JP6866553B1 - toothbrush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To consider patent documents, commercially available toothbrushes and the like, and there is a feeling that "the idea is exhausted in a flocked toothbrush that has continued for more than 100 years". Therefore, we thought that it was "absolutely impossible to manufacture", and the tip of the brush bristles of the toothbrush was "post-processed" to have a high degree of roughness and smooth processing to clean the oral cavity (periodontal pocket, interdental space). , Tongue surface, gingival massage) to provide consumers with a toothbrush that can be performed accurately with a single toothbrush. SOLUTION: Following the patent application for "post-processing" (the tip of the brush bristles is flat) of the toothbrush and the tip of the brush bristles, which we applied for earlier, each company in the industry is said to be "suitable for cleaning the oral cavity". The "curved shaving shape at the tip, chevron shape from the longitudinal direction" also has a 3D (three-dimensional shape) shape on the surface of the melting heater regardless of whether it is cut or not, and the amount of melting can be changed depending on each part. realizable. [Selection diagram] Fig. 4

Description

The present invention relates to a toothbrush.

Currently, the shape of the brush tip and the shape of the brush body (overall) of a commercially available flocked toothbrush are differently devised by each toothbrush manufacturing and sales company. Among them, the brush tip shape that is often used is a double-tapered or single-tapered shape, and the materials thereof are PBT (polybutylene terephthalate) resin and PET (polyethylene terephthalate) resin. And the reason is that the brush bristles are stiffer than the PA (polyamide = nylon) resin that has been widely used in the past (toothbrush, brush bristles do not fall down and the toothbrush is used for a long time), and it is tapered. It is considered that the processing can be easily carried out. In addition, even if the brush bristles after the taper processing is purchased from the yarn manufacturer, the price does not fluctuate because the cost is lower than that of the PA mentioned above. In addition, since the water absorption is excellent at about 0.4% (nylon 612) of PA and about 0.1% or less of PET, it can be dried in a short time after using the toothbrush, and "softness on the palate". Except for, PBT and PET are superior to PA.

Then, from the contents described in the patent document (the document number is shown below), in consideration of the feeling of use in the oral cavity, the ability to remove plaque, etc., we use our technology to provide a toothbrush that is excellent for consumers. I thought about providing it.

Japanese Unexamined Patent Publication No. 2014-0874775

The problem that the inventor tries to solve

At present, when the results of a detailed investigation of each toothbrush document and the ideas of those skilled in the art are "aggregated", the toothbrush and brush bristles described in Patent Document 1 (Japanese Unexamined Patent Publication No. 2014-0874575) remove plaque. It is excellent in power, and it is an object to provide the best toothbrush to consumers by performing "post-processing" using the toothbrush and brush bristles tip processing of the present invention.

Means to solve problems

In the present invention, the same applies to the single-tapered yarn bundle shown in FIG. 3 and the double-tapered yarn bundle shown in FIG. 4, and the processed toothbrush and the heater having the same surface as the brush bristles are heated to 450 to 600 °. Then, it is brought close to the tip of the brush bristles and stopped about 1 to 2 mm before, and the toothbrush and the tip of the brush bristles are processed by non-contact. The time required for this processing is about 2 to 5 seconds, but for the purpose of preventing mutual adhesion of the brush bristles that stand in the forest, a powder such as calcium that does not dissolve even at the heater temperature described above is used as a barrier. Should be used as.

Effect of the invention

As can be seen from the photographs of FIGS. 8 and 10, in the single-tapered yarn bundle (FIG. 8), the tip of the cut surface, which is a stepped flock, is also processed into a smooth hemispherical shape. Further, even in both tapered yarn bundles standing in a forest as shown in FIG. 9, by using a powder such as calcium as a barrier, the tip of the brush bristles is processed into a conical / cannonball shape without any mutual adhesion.

By processing the tip of this toothbrush and brush bristles, it became possible to efficiently scrape out the plaque in the periodontal pocket by forming a deformed shape on the tip of the tapered bristles. In addition, the irregular shape of the tip of the tapered bristles is a cone / cannonball shape, and the tip is 0.1 mm or less, so what is the insertion into the periodontal pocket whose entrance is about 1 to 1.5 mm? There is no problem.

In addition, as can be seen from the above photograph, the toothbrush and the tip of the brush bristles have a delicate surface because the irregular shape manufactured on the tip of the brush is due to heat and the surface is rough and smooth. It is also suitable for certain tongue cleaning, and because the area of the tip of the brush bristles is as large as a "ball toothbrush", it is easy to apply force and is also suitable for gingival massage. In addition, PBT (polybutylene terephthalate) resin and PET (polyethylene terephthalate) resin are used for the physical characteristics of the tapered yarn bundle because it is easy to process. These resins are chewy and can also be used as an interdental brush by providing protrusions on the tip of the brush for the purpose of scraping out plaque.

Then, as can be understood from the photograph of FIG. 10, when the powder used for the purpose of preventing the mutual adhesion of the brush bristles in the forest is calcium or the like, the calcium impregnated during use dissolves out, albeit in small amounts. Helps to return the oral cavity to alkaline. Originally, calcium is the main component of teeth (bones) and is also the main component of dentifrice.

Hereinafter, the best bear for carrying out the present invention will be described with reference to the drawings.

FIG. 1 shows a flocking table 2 suitable for cleaning dents between teeth and cleaning back teeth, and FIG. 2 shows a three-row flocking table 2 used as a general-purpose compact type, and a four-row toothbrush is a standard type. A toothbrush handle 1 is provided on the extension line thereof, and a suitable number of flocking small holes 3 are provided on the surface of the flocking table 2.

FIG. 3 is a cross-sectional view taken along the line AA of a toothbrush in which a flat line 5 is driven into a flocking small hole 3 provided in the flocking table 2 shown in FIG. FIG. 4 is a cross-sectional view taken along the line BB of a toothbrush in which a flat line 5 is driven into a flocking small hole 3 also provided in a flocking table 2 and both tapered thread bundles 6 are fixed in a flat state.

Then, the brush bristles tip portions in FIGS. 3 and 4 described above are subjected to the processing shown in FIGS. 5, 6, 8, 9, and 10. The method will be described in detail below.

In FIG. 3, as described above, the single-tapered yarn bundle 4 is flocked by driving a flat line 5 into the flocking small hole 3 provided in the flocking table 2. However, in the case of the purpose of cleaning the dents between the teeth and the back teeth (focusing cleaning of the narrow part), as shown in FIG. 3, for the purpose of concentrating the tapered portion in the one-sided tapered yarn bundle 4 in the center, the hair may be transplanted as a control. is there. Next, in order to process the tip portion of the brush bristles into the shape shown in FIGS. Heat to 600 ° C) and bring it closer to the virtual position (vertical direction) E of the processing heater (because of processing with a non-contact heat plate, the distance between the processing heater and the tip of the brush bristles should be about 1.5 to 2 mm, and the tip of the brush bristles should be about 1.5 to 2 mm. The ultimate temperature of is about 250-300 °). The substance absolutely necessary for this processing is calcium (powder) whose physical properties do not change even at the processing temperature, which is important for preventing mutual adhesion.

As shown in FIG. 6, the cut surface of the single-tapered yarn bundle 4 is also simultaneously processed into a smooth semicircle with high roughness. The ones showing this state are the one-sided taper thread cutting surface D of FIGS. 6 (image) and 8. Since this portion is buried in the forested brush bristles by stepped flocking, it is preferable that the processed surface = a smooth surface with high roughness from the state of being a "cut surface".

In the case of both tapered yarn bundles 6, the processing method is the same as the above method, and since the processing heater is moved as shown by the arrow, the processing shape is slightly larger at both ends having a long approach time (the tip portion of the brush before processing). Because is a flat surface, if it is cut and processed into a curved shape similar to that of a processing heater, the size of the processed part will be "almost the same shape").

Further, FIG. 7 is a diagram of the toothbrush described above, which is processed into a curved state also in the longitudinal direction. The dotted line indicating the heater position is the processing heater virtual position (longitudinal direction) F, and processing is performed by approaching from the direction of the mark loss.

In addition, these toothbrushes have a flocking table thickness of 3 to 4 mm for the purpose of improving operability in the oral cavity. Then, the brush bristles processing portion of the present invention is shown by the tip processing portion C.

The plan view which shows the shape of the toothbrush flocking table (two rows). The plan view which shows the shape of the toothbrush flocking table (three rows). FIG. 1 is a cross-sectional view taken from the AA cross section after flocking and hair tip processing. FIG. 2 is a cross-sectional view taken from the BB cross section after flocking and hair tip processing. An enlarged image diagram showing the shape of the toothbrush and the brush tip C (inside the dotted circle) after processing. An enlarged image diagram showing the cut end face of the one-side taper yarn and the shape of the dotted circle D in the processed shape. The front view of the brush seen from a plane (rotated by 90 °) with respect to the left side surfaces of FIGS. 3 and 4. Enlarged photograph of one-sided taper yarn after processing our tip. Enlarged photograph of both taper yarns after processing our tip. An enlarged photograph showing the state of calcium impregnated on the tip-processed surface after our tip processing.

Description of the sign

1. 1. Toothbrush handle.
2. Flocking stand.
3. 3. Flocked small holes.
4. One-sided taper thread bundle.
5. Flat wire (brass piece).
6. Both tapered yarn bundles.
7. The thickness of the flocking table.
C. Tip processing part.
D. Single taper thread cut surface (no taper processing).
E. Processing heater virtual position (vertical direction).
F. Processing heater virtual position (longitudinal direction).

Claims (4)

A toothbrush that cleans the oral cavity by grasping it with one hand and moving it back and forth. The shape of the toothbrush and the brush portion is curved in a chevron shape with respect to the longitudinal direction, and a melt-molded portion is formed at the tip of the brush bristles. The toothbrush is characterized in that the inside of the melt-molded portion is impregnated with powder, and the shape of the melt-molded portion is sequentially large and left-right symmetrically centered on the peak of the chevron. The toothbrush according to claim 1, characterized in that the shape of the toothbrush and the brush portion is curved in a mountain shape with respect to the longitudinal direction, and is also curved in a mountain shape with respect to the front surface. Toothbrush to do. A toothbrush according to claim 1 or 2, wherein the left and right brush bristles in the longitudinal direction of the brush form a single-row step evenly and shortly. The toothbrush according to any one of claims 1 and 3, and withstands a temperature higher than the melting temperature of the toothbrush and the brush bristle material for the purpose of preventing mutual adhesion due to heating to the bundle of threads of the toothbrush. In addition to melt-molding the toothbrush and the tip of the brush by the step of applying the powder and the step of bringing the hot plate processed into the same shape as the toothbrush and the brush bristles, the melt-molded portion is covered with the above-mentioned A method for manufacturing a toothbrush, which is characterized in that the powder is impregnated and the shape of the melt-molded portion is sequentially large and melt-molded symmetrically around the peak of the chevron.

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