JP3428860B2 - Nail brush - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nail brush, and more particularly to a nail brush used for cleaning and massaging nails of hands and feet, fingertips, crotch of fingers and the like.

[0002]

2. Description of the Related Art Conventional nail brushes are used to clean the nails, fingertips, skin between fingers and fingers, palms, and the like, and the boundary between the tip and the tip of the nail and the base and the tip of the nail. Its main purpose is cleaning and removal of nail dust (hereinafter referred to as "cleanability"). In addition, brushing with a nail brush has a massage effect on the skin such as a fingertip or a palm, and this massage effect is also one of the purposes.

As a conventional nail brush, for example, Japanese Patent Laid-Open No.
Like the technology disclosed in Japanese Patent No. 57-156705, by devising the shape of the hole in which the bristle is planted, the hardness (“strain”) of the bristle is adjusted to maintain the cleanliness and feel. There are things that tried to improve.

[0004]

However, the bristle of such a conventional nail brush as described above has a tip shape that is flatly cut and aligned, or is simply rounded into a hemispherical shape. In some cases, it did not reach the space between the fingertips and the deep wrinkles on the skin, and dissatisfaction remained in the cleanability.

When the bristles having such a tip shape are brought into contact with the object to be brushed at an angle, the contact area becomes large and the stress is weakened. However, there was a problem that Furthermore, if the tip of the bristle is cut evenly, there is a problem that the skin may be damaged at the corners of the tip of the bristle by brushing.

In view of such conventional problems, the present invention is excellent in the cleanability of the skin of the nail and the fingertip, the cleanability of the boundary between the nail and between the nail and the fingertip, and the massage of the fingertip. The purpose is to provide a nail brush.

[0007]

Therefore, in the invention according to claim 1, a bristle bundle composed of a plurality of bristles is a nail brush in which a plurality of bristles formed in the bristling part are respectively bristled. Yes, the above bristle bundle has a tip
A plurality of first bristles formed so as to become thinner toward, and a plurality of second bristles formed in a tapered shape toward the tip and having a spherical portion at the tip,
The tip of the first bristles is located farther from the tufting holes than the tip of the second bristles, and a step of these tips is provided.
It is assumed that the difference d is set to 0.5 mm to 4.0 mm .

In the claw brush having such a structure, the first bristles formed in a taper shape toward the tip end enter into the fine gap, while the second bristles formed in the tip end portion in the spherical shape are used for the object. The contact area is small and becomes substantially constant even if the contact is made at various angles. And the second bristles
If the taper is formed toward the tip , only the tip having the spherical portion can be easily bent. And the second
There is a massage effect due to the spherical part of the bristle.

Furthermore, the step between the tip of the first bristles and the tip of the second bristles is 0.5 mm to 4.0.
mm , so cleaning efficiency and massage effect are efficient
To be demonstrated.

Further, in the invention according to claim 2 , by providing the flocked portion on the tip side plate surface of the plate-like body having a substantially beaded outer periphery whose base end side is wide and narrow toward the tip side, Form a nail brush that is easy to hold. Also, the contract
In the invention according to claim 3 , a hole penetrating the plate surface is provided on the base end side of the plate-like body, and the hole is put on a hook or the like installed on the wall surface so that the nail brush can be stored. .

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is (a) a plan view and (b) a side view showing an embodiment of a nail brush of the present invention.
FIG. 2 is a perspective view for explaining the relationship between the bristles and the plate-shaped body and the flocked portion in the present embodiment.

As shown in FIGS. 1 and 2, the nail brush 1 according to the present embodiment has a distal end side plate of a plate-like body 2 having a substantially beaded outer periphery whose base end side is wide and narrow toward the distal end side. A flocked portion 4 having a plurality of flocked holes 3 formed therein is formed on the surface, and a bristle bundle 5 composed of a plurality of bristles is flocked to each flocked hole 3. On the other hand, on the base end side of the plate-shaped body 2, there is provided a hole 8 having a diameter of about 20 mm which penetrates the plate surface. Here, the jewel shape refers to a shape in which one end side is widened toward the other end side and narrowed, and the whole is curved in a substantially C-shape or a U-shape. The material of the plate-like body 2 is not particularly limited, but it is transparent, inexpensive, excellent in durability, and easy to process, and polypropylene, polyethylene terephthalate (PET), polymethylmethacrylate (P
Resins such as MMA) are preferably used.

As shown in FIG. 2, the bristle bundle 5 has a plurality of first bristles 6 formed in a taper shape toward the tip, and a plurality of bristles 7 having a spherical portion 7a formed in the tip. The second bristles 7 of the first bristles 6 are located farther from the tufting holes 3 than the ends of the second bristles 7. It should be noted that, in FIG. 2, only one each of the first bristles 6 and the second bristles 7 is shown in order to clearly show the configuration of the bristle implanting part 4, but as shown in FIG. A plurality of first bristles 6 and a plurality of second bristles 7 are planted in all of the flocked holes 3.

The first bristles 6 to be planted in each of the flock holes 3
The material of the second bristles 7 is not particularly limited,
Polybutylene terephthalate (PBT), nylon (6-1
2, 6-10, 6-6), and a resin such as polypropylene are preferable. Further, the first bristles 6 and the second bristles 7 are, as shown in FIG.
The bristle 6 and one bristle in which the second bristle 7 is formed on the other end side are folded into two at the substantially center thereof, and the bent portion is held by the flat line 9 as shown in FIG. While being inserted, it is planted by being inserted into the hair-planting hole 3.

Although only one first bristle 6 and one second bristle 7 are shown in FIG. 2 for the sake of easy understanding of the structure, a plurality of bristles 6 and 7 are bundled when they are planted. And is planted in the hair hole 3. The first bristles 6 and the second bristles 7 of the present embodiment shown in FIG. 3 are formed in a taper shape that becomes thinner toward the tip.
The form of the second bristles 7 is a gentle arc as shown in FIG. 4 (a) , and the thickness of the non-tapered part is
It is formed to have a diameter of 0.25 mm . The spherical portion 7a formed at the tip of the second bristle 7 is shown in FIG.
It has a perfect spherical shape as shown in (3) and has a maximum outer diameter of 0.37 mm. Further, the height h of the first bristles 6 planted in the flocked holes 3 of the plate-shaped body 2 is 11 mm ±
The height d is 0.5 mm, and the step d between the tip of the first bristles 6 and the tip of the second bristles 7 is 2.5 mm.

Like the first bristles 6 shown in FIG . 3,
For forming a taper that becomes thinner toward the tip
Is performed by mechanical means such as polishing, or by chemical means such as chemical treatment .

[0017]

[0018]

First bristles 6 and second bristles 7
The thickness of the non-tapered part is 0.15 mm to 0.30 mm in diameter
When it is less than 0.15 mm, it is "strained"
Not only becomes too weak and deteriorates the massage property and the cleaning property, but it is also easy to be cut and wears severely, which causes a problem in durability. On the other hand, if it exceeds 0.30 mm, the "strain" becomes too strong and the massage property and the cleaning property are deteriorated.

From the relationship between the size of the bristle holes 3 and the thickness of the first bristle 6 and the second bristle 7, considering the massage property and the cleaning property, one bristle hole 3 is provided with the first bristle 6 and the second bristle 7. From 9 to 25
It is preferable to plant about this number. The tapered shape of the second bristles 7 is shown in FIG. 4 (c) when it is formed in a linear shape as shown in FIG. 4 (b), in addition to the shape shown in FIG. 4 (a) described above. Various shapes are used, such as a taper shape that is close to the tip end portion as shown in FIG. 4A, and a taper shape that is divided into two stages as shown in FIGS. 4D and 4E. be able to.

The second bridge is shown in FIGS.
A spherical portion 7a formed at the tip of the through hole 7 is shown.
However, the spherical portion 7a can be formed into various spherical shapes as shown in FIG.
In addition, as shown in FIGS. 5 (b) to 5 (c), a perfect spherical object having a different size or a vertically extended spherical object as shown in FIG. 5 (d) is formed. If so, then FIG.
Various forms can be used, such as when a flat spherical object is formed as shown in (e).

Here, in order to form the spherical portion 7a of the second bristle 7, the tip of the pre-tapered bristle is heated to form a spherical portion, or a spherical object is formed on the cylindrical bristle. After that, it can be performed by tapering with a mechanical means such as chemical treatment or polishing. The spherical portion referred to here means that the maximum outer diameter of the spherical portion in the lateral direction is formed larger than the outer diameter of the root portion of the spherical portion.

Further , the maximum outer diameter in the lateral direction of the spherical portion 7a formed at the tip of the second bristles 7 is 0.15 mm to
It is preferably 0.38 mm, and when it is less than 0.15 mm, a sufficient massage effect cannot be obtained, and
The effect of scraping off dirt and nail dust on the surface of the nails and fingertips cannot be obtained, and when it exceeds 0.38 mm, not only is it difficult to manufacture, but also the bristles bundle 5 becomes difficult to bend, making it impractical. I will end up.

[0024]

The size of each bristle hole 3 depends on the thickness and hardness of the first bristles 6 and the second bristles 7 to be flocked, but is preferably 1.2 mm to 2.4 mm in diameter. Then, it was set to 1.6 mm. If it is less than 1.2 mm, the “brush” of one bristle bundle 5 becomes too weak, and the massaging and cleaning properties deteriorate, and if it exceeds 2.4 mm, it becomes 1
The “brush” of the two bristle bundles 5 becomes too strong, which deteriorates the massage property and the cleaning property.

Further, it is preferable that the hair transplant holes 3 are regularly and evenly arranged, and that the intervals between them are preferably 1.2 mm to 3.0 mm in the vertical direction as indicated by P ₁ in FIG.
It is preferable that the lateral distance indicated by ₂ is 0.75 mm to 1.5 mm. In this embodiment, the interval P ₁ is 3.0 mm and the interval P is
₂ was set to 1.5 mm. If the interval P ₁ is less than 1.2 mm or the interval P ₂ is less than 0.75 mm, the adjacent bristle bundles 5
Since the bristles bundles 5 are too close to each other, the bristles bundle 5 are less likely to bend, and the overall “brush” becomes too strong, deteriorating the massage property and the cleaning property. On the other hand, when the interval P ₁ exceeds 3.0 mm or the interval P ₂ exceeds 1.5 mm, the adjacent bristle bundles 5 become too far apart, so that the bristle bundles 5 tend to bend and the overall “bush” is increased. It becomes too weak and the massage and cleaning properties deteriorate.

The area ratio of the plurality of hair-implanted holes 3 on the upper surface of the hair-implanted portion 4 is preferably 15% to 35%, and in the present embodiment, it was 20%. If this area ratio is less than 15%, the bristle bundles 5 on the hair-implanted portion 4 become sparse, and the "brush" as a whole becomes too weak, which deteriorates the massage property and the cleaning property. When the area ratio occupied by the hair-implanted holes 3 exceeds 35%, the bristle bundles 5 on the hair-implanted portion 4 become dense, and the "strain" as a whole becomes too strong, which deteriorates the massage property and the cleaning property.

The above-mentioned nail brush 1 fits in the hand by holding the belly of the thumb against the curved concave portion of the plate-like body 2 having a substantially beaded outer periphery, and holds it securely to hold the nail or fingertip. Etc. can be used for cleaning. Further, by grasping by passing a finger through the hole portion 8, it is possible to perform firmer grasping and brushing without slipping even when a cleaning liquid or the like is used. Further, after use, the nail brush 1 can be stored while being dried by hanging the hole 9 on a hook or the like installed on the wall surface.

FIG. 6 is a side view showing the first bristles 6 and the second bristles 7 during brushing according to this embodiment. As described above, the step d is formed between the tip of the first bristles 6 and the tip of the second bristles 7, and the step d is preferably 0.5 mm to 4.0 mm. By providing the step d, as shown in FIG. 6, the tip of the first bristles 6 is easily bent during brushing,
It feels good and can enter the narrow gap to scrape dirt and nail dust, and the spherical portion 7a of the second bristle 7 can massage the skin such as the fingertip.

If the step d is less than 0.5 mm, the tip of the first bristle 6 does not bend and the spherical portion 7 of the second bristle 7 does not bend.
At the same time as a, because it touches the nails, fingertips, etc., the feel is not improved,
Moreover, since it is difficult to enter the narrow gap, the cleaning performance cannot be improved. On the other hand, if the step d exceeds 4.0 mm, the second bristle 7 is obstructed by the tip of the first bristle 6, and a sufficient massage effect cannot be obtained.
Since the brushing is performed only with the weak first bristle 6, the cleanability cannot be improved.

Further, in the case of this embodiment, as described above, the bristles bundle 5 is formed by using the bristles having the first bristles 6 and the second bristles 7 formed at both ends and bending the bristles in two. Therefore, the first bristles 6 are large on one side of the bristle bundle 5, and the second bristles are large on the other side. Further, in all the bristle bundles 5, the fitting angles α (see FIG. 2) of the flat line 9 with respect to the longitudinal axis L of the claw brush are aligned.

The claw brush of this embodiment is configured as described above. According to the claw brush of this embodiment, the first bristles 6 are formed in a taper shape and the tip thereof forms the step d. Since it is projected more than the second bristle 7, only the tip is easily bent without weakening each "strain", and the nails or fingertips are contacted before the second bristle 7. This makes it easier to improve the tactile sensation when brushing, and the tip of the tip can enter a narrow gap to efficiently remove dirt and nail dust on the nails and fingertips. In addition, the tip of the first bristles 6 also has the effect of massaging the fingertips of the internails and nails that are difficult to massage.

According to the claw brush of this embodiment, the tip of the second bristle 7 is located below the tip of the first bristle 6, and the spherical portion 7a is formed at the tip. In addition to the above-mentioned effects by cooperating with the first bristles 6, it is possible to exert a good massage effect by the spherical portion 7a, and the spherical portion 7a
This allows you to scrape off dirt and nail stains on your nails and fingertips.
Also, by forming the second bristles 7 in a tapered shape, only the tip of the second bristles 7 can be easily bent without impairing the cleaning property and the massage property by the spherical portion 7a, and the tactile sensation can be improved. It can be better.

That is, the nail brush of the present embodiment is excellent in the tactile sensation given to the nails and fingertips during brushing, and is not only cleanable on the surfaces of the nails and fingertips, but also between the nails and the fingertips and the fine skin. It has excellent cleaning properties for narrow gaps such as wrinkles, and has excellent massage effects on the fingertips, including areas that are difficult to massage, such as between the nails and fingertips, and has all of these effects. Is.

Further, the first bristles 6 and the second bristles 7 are not integrally formed but are separately formed so that the number of the first bristles 6 and the number of the second bristles 7 in one bristle bundle 5 are equal to each other. It may be configured such that the numbers are not the same.

Further, the bristles bundle 5 has a first
The bristles having the bristles 6 formed therein and the bristles having the second bristles 7 formed at both ends may be formed by bending the bristles into two. Furthermore,
Bristles in which the first bristles 6 are formed on one end side and the second bristles 7 are formed on the other end side are bundled so that the numbers of the first bristles 6 and the second bristles 7 are equal on both sides, You may use what was folded in two. Other points can be appropriately changed without departing from the gist of the present invention.

It should be noted that the plate-like body 2 preferably has the above-mentioned shape having a substantially beaded outer periphery, but it may be any shape that can be easily grasped by hand, and is not limited to this shape. Absent. In addition to the nails and fingertips, the nail brush having the above-described configuration can be used for cleaning and massaging general body surfaces such as the scalp, and can also be used for cleaning clothes and leather products.

[0038]

As described above, according to the first aspect of the present invention.
According to the invention according to, it is formed so as to become thinner toward the tip.
First bristles that are can enter the fine gaps fine wrinkles or between the skin and nails and fingertips toward the tip
The second bristles, which are tapered and have a spherical portion at the tip, have a small contact area and a substantially constant contact area regardless of the angle at which the tip makes contact with the target, and the applied force is concentrated. To do. This has the effect of improving the cleanability of scraping dirt and nail dust. And the first bristle
The step between the tip of the needle and the tip of the second bristle is 0.5 mm ~
By setting the thickness to 4.0 mm, it is possible to achieve cleanability and massage effect.
The effect of being able to form a harmonious nail brush
There is a fruit.

Particularly, since the tip of the first bristle is disposed with a step so that the tip of the first bristle is located farther from the flocking hole than the tip of the second bristle, the tip of the first bristle having a narrow tip is the second bristle. As a result, the nails and fingertips are more likely to come into contact with the nails and the fingertips can enter the narrow gap without being interfered with by the second bristles. By providing the step at the tip of the bristle, there is an effect that each bristle can be surely brought into contact with the entire skin surface having fine irregularities.

Further, since the tip of the first bristle having a narrow tip comes into contact with the object before the second bristle, the tactile sensation when brushing is improved, and a comfortable stimulation is given to the fingertip to activate the blood flow. Has the effect of On the other hand, the second bristles have the effect that the spherical portion at the tip allows powerful massage without damaging the object.

Further, by forming the second bristles in a taper shape toward the tip, only the tip portion having the spherical portion is easily bent, and the tactile sensation is obtained without impairing the cleaning property and the massage property by the spherical portion. Has the effect that it can be improved.

According to the second aspect of the present invention, the hair-implanted portion is provided on the tip-side plate surface of the plate-like body having a substantially beaded outer periphery whose base end side is wide and narrow toward the tip end. There is an effect that it is possible to form a nail brush having a shape that is easy to hold by hand and easy to brush.

According to the third aspect of the present invention, by providing a hole portion penetrating the plate surface on the base end side of the plate member, the hole portion is hooked on a hook or the like installed on the wall surface, The effect is that the nail brush can be stored. Further, there is an effect that the nail brush can be firmly gripped by passing a finger through the hole portion and can be used without slipping even when a cleaning liquid or the like is used.

[Brief description of drawings]

FIG. 1 is a plan view and a side view showing an embodiment of a nail brush of the present invention.

FIG. 2 is a perspective view illustrating the relationship between the bristle and the plate-shaped body and the flocked portion.

FIG. 3 is a side view showing a bristle .

FIG. 4 is a side view showing various forms of a second bristle formed in a tapered shape.

FIG. 5 is a side view showing various forms of a spherical portion formed at the tip of the second bristle .

FIG. 6 is a side view showing the bristles during brushing.

[Explanation of symbols]

1 Claw Brush 2 Plate-like Body 3 Flocking Hole 4 Flocking Part 5 Bristle Bundle 6 First Bristles 7 Second Bristles 7a Spherical Part 8 Hole d (between the first bristles tip and the second bristles tip) Step

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satomi Hara 1-14-10 Kayabacho, Nihonbashi, Chuo-ku, Tokyo Kao Co., Ltd. (56) References Showa 56-6309 (JP, U) Showahei 4 -43129 (JP, U) Actually open 51-70680 (JP, U) Actually open 4-104924 (JP, U) Actual public 8-3885 (JP, Y1) (58) Fields investigated (Int.Cl . ⁷ , DB name) A45D 29/17 A46B 5/00 A46D 1/00 101

Claims (3)

(57) [Claims] 1. A bristle bundle comprising a plurality of bristles, each of which is a nail brush in which a plurality of bristles are formed in a bristling portion, and the bristles bundle has a tip end.
A plurality of first bristles formed so as to become thinner toward, and a plurality of second bristles formed in a tapered shape toward the tip and having a spherical portion at the tip,
The tip of the first bristles is located farther from the tufting holes than the tip of the second bristles, and a step of these tips is provided.
A nail brush having a difference d of 0.5 mm to 4.0 mm . 2. The nail brush according to claim 1 , wherein the flocked portion is a tip-side plate surface of a plate-like body having a substantially beaded outer periphery whose base end side is wide and narrow toward the tip end side. 3. The nail brush according to claim 1, wherein a hole portion penetrating the plate surface is provided on the base end side of the plate body.