JP2003265233A - Optimally pressurizing tooth brush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tooth brush which enables users to pressure that brushing is under optimum pressurizing force not only in drills of brushing at dental clinics but also in own application. <P>SOLUTION: The tooth brush 1 is made invertible so as to get its head warped when brushing is done under exceeding a specified pressurizing force. An elastic material 6 such as a stainless steel sheet is so arranged between the head 4 and the grip part 2 of the tooth brush 1 as to get the head part warped as the brushing is done under exceeding the specified pressuring force. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a properly pressurized toothbrush in the field of oral hygiene.

[0002]

2. Description of the Related Art It was once said that you should brush your teeth for 3 minutes within 3 minutes after eating 3 times a day. Brushing your teeth can keep your teeth clean and prevent tooth decay and periodontal disease.

However, if the brush of the toothbrush is pressed against the tooth when brushing the tooth, that is, if the pressure applied to brush the tooth is too strong, the tips of the brush will open and the plaque cannot be effectively removed, and the gums may be damaged. , Only a part of the tooth wears like a wedge. Many such patients are seen.

[0004] As described above, in a person who somehow brushes the brush without paying attention to the tips of the bristles, a force of 600 to 800 g is applied to the tooth, resulting in excessive pressure.

[0005]

At the dental clinic, patients are instructed and instructed to brush their teeth with a force of 250 to 350 g, but conventional toothbrushes use such an appropriate force. It was not possible to judge whether or not brushing was possible. Therefore, it has been a challenge to develop a toothbrush that can be judged by oneself to be brushing with an appropriate force, including brushing instruction at a dental clinic.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and in order to solve the above problems, the head portion of the toothbrush warps when brushing at a predetermined pressure or more. Thus, there is provided a toothbrush of appropriate pressure, which is characterized by being formed so as to be reversible and bendable.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The properly pressurized toothbrush of the present invention is
It is characterized in that the toothbrush is formed so as to be reversible or bendable so that the head portion warps when brushing at a predetermined pressure or more.

In the toothbrush 1, as shown in FIGS. 1 and 2, a head 4 is connected to a grip portion 2 having a predetermined length via a reversible head support portion 3, and a brush 5 planted in the head 4 is connected. I try to brush my teeth with proper brushing power.

As the head supporting portion 3, an elastic material 6 such as a thin stainless steel sheet is formed in a curved shape protruding in the direction opposite to the brush 5 as shown in FIG.
It is bifurcated as shown in FIG. 3 and its central portion is formed with a slightly wide interval, and the brush 5 has 250 to 3 teeth.
While being pressed with an appropriate pressing force of 50 g for polishing, when the polishing is performed with an excessive pressing force more than that, the elastic material 6 warps as shown by the chain line in FIG. I am trying to flip in the direction.

As a principle structure of reversal by the elastic material 6, for example, a structure of a hair accessory three-pin reversible structure can be adopted, and an elastic sheet such as a stainless steel sheet having a thickness of 0.2 to 0.5 mm. It can be formed by notching the material in a bifurcated shape and forming it into a desired arc shape as shown in FIGS. 1 to 3 so as to give a twisting distortion to the bifurcated portion and joining the tip portions.

When the tooth is in a healthy state not suffering from periodontal disease such as alveolar pyorrhea, the appropriate pressure of the toothbrush 1 described above is applied to an appropriate brushing force of 300 to 350 g and the thickness of the elastic material 6 is increased. It can be set by adjusting the sheath length, bifurcated space, and the like. In addition, when the tooth is in a state of periodontal disease such as alveolar pyorrhea, an appropriate pressing force of the toothbrush 1 is set to an appropriate brushing force of 250 to 300 g, which is slightly small, and a thickness and a length of the elastic material 6. Further, it is possible to adjust and set the interval of the shape and the like.

If the head supporting portion 3 is formed of a stainless steel sheet as described above, it has a rust preventive effect and can be beautifully finished with the appearance as it is, but the surface is aesthetically treated such as enamel treatment. It can also be processed.

Further, as shown in FIGS. 4 and 5, the head support portion 3
As the elastic material such as a spring steel sheet, a bronze sheet, a beryllium copper sheet, and a piano wire having a predetermined thickness, as described above, a flexible resin material such as nylon 6, 66 and polyurethane is used around the elastic material. The present invention can be appropriately implemented in accordance with the gist of the present invention, such as forming by coating with a coating material 7 of a rubber material such as silicon or the like.

Although it is expensive, an amorphous sheet, a carbon reinforced fiber sheet, an engineering plastic sheet such as polyimide having elasticity, or the like can be formed and used as described above.

Further, as the head support portion 3, FIG.
As shown in (a) and (b), the bifurcated tips of the three pins used in hair accessories can be crossed and joined with rivets 8, and both ends of the three pins have a predetermined length and the head 4 , And can be integrally formed by being inserted into the grip portion 2 to have a required strength. In the above description, one elastic material is used, but the whole or a part of the elastic material may be superposed in a double shape to obtain a required brush supporting force or a reversal converting force.

Further, as shown in FIGS. 7 (a) and 7 (b), the head supporting portion 3 is extended from the head 4 and the tip end portion is inserted into the bifurcated grip portion 2 so as to form the uneven portions 9 and 10. The head support portion 3 is fitted and rotatably coupled, the rear end of the head support portion 3 is dented, and the dented portion 11 is abutted with a ball 13 pressed and urged by a spring 12 such as a coil spring provided in the grip portion 2. , Head 4
When a predetermined load is applied to the head 4, the head 4 can be bent as shown by the chain line in FIG. It should be noted that instead of the spring, a magnetic coupling may be used.

Besides, it is also possible to use a reversing mechanism such as a lever mechanism used in a microswitch or a bimetal, and the structure of the above-described one is simple and practical, but a link / spring mechanism is used. It does not exclude the complicated things.

The gripping portion, the head and the brush of the toothbrush can be manufactured by utilizing conventionally known ones, and the materials, shapes, hardness of the toothbrush and the like can be the same as in the conventional case. .

[0019]

1 to 3 show an embodiment of the present invention. The toothbrush 1 has a head 4 having a length of 25 mm and a width of 8
mm, and a thickness of 4 mm, and in the planting portion, a brush 5 having 3 rows of nylon bristles having a length of 9 mm and a bunch of 8 bristles is planted.
The length of the rear grip portion 2 is 100 mm, and the three-pin-shaped head support portion 3 formed of the elastic material 6 of a bifurcated stainless steel sheet having a thickness of 0.3 mm has a smooth curved shape and both ends thereof are made of polypropylene. Head 4, grip 2
Each of them is inserted into each of them and integrally formed to have a total length of 160 mm.

The head support portion 3 of the elastic material 6 is 3
As shown in FIGS. 2 and 3, the bifurcated space is widened toward the center as compared with both ends so that it can be reversed by a pressing force of 50 g, and both ends are joined by being distorted into a predetermined curved shape. Both ends are attached to the head 4 and the grip portion 2, respectively.

In use, the grip portion 2 of the toothbrush 1
When the brush 5 is applied to the teeth for brushing, and a little strongly pressed for brushing, the head support portion 3 of the elastic material 6 is warped and the head 4 is turned outward as shown by the alternate long and short dash line in FIG. Therefore, the head 4 is returned to the inside again and brushing is performed while adjusting the force.

When the brushing is performed a little strongly in this way, the head 4 is turned over to the outside, so that it is possible to determine that the brushing is excessive and the proper pressing force can be known. It can be used with good durability without damaging the gums and without abnormally expanding the tips of toothbrushes.

Therefore, by using the toothbrush, the practitioner can be made to feel the brushing instruction at a dental clinic or the like, and the tooth can be brushed while applying appropriate pressure and checking. Is something that can be done.

FIGS. 4 and 5 show another embodiment of the present invention, in which a sheet material of spring steel having a thickness of 0.3 mm is punched into an elongated U-shape and the tip thereof is joined by welding or the like. The head support portion 3 is formed by coating the peripheral portion with a silicon rubber coating material 7.

This embodiment can be used in the same manner as the previous embodiment, and even if it is not made of stainless steel, it is covered with a flexible rubber material or resin material so as to have rust preventive power and be hygienic. Can be used for any purpose.

FIGS. 6 (a) and 6 (b) show still another embodiment of the present invention, in which the head supporting portion 3 of the elastic sheet material is crossed at its forked ends and joined by a rivet 8 as described above. As described above, the head 4 and the grip portion 2 are inserted and attached, and an appropriate modified mode can be implemented in this manner.

6 (a) and 6 (b), the head supporting portion 3 is extended from the head 4 and inserted into the gripping portion 2 having a bifurcated front end portion, and these side surface irregularities 9 are formed. 10 is fitted and rotatably coupled, and the recessed portion 1 at the rear end of the head support portion 3
1 is a spring 12 such as a coil spring provided in the grip portion 2
The ball 13 pressed against the head is abutted, and when the head 4 is subjected to a predetermined load, the head 4 is bent as shown by the one-dot chain line in FIG. Particularly, in this embodiment, the head portion can be exchangeably inserted and used in the grip portion.

As described above, the toothbrush can be inverted or bent, and various modifications can be implemented based on the gist of the present invention, and the toothbrush can be used as an electric toothbrush.

[0029]

As described above, according to the present invention, the toothbrush is formed so as to be reversible so that the head portion warps when brushing at a predetermined pressure or more. By reversing, it can be judged that it is excessive brushing, brushing can always be done with an appropriate pressing force, teeth and gums are not damaged, and a toothbrush can be used with good durability without abnormally expanding the tips.

In addition, by using this toothbrush, the practitioner can actually feel the brushing instruction in a dental clinic or the like, and also apply appropriate pressure to himself and brush his teeth while checking. Is something that can be done.

Further, by disposing a reversible elastic member between the head in which the brush of the toothbrush is implanted and the gripping portion, the reversible elastic material is arranged so that the head portion warps when brushing at a predetermined pressure or more. It is possible to easily and inexpensively manufacture a reversible toothbrush, and as described above, it is possible to perform brushing with an appropriate pressing force.

Further, by using an elastic material such as a steel material or a piano wire and covering a flexible resin material or a rubber material around the elastic material, a material other than the stainless steel sheet can be sanitarily manufactured. , Can be used.

Furthermore, by elastically supporting the head portion on the gripping portion so that the head portion bends when the toothbrush is brushed at a predetermined pressure or more, the above-described effect can be obtained. .

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention,

FIG. 2 is a plan view of the above,

FIG. 3 is a slightly enlarged side sectional view of the head support section of the above.

FIG. 4 is a side view of another embodiment of the above,

FIG. 5 is a plan view of the above,

FIG. 6 is a side view (a) and a plan view (b) of another embodiment of the head supporting section,

FIG. 7 is a side cross-sectional view (a) and a plan cross-sectional view (b) with a part of the other embodiment of the same embodiment omitted.

[Explanation of symbols]

1 ... Toothbrush 2 ... Grip 3 ...
Head support 4 ... Head 5 ... Brush 6 ...
Elastic material

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[Procedure amendment]

[Submission date] March 29, 2002 (2002.3.2)
9)

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 7

[Correction method] Change

[Correction content]

[Figure 7]

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Norito Nakahara             1-11 Nishikawara, Kakogawa-cho, Kakogawa-shi, Hyogo               Gracey Kakogawa Annex 602 (72) Inventor Yuko Nakahara             1-11 Nishikawara, Kakogawa-cho, Kakogawa-shi, Hyogo               Gracey Kakogawa Annex 602 F term (reference) 3B202 AA06 AB15 CB08 DA10 DB01

Claims (5)

[Claims] 1. A toothbrush of appropriate pressure, wherein the toothbrush is formed to be reversible so that the head portion warps when brushing at a predetermined pressure or more. 2. The reversible elastic material is arranged between the head in which the brush of the toothbrush is implanted and the gripping portion so that the head portion warps when brushing at a predetermined pressure or more. Properly pressurized toothbrush as described. 3. The head support portion between the head and the grip portion of the toothbrush has a curved shape protruding in the direction opposite to the brush so that the head portion warps when brushing above a predetermined pressing force. The toothbrush of proper pressure according to claim 1 or 2, wherein the head supporting portion is formed of an elastic material such as a reversible stainless steel sheet. 4. The properly pressurized toothbrush according to claim 1, wherein the elastic material is an elastic material such as a steel material or a piano wire, and a flexible resin material or a rubber material is coated around the elastic material. . 5. A toothbrush of appropriate pressure, wherein the toothbrush is elastically supported by the grip so that the head bends when brushing at a predetermined pressure or more.