Tool for the hygiene and cutting of cuticles, fingernails and toe nails

Abstract: A tool (1) for the hygiene and cutting of cuticles, fingernails and toenails, wherein two interchangeable jaws (14a, 14b), provided with respective cutting blades (16), are removably supported by two jaw holders (7a,7b) connected to respective handles (5) for gripping the tool (1) itself; the jaw holders (7a, 7b) and the handles (5) are mutually hinged to rotate the aforementioned jaws (14a, 14b) between an open position and a closed and cutting position.

Description: 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. From document DE 29806938 U1, are also known, nail clippers comprising two arms mutually hinged by means of a first pivot pin. Each arm presents, at opposite sides of the fist 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 short portion, which bears hinged a respective lever by means of a second pivot pin. The two levers are hinged together by means of a third pivot pin, and each of them is defined by a single piece so shaped as to present a jaw at his free end, the jaw presenting a tip provided with a cutting blade. In both cases, 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 both cases, 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 sterilise in order to allow their hygienic use by more than one person. This difficulty fundamentally derives from the fact that known sterilising fluids tend to oxidise its blades rather easily. On the other hand, dry sterilisation is oftentimes not very effective and, hence, not very safe. From document US 2677177, are also known cutting pliers, in particular for cutting of wires, iron plates and the like, comprising two arms mutually hinged by means of a first pivot pin. Each arm presents, at opposite sides of the fist pivot pin, a longer portion, which is curved and shaped in such a way as to define a handle for gripping the cutting pliers, and a short portion, which bears hinged a respective lever by means of a second pivot pin. The two levers are hinged together by means of a third pivot pin, and each of them is defined by a single piece so shaped as to present a jaw at his free end. Each jaw is able to support a respective knife, the knife being removable from the jaw and, thus, interchangeable. In the cutting pliers described in US 2677177 is quite difficult and dangerous to handle interchangeable knives. 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. The aim of the present invention is achieved according to the attached independent claim; preferred features are outlined in the dependent claims attached thereto. The technical features of the invention, according to the aforesaid aims, can clearly be noted from the contentsof 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: Figure 1 shows a front view of a preferred embodiment of the tool according to the present invention; Figures 2, 3, 5, 8 and 11 show respective details of the tool of Figure 1; Figure 4 shows a side view of the detail of Figure 5; Figure 6 is a section according to the line VI-VI of the detail of Figure 5; Figure 7 is a section view according to the line VII-VII of the detail of Figure 8; Figure 9 shows a side view of the detail of Figure 8; Figures 10 and 12 show two side views of the detail of Figure 11; Figures 13 and 14 show front views of two different embodiments of the detail of Figure 11. With reference to Figure 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 2a, 2b mutually hinged by means of pivot pin 3 in correspondence with respective ends defined by appendices 4. Each arm 2a, 2b 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 7a, 7b 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 2a, 2b 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 2a, 2b themselves. The jaw holder 7a, shown in greater detail in Figures 4, 5 and 6, is connected to the respective arm 2a 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 7a is provided with a seat 13 able removably to support a respective interchangeable jaw 14a, shown, in detail, in Figures 10, 11 and 12. The jaw 14a 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 for supporting the jaw holder 7a 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 7a. The hole 27 and the cavity 26 present respective mutually orthogonal axes 28 and 29. The jaw 14a, 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 14b and the jaw holder 7b are substantially similar to the jaw 14a and to the jaw holder 7a described above. In particular, for the reason described above, the jaw holder 7b is shown in Figures 7, 8 and 9 with the same reference numbers used to describe the jaw holder 7a. Lastly, as shown in Figure 1, the jaw holders 7a and 7b 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 14a, 14b can have a different shape from the one shown in Figures 10, 11 and 12 described above. In this regard and as shown in Figures 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.

Claims: A tool for the hygiene and cutting of cuticles, fingernails and toenails, comprising two jaws (14a, 14b) provided with respective cutting blades (16), characterised in that it comprises two jaw holders (7a, 7b) able to support said jaws (14a, 14b), said jaws (14a, 14b) being removable, said jaw holders (7a, 7b) being mutually hinged to rotate the jaws (14a, 14b) between an open position and a closed and cutting position; each of said jaws (14a, 14b) being interchangeable and being defined by a single piece so shaped as to present a tip (15) provided with a cutting blade (16). A tool as claimed in claim 1, characterised in that it comprises locking means (30) to lock each said jaw (14a, 14b) and each respective said jaw holder (7a, 7b) in a determined mutual position. A tool as claimed in claim 1 or 2, characterised in that it comprises two handles (5) for gripping the tool (1) itself; each handle (5) being connected to a respective said jaw holder (7a, 7b). A tool as claimed in claim 3, characterised in that each said handle (5) is hinged, with its own first end (6), to a second end (11) of the respective said jaw holder (7a, 7b). A tool as claimed in claim 4, characterised in that said jaw holders (7a, 7b) are mutually hinged in correspondence with respective third ends (31). A tool as claimed in claim 5, characterised in that said handles (5) are mutually hinged in correspondence with respective fourth ends (4). A tool as claimed in any of the claims from 1 to 6, characterised in that it comprises elastic means (10) interposed between said two handles (5). A tool as claimed in claim 7, characterised in that said elastic means (10) comprise a helical spring (10).

Inventors: RINALDI DINO
Applicants: RINALDI DINO
Application year: 2000
Main classification: A45D29
IPC codes: A45D29