Nail clippers

Information

  • Patent Grant
  • 6606794
  • Patent Number
    6,606,794
  • Date Filed
    Wednesday, April 19, 2000
    24 years ago
  • Date Issued
    Tuesday, August 19, 2003
    21 years ago
  • Inventors
  • Examiners
    • Ashley; Boyer D.
    Agents
    • Milde & Hoffberg, LLP
  • CPC
  • US Classifications
    Field of Search
    • US
    • 030 26
    • 030 27
    • 030 28
    • 030 145
    • 030 186
    • 030 191
    • 030 193
    • 030 329
    • 030 330
    • 030 334
    • 030 337
    • 030 338
    • 030 340
    • 030 341
    • 030 344
    • 030 175
    • 132 73
    • 132 735
    • 132 755
    • D28 60
  • International Classifications
    • A45D2902
Abstract
The inventive nail clippers comprise a two-membered clipper body (2) with a metal fitting (8) placed inside. The metal fitting has a U-shaped spring section (46) that, at the end of each of its legs (48), has bent portions (50) which form the cutting edges (10). The two clipper body members (4,6) also have angled portions (64,66) which encompass the leg ends of the spring section and which meet together opposite to the bent portions (50) that form the cutting edges (10). The angled portions engage with each other in such a way that they fit together, thereby ensuring that the cutting edges are accurately guided when they meet, even when the clipper body is made of plastic and is thus relatively resilient.
Description




This application relates to nail clippers designed for manicures and pedicures. More specifically, this application relates to an improved nail clipper wherein the body of the apparatus can be manufactured out of a flexible, synthetic material, without causing the separate clipping portion of the apparatus to lose its precision and proper clipping quality.




BACKGROUND OF THE INVENTION




Similar nail clippers are known from the French Pat. No. 996,752 and, in the form of so-called nail snippers from the German Pat. No. 478,585 and U.S. Pat. No. 1,721,415. In addition, it is already known, for example, from the German Pat. No. 3,043,552, to manufacture the body of nail clippers of synthetic material in order to save manufacturing costs and to use separate metal fittings embedded in the two members of the clipper body. However, synthetic material of a suitable toughness is relatively flexible in comparison to typically employed metallic materials. In addition, the cutting edges meeting each other in a line-shaped manner may not find very precise guideways in a separate clipper body, even if it is made of metal, and without said guideway, a proper cut may not possible.




SUMMARY OF THE INVENTION




It is, therefore, the objective of this invention to design nail clippers so that the cutting edges can find precise guideways, at least when the edges meet, which will make the respective clippers also suitable for cutting relatively thick nails.




This objective, as well as other objectives which will become apparent from the discussion that follows, are achieved, in accordance with the present invention, by providing nail clippers wherein the two members of the clipper body are provided with deflections which outwardly surround the two ends of the legs of the spring section such that they meet on the side opposite to the deflections which form the cutting edges and wherein, at the same time, they fittingly engage each other.




The engagement of the bent segments at the members of the clipper body that enclose the ends of the members of the spring section inevitably produces a precise guideway when the cutting edges meet. An additional improvement of the guideway is accomplished when, the two ends on the back side of the two members of the clipper body are guided in relation to one another as well.




The nail clippers can be utilized for both manicure and pedicures.




A preferred exemplary embodiment of such nail clippers is described in greater detail.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

shows an over-head view of the respective nail clippers in its typical size, where those portions of the metal fitting that are covered in this view are indicated by a broken line.





FIG. 2

shows an exploded view of the clippers, where all of its individual components can be recognized.





FIG. 3

shows in great magnification a section through the cutting segment of the clippers approximately along the line IIIā€”III of FIG.


1


.





FIGS. 4

,


5


and


6


each show an over-head view of the clippers, however, with the rear section, appearing cut open and where the clippers are shown in different situations of use.











DETAILED DESCRIPTION OF THE INVENTION




As can best be recognized in

FIG. 2

, the shown nail clippers exhibit a clipper body


2


made up of two separate members


4


and


6


of the clipper body, a metal fitting


8


with cutting edges


10


formed on the fitting, a two-member physical pivot consisting of a screw


12


and a nut


14


as well as a lock with a catch


16


, an axis bolt


18


and a helical torsion spring


20


.




The two members


4


and


6


of the clipper body can be joined using the screw


12


and the nut


14


by inserting the nut


14


, which is provided with a shaft section


22


, into corresponding holes


24


or


26


of the respective members


4


and


6


of the clipper body, with the members being placed on top of one another and then fastened with the screw


12


that is screwed in from the other side.




As can be noticed, in addition to the thread section


28


, the screw


12


exhibits a flat head


32


that is provided with two holes


30


, where said flat head is positioned in a corresponding recess


34


of member


4


of the clipper body. Similarly, in addition to its shaft section


22


, the nut


14


exhibits a flat head


36


that is positioned in a corresponding recess (not visible in the figure) of member


6


of the clipper body.




To lock the screw


12


in relation to the nut


14


, the shaft section


22


of the nut


14


has two flat sections


38


opposite to one another in its outer end section, where the flat sections fit corresponding flat sections


40


in the hole


24


of member


4


of the clipper body, and where on the bottom side of the head


32


of the screw


12


a diagonal fin


42


is provided that comes to rest in one of a multitude of grooves


44


at the bottom of the recess


34


. Of course, in deviation from this embodiment, the nut


14


could also be integrated in member


4


of the clipper body.




The metal fitting


8


, which is made of spring plate, exhibits a bow-shaped or, more precisely, a basically U-shaped spring section


46


with bent portions


50


on the ends of its members or legs


48


, the bent portions being aligned with one another to form the cutting edges


10


. Furthermore, the ends of the members (legs)


48


have holes


52


to fasten the fitting in the clipper body


2


.




The fitting


8


is placed in a corresponding recess


54


of the clipper body


2


such that the top


56


of the spring section


46


surrounds the shaft section


22


of the nut


14


. As shown, especially in

FIG. 3

, the respective front end sections


58


and


60


of members


4


and


6


of the clipper body are designed such that they surround the ends of members (legs)


48


of the spring section


46


on their outer side. Anchoring pins


62


located on the inner side of the end sections


58


and


60


penetrate through the holes


52


in the ends of members


48


. In addition, the end sections


58


and


60


exhibit joining angled portions


64


and


66


located on the side opposite to the bent portions


50


of the fitting


8


, and together with the bent portions


50


form a trap


68


for the nail and skin clippings cut off using cutting edges


10


.




As can be seen from

FIG. 3

, angled portions


64


and


66


engage fittingly when the clippers are closed with a groove


70


and a tongue


72


in order to securely guide the end sections


58


and


60


and with them the cutting edges


10


when they meet. This is done in particular with the idea that the body


2


of the clippers is preferably made of synthetic material and, therefore, will exhibit a certain resiliency in comparison to a clipper body made of metal, which is not to be neglected.




The two members


4


and


6


of the clipper body receive additional reciprocal guideways by the locking mechanism mentioned above. In this instance, the catch


16


that is held in a pivoting manner by means of the axis bolt


18


in the member


4


of the clipper body, is supported appropriately on the side in respective recesses


74


or


76


(

FIG. 4

) of the two members


4


and


6


of the clipper body, such that the latter may not be set apart from one another.




Surrounding axis bolt


18


, spring


20


is positioned in a corresponding recess


78


of the catch


16


. It rests on the catch as well as on member


4


of the clipper body in a manner that is attempting to swing the catch towards the outside.




Remarkably, the catch


16


does not leave the recess


78


in member


6


of the clipper body, even when the clippers are opened as shown in FIG.


6


. With fully closed clippers (FIG.


4


), the catch


16


with its protrusion


80


can be pressed into an engaging indentation


82


forming an undercut at the recess


76


, where it is held back due to the influence of the expansion spring force effective at the clipper body


2


on the side of the metal fitting


8


. To open the clippers, initially the rear portions of members


4


and


6


of the clipper body must be pressed together slightly even further (FIG.


5


), which will release the protrusion


80


from the undercut of the engaging indentation


82


, and the spring


20


will swing the catch


16


outward. The spring section


46


of the metal fitting


8


will carry out the further opening. However, member


6


of the clipper body will be held back by the catch


16


in the position shown in

FIG. 6

, because the protrusion


80


will strike a shoulder


88


at the end of the indentation


76


, while a striking surface


90


on the inside of the indentation


76


will prevent the catch


16


from swinging out further.




As can be seen in

FIG. 3

as well, this makes sharpening of the cutting edges


10


easy, due to the fact that the bent portions


50


are slanted at an obtuse angle such that sharpening can be performed from the outside at the top of the slanted angle.




If the cutting edges are worn or can no longer be sharpened, the fitting


8


can be replaced easily, requiring only the loosening of screw


12


and separating the two members


4


and


6


of the clipper body.




It is understood that the clipper body


2


, especially in its rear area, may be designed differently from the design presented, for example with a curve. Various deviations are also possible, for example, with regard to support and locking, if a locking mechanism is to be provided.




There has thus been shown and described a novel nail clipper which fulfills all the objects and advantages sought therefor. Many changes, modifications, variations and other uses and applications of the subject invention will, however, become apparent to those skilled in the art after considering this specification and the accompanying drawings which disclose the preferred embodiments thereof. All such changes, modifications, variations and other uses and applications which do not depart from the spirit and scope of the invention are deemed to be covered by the invention, which is to be limited only by the claims which follow.



Claims
  • 1. Nail clipper with a two-member clipper body and a metal fitting inserted therein, said metal fitting including a bow-shaped spring section having two elongate legs, which spring section includes a bent portion extending longitudinally along each of said two legs and forming an angled profile in each leg with a longitudinally extending cutting edge, wherein the two members of said clipper body have longitudinal angled portions which (1) outwardly surround said two legs of said spring section, and (2), when approaching each other in the course of closing the nail clipper, overlap on a side opposite to said bent portions forming the cutting edges while at the same time fittingly engaging each other.
  • 2. Nail clipper as set forth in claim 1, wherein the bow-shaped spring section surrounds a rotational axis of the clipper body forming a pivot for the two members.
  • 3. Nail clipper as set forth in claim 1, wherein the bent portions of the spring section that form the cutting edges are slanted at an obtuse angle defining a central apex and wherein the cutting edges are accessible for grinding from outside of the clippers at the apex of the angle.
  • 4. Nail clipper as set forth in claim 1, wherein the ends of the legs of the spring section are supported by end portions of the members of the clipper body and anchoring pins that penetrate through respective openings in these ends of the legs.
  • 5. Nail clipper as set forth in claim 1, wherein the angled portions on the outside of the end portions of the members of the clipper body that surround the ends of the legs of the spring sections, together with the bent portions forming the cutting edges of the spring section, form a trap for the respective nail and skin clippings.
  • 6. Nail clipper as set forth in claim 1, wherein the members of the clipper body are made of a plastic material.
  • 7. Nail clipper set forth in claim 6, wherein all components of the clipper body, with the exception of the spring section, are made of a plastic material.
  • 8. Nail clipper as set forth in claim 1, wherein the two-member clipper body includes a releasable locking mechanism that is capable of keeping the clippers at least approximately closed against the opening force of the bow-shaped spring section of the metal fitting.
  • 9. Nail clipper as set forth in claim 8, wherein the locking mechanism comprises a catch supported in a pivoting manner by one member of the clipper body, and wherein said catch is received in a corresponding recess of the other member of the clipper body in such a manner that the two members of the clipper body remain aligned to one another when near the closed position.
  • 10. Nail clipper as set forth in claim 9, wherein the catch is retained in the respective recess even when the clippers are open.
  • 11. Nail clipper as set forth in claim 9, wherein, in the closed position of the clippers, the catch is pressed into an undercut of an engaging indent with a spring force tending to push it out.
Priority Claims (1)
Number Date Country Kind
197 51 561 Nov 1997 DE
Parent Case Info

This application is a 371 of PCT/EP98/07319 filed Nov. 16, 1998.

PCT Information
Filing Document Filing Date Country Kind
PCT/EP98/07319 WO 00
Publishing Document Publishing Date Country Kind
WO99/26513 6/3/1999 WO A
US Referenced Citations (7)
Number Name Date Kind
244891 Heim et al. Jul 1881 A
639377 Grant Dec 1899 A
797937 Carter Aug 1905 A
806037 Wilcox Nov 1905 A
898808 Wilcox Sep 1908 A
1721415 Schnefel Jul 1929 A
5331739 Basangy Jul 1994 A
Foreign Referenced Citations (3)
Number Date Country
478585 Jun 1929 DE
3043552 Aug 1981 DE
996752 Dec 1951 FR