JPH0657231U - toothbrush - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a toothbrush that can effectively clean the occlusal surface of molars and can also be used for brushing teeth by the scrub method. A brush 12 is flocked on a flocked surface 11a of a head 11 so that an upper part thereof forms convex portions 16 which are sharpened on both sides in the width direction of the flocked surface 11a, and the occlusal surface of a molar can be effectively cleaned. It was constructed so that it can be used for brushing teeth by the scrub method.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a toothbrush that can effectively clean the interproximal surface, the cervical part, and the occlusal surface of a molar, and can also be used for brushing teeth by the scrub method.

[0002]

[Prior art]

 As is well known, a toothbrush forms a bristle surface on a head integrated with a handle, and a bristle is brushed on this bristle surface. In such a toothbrush, a brush is usually cut into equal lengths and bundled into a plurality of hair bundles each having a diameter of about 1.6 mm to 2.0 mm, and the hair bundles are arranged at equal intervals on the hair transplant surface. .

[0003]

[Problems to be solved by the device]

 However, the above-mentioned conventional toothbrush has a problem that the occlusal surface of the posterior tooth, which has large irregularities, cannot be effectively cleaned because the bristle lengths of the hair bundles are not the same. In recent years, the scrubbing method has been recommended as a toothbrushing method, but the toothbrush with the above-mentioned bristles arranged at equal intervals is not suitable for the scrubbing method, and there is a problem that the tooth neck cannot be effectively cleaned. there were. The present invention has been made in view of the above problems, and an object thereof is to provide a toothbrush that is suitable for brushing teeth by the scrub method and that can effectively clean the occlusal surfaces of the neck and molars. And

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a toothbrush in which a head has a substantially rectangular bristle-implanted surface, and a brush is planted on this bristle-implanted surface. At the same time, this flock was formed so that the upper part thereof forms sharp convex parts on both sides in the flock surface width direction.

[0005]

[Action]

 In the toothbrush according to the present invention, sharp convex parts are formed on both sides in the width direction of the bristle surface on the upper part of the brush, and the concave part is recessed in the middle part, so that it is possible to effectively clean the occlusal surface of the posterior teeth having a complicated shape. it can. Even when brushing the teeth by the scrub method, the sharp protrusions spread in the width direction, and the spread sharp protrusions can be inserted into the root of the tooth for cleaning, and the tooth neck can be effectively cleaned. You can

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 4 show a toothbrush according to an embodiment of the present invention, FIG. 1 is a front view of a main part, FIG. 2 is a side view of the main part, and FIG. FIG. 4 is a schematic diagram, and FIG. 4 is a schematic diagram for explaining a usage state by the scrub method.

In the figure, reference numeral 11 denotes a head, which is not shown, but the head 11 is integrally formed with a neck portion, a handle and the like by resin injection molding or the like. The head 11 has a substantially rectangular shaped bristling surface 11a formed on one side thereof, and a plurality of (10 in this embodiment) brush bristles 13 are divided on the bristling surface 11a to be bristled.

Each of the brush bundles 13 has a convex portion 16 formed on both sides in the vertical direction of the upper bristle surface 11a. These protrusions 16 are sharpened at a predetermined angle in a side view (Fig. 1) and a front view (Fig. 2), and the protrusions 16 are two-dimensional as a whole of the 10 brush bundles 13, that is, cells. It is arranged in the shape of a sawtooth.

In the toothbrush of this embodiment, as shown in FIG. 3, the convex portions 16 of each brush bundle 13 form saw-tooth-shaped irregularities as a whole, and the convex portions 16 occlude molar teeth T. Can clean recesses on the surface. Therefore, the recessed occlusal surface of the molar T can be effectively cleaned. In particular, in this embodiment, since the convex portion 16 is formed on the widthwise inner side of the brush bundle 13 and has a sawtooth shape as a whole, the tip of the brush 12 uniformly contacts the tooth surface, and not only the occlusal surface of the molar T The groove can be effectively cleaned.

Further, the toothbrush of this embodiment has a pyramid shape in which the tip of the convex portion 16 is sharpened. Therefore, as shown in FIG. 4, when brushing teeth by the scrubbing method, when the brush 12 is applied to the tooth surface, the convex portion 16 located on the outer side in the width direction spreads, and the tooth neck can also be effectively cleaned. .

The toothbrush is manufactured as follows. First, the brushes 12 having a uniform length are bundled in a brush bundle (13), and the base ends of the bundled brushes 12 are heat-melted and welded, and the brush bundle 13 in which the base ends of the brushes 12 are welded To form.

Subsequently, this bundle of brushes 13 is fixed to the transplanted surface 11a of the head 11 by welding or insert molding. At this time, as described in Japanese Patent Laid-Open No. 60-241404, it is preferable to heat the fusing end portion of each brush bundle 13 and the flocked surface 11a of the head 11 in a molten state, and in the case of insert molding. Is preferably carried out by the method described in JP-A-61-268208 or JP-A-2-503150.

5 and 6 show a toothbrush according to another embodiment of the present invention. Note that, in the following, the same parts as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. In this embodiment, the brushes 12 are not bundled in a brush bundle, in other words, they are planted on the bristle surface 11a of the head 11 as one brush bundle. The brush 12 thus implanted has a plurality of sharpened convex portions 16 similar to those in the above-described embodiment, that is, sharpened convex portions 16 located on both sides in the width direction of the bristle surface 11a. A mountain-shaped convex portion 16 located at the center in the width direction is formed.

Also in this embodiment, as in the above-mentioned embodiments, the occlusal surface of the molar can be effectively cleaned, and the tooth neck can be effectively cleaned by brushing the teeth by the scrub method. be able to. This toothbrush is also manufactured by bundling and fusing the brushes 12 and then fixing the bunched brushes 12 to the flocked surface 11a by welding or the like, as in the above-described embodiment.

In the above-mentioned embodiment, the convex portion 16 is formed in a triangular pyramid shape, but if the tip is sharpened, it may be formed in a quadrangular pyramid shape or a conical shape, and the angle thereof may be formed. Can also be set arbitrarily. The angle of the tip of the convex portion 16 is preferably set to an acute angle in consideration of the cleanability of the groove. Further, in the above-described embodiment, about 15 convex portions 16 are formed, but the number of the convex portions 16 can be arbitrarily determined.

[0016]

[Effect of device]

 As described above, according to the toothbrush according to the present invention, the brush is applied to the flocking surface of the head so that the tips form sharp protrusions on both sides in the width direction of the flocking surface. It is possible to effectively clean the groove on the occlusal surface, and it is also possible to effectively clean the tooth neck by the scrub method.

[Brief description of drawings]

FIG. 1 is a side view of an essential part of a toothbrush according to an embodiment of the present invention.

FIG. 2 is a front view of a main part of the toothbrush.

FIG. 3 is a schematic diagram for explaining a usage state of the toothbrush.

FIG. 4 is a schematic diagram for explaining another usage state of the toothbrush.

FIG. 5 is a side view of a main part of a toothbrush according to another embodiment of the present invention.

FIG. 6 is a front view of a main part of the toothbrush.

[Explanation of symbols]

 11 Head 11a Bristled surface 12 Brush 13 Brush bundle 16 Convex part T Molar

Claims (1)

[Scope of utility model registration request] 1. A head having a substantially rectangular flocked surface is formed,
In a toothbrush in which a brush is brushed on the flocked surface, the bristles are flocked on the flocked surface of the head at a substantially uniform flocked density, and the flocked portion has a sharp convex portion on both sides in the flocked surface width direction. A toothbrush characterized by being molded.