JP2568859Y2 - toothbrush - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toothbrush. More specifically, it is easy to polish a first molar (a 6-year-old molar) and a second molar which are one step lower than other teeth, and there is no residue. Related to toothbrush.

[0002]

2. Description of the Related Art Generally, first molars and second molars around 12 years of age are erupted in the childhood of about 6 years old, and as shown in FIG. In the process of eruption, the molars and second molars 11 are compared with other teeth.
The tooth surface is one step lower. Since such first molar teeth and second molar teeth 11 are located in the back of the mouth, their hair tips are difficult to reach and are difficult to polish, so that plaque 12 tends to accumulate in such portions and is susceptible to caries. Was. On the other hand, to make it easier to remove such plaque on the lower occlusal surface,
A toothbrush (Japanese Utility Model Laid-Open Publication No. 58-14733, etc.) has been proposed in which the tip of a flocking table has a longer bristle length so that the bristle tip can be easily reached. Japanese Patent Laid-Open No. 58-14732) has been proposed.

[0003]

However, as described above, if the bristle is simply lengthened or the neck is tilted toward the bristle side to make it easier to remove plaque on the lower occlusal surface, the bristle will have sufficient waist. And the bristle tips reach the first molar 11 and the second molar 11, but there is a problem that it is difficult to sufficiently remove the plaque firmly attached to the teeth. .

Accordingly, an object of the present invention is to provide a toothbrush which can sufficiently remove plaque on a lower occlusal surface such as a first molar or a second molar, and has no unpolished portion.

[0005]

This invention SUMMARY OF THE INVENTION may, flocked base that flocked bristles, in toothbrush inclined to the Burissu Le side with respect to the neck portion, of the bristle bundles, which are planted on the tip portion of the flocked base Hair length Is shorter than the bristle bundle length planted in the other part of the flocking table, and the average bristle tip position of each of the bristle bundles in the leading part of the flocking table and the other part is aligned on substantially the same plane. and at least a portion of the bundle of been the bristle bundles flocked earlier portion of the flocked base Yes and flocking inclined to the neck side, the flocking stage has
The bristle in the range of 5 ° to 15 ° with respect to the neck
Side is inclined to the side, and the flocked portion is
The bristle has a bristle length,
The difference from the bristle hair length is 0.5 mm or more.
In addition, a part of the bristle bundle of the tip portion has a bundle of 2 ° to 7 °.
The above object has been achieved by providing a toothbrush characterized by being inclined toward the neck in a range .

[0006]

In the toothbrush of the present invention, the bristles on which the bristles are planted are inclined with respect to the neck, so that the bristle bundle at the tip of the bristles is placed deep inside the mouth, such as a first molar or a second molar. Can be delivered. In addition, the bristle bundle of the tip portion has a bristle length shorter than that of the other portion, and therefore has sufficient waist, and is hard and easy to move the bristle tip. Sufficient plaque can be removed.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a toothbrush according to an embodiment of the present invention; FIG. 1 is a partially enlarged side view showing a flocked portion of the toothbrush of the first embodiment of the present invention, FIG. 2 is a side view showing a use state of the toothbrush of the first embodiment of the present invention, and FIG.
FIG. 4 is a partially enlarged side view showing a flocking table portion of the toothbrush of the second embodiment of the present invention, FIG. 4 is a partially enlarged side view showing a flocking table portion of the toothbrush of the third embodiment of the present invention, and FIG. FIG. 6 is a side view showing a use state of the toothbrush of the third embodiment, and FIG. 6 is a schematic side view showing a general arrangement of teeth in a childhood.

First, a first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the toothbrush according to the present embodiment is a toothbrush in which bristles 5 and 6 are implanted into a bristles 5 and 6 with respect to a neck 4. The length of the bristle bundle 5a planted in the tip portion 2 is shorter than the length of the bristle bundle 6a planted in the other portion (rear portion) 3 of the flocking table 1. The respective bristle bundles 6a in the rear portion 3 are arranged so that the average bristle tip positions thereof are substantially flush with each other, and at least a part of the bristle bundles 5a planted in the leading portion 2 of the flocking table 1 is bundled with the neck portion 4.
It is characterized by the fact that the hair is planted by tilting it to the side.

As shown in FIG. 1, the flocking table 1 is attached to the neck.
It is inclined to the bristle side at an angle X with respect to the part 4
However, the inclination angle X of the flocking table 1 is, 5~ 15 °, GoodMagusuku
Is 6 to 10 °, and in this embodiment, the inclination angle X is set to 7 °.
You have set. And on the tip part 2 of the flocking table 1
Hair length of the bristle 5 on which the hair is planted, and after the flocking table 1
The height of the bristle 6 implanted in the part 3The difference
0.5mm or more, GoodPreferably, it is 0.8 to 2 mm. Above
If the difference from the hair length of wristle 6 is smaller than 0.5 mm,
This is because the whistle 5 cannot obtain a sufficient waist.

The average bristle length of the bristles 6 in each bristle bundle 6a planted in the rear portion 3 and the bristle 5 in the bristle bundle 5a planted in the front portion 2 is 10 mm or less, preferably 8 mm. To 9mm and the rear part 3
It is preferable that the difference in the average bristle length of the bristle 6 planted in the hair is 0.5 mm or more, preferably 1 mm to 2 mm. still,
The front part 2 is formed so as to stand up in a stepped manner with respect to the rear part 3. Also, bristle bundles 5a, 6a
Is a plurality of bristles 5 and 6 (for example, 15 to 60)
Hairs are planted on the flocking table 1 in a bundled state. A plurality of bristle bundles 5 implanted in the tip portion 2 of the flocking table 1
At least a part of the bundle a is inclined at an angle Y toward the neck 4 side. By inclining the bristle bundle 5a of the tip portion 2 of the flocking table 1 toward the neck (inward of the flocking table 1), plaque removal of the first molar teeth, the second molar teeth 11, and the like is improved. Can be. This angle Y is 2 ° to 7 ° ,
Good Mashiku is 3 ° to 5 °, the inclination angle Y in this embodiment
Is set to 5 °.

According to the toothbrush of this embodiment configured as described above, the flocking table 1 provided with the bristles is inclined with respect to the neck 4 toward the side provided with the bristles.
As shown in the figure, at the time of brushing, it is easy to reach the occlusal surface in the lower erupting process, and at the same time, the bristle of the tip part 2 of the flocking table 1 is shortened, and the bristle is hardened.
In addition, since the bristle tips can be easily moved, plaque on the occlusal surface can be easily removed. Also, by inclining the bristle bundle 5a of the tip portion 2 of the flocking table 1 toward the neck (inward of the flocking table 1), the toothbrush can be moved as shown by an arrow A in FIG.
Improves plaque removal when slotalking to the mesial side.
Further, the bristles bundle 5a of the tip portion 2 of the flocking table 1 enters the first molars and the second molars 11 and the like, and the bristles bundles 5a of the first molars and the second molars 11 and so on The tip of the bristle 5 comes into contact, and plaque can be effectively removed without leaving unpolished.

Next, another embodiment of the present invention will be described with reference to FIGS. In the toothbrush of the second embodiment of the present invention, as shown in FIG. 3, the flocking table 1 is divided into a front section 2, a rear section 3 and an intermediate section 7 to form three stages, and a bristle bundle of the entire flocking table 1 is formed. The tip positions of the hairs 5a and 6a are irregular. In the second embodiment, the bristle bundle 5a,
Varying the bristle length in 6a and 7a makes it easier to remove plaque on occlusal surfaces of complicated shapes, and furthermore, the bristle length varies even when brushing with force when brushing the teeth. Even if it is bent, short hairs move smoothly and can reach the tip of the hair without fail. In the toothbrush of the second embodiment, the inclination angle X was 12 ° and the inclination angle Y was 7 °.

In the toothbrush of the third embodiment of the present invention, as shown in FIGS. 4 and 5, the tips 5b, 5b of the bristles 5, 6 in the first embodiment are formed in a spherical shape. . In this case, 50% or more of the plurality of bristles 5 and 6 adjacent to any one of the one bristles 5 and 6
It is preferable to avoid contact with the spherical portions 5b, 6b at the tip of 6 (to make the hair length different). This is because if there are many bristles 5 and 6 having the same hair length adjacent to the single bristle 5 and 6, the spherical portion 5b,
This is to prevent the tips of the bristles 5 and 6 from spreading because the 6b touch each other. In the toothbrush of the third embodiment, the inclination angle X is 9 ° and the inclination angle Y is 3 °.
And

It is preferable that the diameter of the portion of the bristles 5 and 6 excluding the tip is set to 6/1000 to 15/1000 inches. If it is less than 6/1000 inches, the "strain" of the bristles 5 and 6 themselves is weakened, and the force applied during brushing may not be effectively applied as a plaque removal or gum massage force, and 15/1
If it exceeds 000 inches, the “strain” of the bristles 5 and 6 themselves becomes too strong, and the feel to the gums deteriorates. Also, spherical portions 5b, 6b at the tips of bristle 5, 6
Is set to about 1.1 to 2.5 times, and preferably about 1.2 to 2.0 times, the diameter of the portion excluding the tip. 1.
If it is less than 1 time, it is substantially the same as a normal type toothbrush in which the spherical portions 5b and 6b are not 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. In addition, spherical part 5
b and 6b are not necessarily spherical, but may be elliptical, claw-shaped, or cubic with four rounded corners.

According to the toothbrush of the third embodiment, since the spherical portions 5b and 6b are provided at the tips of the bristles 5 and 6, the plaque between the teeth and the gingiva is removed while massaging the gingiva. Can be scraped. Furthermore, the bristle 6 in the rear part 3 of the flocking table 1 is longer than the bristle 5 in the front part 2 so that the average bristle bundles 5 and 6 of the entire flocking table 1 are aligned at the same average position. It has good usability. The present invention is not limited to the embodiments described above, and can be variously modified without departing from the spirit of the present invention. For example, the short bristle bundle with a bristle tip planted at the tip of the flocking table is only one bristle bundle located at the front end in the longitudinal direction of the flocking table, and only the bristle bundle is inclined toward the neck. May be.

[0016]

As described above, in the toothbrush of the present invention, the bristle planted at the tip of the flocking table reaches the lower occlusal surface such as the first molar and the second molar, and the bristle is suitable. Because of its high hardness, plaque on the occlusal surface can be sufficiently removed and there is no unpolished portion.

[Brief description of the drawings]

FIG. 1 is a partially enlarged side view showing a flocked portion 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 flocking table portion of the toothbrush according to the second embodiment of the present invention.

FIG. 4 is a partially enlarged side view showing a flocking table portion of the toothbrush according to the third embodiment of the present invention.

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

FIG. 6 is a side view showing a general arrangement of teeth in a childhood.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flocking table 2 Front part 3 Other part (rear part) 5 Bristle 5a Bristle bundle 6 Bristle 6a Bristle bundle X Tilt angle of flocking table Y Tilt angle of bristle bundle

Claims (1)

(57) [Scope of request for utility model registration] The method according to claim 1] flocking table that flocked bristles, in toothbrush inclined to the Burissu Le side with respect to the neck portion, other parts of the plant hairs stand hair length of bristle bundles, which are planted on the tip portion of the bristle base The bristle bundles planted in the bristle bundle are shorter than the bristle length, and the average bristle bundle position of each of the bristle bundles in the tip portion of the flocking table and the other portion is aligned on substantially the same plane,
And at least a part of the bristles bundle implanted at the tip of the flocking table is inclined toward the neck and implanted , and the flocking table is positioned above the neck in a range of 5 ° to 15 °.
The tip of the flocking table is inclined toward the bristle side.
And the other part of the flock table
The difference between the bristle length and the bristle length
And a part of the bristle bundle of the tip part is 2 bundles.
A toothbrush characterized by being inclined toward the neck in the range of ° to 7 ° .