Nail file

Abstract

To provide a nail file by which it is possible to prevent clogging without frequently carrying out an operation of removing shavings from above a file face, and it is possible to effectively enhance grindability of rapidly grinding a nail.SOLUTION: A nail file includes a plate-shaped base material 10 and a plurality of through holes 20. Each of the plurality of through holes 20 is formed in the base material 10, and has openings 21 as a file face on both ends, respectively, and the shape of at least one of the openings 21 is a polygonal shape. The shape of one of the openings 21 on both ends of the through hole 20 is preferably the polygonal shape, and the shape of the other opening 21 is preferably a circular shape.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a nail file, and more particularly to a nail file which is less prone to clogging and which has both high grinding ability and operability for delicate finish polishing. [Background technology]

[0002] Nail files are not only attached to the prying plate of nail clippers, but also various nail files are commercially available as standalone nail files. Patent Document 1 describes a nail file in which groove-like file teeth are formed on a plate-shaped base material. According to the nail file described in Patent Document 1, for example, by providing file teeth with different roughness on both sides of the base material, it is possible to quickly grind nails with a single nail file and also to polish the nails as a finishing touch. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-114283 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the nail file described in Patent Document 1, nail shavings may accumulate on the teeth of the file, causing the teeth to become clogged. Therefore, in addition to the operation of grinding or polishing the nails, it is necessary to frequently remove the shavings from above the teeth of the file.

[0005] To provide a nail file that can prevent clogging without requiring frequent operations to remove shavings from above the file teeth, and can effectively increase the grinding power for quickly filing the nails, in order to solve the above problems. [Means for solving the problem]

[0006] The nail file disclosed in the present application comprises a plate-shaped base material 10 and a plurality of through holes 20. The plurality of through holes 20 are formed in the base material 10 and have openings 21 as file teeth at both ends, with at least one of the openings 21 being polygonal in shape.

[0007] In the nail file disclosed in the present application, of the openings (21) at both ends of the through hole (20), one of the openings (21) has a polygonal shape and the other opening (21) has a circular shape.

[0008] In the nail file disclosed in the present application, the base material (10) has a polishing region (30) on its surface in which the openings (21) are formed. The polygonal shape of the openings (21) is one selected from a triangle, a rectangle, and a hexagon, and the openings (21) having a shape of one of a triangle, a rectangle, and a hexagon are arranged so as to fill the polishing region (30) with a plane.

[0009] Furthermore, in the nail file disclosed in the present application, the polygonal shape of the openings (21) is a regular hexagon, and the openings (21) having a regular hexagonal shape are arranged in a honeycomb pattern in the polishing area (30).

[0010] Further, in the nail file disclosed herein, the substrate (10) is formed from 18-8 stainless steel. Effect of the Invention

[0011] The nail file according to the present invention can prevent clogging without requiring frequent operations to remove shavings from above the grooves of the file, and can effectively increase the grinding power for quickly filing the nails. [Brief description of the drawings]

[0012] [Figure 1] 1 is a perspective view of a nail file according to an embodiment of the present invention, seen from one side. [Diagram 2]FIG. 2 is a perspective view of the nail file according to the embodiment of the present invention, seen from the other side. [Diagram 3] 3(a) is an enlarged view of the parts indicated by the arrows A and B in Fig. 1. (b) is an enlarged view of the parts indicated by the arrows C and D in Fig. 2. (c) is a cross-sectional view taken along the line EE in Fig. 3(b). [Figure 4] 1 is a plan view showing a plurality of through holes that are regularly arranged, one of the openings having a regular hexagonal shape and the other openings having a circular shape. FIG. [Diagram 5] 1 is a plan view showing a plurality of through holes arranged regularly, one of which has an opening shaped like a square and the other has an opening shaped like a circle. FIG. [Figure 6] 1 is a plan view showing a plurality of through holes that are regularly arranged, one of the openings having a shape of an equilateral triangle and the other of the openings having a shape of a circle. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The nail file according to the embodiment of the present invention will be described in detail below with reference to the drawings. Note that the embodiment described below is a preferred specific example for carrying out the present invention, and therefore various technical limitations are imposed thereon, but the present invention is not limited to this embodiment unless otherwise specified in the following description to limit the invention. <Embodiment> Hereinafter, a nail file according to an embodiment of the present invention will be described with reference to Figs. 1 to 3.

[0014] Fig. 1 is a perspective view of a nail file according to an embodiment of the present invention, seen from one side. Fig. 2 is a perspective view of a nail file according to an embodiment of the present invention, seen from the other side. Fig. 3(a) is an enlarged view of the parts indicated by the arrows A and B in Fig. 1. Fig. 3(b) is an enlarged view of the parts indicated by the arrows C and D in Fig. 2. Fig. 3(c) is a cross-sectional view taken along the line EE in Fig. 3(b).

[0015] As shown in FIGS. 1 and 2, the nail file of the embodiment includes a plate-shaped substrate 10 and a plurality of through holes 20.

[0016] In this embodiment, the substrate 10 is made of 18-8 stainless steel, which is 18% Cr, 8% Ni, and the balance Fe, has a thickness of, for example, 0.5 mm, and has a suitable degree of flexibility such that it bends slightly when force is applied.

[0017] As shown in FIG. 3, a plurality of through holes 20 are formed in the base material 10, and have openings 21 as file marks at both ends. The openings 21 are opened so as to be concentrated in a polishing region 30 shown in FIG. 1 and FIG. 2, which is a certain region on the surface of the base material 10. In the embodiment, two types of through holes 20, a plurality of first through holes 20A and a plurality of second through holes 20B, are formed in the base material 10 as the plurality of through holes 20. As shown in FIG. 3(c), the radial size of the first through holes 20A is larger than the radial size of the second through holes 20B.

[0018] In the embodiment, the shape of one of the openings 21 at both ends of the plurality of through holes 20 is a regular hexagon, which is a type of polygon, and the shape of the other opening 21 is a circle. In consideration of ease of manufacture, the polygon shape of the openings 21 is preferably a regular polygon that can fill the plane of the polishing region 30 with one type of shape, and is preferably one of an equilateral triangle, a square, and a regular hexagon.

[0019] 1 to 3, among the openings 21 at both ends of the plurality of first through holes 20A, one opening 21A having a regular hexagonal shape opens into the first polishing region 30A, and the other opening 21B having a circular shape opens into the second polishing region 30B. Moreover, among the openings 21 at both ends of the plurality of second through holes 20B, one opening 21C having a regular hexagonal shape opens into the third polishing region 30C, and the other opening 21D having a circular shape opens into the fourth polishing region 30D.

[0020] Of the four polishing regions 30, the first polishing region 30A has a regular hexagonal shape and a relatively large opening 21A, thereby exerting the highest grinding force. The second polishing region 30B and the third polishing region 30C exert a medium grinding or polishing force, and the fourth polishing region 30D has a circular shape and a relatively small opening 21D, thereby exerting the smallest grinding force but being suitable for delicate finishing polishing.

[0021] As described above with reference to Figures 1 to 3, according to the nail file of the embodiment, the multiple through holes 20 have openings 21 as file teeth at both ends, and at least one of the openings 21 at both ends of the multiple through holes 20 has a polygonal shape.

[0022] When the openings 21 of the multiple through holes 20 are used as file marks, if the openings 21 are circular, the larger the diameter of the openings 21, the higher the grinding force for quickly filing the nail, similar to the case of making the groove-shaped file marks coarser.

[0023] However, in consideration of the strength of the file, the interval between adjacent openings 21 needs to be, for example, 0.1 mm or more. The number of openings 21 per unit area also greatly affects the grinding force, and if the number of openings 21 per unit area is too small, the grinding force will decrease even if the diameter of the openings 21 is increased.

[0024] Therefore, if the opening 21 is circular, there is a limit to how much the diameter of the opening 21 can be increased to increase the grinding force. According to the nail file of the embodiment, at least one of the openings 21 at both ends of the multiple through holes 20 has a polygonal shape, so that a higher grinding force can be obtained than with a circular opening 21.

[0025] In addition, according to the nail file of the embodiment, the openings 21 of the multiple through holes 20 are used as file teeth, so that nail shavings are discharged through the multiple through holes 20 and are less likely to accumulate on the file teeth, preventing clogging without the need to frequently remove shavings from above the file teeth.

[0026] 1 to 3, according to the nail file of the embodiment, among the openings 21 at both ends of the multiple through holes 20, one opening 21 has a polygonal shape and the other opening 21 has a circular shape. Therefore, with one nail file, a high grinding force can be obtained by one opening 21 having a polygonal shape, and delicate polishing for finishing can be performed by the other opening 21 having a circular shape.

[0027] 1 to 3, in the nail file of the embodiment, the polygonal shape of the openings 21 is at least one selected from a triangle, a rectangle, and a hexagon, and the openings 21 each having a shape of a triangle, a rectangle, or a hexagon are arranged to fill the polishing region 30. Therefore, for each shape, the number of openings 21 per unit area in the polishing region can be maximized, and the grinding force can be maximized.

[0028] Furthermore, in the nail file disclosed in the present application, the polygonal shape of the openings 21 is a regular hexagon, and the openings 21 having a regular hexagonal shape are arranged in a honeycomb pattern so as to fill the polishing area 30. Below, the polygonal shape of the openings 21 will be further considered with reference to Figs. 4 to 6.

[0029] Fig. 4 is a plan view showing a plurality of through holes arranged regularly, one of which has an opening shaped like a regular hexagon and the other has an opening shaped like a circle. Fig. 5 is a plan view showing a plurality of through holes arranged regularly, one of which has an opening shaped like a square and the other has an opening shaped like a circle. Fig. 6 is a plan view showing a plurality of through holes arranged regularly, one of which has an opening shaped like a regular triangle and the other has an opening shaped like a circle.

[0030] In FIG. 4, openings 21A are shaped as a regular hexagon circumscribing a circle with a diameter D1 that is larger than circular openings 21B by a certain amount of play, and openings 21A are arranged to fill the polishing area while maintaining a constant distance G1 between adjacent openings 21A.

[0031] In addition, in FIG. 5, the shape of opening 21E is a square circumscribing a circle with a diameter D1 that is larger than that of circular opening 21B by a certain amount of play, and openings 21E are arranged so as to fill the polishing area while maintaining a constant distance G1 between adjacent openings 21E.

[0032] Comparing Fig. 4 and Fig. 5, the opening 21A shown in Fig. 4, which has a regular hexagonal shape, allows for a greater number of openings 21 to be arranged per unit area than the opening 21E shown in Fig. 5, which has a square shape. In other words, the form in Fig. 5 has sparser file marks than the form in Fig. 4, and it is believed that the grinding force of the regular hexagonal opening 21A in Fig. 4 is higher than that of the square opening 21E in Fig. 5.

[0033] In addition, in FIG. 6, the shape of opening 21F is an equilateral triangle circumscribing a circle with a diameter D1 that is larger than the circular opening 21B by a certain amount of play, and openings 21F are arranged so as to fill the polishing area while maintaining a constant distance G1 between adjacent openings 21F.

[0034] Comparing Figures 5 and 6, the opening 21E shown in Figure 5, which has a square shape, allows for a greater number of openings 21 to be arranged per unit area than the opening 21F shown in Figure 6, which has an equilateral triangle shape. In other words, the form in Figure 6 has sparser file marks than the form in Figure 5, and it is believed that the grinding force is higher for the square opening 21E in Figure 5 than for the equilateral triangular opening 21F in Figure 6.

[0035] In summary, the square openings 21E can be arranged more densely than the equilateral triangular openings 21F, and the regular hexagonal openings 21A can be arranged more densely than the square openings 21E. Therefore, by making the shape of the openings 21 regular hexagonal and arranging the openings 21 in a honeycomb pattern so as to fill the polishing area 30, it is expected that the grinding force can be maximized and the grinding force can be increased more effectively.

[0036] As described with reference to Figs. 1 to 3, the base material 10 of the nail file of the embodiment is made of 18-8 stainless steel. Therefore, the nail file can be washed with water and kept clean. In addition, the base material 10 can be given a suitable degree of flexibility so that it bends slightly when force is applied, and when polishing nails for finishing, delicate operations that cannot be performed with a general nail file that has no flexibility can be performed, and the operability of the nail file can be improved.

[0037] The embodiments of the present invention have been described above with reference to the drawings (FIGS. 1 to 6). However, the present invention is not limited to the above-described embodiments, and can be embodied in various forms without departing from the spirit of the present invention (for example, the following (1) to (3)).

[0038] (1) In the above embodiment, all the through holes are regularly arranged so as to fill the polishing area, and the number of openings per unit area is maximized. The present invention is not limited to this, and includes openings arranged irregularly. The present invention may also include openings arranged irregularly, but in this case, the interval between adjacent openings cannot be made constant, and it is considered difficult to put it into practical use as a nail file with a good feel.

[0039] (2) In the above embodiment, in consideration of ease of manufacturing, regular polygons that can be filled in a plane (equilateral triangle, square, regular hexagon) are used as examples of the polygons that are the shapes of the openings. However, this is not limited to this, and polygons of any shape and size can be used as the polygons that are the shapes of the openings, and triangles and quadrangles of any shape and size can be used as the polygons that can be filled in a plane.

[0040] (3) In the above embodiment, in consideration of ease of manufacture, the opening shape is one type of polygon, but two or more types of polygons may be used as the opening shape for one nail file. [Explanation of symbols]

[0041] 10...Base material 20(20A, 20B)...Through hole 21(21A, 21B, 21C, 21D, 21E, 21F)...Opening 30(30A, 30B, 30C, 30D)…Polishing area

Claims

1. A plate-shaped substrate (10); A plurality of through holes (20) are formed in the substrate (10), have openings (21) as file marks at both ends, and at least one of the openings (21) is polygonal in shape. A nail file comprising:

2. The nail file according to claim 1, wherein one of the openings (21) at both ends of the plurality of through holes (20) has a polygonal shape and the other opening (21) has a circular shape.

3. The substrate (10) has a polishing region (30) on its surface in which the opening (21) is formed, The nail file according to claim 1 or 2, wherein the polygonal shape of the opening (21) is one selected from a triangle, a rectangle, and a hexagon, and the openings (21) having a shape of one of a triangle, a rectangle, and a hexagon are arranged so as to fill the polishing area (30).

4. The nail file according to claim 3, wherein the polygonal shape of the openings (21) is a regular hexagon, and the openings (21) having a regular hexagonal shape are arranged in a honeycomb pattern in the polishing area (30).

5. The nail file of claim 4, wherein the substrate (10) is formed from 18-8 stainless steel.

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