JPH08332117A - Toothbrush - Google Patents

Abstract

PURPOSE: To improve tooth brushing efficiency in compliance with the rugged shapes of the tooth surfaces by forming the front end parts of the hairs or hair bundles of a toothbrush to come into contact with the teeth to a straight shape and forming one curving part in the parts lower than the front end parts of the many hairs. CONSTITUTION: This toothbrush is provided with the many hairs which are formed to the straight shape in the front end parts of the hairs or the hair bundles 3 to come into contact with the teeth without degradation of the rigidity to the force from a lateral direction by the first deformation of the root parts from the central parts of the hairs when the force perpendicular to the root direction is applied thereon from the hair tips 4 at the time of brushing the teeth with the toothbrush and which are formed with the curved parts in the parts lower than the front end parts of the hairs or the hair bundles 3, i.e., the root parts from the central parts. As a result, the contact of the hair tips with a sufficient fit to the teeth in compliance with the rugged shapes of the teeth surfaces is made possible and, therefore, the tooth brushing efficiency is greatly improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toothbrush for facilitating the vertical movement (floating and lowering) of the tips of individual bristles or tufts of a toothbrush.

[0002]

2. Description of the Related Art In a conventional toothbrush, individual bristles or entire bristles are linear in shape (some have bristle tips, but at least they do not bend).
Moreover, the rigidity is the same as the root portion, the central portion, or the tip portion, or rather the tip portion is smaller. Therefore, when the toothbrush is pressed against the teeth, the tips including the tips of the hair are deformed (bent) like the conventional product of FIG. ) Since it is difficult to move, it is not possible to deal with the tooth meshing surface or the unevenness of the side surface. (B) In order to reach the tip of the hair to the recessed portion, excessive force was applied, the tip of the hair was partially deformed, the polishing efficiency was significantly reduced, and the gum was damaged. (C) The force of the finger is directly transmitted to the tips of the hair and the surface of the tooth, and excessive force may be applied, causing the surface of the tooth to be worn. (D) In order to deal with the unevenness of the polished surface, the length of the bristles becomes longer than necessary, the tips of the bristles are bent, and the period of use of the toothbrush is short. It was (E) Since the hairs or hair bundles are straight, 1 at the same location
Only a hair bundle of books was planted.

[0003]

Many types of toothbrushes have been developed in order to improve the polishing efficiency, but these problems have not been sufficiently addressed. The present invention has been invented to meet such a strong demand of users.

[0004]

[Means for Solving the Problems] When brushing teeth with a toothbrush,
When a vertical force is applied to the tip of the hair from the tip of the hair above a certain level, the root part from the center part of the hair is first deformed (bent), so that the force from the lateral direction The tip portion that comes into contact with the hair or the teeth of the hair bundle without decreasing the rigidity is
In order to prevent deformation (bending), (a) at least one bent portion from the central portion to the root portion below the tip portion of the hair or hair bundle, or (b) from the diameter of the tip portion Reduce the diameter of the root from the central part, or make the molecular arrangement of the hair fibers from the central part to the root part irregular,
Reduces crystallinity and rigidity. Next, utilizing the fact that the bristles or tufts have at least one bend, a plurality of tufts are planted at the same location (one hole) on the head of the toothbrush.

[0005]

[Function] When brushing a tooth with a toothbrush, if the bristles hit the convex parts of the teeth and a certain amount of force is applied to the bristles, the root part first deforms (bends) from the central part of the bristles or bristles. Therefore, the tips of the hairs or hair bundles are hardly deformed (bent). Therefore, as in the case of the product of the present invention shown in FIG. 2, the tips of the hairs properly capture the irregular portions of the teeth, and the polishing efficiency is greatly improved.

As shown in FIG. 3, when the root portion from the central portion of the bristles or bristles is deformed so as to have at least one bent portion, in the shapes of (C), (D) and (E), the bristle tips are formed. When the force is applied, the tips of the hair only sink vertically,
With the shapes of (A) and (B), the tips of the hairs move horizontally as well as sink. By using this, when the tip of the toothbrush is pressed against the tooth, it becomes possible to further bundle a plurality of (a) hair bundles as shown in FIGS. 8 and 9, and each hair bundle is The two hair bundles are pressed against each other, and the rigidity of the entire plurality of hair bundles is greatly increased.
As a result, the space where hair does not exist becomes large, and it becomes possible to intensively polish a specific portion with a plurality of hair bundles.

Next, in the shapes of FIGS. 3 (A) and 3 (B), when a force is applied to the bristle tips, the bristle tips sink and move horizontally at the same time. When brushing your teeth, you just have to press the toothbrush repeatedly where you want to brush it, and the tip of the bristles will sink, and at the same time it will move horizontally, resulting in the same effect as sliding the toothbrush. You can easily polish.

Since a plurality of hair bundles can be planted in the same place, it is advantageous in production, and a far larger number of hair bundles can be planted than the conventional product. Also, since it has a bent portion, it is possible to make the upper end of the bristles or bristles extend to the end of the head of the toothbrush, and to protrude beyond the head, so that there is no reduction in the number of bristles. The head made of plastic, for example, can be made much smaller, and it becomes easier to polish.

[0009]

【Example】

Example 1 Example 1 of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing a first embodiment, and FIG. 2 is a front view showing a comparison between the conventional product and the product of the present invention during operation. As shown in Figure 2,
When brushing with a conventional toothbrush, if you try to reach the tips of the bristles between the teeth, the bristles will bend and the bristles will open, reducing the polishing efficiency and damaging the gums. On the contrary, when the product of the present invention is used, the bent portion below the central portion is mainly deformed, so that the bristle portion contacting the tooth is not deformed, the polishing efficiency is significantly improved, and the gum is not damaged. . Next, since the irregular shape of the tooth is dealt with by deforming from the central portion of the hair or hair bundle from the bent portion below, the straight tip portion of the hair tip may be short. (The straight line portion here means a generally straight line shape, and the tip of the tip may be, for example, a spherical shape protruding from the straight line portion.)

Second Embodiment A second embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a perspective view of a shape example of a bent portion of the hair of the present invention. FIG. 4 is a front view showing the structure and working state of the hair bundle of the present invention. When brushing teeth with a toothbrush composed of bristles or bunch having a bent portion as in the example of FIG. 3, when a certain amount of force is applied to the bristle tips, it acts like FIG. The tip of the hair sinks without being deformed. In the case where the bent portion in FIG. 3 has a shape of (A) and (B), when a force over a certain level is applied to the hair tip, the hair tip sinks and moves horizontally at the same time, but the shape of (C) (D) (E) In the case of the example, there is almost no horizontal movement, only subduction.

Third Embodiment A third embodiment of the present invention will be described with reference to FIG. FIG. 5 is a front view of an example in which the middle part of the hair bundle is fixed. The middle part of the hair bundle may be fixed as shown in FIG. 5 or semi-fixed in a slightly moving state so that the individual hairs are not disturbed.

Fourth Embodiment A fourth embodiment of the present invention will be described with reference to FIG. FIG. 6 is a perspective view of an example in which a plurality of hair bundles are planted at the same place. Since the conventional product has a straight shape of hair or hair bundle,
Only one hair bundle was planted in the same place. If the hair or hair bundle has at least one bent portion as in the case of the present invention, it is possible to implant a plurality of hair bundles, for example, four hair bundles at the same location as shown in FIG.

Fifth Embodiment A fifth embodiment of the present invention will be described with reference to FIG. FIG.
The perspective view of the hair which reduced the rigidity of the root part from the center part. The diameter of the central part of the hair or the root part thereof is made smaller than that of the tip part as shown in FIG. 7, the molecular arrangement of the fibers of the central part or the root part is made irregular than the tip part, or the crystallinity is low. Are processed so that the rigidity is lower than that of the tip portion, and the center portion or the root portion is more easily deformed (bent).

Sixth Embodiment A sixth embodiment of the present invention will be described with reference to FIGS. 8 and 9. FIG. 8 is a front view showing the operation and structure of the present invention. FIG. 9 is a plan view showing the operation and structure of the present invention. When a force is applied to the tips of the hairs or hair bundles having a bent portion as shown in FIG. 8, the hair bundles move horizontally at the same time as they sink, and the hair bundles that have been separated are stuck to each other to form one block and pushed against each other. Together with this, a large rigidity can be obtained, and at the same time, a space where no hair is present is created, which is advantageous for intensively polishing a specific place. Next, by moving the tips of the hairs horizontally, by simply pressing the tips of the teeth against the teeth, it is possible to easily polish the back teeth and other difficult areas. Further, since the hair bundles are pressed against each other, it is possible to suppress a certain amount of deformation (bending). Alternatively, the direction of the bent portion may be changed for each row, for example, the first row may be horizontally moved to the right, the second row may be horizontally moved to the left, and the third row may be horizontally moved to the right.

[0015]

EFFECTS OF THE INVENTION In accordance with the uneven shape of the tooth surface, the hair tips can be intimately contacted with each other, so that the toothbrushing efficiency is greatly improved, and the hair tips are not disturbed, which damages the teeth and gums. There are few things.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a front view showing a comparison between a conventional product and a product of the present invention during operation.

FIG. 3 is a perspective view of a shape example of a bent portion of the hair of the present invention.

FIG. 4 is a front view showing the structure and working state of the hair bundle of the present invention.

FIG. 5 is a front view of an example in which the middle part of the hair bundle is fixed.

FIG. 6 is a perspective view of an example in which a plurality of hair bundles are planted in the same place.

FIG. 7 is a perspective view of the hair of the present invention with reduced rigidity from the center to the root.

FIG. 8 is a front view showing the operation and structure of the present invention.

FIG. 9 is a plan view showing the operation and structure of the present invention.

[Explanation of symbols]

 1 is a handle 2 is a head 3 is a bundle of hairs 4 is a tip of a hair 5 is a hole for hair transplantation 6 is a tooth

Claims (3)

[Claims] 1. In a manual toothbrush or an electric toothbrush, a tip portion of the toothbrush that contacts the bristles or bristles of the toothbrush is linear, and at least one portion is provided below the tip portion.
A toothbrush characterized in that it is composed of a large number of bristles having one bent portion. 2. The toothbrush according to claim 1, wherein a plurality of tufts of hair are arranged at the same location on the head of the toothbrush. 3. The rigidity of the tip portion of the toothbrush that contacts the bristles is greater than the diameter from the central portion to the root portion, or the rigidity of the tip portion is changed by changing the regularity of the molecular arrangement, the crystallinity or the like. A toothbrush characterized by being made up of a large number of bristles processed to be large.