US2117475A - Means for securing heels to shoes - Google Patents

Description

May 17, 1938. H.GORDON YET AL 2,117,475

MEANS FOR`SECURING HEELS TO SHOES Filed May 25,r 1956 Patented May 17, 1938 UNITED STATES PATENT OFFICE MEANS FOR SECURING HEELS TO SHOES Hiram Gordon and Albert C. Rogge, Columbus, Ohio, assignors to Lock-n Heel Company, Chicago, Ill., a corporation of Illinois Application May 23, 1936, Serial No. 81,476

11 Claims.

tions of shoes.

In the patent to A. G. Eichhorn No. 2,023,671, granted December 10, 1935, a shoe heel attaching construction is disclosed comprising a metallic plate which is secured to the heel seat of a shoe 0 by means of integral prongs passing through the insole and outsole of the shoe and clinched into permanent engagement therewith, the plate being further formed with integral spaced downwardly extending ears which are receivable within correspondingly formed slots provided in the upper portion of the heel body, the heel proper being secured to the downwardly extending ears of the plate by means of a transverse pin extending into the heel from the breast surface thereof and passing through apertures formed in the ears of said parte. In the application of a plate or thiskind to the heel seat of a shoe, it has been customary heretofore to trim or cut the outsole by an independent machine or knife around its margins to effect a preliminary shaping of the outsole in order that it may receive and accommodate the heel attaching plate.

In accordance with the present invention, the plate itself has its outer margins formed with an integral upwardly directed flange having a sharpened cutting edge, whereby when the plate is forced into engagement with the shoe by pressure, the said cutting flange penetrates the heel seat region of the outsole to automatically trim or cut the latter simultaneously with the 5 operation of securing the plate to the shoe, there-` by avoiding the expense and delay of the preliminary cutting or trimming of the outsole to form: the heel seat.

Another object of the invention resides in the provision of a heel attaching' plate ofthe character set forth wherein integral attaching prongs, projecting upwardly from the margins of the plate, and which penetrate both the insole and outsole, are provided with reenforcing` ribs throughout the major portion of the length thereof, an-dA terminate at their outer ends in unreenforced or mechanically weaker extremities, whereby when the plate is forced into operative and secured engagement with the heel region of the shoe, the said reenforced prongs will readily penetrate the leather comprising both the insole and outsole, and the said weaker extremities, upon engagement with the `metallic heel facing of a a shoe last will be'inwardly and reversely turned into firm clinched engagement with the insole, whereby said plate will produce a rm anchoring means to which an associated heel may be securely attached.

For a further understan-ding of the invention,

reference is to be had to the following description and the accompanying drawing, wherein:

Fig. 1 is a perspective view of a shoe heel attaching plate constructed in accordance with the present invention;

Fig. 2 is a vertical longitudinal sectional view taken through the plate;

Fig. 3 is a vertical transverse sectional View thereof; Y

Fig, 4 is a detail perspective view disclosing the plate immediately prior to being forced into secure engagement with the heel receiving region of a shoe;

Fig. 5 discloses the plate in its operative position on the heel region of the shoe and also disclosing the U-shaped blank cut from the outsole by the plate when the latter is forced into its operative position;

Fig. 6 is a vertical transverse sectional view on the plane indicated by the line VI-VI of Fig. 5 disclosing the `manner in which the attaching prongs of the plate are clinched in engagement with the insole when the plate occupies its applied position on the shoe; l

Fig. '7 is a vertical longitudinal sectional view gisclosing the plate connected with an associated eel;

Fig. 8 is a detail view of the heel attaching pin.

Fig. 9 is a perspective view of a modified type of shoe heel attaching plate.

Referring more particularly to the drawing, the improved heel attaching plate, comprising the present invention, is designated generally at l. This plate is employed to mechanically unite a heel, indicated at 2, with the heel receiving region 3 of a shoe 4. The outsole of the shoe is in-Y dicated at 5, the adjoining insole at 6, and the upper of the shoe at 1. l

As in the aforesaid patent to Eichhorn, the plate I is preferably formed from metal and is longitudinally and transversely curved, as indicated at 8, to constitute a heel seat when applied to the shoe. The dimensions of the plate will of course vary with the size of the shoe and the heel to be attached thereto.

Integrally depending from the plate l,.as shown in Figs. 2 and 3, are spaced ears or keepers 9y which may be provided with weakened regions as indicated at ID or may be formed with apertures Il, as indicated in Fig. 4. These ears or keepers are received within correspondingly formed slots I2 extending inwardly into the body of the heel 2 from the upper surface thereof. In addition, the body of the heel is provided with a transverse bore I3, extending inwardly from the breast face I4 of the heel, the bore I3 being located approximately in registration with the weakened region I of the ears or keepers 9 or the apertures II thereof. The bore I3 is formed to receive a securing pin I5 which is driven into the heel body from the breast surface and passes through the weakened regions I0 of the ears 9 or through the openings II expressly provided therefor. Preferably, the pin is provided, as shown in Fig. 8, with annular shoulders I6 which, when the pin is operatively positioned as shown in Fig. '7, lockingly engage with spurs produced by the pin when it penetrates the weakened regions III of said ears, or when being forced through the openings II. This construction serves to retain the pin positively in its secured position within the heel body, and to prevent accidental withdrawal thereof.

In accordance with the present invention, the outer marginal portion of the plate I, except the forward edge thereof is provided with an upwardly directed substantially vertical flange II, as shown in Figs. 2 and 3, Yand with integral attaching prongs I8, which project a considerable distance above the flange I I. The upper edge of the flange Il is beveled or sharpened as at I9 so that it will constitute a cutting edge, and the outer or upper ends 2U ofthe prongs IS are likewise sharpened so that they will readily penetrate the leather material from which the insoles and outsoles of shoes are formed. The prongs I8 are longitudinallyY reenforced by integral ribs 2I so that they will possess suilicient stiffness to prevent the same from bending or turning from their fixed positions on the plate when being driven throughthe insole and outsole, the ribs 2I, however, terminate short of the extremities 2l) of said prongs.

At the time of attaching the plate I to an associated shoe,.the latter is carried by the usual last indicated at 22, the latter being provided with the customary metallic heel facing 23. The plate I is preferably applied to the heel region of the shoe by pressure supplied by a securing machine of the type, for instance, set forth in our application Serial No. 81,478 filed May 23, 1936 or that disclosed in the patent to Dopp 2,017,234 issued October 15, 1935. Before the plate is applied, the outsole in registration with the breast line of the heel to be applied thereto is inwardly and transversely slit as at 2G on the opposite sides thereof, and the forward edges of the plate I, when applied to theV outsole,. are vertically aligned with these slits. As pressure is applied to the plate, the prongs I8 thereof penetrate the outsole and insole until the penetrating terminals ,2B of said prongs engage with the metallic last facing 23. Due to the flat, unreenforced construction of the terminals 20, the latter are turned inwardly and reversely bent, as at 25 in Fig. 6, to produce what may be termed a shhook clinch.

Simultaneously with this operation, the cutting edges of the iiange I1 penetrate the outsole and cut the latter to produce a readily removable U-shaped blank 26,V as disclosed in Fig. 5. Thus by the construction of the plate I and by itsaforesaid manner of attachment to the heel region of the shoe, there is simultaneously effected the trimming of the outsole and the formation of a completely finished heel seat to which the heel 2 may be readily connected through the provision of the attaching pin I5. The invention, therefore, eliminates the usual operation of independently trimming the heel seat prior to the application of the attaching plate, and avoids the expense and delay of such preliminary heel seat trimming. In addition, the prongs are reenforced so that they will not bend or deviate from their intended paths of travel while penetrating the leather of the insole and outsole and through the provision of the weakened outer ends or terminals 29 of said prongs secure clinching engagement of the prongs with the insole and outsole is obtained which will not in any way injure or cause discomfort later on to the heels of the wearers of said shoes.

In the modified form of heel attaching plate illustrated in Fig. 9, the forward ends of the flange I'Ia are extended and sharpened at their upper edges as at I9a. to provide extended cutting edges which will reach to the transverse slits 24 and completely sever the surplus stock from the outsole in the event the heel to be attached to the shoe has a breast line which is spaced forwardly from the edge of the plate I.

What is claimed is:

1. A shoe heel attaching device comprising a sheet metal plate shaped to conform to the contour of the heel seat surface of a shoe, an upwardly directed marginal cutting ilange formed with said plate, integral upwardly directed fastening prongs formed with said plate and ange, and spaced downwardly directed heel attaching ears integrally formed with the body of said plate.

2. A shoe heel attaching device comprising a sheet metal plate having a body portion slightly curved in longitudinal and transverse directions to produce a metallic heel seat, and substantially continuous sole stock cutting means formed with the marginal portions of said plate.

3. A shoe heel attaching device comprising a sheet metal plate having a body portion slightly curved in longitudinal and transverse directions to produce a metallic heel seat, and substantially uninterrupted sole stock cutting means integrally formed with the marginal portions of said plate.

4. A shoeheel attaching device comprising a sheet metal plate shaped to conform substantially to the contour of the heel seat surface of a shoesaid plate including a plurality of spaced pointed fastening elements directed upwardly from the edge of the plate, said plate including a pair of downwardly directed ears, and a marginal sole stock cutting flange integrally formed with said plate.

5. A shoe heel attaching device comprising a sheet metal plate longitudinally and transversely curved downwardly to correspond to the heel seat of a shoe and the base of a heel adapted to be permanently and rigidly attached to the heel of a shoe by integral prongs directed upwardly from the edge of the plate and to provide a marginal area between the edge of the plate and the edge of the heel seat, a pair of spaced apertured ears dependingvfrom said plate, and upwardly directed sole stick cutting flanges disposed between said prongs, said flanges being of suicient height to penetrate the outsole stock of an associated shoe and to produce a substantially U-shaped cut in said outsole stock when said plate occupies a heel seat forming position on the shoe.

6. A shoe heel attaching device comprising a sheet metal plate shaped to constitute a heel seat, integral fastening prongs projecting upwardly at spaced intervals from the marginal edge of said plate, said prongs being of suieient length to penetrate the outsole and insole stock of a shoe and to be bent over into clinching engagement therewith, reenforcing ribs extending longitudi nally of said prongs, and a depending ear provided on said plate, said ear being formed with a centrally arranged weakened portion.

'7. A shoe heel attaching device comprising a sheet metal plate formed from a one piece stamp ing, the body of said plate being longitudinally and transversely curved to constitute a heel seat, an upwardly directed marginal cutting ange of substantially U-shaped formation struck from said plate, a plurality of relativelyl spaced sole penetrating attaching prongs constituting an integral portion of said plate, and integral heel attaching means depending from the body of said plate.

8. 'I'he method of forming shoe heel seats, which comprises securing the outsole and insole of a shoe to the uppers thereof, transversely and inwardly slitting the outsole in registration with the breast line of a heel to be attached thereto, forcing a pronged metallic heel attaching plate into engagement with the heel region of the outsole so that the prongs of said plate will be pressed through said outsole and insole and clinched in engagement therewith, and, simultaneously with the attachment of said plate, cutting the outsole to remove a U-shaped blank therefrom whereby to cause said plate to completely cover the heel receiving region of the outsole.

9. A shoe heel attaching device comprising a sheet metal plate longitudinally and transversely curved to t the seating surface of a shoe heel, a substantially U-shaped sharpened flange extending upwardly from the marginal edge of said plate, and reenforced prong extensions provided at spaced points on said ange.

10. A shoe heel attaching device comprising a sheet metal plate curved to fit the seating surface of a shoe heel, a substantially U-shaped upwardly extending flange formed at the marginal edge of said plate, said flange being beveled toward the inner edge to form a knife, reenforced prong extensions provided at spaced points on said flange, the outer extremities of said prongs being inwardly tapered to form a cutting edge substantially in alignment with the cutting edge on said flange.

1l. The combination with a shoe having an insole, an outsole and uppers secured together, of a heel attaching plate formed to lit the seating surface of the heel for said shoe, said plate being provided with an upwardly directed sharpened flange, prong extensionsprovided at spaced points on said ange, the outer extremities of said prongs extending through the shoe outsole and insole and being clinched in position, depending ears formed on said plate, said ears being arranged in slots in the shoe heel, and a pin extending into an opening in said heel and through said ears, said pin being provided with a plurality of spaced annular shoulders.

HIRAM GORDON. ALBERT C. ROGGE.

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