JP2000300347A - Toothbrush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively massage a border gum part by forming rubber-like bar brushes having a cross section form widening an outer peripheral side compared with the center side of a bristle implanting base at a part of the longitudinal border part of a bristle implanting base surface. SOLUTION: At the longitudinal border part 10B of the bristle implanting base surface of a bristle-planting base 10 successively formed at the tip of a handle 11, rubber-like bar brushes 20 are implanted by proper number. The shape of the cross section of these brushes 20 is nearly a triangle widening an outer peripheral side compared with the center side of the base 10. Namely, one corner faces the side of a center and its opposed edge part is positioned nearly in parallel with the longitudinal border part 10b of the base 10. In addition, the brushes 20 is gradually tapered upward and its top part 21 is rounded. Thus, even a border gum part is reliably attained and the high massaging effect of the gums by its elastic sliding operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to the removal of plaque,
The present invention relates to a toothbrush capable of massaging gums, and more particularly to a toothbrush in which a rubber-like rod-shaped brush for gum gum massage is implanted.

[0002]

2. Description of the Related Art As toothbrushes for massaging gums, there are brushes using brush bundles themselves and those using rubber-like bar-shaped brushes. The latter rubber-like bar-shaped brushes have a rectangular cross section, for example. There are already known ones which are planted such that the long side thereof is parallel to the long side edge of the flocking table (Japanese Utility Model Laid-Open No. 50-116658).

[0003] The rubber-like bar-shaped brush in the conventional toothbrush has the same width in the inside and outside directions of the flocking table, including the rectangular cross section as described above. There is a problem that it is easy to bend not only in the outside direction but also in the inside direction of the flocking table at the time of use, so that it hardly comes into contact with the marginal gingival part, and the massage effect on the gingival part is naturally low.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a toothbrush which solves the above-mentioned problems of the conventional toothbrush and which can obtain a high massage effect especially on marginal gingival parts.

[0005]

In order to achieve the above object, a toothbrush according to the present invention has a width on at least a part of a longitudinal edge of a surface of a flocking table, and a width on an outer peripheral side as compared with an inner central side of the flocking table. It is constructed by implanting a rubber-like rod-shaped brush having a wide cross-sectional shape.

Here, the cross-sectional shape is wider on the outer peripheral side than on the inner central side so that the rubber-like bar-shaped brush is more easily deflected outward than the inner side of the flocking table during use. Any specific shape is acceptable, but those having a substantially triangular shape or a substantially trapezoidal shape are preferred because they have excellent flexibility in the outward direction. In this case, it is preferable to appropriately impart roundness to the corners in order to obtain a soft touch in the mouth. In addition, the rubber-like brush may have a square bar shape of the same thickness as the whole, but it is preferable to make the brush slender upward so as to be excellent in the massage effect by the flexural elasticity and to impart a roundness to the top portion as appropriate. It is preferable for obtaining a soft contact feeling as described above.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS.
3 will be described.

In FIGS. 1 and 2, reference numeral 10 denotes a flocking table coupled to the tip of a handle 11, and a rubber-like bar-shaped brush 20 is appropriately planted on the opposed longitudinal edge 10b of the flocking table surface 10a. It is established.

The cross-sectional shape of the rubber-like rod brush 20 is as follows.
It has a substantially triangular shape that is wider on the outer peripheral side than on the inner central side of the flocking table 10. In other words, one corner is directed to the center side, and the opposite side is the long side edge 1 of the flocking table 10.
0b. Incidentally, all corners of the triangle are rounded.

Further, as shown in FIG. 2, the rubber-like rod-shaped brush 20 is gradually narrowed upward, and the top 21 is rounded. The rubber-like bar-shaped brush 20 may be made of any material such as rubber or rubber-like synthetic resin as long as it retains the bending elasticity. For example, styrene-butadiene rubber, ethylene-propylene rubber, silicone rubber, etc. Are preferred.

Reference numeral 30 denotes a brush bundle, which is provided with a suitable number of bristles on the bristled table surface 10a of the bristled table 10 as in the prior art.
The material of the brush bundle 30 may be natural hair or artificial hair such as nylon or polybutylene terephthalate.

FIG. 3 shows another example of a cross-sectional shape of the rubber-like bar-shaped brush 21. The brush 21 has a substantially trapezoidal shape. The portion 21b is placed on the outer peripheral side of the flocking table 10 and planted.

[0013]

According to the toothbrush of the present invention, the rubber-like bar-shaped brush has a greater flexibility in the outer direction than in the inner direction of the flocking table during use, so that it reaches the marginal gingival part without fail and its elastic sliding action. Since a higher gum massage effect can be obtained by use, a remarkable effect can be obtained also for improvement of gingivitis and the like.

[Brief description of the drawings]

FIG. 1 is a schematic plan view illustrating a flocking base of a toothbrush according to the present invention.

FIG. 2 is a schematic front view showing a flocking base of the toothbrush of the present invention.

FIG. 3 is an enlarged explanatory view showing another example of the cross-sectional shape of the rubber-like bar brush.

[Explanation of symbols]

 10: flocking table 10a: flocking table surface 10b: longitudinal edge 11: handle 20: rubber-like bar brush 20a: top 21: rubber-like bar brush 21a: parallel short side 21b: parallel long side 30: brush bundle

Claims (5)

[Claims] 1. A rubber-like bar-shaped brush having a cross-sectional shape that is wider on the outer peripheral side than on the inner central side of the flocking table is planted on at least a part of the longitudinal edge of the flocking table surface. toothbrush. 2. The toothbrush according to claim 1, wherein the cross section has a substantially triangular shape. 3. The toothbrush according to claim 1, wherein the cross section has a substantially trapezoidal shape. 4. The toothbrush according to claim 1, wherein the rubber-like brush is slender upward. 5. The toothbrush according to claim 1, wherein the rubber-like brush has a rounded top.