TWM627152U - Bristle structure of toothbrush - Google Patents

Abstract

A hair-planting structure of a toothbrush is used to cooperate with a brush head for hair-planting. The hair-planting structure includes a plurality of hair-planting grooves, a non-cylindrical oblique channel extending downward from the surface of the brush head, and one end of the inclined channel is located on the surface of the brush head. A top slot hole, the other end is a bottom groove surface inside the brush head, and the area of the bottom groove surface is smaller than the opening area of the top slot hole; a plurality of bristle bundles, each bristle bundle is bent and clamped with a metal sheet, and The metal sheet is used to implant the position of each top slot hole on the brush head into the hair planting groove, so that the bristle bundle can be fixed on the bottom groove surface by the metal sheet, which is suitable for toothbrushes made of natural materials such as wood or bamboo.

Description

The bristle structure of the toothbrush

This work is about a hair-planting structure, especially a hair-planting structure used at the head of a toothbrush.

Brushes are used in a wide range of applications in daily life. Brooms and cleaning brushes of various sizes are common in daily life. They are also used in specialized technical industries, such as machinery manufacturing, panel manufacturing, wafer fabs and other industries. For example, roller brushes, spring brushes, plate brushes, iron brushes and other special brush products for different purposes and styles, and toothbrushes are usually distinguished from the above-mentioned brush products, because toothbrushes are used for personal hygiene cleaning, and will directly interact with the oral cavity. Contact is also based on the above reasons, so that toothbrushes are used by everyone every day and need to be replaced regularly, resulting in a market demand for toothbrushes that is much greater than other brush supplies. It is common in the industry to manufacture high-demand toothbrushes through automated machinery and equipment. mainstream manufacturing.

One of the key points of manufacturing toothbrushes through automated mechanical equipment is how to fix the bristles on the brush surface of the toothbrush. Usually, the bristles are fixed by means of flocking. In the pores, referring to the conventional hair-planting structure shown in Figures 5 and 6, the toothbrush 9 is provided with a plurality of hair-planting pores 92 on the surface of the brush head 91. The pore groove 920 has a vertical inner wall surface, one end of which is an upper opening 921 and the other end is a lower groove surface 922 .

Since the existing toothbrushes usually use materials that can be integrally formed with pores on the bristle surface, but now that the awareness of environmental protection is rising, the use of decomposable or natural materials to replace the existing common materials that are not easily decomposed is gradually recognized by consumers. , also has its market value, but the process of planting hair on the material that cannot be integrally formed with pores must be drilled. For example, the above-mentioned conventional hair-planting structure is often used because of the pulling force of the bristles in the pores. -Off adhesion) is insufficient, resulting in the bristles may be relatively loose or fall off from the self-planted pores, which will not only reduce the cleaning effect of the toothbrush, but also reduce consumer acceptance.

The main purpose of this creation is to provide a bristle-implanting structure that can improve the pull-off adhesion of toothbrush bristles, so as to reduce the problems of bristles falling off or loose bristles.

In order to achieve the above purpose, the hair-planting structure of the toothbrush adopted in this creation includes a plurality of hair-planting grooves, and a non-cylindrical inclined channel is formed extending downward from the surface of the brush head, and one end of the inclined channel is located on the surface of the brush head. a top slot hole, the other end of which is a bottom slot surface inside the brush head, and the area of the bottom slot surface is smaller than the opening area of the top slot hole; a plurality of bristle bundles, each of which is bent and clamped with a metal The bristle bundle is fixed on the bottom groove surface by using the metal sheet corresponding to each of the top slot holes on the brush head and implanted into the bristle-implanting groove.

The inner wall surface of the inclined channel is a continuous inclined surface and is connected between the top groove hole and the bottom groove surface.

The angle between the inner wall surface of the inclined channel and the vertical line ranges from 1 to 20 degrees.

The distance from the top slot hole to the bottom slot surface is between 1.5 and 6 mm.

The diameter of the top slot hole is between 1 and 3 mm.

The shape of the top slot hole is one of circle, triangle, rectangle, square, hexagon, ellipse, and rhombus.

The diameter of the tufts of bristles is in the range of 0.0254 to 0.30 mm.

The material of the brush head is a natural material.

The material of the brush head is one of wood or bamboo.

The hair-implanting groove is formed on the brush head by means of mechanical or laser drilling.

Please refer to Figure 1, which is an exploded schematic diagram showing the application of the bristles structure in the present invention to a toothbrush 1. The toothbrush 1 includes a handle 10 and a brush head 11 connected to the handle 10. The created hair flocking structure flocks the brush head 11 with hair.

A plurality of hair-implanting grooves 12 are provided on the brush head 11 for correspondingly implanting and fixing the bristle bundles 13 . The hair-planting groove 12 extends downward from the surface of the brush head 11 to form a continuous inclined channel 120, and as shown in FIG. 1A, one end of the inclined channel 120 is a top slot 121 located on the surface of the brush head 11, and the other end is a One is the bottom groove surface 122 inside the brush head 11 .

As shown in Figure 2, the opening of the top slot hole 121 and the bottom slot surface 122 are connected by a continuous inclined inner wall surface of the inclined channel 120, and the area of the bottom slot surface 122 of the inclined channel 120 is smaller than that of the top slot. The opening area of the hole 121 makes the inclined channel 120 have a channel structure with a large opening at the top and a small bottom surface at the bottom.

During the hair planting operation, each bristle bundle 13 is respectively bent and clamped with a metal sheet 14 as shown in Fig. 1A, and the metal sheet 14 is used to implant the position of the top slot 121 on the surface of the brush head 11 as shown in Fig. 2. In the hair transplanting groove 12, the bristle bundle 13 is fixed to the bottom groove surface 122 of the hair transplanting groove 12 by the metal sheet 14 as shown in FIG. 3 .

The hair-planting structure in this creation is suitable for toothbrushes 1 made of natural materials such as wood or bamboo. Non-cylindrical hair-planting grooves are processed on the surface of the brush head 11 of the toothbrush 1 by mechanical, laser or other methods. For example, in the inclined channel 120 in the preferred embodiment, the diameter of the opening on the upper surface is larger, and the diameter is smaller as it goes deeper into the inclined channel 120, so the diameter of the bottom groove surface 122 at the deepest point is smaller than The diameter of the top slot hole 121 on the surface of the brush head 11 .

During the hair transplanting process, the metal sheet 14 is implanted into the hair transplant slot 12 together with the bristle bundle 13 bent on it under force. When passing through the top slot hole 121 on the surface of the brush head 11, the metal sheet 14 is as shown in Fig. 2A. As shown, it is cut in the deep direction of the inclined channel 120 and embedded in the surface of the brush head 11 near the top slot hole 121. As the metal sheet 14 is stressed, an incision hole 141 is formed to fix the metal sheet 14 together with the bristle bundle 13. in the flocking slot 12.

The metal sheet 14 is forced to cut down into the depth of the inclined channel 120 until the bristle bundle 13 contacts the bottom groove surface 122 of the hair-planting groove 12. During the cutting process, the diameter of the inclined channel 120 decreases as it goes deeper, which is used to remove the bristles. The bundle 13 is gradually converged and fixed on the bottom groove surface 122, and because the diameter of the inclined channel 120 on the bottom groove surface 122 is relatively small, the metal sheet 14 can relatively cut into and contact more of the inner area of the brush head 11, so that the The metal sheet 14 can be more stably fixed inside the brush head 11 to increase the pull-off adhesion of the bristle bundle 13 .

The top slot hole 121 is circular in the figure, and since the continuous inner wall surface of the oblique channel 120 is inclined, the inner shape of the oblique channel is not cylindrical. However, the top slot hole 121 is not limited to a circle, and can also be a triangle, a rectangle, a square, a hexagon, an ellipse, a rhombus, etc., see Figures 4A to 4E.

Referring to Figures 3 and 4, the angle θ between the inner wall surface of the oblique channel 120 of the hair planting groove 12 and the vertical line is in the range of 1 to 20 degrees, and the top slot hole 121 of the oblique channel 120 is between the bottom groove surface 122 The distance D is between 1.5 and 6 mm.

The diameter of the top slot 121 located on the surface of the brush head 11 is between 1 and 3 mm, and the diameter of each tuft of bristles 13 is between 0.0254 and 0.30 mm.

After the actual measurement of the hair planting operation, the cylindrical hair planting groove in the conventional technology is used, with bristles with a diameter of 0.1778 mm, a depth of 3.5 mm, and a surface diameter of 1.7 mm, the measured pulling force is between 10-25 Newtons (N). However, using the non-cylindrical hair-planting groove 12 in this creation, the measured pulling force is between 15-30 Newtons (N), which can improve the pulling force of the bristles and reduce the looseness of the bristles or the self-toothbrush. The problem of peeling off the brush surface.

The above only illustrates the best and possible implementation of this creation, and is not intended to limit the patent scope of this creation. Any simple replacement or equal replacement of constituent elements and means according to the technical means of this creation shall belong to this invention. The scope of the scope of the patent application for the creation.

1: toothbrush 10: Brush handle 11: Brush head 12: flocking slot 120: Chute channel 121: Top slot hole 122: Bottom groove surface 13: Bristle bundle 14: Metal sheet 141: Cut into the hole 9: toothbrush 91: brush head 92: Plant pores 920: Pore groove 921: upper opening 922: Lower groove surface 93: Bristles 94: Flat wire pieces θ: included angle D: distance

Figure 1 is an exploded schematic diagram showing a preferred embodiment of the present invention; FIG. 1A is a partially enlarged schematic diagram showing the embodiment of FIG. 1; Figure 2 shows a schematic diagram of the hair planting step (1) of the preferred embodiment of the present invention; Figure 3 is a schematic diagram (2) showing the hair planting step of the preferred embodiment of the present invention; Figures 4A to 4E are schematic diagrams showing the structure and appearance of the hair-implanting groove in the preferred embodiment of the present invention; Fig. 5 is a schematic diagram (1) showing the hair planting steps of the conventional hair planting structure; Fig. 6 is a schematic diagram (2) showing the hair implantation steps of the conventional hair implantation structure.

1: toothbrush

10: Brush handle

11: Brush head

12: flocking slot

13: Bristle bundle

14: Metal sheet

Claims (10)

A bristle-implanting structure of a toothbrush is used for cooperating with a brush head for tufting, the bristle-implanting structure comprising: a plurality of hair-planting grooves, a non-cylindrical oblique channel extending downward from the surface of the brush head, and one end of the oblique channel is located at A top slot hole on the surface of the brush head, and the other end is a bottom slot surface inside the brush head, and the area of the bottom slot surface is smaller than the opening area of the top slot hole; a plurality of bristle bundles, each of which is bent The folder is provided with a metal sheet, and the position of the metal sheet corresponding to each of the top slot holes on the brush head is implanted into the hair-implanting groove, so that the bristle bundle is fixed on the bottom groove surface by the metal sheet. The hair planting structure of a toothbrush according to claim 1, wherein the inner wall surface of the inclined channel is a continuous inclined surface and is connected between the top groove hole and the bottom groove surface. The hair planting structure of a toothbrush according to claim 1, wherein the angle between the inner wall surface of the inclined channel and the vertical line ranges from 1 to 20 degrees. The hair-implanting structure of a toothbrush according to claim 1, wherein the distance from the top slot hole to the bottom slot surface is between 1.5 and 6 mm. The hair-implanting structure of the toothbrush according to claim 1, wherein the diameter of the top slot hole is between 1 and 3 mm. The hair planting structure of the toothbrush according to claim 1, wherein the shape of the top slot hole is one of a circle, a triangle, a rectangle, a square, a hexagon, an ellipse, and a rhomboid. The bristle-implanting structure of a toothbrush according to claim 1, wherein the diameter of each tuft of bristles ranges from 0.0254 to 0.30 mm. The bristle-implanting structure of the toothbrush according to claim 1, wherein the material of the brush head is a natural material. The hair-implanting structure of the toothbrush according to claim 1, wherein the material of the brush head is one of wood or bamboo. The hair-implantation structure of a toothbrush according to claim 1, wherein the hair-implantation groove is formed in the brush head by means of mechanical or laser drilling.

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