EP0463130B1 - Device for punching holes in artificial fingernails - Google Patents

Device for punching holes in artificial fingernails Download PDF

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Publication number
EP0463130B1
EP0463130B1 EP91901266A EP91901266A EP0463130B1 EP 0463130 B1 EP0463130 B1 EP 0463130B1 EP 91901266 A EP91901266 A EP 91901266A EP 91901266 A EP91901266 A EP 91901266A EP 0463130 B1 EP0463130 B1 EP 0463130B1
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EP
European Patent Office
Prior art keywords
piston
hollow cylinder
cylinder
edge
fingernail
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP91901266A
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German (de)
French (fr)
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EP0463130A1 (en
Inventor
Karl Sutterlin
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MUELLER, MAX
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Mueller Max
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Publication of EP0463130A1 publication Critical patent/EP0463130A1/en
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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D31/00—Artificial nails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/32—Hand-held perforating or punching apparatus, e.g. awls

Definitions

  • the present invention relates to a device for punching a round hole with a saddle-shaped edge into the all-round curved surface of the front area of an artificial fingernail .
  • They are glued to the natural nails and are intended to contribute to a well-groomed appearance of the wearer's fingers.
  • Such artificial fingernails are usually very long and then protrude about 5 to 15 mm beyond the fingertip.
  • Artificial nails have become known which are made of transparent plastic and include a magnifying glass made in one piece from this plastic material in the tip of the fingernail. Such a magnifying glass acts as jewelry and can also serve as a reading aid. This idea stimulated the desire to wear even more expensive and actual pieces of jewelry made of separate material as an ornament on the tips of the artificial fingernails.
  • the wearer wants to paint the artificial fingernails in a color that matches the tone of your other make-up or your clothes, the fingernails must be painted at home. It is best to punch the nails after painting because of the problem outlined above. This creates a very clean hole edge, so that the piece of jewelry can be inserted effortlessly and the paint is no longer damaged.
  • a nail clipper which essentially consists of a piston-cylinder unit.
  • the piston is spring-loaded in the cylinder and axially displaceable by pushing it in from the outside.
  • the cylinder and the piston have an approximately crescent-shaped to crescent-shaped cross section, the inner, slight curvature forming the sectional shape.
  • the cylinder wall has a slot with a curved cross section through which the outside Fingernail is insertable.
  • the tip of the piston is designed on one side as a knife, the edge of which, like the knife of a guillotine (Quillotine), runs at an oblique angle to the curved slot.
  • This nail clipper allows you to cut the edges of your fingernails, but not punch holes in them.
  • a punch for fingernails or toenails has become known, which is designed as pliers with two arms and a lever arm additionally acting on one arm.
  • Punching tools are attached to the front of the pliers, which can be used to punch a small hole in a fingernail.
  • the holes to be punched are so small that the curvature of the nail is practically insignificant, so the edge of the hole is almost in one plane.
  • FIGS. 1a and 1b initially show an artificial fingernail 8 with a jewelry insert inserted therein in a side view for a better understanding of the invention seen here.
  • a jewelry insert is inserted into a prepared hole in the fingernail 8. It is pushed from below with its upper part through the hole in fingernail 8. Because it has an edge 3, 6 at the top and bottom, between which a groove 7 is formed, it is ensured that the piece of jewelry is held securely in the hole.
  • the jewelry insert is usually inserted into the nail 8 on the little finger, since it is least stressed there and the nail 8 of the little finger also has the most delicate effect.
  • jewelry inserts can also be made, the edge curvature of which is larger and which are then suitable for being inserted into the flatter-shaped fingernails for the other fingers, even for the thumbs. It can be seen here that the edges 3, 6 of the upper part 2 and base foot 5 of the jewelry insert are nicely aligned with the nail curvature and therefore the jewelry insert is held securely in the nail hole. Between the upper part 2 and the base foot 5 there is a cylindrical base 1, the diameter of which fits exactly into the hole in the fingernail 8.
  • the jewelry insert can also be designed as a magnifying glass. Its upper part, as well as the base and base base are then hollow cylindrical through a central bore, and a small magnifying glass is inserted into the interior of this cylinder.
  • this acts as jewelry, for example, the upper part forms a beautifully decorated edge for the magnifying glass.
  • the magnifying glass may be helpful in deciphering the small print. You then only have to run your finger over the text and recognize it the letters are magnified through the magnifying glass.
  • the difficulty which the invention has to overcome now consists in making such a hole of a precisely defined diameter positioned as precisely as possible in an artificial fingernail, taking into account the fact that the fingernail is convex in cross section.
  • the invention solves this problem basically with a punch, the hole being created by punching.
  • Figure 2 shows an example of such a punch seen from the front. It essentially consists of a piston-cylinder unit.
  • the piston is designated 9 here, the hollow cylinder 10.
  • the piston 9 is advantageously made of plastic and its diameter fits into the hollow cylinder 10 so that it is well guided in it.
  • the piston 9 is surmounted on all sides in the radial direction by a head 19, the upper side 20 of which is concave.
  • the piston tip 12 consists of a tube section made of metal, which is put over the slightly tapered end of the plastic piston. It has a sharp edge 13 ground as a knife. This edge 13 describes along the circumference of the piston tip a curve similar to two contiguous S-curves.
  • the two tips 14 thus formed are diametrically opposite one another.
  • This transverse hole 11 is intended for receiving the fingernail to be punched.
  • Its curvature 15 corresponds approximately to the transverse curvature of the fingernail in the area of the point to be punched.
  • the side wall of the hollow cylinder is concavely shaped in the area 16 below the transverse hole 11.
  • the fingernail to be punched is namely glued to the natural fingernail beforehand and afterwards the artificial fingernail is already attached to the finger and pushed into the transverse hole 11, the fingertip resting comfortably in the concave region 16.
  • the hollow cylinder 10 has on its lower side a base 17 which projects beyond the hollow cylinder 10 in the radial direction.
  • the underside of the base 17 has two concave indentations 18, which give the fingers 22, 23 hold for holding the punch.
  • the punch is actuated so that the thumb 21 of the actuating hand presses on the head 19 of the piston 10, while the index 22 and middle finger 23 of the same hand hold the base 17 on the hollow cylinder 10. In the view shown here, the thumb 21 and the index 22 and middle finger 23 of a right hand are indicated.
  • the fingernails of the left hand can then be punched. Conversely, if the left hand grips the punch in the same way, the nails on the right hand can be punched.
  • In the wall of the hollow cylinder 10 there are diametrically opposed blind holes 24 which run from above along the cylinder axis. Compression springs 25 are inserted into those blind bores 24, which on the underside of the head 19 of the piston 9 act. The piston 9 can therefore be pushed against the spring force of these compression springs 25 into the hollow cylinder 10, the sharp edge 13 of the piston tip 12 completely passing through the transverse hole 11. The curvature of the edge 13 extends to that 15 of the transverse hole 11 just rotated by 90 °.
  • the piston So that the piston remains in this position with its sharp edge 13 with respect to the transverse hole 11, it has a groove 26 in its wall, which runs along the piston axis.
  • the wall of the hollow cylinder 10 is penetrated by a grub screw 27, the tip of which protrudes into the groove 26 and on the one hand prevents rotation of the piston 9 in the hollow cylinder 10 and on the other hand limits the piston movement in the direction of the piston axis on both sides. Because, as described, the transverse hole 11 is curved on the one hand and the edge 13 of the piston tip 12 is equally curved, but these curvatures are rotated by 90 ° relative to each other, the tips 14 of the edge 13 first strike a fingernail held in the transverse hole 11.
  • Figure 3 shows the punch in an exploded perspective view. This illustration allows a better insight into the shape of the individual parts, in particular the piston 9 and the hollow cylinder 10. It can be clearly seen how the edge 13 of the piston tip 12, which acts as a cutting edge, is shaped. This edge describes a curve that resembles two connected S-curves. As a result, two rounded tips 14 are formed.
  • the piston 9 is secured in the hollow cylinder 10 by means of the groove 26 and the grub screw 27 such that the tips 14 of the edge 13 always face the zenith of the curvature 15 of the transverse hole 11 in the hollow cylinder.
  • the edge 13 then acts like a pair of scissors when the piston 9 is pushed down, when it passes through the transverse hole 11, with the edge of the cylinder bore on the surface 15.
  • the generated shear effect considerably reduces the force required for punching, so that the punch can be operated with one hand with ease.
  • the concave indentation 16 for receiving the fingertip of the finger provided with the fingernail to be punched can also be seen.
  • the artificial fingernail to be punched which has already been glued to the natural one, is pushed into the transverse hole for punching until the fingertip lies against the indentation 16.
  • the purpose of the curvature 15 is to ensure that the artificial Fignernail lies snugly on the surface for the purpose of punching, so that a clean cutting edge or punching edge can be produced.
  • Figure 4 finally shows the punch in a view from the side.
  • a finger with a nail 8 to be punched as it is placed on the punch.
  • the invention thus makes it possible in the simplest way to punch already glued-on artificial fingernails after painting in order to prepare them for receiving a jewelry insert.
  • the punch is very compact and can easily be carried in a handbag so that it is always at hand. Despite its compactness, due to its special structure, no large forces are required for punching.
  • the punch according to the invention therefore also enables delicate female hands to easily produce the desired punch holes.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Prostheses (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

PCT No. PCT/CH91/00005 Sec. 371 Date Nov. 7, 1991 Sec. 102(e) Date Nov. 7, 1991 PCT Filed Jan. 9, 1991 PCT Pub. No. WO91/10543 PCT Pub. Date Jul. 25, 1991.A device for punching holes in artificial fingernails comprising a piston-cylinder unit having a cylinder wall with an aperture in it extending across the whole of the cylinder. The aperture is banana-shaped in cross-section and wider than the internal diameter of the cylinder with the convex side of the aperture facing the piston. The pointed end of the piston has a sharp knife-edge. The hole punch is operated by holding it between the thumb and index and middle fingers and pressing, causing the pointed end of the piston to travel past the curved cylinder-wall aperture in which the artificial fingernail to be perforated has been placed.

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zum Stanzen eines runden Loches mit sattelförmigem Rand in die allseits gekrümmte Oberfläche des vorderen Bereiches eines Künstlichen Fingernagels gemäß dem Oberbegriff des Anspruchs 1. Solche künstlichen Fingernägel werden von der Kosmetikbranche in einer enormen Vielfalt verschiedener Formen, Farben und Grössen angeboten. Sie werden auf die natürlichen Nägel aufgeklebt und sollen zu einem gepflegten Erscheinungsbild der Finger der Trägerin beitragen. Solche künstliche Fingernägel sind in der Regel betont lang und ragen dann etwa 5 bis 15 mm über die Fingerspitze hinaus. Es sind künstliche Nägel bekanntgeworden, die aus transparentem Kunststoff gefertigt sind und eine einstückig aus diesem Kunststoffmaterial gearbeitete Lupe in der Fingernagelspitze einschliessen. Eine solche Lupe wirkt als Schmuck und kann auch als Lesehilfe dienen. Durch diese Idee angeregt entstand der Wunsch, auch teurere und eigentliche Schmuckstücke aus gesondertem Material als Verzierung auf den Spitzen der künstlichen Fingernägel zu tragen. Bisher klebte man hierzu geeignete Kleinode auf die Nägel. Das Aufkleben ist aber mit einem grossen Aufwand verbunden und es besteht die Gefahr, dass die Klebestelle nicht hält und das Schmuckstück verlorengeht. Vor allem wegen dieser Gefahr, das Schmuckstück zu verlieren, sind vom Erfinder der vorliegenden Vorrichtung kürzlich Schmuckstücke entwickelt worden, die in ein vorbereitetes Loch im Fingernagel eingesetzt werden können. Würden nun aber die Fingernägel mit fabrikmässig vorbereiteten Löchern angeboten, so entstünde bei deren Lackierung ein Problem, indem nämlich an den Lochrändern infolge der Kapillarität des Nagellacks Krusten entstünden, die einerseits das spätere Einsetzen der Schmuckstücke erschweren oder andrerseits beim Einsetzen des Schmuckstückes die Lackierung aufreissen würden. Da die Trägerin jedoch die künstlichen Fingernägel in einer Farbe bemalen möchte, die auf den Ton Ihres übrigen Make-up's oder Ihrer Kleidung abgestimmt ist, muss die Lackierung der Fingernägel zuhause erfolgen. Am besten ist es wegen des oben geschilderten Problems, die Nägel nach dem Lackieren zu lochen. Dadurch entsteht ein ganz sauberer Lochrand, sodass das Einsetzen des Schmuckstückes mühelos erfolgen kann und die Lackierung nicht mehr beschädigt wird.The present invention relates to a device for punching a round hole with a saddle-shaped edge into the all-round curved surface of the front area of an artificial fingernail . They are glued to the natural nails and are intended to contribute to a well-groomed appearance of the wearer's fingers. Such artificial fingernails are usually very long and then protrude about 5 to 15 mm beyond the fingertip. Artificial nails have become known which are made of transparent plastic and include a magnifying glass made in one piece from this plastic material in the tip of the fingernail. Such a magnifying glass acts as jewelry and can also serve as a reading aid. This idea stimulated the desire to wear even more expensive and actual pieces of jewelry made of separate material as an ornament on the tips of the artificial fingernails. So far, appropriate gems have been glued to the nails. But sticking is associated with a great deal of effort and there is a risk that the glue point will not hold and the piece of jewelry get lost. Mainly because of this risk of losing the piece of jewelry, the inventor of the present device has recently developed pieces of jewelry that can be inserted into a prepared hole in the fingernail. If, however, the fingernails were offered with factory-prepared holes, there would be a problem with their varnishing, namely that crusts would appear on the edges of the holes due to the capillarity of the nail polish, which on the one hand would make it more difficult to insert the jewelery later, or on the other hand would tear open the varnish when the jewelery was inserted . However, since the wearer wants to paint the artificial fingernails in a color that matches the tone of your other make-up or your clothes, the fingernails must be painted at home. It is best to punch the nails after painting because of the problem outlined above. This creates a very clean hole edge, so that the piece of jewelry can be inserted effortlessly and the paint is no longer damaged.

Aus der US-A-2'540'782 ist ein Nagel-Klipser bekanntgeworden, der im wesentlichen aus einer Kolben-Zylindereinheit besteht. Der Kolben ist im Zylinder federbelastet und durch Hineindrücken von aussen axial verschiebar. Der Zylinder und der Kolben weisen einen etwa halbmond- bis mondsichelförmigen Querschnitt auf, wobei die innere, leichte Krümmung die Schnittform bildet. Die Zylinderwand weist einen im Querschnitt gekrümmten Schlitz auf, durch den von aussen der Fingernagel einsteckbar ist. Die Kolbenspitze ist auf der einen Seite als Messer ausgebildet, dessen Rand ähnlich wie das Messer eines Fallbeils (Quillotine) schiefwinklig zum gekrümmten Schlitz verläuft. Dieser Nagel-Klipser ermöglicht das Schneiden der Fingernägelränder, nicht aber ein Stanzen von Löchern darin. Aus der GB-A-2'168'920 ist ein Locher für Finger- oder Zehennägel bekanntgeworden, der als Zange mit zwei Armen und einem zusätzlich auf den einen Arm wirkenden Hebelarm ausgebildet ist. An der Zangenvorderseite sind Stanzwerkzeuge angebracht, mittels derer ein kleines Loch in einen Fingernagel gestanzt werden kann. Die zu stanzenden Löcher sind aber so klein, dass die Krümmung des Nagels praktisch nicht ins Gewicht fällt, der Lochrand also annährend in einer Ebene liegt.From US-A-2'540'782 a nail clipper has become known, which essentially consists of a piston-cylinder unit. The piston is spring-loaded in the cylinder and axially displaceable by pushing it in from the outside. The cylinder and the piston have an approximately crescent-shaped to crescent-shaped cross section, the inner, slight curvature forming the sectional shape. The cylinder wall has a slot with a curved cross section through which the outside Fingernail is insertable. The tip of the piston is designed on one side as a knife, the edge of which, like the knife of a guillotine (Quillotine), runs at an oblique angle to the curved slot. This nail clipper allows you to cut the edges of your fingernails, but not punch holes in them. From GB-A-2'168'920 a punch for fingernails or toenails has become known, which is designed as pliers with two arms and a lever arm additionally acting on one arm. Punching tools are attached to the front of the pliers, which can be used to punch a small hole in a fingernail. The holes to be punched are so small that the curvature of the nail is practically insignificant, so the edge of the hole is almost in one plane.

Demgegenüber ist es die Aufgabe der vorliegenden Erfindung eine Vorrichtung zu schaffen, die es erlaubt, einen künstlichen Fingernagel im vorderen Bereich so zu lochen, dass in das Loch ein entsprechend geformter Schmuck-Einsatz mit sattelförmig verlaufendem Rand einsetzbar ist.In contrast, it is the object of the present invention to provide a device which allows an artificial fingernail to be punched in the front area in such a way that a correspondingly shaped jewelry insert with a saddle-shaped edge can be inserted into the hole.

Diese Aufgabe wird gelöst mittels einer Vorrichtung nach dem Oberbegriff des Patentanspruches 1 mit dessen kennzeichnenden Merkmalen.This object is achieved by means of a device according to the preamble of claim 1 with its characterizing features.

In den Zeichnungen ist vorerst ein mit einem Schmuckeinsatz versehener künstlicher Fingernagel in zwei Ansichten gezeigt, um das Verständnis für die Erfindung zu erleichtern. Weiter ist dann ein Ausführungsbeispiel der Erfindung gezeigt, das in der nachfolgenden Beschreibung im einzelnen beschrieben wird, wobei auch die Funktion der Vorrichtung erläutert wird.In the drawings, an artificial fingernail provided with a jewelry insert is initially shown in two views in order to facilitate understanding of the invention. Further Then an embodiment of the invention is shown, which is described in detail in the following description, wherein the function of the device is also explained.

Es zeigt:

Figur 1a, 1b
einen künstlichen Fingernagel mit eingesetztem Schmuckstück von der Seite und von vorne gesehen;
Figur 2
die Vorrichtung zum Lochen von vorne gesehen;
Figur 3
die Vorrichtung zum Lochen auseinandergenommen in Perspektive dargestellt ;
Figur 4
die Vorrichtung zum Lochen von der Seite gesehen mit einem zu lochenden künstlichen Fingernagel in der Bearbeitungslage.
It shows:
Figure 1a, 1b
an artificial fingernail with a piece of jewelry seen from the side and from the front;
Figure 2
the device for punching seen from the front;
Figure 3
the device for punching disassembled shown in perspective;
Figure 4
the device for punching seen from the side with an artificial fingernail to be punched in the processing position.

Die Figur 1a und 1b zeigen vorerst zum besseren Verständnis der Erfindung einen künstlichen Fingernagel 8 mit einem darin eingesetzten Schmuck-Einsatz in einer Ansicht von der Seite her gesehen. Ein solcher Schmuckeinsatz wird in ein vorbereitetes Loch im Fingernagel 8 eingesetzt. Er wird von unten mit seinem Oberteil durch das Loch im Fingernagel 8 geschoben. Weil er unten und oben einen Rand 3,6 aufweist, zwischen denen eine Nut 7 gebildet ist, ist sichergestellt, dass das Schmuckstück im Loch sicher gehalten ist. Meist wird der Schmuck-Einsatz in den Nagel 8 am kleinen Finger eingesetzt, da er dort am wenigsten beansprucht ist und der Nagel 8 des kleinen Fingers auch am zierlichsten wirkt. Natürlich können auch Schmuck-Einsätze gefertigt werden, deren Randkrümmung grösser ist und die dann dafür geeignet sind, in die flacher geformten Fingernägel für die andern Finger, selbst für die Daumen, eingesetzt zu werden. Es ist hier ersichtlich, dass die Ränder 3,6 von Oberteil 2 und Sockelfuss 5 des Schmuck-Einsatzes schön der Nagelkrümmung nachgeführt sind und deshalb der Schmuck-Einsatz sicher im Nagel-Loch gehalten wird. Zwischen Oberteil 2 und Sockelfuss 5 befindet sich ein zylindrischer Sockel 1, der mit seinem Durchmesser genau in das Loch im Fingernagel 8 passt.
In einer weiteren Ausführung kann der Schmuck-Einsatz auch als Lupe ausgebildet sein. Sein Oberteil, sowie Sockel und Sockelfuss sind dann durch eine zentrale Bohrung hohlzylindrisch, und in das Innere dieses Zylinders ist eine kleine Lupe eingesetzt. Diese wirkt einerseits als Schmuck, indem zum Beispiel der Oberteil einen schön verzierten Rand für die Lupe bildet. Andrerseits mag die Lupe beim Entziffern von Kleingedrucktem hilfreich sein. Man braucht dann nur mit dem entsprechenden Finger über die Textstelle zu fahren und erkennt die Buchstaben durch die Lupe vergrössert dargestellt.FIGS. 1a and 1b initially show an artificial fingernail 8 with a jewelry insert inserted therein in a side view for a better understanding of the invention seen here. Such a jewelry insert is inserted into a prepared hole in the fingernail 8. It is pushed from below with its upper part through the hole in fingernail 8. Because it has an edge 3, 6 at the top and bottom, between which a groove 7 is formed, it is ensured that the piece of jewelry is held securely in the hole. The jewelry insert is usually inserted into the nail 8 on the little finger, since it is least stressed there and the nail 8 of the little finger also has the most delicate effect. Of course, jewelry inserts can also be made, the edge curvature of which is larger and which are then suitable for being inserted into the flatter-shaped fingernails for the other fingers, even for the thumbs. It can be seen here that the edges 3, 6 of the upper part 2 and base foot 5 of the jewelry insert are nicely aligned with the nail curvature and therefore the jewelry insert is held securely in the nail hole. Between the upper part 2 and the base foot 5 there is a cylindrical base 1, the diameter of which fits exactly into the hole in the fingernail 8.
In a further embodiment, the jewelry insert can also be designed as a magnifying glass. Its upper part, as well as the base and base base are then hollow cylindrical through a central bore, and a small magnifying glass is inserted into the interior of this cylinder. On the one hand, this acts as jewelry, for example, the upper part forms a beautifully decorated edge for the magnifying glass. On the other hand, the magnifying glass may be helpful in deciphering the small print. You then only have to run your finger over the text and recognize it the letters are magnified through the magnifying glass.

Die Schwierigkeit, welche zu überwinden sich die Erfindung stellt, besteht nun darin, in einen künstlichen Fingernagel möglichst genau positioniert ein derartiges Loch eines genau bestimmten Durchmessers machen, wobei der Tatsache Rechnung zu tragen ist, dass der Fingernagel im Querschnitt bombiert ist. Die Erfindung löst dieses Problem grundsätzlich mit einem Locher, wobei das Loch durch Stanzen geschaffen wird.The difficulty which the invention has to overcome now consists in making such a hole of a precisely defined diameter positioned as precisely as possible in an artificial fingernail, taking into account the fact that the fingernail is convex in cross section. The invention solves this problem basically with a punch, the hole being created by punching.

Die Figur 2 zeigt ein Beispiel eines solchen Lochers von vorne gesehen. Er besteht im wesentlichen aus einer Kolben-Zylindereinheit. Der Kolben ist hier mit 9, der Hohlzylinder mit 10 bezeichnet. Der Kolben 9 ist vorteilhaft aus Kunststoff gefertigt und passt mit seinem Durchmesser in den Hohlzylinder 10, sodass er in ihm gut geführt ist. An seinem oberen Ende wird der Kolben 9 allseits in radialer Richtung von einem Kopf 19 überragt, dessen Oberseite 20 konkav geformt ist. Die Kolbenspitze 12 besteht aus einem Rohrabschnitt aus Metall, der über das leicht verjüngte Ende des Kunststoffkolbens gestülpt ist. Sie weist einen als Messer geschliffenen, scharfen Rand 13 auf. Dieser Rand 13 beschreibt längs des Kolbenspitzenumfanges eine Kurve ähnlich zwei aneinandergehänger S-Kurven. Die beiden dadurch gebildeten Spitzen 14 befinden sich einander diametral gegenüber. Die Wand des Hohlzylinders 10, welcher vorteilhaft einstückig aus Kunststoff gefertigt ist, weist in ihrem unteren Bereich ein im Querschnitt bananenförmiges, in bezug auf den Kolben 9 konvex gekrümmtes, den ganzen Hohlzylinder 10 durchsetzendes Querloch 11 auf, das breiter als der Innendurchmesser des Hohlzylinders 10 ist. Dieses Querloch 11 ist zur Aufnahme des zu lochenden Fingernagels bestimmt. Seine Krümmung 15 entspricht etwa der Querkrümmung des Fingernagels im Bereich der zu lochenden Stelle. Die Seitenwand des Hohlzylinders ist im Bereich 16 unterhalb des Querloches 11 konkav geformt. Der zu lochende Fingernagel wird nämlich vorher auf den natürlichen Fingernagel aufgeklebt und hernach wird der künstliche Fingernagel bereits am Finger befestigt in das Querloch 11 geschoben, wobei die Fingerspitze im konkaven Bereich 16 bequem ansteht. Der Hohlzylinder 10 weist auf seiner unteren Seite einen Sockel 17 auf, der den Hohlzylinder 10 in radialer Richtung überragt. Die Unterseite des Sockels 17 hat zwei konkave Einbuchtungen 18, die den Fingern 22,23 zum Halten des Lochers Halt geben. Der Locher wird nämlich so betätigt, dass der Daumen 21 der betätigenden Hand auf den Kopf 19 des Kolbens 10 drückt, während der Zeige- 22 und Mittelfinger 23 der gleichen Hand den Sockel 17 am Hohlzylinder 10 halten. In der hier gezeigten Ansicht sind der Daumen 21 sowie der Zeige- 22 und Mittelfinger 23 einer rechten Hand angedeutet. Es können sodann die Fingernägel der linken Hand gelocht werden. Umgekehrt, wenn die linke Hand in gleicher Weise den Locher ergreift, können die Nägel an der rechten Hand gelocht werden. In der Wandung des Hohlzylinders 10 sind einander diametral gegenüber gelegen Sackbohrungen 24 vorhanden, welche von oben längs der Zylinderachse verlaufen. In jene Sackbohrungen 24 sind Druckfedern 25 eingelegt, die auf die Unterseite des Kopfes 19 des Kolbens 9 wirken. Der Kolben 9 ist daher gegen die Federkraft dieser Druckfedern 25 in den Hohlzylinder 10 schiebbar, wobei der scharfe Rand 13 der Kolbenspitze 12 das Querloch 11 vollständig durchquert. Die Krümmung des Randes 13 verläuft zu jener 15 des Querloches 11 gerade um 90° gedreht. Damit der Kolben mit seinem scharfen Rand 13 in bezug auf das Querloch 11 in dieser Lage bleibt, weist er in seiner Wandung eine Nut 26 auf, die längs der Kolbenachse verläuft. Die Wandung des Hohlzylinders 10 ist von einer Madenschraube 27 durchsetzt, deren Spitze in die Nut 26 hineinragt und derart einerseits eine Verdrehung des Kolbens 9 im Hohlzylinder 10 verhindert und andrerseits die Kolbenbewegung in Richtung der Kolbenachse beidseits begrenzt. Weil wie beschrieben einerseits das Querloch 11 gekrümmt ist und auch der Rand 13 der Kolbenspitze 12 gleichermassen gekrümmt verläuft, diese Krümmungen jedoch zueinander gerade um 90° gedreht verlaufen, treffen zuerst die Spitzen 14 des Randes 13 auf einen in das Querloch 11 gehaltenen Fingernagel auf. Beim weiteren Hinunterdrücken des Kolbens 9 wird der Fingernagel durchstanzt, was durch die beschriebene Krümmung des Randes 13 stark erleichtert wird, da die wirksame Schneidkante des Randes 13 in steilem Winkel zum Nagelmaterial verläuft und dabei eine entsprechende Uebersetzung erzielt wird. Das heisst, pro Längeneinheit der Kolbenverschiebung wird vergleichsweise ein kleiner Anteil des Lochumfanges durchschnitten beziehungsweise durchstanzt. Entsprechend gering ist die notwendige Kraft, die auf den Kolben zu wirken braucht. Müsste der Nagel längs des ganzen Lochumfanges gleichzeitig gestanzt werden, würde die Fingerkraft in der Regel nicht ausreichen.Figure 2 shows an example of such a punch seen from the front. It essentially consists of a piston-cylinder unit. The piston is designated 9 here, the hollow cylinder 10. The piston 9 is advantageously made of plastic and its diameter fits into the hollow cylinder 10 so that it is well guided in it. At its upper end, the piston 9 is surmounted on all sides in the radial direction by a head 19, the upper side 20 of which is concave. The piston tip 12 consists of a tube section made of metal, which is put over the slightly tapered end of the plastic piston. It has a sharp edge 13 ground as a knife. This edge 13 describes along the circumference of the piston tip a curve similar to two contiguous S-curves. The two tips 14 thus formed are diametrically opposite one another. The wall of the hollow cylinder 10, which is advantageously made in one piece from plastic, has in its lower region a transverse hole 11, which is banana-shaped in cross section and convexly curved with respect to the piston 9, penetrates the entire hollow cylinder 10 and is wider than the inside diameter of the hollow cylinder 10. This transverse hole 11 is intended for receiving the fingernail to be punched. Its curvature 15 corresponds approximately to the transverse curvature of the fingernail in the area of the point to be punched. The side wall of the hollow cylinder is concavely shaped in the area 16 below the transverse hole 11. The fingernail to be punched is namely glued to the natural fingernail beforehand and afterwards the artificial fingernail is already attached to the finger and pushed into the transverse hole 11, the fingertip resting comfortably in the concave region 16. The hollow cylinder 10 has on its lower side a base 17 which projects beyond the hollow cylinder 10 in the radial direction. The underside of the base 17 has two concave indentations 18, which give the fingers 22, 23 hold for holding the punch. The punch is actuated so that the thumb 21 of the actuating hand presses on the head 19 of the piston 10, while the index 22 and middle finger 23 of the same hand hold the base 17 on the hollow cylinder 10. In the view shown here, the thumb 21 and the index 22 and middle finger 23 of a right hand are indicated. The fingernails of the left hand can then be punched. Conversely, if the left hand grips the punch in the same way, the nails on the right hand can be punched. In the wall of the hollow cylinder 10 there are diametrically opposed blind holes 24 which run from above along the cylinder axis. Compression springs 25 are inserted into those blind bores 24, which on the underside of the head 19 of the piston 9 act. The piston 9 can therefore be pushed against the spring force of these compression springs 25 into the hollow cylinder 10, the sharp edge 13 of the piston tip 12 completely passing through the transverse hole 11. The curvature of the edge 13 extends to that 15 of the transverse hole 11 just rotated by 90 °. So that the piston remains in this position with its sharp edge 13 with respect to the transverse hole 11, it has a groove 26 in its wall, which runs along the piston axis. The wall of the hollow cylinder 10 is penetrated by a grub screw 27, the tip of which protrudes into the groove 26 and on the one hand prevents rotation of the piston 9 in the hollow cylinder 10 and on the other hand limits the piston movement in the direction of the piston axis on both sides. Because, as described, the transverse hole 11 is curved on the one hand and the edge 13 of the piston tip 12 is equally curved, but these curvatures are rotated by 90 ° relative to each other, the tips 14 of the edge 13 first strike a fingernail held in the transverse hole 11. When the piston 9 is pressed down further, the fingernail is punched through, which is greatly facilitated by the described curvature of the edge 13, since the effective cutting edge of the edge 13 runs at a steep angle to the nail material and a corresponding translation is achieved in the process. This means that a comparatively small proportion of the circumference of the hole is cut or punched through per unit length of piston displacement. The force required to act on the piston is correspondingly low. The nail would have to run along the entire circumference of the hole would be punched at the same time, the finger strength would usually not be sufficient.

Figur 3 zeigt den Locher in einer perspektivischen Explosionszeichnung. Diese Darstellung gestattet einen besseren Einblick in die Formgebung der einzelnen Teile, insbesondere des Kolbens 9 und des Hohlzylinders 10. Klar erkennbar ist, wie der als Schnittkante wirkende Rand 13 der Kolbenspitze 12 geformt ist. Dieser Rand beschreibt eine Kurve, die zwei aneinandergehängten S-Kurven gleicht. Es werden dadurch zwei gerundete Spitzen 14 gebildet. Der Kolben 9 ist mittels der Nut 26 und der Madenschraube 27 so im Hohlzylinder 10 gesichert, dass die Spitzen 14 des Randes 13 stets dem Zenit der Krümmung 15 des Querloches 11 im Hohlzylinder gegenüberstehen. Der Rand 13 wirkt dann beim Hinunterschieben des Kolbens 9, wenn er das Querloch 11 durchquert, mit dem Rand der Zylinderbohrung auf der Fläche 15 wie eine Schere. Die erzeugte Scherwirkung reduziert die für das Stanzen erforderliche Kraft erheblich, sodass der Locher mit Leichtigkeit einhändig bedient werden kann. Am Hohlzylinder 10 ist ausserdem die konkave Einbuchtung 16 zur Aufnahme der Fingerspitze des mit dem zu lochenden Fingernagel versehenen Fingers zu sehen. Der zu lochende künstliche Fingernagel, welcher ja bereits auf den natürlichen aufgeklebt wurde, wird zum Stanzen in das Querloch geschoben, bis die Fingerspitze an der Einbuchtung 16 anliegt. Durch die Positionierung des Fingers in der Einbuchtung 16 ist es einfach, den Nagel im Querloch so zu positionieren, dass das Loch schön in der Längsmitte des Nagels herausgestanzt wird. Die Krümmung 15 hat zur Aufgabe, dass der künstliche Fignernagel zum Zweck des Stanzens satt aufliegt, sodass eine saubere Schnittkante beziehungsweise Stanzkante entstehen kann.Figure 3 shows the punch in an exploded perspective view. This illustration allows a better insight into the shape of the individual parts, in particular the piston 9 and the hollow cylinder 10. It can be clearly seen how the edge 13 of the piston tip 12, which acts as a cutting edge, is shaped. This edge describes a curve that resembles two connected S-curves. As a result, two rounded tips 14 are formed. The piston 9 is secured in the hollow cylinder 10 by means of the groove 26 and the grub screw 27 such that the tips 14 of the edge 13 always face the zenith of the curvature 15 of the transverse hole 11 in the hollow cylinder. The edge 13 then acts like a pair of scissors when the piston 9 is pushed down, when it passes through the transverse hole 11, with the edge of the cylinder bore on the surface 15. The generated shear effect considerably reduces the force required for punching, so that the punch can be operated with one hand with ease. On the hollow cylinder 10, the concave indentation 16 for receiving the fingertip of the finger provided with the fingernail to be punched can also be seen. The artificial fingernail to be punched, which has already been glued to the natural one, is pushed into the transverse hole for punching until the fingertip lies against the indentation 16. By positioning the finger in the indentation 16, it is easy to position the nail in the transverse hole so that the hole is nice in the longitudinal center of the nail is punched out. The purpose of the curvature 15 is to ensure that the artificial Fignernail lies snugly on the surface for the purpose of punching, so that a clean cutting edge or punching edge can be produced.

Figur 4 schliesslich zeigt den Locher in einer Ansicht von der Seite. Hier ist das oben Beschriebene dargestellt, indem ein Finger mit zu lochendem Nagel 8 angedeutet ist, wie er an den Locher angelegt wird.Figure 4 finally shows the punch in a view from the side. Here, what has been described above is shown, by indicating a finger with a nail 8 to be punched, as it is placed on the punch.

Die Erfindung ermöglicht es also, bereits aufgeklebte künstliche Fingernägel auf einfachste Weise nach dem Lackieren zu lochen, um sie zur Aufnahme eines Schmuckeinsatzes vorzubereiten. Der Locher ist sehr kompakt und kann leicht in einer Handtasche mitgetragen werden, sodass er stets zur Hand ist. Trotz seiner Kompaktheit bedarf es infolge seines speziellen Aufbaus keiner grossen Kräfte für das Stanzen. Der erfindungsgemässe Locher ermöglicht es daher auch zierlichen Damenhänden, die gewünschten Stanzlöcher problemlos anzufertigen.The invention thus makes it possible in the simplest way to punch already glued-on artificial fingernails after painting in order to prepare them for receiving a jewelry insert. The punch is very compact and can easily be carried in a handbag so that it is always at hand. Despite its compactness, due to its special structure, no large forces are required for punching. The punch according to the invention therefore also enables delicate female hands to easily produce the desired punch holes.

Claims (5)

  1. A device for punching a round hole with a saddle-shaped edge into the universally curved surface of the front portion of a false fingernail (8) for inserting a jewellery insert (4) with a saddle-shaped edge (3,6), consisting of a piston-cylinder unit (9, 10) in which the cylinder (10) forms the support surface for the false fingernail (8) and the guide for the punch knife, and the piston (9) forms the punch knife and its operating element, it being admitted axially in the cylinder (10) against the force of a compression spring (25) which is held in a blind bore (24) in the cylinder (10), characterized in that the cylinder wall has a transverse hole (11) which has a banana-shaped cross-section and is convexly curved on all sides in relation to the piston (9) and passes through the entire hollow cylinder (10) and is wider than the inner diameter of the hollow cylinder (10) and thus forms a cambered, universally curved, convex support surface for the fingernail (8) to be holed, and in that the piston tip (12) has a sharp edge (13) with a circular layout which is ground as a knife with a piston interior which is set back in relation to this edge (13) which describes a curve along the periphery of the piston consisting of two adjoining S-curves, the piston (9) being positioned in the hollow cylinder (10) in such a manner that the points of the piston edge (13) projecting the furthest in the axial direction lie opposite the highest point of the transverse hole (11) in the hollow cylinder wall such that when the piston (9) is pushed inwards, the tips (14) of its edge (13) pass through the transverse hole (11) first.
  2. The device of claim 1, characterized in that the hollow cylinder (10) has a base (17) at its end furthest from the piston (9), which projects beyond it in the radial direction, and in that the piston (9) has a head (19) at its end furthest from the hollow cylinder (10) which projects beyond the cylinder (9) in the radial direction.
  3. The device of one of the preceding claims, characterized in that the piston (9) is held in the hollow cylinder (10) in that it has a lateral axial groove (26) into which projects a screw (27) which passes through the hollow cylinder wall in such a way that the piston (9) can be displaced in the hollow cylinder (10) along the length of the groove (26).
  4. The device of one of the preceding claims, characterized in that both the piston (9), with the exception of the piston tip (12), and the hollow cylinder (10) are made as one piece and entirely from plastic.
  5. The device of one of the preceding claims, characterized in that the opposite sides of the piston (9) and the hollow cylinder (10) have at least one concave recess (20; 18) whose purpose is to provide a grip for the fingers (21,22,23) for operating the device.
EP91901266A 1990-01-12 1991-01-09 Device for punching holes in artificial fingernails Expired - Lifetime EP0463130B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH106/90A CH679363A5 (en) 1990-01-12 1990-01-12
CH106/90 1990-01-12
PCT/CH1991/000005 WO1991010543A1 (en) 1990-01-12 1991-01-09 Device for punching holes in artificial fingernails

Publications (2)

Publication Number Publication Date
EP0463130A1 EP0463130A1 (en) 1992-01-02
EP0463130B1 true EP0463130B1 (en) 1995-09-06

Family

ID=4179412

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Application Number Title Priority Date Filing Date
EP91901266A Expired - Lifetime EP0463130B1 (en) 1990-01-12 1991-01-09 Device for punching holes in artificial fingernails

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US (1) US5323538A (en)
EP (1) EP0463130B1 (en)
JP (1) JPH04504382A (en)
AT (1) ATE127378T1 (en)
AU (1) AU6968491A (en)
CH (1) CH679363A5 (en)
DE (1) DE59106404D1 (en)
WO (1) WO1991010543A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4438203B2 (en) * 2000-09-12 2010-03-24 株式会社デンソー Pipe drilling method and apparatus
US7578034B2 (en) * 2003-05-19 2009-08-25 Bg & Sons, Llc Collar stay punch, storage device and method
US7503120B2 (en) * 2005-07-11 2009-03-17 Henkel Corporation Cutter adapted to be held by human hand or finger
US20070204374A1 (en) * 2006-02-20 2007-09-06 Bier Jason J Collar stay, shirt collar, combination, and method
BE1018820A3 (en) * 2009-07-09 2011-09-06 Ouytsel Kris Emiel Margot Van NAIL CLIPPERS
US8985122B1 (en) * 2012-09-07 2015-03-24 Anne Marie Voegeli Fingernail decoration kit
CN112847651B (en) * 2020-12-26 2023-04-28 河南省洛阳正骨医院（河南省骨科医院） Human nail prosthesis cutting device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1161684A (en) * 1915-02-23 1915-11-23 Albert V J Ireland Stiletto or pointed pin.
US1631175A (en) * 1923-02-15 1927-06-07 Charles E Winkler Stiletto
US2540782A (en) * 1949-06-03 1951-02-06 Harold A Large Nail clipper
US2708972A (en) * 1952-01-25 1955-05-24 Emmett E Park Device to locate and punch mark the intersection of two straight lines
US2679044A (en) * 1952-12-22 1954-05-25 Nu Matic Nailer Inc Nail-driving machine with movable nosepiece
US3120143A (en) * 1961-02-20 1964-02-04 Lloyd A Kreider Tube notching machine
US3391460A (en) * 1966-11-28 1968-07-09 William J. Moore Hole cutting apparatus
US4069586A (en) * 1976-05-19 1978-01-24 Skelton Horace C Center punch
DE2719378A1 (en) * 1976-12-10 1978-06-15 Fausto Michels Jewel decorating device for toe or finger nails - consists of tongs with pin on one arm fitting into orifice on second arm carrying further pin for jewel mounting
GB8431402D0 (en) * 1984-12-12 1985-01-23 Virasami P Fingernail punch
US4807367A (en) * 1987-06-15 1989-02-28 Land And Marine Applicators, Inc. Can end cutting device

Also Published As

Publication number Publication date
ATE127378T1 (en) 1995-09-15
WO1991010543A1 (en) 1991-07-25
CH679363A5 (en) 1992-02-14
DE59106404D1 (en) 1995-10-12
AU6968491A (en) 1991-08-05
JPH04504382A (en) 1992-08-06
US5323538A (en) 1994-06-28
EP0463130A1 (en) 1992-01-02

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