Replaceable interdental brush having a core brush body and method for manufacturing the same
The replaceable interdental brush with an amorphous alloy core and detachable design addresses breakage issues, enhancing durability and eco-friendliness by allowing brush body replacement, ensuring effective interdental cleaning.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- TAIZHOU UNIV
- Filing Date
- 2024-06-07
- Publication Date
- 2026-05-21
AI Technical Summary
Existing interdental brushes with metal wire cores are prone to breakage, leading to early discarding and environmental waste due to non-replaceable designs, limiting their usability and eco-friendliness.
A replaceable interdental brush design featuring a core brush body made of amorphous alloy wires, a grip with a male thread, a rotating lid with a female thread, and a fixing block, allowing the brush body to be detached and replaced, with a polyethylene grip for enhanced durability and comfort.
The design enables easy replacement of the brush body, extends the brush's lifespan, and maintains durability with amorphous alloy wires, promoting environmental sustainability and effective interdental cleaning.
Smart Images
Figure 0007863387000001 
Figure 0007863387000002 
Figure 0007863387000003
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of tooth cleaning, and more specifically to a replaceable interdental brush having a core brush body and a manufacturing method thereof.
Background Art
[0002] A toothbrush is an oral cleaning appliance that is inseparable from daily life. There are many types of toothbrushes in the market, which can be classified into ordinary toothbrushes, spray toothbrushes, electric toothbrushes, room-type toothbrushes, single-head toothbrushes, interdental brushes, etc. according to their functions. Among them, the interdental brush is used to remove debris and dirt between teeth and is beneficial for cleaning between teeth. Generally used interdental brushes consist of a grip and a brush body formed by bent and twisted thin metal wires, and brush hairs are implanted between these metal wires. The brush body is generally cylindrical or conical, and the grip is generally made of synthetic resin and is often cylindrical in size suitable for holding by hand. The root part of the metal wire of the brush body is usually fixed to the grip using other physical bonding means including insert molding, heat bonding by high frequency and ultrasonic waves, so that the brush body and the grip are integrated, and the metal brush body cannot be separated and replaced. Currently, in the market, steel wire is often used as the metal wire in the core of the brush body of the interdental brush, but the toughness of this metal wire is generally such that it is easy to damage the metal wire in a very short time, and after being used several times, it will break at the root of the brush body (that is, the connection part between the brush body and the grip), so the entire interdental brush is discarded and the grip cannot be recycled either. The number of uses of such an interdental brush is small and it is not environmentally friendly.
[0003] Therefore, there is an urgent need to provide a replaceable interdental brush having a core brush body and a manufacturing method thereof.
Summary of the Invention
[0004] In view of this, an object of the present invention is to provide a replaceable interdental brush having a core brush body and a manufacturing method thereof in order to solve the problems in the prior art.
[0005] To achieve the above object, the present invention provides a replaceable interdental brush having a grip, a rotating lid, a fixed block, and a brush body. A male thread is provided at an end of the grip, and a female thread is provided inside the rotating lid. The male thread at the end of the grip is adapted to the female thread inside the rotating lid. One end of the fixed block abuts against the grip, and the other end protrudes from the rotating lid. The brush body includes a core portion and brush bristles. The core portion is formed by twisting amorphous alloy wires. One end of the core portion is clamped inside the fixed block, and the brush bristles are connected to the circumferential side of the other end to form a core portion brush body.
[0006] Furthermore, a male thread is provided at one end of the grip, and a concavo-convex pattern is formed on the outer surface of the other end.
[0007] Furthermore, a gradient is provided at one end inside the rotating lid, and a female thread adapted to the male thread of the grip is provided at the other end.
[0008] Furthermore, the core portion includes a free end and a fixed end connected to each other. The fixed end is clamped inside the fixed block, and the brush bristles are wound around one side of the free end of the core portion and distributed radially.
[0009] Furthermore, the fixed block includes two clips provided symmetrically on the left and right. A through hole for fixing the fixed end of the core portion is provided at the center thereof, and an inclined surface adapted to the gradient at one end inside the rotating lid is provided at one end outside thereof.
[0010] Furthermore, the amorphous alloy wire includes Zr 49 Cu 45 Al6 amorphous alloy wire, Zr 58 Cu 22 Fe8Al 12 amorphous alloy wire, Zr 48 Cu 36 Ag8Al8 amorphous alloy wire, Zr 46.3 Cu 43.4 Al 8.3 Nb2 amorphous alloy wire, Zr 62.3 Cu22.5 Fe 4.9 Al 6.8 Ag 3.5 Amorphous alloy wire, Ti 40 Zr 10 Cu 40-x Pd 10+x (x=0, 2, 4, 6, 8, 10) Amorphous alloy wire, Ti 40 Zr 10 Cu 34 Pd 14 Sn2 amorphous alloy wire, Ti 44 Zr 10 Pd 10 Cu 6+x Co 23-x Ta7(x=0,4,8) amorphous alloy wire, Ti 47 Cu 38-x Zr 7.5 Fe 2.5 Sn2Si1Ag2Nb x (x=0, 1, 2) Amorphous alloy wire, Ti 47 Cu 38-x Zr 7.5 Fe 2.5 Sn2Si1Ag2Ta x (x=1, 2, 3, 4) Amorphous alloy wire and Pd 78 Si 16 It contains one of the following types of Cu6 amorphous alloy wire.
[0011] A method for manufacturing a replaceable interdental brush having a core brush body, S1 involves twisting an amorphous alloy wire spirally around a central axis to create a core, and then using a bristle implanting machine to implant brush bristles radially into the free end of the core to create the brush body. S2 is formed by injecting injection molding material into a mold and manufacturing a grip using an injection molding machine, with a male screw at one end of the grip and a textured pattern formed on the outer surface of the other end. Injection molding material is injected into a mold, and a rotating lid is manufactured by an injection molding machine. The rotating lid has a slope at one end and a female thread at the other end that fits the male thread at one end of the grip. An injection molding material is injected into a mold, and a fixing block is manufactured by an injection molding machine, the fixing block including two clips arranged symmetrically on the left and right, the center of which is provided with a through hole for fixing the fixing end of the core, and the outer end of which is provided with an inclined surface that conforms to the slope at the inner end of the rotating lid, S4. [Effects of the Invention]
[0012] The beneficial effects of this invention are as follows. This invention features a simple structure, is easy to manufacture, environmentally friendly, and suitable for widespread use and application. The fixed end of the brush body is fastened to the tip of the grip by a fixing block and a rotating cap. This design allows the broken brush body to be replaced during use, while other parts are reusable. The amorphous alloy wire has high strength, good toughness, does not contain elements harmful to the human body, is resistant to breakage during use, and is a highly durable interdental brush. [Brief explanation of the drawing]
[0013] [Figure 1] This is a schematic diagram of the structure of the present invention. [Figure 2] This is an exploded view of the present invention. [Figure 3] This is a schematic diagram of the structure of the brush body according to the present invention. [Figure 4] This is a schematic diagram of the structure of the fixed block according to the present invention. [Figure 5] This is a schematic diagram of the structure of the rotating lid according to the present invention. [Figure 6] This is a schematic diagram of the grip structure according to the present invention. [Modes for carrying out the invention]
[0014] To achieve the above objectives and effects, the features and functions of preferred embodiments of the present invention will be described in detail with reference to the drawings, referring to the technical means and structure employed in the present invention.
[0015] As shown in Figures 1 to 6, the present invention comprises a grip 1, a rotating lid 2, a fixing block 3, and a brush body 4. The grip 1 has a male screw 13 at its end, and the rotating lid 2 has a female screw 12 inside. The male screw 13 at the end of the grip 1 fits into the female screw inside the rotating lid 2. One end of the fixing block 3 abuts against the grip 1, and the other end protrudes from the rotating lid 2. The brush body 4 comprises a core 5 and brush bristles 6. The core 5 is formed by twisting amorphous alloy wires together, one end of the core 5 is held in place within the fixing block 3, and the brush bristles 6 are connected to the circumferential side of the other end.
[0016] In this embodiment, the grip 1 is L-shaped and made of polyethylene (PE) material. Polyethylene is relatively soft, has a waxy feel, and is relatively lightweight compared to equivalent plastics. When the grip is made of polyethylene, the softness, comfort, pressure resistance, and toughness of the grip are improved. When the consumer grips the grip, it is less likely to break, improving the durability of the interdental brush, and further improving the grip's anti-slip performance. When brushing teeth with the interdental brush, the brush is less likely to slip from the hand. When the grip is L-shaped, there is a certain angle between the brush body and the grip, making it easier to remove dirt and plaque from between teeth.
[0017] In this embodiment, a male screw 13 is provided at one end of the grip 1, and a textured pattern 14 is formed on the outer surface of the other end. The textured pattern on the outer surface of the grip increases the frictional force of the grip surface and further improves the grip's anti-slip performance, making it less likely for the grip to fall from the user's hand to the ground when brushing their teeth, thus preventing damage to the interdental brush. At the same time, the arrangement of the textured pattern improves the user's comfort when gripping the grip.
[0018] In this embodiment, the core portion 5 includes a free end 7 and a fixed end 8 that are connected to each other, the fixed end 8 is held within a fixed block 3, and the brush bristles 6 are wrapped around one side of the free end 7 of the core portion 5 and distributed radially. Since the brush bristles are provided radially distributed at the free end of the brush body, the brush bristles can effectively clean dirt between teeth in all directions.
[0019] The rotating cover 2 has a slope 11 at one end inside and a female thread 12 at the other end that fits the male thread 13 of the grip 1. The fixing block 3 includes two clips arranged symmetrically, and has a through hole 9 at its center for fixing the fixed end 8 of the core 5, and has an inclined surface 10 at one end on its outside that fits the slope 11 at the one end inside the rotating cover 2. Conventional interdental brushes are made by joining the brush body and grip in an injection molding process, and if the brush body breaks during use, the entire interdental brush is discarded. The interdental brush of the present invention overcomes the conventional manufacturing method of interdental brushes, in which the fixed end of the brush body is fastened to the tip of the grip by the fixing block and the rotating cover. With this design, the brush body that breaks during use can be replaced, and the other parts can be reused.
[0020] In this embodiment, the amorphous alloy wire is Zr 49 Cu 45 Al6 amorphous alloy wire, Zr 58 Cu 22 Fe8Al 12 Amorphous alloy wire, Zr 48 Cu 36 Ag8Al8 amorphous alloy wire, Zr 46.3 Cu 43.4 Al 8.3 Nb2 amorphous alloy wire, Zr 62.3 Cu 22.5 Fe 4.9 Al 6.8 Ag 3.5 Amorphous alloy wire, Ti 40 Zr 10 Cu 40-x Pd 10+x (x=0, 2, 4, 6, 8, 10) Amorphous alloy wire, Ti 40 Zr 10Cu 34 Pd 14 Sn2 amorphous alloy wire, Ti 44 Zr 10 Pd 10 Cu 6+x Co 23-x Ta7(x=0,4,8) amorphous alloy wire, Ti 47 Cu 38-x Zr 7.5 Fe 2.5 Sn2Si1Ag2Nb x (x=0, 1, 2) Amorphous alloy wire, Ti 47 Cu 38-x Zr 7.5 Fe 2.5 Sn2Si1Ag2Ta x (x=1, 2, 3, 4) Amorphous alloy wire and Pd 78 Si 16 It contains one of the following types of amorphous alloy wires: Cu6. Such amorphous alloy wires have high strength, good toughness, do not contain elements harmful to the human body, are resistant to breakage during use, and make for a highly durable interdental brush.
[0021] A method for manufacturing a replaceable interdental brush having a core brush body, An amorphous alloy wire is twisted spirally around a central axis to create a core 5, and the brush bristles 6 are implanted radially into the free end 7 of the core 5 using a bristle implantation machine to create the brush body 4. As a result, the brush bristles 6 can effectively clean interdental debris in all directions S1, S2 is formed by injecting injection molding material into a mold and manufacturing a grip 1 using an injection molding machine, with a male screw 13 provided at one end of the grip 1 and a textured pattern 14 formed on the outer surface of the other end. Injection molding material is injected into a mold, and a rotating lid 2 is manufactured by an injection molding machine. One end of the rotating lid 2 is provided with a slope 11, and the other end is provided with a female thread 12 that fits the male thread 13 at one end of the grip 1. An injection molding material is injected into a mold, and a fixing block 3 is manufactured by an injection molding machine. The fixing block 3 includes two clips arranged symmetrically on the left and right sides, each having a through hole 9 in its center for fixing the fixing end 8 of the core portion 5, and an inclined surface 10 on one of its outer ends that conforms to the gradient 11 at one of the inner ends of the rotating cover 2.
[0022] The above are merely preferred embodiments of the present invention and do not limit the technical scope of the present invention in any way. Therefore, any minor modifications, equivalent changes, and improvements made to the above embodiments based on the technical substance of the present invention are all included within the scope of the technical proposal of the present invention. [Explanation of Symbols]
[0023] 1...Grip, 2...Rotating lid, 3...Fixing block, 4...Brush body, 5...Core, 6...Brush bristles, 7...Free end, 8...Fixed end, 9...Through hole, 10...Slope, 11...Inclined surface, 12...Female thread, 13...Male thread, 14...Rubber pattern.
Claims
1. A replaceable interdental brush having a core brush body comprising a grip (1), a rotating lid (2), a fixing block (3), and a brush body (4), A male thread (13) is provided at the end of the grip (1), and a female thread (12) is provided inside the rotating cover (2), and the male thread (13) at the end of the grip (1) fits into the female thread inside the rotating cover (2). One end of the fixed block (3) abuts against the grip (1), and the other end protrudes from the rotating cover (2), The brush body (4) comprises a core (5) and brush bristles (6), the core (5) being formed by twisting amorphous alloy wires together, one end of the core (5) being held within a fixing block (3), and the brush bristles (6) being connected to the circumferential side of the other end. One end of the rotating cover (2) is provided with a slope (11), and the other end is provided with a female thread (12) that fits the male thread (13) of the grip (1). A replaceable interdental brush having a core brush body characterized by the above.
2. A male screw (13) is provided at one end of the grip (1), and a textured pattern (14) is formed on the outer surface of the other end. A replaceable interdental brush having a core brush body as described in feature 1.
3. The core portion (5) includes a free end (7) and a fixed end (8) that are connected to each other, the fixed end (8) is held within a fixed block (3), and the brush bristles (6) are wrapped around one side of the free end (7) of the core portion (5) and distributed radially. A replaceable interdental brush having a core brush body as described in feature 1.
4. The fixing block (3) includes two clips arranged symmetrically on the left and right sides, and has a through hole (9) in its center for fixing the fixing end (8) of the core (5), and has an inclined surface (10) on one of its outer ends that conforms to the slope (11) at one of the inner ends of the rotating cover (2). A replaceable interdental brush having a core brush body as described in feature 3.
5. The amorphous alloy wire contains Zr ４９ Cu ４５ Al ６ The amorphous alloy wire, Zr ５８ Cu ２２ Fe ８ Al １２ The amorphous alloy wire, Zr ４８ Cu ３６ Ag ８ Al ８ The amorphous alloy wire, Zr ４６.３ Cu ４３.４ Al ８.３ Nb ２ The amorphous alloy wire, Zr ６２.３ Cu ２２.５ Fe ４.９ Al ６.８ Ag ３.５ The amorphous alloy wire, Ti ４０ Zr １０ Cu ４０－ｘ Pd １０＋ｘ (x = 0, 2, 4, 6, 8, 10) The amorphous alloy wire, Ti ４０ Zr １０ Cu ３４ Pd １４ Sn ２ The amorphous alloy wire, Ti ４４ Zr １０ Pd １０ Cu ６＋ｘ Co ２３－ｘ Ta ７ (x = 0, 4, 8) The amorphous alloy wire, Ti ４７ Cu ３８-ｘ Zr ７.５ Fe ２.５ Sn ２ Si １ Ag ２ Nb ｘ (x = 0, 1, 2) The amorphous alloy wire, Ti ４７ Cu ３８-ｘ Zr ７.５ Fe ２.５ Sn ２ Si １ Ag ２ Ta ｘ (x = 1, 2, 3, 4) The amorphous alloy wire and Pd ７８ Si １６ Cu ６ Any one of the amorphous alloy wires is included, A replaceable interdental brush having a core brush body as described in feature 2.
6. A method for manufacturing a replaceable interdental brush having a core brush body according to any one of claims 1 to 5, S1 involves twisting an amorphous alloy wire spirally around a central axis to create a core (5), and then using a bristle implanting machine to implant brush bristles (6) radially into the free end (7) of the core (5) to create a brush body (4). In S2, an injection molding material is injected into a mold, and a grip (1) is manufactured by an injection molding machine. A male screw (13) is provided at one end of the grip (1), and a textured pattern (14) is formed on the outer surface of the other end. Injection molding material is injected into a mold, and a rotating lid (2) is manufactured by an injection molding machine. One end of the rotating lid (2) is provided with a slope, and the other end is provided with a female thread (12) that fits the male thread (13) at one end of the grip (1). The process includes injecting injection molding material into a mold and manufacturing a fixing block (3) using an injection molding machine, the fixing block (3) comprising two clips arranged symmetrically on the left and right, a through hole (9) in the center for fixing the fixing end (8) of the core portion (5), and an inclined surface (10) on one of its outer ends that conforms to the gradient (11) at one of the inner ends of the rotating cover (2), S4 A method for manufacturing a replaceable interdental brush having a core brush body characterized by the above.