JP3231765U - Oral brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oral brush in which the tip of a brush bristles can be easily brought into contact with a target portion of the oral cavity and the operation burden on the user can be reduced. SOLUTION: An oral brush has a shaft-shaped main body portion 11, and a plurality of brush bristles 12A protruding outward from the outer peripheral surface of the main body portion and provided over the entire circumference of the main body portion. Has. [Selection diagram] Fig. 1

Description

The present invention relates to an oral brush having a plurality of bristles that come into contact with a target site of the oral cavity.

For oral care, gingival massage, tongue coating removal, food residue removal and the like are performed, and an example of an oral brush used for such oral care is described in Patent Document 1 and the like. The oral brush described in Patent Document 1 is shown in FIG. The oral brush 100 has a shaft-shaped main body 102 and a hair bundle 104 provided on the main body 102. The main body 102 has a head 105 and a handle 106 connected to the head 105. The head 105 has a flat flocked surface 107, and the bristles 104 are a plurality of brush bristles 103 fixed to the flocked surface 107. The plurality of brush bristles 103 project substantially vertically from the flocked surface 107, and the tips of the plurality of brush bristles 103 are substantially flat as a whole.

Japanese Unexamined Patent Publication No. 2020-168465

When the user grasps the handle portion 106 of the oral brush 100 as shown in FIG. 11 by hand and tries to massage the tips of the plurality of brush bristles 103 in contact with the target portion of the oral cavity, for example, the gingiva. It is difficult for the tips of the plurality of brush bristles 103 to come into contact with the gingiva, and the user flips the main body 102 in the case of massaging the outer surface of the gingiva and the case of massaging the inner surface of the gingiva, that is, in the thickness direction. It had to be rotated by about 180 degrees, which had the disadvantage that the operation was troublesome.

An object of the present invention is to provide an oral brush that makes it easy for the tip of the brush bristles to come into contact with a target portion of the oral cavity and reduces the operational burden on the user.

The oral brush of one embodiment includes a shaft-shaped main body portion, and a plurality of brush bristles that are projected outward from the outer peripheral surface of the main body portion and are provided over the entire circumference of the main body portion. Has.

According to the oral brush of one embodiment, the tip of the brush bristles can be easily brought into contact with the target portion of the oral cavity, and the operation burden on the user can be reduced.

It is a perspective view which shows the 1st Embodiment of the oral brush. It is a front view of the oral brush of FIG. FIG. 5 is a side sectional view showing a state in which the tip of the brush bristles of an oral brush is in contact with the outer surface of the gingiva. It is a top view of the gingiva which shows the state which the tip of the brush bristles of an oral brush is in contact with the outer surface of the gingiva. It is a front view which shows the 2nd Embodiment of an oral brush. (A), (B), and (C) are side views showing an example of the shape of the outer peripheral end of the hair bundle in a plane perpendicular to the center line of the main body. It is a front view which shows the shape of the tip of the hair bundle in the direction along the center line of the main body part. It is a front view of the oral brush which made it possible to discharge a disinfectant liquid from a main body part or the tip of a brush bristles. (A) is a front view showing another example of an oral brush in which a disinfectant can be discharged from the main body or the tip of the brush bristles, and (B) is an example in which the head is removable from the handle. It is a front view which shows. (A), (B), (C), and (D) are side views showing an example of the outer peripheral shape of at least a part of the main body in a plane perpendicular to the center line of the main body. It is a front view which shows an example of the conventional oral brush.

Hereinafter, an embodiment of the oral brush of the present invention will be described in detail with reference to the drawings. In addition, in all the drawings for explaining the embodiment of the oral brush, in principle, the same parts are designated by the same reference numerals, and the repeated description thereof will be omitted.

[First Embodiment]
In the first embodiment of the oral brush, the user manually operates the oral brush. As shown in FIGS. 1 and 2, the oral brush 10 has a shaft-shaped main body portion 11 and a hair bundle 12 provided on the outer peripheral surface of the main body portion 11. The main body 11 is made of, for example, a synthetic resin, and the synthetic resin may be any of AS resin, ABS resin, PP resin, saturated polyester resin, elastomer resin and the like. 1 and 3 show an example in which the main body 11 has a cylindrical shape. As shown in FIG. 3, for example, the outer peripheral surface shape of the main body portion 11 is circular in a plane perpendicular to the center line A1 in the thickness direction, that is, the diameter direction. The center line A1 is a virtual line located at the center of the main body 11 in the radial direction.

The main body portion 11 has a handle portion 13 and a head portion 14 connected to the handle portion 13 in a direction along the center line A1. Note that FIG. 2 shows an example in which the thickness of the main body portion 11, that is, the diameter Φ1, is the same within the range in the direction along the center line A1. The handle portion 13 and the head portion 14 of the main body portion 11 are integrally molded with synthetic resin.

The bristles 12 are formed by flocking, that is, fixing a large number of brush bristles 12A on the outer peripheral surface of the main body 11. The area in the direction along the center line A1 of the main body 11, that is, the range in which the hair bundle 12 is provided is defined as the head 14 for convenience, and the range in which the hair bundle 12 is not provided is defined as the head 14. , Defined as the handle portion 13. The handle portion 13 is a portion that the user grips with a hand, specifically, a finger. In the direction along the center line A1, the length L1 of the handle portion 13 is longer than the length L2 of the head 14. FIG. 2 shows an example in which the length L1 is about twice the length L2.

The brush bristles 12A project outward from the outer peripheral surface 14A of the head portion 14 in the radial direction of the main body portion 11, and the brush bristles 12A radiate over the entire circumferential direction of the head portion 14. Many hairs have been transplanted. The brush bristles 12A have a length (height) T1 of, for example, about 1.0 mm 〜 1.0 cm. The brush bristles 12A are, for example, chemically synthesized filaments having a thickness of about 0.08 mm 〜 0.25 mm, or natural bristles. The chemically synthesized filament may be, for example, nylon, PBT, PP or the like. The natural hair may be any of pig hair, padger hair and the like.

The brush bristles 12A have a length T1 protruding from the outer peripheral surface 14A of the head 14. The brush bristles 12A shown in FIGS. 1, 2 and 3 have the same length T1 of the brush bristles 12A in the entire circumferential direction of the head 14 and the entire direction along the center line A1 of the head 14. An example is shown. Therefore, the shape of the outer peripheral edge of the hair bundle 12 is a circle centered on the center line A1 as shown in FIG.

Next, an example in which the user cares for the human oral cavity using the oral brush 10 will be described with reference to FIGS. 3 and 4. FIG. 3 shows an example in which a user massages the gingiva (gingiva) 15 of the lower jaw using the oral brush 10. The gingiva 15 covers the surface of the alveolar bone 16 of the lower jaw, and the teeth 17 are supported by the alveolar bone 16. The user grasps the handle portion 13 with a finger, inserts the head 14 on which the hair bundle 12 is transplanted between the tongue lips (lips) 18 and the gingiva 15, and inserts the tip of the hair bundle 12 into the gingiva 15. The gingiva 15 is massaged by contacting the outer side surface 15A.

The user makes the main body 11 substantially horizontal and presses the tip of the hair bundle 12 against the outer surface 15A of the gingiva 15, reciprocates (vibrates) the main body 11 in the direction along the center line A1, and moves the main body 11. The gingiva 15 is massaged by performing at least one of the operations of rotating the gingiva 15 at a predetermined angle, for example, an angle of less than 360 degrees about the center line A1. The direction in which the main body 11 is moved is not limited to the above example, and can be arbitrarily selected according to the user's preference, the shape of the gingiva, and the like. As a result, at least one of the following effects such as promoting keratinization of the epithelium of the gingiva 15 to give resistance to the gingiva 15, preventing inflammation of the gingiva 15, improving the tissue of the gingiva 15, and improving blood circulation in the gingiva 15 is obtained. Be done.

When the user massages the inner surface 15B of the gingiva 15 with the oral brush 10, the user moves the oral brush 10 so that the head 14 exceeds the teeth 17, and the tip of the brush bristles 12A is the inner surface. It may be pressed against the 15B to perform at least one of the plurality of operations described above. That is, since the bristles 12 are provided over the entire circumferential direction of the main body 11, the tip of the brush bristles 12A is pressed against the inner side surface 15B without rotating the main body 12 in the thickness direction. Can be done. Therefore, in the oral brush 10, the tip of the brush bristles 12A can be easily brought into contact with the target portion of the oral cavity, and the operation burden on the user can be reduced.

In addition to massaging the lower gingiva 15 by using the oral brush 10, the user can massage the upper gingiva, the inner surface of the tongue lips 18 and the inner surface of the upper lip (lip), the lower gingiva 15 or the teeth. 17, and removal of food residue adhering to the gingiva or teeth of the upper jaw, removal of plaque (bacteria) adhering to the groove (periodic pocket) between the lower jaw tooth 17 and the gingiva 15, removal of the upper jaw It is also possible to remove plaque adhering to the groove (periodic pocket) between the teeth and gums, remove tongue moss, and the like. That is, the target portion to be brought into contact with the tip of the brush bristles 12A may be any of the gums, teeth, tongue, periodontal pocket, inside of the lips, and the like.

Furthermore, when the user performs oral care using the oral brush 10, it is possible to reduce oral viruses (including the new coronavirus) and bacteria, and it is possible to maintain the oral environment hygienically. It is desirable that the user performs oral care using the oral brush 10 immediately after waking up in the morning and before breakfast.

[Second Embodiment]
In the second embodiment of the oral brush, the oral brush can be operated by an electric motor. The oral brush 20 shown in FIG. 5 has a tubular grip 21, a power supply 22 provided in the grip 21, an electric motor 23 provided in the grip 21, and a main body portion 11 in which hair bundles 12 are transplanted. And have. The grip 21 is made of an insulating material, for example, a synthetic resin. The power supply 22 may be either a secondary battery or a primary battery. The electric motor 23 is an electric motor that is rotated by electric power supplied from the power source 22, and the output shaft 24 of the electric motor 23 can rotate in the forward direction and in the reverse direction. A part of the handle portion 13 is arranged inside the grip 21, and the handle portion 13 and the output shaft 24 are connected by a coupling 25.

An operation unit 26 is provided on the outer surface of the grip 21, and a controller 27 is provided inside the grip 21. The controller 27 receives the operation signal of the operation unit 26 and controls the supply and stop of electric power from the power supply 22 to the electric motor 23. By operating the operation unit 26, the user can switch between the control of supplying the electric power of the power source 22 to the electric motor 23 and the control of cutting off the electric power of the electric motor 23. The rotation direction of the electric motor 23 may be automatically switched by the controller 27, or may be switched by the user by operating the operation unit 26. Further, the oral brush 20 has a structure in which the main body 11 is reciprocated in the direction along the center line A1 by the rotational force of the output shaft 24, or the main body 11 is centered by the rotational force of the output shaft 24. Of the structures reciprocating in the direction intersecting A1, at least one structure may be provided.

[Other specific examples]
6 (A), (B), and (C) show an example in which the shape of the outer peripheral edge of the hair bundle 12 is non-circular in a plane centered on the center line A. That is, the lengths of the brush bristles 12A are non-uniform in the circumferential direction of the head 14. The specific examples of FIGS. 6A, 6B, and 6C can be applied to any of the first and second embodiments of the oral brush. The bristles 12 shown in FIG. 6A have a brush bristles 12A having a length T1 and a brush bristles 12B having a length T2 smaller than the length T1. In the circumferential direction of the head 14, the brush bristles 12A are provided within a range of 180 degrees, and the brush bristles 12B are provided within a range of 180 degrees different from the range where the brush bristles 12A are provided.

In the hair bundle 12 shown in FIG. 6B, the length T1 of the brush hair 12A is gradually changed as the position of the head 14 in the circumferential direction changes. In FIG. 6C, the length T1 of the brush bristles 12A is designed so that the shape of the outer peripheral edge of the bristles 12 is elliptical in a plane perpendicular to the center line A1.

The hair bundle 12 shown in FIG. 7 is an example in which the length T1 of the brush hair 12A is non-uniform in the longitudinal direction of the head 14. Therefore, in the plane in the direction along the center line A1, the shape of the tip of the hair bundle 12 is an uneven shape, a saw blade shape, or a wavy shape. FIG. 7 shows an example in which the number of convex portions of the hair bundle 12 is three, but the number of convex portions may be four or more. The hair bundle 12 of FIG. 7 is applicable to both the first embodiment and the second embodiment of the oral brush. Further, the hair bundle 12 of FIG. 7 is also applicable to at least one hair bundle 12 of FIGS. 6 (A), (B) and (C).

The oral brush 20 shown in FIG. 8 is an example in which the disinfectant solution can be discharged toward the oral cavity from the surface of the head 14 or the tip of the brush bristles 12A. A pump 28 is provided in the grip 21, and a transmission mechanism 31 for transmitting the rotational force of the output shaft 24 to the pump 28 is provided. A tank 29 is provided in the grip 21, and a disinfectant solution is housed in the tank 29. The disinfectant may be any of hypochlorite, iodine, alcohol and the like. A passage 30 is provided in the main body 11.

The passage 30 is connected to the discharge port of the pump 28 and is opened on the surface of the head 14. Further, the brush bristles 12A are provided with a fine passage (not shown) from the base to the tip, and the passage 30 is connected to the fine passage. The passage 30 is connected to the suction port of the pump 28 or the tank 29. When the pump 28 is driven, the disinfectant solution in the tank 29 is sucked into the pump 28, and the disinfectant solution discharged from the pump 28 is directed toward the oral cavity from at least one of the surface of the head 14 or the tip of the brush bristles 12A. Is discharged. The hair bundle 12 shown in FIG. 8 may be any of the hair bundles 12 shown in FIGS. 1, 6 (A), (B), (C), and 7.

In the oral brush 40 shown in FIG. 9A, the tubular portion of the grip 21 is made of a flexible material, for example, soft synthetic resin or synthetic rubber. A tank 29 is built in the grip 21, and the tank 29 is made of synthetic rubber. When the user pressurizes the outer surface of the grip 21 with a finger, the grip 21 and the tank 29 are elastically deformed, and the disinfectant liquid is discharged from the inside of the tank 29 and sent to the passage 30. The hair bundle 12 shown in FIG. 9A may be any of the hair bundles 12 shown in FIGS. 1, 6 (A), (B), (C), and 7.

In the oral brush 10 shown in FIG. 9B, the handle portion 13 and the head portion 14 are separately formed. The handle portion 13 is provided with the first engaging portion 40, and the head portion 14 is provided with the second engaging portion 41. The first engaging portion 40 and the second engaging portion 41 can be engaged with and disengaged from each other. That is, the handle portion 13 and the head portion 14 can be attached and detached.

The oral brush 10 shown in FIG. 9B is the first embodiment and the second embodiment, FIG. 5, FIG. 6 (A), (B), (C), FIG. 7, FIG. 8, FIG. 9 (A). ) Can be applied to any of. In the specific examples of FIGS. 5 and 8, the main body 11 may be detachable from the coupling 25. As described above, when the head portion 13 is detachable from the main body portion 11 or the main body portion 11 is detachable from the coupling 25, FIGS. 6 (A), (B), (C) and FIGS. The hair bundle 12 having the structure shown in 7 can be changed according to conditions such as the shape of the gingiva, the type of the target portion, and individual differences.

Further, in a plane perpendicular to the center line A1, at least a part of the main body portion 11, that is, the outer peripheral shape of the head portion 14 or the handle portion 13 may be polygonal as well as circular. For example, the outer peripheral shape of the head 14 or the handle portion 13 may be a quadrangle as shown in FIG. 10 (A), a hexagon as shown in FIG. 10 (B), or an octagon as shown in FIG. 10 (C). Further, the outer peripheral shape of the head portion 14 or the handle portion 13 may be an elliptical shape as shown in FIG. 10 (D). The hair bundle 12 shown in FIGS. 10 (A), (B), (C), and (D) is an example in which the shape of the outer peripheral end is circular, but the shape of the outer peripheral end of the hair bundle 12 is shown in FIG. 6 (A), (B), (C) may be any of the shapes shown.

The length of the brush bristles 12A, the thickness and material of the brush bristles 12A, and the shape of the outer peripheral edge of the bristles 12 can be arbitrarily changed and selected according to the intended use. Further, the lengths L1 and L2 can be arbitrarily changed and selected according to the intended use. Further, the oral brush described in the present embodiment is not limited to the one that cares for the human oral cavity, and may be the one that cares for the oral cavity of non-human animals such as dogs, cats, and horses. Further, the power supply 22 may supply the power of the AC power supply to the electric motor 23 instead of the DC power supply such as the primary battery or the secondary battery.

10, 20, 40 ... Oral brush 11 ... Main body 12A, 12B ... Brush bristles 13 ... Handle 14 ... Head 14A ... Outer surface 21 ... Casing 22 ... Power supply 23 ... Electric motor 29 ... Tank 30 ... Passage T1, T2 ... Length

Claims (11)

Shaft-shaped body and
A plurality of brush bristles that protrude outward from the outer peripheral surface of the main body portion and are provided over the entire circumference of the main body portion.
Oral brush. The oral brush according to claim 1, wherein the plurality of brush bristles have a uniform length protruding from the outer peripheral surface of the main body portion in a plane in the thickness direction of the main body portion. The oral brush according to claim 1, wherein the plurality of brush bristles have a non-uniform length protruding from the outer peripheral surface of the main body portion in a plane in the longitudinal direction of the main body portion. In the oral brush according to any one of claims 1 to 3, the plurality of brush bristles have a uniform length protruding from the outer peripheral surface of the main body portion in a plane in the longitudinal direction of the main body portion. There is an oral brush. In the oral brush according to any one of claims 1 to 3, the plurality of brush bristles have non-uniform lengths protruding from the outer peripheral surface of the main body portion in a plane in the longitudinal direction of the main body portion. An oral brush. In the oral brush according to any one of claims 1 to 5, a grip that supports the main body and a grip that supports the main body.
An electric motor provided on the grip and operating the main body when power is supplied,
A power supply unit provided on the grip and supplying electric power to the electric motor,
Oral brush. In the oral brush according to any one of claims 1 to 6.
The main body
The head provided with the plurality of brush bristles and
A handle portion that is connected to the head in the longitudinal direction of the main body and is detachable from the head.
Oral brush. The oral brush according to claim 6, wherein the main body is removable from the motor. In the oral brush according to any one of claims 1 to 8, a passage through which a disinfectant liquid discharged from at least one of the main body and the brush bristles passes.
A tank connected to the passage and containing the disinfectant solution,
Oral brush. The oral brush according to any one of claims 1 to 9, wherein the shape of at least a part of the outer peripheral surface of the main body is circular in a plane in the longitudinal direction of the main body. The oral brush according to any one of claims 1 to 9, wherein the shape of at least a part of the outer peripheral surface of the main body is polygonal in a plane in the longitudinal direction of the main body.

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