JPH06169812A - Nail clipper device - Google Patents

Abstract

PURPOSE: To prevent the damage of a soft tissue around a nail by providing a nail clipper with a blade means consisting of a rod having a helical groove on the circumferential surface in which the hole of a circular section is penetrated, and that the blade means is rotatable in the hole of a tubular casing having a slot-shaped opening in a size capable of inserting the edge portion of a nail. CONSTITUTION: A nail clipper 1 includes a hole 11 having a circular cross-section penetrated into a tubular casing 10 in the axial direction. A slot-shaped opening 12 is provided on a straight line toward the axial direction in the wall of the casing 10, and the size of the slot-shaped opening 12 is a size for inserting the edge of the human's nail. The opening 12 provides a sharpened edge 13 in the longitudinal direction, and a wall 14 demarcated by the edge provides a vertical edge against the line of connecting the opposed edge in the longitudinal direction of the inside of the slot 12. The blade means including a rod 15 having a helical groove 16 separated by three equal angles and a base portion 17 between them is rotatably provided in the hole 11, and pivoted to the bushs 18, 19 of the opposed end portion of the casing 10.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a nail clipper for a human nail.

[0002]

2. Description of the Related Art Conventional nail clippers use nail clippers or nail clippers.

[0003]

Neither method can be used with equal ease on both hands. Both are difficult to operate, even if not, with a weaker hand, for example, when operated by an elderly person, the result is a rough finish that preferably requires subsequent use of nail files, It can cause damage to the soft tissues around the nail. Another drawback is that the nail pieces that are to be collected after cutting the nails often fly uncontrollably.

An object of the present invention is to provide, at least to some extent, a nail clipper that can solve the above problems.

According to the invention, (i) a tubular casing having a hole of circular cross-section penetrating therethrough; (ii) rotatable in the hole of the casing and having at least one helical groove on its circumference. Blade means including a rod and at least one edge of the groove being sharpened; (iii) a slot provided in the wall of the casing, the size of which allows insertion of an edge of a human nail And (vi) there is provided a nail clipper comprising a further slot-like opening in the wall of the casing for removing the portion of the nail removed by the blade means.

The two slot-shaped openings may face each other at diametrically opposite positions.

The first-mentioned slot-like opening has a sharpened edge for cooperating with one or more sharpened edges of the blade means and is defined by that edge. The wall may have one edge that is perpendicular or substantially perpendicular to the line joining the opposite longitudinal edges inside the slot.

The outer circumference of the casing may be circular.

The blade may have three of the grooves with three bases between them.

The blades may be pivotally mounted on bushings at each of the opposite ends of the casing.

The blade may be driven by a battery powered electric motor.

A transmission device may be provided between the motor and the blade.

The blade may rotate at a speed in the range of 500 to 850 revolutions per minute.

The casing may be stretched between opposing arms of a C-shaped housing with the extraction slot communicating with a compartment for collecting the removed claw portion.

The present invention will be further clarified by the following description with reference to the reference numbers in the accompanying drawings. The drawing shows, by way of example only, one form of a nail clipper of an embodiment of the present invention.

FIG. 1 shows a rear view of the device.

FIG. 2 shows a cross-sectional view of the device of FIG.

FIG. 3 shows an exploded perspective view of the casing and blade means of the apparatus of FIGS.

FIG. 4 shows a front view of the tubular casing of the device of FIGS.

FIG. 5 shows a rear view of the casing of FIG.

FIG. 6 shows a cross-sectional view of the tubular casing of FIGS. 4 and 5.

Referring to the drawings, the nail clipper device of the present invention is
In essence, it will be clear that the hole 11 having a circular cross section comprises a tubular casing 10 (see in particular FIG. 3) which penetrates axially. The outer periphery of the casing 10 also has a circular cross section.

The wall of the casing 10 is first provided with a slot-like opening 12 which is linear in the axial direction and which is sized to allow the edges of a human nail to be inserted.
This opening 12 has one sharpened longitudinal edge 13 whose wall 14 is defined by the edge.
Has one edge that is perpendicular to the line connecting the opposite longitudinal edges of the.

This portion has been found to be particularly effective in preventing the soft tissue around the nail from entering the interior of the hole 11.

A blade means comprising a rod 15 having three equiangularly spaced spiral grooves 16 and a base 17 therebetween is rotatably mounted in the bore 11 and is in the casing 10.
Is pivotally mounted on bushings 18 and 19 at opposite ends of the.

One edge of each groove 16 is sharpened and is configured to cooperate with the sharpened edge 13 of the opening 12.

Another slot-shaped opening 20 is provided at a position diametrically opposite to the slot-shaped opening 12 for discarding the portion of the pawl removed by the cutting or cutting action of the blade means 15.

The casing 10 and the blade means contained therein communicate the withdrawal slot-like opening 20 into a compartment 33 having a normally closed but removable access lid or hatch 34 to provide a conventional C-shaped housing. It is stretched between 32 opposing arm portions 30 and 31.

The housing 32 contains equipment for a battery 35 that can be replaced by means of a lid 38, which is output by means of an on / off switch 40 on the housing exterior, which allows the blade to be replaced. Means 15 are generally 37
It is operated via the gear train shown in.

The preferred rotation speed is 500 to 85 per minute.
It is in the range of 0 revolutions, which cuts the nail 25 to 42 times per second and there are three cutting edges on the blade means.

At these speeds, the nails are uniformly and smoothly cut, providing a finish equal to or better than that provided by conventional nail files.

Besides the gradual deceleration and suppressed nail penetration, a continuous strip base 17 protects.

The device is compact and can be easily carried in a pocket or purse.

Since the casing and blades are stretched across the top of the casing, the casing may be held by either hand and its front face away from the palm in order to cut the nails of the other hand. It is directed and there is no need to reverse the rotation of the blade.

It is not intended to limit the invention to the above examples, and many variations that would be readily apparent to one of ordinary skill in the art without departing from the scope of the invention. It is possible.

[Brief description of drawings]

FIG. 1 is a rear view of an apparatus according to an embodiment of the present invention.

2 is a cross-sectional view of the device of FIG.

3 is an exploded perspective view of a casing and blade means of the apparatus of FIGS. 1 and 2. FIG.

4 is a front view of a tubular casing of the device of FIGS. 1 and 2. FIG.

5 is a rear view of the casing of FIG.

6 is a cross-sectional view of the tubular casing of FIGS. 4 and 5. FIG.

[Explanation of symbols]

 10 ... Casing 12 ... Slot-shaped opening 15 ... Blade means 16 ... Groove 20 ... Take-out slot-shaped opening

Claims (11)

[Claims] 1. A tubular casing having a circular cross-section hole extending therethrough; (ii) a rod rotatable in the hole of the casing and having at least one helical groove on its circumferential surface. And (3) a blade means in which at least one edge of the groove is sharpened; And (vi) A nail clipper that is provided in the wall of the casing and includes another slot-shaped opening for taking out the portion of the nail removed by the blade means. 2. The nail clipper according to claim 1, wherein the two slot-shaped openings face each other at diametrically opposite positions. 3. The first-mentioned slot-like opening has one sharpened edge for cooperating with one or more sharpened edges of said blade means, the partition of which is 3. A nail clipper according to claim 1 or 2 having one edge which is perpendicular or substantially perpendicular to a line connecting opposite longitudinal edges inside the slot. 4. The nail clipper according to claim 1, wherein the outer circumference of the casing is circular. 5. The blade according to claim 1, wherein the blade has three grooves and three bases between them.
The nail clipper according to item. 6. The nail clipper according to claim 1, wherein the blade is pivotally attached to a bush at each of opposite ends of the casing. 7. The nail clipper according to claim 1, wherein the blade is driven by a battery-powered electric motor. 8. The nail clipper according to claim 7, wherein a transmission is provided between the motor and the blade. 9. The nail clipper according to claim 1, wherein the blade rotates at a speed in the range of 500 to 850 revolutions per minute. 10. The nail clipper according to claim 1, wherein the casing is stretched between opposing arm portions of a C-shaped housing. 11. The nail clipper according to claim 10, wherein said removal slot communicates with a compartment for collecting removed nail portions.