Title:
Heel and cushion connecter
United States Patent 2078551


Abstract:
This invention relates to shoe heels and more particularly to a spring cushion heel. The principal object of this invention is to provide a cushion connecter between a conventional leather heel and a shoe which connecter is formed as a unitary element from a sheet metal spring steel stamping....



Inventors:
Williams, Villor P.
Application Number:
US7235236A
Publication Date:
04/27/1937
Filing Date:
04/02/1936
Assignee:
Estelle, Gomboror W.
Primary Class:
International Classes:
A43B21/32
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Description:

This invention relates to shoe heels and more particularly to a spring cushion heel.

The principal object of this invention is to provide a cushion connecter between a conventional leather heel and a shoe which connecter is formed as a unitary element from a sheet metal spring steel stamping.

Another object of the invention is to provide the cushion connecter element with a plurality of spring fingers that are to be secured to the heel, the element being so constructed as to receive the heel therein in seating and guiding engagement to constitute a unit handled organization.

la A further object of the invention relates to the provision of detachable and readily receivable fastening elements between the shoe and the cushion of spring connecter carrying the heel.

Other objects of the invention relate to the provision of a cushion heel that is strong, durable and economical in construction, and which is especially designed to eliminate shocks and jars to the body while walking, relieve tiredness in prolonged standing, and which will be found es.5 pecially adapted for wearing during long trips on foot.

A still further object of the invention relates to the detachable feature of the cushion heel unit that requires a minimum of time and effort in its removal to permit the replacement of the heel carried by the cushion connecter when said heel has become worn in use, with a repeated use of the same cushion connecter.

An additional object of the invention relates to the use of the cushion connecter as a resilient support and connection between relatively movable members.

With the above and other objects in view, the invention further includes the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawing and pointed out in the appended claims.

In the drawing:Fig. 1 is a side elevation view of a portion of the shoe having the cushion heel applied thereto.

Fig. 2 is a bottom plan view of the cushion connecter.

Fig. 3 is a top plan view of the cushion connecter taken on line 3-3, Fig. 1.

Fig. 4 is a sectional view of the cushion connecter and attached heel taken on line 4-4, Fig. 3.

Figs. 5 and 6, are detail sectional views of two modifications in removable fastening members.

Fig. 7 is a similar detail sectional view and Fig. 8 is a plan view taken on line 8-8, Fig. 7 of another removable fastening member modification.

Figs. 9, 10 and 11 are similar detail sectional views of three further modifications of removable fastening members.

Figs. 12, 13 and 14 show additional sectional views of modifications in fastening the spring fingers to the leather heel section. Referring to the drawing, 10 denotes a shoe provided with my improved cushion heel indicated generally by the reference character I I.

The cushion heel 11 is made up of two parts, one of which is a heel section 12 of conventional de- 5 sign built up of a plurality of leather laminations in the manner well known in the art, and the other a cushion connecter 13. The cushion connecter 13 shown in bottom plan view in Fig. 2, is formed as a sheet metal stamping of thin gauge spring steel and comprises a fiat body portion 14 shaped to the configuration of the heel section 12 and provided with a peripheral flange 15 that is of uniform width throughout said flange being adapted to snugly surround the heel section 12 in a manner to be hereinafter described. Struck out from the body portion 14 and projecting from the bottom surface 14a, is a plurality of spring fingers 16, which in the preferred form shown are arranged in parallel opposed pairs. At this point it is to be understood that the spring fingers 16 may assume a variety of shapes and directions and may be of any desired number, being limited only to being struck out from the body portion 14 within the confines thereof and are so dimensioned that the aggregate area thereof is the maximum possible obtainable with reference to the area of said body portion so as to provide the maximum possible resilient support. While the term spring fingers has been utilized it is within the intent of my invention to include any form of spring formation that may be struck out from the body portion 14. It is also within the intent of my invention to utilize spring fingers that may be separate from said body portion and which may be secured thereto in any desired manner as by spot welding or riveting, which construction is deemed to be the mechanical equivalent of the struck out spring fingers shown.

Each spring finger 16 is provided on the free end thereof with a nail receiving opening 17. The formation of said spring fingers 16 is such that the ends thereof terminate in wide supporting portions all of which preferably lie in a plane parallel to the body portion 14. Adjacent the flange 15, the body portion 14 is provided with a plurality of spaced formations or bosses 20 which project above the top surface 14b of the body portion 14. The bosses 20 are preferably equal in height and of a length less than the conventional thickness of the sole 10a of the shoe, see Fig. 4.

In attaching the cushion connecter 13 to the heel section 12, the same is placed thereover so that the flange 15 thereof will fit over the sides of the heel in a telescoping and guiding relationship. When so related the spring fingers 16 are secured to the heel section 12 by driving nails 21 through the opening 17 provided therefor in said. spring fingers. The nails 21 are preferably of the barbed type so that when driven into the heel section 12 they will become permanently locked therewith, loosening of the nails 21 and a consequent separation of the spring fingers 16 from the heel section 12 being thus positively prevented. However, prior to the attachment of the spring fingers 16 to the heel section 12, there is seated in each of the bosses 20, a cylindrical internally threaded sleeve 24, see Fig. 4 and enlarged view in Fig. 5, provided with a flanged head 25. The sleeve 24 may be secured in each boss 20 in any desired manner as for example by a force fit or by providing serrations on the outside surface of said sleeve. With the threaded sleeves 24 thus positioned within the bosses 20 the cushion connecter is secured to the heel section 12 in the manner as described above for unit handling therewith.

The heel receiving portion of the sole 10i is provided with a plurality of openings 26 extending entirely through the same and spaced and arranged in a manner identical with the spacing and arrangement of the bosses 20 which are positioned within said openings 26 to seat the body portion 14 on the sole 10a. Screw elements 28 of any appropriate design provided with enlarged flat heads 29 and shoulders 30 are inserted through the openings 26 into threaded engagement with the sleeves 24, for securely holding the cushion connecter 13 (and heel section 12 carried thereby) to the shoe 10. The heads 29 of the screws 28 are covered by a suitable pad and the inner sole of the shoe (not shown), the whole being so designed that the heads 29 will not be felt by the wearer of the shoe. I desire it understood that while I have shown the spring fingers 16 attached to the heel section 12 by means of barbed nails 2 , I nevertheless contemplate the use of any type of driven fastening means that adapt themselves for use in this construction. One example of such a fastening means is the common form of U-shaped staple which may be arranged to straddle the end of the spring fingers and driven into the heel section. With the prongs of the staple of a greater length than the thickness of the heel section, the ends of the prongs will be bent over to securely lock the staple and the associated spring finger in place.

It is thus seen that an extremely simple and efficient manner of providing a spring cushion for 05 a solid heel has been devised, both in the design of the cushion itself and in the manner of attaching the same to the heel for unit handling therewith, and in the attachment thereof to the shoe proper. In the event it is desired to replace the heel section 12 when the same has become worn all that is necessary is to remove the screws 28 by unscrewing the same, and detaching the cushion connecter 13 and heel section 12 from the shoe, the heel section 12 being removed from 76 the spring fingers 16 by merely snapping off the heads of the nails 21. A new heel is then fitted to the cushion connecter 13 and fastened thereto in the manner as described above, the whole being then attached to the shoe by the mere replacement of the screws 28. In Fig. 6 the body portion 14 is shown provided with circular openings 20a through which the threaded sleeves 24, serrated as at 31 are forced for locking engagement with said body portion.

This construction as will be observed dispenses with the bosses 20 and is thus a cheaper construction.

Figs. 7 and 8 illustrate a modification of the construction shown in Fig. 6, wherein the body portion 14 is provided with a square opening 20b for the reception of a four sided internally threaded sleeve 24a. This construction as well as those hitherto described will obviate turning of the threaded sleeve relative to the body portion 14.

In some cases the bosses 20 in the form shown in Fig. 5 may be formed square t'o receive sleeves such as 24a.

In Fig. 9, an altogether different form of fastening connection is employed. In this case the body portion 14 is provided with a circular opening 200 which is adapted to be engaged by the screw 32 of the self-tapping type. In some cases the openings 200 if the gauge of the stamping forming the cushion connecter 13 is thick enough, may be threaded to receive a threaded screw 32. A modified form of this construction is shown in Fig. 10. In this case there is provided within the openings 20d of the body portion 14, eyelets or bushings 34 that are flanged over at their ends to permanently unite the same to said body portion. The interior of said eyelets 34 are threaded for the reception of the screws 35. To permit the body portion 14 to lie flush against the bottom surface of the sole 10a the openings 26 in the sole 10a are enlarged at thin lower ends. When a permanent attachment of the cushion connecter 13 to the shoe is desired, while any one of the above fastening devices may be utilized, yet a fastening medium that would require no machining would be highly desirable. Such a construction is shown in Fig. 11 where the body portion 14 is shown permanently attached to the sole 10a of the shoe by means of an eyelet 38.

This form of eyelet is inserted into the openings 20e of the body portion in locked engagement therewith and extends beyond the upper surface 10b of the sole 10a, as shown by the dotted lines, said end being flanged over in the manner well known, to thus securely clamp the body portion 14 to the sole 10a. A plug 39 of wood or other suitable material may be inserted into the opening of the eyelet to close the same. The eyelet 38 may be replaced with a conventional solid rivet construction.

As described above the attachment of the spring fingers 16 of the connecter to the heel section 12 is accomplished by means of the barbed nails 21, which for most cases is highly satisfactory. However, other forms of fastening elements may be utilized. In Fig. 12, there is shown a detachable connection between the spring fingers 16 and the heel section 12 of a type similar to that shown in Fig. 5. In this case the heel section is provided with a vertical opening 40 to register with the opening 17a in the spring finger 16. Mounted downwardly through the opening 17a into the opening 40 is a sleeve or bushing 41 provided with a flat head 42 and a threaded bore for the reception of the screw 43, inserted through the other end of the opening 40. The bushing 41 may be provided with exterior threads to provide an additional locking relationship with the heel section 12. By applying a screw driver to both the bushing 41 and screw 43, the same may be drawn together for tightly clamping the spring finger 16 to the heel section 12 in the manner readily apparent. As will be obvious this form of fastening may be modified in a variety of ways as indicated above with reference to the showings in Figs. 5 to 9. The connection embodying the bushing 41 and screw 43 may be simplified by forming the bushing as a plain sleeve with a head 42 and an unthreaded bore and the screw 43 replaced with a driven screw having a wide pitch spiral thread thereon, with said screw adapted to be driven into the bore of the bushing 41 for locking engagement therewith.

In Fig. 13, the spring finger 16 is shown securely and permanently fastened to the heel section 12 by means of a rivet 45. The conical head 46 of the rivet is disposed at the bottom of the heel with the rivet headed over the spring finger end to form the flat head 47. This construction as will be appreciated is both durable and cheap, and incidently highly efficient and simple in application.

A similar form of riveted construction is shown in Fig. 14. In this case however one head 50 of the rivet 51, preferably flat, engages the spring finger 16 with the other head 52 arranged within the heel section 12. This construction is peculiarly adaptable in cases where the head is built up of a plurality of. leather laminations as for example in this case, there being shown. Thus in the assembly of the cushion connecter 13 to the heel section 12, the spring fingers 16 are securely and permanently attached to the upper two layers a and b by means of the rivet 51, which additionally serves to hold the two layers a and b most securely together. The third layer C which comprises the bottom layer of the heel section 12 is attached to the upper two layers a, b by being glued and nailed thereto in the manner well known. As the heel becomes worn, instead of replacing the entire heel section as would practically be necessary in any of the forms hereinabove described, all that would be required in this case would be the replacement 0g of the lower layer C. The pulling off of the layer C by the shoe maker would not interfere with the connection of the upper two layers a, b to the spring fingers 16. In some cases it would not be necessary to remove the heel and cushion connecter from the shoe. Of course if the wear in the heel section extends beyond the lower layer it will be necessary to remove the entire heel section in the event the replacement or repair thereof is desired. While the cushion connecter has been preferably shown as a resilient connecting medium between a heel and shoe, it will be obvious that the same may be widely utilized in industry as a resilient support or connecter in other constructions.

While there are herein shown and described the preferred embodiments of the invention, it is nevertheless to be understood that changes may be made therein without departing from the spirit and scope thereof as claimed.

I claim:1. A cushion support member comprising a flat heel-shaped sheet metal plate having integral spring fingers depending therefrom, means on said plate for receiving fasteners, means on said spring fingers for receiving fasteners, one of said means non-rotatably receiving a plurality of fastening elements, each of said fastening elements adapted to be engaged by an interfitting separable fastening member, and a flange depending from said plate and extending around the entire edge thereof.

2. A shoe heel comprising a movable heel section of conventional design and a cushion connecter, said cushion connecter having a flat body portion with integral spring fingers depending therefrom, means on said body portion non-rotatably receiving a plurality of fastening elements, each of said fastening elements adapted 3 to be engaged by an interfitting separable fastening member, and fasteners attaching the free ends of said spring fingers to the movable heel section.

3. In the shoe heel structure as set forth in claim 2, a depending peripheral flange on said body portion snugly surrounding the upper portion of said movable heel section in guiding relation.

4. In the shoe heel structure as set forth in claim 2, a depending peripheral flange on said 45 body portion snugly surrounding the upper portion of said movable heel section in guiding relation, with the edge of said flange extending beyond the free ends of said spring fingers and the top surface of said heel section, whereby to 50 exclude the entry of dirt and foreign matter between said heel section and cushion connecter.

VILLOR P. WILLIAMS.

CERTIFICATE OF CORRECTION.

Patent No. 2,078,551. April 27, 1937.

VILLOR P. WILLIAMS.

It is hereby certified that the name of the assignee in the above numbereu patent was erroneously written and printed as "EYelle \V.

Gomboror" whereas said name should have been written and *Ainted as Estelle W. Gomborov, of Baltimore, Maryland, as so..n 'y the records of assignments in this office: and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 31st day of August, A. D. 1937.

Leslie Frazer (Seal) Acting Commissioner of Patents.

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