JP2008302164A - S-shaped toothbrush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that the conventional toothbrushes are formed into a linear shape and have a trouble that bristle tips are hard to reach the back side of the teeth or irregularly arranged back molars. <P>SOLUTION: This toothbrush formed by inplanting a plurality of bristle tufts on an inplanting base is so formed that a bristle cut face formed of the bristle tuft group is formed into a recessed arch shape at the tip part relative to the length direction of the brush, a protruded arch shape at the neck side, and an S-shape in a side view. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a toothbrush, and more particularly to a toothbrush that can efficiently polish normal teeth as well as teeth that are irregularly arranged on the back side of the tooth or the back.

Since the brush shape of the conventional toothbrush is linear as shown in FIG. 8, there is a disadvantage that it is difficult for the tip of the hair to reach the teeth arranged on the back side of the tooth or the back teeth irregularly.
On the other hand, in order to make it easier to remove such dental plaque, a toothbrush (Japanese Utility Model Publication No. 58-14733, etc.) is proposed in which the hair length of the tip of the flocking table is lengthened so that the hair tip can be easily reached. In addition, a toothbrush having a neck portion inclined toward the hair bundle side (Japanese Utility Model Laid-Open No. 58-14732, etc.) has been proposed.
Japanese Utility Model Publication No. 58-14733 Japanese Utility Model Publication No. 58-14732, etc.

As mentioned above, it is difficult to remove the plaque on the back side of the teeth or the back teeth irregularly by simply increasing the hair tip or tilting the neck. was there.
Therefore, an object of the present invention is to provide a toothbrush that can sufficiently remove plaque from normal teeth as well as teeth that are irregularly arranged on the back side or back of the teeth, and that can be efficiently polished.

The toothbrush according to claim 1 of the present invention is a toothbrush in which a plurality of hair bundles 3 are implanted on the flocking tables 5 and 6, and the hair cutting surface formed by the hair bundle group is a tip portion a with respect to the length direction of the toothbrush. The shape is a concave arch shape, the shape on the neck side b is a convex arch shape, and the brush shape is S-shaped in a side view.
According to this shape, the back side of the back tooth and the protruding tooth and the front side of the tooth can be efficiently polished by the S-shaped concave portion. By using it vertically, the back side part of the front teeth can be polished efficiently with the S-shaped concave part. The effect is that the back side of the tooth and the retracted tooth can be polished efficiently with an S-shaped convex part. Further, according to this configuration, it is possible to easily form a hair bundle having the same length as a conventional one on a S-shaped flocking table. It is also possible to easily form the hair by cutting the hair length into an S shape in a side view after the hair bundle of the same length is planted on a conventional straight hair transplant table.
The toothbrush according to claim 2 of the present invention is a toothbrush in which a plurality of hair bundles 3 are implanted on the flocking tables 5 and 6, wherein the flocking surface of the flocking table is flocked on the front flocking table 5 with respect to the length direction of the toothbrush. The surface is characterized by a concave arch shape with respect to the hair bundle side, the flocked surface of the flocking table 6 on the neck side portion being convex with respect to the hair bundle side, and a S-shaped flocked table in side view. . According to this shape, even in a flat hair-cutting surface such as a conventional general toothbrush, the flocked portion is near the tip of the concave portion of the flocked surface of the tip portion or the top of the convex portion of the flocked surface of the neck portion side portion. Since the length of the bundle is reduced, the brush pressure is increased. Therefore, the same effect as that of claim 1 is produced. In addition, by flocking hair bundles of the same length, the shape of the tip portion a of the hair cutting surface formed by the hair bundle group is concave along the flocked surface, and the shape of the neck side b is convex along the flocked surface. Since the S-shaped brush shape can be formed, the same effects as those of the first aspect can be obtained, and the brush pressure can be kept uniform, so that the brush can be polished more efficiently. According to this configuration, it is possible to easily form a hair bundle having the same length as a conventional one on a S-shaped flocking table. Moreover, it can be easily formed by deforming a straight flocking table having a hair bundle having the same length as the conventional one into a S-shape.
The toothbrush according to a third aspect of the present invention is a toothbrush in which a plurality of hair bundles 3 are implanted on the flocking tables 5 and 6, and the hair bundle group a at the tip portion in the length direction is a fan-like shape in a side view in a side view. A toothbrush characterized by a shape in which the bristles b on the neck side portion are spread in the hair tip side in a substantially parallel or fan shape. According to this shape, when the back side of the back tooth, the protruding tooth, or the front side of the tooth is polished with the S-shaped concave portion, the brush tip goes around the tooth and can be polished more efficiently. By using it vertically, the back side of the front teeth can also be polished more efficiently than the wraparound by the S-shaped recess. The back side of the tooth and the retracted tooth have an S-shaped convex part and the tip of the brush spreads, resulting in an effect that the brush can be polished more efficiently between the teeth.
The toothbrush according to claim 4 of the present invention is characterized in that in the above-mentioned toothbrush, the flocking density of the flocking table 6 at the neck portion is higher than the flocking density of the flocking table 5 at the tip. According to the configuration of claim 3, when the hair bundles are evenly implanted on the flocking tables 5 and 6, the density of the hair tips of the hair bundle group a at the tip portion is large, and the hair tips of the hair bundle group b at the neck portion side portion are large. Since the density is reduced, the effect of reducing the difference in the density of the hair tips is produced by implanting more of the hair density of the flocking table 6 on the neck side portion than the flocking density of the flocking table 5 on the front portion. .
The toothbrush according to claim 5 of the present invention is the above-mentioned toothbrush, wherein the width of the flocking table is rounded so that the width of the flocking table 6 at the neck portion is wider than the width of the flocking table 5 at the tip. It is an equilateral triangle. According to this shape, since the tip portion can be made small, there is an effect that it is easy to polish every corner even in a narrow oral cavity.
In the toothbrush according to claim 6 of the present invention, an imaginary line Y connecting the apex portion 1 on the tip side of the concave portion of the cut portion of the tip portion and the apex portion 2 of the convex portion of the cut surface on the neck portion is It is inclined toward the hair tip side with respect to a parallel line X with the axis 7. According to this shape, when brushing the back side of the back tooth or the back side of the front tooth, the tip of the brush becomes easy to reach, and the effect of being able to move the brush at an easy angle is produced.

In the toothbrush of the present invention, the hair cutting surface formed by the hair bundle group has a concave arch shape in the tip portion a of the flocking table with respect to the length direction of the brush. The tip of the tooth can easily reach the back side (FIG. 4), the front surface of the canine that protrudes outward (FIG. 3), and the front tooth surface (FIG. 2) such as the side incisor and the central incisor. Since the shape of the neck side b of the flocking table is a convex arch shape, the hair on the back side of the first premolar and the second premolar (Fig. 5) and on the front side of the first premolar (Fig. 6) inside The tip is easy to enter and easily arrives. Moreover, because the hair lengths are all about the same length, they have sufficient waist and can sufficiently remove hard and stuck plaque. According to the invention, they are lined up irregularly on the back side and back of the teeth. It can polish regular teeth as well as teeth efficiently.

FIG. 1 is a partially enlarged side view showing a flocking base portion of an S-shaped toothbrush according to an embodiment of the present invention.
In FIG. 1, the S-shaped toothbrush includes a neck portion 7, flocking tables 5 and 6, and a hair bundle 3.
The flocking tables 5 and 6 are connected to the tip of the neck 7, and the flocking surface of the flocking table 5 at the tip part is a concave arch shape with respect to the hair tip side, and the flocking surface of the flocking table 6 at the neck part is the hair. The arch shape is convex with respect to the front side, and is formed in an S shape in a side view.
A plurality of hair bundles 3 of a set of many brush hairs are planted on the flocking surfaces of the flocking tables 5 and 6, and the length of each hair bundle is substantially constant. In addition, an uneven curve along the shape of the flocked surfaces of the flocking tables 5 and 6 is formed, and is formed into an S shape in a side view.
In a side view, the hair bundle group a at the tip portion gathers on the hair tip side with respect to the length direction, and the hair bundle group b at the neck portion side portion is approximately parallel or fan-shaped spreading toward the hair tip side.
As for the hair density of the hair bundle, the hair density of the hair bundle group b at the neck portion is higher than that of the front hair bundle group a.
An imaginary line connecting the apex 1 on the tip side of the concave portion of the hair cutting surface of the tip part and the apex 2 of the convex part of the hair cutting surface on the neck side is Y, and a parallel line with the axis of the neck 7 is X. In this case, if the angle formed by X and Y is θ, θ is inclined toward the end of the hair in the range of 1 ° to 25 °.

It is a partial expanded side view which shows the flock base part of the toothbrush of this invention. It is a figure which shows the use condition of a toothbrush in the case of brushing the table | surface of the normal incision and the side incisor. It is a figure which shows the use condition of a toothbrush in the case of brushing the table | surface of the canine which came out outside. It is a figure which shows the use condition of a toothbrush in the case of brushing the back side of a 3rd molar. It is a figure which shows the use condition of a toothbrush in the case of brushing the back of the 1st premolar of a normal tooth arrangement, and a 2nd premolar. It is a figure which shows the use condition of a toothbrush in the case of polishing the table | surface of the 1st molar which entered inside. The whole toothbrush of this invention is shown, (A) is a top view, (B) is the side view. It is a figure which shows a general toothbrush.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Top part of the tip part side of the recessed part of the hair-cut surface of a tip part 2 Top part of the convex part of the hair-cut surface of a neck part 3 Hair bundle 5 Flocking table of a tip part 6 Hair transplant table of a neck part part 7 Toothbrush neck part a tip B Bundles of parts b Bundles of parts on the neck side θ Inclination angle of the brush X Parallel line to the axis of the neck 7 Y The top 1 on the tip side of the recess of the hair cut surface of the tip part and the hair cut surface on the neck side Imaginary line connecting the top 2 of the convex part

Claims (6)

In a toothbrush in which a plurality of hair bundles 3 are implanted on the hair flocks 5 and 6, the hair cutting surface formed by the hair bundle group has a concave arch shape in the tip portion a with respect to the length direction of the toothbrush, and the neck side b A toothbrush characterized by a convex arch shape and a brush shape that is S-shaped in a side view. In the toothbrush in which a plurality of hair bundles 3 are implanted on the hair flocks 5 and 6, the flocking surface of the flocking table is an arch in which the flocking surface of the front flocking table 5 is concave with respect to the hair bundle side in the length direction of the toothbrush. A toothbrush characterized by a flocking table having a arch shape in which the flocking surface of the flocking table 6 in the shape and neck side portion is convex with respect to the hair bundle side and having an S-shape in a side view. In a toothbrush in which a plurality of hair bundles 3 are implanted on the hair flocks 5 and 6, in a side view, the hair bundle group a at the tip portion in the length direction gathers on the hair tip side in a reverse fan shape, and the hair bundle group at the neck portion side portion b is a toothbrush characterized by the shape which spread in the hair tip side substantially parallel or fan shape, respectively. 4. The toothbrush according to claim 3, wherein in the toothbrush, the flocking density of the flocking table 6 on the neck portion is higher than the flocking density of the flocking table 5 on the front portion. In the toothbrush, the horizontal width of the flocking table is a rounded isosceles triangle in which the horizontal width of the flocking table 6 at the neck portion is wider than the horizontal width of the flocking table 5 at the tip. The toothbrush of any one of 1-4. . In the toothbrush, an imaginary line Y connecting the apex 1 on the tip side of the concave portion of the tip portion of the hair-cutting surface and the apex 2 of the convex portion of the hair-cut surface on the neck side is parallel to the axis of the neck portion 7. The toothbrush according to any one of claims 1 to 5, wherein the toothbrush is inclined toward the hair tip side with respect to X.

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