JP2020192303A - 360 degree type toothbrush with hair tips that each have tapered shape and manufacturing method therefor - Google Patents

Abstract

To make tips of a disk type brush element that are only cut and, in the case of being used for oral cavity cleaning, provide bad touch, are hardly inserted into a periodontal pocket, and occasionally damage the pocket be into a tapered shape that provides soft touch, can be made to reach a bottom face part of a periodontal pocket, and is suitable for the cleaning.SOLUTION: After a 360 degree type toothbrush having brush hairs in the omni-direction of 360 degrees is manufactured or after a disk type element brush is manufactured, is made to receive insertion of a dedicated small-diameter shaft, and is fixed at both ends thereof, the steps of: inserting the toothbrush or the element brush into a cylindrical dedicated machine that has a paper part on the whole surface of its inside part having a diameter smaller than diameters of the respective brushes and has apertures at both ends thereof, and advancing the toothbrush or the element brush; temporarily taking out and withdrawing (drawing back) the toothbrush or the element brush; and, in addition, laterally rotating or inching the cylindrical dedicated machine are performed to complete creation of tapered parts at tips of the brush hairs by the built-in paper part.SELECTED DRAWING: Figure 1

Description

The present invention relates to a 360 ° type toothbrush, the toothbrush having tapered bristles, and the manufacturing method.

Currently, the 360 ° type toothbrushes on the market are roughly classified into the products having the shape shown in FIG. 1 and the rotating toothbrushes shown in FIG. 2, and the patent documents relating to them are shown below.

Patent Registration No. 3646118. Patent Registration No. 4000355. Patent Registration No. 4579345. Patent Registration No. 4040754.

The problem that the inventor tries to solve

Most of the 360 ° type toothbrushes and rotary toothbrushes described in the literature and currently on the market have no processing of the tip of the brush bristles, and the periodontal pocket has a bad mouthfeel when cleaning the oral cavity. Not only was it difficult to insert into the tooth, but the part was sometimes damaged. The subject was to manufacture a welded toothbrush that has a good mouthfeel and is suitable for cleaning periodontal pockets to solve these problems.

Means to solve problems

360 ° type toothbrush with brush bristles in all directions of 360 ° After manufacturing FIG. 1 or after manufacturing a disc type brush element, pass it through a dedicated small diameter shaft and fix both ends, and then the paper part on the entire inner surface smaller than each brush diameter. In addition to the process of inserting and advancing into a tubular special machine with openings at both ends and the process of pulling each brush out and retracting (pulling back), the tubular special machine is moved to the left and right. A tapered portion is completed at the tip of the brush bristles by the paper portion built in by rotating or oscillating.

By inserting a powder (ultrafine powder) whose moth hardening is higher than the physical properties of the brush material into the special machine cylinder, the powder becomes a medium in addition to the built-in paper, so that the brush tip taper portion By shortening the production time and using non-fine powder, the surface roughness becomes high and smooth, and the finish is also suitable.

The invention's effect

By processing the tip of the brush bristles of the 360 ° type toothbrush into a tapered shape, it is possible to clean the inside of the periodontal pocket when cleaning the oral cavity like the tapered bristles flocked toothbrush currently on the market. In addition, the cleaning effect of the interdental part was also improved.

And, from the state where the corners were sharply pointed just by cutting the tip of the brush bristles so far, it became a tapered shape, so it became soft and smooth.

In addition, from the viewpoint of disc type brush manufacturing, by making the tip of the brush bristles tapered (thinner), saturated polyester (PET) and polybutylene terephthalate (PET), which are stiff, hard, excellent in water absorption and inexpensive, are used. PBT) It has become possible to use hair. And since the length of the brush bristles is short, it is not necessary to use a finer brush bristles diameter of 0,07 mm, etc. than necessary to produce a soft feeling of use, and the length of the brush bristles can be increased from a soft feeling with a pleasant mouthfeel. It has become possible to increase the length by 1 to 2 mm (the diameter of the cylindrical brush is 17 to 19 mm from the usual 15 mm).

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

FIG. 1 shows a disc-type brush element 1 and a spacer 3 (small-diameter disc-type brush element, rubber disc-type brush element, convex portions on the entire side surface) on a small-diameter shaft protruding on an extension line of the tip of the toothbrush handle 2. laminated preferred amounts alternately be there) when the disk-type brush element having a front view showing an overall production of 360 ° toothbrush fixed by the tip welding unit 2 _a.

In FIG. 2, a rotation shaft 4 is provided in the direction perpendicular to the extension line of the tip of the toothbrush handle 2, and the disc-type brush element 1 and the spacer 3 and the like are alternately inserted into the shaft in a free rotation manner. 4 Both ends are fixed.

FIG. 3 is an enlarged plan view and a side view showing the structure of the desk-type brush element 1, in which a central small hole 1 _D is provided in the center of the brush bristles 1 _A that spread radially, and a welded portion 1 _C is provided around the entire periphery. has the to the central small hole 1 _D, the small-diameter shaft projecting on the extension of the tip of the tooth brush handle 2 or by laminating the disc-type brush element in the manner shown in the in the rotation shaft 4, the small-diameter shaft tip fixed by providing the welded portion 1 _C to.

3, the bristle tip end tapered portion 1 _B of the shape shown in circles within the dotted line, shown enlarged in FIG. Currently, bristle tip shape of 360 ° toothbrush that is commercially available as shown in 1 _A, or the shape of only the cut, but in the form of only the finished cut, the bristle tip tapered portion manufacturing apparatus of the present invention 5 the use of tapered portion as shown in 1 _B is completed.

Next, the manufacturing method will be described in detail in FIG. Wherein the 360 ° toothbrush or finished is welded and fixed by welding unit 1 _C as mass production and, in the case of rotary toothbrush manufacture, advance the disc-type brush element 1, after fixing the both ends through a dedicated small-diameter shaft, The brush bristles tip tapered portion 1 _B is processed by using the brush bristles tip tapered portion manufacturing apparatus 5. The procedure (step) will be described with the case of a 360 ° type toothbrush.

A tubular brush insertion entire interior of the bristle tip tapered portion manufacturing apparatus 5 includes a paper portion 5 _A, 360 ° toothbrush inlet, a 360 ° toothbrush to the cylindrical brush inlet portion provided with an outlet opening 5 _B Insert and project outward from the outlet opening. Next, the 360 ° type toothbrush is pulled back and protrudes outward from the entrance opening. By "repeating" this step, the brush bristles 1 of the 360 ° type toothbrush have an insertion brush shape 7 and a pullback brush shape 8 inside the brush bristles tip taper portion manufacturing apparatus 5. In order to realize this brush shape, it is necessary to "protrude the brush bristles 1 to the outside" (forward and backward in the X direction).

Next, the bristle tip tapered portion manufacturing apparatus 5 cylindrical brush insertion portion, left rotation (YZ axis ^+), right rotation (YZ axis ^-) is added. This may physically be a "dimension" in both directions. As a result, the tip of the brush bristles 1 _A of the disc type brush element 1 is formed into a tapered shape (needle shape) by evenly applying a force in both directions (all directions) ± the XYZ axes. It is also possible to manufacture a cannonball-shaped brush bristles _1A tip by shortening this step. Additionally, higher the paper portion 5 _A Mohs hardness emerald, change the diamond abrasive, the use of abrasive 6 _A to release from the polishing agent supply apparatus 6 shown in FIG. 6, the polishing agent 6 _A serves as a medium, and the polishing power of the brush bristles 1 increases remarkably. As described above, since the tip of the disc type brush element 1 used for the 360 ° type toothbrush has tapered bristles, the saturated polyester and polybutyl terephthalate bristles described above can also be used.

The front view which shows the whole structure of a 360 ° type toothbrush. The front view which shows the whole structure of a rotating toothbrush. A plan view and a side view showing the shape of the disc type brush element. The image figure which shows the tip shape (tapered part) of a disc type brush element. The process drawing which shows the manufacturing method of the disc type brush element tip shape (tapered part). 360 ° type toothbrush An image diagram showing an abrasive applied for processing the tip of a brush bristles.

Description of the sign

1. Disc type brush element.
1 _A , brush bristles.
1 _B , brush tip taper part.
1 _C , welded part,
1 _D , central small hole,
2. Toothbrush handle.
2 _A , tip welded part.
3, spacer.
4, rotation axis.
5. Brush bristles taper manufacturing equipment.
5 _A , paper section.
5 _B , entrance, exit opening.
6. Abrasive supply device.
6 _A , Abrasive,
7, Insert brush shape 8, Pullback brush shape

Claims (6)

A small-diameter shaft is provided on a handle that can be gripped and reciprocated with one hand, and the small-diameter shaft has a small hole in the center, the outer peripheral portion is welded and fixed, and the tip of the brush bristles has a tapered shape. A 360 ° type toothbrush characterized in that the tip of the shaft having a small diameter is melted and fixed after laminating the processed disc type brush elements. The 360 ° type toothbrush according to claim 1, wherein a disc type brush element having a brush tip portion laminated on a small diameter shaft provided on a handle and processed into a tapered shape rotates. The 360 ° type toothbrush according to claim 1 or 2, characterized in that a disc type brush element in which the tip of the brush bristles is processed into a tapered shape and spacers are alternately laminated on a small diameter shaft provided on the handle. Toothbrush to do. The 360 ° type toothbrush according to claim 1 or 2, wherein a disc type brush element having a tapered brush tip and a small diameter disc type brush element or a rubber disc type brush element are alternately used as handles. A toothbrush characterized by being laminated on a shaft with a small diameter provided. The 360 ° type toothbrush according to claim 1 or 2, having a small diameter in which a convex portion is provided on the entire side surface of a disc type brush element in which the tip of the brush bristles is processed into a taper shape, and the disc type brush element is provided on a handle. A toothbrush characterized by being laminated on a shaft. A process of providing a small-diameter shaft on a handle having a shape that can be gripped and reciprocated with one hand, and a small-diameter shaft having a small hole in the center, the outer peripheral portion being welded and fixed, and the tip of the brush bristles. A 360 ° toothbrush characterized by a step of manufacturing a disc-shaped brush element processed into a tapered shape, a step of laminating a suitable amount of the disc-shaped brush element, and a step of melting and fixing the tip of the shaft having a small diameter.

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