US979361A - Means for fastening rubber heels. - Google Patents

Description

I. VULPESCU.

MEANS FOR FASTENING RUBBER HEELS.

APPLICATION FILED M1144, 1910.

979,361 Patented Dec. 20, 1910.

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MEANS ron stam na RUBBER HEELS.

Specification of Letters Iatent. Patented Dec. 20, 1910. Application filed January 1;;1910. Serial No. $118,117.

To all whom it may concern:

Be it known that I, Iov VULPESGU, a subject of the Emperor of Austria-Hungary, residing at Detroit, in the county of Wayne and State of Michigan, have invented new and useful Improvements in Means for Fastening Rubber Heels, of which the following is a specification.

This invention relates to improvements in means for fastening rubber heels to a shoe and has for one of its objects the provision of a device of that kind which may be employed to fasten most forms of rubber heels now in use.

Another object is the provision of a cushion which maybe readily ap lied to the heel of a shoe and when so applie d may be turned to any position after the wear on one part of the cushion has been greater than the wear on another part, whereby uniform wear Will be produced upon the cushion throughout its use.

With these and other objects in- View, which will more fully hereinafter appear,

the present invention consists in certain. novel details of construction and arrangement of parts, hereinafter fully described,

illustrated in the accompanying drawings and more particularly pointed out in the appended, claim; itbeing understood that Various changes in the form, proportion, size, and minor details of the device 'may be made, within the scope of the appended claim, without departing from the spirit-or sacrifi'cing any of the advantages of the invention.

In the accompanying drawings, forming a part of the specification ;-Figure 1 is a vertical section taken through a heel of a shoe and rubber cushion applied thereto and also showing the device in vertical section and securing the cushion to the heel. Fig.

2 is a detail perspective of the female memher or spike. Fig. 3 is a similar view of the male or clamping member. Fig. t is a vertical section of an improved form of cushion to be employed with my device. Fig. 5 is a detail perspective of the same. Fig. 6 is a modified form of the female-member or spike.

Similar numerals of reference are employed to designate corresponding parts throughout. I

ihe heel of the shoe is designated by the numeral 5 and the rubber heel or cushion by the numeral 6. Since these parts are of well 1 known construction a detail description of the same need not be given.

the present invention is shown to consist of what will subsequentlybe termed a female member or spike designated by the numeral sharpened point thus affording a construction which may be driven into an ordinary heel. The spike or female member is noncylindrical in cross section and" extending inwardly from the end opposite to the sharpened point is an interiorly threaded bore 8, the inner-end of which terminates at a point between themiddle female member or spike. The outer end of tion of this construction will be described later.

What will subsequently be termed a male member or clamping screw is designated by the numeral- 10 and at one end is provided with an enlarged head 11 said head being provided with a transverse recess for the reception of a suitable implement by means of which the threaded shank 12 may be screwed into the threaded bore 8 of the female member or spike.

It is well. known. that the usual rubber heel is constructed with a transverse opening such as shown at 13 in Fig. 1, this opening extending from the inner face of the heel and terminating in acounterbore or opening 14. In the application of my device to an ordinary rubber heel the female member or spike is first driven into the heel 5, at the desired point, after which the male member or clamping screw through the counterbore 14 and through the opening 13 until its threaded shank enters the bore 8 is turned until its head 11 bears upon the lower end of the counter opening. hen the parts are so positioned by further turning the clamping screw the rubber overlying the flared end of the bore 8 .will be forced into the said flared end, whereby lateral movement of the rubber heel will be positively prevented during use.

By reference now to Figs. 4c and 5 it will be seen that I provide a form of cushion designated by the numeral 15. seen that when applied to an ordinary shoe heel that a plurality of these cushions wil be necessary in order to give an even hearing surface for the heel. The cushions are 7. This member terminates at one end in a the bore is flared as shown at 9. The func- The device forming one of the subjects of and pointed end of the 12 is insertible after which the clamping screw i n will be preferably of rubber or analogous material and substantially hemispherical in-contour. Each -cushien is provided with a central opening 16 extending inwardly from its flat surface and terminating in a counterbore or opening 17. The openings 16 and 17 receive themale member or clamping screw, the latter entering the female member or spike in the manner before described. With the provision of the cushion just described it will be evident that when one side of the same wears in advance of the opposite side that by loosening the screw the said cushion may be turned to bring theunworn side into a position to be borne upon, whereby uniform wear can be produced upon the cushion throughout its use.

In the modified form shown in Fig. 6 the female member or spike is provided on its outer surface with a plurality of upstruck portions 18 which constitute teeth, the latter, when the spike is driven into the heel of the shoe, embedding themselves into the leather and preventing accidental displacement of the said female member.

From the foregoing description it can be seen that I have provided a device which is comparatively simple in structure and inexpensive in manufacture, parts and these of derangement mum.

I claim A fastening device of the character described comprising a female member having a cone-shaped end, and a barbed outer surface, and further having anaxial threaded opening flared at its outer end, and a male member having a threaded shank to be screwed into the opening of the female member, said male member further having at one end of the shank an enlarged head 00- operating with the flared end of the opening of the female member for the purpose described.

In testimony whereof I afiiX in presence of two witnesses.

IOV VULPESCU.

so arranged that the danger will be reduced to a minimy signature W'itnesses SACKE REVEANO, H. BAULINE.

embodying few

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