Abstract:
A tool for the hygiene and cutting of cuticles, fingernails and toenails, wherein two interchangeable jaws, provided with respective cutting blades, are removably supported by two jaw holders connected to respective handles for gripping the tool itself; the jaw holders and the handles are mutually hinged to rotate the aforementioned jaws between an open position and a closed and cutting position.

Description:
BACKGROUND OF THE INVENTION 
     The present invention relates to a tool for the hygiene and cutting cuticles, fingernails and toe nails. 
     In particular, the tool of the present invention is of the type commonly known by the name of nail clippers. 
     Known nail clippers usually comprise two metal arms mutually connected in crossed position by means of a pivot pin for the rotation of the arms themselves. Each arm presents, at opposite sides of the pivot pin, a longer portion, which is curved and shaped in such a way as to define a handle for gripping the nail clippers, and a shorter portion, which defines a jaw with a pointed end and provided with a cutting blade. 
     The blades of the two jaws are positioned facing each other and are forced against one another in a side-by-side cutting position when the handles are forced against one another in a close position of closure. 
     In such a tool, it is necessary for the blades to be sharpened periodically with sharpening operations which are rather costly. Moreover, each sharpening operation causes the tool to be unavailable for a more or less long period of time, thereby entailing the need to have a back-up tool available, with the deriving additional costs. 
     In addition to the aforesaid drawback, known nail clippers of the kind described above present the drawback of being difficult to sterilize in order to allow their hygienic use by more than one person. This difficulty fundamentally derives from the fact that known sterilizing fluids tend to oxidize its blades rather easily. On the other hand, dry sterilization is oftentimes not very effective and, hence, not very safe. 
     SUMMARY OF THE INVENTION 
     The aim of the present invention is to provide a tool for the hygiene and cutting of cuticles and fingernails and toe nails which is free from the drawbacks described above. 
     According to the present invention a tool for the hygiene and cutting of cuticles and fingernails and toe nails is provided, comprising two jaws provided with respective cutting blades, characterized in that it comprises two jaw holders able removably to support said jaws and mutually hinged to rotate the jaws themselves between an open position and a closed and cutting position; said jaws being interchangeable. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The technical features of the invention, according to the aforesaid aims, can clearly be noted from the content of the claims set out below and its advantages shall become more readily apparent in the detailed description that follows, made with reference to the accompanying drawings, which represent an embodiment provided purely by way of non limiting example, in which: 
     FIG. 1 shows a front view of a preferred embodiment of the tool according to the present invention; 
     FIGS. 2,  3 ,  5 ,  8  and  11  show respective details of the tool of FIG. 1; 
     FIG. 4 shows a side view of the detail of FIG. 5; 
     FIG. 6 is a section according to the line VI—VI of the detail of FIG. 5; 
     FIG. 7 is a section view according to the line VII—VII of the detail of FIG. 8; 
     FIG. 9 shows a side view of the detail of FIG. 8; 
     FIGS. 10 and 12 show two side views of the detail of FIG. 11; 
     FIGS. 13 and 14 show front views of two different embodiments of the detail of FIG.  11 . 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     With reference to FIG. 1, the reference number  1  indicates in its entirety a set of nail clippers for the hygiene and cutting of cuticles, fingernails and toenails. 
     The nail clippers  1  are wholly made of stainless steel and comprise two arms  2   a,    2   b  mutually hinged by means of pivot pin  3  in correspondence with respective ends defined by appendices  4 . 
     Each arm  2   a,    2   b  presents, at opposite sides of its own appendix  4 , a longer portion, which is curved and shaped in such a way as to define a handle  5  for gripping the nail clippers  1 , and a short end portion  6 , which bears hinged a respective jaw holder  7   a,    7   b  by means of a pivot pin  8 . 
     In proximity to its own appendix  4 , at the opposite side of the end portion  6 , each arm  2   a,    2   b  bears a screwed on cylindrical element  9 , which is oriented in the same direction as the appendix  4  itself and serves as an internal support element for a helical spring  10  interposed between the arms  2   a,    2   b  themselves. 
     The jaw holder  7   a,  shown in greater detail in FIGS. 4,  5  and  6 , is connected to the respective arm  2   a  through its own end portion  11  defined by two appendices  12  positioned at opposite sides of the portion  6  and hinged thereon by means of the aforementioned pivot pin  8 . 
     The jaw holder  7   a  is provided with a seat  13  able removably to support a respective interchangeable jaw  14   a,  shown, in detail, in FIGS. 10,  11  and  12 . 
     The jaw  14   a  is defined by a single piece so shaped as to present a tip  15  provided with a cutting blade  16 , a substantially cylindrical terminal body  17  provided with an intermediate annular groove  18 , and a substantially cylindrical central body  19  positioned between the tip  15  and the aforesaid terminal body  17 . 
     In particular, the central body  19  presents a diameter that is greater than the diameter of the terminal body  17  and is partially flattened, at the part confining with the terminal body  17  itself, in order to present two planar rectangular faces  20  diametrically opposite to each other. 
     The seat  13  of the jaw holder  7   a  presents a first compartment  21  for receiving and supporting the central body  19 , and, in communication with the compartment  21 , a second compartment  22  able to house the terminal body  17  in its interior. 
     Specifically, the compartment  21  presents two planar lateral walls  23 , mutually parallel, which are at a mutual distance approximating by excess the distance between the faces  20  of the central body  19  so as to be coupled, each, with a respective face  20 . 
     The compartment  21  also presents a bottom planar wall  24 , which is orthogonal to the walls  23  and serves as a support wall for the central body  19 . 
     The bottom wall  24  centrally presents a circular hole  25  for communicating with the cylindrical cavity  26  defining the second compartment  22 . In particular, the cavity  26  presents a diameter approximating by excess the diameter of the terminal body  17 , and is placed in “T” communication with an additional cylindrical cavity defined by a through hole  27  obtained in the jaw holder  7   a.  The hole  27  and the cavity  26  present respective mutually orthogonal axes  28  and  29 . 
     The jaw  14   a,  once housed in its seat  13 , is axially locked in the seat  13  itself by means of a screw  30  screwed inside the hole  27  and terminating inside the groove  18 . 
     The jaw  14   b  and the jaw holder  7   b  are substantially similar to the jaw  14   a  and to the jaw holder  7   a  described above. In particular, for the reason described above, the jaw holder  7   b  is shown in FIGS. 7,  8  and  9  with the same reference numbers used to describe the jaw holder  7   a.    
     Lastly, as shown in FIG. 1, the jaw holders  7   a  and  7   b  are mutually connected, in correspondence with respective end appendices  31  positioned adjacent to the seats  13 , by means of a pivot pin  32  parallel to the pivot pins  3  and  8  and to the screws  30 . 
     In conclusion of the above, it should be stressed that the tip  15  of the pair of interchangeable jaws  14   a,    14   b  can have a different shape from the one shown in FIGS. 10,  11  and  12  described above. In this regard and as shown in FIGS. 13 and 14, the aforementioned tip  15  assumes, respectively, a shape particularly suitable for cutting cuticles and a shape particularly suitable for cutting in-grown nails. 
     This, in fact, constitutes a further advantage of the present invention, since it allows to have available, for each nail clipper set of the type described above, a plurality of jaws, each dedicated to a particular cutting requirement. 
     It should, moreover, be noted that the interchangeable jaws, thanks to their relatively low cost, can conveniently be of the disposable type. 
     The invention thus conceived can be subject to numerous modifications and variations, without thereby departing from the scope of the inventive concept. Moreover, all components can be replaced by technically equivalent elements.