JP5059466B2 - False nail - Google Patents

Description

  The present invention relates to an artificial nail having a long length in the central axis direction of the longitudinal direction, a high-grade shape, and excellent wearability and handleability.

  With the recent trend of nail art, artificial nails with various designs have been sold so that users can easily enjoy nail art by wearing them on their nails without having to make a custom order at a nail salon.

  This type of artificial nail is generally sold as a set containing ten types of artificial nails having different sizes. The size of the nail varies from person to person, but the above set is available in the above 10 sizes, so select and use the nail size that fits your 5 fingernail. It is comprised so that it can do (refer patent document 1).

  Such a conventional artificial nail has a dimension that is about twice as long as the width, but with a consumer preference for luxury goods and product premiums, the length is longer than before, In addition, an artificial nail having a high-quality contour has been demanded (see Patent Document 2).

  However, simply increasing the length of the artificial nail obstructs office work such as word processor operation, which causes problems in terms of wearability, and does not necessarily increase the sense of quality of the shape. In addition, when the conventional artificial nail is placed on a flat surface with the surface facing upward, almost the entire side edge of the artificial nail contacts this flat surface, so when gripping the side edge with a finger or tweezers It was difficult to handle and was inferior in handleability.

JP 2005-349183 A Japanese Patent Laid-Open No. 2005-81118

  In view of the above-described requirements and problems, an object of the present invention is to provide an artificial nail that has a long shape with a high-class feeling and that is excellent in wearability and handleability.

  As a result of intensive studies to achieve the above object, the inventors of the present invention have four edges that have a curved shape of the surface within a predetermined range and include side edges in the artificial nail having a longer length than before. It has been found that the object of the present invention can be achieved by forming a curved shape from the conventional one, and the present invention has been completed.

Thus, according to the present invention, the following inventions (1) to (6) are provided.
(1) An artificial nail made of a plastic molded body having a contour curved in a convex shape from the base portion toward the tip portion, satisfying the dimensional ratios of the following formulas (1) and (2) and having a flat surface An artificial nail, wherein the four edges are curved in a convex shape with a gap of a maximum height of 0.5 mm or more from this flat surface when placed.
1.02 ≦ L ₂ / L ₁ ≦ 1.08 (1)
2 ≦ L ₁ / W _p1 ≦ 3 (2)
In the above formula,
L ₁ is the shortest length along the longitudinal center axis of the artificial nail,
L ₂ is the circumferential length along the longitudinal central axis of the surface of the artificial nail,
W _p1 is the width of the base of the artificial nail.

(2) The artificial nail as described in (1) above, which further satisfies the dimensional ratios of the following formulas (3) and (4).
1.2 ≦ W _d2 / W _d1 ≦ 1.3 (3)
1.1 ≦ W _p1 / W _d1 ≦ 1.2 (4)
In the above formula,
W _d1 is the width of the tip of the artificial nail,
W _d2 is the circumference of the tip of the artificial nail,
W _p1 is the width of the base of the artificial nail.

(3) The tip width (W _d1 ) is in the range of 6 mm to 12 mm, and the shortest length (L ₁ ) along the central axis in the longitudinal direction is in the range of 19 mm to 29 mm. The artificial nail as described in (1) or (2) above, comprising a set of ten different artificial nails.

(4) The artificial nail as described in (3) above, wherein the shortest length (L ₁ ) along the central axis in the longitudinal direction is in the range of 19.5 mm to 28.5 mm.
(5) The artificial nail according to any one of (1) to (4), wherein the surface is decorated.
(6) The artificial nail according to any one of (1) to (5), wherein an adhesive is applied to the back surface of the base.

According to the present invention, by setting the ratio L ₁ / W _p1 in the above range, the ratio L ₂ / L ₁ is set in the above range after setting the length of the artificial nail to a predetermined length range. By defining the curved shape in the longitudinal direction within a predetermined range, and by making the four edges including both side edges curved in a convex shape, there is a sense of quality even when it is long. Can be obtained.

  FIG. 1 is a schematic view showing a specific example of an artificial nail according to the present invention, and numeral 10 indicates the whole artificial nail and is made of a thin plate obtained by molding plastic. As shown in the plan view of FIG. 1 (a), the artificial nail 10 of the present invention has a substantially symmetrical shape with respect to the central axis in the longitudinal direction indicated by the alternate long and short dash line, and from both side edges in the width direction. It has a curved shape that protrudes smoothly toward the central axis in the longitudinal direction, that is, smoothly rises in an arcuate shape, and as shown in the side view of FIG. It has a curved shape that is convex, that is, arched upward.

The artificial nail 10 of the present invention has a longer shape than the conventional _artificial nail, and the shortest length L along the longitudinal central axis of the artificial nail with respect to the width W _p1 of the base 11 shown in FIG. ₁ ratio _L 1 _{/ W p1} is set in a range of _{2 ≦ L 1 / W p1 ≦} 3. As a result, a basic structure of a long artificial nail adapted to the recent consumer orientation of luxury goods is provided. The width W _p1 is determined based on the width of a normal human nail, and is usually a value between 6 mm and 14 mm.

As shown in FIG. 1A, the artificial nail 10 of the present invention has a planar shape slightly narrowed from the base portion 11 toward the distal end portion 12. Between the base part 11 and the front-end | tip part 12, a dimension reduces linearly or curvilinearly smoothly. For example, the ratio W _p1 / W _d1 of the width W _p1 of the base 11 to the width W _d1 of the tip 12 of the artificial nail 10 shown in FIG. 1A is 1.1 ≦ W _p1 / W _d1 ≦ 1.2. It is preferable that The width W _d1 is preferably set to a length shorter than W _p1 by about 1 mm to 2 mm. Specifically, the width W _d1 is preferably in the range of 6 mm to 12 mm. As a result, it is possible to obtain an artificial nail shape that is natural and highly aesthetic at the same time. The width W _p1 and the width W _d1 can be measured using a ruler or the like.

Further, as shown in FIG. 1 (d), the artificial nail 10 according to the present invention has a side surface shape that is convex in the longitudinal direction from the base portion 11 to the distal end portion 12, that is, smoothly curved into an arcuate shape. The degree of curvature is such that the ratio L ₂ / L ₁ of the circumferential length L ₂ of the surface 13 to the shortest length L ₁ along the longitudinal center axis of the artificial nail is 1.02 ≦ L ₂ / L ₁ ≦ 1.08, Preferably, it is formed so as to satisfy 1.03 ≦ L ₂ / L ₁ ≦ 1.07. Shortest length _{L 1} is generally preferably in the range of 19mm to 29 mm, and more preferably in the range of 19.5mm to 28.5 mm. As a result, not only a natural and highly aesthetic contour is obtained, but even when office work such as a word processor is performed with an artificial nail attached, it is prevented that the work is hindered. Incidentally, the shortest length L ₁ is mounted a nail 10 on a flat surface, the ends of the central longitudinal axis can be measured by sandwiching a caliper. Circumferential length L ₂ may be the surface 13 of the nail 10 along the longitudinal central axis by adhering a tape, cutting the tape at the ends of the artificial nails 10, for measuring the linear length of the cut tape Can be obtained.

Further, in the artificial nail 10 of the present invention, as shown in FIGS. 1 (b), (c) and (d), the four edges follow the shape of the surface 13, respectively, and are smoothly convex or arcuate. Therefore, when the artificial nail 10 is placed on a flat surface with its surface 13 facing upward, any of the four edges has a gap 15 between it and this surface. Form. According to the present invention, the maximum height (H _D , H _P , H _L ) of the gap 15 is 0.5 mm or more, preferably 0.7 mm or more and 1.5 mm or less. The gap 15 is formed not only at both ends of the artificial nail, but also under the side edge 14 of the artificial nail as shown in FIG. 1 (d). 14 can be picked up with fingers, tweezers can be inserted into the gap 15 and picked up easily, can be handled easily at the time of manufacturing and wearing, has excellent operability, and has a good fit with natural nails. Are better. The maximum height of the gap 15 can be easily determined by whether or not a mechanical pencil lead having a diameter of 0.5 mm, 0.7 mm, 0.9 mm, or the like can be inserted into the gap 15.

Further, as shown in FIG. 1C, the artificial nail 10 of the present invention has a ratio W _d2 / W of the peripheral length (W _d2 ) of the surface of the tip part to the width (W _d1 ) of the tip part of the _artificial nail. _d1 is preferably formed so as to satisfy the range of 1.2 ≦ W _d2 / W _d1 ≦ 1.3. Thereby, not only a natural and excellent aesthetic shape of the artificial nail is obtained, but also the strength of the tip of the artificial nail is kept constant. The circumferential length W _d2 is measured by measuring the linear length of the cut tape by attaching the tape to the surface 13 of the artificial nail 10 along the tip and cutting the tape at the edges on both sides of the artificial nail 10. Can be obtained.

The artificial nail of the present invention may be a set of artificial nails of various sizes that satisfy the above contour requirements. For example, the width W _p1 is 14 to 13 mm, 13 to 12.2 mm, 12.2 to 11.5 mm, 11.5 to 10.5 mm, 10.5 to 9.7 mm, 9.7 to 9.2 mm, 9. It may be a set of 10 kinds of artificial nails having different sizes such as 2 to 8.2 mm, 8.2 to 7.8 mm, 7.8 to 7.2 mm, and 7.2 to 6.5 mm. . As a result, five types of artificial nails that fit the size of the fingernails of most people can be included.

  The artificial nail of the present invention can be manufactured by molding a plastic material such as ABS resin or polypropylene resin by a molding method such as injection molding. The thickness of the molded body is preferably about 0.5 to 1 mm.

  The artificial nail of the present invention may be supplied in a colorless and transparent state called a so-called mold, or may be supplied in a state where the surface of the mold is decorated. On the back surface of the artificial nail of the present invention, an adhesive or a double-sided tape may be applied or pasted in advance so that it can be attached to the natural nail with one touch. As the adhesive, a cyanoacrylate adhesive, a vinyl acetate acrylate adhesive, or the like can be used. Further, the artificial nail and the adhesive may be bundled and supplied as a set.

  Next, specific examples of the present invention will be described, but the present invention is not limited to the specific examples.

  Ten different types of artificial nails (thickness 0.5 to 0.7 mm) shown in Table 1 were produced by injection molding using ABS resin according to a conventional method. Both satisfy the dimensional ratios of the present invention.

In any artificial nail, the four edges are curved, and even when placed on a flat surface, the core of a mechanical pencil with a diameter of 0.7 mm can be easily passed through the gap 15 of any edge, # except gap 15 of the tip 9, the core pencil of any margin of diameter 0.9mm to gap 15 can be easily passed, in any of the artificial nail, the maximum height (H _D , _H P, _{H L)} was confirmed to be at 0.5mm or more. Therefore, by placing a finger on the gap 15 shown in FIG. 1, handling can be performed more easily than conventional products, and mounting is also easy. In addition, each of the artificial nails was longer than the conventional product, but it had a good fit with the natural nails, and word processor work could be performed in the same manner as the conventional product.

  The artificial nail of the present invention can be used not only for personally enjoying nail art but also for makeup at a nail salon, and can be used in the fields of beauty and cosmetics.

(A) is a plan view showing the artificial nail of the present invention, (b) is an end view of the base of the artificial nail shown in (a), and (c) is an end view of the tip of the artificial nail shown in (a). (D) is a right side view of the artificial nail shown in (a) (the left side view appears symmetrically with the right side view).

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... False nail | claw, 11 ... Base part, 12 ... Tip part, 13 ... Surface, 14 ... Edge, 15 ... Crevice.

Claims (6)

An artificial nail made of a plastic molded body having a convexly curved contour from the base portion toward the tip portion, and satisfying the dimensional ratios of the following formulas (1) and (2) and placed on a flat surface An artificial nail characterized in that sometimes four edges are curved in a convex shape with a gap of 0.5 mm or more from the flat surface.
1.02 ≦ L ₂ / L ₁ ≦ 1.08 (1)
2 ≦ L ₁ / W _p1 ≦ 3 (2)
In the above formula,
L ₁ is the shortest length along the longitudinal center axis of the artificial nail,
L ₂ is the circumferential length along the longitudinal central axis of the surface of the artificial nail,
W _p1 is the width of the base of the artificial nail. Furthermore, the artificial nail | claw of Claim 1 which satisfies the dimension ratio of following formula (3) and (4).
1.2 ≦ W _d2 / W _d1 ≦ 1.3 (3)
1.1 ≦ W _p1 / W _d1 ≦ 1.2 (4)
In the above formula,
W _d1 is the width of the tip of the artificial nail,
W _d2 is the circumference of the surface of the tip of the artificial nail,
W _p1 is the width of the base of the artificial nail. 10 types of different sizes from each other in which the width (W _d1 ) of the tip is in the range of 6 mm to 12 mm and the shortest length (L ₁ ) along the central axis in the longitudinal direction is in the range of 19 mm to 29 mm The artificial nail according to claim 1 or 2, comprising a set of artificial nails. The artificial nail according to claim 3, wherein the shortest length (L ₁ ) along the longitudinal central axis is in a range of 19.5 mm to 28.5 mm. The artificial nail according to any one of claims 1 to 4, wherein the surface is decorated. The artificial nail according to any one of claims 1 to 5, wherein an adhesive is applied to the back surface of the base portion.

Images