JPH0744412U - Toothbrush with radial brush bristles - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is designed to ensure that the tip of the brush bristles reaches the dent at the boundary between the tooth and the gingiva, so that it adheres to the neck of the tooth that was difficult to remove with a conventional toothbrush. It is an object of the present invention to provide a toothbrush having radial brush bristles capable of effectively removing the plaque that has been formed. [Configuration] The flocked surface of the head portion of the toothbrush handle has a circular shape. A toothbrush having radial brush bristles, which is formed into an arc shape, an elliptical shape, or a polygonal shape, and brush bristles are radially planted and arranged on the flocked surface at an angle in the range of 20 ° to 150 °. It is related.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a radial brush that is designed so that the tips of the brush bristles reach the recessed portion of the boundary between the tooth and the gingiva more reliably by arranging the brush bristles implanted in the head portion of the toothbrush radially. The present invention relates to a toothbrush having bristles.

[0002]

[Prior art]

 Conventionally, the bristling surface of the head portion of the toothbrush is flat, and all the bristles are bristled vertically to the bristling surface and faced in the same direction. Regarding the length of the bristles, it was generally cut to a uniform length, but in order to make it easier for the tips of the bristles to reach the boundaries between the teeth and between the teeth and the gums. Also, toothbrushes that have been devised such as cutting the length of the brush hair into a mountain trough shape or transplanting the brush hair into a tent shape have been known.

[0003]

[Problems to be solved by the device]

 However, in all cases, the brushing surface of the toothbrush head is flat, and all the brush hairs are brushed perpendicularly to the surface and face in the same direction. Therefore, the rolling method and the bath method, which are typical brushing methods, are used. When brushing the teeth with, there was a problem that it was difficult to remove the plaque attached to the neck of the tooth at the boundary between the tooth and the gingiva. That is, when the length of the brush bristles is uniform, only the tips of the brush bristles on the edges of the brush reach the indentation of the boundary between the teeth and the gingiva, and the bristles at the center of the bristles are shaped. As a result, it is difficult to reach the recesses, and as a result, the entire brush bristle surface does not work effectively and it is difficult to obtain a sufficient brushing effect for removing plaque. Further, in this case, the bristle tips on both edges of the brush bristle face are repeatedly subjected to repeated load and deformation, and as a result, the bristle bristle is likely to be deformed such as opening or bending after a short period of use. However, once the hair tips on both edges opened, there was a problem that the hair tips could not reach the boundaries or depressions, and plaque could hardly be removed.

[0004] A toothbrush has been known in which the length of the brush bristles is cut in a mountain-valley shape along the longitudinal direction. In this case, however, the tips of the crests do not easily reach the depressions between the teeth. However, the cut length is uniform in the width direction of the brush bristle surface, that is, the brush bristle surface is flat when viewed from the side end of the toothbrush, so the peak portion at the center of the brush bristle surface. It was difficult to reach the recess between the tooth and the gingiva even at the tip of the hair, and as a result it was difficult to obtain a sufficient brushing effect for removing plaque on the neck. In addition, a toothbrush in which brush hair is planted in a tent shape has been known, but in this case, the tip of the bristles at the center where the bristles are long easily reach the recess between the tooth and the gingiva, but the reverse. In addition, the tips of the hairs on both edges, which have a short bristle length, are hard to reach the recess between the tooth and the gingiva, and as a result, the entire brush bristle surface does not work effectively and it is difficult to obtain a sufficient brushing effect. It was In order to eliminate the drawbacks of the prior art, the present invention has arranged the brush bristles in the head part of the toothbrush radially so that the tips of the brush bristles can easily reach the recessed part of the boundary between the tooth and the gum. It is an object of the present invention to provide a characteristic toothbrush having radial brush bristles that is highly effective in removing plaque adhering to the neck of the tooth.

[0005]

[Means for solving the problem]

 In order to achieve the above-mentioned object, the present invention forms the flocked surface of the head portion of the handle of the toothbrush into an arc shape, an elliptical shape, or a polygonal shape, and the bristles on the flocked surface are in the range of 20 ° to 150 °. The hairs are radially planted at an angle of and arranged. The brush bristles may be attached to the flocked surface of the head part by integrally molding and fixing the bristles at the same time when the handle of the toothbrush is melt-molded, or the flocked surface may be bent into an arc shape by post-processing. However, brush hair may be attached to the divided head portion in advance, and the divided head portion may be integrated by an adhesive, hot melt, heat fusion, or the like by post-processing, or sheet-shaped flocking may be performed in advance. Brush hair is brushed on the surface, and the flocked sheet is glued, hot melt, heat fused, screwed, etc. on the head part of the toothbrush handle formed in an arc shape, an ellipse shape or a polygon shape. It may be attached by post-processing. The brush bristles used in the present invention include nylon resin, polyethylene terephthalate resin, polyester resin and the like, and the toothbrush handle includes polypropylene resin, polyethylene resin, PVC resin, polyurethane resin and the like. However, the present invention is not limited to these.

[0006]

[Action]

 Since the present invention is configured as described above, when brushing teeth by the rolling method or the bath method, which are typical brushing methods, it is difficult to reach a toothbrush with a conventional toothbrush, and a brush is applied to the recessed portion between the tooth and the gum. The entire bristle surface, that is, not only the bristle tips on both edges of the brush bristle surface but also the brush tip at the central portion of the brush bristle surface can be reliably reached. Therefore, it is possible to effectively remove plaque adhering to the cervical part of the recessed part between the tooth and the gingiva, which causes periodontal diseases such as gingival abscess and alveolar pyorrhea, and causes caries. For stubborn plaque, anaerobic purulent bacillus, such as Bacteroides gingivalis, that lives in the plaque by surely scratching the plaque with brush tips It is a toothbrush with excellent and highly effective radial brush bristles that can be exposed to water and suppress proliferation. Also, since the entire brush bristle surface works effectively, not only is the brushing effect high, but only the tips of the brush bristle edges, like the conventional toothbrush, are subjected to repeated load and deformation intensively. Therefore, it is difficult for the bristle tips on both edges to open or bend in a short period of time, and even if the bristle tips on both edges are opened for a long period of time, the bristles in the center of the brush bristles Since the tip easily reaches the boundary or dent, it is a toothbrush with excellent radial brush bristles that can keep the effect of removing plaque higher than conventional toothbrushes.

[0007]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of a bristle implant portion of a toothbrush having radial brush bristles according to an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is an enlarged view showing a state where the brush bristles are radially attached. FIG. 4 is a side view, and FIGS. 4 to 6 are enlarged side views showing other brush bristle mounting states. FIG. 7 is a schematic view showing a usage state of a toothbrush having radial brush bristles according to the present invention, and FIG. 8 is a schematic view showing a usage state of a conventional toothbrush. The flocking surface 5 of the head 4 of the handle 1 of the toothbrush shown in FIGS. 1 and 2 is formed in an arc shape as shown in FIG. The brush bristles 3 are radially flocked / arranged on the flocked surface 5 so that the brush bristle arrangement angle θ is in the range of 20 ° to 150 °, preferably in the range of 30 ° to 120 °. In addition, the shape of the flocked surface 5 is not limited to the above-mentioned arc shape, and an elliptical shape or a polygonal shape as shown in FIG. 6 can sufficiently attain the object of the present invention. You can

As a method of attaching the brush bristles 3, the brush bristles 3 may be radially arranged in advance and set in a molding mold, and integrally molded when the toothbrush is melt-molded. In FIG. As shown in the figure, first, the bristles may be flocked on a flat flocked surface so that they are vertical and in the same direction, and then the flocked surface may be bent into an arc shape so that the bristles become radial by post-processing. As shown in 5, the bristles are preliminarily flocked on the flat bristling sheet 6 in the same direction, and then the bristling sheet 6 is hot-melted on the head base 7 having an arcuate surface. It may be attached by an adhesive, heat fusion, or a screw. The material for the brush bristles according to the present invention is nylon resin, polyethylene terephthalate resin, polyester resin, etc., and the material for the toothbrush handle is polypropylene resin, polyethylene resin, PVC resin, polyurethane resin, etc. However, the thermoplastic resin is not limited to these.

FIG. 7 is a schematic view showing a use state of the toothbrush 12 having radial brush bristles according to the present invention. The tips of the brush bristles 3 arranged in a radial pattern are arcuate, and when brushing the teeth by a typical brushing method, such as the rolling method or the bath method, the entire brush bristle surface, that is, both edges of the brush bristles 3 only. Instead, the tip of the bristles in the central part surely reaches the recessed part of the boundary between the tooth and the gingiva, so the conventional toothbrush 13 as shown in FIG. 8 does not reach the central part of the brush surface and is removed. A toothbrush having radial brush bristles capable of effectively removing the plaque 11 adhered to the tooth neck 9 of the tooth, which was difficult to achieve, was obtained.

[0010]

[Effect of device]

 As described above, in the present invention, the tips of the radially arranged brush bristles are arcuate, and when brushing teeth by the rolling method or the bath method, which are typical brushing methods, the brush bristle surface is Since the entire bristle tip surely reaches the recessed part of the boundary between the tooth and the gingiva, the tooth attached to the neck of the tooth that was difficult to remove because the central part of the brush surface could not reach with the conventional toothbrush. It is a toothbrush with radial brush bristles that can effectively remove dirt.

[Brief description of drawings]

FIG. 1 is a plan view showing a head portion of a toothbrush having radial brush bristles according to an embodiment of the present invention.

FIG. 2 is a front view showing a head portion of a toothbrush having radial brush bristles according to an embodiment of the present invention.

FIG. 3 is an enlarged side view showing a state in which brush bristles of a toothbrush having radial brush bristles according to an embodiment of the present invention are radially attached on an arc-shaped flocking surface.

FIG. 4 is an enlarged side view showing a state in which the brush bristles of the toothbrush according to the embodiment are radially arranged by bending a flat flocked surface.

FIG. 5 is an enlarged side view showing a state where the brush bristles of the toothbrush according to the embodiment are attached to the arc-shaped head base together with the flat bristling sheet.

FIG. 6 is an enlarged side view showing a state in which the brush bristles of the toothbrush according to the embodiment are radially mounted on the polygonal flocked surface.

FIG. 7 is an enlarged schematic view showing a brushing state with a toothbrush having radial brush bristles according to the present invention.

FIG. 8 is a reference schematic diagram showing a brushing state by a conventional toothbrush.

[Explanation of symbols]

1 ... Handle 8 ... Tooth 2 ... Neck 9 ... Tooth neck 3 ... Brush bristles 10 ... Gum 4 ... Head 11 ... Plaque 5 ... Flocking surface 12 ... Radial toothbrush 6 ... Flocking sheet 13 ... Conventional toothbrush 7 ... Head base θ … Brush bristle arrangement angle

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[Procedure amendment]

[Submission date] June 9, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Figure 8

[Correction method] Change

[Correction content]

FIG. 8 is a diagram showing a brushing state by a conventional toothbrush.

Claims (3)

[Scope of utility model registration request] 1. A toothbrush with radial brush bristles, characterized in that the bristles of the toothbrush are arranged radially. 2. The arrangement angle of the brush bristles of the toothbrush is
The toothbrush with radial brush bristles according to claim 1, characterized in that it is in the range of 20 ° to 150 °. 3. The toothbrush with radial brush bristles according to claim 1, wherein the bristling surface of the head portion of the handle of the toothbrush is formed in an arc shape, an elliptical shape, or a polygonal shape.