JPH0588324U - toothbrush - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a toothbrush capable of sufficiently removing plaque on a lower occlusal surface such as a first molar or a second molar without leaving unpolished. [Constitution] In a toothbrush in which a bristle bristle 5 and 6 is planted on a bristle bristle 5a, the length of the bristle bundle 5a that is planted on the tip portion 2 of the bristle bristle 1 is set. The bristle bundle 6a has a shorter hair length than the bristle bundle 6a that is planted on the other portion (rear portion) 3 of the bristle implantation table 1, and the average bristle tips of the bristle bundle 6a in the front portion 2 and the rear portion 3 of the bristle implantation table 1 respectively. At least part of the bristle bundles 5a, which have been bristled on the tip portion 2 of the flocking table 1, are aligned on substantially the same plane, and at least a part of the bristles bundle 5a is tilted toward the neck portion 4 side for flocking.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a toothbrush, and more particularly, to a toothbrush that is easy to brush up to a first molar (6th molar) and a second molar that are still lower than other teeth and is not brushed.

[0002]

[Prior Art]

 Generally, the first molars and the second molars erupt around the age of 6 in infants around the age of 6 years. In the process of eruption, the molar teeth 11 have a lower occlusal surface than other teeth. Since such a first molar and a second molar 11 are located in the inner part of the mouth, the tips of the hair are hard to reach and are hard to be brushed, so that plaque 12 is likely to accumulate in the contacted portion and easily cause dental caries. was there. On the other hand, in order to make it easier to remove such plaque on the lower occlusal surface, the toothbrush is made longer by making the bristle length of the tip portion of the hair transplanting table easier to reach the bristle tip (Japanese Utility Model Laid-Open No. 58-14733). Etc.) and a toothbrush with the neck portion inclined to the bristle side (Japanese Utility Model Laid-Open No. 58-14732, etc.) has been proposed.

[0003]

[Problems to be solved by the device]

 However, as described above, it is not possible to give sufficient bristle to the bristle simply by lengthening the tips of the teeth to facilitate the removal of plaque on the lower occlusal surface or by tilting the neck toward the bristle side. Although the hair tips reach the first and second molars 11, there is a problem that it is difficult to sufficiently remove the plaque firmly attached to the teeth.

Therefore, an object of the present invention is to provide a toothbrush capable of sufficiently removing plaque on a lower occlusal surface such as a first molar or a second molar, and having no polishing residue.

[0005]

[Means for Solving the Problems]

 The present invention relates to a toothbrush in which a bristle-implanted bristle bristle is tilted toward the bristle side with respect to the neck, and the bristle bundle bristle lengths that are bristle-implanted at the tip of the bristle bristle are transplanted to other parts of the bristle bristle. The bristle bundle is shorter than the bristle bundle so that the average bristle tips of the bristle bundles in the tip portion of the flocking table and the other portion are almost flush with each other, and the tip of the flocking table is The above object is achieved by providing a toothbrush characterized in that at least a part of the bristled bristles that have been bristled are tilted toward the neck side and bristled.

[0006]

[Action]

 In the toothbrush of the present invention, the bristle-implanted bristle is inclined with respect to the neck. Therefore, the bristle bundle at the tip of the bristle can reach the inner part of the mouth such as the first molar or the second molar. You can Moreover, since the bristle bundle at the tip portion has a shorter bristle length than the bristle bundles at other portions, it has a sufficient waist and is hard and the tip of the bristle is easy to move, so that the bristle bundle is hard on the first molar or the second molar. Can sufficiently remove the stuck plaque.

[0007]

【Example】

 Hereinafter, embodiments of the toothbrush of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a partially enlarged side view showing a flocking table portion of a toothbrush according to a first embodiment of the present invention, FIG. 2 is a side view showing a use state of a toothbrush according to the first embodiment of the present invention, and FIG. 2 is a partially enlarged side view showing the bristle implant part of the toothbrush of the second embodiment, FIG. 4 is a partially enlarged side view of the bristle implant part of the toothbrush of the third embodiment of the present invention, and FIG. 5 is a toothbrush of the third embodiment of the present invention. FIG. 6 is a side view showing a usage state of the toothbrush, and FIG.

First, a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. As shown in FIGS. 1 and 2, the toothbrush of the present embodiment is a toothbrush in which a bristle 5 and 6 is planted on a bristle stand 1 which is inclined toward the brisses 5 and 6 side with respect to the neck portion 4. Of the bristle bundle 5a planted on the tip portion 2 of the bristle bundle 6a is shorter than that of the bristle bundle 6a planted on the other portion (rear portion) 3 of the bristle implantation table 1, The average bristle tips of the bristle bundles 6a in the rear portion 2 and the rear portion 3 are aligned on substantially the same plane, and at least a part of the bristle bundles 5a planted in the front portion 2 of the bristle transplantation table 1 is The feature is that the hair is transplanted while tilting to the neck 4 side.

As shown in FIG. 1, the flocking table 1 is inclined to the bristle side at an angle X with respect to the neck 4, and the inclination angle X of the flocking table 1 is preferably 5 to 15 °. In particular, it is preferably 6 to 10 °, and the inclination angle X is set to 7 ° in this embodiment. The difference W between the bristle length of the bristle 5 planted on the front portion 2 of the bristle stand 1 and the bristle length of the bristle 6 planted on the rear portion 3 of the bristle stand 1 is 0.5 mm. It is preferably above, and particularly preferably 0.8 to 2 mm. This is because, if the difference between the bristle 6 and the bristle length is less than 0.5 mm, the bristle 5 cannot obtain sufficient waist.

Further, the bristle 6 in each bristle bundle 6a that is to be planted on the rear portion 3 has an average bristle length of 10 mm or less, preferably 8 mm, for the bristles 5 in the bristle bundle 5a that is to be planted on the tip portion 2. The bristle 6 having the bristles 6 planted in the rear portion 3 has a difference W in average hair length of 0.5 mm or more, preferably 1 mm to 2 mm. The front portion 2 is formed so as to stand up in a stepwise manner with respect to the rear portion 3. Further, the bristles bundles 5a and 6a are flocked on the flocking table 1 in a state in which a plurality (for example, 15 to 60) of bristles 5 and 6 are bundled. At least a part of the plurality of bristle bundles 5a planted on the tip portion 2 of the flocking stand 1 is inclined at the angle Y toward the neck portion 4 side. In this way, by inclining the bristle bundle 5a of the tip portion 2 of the flocking table 1 toward the neck side (inward direction of the flocking table 1), improving the plaque removal of the first molar teeth, the second molar teeth 11, etc. You can The angle Y is preferably 2 ° to 7 °, particularly preferably 3 ° to 5 °, and the inclination angle Y is set to 5 ° in this embodiment.

According to the toothbrush of the present embodiment configured as described above, the bristle-implanting base 1 is inclined with respect to the neck portion 4 toward the bristle-imparting side, and therefore, as shown in FIG. When brushing teeth, it is easier to reach the occlusal surface during the lower eruption, and at the same time, the bristle length at the tip portion 2 of the hair transplantation base 1 is shortened to make the bristle firm and the tip of the hair easy to move. Therefore, the plaque on the occlusal surface can be easily removed. When the bristle bundle 5a of the tip portion 2 of the flocking table 1 is tilted toward the neck side (inward direction of the flocking table 1), the toothbrush is slotted toward the mesial side, as shown by the arrow A in FIG. Improves plaque removal. Further, the bristle bundles 5a of the tip portion 2 of the flocking table 1 penetrate into the first molars, the second molars 11 and the like, and the bristle bundles 5a in the first and second molars 11 and The tips of any of the bristles 5 come into contact with each other, and the plaque can be effectively removed without polishing.

Next, another embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 3, the toothbrush according to the second embodiment of the present invention has a bristle bundle of the whole bristle bristles 1 in which the bristles 1 are divided into a front portion 2, a rear portion 3 and an intermediate portion 7 in three stages. The average tip positions of 5a and 6a are not uniform. In the second embodiment, the bristle bundles 5a, 6a, and 7a have different hair lengths, so that dental plaque on the occlusal surface having a complicated shape can be easily removed. , Because the hair length varies, short hair moves smoothly even if long hair bends, and the tip of the hair can be reliably delivered to the back. In the toothbrush of the third embodiment, the inclination angle X is 12 ° and the inclination angle Y is 7 °.

In the toothbrush of the third embodiment of the present invention, as shown in FIGS. 4 and 5, the tips 5b and 5b of the bristles 5 and 6 are formed in a spherical shape in the first embodiment. .. In this case, 50% or more of the plurality of bristles 5 and 6 adjacent to an arbitrary one should not come into contact with the spherical portions 5b and 6b at the tips of the one bristles 5 and 6 (different hair lengths). This is preferable. This is because if there are many bristles 5 and 6 of the same bristle length adjacent to the one bristle 5 and 6, the spherical portions 5b and 6b contact each other and the tips of the bristles 5 and 6 spread. , To avoid this. In the toothbrush of the third embodiment, the inclination angle X is 9 ° and the inclination angle Y is 3 °.

The diameter of the bristles 5 and 6 excluding the tips is preferably set to 6/1000 to 15/1000 inches. If it is less than 6/1000 inches, the bristle 5, 6 itself will have a weaker "bush", and the force applied during brushing may not be effectively applied as the power of plaque removal or gum massage. If it exceeds, the bristle 5 and 6 themselves become too strong and the feel on the gums deteriorates. The diameter of the spherical portions 5b and 6b at the tips of the bristles 5 and 6 is set to about 1.1 to 2.5 times, preferably 1.2 to 2.0 times the diameter of the portion excluding the tips. .. If it is less than 1.1 times, it is not the same as an ordinary type toothbrush in which the spherical portions 5b and 6b are not substantially formed, and the effect is insufficient. If it exceeds 2.5 times, the bristle bundle 5, The hair tips of No. 6 spread and the appearance deteriorates. Moreover, the spherical portions 5b and 6b are not necessarily spherical, but may be elliptical, claw-shaped, or cube-shaped with four rounded corners.

According to the toothbrush of the third embodiment, since the bristles 5 and 6 are provided with the spherical portions 5b and 6b at the tips thereof, the gingiva is massaged and plaque between the teeth and the gingiva is removed. Can be scraped. Furthermore, the bristle 6 in the rear portion 3 of the bristle bed 1 is made longer than the bristle 5 in the front portion 2 so that the average bristle positions of the bristle bundles 5 and 6 of the whole bristle bed 1 are aligned. It has a good usability. The present invention is not limited to the above-described embodiments, but can be variously modified without departing from the spirit of the present invention. For example, the bristle bundle with a short bristle tip that is flocked to the tip portion of the flocking table is only one bristle bundle located at the most distal end in the longitudinal direction of the flocking table, and only this bristle bundle is inclined toward the neck side. It may be one.

[0016]

[Effect of the device]

 As described above, in the toothbrush of the present invention, the bristle to be flocked on the tip of the flocking table reaches the lower occlusal surface such as the first molar or the second molar, and the bristle has an appropriate hardness. Since it has the above, the plaque on the occlusal surface can be sufficiently removed and there is no polishing residue.

[Brief description of drawings]

FIG. 1 is a partially enlarged side view showing a bristle implant part of a toothbrush according to a first embodiment of the present invention.

FIG. 2 is a side view showing a use state of the toothbrush according to the first embodiment of the present invention.

FIG. 3 is a partially enlarged side view showing a bristle implant part of a toothbrush according to a second embodiment of the present invention.

FIG. 4 is a partially enlarged side view showing a bristle implant part of a toothbrush according to a third embodiment of the present invention.

FIG. 5 is a side view showing a usage state of the toothbrush according to the third embodiment of the present invention.

FIG. 6 is a side view showing a general state of tooth alignment during early childhood.

[Explanation of symbols]

 1 Bristles 2 Front part 3 Other parts (rear part) 5 Bristle 5a Bristle bundle 6 Bristle 6a Bristle bundle X Inclination angle of bristle stand Y Inclination angle of bristles bundle

Claims (3)

[Scope of utility model registration request] 1. A toothbrush in which a bristle-implanted bristle bristling base is tilted toward the bristle side with respect to the neck, and the bristle bundle bristle lengths flocked to the tip of the bristle bristling are applied to other parts of the bristle bristling. Shorter than the hair length of the flocked bristle bundle, aligning the average bristle position of each bristle bundle in the tip portion of the flocking table and the other portion on substantially the same plane,
A toothbrush characterized in that at least a part of the bristle bundles, which have been bristled on the tip portion of the flocking table, are slanted to the neck side and are bristled. 2. The flocking table is 5 ° to 1 with respect to the neck.
The toothbrush according to claim 1, wherein the toothbrush is inclined toward the bristles in the range of 5 °. 3. The difference between the bristle length of the bristles planted on the tip portion of the flocking table and the bristle length of the bristles planted on other parts of the flocking table is 0.5 mm or more,
In addition, a part of the bristle bundle of the above-mentioned portion is 2 ° to 7 °.
The toothbrush according to claim 1 or 2, wherein the toothbrush is inclined toward the neck side in the range of °.