JP3234127U - Rotating roll type electric nail grinding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric nail polishing machine which can be used for both hands and feet, can operate a polished portion in a comfortable posture, can visually recognize a polished portion during operation, and does not cause discomfort to the polished portion. An electric nail grinding machine having a main body and a head 20, wherein the head has a polishing roll 201 that rotates about a rotation axis along a width direction of the main body. Further, the polishing roll can rotate from the front side to the back side of the claw 2 to be polished. In addition, it is an electric nail grinding machine dedicated to toenails, which has a long body. It has an electric motor that drives the polishing roll. [Selection diagram] Fig. 2

Description

The present invention relates to an electric nail grinder capable of polishing nails with a rotating roll. The term "polishing" here includes both the process of smoothing the surface and the process of sharpening and shaping the surface.

Tools for cutting, sharpening, and sharpening nails on limbs (so-called nail clippers) have been used for over 1000 years. In Japan, it is said that the scissors-type and nipper-type nail clippers appeared about 100 years ago, and the clipper-type nail clippers, which are currently the most popular, appeared about 80 years ago. The action of cutting the toenail with these nail clippers is not easy for the elderly and persons with disabilities who do not have easy movements and postures such as tilting the upper body forward, bending the legs, and pulling the legs toward the upper body. For this reason, there are frequent problems such as damaging the skin by pinching the nails without sufficiently visually recognizing the toes and hands, and not being able to sharpen the nails to the desired length. Nail clippers can be difficult to cut because they do not follow the shape or gaps of deformed or hardened nails.
An electric nail grinder is used as a tool for easily polishing the nails of the left and right hands in a short time regardless of the dominant hand. Today, electric nail grinders that are easy to carry are common. Such a portable electric nail grinding machine basically consists of a power switch, a battery, a motor, a motion conversion mechanism, and a polishing part, and when used, the polishing part vibrates at high speed in conjunction with the drive of the motor. Or rotate. The user polishes the nail surface by bringing a vibrating or rotating polishing part into contact with the nail surface.
An electric nail grinding machine that is easy to carry is described in Patent Document 1, for example. It's battery-powered and you can carry the whole thing anytime, anywhere. In each case, it is mainly assumed that the nail polishing machine gripped by one hand is used in contact with the other finger. Patent Document 1 describes that the toenail can also be polished, but in the typical example shown in the drawing, the toenail and the head are hidden by the grasped hand or handle, and it is difficult to see the polishing state. There is a problem that it is painful to polish the nails for a long time because the hands and feet are brought close to each other to make an unreasonable posture. As described above, the portable electric nail grinding machine is also not a convenient tool for toenail polishing.

Several toenail grinding machines have been proposed so far that have tried to solve the problem of toenail polishing. In the nail polishing machine described in Patent Document 2, the main body and the battery storage portion are separated so that the nail polishing machine can move in a narrow space between the toenail and the nail. However, even in this case, as long as the small body is gripped by hand and the nail polishing machine is moved, the toenail and head are hidden by the gripped hand and body, making it difficult to see the state of polishing, or it is impossible to bring the hands and feet close to each other. There remains a problem that long-time nail polishing is painful due to the poor posture.

Patent Document 3 describes that a slit or a corner portion convenient for polishing the toenail is provided in the polished portion, but in a typical example shown in the drawing, the polished portion and the gripped portion of the main body are close to each other. This does not solve the problem that long-term nail polishing is painful because the hands and feet are brought close to each other and the posture becomes unreasonable.

Patent Document 4 describes a nail polishing device that sharpens and polishes toenails in a comfortable posture without damaging the fingertips. In this nail polishing device, the foot is placed on a support plate, and the polishing machine is brought into contact with the toenail with the tip of the toe covered with a protective plate. Certainly, when using this nail polishing device, it is not necessary to bring the foot and hand close to each other and take a difficult posture, and the contact point between the polishing machine and the toes can be clearly seen. However, such a nail polishing device is large-scale and is not suitable for carrying at all. Further, there is a problem that the operation itself of such a nail polishing device is complicated.

In order to solve these problems, the applicant has proposed a foot-only nail sharpener that can be used in a comfortable posture in Patent Document 5. Since the main body of this foot-dedicated nail sharpener can be extended to a length unnecessary for the hand nail sharpener, the user can easily contact the polished portion with the toenail. The polished portion of this foot-dedicated nail sharpener reciprocates along the longitudinal direction of the main body. That is, the movement of going and the movement of returning are the opposite. For this reason, for example, the going movement is in the direction of pressing the nail from above and there is no discomfort, but the returning movement is in the direction of pushing up the nail from the finger, causing discomfort such as the nail being peeled off. May occur. Therefore, even with the foot-only nail sharpener proposed in Patent Document 5, it is necessary to further improve the usability.

Special Table 2018-524094 Japanese Unexamined Patent Publication No. 2014-180493 International Publication WO2010 / 064380 Pamphlet Japanese Unexamined Patent Publication No. 2004-436 Utility Model Registration No. 322268

Therefore, the present inventor tried to further improve the electric nail polishing machine. The present inventor has sought an electric nail grinding machine that can be used for both hands and feet, can operate the polished part in a comfortable posture, can visually recognize the polished part during operation, and does not cause discomfort to the polished part. rice field.

As a result, the present inventor has succeeded in solving the above-mentioned problems by renewing the motion mechanism of the polishing portion. That is, the present invention is as follows.
(Invention 1) An electric nail grinding machine having a main body and a head, wherein the head has a polishing roll that rotates about a rotation axis along the width direction of the main body.
(Invention 2) The polishing roll is the electric nail polishing machine of Inventor 1, which can rotate from the front side to the back side of the nail to be polished.
(Invention 3) The electric nail grinding machine of Inventor 1, which has a long main body and is exclusively for toenail.
(Invention 4) The electric nail polishing machine of Inventor 1 having an electric motor for driving the polishing roll.
(Invention 5) The electric toenail grinding machine of Inventor 1, which allows a user to polish his / her toenail in a comfortable posture and without the discomfort that the toenail is peeled off.

The polishing portion of the electric nail polishing machine of the present invention is a roll-shaped member that rotates about a rotation axis along the width direction of the grip portion. With such a mechanism, it is possible to continue polishing while pressing the nails of the limbs from the front to the back. Such polishing causes discomfort to the user and is bad.

Even when the electric nail grinding machine of the present invention is used for the toenail, the user can operate the electric nail grinding machine while visually observing the polished portion in a comfortable posture.

By adjusting the surface roughness and surface shape of the polished portion of the electric nail polishing machine of the present invention, the amount of polishing can be adjusted and the surface of the nail can be polished.

An example of the electric nail polishing machine of the present invention. A state of using an example of the electric nail polishing machine of the present invention. A state of using an example of the electric nail polishing machine of the present invention.

[Electric nail grinding machine]
The electric nail polishing machine of the present invention comprises a main body and a head to which a polishing roll is attached. Here, the "main body" refers to a portion that the user does not vibrate or move when the electric nail grinding machine is in operation, and is a portion that the user can grasp when the electric nail grinding machine is in operation. The "head" is a portion connected to the main body, and a polishing roll provided on the head rotates during operation of the electric nail polishing machine of the present invention. The head is connected to the end of the main body while the user is holding the electric nail grinding machine of the present invention, and is located farther than the main body with respect to the user. The user grips and moves the main body to determine the position of the head at the tip of the main body, particularly the polishing roll.
[Main body]
In the present invention, the size and shape of the main body can be freely changed as long as the operability is not impaired. The material of the main body is not limited as long as the operability of the main body is not impaired. Generally, a general-purpose plastic having a relatively low specific density and excellent moldability is used as the main material. The main body can be decorated by printing or vapor deposition.
A long, preferably longest body is suitable for polishing toenail. If the main body is long, the user can bring the head closer to the toes even when the gripped portion of the user and the toes are separated from each other. The user can operate the electric nail grinding machine of the present invention without suffering from an unreasonable posture. It is also possible to fix the dimensions of the main body to a long length and design the electric nail grinding machine of the present invention as a foot-only product.
The "long" in the present invention is much longer than the main body of the conventional nail grinding machine, specifically, it comes into contact with the toenail that the user tries to sharpen the head without difficulty while holding the main body. It means a length that can be used. In other words, the "long" of the present invention has a length exceeding the length assumed by the conventional nail polisher for limbs, and is not applicable to the conventional nail polisher which is supposed to be applied exclusively to the fingers. Unnecessary length. In this sense, the "long body" in the present invention is a feature that distinguishes the prior art from the present invention, and "long" is a clear definition in light of well-known techniques in the present technical field.

The user brings the polishing roll into contact with the toenail while grasping the main body. The polishing roll rotates at high speed by driving the head with a motor. In the present invention, a long main body having a fixed length may be integrated with the head, or the length of the long main body may be adjustable. The foot-only nail grinding machine of the present invention is also epoch-making in that it can take a mode in which the length of the main body can be adjusted. By setting the length of the main body to "long" specialized for toenail polishing, the polishing roll can be brought into contact with the toenail while holding the main body in a comfortable posture.

In the present invention, the dimensions and shape of the main body may be adjustable so that the hands and feet can be used properly. The mechanism for adjusting the length of the main body is not limited as long as the strength and operability of the main body, ease of gripping, and a certain degree of design can be ensured. For example, connection or disconnection of attachment members, feeding or encapsulation of nesting members, movement of slide members, etc. are used. With such an adjustment mechanism, when the devised foot nail grinding machine is not used, it is convenient to carry and store it if it is miniaturized.
When polishing fingernails, a short, preferably shortest body is suitable. If the main body is short, the gripped portion of the user becomes closer to the nail to be polished, and the user can finely adjust the position of the polishing roll as if the nail is polished by the gripping hand.
When the length of the main body is increased by at least 5 cm, approximately 10 cm or more from the shortest state, a main body having a long size suitable for toenails can be realized. The user grasps the extended long body in an appropriate posture (for example, sitting on a chair, cross-legged, sitting on the floor and stretching his legs forward), and heads to his toes without leaning forward. Can be brought closer, and the position of the head can be maintained and moved in a comfortable posture. The "shortest state" referred to here usually refers to the length of the main body containing the motor for rotating the polishing roll described later, the battery for driving the motor in some cases, and the related wiring.
As the exterior body of the main body, materials that can be used for the exterior body of various home appliances can be used without limitation. As for the molding method of the main body, any method applicable to home appliances can be used without limitation. A grip mechanism for facilitating grip can be added to the main body. As such a grip mechanism, a recess or a constriction for hanging a finger, embossing on the surface of the main body, a grip portion made of a flexible material such as elastomer or rubber can be used.

[head]
The electric nail polishing machine of the present invention has a polishing roll that rotates about a rotation axis along the width direction of the main body. The polishing roll and the rotation shaft are arranged so as to be delivered to the tip end portion of the head along the width direction of the main body.

The polishing roll comprises a roll-shaped rotating member and a file layer provided on the outer surface of the rotating member. The rotating shaft is driven by an electric motor. The electric motor is driven by an external power source or a battery housed inside the main body. The moving mechanism such as a cam and the rotating shaft and the wiring interposed between the electric motor and the polishing roll follow known means for the rotational movement of the rod-shaped member.

The head may have a cover portion that covers a part of the outer surface of the polishing roll. By opening a part or more of the surface of the head, a part or more of the outer surface of the polishing roll is opened or exposed to the outside of the head. At the open or exposed portion of the polishing roll, the surface of the polishing roll comes into contact with the nail to be polished.

The present invention is designed so that the polishing roll can rotate in the direction of pressing the front and back of the nail while gripping the main body and bringing the head into contact with the nail to be polished. It is also possible to design so that the direction of rotation can be reversed according to the change of hands of the user and the positional relationship with the nail to be polished.

The dimensions of the polishing roll are not limited as long as the user can selectively contact the nail to be polished to polish a certain part. The diameter (thickness) of the polishing roll is generally 5 mm or more and 30 mm or less, preferably 10 mm or more and 20 mm or less. The length of the polishing roll (dimension in the width direction of the main body) is generally 20 mm or more and 100 mm or less, preferably 30 mm or more and 60 mm or less.

The material and surface roughness of the file layer are not limited as long as they can be used for nail polishing. As the abrasive material constituting the file layer, natural materials such as glass, various ceramics, metals, and wood materials can be used. The surface roughness of the file layer can be changed as appropriate. In particular, a file layer having various surface roughness defined in JIS B 0031 and JIS B 0601 having a surface roughness of 10 μm or more and 100 μm or less is preferable. From the viewpoint of finish and safety, the interval between the grooves of the file layer (pitch of the mountain and valley rows) is generally 0.5 mm or more and 2.0 mm or less, preferably 1.0 mm or more and 1.5 mm or less.
In the present invention, the method of forming the file layer on the polishing roll is not limited. Any method such as roughening the surface of the main body of the polishing roll or adhering a coating material made of an abrasive to the outer surface of the main body of the polishing roll can be adopted.

The rotation speed of the polishing roll can be adjusted as appropriate. The rotation speed may be made variable by operating a switch provided on the main body or the head portion.

The main body and the head may be removable, and one electric nail grinding machine may be provided with a plurality of heads having different polishing rolls. In this case, the user can replace the head according to the polished portion and the preference for the finish.

[accessories]
The electric nail grinding machine of the present invention can be attached with a case, a charger, cables, a battery, a cleaning tool for a polishing roll, etc. for easy storage and carrying.

An example of the present invention will be described with reference to the drawings. The drawings outline an example of the present invention. The present invention is not limited to the configuration shown in the drawings. The drawings do not show the actual dimensions and shapes, and details are exaggerated or omitted.

FIG. 1 shows an example of the electric nail polishing machine of the present invention. The electric nail grinding machine (1) is dedicated to the foot and has a long main body (10) and a head (20). The user can polish the toenail in a comfortable posture by bringing the long main body (10) close to the toes. The head (20) is connected to one end (101) of the main body (10) in the length direction. The other end (102) is thinner than the end (101) and there is a constriction (103) between the two ends (101, 102). The user can stably grip the entire main body (10) with the constricted portion (103). In the head (20), a part of the polishing roll (201) is exposed from the cover (202). A drive switch (30) of the polishing roll (201) is arranged on the main body (10). The user can operate the switch (30) while holding the main body (10).

FIG. 2 shows the relationship between the polishing roll (201) and the toenail (2) and toe (3) when the electric nail polishing machine (1) is used. FIG. 2 shows a cross section of the head (20) cut along the plane along the arrow in FIG. At the opening (4) of the head (20), the exposed polishing roll (201) comes into contact with the toenail (2). When the motor is driven, the polishing roll (201) rotates around the rotation axis (203) in the direction of the arrow. The rotating polishing roll (201) can polish the toenail (2) while pressing the toenail (2) from the front to the back. When the direction of rotation of the polishing roll (201) is opposite, the toenail (2) is pressed from the back to the front, that is, the toenail (2) is pressed in a direction to be peeled off from the toenail (3). This may cause discomfort and pain. The rotation direction of such a polishing roll (201) is not preferable for the toenail (2) at the position shown in FIG.

FIG. 3 shows a state in which the polished portion (5) is viewed from a user who is holding the main body (10) and polishing his / her own toenail (2). Since the polishing roll (201) rotates from the front to the back of the paper surface, the toenail (2) is pressed toward the pad of the finger, that is, in the direction of the arrow. The polished portion (5) can be visually recognized by the user, and safety is ensured.

The electric nail polishing machine of the present invention is characterized by including a polishing roll that rotates in a direction of pressing the nails of limbs from the front to the back. Due to this feature, the usability of the electric nail polishing machine of the present invention is improved.

The electric nail grinding machine of the present invention can be provided with a longer body. In this case, the electric nail polishing machine of the present invention functions as an electric nail polishing machine dedicated to the foot, and the user can avoid discomfort due to the rotation of the polishing roll and safely in a comfortable posture while visually observing the polished portion. You can polish your nails.

As described above, the present invention provides an electric nail grinding machine that is also effective for toenails and has further improved usability and safety. According to the present invention, it is possible to supply high quality products to the consumer electronics market.

1 Electric claw polisher 10 Main body 101 Main body end 102 Main body end 20 Head 201 Polishing roll 202 Cover 203 Rotating shaft 2 Claw 3 Finger 4 Head opening 5 Polishing part Fig. 2

Claims (5)

An electric nail grinding machine that has a main body and a head.
The head has a polishing roll that rotates about a rotation axis along the width direction of the main body.
Electric nail grinding machine. The polishing roll can rotate from the front side to the back side of the nail to be polished.
The electric nail grinding machine according to claim 1. The electric nail grinding machine according to claim 1, wherein the main body is long and is exclusively for toenail. Having an electric motor to drive the polishing roll,
The electric nail grinding machine according to claim 1. The user can polish his toenail in a comfortable posture and without the discomfort of peeling the toenail.
The electric nail grinding machine according to claim 1.

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