JP3152717U - toothbrush - Google Patents

Abstract

To provide a toothbrush capable of efficiently performing tooth surface polishing and cleaning between teeth. SOLUTION: A bristle b having a bundle diameter n enough to be able to come into contact with a dent between teeth is arranged on a flocking base 1a of a synthetic resin brush body 1 in a row a shape which is a width direction and a longitudinal direction perpendicular thereto. The bristles B are arranged so as to be arranged in a row b, and the bristles B arranged in the row a are divided into two bundle groups Ga and one bundle group Gb, and a gap m of 2 pitches p is formed between the two groups Ga and Gb. The bristles B formed in such a manner that the two bundle groups Ga and the one bundle group Gb are alternately arranged along the column b direction, and the bristles B arranged in the row are two pitches p in the column b direction. The gap E is opened and the hair is planted. [Selection] Figure 2

Description

  The present invention relates to a toothbrush, and in particular, can efficiently perform tooth surface polishing and cleaning between teeth.

  Conventionally, there exists what was described in patent document 1 as an example of a toothbrush, and as shown in the side view of Fig.7 (a), this is the hair of the bristle B which was flocked to the flocking base 1a of the synthetic resin brush main body 1. The tip is continuously U-shaped, and the surface Ta of the tooth T is polished with the brush surface 2 at the bottom of the U-shaped cut, and the interproximal Tb is cleaned with the brush protrusion 3 between the U-shaped cuts.

  Conventionally, there is one described in Patent Document 2 as an example of an interdental brush. This is as shown in FIG. 7B, in which the central portion of the brush hair B is attached to the twisted wire 6 protruding from the handle 5. The brush bristles B are inserted between the teeth Tb and cleaned.

  Further, as another example of the interdental brush, there is one described in Patent Document 3 as shown in FIG. 7 (c). This is illustrated in FIG. The thin thread 9 is inserted into the interproximal Tb for cleaning.

Utility Model Registration No. 3143963 JP 2009-5740 A Utility Model Registration No. 3142041

  According to Patent Document 1, the surface Ta of the tooth T is brushed with the bristles B or the interdental Tb is cleaned, but when the interdental Tb is cleaned, the U-cut bottom brush Since the surface 2 hits the surface Ta of the tooth T, the brush protrusion 3 cannot sufficiently clean the back of the interdental Tb.

  According to Patent Document 2, when the width of the interproximal Tb is wide, the bristles B can be easily inserted into the interproximal Tb for efficient cleaning, but when the interproximal Tb is narrow, It is difficult to insert the bristle B into the interdental Tb and it cannot be cleaned.

  According to Patent Document 3, even when the width of the interproximal Tb is narrow, the fine thread 9 can be inserted into the interproximal Tb for efficient cleaning. It is difficult to efficiently clean the entire interproximal Tb with the thread 9.

  Moreover, when using the toothbrush of patent document 1 and the interdental brush of patent documents 2 and 3 separately, it takes time and trouble to change and use the three types of brushes, and the usability is bad. Economically expensive.

  An object of the present invention is to provide a toothbrush capable of efficiently performing tooth surface polishing and cleaning according to the width between teeth in view of the above-described conventional drawbacks.

  In order to achieve the above-mentioned object, the invention described in claim 1 is configured such that the bristles B having a bundle diameter n in such a manner that the bristles 1a of the synthetic resin brush body 1 can contact the dents of the interdental teeth Tb in the width direction. The hairs are planted so as to be arranged in a row a shape and a column b shape which is a longitudinal direction orthogonal to the row a, and the distances m and k between the brush hairs B arranged in the row a and / or the column b are set to at least the brush hairs. A configuration in which the gap corresponding to the bundle diameter n is set to 1.5 to 2.5 times the gap (this gap width is hereinafter referred to as “one pitch”) is adopted.

  The invention according to claim 2 is the invention according to claim 1, wherein the bristles B arranged in the row a are adjacent to each other with two bundles of bristles B in the row a at 1 pitch p to several pitches p. 2 bundle groups Ga to be planted and 1 bunch of bristle B is planted adjacent to the 2 bundle groups Ga at a pitch m that is at least twice the pitch p of the 2 bundle groups Ga. A configuration including one bundle group Gb is adopted.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the brush bristles B arranged in the row a are opened in the column b by opening a gap E at least 1 pitch p in the column b direction. The structure which is made by flocking is adopted.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the bristles B arranged in the row a have alternating two bundle groups Ga and one bundle group Gb in the column b direction. A structure in which the hairs are implanted in the column b so as to be arranged in the above is adopted.

  According to the first aspect of the present invention, the bristles B having a bundle diameter n that can contact the dents of the interdental teeth Tb are planted in a row a shape and a column b shape, and an interval between these bristles B is set to 1. Since the gap p is set to 1.5 to 2.5 times the pitch p and the gap E and the gap m are provided between the bristle B, the gap E and the gap m are used to clean the back of the tooth Tb. Can be cleaned.

  In short, it is possible to efficiently perform the polishing of the surface Ta of the tooth T and the cleaning according to the width of the interdental Tb with a single toothbrush.

  According to the second aspect of the present invention, as shown in FIGS. 3 and 4, when the individual interdental teeth Tb are cleaned, the bristles B of the two bundle groups Ga are applied to the wide interdental teeth Tb. Further, by passing the bristles B of one bundle group Gb through the narrow interdental teeth Tb, the individual interdental teeth Tb can be efficiently and reliably cleaned.

  According to the third aspect of the present invention, as shown in FIG. 5, in the case where a plurality of interdental teeth Tb are simultaneously cleaned, each gap E in the column b direction faces the surface Ta of the teeth T. The tip of each bristle B is inserted into each inter-tooth Tb, and the tip of each bristle B hardly hits the surface Ta of the tooth T as in the prior art. It is possible to cleanly clean a plurality of interdental teeth Tb at the same time by reliably inserting the hair tips to the back of the interdental teeth Tb.

  According to the invention described in claim 4, as shown in FIGS. 2 and 6, the bristles B of the two bundle groups Ga and the bristles B of the one bundle group Gb are alternately arranged, and are arranged in the row a direction. Since the gap m is surrounded by the bristles B of the two bundle groups Ga and the bristles B are densely planted on the flocking table 1a, not only the dents between the teeth Tb of the teeth T The entire surface Ta of the tooth T can be polished cleanly.

It is a perspective view of a toothbrush which is one embodiment of the present invention. (A) is an enlarged plan view of the main part, (b) is an enlarged side view of the main part, and (c) is an end view of the main part. (A) is a top view explaining the cleaning state between the same wide teeth, (b) is the longitudinal cross-sectional view. (A) is a horizontal sectional view explaining the cleaning state between the teeth of the same narrow width, (b) is an enlarged horizontal sectional view of the main part. (A) is a horizontal sectional view explaining the simultaneous cleaning state between the plurality of teeth, and (b) is an enlarged horizontal sectional view of the main part. It is a top view explaining the state which has polished the surface of the tooth. (A) is a side view which shows an example of the conventional toothbrush, (b) is a front view which shows an example of the conventional interdental brush, (c) is a front view which shows the other example of the conventional interdental brush.

FIGS. 1 and 2 show a toothbrush according to an embodiment of the present invention, and a bundle diameter n (see FIG. 2 (c
), See FIG. 5A), specifically, the bristles B having a bundle diameter n of about 1 to 3 mm are arranged in a row a shape that is a width direction and a column b shape that is a longitudinal direction orthogonal to the width a. The spacing k between the bristles B arranged in the row b and arranged in the column b is a gap p having a width corresponding to at least the bundle diameter n of the bristles B (this gap width is hereinafter referred to as “1 pitch”). ) Is set to 1.5 to 2.5 times (in this embodiment, twice), the gap E is formed between the brush hairs B in the column b direction. In addition, if the bundle diameter n of the bristle B is less than 1 mm, the contact degree with respect to the tooth | gear T of the bristle B is weak, and it is hard to exhibit a cleaning effect | action. As a result of experiments, it has been found that when the bundle diameter n exceeds 3 mm, it is difficult for the bristles B to come into contact with the dents of the interdental teeth Tb.

  As shown in FIG. 2 (a), the bristles B arranged in the row a are composed of two bundle groups Ga composed of two bundles of bristles B adjacent to each other at an interval of 1 pitch p, and one bundle of brush bristles. B is divided into one bundle group Gb, a gap m corresponding to 2 pitches p is formed between the two groups Ga and Gb, and two bundle groups Ga and one bundle group Gb are alternately arranged along the column b direction. The hair is arranged in the column b so as to be arranged.

  The 1 pitch p is a gap having a width corresponding to at least the bundle diameter n of the bristle B. In this embodiment, the bundle diameter n of the bristle B, that is, 1 pitch p is 2 mm, The interval m of the row a of B is 4 mm, which is twice as large.

  The interval k between the brush bristles B arranged in the column b is set to 1.5 to 2.5 times the pitch p. Here, when the interval k is less than 1.5 times 1 pitch p, the gap E is narrow, and therefore, when cleaning a plurality of inter-tooth Tb simultaneously (see FIG. 5), the bristles B are teeth T When hitting the surface Ta, it is difficult to fully insert the bristles B into the interdental teeth Tb. When the interval k exceeds 2.5 times 1 pitch p, the gap E becomes too wide, and it is difficult to simultaneously insert the bristles B into the plurality of teeth Tb. In this embodiment, the interval k is set to twice the 1 pitch p. As a specific example, the interval k is 6 mm.

  The procedure of use will be described. As shown in FIG. 3 (a), when individually cleaning the wide interdental Tb, the brush body 1 is gripped, the flocking table 1a is put in the mouth, and an appropriate gap E is formed. According to the teeth T, the two bundle group Ga is opposed to the wide inter-tooth interval Tb, and the brush body 1 is pushed and pulled in the front-rear directions c and d, as shown in FIG. The bristle B is inserted through the wide interdental Tb. In addition, when brushing teeth, it is preferable that the mouth contains water.

  As shown in FIG. 4 (a), when individually cleaning the narrow interdental teeth Tb, the brush bristles B of one bundle group Gb are opposed to the narrow interdental teeth Tb in the same procedure as described above, and the brush By pushing and pulling the main body 1 in the front-rear directions c and d, as shown in FIG. 4B, the bristles B of the one bundle group Gb are inserted through the narrow interdental teeth Tb.

  According to the above configuration, when cleaning the individual interdental Tb, the bristles B of the two bundle groups Ga are passed through the wide interdental Tb, and the single bundle group is applied to the narrow interproximal Tb. By passing the bristles B of Gb, the individual interdental Tb can be efficiently and reliably cleaned.

  As shown in FIG. 5 (a), when a plurality of interdental teeth Tb are simultaneously cleaned, the hair of each brush hair B in a state where each gap E in the column b direction faces the surface Ta of the tooth T. By making the tip face each tooth Tb and pushing the brush body 1 in the direction of the arrow e, the bristles of each brush hair B are inserted to the back of each tooth Tb, as shown in FIG. The brush body 1 is reciprocated in the vertical directions f and g along the interdental Tb.

  According to the above configuration, when the plurality of interdental teeth Tb are simultaneously cleaned, the bristles of the bristles B are arranged between the interdental teeth in a state where the gaps E in the column b direction face the surface Ta of the teeth T. Since the bristles of each of the bristles B do not hit the surface Ta of the tooth T as in the prior art, the bristles of each of the bristles B are surely inserted to the back of each interdental Tb. It can be easily inserted and a plurality of interdental teeth Tb can be cleaned at the same time.

  As shown in FIG. 6, when the surface Ta of the tooth T is polished, the bristles of the bristles B are brought into contact with the surface Ta of the teeth T, and the brush body 1 is reciprocated in the left and right directions h and i.

  According to the above configuration, the bristles B of the two bundle groups Ga and the bristles B of the one bundle group Gb are alternately arranged, and as shown in FIG. 2C, the gap m in the row a direction is two bundles. Since the bristles B are surrounded by the brush hairs B of the group Ga and the bristles B are densely planted on the flocking table 1a, the entire surface Ta of the teeth T can be polished cleanly.

DESCRIPTION OF SYMBOLS 1 Brush main body 1a Flocking table of brush main body B Brush bristles T Teeth Ta Teeth surface Tb Interdental E Gaps in vertical direction Ga 2 bundle group Bb 1 bundle group a Row b Column p P pitch m Horizontal gap n Bundle diameter k Column Distance between brush hairs in direction

Claims (4)

  Flocking so that the bristles of a bundle diameter that can contact the dents between the teeth are arranged in a row shape that is in the width direction and in a column shape that is the longitudinal direction perpendicular thereto The spacing between the bristles arranged in rows and / or columns is 1.5 to 2.5 of a gap having a width corresponding to at least the bundle diameter of the bristles (this gap width is hereinafter referred to as “1 pitch”). Toothbrush set to double.   The bristles arranged in a row have two bundle groups in which two bundles of bristles are planted next to each other in one or several pitches in a row, and at least twice the pitch of the two bundle groups The toothbrush according to claim 1, wherein the toothbrush is formed of a bundle group in which a bundle of brush hairs is planted adjacent to the two bundle group by opening a pitch.   The toothbrush according to claim 1 or 2, wherein the brush bristles arranged in a row are planted in a column with a gap of at least one pitch doubled in the column direction.   The toothbrush according to any one of claims 1 to 3, wherein the bristles arranged in a row are planted in a row so that two bundle groups and one bundle group are alternately arranged in a column direction.

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