throbbing when exposed to hot or cold foods, or sweet or sour tastes. If the decay continues to worsen and spreads to the pulp (the nerve of the tooth), patients may experience unbearable pain and require root canal treatment. Otherwise, the tooth may die.
[0006] To avoid tooth decay, taking preventive measures is essential. These measures include developing good brushing habits, using dental floss and interdental brushes, reducing sugar intake, using fluoride and antibacterial mouthwash, getting regular dental checkups, and cultivating a healthy lifestyle. Of these, developing good brushing habits is the most effective way to prevent tooth decay.
[0007] Currently, most toothbrushes in use are inexpensive and readily available conventional manual toothbrushes. However, the cleaning effectiveness of conventional manual toothbrushes largely depends on the user's technique. If a user brushes their teeth at the wrong angle, incompletely, or for insufficient time, plaque and food debris are more likely to remain. Furthermore, excessive force on the toothbrush can cause enamel wear and gum recession. Conventional manual toothbrushes also have difficulty cleaning hard-to-reach areas such as the interproximal surfaces of teeth, the molar area, and the gingival sulcus. Therefore, consumers are increasingly considering electric toothbrushes due to their superior cleaning performance.
[0008] An electric toothbrush primarily consists of a main device for generating vibrations and a brush head used to connect to the main device. Currently, electric toothbrush brush heads include round brush heads, elongated brush heads, and the increasingly popular horseshoe-shaped (arched, horseshoe-shaped) brush heads. The horseshoe-shaped brush head resembles a brace or bite plate in appearance, with its bristles distributed inside a horseshoe-shaped groove. When in use, the user bites down on the brush head, and the horseshoe-shaped brush head covers the entire dentition at once. Simultaneously, the main device uses vibrations or sonic frequencies to make the bristles contact multiple surfaces of the teeth at the same time. As a result, electric toothbrushes using horseshoe-shaped brush heads have the effect of quickly cleaning teeth.
[0009] However, because horseshoe-shaped brush heads mostly consist of short, coarse silicone bristles and have a fixed contact angle, they cannot adequately reach the gingival sulcus or the gaps between teeth, making these areas prone to plaque buildup. For this reason, the dental community generally considers horseshoe-shaped brush heads to be more of a supplementary tool than a primary one, and that they cannot replace the round or elongated brush heads of electric toothbrushes, or even conventional toothbrushes.
[0010] Therefore, the problem of how to solve the issue that horseshoe-shaped toothbrush heads in the prior art cannot adequately reach the gingival sulcus and interdental spaces due to the fixed contact angle of the brush bristles, and how to provide horseshoe-shaped toothbrush heads with different contact angles that can effectively clean the gingival sulcus, gingival margin, and interdental spaces, is a problem to be solved by those skilled in the art. [Overview of the project]
[0011] The objective of this invention is to provide a toothbrush head structure that solves the problem that conventional horseshoe-shaped toothbrush heads cannot adequately penetrate the gingival sulcus and gaps between teeth due to the fixed contact angle of the brush bristles.
[0012] To achieve the above objectives and effects, the present invention provides a toothbrush head structure comprising a nonlinear body, a plurality of first silicone brush bristles, a plurality of first nylon brush bristles, a plurality of second nylon brush bristles, a plurality of second silicone brush bristles, and a plurality of third silicone brush bristles. The nonlinear body includes nonlinear grooves on its sides. The nonlinear grooves are formed by first grooves, second grooves, and third grooves that are sequentially arranged and interconnected. The first silicone brush bristles are arranged perpendicular to the bottom surfaces of the first and third grooves. The first nylon brush bristles are arranged on the first inner surfaces of the first, second, and third grooves. The first nylon brush bristles form a first angle with the bottom surfaces of the first, second, and third grooves. The second nylon brush bristles are arranged symmetrically to the first nylon brush bristles in a mirror image relationship and are arranged on the second inner surfaces of the first, second, and third grooves. The second silicone brush bristles are positioned adjacent to the outside of the second nylon brush bristles and on the inner edge of the nonlinear body, which is adjacent to the nonlinear groove. The third silicone brush bristles are positioned symmetrically to the second silicone brush bristles in a mirror image relationship, adjacent to the first nylon brush bristles, and on the inner edge of the nonlinear body. At the same time, the third silicone brush bristles form a second angle with the bottom surface, and the second angle is greater than the first angle. As a result, the brush bristles of the above structure achieve the effect of achieving different contact angles.
[0013] In one embodiment of the present invention, the first silicone brush bristles and the second silicone brush bristles have a first length, the first nylon brush bristles and the second nylon brush bristles have a second length, and the third silicone brush bristles have a third length, wherein the third length is greater than the second length and the second length is greater than or equal to the first length.
[0014] In one embodiment of the present invention, the diameters of the first silicone brush bristles, the first nylon brush bristles, the second nylon brush bristles, the second silicone brush bristles, and the third silicone brush bristles are 0.01 mm to 0.25 mm.
[0015] In one embodiment of the present invention, the first angle and the second angle are between 30 and 60 degrees, and a spacing angle is formed between two adjacent ends of the second silicone brush bristles and the third silicone brush bristles, and the spacing angle is between 1 and 5 degrees.
[0016] In one embodiment of the present invention, a height is formed between the end of the third silicone brush bristles and the side of the nonlinear body, and the height is 1 mm to 50 mm.
[0017] In one embodiment of the present invention, the toothbrush head structure further comprises a connecting member disposed on the bottom side of the nonlinear body, the connecting member having a connecting hole on its bottom side.
[0018] In one embodiment of the present invention, the toothbrush head structure is used to connect to a vibrating unit having a vibrating end on its side, the vibrating end corresponding to a connection hole.
[0019] In one embodiment of the present invention, the first silicone brush bristles, the first nylon brush bristles, the second nylon brush bristles, the second silicone brush bristles, and the third silicone brush bristles are formed in a cylindrical, triangular prism, quadrangular prism, or polygonal prism shape.
[0020] In one embodiment of the present invention, the nonlinear body and the nonlinear groove are formed in a horseshoe shape or a toothed arch shape. [Brief explanation of the drawing]
[0021] [Figure 1A] This is a schematic diagram of a structure according to one embodiment of the present invention. [Figure 1B] This is a front view of Figure 1A relating to the present invention. [Figure 1C] This is a plan view of Figure 1A relating to the present invention. [Figure 1D] This is a partially enlarged view of Figure 1C relating to the present invention. [Figure 1E] This is a partially enlarged view of Figure 1C relating to the present invention. [Figure 2A]It is a partial enlarged view of FIG. 1C according to the present invention. [Figure 2B] It is a partial enlarged view of FIG. 1C according to the present invention. [Figure 3] It is a schematic view of a usage state diagram according to an embodiment of the present invention. [Figure 4A] It is a cross-sectional view of the brush bristles according to the present invention. [Figure 4B] It is a cross-sectional view of the brush bristles according to the present invention. [Figure 4C] It is a cross-sectional view of the brush bristles according to the present invention. [Figure 4D] It is a cross-sectional view of the brush bristles according to the present invention. Detailed Description of the Invention
[0022] To more clearly explain the object, technical solution, and advantages of the present invention, the present invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts related to the present invention.
[0023] The accompanying drawings show schematic views of the layer structure according to embodiments of the present invention. These drawings are not to scale, some details are enlarged for clarity, and some details may be omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely illustrative and may actually deviate due to manufacturing tolerances or technical limitations. Those skilled in the art can design regions / layers having different shapes, sizes, and relative positions according to actual needs.
[0024] Obviously, the above embodiments are only a part of the embodiments of the present invention and do not cover all embodiments. All other embodiments that those skilled in the art can obtain without creative effort based on the embodiments of the present invention are included in the protection scope of the present invention.
[0025] It should be noted that in this description of the invention, the terms "first," "second," and "third" are used solely for illustrative purposes and should not be interpreted as suggesting or implying any relative importance.
[0026] Furthermore, the technical features relating to the different embodiments of the present invention described below can be combined with each other, insofar as they do not contradict each other.
[0027] In the prior art, electric toothbrush brush heads currently include round brush heads, elongated brush heads, and horseshoe-shaped (arched, U-shaped) brush heads. The horseshoe-shaped brush head resembles a brace or bite plate in appearance, with its bristles distributed inside a horseshoe-shaped groove. When in use, the user bites down on the brush head, allowing the horseshoe-shaped brush head to cover the entire dentition for cleaning. However, because the bristles of the horseshoe-shaped brush head in the prior art have a fixed contact angle, the horseshoe-shaped brush head in the prior art has a problem in that, due to the configuration of its bristles, it cannot adequately reach into the gingival sulcus and gaps between teeth for cleaning.
[0028] In view of the problems of the prior art described above, the present invention provides a toothbrush head structure comprising a nonlinear (non-linear) body, a plurality of first silicone brush bristles, a plurality of first nylon brush bristles, a plurality of second nylon brush bristles, a plurality of second silicone brush bristles, and a plurality of third silicone brush bristles. The side of the nonlinear body has nonlinear grooves comprising a first groove, a second groove, and a third groove. The first silicone brush bristles are arranged perpendicular to the bottom surfaces of the first and third grooves. The first nylon brush bristles are arranged on the first inner surfaces of the first, second, and third grooves, forming a first angle with the bottom surface. The second nylon brush bristles are arranged symmetrically to the first nylon brush bristles in a mirror image relationship. The third silicone brush bristles are arranged adjacent to the first nylon brush bristles on the inner edge of the nonlinear body, forming a second angle with the bottom surface, the second angle being larger than the first angle. This solves the problem in the prior art where the fixed contact angle of the brush bristles prevents the horseshoe-shaped toothbrush head from adequately penetrating the gingival sulcus and gaps between teeth.
[0029] Please refer to Figures 1A and 1B. Figure 1A is a schematic diagram of the structure according to one embodiment of the present invention, and Figure 1B is a front view of Figure 1A according to the present invention. As shown in Figures 1A and 1B, this embodiment provides a toothbrush head structure 1 comprising a nonlinear body 10, a plurality of first silicone brush bristles 20, a plurality of first nylon brush bristles 30, a plurality of second nylon brush bristles 40, a plurality of second silicone brush bristles 50, and a plurality of third silicone brush bristles 60. The nonlinear body 10 includes a nonlinear groove 12 on its side. This nonlinear groove 12 includes a first groove 121, a second groove 123, and a third groove 125 that are sequentially adjacent to each other and connected. In other words, the nonlinear groove 12 is formed by connecting sequentially adjacent first grooves 121, 2 grooves 123, and 3 grooves 125.
[0030] As described above, in this embodiment, as shown in Figures 1A and 1B, the nonlinear body 10 and the nonlinear groove 12 are formed in a horseshoe or tooth arch shape.
[0031] Nylon, such as nylon-6 and nylon-XY, is the world's first completely synthetic fiber, and its raw materials include carbon, hydrogen, oxygen, and nitrogen. From a chemical standpoint, nylon is a condensation polymer, and its main structural units are linked by amides. Therefore, nylon is also a type of polyamide. Brush bristles made of nylon have strong toughness, excellent elasticity, and high hydrophilicity.
[0032] The hardness of nylon brush bristles can be adjusted by changing the material formulation and manufacturing process. For example, the use of different types of nylon (such as nylon 6 and nylon 66) and their additive modifiers affects the hardness of the bristles. Furthermore, the design of the bristle diameter and length, as well as the processing method of the bristles, also affects the final hardness during manufacturing. Therefore, nylon brush bristles can be classified into soft, medium, and hard based on their feel (i.e., hardness).
[0033] Silica gel is a granular, amorphous, solid, porous silica hydrate with stable chemical properties, excellent resistance to high and low temperatures (approximately -60°C to over 230°C), good elasticity, good flexibility, non-toxicity, odorlessness, waterproofing, and insulating properties. Due to its excellent safety, non-toxicity, and durability, silica gel is widely used in medical devices, food and kitchenware, household goods, electronic products, and baby products. In the fields of household goods and baby products, silica gel is also frequently used in the manufacture of brush bristles for electric toothbrush heads.
[0034] As described above, in this embodiment, as shown in Figures 1A and 1B, each of the first silicone brush bristles 20 is positioned on the bottom surfaces 122 of the first groove 121 and the third groove 125 located on either side of the nonlinear groove 12.
[0035] Following the above, in this embodiment, the first groove 121 and the third groove 125 are designed to accommodate the distribution of teeth with larger occlusal surfaces, such as premolars and molars (including wisdom teeth) in children or adults.
[0036] However, since the first groove 121 and the third groove 125 are designed to accommodate the distribution of teeth with larger occlusal surfaces, such as premolars and molars (including wisdom teeth) in children or adults, it can be understood that in this embodiment, the first silicone brush bristles 20 are positioned on the bottom surface 122 of the first groove 121 and the third groove 125, which correspond to teeth with larger occlusal surfaces, such as premolars and molars (including wisdom teeth) in children or adults.
[0037] As described above, in this embodiment, as shown in Figures 1A and 1B, the first nylon brush bristles 30 are arranged on the first inner surface 124 of the first groove 121, the second groove 123, and the third groove 125, respectively, and the second nylon brush bristles 40 are arranged on the second inner surface 126 of the first groove 121, the second groove 123, and the third groove 125, respectively, with the second nylon brush bristles 40 arranged symmetrically to the first nylon brush bristles 30 in a mirror image relationship.
[0038] As described above, in this embodiment, as shown in Figures 1A and 1B, the first nylon brush bristles 30 and the second nylon brush bristles 40 are arranged on the first inner surface 124 and the second inner surface 126 in layers of one, two, three, or more layers, respectively. Therefore, this invention does not limit the number of layers of the first nylon brush bristles 30 and the second nylon brush bristles 40.
[0039] As described above, as shown in Figures 1A and 1B, in this embodiment, the second silicone brush bristles 50 are located adjacent to the outside of the second nylon brush bristles 40 and are positioned on the inner edge of the nonlinear body 10. This inner edge is adjacent to the nonlinear groove 12. The third silicone brush bristles 60 are located symmetrically to the second silicone brush bristles 50 in a mirror image relationship, and the third silicone brush bristles 60 are located adjacent to the first nylon brush bristles 30 and are positioned on the inner edge of the nonlinear body 10.
[0040] As described above, as shown in Figures 1A and 1B, in this embodiment, the diameters of the first silicone brush bristles 20, the first nylon brush bristles 30, the second nylon brush bristles 40, the second silicone brush bristles 50, and the third silicone brush bristles 60 are 0.01 mm to 0.25 mm, which allows the first silicone brush bristles 20, the first nylon brush bristles 30, the second nylon brush bristles 40, and the second silicone brush bristles 50 to penetrate deep into the gaps between teeth, enabling effective cleaning.
[0041] According to the Bass brushing technique, the optimal contact angle between toothbrush bristles and the outer and inner surfaces of teeth is 45 degrees, and the optimal contact angle between toothbrush bristles and the occlusal surface of teeth is 90 degrees. In the case of electric toothbrushes with horseshoe-shaped heads, the user bites down on the brush head to clean their teeth. Therefore, it is difficult for the user to manually adjust the electric toothbrush to maintain the optimal contact angle between the bristles of the horseshoe-shaped brush head and each part of the tooth. Furthermore, in existing technology, the bristles of a horseshoe-shaped brush head are arranged at the same contact angle on the inside of the brush head. Therefore, when using a horseshoe-shaped brush head for cleaning, due to this characteristic, the bristles cannot penetrate sufficiently into the gingival sulcus and interdental spaces on the outer and inner surfaces of the teeth.
[0042] However, to solve the problem that existing horseshoe-shaped toothbrush heads cannot adequately reach the gingival sulcus and interdental spaces for cleaning, this invention employs first nylon brush bristles 30, second nylon brush bristles 40, second silicone brush bristles 50, and third silicone brush bristles 60 arranged at different angles on the first inner surface 124 and second inner surface 126, respectively, allowing the brush bristles within the toothbrush head structure 1 to have different contact angles with the teeth. This will be explained below.
[0043] The above is followed by a reference to Figures 1C and 1D. Figure 1C is a plan view of Figure 1A of the present invention, and Figure 1D is a partial enlargement of Figure 1C of the present invention. As shown in Figures 1C and 1D, in this embodiment, the first silicone brush bristles 20 are arranged vertically on the bottom surface 122.
[0044] As described above, as shown in Figures 1C and 1D, in this embodiment, the first nylon brush bristles 30 are arranged on the first inner surface 124, and the third silicone brush bristles 60 are arranged adjacent to the first nylon brush bristles 30 on the inner edge of the nonlinear body 10. At the same time, the first nylon brush bristles 30 have a first angle θ1 with the bottom surface 122, and the third silicone brush bristles 60 have a second angle θ2 with the bottom surface 122, with the second angle θ2 being greater than the first angle θ1.
[0045] Referring to Figure 1E, which is a partial enlargement of Figure 1C relating to the present invention, in this embodiment, the second nylon brush bristles 40 are arranged symmetrically to the first nylon brush bristles 30 in a mirror image relationship, and the third silicone brush bristles 60 are arranged symmetrically to the second silicone brush bristles 50 in a mirror image relationship. Therefore, it can be understood that the second nylon brush bristles 40 and the bottom surface 122 have a first angle θ1, and the second silicone brush bristles 50 and the bottom surface 122 have a second angle θ2.
[0046] As described above, in this embodiment, the first angle θ1 and the second angle θ2 are 30 to 60 degrees, as shown in Figures 1C, 1D, and 1E. Furthermore, an interval angle θ3 of 1 to 5 degrees is formed between each of two adjacent ends of the second silicone brush bristles 50 and between each of two adjacent ends of the third silicone brush bristles 60.
[0047] As described above, in this embodiment, as shown in Figures 1C, 1D, and 1E, the present invention utilizes the characteristic that the second angle θ2 is greater than the first angle θ1. When the user's teeth bite into the nonlinear grooves 12 of the toothbrush head structure 1 for cleaning, the first nylon bristles 30 and the second nylon bristles 40 contact the outer and inner surfaces of the teeth (including incisors, canines, premolars, molars, and wisdom teeth) (not shown) at the first angle θ1 and penetrate into the interproximal surfaces (gaps between teeth). At the same time, because the cervical region (the part of the tooth closest to the gums) and gums are in a higher position and the angle between the gingival sulcus and the occlusal surface of the tooth is greater, the first nylon brush bristles 30 and the second nylon brush bristles 40 contact the tooth at a first angle θ1, touching the outer and inner surfaces of the tooth (including incisors, canines, premolars, molars, and wisdom teeth) (not shown), as well as the interdental surfaces (gaps between teeth), while the second silicone brush bristles 50 and the third silicone brush bristles 60 clean the cervical region (the part of the tooth closest to the gums), gingival sulcus, and gingival region of the outer and inner surfaces of the tooth at a second angle θ2, which is greater than the first angle θ1. This achieves the effect of cleaning various parts of the tooth. In other words, by utilizing the characteristic that the second angle θ2 is greater than the first angle θ1, this invention solves the problem of existing horseshoe-shaped toothbrush heads in which existing brush bristles cannot sufficiently penetrate the gingival sulcus and interdental spaces because they contact the tooth at a fixed contact angle.
[0048] As described above, in this embodiment, as shown in Figures 1C, 1D, and 1E, the present invention utilizes the characteristic that each of the first silicone brush bristles 20 is positioned perpendicularly on the bottom surface 122 of the first groove 121 and the third groove 125. When the user's teeth bite into the nonlinear grooves 12 of the toothbrush head structure 1 for cleaning, the first silicone brush bristles 20 effectively clean the fissures and pits of teeth with large occlusal surfaces (such as premolars, molars, and wisdom teeth).
[0049] Next, in order to enable the toothbrush head structure 1 to provide a better teeth cleaning effect, the present invention further describes the first silicone brush bristles 20, the first nylon brush bristles 30, the second nylon brush bristles 40, the second silicone brush bristles 50, and the third silicone brush bristles 60 as follows.
[0050] Please refer again to Figure 1C and then to Figure 2A, which is a partial enlargement of Figure 1C. As shown in Figures 1C and 2A, in this embodiment, the first silicone brush bristles 20 are arranged vertically on the bottom surface 122, the first nylon brush bristles 30 are arranged on the first inner surface 124, and the third silicone brush bristles 60 are arranged adjacent to the first nylon brush bristles 30 on the inner edge of the nonlinear body 10. The first silicone brush bristles 20 have a first length L1, the first nylon brush bristles 30 have a second length L2, and the third silicone brush bristles 60 have a third length L3, where the third length L3 is greater than the second length L2 and the second length L2 is greater than or equal to the first length L1.
[0051] Continuing from the above, referring to Figure 2B, which is a partially enlarged view of Figure 1C relating to the present invention, as shown in Figures 1C, 2A, and 2B, in this embodiment, the second nylon brush bristles 40 are arranged symmetrically to the first nylon brush bristles 30 in a mirror image relationship, and the third silicone brush bristles 60 are arranged symmetrically to the second silicone brush bristles 50 in a mirror image relationship. Therefore, it can be understood that the second nylon brush bristles 40 and the first nylon brush bristles 30 have the same second length L2, and the third silicone brush bristles 60 and the second silicone brush bristles 50 have the same third length L3.
[0052] As described above, in this embodiment, as shown in Figures 1C, 2A, and 2B, the first length L1, the second length L2, and the third length L3 are 10 mm to 100 mm.
[0053] Following the above, as shown in Figures 1C and 2A, in this embodiment, a height H is formed between each end of the third silicone brush bristles 60 and the side of the nonlinear body 10. This height H is formed to be between 1 mm and 50 mm.
[0054] As described above, in this embodiment, as shown in Figures 1C, 2A, and 2B, the third silicone brush bristles 60 are arranged symmetrically to the second silicone brush bristles 50 in a mirror image relationship, so it can be understood that a height H is also formed between each end of the third silicone brush bristles 60 and the side of the nonlinear body 10.
[0055] As described above, in this embodiment, since teeth have an irregular three-dimensional structure that differs from person to person, as shown in Figures 1C, 2A, and 2B, the present invention utilizes the following: The lengths of the second silicone brush bristles 50 and the third silicone brush bristles 60 (third length L3) are greater than the lengths of the first nylon brush bristles 30 and the second nylon brush bristles 40 (second length L2), and the lengths of the first nylon brush bristles 30 and the second nylon brush bristles 40 (second length L2) are greater than or equal to the length of the first silicone brush bristles 20 (first length L1). At the same time, the second silicone brush bristles 50 and the third silicone brush bristles 60 protrude from the side of the nonlinear body 10 by a height H, thereby making the toothbrush head structure 1 suitable for different users (e.g., children and adults), allowing the first silicone brush bristles 20, the first nylon brush bristles 30, the second nylon brush bristles 40, the second silicone brush bristles 50, and the third silicone brush bristles 60 to better cover the user's teeth, and achieving the effect of allowing the first silicone brush bristles 20, the first nylon brush bristles 30, the second nylon brush bristles 40, the second silicone brush bristles 50, and the third silicone brush bristles 60 to get closer to or penetrate deeper into the user's teeth during use.
[0056] Next, the actual use of the toothbrush head structure according to the present invention will be described.
[0057] Please refer to Figure 3, a schematic diagram of the usage state according to one embodiment of the present invention. As shown in Figure 3, in this embodiment, the toothbrush head structure 1 is used to connect to the vibrating unit 3. The side of the vibrating unit 3 has a vibrating end 32. The toothbrush head structure 1 further comprises a connecting member 70 located on the bottom side of the nonlinear body 10. The connecting member 70 includes a connecting hole 72 on its bottom side, and the connecting hole 72 corresponds to the vibrating end 32. Thus, the vibrating end 32 is configured to be inserted into the connecting hole 72.
[0058] Following the above, as shown in Figure 3, in this embodiment, when the toothbrush head structure 1 is connected to the vibrating end 32 via the connection hole 72, the vibrating unit 3 generates vibration energy (not shown) and transmits this vibration energy to the nonlinear body 10 of the toothbrush head structure 1 via the vibrating end 32.
[0059] Continuing from the above, refer again to Figure 1B. As shown in Figures 1B and 3, in this embodiment, when the vibrating unit 3 transmits vibration energy to the nonlinear body 10 of the toothbrush head structure 1 via the vibrating end 32, the nonlinear body 10 vibrates in response to the vibration energy. Simultaneously, the first silicone brush bristles 20, the first nylon brush bristles 30, the second nylon brush bristles 40, the second silicone brush bristles 50, and the third silicone brush bristles 60 vibrate in response to the vibration energy. Thus, when the user bites into the nonlinear groove 12, various parts of the user's teeth (including the surfaces of the incisors, canines, premolars, molars, and wisdom teeth, interdental spaces, cervical areas, gingival sulci, and gums) are cleaned by the vibrating first silicone brush bristles 20, the first nylon brush bristles 30, the second nylon brush bristles 40, the second silicone brush bristles 50, and the third silicone brush bristles 60.
[0060] Following on from the above, in this embodiment, the vibrations generated by the nonlinear body 10 in response to vibration energy are not limited to sonic vibrations or ultrasonic vibrations.
[0061] Furthermore, the toothbrush head structure 1 according to the present invention has first silicone brush bristles 20, first nylon brush bristles 30, second nylon brush bristles 40, second silicone brush bristles 50, and third silicone brush bristles 60 of different forms, which will be described in detail below.
[0062] Please refer to Figure 4A, a cross-sectional view of the brush bristles according to the present invention. As shown in Figure 4A, in this embodiment, the first silicone brush bristles 20, the first nylon brush bristles 30, the second nylon brush bristles 40, the second silicone brush bristles 50, and the third silicone brush bristles 60 are cylindrical.
[0063] Continuing from the above, referring to Figure 4B, as shown in Figure 4B, in this embodiment, the first silicone brush bristles 20, the first nylon brush bristles 30, the second nylon brush bristles 40, the second silicone brush bristles 50, and the third silicone brush bristles 60 are triangular prism-shaped.
[0064] Continuing from the above, referring to Figure 4C, as shown in Figure 4C, in this embodiment, the first silicone brush bristles 20, the first nylon brush bristles 30, the second nylon brush bristles 40, the second silicone brush bristles 50, and the third silicone brush bristles 60 are rectangular prisms.
[0065] Continuing from the above, referring to Figure 4D, as shown in Figure 4D, in this embodiment, the first silicone brush bristles 20, the first nylon brush bristles 30, the second nylon brush bristles 40, the second silicone brush bristles 50, and the third silicone brush bristles 60 are polygonal prisms such as pentagonal prisms.
[0066] In summary, the present invention provides a toothbrush head structure comprising a nonlinear body, a first silicone brush bristle, a first nylon brush bristle, a second nylon brush bristle, a second silicone brush bristle, and a third silicone brush bristle. The side of the nonlinear body has nonlinear grooves, which are formed by first, second, and third grooves that are sequentially adjacent and interconnected. The first silicone brush bristle is positioned perpendicular to the bottom surfaces of the first and third grooves.
[0067] The first and second nylon brush bristles are arranged symmetrically in a mirror image relationship on the first and second inner surfaces of the first, second, and third grooves, respectively, forming a first angle with the bottom surface.
[0068] The second silicone bristles are adjacent to the second nylon bristles, and the third silicone bristles are adjacent to the first nylon bristles. The second and third silicone bristles are arranged symmetrically in a mirror image relationship on the inner edge of the nonlinear body, forming a second angle with the base.
[0069] Specifically, by using a second angle that is larger than the first angle, when the user's teeth bite into the nonlinear grooves of the toothbrush head for cleaning, the first and second nylon bristles contact the outer and inner surfaces of the teeth (including incisors, canines, premolars, molars, and wisdom teeth) at the first angle and penetrate deeply into the interproximal surfaces (gaps between teeth). At the same time, because the cervical region (the part of the tooth closest to the gum line) and the gum line are positioned higher, and the angle between the gingival sulcus and the occlusal surface of the tooth is greater, the first and second nylon brush bristles contact the outer and inner surfaces of the teeth (including incisors, canines, premolars, molars, and wisdom teeth) and the interproximal surfaces (spaces between teeth) at a first angle, allowing the bristles to penetrate deeply into the interproximal surfaces (spaces between teeth). Meanwhile, the second and third silicone brush bristles, which have a second angle greater than the first angle, clean the outer and inner surfaces of the teeth, specifically the cervical region (the part of the tooth closest to the gum), the gingival sulcus, and the gum region. This allows the toothbrush head structure to clean various parts of the tooth. In other words, this invention solves the problem of existing horseshoe-shaped toothbrush heads, where the bristles contact the tooth at the same angle, preventing them from penetrating sufficiently into the gingival sulcus and interdental spaces.
[0070] The above description represents merely preferred embodiments of the present invention. All equivalent changes and modifications made within the scope of the utility model claims of the present invention are included within the scope of the present invention.
Claims
1. It is a toothbrush head structure, It comprises a nonlinear body, a plurality of first silicone brush bristles, a plurality of first nylon brush bristles, a plurality of second nylon brush bristles, a plurality of second silicone brush bristles, and a plurality of third silicone brush bristles. The nonlinear body includes nonlinear grooves on its sides, and the nonlinear grooves include a first groove, a second groove, and a third groove that are adjacent to each other and connected sequentially. The first silicone brush bristles are arranged on the bottom surface of the first groove and the bottom surface of the third groove, The first nylon brush bristles are arranged on the first inner surface of the first groove, the first inner surface of the second groove, and the first inner surface of the third groove, and are positioned adjacent to the first silicone brush bristles. The second nylon brush bristles are arranged symmetrically with respect to the first nylon brush bristles and are positioned on the second inner surface of the first groove, the second inner surface of the second groove, and the second inner surface of the third groove, respectively. The second silicone brush bristles are positioned adjacent to the outside of the second nylon brush bristles and on the inner edge of the nonlinear body, which is provided adjacent to the nonlinear groove. The third silicone brush bristles are arranged symmetrically with respect to the second silicone brush bristles and are positioned adjacent to the first nylon brush bristles on the inner edge of the nonlinear body. A toothbrush head structure wherein the first silicone bristles are arranged perpendicular to the bottom surface of the first groove and the bottom surface of the third groove, the first nylon bristles have a first angle with respect to the bottom surface of the first groove and the bottom surface of the third groove, and the third silicone bristles have a second angle with respect to the bottom surface of the first groove and the bottom surface of the third groove, the second angle being greater than the first angle.
2. The toothbrush head structure according to claim 1, wherein the first silicone brush bristles and the second silicone brush bristles have a first length, the first nylon brush bristles and the second nylon brush bristles have a second length, and the third silicone brush bristles have a third length, the third length being greater than the second length, and the second length being greater than or equal to the first length.
3. The toothbrush head structure according to claim 2, wherein the first length, the second length, and the third length are 10 mm to 100 mm.
4. The toothbrush head structure according to claim 1, wherein the diameter of the first silicone brush bristles, the diameter of the first nylon brush bristles, the diameter of the second nylon brush bristles, the diameter of the second silicone brush bristles, and the diameter of the third silicone brush bristles are 0.01 mm to 0.25 mm.
5. The toothbrush head structure according to claim 1, wherein the first angle and the second angle are between 30 and 60 degrees, and a spacing angle is formed between two adjacent ends of the second silicone brush bristles and the third silicone brush bristles, the spacing angle being between 1 and 5 degrees.
6. The toothbrush head structure according to claim 1, wherein a height is formed between the end of the third silicone brush bristles and the side of the nonlinear body, and the height is 1 mm to 50 mm.
7. The toothbrush head structure according to claim 1, further comprising a connecting member disposed on the bottom side of the nonlinear body, wherein the connecting member includes a connecting hole on its bottom side.
8. The toothbrush head structure according to claim 7, wherein the toothbrush head structure is used to connect to a vibrating unit having a vibrating end on its side, and the vibrating end corresponds to the connection hole.
9. The toothbrush head structure according to claim 1, wherein the first silicone brush bristles, the first nylon brush bristles, the second nylon brush bristles, the second silicone brush bristles, and the third silicone brush bristles are formed in a cylindrical, triangular prism, quadrangular prism, or polygonal prism shape.
10. The toothbrush head structure according to claim 1, wherein the nonlinear body and the nonlinear grooves are formed in a horseshoe shape or a dental arch shape.