Interdental brush

Abstract

An interdental brush comprises an interdental brush rod and a grab handle, the interdental brush rod is provided with a middle shaft and a combination part, a plurality of first brush hair groups and a plurality of second brush hair groups are axially arranged on the surface of the middle shaft in a staggered mode, each first brush hair group is provided with two first brush hair, each second brush hair group is provided with two second brush hair, and each second brush hair group is provided with two second brush hair. And each first brush hair is connected with the adjacent second brush hair to form a scraping plate. The grab handle is connected with the combination part, and the contact area with teeth can be increased through the scraper blade, so that the cleaning effect is enhanced.

Description

Technical Field

[0001] The present invention relates to a brush, and more particularly to an interdental brush. Background Art

[0002] Conventional interdental brushes can be roughly divided into two types: fine bristle type and soft rubber bristle type. The fine bristle type interdental brush has a relatively poor cleaning ability due to its relatively fine and soft bristles.

[0003] Another type of interdental brush with fine bristles uses metal bristles, which can cause bleeding and damage the gums if you use it with even a little force.

[0004] The soft-bristle type is usually made of silicone or rubber material, and has a larger contact area than the fine-bristle type. For example, as shown in the U.S. patent No. US20180263741A1, the patent discloses an interdental cleaning tool, equipped with a base and a cleaning component, the base has a shaft and a handle, and the cleaning component is radially provided with many conical bristles on the surface of the shaft.

[0005] The conventional technology disclosed in the above patent uses many conical bristles to clean between teeth. Each independent conical bristle will be pushed and bent when brushing the tooth surface. When passing through the tooth surface, the conical bristle has only a linear contact with the tooth. The contact area is too small and the cleaning effect is poor. In addition, each conical bristle stands independently without support and has insufficient strength. Summary of the invention

[0006] The object of the present invention is to provide an interdental brush which can enhance the cleaning effect.

[0007] Another object of the present invention is to provide an interdental brush which is combined with a dental floss stick to achieve a two-in-one effect.

[0008] Another object of the present invention is to provide an interdental brush that does not damage the gums.

[0009] In addition, the present invention can: (1) improve the strength of the scraper to improve the cleaning effect; (2) clean the teeth on both sides of the same tooth gap at the same time; and (3) easily penetrate deep into the tooth gap.

[0010] To achieve the above and other invention purposes, an embodiment of the present invention provides an interdental brush, characterized in that it includes: an interdental brush rod, the interdental brush rod has a central axis and a joint portion, the central axis surface has a plurality of first bristle groups and a plurality of second bristle groups axially staggered, the plurality of first bristle groups and the plurality of second bristle groups are arranged perpendicular to each other, each first bristle group has two first bristles, and each second bristle group has two second bristles; a handle connected to the joint portion; and a plurality of scrapers, each scraper is connected and supported by each first bristle and each adjacent second bristle, and each scraper also supports each first bristle and each adjacent second bristle, wherein, on a horizontal cross section of the central axis, the first bristles form a Y axis, the second bristles form an X axis, a coordinate system is formed on the horizontal cross section through the X axis and the Y axis, each scraper is arranged in pairs in opposite quadrants, and the scraper setting range occupies 50% of the circumference of the central axis.

[0011] In one embodiment, the scraper is disposed in the second quadrant and the fourth quadrant, or a first quadrant (71) and a third quadrant (73) on the horizontal cross section of the central axis.

[0012] In one embodiment, the length of the connection between the scraper and the first bristles is 40-60% of the height of the first bristles.

[0013] In one embodiment, the handle is provided with a handle extension axis, and the middle axis covers the handle extension axis.

[0014] In one embodiment, the handle is made of plastic material, and the interdental brush rod is made of silicone or rubber material to cover the handle extension shaft.

[0015] In one embodiment, the connecting portion is semi-spherical.

[0016] In one embodiment, the widths of the plurality of first bristle groups and the plurality of second bristle groups gradually decrease from one end of the connecting portion to the other end.

[0017] In one embodiment, the widths of the first bristle groups and the second bristle groups taper from 3 mm to 2 mm.

[0018] In one embodiment, the distance between adjacent first bristle groups or adjacent second bristle groups is 1 mm, and in particular, the distance between adjacent first bristle groups and the distance between adjacent second bristle groups are 1 mm.

[0019] In one embodiment, the handle is connected to a dental floss pick.

[0020] In one embodiment, the dental floss holder includes a first support rod, a second support rod, and a dental floss connected between the first support rod and the second support rod.

[0021] In one embodiment, the handle extends from the first support rod of the dental floss pick, and the handle and the dental floss pick are made of the same material.

[0022] In one embodiment, each of the first bristles and the adjacent second bristles disposed perpendicularly to each other are arranged alternately along the central axis in a high and low direction.

[0023] In one embodiment, the scraper has a slope relative to the radial section of the central axis.

[0024] In one embodiment, the handle is provided with a breaking portion having a double-sided recess or a double-sided recess structure.

[0025] In one embodiment, the handle has a protrusion to form a tongue scraping portion.

[0026] In one embodiment, the handle has a depression in front of the protrusion, which is lower than the surface of the handle, and the protrusion and the depression together form the tongue scraping part.

[0027] In one embodiment, the handle is provided with a trademark portion recessed in the surface of the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional diagram of an interdental brush according to an embodiment of the present invention.

[0029] Figure 2 2 is a side view of an interdental brush according to an embodiment of the present invention.

[0030] Figure 3 The interdental brush of the embodiment of the present invention Figure 2 AA direction cross-sectional view.

[0031] Figure 4 It is a partial enlarged view of the interdental brush rod of the interdental brush according to the embodiment of the present invention.

[0032] Figure 5 It is a partially enlarged stereoscopic view of the interdental brush according to an embodiment of the present invention.

[0033] Figure 6 The interdental brush of the embodiment of the present invention Figure 2 A partial enlarged view of the interdental brush rod.

[0034] Figure 7 It is a side view of an interdental brush according to another embodiment of the present application.

[0035] Figure 8It is a partial stereoscopic view of an interdental brush according to another embodiment of the present application.

[0036] Fig. 9 It is an interdental brush according to another embodiment of the present application.

[0037] Explanation of symbols:

[0038] 10 Interdental brush holder

[0039] 11 Center axis

[0040] 12 Joint

[0041] 13 First Brush Set

[0042] 131 one brush

[0043] 14 Second bristle group

[0044] 141 Second Brush

[0045] 15 Scraper

[0046] 20 Handle

[0047] 21 Handle extension shaft

[0048] 30 dental floss sticks

[0049] 31 First support rod

[0050] 32 Second support rod

[0051] 33 Dental Floss

[0052] 40 fracture

[0053] 50 Tongue scraping

[0054] 51 Scraper

[0055] 52 Depression

[0056] 60 Trademark Department

[0057] 71 Quadrant 1

[0058] 72 Second Quadrant

[0059] 73 Third Quadrant

[0060] 74 Quadrant 4

[0061] B. Height of first bristle

[0062] C connection length

[0063] D Width of bristle group

[0064] EMaximum Width

[0065] FMinimum width

[0066] G Brush group spacing

[0067] XX axis

[0068] YY Axis DETAILED DESCRIPTION

[0069] Figure 1 is a three-dimensional diagram of an interdental brush according to an embodiment of the present invention, Figure 2 is a side view of an interdental brush according to an embodiment of the present invention, Figure 3 The interdental brush of the embodiment of the present invention Figure 2 AA direction cross-sectional view, Figure 4 is a partial enlarged view of the interdental brush rod of the interdental brush of the embodiment of the present invention, Figure 5 This is a partially enlarged stereoscopic view of an interdental brush according to an embodiment of the present invention. Figures 1 to 5 The present invention can be clearly understood from different angles and cross-sectional views. An interdental brush of a preferred embodiment of the present invention comprises at least an interdental brush rod (10) and a handle (20).

[0070] According to the illustrations in the above drawings, the interdental brush of the present embodiment is characterized in that it comprises: an interdental brush rod (10), the interdental brush rod (10) having a central axis (11) and a joint portion (12), a plurality of first bristle groups (13) and a plurality of second bristle groups (14) being axially staggeredly arranged on the surface of the central axis (11), the plurality of first bristle groups (13) and the plurality of second bristle groups (14) being arranged perpendicular to each other, each first bristle group (13) having two first bristles (131), and each second bristle group (14) having two second bristles (141); a handle (20) connected to the joint portion (12); and a plurality of scrapers ( 15), each scraper (15) is connected and supported by each first bristle (131) and each adjacent second bristle (141), and each scraper (15) also supports each first bristle (131) and each adjacent second bristle (141), wherein, on a horizontal section of the central axis (11), the first bristles (131) form a Y-axis, and the second bristles (141) form an X-axis, and a coordinate system is formed on the horizontal section through the X-axis and the Y-axis, and each scraper (15) is arranged in pairs in opposite quadrants, and the setting range of the scraper (15) occupies 50% of the circumference of the central axis (11).

[0071] The detailed description is as follows. The interdental brush rod (10) comprises the central axis (11) and the joint portion (12). A plurality of first bristle groups (13) and a plurality of second bristle groups (14) are arranged axially and staggered on the surface of the central axis (11). The first bristle group (13) comprises two first bristles (131), and the second bristle group (14) comprises two second bristles (141). Each first bristle (131) is connected to an adjacent second bristle (141) to form the scraper (15).

[0072] The handle (20) is connected to the joint (12). The handle (20) is for fingers to grasp, so that the interdental brush can be used conveniently. The handle (20) is preferably formed in a flat shape for easy grasping.

[0073] By setting the scraper (15), the scraper (15) can contact the teeth to increase the cleaning area and strengthen the cleaning effect. By setting the scraper (15), the scraper (15) can simultaneously help support the first bristles (131) and the second bristles (141), so that the first bristles (131) and the second bristles (141) are straighter and less likely to be crushed, and the friction with the teeth can be increased to improve the cleaning effect.

[0074] Preferably, the connecting portion (12) is in a semi-spherical shape so that the connecting portion (12) will not damage the gums when it hits the gums.

[0075] Preferably, the handle (20) can also be connected to a dental floss stick (30), and the interdental brush combined with the dental floss stick (30) has a two-in-one effect.

[0076] The dental floss stick (30) comprises a first support rod (31), a second support rod (32) and dental floss (33) connected between the first support rod (31) and the second support rod (32).

[0077] The handle (20) extends from the first support rod (31) of the dental floss stick (30), and the handle (20) and the dental floss stick (30) are made of the same material.

[0078] Reference Figure 3 Preferably, the handle (20) may be provided with a handle extension shaft (21), and the central shaft (11) covers the handle extension shaft (21), so that the interdental brush rod (10) has better rigidity. The handle extension shaft (21) and the handle (20) are integrally injection-molded and made of the same material, preferably polystyrene, polyethylene or other plastics, and the interdental brush rod (10) is preferably made of silicone or TPE (Thermoplastic Elastomer) or TPR (Themoplastic rubber) or other materials that are softer than plastics.

[0079] Preferably, the handle (20) is made of plastic material, and the interdental brush rod (10) is made of silicone or rubber material to cover the handle extension shaft (21), so that the interdental brush rod (10) has a soft surface material and better rigidity.

[0080] like Figure 3 As shown, the plurality of first bristle groups (13) and the plurality of second bristle groups (14) are arranged perpendicular to each other, forming an X-shape visually in the axial direction, so that the scrapers (15) are symmetrically and evenly arranged on both sides of the central axis (11), so that the circumference of the central axis (11) where the scrapers (15) are arranged and the circumference where the scrapers (15) are not arranged account for 50% each, so that when using the interdental brush, the teeth on both sides of the tooth gap can be cleaned simultaneously.

[0081] In other words, on a horizontal section of the central axis (11), the first bristles (131) form a Y-axis, the second bristles (141) form an X-axis, and a coordinate system is formed on the horizontal section through the X-axis and the Y-axis. Each scraper (15) is arranged in pairs in opposite quadrants, and the setting range of the scraper (15) occupies approximately 50% of the circumference of the central axis (11).

[0082] In this way, each scraper (15) is connected to and supported by each first bristle (131) and each adjacent second bristle (141), and at the same time, each scraper (15) also supports each first bristle (131) and each adjacent second bristle (141).

[0083] like Figure 3 Indicates direction, wherein the first bristles (131) form a Y axis, the second bristles (141) form an X axis, and form a virtual rectangular coordinate system, including a first quadrant (71), a second quadrant (72), a third quadrant (73), and a fourth quadrant (74). As shown in the figure, the scraper (15) is arranged in the second quadrant (72) and the fourth quadrant (74) on the horizontal section of the central axis (11). In an embodiment not shown, the scraper (15) can also be arranged in the first quadrant (71) and the third quadrant (73) on the horizontal section of the central axis (11).

[0084] By such a design, the present embodiment can: (1) improve the strength of the scraper to improve the cleaning effect through the mutual support of the first bristles (131), the second bristles (141) and the scraper (15); (2) set the scraper (15) in opposite quadrants to simultaneously clean the teeth on both sides of the same tooth gap; (3) and because the setting range of the scraper (15) only occupies 50% of the circumference of the central axis (11), the present application can easily penetrate deep into the tooth gap through the unoccupied part.

[0085] Preferably, the connection length (C) between the scraper (15) and the first bristles (131) is 40-60% of the height (B) of the first bristles, thereby enabling the scraper (15) to contact the tooth surface to enhance the scraping ability, and also enabling the ends of the first bristles (131) and the second bristles (141) to protrude from the scraper (15), so as to penetrate into the gum crevice to clean deep into the tooth root.

[0086] In principle, the first bristles (131) and the second bristles (141) of the same group have the same length. Therefore, it can be understood that the connection length between the scraper (15) and the second bristles (141) is also 40 to 60% of the height of the second bristles (141).

[0087] More preferably, the widths of the plurality of first bristle groups (13) and the plurality of second bristle groups (14) gradually decrease from one end of the connecting portion (12) toward the other end, thereby enabling the interdental brush to easily extend into the gaps between teeth.

[0088] Please continue to refer to Figure 3 The bristle group width (C) in the figure indicates the distance between the ends of the two first bristles (131) of the first bristle group (13) closest to the joint (12). Figure 4 and Figure 5 The widths of the plurality of first bristle groups (13) and the plurality of second bristle groups (14) gradually decrease from one end of the joint (12) toward the other end. Thus, the tip of the interdental brush is thinner and can easily be inserted into the gap between teeth. The size of the gap between teeth enables the first bristle group (13) and the second bristle group (14) of appropriate length to brush the teeth on both sides of the gap between teeth. In addition, the scraper (15) can scrape across the tooth surface in a surface contact manner, and the tips of the first bristles (131) and the second bristles (141) can also penetrate into the gum gap for deep cleaning.

[0089] Please refer to Figure 6 , Figure 6 The interdental brush of the embodiment of the present invention Figure 2 Preferably, the maximum width (E) of the plurality of first bristle groups (13) and the plurality of second bristle groups (14) tapers from 3 mm to a minimum width (F) of 2 mm, thereby being suitable for most of the interdental widths.

[0090] The distance (G) between adjacent bristle groups is preferably 1 mm. For example, the distance between two adjacent first bristle groups (13) is 1 mm, and the distance between two adjacent second bristle groups (14) is also 1 mm. Such a setting has a good cleaning effect.

[0091] Figure 7 It is a side view of an interdental brush according to another embodiment of the present application. Figure 8 It is a partial stereoscopic view of an interdental brush according to another embodiment of the present application. Fig. 9 This is another embodiment of the interdental brush of the present application. Please refer to Figure 7 to Figure 9 , another embodiment of the present case is described below.

[0092] Preferably, the handle (20) may be provided with a breaking portion (40). The breaking portion (40) is a double-sided concave structure or a double-sided concave structure, so that the user can break it with less effort. After breaking, the interdental brush rod (10) and the dental floss stick (30) of this embodiment can be used independently, such as Figure 8 , Fig. 9 shown.

[0093] In addition, the handle (20) may be provided with a tongue scraping portion (50). The tongue scraping portion (50) may be a structure protruding from the surface of the handle (20) to form a protrusion (51) for the user to scrape the tongue coating. In addition, the tongue scraping portion (50) may also be provided with a depression (52) in advance in front of the protruding scraper (51) to increase the height of the scraper (51) and improve the effect of scraping the tongue coating. In other words, the protrusion (51) and the depression (52) together form the tongue scraping portion (50).

[0094] Finally, the handle (20) may be provided with a trademark portion (60). The trademark portion (60) may be a structure recessed in the surface of the handle (20) for the user to print and highlight the trademark.

Claims

1. An interdental brush, characterized in that: Include: An interdental brush rod (10), the interdental brush rod (10) comprising a central axis (11) and a joint portion (12), a plurality of first bristle groups (13) and a plurality of second bristle groups (14) being axially staggeredly arranged on the surface of the central axis (11), the plurality of first bristle groups (13) and the plurality of second bristle groups (14) being arranged perpendicular to each other, each first bristle group (13) comprising two first bristles (131), and each second bristle group (14) comprising two second bristles (141); a handle (20) connected to the connecting portion (12); and A plurality of scrapers (15), each scraper (15) is connected to and supported by each first bristle (131) and each adjacent second bristle (141), and each scraper (15) also supports each first bristle (131) and each adjacent second bristle (141), Wherein, on a horizontal section of the central axis (11), the first bristles (131) form a Y-axis, and the second bristles (141) form an X-axis, and a coordinate system is formed on the horizontal section through the X-axis and the Y-axis, and each scraper (15) is arranged in pairs in opposite quadrants, and the setting range of the scraper (15) occupies 50% of the circumference of the central axis (11).

2. The interdental brush according to claim 1, wherein: The scraper (15) is arranged in a second quadrant (72) and a fourth quadrant (74), or a first quadrant (71) and a third quadrant (73) on the horizontal cross section of the central axis (11).

3. The interdental brush according to claim 1, wherein: The length of the connection between the scraper (15) and the first bristles (131) is 40 to 60% of the height of the first bristles (131).

4. The interdental brush according to claim 1, wherein: The handle (20) is provided with a handle extension shaft (21), the central shaft (11) covers the handle extension shaft (21), the handle (20) is made of plastic material, and the interdental brush rod (10) is made of silicone or rubber material covering the handle extension shaft (21).

5. The interdental brush according to claim 4, wherein: The connecting portion (12) is semi-spherical.

6. The interdental brush according to claim 1, wherein: The widths of the plurality of first bristle groups (13) and the plurality of second bristle groups (14) gradually decrease from one end of the connecting portion (12) toward the other end.

7. The interdental brush according to claim 6, wherein: The maximum width of the plurality of first bristle groups (13) and the plurality of second bristle groups (14) gradually decreases from 3 mm to a minimum width of 2 mm.

8. The interdental brush according to claim 1, wherein: The spacing between adjacent first bristle groups (13) and the spacing between adjacent second bristle groups (14) are 1 mm.

9. The interdental brush according to claim 1, wherein: The handle (20) is connected to a dental floss stick (30), and the dental floss stick (30) comprises a first support rod (31), a second support rod (32), and a dental floss (33) connected between the first support rod (31) and the second support rod (32).

10. The interdental brush according to claim 9, wherein: The handle (20) extends from the first support rod (31) of the dental floss stick (30), and the handle (20) and the dental floss stick (30) are made of the same material.

11. The interdental brush according to claim 1, wherein: The first bristles (131) and the adjacent second bristles (141) arranged perpendicularly to each other are arranged alternately along the axial direction of the central axis (11), one high and one low. The scraper (15) has a slope in a radial section relative to the central axis (11).

12. The interdental brush according to claim 1, wherein the handle (20) is provided with a breaking portion (40) having a double-sided recess or a double-sided recess structure.

13. The interdental brush according to claim 1, wherein the handle (20) has a protrusion (51) to form a tongue scraping portion (50).

14. The interdental brush according to claim 13, wherein the handle (20) has a depression (52) in front of the protrusion (51), which is lower than the surface of the handle (20), and the protrusion (51) and the depression (52) together form the tongue scraping portion (50).

15. The interdental brush according to claim 1, wherein the handle (20) is provided with a trademark portion (60) recessed in the surface of the handle (20).

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