Nippers with retainer for work clippings

Description

P 1950 G. E. SORENSEN 2,521,027

NIPPERS WITH RETAINER FOR WORK CLIPPINGS Filed Sept. 27, 1947 iatented Sept. 5,

NIPPERS WITH RETAINER FOR WORK CLIPPIN GS George E. Sorensen, Stratford, Conn, assignor to 0. E. Sorensen, Incorporated, Bridgeport, Conn., a corporation of Connecticut Application September 27, 1947, Serial No. 776,591

This invention relates to nipping implements of the plier type and particularly concerns improvements in such implements intended for use in cutting or trimming toenails or fingernails.

The clipping action of ordinary pedary or manicuring nippers causes the nail clippings to be snapped away from the implement in uncontrolled directions. An object of this invention is to prevent the clippings from being projected away from the implement by confining and accumulating them in a catch space which may be formed at least in part by one or both of the instrument jaws until the accumulated clippings are purposely discharged from or dumped out of such space.

Another object is to provide a conventional nipper implement with a clippings retainer which is firmly but removably lodged in place on the implement and preferably without resort to extraneous fastening means, whereby mere finger pressure combined with finger shoving action suflices to apply and remove the retainer.

Still further objects are to provide conventional metallic nippers with a neat streamlined retainer of minimum bulk having graceful and pleasing lines and tinted with color whether or not transparent for thereby lending a gay and dressed-up tone to the otherwise utilitarian appearance of metallic nip-pers.

The foregoing and related aims of the invention will become evident in connection with the following description and drawings having reference thereto disclosing a successful embodiment of the invention, in which drawings:

Fig. 1 illustrates in pedary use a nipping implement with clippings retainer incorporating the present improvements.

Fig. 2 is an elevation of the implement shown in Fig. l in preferred actual size.

Fig. 3 is an enlarged view of the jaws of the implement taken in section on the plane 33 in Fig. 2 looking in the direction of the arrows.

Fig. 4 is a view similar to Fig. 3 with the clippings retainer normally bowed or unsprung as before fastening it to the jaw of the nippers.

Fig. 5 shows the clippings retainer as viewed in Fig. 2 on a larger scale similar to Fig. 3 and removed from the implement.

Fig. 6 is a view taken in section on the plane 66 in Fig. 5 looking in the direction of the arrows.

Fig. 7 is a perspective view of the retainer removed from the nipper jaws.

Fig. 8 is a view taken in section on the plane 8-8 in Fig. 2 looking in the direction of the arrows.

11 Claims. (Cl. 30-28) Fig. 9 is a fragmentary perspective view of the clippings catch pocket.

Fig. 1 illustrates a conventional manner of use of pedary nippers in clipping a toenail, the implement here illustrated being equipped with a practical form of clippings retainer embodying the present invention.

The nipper implement herein shown is conventional in having two levers including nipper jaws ill and II respectively integral with handles [2 and i3 hinged together for relative swinging movement by means of a pivot pin E i fixed in rotative relation to jaw l l and with respect to which the jaw iii is free to swing. Also as in common practice, one of the handles [3 carries attached thereto a leaf spring I? fastened by a screw or rivet [3 at a median point in its length so that one end of leaf spring ll is free for resilient flexing while bearing against the other handle l2 in a manner constantly urging the handles to separate and constantly urging the nipper jaws toward their open relationship shown in Fig. 2. When the jaws are manually closed by squeezing the handles toward each other, the work clipping edges 20 and 2| meet throughout their length. They are held together for so meeting by the axial thrust afforded by the headed-over ends of pivot pin [4.

Two of the broadside jaw faces 22 and 23 of jaws l0 and II, respectively, are relatively inclined so that when the edges 29 and 2i meet, these jaw faces combine to form a concavity 24 receptive to clippings nipped off from the work. Such clippings are indicated herein as fragments 26 ofa toenail or fingernail. According to the present improvements concavity 24 is bridged by a retainer here shown in the form of a removable guard plate attachment 2? that covers and forms a closure across the concavity operative to retain the clippings 26 therein.

Retainer 27 may have devious forms and be made of various kinds of material but preferably will be a bowed tapering plate neatly conforming in elevation as in Fig. 2 to the outline shape of the jaws of the implement and be carried in fixed relation to one of such jaws ll in a manner not to interfere with the swinging movement relative position on the implement.

characterized by particular structural shapes enabling it to be made as a separate piece that is readily detachable as a unit from the implement jaws. It will preferably be made of a springy material and more abruptly bowed lengthwise than is the convex curvature of the concavo-convex jaws of the implement along which the retainer abuts, whereby 'finger thrust on the retainer toward the convex retainer supporting surface of the implement jaw, or in the direction of arrow P in Fig. 4, will cause a flattening fiexure of the retainer yieldingly opposedb'yits bwmbowin'g tendency. This normal bowing tendency of the retainer is made use of to accomplish firm lodgment of the retainer on the'support surface of the implement jaw without use of extraneous fas tening means. The ends of the retainer or guard plate 21 which bear against the support surface 32 of jaw H are spaced apart terminal portions of the plate connected by an intermediate resilient section of the plate that spans the space between them. Thus the resilience in this intermediatesection biases the inner and outer surfaces thereofqtq positions of. predetermined free-sprung spacing from jaw surface 32. when the terminal pqrtionsof the plate bear lightly against the jaws.

In the molded shape of the retainer such intermediate plate section incorporates anchoring structure in the form of a keyhole-shaped slot 318 whose largeend 2.5 is capable of. passing downward over the keeper. head 3110f an anchorage device for stud 3i fixed in and projecting from the end. of, ivot pin it. In practical. constructiqn, anchorage stud 3!. may comprise an ordinary metallic..drive screw made fast in a hole in one end of the pivot pin and'having its keeper head. 31!. at a predetermined spacing from the support surface 32. of nipper jaw. ll. Abon'tthe keyhole shape of slot 23. the retainer is recessed so that the narrow end 3.3. of, the slot is bordered. by a horsfiShOe-shaped shelf 3.4.01. the same material of, which retainer 21 is made. This shelf. or fi oor of the recess forms two inclined. planes ru ning lengthwise. of the. slot sloping in oppqsrte directions from a midpoint apex 35. whereat shelf 34. is thickest. planes constitute. in their. region the outer surface of the guard plate and facilitate firm anchorage and easy removal f. the retainer as hereinafter explained because keeper. head 353. is spa ed from the aforesaid. jaw surface. a less distanceithan the free-sprung position of apex 35.

Th rm in li d. p1ane.is used. in its general sense meaning an incline which is not. ofnecessity strictly straight nor fiat. In its region berdering around the. keyhole slot. 2:3 v the outer.

surface ofthe main. body of .the retainer plate carries embossed ribbing 4.13.. for decorative purposes which also helps render inconspicuous the head of stud 3!v as well as the keyhole slot 213 a s a whole when the. retainer is lodged in 8 12 .99. rzqsit on on. t e. i plement jaw.

lAlong a portion of. one longitudinal. edge the reta ner z 1. ca rries an angle flange M which'abuts against theedge of the nipperjaw and prevents theretainerfro n swiveling about its anchorage" stu 31 when the retainer-is placed in service 0 Installing theretainer in its lodged. service position is accom-' plished by placing the. retainer against the jaw in il uns nine condition as shown in Figfand then thrustingit forcibly by'flnger'press'ure in the direction, of.arrow 1?; to flatten it into substantially allover c'onforming'c'ont'act with the face 32 of the jaw while at the same time'shuV- These inclined ing the retainer in a direction lengthwise of keyhole slot 28 until the thickest or high spot 35 of the interlocking shelf 34 just cams under the head till of anchorage stud 3|. Thereupon when finger pressure on the retainer is released the inclined plane on shelf 34 which slopes toward thesmall end of! the keyholefslotwill urge the retainer flange ii firmlyagainst the edge of the clipper jaw and hold the entire retainer snugly in place. This is insured by the clearance space thereupon left between the left extremity of the slot 28andbo'th'the stud SI and its head (ill best indicated in Fig. 6. The retainer may purposely be removed by 're'versal of the finger operation which installed it," namely, by depressing its springy body toward the jaw of the instrument and. shoving on it in direction to displace flange 41 from contact with the jaw edge until the large end'of'the key slot hole comes into register with the stud head 39 so that the retainer can be taken off over the stud head '35 away from the instrument jaw. A l'ugtfi projects slightly edgewise from retainer' 'l" beyond the otherwise'flush edge of the nipper jaw" for taking linger-thrust when starting to dislodge retainer 2? from its'service position.

Er'o'm the foregoin description it will be clear that when the retainer. is in placeand'the clip ping edges are in'closed relation there can be no escape, of the nail clippings from the space at the concavity 2d of the jaws inside the retainer; also that even when thecl-ip'ping edges are separated, there remains the catch pocket- 52 between the retainer and jaw llcapable of holding an accumulation of nail clippings 26 as shown in Fig. 9 until they are intentionally. dumped out.

If the retainer 23 is made of transparent resilient plastic material. having the physical properties'elsewhere' herein explainedthe action of the. clipping edges upon the work can be observed. by, looking through the retainer as a window and it can at all. times be seen how full or clippings the catch space is sdthat the user will know when the clippings needto be discharged. The-bowed shape ofthe" retainer enhances what ever. transparency it may possessby-reducing' the blinding highlights that reflect in less area-frorn a curved. transparent surface thari f rom a'flat transparent surface. It hasbeen found that in combination withnickel or chrome plated i'mple'meiit jaws or handles a retainer made of; molded plastic that is tinted with color as well as being transparentpos ses's'es considerable eye and sales appe'al because of" dressing up the plen entin a way to'in'ake' it appear more fancy and less utilitarian 'in'ch'aracterl While herein shown as a detachable pie c efretainer 2'5 may for sdmepu'rpos'es of'the'ii'oventio'n be metallic and may be fixedjto or' integral with the metal body of one of' the nipper'jaws. t

The advantages of the present improvements areobta inable" in variations or; the shapes, ma terials'and' cooperative relationship of the ale; ments' herein chosen'to illustrate the invention wherefore the appended claims. are directedv to and intended to cover as broad I range of. equiv he m-smiteface on the nippers jaw of, a guard plate having...

spaced apart terminal portions slidably bearing against said jaw surface and having an intermediate section spanning the space between said terminal portions containing an anchorage opening and at least in part possessing resilience operative to bias an inner face and an outer face of said spanning section to positions of predetermined spacing from said jaw surface when said terminal portions bear against the latter, and an anchorage projection connected with said jaw outstanding from said support surface having a plate retaining head broader than at least a portion of said opening and spaced from said jaw surface a less distance than said predetermined position of said outer surface of said plate section.

2. A clippings retainer with means for mounting the same detachably against a nippers jaw,

comprising the combination with a support surface on the nippers jaw of, a guard plate having spaced apart terminal portions slidably bearing against said jaw surface and having an intermediate section spanning the space between said terminal portions containing an anchOrage opening and at least in part possessing resilience operative to bias said spanning section into a bowed shape and operative to bias an inner face and an outer face of said spanning section to positions of predetermined spacing from said jaw surface when said terminal portions bear against the latter, and an anchorage projection connected with said jaw outstanding from said support surface having a plate retaining head broader than at least a portion of said opening and spaced from said jaw surface a less distance than said predetermined position of said outer surface of said plate section.

3. Nippers 0f the plier type for severing-work clippings comprising, in combination, levers respectively including work cutting jaws, a coupling pivotally connecting said levers including thrust means permanently holding said levers axially together for free relative swinging movement, a clippings retaining guard plate to be held against one of said jaws having an anchorage opening, and a headed anchorage element projecting from said couplin through said plate opening in a manner to engage and retain said plate against said jaw, whereby said plate can be released from said element for removal from said jaw without disturbing said thrust means of the lever coupling.

4. A clippings retainer with means for mounting the same detachably against a nippers jaw, comprising the combination with a support surface on the nippers jaw of, a guard plate having spaced apart terminal portions slidably bearing against said jaw surface and having an intermediate section spanning the space between said terminal portions containin an anchorage opening and. at least in part possessing resilience operative to bias an inner face and an outer face of said spanning section to positions of predetermined spacing from said jaw surface when said terminal portions bear against the latter and operative to bias said inner face to assume a curvature more acutely concave than the said support surface of the said nippers jaws, and an anchorage projection connected with said jaw outstanding from said support surface having a plate retaining head broader than at least a portion of said opening and spaced from said jaw surface a less dis' tance than said predetermined position of said outer surface of said plate section.

5, A clippings retainer with means for mcunt- 6. ing the same detachably against a nippers jaw, comprising the combination with a support surface on the nippers jaw of, a guard plate having spaced apart terminal portions slidably bearing against said jaw surface and having an intermediate section spanning the space between said terminal portions containing an anchorage opening bordered by the indented floor of a recess sunk in said spanning section and at least in part possessing resilience operative to bias an inner face of said section and said recess floor to positions of predetermined spacing from said jaw surface when said terminal portions bear against the latter, and an anchorage projection connected with said jaw outstanding from said support surface having a plate retaining head broader than at least a portion of said opening and spaced from said jaw surface a less distance than said predetermined position of said outer surface of said plate section for engagement with said recess floor.

6. A clippings retainer with means for mounting the same detachably against a nippers jaw, comprising the combination with a support surface on the nippers jaw of, a guard plate having spaced apart terminal portions slidably bearing against said jaw surface and having an intermediate section spanning the space between said terminal portions having an incline on its outer face and an anchorage opening and at least in part possessing resilience operative to bias said incline and the inner face of said section to positions of predetermined spacing from said jaw surface when said terminal portions bear against the latter, and an anchorage projection connected with said jaw outstanding from said support surface having a plate retaining head broader than at least a portion of said opening and spaced from said jaw surface a less distance than said predetermined position of said incline of said plate section, whereby said incline is disposed to engage with and cam under said retaining head of the anchorage projection in a manner to cause said resilient plate section to spring toward said support surface when said plate is forced to slide along the latter.

7. A clippings retainer with means for mounting the same detachably against a nippers jaw, comprising the combination with a support surface on the nippers jaw of, a guard plate having spaced apart terminal portions slidably bearing against said jaw surface and having an intermediate section spanning the space between said terminal portions containing an anchorage opening bordered by the indented floor of a recess sunk in said plate section disposed to form an incline, said spanning section at least in part possessing resilience operative to bias said incline and the inner face of said section to positions of predetermined spacing from said jaw surface when said terminal portions bear against the latter, and an anchorage projection connected with said jaw outstanding from said support surface having a plate retaining head broader than at least a portion of said opening and spaced from said jaw surface a less distance than said predetermined position of said incline of said plate section, whereby said incline is disposed to engage with and cam under said retaining head of the anchorage projection in a manner to cause said resilient plate section to spring toward said support surface when said plate is forced to slide along the latter.

8. A clippings retainer withmeans for mounting the same detachably against a nippers jaw,

7 Comprising the combination with a support sur face on the nippers jaw of, a guard plate having spaced apart terminal portions islidably bearing against said jaw surf-ace and having an intermediate section spanning the space between said terminal portions containing an anchorage opening and having an outer face sloping in opposite directions from an apex most distant from said support surface in a manner to form inclines, said plate section at least in part possessing resilience operative to bias said inclines and the inner face of said section to positions of predetermined spacing from said jaw surface when said terminal portions bear against the latter, an anchorage projection connected with said jaw outstanding from said support surface having a plate retaining head broader than at least a portion of said opening and spaced from said jaw surface a less distance than said predetermined position of said inclines of said plate section, whereby said inclines are disposed to engage with and cam under said retaining head of the anchorage projection in a manner to cause said resilient plate section to spring toward said support surface as said apex approaches said head in either direction of sliding movement of said plate along said support surface.

9. A clippings retainer with means for mounting the same detachably against a nippers jaw, comprising the combination with a support surface on the nippers jaw of, a guard plate having spaced apart terminal portions slidably bearing against said jaw surface and having an .intermediate section spanning the space between said terminal portions containing an anchorage opening bordered by the indented floor of a recess sunk in said plate section and sloping in opposite directions from an apex most distant from said support surface in a manner to form inclines, said plate section at least in part possessing resilience operative to bias said recess floor and the inner face of said section to positions of predetermined spacing from said jaw surface when said terminal portions bear against the latter, and an anchorage projection connected with said jaw outstanding from said support surface having a plate retaining head broader than at least a portion of said opening and spaced from said jaw surface a less distance than said predetermined position of said recess floor of said plate section, whereby said inclines are disposed to engage w n and cam under retaining head of the anchorage projection in a manner to said resilient plate section to spring toward said support surface as said apex of the recess floor approaches head in either direction of sliding movement of said plate along said support surface.

1G. A clippings retainer with means for mounting the same detachably against a nippers jaw, comprising the combination with a support surface on the nippers jaw of, a guard plate having spaced apart terminal portions slidably bearing against said jaw surface and having an intermediate section spanning the space between said terminal portions containing an anchorage opening and having an outer face sloping in opposite directions from an apex most distant from said support surface in a manner to form inclines, said plate section at least in part possessing resilience operative to bias said inclines and the inner face of said section to positions of predetermined frorn'said jaw surface when said ter- 8 initial portions bear against the latter, as anchorage projection connected with said jaw outstanding from said support surface having a plate retain-ing head broader than at least a portion of said opening and spaced from said jaw surface a less distance than said predetermined position of said inclines of said plate section whereby said inclines are disposed to engage with and cam under said retaining head 'of the anchorage projection a manner to cause said resilient plate section to spring toward said support surface and simultaneously set up a thrust automatically urging the plate to slide along said support surface as said apex approaches said head in eithe direction of sliding movement of said plate along said support surface, and a flange on said plate sufficiently distant from said apex to hook over the edge of said support surface in a manner to stay said plate against sliding responsively to said thrust, whereby'said plate becomes removably lodged on said sup-port surface.

11. A clippings retainer with means for mounting these-me detachably against a nip-10ers jaw, comprising the combination with a support surface on the nippers jaw 'of, a guard plate having spaced apart terminal portions slid-ably bearing against said jaw surface and ha'vingan intermediate section spanning the space between said terminal portions containing an anchorage open ing and having an outer face sloping in opposite directions from an apex most distant from said support surface in a manner to forrninclines, said plate section at least in part possessing resilience operative to bias said inclines and the inner face of said section to positions of predetermined spacing from said jaw surface when said terminal portions bear againstthe latter, an anchorage projection connected with said jaw outstanding from said support surface having a plate retaining head broade than at least a portion of said opening and spaced from said jaw surface a less distance than said predetermined position of said inclines of said plate section whereby said inclines are disposed to engage with and cam under said retaining head of the anchorage projection in a manner to cause said resilient plate the edge of said support surface in a manner to stay said plate against sliding responsively to said thrust whereby said plate becomes removably lodged on said support surface, together with a push lug on said plate projecting 'su fii-- ciently beyond an opposite edge or said support surface to expose said lug to finger thrust for starting said plate away from its lodged position on said support surface.

GEORGE E. SORENSE-N.

,nnrnaaricns orrnn The following references are of record in the file of this patent:

UNITED srarns PATENTS Number Name Date I 1,706,712 Sklar i r ai. ea -192a 2,145,132span> $611011 Feb 7, 1939