JP3192049U - toothbrush - Google Patents

Abstract

Provided is a toothbrush capable of bringing a toothbrush into contact with a tooth surface or between a tooth and a gum at a stable angle and capable of cleaning efficiently.
A toothbrush (1) is a toothbrush in which brush bristles are planted on a flocking table (2). The bristles are planted in tandem in the longitudinal direction, and the bristles are continuously planted in tandem in the longitudinal direction as they move toward the other peripheral edge. An inclination angle with respect to a straight flocked surface passing through the tip of the highest bristle and the bristle tip having the lowest bristle length is in the range of 30 ° to 60 °.
[Selection] Figure 1

Description

  The present invention relates to a toothbrush in which bristles having different bristle lengths are implanted in a flocking table.

  2. Description of the Related Art Conventionally, a toothbrush in which soft brush bristles are implanted in a peripheral portion in the width direction of a flocking table of a toothbrush and hard brush bristles are implanted in an inner region of the peripheral portion has been proposed (for example, Patent Document 1 below). ). According to this toothbrush, when brushing teeth by the rolling method, while maintaining the cleaning effect by the hard brush hair in the inner region, it is said that the massage effect to the gingival part can be achieved by the outer soft brush hair Yes.

  However, tooth brushing methods include various methods such as a scrubbing method and a bath method in addition to the rolling method, and it is necessary to use the advantages of each method in combination. In particular, the bath method is a method in which the toothbrush is tilted by about 45 ° toward the gums and vibrated finely, and is a cleaning method that has a relatively high cleaning effect on the tooth spaces where plaque tends to accumulate. However, when the above-described toothbrush is applied, the hard brush hairs in the inner region may damage the gums, and cannot be used for people with weak gums. Further, when the toothbrush is inclined at 45 °, the brush bristles planted on one peripheral portion in the width direction of the flocking table are strongly brought into contact with the tooth surface, while the brush bristles planted on the other peripheral portion Can not make sufficient contact between teeth and gums. For this reason, it becomes difficult to stably brush the toothbrush in a state where the toothbrush is inclined by about 45 ° toward the gums, and the toothbrushing itself becomes insufficient.

  In order to solve the above problem, for example, in Patent Document 2 below, thermoplastic elastomer hairs are implanted in the width direction inner region of the flocking table, and both the outer regions in the width direction of the flocking table are harder than the thermoplastic elastomer hair. A toothbrush in which synthetic resin bristles are implanted is disclosed. Moreover, the bristle length of each bristle planted on the tuft is shortened continuously or stepwise from the inner side to the outer side in the width direction. According to this toothbrush, it is said that in the bath method, a high massage effect is obtained even for a person whose gums are weak, and the durability is also excellent.

  However, when brushing with a toothbrush having a configuration in which the bristle hair length decreases continuously or stepwise from the inner side to the outer side as in the case of the toothbrush, the inner bristle in the width direction is used. The bristle with the highest length is performed so as to contact the gums. Therefore, among the bristle planted from the inner side to the outer side in the width direction, the bristle planted toward one outer side is in contact with the tooth surface, but is planted toward the other outer side. The brush hair cannot contact the tooth surface and does not contribute to brushing. As a result, when brushing with the toothbrush, if the brush hair tries to come into contact with the gums and the tooth surface, the repulsive force is exerted on the brush hair to be brought into contact due to the rigidity of the brush hair that does not contribute to tooth brushing. Give rise to As a result, there is a problem that it is difficult to brush the bristles against the gums and tooth surfaces without applying pressure.

JP-T-2002-514946 JP 2007-289265 A

  The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a toothbrush that can contact a toothbrush at a stable angle between a tooth surface or a tooth and a gum and can be efficiently cleaned. It is to provide.

  In order to solve the above problems, the toothpaste of the present invention is a toothbrush in which brush bristles are planted on a flocking table, and the outermost one peripheral edge in the width direction of the flocking table has a bristle length. The bristle with the highest height is planted in tandem in the longitudinal direction, and the bristle whose bristle length decreases continuously toward the other peripheral edge is sequentially planted in tandem in the longitudinal direction. In view, the inclination angle with respect to the straight flocked surface passing through the tip of the bristle with the highest bristle length and the tip of the bristle with the lowest bristle length is in the range of 30 ° to 60 °.

  The said structure WHEREIN: It is preferable that the bristle of the bristle length similar to the bristle with the highest bristle length is planted by the front-end | tip part of the said flocking table.

  Further, in the above configuration, the tip of the bristles has an inclined surface with an inclination angle in a range of 30 ° to 60 °, and the inclined surface is directed downward toward the other peripheral edge. It is preferable to be inclined.

  According to the present invention, since the bristle having the highest bristle length is planted in the longitudinal direction on the outermost side of one peripheral edge in the width direction of the flocking table, the bristle height is the highest. For example, the bristles can be efficiently brought into contact with the periodontal pocket. As a result, the periodontal pocket can be efficiently cleaned.

  Further, according to the present invention, the bristle whose hair length continuously decreases as it goes from one peripheral part to the other peripheral part is sequentially planted in a longitudinal row in the longitudinal direction. The tip of the bristle with the highest bristle length and the inclination angle with respect to the straight flocked surface passing through the tip of the bristle with the lowest bristle length is in the range of 30 ° to 60 °, so it is planted on the tuft. Almost all of the bristles can be easily touched against the gums or tooth surfaces. Moreover, generation | occurrence | production of the repulsive force resulting from the bristle which does not contribute to toothbrushing can be suppressed, and giving a hard touch with respect to a user can be relieved.

It is explanatory drawing which represents typically the toothbrush which concerns on one Embodiment of this invention. It is a cross-sectional schematic diagram showing the said toothbrush. It is a cross-sectional schematic diagram for demonstrating the usage method of the said toothbrush. It is a cross-sectional schematic diagram showing the toothbrush which concerns on other embodiment of this invention.

  The toothbrush of this Embodiment is demonstrated below based on FIGS. 1-3. FIG. 1 is an explanatory view schematically showing a toothbrush according to an embodiment of the present invention. FIG. 2 is a schematic sectional view showing the toothbrush. FIG. 3 is a schematic cross-sectional view for explaining how to use the toothbrush.

  As shown to Fig.1 (a), the toothbrush 1 of this Embodiment has the holding part (not shown) which can hold | grip the said toothbrush 1, the flocking table 2, the holding part, and the flocking table 2. At least a connecting portion 4 to be connected is provided. The flocking table 2 is preferably formed in a flat plate shape such as a rectangle or an oval shape with rounded corners so that the brushing operation in the oral cavity can be performed smoothly.

  A plurality of hair bundles (tufts) 3 a to 3 d are planted on the flocking surface of the flocking table 2, thereby constituting the brush unit 3. The gripping part, the flocking table 2 and the connecting part 4 are made of synthetic resin such as polypropylene or ABS resin, for example. The flocked surface of the flocking table 2 is flat, and a number of flocked holes are formed at predetermined intervals in the vertical and horizontal directions. Each flocking hole is provided with a circular cross-section such that the root diameter of the hair bundles 3a to 3d planted in the flocking hole is, for example, 1 mm to 1.8 mm, and a depth of 2 mm to 5 mm, for example. Yes. In addition, the hair | bristle bundles 3a-3d are planted in each flock hole by the method of driving in a flat wire, the method of making it fuse | melt with heat, etc.

  A plurality of bristles 3 a to 3 d are arranged in a column in the longitudinal direction of the toothbrush 1. Each of the hair bundles 3a to 3d is configured by bundling a dozen or more brush hairs (brissels). The brush bristles have a thickness of 0.1 to 0.3 mm, for example, and are made of a filament material made of a synthetic resin such as nylon.

  The separation distance between the hair bundles 3a arranged in a column is not particularly limited, and can be set as appropriate. The same applies to the hair bundles 3b to 3d. Further, the distance between the hair bundles 3a to 3d is not particularly limited, and can be set as appropriate.

  The hair bundles 3 a to 3 d can be implanted in a matrix on the flocking table 2. Further, when the toothbrush 1 of the present embodiment is used by brushing by the bath method or the rolling method, the toothbrush 1 may be planted on the flocking table 2 in a staggered manner. Thereby, in the area | region where the filament density between a hair | bristle bundle is low, it can prevent that a bristle | brush will be in the state which is not fully contact | abutted between a tooth surface, a tooth | gear, and a gum. As a result, the tooth surface can be brushed uniformly, the occurrence of unpolished portions can be reduced, and the deterioration of stain removal ability can be prevented.

  Of the brush hairs planted on the flocking table 2, the brush hair planted on the outermost side of the peripheral edge R1 of the flocking table 2 has the highest bristle length. And the hair length of a brush hair is continuously low as it goes to the peripheral part R2 which is the width direction of the flocking table 2. FIG. The bristles planted on the outermost side of the peripheral edge R2 have the lowest bristle length. Further, in a cross-sectional view, the inclination angle θ with respect to the straight flocked surface passing through the tip of the bristle with the highest bristle length and the tip of the bristle with the lowest bristle length is in the range of 30 ° to 60 °, preferably 45 ° (see FIG. 2).

  The bristle length of the highest bristle can be in the range of 8 mm to 13 mm for adults, and can be in the range of 6 mm to 9 mm for children. About the bristle length of other brush hair, it sets suitably by the value of the said inclination-angle (theta). In addition, hair length means the distance from the flocking surface in the flocking stand 2 to the front-end | tip of brush hair.

  The shape of the tip of the bristle is not particularly limited. For example, the tip of the brush hair may be cut in a substantially horizontal shape. In the present embodiment, the tip of each bristle has an inclined surface with an inclination angle of 30 ° to 60 ° with respect to the horizontal plane, and the inclined surface is downward toward the other peripheral edge. It is preferable to be inclined. Thereby, when brushing teeth, it becomes possible to increase the area contacted with the tooth surface.

  In the toothbrush 1 of the present embodiment, since the brush hair having the highest bristle length is implanted in the longitudinal direction on the outermost side of the peripheral edge portion R1 in the width direction of the flocking table 2, the bristle length The highest bristle can be efficiently brought into contact with the periodontal pocket, for example (see FIG. 3). On the other hand, since the bristle hair which contacts the tooth surface becomes shorter as it gets away from the gums, the brush hair does not contact the tooth surface excessively strongly. As a result, the periodontal pocket and the like can be efficiently cleaned, and the usability is also improved.

  Moreover, according to the toothbrush 1 of this Embodiment, in the hair length of the bristle planted by the flocking table 2 shape, in the cross-sectional view, the front-end | tip of the brush hair with the highest bristle length and the bristle length are the most Since the inclination angle with respect to the straight flocked surface passing through the tip of the low brush hair is set within the range of 30 ° to 60 °, the occurrence of repulsive force by the brush hair that does not contribute to tooth brushing is suppressed. It is possible to alleviate giving a hard feeling to. Moreover, the penetration property to a tooth | gear gap | interval and a periodontal pocket is high, and a high feeling of brushing can be obtained without imposing a burden on a gum.

  Furthermore, the toothbrush 1 of the present embodiment has a continuous reduction in the bristle length as it goes from the peripheral edge R1 to the peripheral edge R2, so that the toothbrush 1 can be easily inserted into the oral cavity, and The brushing operation can be performed smoothly.

(Other matters)
In the tooth brushing of the present invention, the number of rows of hair bundles, the number of hair bundles constituting each row, the arrangement relationship, etc. are not limited to the present embodiment. For example, as shown in FIG. 4, with a toothbrush 11 in which brush bristles 12 having the same bristle length as the bristle having the highest bristle length planted at the peripheral edge R1 are further planted at the tip of the bristles 2. There may be. By planting the bristle 12 having a high bristle height at the tip of the flocking table 2, it is possible to efficiently clean the teeth between the back teeth.

  Further, in the tooth brushing of the present invention, when brushing the toothbrush along the direction in which the teeth are growing like vertical brushing, the brush hair having a high bristle length planted in the peripheral portion R1 is inserted into the interdental portion. It is possible to reliably intrude and contact the recesses and recesses due to irregularities in the dentition, and it is possible to effectively remove food residues and plaque. As a result, it becomes possible to further improve the cleaning effect and to obtain a sufficient polished response.

  Furthermore, in the said embodiment, the bristle with the highest bristle length is planted in the outermost part of R1 of a peripheral part, and the bristle | bristles which a bristle length becomes low continuously as it goes to the peripheral part R2. Although the planted aspect has been described, the present invention is not limited to this aspect. For example, the bristle having the highest bristle length is planted on the outermost side of the peripheral edge R2, and the brush bristle whose bristle length decreases continuously toward the peripheral edge R1 is sequentially planted. May be. And when brushing teeth, it is preferable to use these two types of toothbrushes from the viewpoint of improving the cleaning effect.

DESCRIPTION OF SYMBOLS 1, 11 Toothbrush 2 Flocking table 3 Brush part 3a-3d Hair bundle 4 Connection part

Claims (3)

A toothbrush in which the brush bristles are planted on a flocking table,
On the outermost side of one peripheral part in the width direction of the flocking table, brush hairs having the highest bristle length are planted in tandem in the longitudinal direction, and the bristle height decreases continuously toward the other peripheral part. The bristles are planted sequentially in a longitudinal row in the longitudinal direction,
A toothbrush in which the angle of inclination with respect to a straight flocked surface passing through the tip of the bristle with the highest bristle length and the tip of the bristle with the lowest bristle length is in the range of 30 ° to 60 ° in cross-sectional view.   The toothbrush according to claim 1, wherein a bristle having a bristle length similar to that of the bristle having the highest bristle height is implanted at a tip of the flocking table. The tip of the bristles has an inclined surface with an inclination angle in a range of 30 ° to 60 °, and the inclined surface is inclined downward toward the other peripheral edge. Toothbrush as described in.

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